:root {
  --bg:#100c08; --bg2:#1a140d; --card:#221a11;
  --primary:#ff7b00; --primary2:#ffb700; --accent:#ffe8d6;
  --text:#f7efe6; --muted:#c2a98f; --border:#3d2f1e;
  --grad:linear-gradient(135deg,#ff7b00 0%,#ffb700 60%,#ffe8d6 100%); --btn-grad:linear-gradient(135deg,#ff7b00,#ffb700);
  --radius:8px; --font:'Rubik',sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { background:var(--bg); color:var(--text); font-family:var(--font); line-height:1.75; overflow-x:hidden; }
img { max-width:100%; height:auto; display:block; }
a { color:var(--primary2); text-decoration:none; }
a:hover { color:var(--accent); }
.wrap { max-width:1200px; margin:0 auto; padding:0 20px; }

/* ===== 顶栏 ===== */
.topbar { background:var(--bg2); border-bottom:1px solid var(--border); font-size:13px; color:var(--muted); }
.topbar .wrap { display:flex; justify-content:space-between; align-items:center; padding-top:6px; padding-bottom:6px; flex-wrap:wrap; gap:6px; }
.topbar .clock { color:var(--accent); font-weight:600; }

/* ===== 导航 ===== */
header.nav { position:sticky; top:0; z-index:900; background:color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter:blur(12px); border-bottom:1px solid var(--border); }
header.nav .wrap { display:flex; align-items:center; justify-content:space-between; gap:16px; padding-top:12px; padding-bottom:12px; }
.logo { display:flex; align-items:center; gap:10px; font-size:24px; font-weight:800; color:var(--text); }
.logo img { width:40px; height:40px; }
.logo span { background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
nav.menu { display:flex; gap:4px; flex-wrap:wrap; }
nav.menu a { color:var(--text); font-size:14px; font-weight:600; padding:8px 12px; border-radius:8px; white-space:nowrap; }
nav.menu a:hover, nav.menu a.active { background:var(--card); color:var(--accent); }
.nav-cta { display:flex; gap:8px; }
.btn { display:inline-block; padding:10px 22px; border-radius:var(--radius); font-weight:700; font-size:14px; border:none; cursor:pointer; transition:transform .15s, box-shadow .15s; text-align:center; }
.btn:hover { transform:translateY(-2px); box-shadow:0 6px 20px color-mix(in srgb, var(--primary) 45%, transparent); }
.btn-primary { background:var(--btn-grad); color:#fff; }
.btn-ghost { background:transparent; color:var(--text); border:1px solid var(--border); }
.btn-ghost:hover { border-color:var(--primary); color:var(--accent); }
.btn-accent { background:var(--accent); color:#1a1a1a; }
.hamburger { display:none; background:none; border:1px solid var(--border); color:var(--text); font-size:20px; padding:6px 12px; border-radius:8px; cursor:pointer; }

/* ===== Hero 变体 ===== */
.hero { padding:64px 0 48px; position:relative; overflow:hidden; }
.hero::before { content:""; position:absolute; inset:0; background:radial-gradient(ellipse 60% 50% at 70% 20%, color-mix(in srgb, var(--primary) 22%, transparent), transparent); pointer-events:none; }
.hero h1 { font-size:clamp(28px,4.5vw,46px); line-height:1.25; margin-bottom:18px; font-weight:800; }
.hero h1 em { font-style:normal; background:var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.hero p.lead { font-size:17px; color:var(--muted); max-width:640px; margin-bottom:26px; }
.hero .hero-cta { display:flex; gap:12px; flex-wrap:wrap; margin-bottom:30px; }
.hero-points { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:12px; }
.hero-points .pt { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:14px 16px; font-size:14px; font-weight:600; display:flex; align-items:center; gap:10px; }
.hero-points .pt::before { content:"★"; color:var(--accent); }
.hero-split .wrap { display:grid; grid-template-columns:1.15fr .85fr; gap:40px; align-items:center; }
.hero-split .hero-img img { border-radius:var(--radius); border:1px solid var(--border); box-shadow:0 20px 60px rgba(0,0,0,.5); }
.hero-center { text-align:center; }
.hero-center p.lead { margin-left:auto; margin-right:auto; }
.hero-center .hero-cta { justify-content:center; }
.hero-banner { padding:0; }
.hero-banner .banner-img { position:relative; min-height:380px; display:flex; align-items:center; }
.hero-banner .banner-img img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.35; }
.hero-banner .banner-inner { position:relative; padding:64px 0; width:100%; }
.hero-magazine .wrap { display:grid; grid-template-columns:.9fr 1.1fr; gap:40px; align-items:center; }
.hero-magazine .hero-img img { border-radius:var(--radius); border:1px solid var(--border); box-shadow:12px 12px 0 var(--primary); }
.hero-overlay { position:relative; min-height:440px; display:flex; align-items:center; padding:0; }
.hero-overlay>img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.hero-overlay::after { content:""; position:absolute; inset:0; background:linear-gradient(90deg, color-mix(in srgb, var(--bg) 92%, transparent) 20%, color-mix(in srgb, var(--bg) 55%, transparent)); }
.hero-overlay .wrap { position:relative; z-index:2; padding-top:64px; padding-bottom:64px; }

/* ===== 区块标题 ===== */
section.block { padding:48px 0; }
.sec-head { margin-bottom:28px; }
.sec-head h2 { font-size:clamp(22px,3vw,30px); font-weight:800; }
.sec-head h2::after { content:""; display:block; width:64px; height:4px; background:var(--grad); border-radius:2px; margin-top:8px; }
.sec-head p { color:var(--muted); margin-top:8px; max-width:720px; }

/* ===== 卡片网格 ===== */
.grid { display:grid; gap:18px; }
.grid-3 { grid-template-columns:repeat(3,1fr); }
.grid-4 { grid-template-columns:repeat(4,1fr); }
.grid-2 { grid-template-columns:repeat(2,1fr); }
.card { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; transition:transform .2s, border-color .2s; display:flex; flex-direction:column; }
.card:hover { transform:translateY(-4px); border-color:var(--primary); }
.card .thumb { position:relative; aspect-ratio:16/9; overflow:hidden; }
.card .thumb img { width:100%; height:100%; object-fit:cover; transition:transform .3s; }
.card:hover .thumb img { transform:scale(1.06); }
.card .thumb .badge { position:absolute; top:10px; left:10px; background:var(--btn-grad); color:#fff; font-size:11px; font-weight:700; padding:4px 10px; border-radius:20px; }
.card .body { padding:16px 18px 18px; flex:1; display:flex; flex-direction:column; }
.card h3 { font-size:16px; font-weight:700; margin-bottom:6px; }
.card h3 a { color:var(--text); }
.card h3 a:hover { color:var(--accent); }
.card .meta { font-size:12px; color:var(--muted); margin-bottom:8px; }
.card p { font-size:13.5px; color:var(--muted); flex:1; }
.card .card-link { margin-top:12px; font-size:13px; font-weight:700; color:var(--primary2); }
.rtp-pill { display:inline-block; background:color-mix(in srgb, var(--primary) 18%, transparent); color:var(--accent); font-size:11px; font-weight:700; padding:2px 10px; border-radius:20px; margin-top:6px; }

/* ===== 文章正文 ===== */
.article { max-width:860px; margin:0 auto; }
.article h1 { font-size:clamp(26px,3.6vw,38px); line-height:1.3; margin-bottom:14px; font-weight:800; }
.article .post-meta { color:var(--muted); font-size:13.5px; margin-bottom:24px; display:flex; gap:16px; flex-wrap:wrap; }
.article .featured { border-radius:var(--radius); margin-bottom:28px; border:1px solid var(--border); }
.prose h2 { font-size:24px; margin:36px 0 14px; font-weight:800; color:var(--text); }
.prose h3 { font-size:19px; margin:26px 0 10px; font-weight:700; color:var(--primary2); }
.prose p { margin-bottom:16px; color:color-mix(in srgb, var(--text) 88%, var(--muted)); }
.prose ul, .prose ol { margin:0 0 16px 22px; color:color-mix(in srgb, var(--text) 88%, var(--muted)); }
.prose li { margin-bottom:8px; }
.prose strong { color:var(--text); }
.prose blockquote { border-left:4px solid var(--primary); background:var(--card); padding:14px 20px; border-radius:0 var(--radius) var(--radius) 0; margin:20px 0; color:var(--muted); font-style:italic; }
.table-wrap { width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch; margin:20px 0; border-radius:var(--radius); }
.prose table { width:100%; border-collapse:collapse; margin:0; font-size:14px; min-width:520px; }
.prose th, .prose td { border:1px solid var(--border); padding:10px 14px; text-align:left; }
@media (max-width: 720px) {
  .prose th, .prose td { white-space:normal; min-width:110px; }
}
.prose th { background:var(--card); color:var(--accent); font-weight:700; }
.prose td { color:color-mix(in srgb, var(--text) 85%, var(--muted)); }

/* ===== 面包屑 ===== */
.breadcrumb { font-size:13px; color:var(--muted); padding:14px 0 0; }
.breadcrumb a { color:var(--muted); }
.breadcrumb a:hover { color:var(--accent); }
.breadcrumb .sep { margin:0 8px; opacity:.5; }
.breadcrumb .cur { color:var(--text); }

/* ===== 排行榜 ===== */
.leaderboard { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; }
.leaderboard .lb-head { background:var(--btn-grad); color:#fff; padding:14px 20px; font-weight:800; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:6px; }
.leaderboard .lb-head .lb-date { font-size:12px; font-weight:600; opacity:.9; }
.leaderboard table { width:100%; border-collapse:collapse; font-size:14px; }
.leaderboard td, .leaderboard th { padding:10px 16px; text-align:left; border-bottom:1px solid var(--border); }
.leaderboard th { color:var(--muted); font-size:12px; text-transform:uppercase; letter-spacing:.5px; }
.leaderboard .rank { font-weight:800; color:var(--accent); width:50px; }
.leaderboard .prize { text-align:right; font-weight:700; color:var(--primary2); white-space:nowrap; }
.lb-note { font-size:12px; color:var(--muted); padding:10px 16px; }

/* ===== 标签云 ===== */
.tagcloud { display:flex; flex-wrap:wrap; gap:10px; }
.tagcloud a { background:var(--card); border:1px solid var(--border); color:var(--muted); font-size:13px; padding:6px 14px; border-radius:30px; transition:all .15s; }
.tagcloud a:hover { background:var(--btn-grad); color:#fff; border-color:transparent; }

/* ===== 搜索 ===== */
.searchbar { display:flex; gap:0; max-width:560px; }
.searchbar input { flex:1; background:var(--card); border:1px solid var(--border); border-right:none; color:var(--text); padding:12px 16px; border-radius:var(--radius) 0 0 var(--radius); font-size:14px; outline:none; min-width:0; }
.searchbar input:focus { border-color:var(--primary); }
.searchbar button { background:var(--btn-grad); color:#fff; border:none; padding:12px 22px; border-radius:0 var(--radius) var(--radius) 0; font-weight:700; cursor:pointer; font-size:14px; }
#search-results { margin-top:24px; }
#search-results .sr-item { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:16px 20px; margin-bottom:12px; }
#search-results .sr-item h3 { font-size:16px; margin-bottom:4px; }
#search-results .sr-item p { font-size:13px; color:var(--muted); }
#search-results .sr-item .sr-type { font-size:11px; color:var(--accent); font-weight:700; text-transform:uppercase; }

/* ===== 表单 ===== */
.form-card { max-width:480px; margin:0 auto; background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:32px; }
.form-card h1 { font-size:24px; margin-bottom:6px; }
.form-card .sub { color:var(--muted); font-size:14px; margin-bottom:24px; }
.form-group { margin-bottom:16px; }
.form-group label { display:block; font-size:13px; font-weight:600; margin-bottom:6px; color:var(--muted); }
.form-group input, .form-group select, .form-group textarea { width:100%; background:var(--bg); border:1px solid var(--border); color:var(--text); padding:12px 14px; border-radius:10px; font-size:14px; outline:none; font-family:var(--font); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color:var(--primary); }
.form-note { font-size:12.5px; color:var(--muted); margin-top:14px; }
.form-alt { text-align:center; margin-top:18px; font-size:13.5px; color:var(--muted); }

/* ===== FAQ 手风琴 ===== */
.faq-item { background:var(--card); border:1px solid var(--border); border-radius:var(--radius); margin-bottom:10px; overflow:hidden; }
.faq-item summary { padding:16px 20px; font-weight:700; cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:12px; }
.faq-item summary::after { content:"+"; color:var(--accent); font-size:20px; font-weight:800; flex-shrink:0; }
.faq-item[open] summary::after { content:"−"; }
.faq-item .faq-a { padding:0 20px 16px; color:var(--muted); font-size:14.5px; }

/* ===== 页脚 ===== */
footer.site { background:var(--bg2); border-top:1px solid var(--border); margin-top:60px; padding:48px 0 120px; }
footer.site .cols { display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:32px; }
footer.site h4 { font-size:15px; margin-bottom:14px; color:var(--text); }
footer.site ul { list-style:none; }
footer.site ul li { margin-bottom:8px; }
footer.site ul a { color:var(--muted); font-size:13.5px; }
footer.site ul a:hover { color:var(--accent); }
footer.site .about { color:var(--muted); font-size:13.5px; }
footer.site .badges { display:flex; gap:10px; margin-top:16px; flex-wrap:wrap; }
.badge-18 { width:44px; height:44px; border:2px solid #e63946; border-radius:50%; display:flex; align-items:center; justify-content:center; font-weight:800; color:#e63946; font-size:14px; }
.badge-rg { border:1px solid var(--border); border-radius:8px; padding:8px 12px; font-size:11px; color:var(--muted); font-weight:700; }
footer.site .legal { border-top:1px solid var(--border); padding-top:20px; font-size:12.5px; color:var(--muted); }
footer.site .legal p { margin-bottom:8px; }

/* ===== 底部悬浮注册/登录（金币特效） ===== */
.float-cta { position:fixed; left:0; right:0; bottom:0; z-index:950; padding:12px 16px calc(12px + env(safe-area-inset-bottom)); display:flex; gap:12px; justify-content:center; background:linear-gradient(to top, color-mix(in srgb, var(--bg) 96%, transparent) 65%, transparent); pointer-events:none; }
.float-cta a { pointer-events:auto; position:relative; overflow:hidden; flex:1; max-width:280px; text-align:center; padding:14px 10px; border-radius:var(--radius); font-weight:800; font-size:16px; letter-spacing:.5px; transition:transform .15s; }
.float-cta a:hover { transform:translateY(-3px) scale(1.02); }
.float-cta .f-login { background:var(--card); color:var(--text); border:2px solid var(--primary); box-shadow:0 4px 18px color-mix(in srgb, var(--primary) 35%, transparent); }
.float-cta .f-register { background:var(--btn-grad); color:#fff; box-shadow:0 4px 24px color-mix(in srgb, var(--primary) 55%, transparent); animation:pulse-glow 2.2s infinite; }
@keyframes pulse-glow { 0%,100% { box-shadow:0 4px 24px color-mix(in srgb, var(--primary) 55%, transparent); } 50% { box-shadow:0 4px 34px color-mix(in srgb, var(--accent) 75%, transparent); } }
.float-cta a .coin { position:absolute; top:-12px; width:18px; height:18px; border-radius:50%; background:radial-gradient(circle at 35% 35%, #fff6c9, #ffd700 55%, #b8860b); box-shadow:0 0 6px #ffd700; opacity:0; animation:coin-fall 3s linear infinite; pointer-events:none; }
.float-cta a .coin::after { content:"$"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:10px; font-weight:900; color:#8b6508; }
.float-cta a .coin:nth-child(1) { left:12%; animation-delay:0s; }
.float-cta a .coin:nth-child(2) { left:38%; animation-delay:1s; animation-duration:3.4s; }
.float-cta a .coin:nth-child(3) { left:62%; animation-delay:.5s; animation-duration:2.7s; }
.float-cta a .coin:nth-child(4) { left:84%; animation-delay:1.6s; animation-duration:3.8s; }
@keyframes coin-fall { 0% { top:-14px; opacity:0; } 12% { opacity:1; } 85% { opacity:1; } 100% { top:110%; opacity:0; } }
.float-cta a .shine { position:absolute; top:0; left:-80%; width:50%; height:100%; background:linear-gradient(100deg, transparent, rgba(255,255,255,.35), transparent); animation:shine 3.2s infinite; pointer-events:none; }
@keyframes shine { 0% { left:-80%; } 55% { left:130%; } 100% { left:130%; } }

/* ===== 跑马灯 ===== */
.marquee { background:var(--bg2); border-top:1px solid var(--border); border-bottom:1px solid var(--border); overflow:hidden; padding:8px 0; max-width:100vw; }
.marquee .mq-inner { display:inline-block; white-space:nowrap; animation:mq 30s linear infinite; font-size:13px; color:var(--muted); }
.marquee .mq-inner b { color:var(--accent); }
@keyframes mq { 0% { transform:translateX(0); } 100% { transform:translateX(-50%); } }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns:repeat(2,1fr); }
  .grid-3 { grid-template-columns:repeat(2,1fr); }
  .hero-split .wrap, .hero-magazine .wrap { grid-template-columns:1fr; }
  .hero-split .hero-img, .hero-magazine .hero-img { order:-1; }
  footer.site .cols { grid-template-columns:1fr 1fr; }
  nav.menu { display:none; position:absolute; top:100%; left:0; right:0; background:var(--bg2); flex-direction:column; padding:12px 20px 20px; border-bottom:1px solid var(--border); }
  nav.menu.open { display:flex; }
  .hamburger { display:block; }
  .nav-cta .btn { padding:8px 14px; font-size:13px; }
  header.nav .wrap { flex-wrap:wrap; }
  .logo { font-size:19px; }
  .logo img { width:32px; height:32px; }
  .nav-cta { margin-left:auto; }
  .nav-cta .btn { padding:7px 11px; font-size:12px; }
}
@media (max-width: 560px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns:1fr; }
  .form-card { padding:24px 20px; }
  footer.site .cols { grid-template-columns:1fr; }
  .float-cta a { font-size:15px; padding:13px 8px; }
  .topbar .wrap { justify-content:center; text-align:center; }
  .leaderboard table { font-size:12.5px; }
  .leaderboard td, .leaderboard th { padding:8px 8px; }
  .leaderboard .prize { white-space:normal; }
  .marquee .mq-inner { animation-duration:45s; }
}