:root{
  --cream:#fff7e8;
  --cream-2:#fffdf7;
  --ink:#17213a;
  --blue:#203a67;
  --blue-2:#2b4f86;
  --orange:#ff8a3d;
  --orange-2:#ffb15f;
  --purple:#a98be7;
  --purple-2:#efe7ff;
  --muted:#68718a;
  --line:rgba(23,33,58,.12);
  --card:#ffffff;
  --shadow:0 18px 48px rgba(31,55,94,.14);
  --radius:24px;
  --radius-sm:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:linear-gradient(135deg,#fff7e8 0%,#fbf7ff 48%,#eff6ff 100%);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font:inherit}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;border-radius:0 0 12px 0;z-index:99}.skip-link:focus{left:0}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,247,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-shell{max-width:1180px;margin:auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;color:var(--blue);font-size:1.16rem}.brand img{filter:drop-shadow(0 8px 16px rgba(255,138,61,.24))}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:wrap}.nav-links a{padding:9px 12px;border-radius:999px;color:var(--blue);font-weight:700;font-size:.95rem}.nav-links a:hover,.nav-links a.active{background:var(--purple-2);color:#4c347e}.nav-toggle{display:none;border:0;background:var(--blue);color:#fff;border-radius:12px;padding:8px 12px}
main{max-width:1180px;margin:0 auto;padding:28px 20px 64px}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center;padding:40px 0 18px}.hero-card{background:rgba(255,255,255,.74);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:36px;padding:32px;position:relative;overflow:hidden}.hero-card:before{content:"";position:absolute;width:220px;height:220px;right:-70px;top:-70px;background:radial-gradient(circle,var(--orange-2),rgba(255,177,95,0) 70%);opacity:.8}.kicker{display:inline-flex;align-items:center;gap:8px;background:#fff3dc;border:1px solid rgba(255,138,61,.28);color:#a85014;font-weight:800;padding:6px 12px;border-radius:999px}.hero h1{font-size:clamp(2.1rem,5vw,4.5rem);line-height:1.08;margin:18px 0 16px;color:var(--blue);letter-spacing:-.04em}.lead{font-size:1.12rem;color:var(--muted);max-width:760px}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 18px;font-weight:900;border:1px solid transparent;cursor:pointer;transition:.2s}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 24px rgba(32,58,103,.24)}.btn-primary:hover{transform:translateY(-2px)}.btn-soft{background:#fff;color:var(--blue);border-color:var(--line)}.btn-soft:hover{background:var(--purple-2)}.hero-art{background:rgba(255,255,255,.64);border:1px solid var(--line);border-radius:36px;padding:18px;box-shadow:var(--shadow)}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 34px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:18px}.stat-card strong{display:block;color:var(--blue);font-size:1.45rem}.stat-card span{color:var(--muted);font-size:.92rem}.badge-note{font-size:.82rem;color:#7a6172;background:#fff0f7;border:1px dashed rgba(169,139,231,.5);border-radius:999px;padding:5px 10px;display:inline-block;margin-top:8px}
.section{margin-top:48px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:18px}.section h2{font-size:clamp(1.55rem,3vw,2.3rem);line-height:1.18;margin:0;color:var(--blue)}.section p.section-intro{margin:8px 0 0;color:var(--muted);max-width:760px}.pill-row{display:flex;gap:10px;flex-wrap:wrap}.pill{display:inline-flex;align-items:center;gap:7px;border-radius:999px;background:#fff;border:1px solid var(--line);padding:8px 12px;color:var(--blue);font-weight:800;font-size:.92rem}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 30px rgba(31,55,94,.08);padding:20px;position:relative;overflow:hidden}.card:hover{transform:translateY(-3px);transition:.2s;box-shadow:var(--shadow)}.card h3{margin:10px 0 8px;color:var(--blue);font-size:1.18rem}.card p{color:var(--muted);margin:0}.card-cover{border-radius:18px;overflow:hidden;background:var(--purple-2);margin-bottom:14px}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.tag{font-size:.8rem;font-weight:800;color:#5a3c88;background:var(--purple-2);border-radius:999px;padding:5px 9px}.tag.orange{color:#9f4a12;background:#fff0df}.tag.blue{color:#22477e;background:#eaf2ff}.card-actions{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px}.ghost-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--blue);font-weight:800;cursor:pointer}.ghost-btn.saved{background:#fff1df;border-color:rgba(255,138,61,.38);color:#ab4f10}.metric{color:var(--muted);font-size:.9rem}.topic-card{display:flex;align-items:flex-start;gap:14px}.topic-icon{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--orange),var(--purple));display:grid;place-items:center;color:#fff;font-weight:900;flex:0 0 auto}.stars{letter-spacing:2px;color:#ff9d2f;font-size:1.05rem}.score-line{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;background:#f8f5ff;border-radius:14px;padding:10px 12px}.comment{display:flex;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px}.avatar{width:52px;height:52px;border-radius:50%;background:#f2e9ff;flex:0 0 auto}.bubble{background:#f8fbff;border-radius:16px;padding:13px 14px;flex:1}.bubble h3{font-size:1rem;margin:0 0 4px;color:var(--blue)}.bubble p{margin:0;color:var(--muted)}.feed{display:grid;gap:14px}.feed-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px}.feed-item img{width:50px;height:50px;border-radius:50%}.feed-body strong{color:var(--blue)}.feed-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;margin-top:8px}.feature-band{background:linear-gradient(135deg,var(--blue),#4d3d85);border-radius:34px;color:#fff;padding:30px;display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:center;overflow:hidden}.feature-band h2,.feature-band p{color:#fff}.feature-band .btn{background:#fff;color:var(--blue)}.notice{background:#fff8e9;border:1px solid rgba(255,138,61,.28);border-radius:var(--radius);padding:18px;color:#785031}.notice strong{color:#9b4d16}.faq{display:grid;gap:12px}.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px}.faq summary{font-weight:900;color:var(--blue);cursor:pointer}.faq p{color:var(--muted)}.page-hero{padding:34px;background:rgba(255,255,255,.76);border:1px solid var(--line);border-radius:36px;box-shadow:var(--shadow);margin-top:28px}.page-hero h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.12;margin:12px 0;color:var(--blue)}.mini-nav{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.mini-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800;color:var(--blue)}.timeline{display:grid;gap:16px}.timeline-item{display:grid;grid-template-columns:90px 1fr;gap:16px;align-items:start}.timeline-dot{background:var(--blue);color:#fff;border-radius:999px;padding:8px 10px;text-align:center;font-weight:900}.rules-list{display:grid;gap:10px}.rule{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px}.rule span{width:28px;height:28px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-items:center;font-weight:900;flex:0 0 auto}.table-card{overflow:auto}.rank-table{width:100%;border-collapse:collapse;min-width:620px}.rank-table th,.rank-table td{border-bottom:1px solid var(--line);text-align:left;padding:13px}.rank-table th{color:var(--blue);background:#fff8ec}.video-card{display:grid;grid-template-columns:140px 1fr;gap:16px;align-items:center}.video-thumb{aspect-ratio:16/10;border-radius:18px;background:linear-gradient(135deg,#213b67,#a98be7);display:grid;place-items:center;color:#fff;font-weight:900;position:relative}.video-thumb:after{content:"▶";width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.9);color:var(--blue);display:grid;place-items:center}.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:grid;gap:7px;margin-bottom:12px}.field label{font-weight:900;color:var(--blue)}.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:15px;background:#fff;padding:12px;color:var(--ink)}.field textarea{min-height:120px;resize:vertical}.form-note{font-size:.92rem;color:var(--muted)}.site-footer{background:#111d33;color:#dce7ff;margin-top:40px}.footer-grid{max-width:1180px;margin:auto;padding:34px 20px;display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}.site-footer h2{font-size:1rem;color:#fff;margin:0 0 8px}.site-footer p{margin:0;color:#c6d1ea}.empty-hint{display:none;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:18px;padding:16px;margin-top:14px}.domain-chip{display:inline-flex;align-items:center;gap:8px;background:#eef5ff;border:1px solid rgba(32,58,103,.16);border-radius:999px;padding:8px 12px;font-weight:900;color:var(--blue)}
@media (max-width:960px){.hero,.feature-band,.contact-box{grid-template-columns:1fr}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.stat-strip{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.section-head{align-items:flex-start;flex-direction:column}.hero-card{padding:26px}}
@media (max-width:720px){.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:12px;box-shadow:var(--shadow)}.nav-links.open{display:grid}.nav-links a{padding:11px 13px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.stat-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.hero{padding-top:20px}.hero-card{border-radius:28px}.page-hero{padding:24px;border-radius:28px}.timeline-item{grid-template-columns:1fr}.video-card{grid-template-columns:1fr}.card-actions{align-items:flex-start;flex-direction:column}.comment,.feed-item{flex-direction:column}.comment .avatar,.feed-item img{width:46px;height:46px}}