/* roulang page: index */
:root {
    --ink: #141610;
    --ink-deep: #0e100d;
    --ink-soft: #22261f;
    --cream: #f4f1e8;
    --paper: #ffffff;
    --green: #0ecfa3;
    --green-bright: #2ce2b8;
    --lime: #d8ff73;
    --gray: #8f9992;
    --gray-deep: #5c6660;
    --line: rgba(0, 0, 0, 0.08);
    --line-dark: rgba(255, 255, 255, 0.1);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 10px;
    --radius-pill: 999px;
    --shadow-soft: 0 20px 48px rgba(20, 22, 16, 0.06);
    --shadow-dark: 0 18px 44px rgba(0, 0, 0, 0.28);
    --shadow-card: 0 8px 22px rgba(20, 22, 16, 0.045);
    --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    --mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    background: var(--cream);
    color: var(--ink);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { border: none; background: none; cursor: pointer; }
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
time, .mono { font-family: var(--mono); }

.wrap {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 28px;
    padding-right: 28px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 15px;
    letter-spacing: 0.01em;
    transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s var(--ease);
    min-height: 48px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--green);
    color: var(--ink-deep);
    box-shadow: 0 10px 28px rgba(14, 207, 163, 0.22);
}

.btn-primary:hover {
    background: var(--green-bright);
    transform: translateY(-2px);
    box-shadow: 0 14px 34px rgba(14, 207, 163, 0.26);
}

.btn-ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.32);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.btn-darkline {
    background: transparent;
    color: var(--ink);
    border: 1px solid rgba(20, 22, 16, 0.24);
}

.btn-darkline:hover {
    border-color: var(--ink);
    background: rgba(20, 22, 16, 0.04);
    transform: translateY(-2px);
}

.btn i {
    font-size: 13px;
    transition: transform 0.25s var(--ease);
}

.btn:hover i {
    transform: translateX(4px);
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(14, 16, 13, 0.9);
    color: #fff;
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: border-color 0.3s ease;
}

.site-header.is-scrolled {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header-inner {
    max-width: 1380px;
    margin: 0 auto;
    padding: 0 28px;
    height: 76px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    flex-shrink: 0;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: var(--green);
    color: var(--ink-deep);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 21px;
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1;
}

.brand-name {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 0.01em;
    line-height: 1.2;
    display: flex;
    flex-direction: column;
}

.brand-name strong {
    font-weight: 800;
}

.brand-name small {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--green);
    letter-spacing: 0.14em;
    margin-top: 2px;
    opacity: 0.85;
}

.main-nav {
    display: flex;
    align-items: center;
    flex: 1;
    gap: 6px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 10px;
}

.nav-list a {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 16px;
    border-radius: var(--radius-pill);
    color: rgba(255, 255, 255, 0.72);
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s ease, background 0.2s ease;
}

.nav-list a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.nav-list a.is-active {
    color: var(--ink-deep);
    background: var(--green);
    font-weight: 700;
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: auto;
}

.nav-search {
    position: relative;
}

.nav-search .search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255, 255, 255, 0.48);
    font-size: 13px;
    transition: color 0.25s ease;
}

.nav-search input {
    width: 180px;
    height: 42px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.08);
    padding: 0 18px 0 40px;
    color: #fff;
    font-size: 14px;
    transition: width 0.3s var(--ease), border-color 0.3s ease, background 0.3s ease;
}

.nav-search input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.nav-search input:focus {
    outline: none;
    width: 230px;
    border-color: rgba(14, 207, 163, 0.7);
    background: rgba(255, 255, 255, 0.1);
}

.nav-search input:focus + .search-icon,
.nav-search:hover .search-icon {
    color: var(--green);
}

.header-login {
    height: 42px;
    padding: 0 20px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    color: #fff;
    font-weight: 600;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.header-login:hover {
    border-color: var(--green);
    color: var(--green);
}

.header-cta {
    height: 42px;
    padding: 0 22px;
    background: var(--green);
    color: var(--ink-deep);
    font-weight: 700;
    transition: background 0.25s ease, transform 0.25s ease;
}

.header-cta:hover {
    background: var(--green-bright);
    transform: translateY(-1px);
}

.burger {
    display: none;
    margin-left: auto;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 17px;
    align-items: center;
    justify-content: center;
}

/* Hero */
.hero {
    position: relative;
    min-height: 660px;
    background: var(--ink-deep);
    color: #fff;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-1.webp') no-repeat center center / cover;
    z-index: 0;
}

.hero-bg::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(14, 16, 13, 0.97) 12%, rgba(14, 16, 13, 0.83) 55%, rgba(14, 16, 13, 0.55));
}

.hero-bg::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green), transparent);
    opacity: 0.4;
}

.hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 20%, var(--lime) 50%, transparent 80%);
    opacity: 0.35;
    z-index: 2;
}

.hero-inner {
    position: relative;
    z-index: 2;
    padding: 112px 0 104px;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.75fr);
    gap: 68px;
    align-items: center;
    width: 100%;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--green);
    letter-spacing: 0.1em;
    margin-bottom: 20px;
    background: rgba(14, 207, 163, 0.1);
    border: 1px solid rgba(14, 207, 163, 0.28);
    border-radius: var(--radius-pill);
    padding: 8px 16px;
}

.hero-kicker::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--green);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(14, 207, 163, 0.2);
}

.hero h1 {
    font-size: clamp(34px, 5vw, 58px);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.16;
    text-wrap: balance;
    max-width: 11em;
}

.hero-lead {
    margin-top: 24px;
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.72);
    max-width: 35rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 36px;
}

.hero-note {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 28px;
    color: rgba(255, 255, 255, 0.35);
    font-size: 12px;
}

.hero-note i {
    color: var(--lime);
    font-size: 14px;
}

.hero-media {
    position: relative;
}

.hero-media .media-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    transform: rotate(0deg);
    box-shadow: var(--shadow-dark);
}

.hero-media .media-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(14, 16, 13, 0.5), transparent 55%);
}

.hero-media img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.hero-media-caption {
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 18px;
    z-index: 2;
    color: #fff;
}

.hero-media-caption strong {
    display: block;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.4;
}

.hero-media-caption span {
    display: block;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 4px;
}

.hero-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--lime);
    z-index: 3;
}

.hero-dot-1 {
    top: -18px;
    right: 40px;
    box-shadow: 0 0 0 6px rgba(216, 255, 115, 0.15);
}

.hero-dot-2 {
    bottom: 70px;
    left: -24px;
    background: var(--green);
    box-shadow: 0 0 0 6px rgba(14, 207, 163, 0.18);
    width: 8px;
    height: 8px;
}

/* 通用 section */
.section {
    padding: 96px 0;
}

.section-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(240px, 420px);
    gap: 40px;
    align-items: end;
    margin-bottom: 48px;
}

.kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--green);
    margin-bottom: 12px;
}

.kicker::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--green);
}

.section-head h2,
.block-title {
    font-size: clamp(26px, 3vw, 38px);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ink);
    line-height: 1.25;
    max-width: 12em;
}

.section-head .head-sub {
    color: var(--gray-deep);
    font-size: 15px;
    line-height: 1.8;
}

/* 指标看板 */
.metric-section {
    background: var(--cream);
    padding: 84px 0;
}

.metric-section .section-head h2 {
    font-size: clamp(28px, 2.4vw, 42px);
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.metric-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 30px 28px;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s ease;
}

.metric-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(14, 207, 163, 0.2);
}

.metric-card .metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    background: rgba(14, 207, 163, 0.12);
    color: var(--ink-deep);
    margin-bottom: 22px;
}

.metric-card .metric-num {
    display: flex;
    align-items: baseline;
    font-family: var(--mono);
    font-size: 34px;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.metric-card .metric-num span {
    color: var(--green);
    margin-right: 2px;
}

.metric-card .metric-label {
    margin-top: 10px;
    font-size: 14px;
    color: var(--gray-deep);
    line-height: 1.5;
}

/* 服务矩阵 */
.service-section {
    background: #fff;
    padding: 100px 0;
}

.service-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 24px;
    margin-top: 16px;
}

.feature-main {
    background: var(--ink-deep);
    color: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.04);
    min-height: 520px;
    position: relative;
    box-shadow: var(--shadow-dark);
}

.feature-main img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.38;
    transition: transform 0.8s var(--ease), opacity 0.5s ease;
}

.feature-main:hover img {
    transform: scale(1.04);
    opacity: 0.3;
}

.feature-main::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(14, 16, 13, 0.1) 0%, rgba(14, 16, 13, 0.55) 70%, rgba(14, 16, 13, 0.96) 100%);
    z-index: 1;
}

.feature-main .feature-content {
    position: relative;
    z-index: 2;
    align-self: flex-end;
    padding: 38px;
    width: 100%;
}

.feature-main .feature-tag {
    display: inline-flex;
    background: var(--green);
    color: var(--ink-deep);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    margin-bottom: 16px;
    letter-spacing: 0.04em;
}

.feature-main h3 {
    font-size: 27px;
    letter-spacing: -0.01em;
    line-height: 1.3;
    max-width: 15em;
}

.feature-main p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.74);
    margin-top: 14px;
    line-height: 1.85;
    max-width: 40em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.feature-arrow {
    margin-top: 22px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: gap 0.25s var(--ease), color 0.2s ease;
}

.feature-arrow i {
    font-size: 12px;
    color: var(--green);
}

.feature-arrow:hover {
    color: var(--green-bright);
    gap: 12px;
}

.service-sub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: minmax(150px, 1fr);
    gap: 16px;
}

.sub-card {
    background: var(--cream);
    border: 1px solid rgba(20, 22, 16, 0.06);
    border-radius: var(--radius-md);
    padding: 26px 24px 24px;
    display: flex;
    flex-direction: column;
    transition: background 0.3s ease, transform 0.3s var(--ease), border-color 0.25s ease;
}

.sub-card:hover {
    background: #fff;
    transform: translateY(-3px);
    box-shadow: var(--shadow-card);
    border-color: rgba(14, 207, 163, 0.22);
}

.sub-card .sub-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(14, 207, 163, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    color: var(--ink-deep);
    transition: background 0.25s ease, color 0.25s ease;
}

.sub-card:hover .sub-icon {
    background: var(--green);
}

.sub-card h3 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-top: 14px;
}

.sub-card p {
    font-size: 13px;
    color: var(--gray-deep);
    margin-top: 6px;
    line-height: 1.7;
    flex: 1;
}

.sub-card .sub-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    opacity: 0.65;
}

.sub-card .sub-link i {
    transition: transform 0.2s var(--ease);
}

.sub-card:hover .sub-link {
    opacity: 1;
}

.sub-card:hover .sub-link i {
    transform: translateX(4px);
}

/* 对比 / 差异 */
.compare-section {
    background: var(--ink-deep);
    color: #fff;
    padding: 100px 0;
}

.compare-section .section-head h2 {
    color: #fff;
}

.compare-section .head-sub {
    color: rgba(255, 255, 255, 0.55);
}

.compare-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
}

.compare-pane {
    border-radius: var(--radius-lg);
    padding: 34px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
}

.compare-pane.good {
    background: rgba(14, 207, 163, 0.06);
    border-color: rgba(14, 207, 163, 0.2);
}

.compare-pane.bad {
    background: rgba(255, 255, 255, 0.025);
    border-color: rgba(255, 255, 255, 0.07);
}

.compare-pane-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 26px;
    letter-spacing: 0.02em;
}

.compare-pane.good .compare-pane-title {
    color: var(--green-bright);
}

.compare-pane.bad .compare-pane-title {
    color: #a6aaa2;
}

.compare-type-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    background: rgba(255, 255, 255, 0.1);
}

.compare-pane.good .compare-type-icon {
    background: var(--green);
    color: var(--ink-deep);
}

.compare-list li {
    display: flex;
    gap: 12px;
    padding: 11px 0;
    font-size: 14px;
    line-height: 1.65;
    align-items: flex-start;
}

.compare-pane.good .compare-list li {
    color: rgba(255, 255, 255, 0.82);
}

.compare-pane.bad .compare-list li {
    color: rgba(255, 255, 255, 0.4);
}

.compare-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    flex-shrink: 0;
    margin-top: 5px;
}

.compare-pane.good .compare-icon {
    background: rgba(14, 207, 163, 0.19);
    color: var(--green);
}

.compare-pane.bad .compare-icon {
    background: rgba(255, 255, 255, 0.07);
    color: rgba(255, 255, 255, 0.4);
}

/* 资讯 */
.news-section {
    background: var(--cream);
    padding: 100px 0;
}

.news-list {
    display: grid;
    gap: 18px;
}

.news-item {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.25s ease;
    box-shadow: var(--shadow-card);
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
    border-color: rgba(14, 207, 163, 0.18);
}

.news-thumb {
    position: relative;
    overflow: hidden;
}

.news-thumb img {
    width: 100%;
    height: 100%;
    min-height: 170px;
    object-fit: cover;
    transition: transform 0.5s var(--ease);
}

.news-item:hover .news-thumb img {
    transform: scale(1.04);
}

.news-body {
    padding: 24px 30px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge {
    display: inline-flex;
    align-items: center;
    background: rgba(14, 207, 163, 0.12);
    color: #0b7f65;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.04em;
    margin-bottom: 12px;
}

.news-body h3 {
    font-size: 17px;
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 8px;
}

.news-body h3 a {
    transition: color 0.2s ease;
}

.news-body h3 a:hover {
    color: #0b7f65;
}

.news-body > p {
    font-size: 14px;
    color: var(--gray-deep);
    line-height: 1.75;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}

.news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    margin-top: auto;
    padding-top: 4px;
    font-size: 13px;
    color: var(--gray);
}

.read-more {
    color: var(--ink);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.read-more i {
    color: var(--green);
    font-size: 12px;
}

.read-more:hover {
    color: #0b7f65;
}

.empty-state {
    background: #fff;
    border: 1px dashed rgba(20, 22, 16, 0.14);
    border-radius: var(--radius-lg);
    padding: 60px 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--gray-deep);
}

.empty-state i {
    font-size: 26px;
    color: var(--green);
    margin-bottom: 14px;
}

.empty-state p {
    font-size: 14px;
}

/* FAQ */
.faq-section {
    background: #fff;
    padding: 100px 0;
}

.accordion {
    max-width: 860px;
    margin: 0 auto;
    background: transparent;
    border: none;
}

.accordion .accordion-item {
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--line);
    list-style: none;
}

.accordion .accordion-title {
    background: transparent;
    border: none;
    color: var(--ink);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    padding: 22px 48px 22px 0;
    position: relative;
    transition: color 0.2s ease;
}

.accordion .accordion-title:hover,
.accordion .accordion-title:focus {
    background: transparent;
    color: #0b7f65;
}

.accordion .accordion-title::before {
    content: "\f067";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--cream);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--ink);
    border: 1px solid var(--line);
    transition: transform 0.3s var(--ease), background 0.25s ease, color 0.25s ease;
}

.accordion .accordion-item.is-active > .accordion-title::before {
    content: "\f068";
    background: var(--green);
    color: var(--ink-deep);
    transform: translateY(-50%) rotate(180deg);
}

.accordion .accordion-content {
    border: none;
    background: transparent;
    color: var(--gray-deep);
    font-size: 15px;
    line-height: 1.9;
    padding: 0 48px 24px 0;
}

.accordion .accordion-content p {
    color: var(--gray-deep);
}

.accordion .accordion-content > p:last-child {
    margin-bottom: 0;
}

/* CTA */
.cta-section {
    padding: 0 0 96px;
    background: #fff;
}

.cta-panel {
    background: linear-gradient(135deg, #0e100d, #182019);
    border-radius: var(--radius-lg);
    padding: 60px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta-panel::before {
    content: "";
    position: absolute;
    width: 360px;
    height: 360px;
    right: -100px;
    top: -180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(14, 207, 163, 0.14), transparent 68%);
}

.cta-panel::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    left: 42%;
    bottom: -160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(216, 255, 115, 0.08), transparent 68%);
}

.cta-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.cta-copy h2 {
    font-size: clamp(24px, 2.6vw, 36px);
    line-height: 1.35;
    letter-spacing: -0.01em;
}

.cta-copy p {
    margin-top: 14px;
    color: rgba(255, 255, 255, 0.62);
    font-size: 14px;
    line-height: 1.8;
}

.cta-form {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 28px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    height: 46px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    color: #fff;
    padding: 0 15px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.form-group textarea {
    height: 80px;
    padding: 12px 15px;
    resize: vertical;
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='none' stroke='%23ffffff' stroke-width='1.4' d='M1 3l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
}

.form-group select option {
    color: var(--ink);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: rgba(14, 207, 163, 0.6);
    background: rgba(255, 255, 255, 0.08);
    outline: none;
}

.cta-submit {
    width: 100%;
    height: 46px;
    background: var(--green);
    color: var(--ink-deep);
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    border: none;
    cursor: pointer;
    margin-top: 14px;
    transition: background 0.25s ease, transform 0.25s ease;
}

.cta-submit:hover {
    background: var(--green-bright);
    transform: translateY(-1px);
}

.form-privacy {
    width: 100%;
    text-align: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.34);
    margin-top: 12px;
    line-height: 1.6;
}

/* Footer */
.site-footer {
    background: #0a0b09;
    color: #cfd4cd;
    padding: 74px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.7fr 1.1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-brand .brand {
    color: #fff;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 13px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.55);
    max-width: 38em;
    margin-top: 16px;
}

.footer-title {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    letter-spacing: 0.06em;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.58);
    transition: color 0.22s ease, padding-left 0.22s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a::before {
    content: "";
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--green);
    opacity: 0.5;
    transition: opacity 0.2s ease;
}

.footer-links a:hover {
    color: var(--green-bright);
    padding-left: 4px;
}

.footer-note {
    font-size: 13px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.48);
}

.footer-note strong {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.32);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a:hover {
    color: var(--green);
}

/* mobile nav */
.mobile-menu {
    display: none;
    background: var(--ink-deep);
    padding: 12px 24px 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu a {
    display: block;
    padding: 14px 8px;
    color: rgba(255, 255, 255, 0.75);
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mobile-menu a.is-active {
    color: var(--green);
    font-weight: 700;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu .btn {
    margin-top: 14px;
}

@media (max-width: 1160px) {
    .brand-name {
        font-size: 16px;
    }
    .nav-list a {
        padding: 0 10px;
        font-size: 14px;
    }
    .nav-search input {
        width: 130px;
    }
    .nav-search input:focus {
        width: 180px;
    }
    .header-login {
        display: none;
    }
}

@media (max-width: 1024px) {
    .brand small {
        display: none;
    }
    .main-nav {
        justify-content: flex-end;
    }
    .section {
        padding: 78px 0;
    }
    .service-section,
    .news-section,
    .faq-section,
    .compare-section {
        padding: 80px 0;
    }
    .metric-card {
        padding: 24px 20px;
    }
    .metric-card .metric-num {
        font-size: 28px;
    }
    .sub-card {
        padding: 20px 18px;
    }
    .cta-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 50px;
        padding: 84px 0 70px;
    }
    .hero-media {
        max-width: 600px;
    }
}

@media (max-width: 900px) {
    .header-inner {
        height: 68px;
        gap: 12px;
    }
    .main-nav,
    .nav-tools {
        display: none;
    }
    .burger {
        display: flex;
        margin-left: auto;
    }
    .mobile-menu.is-open {
        display: block;
    }
    .header-cta {
        display: inline-flex;
        margin-left: auto;
    }
    .section-head {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 36px;
    }
    .section-head h2 {
        max-width: 100%;
    }
    .service-grid {
        grid-template-columns: 1fr;
    }
    .compare-wrap {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .header-inner {
        padding: 0 18px;
    }
    .brand-mark {
        width: 34px;
        height: 34px;
        font-size: 18px;
    }
    .brand-name {
        font-size: 15px;
    }
    .header-cta {
        display: none;
    }
    .wrap {
        padding: 0 18px;
    }
    .section {
        padding: 56px 0;
    }
    .service-section,
    .news-section,
    .faq-section,
    .compare-section {
        padding: 60px 0;
    }
    .hero-inner {
        padding: 60px 0 52px;
    }
    .hero h1 {
        font-size: 31px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .hero-media img {
        height: 260px;
    }
    .hero-media-caption strong {
        font-size: 13px;
    }
    .metric-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .metric-card {
        padding: 20px 16px;
    }
    .metric-card .metric-icon {
        margin-bottom: 14px;
    }
    .metric-card .metric-num {
        font-size: 24px;
    }
    .metric-card .metric-label {
        font-size: 12px;
    }
    .metric-section {
        padding: 60px 0;
    }
    .service-sub-grid {
        grid-template-columns: 1fr;
    }
    .feature-main .feature-content {
        padding: 26px;
    }
    .feature-main h3 {
        font-size: 22px;
    }
    .btn {
        width: 100%;
    }
    .compare-pane {
        padding: 24px 20px;
    }
    .news-item {
        grid-template-columns: 1fr;
    }
    .news-thumb img {
        height: 190px;
    }
    .news-body {
        padding: 20px 22px;
    }
    .news-body > p, .news-body .news-meta {
        margin-bottom: 0;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    .accordion .accordion-title {
        font-size: 15px;
        padding-right: 40px;
    }
    .accordion .accordion-content {
        padding-right: 0;
    }
    .cta-section {
        padding-bottom: 60px;
    }
    .cta-panel {
        padding: 28px 22px;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 641px) and (max-width: 1024px) {
    .btn {
        width: auto;
    }
}

:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 3px;
    border-radius: 4px;
}

/* roulang page: category1 */
:root {
    --bg-dark: #0E100D;
    --bg-dark-soft: #151812;
    --panel-dark: #181C15;
    --line-dark: rgba(255, 255, 255, 0.1);
    --primary: #0ECFA3;
    --primary-bright: #53E3C1;
    --accent: #D8FF73;
    --paper: #F4F1E8;
    --paper-deep: #E9E4D7;
    --text-light: #EDEFE9;
    --text-muted-dark: #A7AC9F;
    --text-ink: #20241D;
    --radius-lg: 14px;
    --radius-md: 8px;
    --radius-full: 999px;
    --space-section: 112px;
    --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.18);
    --shadow-paper: 0 14px 36px rgba(26, 28, 20, 0.08);
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

*,
*:before,
*:after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    line-height: 1.8;
    background: var(--bg-dark);
    color: var(--text-light);
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease, background .25s ease, border-color .25s ease, transform .25s ease;
}

ul,
ol,
p,
figure,
h1,
h2,
h3,
h4 {
    margin: 0;
}

input,
button {
    font: inherit;
    border: none;
    background: none;
}

button {
    cursor: pointer;
    color: inherit;
}

::selection {
    background: rgba(14, 207, 163, 0.28);
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

.wrap {
    max-width: 1200px;
    margin-inline: auto;
    padding-inline: 24px;
}

section {
    scroll-margin-top: 90px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(14, 16, 13, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.site-header.is-scrolled {
    border-bottom-color: rgba(255, 255, 255, 0.13);
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 18px;
    min-height: 74px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    background: var(--primary);
    color: #0b0d0a;
    display: grid;
    place-items: center;
    font-size: 24px;
    font-weight: 800;
    line-height: 1;
    font-family: Georgia, "Times New Roman", serif;
}

.brand-name {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name strong {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.brand-name small {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--text-muted-dark);
    margin-top: 3px;
}

.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-list {
    display: flex;
    gap: 2px;
    flex-wrap: nowrap;
}

.nav-list a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 14px;
    border-radius: var(--radius-full);
    font-size: 14.5px;
    font-weight: 500;
    color: rgba(237, 239, 233, 0.72);
    white-space: nowrap;
}

.nav-list a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.07);
}

.nav-list a.is-active {
    background: var(--primary);
    color: #0b0d0a;
    font-weight: 600;
}

.header-tools {
    display: flex;
    align-items: center;
    gap: 10px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 40px;
    padding: 0 14px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    transition: border-color .25s ease, background .25s ease, width .3s ease;
}

.search-box svg {
    width: 15px;
    height: 15px;
    stroke: rgba(237, 239, 233, 0.66);
    flex: 0 0 auto;
}

.search-box input {
    background: transparent;
    border: none;
    outline: 0;
    width: 118px;
    color: var(--text-light);
    font-size: 13px;
    transition: width .3s ease;
}

.search-box input::placeholder {
    color: rgba(237, 239, 233, 0.48);
}

.search-box:focus-within {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.11);
}

.search-box:focus-within input {
    width: 170px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    transition: all .25s ease;
}

.btn-primary {
    background: var(--primary);
    color: #0b0d0a;
}

.btn-primary:hover {
    background: var(--primary-bright);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.24);
    color: rgba(237, 239, 233, 0.9);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.4);
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    margin-left: auto;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: #fff;
    position: relative;
    transition: background .2s;
}

.nav-toggle span:before,
.nav-toggle span:after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: #fff;
    transition: transform .3s, top .3s;
}

.nav-toggle span:before {
    top: -6px;
}

.nav-toggle span:after {
    top: 6px;
}

.site-header.nav-open .nav-toggle span {
    background: transparent;
}

.site-header.nav-open .nav-toggle span:before {
    top: 0;
    transform: rotate(45deg);
}

.site-header.nav-open .nav-toggle span:after {
    top: 0;
    transform: rotate(-45deg);
}

.page-hero {
    position: relative;
    padding: 88px 0 96px;
    background: linear-gradient(100deg, rgba(13, 15, 11, 0.98) 30%, rgba(18, 21, 16, 0.88) 68%, rgba(28, 33, 23, 0.78)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 180px;
    height: 1px;
    background: var(--accent);
}

.crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(237, 239, 233, 0.55);
    margin-bottom: 28px;
}

.crumb a {
    color: rgba(237, 239, 233, 0.78);
}

.crumb a:hover {
    color: var(--primary);
}

.crumb span {
    color: rgba(237, 239, 233, 0.36);
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: 0.1em;
    color: var(--primary);
    margin-bottom: 18px;
}

.hero-kicker i {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
}

.page-hero h1 {
    font-size: clamp(38px, 6vw, 66px);
    line-height: 1.12;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: 22px;
}

.hero-lead {
    max-width: 600px;
    font-size: 17px;
    line-height: 1.9;
    color: rgba(237, 239, 233, 0.72);
}

.hero-lead strong {
    color: #ffffff;
    font-weight: 600;
}

.hero-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
}

.hero-figure {
    position: relative;
}

.hero-figure img {
    width: 100%;
    border-radius: var(--radius-lg);
    object-fit: cover;
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-dark);
}

.hero-figure .hero-img-tag {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(14, 16, 13, 0.78);
    backdrop-filter: blur(8px);
    padding: 7px 13px;
    border-radius: var(--radius-full);
    font-size: 12px;
    color: var(--primary);
    border: 1px solid rgba(255, 255, 255, 0.12);
    letter-spacing: 0.03em;
}

.section-tag {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    text-transform: none;
}

.section-tag::before {
    content: "";
    width: 20px;
    height: 2px;
    background: var(--primary);
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 44px;
}

.section-head h2 {
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.22;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-ink);
}

.section-head .section-note {
    max-width: 440px;
    font-size: 15px;
    color: rgba(32, 36, 29, 0.68);
    line-height: 1.85;
}

.guide-directory {
    background: var(--paper);
    color: var(--text-ink);
    padding: var(--space-section) 0;
}

.guide-card {
    background: #FBF9F2;
    border: 1px solid rgba(32, 36, 29, 0.07);
    border-radius: var(--radius-lg);
    padding: 14px 14px 14px 0;
    box-shadow: var(--shadow-paper);
    overflow: hidden;
    margin-bottom: 26px;
}

.guide-card .grid-x {
    height: 100%;
}

.guide-figure {
    display: block;
    height: 100%;
    min-height: 240px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.guide-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-card-content {
    padding: 28px 20px 24px 10px;
}

.guide-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #0b0d0a;
    font-weight: 800;
    font-size: 17px;
    margin-bottom: 16px;
}

.guide-card-content h3 {
    font-size: 23px;
    font-weight: 800;
    color: var(--text-ink);
    line-height: 1.3;
    margin-bottom: 10px;
}

.guide-card-content > p {
    font-size: 15px;
    color: rgba(32, 36, 29, 0.68);
    line-height: 1.85;
    max-width: 560px;
}

.check-list {
    list-style: none;
    margin: 18px 0 20px;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px 16px;
}

.check-list li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(32, 36, 29, 0.84);
}

.check-list svg {
    width: 17px;
    height: 17px;
    color: var(--primary);
    flex: 0 0 auto;
    margin-top: 3px;
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-ink);
}

.text-link::after {
    content: "→";
    transition: transform .25s ease;
}

.text-link:hover::after {
    transform: translateX(6px);
}

.text-link:hover {
    color: #08785f;
}

.features-dark {
    background: var(--bg-dark-soft);
    color: var(--text-light);
    padding: var(--space-section) 0;
}

.features-dark .section-tag {
    color: var(--accent);
}

.features-dark .section-head h2 {
    color: #ffffff;
}

.features-dark .section-head .section-note {
    color: rgba(237, 239, 233, 0.62);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
}

.feature-item {
    background: var(--panel-dark);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    padding: 26px 22px;
    position: relative;
    min-height: 176px;
    transition: transform .25s ease, border-color .25s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    border-color: rgba(14, 207, 163, 0.5);
}

.feature-num {
    display: block;
    font-family: Georgia, serif;
    font-size: 14px;
    color: var(--accent);
    letter-spacing: 0.03em;
    margin-bottom: 18px;
}

.feature-item h3 {
    font-size: 17px;
    color: #ffffff;
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 13.5px;
    line-height: 1.8;
    color: rgba(237, 239, 233, 0.6);
}

.feature-line {
    position: absolute;
    left: 22px;
    bottom: 0;
    width: 28px;
    height: 1px;
    background: var(--primary);
    opacity: 0;
    transition: opacity .25s ease, width .25s ease;
}

.feature-item:hover .feature-line {
    opacity: 1;
    width: 48px;
}

.faq-panel {
    background: var(--paper);
    color: var(--text-ink);
    padding: var(--space-section) 0;
}

.faq-layout {
    display: grid;
    grid-template-columns: 0.85fr 1.5fr;
    gap: 60px;
}

.faq-intro h2 {
    font-size: clamp(28px, 4vw, 40px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-ink);
    margin-bottom: 18px;
}

.faq-intro p {
    color: rgba(32, 36, 29, 0.66);
    line-height: 1.9;
    font-size: 15px;
}

.faq-accordion {
    margin: 0;
    background: transparent;
}

.faq-accordion .accordion-item {
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(32, 36, 29, 0.16);
}

.faq-accordion .accordion-item:first-child {
    border-top: 1px solid rgba(32, 36, 29, 0.16);
}

.faq-accordion .accordion-title {
    background: transparent !important;
    color: var(--text-ink) !important;
    padding: 24px 42px 24px 0 !important;
    font-size: 16.5px;
    font-weight: 700;
    line-height: 1.5;
    position: relative;
    display: block;
    min-height: 64px;
    transition: color .2s ease;
}

.faq-accordion .accordion-title:hover {
    color: #08785f;
}

.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after {
    content: "";
    position: absolute;
    right: 10px;
    top: 31px;
    width: 18px;
    height: 2px;
    background: var(--text-ink);
    transition: transform .3s ease, background .25s ease;
}

.faq-accordion .accordion-title::after {
    transform: rotate(90deg);
}

.faq-accordion .accordion-item.is-active > .accordion-title::before {
    background: #08785f;
}

.faq-accordion .accordion-item.is-active > .accordion-title::after {
    background: #08785f;
    transform: rotate(0deg);
}

.faq-accordion .accordion-content {
    background: transparent !important;
    border-bottom: none !important;
    padding: 0 42px 24px 0 !important;
    color: rgba(32, 36, 29, 0.72);
    line-height: 1.88;
    font-size: 15px;
}

.cta-band {
    background: var(--bg-dark);
    padding: 84px 0;
}

.cta-inner {
    position: relative;
    background: linear-gradient(98deg, #181d15 0%, #141810 100%);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: var(--radius-lg);
    padding: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    overflow: hidden;
}

.cta-inner::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: var(--primary);
}

.cta-copy h2 {
    font-size: 30px;
    line-height: 1.25;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 10px;
}

.cta-copy p {
    font-size: 15px;
    line-height: 1.85;
    color: rgba(237, 239, 233, 0.66);
    max-width: 580px;
}

.cta-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    flex: 0 0 auto;
}

.site-footer {
    background: #0b0d0a;
    padding: 72px 0 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 0.9fr 1.2fr;
    gap: 64px;
}

.site-footer .brand {
    margin-bottom: 18px;
}

.site-footer .brand-name strong {
    color: #fff;
}

.site-footer .brand-name small {
    color: rgba(237, 239, 233, 0.42);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.9;
    color: rgba(237, 239, 233, 0.55);
    max-width: 380px;
}

.footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 18px;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(237, 239, 233, 0.58);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-note {
    font-size: 13.5px;
    line-height: 1.9;
    color: rgba(237, 239, 233, 0.52);
}

.footer-note strong {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 15px;
}

.footer-bottom {
    margin-top: 58px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.09);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    font-size: 12.5px;
    color: rgba(237, 239, 233, 0.38);
}

@media (max-width: 1023.98px) {
    .header-inner {
        flex-wrap: wrap;
    }

    .main-nav {
        display: none;
        order: 3;
        width: 100%;
        padding: 12px 0 18px;
        background: rgba(14, 16, 13, 0.98);
    }

    .nav-list {
        flex-direction: column;
        gap: 2px;
    }

    .nav-list a {
        padding: 12px 16px;
        font-size: 16px;
        border-radius: 12px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .site-header.nav-open .main-nav {
        display: flex;
    }

    .header-tools {
        margin-left: auto;
    }

    .search-box {
        display: none;
    }

    .btn-ghost {
        display: inline-flex;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
        padding: 42px;
    }
}

@media (max-width: 767.98px) {
    :root {
        --space-section: 78px;
    }

    .btn-ghost {
        display: none;
    }

    .hero-figure {
        margin-top: 30px;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .check-list {
        grid-template-columns: 1fr;
    }

    .guide-card {
        padding: 12px;
    }

    .guide-card-content {
        padding: 24px 10px 18px;
    }

    .guide-card--swap .guide-figure {
        order: 1;
    }

    .guide-card--swap .guide-card-content {
        order: 2;
    }

    .guide-figure {
        min-height: 210px;
    }

    .feature-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .feature-item {
        padding: 20px 16px;
    }

    .feature-item h3 {
        font-size: 15px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 38px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .cta-inner {
        padding: 34px 26px;
    }

    .cta-copy h2 {
        font-size: 24px;
    }
}

@media (max-width: 520px) {
    .wrap {
        padding-inline: 18px;
    }

    .page-hero {
        padding: 64px 0 72px;
    }

    .page-hero h1 {
        font-size: 36px;
    }

    .hero-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .guide-figure {
        min-height: 180px;
    }

    .guide-card-content h3 {
        font-size: 20px;
    }

    .cta-actions {
        align-items: stretch;
        flex-direction: column;
        width: 100%;
    }

    .cta-actions .btn {
        width: 100%;
    }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --bg-dark: #0E100D;
            --bg-dark-2: #141610;
            --bg-light: #F4F1E8;
            --bg-surface: #FFFCF6;
            --primary: #0ECFA3;
            --primary-bright: #3DE0BC;
            --primary-deep: #0A8A6E;
            --accent: #D8FF73;
            --white: #F5F7F2;
            --text-light: #E9EDE7;
            --muted-dark: #5D625C;
            --muted-light: #A6B0A8;
            --line-dark: rgba(255,255,255,.09);
            --line-light: #E4DFD2;
            --shadow-dark: 0 24px 50px rgba(0,0,0,.20);
            --shadow-light: 0 16px 40px rgba(30,34,30,.07);
            --radius-lg: 14px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
            --container: 1240px;
            --ease: .3s cubic-bezier(.22,.61,.36,1);
        }

        /* ===== 基础 ===== */
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            margin: 0;
            background: var(--bg-dark);
            color: var(--white);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            padding-top: 76px;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .3s ease, top .3s ease; }
        ul, ol { padding: 0; margin: 0; list-style: none; }
        button, input, select, textarea { font-family: inherit; }
        button { cursor: pointer; }
        h1, h2, h3, h4, h5, h6 { margin: 0; color: inherit; line-height: 1.25; }
        p { margin-top: 0; }
        ::selection { background: var(--primary); color: #07100C; }

        .grid-container {
            max-width: var(--container);
            padding-left: 28px;
            padding-right: 28px;
        }
        a:focus-visible, button:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 120;
            background: rgba(14,16,13,.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid transparent;
            transition: background .35s ease, border-color .35s ease, box-shadow .35s ease;
        }
        .site-header.scrolled {
            background: rgba(11,13,10,.96);
            border-bottom-color: var(--line-dark);
            box-shadow: 0 10px 30px rgba(0,0,0,.26);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 76px;
            position: relative;
        }
        .brand-cell {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            background: var(--primary);
            color: #08120E;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 23px;
            font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
            line-height: 1;
            letter-spacing: -0.04em;
            transform: rotate(-3deg);
            box-shadow: 0 6px 16px rgba(14,207,163,.24);
            transition: transform .3s ease;
            position: relative;
        }
        .brand-mark::after {
            content: "";
            position: absolute;
            right: -3px;
            top: -3px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--accent);
        }
        .brand:hover .brand-mark { transform: rotate(0) translateY(-1px); }
        .brand-name strong {
            display: block;
            font-size: 17px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: .01em;
            color: #F7FAF6;
        }
        .brand-name small {
            display: block;
            font-size: 9px;
            line-height: 1.3;
            letter-spacing: .18em;
            color: #849087;
            text-transform: uppercase;
            margin-top: 3px;
        }
        .nav-cell {
            flex: 1;
            display: flex;
            justify-content: center;
            min-width: 0;
        }
        .main-nav .nav-list {
            display: flex;
            align-items: center;
            flex-wrap: nowrap;
            gap: 4px;
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 42px;
            padding: 0 15px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: #C0C9C1;
            white-space: nowrap;
            transition: background .25s ease, color .25s ease;
            position: relative;
        }
        .nav-list a:hover {
            color: var(--primary);
            background: rgba(14,207,163,.08);
        }
        .nav-list a.is-active {
            background: var(--primary);
            color: #07100C;
            font-weight: 700;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            width: 190px;
            height: 42px;
            border: 1px solid rgba(255,255,255,.15);
            border-radius: var(--radius-pill);
            background: rgba(255,255,255,.05);
            padding: 0 5px 0 15px;
            transition: border-color .25s ease, box-shadow .25s ease, width .3s ease, background .3s ease;
            overflow: hidden;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            background: rgba(14,207,163,.05);
            box-shadow: 0 0 0 4px rgba(14,207,163,.1);
            width: 224px;
        }
        .search-box input {
            flex: 1;
            min-width: 0;
            height: 100%;
            background: transparent;
            border: none;
            color: var(--white);
            font-size: 13px;
            outline: none;
        }
        .search-box input::placeholder { color: #78837A; }
        .search-box button {
            width: 34px;
            height: 34px;
            flex: none;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #A1ABA2;
            border: none;
            border-radius: 50%;
            transition: color .2s ease, background .2s ease;
        }
        .search-box button:hover { color: var(--primary); }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 0;
            width: 46px;
            height: 46px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border-radius: var(--radius-sm);
            transition: background .2s ease;
        }
        .nav-toggle:hover { background: rgba(255,255,255,.06); }
        .nav-toggle span {
            display: block;
            width: 21px;
            height: 2px;
            background: var(--white);
            border-radius: 3px;
            transition: transform .3s ease, opacity .3s ease;
        }
        .mobile-drawer {
            display: none;
            background: #0C0F0B;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            height: 42px;
            padding: 0 22px;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            font-size: 14px;
            font-weight: 700;
            line-height: 1;
            white-space: nowrap;
            transition: var(--ease);
            margin: 0;
            cursor: pointer;
            text-align: center;
            color: var(--white);
            background: transparent;
            vertical-align: middle;
        }
        .btn:active { transform: translateY(1px); }
        .btn-primary {
            background: var(--primary);
            color: #07100C;
            box-shadow: 0 8px 20px rgba(14,207,163,.16);
        }
        .btn-primary:hover {
            background: var(--primary-bright);
            color: #07100C;
            top: -2px;
            box-shadow: 0 14px 28px rgba(14,207,163,.28);
            transform: translateY(-2px);
        }
        .btn-secondary {
            border-color: rgba(255,255,255,.22);
            color: #E6EBE5;
            background: transparent;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(14,207,163,.08);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            border-color: #D7D0C1;
            color: #20231E;
        }
        .btn-outline-light:hover {
            border-color: var(--primary);
            background: rgba(14,207,163,.1);
            color: var(--primary-deep);
        }
        .btn-ghost-light {
            border-color: var(--line-light);
            color: #20231E;
        }
        .btn-ghost-light:hover {
            background: rgba(14,207,163,.08);
            border-color: var(--primary);
            color: var(--primary-deep);
        }

        /* ===== 页面正文上栏 ===== */
        .article-hero {
            position: relative;
            background:
                linear-gradient(120deg, rgba(10,12,9,.92) 10%, rgba(14,17,13,.86) 58%, rgba(18,22,17,.88) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            padding: 82px 0 66px;
            border-bottom: 1px solid var(--line-dark);
            overflow: hidden;
        }
        .article-hero::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: .42;
        }
        .article-hero::after {
            content: "";
            position: absolute;
            right: 6%;
            bottom: -70px;
            width: 240px;
            height: 240px;
            border: 1px solid rgba(216,255,115,.08);
            border-radius: 50%;
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            margin-bottom: 36px;
            font-size: 13px;
            color: #879289;
            position: relative;
            z-index: 2;
        }
        .breadcrumb a { color: #C7D0C8; }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb i { font-size: 10px; color: #667268; }
        .breadcrumb .current { color: #B4BFB6; }
        .article-title-wrap {
            max-width: 950px;
            position: relative;
            z-index: 2;
        }
        .article-cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 30px;
            padding: 0 14px;
            background: rgba(14,207,163,.11);
            border: 1px solid rgba(14,207,163,.34);
            color: var(--primary);
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
        }
        .article-cat-badge i {
            font-size: 10px;
            color: var(--accent);
        }
        .article-title-wrap h1 {
            font-size: clamp(34px, 6vw, 62px);
            font-weight: 800;
            line-height: 1.14;
            letter-spacing: -0.015em;
            color: #F6F8F3;
            margin: 22px 0 22px;
        }
        .article-sub-summary {
            max-width: 780px;
            font-size: 17px;
            line-height: 1.85;
            color: #B4BEB5;
            margin: 0;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 14px 24px;
            margin-top: 34px;
            color: #8C988E;
            font-size: 14px;
        }
        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .meta-item i { color: var(--primary); font-size: 12px; }
        .meta-divider {
            display: inline-block;
            width: 1px;
            height: 14px;
            background: rgba(255,255,255,.15);
        }

        /* ===== 阅读区（浅色） ===== */
        .article-read {
            background: var(--bg-light);
            padding: 96px 0 90px;
            color: var(--muted-dark);
            position: relative;
        }
        .article-rich {
            max-width: 760px;
            margin: 0 auto;
            font-size: 16.5px;
            line-height: 1.9;
            color: #30332D;
        }
        .article-rich > * + * { margin-top: 1.4em; }
        .article-rich h2 {
            font-size: clamp(24px, 3.4vw, 31px);
            font-weight: 800;
            color: #151914;
            line-height: 1.32;
            letter-spacing: -0.01em;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(58,64,54,.1);
            margin-top: 2.2em;
        }
        .article-rich h3 {
            font-size: 21px;
            font-weight: 800;
            color: #1C211A;
            line-height: 1.4;
            margin-top: 2em;
        }
        .article-rich h4 {
            font-size: 17px;
            font-weight: 700;
            color: #252A23;
            margin-top: 1.6em;
        }
        .article-rich p { color: #3B3F39; }
        .article-rich strong { font-weight: 700; color: #1E241C; }
        .article-rich a {
            color: var(--primary-deep);
            border-bottom: 1px solid rgba(10,138,110,.28);
        }
        .article-rich a:hover { color: #0A6652; border-bottom-color: var(--primary-deep); }
        .article-rich ul, .article-rich ol { margin: 1.6em 0; }
        .article-rich ul li {
            position: relative;
            padding-left: 28px;
            margin-bottom: 12px;
        }
        .article-rich ul li::before {
            content: "";
            position: absolute;
            left: 3px;
            top: .82em;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(14,207,163,.18);
        }
        .article-rich ol { counter-reset: article-list; }
        .article-rich ol li {
            position: relative;
            padding-left: 44px;
            margin-bottom: 14px;
            counter-increment: article-list;
        }
        .article-rich ol li::before {
            content: counter(article-list);
            position: absolute;
            left: 0;
            top: .18em;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: rgba(14,207,163,.14);
            border: 1px solid rgba(14,207,163,.28);
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }
        .article-rich blockquote {
            margin: 2em 0;
            padding: 22px 28px;
            background: #EAE6DA;
            border-left: 3px solid var(--primary);
            border-radius: 0 10px 10px 0;
            color: #4A4F47;
            line-height: 1.9;
        }
        .article-rich blockquote p { margin: 0; }
        .article-rich img {
            border-radius: 16px;
            box-shadow: var(--shadow-light);
            margin: 1.8em 0;
        }
        .article-rich img + em {
            display: block;
            text-align: center;
            font-size: 14px;
            color: #878D83;
            margin-top: -1.1em;
        }
        .article-rich hr {
            border: none;
            height: 1px;
            background: #DAD6CB;
            margin: 2.6em 0;
        }
        .article-rich code {
            background: #EEECE3;
            border: 1px solid #E2DED3;
            border-radius: 6px;
            padding: 2px 8px;
            font-size: .9em;
            color: #176854;
        }
        .article-rich table {
            width: 100%;
            border-collapse: collapse;
            margin: 2em 0;
            font-size: 15px;
        }
        .article-rich th {
            background: #ECEAE1;
            text-align: left;
            padding: 13px 15px;
            font-weight: 700;
            color: #333730;
            border: 1px solid #E2DED2;
        }
        .article-rich td {
            padding: 12px 15px;
            border: 1px solid #E4E0D4;
            background: #FAF8F2;
        }

        /* 无文章状态 */
        .notfound-wrap {
            max-width: 620px;
            margin: 0 auto;
            text-align: center;
        }
        .notfound-icon {
            width: 74px;
            height: 74px;
            margin: 0 auto 28px;
            border-radius: 24px;
            background: rgba(14,207,163,.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary-deep);
            border: 1px solid rgba(14,207,163,.2);
        }
        .notfound-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: #171B15;
            margin-bottom: 14px;
        }
        .notfound-wrap p {
            font-size: 17px;
            color: #70756C;
        }
        .notfound-actions {
            margin-top: 26px;
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* ===== 延伸阅读 ===== */
        .recommend-section {
            background: #0E100D;
            padding: 108px 0 116px;
            border-top: 1px solid var(--line-dark);
            position: relative;
        }
        .section-heading {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 18px;
            margin-bottom: 48px;
        }
        .section-heading h2 {
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .section-heading h2 span {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            letter-spacing: .12em;
            margin-bottom: 10px;
        }
        .section-heading .text-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: #ADB7AE;
            font-weight: 600;
            height: 44px;
        }
        .section-heading .text-link:hover { color: var(--primary); }
        .section-heading .text-link i { transition: transform .3s ease; }
        .section-heading .text-link:hover i { transform: translateX(4px); }

        .feed-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }
        .feed-card {
            background: #171A16;
            border: 1px solid var(--line-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
        }
        .feed-card:hover {
            border-color: rgba(14,207,163,.4);
            transform: translateY(-4px);
            box-shadow: 0 20px 36px rgba(0,0,0,.35);
        }
        .feed-card-top {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #1B1E19;
        }
        .feed-card-top img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .feed-card:hover .feed-card-top img { transform: scale(1.04); }
        .feed-card-top::after {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, transparent 52%, rgba(10,12,9,.55));
        }
        .feed-card-tag {
            position: absolute;
            left: 16px;
            top: 14px;
            z-index: 2;
            height: 26px;
            padding: 0 11px;
            background: rgba(10,12,9,.56);
            border: 1px solid rgba(255,255,255,.16);
            color: #E6F1E7;
            font-size: 12px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(8px);
        }
        .feed-card-tag i { color: var(--primary); font-size: 9px; }
        .feed-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            gap: 11px;
            flex: 1;
        }
        .feed-card-body h3 {
            font-size: 18px;
            line-height: 1.5;
            font-weight: 700;
            color: #F2F5EF;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .feed-card-body p {
            margin: 0;
            font-size: 14px;
            line-height: 1.72;
            color: #98A29A;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .feed-card-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-top: auto;
            padding-top: 4px;
        }
        .feed-card-foot time { font-size: 12px; color: #737D76; }
        .feed-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            height: 30px;
        }
        .feed-card-link i { transition: transform .3s ease; }
        .feed-card:hover .feed-card-link i { transform: translateX(5px); }

        /* 文章尾部返回 */
        .article-back-bar {
            border-top: 1px solid var(--line-dark);
            margin-top: 60px;
            padding-top: 30px;
            display: flex;
            justify-content: center;
        }

        /* ===== CTA 条 ===== */
        .close-cta {
            background: #141711;
            padding: 0;
            border-top: 1px solid var(--line-dark);
        }
        .close-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 44px 30px;
            border-radius: 20px;
            margin: 90px auto -42px;
            background: linear-gradient(120deg, rgba(14,207,163,.12), transparent), rgba(22,26,20,.98);
            border: 1px solid rgba(14,207,163,.2);
            box-shadow: var(--shadow-dark);
            max-width: var(--container);
        }
        .close-cta-left h2 {
            font-size: clamp(22px, 3.2vw, 30px);
            font-weight: 800;
            color: #F2F5EF;
        }
        .close-cta-left p {
            margin: 10px 0 0;
            color: #A5B0A7;
            font-size: 15px;
        }
        .close-cta-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0B0D0A;
            padding: 70px 0 40px;
            border-top: 1px solid rgba(255,255,255,.08);
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            top: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(14,207,163,.3), transparent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.15fr .75fr 1fr;
            gap: 60px 46px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255,255,255,.08);
        }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand p {
            color: #97A09A;
            font-size: 15px;
            line-height: 1.85;
            margin: 16px 0 0;
            max-width: 360px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 800;
            color: #EDF1EB;
            margin-bottom: 18px;
            letter-spacing: .02em;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: #AEB8B0;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a::before {
            content: "";
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
            opacity: .5;
            transition: opacity .2s ease, width .2s ease;
        }
        .footer-links a:hover { color: var(--primary); }
        .footer-links a:hover::before { opacity: 1; }
        .footer-note {
            background: rgba(255,255,255,.025);
            border: 1px solid rgba(255,255,255,.08);
            border-radius: var(--radius-lg);
            padding: 22px 22px;
            color: #A6B0A8;
            font-size: 14px;
            line-height: 1.8;
            height: auto;
        }
        .footer-note strong {
            display: block;
            color: #EAEEE8;
            font-size: 14px;
            margin-bottom: 8px;
            font-weight: 700;
        }
        .footer-note strong::before {
            content: "·";
            color: var(--accent);
            margin-right: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            color: #6F7A72;
            font-size: 13px;
        }
        .footer-bottom p { margin: 0; }
        .footer-bottom span { color: #8A958D; }

        /* ===== 演示性引导用辅助（与CMS无冲突） ===== */
        .inline-label span { color: var(--accent); }

        /* ===== Mobile ===== */
        @media (max-width: 1023px) {
            .main-nav, .header-actions { display: none; }
            .nav-toggle { display: flex; }
            .mobile-drawer {
                display: none;
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                background: #0D100C;
                border-bottom: 1px solid var(--line-dark);
                padding: 18px 28px 30px;
                box-shadow: 0 24px 40px rgba(0,0,0,.32);
            }
            .mobile-drawer .main-nav { display: block; }
            .mobile-drawer .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
                margin-bottom: 20px;
            }
            .mobile-drawer .nav-list a {
                justify-content: flex-start;
                width: 100%;
                height: 48px;
                padding: 0 14px;
                border-radius: 12px;
                font-size: 16px;
            }
            .mobile-drawer .header-actions {
                display: flex;
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .mobile-drawer .search-box {
                width: 100%;
                background: rgba(255,255,255,.08);
                margin-bottom: 4px;
            }
            .mobile-drawer .btn { width: 100%; }
            .site-header.mobile-open .mobile-drawer { display: block; }
            .site-header.mobile-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
            .site-header.mobile-open .nav-toggle span:nth-child(2) { opacity: 0; }
            .site-header.mobile-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
            .feed-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
            .close-cta-inner { flex-direction: column; padding: 34px 20px; margin-bottom: -52px; }
        }

        @media (max-width: 767px) {
            body { padding-top: 64px; }
            .header-inner { height: 64px; }
            .mobile-drawer { top: 64px; padding: 14px 18px 24px; }
            .brand-mark { width: 38px; height: 38px; font-size: 20px; border-radius: 11px; }
            .brand-name strong { font-size: 15px; }
            .brand-name small { font-size: 8px; }
            .article-hero { padding: 58px 0 48px; }
            .breadcrumb { margin-bottom: 24px; }
            .article-title-wrap h1 { font-size: 32px; margin: 18px 0 16px; }
            .article-sub-summary { font-size: 15.5px; line-height: 1.75; }
            .article-meta { gap: 12px 18px; margin-top: 24px; }
            .article-read { padding: 70px 0 62px; }
            .article-rich { font-size: 16px; }
            .article-rich blockquote { padding: 18px 18px; }
            .section-heading { margin-bottom: 28px; }
            .section-heading h2 { font-size: 28px; }
            .article-page .grid-container { padding-left: 20px; padding-right: 20px; }
            .footer-grid { grid-template-columns: 1fr; gap: 34px; padding-bottom: 30px; }
            .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
            .feed-grid { grid-template-columns: 1fr; }
            .close-cta-inner { border-radius: 16px; margin-bottom: -20px; }
            .close-cta-actions .btn { width: 100%; }
        }

        @media (max-width: 520px) {
            .grid-container { padding-left: 18px; padding-right: 18px; }
            .search-box { width: 100%; }
            .nav-list a { font-size: 15px; }
            .feed-card-body { padding: 18px 18px 20px; }
            .feed-card-tag { left: 12px; top: 12px; }
            .btn { height: 46px; }
            .article-rich ol li { padding-left: 38px; }
            .article-rich ul li { padding-left: 24px; }
        }

/* roulang page: category2 */
:root {
            --bg-dark: #0E100D;
            --bg-dark-2: #141610;
            --bg-deep: #090B09;
            --bg-light: #F4F1E8;
            --bg-card: #FFFDF8;
            --brand: #0ECFA3;
            --brand-bright: #35E3B7;
            --brand-deep: #0C8B70;
            --lime: #D8FF73;
            --white: #F9FBF7;
            --muted-light: #A7ACA3;
            --muted-dark: #70766E;
            --border-light: #E6E0D4;
            --border-dark: rgba(255, 255, 255, .09);
            --radius-lg: 14px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-soft: 0 14px 36px rgba(20, 18, 12, .05);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, .18);
            --ease: .25s cubic-bezier(.2, .7, .2, 1)
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-light);
            color: #1A1D18;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased
        }
        img {
            max-width: 100%;
            height: auto;
            display: block
        }
        a {
            color: inherit;
            text-decoration: none
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none
        }
        ul,
        ol {
            margin: 0
        }
        .wrap {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px
        }
        ::selection {
            background: var(--brand);
            color: #0E100D
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 24px;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 15px;
            line-height: 1.4;
            border: 1px solid transparent;
            background: transparent;
            transition: transform var(--ease), background var(--ease), border-color var(--ease), box-shadow var(--ease);
            cursor: pointer;
            white-space: nowrap
        }
        .btn i {
            font-size: 13px;
            transition: transform var(--ease)
        }
        .btn:hover {
            transform: translateY(-2px)
        }
        .btn-primary {
            background: var(--brand);
            color: #0D1F19;
            border-color: var(--brand)
        }
        .btn-primary:hover {
            background: var(--brand-bright);
            border-color: var(--brand-bright);
            box-shadow: 0 12px 24px rgba(14, 207, 163, .26)
        }
        .btn-primary:hover i {
            transform: translateX(4px)
        }
        .btn-outline-light {
            border-color: rgba(255, 255, 255, .4);
            color: #fff;
            background: transparent
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .09);
            border-color: rgba(255, 255, 255, .7)
        }
        .btn-outline-dark {
            border-color: rgba(20, 28, 24, .36);
            color: #1A1D18;
            background: transparent
        }
        .btn-outline-dark:hover {
            border-color: var(--brand-deep);
            color: var(--brand-deep);
            background: rgba(14, 207, 163, .07)
        }
        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            color: var(--brand-deep)
        }
        .eyebrow::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            flex: none
        }
        .is-dark .eyebrow {
            color: var(--brand)
        }
        .is-dark .two-col-note {
            color: var(--muted-light)
        }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            width: 100%;
            background: rgba(14, 16, 13, .88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            transition: border-color var(--ease), background var(--ease)
        }
        .header-inner {
            min-height: 74px;
            display: flex;
            align-items: center;
            gap: 18px
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex: none
        }
        .brand-mark {
            width: 40px;
            height: 40px;
            border-radius: 13px;
            background: var(--brand);
            color: #0E100D;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 23px;
            font-weight: 800;
            line-height: 1;
            transform: rotate(-6deg);
            box-shadow: 0 7px 18px rgba(14, 207, 163, .24)
        }
        .brand-name {
            display: block;
            line-height: 1.2
        }
        .brand-name strong {
            display: block;
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            letter-spacing: .02em;
            white-space: nowrap
        }
        .brand-name small {
            display: block;
            margin-top: 3px;
            font-size: 9px;
            letter-spacing: .3em;
            color: rgba(255, 255, 255, .55);
            font-weight: 500;
            white-space: nowrap
        }
        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
            margin-left: 12px
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none
        }
        .nav-list a {
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, .76);
            border-bottom: 2px solid transparent;
            transition: color var(--ease), border-color var(--ease)
        }
        .nav-list a:hover {
            color: #fff
        }
        .nav-list a.is-active {
            color: #fff;
            border-bottom-color: var(--brand)
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 10px;
            flex: none;
            margin-left: auto
        }
        .searchbox {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 178px;
            height: 40px;
            padding: 0 15px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .11);
            border-radius: var(--radius-pill);
            transition: border-color var(--ease), width var(--ease), background var(--ease)
        }
        .searchbox i {
            font-size: 13px;
            color: rgba(255, 255, 255, .5)
        }
        .searchbox:focus-within {
            border-color: var(--brand);
            background: rgba(255, 255, 255, .12);
            width: 210px
        }
        .searchbox input {
            width: 100%;
            border: 0;
            background: transparent;
            color: #fff;
            font-size: 14px
        }
        .searchbox input::placeholder {
            color: rgba(255, 255, 255, .42)
        }
        .header-btn {
            min-height: 40px;
            padding: 0 20px;
            font-size: 14px;
            border-radius: var(--radius-pill);
            background: var(--brand);
            color: #0D1F19;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1px solid var(--brand);
            transition: transform var(--ease), background var(--ease), border-color var(--ease)
        }
        .header-btn:hover {
            background: var(--brand-bright);
            border-color: var(--brand-bright);
            transform: translateY(-2px)
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 12px;
            background: rgba(255, 255, 255, .06);
            align-items: center;
            justify-content: center;
            gap: 4px;
            cursor: pointer;
            margin-left: auto;
            color: #fff
        }
        .nav-toggle i {
            font-size: 18px
        }
        @media(max-width:1180px) {
            .nav-list {
                gap: 20px
            }
            .searchbox {
                display: none
            }
            .main-nav {
                margin-left: 8px
            }
        }
        @media(max-width:1024px) {
            .header-inner {
                min-height: 68px;
                flex-wrap: wrap
            }
            .nav-toggle {
                display: inline-flex;
                order: 3
            }
            .header-tools {
                order: 2;
                margin-left: auto
            }
            .header-btn {
                padding: 0 16px;
                font-size: 13px;
                min-height: 40px
            }
            .searchbox {
                display: none
            }
            .main-nav {
                order: 4;
                flex-basis: 100%;
                display: none;
                margin: 0;
                padding: 6px 0 14px;
                border-top: 1px solid rgba(255, 255, 255, .06)
            }
            body.nav-open .main-nav {
                display: block
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 2px
            }
            .nav-list a {
                width: 100%;
                min-height: 48px;
                font-size: 16px;
                justify-content: space-between;
                border-bottom: 1px solid rgba(255, 255, 255, .05);
                border-left: 2px solid transparent;
                padding: 0 6px
            }
            .nav-list a.is-active {
                border-bottom-color: transparent;
                border-left-color: var(--brand);
                background: rgba(255, 255, 255, .04)
            }
        }
        @media(max-width:640px) {
            .header-tools {
                display: none
            }
            .brand-name strong {
                font-size: 14px
            }
            .brand-name small {
                letter-spacing: .18em
            }
            .brand-mark {
                width: 37px;
                height: 37px;
                font-size: 21px;
                border-radius: 12px
            }
        }

        /* Page hero */
        .page-hero {
            background: var(--bg-dark);
            color: #fff;
            overflow: hidden;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, .08)
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            pointer-events: none;
            opacity: .35;
            background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
            background-size: 56px 56px;
            mask-image: linear-gradient(to bottom, #000, rgba(0, 0, 0, 0.4));
            -webkit-mask-image: linear-gradient(to bottom, #000, rgba(0, 0, 0, .4))
        }
        .hero-crumb {
            position: relative;
            z-index: 2;
            padding: 22px 0 0
        }
        .crumb-list {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .54);
            list-style: none
        }
        .crumb-list a {
            color: rgba(255, 255, 255, .7);
            transition: color var(--ease)
        }
        .crumb-list a:hover {
            color: var(--brand)
        }
        .crumb-list li+li::before {
            content: "/";
            margin-right: 10px;
            color: rgba(255, 255, 255, .28)
        }
        .hero-grid {
            position: relative;
            z-index: 2;
            padding: 74px 0 86px
        }
        .hero-copy h1 {
            margin: 14px 0 18px;
            font-size: clamp(40px, 6vw, 68px);
            line-height: 1.12;
            letter-spacing: -.02em;
            font-weight: 800;
            color: #fff
        }
        .hero-copy .lead {
            margin: 0;
            max-width: 560px;
            font-size: 16px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .72)
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 28px
        }
        .hero-spec {
            margin-top: 38px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            color: rgba(255, 255, 255, .6);
            font-size: 13px
        }
        .hero-spec span {
            display: inline-flex;
            align-items: center;
            gap: 7px
        }
        .hero-spec i {
            color: var(--brand);
            font-size: 12px
        }
        .hero-art {
            position: relative
        }
        .hero-art img {
            width: 100%;
            min-height: 280px;
            object-fit: cover;
            border-radius: 20px;
            box-shadow: 0 32px 70px rgba(0, 0, 0, .32);
            border: 1px solid rgba(255, 255, 255, .08)
        }
        .hero-art-tag {
            position: absolute;
            left: 18px;
            bottom: 18px;
            background: rgba(14, 16, 13, .8);
            border: 1px solid rgba(255, 255, 255, .14);
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            color: #fff;
            backdrop-filter: blur(8px)
        }
        .hero-art-tag i {
            color: var(--brand);
            margin-right: 5px
        }
        @media(max-width:900px) {
            .hero-grid {
                padding: 44px 0 62px
            }
            .hero-copy {
                margin-bottom: 18px
            }
        }

        /* sections */
        .page-section {
            padding: 104px 0
        }
        .section-light {
            background: var(--bg-light)
        }
        .section-paper {
            background: #FCFAF4;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light)
        }
        .section-dark {
            background: var(--bg-dark);
            color: #fff
        }
        .sec-head {
            max-width: 720px;
            margin-bottom: 52px
        }
        .sec-head h2 {
            margin: 14px 0 12px;
            font-size: clamp(28px, 4vw, 44px);
            line-height: 1.18;
            letter-spacing: -.015em;
            font-weight: 800;
            color: #18201B
        }
        .sec-head p {
            margin: 0;
            color: var(--muted-dark);
            font-size: 16px;
            max-width: 620px
        }
        .section-dark .sec-head h2 {
            color: #fff
        }
        .section-dark .sec-head p {
            color: var(--muted-light)
        }
        @media(max-width:900px) {
            .page-section {
                padding: 72px 0
            }
            .sec-head {
                margin-bottom: 36px
            }
        }
        @media(max-width:640px) {
            .page-section {
                padding: 58px 0
            }
            .wrap {
                padding: 0 20px
            }
        }

        /* Guide cards */
        .guide-row .cell {
            display: flex;
            margin-bottom: 22px
        }
        .guide-card {
            display: flex;
            flex-direction: column;
            width: 100%;
            padding: 28px 24px;
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-soft);
            transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease)
        }
        .guide-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 18px 40px rgba(20, 18, 12, .08);
            border-color: rgba(14, 207, 163, .55)
        }
        .card-top {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 16px
        }
        .card-icon {
            width: 44px;
            height: 44px;
            flex: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(14, 207, 163, .1);
            color: var(--brand-deep);
            font-size: 18px;
            transition: color var(--ease), background var(--ease)
        }
        .guide-card:hover .card-icon {
            background: var(--brand);
            color: #0E100D
        }
        .card-top h3 {
            margin: 0;
            font-size: 18px;
            font-weight: 700;
            color: #1A2420;
            line-height: 1.3
        }
        .card-desc {
            margin: 0 0 20px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--muted-dark);
            flex: 1
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 4px;
            font-size: 13px;
            font-weight: 700;
            color: var(--brand-deep);
            line-height: 1
        }
        .card-link i {
            transition: transform var(--ease)
        }
        .guide-card:hover .card-link i {
            transform: translateX(4px)
        }
        .featured-card {
            padding: 0;
            overflow: hidden;
            color: #fff;
            min-height: 240px
        }
        .featured-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: .46;
            transition: opacity var(--ease)
        }
        .featured-card:hover .featured-bg {
            opacity: .6
        }
        .featured-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(7, 10, 8, .72), rgba(7, 10, 8, .12))
        }
        .featured-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            padding: 34px;
            height: 100%;
            flex: 1
        }
        .featured-content .card-top {
            margin-bottom: 18px
        }
        .featured-content h3 {
            color: #fff
        }
        .featured-content .card-desc {
            color: rgba(255, 255, 255, .78);
            max-width: 580px
        }
        .featured-content .card-link {
            color: var(--brand)
        }
        .featured-content .card-icon {
            background: rgba(14, 207, 163, .2);
            color: var(--brand)
        }
        .featured-card:hover .card-icon {
            background: var(--brand);
            color: #0E100D
        }
        @media(max-width:1024px) {
            .featured-card {
                min-height: auto
            }
            .featured-content {
                padding: 28px 22px
            }
        }

        /* comparison */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--border-dark);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-dark-2);
            margin-top: 28px
        }
        .compare-panel {
            padding: 34px 30px
        }
        .compare-panel+.compare-panel {
            border-left: 1px solid var(--border-dark)
        }
        .compare-panel h3 {
            margin: 0 0 8px;
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px
        }
        .compare-panel .panel-note {
            margin: 0 0 20px;
            font-size: 13px;
            color: var(--muted-light)
        }
        .panel-strong h3 i {
            color: var(--brand);
            font-size: 17px
        }
        .panel-weak {
            background: rgba(255, 255, 255, .035)
        }
        .panel-weak h3 {
            color: rgba(255, 255, 255, .5)
        }
        .panel-weak .panel-note {
            color: rgba(255, 255, 255, .38)
        }
        .compare-table {
            display: flex;
            flex-direction: column
        }
        .compare-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border-top: 1px solid rgba(255, 255, 255, .08);
            font-size: 14px;
            line-height: 1.75
        }
        .compare-row>div {
            padding: 16px 10px;
            color: rgba(255, 255, 255, .82)
        }
        .compare-row>div:first-child {
            border-right: 1px solid rgba(255, 255, 255, .08)
        }
        .check {
            display: inline-flex;
            align-items: center;
            gap: 7px
        }
        .check::before {
            content: "";
            width: 6px;
            height: 6px;
            flex: none;
            border-radius: 50%;
            background: var(--brand);
            box-shadow: 0 0 0 4px rgba(14, 207, 163, .14)
        }
        .cross {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            color: rgba(255, 255, 255, .42)
        }
        .cross::before {
            content: "×";
            flex: none;
            font-size: 15px;
            color: rgba(255, 255, 255, .38)
        }
        .compare-weak-row .label {
            color: rgba(255, 255, 255, .58)
        }
        .control-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            border: 0;
            font-size: 13px;
            color: var(--muted-light)
        }
        .control-row>div {
            padding: 18px 2px;
            font-weight: 600;
            color: rgba(255, 255, 255, .6)
        }
        .control-row>div:first-child {
            color: #fff
        }
        @media(max-width:820px) {
            .compare-grid {
                grid-template-columns: 1fr
            }
            .compare-panel+.compare-panel {
                border-left: 0;
                border-top: 1px solid var(--border-dark)
            }
            .compare-row {
                font-size: 14px
            }
        }
        @media(max-width:560px) {
            .compare-panel {
                padding: 24px 18px
            }
            .compare-row {
                grid-template-columns: 1fr
            }
            .compare-row>div:first-child {
                border-right: 0;
                border-bottom: 1px solid rgba(255, 255, 255, .08)
            }
            .panel-weak {
                margin-top: 10px;
                border-top: 1px solid var(--border-dark)
            }
        }

        /* Steps */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 26px
        }
        .step-item {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-soft)
        }
        .step-num {
            display: inline-flex;
            font-size: 15px;
            font-weight: 800;
            letter-spacing: .1em;
            color: var(--brand-deep);
            background: rgba(14, 207, 163, .1);
            border-radius: var(--radius-pill);
            padding: 2px 13px;
            margin-bottom: 34px
        }
        .step-item h3 {
            margin: 0 0 10px;
            font-size: 19px;
            font-weight: 700;
            color: #1A2420
        }
        .step-item p {
            margin: 0;
            color: var(--muted-dark);
            font-size: 14px;
            line-height: 1.85
        }
        .step-item {
            transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease)
        }
        .step-item:hover {
            transform: translateY(-3px);
            border-color: rgba(14, 207, 163, .4);
            box-shadow: 0 22px 46px rgba(20, 18, 12, .1)
        }
        @media(max-width:1024px) {
            .step-grid {
                grid-template-columns: 1fr 1fr
            }
            .step-item:last-child {
                grid-column: 1/-1
            }
        }
        @media(max-width:680px) {
            .step-grid {
                grid-template-columns: 1fr
            }
            .step-item:last-child {
                grid-column: auto
            }
        }

        /* note strip */
        .note-strip {
            margin-top: 26px;
            padding: 22px 26px;
            border-left: 3px solid var(--brand);
            background: #EDEAE0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--muted-dark);
            font-size: 14px;
            line-height: 1.9
        }
        .note-strip strong {
            color: #1A2420
        }

        /* FAQ */
        .faq-block {
            background: #FCFAF4;
            max-width: 920px;
            margin: 0 auto
        }
        .faq-block .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            background: transparent
        }
        .faq-block .accordion-item {
            margin: 0;
            background: transparent;
            border-bottom: 1px solid var(--border-light)
        }
        .faq-block .accordion-item:first-child {
            border-top: 1px solid var(--border-light)
        }
        .faq-block .accordion-title {
            position: relative;
            display: block;
            padding: 24px 50px 24px 0;
            background: transparent;
            border: 0;
            color: #1A2420;
            font-size: 17px;
            font-weight: 700;
            line-height: 1.5;
            border-radius: 0
        }
        .faq-block .accordion-title:hover,
        .faq-block .accordion-title:focus {
            background: rgba(14, 207, 163, .05);
            color: #0C805E
        }
        .faq-block .accordion-title::after {
            content: "+";
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-light);
            border-radius: 50%;
            font-size: 20px;
            font-weight: 300;
            color: #1A2420;
            background: #fff;
            line-height: 1;
            transition: transform var(--ease), border-color var(--ease), color var(--ease)
        }
        .faq-block .accordion-item.is-active .accordion-title::after {
            transform: translateY(-50%) rotate(45deg);
            border-color: var(--brand);
            color: var(--brand-deep)
        }
        .faq-block .accordion-content {
            padding: 0 0 26px;
            border: 0;
            background: transparent;
            color: var(--muted-dark);
            font-size: 15px;
            line-height: 1.9
        }
        .faq-block .accordion-content p:first-child {
            padding-top: 0
        }
        .faq-block .accordion-content p {
            margin: 0
        }

        /* CTA */
        .cta-band {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            color: #fff
        }
        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 44px 44px;
            pointer-events: none
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
            text-align: center;
            margin: 0 auto;
            padding: 110px 0
        }
        .cta-inner h2 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            margin: 14px 0 12px
        }
        .cta-inner p {
            margin: 0 auto 30px;
            color: rgba(255, 255, 255, .68);
            max-width: 620px;
            font-size: 16px;
            line-height: 1.85
        }
        .cta-btns {
            display: flex;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap
        }
        .cta-tip {
            margin-top: 22px;
            font-size: 12px;
            color: rgba(255, 255, 255, .4)
        }
        @media(max-width:640px) {
            .cta-inner {
                padding: 70px 0
            }
            .cta-btns .btn {
                width: 100%
            }
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, .06);
            color: #9FA69C;
            font-size: 14px;
            padding: 72px 0 30px
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.35fr .8fr 1fr;
            gap: 44px;
            padding-bottom: 40px
        }
        .footer-brand p {
            margin-top: 18px;
            line-height: 1.85;
            max-width: 380px;
            color: rgba(255, 255, 255, .5)
        }
        .site-footer .brand-mark {
            width: 38px;
            height: 38px;
            font-size: 21px
        }
        .footer-title {
            margin: 0 0 20px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .08em;
            color: rgba(255, 255, 255, .68)
        }
        .footer-links {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px
        }
        .footer-links a {
            display: inline-block;
            line-height: 1.7;
            color: rgba(255, 255, 255, .58);
            transition: color var(--ease), transform var(--ease)
        }
        .footer-links a:hover {
            color: var(--brand);
            transform: translateX(3px)
        }
        .footer-note {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: var(--radius-sm);
            padding: 22px;
            line-height: 1.85;
            font-size: 13px;
            color: rgba(255, 255, 255, .52)
        }
        .footer-note strong {
            display: block;
            margin-bottom: 6px;
            color: rgba(255, 255, 255, .75);
            font-size: 14px
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding-top: 22px;
            font-size: 13px;
            color: rgba(255, 255, 255, .36)
        }
        .footer-bottom p {
            margin: 0
        }
        @media(max-width:1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr
            }
            .footer-note {
                grid-column: 1/-1
            }
        }
        @media(max-width:680px) {
            .site-footer {
                padding: 54px 0 22px
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px
            }
            .footer-note {
                grid-column: auto
            }
            .footer-bottom {
                flex-direction: column
            }
        }

/* roulang page: category3 */
:root{
  --ink:#0e100d;
  --ink-2:#141610;
  --ink-3:#1b1e18;
  --line-dark:rgba(255,255,255,.08);
  --line-soft:rgba(255,255,255,.14);
  --paper:#f4f1e8;
  --paper-2:#fbfaf5;
  --brand:#0ecfa3;
  --brand-bright:#3ae3bb;
  --lime:#d8ff73;
  --text-dark:#1c211b;
  --text-soft:#5f685e;
  --muted:#aab2a4;
  --muted-light:#c9d0c4;
  --radius-lg:14px;
  --radius-sm:8px;
  --shadow-deep:0 24px 60px rgba(0,0,0,.22);
  --shadow-card:0 16px 40px rgba(12,16,13,.12);
}
*,
*::before,
*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--text-dark);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button,input{font-family:inherit;font-size:inherit;color:inherit;border:0;background:none;}
button{cursor:pointer;}

a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
}

.wrap{
  max-width:1220px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
  width:100%;
}
.container{width:100%;margin:0 auto;max-width:1220px;padding:0 24px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform .25s ease,background .25s ease,border-color .25s ease,color .25s ease,box-shadow .25s ease;
}
.btn-primary{
  background:var(--brand);
  color:#0a1710;
}
.btn-primary:hover{
  background:var(--brand-bright);
  color:#0a1710;
  transform:translateY(-2px);
  box-shadow:0 14px 28px rgba(14,207,163,.24);
}
.btn-line-dark{
  border-color:rgba(26,30,22,.3);
  color:#1a1e18;
  background:transparent;
}
.btn-line-dark:hover{
  background:#10130d;
  color:#ffffff;
  border-color:#10130d;
  transform:translateY(-2px);
}
.btn-cardline{
  border-color:var(--line-soft);
  color:#eef0e6;
  background:transparent;
  min-height:42px;
  padding:0 16px;
}
.btn-cardline:hover{
  border-color:var(--brand);
  color:var(--brand);
  transform:translateY(-2px);
}
.btn-solid-dark{
  background:#0d120c;
  color:#ffffff;
}
.btn-solid-dark:hover{
  background:#10150e;
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(0,0,0,.24);
}

.corner-tag{
  position:absolute;
  top:14px;
  right:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--lime);
  color:#161f10;
  font-size:12px;
  font-weight:600;
  line-height:1;
  padding:7px 12px;
  border-radius:999px;
  white-space:nowrap;
  box-shadow:0 6px 18px rgba(0,0,0,.22);
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(14,16,13,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-wrap{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:72px;
  max-width:1280px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#f4f6ef;
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:10px;
  background:var(--brand);
  color:#0a1710;
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:22px;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .25s ease,transform .25s ease;
}
.brand:hover .brand-mark{
  background:var(--brand-bright);
  transform:translateY(-2px);
}
.brand-name{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand-name strong{
  font-size:18px;
  font-weight:800;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-name small{
  margin-top:3px;
  font-size:10px;
  letter-spacing:.22em;
  color:rgba(255,255,255,.66);
}
.main-nav{
  margin-left:auto;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
}
.nav-list a{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  font-size:14px;
  font-weight:500;
  color:rgba(244,246,239,.88);
  border-radius:999px;
  transition:background .24s ease,color .24s ease;
}
.nav-list a:hover{
  background:rgba(255,255,255,.08);
  color:#ffffff;
}
.nav-list a.is-active{
  background:rgba(14,207,163,.11);
  color:var(--brand);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:14px;
}
.search-form{
  display:flex;
  align-items:center;
  gap:6px;
  height:42px;
  padding:0 14px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:999px;
  background:rgba(255,255,255,.05);
  transition:width .3s ease,border-color .3s ease,background .3s ease;
}
.search-form .search-ico{
  font-size:13px;
  color:rgba(255,255,255,.64);
}
.search-form input{
  width:128px;
  background:transparent;
  border:0;
  color:#f4f6ef;
  font-size:13px;
  transition:width .3s ease;
}
.search-form input::placeholder{color:rgba(255,255,255,.48);}
.search-form:focus-within{
  border-color:var(--brand);
  background:rgba(255,255,255,.09);
}
.search-form:focus-within input{width:170px;}
.search-form input:focus{outline:none;}
.header-entry-btn{
  white-space:nowrap;
  min-height:42px;
  padding:0 18px;
}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  width:44px;
  height:44px;
  border-radius:10px;
  background:transparent;
  border:1px solid rgba(255,255,255,.18);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:#f4f6ef;
  transition:background .3s ease,transform .3s ease,opacity .3s ease;
}
.nav-toggle:hover span{background:var(--brand);}

/* Breadcrumb */
.crumb-row{
  padding-top:22px;
}
.crumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:#70746c;
}
.crumb a{
  color:#17190f;
  transition:color .2s ease;
}
.crumb a:hover{color:var(--brand);}
.crumb .crumb-sep{
  width:3px;
  height:3px;
  border-radius:50%;
  background:#a4a89d;
  display:inline-block;
}
.crumb-current{color:#17190f;font-weight:600;}

/* Hero */
.page-hero{
  background:var(--paper);
  color:#171b15;
  padding:8px 0 76px;
  overflow:hidden;
  position:relative;
}
.hero-split{
  align-items:center;
  padding-top:10px;
}
.hero-copy{
  padding-right:42px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:#4f594d;
  border:1px solid rgba(27,32,24,.16);
  border-radius:999px;
  padding:6px 13px;
  background:rgba(255,255,255,.44);
}
.hero-eyebrow span{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
}
.hero-copy h1{
  margin-top:18px;
  font-size:clamp(40px,6vw,72px);
  font-weight:800;
  letter-spacing:-.015em;
  line-height:1.08;
}
.hero-copy .lead{
  margin-top:18px;
  font-size:16px;
  line-height:1.85;
  max-width:58ch;
  color:#4d574d;
}
.hero-actions{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.hero-points li{
  list-style:none;
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:#5e675d;
}
.hero-points li i{
  color:var(--brand);
  font-size:12px;
}
.hero-visual{
  position:relative;
}
.hero-visual .hero-frame{
  border-radius:var(--radius-lg);
  overflow:hidden;
  position:relative;
  box-shadow:var(--shadow-card);
  background:#e2ded2;
}
.hero-frame img{
  width:100%;
  height:290px;
  object-fit:cover;
  transition:transform .6s ease;
}
.hero-frame:hover img{
  transform:scale(1.03);
}
.hero-float-note{
  position:absolute;
  left:14px;
  bottom:14px;
  background:rgba(11,13,10,.74);
  color:#eef1ea;
  font-size:13px;
  line-height:1.5;
  padding:10px 14px;
  border-radius:10px;
  max-width:86%;
}
.hero-float-note strong{color:var(--brand);}

/* Section common */
.section-pad{padding:96px 0;}
.section-head{
  margin-bottom:26px;
}
.section-head .section-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  letter-spacing:.08em;
  font-weight:600;
  border-radius:999px;
  padding:5px 12px;
  background:rgba(216,255,115,.12);
  border:1px solid rgba(216,255,115,.18);
  color:var(--lime);
}
.section-head .section-tag--paper{
  background:rgba(14,207,163,.08);
  border-color:rgba(14,207,163,.2);
  color:#43b99a;
}
.section-head h2{
  font-size:clamp(28px,4vw,46px);
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
  margin-top:12px;
}
.section-desc{
  font-size:15px;
  line-height:1.85;
  color:var(--muted-light);
}
.section-desc--paper{color:var(--text-soft);}
.feature-dark{
  background:var(--ink);
  color:#f0f3ed;
  padding:104px 0 96px;
}
.feature-dark .section-head{
  margin-bottom:34px;
}
.feature-stack{
  margin-top:26px;
}
.feature-row{
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-top:0;
}
.feature-row+.feature-row{
  margin-top:54px;
  padding-top:54px;
}
.feature-row:last-child{
  border-bottom:0;
  padding-bottom:0;
}
.feature-media{
  position:relative;
}
.feature-media .figure{
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--ink-3);
}
.feature-media img{
  width:100%;
  height:272px;
  object-fit:cover;
  transition:transform .6s ease,opacity .4s ease;
}
.feature-media:hover img{
  transform:scale(1.03);
}
.feature-info{
  padding-left:58px;
}
.feature-row--reverse .feature-info{
  padding-left:0;
  padding-right:58px;
}
.feature-num{
  display:block;
  font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;
  font-size:54px;
  line-height:1;
  font-weight:700;
  color:var(--brand);
  opacity:.15;
  user-select:none;
}
.feature-info h3{
  margin-top:8px;
  font-size:clamp(23px,2.8vw,32px);
  font-weight:800;
  letter-spacing:-.01em;
}
.feature-info p{
  margin-top:10px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted-light);
  max-width:55ch;
}
.feature-cta{
  margin-top:22px;
  display:flex;
  align-items:center;
  gap:10px;
}
.feature-info .btn-cardline i{
  font-size:12px;
  transition:transform .25s ease;
}
.feature-info .btn-cardline:hover i{
  transform:translateX(4px);
}

/* Steps and rule light */
.assist-section{
  background:var(--paper);
  padding:100px 0;
}
.section-head--paper h2{
  color:var(--text-dark);
}
.section-head--paper .section-tag{
  border-color:rgba(14,207,163,.28);
  color:#0a8b73;
  background:rgba(14,207,163,.08);
}
.assist-head-desc{
  max-width:60ch;
  color:#687066;
  font-size:15px;
  line-height:1.85;
  margin-top:8px;
}
.steps-wrap{
  margin-top:14px;
}
.step-list{
  counter-reset:step;
}
.step-card{
  display:flex;
  gap:18px;
  padding:22px 4px;
  border-bottom:1px solid #dcd8c9;
}
.step-card:last-child{
  border-bottom:0;
}
.step-index{
  flex:0 0 42px;
  width:42px;
  height:42px;
  border-radius:50%;
  background:var(--ink);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:16px;
  border:1px solid rgba(255,255,255,.1);
}
.step-main h4{
  font-size:18px;
  font-weight:700;
  margin-bottom:6px;
}
.step-main p{
  color:#636c61;
  font-size:15px;
  line-height:1.8;
  max-width:58ch;
}
.rule-panel{
  background:#fffdf6;
  border:1px solid #e9e3d3;
  border-left:3px solid var(--brand);
  border-radius:var(--radius-lg);
  padding:30px 30px 22px;
  box-shadow:0 8px 24px rgba(26,32,24,.05);
}
.rule-panel h4{
  font-size:20px;
  font-weight:700;
}
.rule-list{
  margin-top:14px;
}
.rule-list li{
  list-style:none;
  position:relative;
  padding:6px 0 6px 24px;
  color:#5c665b;
  font-size:14px;
  line-height:1.8;
}
.rule-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:15px;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--brand);
}

/* FAQ dark */
.faq-dark{
  background:#0a0c09;
  color:#eef1eb;
  padding:100px 0;
  position:relative;
}
.faq-dark .section-head{
  max-width:820px;
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.faq-dark .section-head .section-tag{
  margin-left:auto;
  margin-right:auto;
}
.faq-heading h2{
  color:#f4f6ef;
}
.faq-heading p{
  color:#98a092;
  font-size:14px;
  max-width:52ch;
  margin:12px auto 0;
}
.faq-card{
  max-width:860px;
  margin:50px auto 0;
  background:var(--ink-3);
  border:1px solid rgba(255,255,255,.07);
  border-radius:18px;
  padding:20px 30px;
}
.faq-accordion{
  margin:0;
  background:transparent;
}
.faq-accordion .accordion-item{
  border-bottom:1px solid rgba(255,255,255,.09);
  list-style:none;
}
.faq-accordion .accordion-item:last-child{
  border-bottom:0;
}
.faq-accordion .accordion-title{
  display:flex;
  align-items:center;
  gap:20px;
  justify-content:space-between;
  padding:22px 4px;
  font-size:16px;
  font-weight:600;
  color:#eef1eb;
  background:transparent;
  transition:color .25s ease;
}
.faq-accordion .accordion-title:hover{
  color:var(--brand);
  background:transparent;
}
.faq-accordion .accordion-title::before{
  content:"+";
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-left:auto;
  font-size:22px;
  font-weight:400;
  line-height:1;
  width:30px;
  height:30px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.24);
  color:#d4dacd;
  transition:transform .3s ease,color .25s ease,border-color .25s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{
  transform:rotate(45deg);
  color:var(--brand);
  border-color:var(--brand);
}
.faq-accordion .accordion-content{
  padding:0 4px 24px;
  background:transparent;
  color:var(--muted-light);
  font-size:14px;
  line-height:1.9;
}
.faq-accordion .accordion-content p{
  color:var(--muted-light);
}
.faq-accordion .accordion-content a{
  color:var(--brand);
}

/* CTA */
.cta-banner{
  background:var(--paper);
  padding:70px 0;
}
.cta-panel{
  background:var(--brand);
  border-radius:18px;
  padding:44px 50px 46px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:28px;
  box-shadow:0 18px 50px rgba(12,44,36,.2);
}
.cta-copy h2{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:800;
  color:#0b1a10;
  letter-spacing:-.01em;
}
.cta-copy p{
  color:#173229;
  font-size:15px;
  margin-top:10px;
  max-width:64ch;
}
.cta-actions{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
}
.btn-dark-on-brand{
  background:#0b120c;
  color:#ffffff;
  border-color:#0b120c;
}
.btn-dark-on-brand:hover{
  background:#233a24;
  transform:translateY(-2px);
}
.cta-actions .link-note{
  color:#0e2818;
  font-weight:600;
  font-size:14px;
}

/* Footer */
.site-footer{
  background:#0a0c09;
  color:#b7beb1;
  padding:76px 0 26px;
  font-size:14px;
}
.footer-grid{
  align-items:stretch;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.footer-grid .cell{
  padding-right:50px;
}
.footer-grid .cell:last-child{
  padding-right:0;
}
.footer-brand-col{
  color:#d7ddd3;
}
.footer-brand-col .brand{
  margin-bottom:16px;
}
.footer-brand-col p{
  max-width:40ch;
  color:#929b8e;
  font-size:14px;
  line-height:1.85;
  margin-top:2px;
}
.footer-title{
  color:#eef1ea;
  font-weight:700;
  font-size:15px;
  margin-bottom:14px;
  padding-top:2px;
}
.footer-links-col ul{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links-col li{
  list-style:none;
}
.footer-links-col li a{
  color:#abb4a6;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links-col li a:hover{
  color:var(--brand);
  padding-left:4px;
}
.footer-note-col{
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.07);
  border-radius:16px;
  padding:22px 24px !important;
}
.footer-note-col strong{
  color:#eef1eb;
  display:block;
  font-size:14px;
  margin-bottom:8px;
}
.footer-note-col p,
.footer-note-col div{
  color:#9ca498;
  font-size:13px;
  line-height:1.85;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  padding-top:24px;
  color:#7c8478;
  font-size:12px;
}

/* Responsive */
@media screen and (min-width:1025px){
  .feature-row--reverse .feature-media{order:2;}
  .feature-row--reverse .feature-info{order:1;}
}

@media screen and (max-width:1200px){
  .feature-media img{
    height:250px;
  }
  .feature-info{
    padding-left:38px;
  }
  .feature-row--reverse .feature-info{
    padding-left:0;
    padding-right:38px;
  }
}

@media screen and (max-width:1100px){
  .main-nav{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    width:100%;
    background:rgba(13,15,12,.98);
    border-top:1px solid rgba(255,255,255,.06);
    padding:10px 24px 22px;
    box-shadow:0 24px 60px rgba(0,0,0,.35);
  }
  .main-nav.nav-open{
    display:block;
  }
  .nav-list{
    flex-direction:column;
    align-items:center;
    gap:2px;
  }
  .nav-list a{
    display:flex;
    justify-content:center;
    width:100%;
    border-radius:12px;
  }
  .nav-list a.is-active{
    background:rgba(14,207,163,.12);
  }
  .nav-toggle{
    display:inline-flex;
    margin-left:auto;
  }
  .search-item{
    display:none;
  }
  .header-entry-btn{
    display:none;
  }
  .header-wrap{
    flex-wrap:wrap;
    min-height:64px;
  }
}

@media screen and (max-width:1024px){
  .page-hero .hero-copy{
    padding-right:0;
  }
  .hero-visual{
    margin-top:40px;
  }
  .hero-visual .hero-frame img{
    height:300px;
  }
  .feature-info,
  .feature-row--reverse .feature-info{
    padding-left:0;
    padding-right:0;
    margin-top:18px;
  }
  .feature-info p{
    max-width:none;
  }
}

@media screen and (max-width:890px){
  .section-pad,.feature-dark,.assist-section,.faq-dark{
    padding-top:76px;
    padding-bottom:76px;
  }
  .cta-panel{
    padding:36px 30px;
  }
  .rule-panel{
    margin-top:30px;
  }
  .faq-card{
    padding:12px 22px;
  }
  .footer-grid .cell{
    padding-right:0;
    margin-bottom:36px;
  }
  .footer-grid .cell:last-child{
    margin-bottom:0;
  }
  .cta-actions{
    width:100%;
  }
}

@media screen and (max-width:639px){
  .wrap{
    padding-left:18px;
    padding-right:18px;
  }
  .page-hero{
    padding-bottom:58px;
  }
  .hero-copy h1{
    font-size:clamp(32px,11vw,48px);
    line-height:1.12;
  }
  .hero-copy .lead{
    font-size:15px;
  }
  .hero-actions{
    gap:10px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .hero-frame img{
    height:240px;
  }
  .hero-float-note{
    max-width:100%;
    position:static;
    margin-top:12px;
    border-radius:10px;
  }
  .section-head h2{
    font-size:clamp(24px,6vw,34px);
  }
  .feature-dark .feature-row{
    margin-top:14px;
  }
  .feature-row+.feature-row{
    margin-top:36px;
    padding-top:36px;
  }
  .feature-media img{
    height:200px;
  }
  .feature-num{
    font-size:44px;
  }
  .feature-info h3{
    font-size:23px;
  }
  .feature-cta .btn{
    width:100%;
  }
  .assist-section{
    padding:68px 0;
  }
  .step-card{
    padding:18px 0;
  }
  .step-index{
    flex-basis:34px;
    width:34px;
    height:34px;
    font-size:14px;
  }
  .step-main p{
    font-size:14px;
  }
  .rule-panel{
    padding:24px 20px 18px;
  }
  .faq-dark{
    padding:68px 0;
  }
  .faq-card{
    padding:4px 16px;
  }
  .faq-accordion .accordion-title{
    padding:18px 2px;
    font-size:14.5px;
  }
  .faq-accordion .accordion-title::before{
    width:26px;
    height:26px;
    font-size:18px;
  }
  .cta-banner{
    padding:56px 0;
  }
  .cta-panel{
    padding:30px 22px;
    border-radius:14px;
  }
  .cta-actions .btn{
    width:100%;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
  }
}

/* roulang page: category4 */
:root {
            --bg-dark: #0e100d;
            --bg-dark-2: #15170f;
            --bg-dark-3: #1a1d16;
            --bg-light: #f4f1e8;
            --bg-light-2: #faf8f1;
            --text-light: #f5f6f0;
            --text-muted: #9aa093;
            --ink: #191b14;
            --ink-muted: #6a7064;
            --line-light: #ded9cb;
            --line-dark: rgba(255, 255, 255, .1);
            --primary: #0ecfa3;
            --primary-bright: #38e1bb;
            --accent: #d8ff73;
            --radius-lg: 14px;
            --radius-sm: 8px;
            --shadow-dark: 0 20px 50px rgba(0, 0, 0, .18);
            --shadow-light: 0 16px 38px rgba(40, 44, 30, .06);
            --space-section: clamp(80px, 10vw, 128px);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--bg-dark);
            color: var(--text-light);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .22s ease;
        }

        a:hover {
            color: var(--primary-bright);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        ul,
        ol,
        p,
        h1,
        h2,
        h3,
        h4,
        figure {
            margin: 0;
            padding: 0;
        }

        .wrap {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 28px;
            position: relative;
            z-index: 2;
        }

        .skip-link {
            position: fixed;
            left: 16px;
            top: -80px;
            z-index: 999;
            background: var(--primary);
            color: #10120d;
            padding: 12px 20px;
            border-radius: 999px;
            font-weight: 700;
            transition: top .25s ease;
        }

        .skip-link:focus {
            top: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 0 22px;
            border: 0;
            border-radius: 999px;
            font-family: inherit;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            text-decoration: none;
            line-height: 1.2;
            transition: transform .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
        }

        .btn:focus-visible,
        .header-search input:focus-visible,
        .accordion-title:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(216, 255, 115, .7);
            outline-offset: 3px;
        }

        .btn-primary {
            background: var(--primary);
            color: #0a0c08;
        }

        .btn-primary:hover {
            background: var(--primary-bright);
            color: #0a0c08;
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #d9ded5;
            border: 1px solid rgba(255, 255, 255, .55);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .08);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-dark {
            background: #11130e;
            color: #fff;
        }

        .btn-dark:hover {
            background: #1f2418;
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-small {
            min-height: 40px;
            padding: 0 18px;
            font-size: 14px;
        }

        .btn-block {
            width: 100%;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: .08em;
            color: var(--primary);
            text-transform: none;
        }

        .section-label::before {
            content: "";
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .section-label.is-dark {
            color: var(--primary);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.18;
            color: var(--ink);
            margin-top: 12px;
            letter-spacing: -.01em;
        }

        .section-title.is-light {
            color: var(--text-light);
        }

        .section-intro {
            margin-top: 16px;
            color: var(--ink-muted);
            font-size: 16px;
            max-width: 640px;
        }

        .section-intro.is-light {
            color: var(--text-muted);
        }

        /* header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(14, 16, 13, .92);
            border-bottom: 1px solid transparent;
            transition: border-color .25s ease, background .25s ease;
        }

        .site-header .header-row {
            display: flex;
            align-items: center;
            min-height: 72px;
            gap: 28px;
            position: relative;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex-shrink: 0;
        }

        .brand-mark {
            width: 38px;
            height: 38px;
            border-radius: 11px;
            background: var(--primary);
            color: #0a0c08;
            font-weight: 900;
            font-size: 23px;
            display: grid;
            place-items: center;
            line-height: 1;
            transform: rotate(-3deg);
        }

        .brand-name {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
        }

        .brand-name strong {
            color: #fff;
            font-size: 17px;
            font-weight: 800;
            letter-spacing: .01em;
        }

        .brand-name small {
            color: var(--primary);
            font-size: 9px;
            font-weight: 600;
            letter-spacing: .24em;
            margin-top: 4px;
        }

        .main-nav {
            flex: 1;
            display: flex;
            justify-content: center;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
            list-style: none;
        }

        .nav-list a {
            position: relative;
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            color: rgba(255, 255, 255, .68);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
        }

        .nav-list a:hover {
            color: #fff;
        }

        .nav-list a.is-active {
            color: #fff;
            font-weight: 700;
        }

        .nav-list a.is-active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 6px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }

        .header-search input {
            width: 148px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            background: rgba(255, 255, 255, .06);
            padding: 0 16px 0 38px;
            color: #fff;
            font-size: 14px;
            font-family: inherit;
            transition: width .25s ease, border-color .25s ease, background .25s ease;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, .42);
        }

        .header-search input:focus {
            width: 204px;
            border-color: var(--primary);
            outline: none;
            background: rgba(255, 255, 255, .1);
        }

        .header-search .search-icon {
            position: absolute;
            left: 14px;
            z-index: 1;
            color: rgba(255, 255, 255, .45);
            pointer-events: none;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 0;
            background: transparent;
            cursor: pointer;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .nav-toggle svg {
            width: 24px;
            height: 24px;
        }

        .mobile-search {
            display: none;
        }

        /* hero */
        .page-hero {
            position: relative;
            background: var(--bg-dark-2);
            padding: 70px 0 86px;
            overflow: hidden;
        }

        .page-hero .hero-backdrop {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center 20%;
            opacity: .26;
        }

        .page-hero .hero-backdrop::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(14, 16, 13, .85), rgba(14, 16, 13, .28));
        }

        .breadcrumbs {
            margin-top: 2px;
            margin-bottom: 24px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumbs a {
            color: var(--text-muted);
        }

        .breadcrumbs a:hover {
            color: var(--primary);
        }

        .breadcrumbs span {
            margin: 0 7px;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            background: rgba(255, 255, 255, .05);
            color: #cfd6ca;
            font-size: 13px;
            padding: 5px 14px;
            margin-bottom: 18px;
        }

        .hero-kicker i {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .page-hero h1 {
            font-size: clamp(34px, 5.4vw, 60px);
            font-weight: 800;
            line-height: 1.12;
            color: #fff;
            letter-spacing: -.025em;
        }

        .hero-lead {
            max-width: 585px;
            margin-top: 20px;
            color: #b9bfb2;
            font-size: 16px;
            line-height: 1.9;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 30px;
        }

        .hero-media {
            position: relative;
            border-radius: 16px;
            overflow: hidden;
            background: #151810;
            box-shadow: var(--shadow-dark);
        }

        .hero-media img {
            width: 100%;
            height: 378px;
            object-fit: cover;
            transition: transform 6s cubic-bezier(.2, .6, .3, 1);
        }

        .hero-media:hover img {
            transform: scale(1.035);
        }

        .hero-media-caption {
            position: absolute;
            left: 12px;
            bottom: 12px;
            right: 12px;
            background: rgba(10, 12, 8, .78);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 10px;
            color: #e9edE3;
            padding: 10px 14px;
            font-size: 12px;
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-media-caption b {
            color: var(--accent);
            font-weight: 700;
        }

        /* doc section */
        .doc-section {
            background: var(--bg-light);
            padding: var(--space-section) 0;
            color: var(--ink);
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 40px;
            margin-bottom: 14px;
        }

        .doc-list {
            margin-top: 44px;
            border-top: 1px solid var(--line-light);
        }

        .doc-item {
            border-bottom: 1px solid var(--line-light);
            padding: 44px 0 42px;
            align-items: flex-start;
        }

        .doc-item .doc-number {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-weight: 700;
            font-size: 15px;
        }

        .doc-number em {
            font-style: normal;
            font-weight: 800;
            font-size: 34px;
            line-height: 1;
            font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
            color: #b9c0a6;
            margin-right: 2px;
        }

        .doc-heading {
            padding-top: 8px;
        }

        .doc-heading .doc-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: #5f6755;
            border: 1px solid #d5cfbc;
            border-radius: 999px;
            padding: 2px 11px;
            background: rgba(255, 255, 255, .35);
            margin-bottom: 12px;
        }

        .doc-heading h3 {
            font-size: clamp(20px, 2.2vw, 26px);
            line-height: 1.35;
            font-weight: 700;
            color: var(--ink);
        }

        .doc-summary {
            color: var(--ink-muted);
            font-size: 15px;
            line-height: 1.95;
            padding-top: 14px;
            max-width: 640px;
        }

        .doc-summary strong {
            color: var(--ink);
            font-weight: 600;
        }

        /* security list */
        .security-section {
            background: var(--bg-dark-2);
            padding: var(--space-section) 0;
            color: #fff;
        }

        .security-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 40px;
            margin-bottom: 44px;
        }

        .security-check-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .security-check-list li {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            padding: 22px 0;
            font-size: 16px;
            line-height: 1.75;
            color: #d7dcd0;
        }

        .security-check-list li:last-child {
            border-bottom: 0;
        }

        .check-mark {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(14, 207, 163, .16);
            border: 1px solid var(--primary);
            color: var(--primary);
            display: grid;
            place-items: center;
            flex-shrink: 0;
            margin-top: 4px;
        }

        .check-mark svg {
            width: 13px;
            height: 13px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2.6;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .security-note {
            position: relative;
            padding: 26px 28px 26px 82px;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 14px;
            background: rgba(255, 255, 255, .035);
            color: #b5bdad;
            font-size: 15px;
        }

        .security-note::before {
            content: "!";
            position: absolute;
            left: 26px;
            top: 28px;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            font-weight: 800;
            font-size: 18px;
            color: var(--bg-dark-2);
            background: var(--accent);
            line-height: 1;
        }

        .security-note strong {
            display: block;
            color: #fff;
            font-size: 18px;
            margin-bottom: 8px;
            font-weight: 800;
        }

        .security-note p {
            margin: 0;
        }

        /* faq */
        .faq-section {
            background: var(--bg-light-2);
            padding: var(--space-section) 0;
            color: var(--ink);
        }

        .faq-wrap {
            max-width: 840px;
            margin-top: 44px;
        }

        .faq-wrap .accordion {
            list-style: none;
            margin: 0;
            padding: 0;
            background: transparent;
        }

        .faq-wrap .accordion-item {
            background: transparent;
            border-bottom: 1px solid var(--line-light);
            border-radius: 0;
        }

        .faq-wrap .accordion-title {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: transparent;
            border: 0;
            color: var(--ink);
            font-size: 17px;
            font-weight: 700;
            line-height: 1.6;
            padding: 26px 52px 26px 0;
            margin: 0;
            min-height: 44px;
            cursor: pointer;
        }

        .faq-wrap .accordion-title:hover {
            color: #087e63;
            background: transparent;
        }

        .faq-wrap .accordion-title::after {
            content: "";
            position: absolute;
            right: 8px;
            top: 50%;
            width: 26px;
            height: 26px;
            margin: 0;
            border: 0;
            border-radius: 50%;
            background: rgba(14, 207, 163, .12);
            transform: translateY(-50%);
        }

        .faq-wrap .accordion-title::before {
            content: "+";
            position: absolute;
            right: 7px;
            top: 50%;
            width: 28px;
            text-align: center;
            font-family: inherit;
            font-size: 24px;
            font-weight: 400;
            color: var(--primary);
            line-height: 28px;
            transform: translateY(-50%);
            transition: transform .3s ease;
            z-index: 1;
        }

        .faq-wrap .accordion-item.is-active>.accordion-title::before {
            transform: translateY(-50%) rotate(45deg);
            color: var(--accent);
        }

        .faq-wrap .accordion-content {
            background: transparent;
            border: 0;
            color: var(--ink-muted);
            font-size: 15px;
            line-height: 1.95;
            padding: 0 52px 30px 0;
            border-top: 0;
        }

        .faq-wrap .accordion-item:first-child .accordion-title {
            border-top: 0;
        }

        .faq-wrap .accordion-content p + p {
            margin-top: 14px;
        }

        .faq-fallback {
            margin-top: 30px;
            font-size: 13px;
            color: var(--ink-muted);
        }

        .faq-fallback a {
            font-weight: 600;
        }

        /* cta */
        .cta-section {
            padding: 62px 0;
            background: var(--bg-dark);
        }

        .cta-banner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 44px;
            background: var(--primary);
            color: #0b0e09;
            border-radius: 18px;
            padding: clamp(30px, 4.4vw, 58px);
            position: relative;
            overflow: hidden;
        }

        .cta-banner::after {
            content: "";
            position: absolute;
            right: -70px;
            top: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 1px solid rgba(12, 20, 11, .18);
        }

        .cta-banner h2 {
            font-size: clamp(22px, 3.4vw, 34px);
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -.01em;
        }

        .cta-banner p {
            font-size: 15px;
            color: rgba(9, 12, 8, .72);
            max-width: 620px;
        }

        .cta-buttons {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        .cta-buttons .btn {
            background: #10130d;
            color: #fff;
        }

        .cta-buttons .btn:hover {
            background: #222719;
            transform: translateY(-2px);
        }

        .cta-buttons .btn-line {
            background: transparent;
            color: #10130d;
            border: 1px solid rgba(14, 18, 10, .6);
        }

        .cta-buttons .btn-line:hover {
            background: rgba(12, 15, 9, .08);
            color: #000;
        }

        /* footer */
        .site-footer {
            background: #0a0c09;
            color: #a8b0a1;
            padding-top: 70px;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .content {
            min-height: 60vh;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 44px;
            padding-bottom: 48px;
        }

        .site-footer .footer-brand .brand-name strong {
            color: #f1f4e9;
        }

        .site-footer .footer-brand p {
            font-size: 14px;
            line-height: 1.9;
            margin-top: 18px;
            max-width: 420px;
            color: #9aa292;
        }

        .site-footer .footer-title {
            font-size: 13px;
            color: #c4cbb8;
            letter-spacing: .1em;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 11px;
        }

        .footer-links a {
            color: #9aa292;
            font-size: 14px;
        }

        .footer-links a:hover {
            color: var(--primary);
            padding-left: 4px;
        }

        .footer-note {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            border-radius: 14px;
            padding: 22px 22px 20px;
            font-size: 13px;
            line-height: 1.9;
            color: #9aa292;
        }

        .footer-note strong {
            display: block;
            color: #fff;
            margin-bottom: 8px;
            font-size: 15px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            gap: 22px;
            flex-wrap: wrap;
            color: #747b6e;
            font-size: 13px;
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-icon-line {
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        /* responsive */
        @media (max-width: 1023px) {
            .site-header .header-row {
                gap: 14px;
                min-height: 64px;
            }

            .header-search {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #10130d;
                border-bottom: 1px solid rgba(255, 255, 255, .1);
                box-shadow: 0 24px 50px rgba(0, 0, 0, .34);
                transform: translateY(-8px);
                opacity: 0;
                visibility: hidden;
                pointer-events: none;
                transition: opacity .22s ease, transform .22s ease, visibility .22s ease;
                padding: 8px 24px 22px;
                z-index: 99;
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
            }

            .nav-list a {
                min-height: 48px;
                border-bottom: 1px solid rgba(255, 255, 255, .06);
                width: 100%;
                font-size: 16px;
            }

            .nav-list a.is-active::after {
                bottom: 0;
                width: 3px;
                height: auto;
                top: 0;
                left: -8px;
                right: auto;
                border-radius: 3px;
            }

            .site-header.open .main-nav {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
                pointer-events: auto;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .header-login {
                display: none;
            }

            .page-hero h1 {
                font-size: clamp(34px, 8vw, 50px);
            }

            .hero-media img {
                height: 260px;
            }

            .security-head,
            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
            }

            .security-note {
                margin-top: 24px;
            }

            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .content-inner {
                padding-top: 48px;
            }

            .doc-item {
                padding: 34px 0;
            }

            .doc-heading h3 {
                font-size: 21px;
            }

            .cta-buttons .btn {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 639px) {
            .wrap {
                padding: 0 20px;
            }

            .page-hero {
                padding: 52px 0 60px;
            }

            .page-hero h1 {
                font-size: 34px;
            }

            .hero-lead {
                font-size: 15px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-media img {
                height: 200px;
            }

            .hero-media-caption {
                left: 8px;
                right: 8px;
                bottom: 8px;
            }

            .section-head {
                flex-direction: column;
            }

            .section-title {
                font-size: 27px;
            }

            .faq-wrap .accordion-title {
                font-size: 16px;
                padding-right: 44px;
                line-height: 1.7;
            }

            .faq-wrap .accordion-content {
                padding-right: 16px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 24px;
            }

            .footer-bottom {
                flex-direction: column;
            }

            .brand-name strong {
                font-size: 16px;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .cta-banner {
                padding: 28px 22px;
            }

            .security-check-list li {
                font-size: 15px;
            }

            .security-note {
                padding-left: 22px;
            }

            .security-note::before {
                position: static;
                display: inline-flex;
                margin-bottom: 12px;
            }

            .doc-number em {
                font-size: 28px;
            }

            .cta-buttons {
                width: 100%;
            }

            .doc-summary {
                font-size: 14px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }

            *,
            *::before,
            *::after {
                transition: none !important;
                animation: none !important;
            }
        }