/* 漫天星漫画 o7py.cn — 全局样式 */
:root{
  --bg:#0b0b14;--bg-2:#11122a;--surface:#171833;--surface-2:#1f2148;
  --text:#eef0ff;--muted:#a4a8c8;--brand:#7c5cff;--brand-2:#22d3ee;
  --accent:#ff6ad5;--border:rgba(255,255,255,.08);--radius:14px;
  --shadow:0 10px 40px -10px rgba(124,92,255,.45);
  --grad:linear-gradient(135deg,#7c5cff 0%,#22d3ee 60%,#ff6ad5 100%);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block;height:auto}
a{color:var(--brand-2);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:12px 26px;border-radius:999px;background:var(--grad);color:#fff;font-weight:600;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow);color:#fff}
.btn.ghost{background:transparent;border:1px solid var(--border);color:var(--text)}

/* HEADER */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:rgba(11,11,20,.75);border-bottom:1px solid var(--border)}
.nav-row{display:flex;align-items:center;gap:24px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--text)}
.logo img{width:38px;height:38px;border-radius:8px;background:#fff;padding:4px}
.logo span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.main-nav{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.main-nav a{padding:8px 14px;border-radius:8px;color:var(--text);font-weight:500;font-size:15px}
.main-nav a:hover,.main-nav a.active{background:var(--surface-2);color:#fff}
.search-box{display:flex;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:6px 14px;gap:8px;min-width:220px}
.search-box input{background:transparent;border:none;outline:none;color:var(--text);flex:1;font-size:14px}
.search-box button{background:var(--grad);border:none;color:#fff;padding:6px 14px;border-radius:999px;cursor:pointer;font-size:13px}
.menu-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text);width:40px;height:40px;border-radius:8px;cursor:pointer;font-size:20px}

/* HERO */
.hero{position:relative;padding:90px 0 70px;overflow:hidden;background:radial-gradient(ellipse at top,rgba(124,92,255,.25),transparent 60%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
.hero h1{font-size:48px;line-height:1.2;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:18px;color:var(--muted);margin-bottom:28px;max-width:560px}
.hero-stats{display:flex;gap:30px;margin-top:36px}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-size:28px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-stats span{color:var(--muted);font-size:13px}
.hero-art{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:16/10;background:var(--surface)}
.hero-art img{width:100%;height:100%;object-fit:cover}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}

/* SECTIONS */
section{padding:70px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head .tag{display:inline-block;padding:4px 14px;border-radius:999px;background:rgba(124,92,255,.15);color:var(--brand-2);font-size:13px;margin-bottom:14px}
.section-head h2{font-size:36px;margin-bottom:12px}
.section-head p{color:var(--muted);max-width:680px;margin:0 auto}

/* CARDS / VIDEO CARDS */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.video-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;display:flex;flex-direction:column}
.video-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow)}
.video-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#000}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.video-card:hover .video-thumb img{transform:scale(1.06)}
.play-btn{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .25s;background:rgba(0,0,0,.35)}
.video-card:hover .play-btn{opacity:1}
.play-btn::before{content:"";width:64px;height:64px;border-radius:50%;background:var(--grad);box-shadow:0 8px 30px rgba(124,92,255,.6);display:flex}
.play-btn::after{content:"";position:absolute;width:0;height:0;border-left:18px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:6px}
.duration{position:absolute;bottom:8px;right:8px;background:rgba(0,0,0,.7);color:#fff;font-size:12px;padding:2px 8px;border-radius:4px}
.video-meta{padding:16px 18px;flex:1;display:flex;flex-direction:column;gap:8px}
.video-meta h3{font-size:16px;line-height:1.45;font-weight:600}
.video-meta h3 a{color:var(--text)}
.video-meta h3 a:hover{color:var(--brand-2)}
.video-stats{display:flex;gap:14px;color:var(--muted);font-size:13px;margin-top:auto;padding-top:8px}
.video-stats span::before{content:"·";margin-right:4px;color:var(--border)}
.video-stats span:first-child::before{content:""}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tags span{font-size:11px;padding:2px 8px;border-radius:4px;background:var(--surface-2);color:var(--brand-2)}

/* CHANNEL PILLS */
.channel-pills{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.channel-pills a{padding:10px 22px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--text);font-weight:500;font-size:14px;display:flex;align-items:center;gap:8px}
.channel-pills a:hover,.channel-pills a.active{background:var(--grad);border-color:transparent;color:#fff}

/* MODULES (AI/community) */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}
.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .25s,border-color .25s}
.feature-card:hover{transform:translateY(-3px);border-color:var(--brand)}
.feature-icon{width:48px;height:48px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:22px;color:#fff}
.feature-card h3{font-size:18px;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:14px}

/* EXPERTS */
.expert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.expert{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;text-align:center}
.expert img{width:96px;height:96px;border-radius:50%;object-fit:cover;margin:0 auto 14px;border:3px solid var(--brand)}
.expert h3{font-size:18px;margin-bottom:4px}
.expert .role{color:var(--brand-2);font-size:13px;margin-bottom:10px}
.expert ul{list-style:none;color:var(--muted);font-size:13px;text-align:left;margin:14px 0}
.expert ul li{padding:3px 0;padding-left:18px;position:relative}
.expert ul li::before{content:"★";position:absolute;left:0;color:var(--brand-2)}
.expert-actions{display:flex;gap:8px;justify-content:center;margin-top:14px}
.expert-actions a{font-size:13px;padding:6px 14px;border-radius:6px;background:var(--surface-2);color:var(--text)}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;padding:18px 22px;cursor:pointer;transition:border-color .2s}
.faq details[open]{border-color:var(--brand)}
.faq summary{font-weight:600;font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::after{content:"+";font-size:22px;color:var(--brand-2);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:12px;color:var(--muted);font-size:14px}

/* REVIEWS */
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.review{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.review .stars{color:#ffd166;margin-bottom:10px}
.review p{color:var(--muted);font-size:14px;margin-bottom:14px}
.review .who{display:flex;align-items:center;gap:10px}
.review .who .avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700}
.review .who strong{font-size:14px}
.review .who span{font-size:12px;color:var(--muted);display:block}

/* PARTNERS */
.partners-band{padding:30px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.partners-band img{width:100%;opacity:.9;filter:invert(1) hue-rotate(180deg)}

/* HOW-TO */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;counter-reset:s}
.step{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;position:relative;counter-increment:s}
.step::before{content:counter(s,decimal-leading-zero);position:absolute;top:14px;right:18px;font-size:36px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.6}
.step h3{font-size:17px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:start}
.contact-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:30px}
.contact-card h3{margin-bottom:14px}
.contact-card ul{list-style:none}
.contact-card li{padding:8px 0;color:var(--muted);font-size:15px;border-bottom:1px dashed var(--border)}
.contact-card li:last-child{border:none}
.contact-card li strong{color:var(--text);margin-right:8px}
.contact-imgs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:16px}
.contact-imgs img{border-radius:10px;background:#fff}

/* FOOTER */
.site-footer{background:#070710;border-top:1px solid var(--border);padding:50px 0 24px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:30px}
.footer-grid h4{margin-bottom:14px;font-size:15px}
.footer-grid ul{list-style:none}
.footer-grid li{padding:4px 0;color:var(--muted);font-size:14px}
.footer-grid li a{color:var(--muted)}
.footer-grid li a:hover{color:var(--brand-2)}
.qrs{display:flex;gap:14px;margin-top:14px}
.qrs figure{text-align:center}
.qrs img{width:96px;height:96px;border-radius:8px;background:#fff;padding:6px}
.qrs figcaption{font-size:12px;color:var(--muted);margin-top:6px}
.share-row{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}
.share-row button{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:6px 12px;border-radius:999px;font-size:12px;cursor:pointer}
.share-row button:hover{background:var(--surface-2);color:var(--brand-2)}
.copyright{text-align:center;padding-top:24px;border-top:1px solid var(--border);color:var(--muted);font-size:13px}

/* PAGE HEADER (内页) */
.page-header{padding:60px 0 40px;background:radial-gradient(ellipse at top,rgba(124,92,255,.18),transparent 60%)}
.crumbs{color:var(--muted);font-size:13px;margin-bottom:14px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-2)}
.page-header h1{font-size:36px;margin-bottom:10px}
.page-header p{color:var(--muted);max-width:720px}

/* RESPONSIVE */
@media (max-width:900px){
  .hero-grid,.contact-grid,.footer-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:34px}
  .menu-toggle{display:block}
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--bg-2);flex-direction:column;padding:16px;border-bottom:1px solid var(--border)}
  .main-nav.open{display:flex}
  .main-nav a{width:100%}
  .search-box{display:none}
  .nav-row{position:relative}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section-head h2{font-size:28px}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:18px}
}