/* roulang page: index */
:root {
    --bg-void: #0B0A08;
    --bg-raised: #141210;
    --bg-elevated: #1C1915;
    --primary: #00D4C0;
    --accent: #FFB53C;
    --danger: #FF5E5B;
    --text-hi: #EAF2EF;
    --text-mid: #98A9B7;
    --text-low: #6A7A88;
    --border-main: rgba(0, 212, 192, 0.14);
    --border-strong: rgba(0, 212, 192, 0.35);
    --border-accent: rgba(255, 181, 60, 0.3);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 212, 192, 0.05);
    --shadow-glow-gold: 0 0 24px rgba(255, 181, 60, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--bg-void);
    color: var(--text-hi);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
body::before {
    content: "";
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 45vh;
    background:
        radial-gradient(ellipse at 15% 10%, rgba(0, 212, 192, 0.04), transparent 60%),
        radial-gradient(ellipse at 85% 15%, rgba(255, 181, 60, 0.03), transparent 60%);
    pointer-events: none;
    z-index: -1;
}
a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s, background 0.2s, border-color 0.2s, transform 0.2s;
}
a:hover { color: var(--primary); }
img { max-width: 100%; display: block; }
.btn:focus, a:focus, button:focus, input:focus {
    outline: 2px solid rgba(255, 181, 60, 0.5);
    outline-offset: 2px;
}
.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== 顶部信息条 ===== */
.utility-bar {
    height: 42px;
    background: #060504;
    border-bottom: 1px solid rgba(255, 181, 60, 0.12);
}
.utility-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}
.utility-left { color: var(--text-low); font-size: 13px; letter-spacing: 0.3px; }
.utility-right { display: flex; align-items: center; }
.utility-right a { color: var(--accent); font-size: 13px; margin-left: 16px; }
.utility-right a:hover { color: #FFD789; }
.utility-dot { color: var(--text-low); margin-left: 16px; font-size: 12px; }

/* ===== 主导航 ===== */
.site-header { position: relative; z-index: 1030; }
.main-nav {
    background: rgba(11, 10, 8, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-main);
    position: sticky;
    top: 0;
    z-index: 1030;
}
.main-nav .navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-hi) !important;
    font-size: 18px;
    font-weight: 800;
    padding: 0;
    margin: 0;
    line-height: 1.2;
    white-space: nowrap;
}
.brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 1.5px solid var(--accent);
    position: relative;
    display: inline-block;
    flex-shrink: 0;
}
.brand-mark::before {
    content: "";
    position: absolute;
    left: 4px;
    right: 4px;
    top: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1.5px solid var(--primary);
    border-bottom-color: transparent;
}
.brand-mark::after {
    content: "";
    position: absolute;
    right: 1px;
    top: 3px;
    width: 0;
    height: 0;
    border-left: 5px solid var(--accent);
    border-top: 3px solid transparent;
    border-bottom: 3px solid transparent;
}
.main-nav .navbar-toggler {
    border-color: rgba(255, 181, 60, 0.3);
    padding: 4px 10px;
}
.main-nav .navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(255, 181, 60, 0.15);
}
.main-nav .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 181, 60, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.main-nav .navbar-nav { gap: 4px; }
.main-nav .nav-link {
    color: var(--text-mid);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 16px !important;
    position: relative;
    border-radius: var(--radius-sm);
}
.main-nav .nav-link:hover { color: var(--primary); }
.main-nav .nav-link.active {
    color: var(--text-hi);
}
.main-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}
.btn-nav-cta {
    display: inline-block;
    padding: 8px 22px;
    background: var(--accent);
    color: #0B0A08 !important;
    font-weight: 700;
    border-radius: 8px;
    font-size: 14px;
    margin-left: 20px;
    transition: all 0.25s;
    white-space: nowrap;
}
.btn-nav-cta:hover {
    background: #FFD789;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
    color: #0B0A08 !important;
}

/* ===== 按钮 ===== */
.btn-main {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: var(--accent);
    color: #0B0A08;
    font-weight: 700;
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 16px;
    transition: background 0.25s, transform 0.2s, box-shadow 0.25s, color 0.25s;
    cursor: pointer;
    text-decoration: none;
}
.btn-main:hover {
    background: #FFD789;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-gold);
    color: #0B0A08;
}
.btn-main:active { transform: translateY(0); box-shadow: none; }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: background 0.25s, color 0.25s, transform 0.2s, box-shadow 0.25s;
    cursor: pointer;
    text-decoration: none;
}
.btn-ghost:hover {
    background: var(--primary);
    color: #0B0A08;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 212, 192, 0.18);
}
.btn-ghost:active { transform: translateY(0); }
.text-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 14px;
    display: inline-block;
}
.text-link:hover { text-decoration: underline; }

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 640px;
    max-height: 860px;
    height: 100vh;
    background: url("/assets/images/backpic/back-1.webp") center center / cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(11, 10, 8, 0.5) 0%, rgba(11, 10, 8, 0.78) 55%, #0B0A08 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 860px;
    padding: 0 24px;
}
.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    border: 1px solid rgba(255, 181, 60, 0.35);
    border-radius: 999px;
    font-size: 13px;
    letter-spacing: 1.5px;
    color: var(--accent);
    background: rgba(11, 10, 8, 0.4);
}
.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-hi);
    margin: 24px 0 16px;
    letter-spacing: 1px;
}
.hero-subtitle {
    font-size: 18px;
    color: var(--text-mid);
    margin-bottom: 36px;
}
.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}
.hero-metrics {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-top: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 28px;
    flex-wrap: wrap;
}
.hero-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 32px;
    position: relative;
}
.hero-metric + .hero-metric::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 32px;
    background: rgba(255, 255, 255, 0.1);
}
.metric-value {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.3;
}
.metric-label {
    font-size: 13px;
    color: var(--text-mid);
    margin-top: 4px;
}
.hero-scroll {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    width: 1px;
    height: 42px;
    background: linear-gradient(180deg, var(--accent), transparent);
}
.hero-scroll span {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: translate(-50%, 0); }
    50% { opacity: 1; transform: translate(-50%, 4px); }
}

/* ===== 区块通用 ===== */
.section { padding: 96px 0; position: relative; }
.section-head { margin-bottom: 48px; }
.section-head.text-center .section-desc { margin-left: auto; margin-right: auto; }
.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent);
    text-transform: uppercase;
    margin-bottom: 12px;
}
.section-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 16px;
    color: var(--text-hi);
}
.section-desc {
    color: var(--text-mid);
    max-width: 600px;
    margin-bottom: 0;
}

/* ===== 玩法介绍 ===== */
.steps-wrap {
    position: relative;
    background: var(--bg-raised);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 48px 32px;
    box-shadow: var(--shadow-card);
    overflow: hidden;
}
.steps-wrap::before {
    content: "";
    position: absolute;
    top: 0;
    left: 32px;
    width: 80px;
    height: 2px;
    background: var(--accent);
}
.step-connect-line {
    display: none;
    position: absolute;
    top: 72px;
    left: 16%;
    right: 16%;
    border-top: 1px dashed rgba(0, 212, 192, 0.3);
    z-index: 0;
}
@media (min-width: 992px) {
    .step-connect-line { display: block; }
}
.step-item { position: relative; text-align: center; padding: 0 6px; z-index: 1; }
.step-num {
    width: 48px;
    height: 48px;
    margin: 0 auto 18px;
    border: 1.5px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: var(--accent);
    background: var(--bg-elevated);
    box-shadow: 0 0 0 4px rgba(0, 212, 192, 0.06);
}
.step-item h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; color: var(--text-hi); }
.step-item p { font-size: 14px; color: var(--text-mid); line-height: 1.75; margin-bottom: 0; }

/* ===== 奖励预览 ===== */
.reward-section { background: var(--bg-raised); border-top: 1px solid var(--border-main); border-bottom: 1px solid var(--border-main); }
.reward-pool-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.reward-pool-card:hover {
    border-color: rgba(255, 181, 60, 0.35);
    box-shadow: var(--shadow-card);
}
.reward-pool-cover {
    height: 130px;
    background: url("/assets/images/coverpic/cover-1.webp") center center / cover no-repeat;
}
.reward-pool-body { padding: 28px 24px; text-align: center; }
.reward-pool-label { font-size: 13px; color: var(--text-mid); letter-spacing: 1px; }
.reward-pool-number {
    font-size: 48px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin: 8px 0 12px;
}
.reward-pool-desc { font-size: 14px; color: var(--text-mid); line-height: 1.75; margin-bottom: 18px; }
.badge-cat {
    display: inline-block;
    padding: 4px 14px;
    background: rgba(0, 212, 192, 0.12);
    color: var(--primary);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
}
.reward-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    position: relative;
}
.reward-card:hover {
    border-color: rgba(255, 181, 60, 0.5);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-gold);
}
.reward-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: rgba(0, 212, 192, 0.12);
    color: var(--primary);
    margin-bottom: 18px;
}
.reward-title { font-size: 18px; font-weight: 700; color: var(--text-hi); margin-bottom: 6px; }
.reward-value { font-size: 32px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.reward-condition { font-size: 14px; color: var(--text-mid); margin: 8px 0 14px; }
.mt-md-4 { margin-top: 0; }
.mt-md-2 { margin-top: 0; }
@media (min-width: 768px) {
    .mt-md-4 { margin-top: 24px; }
    .mt-md-2 { margin-top: 12px; }
}

/* ===== 任务进度 ===== */
.task-panel {
    background: var(--bg-raised);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
}
.task-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.task-item:last-child { border-bottom: none; padding-bottom: 0; }
.task-status {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    font-weight: 700;
}
.task-status.done { background: rgba(255, 181, 60, 0.15); color: var(--accent); }
.task-status.progress { background: rgba(0, 212, 192, 0.12); color: var(--primary); }
.task-status.locked { background: rgba(255, 255, 255, 0.06); color: var(--text-low); }
.task-info { flex: 1; min-width: 0; }
.task-name { font-size: 15px; font-weight: 600; color: var(--text-hi); margin-bottom: 8px; }
.progress-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    overflow: hidden;
}
.progress-fill {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 999px;
    box-shadow: 0 0 8px rgba(255, 181, 60, 0.25);
}
.task-percent { font-size: 14px; font-weight: 700; color: var(--accent); flex-shrink: 0; }
.ring-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 32px;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.ring-wrap {
    position: relative;
    width: 160px;
    height: 160px;
    margin-bottom: 24px;
}
.ring-wrap svg { width: 100%; height: 100%; }
.ring-center {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.ring-number { font-size: 30px; font-weight: 800; color: var(--accent); line-height: 1.2; }
.ring-label { font-size: 12px; color: var(--text-mid); }
.ring-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 14px;
}
.ring-stats div { display: flex; flex-direction: column; align-items: center; }
.ring-stats strong { font-size: 24px; font-weight: 800; color: var(--text-hi); }
.ring-stats span { font-size: 13px; color: var(--text-mid); }
.ring-tip { font-size: 14px; color: var(--text-mid); max-width: 260px; line-height: 1.75; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-item {
    background: var(--bg-raised);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin-bottom: 12px;
    border-left: 2px solid transparent;
    transition: border-color 0.3s, background 0.3s;
}
.faq-item:has(.collapse.show) {
    border-left-color: var(--accent);
    background: var(--bg-elevated);
}
.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-hi);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    user-select: none;
}
.faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
    transition: transform 0.3s;
}
.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    background: var(--accent);
    border-radius: 2px;
}
.faq-icon::before { width: 16px; height: 2px; top: 9px; left: 2px; }
.faq-icon::after { width: 2px; height: 16px; top: 2px; left: 9px; }
.faq-item:has(.collapse.show) .faq-icon { transform: rotate(45deg); }
.faq-answer {
    font-size: 15px;
    color: var(--text-mid);
    line-height: 1.85;
    padding-top: 14px;
}

/* ===== CTA 横幅 ===== */
.cta-section { padding-top: 48px; }
.cta-banner {
    background: var(--bg-raised);
    border-radius: var(--radius-lg);
    padding: 48px 32px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-main);
}
.cta-banner::before {
    content: "";
    position: absolute;
    left: -60px;
    top: -60px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(0, 212, 192, 0.08), transparent 60%);
    pointer-events: none;
}
.cta-banner::after {
    content: "";
    position: absolute;
    right: -60px;
    bottom: -60px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(255, 181, 60, 0.08), transparent 60%);
    pointer-events: none;
}
.cta-banner-inner {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
}
.cta-copy { flex: 1 1 360px; }
.cta-copy h2 { font-size: 30px; font-weight: 800; line-height: 1.3; color: var(--text-hi); margin-bottom: 12px; }
.cta-copy p { color: var(--text-mid); font-size: 15px; margin-bottom: 28px; max-width: 440px; }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.cta-visual { flex: 0 0 240px; }
.cta-visual img {
    width: 240px;
    height: 160px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--border-main);
    box-shadow: var(--shadow-card);
}

/* ===== 最新资讯 ===== */
.news-section { background: var(--bg-void); }
.section-head-row { margin-bottom: 32px; }
.news-card {
    background: var(--bg-raised);
    border-radius: 12px;
    padding: 24px;
    transition: transform 0.25s, background 0.25s, box-shadow 0.25s;
    height: auto;
    border: 1px solid transparent;
}
.news-card:hover {
    background: var(--bg-elevated);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-color: var(--border-main);
}
@media (min-width: 768px) {
    .news-card-col:nth-child(even) .news-card { margin-top: 24px; }
}
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.news-date { font-size: 13px; font-weight: 600; color: var(--accent); }
.news-title { font-size: 18px; font-weight: 700; margin-bottom: 10px; line-height: 1.5; }
.news-title a { color: var(--text-hi); }
.news-title a:hover { color: var(--primary); }
.news-excerpt {
    font-size: 14px;
    color: var(--text-mid);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.read-more { font-size: 14px; font-weight: 600; color: var(--primary); }
.read-more:hover { text-decoration: underline; }
.empty-state {
    width: 100%;
    text-align: center;
    padding: 48px 24px;
    border: 1px dashed rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    color: var(--text-low);
    font-size: 14px;
    background: transparent;
}

/* ===== 页脚 ===== */
.footer {
    background: #080706;
    border-top: 1px solid rgba(0, 212, 192, 0.15);
    padding-top: 64px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 800;
    color: var(--text-hi);
    margin-bottom: 16px;
}
.footer-brand .brand-mark { width: 26px; height: 26px; }
.footer-brand .brand-mark::before { top: 6px; height: 7px; }
.footer-desc { font-size: 14px; color: var(--text-mid); max-width: 320px; line-height: 1.85; }
.footer-title { font-size: 16px; font-weight: 700; color: var(--text-hi); margin-bottom: 20px; }
.footer-link {
    display: block;
    color: #98A9B7;
    font-size: 14px;
    margin-bottom: 10px;
    transition: color 0.2s;
}
.footer-link:hover { color: var(--primary); }
.footer-note { font-size: 14px; color: var(--text-mid); margin-bottom: 10px; line-height: 1.7; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 20px 0;
    margin-top: 48px;
    text-align: center;
    font-size: 13px;
    color: var(--text-low);
}

/* ===== 响应式断点 ===== */
@media (max-width: 991.98px) {
    .main-nav .navbar-collapse {
        background: #0B0A08;
        padding: 16px 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        margin-top: 8px;
        border-radius: 0 0 12px 12px;
    }
    .main-nav .navbar-nav .nav-item + .nav-item {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }
    .main-nav .nav-link {
        padding: 12px 0 !important;
        font-size: 15px;
    }
    .main-nav .nav-link.active::after { display: none; }
    .main-nav .nav-link.active {
        color: var(--accent);
        background: rgba(255, 181, 60, 0.06);
        border-radius: 6px;
    }
    .btn-nav-cta {
        margin-left: 0;
        margin-top: 12px;
        width: 100%;
        text-align: center;
    }
    .hero { min-height: 600px; max-height: none; }
    .hero-title { font-size: 42px; }
    .hero-metric { padding: 0 20px; }
    .metric-value { font-size: 18px; }
    .steps-wrap { padding: 40px 24px; }
    .step-connect-line { display: none; }
}
@media (max-width: 767.98px) {
    .section { padding: 64px 0; }
    .hero { min-height: 560px; height: 100vh; }
    .hero-title { font-size: 34px; }
    .hero-subtitle { font-size: 16px; }
    .hero-actions .btn-main,
    .hero-actions .btn-ghost { width: 100%; max-width: 260px; }
    .hero-metrics { gap: 8px; margin-top: 36px; }
    .hero-metric { padding: 8px 16px; }
    .hero-metric + .hero-metric::before { display: none; }
    .section-title { font-size: 26px; }
    .section-desc { font-size: 15px; }
    .steps-wrap { padding: 36px 20px; }
    .step-num { width: 42px; height: 42px; font-size: 17px; }
    .reward-pool-number { font-size: 38px; }
    .reward-card { padding: 20px; }
    .task-panel { padding: 24px; }
    .ring-card { padding: 28px 20px; }
    .cta-banner { padding: 32px 20px; }
    .cta-copy h2 { font-size: 24px; }
    .cta-visual { flex-basis: 100%; }
    .cta-visual img { width: 100%; height: 140px; }
    .cta-actions .btn-main,
    .cta-actions .btn-ghost { width: 100%; max-width: 240px; }
    .footer { padding-top: 48px; }
    .footer-bottom { margin-top: 32px; }
    .utility-left { display: none; }
    .utility-inner { justify-content: flex-end; }
}
@media (max-width: 575.98px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .main-nav .navbar-brand { font-size: 15px; }
    .main-nav .navbar-brand .brand-mark { width: 26px; height: 26px; }
    .main-nav .navbar-brand .brand-mark::before { top: 6px; height: 7px; }
    .hero-badge { font-size: 12px; padding: 5px 14px; }
    .faq-item { padding: 18px 16px; }
    .faq-question { font-size: 15px; }
    .news-card { padding: 20px; }
    .section-head-row { flex-direction: column; align-items: flex-start !important; }
}

/* roulang page: article */
:root {
            --bg-void: #0B0A08;
            --bg-raised: #141210;
            --bg-elevated: #1C1915;
            --primary: #00D4C0;
            --accent: #FFB53C;
            --danger: #FF5E5B;
            --text-hi: #EAF2EF;
            --text-mid: #98A9B7;
            --text-low: #6A7A88;
            --border-main: rgba(0, 212, 192, 0.14);
            --border-strong: rgba(0, 212, 192, 0.35);
            --border-accent: rgba(255, 181, 60, 0.3);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 212, 192, 0.05);
            --shadow-glow-gold: 0 0 24px rgba(255, 181, 60, 0.2);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            background-color: var(--bg-void);
            color: var(--text-hi);
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            background-image: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(0, 212, 192, 0.04) 0%, rgba(255, 181, 60, 0.03) 50%, transparent 100%);
            background-repeat: no-repeat;
            min-height: 100vh;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #33e0cf;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .btn {
            border-radius: 8px;
            font-weight: 600;
            padding: 12px 28px;
            transition: all 0.25s ease;
            font-size: 15px;
        }
        .btn-primary-custom {
            background: var(--accent);
            color: #0B0A08;
            border: 1px solid transparent;
            font-weight: 700;
        }
        .btn-primary-custom:hover {
            background: #ffc95e;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-custom {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            font-weight: 600;
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #0B0A08;
            transform: translateY(-2px);
        }
        .btn-outline-custom:active {
            transform: translateY(0);
        }
        .utility-bar {
            height: 42px;
            background: #060504;
            border-bottom: 1px solid rgba(255, 181, 60, 0.12);
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-mid);
        }
        .utility-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .utility-link {
            color: var(--accent);
            font-size: 13px;
            margin-left: 8px;
        }
        .utility-link:hover {
            color: #FFD789;
        }
        .utility-divider {
            margin-left: 8px;
            color: rgba(255, 255, 255, 0.2);
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
        }
        .main-nav {
            background: rgba(11, 10, 8, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            min-height: 64px;
            border-bottom: 1px solid rgba(0, 212, 192, 0.1);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .brand-mark {
            width: 32px;
            height: 32px;
            border: 2px solid var(--accent);
            border-radius: 50%;
            position: relative;
            flex-shrink: 0;
        }
        .brand-mark::before {
            content: '';
            position: absolute;
            top: 6px;
            left: 6px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 10px rgba(255, 181, 60, 0.6);
        }
        .brand-mark::after {
            content: '';
            position: absolute;
            bottom: 6px;
            right: 5px;
            width: 12px;
            height: 2px;
            background: var(--primary);
            transform: rotate(45deg);
            transform-origin: right center;
        }
        .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-hi);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 181, 60, 0.3);
            padding: 6px 10px;
            background: transparent;
        }
        .navbar-toggler-icon {
            background-image: none;
            position: relative;
            width: 20px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
            vertical-align: middle;
        }
        .navbar-toggler-icon::before,
        .navbar-toggler-icon::after {
            content: '';
            position: absolute;
            left: 0;
            width: 20px;
            height: 2px;
            background: var(--accent);
        }
        .navbar-toggler-icon::before {
            top: -6px;
        }
        .navbar-toggler-icon::after {
            top: 6px;
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            font-size: 15px;
            color: var(--text-mid);
            padding: 8px 14px !important;
            position: relative;
            transition: color 0.2s ease;
            font-weight: 500;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--text-hi);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .btn-nav-cta {
            background: var(--accent);
            color: #0B0A08;
            font-size: 14px;
            font-weight: 700;
            padding: 8px 22px;
            border-radius: 8px;
            margin-left: 16px;
            transition: all 0.25s ease;
            display: inline-block;
            white-space: nowrap;
        }
        .btn-nav-cta:hover {
            background: #ffc95e;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .article-main {
            padding: 40px 0 80px;
        }
        .breadcrumb-wrap {
            font-size: 14px;
            color: var(--text-low);
            padding: 16px 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-wrap a {
            color: var(--primary);
            transition: color 0.2s;
        }
        .breadcrumb-wrap a:hover {
            color: #33e0cf;
        }
        .bc-sep {
            color: rgba(255, 255, 255, 0.2);
            margin: 0 2px;
        }
        .bc-current {
            color: var(--text-low);
            max-width: 260px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .article-header {
            padding: 24px 0 32px;
            border-bottom: 1px solid var(--border-main);
            margin-bottom: 40px;
        }
        .article-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-hi);
            margin-bottom: 20px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 14px;
            color: var(--text-mid);
        }
        .meta-date {
            color: var(--accent);
            font-weight: 600;
        }
        .meta-source {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .meta-source::before {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
        }
        .meta-category {
            display: inline-block;
            background: rgba(0, 212, 192, 0.12);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 3px 14px;
            border-radius: var(--radius-pill);
        }
        .article-content {
            max-width: 780px;
            margin: 0 auto;
        }
        .article-content p {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(234, 242, 239, 0.92);
            margin-bottom: 24px;
        }
        .article-content h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-hi);
            margin: 48px 0 20px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-main);
            position: relative;
        }
        .article-content h2::before {
            content: '';
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 64px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-hi);
            margin: 36px 0 16px;
        }
        .article-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-hi);
            margin: 28px 0 14px;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 24px;
            padding-left: 24px;
            color: rgba(234, 242, 239, 0.9);
            line-height: 1.9;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            background: var(--bg-raised);
            border-left: 3px solid var(--accent);
            border-radius: 0 8px 8px 0;
            padding: 24px 28px;
            margin: 32px 0;
            color: var(--text-mid);
            font-size: 16px;
            line-height: 1.75;
        }
        .article-content blockquote p {
            margin-bottom: 0;
            font-size: 16px;
            color: var(--text-mid);
        }
        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 24px 0;
        }
        .article-content pre {
            background: #0E0C0A;
            border: 1px solid var(--border-main);
            border-radius: 10px;
            padding: 20px;
            overflow-x: auto;
            margin: 24px 0;
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-hi);
        }
        .article-content code {
            font-family: "SF Mono", "Fira Code", Consolas, monospace;
            font-size: 0.92em;
            background: rgba(0, 212, 192, 0.08);
            padding: 2px 6px;
            border-radius: 4px;
            color: var(--primary);
        }
        .article-content pre code {
            background: transparent;
            padding: 0;
            color: var(--text-hi);
        }
        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: #33e0cf;
        }
        .article-content hr {
            border: none;
            border-top: 1px dashed var(--border-main);
            margin: 40px 0;
        }
        .article-not-found {
            text-align: center;
            padding: 80px 24px;
        }
        .article-not-found p {
            font-size: 20px;
            color: var(--text-mid);
            margin-bottom: 24px;
        }
        .article-not-found a {
            display: inline-block;
            background: var(--accent);
            color: #0B0A08;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 8px;
        }
        .article-tags {
            max-width: 780px;
            margin: 48px auto 0;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            padding-top: 32px;
            border-top: 1px solid var(--border-main);
        }
        .tag {
            display: inline-block;
            background: rgba(0, 212, 192, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .tag:hover {
            border-color: var(--border-strong);
            color: var(--primary);
            background: rgba(0, 212, 192, 0.15);
        }
        .post-navigation {
            max-width: 780px;
            margin: 40px auto 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .post-nav-card {
            display: block;
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: 12px;
            padding: 20px 24px;
            transition: all 0.25s ease;
            position: relative;
        }
        .post-nav-card:hover {
            border-color: rgba(255, 181, 60, 0.4);
            background: var(--bg-elevated);
            transform: translateY(-2px);
        }
        .post-nav-card.next {
            text-align: right;
        }
        .nav-label {
            font-size: 13px;
            color: var(--text-low);
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .nav-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-hi);
            display: block;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            line-height: 1.5;
        }
        .related-posts {
            max-width: 1200px;
            margin: 64px auto 0;
            padding-top: 48px;
            border-top: 1px solid var(--border-main);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 32px;
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
        }
        .related-card {
            display: block;
            background: var(--bg-raised);
            border-radius: 12px;
            overflow: hidden;
            height: 100%;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 181, 60, 0.5);
            box-shadow: var(--shadow-card);
        }
        .related-thumb {
            height: 160px;
            background-size: cover;
            background-position: center;
            background-color: #1C1915;
            position: relative;
        }
        .related-thumb::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 40px;
            background: linear-gradient(transparent, rgba(11, 10, 8, 0.6));
        }
        .related-body {
            padding: 20px;
        }
        .related-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-hi);
            line-height: 1.5;
            margin-bottom: 8px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .related-body p {
            font-size: 14px;
            color: var(--text-mid);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0;
        }
        .article-back {
            max-width: 780px;
            margin: 48px auto 0;
            text-align: right;
        }
        .back-link {
            font-size: 14px;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color 0.2s;
        }
        .back-link:hover {
            color: #33e0cf;
        }
        .footer {
            background: #080706;
            border-top: 1px solid rgba(0, 212, 192, 0.15);
            padding: 64px 0 0;
            margin-top: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-hi);
            margin-bottom: 16px;
        }
        .footer-desc {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-link {
            display: block;
            color: #98A9B7;
            font-size: 14px;
            padding: 5px 0;
            transition: color 0.2s;
            line-height: 1.6;
        }
        .footer-link:hover {
            color: var(--primary);
        }
        .footer-note {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 6px;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 16px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 13px;
            color: #5C6C7A;
        }
        .navbar-collapse {
            background: transparent;
        }
        @media (max-width: 992px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .main-nav {
                min-height: 56px;
            }
            .navbar-collapse {
                background: #0B0A08;
                border: 1px solid rgba(255, 255, 255, 0.05);
                border-radius: 12px;
                padding: 16px;
                margin-top: 10px;
                position: absolute;
                left: 16px;
                right: 16px;
                top: 100%;
                z-index: 1040;
                box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
            }
            .navbar-nav {
                gap: 0;
            }
            .nav-link {
                padding: 12px 0 !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-link.active::after {
                display: none;
            }
            .btn-nav-cta {
                margin-left: 0;
                margin-top: 16px;
                display: block;
                text-align: center;
            }
            .brand-text {
                font-size: 15px;
            }
            .article-title {
                font-size: 28px;
            }
            .post-navigation {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .utility-bar {
                display: none;
            }
            .article-main {
                padding: 24px 0 56px;
            }
            .article-header {
                padding: 16px 0 24px;
                margin-bottom: 28px;
            }
            .article-title {
                font-size: 24px;
            }
            .article-content p {
                font-size: 16px;
                line-height: 1.85;
            }
            .article-content h2 {
                font-size: 22px;
            }
            .article-content h3 {
                font-size: 19px;
            }
            .related-posts {
                margin-top: 40px;
                padding-top: 32px;
            }
            .section-title {
                font-size: 24px;
            }
            .footer {
                padding-top: 48px;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .breadcrumb-wrap {
                padding: 8px 0 16px;
                font-size: 13px;
            }
            .article-title {
                font-size: 22px;
            }
            .article-meta {
                gap: 10px;
                font-size: 13px;
            }
            .article-content p {
                font-size: 15.5px;
            }
            .article-tags {
                gap: 8px;
                padding-top: 24px;
                margin-top: 32px;
            }
            .related-thumb {
                height: 130px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-void: #0B0A08;
            --bg-raised: #141210;
            --bg-elevated: #1C1915;
            --primary: #00D4C0;
            --accent: #FFB53C;
            --danger: #FF5E5B;
            --text-hi: #EAF2EF;
            --text-mid: #98A9B7;
            --text-low: #6A7A88;
            --border-main: rgba(0, 212, 192, 0.14);
            --border-strong: rgba(0, 212, 192, 0.35);
            --border-accent: rgba(255, 181, 60, 0.3);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 212, 192, 0.05);
            --shadow-glow-gold: 0 0 24px rgba(255, 181, 60, 0.2);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background-color: var(--bg-void);
            color: var(--text-hi);
            line-height: 1.8;
            margin: 0;
            background-image: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 192, 0.04), transparent 60%), radial-gradient(ellipse at 80% 10%, rgba(255, 181, 60, 0.03), transparent 50%);
            background-attachment: fixed;
        }
        a {
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            vertical-align: middle;
        }
        button {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 16px;
            padding-right: 16px;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }
        }
        @media (min-width: 1400px) {
            .container {
                max-width: 1200px;
            }
        }

        /* Utility Bar */
        .utility-bar {
            height: 42px;
            background: #060504;
            border-bottom: 1px solid rgba(255, 181, 60, 0.12);
            font-size: 13px;
            color: var(--text-low);
        }
        .utility-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .utility-bar .utility-left {
            letter-spacing: 0.5px;
        }
        .utility-bar .utility-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .utility-link {
            color: var(--accent);
            transition: color 0.2s ease;
        }
        .utility-link:hover {
            color: #FFD789;
        }

        /* Header / Nav */
        .site-header {
            position: relative;
            z-index: 1030;
        }
        .main-nav {
            background: rgba(11, 10, 8, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            min-height: 64px;
            border-bottom: 1px solid rgba(255, 181, 60, 0.12);
            position: sticky;
            top: 0;
            z-index: 1030;
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-hi);
            font-size: 18px;
            font-weight: 800;
            letter-spacing: 0.3px;
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand:hover {
            color: var(--text-hi);
        }
        .brand-mark {
            width: 30px;
            height: 22px;
            border: 2px solid var(--accent);
            border-radius: 14px 8px 4px 4px;
            position: relative;
            flex-shrink: 0;
        }
        .brand-mark::before {
            content: '';
            position: absolute;
            width: 9px;
            height: 9px;
            border-top: 2px solid var(--accent);
            border-right: 2px solid var(--accent);
            right: -7px;
            top: 5px;
            transform: rotate(45deg);
        }
        .navbar-toggler {
            border: 1px solid rgba(255, 181, 60, 0.3);
            padding: 6px 10px;
            border-radius: 6px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 181, 60, 0.15);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23FFB53C' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-item {
            margin: 0 2px;
        }
        .nav-link {
            color: var(--text-mid);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link.active {
            color: var(--text-hi);
            font-weight: 700;
            border-bottom-color: var(--accent);
        }
        .btn-nav-cta {
            display: inline-block;
            background: var(--accent);
            color: #0B0A08;
            font-weight: 700;
            font-size: 14px;
            border-radius: 8px;
            padding: 9px 22px;
            margin-left: 16px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .btn-nav-cta:hover {
            background: #FFD789;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .btn-nav-cta:active {
            transform: translateY(0);
        }
        @media (max-width: 991.98px) {
            .main-nav {
                min-height: 56px;
            }
            .navbar-collapse {
                background: #0B0A08;
                border-top: 1px solid rgba(255, 255, 255, 0.05);
                margin-top: 8px;
                padding: 12px 4px 16px;
            }
            .nav-item {
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-link {
                display: block;
                padding: 12px 14px;
            }
            .nav-link.active {
                border-bottom-color: transparent;
                color: var(--accent);
            }
            .btn-nav-cta {
                margin: 16px 0 0 14px;
            }
        }

        /* Breadcrumb */
        .breadcrumb-custom {
            font-size: 14px;
            color: var(--text-low);
            padding: 18px 0 0;
            line-height: 1.6;
        }
        .breadcrumb-custom a {
            color: var(--primary);
        }
        .breadcrumb-custom a:hover {
            text-decoration: underline;
        }
        .breadcrumb-custom .sep {
            margin: 0 8px;
            color: var(--text-low);
        }
        .breadcrumb-custom .current {
            color: var(--text-low);
        }

        /* Category Hero */
        .category-hero {
            position: relative;
            min-height: 330px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            border-bottom: 1px solid var(--border-main);
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 10, 8, 0.75) 0%, rgba(11, 10, 8, 0.9) 100%);
        }
        .category-hero::after {
            content: '';
            position: absolute;
            left: 10%;
            bottom: 0;
            width: 220px;
            height: 120px;
            background: radial-gradient(circle, rgba(0, 212, 192, 0.1), transparent 70%);
            pointer-events: none;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .hero-tag {
            display: inline-block;
            border: 1px solid rgba(255, 181, 60, 0.4);
            border-radius: var(--radius-pill);
            padding: 5px 16px;
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 18px;
            background: rgba(255, 181, 60, 0.05);
        }
        .category-hero h1 {
            font-size: 42px;
            font-weight: 800;
            color: var(--text-hi);
            line-height: 1.2;
            margin-bottom: 14px;
        }
        .category-hero .subtitle {
            font-size: 16px;
            color: var(--text-mid);
            max-width: 660px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-hero-gold {
            display: inline-block;
            background: var(--accent);
            color: #0B0A08;
            border-radius: 8px;
            padding: 12px 28px;
            font-weight: 700;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .btn-hero-gold:hover {
            background: #FFD789;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .btn-hero-gold:active {
            transform: translateY(0);
        }
        .btn-hero-outline {
            display: inline-block;
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 8px;
            padding: 12px 28px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.2s ease;
        }
        .btn-hero-outline:hover {
            background: var(--primary);
            color: #0B0A08;
            transform: translateY(-2px);
        }
        .btn-hero-outline:active {
            transform: translateY(0);
        }
        @media (max-width: 767.98px) {
            .category-hero {
                min-height: 300px;
            }
            .category-hero h1 {
                font-size: 32px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-hero-gold,
            .btn-hero-outline {
                width: 100%;
                text-align: center;
            }
        }

        /* Section Common */
        .section {
            padding: 96px 0;
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-head .section-label {
            display: inline-block;
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-hi);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head .section-sub {
            color: var(--text-mid);
            font-size: 16px;
            max-width: 720px;
            line-height: 1.75;
        }
        @media (max-width: 767.98px) {
            .section {
                padding: 56px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 26px;
            }
        }

        /* Activity Grid */
        .activity-grid-section {
            position: relative;
        }
        .activity-card {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }
        .activity-card:hover {
            border-color: rgba(255, 181, 60, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow-gold);
        }
        .activity-card .card-thumb {
            height: 190px;
            overflow: hidden;
            position: relative;
            background-color: #1C1915;
        }
        .activity-card .card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }
        .activity-card:hover .card-thumb img {
            transform: scale(1.04);
        }
        .activity-card .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-tag {
            display: inline-block;
            background: rgba(0, 212, 192, 0.12);
            color: var(--primary);
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .activity-card h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card-time {
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-desc {
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 20px;
            flex: 1;
        }
        .btn-card-action {
            display: inline-block;
            background: var(--accent);
            color: #0B0A08;
            font-weight: 700;
            font-size: 14px;
            border-radius: 8px;
            padding: 9px 22px;
            border: 1px solid transparent;
            text-align: center;
            transition: all 0.2s ease;
            align-self: flex-start;
        }
        .btn-card-action:hover {
            background: #FFD789;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .btn-card-action:active {
            transform: translateY(0);
        }
        @media (min-width: 992px) {
            .offset-lg-top {
                margin-top: 24px;
            }
        }
        @media (max-width: 767.98px) {
            .activity-card .card-thumb {
                height: 160px;
            }
            .activity-card .card-body {
                padding: 20px;
            }
        }

        /* Stats */
        .stats-section {
            background: var(--bg-raised);
            border-top: 1px solid var(--border-main);
            border-bottom: 1px solid var(--border-main);
        }
        .stats-wrap {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            padding: 40px 24px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 12px 8px;
        }
        .stat-number {
            font-size: 44px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: 0.5px;
        }
        .stat-label {
            color: var(--text-mid);
            font-size: 14px;
            margin-top: 8px;
            line-height: 1.5;
        }
        @media (max-width: 767.98px) {
            .stats-wrap {
                grid-template-columns: repeat(2, 1fr);
                padding: 24px 16px;
                gap: 16px;
            }
            .stat-number {
                font-size: 34px;
            }
        }

        /* Steps */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-item {
            position: relative;
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }
        .step-item:hover {
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border: 1.5px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 18px;
            background: rgba(0, 212, 192, 0.04);
        }
        .step-item h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .step-item p {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }
        @media (min-width: 992px) {
            .step-col:not(:last-child) .step-item::after {
                content: '';
                position: absolute;
                top: 60px;
                right: -26px;
                width: 28px;
                border-top: 2px dashed var(--border-strong);
                z-index: 2;
            }
        }
        @media (max-width: 991.98px) {
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 575.98px) {
            .steps-row {
                grid-template-columns: 1fr;
            }
        }

        /* Scene */
        .scene-card {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }
        .scene-card:hover {
            border-color: rgba(255, 181, 60, 0.4);
            transform: translateY(-3px);
        }
        .scene-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(0, 212, 192, 0.1);
            border: 1px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }
        .scene-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 10px;
        }
        .scene-card p {
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.75;
            margin: 0;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: 10px;
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: border-color 0.3s ease;
        }
        .faq-item[aria-expanded="true"] {
            border-left: 2px solid var(--accent);
        }
        .faq-btn {
            width: 100%;
            background: transparent;
            border: none;
            color: var(--text-hi);
            font-size: 16px;
            font-weight: 600;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0;
            cursor: pointer;
            line-height: 1.5;
        }
        .faq-btn .icon {
            width: 24px;
            height: 24px;
            position: relative;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-btn .icon::before,
        .faq-btn .icon::after {
            content: '';
            position: absolute;
            background: var(--accent);
            border-radius: 2px;
            transition: transform 0.3s ease;
        }
        .faq-btn .icon::before {
            width: 14px;
            height: 2px;
            top: 11px;
            left: 5px;
        }
        .faq-btn .icon::after {
            width: 2px;
            height: 14px;
            top: 5px;
            left: 11px;
        }
        .faq-btn[aria-expanded="true"] .icon::after {
            transform: scaleY(0);
        }
        .faq-body {
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.75;
            padding-top: 16px;
        }

        /* CTA Banner */
        .cta-section {
            padding-top: 40px;
        }
        .cta-banner {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            left: -80px;
            top: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 212, 192, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            right: -80px;
            bottom: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 181, 60, 0.08), transparent 70%);
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 260px;
        }
        .cta-content h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .cta-content p {
            color: var(--text-mid);
            font-size: 16px;
            margin: 0;
            line-height: 1.75;
        }
        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-cta-gold {
            display: inline-block;
            background: var(--accent);
            color: #0B0A08;
            border-radius: 8px;
            padding: 13px 30px;
            font-weight: 700;
            font-size: 15px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }
        .btn-cta-gold:hover {
            background: #FFD789;
            color: #0B0A08;
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }
        .btn-cta-outline {
            display: inline-block;
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: 8px;
            padding: 13px 30px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.2s ease;
        }
        .btn-cta-outline:hover {
            background: var(--primary);
            color: #0B0A08;
            transform: translateY(-2px);
        }
        @media (max-width: 767.98px) {
            .cta-banner {
                padding: 32px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-content h3 {
                font-size: 24px;
            }
            .cta-actions {
                width: 100%;
            }
            .cta-actions .btn-cta-gold,
            .cta-actions .btn-cta-outline {
                flex: 1;
                text-align: center;
            }
        }

        /* Footer */
        .footer {
            background: #080706;
            border-top: 1px solid rgba(0, 212, 192, 0.15);
            padding-top: 64px;
            margin-top: 96px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-hi);
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .footer-brand .brand-mark {
            width: 26px;
            height: 18px;
            border-width: 2px;
        }
        .footer-desc {
            color: var(--text-low);
            font-size: 14px;
            line-height: 1.75;
            max-width: 320px;
            margin-bottom: 0;
        }
        .footer-title {
            color: var(--text-hi);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            color: #98A9B7;
            font-size: 14px;
            padding: 5px 0;
            transition: color 0.2s ease;
        }
        .footer-link:hover {
            color: var(--primary);
        }
        .footer-note {
            color: var(--text-low);
            font-size: 13px;
            margin-bottom: 8px;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0 22px;
            color: #5C6C7A;
            font-size: 13px;
            text-align: center;
            margin-top: 48px;
            background: #060504;
        }
        @media (max-width: 767.98px) {
            .footer {
                padding-top: 44px;
                margin-top: 56px;
            }
            .footer-bottom {
                margin-top: 32px;
            }
        }

/* roulang page: category2 */
:root {
        --bg-void: #0B0A08;
        --bg-raised: #141210;
        --bg-elevated: #1C1915;
        --primary: #00D4C0;
        --accent: #FFB53C;
        --danger: #FF5E5B;
        --text-hi: #EAF2EF;
        --text-mid: #98A9B7;
        --text-low: #6A7A88;
        --border-main: rgba(0,212,192,0.14);
        --border-strong: rgba(0,212,192,0.35);
        --border-accent: rgba(255,181,60,0.3);
        --radius-sm: 6px;
        --radius-md: 10px;
        --radius-lg: 16px;
        --radius-pill: 999px;
        --shadow-card: 0 8px 24px rgba(0,0,0,0.35), 0 0 0 1px rgba(0,212,192,0.05);
        --shadow-glow-gold: 0 0 24px rgba(255,181,60,0.2);
        --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background-color: var(--bg-void);
        color: var(--text-hi);
        line-height: 1.8;
        font-size: 16px;
        background-image:
            radial-gradient(ellipse at 50% 0%, rgba(0,212,192,0.04) 0%, transparent 60%),
            radial-gradient(ellipse at 85% 8%, rgba(255,181,60,0.03) 0%, transparent 50%);
        background-repeat: no-repeat;
        -webkit-font-smoothing: antialiased;
    }

    a {
        text-decoration: none;
        color: inherit;
        transition: color 0.25s ease, background 0.25s ease, border 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
    }
    a:focus-visible,
    button:focus-visible {
        outline: 2px solid var(--primary);
        outline-offset: 2px;
    }

    img {
        max-width: 100%;
        height: auto;
    }
    ul, ol {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .container {
        max-width: 1200px;
        padding-left: 24px;
        padding-right: 24px;
    }
    @media (max-width: 576px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    /* ===== 顶部信息条 ===== */
    .utility-bar {
        height: 42px;
        background: #060504;
        border-bottom: 1px solid rgba(255,181,60,0.12);
        display: flex;
        align-items: center;
        font-size: 13px;
    }
    .utility-bar .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .utility-bar-left {
        color: #6A7A88;
    }
    .utility-bar-right {
        display: flex;
        align-items: center;
        gap: 20px;
    }
    .utility-bar-right .util-status {
        color: #6A7A88;
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .utility-bar-right .util-status i {
        color: var(--primary);
        font-size: 10px;
    }
    .utility-bar-right .util-link {
        color: var(--accent);
        font-weight: 600;
    }
    .utility-bar-right .util-link:hover {
        color: #FFD789;
    }

    /* ===== 主导航 ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 1030;
    }
    .main-nav {
        background: rgba(11,10,8,0.94);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        min-height: 64px;
        padding: 0;
        border-bottom: 1px solid rgba(255,181,60,0.08);
    }
    .main-nav .container {
        display: flex;
        align-items: center;
        min-height: 64px;
    }
    .navbar-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 800;
        color: var(--text-hi);
        letter-spacing: 0.5px;
    }
    .navbar-brand:hover {
        color: var(--text-hi);
    }
    .brand-mark {
        width: 36px;
        height: 36px;
        display: inline-block;
        position: relative;
        border: 2px solid var(--accent);
        border-radius: 50% 50% 42% 42%;
        flex-shrink: 0;
        background: radial-gradient(circle at 30% 30%, rgba(255,181,60,0.25), transparent 60%);
    }
    .brand-mark::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 12px;
        height: 6px;
        border: 1.5px solid var(--accent);
        border-top: none;
        border-radius: 0 0 8px 8px;
    }
    .brand-mark::after {
        content: '';
        position: absolute;
        top: 17px;
        left: 50%;
        transform: translateX(-50%);
        width: 4px;
        height: 4px;
        background: var(--accent);
        border-radius: 50%;
    }

    .navbar-toggler {
        border: 1px solid rgba(255,181,60,0.3);
        border-radius: 8px;
        padding: 6px 10px;
    }
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23FFB53C' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
    }

    .navbar-nav .nav-link {
        font-size: 15px;
        color: var(--text-mid);
        padding: 10px 16px;
        font-weight: 500;
        border-bottom: 2px solid transparent;
        transition: color 0.25s ease, border-color 0.25s ease;
    }
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-link:focus {
        color: var(--primary);
    }
    .navbar-nav .nav-link.active {
        color: var(--text-hi);
        border-bottom-color: var(--accent);
        font-weight: 700;
    }

    .btn-nav-cta {
        background: var(--accent);
        color: #0B0A08;
        padding: 8px 22px;
        border-radius: 8px;
        font-weight: 700;
        font-size: 15px;
        margin-left: 24px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        border: 1px solid transparent;
        transition: all 0.25s ease;
    }
    .btn-nav-cta:hover {
        background: #FFD789;
        color: #0B0A08;
        transform: translateY(-2px);
        box-shadow: var(--shadow-glow-gold);
    }
    .btn-nav-cta:active {
        transform: translateY(0);
    }

    @media (max-width: 991.98px) {
        .main-nav,
        .main-nav .container {
            min-height: 56px;
        }
        .navbar-collapse {
            background: #0B0A08;
            padding: 12px 16px 20px;
            border-top: 1px solid rgba(255,255,255,0.05);
            margin-top: 8px;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
        }
        .navbar-nav .nav-link {
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding: 12px 8px;
        }
        .navbar-nav .nav-link.active {
            border-bottom-color: var(--accent);
        }
        .btn-nav-cta {
            margin-left: 0;
            margin-top: 14px;
            justify-content: center;
            width: 100%;
        }
    }

    /* ===== 分类页 Hero ===== */
    .category-hero {
        min-height: 340px;
        display: flex;
        align-items: center;
        position: relative;
        background: linear-gradient(rgba(11,10,8,0.72) 0%, rgba(11,10,8,0.88) 100%), url('/assets/images/backpic/back-2.png');
        background-size: cover;
        background-position: center 20%;
        padding: 72px 0 64px;
        overflow: hidden;
    }
    .category-hero::before {
        content: '';
        position: absolute;
        top: -60px;
        right: -60px;
        width: 260px;
        height: 260px;
        background: radial-gradient(circle, rgba(255,181,60,0.12), transparent 65%);
        border-radius: 50%;
        pointer-events: none;
    }
    .category-hero::after {
        content: '';
        position: absolute;
        bottom: -80px;
        left: -40px;
        width: 280px;
        height: 280px;
        background: radial-gradient(circle, rgba(0,212,192,0.08), transparent 70%);
        border-radius: 50%;
        pointer-events: none;
    }
    .hero-tag {
        display: inline-block;
        border: 1px solid rgba(255,181,60,0.4);
        border-radius: var(--radius-pill);
        padding: 5px 16px;
        font-size: 13px;
        color: var(--accent);
        letter-spacing: 1px;
        background: rgba(11,10,8,0.6);
        margin-bottom: 18px;
    }
    .category-hero h1 {
        font-size: 44px;
        font-weight: 800;
        color: var(--text-hi);
        line-height: 1.2;
        margin-bottom: 14px;
        letter-spacing: 0.5px;
    }
    .category-hero .hero-sub {
        font-size: 17px;
        color: var(--text-mid);
        max-width: 560px;
        margin-bottom: 0;
        line-height: 1.8;
    }
    @media (max-width: 768px) {
        .category-hero {
            min-height: 320px;
            padding: 56px 0 48px;
        }
        .category-hero h1 {
            font-size: 34px;
        }
        .category-hero .hero-sub {
            font-size: 15px;
        }
    }

    /* ===== 通用板块 ===== */
    .section-download {
        padding: 88px 0 72px;
        background: var(--bg-void);
    }
    .section-features {
        padding: 72px 0;
        background: var(--bg-raised);
    }
    .section-flow {
        padding: 88px 0 72px;
        background: var(--bg-void);
    }
    .section-security {
        padding: 72px 0;
        background: var(--bg-raised);
    }
    .section-faq {
        padding: 88px 0 72px;
        background: var(--bg-void);
    }
    .section-cta {
        padding: 64px 0 88px;
        background: var(--bg-void);
    }

    .section-head {
        margin-bottom: 40px;
    }
    .section-head .sec-badge {
        display: inline-block;
        background: rgba(0,212,192,0.12);
        color: var(--primary);
        font-size: 13px;
        font-weight: 500;
        border-radius: var(--radius-pill);
        padding: 4px 14px;
        margin-bottom: 12px;
        letter-spacing: 0.5px;
    }
    .section-head h2 {
        font-size: 32px;
        font-weight: 700;
        color: var(--text-hi);
        line-height: 1.3;
        margin-bottom: 10px;
    }
    .section-head p {
        color: var(--text-mid);
        font-size: 16px;
        margin-bottom: 0;
        max-width: 620px;
    }

    @media (max-width: 768px) {
        .section-download, .section-flow, .section-faq {
            padding: 56px 0 48px;
        }
        .section-features, .section-security {
            padding: 48px 0;
        }
        .section-head h2 {
            font-size: 26px;
        }
    }

    /* ===== 下载列表 ===== */
    .download-list .row {
        align-items: flex-start;
    }
    .download-list .row > [class*="col-"]:nth-child(even) {
        margin-top: 24px;
    }
    @media (max-width: 991.98px) {
        .download-list .row > [class*="col-"]:nth-child(even) {
            margin-top: 0;
        }
    }

    .download-item {
        background: var(--bg-raised);
        border: 1px solid var(--border-main);
        border-radius: var(--radius-lg);
        padding: 28px;
        display: flex;
        align-items: center;
        gap: 20px;
        transition: all 0.3s ease;
        height: 100%;
        position: relative;
        overflow: hidden;
    }
    .download-item::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 3px;
        height: 100%;
        background: var(--primary);
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .download-item:hover {
        border-color: rgba(255,181,60,0.4);
        background: var(--bg-elevated);
        transform: translateY(-4px);
        box-shadow: var(--shadow-card), 0 0 20px rgba(255,181,60,0.06);
    }
    .download-item:hover::before {
        opacity: 1;
    }

    .download-icon {
        width: 52px;
        height: 52px;
        border-radius: var(--radius-md);
        background: rgba(0,212,192,0.1);
        border: 1px solid var(--border-main);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        color: var(--primary);
        flex-shrink: 0;
        transition: all 0.3s ease;
    }
    .download-item:hover .download-icon {
        background: rgba(255,181,60,0.12);
        border-color: var(--border-accent);
        color: var(--accent);
    }

    .download-info {
        flex: 1;
        min-width: 0;
    }
    .download-info h3 {
        font-size: 18px;
        font-weight: 700;
        margin-bottom: 4px;
        color: var(--text-hi);
    }
    .download-meta {
        font-size: 14px;
        color: var(--text-mid);
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 6px;
    }
    .download-meta .version {
        color: var(--accent);
        font-weight: 600;
    }
    .download-meta .dot {
        color: var(--text-low);
    }
    .download-meta .badge-size {
        display: inline-block;
        background: rgba(255,255,255,0.06);
        border-radius: var(--radius-pill);
        padding: 2px 10px;
        font-size: 12px;
        color: var(--text-mid);
    }
    .download-compat {
        font-size: 13px;
        color: var(--text-low);
        line-height: 1.5;
        margin-bottom: 0;
    }

    .btn-download-ghost {
        border: 1.5px solid var(--accent);
        color: var(--accent);
        border-radius: 8px;
        padding: 8px 24px;
        font-weight: 600;
        font-size: 14px;
        white-space: nowrap;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: transparent;
        transition: all 0.25s ease;
        flex-shrink: 0;
    }
    .btn-download-ghost:hover {
        background: var(--accent);
        color: #0B0A08;
        transform: translateY(-2px);
        box-shadow: var(--shadow-glow-gold);
    }
    .btn-download-ghost:active {
        transform: translateY(0);
    }

    @media (max-width: 576px) {
        .download-item {
            flex-direction: column;
            align-items: flex-start;
            padding: 20px;
        }
        .btn-download-ghost {
            width: 100%;
            justify-content: center;
        }
    }

    /* ===== 特性卡 ===== */
    .feature-card {
        background: var(--bg-void);
        border: 1px solid var(--border-main);
        border-radius: var(--radius-md);
        padding: 28px 24px;
        height: 100%;
        transition: all 0.3s ease;
    }
    .feature-card:hover {
        border-color: var(--border-accent);
        transform: translateY(-3px);
        box-shadow: var(--shadow-glow-gold);
    }
    .feature-card .feature-icon {
        width: 44px;
        height: 44px;
        border-radius: var(--radius-sm);
        background: rgba(255,181,60,0.1);
        border: 1px solid var(--border-accent);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 19px;
        color: var(--accent);
        margin-bottom: 16px;
    }
    .feature-card h3 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 8px;
    }
    .feature-card p {
        font-size: 14px;
        color: var(--text-mid);
        margin-bottom: 0;
        line-height: 1.7;
    }

    /* ===== 流程时间线 ===== */
    .flow-step {
        position: relative;
        padding: 24px 20px 24px 0;
        border-left: 2px solid rgba(0,212,192,0.2);
        margin-left: 16px;
        padding-left: 32px;
    }
    .flow-step::before {
        content: '';
        position: absolute;
        left: -7px;
        top: 30px;
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: var(--bg-void);
        border: 2px solid var(--primary);
    }
    .flow-step .step-num {
        font-size: 15px;
        font-weight: 800;
        color: var(--accent);
        letter-spacing: 1px;
        margin-bottom: 6px;
    }
    .flow-step h3 {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 6px;
    }
    .flow-step p {
        font-size: 14px;
        color: var(--text-mid);
        margin-bottom: 0;
        line-height: 1.7;
    }
    @media (max-width: 768px) {
        .flow-step {
            padding-left: 24px;
            margin-left: 10px;
        }
    }

    /* ===== 安全指南 ===== */
    .security-panel {
        background: var(--bg-void);
        border: 1px solid var(--border-main);
        border-radius: var(--radius-lg);
        padding: 32px;
    }
    .security-item {
        display: flex;
        gap: 16px;
        align-items: flex-start;
        padding: 18px 0;
        border-bottom: 1px solid rgba(255,255,255,0.04);
    }
    .security-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }
    .security-item:first-child {
        padding-top: 0;
    }
    .security-item .sec-icon {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
        background: rgba(0,212,192,0.1);
        border: 1px solid var(--border-main);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--primary);
        font-size: 17px;
        flex-shrink: 0;
    }
    .security-item h4 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 4px;
    }
    .security-item p {
        font-size: 13px;
        color: var(--text-mid);
        margin-bottom: 0;
        line-height: 1.6;
    }

    .security-image {
        border-radius: var(--radius-lg);
        overflow: hidden;
        height: 100%;
        min-height: 260px;
        background: url('/assets/images/coverpic/cover-5.png') center/cover no-repeat;
        position: relative;
    }
    .security-image::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(145deg, rgba(11,10,8,0.1) 0%, rgba(11,10,8,0.55) 100%);
    }
    .security-tip-badge {
        display: block;
        text-align: center;
        background: rgba(0,212,192,0.08);
        border: 1px solid var(--border-main);
        color: var(--text-mid);
        font-size: 13px;
        border-radius: var(--radius-pill);
        padding: 8px 20px;
        margin-top: 24px;
    }

    @media (max-width: 768px) {
        .security-image {
            min-height: 180px;
            margin-bottom: 24px;
        }
        .security-panel {
            padding: 24px;
        }
    }

    /* ===== FAQ ===== */
    .faq-item {
        background: var(--bg-raised);
        border: 1px solid var(--border-main);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        overflow: hidden;
        transition: border-color 0.3s ease;
    }
    .faq-item.active {
        border-left: 3px solid var(--accent);
        border-left-style: solid;
        border-left-width: 3px;
        border-color: var(--border-accent);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 20px 24px;
        cursor: pointer;
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        font-size: 16px;
        font-weight: 600;
        color: var(--text-hi);
        font-family: inherit;
        transition: background 0.25s ease;
    }
    .faq-question:hover {
        background: rgba(255,255,255,0.02);
    }
    .faq-icon {
        width: 24px;
        height: 24px;
        position: relative;
        flex-shrink: 0;
    }
    .faq-icon::before,
    .faq-icon::after {
        content: '';
        position: absolute;
        background: var(--accent);
        border-radius: 2px;
        transition: transform 0.3s ease;
    }
    .faq-icon::before {
        width: 14px;
        height: 2px;
        top: 11px;
        left: 5px;
    }
    .faq-icon::after {
        width: 2px;
        height: 14px;
        top: 5px;
        left: 11px;
    }
    .faq-item.active .faq-icon::after {
        transform: scaleY(0);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
    }
    .faq-answer-inner {
        padding: 0 24px 20px;
        font-size: 15px;
        color: var(--text-mid);
        line-height: 1.75;
        border-top: 1px solid rgba(255,255,255,0.04);
        margin: 0 24px;
        padding: 16px 0 20px;
        padding-left: 0;
        padding-right: 0;
    }

    /* ===== CTA ===== */
    .cta-banner {
        background: var(--bg-raised);
        border: 1px solid var(--border-main);
        border-radius: var(--radius-lg);
        padding: 48px 48px;
        position: relative;
        overflow: hidden;
    }
    .cta-banner::before {
        content: '';
        position: absolute;
        top: -80px;
        left: -60px;
        width: 240px;
        height: 240px;
        background: radial-gradient(circle, rgba(0,212,192,0.08), transparent 65%);
        border-radius: 50%;
        pointer-events: none;
    }
    .cta-banner::after {
        content: '';
        position: absolute;
        bottom: -100px;
        right: -40px;
        width: 260px;
        height: 260px;
        background: radial-gradient(circle, rgba(255,181,60,0.07), transparent 65%);
        border-radius: 50%;
        pointer-events: none;
    }
    .cta-banner h2 {
        font-size: 32px;
        font-weight: 800;
        color: var(--text-hi);
        margin-bottom: 10px;
        position: relative;
        z-index: 1;
    }
    .cta-banner p {
        color: var(--text-mid);
        font-size: 16px;
        margin-bottom: 0;
        position: relative;
        z-index: 1;
    }
    .cta-buttons {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        justify-content: flex-end;
        position: relative;
        z-index: 1;
    }

    .btn-primary-gold {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--accent);
        color: #0B0A08;
        padding: 14px 32px;
        border-radius: 8px;
        font-weight: 700;
        font-size: 15px;
        border: 1px solid transparent;
        transition: all 0.25s ease;
        line-height: 1.4;
    }
    .btn-primary-gold:hover {
        background: #FFD789;
        transform: translateY(-2px);
        color: #0B0A08;
        box-shadow: var(--shadow-glow-gold);
    }
    .btn-primary-gold:active {
        transform: translateY(0);
    }

    .btn-outline-cyan {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: transparent;
        border: 1.5px solid var(--primary);
        color: var(--primary);
        border-radius: 8px;
        padding: 14px 32px;
        font-weight: 600;
        font-size: 15px;
        transition: all 0.25s ease;
        line-height: 1.4;
    }
    .btn-outline-cyan:hover {
        background: var(--primary);
        color: #0B0A08;
        transform: translateY(-2px);
    }
    .btn-outline-cyan:active {
        transform: translateY(0);
    }

    @media (max-width: 768px) {
        .cta-banner {
            padding: 32px 20px;
            text-align: center;
        }
        .cta-banner h2 {
            font-size: 26px;
        }
        .cta-buttons {
            justify-content: center;
            margin-top: 20px;
        }
        .btn-primary-gold,
        .btn-outline-cyan {
            width: 100%;
            justify-content: center;
        }
    }

    /* ===== 页脚 ===== */
    .footer {
        background: #080706;
        border-top: 1px solid rgba(0,212,192,0.15);
        padding: 72px 0 0;
    }
    .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 800;
        color: var(--text-hi);
        margin-bottom: 16px;
    }
    .footer-desc {
        font-size: 14px;
        color: var(--text-mid);
        line-height: 1.75;
        margin-bottom: 0;
        max-width: 300px;
    }
    .footer-title {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-hi);
        margin-bottom: 16px;
    }
    .footer-link {
        display: block;
        font-size: 14px;
        color: #98A9B7;
        padding: 5px 0;
        transition: color 0.25s ease, padding-left 0.25s ease;
    }
    .footer-link:hover {
        color: var(--primary);
        padding-left: 4px;
    }
    .footer-note {
        font-size: 14px;
        color: var(--text-mid);
        margin-bottom: 8px;
        line-height: 1.6;
    }
    .footer-bottom {
        border-top: 1px solid rgba(255,255,255,0.05);
        margin-top: 48px;
        padding: 20px 0;
        text-align: center;
        font-size: 13px;
        color: #5C6C7A;
        line-height: 1.5;
    }
    @media (max-width: 768px) {
        .footer {
            padding-top: 48px;
        }
        .footer-bottom {
            margin-top: 32px;
        }
    }

/* roulang page: category3 */
:root {
            --bg-void: #0B0A08;
            --bg-raised: #141210;
            --bg-elevated: #1C1915;
            --primary: #00D4C0;
            --accent: #FFB53C;
            --danger: #FF5E5B;
            --text-hi: #EAF2EF;
            --text-mid: #98A9B7;
            --text-low: #6A7A88;
            --border-main: rgba(0, 212, 192, 0.14);
            --border-strong: rgba(0, 212, 192, 0.35);
            --border-accent: rgba(255, 181, 60, 0.3);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(0, 212, 192, 0.05);
            --shadow-glow-gold: 0 0 24px rgba(255, 181, 60, 0.2);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-hi);
            background-color: var(--bg-void);
            background-image:
                radial-gradient(ellipse at 50% 0%, rgba(0, 212, 192, 0.045) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 8%, rgba(255, 181, 60, 0.035) 0%, transparent 45%);
            background-attachment: fixed;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.2s ease;
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== 顶部信息条 ===== */
        .utility-bar {
            background: #060504;
            border-bottom: 1px solid rgba(255, 181, 60, 0.12);
            min-height: 42px;
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-mid);
        }

        .utility-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .utility-text {
            color: #8A9AA8;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .utility-links {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .utility-links a {
            color: var(--accent);
            font-weight: 500;
            font-size: 13px;
        }

        .utility-links a:hover {
            color: #FFD789;
        }

        .utility-divider {
            color: rgba(255, 255, 255, 0.15);
        }

        /* ===== 主导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(11, 10, 8, 0.94);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-main);
        }

        .main-nav {
            min-height: 64px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .brand-mark {
            width: 28px;
            height: 28px;
            position: relative;
            flex-shrink: 0;
        }

        .brand-mark::before {
            content: '';
            position: absolute;
            top: 4px;
            left: 2px;
            width: 18px;
            height: 10px;
            border: 2px solid var(--accent);
            border-radius: 50% 50% 0 0;
            transform: rotate(-8deg);
        }

        .brand-mark::after {
            content: '';
            position: absolute;
            right: 0;
            top: 11px;
            width: 10px;
            height: 10px;
            border-top: 2px solid var(--accent);
            border-right: 2px solid var(--accent);
            transform: skewY(35deg);
            border-radius: 0 2px 0 0;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 800;
            color: #EAF2EF;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-mid);
            padding: 20px 14px;
            position: relative;
            transition: color 0.25s ease;
        }

        .navbar-nav .nav-link:hover {
            color: var(--primary);
        }

        .navbar-nav .nav-link.active {
            color: var(--text-hi);
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 8px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .btn-nav-cta {
            display: inline-block;
            background: var(--accent);
            color: var(--bg-void);
            font-weight: 700;
            font-size: 14px;
            border-radius: 8px;
            padding: 9px 22px;
            margin-left: 18px;
            white-space: nowrap;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .btn-nav-cta:hover {
            background: #ffc55e;
            color: var(--bg-void);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }

        .navbar-toggler {
            border: 1px solid var(--border-accent);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 181, 60, 0.2);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #080706;
            border-top: 1px solid rgba(0, 212, 192, 0.15);
            padding-top: 48px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-brand .brand-mark {
            width: 24px;
            height: 24px;
        }

        .footer-brand span:last-child {
            font-size: 16px;
            font-weight: 800;
            color: var(--text-hi);
        }

        .footer-desc {
            color: var(--text-mid);
            font-size: 14px;
            line-height: 1.7;
            max-width: 280px;
            margin-bottom: 8px;
        }

        .footer-title {
            color: var(--text-hi);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 14px;
            position: relative;
            padding-bottom: 6px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
        }

        .footer-link {
            display: block;
            color: #98A9B7;
            font-size: 14px;
            margin-bottom: 8px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

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

        .footer-note {
            color: #6A7A88;
            font-size: 13px;
            margin-bottom: 6px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            margin-top: 36px;
            padding: 16px 0;
            text-align: center;
            color: #5C6C7A;
            font-size: 13px;
        }

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

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 12px;
            letter-spacing: 0.8px;
        }

        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-hi);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-mid);
            font-size: 16px;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 按钮 ===== */
        .btn-gold {
            display: inline-block;
            background: var(--accent);
            color: var(--bg-void);
            font-weight: 700;
            font-size: 15px;
            border-radius: 8px;
            padding: 12px 28px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-gold:hover {
            background: #ffc55e;
            color: var(--bg-void);
            transform: translateY(-2px);
            box-shadow: var(--shadow-glow-gold);
        }

        .btn-gold:active {
            transform: translateY(0);
        }

        .btn-outline {
            display: inline-block;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            padding: 12px 28px;
            border: 1.5px solid var(--primary);
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline:hover {
            background: var(--primary);
            color: var(--bg-void);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .btn-sm-gold {
            display: inline-block;
            background: var(--accent);
            color: var(--bg-void);
            font-weight: 700;
            font-size: 13px;
            border-radius: 6px;
            padding: 8px 20px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-sm-gold:hover {
            background: #ffc55e;
            color: var(--bg-void);
            box-shadow: var(--shadow-glow-gold);
            transform: translateY(-1px);
        }

        /* ===== 分类页窄Hero ===== */
        .page-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            padding: 64px 0;
            overflow: hidden;
            background-color: var(--bg-void);
        }

        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 35%;
            opacity: 0.35;
        }

        .page-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 10, 8, 0.5) 0%, rgba(11, 10, 8, 0.72) 60%, var(--bg-void) 100%);
        }

        .page-hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-block;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid var(--border-accent);
            border-radius: var(--radius-pill);
            padding: 5px 16px;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text-hi);
            margin-bottom: 14px;
        }

        .page-hero .hero-desc {
            font-size: 16px;
            color: var(--text-mid);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            padding-top: 16px;
        }

        .breadcrumb {
            margin-bottom: 0;
            font-size: 14px;
        }

        .breadcrumb-item a {
            color: var(--primary);
        }

        .breadcrumb-item.active {
            color: var(--text-low);
        }

        .breadcrumb-item+.breadcrumb-item::before {
            content: " / ";
            color: rgba(255, 255, 255, 0.25);
        }

        /* ===== 数据统计条 ===== */
        .guide-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }

        .stat-card {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-md);
            padding: 20px 16px;
            text-align: center;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .stat-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-3px);
        }

        .stat-card strong {
            display: block;
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .stat-card span {
            font-size: 13px;
            color: var(--text-mid);
        }

        /* ===== 步骤时间线 ===== */
        .steps-section {
            background: var(--bg-void);
        }

        .steps-timeline {
            max-width: 760px;
            margin: 0 auto;
        }

        .guide-step-item {
            display: flex;
            gap: 24px;
            position: relative;
            padding-bottom: 34px;
        }

        .guide-step-item::before {
            content: '';
            position: absolute;
            left: 23px;
            top: 54px;
            bottom: 0;
            width: 1px;
            background: rgba(0, 212, 192, 0.25);
        }

        .guide-step-item:last-child {
            padding-bottom: 0;
        }

        .guide-step-item:last-child::before {
            display: none;
        }

        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            border: 1.5px solid var(--primary);
            background: var(--bg-void);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: var(--accent);
            flex-shrink: 0;
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 4px rgba(0, 0, 0, 0.3);
        }

        .step-box {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            flex: 1;
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .step-box:hover {
            border-color: var(--border-accent);
            transform: translateX(4px);
        }

        .step-box h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 8px;
        }

        .step-box p {
            font-size: 15px;
            color: var(--text-mid);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-section {
            background: var(--bg-raised);
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-md);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left: 2px solid var(--accent);
        }

        .accordion-button {
            background: var(--bg-raised);
            color: var(--text-hi);
            font-weight: 600;
            font-size: 16px;
            padding: 20px 24px;
            position: relative;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .accordion-button:not(.collapsed) {
            background: var(--bg-raised);
            color: var(--text-hi);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 181, 60, 0.12);
            border-radius: var(--radius-md);
        }

        .accordion-button::after {
            display: none !important;
        }

        .faq-icon {
            width: 20px;
            height: 20px;
            position: relative;
            flex-shrink: 0;
            margin-left: auto;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--accent);
            transition: transform 0.3s ease;
        }

        .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }

        .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
        }

        .accordion-button:not(.collapsed) .faq-icon::after {
            transform: scaleY(0);
        }

        .accordion-body {
            background: var(--bg-raised);
            padding: 4px 24px 22px;
            color: var(--text-mid);
            font-size: 15px;
            line-height: 1.75;
            border-top: 1px solid rgba(255, 255, 255, 0.03);
        }

        /* ===== CTA区 ===== */
        .cta-section {
            background: var(--bg-void);
            padding: 64px 0 96px;
        }

        .cta-banner {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-glow {
            position: absolute;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            pointer-events: none;
            filter: blur(20px);
        }

        .cta-glow-cyan {
            background: rgba(0, 212, 192, 0.05);
            top: -80px;
            left: -60px;
        }

        .cta-glow-gold {
            background: rgba(255, 181, 60, 0.05);
            bottom: -80px;
            right: -60px;
        }

        .cta-content {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 280px;
        }

        .cta-content h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .cta-content p {
            color: var(--text-mid);
            font-size: 15px;
            margin-bottom: 0;
            line-height: 1.7;
        }

        .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ===== 表单通用样式 ===== */
        .form-control {
            background: var(--bg-void);
            border: 1px solid rgba(255, 181, 60, 0.25);
            border-radius: 8px;
            padding: 12px 16px;
            color: var(--text-hi);
            font-size: 15px;
        }

        .form-control:focus {
            background: var(--bg-void);
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(255, 181, 60, 0.15);
            color: var(--text-hi);
        }

        .form-label {
            color: var(--text-mid);
            font-size: 14px;
            margin-bottom: 8px;
        }

        /* ===== 通用卡片 ===== */
        .custom-card {
            background: var(--bg-raised);
            border: 1px solid var(--border-main);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }

        .custom-card:hover {
            border-color: rgba(255, 181, 60, 0.5);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card), var(--shadow-glow-gold);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .main-nav {
                min-height: 56px;
            }

            .navbar-collapse {
                background: var(--bg-void);
                border-top: 1px solid var(--border-main);
                padding: 12px 0;
            }

            .navbar-nav .nav-link {
                padding: 12px 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }

            .navbar-nav .nav-link.active::after {
                bottom: 10px;
            }

            .btn-nav-cta {
                margin-left: 0;
                margin-top: 12px;
                display: inline-block;
                width: 100%;
                text-align: center;
            }

            .page-hero {
                min-height: 320px;
                padding: 48px 0;
            }

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

            .section {
                padding: 64px 0;
            }

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

            .cta-banner {
                flex-direction: column;
                align-items: flex-start;
                padding: 32px 20px;
            }

            .utility-text {
                display: none;
            }

            .utility-bar .container {
                justify-content: center;
            }
        }

        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 26px;
            }

            .guide-step-item {
                gap: 16px;
                padding-bottom: 28px;
            }

            .step-box {
                padding: 18px;
            }

            .step-box h3 {
                font-size: 18px;
            }

            .step-box p {
                font-size: 14px;
                line-height: 1.7;
            }

            .accordion-button {
                padding: 16px 16px;
                font-size: 15px;
                gap: 8px;
            }

            .accordion-body {
                padding: 2px 16px 16px;
                font-size: 14px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: center;
                gap: 10px;
            }

            .hero-actions .btn-gold,
            .hero-actions .btn-outline {
                width: 100%;
                max-width: 280px;
                text-align: center;
            }

            .guide-stats {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .stat-card {
                padding: 14px 10px;
            }

            .stat-card strong {
                font-size: 26px;
            }

            .stat-card span {
                font-size: 12px;
            }

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

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

            .cta-actions .btn-gold,
            .cta-actions .btn-outline {
                width: 100%;
                text-align: center;
            }

            .footer {
                padding-top: 36px;
            }

            .footer-title {
                margin-top: 16px;
            }
        }

        @media (max-width: 575.98px) {
            .page-hero h1 {
                font-size: 30px;
            }

            .hero-desc {
                font-size: 14px;
            }

            .step-num {
                width: 40px;
                height: 40px;
                font-size: 15px;
            }

            .guide-step-item::before {
                left: 19px;
                top: 46px;
            }

            .stat-card strong {
                font-size: 22px;
            }
        }

        @media (min-width: 992px) {
            .navbar-nav .nav-link {
                padding-right: 16px;
                padding-left: 16px;
            }
        }