/* roulang page: index */
:root{
  --primary:#1d4ed8;--primary-dark:#1e3a8a;--primary-light:#3b82f6;
  --accent:#f59e0b;--accent-light:#fcd34d;--bg-night:#0b1020;--bg-soft:#f1f5f9;
  --text-main:#0f172a;--text-weak:#64748b;--border:#e2e8f0;
  --radius:18px;--radius-sm:10px;--shadow-card:0 10px 30px rgba(2,6,23,.08);
  --shadow-hover:0 18px 45px rgba(2,6,23,.13);--header-h:72px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7;background:#fff;color:var(--text-main);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:color .25s ease}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
.container-x{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--primary);background:rgba(29,78,216,.08);padding:6px 16px;border-radius:999px;margin-bottom:16px}
.section-title{font-size:clamp(1.8rem,3.4vw,2.6rem);font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--text-main);margin:0 0 14px}
.section-sub{font-size:1.05rem;color:var(--text-weak);margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:.95rem;line-height:1;transition:all .28s ease;border:none;outline:none}
.btn-primary{background:var(--accent);color:#0f172a;box-shadow:0 6px 22px rgba(245,158,11,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(245,158,11,.45);background:#fbbf24}
.btn-dark{background:var(--primary-dark);color:#fff;box-shadow:0 6px 22px rgba(30,58,138,.3)}
.btn-dark:hover{transform:translateY(-2px);background:#1e40af}
.btn-outline{border:1px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--border);color:var(--text-main);background:#fff}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:1.32rem;font-weight:800;letter-spacing:-.02em;color:var(--primary-dark)}
.logo .logo-dot{width:10px;height:10px;border-radius:99px;background:var(--accent);box-shadow:0 0 0 4px rgba(245,158,11,.22)}
.logo small{font-size:.72rem;font-weight:600;color:var(--text-weak);letter-spacing:.04em;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:9px 18px;font-size:.93rem;font-weight:500;color:#334155;border-radius:999px;transition:all .25s ease}
.nav-link:hover{color:var(--primary);background:var(--bg-soft)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{content:'';position:absolute;left:50%;bottom:4px;transform:translateX(-50%);width:4px;height:4px;border-radius:99px;background:var(--primary)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:10px;border:1px solid var(--border);background:#fff;align-items:center;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;background:#0f172a;border-radius:99px;transition:all .25s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;min-height:680px;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,16,32,.88) 0%,rgba(11,16,32,.55) 50%,rgba(11,16,32,.35) 100%)}
.hero-content{position:relative;z-index:1;max-width:760px;padding:80px 0}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 18px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#fff;font-size:.85rem;backdrop-filter:blur(8px);margin-bottom:22px}
.hero h1{font-size:clamp(2.3rem,5.4vw,4rem);line-height:1.12;color:#fff;font-weight:800;letter-spacing:-.02em;margin:0 0 20px}
.hero h1 .accent{color:var(--accent-light)}
.hero p{font-size:clamp(1rem,1.6vw,1.18rem);color:rgba(255,255,255,.86);max-width:580px;margin:0 0 34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-meta{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.7);font-size:.9rem}
.hero-meta .avatar-stack{display:flex}
.hero-meta .avatar-stack span{width:26px;height:26px;border-radius:99px;background:linear-gradient(45deg,var(--primary-light),var(--accent));border:2px solid rgba(255,255,255,.55);margin-left:-6px}
.hero-meta .avatar-stack span:first-child{margin-left:0}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-card);padding:28px;transition:all .3s ease;overflow:hidden}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#c7d2fe}
.card-img{position:relative;margin:-28px -28px 22px;height:190px;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-img img{transform:scale(1.05)}
.card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,16,32,.35))}
.card-tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:.76rem;font-weight:600;background:rgba(29,78,216,.08);color:var(--primary);margin-bottom:12px}
.card h3{font-size:1.18rem;font-weight:700;margin:0 0 10px;line-height:1.4}
.card p{font-size:.92rem;color:var(--text-weak);margin:0 0 18px;line-height:1.65}
.card-link{font-size:.88rem;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.card-link:hover{gap:10px}
.stats-section{background:var(--bg-night);padding:80px 0;position:relative;overflow:hidden}
.stats-section::before{content:'';position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.18),transparent 65%)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;position:relative;z-index:1}
.stat-item{text-align:center;padding:24px}
.stat-number{font-size:clamp(2rem,4vw,3.2rem);font-weight:800;color:#fff;line-height:1.1;letter-spacing:-.03em}
.stat-number .suffix{color:var(--accent)}
.stat-label{font-size:.9rem;color:rgba(255,255,255,.65);margin-top:8px}
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:300px;display:flex;align-items:flex-end;box-shadow:var(--shadow-card);transition:all .3s ease;border:1px solid var(--border)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover img{transform:scale(1.05)}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,16,32,.12) 0%,rgba(11,16,32,.78) 100%)}
.cat-card-body{position:relative;z-index:1;padding:30px;color:#fff;width:100%}
.cat-card-body h3{font-size:1.45rem;font-weight:700;margin:0 0 8px}
.cat-card-body p{font-size:.9rem;color:rgba(255,255,255,.82);margin:0 0 14px}
.cat-card-body .cat-link{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;font-weight:600;color:var(--accent-light)}
.news-section{background:var(--bg-soft)}
.news-item{display:flex;align-items:flex-start;gap:22px;padding:24px 28px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:14px;transition:all .28s ease}
.news-item:hover{box-shadow:var(--shadow-card);transform:translateX(4px);border-color:#c7d2fe}
.news-index{font-size:1.6rem;font-weight:800;color:var(--border);min-width:44px;line-height:1}
.news-info{flex:1;min-width:0}
.news-cat{display:inline-block;font-size:.74rem;font-weight:600;color:var(--primary);background:rgba(29,78,216,.07);padding:3px 10px;border-radius:999px;margin-bottom:8px}
.news-info h3{margin:0 0 6px;font-size:1.08rem;font-weight:600;line-height:1.45}
.news-info h3 a:hover{color:var(--primary)}
.news-info p{margin:0;font-size:.88rem;color:var(--text-weak);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-time{font-size:.82rem;color:var(--text-weak);white-space:nowrap;padding-top:4px}
.news-empty{padding:40px;text-align:center;color:var(--text-weak);background:#fff;border-radius:var(--radius-sm);border:1px dashed var(--border)}
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-item{position:relative;padding:28px 22px;background:var(--bg-soft);border-radius:var(--radius);border:1px solid var(--border);transition:all .3s ease}
.step-item:hover{background:#fff;box-shadow:var(--shadow-card);transform:translateY(-4px)}
.step-num{width:44px;height:44px;border-radius:14px;background:var(--primary-dark);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;margin-bottom:18px}
.step-item h3{font-size:1.05rem;font-weight:700;margin:0 0 8px}
.step-item p{font-size:.88rem;color:var(--text-weak);margin:0}
.step-arrow{position:absolute;top:50%;right:-18px;transform:translateY(-50%);color:var(--border);font-size:1.2rem;z-index:2}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:24px;transition:all .25s ease}
.faq-item:hover{border-color:#c7d2fe;box-shadow:var(--shadow-card)}
.faq-item h3{font-size:1rem;font-weight:600;margin:0 0 10px;padding-left:26px;position:relative}
.faq-item h3::before{content:'Q';position:absolute;left:0;font-size:.8rem;font-weight:800;color:var(--primary);background:rgba(29,78,216,.1);width:18px;height:18px;border-radius:6px;display:flex;align-items:center;justify-content:center;top:2px}
.faq-item p{margin:0;font-size:.9rem;color:var(--text-weak);padding-left:26px}
.cta-section{position:relative;padding:90px 0;text-align:center;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,16,32,.9),rgba(30,58,138,.72))}
.cta-inner{position:relative;z-index:1;max-width:700px;margin:0 auto}
.cta-inner h2{font-size:clamp(1.9rem,3.6vw,2.6rem);color:#fff;font-weight:800;letter-spacing:-.02em;margin:0 0 16px}
.cta-inner p{color:rgba(255,255,255,.85);font-size:1.05rem;margin:0 0 32px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.site-footer{background:var(--bg-night);color:rgba(255,255,255,.72);padding:70px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:46px}
.footer-logo{font-size:1.3rem;font-weight:800;color:#fff;display:inline-flex;align-items:center;gap:9px;margin-bottom:16px}
.footer-logo .logo-dot{width:9px;height:9px;border-radius:99px;background:var(--accent);box-shadow:0 0 0 4px rgba(245,158,11,.2)}
.footer-brand p{font-size:.9rem;line-height:1.7;margin:0;max-width:300px}
.footer-col h4{font-size:.95rem;color:#fff;font-weight:600;margin:0 0 16px}
.footer-col a,.footer-col span{display:block;font-size:.88rem;padding:5px 0;color:rgba(255,255,255,.68);transition:all .2s ease}
.footer-col a:hover{color:var(--accent-light);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:.82rem;color:rgba(255,255,255,.5)}
@media(max-width:1024px){
  .section{padding:76px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .step-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .step-arrow{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .nav-toggle{display:flex}
  .nav-links{position:absolute;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px 20px;gap:6px;border-bottom:1px solid var(--border);box-shadow:0 20px 40px rgba(2,6,23,.08);transform-origin:top;transition:all .3s ease;opacity:0;visibility:hidden;transform:scaleY(.92)}
  .nav-links.open{opacity:1;visibility:visible;transform:scaleY(1)}
  .nav-link{justify-content:center;padding:12px 16px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(29,78,216,.08)}
  .hero{min-height:560px}
  .hero-content{padding:56px 0}
  .faq-grid{grid-template-columns:1fr}
  .news-item{flex-direction:column;gap:10px;padding:20px}
  .news-time{white-space:normal}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
}
@media(max-width:520px){
  .hero h1{font-size:2rem}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr 1fr}
  .card-img{height:160px}
  .step-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .section-head{margin-bottom:38px}
}

/* roulang page: article */
:root {
    --primary: #4F46E5;
    --primary-light: #6366F1;
    --primary-dark: #3730A3;
    --bg: #F6F7FB;
    --bg-light: #FFFFFF;
    --text-main: #1E293B;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --radius: 16px;
    --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.07);
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.05);
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
    transition: all 0.25s ease;
}
button {
    cursor: pointer;
    border: none;
    background: none;
}
.container-x {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
}
.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}
.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #0F172A;
}
.logo small {
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(79, 70, 229, 0.08);
    padding: 2px 8px;
    border-radius: 20px;
    margin-left: 4px;
}
.logo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366F1, #A855F7);
    box-shadow: 0 0 12px rgba(99, 102, 241, 0.5);
    flex-shrink: 0;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
}
.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: #475569;
    padding: 8px 0;
    position: relative;
    transition: color 0.25s;
}
.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #4F46E5, #A855F7);
    border-radius: 4px;
    transition: width 0.3s ease;
}
.nav-link:hover {
    color: var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}
.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: rgba(79, 70, 229, 0.06);
}
.nav-toggle span {
    width: 22px;
    height: 2px;
    background: #1E293B;
    border-radius: 4px;
    transition: all 0.3s;
}
.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Article Hero */
.article-hero {
    position: relative;
    min-height: 460px;
    display: flex;
    align-items: center;
    color: #fff;
    overflow: hidden;
}
.article-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
}
.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(11, 17, 32, 0.95) 0%, rgba(11, 17, 32, 0.78) 55%, rgba(15, 23, 42, 0.45) 100%);
}
.article-hero-inner {
    position: relative;
    z-index: 10;
    padding: 80px 0;
    max-width: 860px;
}
.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 28px;
}
.article-breadcrumb a {
    color: rgba(255, 255, 255, 0.75);
}
.article-breadcrumb a:hover {
    color: #F59E0B;
}
.article-breadcrumb .sep {
    opacity: 0.5;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.85), rgba(168, 85, 247, 0.85));
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 30px;
    letter-spacing: 0.04em;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
    margin-bottom: 18px;
}
.article-hero h1 {
    font-size: 40px;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: 20px;
    max-width: 760px;
}
.article-hero-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    max-width: 640px;
    margin-bottom: 26px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.article-meta i {
    color: #F59E0B;
}

/* Article Main */
.article-section {
    padding: 64px 0 72px;
    background: var(--bg);
}
.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    max-width: 880px;
    margin: 0 auto;
}
.article-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.5);
}
.article-body {
    padding: 48px 56px;
}
.article-body .article-lead {
    font-size: 18px;
    line-height: 1.9;
    color: #334155;
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.04), rgba(168, 85, 247, 0.03));
    border-left: 4px solid var(--primary);
    padding: 18px 24px;
    border-radius: 0 12px 12px 0;
    margin-bottom: 32px;
    font-weight: 500;
}
.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    color: #0F172A;
    margin: 36px 0 16px;
    line-height: 1.4;
}
.article-body h3 {
    font-size: 21px;
    font-weight: 700;
    color: #1E293B;
    margin: 28px 0 12px;
    line-height: 1.4;
}
.article-body p {
    font-size: 16.5px;
    line-height: 1.9;
    color: #3F4A5A;
    margin-bottom: 20px;
}
.article-body ul {
    margin: 20px 0;
    padding-left: 8px;
    list-style: none;
}
.article-body ul li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 10px;
    font-size: 16px;
    line-height: 1.8;
    color: #3F4A5A;
}
.article-body ul li::before {
    content: "✦";
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--primary);
    font-size: 14px;
}
.article-body ol {
    margin: 20px 0;
    padding-left: 24px;
    counter-reset: item;
}
.article-body ol li {
    margin-bottom: 10px;
    padding-left: 8px;
    font-size: 16px;
    line-height: 1.8;
    color: #3F4A5A;
}
.article-body blockquote {
    border-left: 4px solid #F59E0B;
    background: #FFFBEB;
    padding: 18px 24px;
    border-radius: 0 14px 14px 0;
    margin: 28px 0;
    font-style: italic;
    color: #78350F;
    font-size: 16px;
    line-height: 1.8;
}
.article-body img {
    border-radius: 14px;
    margin: 24px 0;
    box-shadow: var(--shadow-md);
}
.article-body a {
    color: var(--primary);
    border-bottom: 1px solid rgba(79, 70, 229, 0.3);
}
.article-body a:hover {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}
.article-body code {
    background: #F1F5F9;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.9em;
    color: #7C3AED;
}
.article-body pre {
    background: #0F172A;
    color: #E2E8F0;
    padding: 24px;
    border-radius: 14px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px;
    line-height: 1.7;
}

/* Tags */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding: 22px 32px;
    border-top: 1px solid var(--border);
    background: #FAFBFF;
}
.tag-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-right: 4px;
}
.tag-chip {
    display: inline-flex;
    align-items: center;
    background: rgba(79, 70, 229, 0.07);
    color: var(--primary);
    font-size: 13px;
    font-weight: 500;
    padding: 5px 14px;
    border-radius: 20px;
    transition: all 0.25s;
}
.tag-chip:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

/* Article footer nav */
.article-footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 22px 32px;
    border-top: 1px solid var(--border);
    background: #fff;
}
.btn-return,
.btn-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 28px;
    transition: all 0.3s;
}
.btn-return {
    color: #64748B;
    border: 1px solid #E2E8F0;
    background: #fff;
}
.btn-return:hover {
    border-color: #94A3B8;
    color: #0F172A;
    transform: translateX(-3px);
}
.btn-more {
    color: #fff;
    background: linear-gradient(135deg, #4F46E5, #A855F7);
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
}
.btn-more:hover {
    transform: translateX(3px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.4);
}

/* Not Found */
.not-found {
    text-align: center;
    padding: 80px 24px;
    background: #fff;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
}
.not-found-icon {
    font-size: 56px;
    color: #CBD5E1;
    margin-bottom: 20px;
}
.not-found h2 {
    font-size: 28px;
    font-weight: 700;
    color: #0F172A;
    margin-bottom: 12px;
}
.not-found p {
    color: #64748B;
    font-size: 16px;
    margin-bottom: 28px;
}
.btn-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.3);
    transition: all 0.3s;
}
.btn-home:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(79, 70, 229, 0.4);
}

/* Related Section */
.related-section {
    padding: 80px 0 72px;
    background: linear-gradient(180deg, var(--bg) 0%, #F0F1F7 100%);
    border-top: 1px solid rgba(226, 232, 240, 0.6);
}
.section-head {
    text-align: center;
    margin-bottom: 48px;
}
.section-head .eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(79, 70, 229, 0.08);
    padding: 6px 16px;
    border-radius: 30px;
    margin-bottom: 14px;
}
.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    color: #0F172A;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}
.section-head p {
    font-size: 15px;
    color: #64748B;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.related-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(226, 232, 240, 0.5);
    transition: all 0.35s ease;
    display: block;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.2);
}
.related-thumb {
    height: 200px;
    overflow: hidden;
    position: relative;
}
.related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
    transform: scale(1.06);
}
.related-thumb::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(15, 23, 42, 0.18));
}
.related-body {
    padding: 24px 24px 26px;
}
.related-cat {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(79, 70, 229, 0.07);
    padding: 3px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
}
.related-body h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.45;
    color: #0F172A;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 52px;
}
.related-desc {
    font-size: 14px;
    color: #64748B;
    line-height: 1.65;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
    min-height: 46px;
}
.related-time {
    font-size: 13px;
    color: #94A3B8;
    display: flex;
    align-items: center;
    gap: 6px;
}
.related-empty {
    text-align: center;
    padding: 48px 24px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 18px;
    border: 1px dashed var(--border);
    color: var(--text-muted);
    font-size: 15px;
}

/* CTA Section */
.cta-section {
    position: relative;
    padding: 76px 0;
    background: #0B1120;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.35), transparent 70%);
    top: -120px;
    right: -80px;
}
.cta-section::after {
    content: "";
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15), transparent 70%);
    bottom: -80px;
    left: 10%;
}
.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}
.cta-inner .cta-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #F59E0B;
    border: 1px solid rgba(245, 158, 11, 0.4);
    padding: 6px 18px;
    border-radius: 30px;
    margin-bottom: 22px;
}
.cta-inner h2 {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}
.cta-inner p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 34px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
}
.btn-cta-primary,
.btn-cta-ghost {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 40px;
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
}
.btn-cta-primary {
    background: linear-gradient(135deg, #4F46E5, #7C3AED);
    color: #fff;
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}
.btn-cta-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px rgba(79, 70, 229, 0.45);
}
.btn-cta-ghost {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.05);
}
.btn-cta-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
}

/* Footer */
.site-footer {
    background: #0B1120;
    color: #94A3B8;
    padding: 64px 0 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-brand p {
    margin-top: 18px;
    font-size: 14px;
    color: #8892A0;
    line-height: 1.8;
    max-width: 360px;
}
.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
}
.footer-col h4 {
    color: #E2E8F0;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 0.02em;
}
.footer-col a {
    display: block;
    font-size: 14px;
    color: #94A3B8;
    margin-bottom: 12px;
    transition: color 0.25s, padding-left 0.25s;
}
.footer-col a:hover {
    color: #fff;
    padding-left: 4px;
}
.footer-col span {
    display: block;
    font-size: 14px;
    color: #94A3B8;
    margin-bottom: 12px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #64748B;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .nav-links {
        gap: 24px;
    }
}
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 76px;
        right: 0;
        left: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: stretch;
        padding: 24px 24px 32px;
        gap: 4px;
        transform: translateY(-120%);
        transition: transform 0.35s ease;
        box-shadow: 0 20px 40px rgba(15, 23, 42, 0.08);
        border-bottom: 1px solid var(--border);
        z-index: 99;
    }
    .nav-links.open {
        transform: translateY(0);
    }
    .nav-link {
        padding: 14px 12px;
        font-size: 16px;
        border-radius: 12px;
    }
    .nav-link:hover,
    .nav-link.active {
        background: rgba(79, 70, 229, 0.06);
        color: var(--primary);
    }
    .nav-link::after {
        display: none;
    }
    .nav-toggle {
        display: flex;
    }
    .article-hero {
        min-height: 380px;
    }
    .article-hero h1 {
        font-size: 30px;
    }
    .article-body {
        padding: 32px 24px;
    }
    .article-body h2 {
        font-size: 22px;
    }
    .article-body h3 {
        font-size: 19px;
    }
    .article-body p {
        font-size: 15.5px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .cta-inner h2 {
        font-size: 26px;
    }
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    .btn-cta-primary,
    .btn-cta-ghost {
        width: 100%;
        justify-content: center;
    }
}
@media (max-width: 520px) {
    .container-x {
        padding: 0 18px;
    }
    .logo {
        font-size: 17px;
    }
    .logo small {
        display: none;
    }
    .nav-wrap {
        height: 64px;
    }
    .nav-links {
        top: 64px;
    }
    .article-hero h1 {
        font-size: 25px;
    }
    .article-hero-desc {
        font-size: 14.5px;
    }
    .article-meta {
        gap: 12px;
        font-size: 13px;
        flex-direction: column;
        align-items: flex-start;
    }
    .article-section {
        padding: 40px 0;
    }
    .article-card {
        border-radius: 14px;
    }
    .article-body {
        padding: 24px 18px;
    }
    .article-tags,
    .article-footer-nav {
        padding: 16px 18px;
        flex-direction: column;
        align-items: stretch;
    }
    .btn-return,
    .btn-more {
        justify-content: center;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .section-head h2 {
        font-size: 26px;
    }
    .cta-section {
        padding: 60px 0;
    }
    .cta-inner h2 {
        font-size: 23px;
    }
    .cta-inner p {
        font-size: 14.5px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 6px;
    }
}

/* roulang page: category1 */
:root {
      --night: #0B0F1C;
      --ink: #12182B;
      --body: #F4F6FC;
      --card: #FFFFFF;
      --line: #EAF0F8;
      --primary: #7C5CFF;
      --primary-dark: #5B3FE8;
      --accent: #F5B84A;
      --text: #1E293B;
      --muted: #64748B;
      --radius: 18px;
      --radius-lg: 26px;
      --shadow-sm: 0 4px 14px rgba(15, 23, 42, .06);
      --shadow: 0 14px 40px rgba(30, 41, 59, .09);
      --shadow-lg: 0 26px 70px rgba(30, 41, 59, .14);
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
      color: var(--text);
      background: var(--body);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

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

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

    .container-x {
      width: 100%;
      max-width: var(--container);
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255, 255, 255, 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(226, 232, 240, .8);
      transition: box-shadow .3s ease;
    }

    .site-header.scrolled {
      box-shadow: 0 10px 30px rgba(15, 23, 42, .08);
    }

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

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 1.2rem;
      font-weight: 800;
      letter-spacing: .01em;
      color: #111827;
      white-space: nowrap;
    }

    .logo-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: linear-gradient(135deg, var(--primary), #A78BFA);
      box-shadow: 0 0 0 4px rgba(124, 92, 255, .15);
    }

    .logo small {
      font-size: .62rem;
      font-weight: 700;
      color: var(--primary);
      text-transform: uppercase;
      letter-spacing: .14em;
      border: 1px solid #DDD9FF;
      padding: 2px 7px;
      border-radius: 999px;
      background: #F7F5FF;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .nav-link {
      position: relative;
      padding: 8px 2px;
      font-size: .95rem;
      font-weight: 500;
      color: #475569;
      transition: color .25s ease;
      white-space: nowrap;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 2px;
      background: linear-gradient(90deg, var(--primary), #A78BFA);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .3s ease;
    }

    .nav-link:hover,
    .nav-link.active {
      color: #111827;
    }

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

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      background: transparent;
      border: 0;
      padding: 8px;
      cursor: pointer;
    }

    .nav-toggle span {
      display: block;
      width: 22px;
      height: 2px;
      border-radius: 4px;
      background: #1E293B;
      transition: all .3s ease;
    }

    .nav-toggle:hover span {
      background: var(--primary);
    }

    .page-hero {
      position: relative;
      background: linear-gradient(135deg, rgba(11, 15, 28, .94), rgba(30, 27, 75, .86)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
      color: #fff;
      padding: 96px 0 90px;
    }

    .page-hero .breadcrumb {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: .85rem;
      color: #C7D2FE;
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .12);
      padding: 6px 14px;
      border-radius: 999px;
      backdrop-filter: blur(6px);
    }

    .page-hero .breadcrumb a:hover {
      color: #fff;
    }

    .hero-title {
      font-size: clamp(2rem, 5vw, 3.4rem);
      font-weight: 800;
      line-height: 1.2;
      letter-spacing: .01em;
      margin-top: 18px;
    }

    .hero-title .gradient-text {
      background: linear-gradient(120deg, #F5B84A, #A78BFA);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero-text {
      margin-top: 18px;
      max-width: 660px;
      font-size: 1.05rem;
      line-height: 1.85;
      color: rgba(255, 255, 255, .82);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 32px;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 24px;
      margin-top: 40px;
      font-size: .9rem;
      color: rgba(255, 255, 255, .7);
    }

    .hero-meta i {
      color: var(--accent);
      margin-right: 6px;
    }

    .btn-primary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 13px 26px;
      border-radius: 999px;
      font-size: .95rem;
      font-weight: 600;
      transition: all .3s ease;
      cursor: pointer;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), #8B5CF6);
      color: #fff;
      box-shadow: 0 12px 30px rgba(124, 92, 255, .35);
    }

    .btn-primary:hover {
      background: linear-gradient(135deg, #6D4AFF, #7C5CFF);
      box-shadow: 0 16px 38px rgba(124, 92, 255, .45);
      transform: translateY(-2px);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 8px 20px rgba(124, 92, 255, .3);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, .08);
      border-color: rgba(255, 255, 255, .28);
      color: #fff;
      backdrop-filter: blur(8px);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, .16);
      border-color: rgba(255, 255, 255, .5);
      transform: translateY(-2px);
    }

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

    .section {
      padding: 88px 0;
    }

    .section-alt {
      background: #fff;
    }

    .section-head {
      max-width: 620px;
      margin-bottom: 44px;
    }

    .section-head.center {
      margin-left: auto;
      margin-right: auto;
      text-align: center;
    }

    .section-head.left {
      margin-left: 0;
      text-align: left;
    }

    .section-kicker {
      display: inline-block;
      font-size: .78rem;
      font-weight: 700;
      letter-spacing: .16em;
      text-transform: uppercase;
      color: var(--primary);
      background: #F2EEFF;
      border-radius: 999px;
      padding: 4px 14px;
      margin-bottom: 10px;
    }

    .section-head h2 {
      font-size: clamp(1.7rem, 3vw, 2.4rem);
      font-weight: 800;
      line-height: 1.3;
      color: #111827;
      margin-top: 6px;
    }

    .section-head p {
      color: var(--muted);
      font-size: 1rem;
      margin-top: 12px;
      line-height: 1.8;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 32px;
    }

    .tag-chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 18px;
      border-radius: 999px;
      font-size: .88rem;
      font-weight: 500;
      color: #475569;
      background: #F8FAFC;
      border: 1px solid #E2E8F0;
      transition: all .25s ease;
      cursor: pointer;
    }

    .tag-chip:hover,
    .tag-chip.active {
      background: #F2EEFF;
      border-color: #C4B5FD;
      color: var(--primary);
      box-shadow: 0 6px 18px rgba(124, 92, 255, .12);
    }

    .news-card {
      position: relative;
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      display: flex;
      flex-direction: column;
      transition: transform .35s ease, box-shadow .35s ease;
    }

    .news-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
    }

    .news-cover {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
    }

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

    .news-card:hover .news-cover img {
      transform: scale(1.06);
    }

    .news-cover .cover-tag {
      position: absolute;
      top: 14px;
      left: 14px;
      font-size: .75rem;
      font-weight: 600;
      color: #fff;
      background: rgba(124, 92, 255, .88);
      padding: 5px 12px;
      border-radius: 999px;
      backdrop-filter: blur(4px);
    }

    .news-card-body {
      padding: 22px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex: 1;
    }

    .news-card-title {
      font-size: 1.05rem;
      font-weight: 700;
      line-height: 1.55;
      color: #111827;
      transition: color .2s;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-card:hover .news-card-title {
      color: var(--primary);
    }

    .news-card-text {
      font-size: .9rem;
      color: var(--muted);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: auto;
      padding-top: 14px;
      border-top: 1px solid #F1F5F9;
      font-size: .8rem;
      color: #94A3B8;
    }

    .news-card-meta i {
      color: var(--primary);
      margin-right: 5px;
    }

    .list-group {
      display: flex;
      flex-direction: column;
      gap: 0;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .list-item {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 22px 24px;
      border-bottom: 1px solid #F1F5F9;
      transition: background .25s ease, padding-left .25s ease;
    }

    .list-item:last-child {
      border-bottom: 0;
    }

    .list-item:hover {
      background: #F8FAFC;
      padding-left: 30px;
    }

    .list-date {
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      width: 58px;
      height: 58px;
      border-radius: 16px;
      background: #F2EEFF;
      color: var(--primary);
      font-size: .7rem;
      font-weight: 600;
      line-height: 1.2;
      text-align: center;
    }

    .list-date strong {
      font-size: 1.1rem;
      font-weight: 800;
    }

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

    .list-body h3 {
      font-size: 1rem;
      font-weight: 700;
      color: #111827;
      transition: color .2s;
    }

    .list-body p {
      font-size: .86rem;
      color: var(--muted);
      margin-top: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .list-item:hover .list-body h3 {
      color: var(--primary);
    }

    .list-arrow {
      flex-shrink: 0;
      width: 34px;
      height: 34px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      background: #F8FAFC;
      color: #94A3B8;
      transition: all .25s ease;
    }

    .list-item:hover .list-arrow {
      background: var(--primary);
      color: #fff;
      transform: translateX(4px);
    }

    .side-card {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: var(--shadow-sm);
      margin-bottom: 22px;
    }

    .side-card-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1rem;
      font-weight: 700;
      color: #111827;
      margin-bottom: 18px;
    }

    .side-card-title .side-icon {
      width: 34px;
      height: 34px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: #F2EEFF;
      color: var(--primary);
    }

    .side-topic {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 0;
      border-bottom: 1px dashed #E2E8F0;
      font-size: .9rem;
      font-weight: 500;
      color: #334155;
      transition: color .2s;
    }

    .side-topic:last-child {
      border-bottom: 0;
    }

    .side-topic:hover {
      color: var(--primary);
    }

    .side-topic .topic-dot {
      width: 6px;
      height: 6px;
      border-radius: 99px;
      background: linear-gradient(135deg, var(--primary), #F5B84A);
      flex-shrink: 0;
    }

    .form-subscribe {
      margin-top: 10px;
    }

    .form-subscribe label {
      display: block;
      font-size: .82rem;
      color: var(--muted);
      margin-bottom: 10px;
    }

    .form-subscribe .input-row {
      display: flex;
      gap: 8px;
    }

    .input-email {
      flex: 1;
      min-width: 0;
      border: 1px solid #E2E8F0;
      border-radius: 12px;
      padding: 10px 14px;
      font-size: .9rem;
      background: #F8FAFC;
      transition: border-color .2s, box-shadow .2s;
    }

    .input-email:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(124, 92, 255, .12);
      background: #fff;
    }

    .form-subscribe .btn-submit {
      flex-shrink: 0;
      border: 0;
      background: linear-gradient(135deg, var(--primary), #8B5CF6);
      color: #fff;
      font-size: .85rem;
      font-weight: 600;
      padding: 10px 18px;
      border-radius: 12px;
      cursor: pointer;
      transition: all .3s ease;
    }

    .form-subscribe .btn-submit:hover {
      box-shadow: 0 10px 24px rgba(124, 92, 255, .35);
      transform: translateY(-2px);
    }

    .stat-band {
      position: relative;
      background: linear-gradient(135deg, rgba(9, 13, 26, .94), rgba(36, 30, 82, .88)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
      padding: 84px 0;
      color: #fff;
    }

    .stat-card {
      text-align: center;
      padding: 24px 16px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .12);
      backdrop-filter: blur(8px);
      transition: transform .3s ease, background .3s ease;
    }

    .stat-card:hover {
      transform: translateY(-6px);
      background: rgba(255, 255, 255, .1);
    }

    .stat-card strong {
      display: block;
      font-size: 2.4rem;
      font-weight: 800;
      background: linear-gradient(120deg, #F5B84A, #A78BFA);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.2;
    }

    .stat-card span {
      display: block;
      margin-top: 8px;
      font-size: .92rem;
      color: rgba(255, 255, 255, .75);
    }

    .feature-card {
      position: relative;
      display: flex;
      flex-direction: column;
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid var(--line);
      background: #fff;
      transition: transform .35s ease, box-shadow .35s ease;
      min-height: 320px;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
    }

    .feature-img {
      width: 100%;
      height: 200px;
      object-fit: cover;
    }

    .feature-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 10px;
      flex: 1;
    }

    .feature-body .feature-label {
      font-size: .75rem;
      font-weight: 700;
      letter-spacing: .08em;
      color: var(--primary);
      background: #F2EEFF;
      padding: 4px 12px;
      border-radius: 999px;
      align-self: flex-start;
    }

    .feature-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      line-height: 1.5;
      color: #111827;
    }

    .feature-body p {
      font-size: .92rem;
      color: var(--muted);
      line-height: 1.75;
    }

    .feature-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: .9rem;
      font-weight: 600;
      color: var(--primary);
      margin-top: auto;
    }

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

    .feature-link i {
      transition: transform .25s ease;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 0;
      overflow: hidden;
      transition: box-shadow .25s ease;
    }

    .faq-item:hover {
      box-shadow: var(--shadow-sm);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 22px;
      font-size: .97rem;
      font-weight: 600;
      color: #111827;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: .85rem;
      color: var(--primary);
      transition: transform .3s ease;
      flex-shrink: 0;
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
    }

    .faq-item .faq-answer {
      padding: 0 22px 18px;
      font-size: .91rem;
      color: var(--muted);
      line-height: 1.8;
    }

    .cta-panel {
      position: relative;
      background: linear-gradient(135deg, rgba(11, 15, 28, .95), rgba(76, 29, 149, .85)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      border-radius: 36px;
      margin: 0 auto;
      max-width: 1160px;
      padding: 76px 32px;
      text-align: center;
      color: #fff;
      box-shadow: var(--shadow-lg);
    }

    .cta-panel h2 {
      font-size: clamp(1.6rem, 3vw, 2.4rem);
      font-weight: 800;
      line-height: 1.4;
    }

    .cta-panel p {
      margin-top: 12px;
      max-width: 560px;
      margin-left: auto;
      margin-right: auto;
      color: rgba(255, 255, 255, .8);
      font-size: 1rem;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 14px;
      margin-top: 28px;
    }

    .site-footer {
      background: var(--night);
      color: rgba(255, 255, 255, .75);
      padding: 68px 0 0;
      margin-top: 84px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr;
      gap: 44px;
    }

    .footer-brand .footer-logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
    }

    .footer-brand p {
      margin-top: 16px;
      font-size: .92rem;
      line-height: 1.8;
      color: rgba(255, 255, 255, .6);
      max-width: 360px;
    }

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: .95rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .footer-col a,
    .footer-col span {
      font-size: .9rem;
      color: rgba(255, 255, 255, .62);
      transition: color .2s ease;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .1);
      margin-top: 48px;
      padding: 22px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      font-size: .83rem;
      color: rgba(255, 255, 255, .45);
    }

    @media (max-width: 900px) {
      .nav-links {
        gap: 18px;
      }

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

      .section {
        padding: 64px 0;
      }
    }

    @media (max-width: 768px) {
      .nav-toggle {
        display: flex;
      }

      .nav-links {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        box-shadow: 0 20px 40px rgba(15, 23, 42, .08);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 24px 20px;
        display: none;
      }

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

      .nav-link {
        padding: 13px 4px;
        border-bottom: 1px solid #F1F5F9;
        font-size: 1rem;
      }

      .nav-link:last-child {
        border-bottom: 0;
      }

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

      .nav-link.active {
        color: var(--primary);
        font-weight: 700;
      }

      .nav-wrap {
        height: 64px;
      }

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

      .hero-meta {
        gap: 14px;
        font-size: .84rem;
      }

      .list-item {
        flex-wrap: wrap;
        padding: 18px;
        gap: 12px;
      }

      .list-body p {
        white-space: normal;
        overflow: visible;
        text-overflow: clip;
      }

      .list-arrow {
        display: none;
      }

      .faq-list {
        margin-top: 18px;
      }

      .cta-panel {
        padding: 56px 24px;
        border-radius: 26px;
      }

      .footer-bottom {
        justify-content: center;
        text-align: center;
      }
    }

    @media (max-width: 520px) {
      .container-x {
        padding-left: 18px;
        padding-right: 18px;
      }

      .logo {
        font-size: 1.05rem;
      }

      .logo small {
        font-size: .55rem;
      }

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

      .section-head h2 {
        font-size: 1.5rem;
      }

      .stat-card strong {
        font-size: 1.8rem;
      }

      .input-row {
        flex-direction: column;
      }

      .cta-actions {
        flex-direction: column;
      }

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

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

    .nav-link:focus-visible,
    .btn-primary:focus-visible,
    .btn-ghost:focus-visible,
    .tag-chip:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
    }

/* roulang page: category2 */
:root {
  --color-primary: #3b5bdb;
  --color-primary-dark: #2f47b8;
  --color-primary-light: #eef4ff;
  --color-accent: #0ea5e9;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-weak: #64748b;
  --color-border: #e2e8f0;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 1px 3px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-hover: 0 4px 12px rgba(0,0,0,0.08), 0 12px 32px rgba(0,0,0,0.06);
  --gap-section: 80px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *::before, *::after { box-sizing: border-box; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.2s; }
button { cursor: pointer; }
input, button { font-family: inherit; }

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

@media (max-width: 640px) {
  .container-x { padding: 0 16px; }
}

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226,232,240,0.7);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #1a2454;
  white-space: nowrap;
}

.logo small {
  font-size: 0.65rem;
  font-weight: 500;
  color: #94a3b8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 3px;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3b5bdb, #0ea5e9);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(59,91,219,0.1);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-weak);
  border-radius: 999px;
  transition: all 0.25s ease;
  position: relative;
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--color-primary);
  background: rgba(59,91,219,0.06);
}

.nav-link.active {
  color: var(--color-primary);
  background: rgba(59,91,219,0.08);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #1e293b;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle:hover { background: rgba(0,0,0,0.04); }

@media (max-width: 768px) {
  .nav-wrap { height: 64px; }
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px 20px;
    gap: 4px;
    box-shadow: 0 16px 32px rgba(0,0,0,0.06);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.28s ease;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: 10px;
  }
  .nav-link.active::after { display: none; }
  .nav-link.active {
    background: var(--color-primary-light);
  }
}

/* === Page Hero === */
.page-hero {
  position: relative;
  padding: 100px 0 80px;
  background-image: linear-gradient(135deg, rgba(26,36,84,0.92) 0%, rgba(15,23,42,0.85) 60%, rgba(2,132,199,0.75) 100%), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(56,189,248,0.12);
  top: -200px;
  right: -150px;
  filter: blur(60px);
}

.page-hero .container-x {
  position: relative;
  z-index: 2;
}

.page-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  letter-spacing: 0.04em;
}

.page-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  max-width: 720px;
}

.page-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.85);
  max-width: 600px;
  line-height: 1.7;
}

/* === Section 通用 === */
.section-pad { padding: 80px 0; }
.section-pad-sm { padding: 56px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .s-title {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0f172a;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-head .s-sub {
  font-size: 1rem;
  color: var(--color-text-weak);
  line-height: 1.7;
}
.section-head .s-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 0.03em;
}

/* === Download Card === */
.download-card {
  background: #fff;
  border-radius: 20px;
  padding: 36px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226,232,240,0.7);
  transition: all 0.3s ease;
  height: 100%;
  position: relative;
  overflow: hidden;
}

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

.download-card .dc-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.download-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #0f172a;
}

.download-card .dc-version {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-text-weak);
  background: #f1f5f9;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
  font-weight: 500;
}

.download-card p { color: var(--color-text-weak); font-size: 0.9rem; margin-bottom: 20px; line-height: 1.6; }

.download-card .dc-meta {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 0.8rem;
  color: var(--color-text-weak);
}

.download-card .dc-meta span { display: inline-flex; align-items: center; gap: 5px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  border: none;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59,91,219,0.3);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(59,91,219,0.4);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.btn-light {
  background: #fff;
  color: #1a2454;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}
.btn-light:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(0,0,0,0.14); }

.btn-block { width: 100%; }

/* === Step === */
.step-box {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(226,232,240,0.7);
  margin-bottom: 16px;
  transition: all 0.25s ease;
}
.step-box:hover { box-shadow: var(--shadow-card-hover); }

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, #3b5bdb, #0ea5e9);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.step-content h4 { font-size: 1.05rem; font-weight: 600; color: #0f172a; margin-bottom: 6px; }
.step-content p { font-size: 0.9rem; color: var(--color-text-weak); line-height: 1.7; }

/* === FAQ === */
.faq-item {
  background: #fff;
  border: 1px solid rgba(226,232,240,0.7);
  border-radius: 14px;
  padding: 24px;
  margin-bottom: 12px;
  transition: all 0.25s ease;
}
.faq-item:hover { border-color: #cbd5e1; box-shadow: var(--shadow-card); }
.faq-item h4 { font-size: 1rem; font-weight: 600; color: #0f172a; margin-bottom: 8px; }
.faq-item p { font-size: 0.92rem; color: var(--color-text-weak); line-height: 1.7; }

/* === CTA === */
.cta-section {
  background: linear-gradient(135deg, #1a2454 0%, #1e3a8a 50%, #0e7490 100%);
  border-radius: 24px;
  padding: 56px 48px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(56,189,248,0.15);
  top: -120px;
  right: -80px;
  filter: blur(50px);
}

/* === Footer === */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 64px 0 32px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(148,163,184,0.15);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  color: #94a3b8;
  max-width: 360px;
}

.footer-col h4 {
  color: #e2e8f0;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.footer-col a, .footer-col span {
  display: block;
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 12px;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 0.82rem;
  color: #64748b;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .page-hero h1 { font-size: 2rem; }
  .page-hero { padding: 70px 0 56px; }
  .section-pad { padding: 56px 0; }
  .section-head .s-title { font-size: 1.6rem; }
  .cta-section { padding: 40px 24px; }
}

/* === 微交互 === */
::selection { background: rgba(59,91,219,0.15); color: #1a2454; }

a:focus-visible, button:focus-visible {
  outline: 2px solid #3b5bdb;
  outline-offset: 2px;
}

/* === 安全提示条 === */
.security-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 12px;
  padding: 14px 20px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
}

.security-bar i { color: #7dd3fc; }

/* === 版本卡片 === */
.version-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #3b5bdb, #0ea5e9);
  padding: 3px 12px;
  border-radius: 999px;
}