:root{--bg:#0b0b0f;--surface:#17171e;--surface-2:#1e1e27;--line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.14);--text:#f2f2f5;--dim:#b4b4c0;--faint:#6f6f7e;--brand:#ff2f6d;--brand2:#ff7a3d;--ok:#35d07f;--mid:#ffc53d;--bad:#ff5a5a;--r:18px}
*{box-sizing:border-box}html,body{margin:0}[hidden]{display:none!important}
body{min-height:100vh;background:var(--bg);color:var(--text);font:15px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 20px}
.grad{background:linear-gradient(135deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}

/* 顶栏 */
.top{position:sticky;top:0;z-index:5;background:rgba(11,11,15,.75);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:14px;height:64px}
.top img{height:40px;width:auto}
.top__nav{margin-left:auto;display:flex;gap:22px;font-size:14px;color:var(--dim)}
.top__nav a:hover{color:#fff}
.top .btn{height:38px;padding:0 18px;font-size:14px}
@media (max-width:760px){.top__nav{display:none}.top .btn{margin-left:auto}}

/* 品牌主视觉 */
.hero{position:relative;overflow:hidden;padding:clamp(56px,10vw,120px) 0 clamp(48px,8vw,90px);text-align:center}
.hero::before{content:"";position:absolute;inset:-20% -10% auto;height:120%;z-index:-1;
  background:radial-gradient(45% 55% at 50% 30%,rgba(255,47,109,.30),transparent 70%),radial-gradient(35% 45% at 18% 60%,rgba(255,122,61,.16),transparent 70%),radial-gradient(35% 45% at 85% 55%,rgba(150,80,255,.16),transparent 70%)}
.hero__logo{display:block;margin:0 auto;height:clamp(84px,14vw,128px);width:auto;filter:drop-shadow(0 18px 40px rgba(255,47,109,.35))}
.hero__eyebrow{display:inline-block;margin:22px 0 10px;padding:5px 14px;border-radius:99px;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:#ff8fb0;background:rgba(255,47,109,.12);border:1px solid rgba(255,47,109,.3)}
.hero h1{margin:0;font-size:clamp(34px,7vw,64px);font-weight:900;letter-spacing:-.02em;line-height:1.1}
.hero__lead{max-width:640px;margin:18px auto 0;font-size:clamp(15px,2vw,18px);color:var(--dim)}
.hero__cta{margin-top:30px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 30px;border-radius:99px;font-weight:750;font-size:16px;transition:transform .2s,box-shadow .2s}
.btn--main{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 14px 36px rgba(255,47,109,.42)}
.btn--main:hover{transform:translateY(-2px);box-shadow:0 18px 44px rgba(255,47,109,.5)}
.btn--ghost{color:var(--dim);border:1px solid var(--line-strong);background:rgba(255,255,255,.03)}
.btn--ghost:hover{color:#fff;border-color:var(--brand)}
.hero__line{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--faint)}
.hero__line b{color:var(--dim);font-weight:600}

/* 数据 */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:-10px}
.stats div{padding:22px 12px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);text-align:center}
.stats b{display:block;font-size:clamp(26px,4vw,38px);font-weight:900;line-height:1.1}
.stats b small{font-size:.45em;font-weight:700;margin-left:2px;color:var(--dim)}
.stats span{font-size:13px;color:var(--faint)}
@media (max-width:640px){.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}

section.block{margin-top:clamp(48px,7vw,80px)}
.block__head{text-align:center;margin-bottom:26px}
.block__head h2{margin:0;font-size:clamp(22px,3.4vw,32px);font-weight:850;letter-spacing:-.01em}
.block__head p{margin:8px 0 0;color:var(--faint)}

/* 频道 */
.channels{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.channel{--h:330;position:relative;overflow:hidden;display:flex;flex-direction:column;min-height:210px;padding:22px;border-radius:var(--r);border:1px solid var(--line);
  background:radial-gradient(90% 80% at 100% 0%,hsl(var(--h) 85% 55% / .35),transparent 60%),linear-gradient(160deg,hsl(var(--h) 45% 16%),var(--surface) 70%);transition:transform .2s,border-color .2s}
.channel:hover{transform:translateY(-3px);border-color:hsl(var(--h) 80% 60% / .6)}
.channel h3{margin:0 0 8px;font-size:20px;font-weight:850}
.channel p{margin:0;font-size:13.5px;color:var(--dim)}
.channel span{margin-top:auto;padding-top:16px;font-size:13px;font-weight:700;color:#fff}
@media (max-width:900px){.channels{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 卖点 */
.features{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.feature{padding:22px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line)}
.feature i{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));box-shadow:0 8px 22px rgba(255,47,109,.35)}
.feature h3{margin:14px 0 6px;font-size:16px}
.feature p{margin:0;font-size:13.5px;color:var(--dim)}
@media (max-width:900px){.features{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 线路（次要） */
.access{display:grid;grid-template-columns:1.3fr 1fr;gap:14px}
@media (max-width:860px){.access{grid-template-columns:1fr}}
.card{padding:20px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line)}
.card h3{margin:0 0 12px;font-size:16px;display:flex;align-items:center;gap:10px}
.card h3 small{margin-left:auto;font-size:12px;font-weight:500;color:var(--faint)}
.lines{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.line{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line)}
.line.is-best{border-color:rgba(255,47,109,.55)}
.dot{flex:0 0 9px;height:9px;border-radius:50%;background:var(--faint)}
.dot.testing{animation:blink 1s infinite}.dot.ok{background:var(--ok);box-shadow:0 0 10px var(--ok)}.dot.mid{background:var(--mid)}.dot.bad{background:var(--bad)}
@keyframes blink{50%{opacity:.25}}
.line__info{flex:1;min-width:0}
.line__host{display:block;font-weight:700;font-size:14px;overflow-wrap:anywhere}
.line__meta{display:block;font-size:12px;color:var(--faint)}
.line__tag{display:inline-block;margin-right:6px;padding:0 6px;border-radius:5px;font-size:11px;font-weight:700;color:var(--dim);background:rgba(255,255,255,.07)}
.line.is-best .line__tag{color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.line__ms{font-size:12.5px;font-variant-numeric:tabular-nums;color:var(--dim);white-space:nowrap}
.mini{display:inline-flex;align-items:center;justify-content:center;height:30px;padding:0 11px;border-radius:9px;font-size:12.5px;font-weight:600;border:1px solid var(--line-strong);color:var(--dim)}
.mini:hover{color:#fff;border-color:var(--brand)}
.mini--go{color:#fff;border-color:transparent;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.retest{margin-left:auto;font-size:12.5px;color:var(--faint)}.retest:hover{color:#ff8fb0}
.tips{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.tips li{display:flex;gap:10px;font-size:13.5px;color:var(--dim)}
.tips b{color:var(--text)}
.socials{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media (max-width:900px){.socials{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:520px){.socials{grid-template-columns:1fr}}
.socials a{padding:18px;border-radius:var(--r);background:var(--surface);border:1px solid var(--line);transition:border-color .2s,transform .2s}
.socials a:hover{border-color:rgba(255,47,109,.55);transform:translateY(-2px)}
.socials a{display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center}.socials i{grid-row:span 2;display:grid;place-items:center;width:44px;height:44px;border-radius:13px;box-shadow:0 8px 22px rgba(255,47,109,.3);color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2))}.socials b{display:block;font-size:15px}.socials span{font-size:12px;color:var(--faint);overflow-wrap:anywhere}
@media (max-width:520px){.line{flex-wrap:wrap}.line__btns{display:flex;gap:6px;width:100%}.line__btns .mini{flex:1}}

.foot{margin:clamp(48px,7vw,80px) 0 0;padding:26px 0 34px;border-top:1px solid var(--line);color:var(--faint);font-size:12.5px}
.foot .wrap{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.foot img{height:32px;width:auto;opacity:.9}
.age{flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;border:1.5px solid var(--brand);color:#ff6b95;font-size:11px;font-weight:700}
.foot span:last-child{margin-left:auto}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);opacity:0;padding:10px 18px;border-radius:99px;background:#fff;color:#111;font-size:13.5px;font-weight:600;transition:.25s;pointer-events:none;z-index:9}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* Production states and narrow screens. */
:root{--faint:#9696a6}
.hero{isolation:isolate}.hero__logo{max-width:100%;object-fit:contain}
.hero h1{overflow-wrap:anywhere}.hero__line{max-width:100%;justify-content:center;overflow-wrap:anywhere}
.hero__line .dot{flex-shrink:0}.top img{max-width:100px;object-fit:contain}
.line__btns{display:flex;gap:6px}.line__btns .mini{white-space:nowrap}
.line__tag{white-space:nowrap}.line__meta{overflow-wrap:anywhere}
.category-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.category-links a{padding:7px 14px;border:1px solid var(--line-strong);border-radius:99px;color:var(--dim);font-size:13px}
.category-links a:hover{border-color:var(--brand);color:var(--text)}
[aria-disabled="true"],button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}
a:focus-visible,button:focus-visible{outline:2px solid #ff8fb0;outline-offset:4px}
.empty-state{padding:16px;border:1px solid var(--line-strong);border-radius:12px;color:var(--dim)}
.toast{max-width:calc(100% - 32px);border-radius:16px;overflow-wrap:anywhere;text-align:center}
.copy-fallback{position:fixed;left:0;top:0;opacity:0;width:1px;height:1px}
@media(max-width:380px){.wrap{padding:0 16px}.channel,.feature{padding:16px}.hero__cta .btn{width:100%;padding:0 18px}.hero h1{font-size:30px}.card{padding:16px}.line{gap:8px}.foot span:last-child{margin-left:0}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* Editable labels must not push navigation or cards outside their containers. */
.top__nav{min-width:0;max-width:calc(100% - 220px)}
.top__nav a{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top .btn,.top img{flex-shrink:0}
.channel,.category-links a{min-width:0;overflow-wrap:anywhere}
.category-links a{max-width:100%}