/* roulang page: index */
:root {
    --primary: #3366FF;
    --primary-light: #8AA0FF;
    --secondary: #7A5CFF;
    --accent: #F7B955;
    --bg-deep: #0B0E1A;
    --bg-navy: #12172B;
    --bg-card: #181F38;
    --bg-card-hover: #1E2745;
    --text-primary: #E6E9F2;
    --text-secondary: #A6AEC6;
    --text-muted: #6B7394;
    --link-color: #8AA0FF;
    --link-hover: #B0C1FF;
    --border: rgba(255,255,255,0.08);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow: 0 8px 30px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.55);
    --transition: all 0.3s ease;
    --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-stack);
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-primary);
    background-color: var(--bg-deep);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.25s ease;
}

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

button, input {
    font-family: inherit;
    font-size: inherit;
    border: none;
    outline: none;
    background: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.grid-x {
    display: flex;
    flex-wrap: wrap;
}

.grid-margin-x {
    margin-right: -12px;
    margin-left: -12px;
}

.grid-margin-x > .cell {
    padding-right: 12px;
    padding-left: 12px;
}

/* ===== Header 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11,14,26,0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    height: 72px;
    display: flex;
    align-items: center;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
}

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

.brand-icon {
    flex-shrink: 0;
}

.brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 auto;
}

.nav-link {
    position: relative;
    font-size: 14px;
    color: #C6CCE0;
    padding: 10px 16px;
    border-radius: 8px;
    transition: color 0.25s ease;
    white-space: nowrap;
}

.nav-link:hover {
    color: #fff;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link.on {
    color: #fff;
}

.nav-link.on::after {
    transform: scaleX(1);
}

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

.nav-search {
    position: relative;
    display: flex;
    align-items: center;
    width: 180px;
    transition: width 0.2s ease;
}

.nav-search:focus-within {
    width: 240px;
}

.search-icon {
    position: absolute;
    left: 12px;
    font-size: 13px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    height: 36px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    border: 1px solid transparent;
    padding: 0 34px 0 34px;
    font-size: 12px;
    color: var(--text-primary);
    transition: border-color 0.25s ease, background 0.25s ease;
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    border-color: var(--primary);
    background: rgba(255,255,255,0.1);
}

.search-kbd {
    position: absolute;
    right: 10px;
    font-size: 10px;
    color: var(--text-muted);
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    padding: 2px 5px;
    pointer-events: none;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon-btn {
    position: relative;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 15px;
    transition: background 0.25s ease, color 0.25s ease;
    cursor: pointer;
}

.icon-btn:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-primary);
}

.icon-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 15px;
    height: 15px;
    background: var(--accent);
    color: #0B0E1A;
    font-size: 9px;
    font-weight: 700;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-md);
    padding: 0 22px;
    height: 40px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: 1px solid transparent;
    line-height: 1;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 2px solid rgba(122,92,255,0.5);
    outline-offset: 2px;
}

.btn-login {
    border: 1px solid rgba(247,185,85,0.5);
    color: var(--accent);
    background: rgba(247,185,85,0.06);
    height: 36px;
    padding: 0 18px;
    font-size: 13px;
}

.btn-login:hover {
    background: var(--accent);
    color: #0B0E1A;
    border-color: var(--accent);
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    border-radius: 8px;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-navy);
    border-bottom: 1px solid var(--border);
    z-index: 999;
    padding: 12px 24px;
    flex-direction: column;
}

.mobile-menu.open {
    display: flex;
}

.mobile-link {
    padding: 12px 16px;
    font-size: 16px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: background 0.25s ease, color 0.25s ease;
}

.mobile-link:hover,
.mobile-link.on {
    color: var(--text-primary);
    background: rgba(255,255,255,0.06);
}

.mobile-link.btn-login-mobile {
    color: var(--accent);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 140px 0 80px;
    background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(150deg, rgba(11,14,26,0.45) 0%, rgba(11,14,26,0.8) 55%, rgba(11,14,26,0.95) 100%);
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(1px 1px at 15% 35%, rgba(255,255,255,0.35) 50%, transparent 50%),
        radial-gradient(1px 1px at 75% 22%, rgba(255,255,255,0.25) 50%, transparent 50%),
        radial-gradient(1.5px 1.5px at 45% 65%, rgba(247,185,85,0.35) 50%, transparent 50%),
        radial-gradient(1px 1px at 88% 75%, rgba(255,255,255,0.2) 50%, transparent 50%),
        radial-gradient(1px 1px at 25% 80%, rgba(255,255,255,0.15) 50%, transparent 50%);
    background-size: 120px 120px, 160px 160px, 200px 200px, 140px 140px, 180px 180px;
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 860px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--accent);
    background: rgba(247,185,85,0.1);
    border: 1px solid rgba(247,185,85,0.35);
    border-radius: 999px;
    padding: 5px 14px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 42px;
    line-height: 1.25;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 36px;
    letter-spacing: 1px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 16px rgba(90,80,255,0.35);
    height: 48px;
    padding: 0 28px;
    font-size: 15px;
    border-radius: var(--radius-md);
}

.btn-primary:hover {
    filter: brightness(1.08);
    box-shadow: 0 8px 24px rgba(90,80,255,0.45);
    color: #fff;
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 4px 12px rgba(90,80,255,0.3);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text-primary);
    height: 48px;
    padding: 0 28px;
    font-size: 15px;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.35);
}

.btn-lg {
    height: 48px;
    padding: 0 30px;
    font-size: 15px;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

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

/* ===== 通用区块 ===== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.section-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.section-header .accent-line {
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    margin: 16px auto 0;
}

/* ===== 三步上手 ===== */
.steps-section {
    background: var(--bg-navy);
    padding: 100px 0;
    position: relative;
}

.steps-grid {
    margin-top: 24px;
}

.step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 36px 28px 32px;
    transition: var(--transition);
    min-height: 220px;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    border-radius: 2px 2px 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(122,92,255,0.35);
}

.step-card:hover::before {
    opacity: 1;
}

.step-num {
    font-size: 40px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 18px;
    line-height: 1;
}

.step-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-icon {
    position: absolute;
    bottom: 28px;
    right: 28px;
    font-size: 28px;
    color: rgba(122,92,255,0.35);
}

.step-connect {
    display: none;
}

@media (min-width: 1024px) {
    .step-card {
        margin-bottom: 0;
    }
    .step-card-wrap {
        position: relative;
    }
    .step-card-wrap:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 50%;
        right: -24px;
        width: 48px;
        height: 2px;
        background: linear-gradient(90deg, rgba(122,92,255,0.6), rgba(247,185,85,0.5));
        transform: translateY(-50%);
        z-index: 2;
    }
}

/* ===== 案例证明 ===== */
.cases-section {
    padding: 100px 0;
    background: var(--bg-deep);
}

.case-main {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 36px;
    position: relative;
    overflow: hidden;
    background-image: url('/assets/images/coverpic/cover-1.png');
    background-size: cover;
    background-position: center;
    min-height: 360px;
}

.case-main::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(160deg, rgba(18,23,43,0.75) 0%, rgba(11,14,26,0.9) 100%);
    z-index: 1;
}

.case-main .case-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 24px;
}

.stat-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: rgba(247,185,85,0.12);
    border: 1px solid rgba(247,185,85,0.3);
    border-radius: 999px;
    padding: 12px 20px;
    text-align: center;
}

.stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.case-main .case-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.75;
    max-width: 480px;
}

.case-side {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.case-mini {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: var(--transition);
}

.case-mini:hover {
    box-shadow: var(--shadow);
    transform: translateY(-2px);
}

.case-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.case-mini p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 100px 0;
    background: var(--bg-navy);
}

.faq-grid {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(51,102,255,0.35);
    box-shadow: var(--shadow);
}

.faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    gap: 16px;
}

.faq-icon {
    font-size: 18px;
    color: var(--accent);
    transition: transform 0.25s ease;
    flex-shrink: 0;
    line-height: 1;
}

.faq-icon.rotate {
    transform: rotate(45deg);
}

.faq-a {
    display: none;
    padding: 0 24px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin: 0 24px;
    padding: 16px 0 20px;
}

.faq-a.show {
    display: block;
}

/* ===== 最新信息 CMS ===== */
.latest-section {
    padding: 100px 0;
    background: var(--bg-deep);
}

.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 16px;
}

.section-head h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
}

.view-all {
    font-size: 14px;
    color: var(--link-color);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 0;
}

.view-all:hover {
    color: var(--link-hover);
}

.article-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    height: 100%;
    margin-bottom: 24px;
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(122,92,255,0.35);
    color: inherit;
}

.card-cover {
    position: relative;
    height: 180px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    display: inline-block;
    background: rgba(247,185,85,0.9);
    color: #0B0E1A;
    font-size: 12px;
    font-weight: 600;
    border-radius: 999px;
    padding: 3px 12px;
    z-index: 1;
}

.card-body {
    padding: 20px 20px 16px;
}

.card-body h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
}

.card-body p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 12px;
    margin-top: 4px;
}

.empty-state {
    width: 100%;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed rgba(255,255,255,0.2);
    border-radius: 20px;
    background: rgba(24,31,56,0.4);
    text-align: center;
    padding: 48px 24px;
}

.empty-state i {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.empty-state p {
    font-size: 15px;
    color: var(--text-secondary);
}

/* ===== CTA ===== */
.cta-section {
    padding: 100px 0;
    background: radial-gradient(ellipse at center, #1a2240 0%, var(--bg-deep) 75%);
    text-align: center;
}

.cta-section h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-gold {
    background: var(--accent);
    color: #0B0E1A;
    box-shadow: 0 4px 16px rgba(247,185,85,0.3);
}

.btn-gold:hover {
    filter: brightness(1.08);
    box-shadow: 0 8px 24px rgba(247,185,85,0.4);
    color: #0B0E1A;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 64px 0 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 48px;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 60px;
    flex-wrap: wrap;
}

.link-group h4 {
    font-size: 13px;
    color: var(--accent);
    margin-bottom: 14px;
    font-weight: 600;
}

.link-group a {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    padding: 5px 0;
    transition: color 0.25s ease;
}

.link-group a:hover {
    color: var(--link-hover);
}

.footer-middle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-wrap: wrap;
    gap: 12px;
}

.footer-middle span {
    font-size: 13px;
    color: var(--text-muted);
}

.footer-middle .footer-mini-links {
    display: flex;
    gap: 20px;
}

.footer-middle .footer-mini-links a {
    font-size: 13px;
    color: var(--text-secondary);
    transition: color 0.25s ease;
}

.footer-middle .footer-mini-links a:hover {
    color: var(--link-hover);
}

.footer-bottom {
    padding: 20px 0 32px;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.04);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
    .nav-links {
        display: none;
    }
    .nav-search {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .mobile-menu {
        display: none;
    }
    .mobile-menu.open {
        display: flex;
    }
    .hero {
        min-height: 440px;
        padding: 120px 0 60px;
    }
    .hero-title {
        font-size: 32px;
    }
    .steps-section,
    .cases-section,
    .faq-section,
    .latest-section,
    .cta-section {
        padding: 72px 0;
    }
    .section-header h2,
    .section-head h2,
    .cta-section h2 {
        font-size: 26px;
    }
    .case-main {
        margin-bottom: 24px;
        min-height: 300px;
    }
    .footer-top {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 639px) {
    .container {
        padding: 0 20px;
    }
    .hero {
        min-height: 440px;
        padding: 100px 0 48px;
    }
    .hero-title {
        font-size: 26px;
        line-height: 1.35;
    }
    .hero-subtitle {
        font-size: 14px;
    }
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto 24px;
    }
    .hero-actions .btn {
        width: 100%;
    }
    .nav-actions .icon-btn {
        display: none;
    }
    .btn-login {
        display: none;
    }
    .mobile-link.btn-login-mobile {
        display: block;
    }
    .stats-row {
        gap: 8px;
    }
    .stat-badge {
        padding: 10px 14px;
    }
    .step-card {
        margin-bottom: 20px;
    }
    .footer-links {
        flex-direction: column;
        gap: 24px;
    }
    .footer-middle {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: article */
:root {
            --primary: #3366FF;
            --primary-light: #8AA0FF;
            --primary-lighter: #B0C1FF;
            --purple: #7A5CFF;
            --gold: #F7B955;
            --bg-deep: #0B0E1A;
            --bg-dark: #12172B;
            --bg-card: #181F38;
            --bg-card-hover: #1E2745;
            --text-primary: #E6E9F2;
            --text-secondary: #A6AEC6;
            --text-muted: #6B7394;
            --border: rgba(255,255,255,0.08);
            --border-light: rgba(255,255,255,0.06);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow: 0 8px 30px rgba(0,0,0,0.35);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.55);
            --gradient: linear-gradient(135deg, #3366FF 0%, #7A5CFF 100%);
            --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: var(--font);
            background-color: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.75;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid rgba(122, 92, 255, 0.5);
            outline-offset: 2px;
        }

        .grid-container {
            max-width: 1280px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            font-family: var(--font);
        }

        .btn-primary {
            background: var(--gradient);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(90, 80, 255, 0.35);
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 6px 24px rgba(90, 80, 255, 0.5);
            transform: translateY(-1px);
            color: #ffffff;
        }

        .btn-outline {
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: transparent;
            color: var(--text-primary);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        .btn-gold {
            background: var(--gold);
            color: #1a1408;
            box-shadow: 0 4px 16px rgba(247, 185, 85, 0.3);
        }

        .btn-gold:hover {
            filter: brightness(1.06);
            color: #1a1408;
            transform: translateY(-1px);
        }

        .btn-lg {
            height: 52px;
            padding: 0 32px;
            font-size: 16px;
        }

        .btn-sm {
            height: 36px;
            padding: 0 16px;
            font-size: 13px;
            border-radius: var(--radius-sm);
        }

        .btn-block {
            width: 100%;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(11, 14, 26, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            position: relative;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            flex-shrink: 0;
            transition: opacity 0.2s;
        }

        .brand-logo:hover {
            opacity: 0.88;
        }

        .nav-links-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex: 1;
            margin-left: 40px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 16px;
            font-size: 14px;
            color: #C6CCE0;
            border-radius: 8px;
            position: relative;
            transition: color 0.2s;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: -2px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--purple));
            opacity: 0;
            transform: scaleX(0.3);
            transition: all 0.25s ease;
        }

        .nav-link:hover {
            color: #ffffff;
        }

        .nav-link:hover::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .nav-link.on {
            color: #ffffff;
        }

        .nav-link.on::after {
            opacity: 1;
            transform: scaleX(1);
        }

        .command-search {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 180px;
            height: 36px;
            padding: 0 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            transition: width 0.2s ease, border-color 0.2s ease;
        }

        .command-search:focus-within {
            width: 240px;
            border-color: rgba(122, 92, 255, 0.5);
        }

        .command-search input {
            flex: 1;
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 12px;
            min-width: 0;
        }

        .command-search input::placeholder {
            color: var(--text-muted);
        }

        .search-icon {
            font-size: 13px;
            color: var(--text-muted);
        }

        .search-kbd {
            font-size: 11px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.08);
            padding: 2px 6px;
            border-radius: 4px;
            line-height: 1.4;
            white-space: nowrap;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: 16px;
        }

        .icon-btn {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
        }

        .badge-dot {
            position: absolute;
            top: -4px;
            right: -4px;
            min-width: 16px;
            height: 16px;
            padding: 0 4px;
            border-radius: 999px;
            background: var(--gold);
            color: #1a1408;
            font-size: 10px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .cta-login {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 36px;
            padding: 0 20px;
            border-radius: var(--radius-sm);
            background: transparent;
            border: 1px solid rgba(247, 185, 85, 0.5);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            transition: var(--transition);
        }

        .cta-login:hover {
            background: var(--gold);
            color: #1a1408;
            border-color: var(--gold);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
        }

        .menu-toggle.active {
            color: var(--gold);
        }

        .article-banner {
            position: relative;
            margin-top: 68px;
            padding: 140px 0 76px;
            background: linear-gradient(180deg, rgba(11, 14, 26, 0.30), rgba(11, 14, 26, 0.92)), url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            background-color: var(--bg-dark);
        }

        .article-banner::after {
            content: "";
            position: absolute;
            top: 18%;
            left: 6%;
            width: 3px;
            height: 3px;
            background: rgba(247, 185, 85, 0.55);
            border-radius: 50%;
            box-shadow:
                110px 70px 0 rgba(255, 255, 255, 0.22),
                260px 150px 0 rgba(255, 255, 255, 0.18),
                560px 30px 0 rgba(255, 255, 255, 0.30),
                380px 190px 0 rgba(247, 185, 85, 0.32),
                720px 130px 0 rgba(255, 255, 255, 0.15),
                480px 80px 0 rgba(255, 255, 255, 0.24);
            z-index: 1;
            pointer-events: none;
        }

        .banner-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .article-cate-tag {
            display: inline-block;
            padding: 5px 16px;
            border-radius: 999px;
            border: 1px solid rgba(247, 185, 85, 0.35);
            background: rgba(247, 185, 85, 0.12);
            color: var(--gold);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .banner-content h1 {
            font-size: 34px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-primary);
            margin: 18px auto 22px;
            max-width: 920px;
        }

        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .meta-item i {
            font-size: 12px;
            color: var(--gold);
        }

        .breadcrumb-nav {
            padding-top: 24px;
        }

        .breadcrumb-nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 0;
            padding: 0;
            font-size: 13px;
        }

        .breadcrumb-nav li {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
        }

        .breadcrumb-nav li + li::before {
            content: "/";
            color: var(--text-muted);
            opacity: 0.5;
        }

        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color 0.2s;
        }

        .breadcrumb-nav a:hover {
            color: var(--primary-light);
        }

        .breadcrumb-nav .is-current span {
            color: var(--gold);
        }

        .article-section {
            padding: 40px 0 80px;
        }

        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 40px 48px;
            box-shadow: var(--shadow);
        }

        .zjg-article-content {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            word-wrap: break-word;
        }

        .zjg-article-content p {
            margin: 0 0 24px;
            line-height: 1.8;
        }

        .zjg-article-content > p:first-of-type {
            font-size: 17px;
            color: var(--text-primary);
            font-weight: 500;
        }

        .zjg-article-content h2 {
            font-size: 24px;
            color: var(--text-primary);
            font-weight: 600;
            margin: 40px 0 16px;
            padding-top: 8px;
            line-height: 1.4;
        }

        .zjg-article-content h3 {
            font-size: 19px;
            color: var(--text-primary);
            font-weight: 600;
            margin: 32px 0 12px;
            line-height: 1.4;
        }

        .zjg-article-content h4 {
            font-size: 16px;
            color: var(--text-primary);
            font-weight: 600;
            margin: 24px 0 8px;
        }

        .zjg-article-content ul,
        .zjg-article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

        .zjg-article-content ul li {
            list-style: none;
            position: relative;
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .zjg-article-content ul li::before {
            content: "★";
            position: absolute;
            left: -20px;
            top: 2px;
            color: var(--gold);
            font-size: 11px;
        }

        .zjg-article-content ol li {
            margin-bottom: 8px;
            padding-left: 4px;
        }

        .zjg-article-content blockquote {
            background: var(--bg-dark);
            border-left: 3px solid var(--gold);
            border-radius: 0 10px 10px 0;
            padding: 20px 24px;
            margin: 24px 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .zjg-article-content img {
            border-radius: var(--radius-md);
            margin: 24px auto;
            box-shadow: var(--shadow);
        }

        .zjg-article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }

        .zjg-article-content th,
        .zjg-article-content td {
            padding: 12px 16px;
            border: 1px solid var(--border-light);
            text-align: left;
            color: var(--text-secondary);
        }

        .zjg-article-content th {
            background: var(--bg-dark);
            color: var(--text-primary);
            font-weight: 600;
        }

        .zjg-article-content code {
            background: var(--bg-dark);
            color: var(--gold);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 13px;
        }

        .zjg-article-content pre {
            background: var(--bg-dark);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .zjg-article-content pre code {
            background: transparent;
            color: var(--text-primary);
        }

        .zjg-article-content a {
            color: var(--primary-light);
            text-decoration: underline;
        }

        .article-empty {
            text-align: center;
            padding: 80px 24px;
        }

        .article-empty i {
            font-size: 48px;
            color: var(--text-muted);
            margin-bottom: 16px;
            display: inline-block;
        }

        .article-empty p {
            font-size: 16px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        .article-sidebar {
            position: sticky;
            top: 90px;
        }

        .side-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow);
        }

        .side-card h3 {
            font-size: 16px;
            color: var(--text-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-light);
            position: relative;
        }

        .side-card h3::before {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 32px;
            height: 2px;
            background: var(--gradient);
            border-radius: 2px;
        }

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

        .related-list li {
            border-bottom: 1px solid var(--border-light);
        }

        .related-list li:last-child {
            border-bottom: none;
        }

        .related-list a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            padding: 14px 0;
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.2s;
        }

        .related-list a:hover {
            color: var(--primary-light);
        }

        .rel-date {
            font-size: 12px;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .side-return .btn {
            height: 44px;
            font-size: 14px;
        }

        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border);
            padding: 64px 0 24px;
            position: relative;
            overflow: hidden;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 800px;
            height: 1px;
            background: radial-gradient(ellipse at center, rgba(247, 185, 85, 0.18), transparent 70%);
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 3fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 12px;
            max-width: 320px;
            line-height: 1.6;
        }

        .footer-links {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .link-group h4 {
            font-size: 13px;
            color: var(--gold);
            margin-bottom: 12px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .link-group a {
            display: block;
            font-size: 13px;
            color: var(--text-muted);
            padding: 5px 0;
            transition: color 0.2s;
        }

        .link-group a:hover {
            color: var(--primary-light);
        }

        .footer-middle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 13px;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-mini-links {
            display: flex;
            gap: 20px;
        }

        .footer-mini-links a {
            color: var(--text-muted);
            font-size: 13px;
            transition: color 0.2s;
        }

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

        .footer-bottom {
            padding-top: 20px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
        }

        @media (max-width: 1024px) {
            .nav-links-wrap {
                position: fixed;
                top: 68px;
                left: 0;
                right: 0;
                z-index: 999;
                background: var(--bg-dark);
                flex-direction: column;
                align-items: stretch;
                margin-left: 0;
                padding: 8px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-10px);
                transition: all 0.25s ease;
                max-height: calc(100vh - 68px);
                overflow-y: auto;
            }

            .nav-links-wrap.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }

            .nav-links {
                flex-direction: column;
                gap: 0;
                align-items: stretch;
                width: 100%;
            }

            .nav-link {
                padding: 12px 0;
                display: block;
            }

            .nav-link::after {
                display: none;
            }

            .nav-link:hover {
                background: rgba(255, 255, 255, 0.06);
                border-radius: 8px;
            }

            .nav-tools {
                flex-direction: column;
                align-items: stretch;
                margin-top: 16px;
                gap: 12px;
            }

            .command-search {
                width: 100%;
                max-width: none;
            }

            .command-search:focus-within {
                width: 100%;
            }

            .nav-actions {
                justify-content: space-between;
                margin-left: 0;
            }

            .cta-login {
                flex: 1;
                text-align: center;
            }

            .menu-toggle {
                display: flex;
            }

            .article-banner {
                padding: 120px 0 60px;
            }

            .article-section {
                padding: 32px 0 60px;
            }

            .article-content {
                padding: 32px;
            }

            .article-sidebar {
                position: static;
                margin-top: 32px;
            }
        }

        @media (max-width: 768px) {
            .banner-content h1 {
                font-size: 28px;
            }

            .article-content {
                padding: 24px;
            }

            .breadcrumb-nav {
                padding-top: 16px;
            }

            .footer-top {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-links {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .article-banner {
                padding: 96px 0 44px;
            }

            .banner-content h1 {
                font-size: 24px;
            }

            .meta-item {
                font-size: 12px;
                padding: 4px 10px;
            }

            .article-meta {
                gap: 8px;
            }

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

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

/* roulang page: category1 */
:root {
            --primary: #3366FF;
            --primary-light: #7A5CFF;
            --accent: #F7B955;
            --bg-dark: #0B0E1A;
            --bg-secondary: #12172B;
            --bg-card: #181F38;
            --bg-card-hover: #1E2745;
            --text-primary: #E6E9F2;
            --text-secondary: #A6AEC6;
            --text-muted: #6B7394;
            --link-color: #8AA0FF;
            --link-hover: #B0C1FF;
            --border: rgba(255, 255, 255, 0.08);
            --border-strong: rgba(255, 255, 255, 0.14);
            --radius-lg: 18px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.55);
            --gradient-primary: linear-gradient(135deg, #3366FF, #7A5CFF);
            --transition: all 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background-color: var(--bg-dark);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: var(--link-color);
            text-decoration: none;
            transition: var(--transition);
        }

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

        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
            color: inherit;
        }

        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        .row {
            max-width: 1200px;
            margin: 0 auto;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

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

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 40px;
            padding: 0 22px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            text-decoration: none;
            font-family: inherit;
            outline: none;
        }

        .btn:focus-visible {
            outline: 2px solid rgba(122, 92, 255, 0.6);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(90, 80, 255, 0.35);
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 8px 24px rgba(90, 80, 255, 0.45);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(1px);
        }

        .btn-outline {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.2);
            color: var(--text-primary);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(247, 185, 85, 0.5);
            color: var(--accent);
        }

        .btn-ghost:hover {
            background: var(--accent);
            color: var(--bg-dark);
        }

        .btn-lg {
            height: 48px;
            padding: 0 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .btn-sm {
            height: 32px;
            padding: 0 14px;
            font-size: 13px;
            border-radius: 10px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            line-height: 1.2;
            white-space: nowrap;
        }

        .tag-gold {
            background: rgba(247, 185, 85, 0.12);
            border: 1px solid rgba(247, 185, 85, 0.3);
            color: var(--accent);
        }

        .tag-blue {
            background: rgba(51, 102, 255, 0.12);
            border: 1px solid rgba(51, 102, 255, 0.3);
            color: var(--link-color);
        }

        .tag-gray {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-secondary);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 14, 26, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo:hover {
            color: var(--text-primary);
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            height: 36px;
            padding: 0 16px;
            font-size: 14px;
            color: #C6CCE0;
            border-radius: 8px;
            text-decoration: none;
            position: relative;
            transition: var(--transition);
        }

        .nav-link:hover {
            color: #ffffff;
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-link.on {
            color: #ffffff;
            font-weight: 600;
        }

        .nav-link.on::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
        }

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

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 180px;
            height: 36px;
            padding: 0 14px;
            border-radius: var(--radius-pill);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .search-box:focus-within {
            width: 240px;
            border-color: rgba(51, 102, 255, 0.5);
            background: rgba(255, 255, 255, 0.08);
        }

        .search-box i {
            font-size: 14px;
            color: var(--text-muted);
        }

        .search-box input {
            font-size: 12px;
            color: var(--text-primary);
            width: 100%;
            background: transparent;
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .icon-btn {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .icon-btn:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
        }

        .badge-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            min-width: 16px;
            height: 16px;
            padding: 0 4px;
            border-radius: var(--radius-pill);
            background: var(--accent);
            color: var(--bg-dark);
            font-size: 10px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
        }

        .menu-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 72px;
            left: 0;
            right: 0;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
            z-index: 99;
            transform: translateY(-12px);
            opacity: 0;
            transition: var(--transition);
            pointer-events: none;
        }

        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-link {
            display: flex;
            align-items: center;
            height: 48px;
            padding: 0 16px;
            font-size: 16px;
            color: var(--text-secondary);
            border-radius: 8px;
            text-decoration: none;
        }

        .mobile-link:hover {
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .mobile-link.on {
            color: var(--primary-light);
            font-weight: 600;
        }

        .mobile-cta {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            margin-top: 8px;
            border-radius: 10px;
            background: var(--gradient-primary);
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            text-decoration: none;
        }

        .page-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 14, 26, 0.55) 0%, rgba(11, 14, 26, 0.85) 65%, var(--bg-dark) 100%);
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.3), transparent),
                radial-gradient(1.5px 1.5px at 80% 20%, rgba(247, 185, 85, 0.35), transparent),
                radial-gradient(1px 1px at 45% 65%, rgba(255, 255, 255, 0.2), transparent),
                radial-gradient(2px 2px at 70% 80%, rgba(138, 160, 255, 0.3), transparent),
                radial-gradient(1px 1px at 10% 85%, rgba(255, 255, 255, 0.15), transparent);
            z-index: 0;
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: rgba(247, 185, 85, 0.08);
            border: 1px solid rgba(247, 185, 85, 0.3);
            color: var(--accent);
            font-size: 12px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-inner h1 {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }

        .hero-count {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 28px;
        }

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

        .capability-section {
            padding: 80px 0 40px;
            background: var(--bg-dark);
        }

        .sidebar-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            margin-bottom: 24px;
            transition: var(--transition);
        }

        .sidebar-card:hover {
            border-color: rgba(51, 102, 255, 0.3);
            box-shadow: var(--shadow);
        }

        .sidebar-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .sidebar-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .badge-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .badge-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: var(--radius-pill);
            background: rgba(247, 185, 85, 0.08);
            border: 1px solid rgba(247, 185, 85, 0.22);
            font-size: 13px;
            color: var(--text-primary);
            transition: var(--transition);
        }

        .badge-item i {
            color: var(--accent);
            font-size: 14px;
        }

        .badge-item:hover {
            background: rgba(247, 185, 85, 0.16);
            border-color: rgba(247, 185, 85, 0.4);
            transform: translateY(-2px);
        }

        .capability-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 20px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .capability-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            opacity: 0;
            transition: var(--transition);
        }

        .capability-card:hover {
            border-color: rgba(51, 102, 255, 0.35);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }

        .capability-card:hover::before {
            opacity: 1;
        }

        .cap-inner {
            display: flex;
            gap: 18px;
            align-items: flex-start;
        }

        .cap-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }

        .cap-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .cap-body {
            flex: 1;
            min-width: 0;
        }

        .cap-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .cap-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .cap-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .read-count {
            font-size: 13px;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .scenario-section {
            padding: 60px 0 80px;
            background: var(--bg-secondary);
            position: relative;
        }

        .scenario-left {
            padding-right: 40px;
        }

        .scenario-left h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .scenario-left p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 24px;
        }

        .scenario-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .scenario-item {
            display: flex;
            gap: 16px;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .scenario-item:hover {
            border-color: rgba(51, 102, 255, 0.3);
            box-shadow: var(--shadow);
            transform: translateX(4px);
        }

        .scenario-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(122, 92, 255, 0.12);
            border: 1px solid rgba(122, 92, 255, 0.25);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-light);
            font-size: 18px;
            flex-shrink: 0;
        }

        .scenario-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .scenario-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
        }

        .data-section {
            padding: 70px 0;
            background: var(--bg-dark);
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            transition: var(--transition);
        }

        .data-item:hover {
            border-color: rgba(247, 185, 85, 0.3);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

        .data-value {
            font-size: 34px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .data-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .cta-section {
            padding: 60px 0 80px;
            background: var(--bg-dark);
        }

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

        .cta-strip::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary-light));
            opacity: 0.6;
        }

        .cta-text h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 60px 0 24px;
        }

        .footer-top {
            display: flex;
            justify-content: space-between;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .footer-brand {
            max-width: 320px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        .footer-links {
            display: flex;
            gap: 60px;
            flex-wrap: wrap;
        }

        .link-group h4 {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            margin-bottom: 16px;
        }

        .link-group a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            text-decoration: none;
            transition: var(--transition);
        }

        .link-group a:hover {
            color: var(--link-hover);
        }

        .footer-middle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-bottom: 1px solid var(--border);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-middle span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-mini-links {
            display: flex;
            gap: 24px;
        }

        .footer-mini-links a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: var(--transition);
        }

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

        .footer-bottom {
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        .focus-visible-outline:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid rgba(122, 92, 255, 0.5);
            outline-offset: 2px;
        }

        @media (max-width: 1023.98px) {
            .nav-links {
                display: none;
            }

            .header-actions .search-box {
                display: none;
            }

            .header-actions .icon-btn {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .mobile-menu {
                display: flex;
            }

            .scenario-left {
                padding-right: 0;
                margin-bottom: 32px;
            }

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

            .cta-strip {
                padding: 36px 28px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 639.98px) {
            .section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 24px;
            }

            .hero-inner h1 {
                font-size: 28px;
            }

            .hero-inner p {
                font-size: 15px;
            }

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

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

            .cap-inner {
                flex-direction: column;
            }

            .cap-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }

            .cap-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .scenario-item {
                flex-direction: column;
            }

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

            .data-value {
                font-size: 26px;
            }

            .data-item {
                padding: 24px 12px;
            }

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

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

            .footer-top {
                flex-direction: column;
                gap: 32px;
            }

            .footer-links {
                gap: 24px;
            }

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

/* roulang page: category2 */
:root {
    --primary-blue: #3366FF;
    --primary-purple: #7A5CFF;
    --accent-gold: #F7B955;
    --bg-deep: #0B0E1A;
    --bg-secondary: #12172B;
    --bg-card: #181F38;
    --bg-card-hover: #1E2745;
    --text-primary: #E6E9F2;
    --text-secondary: #A6AEC6;
    --text-muted: #6B7394;
    --link-color: #8AA0FF;
    --link-hover: #B0C1FF;
    --border-color: rgba(255,255,255,0.06);
    --border-strong: rgba(255,255,255,0.12);
    --radius-large: 18px;
    --radius-medium: 12px;
    --radius-small: 8px;
    --shadow-default: 0 8px 30px rgba(0,0,0,0.35);
    --shadow-hover: 0 12px 40px rgba(0,0,0,0.55);
    --gradient-main: linear-gradient(135deg, #3366FF 0%, #7A5CFF 100%);
    --gradient-gold: linear-gradient(135deg, #F7B955 0%, #FFD98A 100%);
    --focus-ring: 0 0 0 3px rgba(122,92,255,0.4);
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-deep);
    color: var(--text-primary);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: var(--link-color); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--link-hover); }
button { font-family: inherit; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Header & Nav ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11,14,26,0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.brand-logo svg { flex-shrink: 0; }
.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-link {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    color: #C6CCE0;
    border-radius: 8px;
    position: relative;
    transition: all .2s ease;
}
.nav-link:hover {
    color: #fff;
    background: rgba(255,255,255,0.05);
}
.nav-link.on {
    color: #fff;
    font-weight: 600;
}
.nav-link.on::after {
    content: '';
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 2px;
    height: 2px;
    background: var(--gradient-main);
    border-radius: 2px;
}
.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-search {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 180px;
    padding: 8px 14px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 999px;
    font-size: 12px;
    color: var(--text-muted);
    cursor: text;
    transition: all .2s ease;
}
.header-search:hover,
.header-search:focus-within {
    width: 240px;
    border-color: rgba(51,102,255,0.5);
    background: rgba(255,255,255,0.09);
}
.header-search i { font-size: 13px; color: var(--text-muted); }
.header-search span { white-space: nowrap; }
.header-search kbd {
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 11px;
    color: var(--text-secondary);
    margin-left: auto;
}
.icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-secondary);
    font-size: 15px;
    position: relative;
    cursor: pointer;
    transition: all .2s ease;
}
.icon-btn:hover { background: rgba(255,255,255,0.1); color: #fff; }
.icon-btn .badge-dot {
    position: absolute;
    top: 4px;
    right: 6px;
    width: 8px;
    height: 8px;
    background: var(--accent-gold);
    border-radius: 50%;
    border: 2px solid var(--bg-deep);
}
.header-cta {
    display: inline-flex;
    align-items: center;
    height: 40px;
    padding: 0 20px;
    border-radius: 10px;
    background: transparent;
    border: 1px solid rgba(247,185,85,0.5);
    color: var(--accent-gold);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s ease;
}
.header-cta:hover {
    background: var(--accent-gold);
    color: var(--bg-deep);
    border-color: var(--accent-gold);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 22px;
    cursor: pointer;
    padding: 8px;
}

/* ========== Page Banner ========== */
.page-banner {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: center;
    padding-top: 72px;
    background-image: linear-gradient(180deg, rgba(11,14,26,0.55) 0%, rgba(11,14,26,0.92) 100%), url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    top: 100px;
    left: 10%;
    width: 4px;
    height: 4px;
    background: #fff;
    opacity: 0.4;
    border-radius: 50%;
    box-shadow: 120px 80px 0 rgba(255,255,255,0.25), 260px 30px 0 rgba(247,185,85,0.3), 420px 140px 0 rgba(255,255,255,0.2), 50px 200px 0 rgba(247,185,85,0.25);
}
.banner-content {
    width: 100%;
    text-align: center;
    padding: 80px 24px;
}
.breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--link-color); }
.breadcrumb .current { color: var(--accent-gold); }
.breadcrumb i { font-size: 10px; }
.banner-h1 {
    font-size: 40px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 1px;
    line-height: 1.3;
    margin-bottom: 16px;
}
.banner-h1 .highlight {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.banner-sub {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 24px;
    line-height: 1.8;
}
.banner-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(247,185,85,0.1);
    border: 1px solid rgba(247,185,85,0.25);
    border-radius: 999px;
    font-size: 13px;
    color: var(--accent-gold);
}

/* ========== Main Content ========== */
.category-main {
    padding: 80px 0 20px;
    background: var(--bg-deep);
}
.content-grid {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 32px;
}

/* Cards list area */
.cards-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.content-card {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    overflow: hidden;
    padding: 0;
    transition: all .3s ease;
    min-height: 170px;
}
.content-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(51,102,255,0.35);
    background: var(--bg-card-hover);
}
.content-card .thumb {
    width: 200px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}
.content-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.content-card:hover .thumb img { transform: scale(1.05); }
.content-card .thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 60%, rgba(24,31,56,0.6) 100%);
}
.content-card .card-body {
    flex: 1;
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.content-card .card-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}
.tag {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    border-radius: 999px;
    font-weight: 500;
}
.tag-blue {
    background: rgba(51,102,255,0.15);
    border: 1px solid rgba(51,102,255,0.35);
    color: var(--link-color);
}
.tag-gold {
    background: rgba(247,185,85,0.12);
    border: 1px solid rgba(247,185,85,0.3);
    color: var(--accent-gold);
}
.content-card h3 {
    font-size: 19px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color .2s ease;
}
.content-card:hover h3 { color: #fff; }
.content-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Sidebar area */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-large);
    padding: 28px;
}
.sidebar-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
    position: relative;
    padding-bottom: 12px;
}
.sidebar-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--gradient-main);
    border-radius: 3px;
}
.sidebar-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
}
.about-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--gradient-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    margin-bottom: 16px;
}

/* Badge matrix */
.badge-matrix {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}
.badge-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-medium);
    transition: all .2s ease;
}
.badge-item:hover {
    background: rgba(51,102,255,0.1);
    border-color: rgba(51,102,255,0.4);
    transform: translateY(-2px);
}
.badge-item i {
    font-size: 16px;
    color: var(--accent-gold);
    width: 20px;
    text-align: center;
}
.badge-item span {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}
.badge-item small {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ========== Service Prompt Bar ========== */
.service-prompt {
    margin: 60px 0 80px;
    background: linear-gradient(135deg, rgba(18,23,43,0.9) 0%, rgba(11,14,26,0.95) 100%);
    border: 1px solid rgba(122,92,255,0.2);
    border-radius: var(--radius-large);
    padding: 48px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
}
.service-prompt::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(122,92,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
}
.prompt-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.prompt-content p {
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 640px;
}
.prompt-actions {
    display: flex;
    gap: 14px;
    flex-shrink: 0;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 24px;
    background: var(--gradient-main);
    border: none;
    border-radius: var(--radius-medium);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s ease;
    box-shadow: 0 4px 16px rgba(90,80,255,0.3);
}
.btn-primary:hover {
    filter: brightness(1.08);
    box-shadow: 0 6px 22px rgba(90,80,255,0.4);
    color: #fff;
    transform: translateY(-1px);
}
.btn-primary:active {
    transform: translateY(1px);
}
.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 44px;
    padding: 0 24px;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-medium);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all .25s ease;
}
.btn-outline:hover {
    background: rgba(255,255,255,0.08);
    color: #fff;
    border-color: rgba(255,255,255,0.4);
}

/* ========== Footer ========== */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 60px 0 30px;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    bottom: 100px;
    right: 15%;
    width: 3px;
    height: 3px;
    background: #fff;
    opacity: 0.2;
    border-radius: 50%;
    box-shadow: -80px -40px 0 rgba(255,255,255,0.15), -200px 20px 0 rgba(247,185,85,0.2);
}
.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 2fr;
    gap: 60px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    padding-bottom: 40px;
    margin-bottom: 30px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}
.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 320px;
}
.footer-links {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 32px;
}
.link-group h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 14px;
}
.link-group a {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    transition: color .2s ease;
}
.link-group a:hover {
    color: var(--link-color);
}
.footer-middle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    margin-bottom: 24px;
}
.footer-middle span {
    font-size: 13px;
    color: var(--text-muted);
}
.footer-mini-links {
    display: flex;
    gap: 20px;
}
.footer-mini-links a {
    font-size: 13px;
    color: var(--text-muted);
}
.footer-mini-links a:hover { color: var(--link-color); }
.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
}

/* ========== Responsive ========== */
@media screen and (max-width: 1024px) {
    .content-grid { grid-template-columns: 1fr; }
    .sidebar { display: grid; grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .header-search { width: 150px; }
    .header-search:hover,
    .header-search:focus-within { width: 180px; }
    .service-prompt { flex-direction: column; text-align: center; }
    .prompt-content p { margin: 0 auto; }
    .prompt-actions { justify-content: center; }
}

@media screen and (max-width: 768px) {
    .header-search { display: none; }
    .banner-h1 { font-size: 28px; }
    .footer-top { grid-template-columns: 1fr; gap: 40px; }
    .cards-list { gap: 20px; }
    .content-card { flex-direction: column; }
    .content-card .thumb { width: 100%; height: 160px; }
    .content-card .thumb::after { background: linear-gradient(0deg, rgba(24,31,56,0.6) 0%, transparent 100%); }
    .content-card .card-body { padding: 20px; }
    .sidebar { display: flex; }
}

@media screen and (max-width: 640px) {
    .container { padding: 0 16px; }
    .header-inner { height: 60px; }
    .page-banner { min-height: 360px; padding-top: 60px; }
    .banner-content { padding: 50px 16px; }
    .banner-h1 { font-size: 24px; }
    .banner-sub { font-size: 14px; }
    .icon-btn { display: none; }
    .header-cta { height: 36px; padding: 0 16px; font-size: 13px; }
    .badge-matrix { grid-template-columns: 1fr 1fr; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-middle { flex-direction: column; gap: 12px; }
    .btn-primary, .btn-outline { width: 100%; justify-content: center; }
    .prompt-actions { flex-direction: column; width: 100%; }
}

/* Focus states */
a:focus-visible, button:focus-visible {
    outline: 2px solid rgba(122,92,255,0.6);
    outline-offset: 2px;
}

/* ========== Mobile Nav Panel ========== */
.mobile-nav-panel {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-default);
    padding: 12px 16px;
    display: none;
    z-index: 999;
}
.mobile-nav-panel.open { display: block; }
.mobile-nav-panel a {
    display: block;
    padding: 14px 12px;
    font-size: 16px;
    color: var(--text-primary);
    border-radius: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}
.mobile-nav-panel a:hover { background: rgba(255,255,255,0.05); }
.mobile-nav-panel a.on { color: var(--accent-gold); font-weight: 600; }