/* roulang page: index */
:root{
  --bg:#0C0A16;
  --bg-2:#14111F;
  --surface:#1C1829;
  --surface-2:#241E35;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#FF5C2B;
  --primary-d:#E0431A;
  --cyan:#35E0C8;
  --gold:#F3C24B;
  --text:#F2EFF8;
  --text-dim:#A7A1BC;
  --light-bg:#F6F4FA;
  --light-bg-2:#FFFFFF;
  --light-text:#1B1726;
  --light-dim:#5C5670;
  --light-line:rgba(27,23,38,.1);
  --r-sm:12px;
  --r:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-dark:0 12px 32px rgba(0,0,0,.45),0 0 24px rgba(255,92,43,.12);
  --sh-dark-lg:0 20px 48px rgba(0,0,0,.55),0 0 32px rgba(255,92,43,.16);
  --sh-light:0 8px 24px rgba(27,23,38,.08);
  --sh-light-lg:0 16px 40px rgba(27,23,38,.12);
  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"SF Mono",ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p,figure{margin:0}
input{font:inherit}
::selection{background:rgba(255,92,43,.32);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.mono{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 顶部双层导航 ============ */
.site-header{position:relative;z-index:70}
.brand-bar{background:rgba(12,10,22,.94);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo-mark{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#FF7A45 0%,#FF5C2B 42%,#5B2795 100%);
  box-shadow:0 6px 18px rgba(255,92,43,.32),inset 0 1px 0 rgba(255,255,255,.28);
}
.logo-mark svg{width:20px;height:20px;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text b{font-size:18px;font-weight:800;letter-spacing:.03em}
.logo-text i{font-style:normal;font-size:10.5px;color:var(--text-dim);letter-spacing:.3em;margin-top:2px}
.search-wrap{flex:1 1 auto;display:flex;align-items:center;gap:10px;max-width:420px}
.search{position:relative;flex:1 1 auto}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text);padding:0 44px 0 18px;font-size:14px;
  transition:border-color .2s,box-shadow .2s,background .2s;
  outline:none;
}
.search input::placeholder{color:#6E6884}
.search input:focus{border-color:var(--cyan);background:rgba(255,255,255,.08);box-shadow:0 0 0 3px rgba(53,224,200,.18)}
.search .s-icon{position:absolute;right:16px;top:50%;transform:translateY(-50%);width:16px;height:16px;opacity:.6;pointer-events:none}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  display:inline-flex;align-items:center;justify-content:center;transition:.2s;flex:0 0 auto;
}
.icon-btn:hover{border-color:rgba(53,224,200,.5);background:rgba(53,224,200,.08)}
.icon-btn svg{width:17px;height:17px}
.search-toggle{display:none}
.brand-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:650;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--primary);color:#190A03;box-shadow:0 8px 20px rgba(255,92,43,.28)}
.btn-primary:hover{background:var(--primary-d);transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,92,43,.38)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,92,43,.3)}
.btn-ghost{border:1px solid rgba(53,224,200,.5);color:var(--cyan);background:rgba(53,224,200,.04)}
.btn-ghost:hover{background:rgba(53,224,200,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn:disabled,.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-size:14px;font-weight:600;transition:gap .2s;
}
.link-arrow svg{width:15px;height:15px;transition:transform .2s}
.link-arrow:hover{gap:10px}
.link-arrow:hover svg{transform:translateX(3px)}

.channel-bar{
  position:sticky;top:0;z-index:65;
  background:rgba(12,10,22,.86);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .25s,border-color .25s;
}
.channel-bar.is-stuck{background:rgba(12,10,22,.96);border-bottom-color:var(--line)}
.channel-scroll{position:relative}
.channel-inner{
  display:flex;align-items:center;gap:10px;height:56px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  transition:height .25s;
  padding:0 20px;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-bar.is-stuck .channel-inner{height:48px}
.channel-scroll::before,
.channel-scroll::after{
  content:"";position:absolute;top:0;bottom:0;width:26px;pointer-events:none;z-index:2;
}
.channel-scroll::before{left:0;background:linear-gradient(90deg,rgba(12,10,22,.95),rgba(12,10,22,0))}
.channel-scroll::after{right:0;background:linear-gradient(270deg,rgba(12,10,22,.95),rgba(12,10,22,0))}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 18px;
  border-radius:var(--r-pill);font-size:14px;color:var(--text-dim);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s,border-color .2s,background .2s;
}
.pill:hover{color:var(--text);border-color:rgba(53,224,200,.42);background:rgba(53,224,200,.07)}
.pill.active{
  background:var(--primary);color:#190A03;border-color:var(--primary);
  font-weight:700;box-shadow:0 6px 16px rgba(255,92,43,.26);
}
.pill.active:hover{background:var(--primary-d);color:#190A03}

/* ============ 通用板块 ============ */
.section{padding:88px 0;position:relative;scroll-margin-top:96px}
.section-tight{padding:64px 0}
.sec-dark{background:var(--bg)}
.sec-dark-2{background:var(--bg-2)}
.sec-dark-2::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:34px 34px;opacity:.045;
}
.sec-light{background:var(--light-bg);color:var(--light-text)}
.sec-light h2,.sec-light h3{color:var(--light-text)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:36px;position:relative;z-index:1;
}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:750;letter-spacing:-.3px;line-height:1.25}
.section-head .title-line{
  display:inline-block;width:34px;height:4px;border-radius:999px;
  background:var(--primary);margin-bottom:14px;display:block;
}
.section-sub{margin-top:10px;font-size:15px;color:var(--text-dim);max-width:620px}
.sec-light .section-sub{color:var(--light-dim)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 92px;background:var(--bg)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.55;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,#0C0A16 20%,rgba(12,10,22,.78) 52%,rgba(20,17,31,.42) 100%);
}
.hero-noise{
  position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:26px 26px;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--cyan);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(53,224,200,.34);background:rgba(53,224,200,.08);
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.hero h1{
  font-size:clamp(30px,5vw,54px);font-weight:800;letter-spacing:-.5px;line-height:1.15;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{font-size:17px;color:#C8C2DA;line-height:1.8;margin-bottom:30px;max-width:480px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags li{
  font-size:13px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-dim);
}
.hero-cards{display:flex;align-items:center;justify-content:center;gap:16px}
.vcard{
  position:relative;flex:0 0 auto;width:26%;
  aspect-ratio:9/16;border-radius:var(--r-lg);overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.vcard img{width:100%;height:100%;object-fit:cover}
.vcard.side{opacity:.68;transform:scale(.93)}
.vcard.main{
  width:38%;border-color:rgba(255,92,43,.4);
  box-shadow:var(--sh-dark-lg);
}
.vcard .veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,10,22,0) 38%,rgba(12,10,22,.45) 66%,rgba(12,10,22,.92) 100%);
}
.vcard .v-title{
  position:absolute;left:14px;right:14px;bottom:14px;
  font-size:13px;line-height:1.45;font-weight:600;color:#fff;
}
.vcard.main .v-title{font-size:15px}
.vcard .v-play{
  width:38px;height:38px;border-radius:50%;margin-top:10px;
  background:rgba(255,92,43,.92);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(255,92,43,.4);
}
.vcard .v-play svg{width:14px;height:14px;margin-left:2px}
.vcard .v-badge{
  position:absolute;top:12px;right:12px;font-size:11px;font-weight:700;
  padding:4px 10px;border-radius:var(--r-pill);
  background:var(--primary);color:#190A03;letter-spacing:.04em;
}
.vcard.side .veil{background:linear-gradient(180deg,rgba(12,10,22,.1),rgba(12,10,22,.86))}

/* ============ 横滑片段轨道 ============ */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 12px;scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.clip{
  position:relative;flex:0 0 210px;scroll-snap-align:start;
  aspect-ratio:9/16;border-radius:20px;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.clip img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.clip:hover{transform:scale(1.03);border-color:var(--cyan);box-shadow:var(--sh-dark)}
.clip:hover img{transform:scale(1.06)}
.clip .c-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,10,22,.05) 34%,rgba(12,10,22,.55) 62%,rgba(12,10,22,.95) 100%);
}
.clip .c-dur{
  position:absolute;right:10px;bottom:64px;
  font-size:11px;padding:3px 7px;border-radius:6px;
  background:rgba(0,0,0,.62);color:#fff;letter-spacing:.04em;
}
.clip .c-body{position:absolute;left:12px;right:12px;bottom:12px}
.clip .c-title{font-size:13px;font-weight:650;line-height:1.4;color:#fff;margin-bottom:4px}
.clip .c-views{font-size:11px;color:#B9B3CC}
.clip .c-play{
  position:absolute;left:50%;top:48%;transform:translate(-50%,-50%) scale(.8);
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,92,43,.94);display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .25s,transform .25s;box-shadow:0 10px 24px rgba(255,92,43,.42);
}
.clip .c-play svg{width:15px;height:15px;margin-left:2px}
.clip:hover .c-play,.clip:focus-within .c-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.rail-btn{
  position:absolute;top:50%;transform:translateY(-50%);z-index:4;
  width:44px;height:44px;border-radius:50%;
  background:rgba(28,24,41,.92);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  transition:.2s;backdrop-filter:blur(8px);
}
.rail-btn:hover{border-color:var(--cyan);background:rgba(53,224,200,.14)}
.rail-btn svg{width:16px;height:16px}
.rail-btn.prev{left:-22px}
.rail-btn.next{right:-22px}

/* ============ 推荐网格 ============ */
.pick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pick-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.pick-card:hover{transform:translateY(-4px);border-color:rgba(255,92,43,.6);box-shadow:var(--sh-dark)}
.pick-card .cover{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--surface-2)}
.pick-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pick-card:hover .cover img{transform:scale(1.05)}
.pick-card .rank{
  position:absolute;left:12px;top:12px;width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(12,10,22,.82);border:1px solid rgba(243,194,75,.5);
  color:var(--gold);font-family:var(--font-num);font-size:14px;font-weight:700;
}
.pick-card .body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.pick-card h3{font-size:16px;font-weight:700;line-height:1.45;margin-bottom:8px}
.pick-card p{font-size:13.5px;color:var(--text-dim);line-height:1.75;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-card .meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;color:var(--cyan);background:rgba(53,224,200,.12);
  border:1px solid rgba(53,224,200,.22);
}
.meta-time{font-size:12.5px;color:#7E7893;font-family:var(--font-num)}
.pick-card .go{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;transition:.25s;flex:0 0 auto;
}
.pick-card .go svg{width:13px;height:13px;transition:transform .25s}
.pick-card:hover .go{border-color:var(--primary);background:rgba(255,92,43,.14)}
.pick-card:hover .go svg{transform:translateX(2px);color:var(--primary)}
.pick-card.feature{grid-column:span 2;grid-row:span 2}
.pick-card.feature .cover{aspect-ratio:16/9}
.pick-card.feature .body{padding:24px 26px 26px}
.pick-card.feature h3{font-size:24px;letter-spacing:-.2px}
.pick-card.feature p{font-size:14.5px;-webkit-line-clamp:3;max-width:520px}
.pick-card.feature .tag{color:var(--gold);background:rgba(243,194,75,.12);border-color:rgba(243,194,75,.26)}

/* ============ 口碑（浅色段） ============ */
.stats-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  padding-bottom:34px;margin-bottom:34px;border-bottom:1px solid var(--light-line);
}
.stat b{display:block;font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--light-text);line-height:1.2}
.stat span{display:block;font-size:13.5px;color:var(--light-dim);margin-top:4px}
.quote-rail{
  display:flex;gap:0;overflow-x:auto;scroll-snap-type:x proximity;
  scrollbar-width:none;-ms-overflow-style:none;padding-bottom:8px;
}
.quote-rail::-webkit-scrollbar{display:none}
.quote{
  flex:0 0 300px;scroll-snap-align:start;
  padding:6px 24px 6px 22px;border-left:1px solid var(--light-line);
}
.quote:first-child{border-left:0;padding-left:0}
.quote-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,#FF7A45,#8B5BE8);color:#fff;
  font-size:15px;font-weight:700;
}
.quote-top .who{line-height:1.3}
.quote-top b{display:block;font-size:14.5px;color:var(--light-text)}
.quote-top em{font-style:normal;font-size:12px;color:#918CA6;font-family:var(--font-num)}
.stars{display:flex;gap:2px;margin-bottom:10px}
.stars svg{width:14px;height:14px;color:var(--gold)}
.stars svg.off{color:#D8D4E4}
.quote p{font-size:14.5px;color:#3B3550;line-height:1.8}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;position:relative;z-index:1}
.news-item{
  display:flex;gap:16px;padding:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:rgba(53,224,200,.5);box-shadow:var(--sh-dark)}
.news-thumb{
  flex:0 0 122px;aspect-ratio:16/10;border-radius:var(--r-sm);overflow:hidden;
  background:var(--surface-2);
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{min-width:0;display:flex;flex-direction:column}
.news-body h3{
  font-size:16px;font-weight:700;line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover h3{color:var(--cyan)}
.news-body p{
  font-size:13.5px;color:var(--text-dim);line-height:1.75;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:12.5px;color:#7E7893}
.news-meta .tag{height:22px;font-size:11.5px}
.news-meta time{font-family:var(--font-num)}
.empty-state{
  grid-column:1 / -1;
  padding:56px 24px;border-radius:var(--r);
  border:1px dashed var(--line-strong);
  background:rgba(28,24,41,.55);
  text-align:center;
}
.empty-state .empty-ico{
  width:88px;height:58px;margin:0 auto 16px;border-radius:12px;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;opacity:.28;
}
.empty-state p{font-size:14.5px;color:var(--text-dim);margin-bottom:16px}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--light-line);background:transparent;
}
.faq-item:first-child{border-top:1px solid var(--light-line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  min-height:64px;padding:14px 4px;
  font-size:16.5px;font-weight:650;color:var(--light-text);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary-d)}
.faq-num{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--gold);flex:0 0 auto;min-width:26px}
.faq-item summary .faq-text{flex:1 1 auto;padding-right:8px}
.faq-sign{
  flex:0 0 auto;width:26px;height:26px;position:relative;
  transition:transform .22s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--light-dim);
  transition:background .2s;
}
.faq-sign::before{width:13px;height:1.6px;transform:translate(-50%,-50%)}
.faq-sign::after{width:1.6px;height:13px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-sign{transform:rotate(45deg)}
.faq-item[open] .faq-sign::before,.faq-item[open] .faq-sign::after{background:var(--primary)}
.faq-item .faq-a{
  padding:0 4px 22px 42px;font-size:15px;line-height:1.85;color:#4A4460;
  animation:fadeIn .22s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#14111F 0%,#1C1829 58%,#241A2E 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:30px 30px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,92,43,.28),rgba(255,92,43,0) 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(23px,3vw,32px);font-weight:750;letter-spacing:-.3px;line-height:1.3;margin-bottom:10px}
.cta-inner p{font-size:15px;color:var(--text-dim)}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.slash-bar{
  width:56px;height:5px;border-radius:999px;
  background:linear-gradient(90deg,var(--primary) 0 40%,var(--gold) 40% 70%,var(--cyan) 70% 100%);
  margin-bottom:18px;
}

/* ============ 页脚 ============ */
.site-footer{background:#0A0812;border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:#8B85A1;line-height:1.85;max-width:300px;margin-bottom:20px}
.socials{display:flex;gap:10px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  transition:.22s;
}
.socials a:hover{border-color:var(--cyan);background:rgba(53,224,200,.1);transform:translateY(-2px)}
.socials svg{width:15px;height:15px;color:var(--text-dim)}
.socials a:hover svg{color:var(--cyan)}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:#8B85A1;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-col .contact-line{font-size:13.5px;color:#8B85A1;line-height:1.8}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;background:#08060F}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:#6E6884;
}
.footer-links{display:flex;gap:20px;flex-wrap:wrap}
.footer-links a{color:#6E6884;transition:color .2s}
.footer-links a:hover{color:var(--cyan)}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  .rail-btn.prev{left:-14px}
  .rail-btn.next{right:-14px}
}
@media (max-width:1180px){
  .rail-btn{display:none}
}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-cards{order:1}
  .hero-copy{order:2}
  .hero-sub{max-width:none}
  .pick-grid{grid-template-columns:repeat(2,1fr)}
  .pick-card.feature{grid-column:span 2;grid-row:auto}
  .pick-card.feature h3{font-size:20px}
  .news-grid{grid-template-columns:1fr}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:26px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .brand-inner{height:62px;gap:14px}
  .search{display:none}
  .search-toggle{display:inline-flex}
  .logo-text b{font-size:16.5px}
  .hero{padding:36px 0 62px}
  .hero h1{font-size:clamp(26px,7vw,36px)}
  .hero-sub{font-size:15.5px}
  .vcard{width:30%}
  .vcard.main{width:40%}
  .vcard.side .v-title{display:none}
  .clip{flex:0 0 176px}
  .clip .c-play{opacity:1;transform:translate(-50%,-50%) scale(.9)}
  .quote{flex:0 0 262px}
  .news-thumb{flex:0 0 100px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .channel-inner{padding:0 16px}
  .pick-grid{grid-template-columns:1fr}
  .pick-card.feature{grid-column:span 1}
  .stats-row{grid-template-columns:1fr 1fr;gap:22px}
  .stat b{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .section{padding:60px 0}
  .hero-tags li{font-size:12px;padding:5px 12px}
  .vcard{width:32%}
  .vcard.main{width:44%}
  .faq-item summary{font-size:15.5px}
  .faq-item .faq-a{padding-left:34px}
  .news-item{flex-direction:column}
  .news-thumb{flex:none;width:100%;aspect-ratio:16/9}
}

/* roulang page: article */
/* ============ 设计令牌 ============ */
:root{
  --bg-deep:#0C0A16;
  --bg-mid:#14111F;
  --panel:#1C1829;
  --panel-2:#231E33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --orange:#FF5C2B;
  --orange-deep:#E0431A;
  --cyan:#35E0C8;
  --gold:#F3C24B;
  --text:#F2EFF8;
  --text-dim:#A7A1BC;
  --text-mute:#7A7492;
  --light-bg:#F6F4FA;
  --light-bg-2:#EFEBF7;
  --white:#FFFFFF;
  --ink:#1B1726;
  --ink-2:#2A2438;
  --ink-dim:#5C5570;
  --light-line:#E3DEF0;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh-dark:0 12px 32px rgba(0,0,0,.45), 0 0 24px rgba(255,92,43,.10);
  --sh-light:0 8px 24px rgba(27,23,38,.08);
  --font:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"SFMono-Regular",ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
  --container:1240px;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:80px;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.num{font-family:var(--font-num);font-feature-settings:"tnum"}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ============ 头部 / 导航 ============ */
.site-header{position:relative;z-index:70;background:var(--bg-deep)}
.brand-bar{padding:14px 0;border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:linear-gradient(140deg,var(--orange),var(--gold));
  display:grid;place-items:center;
  box-shadow:0 0 20px rgba(255,92,43,.35);
}
.logo-mark svg{width:22px;height:22px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:18px;font-weight:800;letter-spacing:-.3px}
.logo-text i{font-style:normal;font-size:10.5px;color:var(--text-dim);letter-spacing:.18em}
.search-wrap{flex:1 1 auto;display:flex;justify-content:center;align-items:center;gap:10px}
.search{position:relative;width:100%;max-width:420px}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  padding:0 44px 0 18px;font-size:14px;color:var(--text);
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.search input::placeholder{color:var(--text-mute)}
.search input:focus{
  outline:none;background:rgba(255,255,255,.07);
  border-color:var(--cyan);box-shadow:0 0 0 2px rgba(53,224,200,.22);
}
.s-icon{position:absolute;right:16px;top:50%;transform:translateY(-50%);width:17px;height:17px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s,background .2s,transform .2s;
}
.icon-btn svg{width:17px;height:17px}
.icon-btn:hover{border-color:var(--cyan);background:rgba(53,224,200,.1)}
.icon-btn:active{transform:scale(.94)}
.search-toggle{display:none}
.brand-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px}

/* 频道行 */
.channel-bar{
  position:relative;z-index:60;
  background:rgba(12,10,22,.94);
  border-bottom:1px solid var(--line);
  transition:height .22s ease;
}
.channel-bar.is-fixed{
  position:fixed;top:0;left:0;right:0;
  backdrop-filter:blur(12px);
  box-shadow:0 10px 28px rgba(0,0,0,.45);
}
body.has-fixed-bar{padding-top:48px}
.channel-scroll{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;position:relative}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-inner{display:flex;align-items:center;gap:10px;height:56px;transition:height .22s ease}
.channel-bar.is-compact .channel-inner{height:48px}
.pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);font-size:13.5px;color:var(--text-dim);
  border:1px solid var(--line);white-space:nowrap;
  transition:color .2s,border-color .2s,background .2s,transform .2s;
}
.pill:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px)}
.pill.active{background:var(--orange);border-color:var(--orange);color:#1A0B04;font-weight:700}
.channel-bar.is-compact .pill{height:30px;font-size:13px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s,color .2s;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--orange);color:#1A0B04;box-shadow:0 8px 20px rgba(255,92,43,.28)}
.btn-primary:hover{background:#FF6E42;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,92,43,.40)}
.btn-ghost{background:transparent;border-color:rgba(53,224,200,.55);color:var(--cyan)}
.btn-ghost:hover{background:rgba(53,224,200,.10);transform:translateY(-2px)}
.btn-dark{background:var(--panel);border-color:var(--line);color:var(--text)}
.btn-dark:hover{border-color:var(--orange);transform:translateY(-2px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none}

/* ============ 文章头部 ============ */
.article-head{
  position:relative;
  padding:36px 0 0;
  background:
    radial-gradient(120% 90% at 50% -30%, rgba(255,92,43,.16), transparent 62%),
    radial-gradient(80% 60% at 100% 0%, rgba(53,224,200,.08), transparent 60%),
    var(--bg-deep);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-dim)}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--cyan)}
.crumb-sep{color:var(--text-mute)}
.crumb-current{color:#8C86A6;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin:18px 0 0;
  font-size:clamp(26px,3.6vw,42px);
  font-weight:800;line-height:1.25;letter-spacing:-.5px;
  max-width:920px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:18px;font-size:13px;color:var(--text-dim)}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 13px;
  border-radius:var(--r-pill);background:rgba(255,92,43,.14);
  color:#FF9166;font-size:12px;font-weight:600;
}
.meta-item .num{color:var(--gold)}
.rule{height:1px;background:var(--line);margin:22px 0 0}

.hero-figure{padding:26px 0 0}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:20px;border:1px solid var(--line);
  box-shadow:var(--sh-dark);
}
.hero-figure figcaption{margin-top:10px;font-size:12.5px;color:#8C86A6}

/* ============ 正文区（浅底段） ============ */
.article-body-wrap{background:var(--light-bg);color:var(--ink);padding:56px 0 72px;margin-top:34px}
.article-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start}
.article-content{max-width:800px;font-size:16.5px;line-height:1.9;color:#241F33;overflow-wrap:break-word}
.article-content h2{
  position:relative;margin:2.4em 0 .8em;padding-left:16px;
  font-size:26px;font-weight:700;line-height:1.35;color:var(--ink);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.24em;width:3px;height:1.05em;
  border-radius:2px;background:var(--orange);
}
.article-content h3{margin:1.8em 0 .6em;font-size:20px;font-weight:700;line-height:1.4;color:var(--ink)}
.article-content p{margin:0 0 1.2em}
.article-content ul,.article-content ol{margin:0 0 1.2em;padding-left:1.5em;list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin:.45em 0}
.article-content li::marker{color:var(--orange)}
.article-content blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--white);
  border-left:3px solid var(--orange);border-radius:0 12px 12px 0;color:#3B3450;
}
.article-content img{border-radius:12px;margin:1.6em auto}
.article-content figure{margin:1.6em 0}
.article-content figcaption{margin-top:8px;font-size:13px;color:var(--ink-dim);text-align:center}
.article-content a{color:var(--orange-deep);text-decoration:underline;text-underline-offset:3px}
.article-content table{width:100%;margin:1.6em 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--light-line);padding:10px 12px;text-align:left}
.article-content thead th{background:var(--white);font-weight:600}
.article-content tbody tr:nth-child(even){background:var(--white)}
.article-content pre{
  margin:1.6em 0;padding:16px 18px;background:var(--panel);color:#EAE7F6;
  border-radius:12px;overflow:auto;font-family:var(--font-num);font-size:14px;line-height:1.7;
}
.article-content code{
  font-family:var(--font-num);background:#EDE9F6;padding:2px 6px;
  border-radius:6px;font-size:14px;
}
.article-content pre code{background:none;padding:0;color:inherit}
.article-content hr{margin:2.2em 0;border:0;height:1px;background:var(--light-line)}

.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:56px 24px;background:var(--white);border:1px dashed var(--light-line);
  border-radius:var(--r-md);text-align:center;color:var(--ink-dim);
}
.empty-state p{margin:0;font-size:17px;color:var(--ink);font-weight:600}
.empty-state span{font-size:14px;color:var(--ink-dim)}

/* 标签组 */
.tag-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--light-line);
}
.tag-row .label{font-size:13px;color:var(--ink-dim);margin-right:4px}
.tag-light{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--white);border:1px solid var(--light-line);
  font-size:13px;color:var(--ink-dim);
  transition:border-color .2s,color .2s,transform .2s;
}
.tag-light:hover{border-color:var(--orange);color:var(--orange-deep);transform:translateY(-2px)}

/* 频道切换导航 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.post-nav a{
  display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;background:var(--white);
  border:1px solid var(--light-line);border-radius:var(--r-md);
  box-shadow:var(--sh-light);
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.post-nav a:hover{transform:translateY(-3px);border-color:var(--orange);box-shadow:0 12px 28px rgba(27,23,38,.12)}
.post-nav .k{font-size:12px;color:var(--ink-dim)}
.post-nav .t{font-size:15px;font-weight:600;color:var(--ink)}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--white);border:1px solid var(--light-line);
  border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-light);
}
.side-card.sticky-toc{position:sticky;top:88px}
.side-title{
  font-size:14px;font-weight:700;color:var(--ink);
  letter-spacing:.06em;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--orange)}
.toc li + li{margin-top:4px}
.toc a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;
  color:var(--ink-dim);border-left:2px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.toc a:hover{background:#F2EFF9;color:var(--ink)}
.toc a.is-active{
  color:var(--orange-deep);background:rgba(255,92,43,.08);
  border-left-color:var(--orange);font-weight:600;
}
.mini{display:flex;gap:12px;align-items:center;padding:11px 0;transition:transform .2s}
.mini + .mini{border-top:1px solid var(--light-line)}
.mini:hover{transform:translateX(3px)}
.mini img{width:66px;height:50px;object-fit:cover;border-radius:10px;flex:0 0 auto}
.mini .txt b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5}
.mini .txt span{font-size:12px;color:var(--ink-dim)}
.side-cta{background:linear-gradient(150deg,#221D31,#31264A);border-color:transparent}
.side-cta p{font-size:14px;color:#D9D3EA;margin-bottom:14px;line-height:1.7}

/* ============ 深色段 / 相关推荐 ============ */
.dark-sec{
  position:relative;
  background:
    radial-gradient(90% 70% at 15% 0%, rgba(255,92,43,.12), transparent 60%),
    var(--bg-mid);
  padding:72px 0;
  border-top:1px solid var(--line);
}
.dark-sec::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px, transparent 1px);
  background-size:26px 26px;
}
.sec-head{margin-bottom:32px}
.sec-head h2{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.3px}
.sec-head p{margin-top:8px;color:var(--text-dim);font-size:14.5px}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative;z-index:1}
.rec-card{
  display:block;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform .22s,border-color .22s,box-shadow .22s;
}
.rec-card:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh-dark)}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rec-card .body{padding:18px}
.rec-card .badge-line{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(53,224,200,.12);color:var(--cyan);
}
.badge.gold{background:rgba(243,194,75,.14);color:var(--gold)}
.rec-card h3{font-size:17px;font-weight:650;line-height:1.55;color:var(--text)}
.rec-card p{margin-top:8px;font-size:13.5px;color:var(--text-dim);line-height:1.75}

/* ============ FAQ ============ */
.faq-sec{background:var(--light-bg);color:var(--ink);padding:72px 0}
.faq-sec .sec-head h2{color:var(--ink)}
.faq-sec .sec-head p{color:var(--ink-dim)}
.faq-list{display:grid;gap:12px}
.faq-item{
  background:var(--white);border:1px solid var(--light-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-light);
}
.faq-item summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--orange-deep)}
.faq-item .idx{font-family:var(--font-num);font-size:14px;color:var(--gold);font-weight:700}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;line-height:1;color:var(--orange);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{
  padding:0 20px 20px 54px;font-size:15px;line-height:1.8;
  color:var(--ink-dim);border-top:1px solid var(--light-line);
  padding-top:16px;
}

/* ============ CTA ============ */
.cta-band{
  position:relative;background:var(--bg-deep);
  padding:72px 0;border-top:1px solid var(--line);overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:radial-gradient(rgba(255,255,255,.9) 1px, transparent 1px);
  background-size:24px 24px;
}
.cta-band::after{
  content:"";position:absolute;top:-60px;right:-80px;width:320px;height:320px;
  background:radial-gradient(circle, rgba(255,92,43,.28), transparent 70%);
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:clamp(22px,3.2vw,32px);font-weight:800;letter-spacing:-.3px}
.cta-inner p{margin-top:12px;color:var(--text-dim);font-size:15px}
.cta-btns{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand p{margin-top:16px;font-size:13.5px;color:var(--text-dim);line-height:1.85;max-width:360px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-dim);
  transition:border-color .2s,color .2s,transform .2s;
}
.socials a svg{width:17px;height:17px}
.socials a:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.06em}
.footer-col ul li + li{margin-top:10px}
.footer-col a{font-size:13.5px;color:var(--text-dim);transition:color .2s}
.footer-col a:hover{color:var(--orange)}
.contact-line{font-size:13.5px;color:var(--text-dim);line-height:1.85}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0}
.footer-bottom-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--text-mute);
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:var(--text-dim);transition:color .2s}
.footer-links a:hover{color:var(--cyan)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  background:var(--orange);color:#1A0B04;
  display:grid;place-items:center;cursor:pointer;
  box-shadow:0 10px 24px rgba(255,92,43,.35);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s,transform .25s,visibility .25s;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top svg{width:20px;height:20px}
.to-top:hover{transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-card.sticky-toc{position:static}
  .article-side{order:2}
  .article-main{order:1}
  .toc{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none}
  .toc::-webkit-scrollbar{display:none}
  .toc li + li{margin-top:0}
  .toc a{white-space:nowrap;border-left:0;border:1px solid var(--light-line);border-radius:var(--r-pill);padding:7px 14px}
  .toc a.is-active{border-color:var(--orange)}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .brand-inner{gap:12px}
  .search-wrap{justify-content:flex-end}
  .search{display:none}
  .search-toggle{display:grid}
  .brand-actions .btn{display:none}
  .article-head{padding-top:26px}
  .article-body-wrap{padding:40px 0 56px;margin-top:24px}
  .hero-figure{padding-top:20px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .post-nav{grid-template-columns:minmax(0,1fr)}
  .faq-answer{padding-left:20px}
  .dark-sec,.faq-sec,.cta-band{padding:52px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .cta-btns .btn{width:100%}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .article-content{font-size:16px}
  .article-content h2{font-size:22px}
  .article-content h3{font-size:18px}
  .meta-row{font-size:12.5px;gap:8px 14px}
  .crumb-current{max-width:200px}
  .channel-inner{height:52px}
  .to-top{right:14px;bottom:16px;width:42px;height:42px}
}

/* roulang page: category2 */
/* ===== 设计令牌 ===== */
:root{
  --ink-0:#0C0A16;
  --ink-1:#14111F;
  --surface:#1C1829;
  --surface-2:#241F35;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --orange:#FF5C2B;
  --orange-deep:#E0431A;
  --cyan:#35E0C8;
  --gold:#F3C24B;
  --text:#F2EFF8;
  --muted:#B4AEC6;
  --muted-2:#8C86A3;
  --light-bg:#F6F4FA;
  --light-ink:#1B1726;
  --light-muted:#5B5470;
  --r-xs:8px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-dark:0 12px 32px rgba(0,0,0,.45), 0 0 24px rgba(255,92,43,.12);
  --shadow-light:0 8px 24px rgba(27,23,38,.08);
  --font-sans:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Roboto Mono","Courier New",monospace;
  --maxw:1240px;
  --s1:8px; --s2:16px; --s3:24px; --s4:32px; --s5:48px; --s6:72px;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--ink-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{list-style:none;padding:0;}
::selection{background:rgba(255,92,43,.32);}

/* ===== 容器 ===== */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--orange);color:#1B0A03;padding:10px 18px;border-radius:0 0 12px 0;z-index:999;}
.skip-link:focus{left:0;}

/* ===== 按钮体系 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:650;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--orange);color:#1B0A03;box-shadow:0 8px 20px rgba(255,92,43,.24);}
.btn-primary:hover{background:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,92,43,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;border-color:rgba(53,224,200,.55);color:var(--cyan);}
.btn-outline:hover{background:rgba(53,224,200,.1);border-color:var(--cyan);transform:translateY(-2px);}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(255,255,255,.08);}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600;}
.link-more .arw{transition:transform .2s ease;}
.link-more:hover .arw{transform:translateX(3px);}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.03);
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn svg{width:18px;height:18px;}
.icon-btn:hover{border-color:rgba(53,224,200,.55);background:rgba(53,224,200,.1);}

/* ===== 站点头部 ===== */
.site-header{position:relative;z-index:60;}
.brand-bar{background:rgba(12,10,22,.94);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;gap:var(--s3);height:70px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--gold),var(--orange));
  box-shadow:0 6px 18px rgba(255,92,43,.28);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16.5px;font-weight:800;letter-spacing:.02em;color:#fff;}
.logo-text i{font-style:normal;font-size:10.5px;letter-spacing:.28em;color:var(--muted-2);margin-top:3px;}
.search-wrap{flex:1 1 auto;display:flex;justify-content:center;align-items:center;gap:10px;min-width:0;}
.search{
  position:relative;display:flex;align-items:center;width:100%;max-width:420px;
  height:40px;padding:0 14px 0 16px;border-radius:var(--r-pill);
  background:var(--ink-1);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search:focus-within{border-color:rgba(53,224,200,.6);box-shadow:0 0 0 2px rgba(53,224,200,.18);}
.search input{flex:1 1 auto;min-width:0;background:none;border:0;color:var(--text);font-size:14px;}
.search input::placeholder{color:var(--muted-2);}
.search input:focus{outline:none;}
.search .s-icon{width:18px;height:18px;flex:0 0 auto;}
.search-toggle{display:none;}
.brand-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{display:none;}
.nav-toggle svg{width:20px;height:20px;}

/* ===== 频道行 ===== */
.channel-bar{
  position:sticky;top:0;z-index:55;
  background:rgba(12,10,22,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:padding .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.channel-scroll{position:relative;overflow:hidden;}
.channel-scroll::before,
.channel-scroll::after{
  content:"";position:absolute;top:0;bottom:0;width:24px;pointer-events:none;z-index:2;
}
.channel-scroll::before{left:0;background:linear-gradient(90deg,rgba(12,10,22,.95),rgba(12,10,22,0));}
.channel-scroll::after{right:0;background:linear-gradient(270deg,rgba(12,10,22,.95),rgba(12,10,22,0));}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:56px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  transition:height .25s ease;
}
.channel-inner::-webkit-scrollbar{display:none;}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;color:#C7C1DA;
  background:rgba(255,255,255,.02);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease;
}
.pill:hover{color:#fff;border-color:rgba(255,92,43,.5);background:rgba(255,92,43,.08);}
.pill.active{background:var(--orange);color:#1B0A03;border-color:transparent;box-shadow:0 8px 20px rgba(255,92,43,.3);}
.pill.active:hover{color:#1B0A03;background:var(--orange);transform:none;}
.channel-bar.is-stuck{background:rgba(12,10,22,.88);box-shadow:0 10px 26px rgba(0,0,0,.4);}
.channel-bar.is-stuck .channel-inner{height:48px;}

/* ===== 页头（紧凑型） ===== */
.page-head{
  position:relative;overflow:hidden;
  background:radial-gradient(120% 160% at 88% -20%,rgba(53,224,200,.14),rgba(12,10,22,0) 55%),
             radial-gradient(90% 140% at 8% 120%,rgba(255,92,43,.16),rgba(12,10,22,0) 60%),
             var(--ink-0);
  border-bottom:1px solid var(--line);
}
.starfield::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:44px 44px;opacity:.06;
}
.page-head-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:var(--s5);
  min-height:200px;padding-top:36px;padding-bottom:36px;
}
.breadcrumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted-2);margin-bottom:14px;}
.breadcrumbs a{color:var(--muted);}
.breadcrumbs a:hover{color:var(--cyan);}
.breadcrumbs .sep{opacity:.5;}
.breadcrumbs .cur{color:var(--muted-2);}
.page-head h1{
  font-size:clamp(28px,4.2vw,42px);font-weight:800;letter-spacing:-.5px;line-height:1.18;color:#fff;
}
.page-head-sub{margin-top:12px;font-size:15px;color:var(--muted);max-width:34em;}
.page-head-art{flex:0 0 auto;width:230px;opacity:.9;}
.page-head-art svg{width:100%;height:auto;display:block;}

/* ===== 数据条 ===== */
.hero-stats{padding:var(--s4) 0 var(--s1);}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;}
.stat-card{
  flex:1 1 200px;min-width:0;
  padding:18px 20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:6px;
}
.stat-card strong{font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--gold);letter-spacing:.02em;}
.stat-card span{font-size:13px;color:var(--muted);}

/* ===== 板块通用 ===== */
.section{padding:var(--s6) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s3);margin-bottom:var(--s4);}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.3px;color:#fff;}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--muted);}
.section-light{background:var(--light-bg);color:var(--light-ink);}
.section-light .section-head h2{color:var(--light-ink);}
.section-light .section-head p{color:var(--light-muted);}

/* ===== 指南布局 ===== */
.guide-layout{display:flex;flex-wrap:wrap;align-items:flex-start;gap:var(--s5);}
.guide-layout > .toc-col{flex:0 0 258px;max-width:258px;min-width:0;}
.guide-layout > .list-col{flex:1 1 0;min-width:0;}
.toc{
  position:sticky;top:92px;
  padding:22px 20px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  box-shadow:0 10px 26px rgba(0,0,0,.32);
}
.toc h3{font-size:13px;letter-spacing:.16em;color:var(--muted-2);font-weight:700;text-transform:uppercase;margin-bottom:14px;}
.toc ol{display:flex;flex-direction:column;gap:4px;}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;
  transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.toc a .n{font-family:var(--font-mono);font-size:12px;color:var(--muted-2);}
.toc a:hover{color:#fff;background:rgba(255,255,255,.05);}
.toc a.current{color:var(--orange);background:rgba(255,92,43,.1);border-left-color:var(--orange);}
.toc a.current .n{color:var(--orange);}

/* ===== 编号条目 ===== */
.guide-list{display:flex;flex-direction:column;}
.guide-item{
  display:flex;align-items:center;gap:var(--s4);
  padding:var(--s4) 0;border-bottom:1px solid var(--line);
  scroll-margin-top:104px;
}
.guide-item:first-child{padding-top:0;}
.guide-item:last-child{border-bottom:0;padding-bottom:0;}
.guide-media{flex:0 0 300px;max-width:300px;position:relative;border-radius:var(--r-md);overflow:hidden;background:var(--surface);}
.guide-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.guide-item:hover .guide-media img{transform:scale(1.03);}
.guide-item:nth-child(even) .guide-media{order:2;}
.guide-body{flex:1 1 0;min-width:0;display:flex;flex-direction:column;gap:12px;}
.guide-num{
  font-family:var(--font-mono);font-size:30px;font-weight:700;line-height:1;
  color:var(--gold);letter-spacing:.06em;
}
.guide-body h3{font-size:20px;font-weight:650;line-height:1.45;color:#fff;}
.guide-body p{font-size:15px;line-height:1.9;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.pill-tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;color:var(--cyan);background:rgba(53,224,200,.12);
}
.pill-tag.gold{color:var(--gold);background:rgba(243,194,75,.14);}
.pill-tag.orange{color:#FF9B77;background:rgba(255,92,43,.16);}
.guide-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:4px;}
.guide-foot .link-more{color:var(--cyan);}
.guide-arrow{
  flex:0 0 auto;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line-strong);display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);transition:transform .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.guide-arrow svg{width:16px;height:16px;}
.guide-item:hover .guide-arrow{border-color:var(--orange);color:var(--orange);background:rgba(255,92,43,.1);transform:translateX(3px);}

/* ===== FAQ（浅底段） ===== */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{border-top:1px solid rgba(27,23,38,.12);}
.faq-item{border-bottom:1px solid rgba(27,23,38,.12);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  min-height:60px;padding:14px 4px;font-size:17px;font-weight:650;color:var(--light-ink);
}
.faq-q .idx{font-family:var(--font-mono);font-size:14px;color:#B98217;flex:0 0 auto;}
.faq-q .qt{flex:1 1 auto;}
.faq-q .sign{
  flex:0 0 auto;width:24px;height:24px;position:relative;transition:transform .22s ease;
}
.faq-q .sign::before,.faq-q .sign::after{
  content:"";position:absolute;background:#8A8299;border-radius:2px;
}
.faq-q .sign::before{left:4px;right:4px;top:11px;height:2px;}
.faq-q .sign::after{top:4px;bottom:4px;left:11px;width:2px;}
.faq-item.open .faq-q .sign{transform:rotate(45deg);}
.faq-item.open .faq-q .sign::after{background:var(--orange-deep);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease;}
.faq-a p{padding:0 4px 0 34px;font-size:15px;line-height:1.85;color:var(--light-muted);}
.faq-item.open .faq-a{max-height:320px;}
.faq-item.open .faq-a p{padding-bottom:22px;}

/* ===== CTA 通栏 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(12,10,22,.88),rgba(12,10,22,.96)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.cta-inner{position:relative;z-index:2;text-align:center;padding:var(--s6) 0;}
.cta-inner h2{font-size:clamp(24px,3.2vw,34px);font-weight:700;color:#fff;letter-spacing:-.3px;}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-1);border-top:1px solid var(--line);color:var(--muted);}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:var(--s5);
  padding-top:var(--s5);padding-bottom:var(--s4);
}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted-2);max-width:34em;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.socials a svg{width:18px;height:18px;}
.socials a:hover{border-color:rgba(255,92,43,.6);color:var(--orange);background:rgba(255,92,43,.1);}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--muted-2);}
.footer-col a:hover{color:var(--cyan);}
.contact-line{font-size:13.5px;line-height:1.85;color:var(--muted-2);}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0;background:rgba(0,0,0,.2);}
.footer-bottom-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted-2);}
.footer-links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-links a{font-size:13px;color:var(--muted-2);}
.footer-links a:hover{color:var(--cyan);}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .guide-layout{gap:var(--s4);}
  .guide-layout > .toc-col{flex:1 1 100%;max-width:none;}
  .toc{position:static;padding:16px 14px;box-shadow:none;}
  .toc h3{margin-bottom:12px;}
  .toc ol{flex-direction:row;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px;}
  .toc ol::-webkit-scrollbar{display:none;}
  .toc a{
    flex:0 0 auto;border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);
    padding:7px 14px;font-size:13px;white-space:nowrap;
  }
  .toc a.current{border-color:rgba(255,92,43,.5);background:rgba(255,92,43,.12);color:#FF8C60;}
  .page-head-art{width:170px;}
  .page-head-inner{min-height:180px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--s4);}
}

@media screen and (max-width:767px){
  .brand-inner{height:62px;gap:12px;}
  .logo-text i{letter-spacing:.2em;}
  .search{display:none;}
  .search-toggle{display:inline-flex;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .channel-bar.is-open{display:block;}
  .page-head-inner{flex-direction:column;align-items:flex-start;gap:var(--s3);min-height:0;padding-top:30px;padding-bottom:30px;}
  .page-head-art{width:140px;align-self:flex-end;opacity:.7;}
  .guide-item{flex-direction:column;align-items:flex-start;gap:20px;}
  .guide-item:nth-child(even) .guide-media{order:0;}
  .guide-media{flex:1 1 auto;max-width:100%;width:100%;}
  .guide-body h3{font-size:19px;}
  .section{padding:var(--s5) 0;}
  .stat-card{flex:1 1 100%;}
}

@media screen and (max-width:575px){
  .container{padding:0 16px;}
  body{font-size:15.5px;}
  .page-head h1{font-size:26px;}
  .btn{height:42px;padding:0 20px;font-size:14px;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:var(--s4);}
  .guide-num{font-size:26px;}
}

/* roulang page: category1 */
:root{
  --bg-1:#0C0A16;
  --bg-2:#14111F;
  --surface:#1C1829;
  --surface-2:#221D33;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.18);
  --text:#F2EFF8;
  --text-dim:#A7A1BC;
  --text-mute:#7C7691;
  --orange:#FF5C2B;
  --orange-deep:#E0431A;
  --cyan:#35E0C8;
  --gold:#F3C24B;
  --light:#F6F4FA;
  --light-2:#EDEAF5;
  --ink:#1B1726;
  --ink-dim:#5A5372;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:22px;
  --r-pill:999px;
  --shadow-dark:0 12px 32px rgba(0,0,0,.45), 0 0 24px rgba(255,92,43,.12);
  --shadow-light:0 8px 24px rgba(27,23,38,.08);
  --container:1240px;
  --font-sans:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border-style:none}
a{color:inherit;text-decoration:none;background-color:transparent;transition:color .2s ease,border-color .2s ease}
button{font-family:inherit;font-size:inherit;line-height:inherit;cursor:pointer;border:0;background:none;color:inherit;padding:0;margin:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.22;font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

h1{font-size:clamp(30px,5vw,54px);font-weight:800;letter-spacing:-.5px;line-height:1.15}
h2{font-size:clamp(22px,2.8vw,32px);font-weight:700;line-height:1.25}
h3{font-size:19px;font-weight:600;line-height:1.4}
h4{font-size:15px;font-weight:700}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.mono{font-family:var(--font-mono);letter-spacing:.04em}
.show-for-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- header ---------- */
.site-header{position:relative;z-index:60}
.brand-bar{background:linear-gradient(180deg,#100D1C 0%,#0C0A16 100%);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--orange),var(--gold));
  display:grid;place-items:center;
  box-shadow:0 6px 16px rgba(255,92,43,.28);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.02em}
.logo-text i{font-size:10.5px;font-style:normal;color:var(--text-dim);letter-spacing:.24em}

.search-wrap{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.search{position:relative;display:flex;align-items:center;width:100%;max-width:420px}
.search input{
  width:100%;height:40px;margin:0;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text);font-size:14px;
  padding:0 42px 0 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search input::placeholder{color:var(--text-mute)}
.search input:focus{outline:none;border-color:var(--cyan);background:rgba(255,255,255,.07);box-shadow:0 0 0 2px rgba(53,224,200,.22)}
.s-icon{position:absolute;right:14px;width:17px;height:17px;pointer-events:none}

.brand-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:none;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{border-color:var(--cyan);background:rgba(53,224,200,.1)}

.channel-bar{
  position:sticky;top:0;z-index:55;
  background:rgba(12,10,22,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-compact .channel-bar{background:rgba(12,10,22,.96);border-bottom-color:var(--line-strong)}
.channel-scroll{
  position:relative;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-scroll::-webkit-scrollbar{display:none}
.channel-inner{
  display:flex;align-items:center;gap:10px;
  height:56px;white-space:nowrap;
  transition:height .25s ease;
}
.site-header.is-compact .channel-inner{height:48px}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:34px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.02);
  color:var(--text-dim);
  font-size:13.5px;line-height:1;font-weight:500;
  flex:0 0 auto;
  transition:color .22s ease,border-color .22s ease,background .22s ease,box-shadow .22s ease;
}
.pill:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.06)}
.pill.active,.pill.is-active{
  background:var(--orange);border-color:var(--orange);
  color:#190A03;font-weight:700;
  box-shadow:0 6px 18px rgba(255,92,43,.28);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--orange);color:#190A03;box-shadow:0 8px 20px rgba(255,92,43,.26)}
.btn-primary:hover{background:#FF7247;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,92,43,.36)}
.btn-ghost{border:1px solid rgba(53,224,200,.5);color:var(--cyan);background:rgba(53,224,200,0)}
.btn-ghost:hover{background:rgba(53,224,200,.1);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn.is-disabled,.btn[disabled]{opacity:.4;box-shadow:none;pointer-events:none;transform:none}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600}
.link-arrow svg{width:16px;height:16px;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- category hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--bg-1);display:flex;align-items:center;min-height:240px}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.38;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(12,10,22,.96) 0%,rgba(12,10,22,.78) 52%,rgba(12,10,22,.4) 100%);
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;top:-60px;width:340px;height:460px;z-index:1;
  background:linear-gradient(180deg,var(--orange),var(--orange-deep));
  transform:rotate(18deg);opacity:.16;
}
.cat-hero-inner{position:relative;z-index:2;padding:48px 20px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);margin-bottom:14px}
.crumbs a{color:var(--text-dim)}
.crumbs a:hover{color:var(--cyan)}
.crumbs em{font-style:normal;color:var(--text-mute)}
.cat-hero h1{max-width:820px}
.cat-hero-sub{margin-top:14px;font-size:15.5px;color:var(--text-dim);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags li{
  font-size:12.5px;line-height:1;padding:7px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-dim);
}

/* ---------- filter bar ---------- */
.filter-bar{
  position:sticky;top:52px;z-index:50;
  background:rgba(16,13,28,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.filter-scroll{
  display:flex;align-items:center;gap:10px;
  padding-top:12px;padding-bottom:12px;
  overflow-x:auto;scrollbar-width:none;white-space:nowrap;
}
.filter-scroll::-webkit-scrollbar{display:none}
.filter-label{font-size:12.5px;color:var(--text-mute);flex:0 0 auto;margin-right:2px}

/* ---------- sections ---------- */
.sec{padding:72px 0;scroll-margin-top:120px}
.sec-light{background:var(--light);color:var(--ink)}
.sec-white{background:#FFFFFF;color:var(--ink)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.sec-sub{margin-top:10px;font-size:14.5px;color:var(--text-dim)}
.sec-light .sec-sub,.sec-white .sec-sub{color:var(--ink-dim)}
.sec-count{font-size:13px;color:var(--text-mute);font-family:var(--font-mono)}
.sec-light .sec-count,.sec-white .sec-count{color:var(--ink-dim)}

/* ---------- clip grid ---------- */
.clip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.clip-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.clip-card:hover{transform:translateY(-6px);border-color:rgba(255,92,43,.6);box-shadow:var(--shadow-dark)}
.clip-media{position:relative;aspect-ratio:3/4;overflow:hidden;background:var(--surface-2)}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.clip-card:hover .clip-media img{transform:scale(1.05)}
.clip-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,10,22,0) 42%,rgba(12,10,22,.86) 100%);
}
.clip-time{
  position:absolute;right:10px;bottom:10px;z-index:3;
  background:rgba(0,0,0,.62);color:#fff;
  font-family:var(--font-mono);font-size:12px;
  padding:2px 8px;border-radius:6px;letter-spacing:.04em;
}
.clip-badge{
  position:absolute;left:10px;top:10px;z-index:3;
  font-size:11.5px;line-height:1;padding:6px 10px;border-radius:var(--r-pill);
  background:rgba(255,92,43,.9);color:#190A03;font-weight:700;
}
.clip-play{
  position:absolute;left:50%;top:50%;z-index:3;
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,92,43,.92);
  display:grid;place-items:center;
  transform:translate(-50%,-50%) scale(.9);
  opacity:0;
  transition:opacity .28s ease,transform .28s ease;
  box-shadow:0 10px 26px rgba(255,92,43,.35);
}
.clip-play svg{width:20px;height:20px;fill:#190A03;margin-left:2px}
.clip-card:hover .clip-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
@media (hover:none){
  .clip-play{opacity:1;transform:translate(-50%,-50%) scale(1);width:44px;height:44px}
  .clip-card:hover{transform:none}
}
.clip-body{padding:16px 18px 20px}
.clip-title{font-size:16.5px;font-weight:600;line-height:1.45}
.clip-meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap}
.meta-text{font-size:12.5px;color:var(--text-mute);font-family:var(--font-mono)}

.tag{
  display:inline-flex;align-items:center;
  height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;font-weight:600;white-space:nowrap;
}
.tag-orange{background:rgba(255,92,43,.14);color:#FF8A5F}
.tag-cyan{background:rgba(53,224,200,.14);color:var(--cyan)}
.tag-gold{background:rgba(243,194,75,.16);color:var(--gold)}
.sec-light .tag-orange,.sec-white .tag-orange{background:rgba(224,67,26,.12);color:#C9380F}
.sec-light .tag-cyan,.sec-white .tag-cyan{background:rgba(14,124,108,.12);color:#0E7C6C}
.sec-light .tag-gold,.sec-white .tag-gold{background:rgba(180,132,10,.14);color:#8A6408}

/* ---------- pager ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:44px;flex-wrap:wrap}
.pager-btn{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid var(--line);
  font-size:13.5px;color:var(--text-dim);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.pager-btn:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.pager-btn.is-disabled{opacity:.35;pointer-events:none}
.pager-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);
  font-size:13.5px;font-family:var(--font-mono);color:var(--text-dim);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.pager-num:hover{color:var(--text);border-color:var(--line-strong)}
.pager-num.is-current{background:var(--orange);border-color:var(--orange);color:#190A03;font-weight:700}
.pager-gap{color:var(--text-mute);font-size:13px}

/* ---------- stats ---------- */
.stats{margin-left:-12px;margin-right:-12px}
.stats > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.stat{
  height:100%;
  background:#FFFFFF;
  border:1px solid rgba(27,23,38,.08);
  border-radius:var(--r-md);
  padding:24px 22px;
  box-shadow:var(--shadow-light);
  transition:transform .22s ease,box-shadow .22s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(27,23,38,.12)}
.stat-num{font-family:var(--font-mono);font-size:28px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.stat-num span{font-size:15px;margin-left:2px;color:var(--ink-dim)}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--ink-dim)}
.stat-note{margin-top:10px;font-size:12.5px;color:#8A8399;line-height:1.7}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{
  position:relative;
  padding:28px 24px;
  border-radius:var(--r-md);
  background:var(--surface);
  border:1px solid var(--line);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.step:hover{border-color:rgba(53,224,200,.4);transform:translateY(-4px);box-shadow:0 14px 32px rgba(0,0,0,.4)}
.step-num{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--gold);line-height:1}
.step h3{margin-top:14px}
.step p{margin-top:10px;font-size:14.5px;color:var(--text-dim);line-height:1.85}

/* ---------- update list ---------- */
.update-list{border-top:1px solid rgba(27,23,38,.1)}
.update-item{
  display:flex;align-items:center;gap:14px;
  padding:16px 0;
  border-bottom:1px solid rgba(27,23,38,.1);
  flex-wrap:wrap;
}
.up-date{font-family:var(--font-mono);font-size:13px;color:#8A6408;flex:0 0 auto}
.up-title{font-size:15.5px;font-weight:600;color:var(--ink);flex:1 1 auto;min-width:180px}
.up-time{font-size:12.5px;color:var(--ink-dim);font-family:var(--font-mono)}
.up-title:hover{color:#C9380F}

/* ---------- faq ---------- */
.faq-list{max-width:880px}
.faq-item{border-bottom:1px solid rgba(27,23,38,.1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  min-height:60px;text-align:left;
  padding:12px 0;font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-idx{font-family:var(--font-mono);font-size:14px;color:#B07A0A;flex:0 0 auto;min-width:26px}
.faq-icon{position:relative;margin-left:auto;width:22px;height:22px;flex:0 0 auto;color:#8A8399;transition:transform .22s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--orange-deep)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-item.is-open .faq-a{max-height:340px;border-top:1px solid rgba(27,23,38,.08)}
.faq-a p{padding:16px 0 20px 40px;font-size:15.5px;line-height:1.8;color:var(--ink-dim)}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--bg-2);padding:84px 0;text-align:center;scroll-margin-top:120px}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:34px 34px;opacity:.06;
}
.cta-band::after{
  content:"";position:absolute;left:50%;top:-120px;transform:translateX(-50%);
  width:520px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,43,.22),transparent 70%);
}
.cta-inner{position:relative;z-index:2}
.cta-band h2{max-width:720px;margin:0 auto}
.cta-sub{margin-top:14px;font-size:15px;color:var(--text-dim)}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:#0A0813;border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px}
.footer-brand p{color:var(--text-dim);font-size:14px;line-height:1.85;margin-top:16px;max-width:380px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-dim);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.socials a:hover{color:var(--orange);border-color:var(--orange);background:rgba(255,92,43,.08)}
.socials svg{width:18px;height:18px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:var(--text-dim);font-size:14px}
.footer-col a:hover{color:var(--orange)}
.contact-line{color:var(--text-dim);font-size:14px;line-height:1.85}
.footer-bottom{border-top:1px solid var(--line);background:#08070F;padding:22px 0}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-mute);
}
.footer-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-links a{color:var(--text-mute)}
.footer-links a:hover{color:var(--orange)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .clip-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .steps{grid-template-columns:1fr;gap:18px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec{padding:60px 0}
}
@media (max-width:767px){
  .brand-inner{height:64px;gap:12px}
  .search-wrap{display:none}
  .icon-btn{display:grid}
  .cat-hero{min-height:180px}
  .cat-hero-inner{padding:36px 20px}
  .cat-hero-sub{font-size:14.5px}
  .filter-bar{top:48px}
  .sec{padding:48px 0}
  .sec-head{margin-bottom:24px}
  .cta-band{padding:60px 0}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .clip-grid{grid-template-columns:1fr;gap:16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .logo-text b{font-size:16px}
  .hero-tags li{font-size:12px;padding:6px 10px}
  .faq-a p{padding-left:0}
}