/* roulang page: index */
:root {
    --brand-primary: #4A7CF7;
    --brand-primary-dark: #3567D9;
    --brand-accent: #F5A623;
    --brand-accent-soft: #FFF4E0;
    --brand-secondary: #7BA7FF;
    --bg-body: #F7F9FC;
    --bg-card: #FFFFFF;
    --bg-soft: #EEF3FA;
    --text-primary: #16233B;
    --text-secondary: #5B6B85;
    --text-muted: #8A99B4;
    --border-light: #E6ECF5;
    --success: #2EAF7D;
    --warning: #F5A623;
    --shadow-card: 0 6px 24px rgba(74, 124, 247, 0.08);
    --shadow-hover: 0 12px 36px rgba(74, 124, 247, 0.14);
    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-sm: 6px;
    --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-main);
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 64px;
    overflow-x: hidden;
}
a { color: var(--brand-primary); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--brand-primary-dark); }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }

::selection { background: rgba(74,124,247,0.15); }
:focus-visible { outline: 3px solid rgba(74,124,247,0.3); outline-offset: 2px; border-radius: 2px; }

.container { max-width: 1140px; }

.section { padding: 88px 0; }
.section-soft { background: var(--bg-soft); }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .sub-label {
    display: inline-block; background: var(--brand-accent-soft);
    color: #B87400; font-size: 0.8125rem; font-weight: 600;
    padding: 4px 14px; border-radius: 999px; margin-bottom: 12px;
    letter-spacing: 0.02em;
}
.section-header h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700; line-height: 1.3;
    color: var(--text-primary); margin-bottom: 10px;
}
.section-header p {
    color: var(--text-secondary); font-size: 1rem; max-width: 640px; margin: 0 auto;
}

.spectrum-bar {
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #F5A623, #FFD93D, #2EAF7D, #4A7CF7, #7BA7FF, #9B59B6);
    border-radius: 0;
}

/* ===== Buttons ===== */
.btn { border-radius: var(--radius-md); padding: 0.625rem 1.5rem; font-weight: 600; transition: all .25s ease; border: none; }
.btn-primary-custom {
    background: var(--brand-primary); color: #fff;
    box-shadow: 0 4px 16px rgba(74,124,247,0.25);
}
.btn-primary-custom:hover {
    background: var(--brand-primary-dark); color: #fff;
    box-shadow: 0 6px 20px rgba(74,124,247,0.35);
    transform: translateY(-2px);
}
.btn-primary-custom:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(74,124,247,0.2); }

.btn-outline-custom {
    background: #fff; border: 1px solid var(--brand-primary); color: var(--brand-primary);
}
.btn-outline-custom:hover {
    background: rgba(74,124,247,0.08); color: var(--brand-primary-dark);
    border-color: var(--brand-primary-dark); transform: translateY(-2px);
}
.btn-outline-custom:active { transform: translateY(0); }

.btn-accent-custom {
    background: var(--brand-accent); color: #7A4A00; font-weight: 700;
    box-shadow: 0 4px 16px rgba(245,166,35,0.3);
}
.btn-accent-custom:hover {
    background: #FFB830; color: #7A4A00;
    box-shadow: 0 6px 20px rgba(245,166,35,0.4);
    transform: translateY(-2px);
}
.btn-accent-custom:active { transform: translateY(0); }

/* ===== Badges ===== */
.badge-custom {
    display: inline-block; font-size: 0.75rem; font-weight: 500;
    padding: 3px 12px; border-radius: 999px;
    background: rgba(74,124,247,0.1); color: var(--brand-primary);
    letter-spacing: 0.02em;
}
.badge-accent {
    display: inline-block; font-size: 0.75rem; font-weight: 600;
    padding: 3px 12px; border-radius: 999px;
    background: var(--brand-accent-soft); color: #B87400;
}

/* ===== Header / Nav ===== */
.site-header {
    position: sticky; top: 0; z-index: 1030;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-light);
}
.navbar { padding: 14px 0; }
.navbar-brand {
    font-weight: 700; font-size: 1.25rem; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.navbar-brand:hover { color: var(--text-primary); }
.brand-icon {
    width: 30px; height: 30px; border-radius: 8px;
    background: linear-gradient(135deg, #FF6B6B, #F5A623, #FFD93D, #2EAF7D, #4A7CF7);
    display: inline-flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.75rem; font-weight: 700;
    flex-shrink: 0;
}
.brand-text .name-en { font-weight: 700; }
.brand-text .name-zh { color: var(--brand-primary); }
.brand-text .name-num { color: var(--brand-accent); font-weight: 700; }

.navbar-nav { gap: 8px; }
.navbar-nav .nav-link {
    font-size: 0.95rem; color: var(--text-secondary);
    font-weight: 500; padding: 8px 16px !important;
    border-radius: var(--radius-sm); position: relative;
    transition: color .2s ease;
}
.navbar-nav .nav-link:hover { color: var(--brand-primary); }
.navbar-nav .nav-link.active {
    color: var(--brand-primary); font-weight: 600;
}
.navbar-nav .nav-link.active::after {
    content: ''; position: absolute; bottom: 2px; left: 16px; right: 16px;
    height: 3px; border-radius: 2px;
    background: linear-gradient(90deg, #FF6B6B, #F5A623, #FFD93D, #4A7CF7, #7BA7FF);
}
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-badge {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.75rem; font-weight: 600;
    background: var(--brand-accent-soft); color: #B87400;
    padding: 4px 12px; border-radius: 999px;
}
.nav-badge .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--brand-accent); animation: pulse-dot 1.5s infinite;
}
@keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 0 0 rgba(245,166,35,0.4); }
    50% { box-shadow: 0 0 0 5px rgba(245,166,35,0); }
}

/* Countdown sub-bar */
.countdown-bar {
    background: var(--bg-soft);
    border-top: 1px solid var(--border-light);
    padding: 8px 0;
}
.countdown-inner {
    display: flex; align-items: center; justify-content: center; gap: 12px;
    font-size: 0.875rem; color: var(--text-secondary);
}
.countdown-inner .label { display: flex; align-items: center; gap: 6px; font-weight: 600; color: var(--text-primary); }
.countdown-inner .label i { color: var(--brand-accent); }
.countdown-nums { display: flex; gap: 6px; align-items: center; }
.countdown-nums .num {
    background: #fff; border: 1px solid var(--border-light);
    border-radius: 6px; padding: 2px 8px;
    font-size: 0.9375rem; font-weight: 600;
    font-variant-numeric: tabular-nums; color: var(--text-primary);
    min-width: 30px; text-align: center;
}
.countdown-nums .sep { color: var(--text-muted); font-weight: 300; }

/* ===== Hero ===== */
.hero {
    padding: 96px 0; position: relative;
    background: var(--bg-body);
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: 40px; right: -60px;
    width: 240px; height: 240px; border-radius: 50%;
    background: radial-gradient(circle, rgba(74,124,247,0.08), transparent 70%);
    pointer-events: none;
}
.hero::after {
    content: ''; position: absolute; bottom: 40px; left: -40px;
    width: 180px; height: 180px; border-radius: 50%;
    background: radial-gradient(circle, rgba(245,166,35,0.06), transparent 70%);
    pointer-events: none;
}
.hero .container { position: relative; z-index: 2; }
.hero-row { display: flex; align-items: center; gap: 48px; }
.hero-text-col { flex: 1 1 60%; }
.hero-visual-col { flex: 1 1 40%; }
.hero-tag {
    display: inline-block; font-size: 0.8125rem; font-weight: 600;
    color: var(--brand-primary); background: rgba(74,124,247,0.08);
    padding: 4px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700; line-height: 1.25; letter-spacing: -0.01em;
    color: var(--text-primary); margin-bottom: 16px;
}
.hero h1 .highlight {
    color: var(--brand-primary);
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.125rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 28px; max-width: 480px;
}
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-trust {
    display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
    font-size: 0.8125rem; color: var(--text-muted);
}
.hero-trust span { display: flex; align-items: center; gap: 6px; }
.hero-trust span i { color: var(--success); font-size: 0.75rem; }
.hero-trust .sep { color: var(--border-light); }

.hero-visual-inner {
    position: relative; border-radius: 20px; overflow: hidden;
    box-shadow: var(--shadow-hover);
    aspect-ratio: 4/3; background: var(--bg-soft);
}
.hero-visual-inner img { width: 100%; height: 100%; object-fit: cover; }
.hero-visual-inner::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(22,35,59,0.25), transparent 45%);
    pointer-events: none;
}
.hero-float-card {
    position: absolute; bottom: 20px; right: 20px;
    background: rgba(255,255,255,0.95);
    border-radius: 12px; padding: 12px 16px;
    box-shadow: 0 8px 24px rgba(22,35,59,0.15);
    display: flex; align-items: center; gap: 10px;
    z-index: 3;
}
.hero-float-card .float-icon {
    width: 36px; height: 36px; border-radius: 8px;
    background: rgba(74,124,247,0.12); color: var(--brand-primary);
    display: flex; align-items: center; justify-content: center; font-size: 1rem;
}
.hero-float-card .float-text { font-size: 0.75rem; font-weight: 600; color: var(--text-primary); line-height: 1.2; }
.hero-float-card .float-sub { font-size: 0.75rem; color: var(--text-muted); line-height: 1.2; }

/* ===== Feature Cards ===== */
.feature-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.feature-card {
    background: var(--bg-card); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 32px 28px;
    box-shadow: var(--shadow-card); position: relative; overflow: hidden;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
    border-radius: 0 4px 4px 0;
}
.feature-card:nth-child(1)::before { background: var(--brand-primary); }
.feature-card:nth-child(2)::before { background: var(--brand-accent); }
.feature-card:nth-child(3)::before { background: var(--brand-secondary); }
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(74,124,247,0.4);
}
.feature-card.feature-middle {
    background: var(--bg-soft);
    border: 1px solid rgba(74,124,247,0.2);
}
.feature-num {
    font-size: 2.5rem; font-weight: 300; color: var(--brand-primary);
    line-height: 1; margin-bottom: 14px;
    font-variant-numeric: tabular-nums;
}
.feature-card:nth-child(2) .feature-num { color: var(--brand-accent); }
.feature-card:nth-child(3) .feature-num { color: var(--brand-secondary); }
.feature-card h3 {
    font-size: 1.25rem; font-weight: 600; margin-bottom: 10px;
    color: var(--text-primary);
}
.feature-card p {
    font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 0;
}
.feature-tag {
    display: inline-block; font-size: 0.75rem; font-weight: 500;
    background: rgba(74,124,247,0.1); color: var(--brand-primary);
    padding: 2px 10px; border-radius: 999px; margin-top: 14px;
}
.feature-card:nth-child(2) .feature-tag { background: var(--brand-accent-soft); color: #B87400; }
.feature-card:nth-child(3) .feature-tag { background: rgba(123,167,255,0.15); color: var(--brand-primary-dark); }

/* ===== Scenario Blocks ===== */
.scenario-block { display: flex; align-items: center; gap: 48px; margin-bottom: 48px; }
.scenario-block:last-child { margin-bottom: 0; }
.scenario-block.flip { flex-direction: row-reverse; }
.scenario-img {
    flex: 1 1 50%; border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-card); aspect-ratio: 16/9; background: var(--bg-soft);
    position: relative;
}
.scenario-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.scenario-img:hover img { transform: scale(1.03); }
.scenario-img::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(22,35,59,0.1), transparent 60%);
    pointer-events: none;
}
.scenario-text { flex: 1 1 50%; }
.scenario-text .scenario-label {
    display: inline-block; font-size: 0.75rem; font-weight: 600;
    color: var(--brand-primary); background: rgba(74,124,247,0.08);
    padding: 4px 14px; border-radius: 999px; margin-bottom: 12px;
}
.scenario-text h3 {
    font-size: 1.5rem; font-weight: 700; color: var(--text-primary);
    margin-bottom: 12px; line-height: 1.3;
}
.scenario-text p {
    font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.75; margin-bottom: 16px;
}
.scenario-link {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.875rem; font-weight: 600; color: var(--brand-primary);
    transition: gap .2s ease;
}
.scenario-link:hover { gap: 10px; color: var(--brand-primary-dark); }

/* ===== News List ===== */
.news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
    display: block; background: var(--bg-card);
    border: 1px solid var(--border-light); border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(74,124,247,0.4);
    text-decoration: none;
}
.news-card-top {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 12px;
}
.news-time {
    font-size: 0.8125rem; color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}
.news-card h3 {
    font-size: 1.0625rem; font-weight: 600; color: var(--text-primary);
    margin-bottom: 8px; line-height: 1.4;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color .2s ease;
}
.news-card:hover h3 { color: var(--brand-primary); }
.news-summary {
    font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden; margin-bottom: 14px;
}
.news-more {
    font-size: 0.8125rem; font-weight: 600; color: var(--brand-primary);
    display: inline-flex; align-items: center; gap: 4px;
    transition: gap .2s ease;
}
.news-card:hover .news-more { gap: 8px; }

.news-empty {
    border: 2px dashed var(--border-light); border-radius: var(--radius-lg);
    padding: 60px 30px; text-align: center; grid-column: 1 / -1;
}
.news-empty .empty-icon {
    font-size: 2.5rem; color: var(--text-muted); margin-bottom: 12px;
    opacity: 0.5;
}
.news-empty p { color: var(--text-muted); font-size: 0.9375rem; }

/* ===== Stats ===== */
.stats-row {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
    margin-bottom: 48px;
}
.stat-item {
    text-align: center; padding: 32px 16px;
    background: var(--bg-card); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease;
}
.stat-item:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-hover);
}
.stat-num {
    font-size: 2.25rem; font-weight: 700; color: var(--brand-primary);
    font-variant-numeric: tabular-nums; line-height: 1.2;
}
.stat-label {
    font-size: 0.8125rem; color: var(--text-secondary); margin-top: 6px;
}
.testimonial-row {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.testimonial-card {
    background: var(--bg-card); border: 1px solid var(--border-light);
    border-radius: var(--radius-lg); padding: 28px;
    box-shadow: var(--shadow-card); position: relative;
    transition: transform .25s ease, box-shadow .25s ease;
}
.testimonial-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-hover);
}
.testimonial-card::before {
    content: '\201C';
    position: absolute; top: 16px; left: 20px;
    font-size: 3rem; color: rgba(74,124,247,0.15);
    font-family: Georgia, serif; line-height: 1;
}
.testimonial-card p {
    font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7;
    margin-bottom: 16px; margin-top: 8px; padding-left: 16px;
}
.testimonial-author {
    display: flex; align-items: center; gap: 10px;
    padding-left: 16px;
}
.testimonial-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: #fff; font-size: 0.8125rem; font-weight: 600;
    display: flex; align-items: center; justify-content: center;
}
.testimonial-author .author-name { font-size: 0.8125rem; font-weight: 600; color: var(--text-primary); }
.testimonial-author .author-role { font-size: 0.75rem; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-wrap { max-width: 780px; margin: 0 auto; }
.accordion-item {
    border: 1px solid var(--border-light) !important;
    border-radius: 12px !important; margin-bottom: 12px;
    overflow: hidden; background: var(--bg-card);
    box-shadow: var(--shadow-card);
}
.accordion-button {
    font-size: 1rem; font-weight: 600; color: var(--text-primary);
    padding: 18px 80px 18px 24px;
    background: var(--bg-card) !important;
    border: none !important;
    position: relative;
    transition: color .2s ease;
}
.accordion-button::after {
    display: none !important;
}
.accordion-button::before {
    content: '+';
    position: absolute; right: 24px; top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem; font-weight: 300;
    color: var(--brand-primary);
    transition: transform .25s ease;
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: rgba(74,124,247,0.08);
}
.accordion-button:not(.collapsed) {
    color: var(--brand-primary);
    box-shadow: none !important;
}
.accordion-button:not(.collapsed)::before {
    transform: translateY(-50%) rotate(45deg);
    background: rgba(74,124,247,0.15);
}
.accordion-body {
    padding: 0 24px 20px;
    font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.75;
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 72px 0;
    background: linear-gradient(135deg, #EEF3FA, #E2EBFA);
    border-radius: 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #F5A623, #FFD93D, #2EAF7D, #4A7CF7, #7BA7FF, #9B59B6);
}
.cta-section h2 {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    font-weight: 700; color: var(--text-primary); margin-bottom: 12px;
}
.cta-section p {
    font-size: 0.9375rem; color: var(--text-secondary); margin-bottom: 28px;
}

/* ===== Footer ===== */
.site-footer {
    background: #16233B; color: #A9B8D0;
    padding-top: 64px; margin-top: 88px;
    position: relative;
}
.site-footer::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF6B6B, #F5A623, #FFD93D, #2EAF7D, #4A7CF7, #7BA7FF, #9B59B6);
}
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .footer-logo {
    display: flex; align-items: center; gap: 8px;
    font-size: 1.25rem; font-weight: 700; color: #fff;
    margin-bottom: 12px;
}
.footer-brand .footer-desc {
    font-size: 0.875rem; line-height: 1.7; color: #A9B8D0;
    margin-bottom: 16px;
}
.footer-social { display: flex; gap: 10px; }
.footer-social a {
    width: 32px; height: 32px; border-radius: 50%;
    background: rgba(255,255,255,0.08); color: #A9B8D0;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.875rem; transition: all .2s ease;
}
.footer-social a:hover { background: var(--brand-primary); color: #fff; }
.footer-col h4 {
    font-size: 0.9375rem; font-weight: 600; color: #fff;
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
    font-size: 0.875rem; color: #A9B8D0; transition: color .2s ease;
}
.footer-col ul li a:hover { color: #fff; }
.footer-contact li {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.875rem;
}
.footer-contact li i { color: var(--brand-secondary); font-size: 0.8125rem; width: 16px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem; color: rgba(169,184,208,0.6);
}

/* ===== Bottom Fixed Bar ===== */
.bottom-fixed-bar {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 1040;
    height: 64px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--border-light);
    display: flex; align-items: center; justify-content: center;
    padding: 0 24px;
}
.bottom-bar-inner {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; max-width: 1140px;
}
.bottom-bar-text {
    font-size: 0.9375rem; font-weight: 600; color: var(--text-primary);
    display: flex; align-items: center; gap: 8px;
}
.bottom-bar-text .mini-icon {
    width: 24px; height: 24px; border-radius: 6px;
    background: linear-gradient(135deg, #FF6B6B, #F5A623, #FFD93D, #4A7CF7);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 0.625rem; color: #fff; font-weight: 700;
}
.bottom-bar-btn {
    padding: 8px 20px; font-size: 0.875rem;
}

/* ===== Fade-in Animation ===== */
.fade-in {
    opacity: 0; transform: translateY(16px);
    transition: opacity .5s ease, transform .5s ease;
}
.fade-in.visible {
    opacity: 1; transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .section { padding: 72px 0; }
    .hero { padding: 64px 0; }
    .hero-row { flex-direction: column; gap: 32px; }
    .hero-text-col, .hero-visual-col { flex: 1 1 100%; }
    .hero h1 { font-size: 2rem; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .scenario-block, .scenario-block.flip { flex-direction: column; gap: 24px; }
    .scenario-img, .scenario-text { flex: 1 1 100%; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .testimonial-row { grid-template-columns: repeat(2, 1fr); }
    .testimonial-card:last-child { grid-column: 1 / -1; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .countdown-bar { display: none; }
    .nav-badge { display: none; }
}
@media (max-width: 767px) {
    .section { padding: 56px 0; }
    .hero { padding: 48px 0; }
    .hero h1 { font-size: 1.75rem; }
    .hero-subtitle { font-size: 1rem; }
    .hero-btns { flex-direction: column; }
    .hero-btns .btn { width: 100%; }
    .feature-grid { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .testimonial-row { grid-template-columns: 1fr; }
    .testimonial-card:last-child { grid-column: auto; }
    .news-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-brand { grid-column: auto; }
    .bottom-bar-text { font-size: 0.8125rem; }
    .bottom-bar-btn { padding: 6px 14px; font-size: 0.8125rem; }
    .navbar-brand { font-size: 1.125rem; }
    .navbar-collapse {
        background: #fff; border-radius: 12px;
        padding: 16px; margin-top: 12px;
        box-shadow: var(--shadow-card);
    }
    .navbar-nav .nav-link { padding: 10px 12px !important; border-radius: 8px; }
    .navbar-nav .nav-link:hover { background: var(--bg-soft); }
    .nav-right { margin-top: 12px; }
    .nav-right .btn { width: 100%; }
    .hero-float-card { display: none; }
    .cta-section { border-radius: 16px; padding: 48px 24px; }
}
@media (max-width: 575px) {
    .bottom-fixed-bar { height: 56px; }
    body { padding-bottom: 56px; }
    .bottom-bar-text { font-size: 0.75rem; }
    .bottom-bar-text .mini-icon { display: none; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .stat-num { font-size: 1.5rem; }
    .section-header { margin-bottom: 32px; }
}

/* roulang page: article */
:root {
            --brand-primary: #4A7CF7;
            --brand-primary-dark: #3567D9;
            --brand-accent: #F5A623;
            --brand-accent-soft: #FFF4E0;
            --brand-secondary: #7BA7FF;
            --bg-body: #F7F9FC;
            --bg-card: #FFFFFF;
            --bg-soft: #EEF3FA;
            --text-primary: #16233B;
            --text-secondary: #5B6B85;
            --text-muted: #8A99B4;
            --border-light: #E6ECF5;
            --success: #2EAF7D;
            --warning: #F5A623;
            --shadow-card: 0 6px 24px rgba(74, 124, 247, 0.08);
            --shadow-hover: 0 12px 36px rgba(74, 124, 247, 0.14);
            --radius-lg: 16px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            padding-bottom: 64px;
            overflow-x: hidden;
        }

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

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

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

        button:focus,
        a:focus,
        input:focus {
            outline: 3px solid rgba(74, 124, 247, 0.3);
            outline-offset: 2px;
        }

        .container {
            max-width: 1140px;
        }

        /* ---- Header & Nav ---- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1030;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            height: 72px;
            display: flex;
            align-items: center;
        }

        .site-header .navbar {
            padding: 0;
        }

        .navbar-brand {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0;
            margin: 0;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary) !important;
            letter-spacing: -0.01em;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, #4A7CF7, #7BA7FF, #F5A623, #2EAF7D);
            border-radius: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 0.75rem;
            transform: rotate(45deg);
            box-shadow: 0 4px 12px rgba(74, 124, 247, 0.25);
            flex-shrink: 0;
        }

        .brand-icon span {
            transform: rotate(-45deg);
            display: inline-block;
            line-height: 1;
        }

        .brand-text {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 1.25rem;
        }

        .brand-text .name-zh {
            color: var(--brand-accent);
            font-weight: 700;
        }

        .navbar-nav {
            gap: 8px;
        }

        .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            transition: color 0.2s ease, background 0.2s ease;
            position: relative;
        }

        .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: rgba(74, 124, 247, 0.06);
        }

        .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, #4A7CF7, #7BA7FF, #F5A623);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-left: 16px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-accent-soft);
            color: #B26A00;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .nav-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--brand-accent);
            border-radius: 50%;
            display: inline-block;
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.2);
            }
        }

        .btn-primary-custom {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }

        .btn-primary-custom:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(74, 124, 247, 0.3);
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 3px 8px rgba(74, 124, 247, 0.2);
        }

        .btn-outline-custom {
            background: #fff;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }

        .btn-outline-custom:hover {
            background: rgba(74, 124, 247, 0.08);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(74, 124, 247, 0.12);
        }

        .btn-accent-custom {
            background: var(--brand-accent);
            color: #7A4A00;
            border: none;
            border-radius: var(--radius-sm);
            padding: 10px 24px;
            font-weight: 700;
            font-size: 0.95rem;
            transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
        }

        .btn-accent-custom:hover {
            background: #FFB84D;
            color: #7A4A00;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 166, 35, 0.35);
        }

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

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(74, 124, 247, 0.3);
            outline-offset: 2px;
        }

        /* ---- Article Page ---- */
        .article-page {
            padding: 40px 0 68px;
            min-height: 60vh;
        }

        .breadcrumb-wrap {
            max-width: 720px;
            margin: 0 auto 24px;
            font-size: 0.875rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
        }

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

        .breadcrumb-wrap a:hover {
            color: var(--brand-primary);
        }

        .breadcrumb-wrap .sep {
            color: #C0CADC;
        }

        .breadcrumb-wrap .current {
            color: var(--text-secondary);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 380px;
        }

        .article-header {
            max-width: 720px;
            margin: 0 auto 32px;
            text-align: center;
        }

        .article-header h1 {
            font-size: clamp(1.75rem, 3.2vw, 2.375rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .badge-category {
            display: inline-block;
            background: rgba(74, 124, 247, 0.1);
            color: var(--brand-primary);
            font-size: 0.8125rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-variant-numeric: tabular-nums;
        }

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            font-size: 1.0625rem;
            line-height: 1.85;
            color: var(--text-primary);
            word-wrap: break-word;
        }

        .article-body p {
            margin-bottom: 1.5em;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 2em;
            margin-bottom: 0.8em;
            padding-left: 0.75rem;
            border-left: 4px solid var(--brand-primary);
            line-height: 1.4;
            color: var(--text-primary);
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            line-height: 1.4;
            color: var(--text-primary);
        }

        .article-body h4 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-top: 1.4em;
            margin-bottom: 0.5em;
            color: var(--text-primary);
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5em;
            padding-left: 1.5em;
        }

        .article-body li {
            margin-bottom: 0.5em;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            border: 1px solid var(--border-light);
            margin: 1.5em 0;
            display: block;
        }

        .article-body blockquote {
            border-left: 4px solid var(--brand-primary);
            background: var(--bg-soft);
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: var(--text-secondary);
            font-style: normal;
        }

        .article-body blockquote p:last-child {
            margin-bottom: 0;
        }

        .article-body code {
            background: #2D2D3A;
            color: #E8E8F0;
            padding: 0.2em 0.5em;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
        }

        .article-body pre {
            background: #2D2D3A;
            color: #E8E8F0;
            padding: 1.25rem;
            border-radius: 12px;
            overflow-x: auto;
            margin: 1.5em 0;
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            font-size: inherit;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            font-size: 0.9375rem;
        }

        .article-body table th,
        .article-body table td {
            border: 1px solid var(--border-light);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body table th {
            background: var(--bg-soft);
            font-weight: 600;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border-light);
            margin: 2em 0;
        }

        .article-body a {
            color: var(--brand-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body a:hover {
            color: var(--brand-primary-dark);
        }

        .article-not-found {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 80px 40px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .article-not-found p {
            font-size: 1.125rem;
            color: var(--text-secondary);
            margin-bottom: 24px;
            font-weight: 500;
        }

        .article-footer-btn {
            max-width: 720px;
            margin: 32px auto 0;
            text-align: center;
        }

        /* ---- Related Section ---- */
        .related-section {
            margin-top: 64px;
        }

        .related-section h2 {
            text-align: center;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 32px;
            position: relative;
        }

        .related-section h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            background: linear-gradient(90deg, #4A7CF7, #7BA7FF, #F5A623);
            border-radius: 4px;
            margin: 12px auto 0;
        }

        .related-card {
            display: flex;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            height: 100%;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(74, 124, 247, 0.4);
        }

        .related-img {
            width: 160px;
            min-height: 140px;
            flex-shrink: 0;
            overflow: hidden;
            background: var(--bg-soft);
            aspect-ratio: 4/3;
        }

        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border: none;
            border-radius: 0;
            transition: transform 0.4s ease;
        }

        .related-card:hover .related-img img {
            transform: scale(1.03);
        }

        .related-content {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .related-content .badge-category {
            align-self: flex-start;
            margin-bottom: 8px;
        }

        .related-content h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover .related-content h3 {
            color: var(--brand-primary);
        }

        .related-content p {
            font-size: 0.875rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            line-height: 1.6;
        }

        /* ---- Footer ---- */
        .site-footer {
            background: #16233B;
            color: #A9B8D0;
            margin-top: 0;
        }

        .site-footer .footer-top-line {
            height: 4px;
            background: linear-gradient(90deg, #4A7CF7, #7BA7FF, #F5A623, #2EAF7D, #F5A623);
            border: none;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding: 56px 0 40px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 9px;
            font-size: 0.625rem;
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.75;
            color: #A9B8D0;
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: #A9B8D0;
            font-size: 1rem;
            transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 3px;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent));
        }

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

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

        .footer-col ul li a {
            color: #A9B8D0;
            font-size: 0.9rem;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
        }

        .footer-contact li i {
            color: var(--brand-secondary);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.8rem;
            color: rgba(169, 184, 208, 0.6);
            margin: 0;
        }

        /* ---- Bottom CTA Bar ---- */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1020;
            height: 64px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            box-shadow: 0 -4px 20px rgba(22, 35, 59, 0.04);
        }

        .bottom-cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .bottom-cta-bar .cta-text {
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-primary);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bottom-cta-bar .btn-accent-custom {
            padding: 8px 20px;
            font-size: 0.875rem;
            flex-shrink: 0;
        }

        /* ---- Responsive ---- */
        @media (max-width: 991.98px) {
            .site-header {
                height: auto;
                padding: 10px 0;
            }

            .navbar-collapse {
                background: #fff;
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                padding: 16px;
                margin-top: 10px;
                box-shadow: var(--shadow-card);
                border: 1px solid var(--border-light);
            }

            .navbar-nav {
                gap: 4px;
            }

            .nav-right {
                margin-left: 0;
                margin-top: 14px;
                flex-wrap: wrap;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
                padding: 44px 0 32px;
            }

            .related-img {
                width: 130px;
            }
        }

        @media (max-width: 767.98px) {
            .article-page {
                padding: 24px 0 48px;
            }

            .breadcrumb-wrap {
                margin-bottom: 16px;
                font-size: 0.8125rem;
            }

            .breadcrumb-wrap .current {
                max-width: 240px;
            }

            .article-header {
                margin-bottom: 24px;
            }

            .article-header h1 {
                font-size: 1.5rem;
                line-height: 1.35;
            }

            .article-body {
                padding: 24px 20px;
                font-size: 0.96875rem;
                line-height: 1.8;
                border-radius: 12px;
            }

            .article-body h2 {
                font-size: 1.3125rem;
            }

            .article-body h3 {
                font-size: 1.125rem;
            }

            .related-section {
                margin-top: 48px;
            }

            .related-section h2 {
                font-size: 1.5rem;
                margin-bottom: 24px;
            }

            .related-card {
                flex-direction: column;
            }

            .related-img {
                width: 100%;
                aspect-ratio: 16/9;
                min-height: auto;
            }

            .related-content {
                padding: 18px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding: 40px 0 28px;
            }

            .bottom-cta-bar {
                height: 56px;
            }

            .bottom-cta-bar .cta-text {
                font-size: 0.8125rem;
                max-width: 160px;
            }

            .bottom-cta-bar .btn-accent-custom {
                padding: 6px 14px;
                font-size: 0.8125rem;
            }
        }

        @media (max-width: 575.98px) {
            .article-meta {
                gap: 8px;
                flex-direction: column;
                align-items: center;
            }

            .breadcrumb-wrap .current {
                max-width: 200px;
            }

            .article-not-found {
                padding: 48px 24px;
            }

            .bottom-cta-bar .cta-text {
                max-width: 120px;
            }
        }

/* roulang page: category2 */
:root {
            --brand-primary: #4A7CF7;
            --brand-primary-dark: #3567D9;
            --brand-accent: #F5A623;
            --brand-accent-soft: #FFF4E0;
            --brand-secondary: #7BA7FF;
            --bg-body: #F7F9FC;
            --bg-card: #ffffff;
            --bg-soft: #EEF3FA;
            --text-primary: #16233B;
            --text-secondary: #5B6B85;
            --text-muted: #8A99B4;
            --border-light: #E6ECF5;
            --success: #2EAF7D;
            --warning: #F5A623;
            --shadow-card: 0 6px 24px rgba(74, 124, 247, 0.08);
            --shadow-hover: 0 12px 36px rgba(74, 124, 247, 0.14);
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-xl: 20px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            padding-bottom: 64px;
        }

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

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

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

        .container {
            max-width: 1140px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
        }

        .site-header .navbar {
            min-height: 72px;
        }

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

        .brand-icon {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #4A7CF7 0%, #7BA7FF 50%, #F5A623 100%);
            border-radius: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            line-height: 1;
        }

        .brand-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .brand-text .name-zh {
            color: var(--brand-accent);
        }

        .navbar-nav {
            gap: 8px;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary) !important;
            padding: 8px 16px !important;
            border-radius: 6px;
            transition: all 0.2s ease;
            position: relative;
        }

        .nav-link:hover {
            color: var(--brand-primary) !important;
            background: rgba(74, 124, 247, 0.05);
        }

        .nav-link.active {
            color: var(--brand-primary) !important;
            font-weight: 600;
            background: rgba(74, 124, 247, 0.07);
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 3px;
            border-radius: 999px;
            background: linear-gradient(90deg, #4A7CF7, #F5A623, #7BA7FF);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-accent-soft);
            color: #8A5A00;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
            white-space: nowrap;
        }

        .nav-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--warning);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 166, 35, 0.5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(245, 166, 35, 0);
            }
        }

        .btn-primary-custom {
            background: var(--brand-primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.625rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

        .btn-primary-custom:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(74, 124, 247, 0.25);
        }

        .btn-primary-custom:focus,
        .btn-outline-custom:focus,
        .nav-link:focus,
        .accordion-button:focus {
            outline: 3px solid rgba(74, 124, 247, 0.3);
            outline-offset: 2px;
            box-shadow: none;
        }

        .btn-outline-custom {
            background: #fff;
            color: var(--brand-primary);
            border: 1px solid var(--brand-primary);
            border-radius: var(--radius-md);
            padding: 0.625rem 1.5rem;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

        .btn-outline-custom:hover {
            background: rgba(74, 124, 247, 0.08);
            color: var(--brand-primary-dark);
            border-color: var(--brand-primary-dark);
            transform: translateY(-2px);
        }

        .btn-accent-custom {
            background: var(--brand-accent);
            color: #7A4A00;
            border: none;
            border-radius: var(--radius-md);
            padding: 0.75rem 2rem;
            font-weight: 700;
            font-size: 1rem;
            transition: all 0.25s ease;
        }

        .btn-accent-custom:hover {
            background: #FFB83D;
            color: #7A4A00;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(245, 166, 35, 0.3);
        }

        .announcement-bar {
            background: linear-gradient(90deg, #EEF3FA, #E2EBFA);
            border-top: 1px solid var(--border-light);
            padding: 8px 0;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .announcement-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .countdown {
            display: flex;
            align-items: center;
            gap: 8px;
            font-variant-numeric: tabular-nums;
            font-weight: 600;
            color: var(--text-primary);
        }

        .countdown .cd-item {
            background: #fff;
            border-radius: 6px;
            padding: 2px 8px;
            border: 1px solid var(--border-light);
            font-weight: 700;
            color: var(--brand-primary);
        }

        .navbar-toggler {
            border: none;
            padding: 4px 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(74, 124, 247, 0.3);
        }

        /* ===== 页头 Hero ===== */
        .page-hero {
            position: relative;
            padding: 64px 0 72px;
            background: var(--bg-body);
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, rgba(74, 124, 247, 0.6), rgba(245, 166, 35, 0.6), rgba(123, 167, 255, 0.6), rgba(245, 166, 35, 0.5), rgba(74, 124, 247, 0.5));
        }

        .page-hero .hero-wrapper {
            display: flex;
            align-items: center;
            gap: 48px;
        }

        .hero-copy {
            flex: 1 1 60%;
        }

        .hero-visual {
            flex: 1 1 40%;
            position: relative;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(74, 124, 247, 0.1);
            color: var(--brand-primary);
            border: 1px solid rgba(74, 124, 247, 0.15);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .hero-badge i {
            font-size: 0.75rem;
        }

        .page-hero h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin: 0 0 20px;
        }

        .page-hero h1 .highlight {
            color: var(--brand-primary);
        }

        .page-hero .hero-subtitle {
            font-size: 1.125rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 560px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-visual .visual-card {
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border-light);
            background: #fff;
            position: relative;
        }

        .hero-visual .visual-card img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .float-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-radius: 12px;
            padding: 12px 18px;
            box-shadow: 0 8px 24px rgba(22, 35, 59, 0.12);
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid rgba(255, 255, 255, 0.6);
        }

        .float-badge .num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--brand-primary);
            line-height: 1;
        }

        .float-badge .label {
            font-size: 0.8125rem;
            color: var(--text-secondary);
            line-height: 1.3;
        }

        .trust-line {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            color: var(--text-secondary);
            font-size: 0.875rem;
        }

        .trust-line span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .trust-line i {
            color: var(--brand-primary);
            font-size: 0.875rem;
        }

        /* ===== 通用区块 ===== */
        .section-block {
            padding: 88px 0;
        }

        .section-block .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-block .section-header .section-tag {
            display: inline-block;
            background: var(--brand-accent-soft);
            color: #8A5A00;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-block .section-header h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
        }

        .section-block .section-header p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.7;
            margin: 0;
        }

        .bg-soft-section {
            background: var(--bg-soft);
        }

        /* ===== 价值卖点 ===== */
        .value-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            position: relative;
            height: 100%;
            transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            overflow: hidden;
        }

        .value-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
        }

        .value-card:nth-child(1)::before {
            background: var(--brand-primary);
        }

        .value-card:nth-child(2)::before {
            background: var(--brand-accent);
        }

        .value-card:nth-child(3)::before {
            background: var(--brand-secondary);
        }

        .value-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(74, 124, 247, 0.4);
        }

        .value-card .card-num {
            font-size: 2.5rem;
            font-weight: 300;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 16px;
            display: block;
        }

        .value-card:nth-child(2) {
            background: var(--bg-soft);
            border-color: rgba(74, 124, 247, 0.2);
        }

        .value-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 18px;
            color: var(--brand-primary);
            background: rgba(74, 124, 247, 0.1);
        }

        .value-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .value-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 应用场景交替 ===== */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 72px;
        }

        .scenario-row:last-child {
            margin-bottom: 0;
        }

        .scenario-row.reverse {
            flex-direction: row-reverse;
        }

        .scenario-img {
            flex: 1;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
        }

        .scenario-img img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scenario-img:hover img {
            transform: scale(1.03);
        }

        .scenario-text {
            flex: 1;
        }

        .scenario-text .scenario-tag {
            display: inline-block;
            background: rgba(74, 124, 247, 0.1);
            color: var(--brand-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .scenario-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .scenario-text p {
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .scenario-text ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px;
        }

        .scenario-text ul li {
            position: relative;
            padding-left: 22px;
            margin-bottom: 8px;
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        .scenario-text ul li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-secondary);
        }

        .scenario-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--brand-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.25s ease;
        }

        .scenario-link:hover {
            gap: 10px;
            color: var(--brand-primary-dark);
        }

        /* ===== 流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .process-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            position: relative;
            height: 100%;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .process-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .process-step {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
            margin: 0 auto 20px;
            position: relative;
        }

        .process-step::after {
            content: "";
            position: absolute;
            top: 50%;
            left: calc(100% + 28px);
            width: 56px;
            height: 2px;
            background: linear-gradient(90deg, rgba(74, 124, 247, 0.4), rgba(245, 166, 35, 0.4));
        }

        .process-item:last-child .process-step::after {
            display: none;
        }

        .process-item h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .process-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 统计模块 ===== */
        .stats-section {
            padding: 72px 0;
            background: linear-gradient(135deg, #EEF3FA, #E2EBFA);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .stats-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stats-item .stat-num {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--brand-primary);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stats-item .stat-label {
            font-size: 0.9375rem;
            color: var(--text-secondary);
        }

        .quote-row {
            margin-top: 56px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .quote-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            position: relative;
        }

        .quote-card::before {
            content: "\201C";
            position: absolute;
            top: 12px;
            left: 20px;
            font-size: 3rem;
            color: rgba(74, 124, 247, 0.2);
            font-family: Georgia, serif;
            line-height: 1;
        }

        .quote-card p {
            font-size: 0.9375rem;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 12px 0 16px;
            padding-left: 24px;
        }

        .quote-card .quote-author {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-primary);
            padding-left: 24px;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 12px !important;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: 0 2px 8px rgba(22, 35, 59, 0.04);
        }

        .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--bg-card);
            padding: 18px 24px;
            border: none;
            box-shadow: none;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(74, 124, 247, 0.04);
            color: var(--brand-primary);
        }

        .accordion-button::after {
            background-image: none;
            content: "+";
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--brand-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            width: 24px;
            height: 24px;
            line-height: 1;
            transition: transform 0.3s ease;
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(45deg);
        }

        .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.9375rem;
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-block {
            padding: 72px 0;
            background: linear-gradient(135deg, #4A7CF7 0%, #3567D9 100%);
            border-radius: var(--radius-xl);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-block::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #fff 0%, rgba(255, 255, 255, 0.4) 100%);
        }

        .cta-block h2 {
            color: #fff;
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            margin-bottom: 14px;
        }

        .cta-block p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

        .cta-block .btn-accent-custom {
            background: #fff;
            color: var(--brand-primary);
            font-weight: 700;
        }

        .cta-block .btn-accent-custom:hover {
            background: #f8fafc;
            color: var(--brand-primary-dark);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #16233B;
            color: #A9B8D0;
            padding: 64px 0 0;
            position: relative;
            margin-top: 0;
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #4A7CF7, #7BA7FF, #F5A623, #7BA7FF, #4A7CF7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-logo .brand-icon {
            background: linear-gradient(135deg, #4A7CF7, #F5A623);
        }

        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            color: #A9B8D0;
            margin-bottom: 20px;
            max-width: 280px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #A9B8D0;
            font-size: 0.9375rem;
            transition: all 0.2s ease;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-social a:hover {
            background: var(--brand-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 18px;
        }

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

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

        .footer-col ul a {
            color: #A9B8D0;
            font-size: 0.9rem;
            transition: color 0.2s ease;
        }

        .footer-col ul a:hover {
            color: #fff;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: #A9B8D0;
        }

        .footer-contact i {
            width: 16px;
            color: var(--brand-secondary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
        }

        .footer-bottom p {
            margin: 0;
            font-size: 0.8rem;
            color: rgba(169, 184, 208, 0.7);
        }

        /* ===== 底部固定转化条 ===== */
        .bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--border-light);
            padding: 10px 0;
            display: flex;
            align-items: center;
            box-shadow: 0 -4px 20px rgba(22, 35, 59, 0.06);
        }

        .bottom-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .bottom-cta .cta-text {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .bottom-cta .btn-primary-custom {
            padding: 8px 20px;
            font-size: 0.875rem;
            white-space: nowrap;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .site-header .navbar {
                min-height: 60px;
            }

            .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: 12px;
                box-shadow: var(--shadow-card);
                margin-top: 10px;
            }

            .nav-right {
                margin-top: 16px;
                justify-content: space-between;
            }

            .announcement-bar .container {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .page-hero .hero-wrapper {
                flex-direction: column;
            }

            .hero-copy {
                text-align: center;
            }

            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-btns {
                justify-content: center;
            }

            .trust-line {
                justify-content: center;
            }

            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
            }

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

            .process-step::after {
                display: none;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

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

        @media (max-width: 767.98px) {
            .section-block {
                padding: 56px 0;
            }

            .page-hero {
                padding: 48px 0 56px;
            }

            .hero-btns .btn {
                width: 100%;
                margin-bottom: 8px;
            }

            .value-card {
                margin-bottom: 16px;
            }

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

            .quote-row {
                grid-template-columns: 1fr;
            }

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

            .bottom-cta .cta-text {
                font-size: 0.8125rem;
            }

            .bottom-cta .btn-primary-custom {
                padding: 6px 16px;
                font-size: 0.8125rem;
            }
        }

        @media (max-width: 575.98px) {
            .announcement-bar {
                display: none;
            }

            .page-hero .hero-wrapper {
                gap: 32px;
            }

            .hero-visual .float-badge {
                left: 12px;
                bottom: 12px;
                padding: 10px 14px;
            }

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

            .stats-item .stat-num {
                font-size: 2rem;
            }

            .scenario-row {
                gap: 24px;
            }

            .bottom-cta {
                padding: 8px 0;
            }

            .bottom-cta .cta-text {
                font-size: 0.75rem;
            }

            .bottom-cta .btn-primary-custom {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category1 */
:root {
            --brand-primary: #4A7CF7;
            --brand-primary-dark: #3567D9;
            --brand-accent: #F5A623;
            --brand-accent-soft: #FFF4E0;
            --brand-secondary: #7BA7FF;
            --bg-body: #F7F9FC;
            --bg-card: #FFFFFF;
            --bg-soft: #EEF3FA;
            --text-primary: #16233B;
            --text-secondary: #5B6B85;
            --text-muted: #8A99B4;
            --border-light: #E6ECF5;
            --success: #2EAF7D;
            --warning: #F5A623;
            --shadow-card: 0 6px 24px rgba(74, 124, 247, 0.08);
            --shadow-hover: 0 12px 36px rgba(74, 124, 247, 0.14);
            --radius-lg: 16px;
            --radius-md: 8px;
            --radius-pill: 999px;
            --rainbow: linear-gradient(90deg, #4A7CF7, #F5A623, #2EAF7D, #7BA7FF, #F5A623, #4A7CF7, #F5A623);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 1rem;
            padding-bottom: 64px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--brand-primary);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--brand-primary-dark);
        }

        ul,
        ol {
            list-style: none;
        }

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

        a:focus-visible,
        button:focus-visible,
        .btn:focus-visible,
        .accordion-button:focus-visible {
            outline: 3px solid rgba(74, 124, 247, 0.3);
            outline-offset: 2px;
        }

        .container {
            max-width: 1140px;
            padding-left: 20px;
            padding-right: 20px;
            margin-right: auto;
            margin-left: auto;
            width: 100%;
        }

        .section-padding {
            padding: 88px 0;
        }

        .section-head {
            margin-bottom: 56px;
            text-align: center;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            font-size: 1rem;
            line-height: 1.75;
        }

        .rainbow-bar {
            height: 4px;
            background: var(--rainbow);
            border: none;
        }

        /* ---------- Buttons ---------- */
        .btn-primary-custom,
        .btn-secondary-custom,
        .btn-accent-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 1rem;
            padding: 0.625rem 1.5rem;
            border-radius: var(--radius-md);
            border: 2px solid transparent;
            transition: background .25s ease, transform .25s ease, box-shadow .25s ease, color .25s ease, border-color .25s ease;
            text-align: center;
        }

        .btn-primary-custom {
            background: var(--brand-primary);
            color: #fff;
        }

        .btn-primary-custom:hover {
            background: var(--brand-primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(74, 124, 247, 0.28);
        }

        .btn-secondary-custom {
            background: #fff;
            color: var(--brand-primary);
            border-color: var(--brand-primary);
        }

        .btn-secondary-custom:hover {
            background: rgba(74, 124, 247, 0.08);
            color: var(--brand-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(74, 124, 247, 0.12);
        }

        .btn-accent-custom {
            background: var(--brand-accent);
            color: #7A4A00;
            font-weight: 700;
        }

        .btn-accent-custom:hover {
            background: #F7B14A;
            color: #7A4A00;
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(245, 166, 35, 0.32);
        }

        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.875rem;
            border-radius: 6px;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1020;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border-light);
            min-height: 72px;
            transition: box-shadow .25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(22, 35, 59, 0.06);
        }

        .site-header .navbar {
            min-height: 72px;
            padding: 0;
        }

        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            margin-right: 8px;
            border-radius: 8px;
            background: linear-gradient(135deg, #4A7CF7, #F5A623, #2EAF7D);
            color: #fff;
            font-weight: 700;
            font-size: .75rem;
            box-shadow: 0 2px 8px rgba(74, 124, 247, 0.25);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .brand-text .name-zh {
            color: var(--brand-accent);
            font-weight: 800;
        }

        .navbar-light .navbar-nav .nav-link {
            color: var(--text-secondary);
            font-size: .95rem;
            font-weight: 500;
            padding: 10px 16px;
            margin: 0 4px;
            border-radius: 8px;
            transition: color .2s ease, background .2s ease;
            position: relative;
        }

        .navbar-light .navbar-nav .nav-link:hover {
            color: var(--brand-primary);
            background: rgba(74, 124, 247, 0.06);
        }

        .navbar-light .navbar-nav .nav-link.active {
            color: var(--brand-primary);
            font-weight: 600;
        }

        .navbar-light .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 4px;
            border-radius: 4px;
            background: var(--rainbow);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-left: 12px;
        }

        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--brand-accent-soft);
            color: #B7791F;
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            white-space: nowrap;
        }

        .nav-badge .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-accent);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .55;
                transform: scale(0.8);
            }
        }

        .navbar-toggler {
            border: none;
            padding: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: none;
            outline: 3px solid rgba(74, 124, 247, 0.3);
        }

        /* ---------- Page Hero ---------- */
        .page-hero {
            position: relative;
            padding: 88px 0 72px;
            background: linear-gradient(135deg, #F0F5FC 0%, #E2EBFA 55%, #FDF4E3 100%);
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--rainbow);
            z-index: 2;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url("/assets/images/backpic/back-1.webp");
            background-size: cover;
            background-position: center;
            opacity: 0.07;
            z-index: 0;
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
        }

        .page-hero-inner {
            max-width: 820px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(74, 124, 247, 0.18);
            color: var(--brand-primary);
            font-size: .8125rem;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            box-shadow: 0 2px 10px rgba(74, 124, 247, 0.06);
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: clamp(1.75rem, 3.5vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .hero-sub {
            font-size: 1.125rem;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 640px;
            margin: 0 auto 32px;
        }

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

        .hero-trust {
            display: flex;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 36px;
            color: var(--text-muted);
            font-size: .875rem;
            font-weight: 500;
        }

        .hero-trust li {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .hero-trust li::before {
            content: "";
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--brand-accent);
        }

        .deco-dot {
            position: absolute;
            border-radius: 50%;
            opacity: .35;
            z-index: 0;
        }

        .deco-dot-1 {
            width: 120px;
            height: 120px;
            background: rgba(74, 124, 247, 0.12);
            top: 30px;
            right: 8%;
        }

        .deco-dot-2 {
            width: 52px;
            height: 52px;
            background: rgba(245, 166, 35, 0.2);
            bottom: 40px;
            left: 10%;
        }

        .deco-dot-3 {
            width: 28px;
            height: 28px;
            background: rgba(46, 175, 125, 0.18);
            top: 40%;
            left: 6%;
        }

        /* ---------- Feature Overview ---------- */
        .feature-overview {
            background: var(--bg-body);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
            transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--brand-primary);
        }

        .feature-card:nth-child(2)::before {
            background: var(--brand-accent);
        }

        .feature-card:nth-child(3)::before {
            background: var(--brand-secondary);
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(74, 124, 247, 0.4);
        }

        .feature-card:nth-child(2) {
            background: var(--bg-soft);
            border-color: rgba(74, 124, 247, 0.2);
        }

        .feature-number {
            font-size: 2.5rem;
            font-weight: 300;
            color: var(--brand-primary);
            line-height: 1;
            margin-bottom: 18px;
            font-variant-numeric: tabular-nums;
        }

        .feature-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: .95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* ---------- Feature Details ---------- */
        .feature-details {
            background: var(--bg-card);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }

        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 88px;
        }

        .feature-row:last-child {
            margin-bottom: 0;
        }

        .feature-row.reverse .feature-media {
            order: 2;
        }

        .feature-row.reverse .feature-content {
            order: 1;
        }

        .feature-media {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            aspect-ratio: 16/10;
            position: relative;
            background: var(--bg-soft);
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .feature-media:hover img {
            transform: scale(1.03);
        }

        .media-tag {
            position: absolute;
            left: 16px;
            bottom: 16px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--text-primary);
            font-size: .8125rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            box-shadow: 0 2px 10px rgba(22, 35, 59, 0.08);
            backdrop-filter: blur(4px);
        }

        .feature-content .feature-chip {
            display: inline-block;
            background: rgba(74, 124, 247, 0.08);
            color: var(--brand-primary);
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 14px;
        }

        .feature-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 14px;
            position: relative;
            padding-left: 18px;
        }

        .feature-content h3::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: linear-gradient(to bottom, var(--brand-primary), var(--brand-accent));
        }

        .feature-content p {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.8;
        }

        .feature-list {
            margin-top: 16px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 8px;
            color: var(--text-secondary);
            font-size: .95rem;
            line-height: 1.6;
        }

        .feature-list li i {
            color: var(--success);
            margin-top: 4px;
            font-size: .875rem;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 20px;
            font-weight: 600;
            font-size: .95rem;
            color: var(--brand-primary);
            transition: gap .25s ease, color .25s ease;
        }

        .text-link:hover {
            gap: 10px;
            color: var(--brand-primary-dark);
        }

        /* ---------- Metrics ---------- */
        .metrics-section {
            background: #16233B;
            color: #fff;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .metrics-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--rainbow);
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .metric-value span {
            color: var(--brand-accent);
        }

        .metric-label {
            color: #A9B8D0;
            font-size: .9rem;
            margin-top: 6px;
        }

        /* ---------- Steps ---------- */
        .steps-section {
            background: var(--bg-soft);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            box-shadow: var(--shadow-card);
            transition: transform .25s ease, box-shadow .25s ease;
        }

        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(74, 124, 247, 0.1);
            color: var(--brand-primary);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 18px;
            font-variant-numeric: tabular-nums;
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-item p {
            font-size: .9rem;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg-body);
        }

        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-section .accordion-item {
            border: 1px solid var(--border-light);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            background: var(--bg-card);
            box-shadow: var(--shadow-card);
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .faq-section .accordion-item:hover {
            border-color: rgba(74, 124, 247, 0.25);
        }

        .faq-section .accordion-button {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            padding: 20px 24px;
            box-shadow: none;
            transition: color .2s ease, background .2s ease;
        }

        .faq-section .accordion-button:not(.collapsed) {
            color: var(--brand-primary);
            background: rgba(74, 124, 247, 0.04);
        }

        .faq-section .accordion-button:focus {
            box-shadow: none;
        }

        .faq-section .accordion-button::after {
            content: "+";
            background-image: none;
            font-size: 1.5rem;
            font-weight: 300;
            color: var(--brand-primary);
            width: 24px;
            height: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: transform .25s ease;
            line-height: 1;
        }

        .faq-section .accordion-button:not(.collapsed)::after {
            content: "−";
            color: var(--brand-primary);
        }

        .faq-section .accordion-body {
            color: var(--text-secondary);
            padding: 0 24px 20px;
            font-size: .95rem;
            line-height: 1.75;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(135deg, #EEF3FA 0%, #E2EBFA 50%, #FDF4E3 100%);
            padding: 88px 0;
            text-align: center;
            border-top: 1px solid var(--border-light);
        }

        .cta-section h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 16px auto 32px;
            font-size: 1rem;
        }

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

        /* ---------- Footer ---------- */
        .site-footer {
            background: #16233B;
            color: #A9B8D0;
            padding: 64px 0 0;
            position: relative;
        }

        .site-footer>.rainbow-bar {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-logo .brand-icon {
            width: 30px;
            height: 30px;
            font-size: .7rem;
            margin-right: 0;
        }

        .footer-desc {
            font-size: .9rem;
            line-height: 1.7;
            color: #A9B8D0;
            max-width: 260px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #A9B8D0;
            transition: background .25s ease, color .25s ease, transform .25s ease;
            font-size: .875rem;
        }

        .footer-social a:hover {
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            color: #A9B8D0;
            font-size: .9rem;
            transition: color .25s ease, padding-left .25s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: .9rem;
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: var(--brand-secondary);
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: .8rem;
            color: rgba(169, 184, 208, 0.7);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* ---------- Bottom CTA ---------- */
        .bottom-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-top: 1px solid var(--border-light);
            z-index: 1030;
            display: flex;
            align-items: center;
            transition: transform .3s ease;
            box-shadow: 0 -2px 12px rgba(22, 35, 59, 0.04);
        }

        .bottom-cta .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .bottom-cta .cta-text {
            font-size: .9rem;
            color: var(--text-primary);
            font-weight: 600;
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .bottom-cta .cta-text-sub {
            color: var(--text-muted);
            font-weight: 400;
        }

        .bottom-cta .btn {
            flex-shrink: 0;
        }

        /* ---------- Reveal Animation ---------- */
        .reveal {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity .5s ease, transform .5s ease;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 991.98px) {
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .feature-card:nth-child(3) {
                grid-column: span 2;
                max-width: 100%;
            }

            .feature-row {
                grid-template-columns: 1fr;
                gap: 32px;
                margin-bottom: 56px;
            }

            .feature-row.reverse .feature-media {
                order: 0;
            }

            .feature-row.reverse .feature-content {
                order: 1;
            }

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

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

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

            .page-hero {
                padding: 64px 0 56px;
            }

            .section-padding {
                padding: 72px 0;
            }
        }

        @media (max-width: 767.98px) {
            .site-header {
                min-height: 60px;
            }

            .site-header .navbar {
                min-height: 60px;
            }

            .nav-right .nav-badge {
                display: none;
            }

            .page-hero {
                padding: 48px 0 40px;
            }

            .page-hero h1 {
                font-size: 1.75rem;
            }

            .hero-sub {
                font-size: 1rem;
            }

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

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

            .hero-trust {
                gap: 12px;
            }

            .section-padding {
                padding: 56px 0;
            }

            .section-head {
                margin-bottom: 40px;
            }

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

            .feature-card:nth-child(3) {
                grid-column: auto;
            }

            .feature-number {
                font-size: 2rem;
            }

            .feature-row {
                gap: 24px;
                margin-bottom: 48px;
            }

            .feature-content h3 {
                font-size: 1.25rem;
            }

            .metrics-section {
                padding: 56px 0;
            }

            .metric-value {
                font-size: 1.5rem;
            }

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

            .cta-section {
                padding: 64px 0;
            }

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

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

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

            .footer-col ul li a {
                font-size: .85rem;
            }

            .footer-bottom p {
                font-size: .75rem;
            }

            .navbar-collapse {
                background: #fff;
                border: 1px solid var(--border-light);
                border-radius: 12px;
                padding: 16px 20px;
                margin-top: 8px;
                box-shadow: 0 8px 24px rgba(22, 35, 59, 0.08);
            }

            .navbar-light .navbar-nav .nav-link {
                padding: 12px 12px;
            }

            .nav-right {
                margin-left: 0;
                margin-top: 12px;
                padding-top: 12px;
                border-top: 1px solid var(--border-light);
            }
        }

        @media (max-width: 575.98px) {
            body {
                padding-bottom: 56px;
            }

            .bottom-cta {
                height: 56px;
            }

            .bottom-cta .cta-text-sub {
                display: none;
            }

            .bottom-cta .cta-text {
                font-size: .82rem;
            }

            .metrics-grid {
                gap: 20px 12px;
            }

            .metric-value {
                font-size: 1.35rem;
            }

            .metric-label {
                font-size: .8125rem;
            }

            .hero-trust li {
                font-size: .8125rem;
            }
        }