:root{
    --cream:#fff8ed;
    --cream-2:#fff1dc;
    --navy:#15345d;
    --navy-2:#204a7e;
    --orange:#ff8a3d;
    --purple:#b9a2ff;
    --purple-2:#efe9ff;
    --ink:#1f2a3d;
    --muted:#667085;
    --line:#eadfce;
    --card:#ffffff;
    --shadow:0 18px 50px rgba(21,52,93,.13);
    --radius:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,var(--cream),#fff 52%,var(--purple-2));color:var(--ink);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
.top-strip{display:flex;justify-content:space-between;gap:18px;padding:8px clamp(18px,4vw,64px);background:var(--navy);color:#fff8ed;font-size:14px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,248,237,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(234,223,206,.75)}
.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px clamp(18px,4vw,64px)}
.brand{display:flex;align-items:center;gap:12px;color:var(--navy)}
.brand-icon{width:46px;height:46px;display:grid;place-items:center;border-radius:16px;background:linear-gradient(135deg,var(--orange),var(--purple));color:#fff;font-weight:900;box-shadow:var(--shadow)}
.brand strong{display:block;font-size:20px;letter-spacing:.04em}.brand em{display:block;font-style:normal;font-size:12px;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.nav-links a{padding:9px 13px;border-radius:999px;color:var(--navy);font-size:15px}.nav-links a:hover{background:#fff;color:var(--orange);box-shadow:0 10px 24px rgba(21,52,93,.08)}
.nav-toggle{display:none;width:44px;height:44px;border:0;border-radius:14px;background:#fff;color:var(--navy);box-shadow:0 12px 30px rgba(21,52,93,.1)}.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);margin:4px auto;border-radius:4px}
.section{padding:70px clamp(18px,4vw,64px)}.section.compact{padding-top:38px}.wrap{max-width:1180px;margin:0 auto}.hero{position:relative;overflow:hidden}.hero .wrap{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);gap:42px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:rgba(255,255,255,.72);border-radius:999px;padding:8px 14px;color:var(--navy);font-weight:700;font-size:14px}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 6px rgba(255,138,61,.18)}
h1,.page-title{font-size:clamp(36px,6vw,72px);line-height:1.08;margin:20px 0 18px;color:var(--navy);letter-spacing:-.04em}h2{font-size:clamp(28px,4vw,44px);line-height:1.18;margin:0 0 16px;color:var(--navy)}h3{font-size:22px;margin:0 0 10px;color:var(--navy)}p{margin:0 0 14px}.lead{font-size:clamp(17px,2vw,22px);color:#354762;max-width:740px}.muted{color:var(--muted)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:13px 19px;background:var(--navy);color:#fff;font-weight:800;box-shadow:0 15px 32px rgba(21,52,93,.18);cursor:pointer}.btn.light{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn.orange{background:var(--orange)}.btn:hover{transform:translateY(-1px)}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:30px}.stat{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:0 8px 24px rgba(21,52,93,.06)}.stat strong{display:block;font-size:28px;color:var(--orange)}.stat span{font-size:13px;color:var(--muted)}
.visual-card{position:relative;background:linear-gradient(145deg,#fff,var(--cream-2));border:1px solid var(--line);border-radius:36px;padding:20px;box-shadow:var(--shadow)}.visual-card:after{content:"";position:absolute;inset:auto -40px -45px auto;width:150px;height:150px;border-radius:50%;background:rgba(185,162,255,.36);z-index:-1}.visual-card .badge-float{position:absolute;right:18px;top:18px;background:var(--navy);color:#fff;border-radius:999px;padding:8px 13px;font-size:13px;font-weight:800}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:26px}.section-head p{max-width:620px;color:var(--muted)}
.grid{display:grid;gap:22px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 30px rgba(21,52,93,.08)}.card:hover{box-shadow:var(--shadow)}.card-note{display:flex;align-items:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:14px}.tag{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;background:var(--purple-2);color:var(--navy);font-weight:700;font-size:13px}.tag.orange{background:#ffe3cf;color:#8a3a0b}.tag.navy{background:#e7eef8;color:var(--navy)}
.playlist-card{overflow:hidden;padding:0}.playlist-cover{height:180px;background:linear-gradient(135deg,var(--purple),#fff4e5);display:grid;place-items:center}.playlist-body{padding:20px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.mini-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--navy);font-weight:700;font-size:14px}.mini-btn:hover{border-color:var(--orange);color:var(--orange)}
.topic{display:grid;grid-template-columns:70px 1fr;gap:16px;align-items:start}.topic-icon{width:70px;height:70px;border-radius:22px;background:linear-gradient(135deg,var(--orange),var(--purple));display:grid;place-items:center;color:#fff;font-size:28px;font-weight:900}.thread{border-left:4px solid var(--orange);padding-left:16px}.score{font-size:36px;line-height:1;color:var(--orange);font-weight:900}.stars{letter-spacing:2px;color:#ffad3b}.bar{height:12px;border-radius:999px;background:#edf1f6;overflow:hidden}.bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--orange),var(--purple))}.bar.w92 span{width:92%}.bar.w84 span{width:84%}.bar.w78 span{width:78%}.bar.w70 span{width:70%}
.avatar-row{display:flex;align-items:center}.avatar{width:42px;height:42px;border-radius:50%;border:3px solid #fff;background:linear-gradient(135deg,var(--purple),var(--orange));margin-left:-10px}.avatar:first-child{margin-left:0}.bubble{position:relative;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.bubble:before{content:"";position:absolute;left:24px;bottom:-10px;width:18px;height:18px;background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(45deg)}
.timeline{position:relative}.timeline:before{content:"";position:absolute;left:18px;top:4px;bottom:4px;width:2px;background:var(--line)}.timeline-item{position:relative;padding-left:52px;margin-bottom:22px}.timeline-item:before{content:"";position:absolute;left:8px;top:6px;width:22px;height:22px;border-radius:50%;background:var(--orange);border:5px solid var(--cream)}
.info-list{display:grid;gap:12px}.info-list li{list-style:none;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px 16px}.info-list strong{color:var(--navy)}
.notice{background:linear-gradient(135deg,var(--navy),#2d568c);color:#fff;border-radius:34px;padding:34px;box-shadow:var(--shadow)}.notice h2,.notice h3{color:#fff}.notice .btn.light{color:var(--navy)}
.form{display:grid;gap:16px}.field{display:grid;gap:7px}.field span{font-weight:800;color:var(--navy)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:16px;background:#fff;padding:12px 14px;color:var(--ink)}textarea{min-height:150px;resize:vertical}.form-msg{display:none;color:var(--navy);background:#fff4e5;border:1px solid var(--line);padding:12px 14px;border-radius:16px}.form-msg.show{display:block}
.faq details{background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px 18px}.faq details+details{margin-top:12px}.faq summary{cursor:pointer;font-weight:900;color:var(--navy)}.faq p{padding-top:10px;color:var(--muted)}
.site-footer{background:var(--navy);color:#fff8ed;padding:42px clamp(18px,4vw,64px) 24px}.footer-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px}.site-footer p{color:rgba(255,248,237,.78)}.footer-bottom{max-width:1180px;margin:28px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:rgba(255,248,237,.78)}
.page-hero{background:radial-gradient(circle at 12% 10%,rgba(255,138,61,.22),transparent 32%),radial-gradient(circle at 88% 8%,rgba(185,162,255,.33),transparent 34%)}.page-hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.pill-list{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.pill-list span{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--navy);font-weight:800;font-size:14px}
@media (max-width:980px){.hero .wrap,.page-hero .wrap,.grid.two,.grid.three,.grid.four,.footer-grid{grid-template-columns:1fr}.section-head{display:block}.top-strip{display:none}.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:18px;right:18px;top:76px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:14px;box-shadow:var(--shadow)}.nav-links.open{display:grid}.nav-links a{padding:12px 14px}.hero-stats{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.section{padding:46px 16px}.nav-shell{padding:14px 16px}.hero-stats{grid-template-columns:1fr}.visual-card{border-radius:24px}.card{padding:18px}.notice{padding:24px}.footer-bottom{display:grid}.topic{grid-template-columns:1fr}.topic-icon{width:56px;height:56px}}
@media (prefers-reduced-motion:no-preference){.card,.btn,.nav-links a{transition:.22s ease}.hero .visual-card{animation:floatCard 6s ease-in-out infinite}@keyframes floatCard{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}}