/* roulang page: index */
:root{
  --primary:#2563eb;
  --primary-dark:#1e40af;
  --primary-light:#dbeafe;
  --accent:#f97316;
  --accent-light:#ffedd5;
  --bg:#f8fafc;
  --text:#0f172a;
  --text-light:#64748b;
  --border:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.06);
  --shadow-lg:0 20px 40px rgba(0,0,0,.1);
  --transition:.25s ease;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.6}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
.container{width:min(1200px,92%);margin:0 auto}
section{padding:80px 0}
.section-label{display:inline-block;background:var(--primary-light);color:var(--primary);font-size:.85rem;font-weight:600;padding:6px 16px;border-radius:20px;letter-spacing:.5px;margin-bottom:12px}
.section-title{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;line-height:1.2;margin-bottom:16px;letter-spacing:-.5px}
.section-subtitle{font-size:1.1rem;color:var(--text-light);max-width:720px;margin-bottom:40px}
.section-head{text-align:center;margin-bottom:50px}
/* header */
.topbar{background:#0f172a;color:#94a3b8;font-size:.85rem;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.topbar span i{margin-right:4px}
.topbar .top-right{display:flex;gap:20px;align-items:center}
.topbar a{color:#e2e8f0}
.topbar a:hover{color:var(--accent)}
.nav-wrapper{background:#fff;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.main-nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;flex-wrap:wrap;gap:12px}
.nav-brand{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:800;color:var(--text)}
.nav-brand .logo-badge{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.2rem;font-weight:900}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none}
.nav-links a{padding:8px 18px;border-radius:var(--radius-sm);font-weight:500;color:var(--text)}
.nav-links a:hover{background:var(--primary-light);color:var(--primary)}
.nav-links a.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(37,99,235,.3)}
.nav-cta{display:flex;align-items:center;gap:12px}
.search-box{position:relative}
.search-box input{padding:8px 14px 8px 36px;border:1px solid var(--border);border-radius:30px;font-size:.9rem;width:200px;transition:var(--transition)}
.search-box input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.search-box i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-light)}
.btn{display:inline-block;padding:10px 24px;border-radius:30px;font-weight:600;font-size:.95rem;border:none;cursor:pointer;transition:var(--transition);text-align:center}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 20px rgba(37,99,235,.3)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#ea580c;transform:translateY(-2px);box-shadow:0 8px 20px rgba(249,115,22,.3)}
/* hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;padding:100px 0;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.85),rgba(30,64,175,.7))}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.hero-content h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:900;line-height:1.1;margin-bottom:20px}
.hero-content p{font-size:1.15rem;color:#cbd5e1;margin-bottom:30px;max-width:500px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.2);border-radius:30px;padding:6px 16px;font-size:.85rem;margin-bottom:20px;backdrop-filter:blur(4px)}
.hero-badge i{color:var(--accent)}
.hero-visual{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(12px);border-radius:24px;padding:30px;box-shadow:0 20px 40px rgba(0,0,0,.2)}
.hero-card-title{font-size:1.2rem;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.hero-list{list-style:none;display:grid;gap:12px}
.hero-list li{background:rgba(255,255,255,.12);border-radius:12px;padding:12px 16px;display:flex;align-items:center;gap:10px;font-size:.95rem}
.hero-list i{color:var(--accent)}
/* features */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.feature-card{background:#fff;border-radius:var(--radius);padding:30px;border:1px solid var(--border);transition:var(--transition)}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.feature-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;margin-bottom:20px}
.feature-card h3{font-size:1.3rem;font-weight:700;margin-bottom:10px}
.feature-card p{color:var(--text-light);font-size:.95rem}
/* category */
.category-section{background:#fff}
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px}
.category-card{background:#f8fafc;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:var(--transition)}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.category-card img{height:240px;object-fit:cover}
.category-card-body{padding:24px}
.category-card-body .tag{background:var(--primary-light);color:var(--primary);padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600}
.category-card-body h3{font-size:1.5rem;margin-top:12px}
.category-card-body p{color:var(--text-light);margin-top:8px}
/* latest posts */
.post-list{display:grid;gap:20px;}
.post-item{background:#fff;border-radius:var(--radius);padding:24px;border:1px solid var(--border);transition:var(--transition);display:flex;align-items:center;gap:20px}
.post-item:hover{box-shadow:var(--shadow);border-color:var(--primary-light);transform:translateX(4px)}
.post-item .post-thumb{width:120px;height:90px;border-radius:10px;object-fit:cover;flex-shrink:0}
.post-item .post-info{flex:1}
.post-item .post-meta{display:flex;gap:12px;font-size:.85rem;color:var(--text-light);margin-bottom:6px}
.post-item .post-cat{background:var(--accent-light);color:var(--accent);padding:2px 10px;border-radius:20px;font-weight:600}
.post-item h3{font-size:1.15rem;font-weight:700}
.post-item h3 a{color:var(--text)}
.post-item h3 a:hover{color:var(--primary)}
.post-item p{color:var(--text-light);font-size:.9rem;margin-top:4px}
.empty-state{background:#fff;border:2px dashed var(--border);border-radius:var(--radius);padding:60px;text-align:center;color:var(--text-light)}
/* stats */
.stats-section{background:var(--primary);color:#fff;text-align:center}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-item .num{font-size:3rem;font-weight:900;line-height:1}
.stat-item .label{font-size:.9rem;opacity:.9;margin-top:8px}
/* steps */
.steps-section{background:#fff}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;counter-reset:step}
.step-item{position:relative;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:30px 20px 20px;text-align:center;transition:var(--transition)}
.step-item:hover{box-shadow:var(--shadow-lg);border-color:var(--primary)}
.step-item::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-size:2.5rem;font-weight:900;color:var(--primary-light);display:block;margin-bottom:8px}
.step-item h3{font-size:1.2rem;margin-bottom:10px}
.step-item p{color:var(--text-light);font-size:.9rem}
/* faq */
.faq-wrapper{max-width:800px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;overflow:hidden}
.faq-item summary{padding:18px 24px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.4rem;color:var(--primary);font-weight:700}
.faq-item[open] summary::after{content:'−'}
.faq-item[open] summary{background:var(--primary-light);border-bottom:1px solid var(--border)}
.faq-item p{padding:18px 24px;color:var(--text-light);line-height:1.7}
/* cta */
.cta-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;text-align:center;padding:100px 0}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(15,23,42,.75)}
.cta-section .container{position:relative;z-index:1;color:#fff}
.cta-section h2{font-size:clamp(1.8rem,4vw,2.5rem);font-weight:800;margin-bottom:20px}
.cta-section p{font-size:1.1rem;color:#cbd5e1;margin-bottom:30px}
/* footer */
.site-footer{background:#0f172a;color:#94a3b8;padding:60px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand h3{font-size:1.5rem;color:#fff;margin-bottom:12px}
.footer-brand p{max-width:300px;font-size:.9rem}
.footer-links h4{color:#fff;font-size:1rem;margin-bottom:16px}
.footer-links ul{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#94a3b8;font-size:.9rem}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;font-size:.85rem}
/* responsive */
@media(max-width:1024px){
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero-content p{margin:0 auto 30px}
  .hero-btns{justify-content:center}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:1fr;max-width:500px;margin:0 auto}
}
@media(max-width:768px){
  .nav-wrapper .main-nav{flex-direction:column;align-items:stretch}
  .nav-links{justify-content:center}
  .nav-cta{justify-content:center;flex-wrap:wrap}
  .search-box input{width:100%}
  .category-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .stat-item .num{font-size:2rem}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .post-item{flex-direction:column;align-items:flex-start}
  .post-item .post-thumb{width:100%;height:180px}
}
@media(max-width:520px){
  section{padding:50px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .hero-btns a{width:100%;text-align:center}
  .topbar .container{justify-content:center;text-align:center}
  .top-right{display:none}
}

/* roulang page: category1 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --accent: #0ea5e9;
  --accent-light: #e0f2fe;
  --bg: #ffffff;
  --bg-soft: #f5f8fc;
  --bg-deep: #0f172a;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 14px 40px rgba(37, 99, 235, 0.12);
  --space-section: 88px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input { font-family: inherit; }
.container { width: min(1180px, 92%); margin: 0 auto; }

/* ========== Header & Nav ========== */
.site-header { position: sticky; top: 0; z-index: 100; box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06); background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(12px); }
.topbar { background: var(--bg-deep); color: #cbd5e1; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; min-height: 36px; gap: 16px; }
.topbar span:first-child { color: #fff; font-weight: 500; }
.main-nav { border-bottom: 1px solid var(--border); background: #fff; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 24px; }
.brand { font-size: 22px; font-weight: 800; color: var(--primary); letter-spacing: -0.3px; white-space: nowrap; }
.brand:hover { color: var(--primary-dark); }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a { padding: 10px 18px; border-radius: 999px; font-size: 15px; font-weight: 500; color: var(--text-weak); transition: all 0.25s ease; }
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }
.nav-links a.active { color: #fff; background: var(--primary); font-weight: 600; }
.nav-cta { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; padding: 10px 22px; border-radius: 999px; font-size: 14px; font-weight: 600; box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25); transition: all 0.25s ease; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(37, 99, 235, 0.35); }
.nav-cta:focus-visible { outline: 3px solid var(--accent-light); outline-offset: 2px; }

/* ========== Page Hero ========== */
.page-hero { position: relative; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 90px 0 80px; color: #fff; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15, 23, 42, 0.88), rgba(37, 99, 235, 0.72)); }
.page-hero .container { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.25); border-radius: 999px; padding: 6px 16px; font-size: 13px; font-weight: 500; margin-bottom: 20px; backdrop-filter: blur(4px); }
.hero-badge i { color: #7dd3fc; }
.page-hero h1 { font-size: clamp(30px, 4.6vw, 46px); line-height: 1.25; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 16px; }
.page-hero h1 span { background: linear-gradient(90deg, #7dd3fc, #fbbf24); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.page-hero p { font-size: 17px; color: rgba(255, 255, 255, 0.85); max-width: 640px; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--text) !important; padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 600; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18); transition: all 0.25s ease; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0, 0, 0, 0.24); }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.32); color: #fff !important; padding: 13px 26px; border-radius: 999px; font-size: 15px; font-weight: 500; backdrop-filter: blur(4px); transition: all 0.25s ease; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.24); transform: translateY(-2px); }

/* ========== Section Base ========== */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-soft); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-tag { display: inline-block; background: var(--primary-light); color: var(--primary-dark); font-size: 13px; font-weight: 600; padding: 5px 16px; border-radius: 999px; margin-bottom: 14px; letter-spacing: 1px; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 800; letter-spacing: -0.4px; line-height: 1.3; margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: 16px; }

/* ========== Entry Cards ========== */
.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.entry-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: all 0.3s ease; display: flex; flex-direction: column; }
.entry-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: #bfdbfe; }
.entry-media { height: 190px; overflow: hidden; position: relative; }
.entry-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.entry-card:hover .entry-media img { transform: scale(1.06); }
.entry-media .entry-tag { position: absolute; top: 14px; left: 14px; background: rgba(255, 255, 255, 0.92); color: var(--primary-dark); font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 999px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.entry-body { padding: 26px; flex: 1; display: flex; flex-direction: column; }
.entry-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.entry-body p { color: var(--text-weak); font-size: 14.5px; margin-bottom: 18px; flex: 1; }
.entry-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 14px; }
.entry-link:hover { gap: 10px; color: var(--primary-dark); }

/* ========== Flow Steps ========== */
.flow-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 22px; text-align: center; position: relative; transition: all 0.3s ease; }
.step-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); border-color: #bfdbfe; }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #fff; border-radius: 14px; font-size: 18px; font-weight: 800; margin-bottom: 16px; }
.step-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 13.5px; color: var(--text-weak); }

/* ========== Hot Rank List ========== */
.rank-wrap { max-width: 880px; margin: 0 auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.rank-list { padding: 0; }
.rank-list li { display: flex; align-items: center; gap: 18px; padding: 18px 28px; border-bottom: 1px solid #f1f5f9; transition: background 0.2s ease; }
.rank-list li:last-child { border-bottom: none; }
.rank-list li:hover { background: #f8fafc; }
.rank-badge { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 10px; background: var(--bg-soft); color: var(--text-weak); font-weight: 700; font-size: 14px; flex-shrink: 0; }
.rank-list li:nth-child(1) .rank-badge { background: #fef3c7; color: #b45309; }
.rank-list li:nth-child(2) .rank-badge { background: #e0f2fe; color: #0369a1; }
.rank-list li:nth-child(3) .rank-badge { background: #dcfce7; color: #15803d; }
.rank-content { flex: 1; }
.rank-content h4 { font-size: 15.5px; font-weight: 600; margin-bottom: 2px; }
.rank-content p { font-size: 13.5px; color: var(--text-weak); }
.rank-meta { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-soft); color: var(--text-weak); font-size: 12px; padding: 4px 12px; border-radius: 999px; white-space: nowrap; }
.rank-meta i { color: var(--accent); }

/* ========== Tag Timeline / Notice ========== */
.tags-group { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.tag-item { display: inline-flex; align-items: center; gap: 6px; background: #fff; border: 1px solid var(--border); border-radius: 999px; padding: 8px 18px; font-size: 14px; font-weight: 500; color: var(--text); transition: all 0.2s ease; }
.tag-item:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.notice-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.notice-card { display: flex; gap: 16px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 22px; transition: all 0.25s ease; }
.notice-card:hover { border-color: #bfdbfe; box-shadow: var(--shadow-hover); }
.notice-icon { flex-shrink: 0; width: 44px; height: 44px; background: var(--primary-light); color: var(--primary); border-radius: 12px; display: inline-flex; align-items: center; justify-content: center; font-size: 18px; }
.notice-card h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 4px; }
.notice-card p { font-size: 13.5px; color: var(--text-weak); }

/* ========== FAQ ========== */
.faq-wrap { max-width: 850px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: border-color 0.25s ease; }
.faq-item:hover { border-color: #bfdbfe; }
.faq-item details { padding: 0; }
.faq-item summary { padding: 20px 26px; font-size: 16px; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; transition: color 0.2s ease; }
.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: 14px; color: var(--primary); transition: transform 0.3s ease; }
.faq-item details[open] summary { color: var(--primary); }
.faq-item details[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 26px 22px; color: var(--text-weak); font-size: 15px; }
.faq-item .faq-body a { color: var(--primary); font-weight: 500; }

/* ========== CTA ========== */
.cta-section { background: url('/assets/images/backpic/back-2.png') center/cover fixed no-repeat; position: relative; padding: 80px 0; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: rgba(15, 23, 42, 0.82); }
.cta-content { position: relative; z-index: 2; text-align: center; color: #fff; max-width: 640px; margin: 0 auto; }
.cta-content h2 { font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; margin-bottom: 14px; letter-spacing: -0.4px; }
.cta-content p { color: rgba(255, 255, 255, 0.82); font-size: 16px; margin-bottom: 30px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ========== Footer ========== */
.site-footer { background: var(--bg-deep); color: #94a3b8; padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer-brand h3 { color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-links h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 14px; }
.footer-links ul li { margin-bottom: 9px; }
.footer-links ul a { font-size: 14px; color: #94a3b8; transition: color 0.2s ease; }
.footer-links ul a:hover { color: #7dd3fc; }
.footer-bottom { border-top: 1px solid rgba(148, 163, 184, 0.16); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #64748b; }

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  :root { --space-section: 70px; }
  .entry-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-wrap { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .topbar-inner { justify-content: center; font-size: 12px; flex-direction: column; gap: 2px; }
  .nav-inner { flex-wrap: wrap; min-height: auto; padding: 12px 0; gap: 10px; }
  .brand { width: 100%; text-align: center; }
  .nav-links { order: 3; width: 100%; justify-content: center; }
  .nav-cta { margin-left: auto; }
  .page-hero { padding: 60px 0; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .entry-grid { grid-template-columns: 1fr; }
  .notice-grid { grid-template-columns: 1fr; }
  .flow-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .nav-links { flex-wrap: wrap; }
  .nav-links a { padding: 8px 14px; font-size: 14px; }
  .nav-cta { width: 100%; justify-content: center; }
  .page-hero h1 { font-size: 28px; }
  .entry-media { height: 160px; }
  .rank-list li { flex-wrap: wrap; gap: 12px; }
  .rank-meta { margin-left: 52px; }
  .cta-actions .btn-primary, .cta-actions .btn-ghost { width: 100%; justify-content: center; }
}

/* roulang page: article */
:root {
    --primary: #1e3a5f;
    --primary-dark: #142c4a;
    --primary-light: #2b5a8a;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --accent-light: #fbbf24;
    --bg: #f8fafc;
    --white: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --text-muted: #94a3b8;
    --border: #e2e8f0;
    --radius: 14px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --shadow: 0 4px 24px rgba(30, 58, 95, 0.07);
    --shadow-lg: 0 16px 48px rgba(30, 58, 95, 0.13);
    --transition: 0.32s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
    transition: all var(--transition);
    border: 2px solid transparent;
    white-space: nowrap;
}
.btn-sm { padding: 9px 22px; font-size: 14px; }
.btn-primary { background: var(--accent); color: #1e293b; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(217, 119, 6, 0.28); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.7); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--white); transform: translateY(-2px); }
.btn-dark { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-dark:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30, 58, 95, 0.24); }
.btn:focus-visible, .nav-link:focus-visible, a:focus-visible, .nav-toggle:focus-visible {
    outline: 3px solid rgba(245, 158, 11, 0.45);
    outline-offset: 3px;
}
/* ===== 顶部信息条 ===== */
.topbar {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.85);
    font-size: 13px;
    padding: 7px 0;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.topbar-domain { font-weight: 600; letter-spacing: 0.3px; }
.topbar-tip { color: rgba(255,255,255,0.65); text-align: center; flex: 1; }
.topbar-link { color: var(--accent-light); font-weight: 500; }
.topbar-link:hover { color: var(--accent); }
/* ===== 主导航 ===== */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 16px rgba(30, 58, 95, 0.05);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; height: 72px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--white); font-weight: 800; font-size: 20px;
    box-shadow: 0 4px 14px rgba(30, 58, 95, 0.22);
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--primary); letter-spacing: 0.5px; }
.main-nav { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-link {
    padding: 10px 18px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    transition: all var(--transition);
}
.nav-link:hover { color: var(--primary); background: rgba(30, 58, 95, 0.06); }
.nav-link.active { color: var(--primary); font-weight: 600; background: rgba(30, 58, 95, 0.08); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 40px; height: 40px; border-radius: 10px; background: var(--bg); align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--primary); border-radius: 2px; transition: all var(--transition); }
.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); }
/* ===== 文章 Hero ===== */
.article-hero {
    position: relative;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 88px 0 72px;
    color: var(--white);
}
.article-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(20, 44, 74, 0.93), rgba(30, 58, 95, 0.78));
    z-index: 1;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; font-size: 14px; color: rgba(255,255,255,0.72); margin-bottom: 22px; }
.breadcrumb a { color: var(--accent-light); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: rgba(255,255,255,0.5); }
.article-hero h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    max-width: 820px;
    margin: 18px 0 16px;
    letter-spacing: -0.5px;
}
.article-hero .badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.92);
    color: #1e293b;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 8px;
}
.article-meta { display: flex; align-items: center; gap: 20px; font-size: 14px; color: rgba(255,255,255,0.78); flex-wrap: wrap; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-hero .not-found-hint { max-width: 640px; font-size: 17px; color: rgba(255,255,255,0.75); line-height: 1.7; }
/* ===== 文章正文区 ===== */
.article-section { padding: 64px 0 72px; }
.article-layout { display: grid; grid-template-columns: 1fr 360px; gap: 48px; align-items: start; }
.article-main { min-width: 0; }
.article-body {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 48px;
}
.article-content { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-content h2 { font-size: 26px; font-weight: 700; color: var(--primary); margin: 40px 0 16px; padding-bottom: 12px; border-bottom: 2px solid rgba(30, 58, 95, 0.08); }
.article-content h3 { font-size: 20px; font-weight: 700; color: var(--primary); margin: 28px 0 12px; }
.article-content p { margin-bottom: 18px; }
.article-content ul, .article-content ol { margin: 0 0 20px 22px; }
.article-content ul li { list-style: disc; margin-bottom: 8px; }
.article-content ol li { list-style: decimal; margin-bottom: 8px; }
.article-content a { color: var(--primary-light); text-decoration: underline; }
.article-content a:hover { color: var(--accent-dark); }
.article-content blockquote { border-left: 4px solid var(--accent); background: rgba(245, 158, 11, 0.08); padding: 16px 22px; border-radius: 0 10px 10px 0; margin: 22px 0; color: var(--text-light); }
.article-content img { border-radius: var(--radius); margin: 24px 0; }
.article-content code { background: rgba(30, 58, 95, 0.06); padding: 2px 8px; border-radius: 6px; font-size: 14px; }
.not-found-box {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 72px 48px;
    text-align: center;
}
.not-found-box .icon-circle {
    width: 88px; height: 88px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.12);
    display: flex; align-items: center; justify-content: center;
    font-size: 38px;
    margin: 0 auto 24px;
}
.not-found-box h2 { font-size: 28px; color: var(--primary); margin-bottom: 14px; }
.not-found-box p { color: var(--text-light); margin-bottom: 28px; max-width: 420px; margin-left: auto; margin-right: auto; }
/* ===== 侧边栏 ===== */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; }
.sidebar-card {
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 28px;
}
.sidebar-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 18px; padding-bottom: 12px; border-bottom: 2px solid rgba(30, 58, 95, 0.06); }
.sidebar-login-img { border-radius: var(--radius-sm); margin-bottom: 18px; overflow: hidden; }
.sidebar-login-img img { width: 100%; height: 130px; object-fit: cover; }
.sidebar-login-btn { width: 100%; margin-top: 10px; }
.sidebar-tips li { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 14px; color: var(--text-light); align-items: flex-start; }
.sidebar-tips li:last-child { border-bottom: none; }
.sidebar-tips .tip-icon { color: var(--accent-dark); font-size: 15px; flex-shrink: 0; line-height: 1.6; }
.sidebar-help { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border: none; color: var(--white); }
.sidebar-help h3 { color: var(--white); border-bottom-color: rgba(255,255,255,0.15); }
.sidebar-help p { font-size: 14px; color: rgba(255,255,255,0.72); margin-bottom: 16px; }
.sidebar-help .btn { background: var(--accent); color: #1e293b; width: 100%; }
.sidebar-help .btn:hover { background: var(--accent-light); }
/* ===== 登录流程 ===== */
.process-section { padding: 72px 0; background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-header .section-tag { display: inline-block; background: rgba(245, 158, 11, 0.12); color: var(--accent-dark); font-size: 13px; font-weight: 600; padding: 6px 18px; border-radius: 50px; margin-bottom: 16px; }
.section-header h2 { font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }
.section-header p { color: var(--text-light); font-size: 16px; }
.process-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.process-card { background: var(--bg); border-radius: var(--radius); padding: 36px 28px; text-align: center; position: relative; transition: all var(--transition); border: 1px solid transparent; }
.process-card:hover { transform: translateY(-6px); border-color: rgba(245, 158, 11, 0.3); box-shadow: var(--shadow-lg); }
.process-num { font-size: 44px; font-weight: 800; color: rgba(30, 58, 95, 0.1); line-height: 1; display: block; margin-bottom: 14px; }
.process-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.process-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
/* ===== 注意事项 ===== */
.notice-section { padding: 72px 0; }
.notice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.notice-card { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 34px 28px; transition: all var(--transition); }
.notice-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.notice-card .notice-icon { font-size: 32px; margin-bottom: 16px; display: block; }
.notice-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.notice-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
/* ===== CTA ===== */
.cta-section { padding: 80px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -80px; right: -60px; width: 280px; height: 280px; border-radius: 50%; background: rgba(245, 158, 11, 0.15); }
.cta-inner { text-align: center; position: relative; z-index: 2; }
.cta-inner h2 { font-size: 34px; font-weight: 800; color: var(--white); margin-bottom: 14px; }
.cta-inner p { font-size: 17px; color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 32px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
/* ===== FAQ ===== */
.faq-section { padding: 72px 0; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 26px 30px; margin-bottom: 16px; transition: all var(--transition); }
.faq-item:hover { border-color: rgba(245, 158, 11, 0.25); box-shadow: var(--shadow-lg); }
.faq-item h3 { font-size: 17px; font-weight: 600; color: var(--primary); margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.faq-item h3::before { content: 'Q'; display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 8px; background: rgba(245, 158, 11, 0.14); color: var(--accent-dark); font-weight: 700; font-size: 13px; flex-shrink: 0; }
.faq-item p { color: var(--text-light); font-size: 15px; line-height: 1.8; padding-left: 38px; }
/* ===== 页脚 ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand h3 { font-size: 22px; font-weight: 800; color: var(--white); margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-links h4 { font-size: 16px; font-weight: 600; color: var(--white); margin-bottom: 18px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,0.65); }
.footer-links a:hover { color: var(--accent-light); }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 24px 0; font-size: 13px; color: rgba(255,255,255,0.45); }
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    :root { --spacing-section: 60px; }
    .article-hero h1 { font-size: 34px; }
    .article-layout { grid-template-columns: 1fr 320px; gap: 32px; }
    .article-body { padding: 36px; }
    .process-grid { gap: 20px; }
    .process-card { padding: 26px 20px; }
}
@media (max-width: 768px) {
    .topbar-tip { display: none; }
    .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 24px 24px;
        gap: 6px;
        box-shadow: 0 16px 40px rgba(30, 58, 95, 0.14);
        border-bottom: 1px solid var(--border);
    }
    .main-nav.open { display: flex; }
    .nav-link { padding: 14px 18px; font-size: 16px; border-radius: 12px; text-align: center; }
    .nav-toggle { display: flex; }
    .header-actions .btn-sm { display: none; }
    .article-hero { padding: 60px 0 48px; }
    .article-hero h1 { font-size: 28px; }
    .article-layout { grid-template-columns: 1fr; gap: 32px; }
    .article-body { padding: 28px 22px; }
    .process-grid, .notice-grid { grid-template-columns: 1fr; }
    .process-grid { gap: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .section-header h2 { font-size: 26px; }
    .cta-inner h2 { font-size: 26px; }
    .faq-item { padding: 20px; }
    .faq-item p { padding-left: 0; margin-top: 8px; }
}
@media (max-width: 520px) {
    .container { padding: 0 18px; }
    .logo-text { font-size: 17px; }
    .logo-mark { width: 36px; height: 36px; font-size: 17px; }
    .header-inner { height: 64px; }
    .main-nav { top: 64px; }
    .article-hero h1 { font-size: 23px; }
    .article-hero { padding: 48px 0 38px; }
    .article-body { padding: 22px 16px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 21px; }
    .breadcrumb { font-size: 13px; }
    .not-found-box { padding: 48px 22px; }
    .process-card { padding: 22px 16px; }
    .notice-card { padding: 24px 20px; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-buttons .btn { width: 100%; max-width: 280px; }
}