:root{
    --cream:#fff8ed;
    --cream-2:#fffdf7;
    --navy:#152347;
    --navy-2:#22376b;
    --orange:#ff8a3d;
    --orange-soft:#ffe0c7;
    --purple:#c7b7ff;
    --purple-deep:#7362d1;
    --ink:#26304f;
    --muted:#6d7895;
    --line:#eee2d4;
    --card:#ffffff;
    --shadow:0 18px 50px rgba(21,35,71,.12);
    --radius:26px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
    color:var(--ink);
    background:
        radial-gradient(circle at top left,rgba(255,138,61,.2),transparent 32rem),
        radial-gradient(circle at 90% 8%,rgba(199,183,255,.28),transparent 30rem),
        linear-gradient(180deg,var(--cream),#fff 48%,#fffaf3);
    line-height:1.72;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,textarea{font:inherit}
.container{width:min(1160px,calc(100% - 36px));margin-inline:auto}
.skip-link{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:10px 14px;border-radius:10px;z-index:50}
.skip-link:focus{left:12px}
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,248,237,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(238,226,212,.75)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;color:var(--navy)}
.brand-mark{width:46px;height:46px;border-radius:17px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--navy),var(--purple-deep));box-shadow:0 12px 26px rgba(21,35,71,.22);letter-spacing:-.04em}
.brand-text{font-size:1.2rem;letter-spacing:.02em}
.site-nav{display:flex;align-items:center;gap:6px;background:rgba(255,255,255,.72);padding:8px;border-radius:999px;border:1px solid var(--line)}
.site-nav a{padding:9px 14px;border-radius:999px;color:var(--muted);font-weight:700}
.site-nav a:hover,.site-nav a[aria-current="page"]{background:var(--navy);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border:0;border-radius:14px;background:#fff;box-shadow:0 10px 24px rgba(21,35,71,.1)}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--navy);margin:4px auto;border-radius:99px}
.hero{padding:74px 0 54px}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:42px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--purple-deep);font-weight:800;font-size:.92rem}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px var(--orange-soft)}
h1,.hero-title{font-size:clamp(2.3rem,5vw,5.2rem);line-height:1.06;margin:18px 0 18px;color:var(--navy);letter-spacing:-.06em}
h2{font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.18;margin:0;color:var(--navy);letter-spacing:-.035em}
h3{margin:0 0 10px;color:var(--navy);line-height:1.25;font-size:1.16rem}
p{margin:0 0 14px}.lead{font-size:1.12rem;color:var(--muted);max-width:680px}.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-radius:999px;padding:13px 19px;font-weight:900;border:1px solid transparent;transition:.2s transform,.2s box-shadow,.2s background}.btn:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(21,35,71,.16)}.btn-primary{background:var(--orange);color:#fff}.btn-secondary{background:#fff;color:var(--navy);border-color:var(--line)}.hero-notes{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.note-pill,.tag{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:7px 11px;font-size:.9rem;font-weight:700}.hero-card{position:relative;border-radius:var(--radius);padding:22px;background:rgba(255,255,255,.75);box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.9);overflow:hidden}.hero-card::after{content:"";position:absolute;inset:auto -28px -40px auto;width:180px;height:180px;background:rgba(255,138,61,.16);border-radius:50%;z-index:-1}.hero-card img{border-radius:22px}.floating-card{position:absolute;background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px rgba(21,35,71,.16);border-radius:22px;padding:14px 16px;display:flex;align-items:center;gap:10px;font-weight:900;color:var(--navy)}.floating-card strong{color:var(--orange)}.float-one{left:-18px;bottom:54px}.float-two{right:-12px;top:46px}.section{padding:54px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:24px}.section-head p{color:var(--muted);max-width:560px}.grid{display:grid;gap:20px}.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:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 14px 34px rgba(21,35,71,.08)}.card.compact{padding:18px}.playlist-card{display:flex;flex-direction:column;gap:16px}.playlist-cover{position:relative;min-height:190px;border-radius:22px;overflow:hidden;background:linear-gradient(135deg,#fbddba,#dcd4ff)}.playlist-cover img{width:100%;height:100%;object-fit:cover}.save-btn{position:absolute;right:12px;top:12px;border:0;border-radius:999px;padding:8px 12px;background:#fff;color:var(--navy);font-weight:900;box-shadow:0 10px 24px rgba(21,35,71,.16);cursor:pointer}.save-btn.is-saved{background:var(--navy);color:#fff}.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}.interaction-row{display:flex;flex-wrap:wrap;gap:9px;color:var(--muted);font-weight:700;font-size:.92rem}.topic-card{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:start}.topic-icon{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:var(--cream);font-size:1.5rem}.comment-card{position:relative}.comment-card::before{content:"";position:absolute;left:32px;bottom:-10px;width:22px;height:22px;background:#fff;border-left:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(-45deg)}.avatar-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.avatar{width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--purple),var(--orange-soft));display:grid;place-items:center;color:var(--navy);font-weight:900}.rating-line{display:flex;align-items:center;gap:12px;margin:11px 0}.stars{letter-spacing:1px;color:#f6a739;font-size:1.12rem;white-space:nowrap}.bar{height:10px;background:#f1e7dc;border-radius:999px;overflow:hidden;flex:1}.bar span{display:block;height:100%;background:linear-gradient(90deg,var(--orange),var(--purple-deep));border-radius:999px}.circle-card{min-height:190px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(180deg,#fff,rgba(255,224,199,.36))}.challenge{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px;align-items:center}.challenge-poster{border-radius:24px;overflow:hidden;background:#fff}.check-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:10px}.check-list li{display:flex;gap:10px;align-items:flex-start}.check-list li::before{content:"✓";display:grid;place-items:center;flex:0 0 24px;height:24px;border-radius:9px;background:var(--orange-soft);color:var(--orange);font-weight:900}.activity-feed{display:grid;gap:14px}.feed-item{display:grid;grid-template-columns:48px 1fr;gap:12px;padding:14px;border-radius:20px;background:#fff;border:1px solid var(--line)}.feed-item p{margin:0}.notice{background:linear-gradient(135deg,var(--navy),#30437a);color:#fff;border-radius:32px;padding:34px;box-shadow:var(--shadow)}.notice h2{color:#fff}.notice p{color:rgba(255,255,255,.78)}.faq-list{display:grid;gap:14px}.faq-item{border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden}.faq-item button{width:100%;border:0;background:transparent;text-align:left;padding:18px 20px;font-weight:900;color:var(--navy);display:flex;align-items:center;justify-content:space-between;cursor:pointer}.faq-item button::after{content:"+";font-size:1.4rem;color:var(--orange)}.faq-item.is-open button::after{content:"−"}.faq-item .answer{display:none;padding:0 20px 18px;color:var(--muted)}.faq-item.is-open .answer{display:block}.page-hero{padding:58px 0 34px}.page-hero .lead{max-width:760px}.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:28px;align-items:center}.media-panel{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow);border:1px solid var(--line)}.list-stack{display:grid;gap:14px}.list-row{display:grid;grid-template-columns:110px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:14px}.mini-cover{width:110px;height:78px;border-radius:18px;object-fit:cover;background:var(--cream)}.status-badge{display:inline-flex;border-radius:999px;background:var(--cream);color:var(--purple-deep);padding:7px 11px;font-weight:900;font-size:.88rem}.table-card{overflow:auto}.score-table{width:100%;border-collapse:collapse;min-width:680px}.score-table th,.score-table td{text-align:left;padding:14px 12px;border-bottom:1px solid var(--line)}.score-table th{color:var(--navy);font-size:.95rem}.score-table td{color:var(--muted)}.video-card{position:relative;overflow:hidden}.play-chip{position:absolute;left:24px;top:24px;width:52px;height:52px;border-radius:50%;background:#fff;display:grid;place-items:center;box-shadow:0 12px 28px rgba(21,35,71,.2);color:var(--orange);font-weight:900}.form-card form{display:grid;gap:14px}.field{display:grid;gap:7px}.field label{font-weight:900;color:var(--navy)}.field input,.field textarea,.field select{width:100%;border:1px solid var(--line);border-radius:17px;padding:13px 14px;background:#fff;color:var(--ink)}.field textarea{min-height:130px;resize:vertical}.form-hint{color:var(--muted);font-size:.92rem}.domain-box{display:grid;gap:10px;background:#fff;border:1px dashed var(--purple-deep);border-radius:22px;padding:18px}.site-footer{margin-top:54px;background:var(--navy);color:#fff;padding:42px 0}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .9fr;gap:26px}.site-footer p,.site-footer a{color:rgba(255,255,255,.78)}.site-footer a{display:block;margin:8px 0}.site-footer h2{font-size:1rem;color:#fff;margin-bottom:12px}.footer-brand .brand-mark{background:linear-gradient(135deg,var(--orange),var(--purple))}.footer-brand .brand-text{color:#fff}.soft-bg{background:rgba(255,255,255,.48);border-top:1px solid rgba(238,226,212,.72);border-bottom:1px solid rgba(238,226,212,.72)}.center{text-align:center}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.muted{color:var(--muted)}.tiny{font-size:.88rem;color:var(--muted)}
@media (max-width: 940px){
    .hero-grid,.challenge,.split{grid-template-columns:1fr}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.float-one,.float-two{position:static;margin-top:12px}.hero-card{display:grid;gap:12px}.list-row{grid-template-columns:88px 1fr}.list-row .status-badge{grid-column:2}.mini-cover{width:88px;height:68px}.section-head{align-items:flex-start;flex-direction:column}.nav-toggle{display:block}.site-nav{position:absolute;left:18px;right:18px;top:70px;display:none;flex-direction:column;align-items:stretch;border-radius:24px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.site-nav a{text-align:center}.nav-wrap{position:relative}
}
@media (max-width: 620px){
    .container{width:min(100% - 24px,1160px)}.hero{padding-top:44px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.card{padding:18px}.notice{padding:24px;border-radius:24px}.hero-actions{flex-direction:column}.btn{width:100%}h1,.hero-title{font-size:2.28rem}.playlist-cover{min-height:168px}.list-row{grid-template-columns:1fr}.mini-cover{width:100%;height:150px}.list-row .status-badge{grid-column:auto;justify-self:start}
}

.w-72{width:72%}.w-76{width:76%}.w-78{width:78%}.w-84{width:84%}.w-86{width:86%}.w-88{width:88%}