/* roulang page: index */
:root {
    --bg-base: #060B14;
    --bg-elev: #0C172B;
    --primary-300: #6EE7FF;
    --primary-400: #38C8FF;
    --primary-500: #2A6EFF;
    --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
    --accent: #FF7A2F;
    --success: #00E88F;
    --text-strong: #EDF4FF;
    --text-body: #B8C7E0;
    --text-muted: #7F92B8;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.12);
    --glass-highlight: rgba(255,255,255,0.8);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-body);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    padding-top: 64px;
}
img { max-width: 100%; display: block; }
a { color: var(--primary-300); text-decoration: none; transition: all 0.3s ease; }
a:hover { color: var(--primary-300); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 48px);
    padding-right: clamp(20px, 4vw, 48px);
}
div.container { width: 100%; }

/* 导航 */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    z-index: 1000;
    background: rgba(6,11,20,0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease;
}
.site-header.header-scrolled {
    background: rgba(6,11,20,0.85);
    border-bottom-color: rgba(255,255,255,0.08);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-strong);
    font-weight: 700;
    font-size: 1.15rem;
    letter-spacing: 0.01em;
    flex-shrink: 0;
}
.logo-mark {
    width: 32px;
    height: 32px;
    border-radius: 9px;
    background: var(--grad-primary);
    display: grid;
    place-items: center;
    font-size: 13px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 0 16px rgba(0,212,255,0.35);
    font-family: var(--font-num);
    letter-spacing: 0;
}
.logo-text { white-space: nowrap; }
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    backdrop-filter: blur(12px);
    overflow-x: auto;
    scrollbar-width: none;
}
.main-nav::-webkit-scrollbar { display: none; }
.nav-tab {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-body);
    white-space: nowrap;
    letter-spacing: 0.03em;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}
.nav-tab:hover {
    color: var(--text-strong);
    background: rgba(255,255,255,0.06);
}
.nav-tab.active {
    color: var(--text-strong);
    background: rgba(255,255,255,0.1);
    border-color: rgba(56,200,255,0.4);
    box-shadow: 0 0 14px rgba(56,200,255,0.2);
}
.btn-nav-cta {
    height: 36px;
    padding: 0 18px;
    border-radius: 999px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 0 16px rgba(0,212,255,0.25);
    transition: all 0.25s ease;
    border: none;
    white-space: nowrap;
}
.btn-nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(0,212,255,0.45);
    color: #fff;
}
.mobile-menu-btn {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    align-items: center;
    justify-content: center;
    color: var(--text-strong);
    font-size: 18px;
    transition: all 0.25s ease;
}
.mobile-menu-btn:hover { background: rgba(255,255,255,0.1); }
.mobile-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 12px;
    right: 12px;
    background: rgba(10,18,32,0.95);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 16px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
    flex-direction: column;
    gap: 6px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
    display: block;
    padding: 12px 16px;
    border-radius: 10px;
    color: var(--text-body);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.2s;
}
.mobile-nav a:hover { background: rgba(255,255,255,0.06); color: var(--text-strong); }
.mobile-nav a.m-active { background: rgba(56,200,255,0.1); color: var(--primary-300); }

/* 倒计时条 */
.countdown-bar {
    background: rgba(255,255,255,0.04);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    position: relative;
    z-index: 50;
}
.countdown-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-top: 10px;
    padding-bottom: 10px;
    flex-wrap: wrap;
}
.countdown-tag {
    background: var(--accent);
    color: #0A0F1A;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.countdown-display {
    display: flex;
    align-items: center;
    gap: 8px;
}
.count-unit {
    display: flex;
    align-items: baseline;
    gap: 4px;
    background: rgba(56,200,255,0.08);
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid rgba(56,200,255,0.15);
}
.count-unit span {
    font-family: var(--font-num);
    font-size: clamp(1.2rem, 3vw, 1.7rem);
    font-weight: 700;
    color: var(--primary-300);
    text-shadow: 0 0 12px rgba(56,200,255,0.35);
    font-feature-settings: "tnum";
    line-height: 1.2;
}
.count-unit small {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}
.count-sep {
    color: var(--text-muted);
    font-weight: 700;
    font-family: var(--font-num);
    font-size: 1.1rem;
    opacity: 0.7;
}

/* Hero */
.hero {
    position: relative;
    min-height: 640px;
    display: flex;
    align-items: center;
    background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    overflow: hidden;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 20%, rgba(42,110,255,0.3), transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(0,212,255,0.18), transparent 50%),
                linear-gradient(180deg, rgba(6,11,20,0.75), var(--bg-base) 92%);
}
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 18px);
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 2;
    padding-top: 64px;
    padding-bottom: 64px;
    width: 100%;
}
.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 999px;
    background: rgba(56,200,255,0.1);
    border: 1px solid rgba(56,200,255,0.3);
    color: var(--primary-300);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.04em;
    margin-bottom: 28px;
}
.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    color: var(--text-strong);
    letter-spacing: 0.01em;
    line-height: 1.25;
    max-width: 780px;
    margin-bottom: 20px;
}
.hero-sub {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-body);
    max-width: 640px;
    margin-bottom: 36px;
    line-height: 1.7;
}
.hero-cta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 52px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 12px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0,212,255,0.25);
    transition: all 0.3s ease;
    border: none;
    line-height: 1.4;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 34px rgba(0,212,255,0.45);
    color: #fff;
}
.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 0 16px rgba(0,212,255,0.25);
    filter: brightness(0.92);
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 12px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.18);
    color: var(--text-strong);
    font-size: 0.9375rem;
    font-weight: 500;
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
    line-height: 1.4;
}
.btn-ghost:hover {
    border-color: rgba(255,255,255,0.4);
    color: #fff;
    background: rgba(255,255,255,0.1);
    transform: translateY(-2px);
}
.btn-ghost:active {
    background: rgba(255,255,255,0.08);
    transform: translateY(0);
}
.hero-stats {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}
.hero-stats div {
    position: relative;
    padding-left: 16px;
}
.hero-stats div::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 28px;
    border-radius: 4px;
    background: var(--grad-primary);
}
.hero-stats strong {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-strong);
    font-family: var(--font-num);
    letter-spacing: 0.01em;
}
.hero-stats span {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* 区块通用 */
.section {
    padding: 96px 0;
    position: relative;
}
.section-head {
    max-width: 720px;
    margin-bottom: 52px;
}
.section-tag {
    display: inline-block;
    color: var(--primary-300);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 12px;
    text-transform: uppercase;
}
.section-head h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.3;
    margin-bottom: 14px;
    letter-spacing: 0.01em;
}
.section-head p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 0;
}

/* 活动卖点区 */
.features-section {
    background: linear-gradient(180deg, var(--bg-base) 0%, rgba(12,23,43,0.35) 50%, var(--bg-base) 100%);
}
.feature-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
    align-items: stretch;
}
.feature-card {
    position: relative;
    padding: 38px 32px;
    border-radius: var(--radius-lg);
    background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent 70%);
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}
.feature-lg {
    grid-row: span 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 48px 40px;
}
.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(56,200,255,0.12);
    border: 1px solid rgba(56,200,255,0.22);
    display: grid;
    place-items: center;
    color: var(--primary-300);
    margin-bottom: 22px;
    flex-shrink: 0;
}
.feature-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 10px;
}
.feature-card p {
    font-size: 0.9375rem;
    line-height: 1.75;
    color: var(--text-body);
    margin-bottom: 0;
}

/* 亮点图墙 */
.gallery-section {
    background: radial-gradient(ellipse at 80% 0%, rgba(42,110,255,0.12), transparent 50%);
}
.gallery-grid {
    columns: 3;
    column-gap: 24px;
}
.gallery-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    display: block;
    break-inside: avoid;
    margin-bottom: 24px;
    isolation: isolate;
    background: var(--bg-elev);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    transition: box-shadow 0.3s ease;
}
.gallery-card:hover {
    box-shadow: 0 12px 36px rgba(0,0,0,0.45);
}
.gallery-card img {
    width: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.gallery-card:hover img {
    transform: scale(1.05);
}
.g-card-1 img { height: 280px; }
.g-card-2 img { height: 180px; }
.g-card-3 img { height: 240px; }
.g-card-4 img { height: 190px; }
.g-card-5 img { height: 260px; }
.g-card-6 img { height: 170px; }
.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(6,11,20,0.5) 70%, rgba(6,11,20,0.88) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    transition: background 0.3s ease;
}
.gallery-card:hover .gallery-overlay {
    background: linear-gradient(180deg, transparent 0%, rgba(6,11,20,0.65) 65%, rgba(6,11,20,0.92) 100%);
}
.gallery-cat {
    font-size: 12px;
    color: var(--primary-300);
    background: rgba(6,11,20,0.55);
    padding: 3px 10px;
    border-radius: 999px;
    display: inline-block;
    width: fit-content;
    margin-bottom: 8px;
    letter-spacing: 0.03em;
    border: 1px solid rgba(56,200,255,0.2);
}
.gallery-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    line-height: 1.45;
    margin-bottom: 6px;
}
.gallery-link {
    font-size: 13px;
    color: var(--primary-300);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    opacity: 0.85;
    transition: opacity 0.2s, gap 0.2s;
}
.gallery-card:hover .gallery-link {
    opacity: 1;
    gap: 8px;
}

/* CTA面板 */
.cta-section {
    padding-top: 48px;
    padding-bottom: 96px;
}
.cta-panel {
    position: relative;
    border-radius: var(--radius-lg);
    padding: clamp(36px, 6vw, 56px);
    background: linear-gradient(145deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow: hidden;
}
.cta-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.85), transparent);
}
.cta-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 80% 20%, rgba(42,110,255,0.18), transparent 60%);
    pointer-events: none;
}
.cta-content {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
}
.cta-text h2 {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.35;
    margin-bottom: 12px;
    max-width: 720px;
}
.cta-text p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 640px;
}
.cta-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: 12px;
    background: var(--accent);
    color: #0A0F1A;
    font-size: 0.9375rem;
    font-weight: 700;
    box-shadow: 0 0 20px rgba(255,122,47,0.3);
    transition: all 0.3s ease;
    border: none;
    line-height: 1.4;
}
.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 32px rgba(255,122,47,0.45);
    color: #0A0F1A;
}
.btn-accent:active {
    transform: translateY(0);
    filter: brightness(0.92);
}

/* FAQ */
.faq-section {
    background: radial-gradient(ellipse at 20% 60%, rgba(0,212,255,0.08), transparent 50%);
}
.faq-list {
    max-width: 860px;
    margin: 0 auto;
}
.faq-item {
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--glass-border);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s ease, background 0.3s ease;
}
.faq-item.active {
    border-color: rgba(56,200,255,0.35);
    background: rgba(56,200,255,0.04);
}
.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    background: transparent;
    border: none;
    color: var(--text-strong);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1.5;
}
.faq-question:hover { color: #fff; }
.faq-num {
    font-family: var(--font-num);
    color: rgba(127,146,184,0.5);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}
.faq-title { flex: 1; }
.faq-icon {
    margin-left: auto;
    font-size: 1.4rem;
    color: var(--primary-300);
    transition: transform 0.3s ease;
    font-weight: 300;
    line-height: 1;
    flex-shrink: 0;
}
.faq-item.active .faq-icon {
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    padding: 0 20px;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-body);
    font-size: 0.9375rem;
    line-height: 1.7;
}
.faq-item.active .faq-answer {
    max-height: 480px;
    padding: 0 20px 20px;
}

/* 最新资讯 */
.news-section {
    background: linear-gradient(180deg, var(--bg-base) 0%, rgba(12,23,43,0.3) 100%);
    padding-bottom: 120px;
}
.news-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.news-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 16px 18px;
    border-radius: var(--radius-md);
    background: rgba(255,255,255,0.03);
    border: 1px solid transparent;
    transition: all 0.3s ease;
}
.news-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--glass-border);
    transform: translateX(4px);
}
.news-date {
    font-family: var(--font-num);
    font-size: 13px;
    color: var(--primary-300);
    background: rgba(56,200,255,0.1);
    padding: 4px 10px;
    border-radius: 8px;
    white-space: nowrap;
    font-weight: 600;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.news-main {
    flex: 1;
    min-width: 0;
}
.news-title {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-strong);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
    transition: color 0.2s;
}
.news-item:hover .news-title { color: var(--primary-300); }
.news-summary {
    display: block;
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
    line-height: 1.5;
}
.news-cat {
    font-size: 12px;
    color: var(--text-body);
    background: rgba(255,255,255,0.07);
    padding: 4px 12px;
    border-radius: 999px;
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.08);
}
.news-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 64px 20px;
    text-align: center;
}
.news-empty-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 2px solid var(--text-muted);
    display: grid;
    place-items: center;
    font-size: 22px;
    color: var(--text-muted);
    margin-bottom: 14px;
    opacity: 0.5;
}
.news-empty p {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

/* 页脚 */
.site-footer {
    background: linear-gradient(180deg, rgba(12,23,43,0.6), var(--bg-base));
    border-top: 1px solid transparent;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56,200,255,0.45), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding-top: 64px;
    padding-bottom: 48px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-strong);
}
.footer-brand p {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.7;
    max-width: 340px;
    margin-top: 14px;
}
.footer-links h4,
.footer-service h4 {
    color: var(--text-strong);
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
}
.footer-links a {
    display: block;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 4px 0;
    transition: color 0.2s, padding-left 0.2s;
}
.footer-links a:hover {
    color: var(--primary-300);
    padding-left: 4px;
}
.footer-service p {
    color: var(--text-muted);
    font-size: 0.875rem;
    line-height: 1.7;
    margin-bottom: 4px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 20px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8125rem;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

/* 焦点可见性 */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary-400);
    outline-offset: 2px;
    border-radius: 4px;
}

/* 响应式 */
@media (max-width: 1199px) {
    .gallery-grid { columns: 2; }
    .feature-grid { grid-template-columns: 1.2fr 0.8fr; gap: 20px; }
}

@media (max-width: 1024px) {
    .main-nav { order: 3; width: 100%; justify-content: flex-start; }
    .header-inner { flex-wrap: wrap; height: auto; padding: 12px 0; }
    .site-logo { margin-right: auto; }
    .btn-nav-cta { display: none; }
    .mobile-menu-btn { display: inline-flex; }
    .site-header { height: auto; }
    body { padding-top: 64px; }
}
@media (max-width: 1024px) and (min-width: 768px) {
    .header-inner { flex-wrap: nowrap; }
}
@media (max-width: 1024px) {
    .mobile-nav { top: 100%; }
}

@media (max-width: 767px) {
    body { padding-top: 60px; }
    .header-inner {
        height: 60px;
        padding: 0;
        flex-wrap: nowrap;
    }
    .site-header { height: 60px; }
    .logo-text { font-size: 1rem; }
    .logo-mark { width: 28px; height: 28px; font-size: 12px; }
    .mobile-menu-btn { width: 34px; height: 34px; }
    .btn-nav-cta.mobile-cta {
        display: inline-flex;
        height: 32px;
        padding: 0 12px;
        font-size: 0.75rem;
        border-radius: 8px;
    }
    .section { padding: 64px 0; }
    .countdown-inner { justify-content: center; gap: 10px; }
    .countdown-tag { font-size: 11px; }
    .count-unit { padding: 3px 8px; }
    .count-unit span { font-size: 1.1rem; }
    .count-unit small { font-size: 11px; }
    .hero { min-height: 560px; }
    .hero-content { padding-top: 40px; padding-bottom: 40px; }
    .hero-content h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
    .hero-sub { font-size: 1rem; }
    .hero-stats { gap: 24px; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-lg { grid-row: auto; padding: 32px 24px; }
    .feature-card { padding: 28px 24px; border-radius: var(--radius-md); }
    .gallery-grid { columns: 1; }
    .gallery-card img { height: 220px !important; }
    .cta-panel { padding: 32px 24px; }
    .cta-content { flex-direction: column; align-items: flex-start; }
    .cta-buttons { width: 100%; }
    .cta-buttons .btn-primary,
    .cta-buttons .btn-accent,
    .cta-buttons .btn-ghost { width: 100%; justify-content: center; }
    .faq-question { padding: 16px; gap: 12px; }
    .faq-title { font-size: 0.9375rem; }
    .news-item { flex-direction: column; align-items: flex-start; gap: 8px; }
    .news-main { width: 100%; }
    .news-summary { white-space: normal; }
    .news-cat { display: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-top: 48px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
    .header-inner { gap: 8px; }
    .logo-text { font-size: 0.9rem; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .hero-cta { flex-direction: column; width: 100%; }
    .hero-cta .btn-primary,
    .hero-cta .btn-ghost { width: 100%; justify-content: center; }
    .section-head h2 { font-size: 1.5rem; }
}

/* 平滑过渡 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* roulang page: category1 */
:root {
    --bg-base: #060B14;
    --bg-elev: #0C172B;
    --primary-300: #6EE7FF;
    --primary-400: #38C8FF;
    --primary-500: #2A6EFF;
    --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
    --accent: #FF7A2F;
    --success: #00E88F;
    --text-strong: #EDF4FF;
    --text-body: #B8C7E0;
    --text-muted: #7F92B8;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.12);
    --glass-highlight: rgba(255,255,255,0.8);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-pill: 999px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-base);
    background-image:
      radial-gradient(ellipse 60% 40% at 80% 0%, rgba(42, 110, 255, 0.14), transparent 60%),
      radial-gradient(ellipse 40% 30% at 10% 30%, rgba(0, 212, 255, 0.08), transparent 60%);
    color: var(--text-body);
    line-height: 1.75;
    font-size: 0.9375rem;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
  }

  a {
    color: var(--primary-300);
    text-decoration: none;
    transition: color .2s ease;
  }

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

  button,
  input {
    font-family: inherit;
  }

  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 48px);
    padding-right: clamp(20px, 4vw, 48px);
  }

  .section {
    padding: clamp(48px, 7vw, 96px) 0;
    position: relative;
  }

  .section-head {
    margin-bottom: 48px;
    max-width: 720px;
  }

  .section-head h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--text-strong);
    letter-spacing: -0.01em;
    line-height: 1.3;
    margin-bottom: 12px;
  }

  .section-head p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.7;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--primary-300);
    text-transform: uppercase;
    margin-bottom: 14px;
  }

  .section-eyebrow::before {
    content: '';
    width: 4px;
    height: 14px;
    background: var(--accent);
    border-radius: 2px;
  }

  /* ---------- Header ---------- */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: 64px;
    transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
    border-bottom: 1px solid transparent;
  }

  .site-header.scrolled {
    background: rgba(6, 11, 20, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
  }

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

  .logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--grad-primary);
    color: #fff;
    font-weight: 800;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.35);
    letter-spacing: -0.02em;
  }

  .logo-name {
    font-weight: 700;
    font-size: 1.0625rem;
    color: var(--text-strong);
    white-space: nowrap;
    letter-spacing: 0.01em;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    padding: 4px 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow-x: auto;
    scrollbar-width: none;
  }

  .main-nav::-webkit-scrollbar {
    display: none;
  }

  .nav-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 16px;
    border-radius: var(--radius-pill);
    font-size: 0.84375rem;
    font-weight: 500;
    color: var(--text-body);
    white-space: nowrap;
    border: 1px solid transparent;
    transition: all .22s ease;
  }

  .nav-tab:hover {
    color: var(--text-strong);
    background: rgba(255, 255, 255, 0.06);
  }

  .nav-tab.active {
    color: #fff;
    background: rgba(110, 231, 255, 0.08);
    border-color: rgba(56, 200, 255, 0.45);
    box-shadow: 0 0 14px rgba(56, 200, 255, 0.18), inset 0 0 0 1px rgba(110, 231, 255, 0.08);
  }

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

  .menu-toggle {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
  }

  .menu-toggle span {
    display: block;
    width: 16px;
    height: 2px;
    background: var(--text-strong);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease;
  }

  .menu-toggle.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

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

  .menu-toggle.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .mobile-nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    z-index: 99;
    background: rgba(6, 11, 20, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 12px 20px 20px;
    flex-direction: column;
    gap: 6px;
  }

  .mobile-nav.show {
    display: flex;
  }

  .mobile-link {
    display: block;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-body);
    border: 1px solid transparent;
  }

  .mobile-link.active {
    color: #fff;
    background: rgba(56, 200, 255, 0.08);
    border-color: rgba(56, 200, 255, 0.3);
  }

  /* ---------- Buttons ---------- */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1;
    padding: 14px 26px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
  }

  .btn-primary {
    background: var(--grad-primary);
    color: #fff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 34px rgba(0, 212, 255, 0.45);
  }

  .btn-primary:active {
    filter: brightness(0.85);
    transform: none;
  }

  .btn-ghost {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text-strong);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

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

  .btn-ghost:active {
    background: rgba(255, 255, 255, 0.08);
  }

  .btn-sm {
    padding: 9px 16px;
    font-size: 0.8125rem;
    border-radius: 10px;
  }

  /* ---------- Hero ---------- */
  .page-hero {
    position: relative;
    min-height: 72vh;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 120px 0 80px;
    isolation: isolate;
    overflow: hidden;
  }

  .hero-overlay {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
      linear-gradient(100deg, rgba(6, 11, 20, 0.92) 0%, rgba(6, 11, 20, 0.65) 45%, rgba(6, 11, 20, 0.35) 100%),
      linear-gradient(0deg, var(--bg-base) 0%, transparent 60%);
  }

  .hero-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(125deg, rgba(255,255,255,0.02) 0 2px, transparent 2px 18px);
    pointer-events: none;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 28px;
  }

  .breadcrumb a {
    color: var(--text-muted);
    transition: color .2s ease;
  }

  .breadcrumb a:hover {
    color: var(--primary-300);
  }

  .bc-sep {
    color: rgba(127, 146, 184, 0.6);
  }

  .hero-title-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
  }

  .hero-accent {
    width: 4px;
    height: 24px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(255, 122, 47, 0.4);
  }

  .page-hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    color: var(--text-strong);
    letter-spacing: 0.01em;
    line-height: 1.1;
    text-shadow: 0 0 40px rgba(56, 200, 255, 0.2);
  }

  .hero-sub {
    max-width: 620px;
    font-size: 1.0625rem;
    color: var(--text-body);
    line-height: 1.8;
    margin-bottom: 34px;
  }

  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  /* ---------- Stagger Cards ---------- */
  .stagger-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

  .match-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  }

  .match-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 140px;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
    z-index: 2;
    pointer-events: none;
  }

  .match-card:nth-child(even) {
    transform: translateY(56px);
  }

  .match-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.45);
    border-color: rgba(56, 200, 255, 0.3);
  }

  .match-card:nth-child(even):hover {
    transform: translateY(50px);
  }

  .match-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
  }

  .match-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }

  .match-card:hover .match-media img {
    transform: scale(1.04);
  }

  .match-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(6, 11, 20, 0.7) 100%);
  }

  .match-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    background: rgba(6, 11, 20, 0.55);
    border: 1px solid rgba(110, 231, 255, 0.3);
    color: var(--primary-300);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }

  .match-body {
    padding: 22px 24px 26px;
  }

  .match-body h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 10px;
  }

  .match-body p {
    font-size: 0.875rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 18px;
  }

  .match-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-300);
  }

  .match-link i {
    transition: transform .22s ease;
  }

  .match-link:hover {
    color: var(--primary-400);
  }

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

  /* ---------- Feature highlights ---------- */
  .feature-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr 1fr;
    gap: 24px;
    align-items: start;
  }

  .feature-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  }

  .feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
    pointer-events: none;
  }

  .feature-card:nth-child(2) {
    transform: translateY(32px);
  }

  .feature-card:nth-child(3) {
    transform: translateY(-12px);
  }

  .feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(56, 200, 255, 0.28);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  }

  .feature-card:nth-child(2):hover {
    transform: translateY(28px);
  }

  .feature-card:nth-child(3):hover {
    transform: translateY(-16px);
  }

  .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(56, 200, 255, 0.1);
    border: 1px solid rgba(56, 200, 255, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-300);
    font-size: 1.25rem;
    margin-bottom: 18px;
  }

  .feature-card h3 {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 8px;
  }

  .feature-card p {
    font-size: 0.875rem;
    color: var(--text-body);
    line-height: 1.7;
  }

  /* ---------- Scenario split ---------- */
  .scenario-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(24px, 5vw, 64px);
    align-items: center;
  }

  .scenario-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-card);
  }

  .scenario-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3;
  }

  .scenario-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(200deg, transparent 50%, rgba(6, 11, 20, 0.55) 100%);
  }

  .scenario-list {
    display: flex;
    flex-direction: column;
    gap: 22px;
  }

  .scenario-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
  }

  .scenario-num {
    font-family: "Inter", "DIN Alternate", "Roboto", sans-serif;
    font-feature-settings: "tnum";
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
    background: rgba(255, 122, 47, 0.1);
    border: 1px solid rgba(255, 122, 47, 0.2);
    border-radius: 10px;
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .scenario-item h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 4px;
  }

  .scenario-item p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.7;
  }

  /* ---------- Steps ---------- */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .step-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 28px 20px 24px;
    text-align: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: transform .3s ease, border-color .3s ease;
  }

  .step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 90px;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
    pointer-events: none;
  }

  .step-card:hover {
    transform: translateY(-4px);
    border-color: rgba(56, 200, 255, 0.25);
  }

  .step-index {
    font-family: "Inter", "DIN Alternate", "Roboto", sans-serif;
    font-feature-settings: "tnum";
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--primary-300);
    opacity: 0.7;
    margin-bottom: 10px;
  }

  .step-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 6px;
  }

  .step-card p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.6;
  }

  /* ---------- FAQ ---------- */
  .faq-wrap {
    max-width: 860px;
    margin: 0 auto;
  }

  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .faq-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color .3s ease, box-shadow .3s ease;
  }

  .faq-item::before {
    content: '';
    display: block;
    width: 100px;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
  }

  .faq-item:hover {
    border-color: rgba(56, 200, 255, 0.2);
  }

  .faq-question {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    cursor: pointer;
    user-select: none;
  }

  .faq-index {
    font-family: "Inter", "DIN Alternate", "Roboto", sans-serif;
    font-feature-settings: "tnum";
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    opacity: 0.6;
    width: 28px;
    flex-shrink: 0;
  }

  .faq-question h3 {
    flex: 1;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-strong);
    margin: 0;
  }

  .faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(56, 200, 255, 0.1);
    border: 1px solid rgba(56, 200, 255, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-300);
    font-size: 0.875rem;
    flex-shrink: 0;
    transition: transform .3s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(56, 200, 255, 0.22);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }

  .faq-answer-inner {
    padding: 0 22px 20px 64px;
    font-size: 0.875rem;
    color: var(--text-body);
    line-height: 1.7;
  }

  /* ---------- CTA ---------- */
  .cta-panel {
    position: relative;
    background: linear-gradient(135deg, rgba(42, 110, 255, 0.16), rgba(0, 212, 255, 0.06));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: clamp(32px, 5vw, 56px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    flex-wrap: wrap;
    overflow: hidden;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-card);
  }

  .cta-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
    pointer-events: none;
  }

  .cta-panel::after {
    content: '';
    position: absolute;
    top: -60%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(56, 200, 255, 0.2), transparent 70%);
    pointer-events: none;
  }

  .cta-left {
    max-width: 560px;
    position: relative;
    z-index: 1;
  }

  .cta-left h2 {
    font-size: clamp(1.5rem, 3vw, 2.125rem);
    font-weight: 700;
    color: var(--text-strong);
    line-height: 1.3;
    margin-bottom: 12px;
  }

  .cta-left p {
    font-size: 0.9375rem;
    color: var(--text-body);
    line-height: 1.7;
  }

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

  /* ---------- Footer ---------- */
  .site-footer {
    background: var(--bg-elev);
    border-top: 1px solid rgba(56, 200, 255, 0.14);
    position: relative;
    padding-top: 56px;
  }

  .site-footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(56, 200, 255, 0.5), transparent);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: clamp(24px, 4vw, 56px);
    padding-bottom: 40px;
  }

  .footer-brand .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
  }

  .footer-logo {
    font-weight: 700;
    color: var(--text-strong);
    font-size: 1.0625rem;
  }

  .footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 360px;
    line-height: 1.7;
  }

  .footer-links h4,
  .footer-service h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 14px;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .footer-links a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    color: var(--text-body);
  }

  .footer-links a:hover {
    color: var(--primary-300);
  }

  .footer-service p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 6px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 18px 0;
  }

  .footer-bottom .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
  }

  /* ---------- Responsive ---------- */
  @media (max-width: 1199px) {
    .feature-grid {
      grid-template-columns: 1fr 1fr;
    }
    .feature-card:nth-child(3) {
      transform: none;
      grid-column: span 2;
    }
    .feature-card:nth-child(3):hover {
      transform: translateY(-4px);
    }
    .steps-grid {
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
  }

  @media (max-width: 991px) {
    .stagger-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .match-card:nth-child(even),
    .match-card:nth-child(even):hover {
      transform: none;
    }
    .scenario-wrap {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (max-width: 767px) {
    .main-nav {
      display: none;
    }
    .menu-toggle {
      display: inline-flex;
    }
    .nav-cta {
      display: none;
    }
    .section {
      padding: 64px 0;
    }
    .feature-grid {
      grid-template-columns: 1fr;
    }
    .feature-card:nth-child(3) {
      grid-column: auto;
    }
    .feature-card:nth-child(2),
    .feature-card:nth-child(2):hover {
      transform: none;
    }
    .feature-card:nth-child(3),
    .feature-card:nth-child(3):hover {
      transform: none;
    }
    .steps-grid {
      grid-template-columns: 1fr;
    }
    .hero-ctas {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-ctas .btn {
      width: 100%;
    }
    .cta-panel {
      flex-direction: column;
      align-items: flex-start;
    }
    .cta-buttons {
      width: 100%;
      flex-direction: column;
    }
    .cta-buttons .btn {
      width: 100%;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .footer-bottom .container {
      flex-direction: column;
      text-align: center;
    }
    .page-hero {
      min-height: auto;
      padding: 100px 0 60px;
    }
    .faq-answer-inner {
      padding-left: 22px;
    }
  }

/* roulang page: article */
:root {
    --bg-base: #060B14;
    --bg-elev: #0C172B;
    --bg-soft: #0E1B30;
    --primary-300: #6EE7FF;
    --primary-400: #38C8FF;
    --primary-500: #2A6EFF;
    --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
    --accent: #FF7A2F;
    --success: #00E88F;
    --text-strong: #EDF4FF;
    --text-body: #B8C7E0;
    --text-muted: #7F92B8;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-bg-strong: rgba(255,255,255,0.08);
    --glass-border: rgba(255,255,255,0.12);
    --glass-highlight: rgba(255,255,255,0.8);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--primary-400); text-decoration: none; transition: all 0.2s ease; }
a:hover { color: var(--primary-300); }
img { max-width: 100%; display: block; }
button { font-family: inherit; border: none; cursor: pointer; background: none; color: inherit; }
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 64px;
    z-index: 100;
    background: rgba(6,11,20,0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
    background: rgba(6,11,20,0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--glass-border);
    box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
.header-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    color: var(--text-strong);
}
.logo:hover { color: var(--text-strong); }
.logo-mark {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--grad-primary);
    border-radius: 10px;
    color: #fff;
    font-family: var(--font-num);
    font-weight: 800;
    font-size: 0.875rem;
    box-shadow: 0 0 16px rgba(0,212,255,0.3);
    letter-spacing: 0.02em;
}
.logo-text {
    font-size: 1.0625rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    padding: 4px 6px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow-x: auto;
    scrollbar-width: none;
}
.main-nav::-webkit-scrollbar { display: none; }
.nav-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 18px;
    border-radius: 999px;
    color: var(--text-body);
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}
.nav-tab:hover {
    color: var(--text-strong);
    background: var(--glass-bg-strong);
}
.nav-tab.active {
    color: #fff;
    background: var(--glass-bg-strong);
    border-color: rgba(56,200,255,0.5);
    box-shadow: 0 0 12px rgba(56,200,255,0.25);
}
.header-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border-radius: 10px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.8125rem;
    font-weight: 600;
    box-shadow: 0 0 18px rgba(0,212,255,0.25);
    transition: all 0.25s ease;
    flex-shrink: 0;
    white-space: nowrap;
}
.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 28px rgba(0,212,255,0.45);
    color: #fff;
}
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border-radius: 8px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
}
.mobile-toggle span {
    width: 20px;
    height: 2px;
    background: var(--text-strong);
    border-radius: 2px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}
.mobile-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.article-hero {
    position: relative;
    padding: 120px 0 52px;
    background:
        linear-gradient(180deg, rgba(6,11,20,0.92) 0%, rgba(6,11,20,0.82) 100%),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    overflow: hidden;
}
.article-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse 640px 320px at 50% 0%, rgba(56,200,255,0.14), transparent 70%);
    pointer-events: none;
}
.hero-main {
    position: relative;
    z-index: 1;
}
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}
.breadcrumb a { color: var(--primary-300); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: var(--text-muted); opacity: 0.6; }
.breadcrumb .current {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-body);
}
.article-title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-strong);
    margin-bottom: 22px;
    letter-spacing: 0.01em;
    max-width: 960px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    font-size: 0.8125rem;
    color: var(--text-muted);
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.meta-item i { color: var(--primary-400); }
.meta-tag {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    background: rgba(56,200,255,0.12);
    color: var(--primary-300);
    font-size: 0.75rem;
    font-weight: 500;
}
.article-main {
    padding: 52px 0 80px;
    background: var(--bg-base);
    position: relative;
}
.article-main::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 220px;
    background: radial-gradient(ellipse 500px 200px at 20% 0%, rgba(42,110,255,0.06), transparent 70%);
    pointer-events: none;
}
.article-container {
    max-width: 860px;
    margin: 0 auto;
    position: relative;
}
.article-body {
    color: var(--text-body);
    font-size: 0.9375rem;
    line-height: 1.9;
}
.article-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-strong);
    margin: 40px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    border-radius: 2px;
    line-height: 1.4;
}
.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-strong);
    margin: 32px 0 12px;
    line-height: 1.45;
}
.article-body p { margin-bottom: 18px; }
.article-body img {
    max-width: 100%;
    height: auto;
    margin: 26px auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--glass-border);
}
.article-body ul,
.article-body ol {
    margin: 16px 0 20px 22px;
    display: grid;
    gap: 8px;
}
.article-body li { line-height: 1.7; }
.article-body ul { list-style: none; margin-left: 22px; }
.article-body ul li { position: relative; padding-left: 6px; }
.article-body ul li::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 0.65em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary-400);
    box-shadow: 0 0 8px rgba(56,200,255,0.6);
}
.article-body ol { list-style: decimal; }
.article-body ol li::marker { color: var(--primary-400); font-weight: 600; }
.article-body blockquote {
    margin: 26px 0;
    padding: 18px 22px;
    background: var(--glass-bg);
    border-left: 3px solid var(--primary-400);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-body);
    font-style: italic;
    position: relative;
}
.article-body blockquote::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 80px; height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
}
.article-body a {
    color: var(--primary-300);
    border-bottom: 1px dashed rgba(110,231,255,0.4);
}
.article-body a:hover { color: #fff; border-bottom-color: #fff; }
.article-body hr {
    border: none;
    height: 1px;
    background: var(--glass-border);
    margin: 32px 0;
}
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 0.875rem;
}
.article-body th {
    background: var(--bg-elev);
    color: var(--text-strong);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
}
.article-body td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--glass-border);
}
.article-body figure {
    margin: 28px 0;
    text-align: center;
}
.article-body figure img { margin: 0 auto; }
.article-body figcaption {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 10px;
}
.not-found {
    text-align: center;
    padding: 60px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}
.not-found::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 80px; height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
}
.not-found-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.5rem;
}
.not-found h2 {
    color: var(--text-strong);
    font-size: 1.5rem;
    margin-bottom: 12px;
}
.not-found p { margin-bottom: 28px; }
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 12px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 0.9375rem;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0,212,255,0.25);
    transition: all 0.25s ease;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 34px rgba(0,212,255,0.45);
    color: #fff;
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 18px rgba(0,212,255,0.3); }
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 12px;
    background: var(--glass-bg);
    border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-strong);
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.25s ease;
    cursor: pointer;
}
.btn-ghost:hover {
    border-color: rgba(255,255,255,0.4);
    color: #fff;
    background: var(--glass-bg-strong);
}
.related-section {
    padding: 76px 0;
    background: var(--bg-elev);
    border-top: 1px solid rgba(255,255,255,0.06);
    position: relative;
}
.related-section::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-400), transparent);
}
.section-title {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--text-strong);
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 0.01em;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    display: flex;
    align-items: stretch;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 10px;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}
.related-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 70px; height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
    z-index: 1;
}
.related-card:hover {
    transform: translateY(-4px);
    background: var(--glass-bg-strong);
    border-color: rgba(255,255,255,0.22);
    box-shadow: var(--shadow-card);
}
.related-thumb {
    width: 140px;
    height: 110px;
    border-radius: 10px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.related-card:hover .related-thumb img { transform: scale(1.05); }
.related-body {
    padding: 8px 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}
.related-body h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-strong);
    line-height: 1.4;
}
.related-body p {
    font-size: 0.8125rem;
    color: var(--text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-body a {
    font-size: 0.8125rem;
    color: var(--primary-300);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease, color 0.2s ease;
}
.related-body a:hover { gap: 8px; color: #fff; }
.back-list {
    text-align: center;
    margin-top: 42px;
}
.site-footer {
    background: #050A12;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 56px 0 0;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-400), transparent);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 44px;
    padding-bottom: 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.footer-logo .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
    border-radius: 9px;
}
.footer-logo span:last-child {
    color: var(--text-strong);
    font-weight: 700;
    font-size: 1rem;
}
.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 360px;
}
.footer-links h4,
.footer-service h4 {
    color: var(--text-strong);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 14px;
}
.footer-links a {
    display: block;
    padding: 6px 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}
.footer-links a:hover { color: var(--primary-300); }
.footer-service p {
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 6px 0;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 18px 0;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.8125rem;
    flex-wrap: wrap;
}
@media (max-width: 1199px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 767px) {
    .site-header.scrolled { background: rgba(6,11,20,0.95); }
    .mobile-toggle { display: flex; }
    .main-nav {
        position: fixed;
        top: 64px;
        left: 12px;
        right: 12px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        background: rgba(6,11,20,0.97);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-radius: 14px;
        padding: 12px;
        gap: 4px;
        box-shadow: 0 16px 40px rgba(0,0,0,0.5);
        border: 1px solid var(--glass-border);
        z-index: 99;
        overflow-x: visible;
    }
    .main-nav.open { display: flex; }
    .nav-tab { justify-content: flex-start; width: 100%; }
    .article-hero { padding: 104px 0 36px; }
    .article-meta { gap: 12px; }
    .related-grid { grid-template-columns: 1fr; }
    .related-card { flex-direction: column; }
    .related-thumb { width: 100%; height: 180px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom .container { flex-direction: column; align-items: center; text-align: center; }
}
@media (max-width: 520px) {
    .logo-text { font-size: 0.9375rem; }
    .header-cta { font-size: 0.75rem; padding: 6px 12px; }
    .header-inner { gap: 10px; }
    .article-title { font-size: 1.5rem; }
    .breadcrumb .current { max-width: 180px; }
    .related-body h3 { font-size: 0.9375rem; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --bg-base: #060B14;
            --bg-elev: #0C172B;
            --primary-300: #6EE7FF;
            --primary-400: #38C8FF;
            --primary-500: #2A6EFF;
            --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
            --accent: #FF7A2F;
            --success: #00E88F;
            --text-strong: #EDF4FF;
            --text-body: #B8C7E0;
            --text-muted: #7F92B8;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.8);
            --radius-lg: 20px;
            --radius-md: 14px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
        }

        /* ===== 基础 Reset ===== */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 0.9375rem;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--primary-300);
            text-decoration: none;
            transition: color .25s, opacity .25s, transform .25s, box-shadow .25s, border-color .25s, background .25s;
        }
        a:hover {
            color: var(--primary-300);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: clamp(20px, 4vw, 48px);
            padding-right: clamp(20px, 4vw, 48px);
        }

        /* ===== 头部导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            z-index: 1000;
            background: transparent;
            transition: background .3s, border-color .3s, box-shadow .3s;
        }
        .site-header.scrolled {
            background: rgba(6, 11, 20, 0.8);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 0.9375rem;
            font-weight: 800;
            font-family: "Inter", "DIN Alternate", sans-serif;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.35);
        }
        .logo-text {
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 999px;
            padding: 4px;
            margin: 0 auto;
        }
        .nav-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 6px 18px;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-body);
            letter-spacing: 0.03em;
            white-space: nowrap;
            border: 1px solid transparent;
            transition: all .25s;
        }
        .nav-tab:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-tab.active {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(56, 200, 255, 0.5);
            box-shadow: 0 0 14px rgba(56, 200, 255, 0.25);
        }
        .header-cta {
            flex-shrink: 0;
        }
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            align-items: center;
            flex-shrink: 0;
        }
        .menu-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-strong);
            border-radius: 2px;
            transition: all .3s;
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            background: rgba(6, 11, 20, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 20px 16px;
            z-index: 999;
            flex-wrap: nowrap;
            overflow-x: auto;
            gap: 8px;
        }
        .mobile-nav .nav-tab {
            flex-shrink: 0;
        }
        .mobile-nav.show {
            display: flex;
        }

        /* ===== 按钮系统 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 12px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 0.9375rem;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
            transition: all .25s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 34px rgba(0, 212, 255, 0.45);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary-300);
            outline-offset: 3px;
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 12px;
            background: var(--glass-bg);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-strong);
            font-size: 0.9375rem;
            font-weight: 500;
            backdrop-filter: blur(6px);
            transition: all .25s;
        }
        .btn-ghost:hover {
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-ghost:active {
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-ghost:focus-visible {
            outline: 2px solid var(--primary-300);
            outline-offset: 3px;
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.8125rem;
            border-radius: 10px;
        }

        /* ===== 分类页 Hero ===== */
        .category-hero {
            position: relative;
            padding: 140px 0 72px;
            background-image: linear-gradient(rgba(6, 11, 20, 0.88), rgba(6, 11, 20, 0.94)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.2) 0%, transparent 70%);
            pointer-events: none;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -120px;
            left: 10%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(42, 110, 255, 0.22) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary-300);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }
        .breadcrumb .current {
            color: var(--text-body);
        }
        .hero-title-row {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .hero-bar {
            display: block;
            width: 4px;
            height: 24px;
            border-radius: 4px;
            background: var(--accent);
            flex-shrink: 0;
        }
        .category-hero h1 {
            font-size: clamp(2.25rem, 4vw, 3.25rem);
            font-weight: 800;
            color: var(--text-strong);
            letter-spacing: 0.01em;
            line-height: 1.2;
        }
        .hero-sub {
            max-width: 720px;
            font-size: 1rem;
            color: var(--text-body);
            line-height: 1.8;
            position: relative;
            z-index: 1;
        }

        /* ===== 通用板块头部 ===== */
        .section-head {
            margin-bottom: 44px;
        }
        .section-head .section-bar {
            display: block;
            width: 4px;
            height: 24px;
            border-radius: 4px;
            background: var(--accent);
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.01em;
            line-height: 1.3;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            max-width: 560px;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(56, 200, 255, 0.12);
            color: var(--primary-300);
            font-size: 0.8125rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-bottom: 14px;
        }

        /* ===== 通用区块间距 ===== */
        .section-pad {
            padding: 72px 0;
        }
        .section-pad-sm {
            padding: 48px 0;
        }

        /* ===== 左右分栏 ===== */
        .split-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }
        .split-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .split-media::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
            z-index: 1;
            pointer-events: none;
        }
        .split-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 340px;
        }
        .split-content h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.35;
            margin-bottom: 16px;
        }
        .split-content p {
            font-size: 0.9375rem;
            line-height: 1.8;
            color: var(--text-body);
            margin-bottom: 20px;
        }
        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 0.9375rem;
            color: var(--text-body);
        }
        .check-list li::before {
            content: '';
            flex-shrink: 0;
            width: 18px;
            height: 18px;
            margin-top: 4px;
            border-radius: 50%;
            background: var(--grad-primary);
            box-shadow: 0 0 8px rgba(0, 212, 255, 0.4);
        }
        .check-list li span {
            flex: 1;
        }

        /* ===== 图文交替特征行 ===== */
        .feature-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 48px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .feature-row:last-child {
            border-bottom: none;
        }
        .feature-row.reverse .feature-media {
            order: 2;
        }
        .feature-row.reverse .feature-content {
            order: 1;
        }
        .feature-media {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .feature-media::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(160deg, rgba(0, 212, 255, 0.1) 0%, transparent 55%);
            z-index: 1;
            pointer-events: none;
        }
        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }
        .feature-content .feature-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 14px;
            border-radius: 999px;
            background: rgba(56, 200, 255, 0.1);
            color: var(--primary-300);
            font-size: 0.8125rem;
            font-weight: 500;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .feature-content h3 {
            font-size: 1.375rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .feature-content p {
            font-size: 0.9375rem;
            line-height: 1.8;
            color: var(--text-body);
        }

        /* ===== 场景卡片 ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 24px;
        }
        .scenario-card {
            position: relative;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            box-shadow: var(--shadow-card);
            transition: transform .3s, border-color .3s, box-shadow .3s;
            overflow: hidden;
        }
        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 90px;
            height: 1px;
            background: linear-gradient(90deg, var(--glass-highlight), transparent);
            border-radius: 999px;
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            border-color: rgba(56, 200, 255, 0.35);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45), 0 0 20px rgba(56, 200, 255, 0.08);
        }
        .scenario-num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--primary-300);
            background: rgba(56, 200, 255, 0.1);
            display: inline-block;
            padding: 2px 12px;
            border-radius: 999px;
            margin-bottom: 18px;
            letter-spacing: 0.05em;
        }
        .scenario-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 10px;
        }
        .scenario-card p {
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        /* ===== 步骤流程 ===== */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            position: relative;
            text-align: center;
            padding: 32px 20px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            transition: all .3s;
        }
        .step-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 70px;
            height: 1px;
            background: linear-gradient(90deg, var(--glass-highlight), transparent);
            border-radius: 999px;
        }
        .step-item:hover {
            border-color: rgba(56, 200, 255, 0.3);
            background: rgba(255, 255, 255, 0.05);
        }
        .step-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 18px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 1.25rem;
            font-weight: 700;
            font-family: "Inter", "DIN Alternate", sans-serif;
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.3);
            margin-bottom: 18px;
        }
        .step-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            position: relative;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: border-color .3s, box-shadow .3s;
        }
        .faq-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 80px;
            height: 1px;
            background: linear-gradient(90deg, var(--glass-highlight), transparent);
            border-radius: 999px;
        }
        .faq-item.open {
            border-color: rgba(56, 200, 255, 0.35);
            box-shadow: 0 0 20px rgba(56, 200, 255, 0.06);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            user-select: none;
        }
        .faq-num {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 0.8125rem;
            font-weight: 600;
            color: rgba(127, 146, 184, 0.5);
            min-width: 28px;
        }
        .faq-question h3 {
            flex: 1;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-strong);
            line-height: 1.5;
        }
        .faq-toggle {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1;
            transition: all .3s;
            flex-shrink: 0;
        }
        .faq-toggle::before {
            content: '+';
            transition: transform .3s;
        }
        .faq-item.open .faq-toggle {
            background: rgba(56, 200, 255, 0.15);
            border-color: rgba(56, 200, 255, 0.4);
            color: var(--primary-300);
        }
        .faq-item.open .faq-toggle::before {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px 68px;
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA 面板 ===== */
        .cta-section {
            padding: 40px 0 72px;
        }
        .cta-panel {
            position: relative;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(12, 23, 43, 0.8), rgba(6, 11, 20, 0.9));
            border: 1px solid var(--glass-border);
            padding: 56px 48px;
            overflow: hidden;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(56, 200, 255, 0.6), transparent);
        }
        .cta-panel::after {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-left {
            flex: 1;
            min-width: 280px;
            position: relative;
            z-index: 1;
        }
        .cta-left h2 {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 10px;
            line-height: 1.3;
        }
        .cta-left p {
            font-size: 0.9375rem;
            color: var(--text-body);
            max-width: 480px;
            line-height: 1.7;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
            flex-shrink: 0;
        }

        /* ===== 分页条 ===== */
        .pagination-wrap {
            padding: 20px 0 72px;
        }
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            border-radius: 999px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-body);
            font-size: 0.875rem;
            font-weight: 500;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: all .3s;
        }
        .page-link:hover {
            border-color: rgba(56, 200, 255, 0.4);
            color: var(--primary-300);
            transform: translateY(-2px);
        }
        .page-link.active {
            background: rgba(56, 200, 255, 0.15);
            border-color: rgba(56, 200, 255, 0.55);
            color: var(--primary-300);
            box-shadow: 0 0 18px rgba(56, 200, 255, 0.25);
            font-weight: 600;
        }
        .page-link.active:hover {
            transform: none;
            color: var(--primary-300);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #040810;
            border-top: 1px solid transparent;
            border-image: linear-gradient(90deg, transparent, rgba(56, 200, 255, 0.4), transparent) 1;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-top: 56px;
            padding-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-logo .logo-mark {
            width: 32px;
            height: 32px;
            font-size: 0.8125rem;
        }
        .footer-logo span:last-child {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-strong);
        }
        .footer-brand p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-links h4,
        .footer-service h4 {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 18px;
            letter-spacing: 0.05em;
        }
        .footer-links a {
            display: block;
            color: var(--text-muted);
            font-size: 0.875rem;
            padding: 6px 0;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--primary-300);
            padding-left: 6px;
        }
        .footer-service p {
            color: var(--text-muted);
            font-size: 0.875rem;
            padding: 6px 0;
            margin: 0;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
        }
        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom span {
            font-size: 0.8125rem;
            color: rgba(127, 146, 184, 0.7);
        }

        /* ===== 图片兜底 ===== */
        .media-fallback {
            position: relative;
            background: linear-gradient(135deg, #0C172B 0%, #131E36 100%);
        }
        .media-fallback::after {
            content: '◆';
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: rgba(56, 200, 255, 0.3);
        }
        .media-fallback img {
            opacity: 0;
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-in-up {
            animation: fadeInUp .6s ease both;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1199px) {
            .split-layout {
                gap: 40px;
            }
            .feature-row {
                gap: 36px;
            }
            .scenario-grid {
                grid-template-columns: 1fr 1fr;
            }
            .scenario-card:last-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 991px) {
            .main-nav {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .mobile-nav {
                display: none;
            }
            .mobile-nav.show {
                display: flex;
            }
            .split-layout {
                grid-template-columns: 1fr;
            }
            .split-media img {
                min-height: 260px;
            }
            .feature-row {
                grid-template-columns: 1fr;
            }
            .feature-row.reverse .feature-media {
                order: 0;
            }
            .feature-row.reverse .feature-content {
                order: 0;
            }
            .steps-row {
                grid-template-columns: 1fr 1fr;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
                padding: 40px 32px;
            }
            .cta-actions {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .logo-text {
                font-size: 1rem;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.8125rem;
            }
            .category-hero {
                padding: 120px 0 48px;
            }
            .section-pad {
                padding: 48px 0;
            }
            .section-pad-sm {
                padding: 32px 0;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .scenario-card:last-child {
                grid-column: auto;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .step-item {
                display: flex;
                align-items: center;
                text-align: left;
                gap: 16px;
                padding: 20px;
            }
            .step-icon {
                width: 48px;
                height: 48px;
                font-size: 1rem;
                margin-bottom: 0;
                border-radius: 14px;
                flex-shrink: 0;
            }
            .step-item h3 {
                margin-bottom: 2px;
            }
            .faq-question {
                padding: 16px 18px;
            }
            .faq-answer-inner {
                padding: 0 18px 16px 52px;
            }
            .cta-panel {
                padding: 32px 24px;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-ghost {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-top: 40px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
            .feature-media img {
                min-height: 220px;
            }
            .split-media img {
                min-height: 220px;
            }
        }
        @media (max-width: 520px) {
            .hero-sub {
                font-size: 0.9375rem;
            }
            .header-cta {
                display: none;
            }
            .pagination {
                gap: 4px;
            }
            .page-link {
                min-width: 36px;
                height: 36px;
                font-size: 0.8125rem;
                padding: 0 10px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-base: #060B14;
            --bg-elev: #0C172B;
            --primary-300: #6EE7FF;
            --primary-400: #38C8FF;
            --primary-500: #2A6EFF;
            --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
            --accent: #FF7A2F;
            --success: #00E88F;
            --text-strong: #EDF4FF;
            --text-body: #B8C7E0;
            --text-muted: #7F92B8;
            --glass-bg: rgba(255, 255, 255, 0.05);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-highlight: rgba(255, 255, 255, 0.8);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-base);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary-400);
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease, box-shadow 0.25s ease;
        }

        a:hover {
            color: var(--primary-300);
        }

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: clamp(20px, 4vw, 48px);
            padding-right: clamp(20px, 4vw, 48px);
        }

        /* ====== 顶部导航 ====== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            height: 64px;
            display: flex;
            align-items: center;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
            background: rgba(6, 11, 20, 0.55);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .site-header.scrolled {
            background: rgba(6, 11, 20, 0.8);
            border-bottom-color: rgba(255, 255, 255, 0.08);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
        }

        .header-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-size: 1.125rem;
            font-weight: 700;
            color: var(--text-strong);
            letter-spacing: 0.02em;
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 800;
            box-shadow: 0 0 16px rgba(0, 212, 255, 0.35);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 999px;
            padding: 4px;
            overflow-x: auto;
            scrollbar-width: none;
            -webkit-overflow-scrolling: touch;
        }

        .main-nav::-webkit-scrollbar {
            display: none;
        }

        .nav-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 7px 18px;
            border-radius: 999px;
            font-size: 0.8125rem;
            font-weight: 500;
            letter-spacing: 0.03em;
            color: var(--text-muted);
            white-space: nowrap;
            border: 1px solid transparent;
            transition: all 0.3s ease;
        }

        .nav-tab:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-tab.active {
            color: #fff;
            background: rgba(56, 200, 255, 0.12);
            border-color: rgba(110, 231, 255, 0.4);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.12);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 20px;
            border-radius: 12px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 0.8125rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

        .header-cta:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(0, 212, 255, 0.42);
        }

        /* 移动端汉堡 */
        .menu-toggle {
            display: none;
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
            color: var(--text-strong);
            font-size: 1.05rem;
            cursor: pointer;
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .menu-toggle:hover {
            border-color: rgba(110, 231, 255, 0.4);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            z-index: 998;
            background: rgba(10, 18, 32, 0.96);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 16px 20px;
            flex-direction: column;
            gap: 8px;
        }

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

        .mobile-nav .nav-tab {
            justify-content: flex-start;
            padding: 12px 16px;
            font-size: 0.9375rem;
        }

        /* ====== Hero ====== */
        .page-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding-top: 120px;
            padding-bottom: 64px;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(10, 22, 42, 0.35) 0%, rgba(6, 11, 20, 0.92) 75%);
            z-index: 1;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(110deg,
                    rgba(6, 11, 20, 0.55) 0%, transparent 40%,
                    transparent 65%, rgba(6, 11, 20, 0.65) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: var(--primary-300);
        }

        .breadcrumb a:hover {
            color: #fff;
        }

        .breadcrumb .divider {
            color: rgba(255, 255, 255, 0.25);
        }

        .hero-title-wrap {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 14px;
        }

        .title-bar {
            width: 4px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(255, 122, 47, 0.4);
            flex-shrink: 0;
        }

        .hero-title-wrap h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            letter-spacing: 0.01em;
            color: var(--text-strong);
            line-height: 1.15;
        }

        .hero-desc {
            max-width: 620px;
            font-size: 1rem;
            line-height: 1.85;
            color: var(--text-body);
            margin-bottom: 28px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 12px;
            background: var(--grad-primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.24);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 34px rgba(0, 212, 255, 0.45);
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.16);
            color: var(--text-strong);
            font-size: 0.875rem;
            font-weight: 500;
            transition: all 0.3s ease;
            cursor: pointer;
        }

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

        .btn-ghost:active {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ====== 板块标题 ====== */
        .section-block {
            padding: 72px 0;
        }

        .section-head {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-bottom: 44px;
        }

        .section-head .title-bar {
            margin-bottom: 2px;
        }

        .section-head h2 {
            font-size: clamp(1.5rem, 3vw, 2.1rem);
            font-weight: 700;
            color: var(--text-strong);
            line-height: 1.3;
        }

        .section-head p {
            max-width: 640px;
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ====== 活动列表区 ====== */
        .activity-section {
            padding: 72px 0 40px;
            background: linear-gradient(180deg, rgba(6, 11, 20, 0) 0%, rgba(12, 23, 43, 0.5) 50%, rgba(6, 11, 20, 0) 100%);
        }

        .activity-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 28px;
            align-items: start;
        }

        .activity-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .activity-card {
            position: relative;
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 24px;
            background: var(--bg-elev);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .activity-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), transparent 60%);
            opacity: 0.35;
        }

        .activity-card::after {
            content: '';
            position: absolute;
            left: 0;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: transparent;
            border-radius: 2px;
            transition: background 0.3s ease;
        }

        .activity-card:hover {
            border-color: rgba(110, 231, 255, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
        }

        .activity-card:hover::after {
            background: var(--primary-400);
        }

        .activity-date {
            flex-shrink: 0;
            width: 56px;
            text-align: center;
            padding: 8px 6px;
            border-radius: 12px;
            background: rgba(56, 200, 255, 0.08);
            border: 1px solid rgba(110, 231, 255, 0.12);
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--primary-300);
            line-height: 1.4;
            transition: all 0.3s ease;
        }

        .activity-card:hover .activity-date {
            box-shadow: 0 0 14px rgba(56, 200, 255, 0.25);
        }

        .activity-date .day {
            display: block;
            font-size: 1.1rem;
            font-weight: 700;
            font-feature-settings: "tnum";
        }

        .activity-info {
            flex: 1;
            min-width: 0;
        }

        .activity-info h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color 0.3s ease;
        }

        .activity-card:hover .activity-info h3 {
            color: var(--primary-300);
        }

        .activity-info p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .activity-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .activity-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        .activity-meta .status-live {
            color: var(--success);
            border-color: rgba(0, 232, 143, 0.25);
            background: rgba(0, 232, 143, 0.06);
        }

        .activity-link {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 28px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--primary-400);
            transition: all 0.3s ease;
        }

        .activity-link i {
            font-size: 0.75rem;
            transition: transform 0.3s ease;
        }

        .activity-link:hover {
            color: var(--primary-300);
        }

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

        /* 右侧规则面板 */
        .aside-stack {
            display: flex;
            flex-direction: column;
            gap: 20px;
            position: sticky;
            top: 88px;
        }

        .rule-panel {
            position: relative;
            padding: 28px 24px;
            background: rgba(12, 23, 43, 0.7);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            overflow: hidden;
        }

        .rule-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.7), transparent 55%);
        }

        .rule-panel h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rule-panel h3 i {
            color: var(--primary-400);
            font-size: 0.875rem;
        }

        .rule-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rule-list li {
            display: flex;
            gap: 10px;
            font-size: 0.8125rem;
            color: var(--text-body);
            line-height: 1.6;
        }

        .rule-list li i {
            color: var(--success);
            font-size: 0.6875rem;
            margin-top: 5px;
            flex-shrink: 0;
        }

        .rule-panel .icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: rgba(56, 200, 255, 0.1);
            border: 1px solid rgba(110, 231, 255, 0.15);
            color: var(--primary-300);
            font-size: 0.875rem;
            margin-bottom: 12px;
        }

        .contact-mini-card {
            position: relative;
            padding: 24px;
            background: var(--bg-elev);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            overflow: hidden;
        }

        .contact-mini-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.6), transparent 50%);
        }

        .contact-mini-card h3 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

        .contact-mini-card p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .contact-mini-card .phone {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-300);
            letter-spacing: 0.03em;
            margin-top: 6px;
        }

        /* ====== 特色区 ====== */
        .features-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 0.9fr;
            gap: 20px;
        }

        .feature-card {
            position: relative;
            padding: 30px 26px;
            background: var(--bg-elev);
            border: 1px solid var(--glass-border);
            border-radius: 18px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.7), transparent 60%);
        }

        .feature-card:hover {
            border-color: rgba(110, 231, 255, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
        }

        .feature-card .feat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 46px;
            height: 46px;
            border-radius: 14px;
            background: rgba(56, 200, 255, 0.12);
            border: 1px solid rgba(110, 231, 255, 0.2);
            color: var(--primary-300);
            font-size: 1rem;
            margin-bottom: 16px;
            box-shadow: 0 0 16px rgba(56, 200, 255, 0.08);
        }

        .feature-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 8px;
        }

        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ====== 流程区 ====== */
        .process-section {
            background: linear-gradient(180deg, transparent, rgba(12, 23, 43, 0.35), transparent);
        }

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

        .process-step {
            position: relative;
            text-align: center;
            padding: 28px 18px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .process-step::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
        }

        .process-step:hover {
            border-color: rgba(110, 231, 255, 0.25);
            transform: translateY(-3px);
        }

        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--grad-primary);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            font-feature-settings: "tnum";
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
            margin-bottom: 14px;
        }

        .process-step h3 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .process-step p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .step-arrow {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.15);
            font-size: 0.875rem;
            z-index: 2;
        }

        @media (max-width: 1023px) {
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-arrow {
                display: none;
            }
        }

        /* ====== FAQ ====== */
        .faq-list {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-elev);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(110, 231, 255, 0.3);
        }

        .faq-item::before {
            content: '';
            display: block;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.6), transparent 60%);
        }

        .faq-q {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 20px 22px;
            cursor: pointer;
            user-select: none;
        }

        .faq-q .faq-num {
            font-size: 0.8125rem;
            font-weight: 700;
            font-feature-settings: "tnum";
            color: rgba(127, 146, 184, 0.5);
            min-width: 28px;
        }

        .faq-q h3 {
            flex: 1;
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-strong);
            line-height: 1.5;
        }

        .faq-q .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            color: var(--text-muted);
            font-size: 0.75rem;
            transition: all 0.35s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(56, 200, 255, 0.1);
            border-color: rgba(110, 231, 255, 0.35);
            color: var(--primary-300);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
        }

        .faq-a-inner {
            padding: 0 22px 20px 64px;
            font-size: 0.875rem;
            color: var(--text-body);
            line-height: 1.75;
        }

        /* ====== CTA ====== */
        .cta-panel {
            position: relative;
            padding: 48px 40px;
            background: var(--bg-elev);
            border: 1px solid var(--glass-border);
            border-radius: 20px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.75), transparent 60%);
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(56, 200, 255, 0.1), transparent 70%);
            pointer-events: none;
        }

        .cta-text h2 {
            font-size: clamp(1.25rem, 2.5vw, 1.7rem);
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 6px;
        }

        .cta-text p {
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        /* ====== 分页条 ====== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            padding: 32px 0 72px;
        }

        .pagination {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--glass-border);
            border-radius: 999px;
            backdrop-filter: blur(8px);
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 36px;
            height: 36px;
            padding: 0 12px;
            border-radius: 999px;
            font-size: 0.8125rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .pagination a:hover {
            color: var(--text-strong);
            background: rgba(255, 255, 255, 0.08);
        }

        .pagination .current {
            color: #fff;
            background: rgba(56, 200, 255, 0.15);
            border: 1px solid rgba(110, 231, 255, 0.35);
            box-shadow: 0 0 18px rgba(0, 212, 255, 0.2);
        }

        .pagination .page-prev,
        .pagination .page-next {
            font-size: 0.75rem;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* ====== 页脚 ====== */
        .site-footer {
            background: var(--bg-base);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 15%;
            right: 15%;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(110, 231, 255, 0.5), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 40px;
            padding-top: 60px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-strong);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-links h4,
        .footer-service h4 {
            font-size: 0.9375rem;
            font-weight: 600;
            color: var(--text-strong);
            margin-bottom: 14px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.8125rem;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .footer-links a:hover {
            color: var(--primary-300);
            padding-left: 4px;
        }

        .footer-service p {
            font-size: 0.8125rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 18px;
            padding-bottom: 20px;
        }

        .footer-bottom .container {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            justify-content: space-between;
        }

        .footer-bottom span {
            font-size: 0.75rem;
            color: rgba(127, 146, 184, 0.7);
        }

        /* ====== 响应式 ====== */
        @media (max-width: 1199px) {
            .activity-layout {
                grid-template-columns: 1fr 300px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 1023px) {
            .header-cta {
                display: none;
            }
            .menu-toggle {
                display: inline-flex;
            }
            .main-nav {
                display: none;
            }
            .activity-layout {
                grid-template-columns: 1fr;
            }
            .aside-stack {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .section-block {
                padding: 48px 0;
            }
            .activity-section {
                padding-top: 48px;
            }
            .page-hero {
                min-height: 360px;
                padding-top: 100px;
                padding-bottom: 44px;
            }
            .hero-title-wrap h1 {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.875rem;
            }
            .activity-card {
                flex-direction: column;
                gap: 12px;
                padding: 18px;
                border-radius: 14px;
            }
            .activity-date {
                width: auto;
                display: inline-flex;
                align-items: center;
                gap: 6px;
                padding: 4px 12px;
            }
            .activity-date .day {
                display: inline;
                font-size: 0.9rem;
            }
            .activity-link {
                margin-top: 4px;
                align-self: flex-start;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .aside-stack {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-top: 40px;
            }
            .cta-panel {
                flex-direction: column;
                padding: 32px 24px;
                align-items: flex-start;
            }
            .cta-actions {
                width: 100%;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-ghost {
                flex: 1;
                justify-content: center;
                padding: 12px 16px;
            }
            .process-steps {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .footer-bottom .container {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn-primary,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }
            .activity-meta {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-links,
            .footer-service {
                margin-top: 4px;
            }
        }

/* roulang page: category4 */
:root {
    --bg-base: #060B14;
    --bg-elev: #0C172B;
    --primary-300: #6EE7FF;
    --primary-400: #38C8FF;
    --primary-500: #2A6EFF;
    --grad-primary: linear-gradient(135deg, #2A6EFF 0%, #00D4FF 100%);
    --accent: #FF7A2F;
    --success: #00E88F;
    --text-strong: #EDF4FF;
    --text-body: #B8C7E0;
    --text-muted: #7F92B8;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.12);
    --glass-highlight: rgba(255,255,255,0.8);
    --radius-lg: 20px;
    --radius-md: 14px;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-body);
    line-height: 1.75;
    font-size: 0.9375rem;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: var(--primary-400);
    text-decoration: none;
    transition: color 0.25s ease, opacity 0.25s ease;
}

a:hover {
    color: var(--primary-300);
}

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

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

input,
textarea {
    font-family: inherit;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

/* ===== 玻璃高光 ===== */
.glass-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
}

.glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 120px;
    height: 1px;
    background: linear-gradient(90deg, var(--glass-highlight), transparent);
    border-radius: 2px;
    pointer-events: none;
}

/* ===== 按钮 ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--grad-primary);
    color: #fff;
    border-radius: 12px;
    padding: 12px 28px;
    font-size: 0.9375rem;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.25);
    transition: transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
    text-decoration: none;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 34px rgba(0, 212, 255, 0.45);
    color: #fff;
    filter: brightness(1.05);
}

.btn-primary:active {
    filter: brightness(0.9);
    transform: translateY(0);
}

.btn-primary:focus-visible {
    outline: 3px solid rgba(56, 200, 255, 0.4);
    outline-offset: 2px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--glass-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-strong);
    border-radius: 12px;
    padding: 12px 28px;
    font-size: 0.9375rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease, transform 0.25s ease;
    text-decoration: none;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    transform: translateY(-2px);
}

.btn-secondary:active {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(0);
}

.btn-narrow {
    padding: 8px 20px;
    font-size: 0.875rem;
    border-radius: 999px;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 64px;
    background: transparent;
    transition: background 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
    border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
    background: rgba(6, 11, 20, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 20px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--grad-primary);
    color: #fff;
    font-weight: 800;
    font-size: 0.9375rem;
    letter-spacing: -0.02em;
    box-shadow: 0 0 18px rgba(0, 212, 255, 0.35);
}

.logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-strong);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.main-nav::-webkit-scrollbar {
    display: none;
}

.nav-tab {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
    transition: all 0.25s ease;
    text-decoration: none;
    border: 1px solid transparent;
}

.nav-tab:hover {
    color: var(--text-strong);
    background: rgba(255, 255, 255, 0.06);
}

.nav-tab.active {
    color: #fff;
    background: linear-gradient(135deg, rgba(42, 110, 255, 0.3), rgba(0, 212, 255, 0.15));
    border-color: rgba(56, 200, 255, 0.35);
    box-shadow: 0 0 14px rgba(56, 200, 255, 0.18);
}

.header-cta {
    flex-shrink: 0;
}

/* ===== 页面头 ===== */
.page-head {
    position: relative;
    padding: 150px 0 60px;
    background:
        linear-gradient(135deg, rgba(6, 11, 20, 0.92) 0%, rgba(12, 23, 43, 0.85) 50%, rgba(6, 11, 20, 0.95) 100%),
        url('/assets/images/backpic/back-3.png') center 30% / cover no-repeat;
    overflow: hidden;
}

.page-head::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -80px;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.15), transparent 65%);
    pointer-events: none;
}

.breadcrumb {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.breadcrumb a:hover {
    color: var(--primary-300);
}

.breadcrumb-sep {
    color: rgba(255, 255, 255, 0.2);
}

.page-title {
    display: flex;
    align-items: center;
    gap: 14px;
}

.title-bar {
    display: inline-block;
    width: 4px;
    height: 28px;
    background: var(--accent);
    border-radius: 2px;
    flex-shrink: 0;
}

.page-title h1 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--text-strong);
    letter-spacing: 0.01em;
    margin: 0;
}

.page-head-desc {
    margin-top: 18px;
    max-width: 760px;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-body);
}

/* ===== 问题分类快览 ===== */
.faq-categories {
    padding: 72px 0 16px;
}

.cate-card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    border-radius: var(--radius-lg);
    padding: 40px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.cate-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 160px;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.7), transparent);
}

.cate-card::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -60px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.1), transparent 60%);
    pointer-events: none;
}

.cate-content {
    position: relative;
    z-index: 1;
}

.cate-content h2 {
    font-size: clamp(1.4rem, 2.4vw, 1.75rem);
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 12px;
}

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

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(56, 200, 255, 0.1);
    border: 1px solid rgba(56, 200, 255, 0.2);
    color: var(--primary-300);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all 0.25s ease;
    text-decoration: none;
}

.tag-pill:hover {
    background: rgba(56, 200, 255, 0.18);
    border-color: rgba(56, 200, 255, 0.4);
    color: #fff;
    transform: translateY(-2px);
}

.cate-image {
    position: relative;
    z-index: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.cate-image img {
    width: 100%;
    height: 100%;
    min-height: 240px;
    object-fit: cover;
    height: 260px;
}

.cate-image-tag {
    position: absolute;
    bottom: 12px;
    left: 12px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(6, 11, 20, 0.75);
    color: var(--primary-300);
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(56, 200, 255, 0.25);
}

/* ===== FAQ 区块 ===== */
.faq-section {
    padding: 72px 0 32px;
}

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

.section-head .section-eyebrow {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    background: rgba(56, 200, 255, 0.1);
    border: 1px solid rgba(56, 200, 255, 0.2);
    color: var(--primary-300);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.03em;
    margin-bottom: 14px;
}

.section-head h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 10px;
}

.section-head p {
    max-width: 760px;
    margin: 0 auto;
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.faq-wrap {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-md);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.faq-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.7), transparent);
    z-index: 1;
}

.faq-item:hover {
    border-color: rgba(56, 200, 255, 0.3);
}

.faq-item.open {
    border-color: rgba(56, 200, 255, 0.4);
    box-shadow: 0 0 28px rgba(56, 200, 255, 0.1), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    padding: 20px 24px;
    text-align: left;
    cursor: pointer;
    background: transparent;
    transition: background 0.25s ease;
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.03);
}

.faq-num {
    font-family: var(--font-num);
    font-size: 0.9375rem;
    font-weight: 600;
    color: rgba(127, 146, 184, 0.6);
    min-width: 36px;
    letter-spacing: 0.05em;
}

.faq-item.open .faq-num {
    color: var(--primary-300);
}

.faq-title {
    flex: 1;
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-strong);
    line-height: 1.4;
}

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 400;
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
    flex-shrink: 0;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(56, 200, 255, 0.15);
    border-color: rgba(56, 200, 255, 0.4);
    color: var(--primary-300);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 24px;
}

.faq-answer-inner {
    padding: 0 0 22px 52px;
}

.faq-answer p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--text-body);
}

/* ===== 辅助链接条 ===== */
.faq-more-help {
    padding: 40px 0 16px;
}

.help-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    padding: 28px 36px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(42, 110, 255, 0.1), rgba(0, 212, 255, 0.04));
    border: 1px solid rgba(56, 200, 255, 0.2);
    backdrop-filter: blur(10px);
}

.help-strip-left {
    flex: 1;
    min-width: 260px;
}

.help-strip-left h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 6px;
}

.help-strip-left p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.help-strip-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ===== CTA ===== */
.faq-cta {
    padding: 56px 0 0;
}

.cta-panel {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
    align-items: center;
    padding: 44px 48px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(12, 23, 43, 0.9), rgba(6, 11, 20, 0.75));
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}

.cta-panel::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(110, 231, 255, 0.6), transparent);
}

.cta-panel::after {
    content: "";
    position: absolute;
    right: -80px;
    bottom: -80px;
    width: 280px;
    height: 280px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12), transparent 60%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-content h2 {
    font-size: clamp(1.5rem, 2.8vw, 2rem);
    font-weight: 700;
    color: var(--text-strong);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 0.9375rem;
    color: var(--text-body);
    line-height: 1.75;
}

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

/* ===== 分页条 ===== */
.pagination-section {
    padding: 56px 0 72px;
}

.pagination-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: 999px;
    backdrop-filter: blur(12px);
    width: fit-content;
    margin: 0 auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.page-num,
.page-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: all 0.25s ease;
    text-decoration: none;
    border: 1px solid transparent;
}

.page-num:hover,
.page-arrow:hover {
    color: var(--text-strong);
    background: rgba(255, 255, 255, 0.06);
}

.page-num.active {
    background: var(--grad-primary);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 16px rgba(0, 212, 255, 0.35);
}

.page-arrow.is-disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===== 页脚 ===== */
.site-footer {
    background-color: #080E1A;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.4), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 1fr;
    gap: 48px;
    padding: 64px 0 40px;
}

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

.footer-logo .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 0.8125rem;
    border-radius: 8px;
}

.footer-logo span:last-child {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text-strong);
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 360px;
}

.footer-links h4,
.footer-service h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-strong);
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color 0.25s, transform 0.25s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.footer-links a:hover {
    color: var(--primary-300);
    transform: translateX(3px);
}

.footer-service p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    line-height: 1.6;
}

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

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom span {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 1199px) {
    .cate-card {
        grid-template-columns: 1fr 0.9fr;
        padding: 32px;
        gap: 32px;
    }
}

@media (max-width: 991px) {
    .header-inner {
        gap: 12px;
    }

    .main-nav {
        order: 3;
        width: 100%;
        margin-top: 4px;
        border-radius: 14px;
    }

    .site-header {
        height: auto;
        padding: 8px 0 4px;
    }

    .header-inner {
        flex-wrap: wrap;
        height: auto;
        padding-top: 8px;
    }

    .page-head {
        padding-top: 160px;
    }

    .cate-card {
        grid-template-columns: 1fr;
    }

    .cate-image img {
        max-height: 220px;
        min-height: 200px;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }

    .cta-panel {
        grid-template-columns: 1fr;
        padding: 32px;
    }
}

@media (max-width: 767px) {
    .header-inner {
        flex-wrap: nowrap;
    }

    .site-header {
        padding: 0;
    }

    .header-inner {
        height: 64px;
    }

    .logo-text {
        font-size: 0.9375rem;
    }

    .logo-mark {
        width: 32px;
        height: 32px;
        font-size: 0.8125rem;
    }

    .main-nav {
        order: 0;
        width: auto;
        margin: 0;
        border-radius: 999px;
        flex: 1;
        justify-content: flex-start;
        overflow-x: auto;
    }

    .nav-tab {
        padding: 7px 14px;
        font-size: 0.8125rem;
    }

    .header-cta .btn-narrow {
        padding: 6px 14px;
        font-size: 0.8125rem;
    }

    .page-head {
        padding: 130px 0 44px;
    }

    .breadcrumb {
        font-size: 0.75rem;
    }

    .page-head-desc {
        font-size: 0.875rem;
    }

    .cate-card {
        padding: 24px;
        border-radius: var(--radius-md);
    }

    .cate-image img {
        height: 200px;
    }

    .faq-wrap {
        gap: 8px;
    }

    .faq-question {
        padding: 16px 16px;
        gap: 12px;
    }

    .faq-num {
        min-width: 28px;
        font-size: 0.8125rem;
    }

    .faq-title {
        font-size: 0.9375rem;
    }

    .faq-answer-inner {
        padding: 0 0 18px 44px;
    }

    .help-strip {
        padding: 24px;
        flex-direction: column;
        align-items: flex-start;
    }

    .help-strip-actions {
        width: 100%;
    }

    .help-strip-actions .btn-primary,
    .help-strip-actions .btn-secondary {
        flex: 1;
        justify-content: center;
    }

    .cta-panel {
        grid-template-columns: 1fr;
        padding: 28px 24px;
    }

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

    .cta-actions .btn-primary,
    .cta-actions .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .pagination-bar {
        gap: 4px;
        padding: 6px 10px;
    }

    .page-num,
    .page-arrow {
        padding: 6px 10px;
        font-size: 0.8125rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        padding: 48px 0 32px;
        gap: 28px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 520px) {
    .logo-text {
        max-width: 110px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .nav-tab {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

    .header-cta .btn-narrow {
        padding: 6px 10px;
        font-size: 0.75rem;
    }

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

    .tag-pill {
        padding: 5px 10px;
        font-size: 0.75rem;
    }
}