/* roulang page: index */
:root{
  --ink:#111213;
  --ink-70:#4A4C4F;
  --ink-40:#9A9CA0;
  --paper:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E2DD;
  --accent:#FF4D14;
  --accent-ink:#1B0E06;
  --lime:#C6F24E;
  --radius-card:16px;
  --radius-media:12px;
  --radius-field:10px;
  --radius-pill:9999px;
  --shadow-rest:0 1px 2px rgba(17,18,19,.04);
  --shadow-hover:0 20px 40px -24px rgba(17,18,19,.28);
  --ease:cubic-bezier(.16,1,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter","Helvetica Neue","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

.section{padding-top:64px;padding-bottom:64px}
@media (min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}
.section-tight{padding-top:48px;padding-bottom:48px}
@media (min-width:1024px){.section-tight{padding-top:64px;padding-bottom:64px}}

.h1-hero{
  font-size:clamp(40px,6vw,72px);
  font-weight:800;
  line-height:1.05;
  letter-spacing:-.02em;
}
.h2-block{font-size:clamp(26px,3.2vw,36px);font-weight:700;line-height:1.2;letter-spacing:-.01em}
.h3-card{font-size:20px;font-weight:700;line-height:1.35}
.h4-mini{font-size:17px;font-weight:600;line-height:1.5}
.lead{font-size:17px;color:var(--ink-70);max-width:68ch}
.small{font-size:14px;color:var(--ink-70)}
.tiny{font-size:13px;color:var(--ink-40)}

.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-40);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(246,245,242,.96);
  border-bottom:1px solid var(--line);
  transition:backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{backdrop-filter:saturate(140%) blur(8px)}
.nav-top{height:66px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:baseline;gap:10px;flex:0 0 auto}
.brand-mark{
  font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;
}
.brand-sub{font-size:12px;color:var(--ink-40);white-space:nowrap;letter-spacing:.08em}
.nav-search{
  display:none;flex:1 1 auto;max-width:420px;position:relative;
}
.nav-search input{
  width:100%;height:42px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:var(--surface);
  padding:0 18px 0 42px;font-size:15px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-40)}
.nav-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(255,77,20,.16)}
.nav-search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:17px;height:17px;stroke:var(--ink-40);fill:none;stroke-width:1.8}
@media (min-width:1024px){.nav-search{display:block}}

.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-weight:700;cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .12s var(--ease),box-shadow .2s var(--ease);
  min-height:44px;
}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-primary{background:var(--accent);color:#fff;padding:0 24px;height:48px}
.btn-primary:hover{background:#E94510}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);padding:0 24px;height:48px}
.btn-outline:hover{background:var(--ink);color:var(--paper)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;padding:0 24px;height:48px}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

.nav-burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--surface);cursor:pointer;
}
.nav-burger span{display:block;width:17px;height:1.6px;background:var(--ink);position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:var(--ink)}
.nav-burger span::before{top:-5.5px}
.nav-burger span::after{top:5.5px}
@media (min-width:1024px){.nav-burger{display:none}}

.nav-tabs{border-top:1px solid var(--line);height:52px;display:flex;align-items:center}
.tabs-scroll{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scroll-snap-type:x proximity;
  -ms-overflow-style:none;scrollbar-width:none;
  padding:4px 0;
}
.tabs-scroll::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-70);background:transparent;
  white-space:nowrap;transition:all .2s var(--ease);
}
.tab:hover{border-color:var(--ink);color:var(--ink)}
.tab.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}

.drawer{
  position:fixed;inset:0;z-index:60;background:var(--paper);
  transform:translateY(-100%);opacity:0;pointer-events:none;
  transition:transform .35s var(--ease),opacity .3s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-head{height:66px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 20px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-pill);
  background:var(--surface);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-body{padding:24px 20px;display:flex;flex-direction:column;gap:10px;overflow-y:auto}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius-card);
  font-size:17px;font-weight:600;background:var(--surface);
}
.drawer-link.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.drawer-foot{padding:20px;border-top:1px solid var(--line);margin-top:auto}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--ink);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(17,18,19,.93) 0%,rgba(17,18,19,.78) 45%,rgba(17,18,19,.56) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:56px}
@media (min-width:1024px){.hero-inner{padding-top:120px;padding-bottom:96px}}
.hero-kicker{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;color:rgba(255,255,255,.72);font-size:14px;font-weight:600}
.hero-kicker .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);display:inline-block}
.hero-title{color:#fff;margin-top:22px;max-width:15ch}
.hero-sub{margin-top:20px;color:rgba(255,255,255,.8);font-size:18px;max-width:34ch;line-height:1.65}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{position:relative;margin-top:40px}
@media (min-width:1024px){.hero-visual{margin-top:0}}
.hero-figure{
  border-radius:var(--radius-media);overflow:hidden;
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 30px 60px -40px rgba(0,0,0,.9);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  margin-top:-38px;margin-left:16px;margin-right:16px;position:relative;z-index:3;
  background:var(--surface);border-radius:var(--radius-card);border:1px solid var(--line);
  padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  box-shadow:var(--shadow-hover);
}
.hero-float .label{font-size:13px;color:var(--ink-40)}
.hero-float .value{font-size:24px;font-weight:800;line-height:1.2}
.hero-float .value em{font-style:normal;background:var(--lime);padding:0 6px;border-radius:6px}

.hero-stats{
  position:relative;z-index:2;margin-top:56px;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:28px;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
@media (min-width:1024px){.hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:88px}}
.hero-stats .n{font-size:32px;font-weight:700;color:#fff;line-height:1.1}
.hero-stats .l{font-size:13px;color:rgba(255,255,255,.5);margin-top:6px}

/* ---------- Ticker ---------- */
.ticker{background:var(--ink);color:#fff;height:auto;padding:11px 0;overflow:hidden}
.ticker-track{display:flex;gap:36px;white-space:nowrap;animation:tickerMove 34s linear infinite}
.ticker-track span{font-size:14px;color:rgba(255,255,255,.78);display:inline-flex;align-items:center;gap:36px}
.ticker-track span::after{content:"";width:5px;height:5px;background:var(--lime);display:inline-block;border-radius:50%}
@keyframes tickerMove{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.ticker-track{animation:none}}

/* ---------- 通用标题块 ---------- */
.block-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.block-head p{color:var(--ink-70);font-size:16px;max-width:56ch;margin-top:12px}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--ink);
  position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);
  transition:width .24s var(--ease);
}
.link-arrow:hover::after{width:100%}
.link-arrow .arw{transition:transform .24s var(--ease)}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ---------- 时间线 ---------- */
.timeline{position:relative}
.timeline::before{
  content:"";position:absolute;top:8px;bottom:8px;left:24px;width:1px;background:var(--line);
}
@media (min-width:768px){.timeline::before{left:88px}}
.tl-item{position:relative;display:grid;grid-template-columns:1fr;gap:8px;padding:20px 0 20px 52px}
@media (min-width:768px){
  .tl-item{grid-template-columns:88px 1fr;gap:24px;padding:24px 0 24px 0}
}
.tl-item + .tl-item{border-top:1px solid var(--line)}
.tl-time{font-size:15px;font-weight:700;color:var(--ink-70)}
@media (min-width:768px){.tl-time{padding-left:0;text-align:left}}
.tl-dot{
  position:absolute;left:20px;top:26px;width:9px;height:9px;border-radius:50%;
  background:var(--paper);border:1px solid var(--ink-40);
}
@media (min-width:768px){.tl-dot{left:84px}}
.tl-item.is-now .tl-dot{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 0 rgba(255,77,20,.5);animation:pulseDot 2s var(--ease) infinite}
@keyframes pulseDot{
  0%{box-shadow:0 0 0 0 rgba(255,77,20,.45)}
  70%{box-shadow:0 0 0 12px rgba(255,77,20,0)}
  100%{box-shadow:0 0 0 0 rgba(255,77,20,0)}
}
@media (prefers-reduced-motion:reduce){.tl-item.is-now .tl-dot{animation:none}}
.tl-body h3{font-size:20px;font-weight:700;line-height:1.35}
.tl-meta{margin-top:8px;font-size:14px;color:var(--ink-70)}
.tl-tags{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px}
.tl-note{margin-top:10px;font-size:14px;color:var(--ink-40);max-width:62ch}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:13px;font-weight:600;line-height:1;
  border:1px solid var(--line);color:var(--ink-70);background:transparent;white-space:nowrap;
}
.badge-solid{background:var(--ink);color:var(--lime);border-color:var(--ink)}
.badge-accent{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}

/* ---------- 嘉宾 / 亮点 ---------- */
.speaker-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-rest);transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.speaker-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.media-wrap{position:relative;overflow:hidden}
.media-wrap img{width:100%;object-fit:cover;transition:transform .4s var(--ease)}
.media-wrap::after{content:"";position:absolute;inset:0;background:rgba(17,18,19,0);transition:background .4s var(--ease)}
.speaker-card:hover .media-wrap img,.hl-card:hover .media-wrap img{transform:scale(1.03)}
.speaker-card:hover .media-wrap::after,.hl-card:hover .media-wrap::after{background:rgba(17,18,19,.18)}
.speaker-body{padding:22px 24px 26px}
.speaker-name{font-size:22px;font-weight:700;letter-spacing:-.01em}
.speaker-role{font-size:14px;color:var(--ink-70);margin-top:6px}

.hl-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.hl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.hl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.hl-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.hl-num{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--accent)}
.hl-card h3{font-size:17px;font-weight:700;line-height:1.45}
.hl-card p{font-size:14px;color:var(--ink-70)}
.hl-card .media-wrap{border-radius:var(--radius-media);margin:-8px -8px 4px}
.hl-card .media-wrap img{aspect-ratio:16/9}

/* ---------- 票种表 ---------- */
.ticket-wrap{
  border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);overflow:hidden;
}
.ticket-table{width:100%;border-collapse:collapse}
.ticket-table th,.ticket-table td{
  padding:16px 18px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
.ticket-table thead th{background:var(--surface);vertical-align:top;border-bottom:1px solid var(--line)}
.ticket-table tbody tr{transition:background-color .2s var(--ease)}
.ticket-table tbody tr:hover{background:#FAF9F6}
.ticket-table tbody tr:last-child td{border-bottom:none}
.ticket-name{font-size:16px;font-weight:700}
.ticket-price{font-size:32px;font-weight:800;line-height:1.15;margin-top:10px;letter-spacing:-.02em}
.ticket-price small{font-size:14px;font-weight:600;color:var(--ink-40);margin-left:4px}
.ticket-col-rec{position:relative}
.ticket-col-rec::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent)}
.ticket-head-flex{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.row-label{color:var(--ink-70);font-weight:600}
.mark-yes{color:var(--ink);font-weight:600}
.mark-no{color:var(--ink-40)}

.ticket-cards{display:grid;grid-template-columns:1fr;gap:16px}
.ticket-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;position:relative;
}
.ticket-card.is-rec{border-top:3px solid var(--accent)}
.ticket-card dl{margin:18px 0 0;border-top:1px solid var(--line)}
.ticket-card dl > div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.ticket-card dt{color:var(--ink-40)}
.ticket-card dd{margin:0;font-weight:600;text-align:right}

/* ---------- 资讯列表 ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:1fr;gap:12px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
@media (min-width:768px){
  .news-row{grid-template-columns:64px 1fr auto;align-items:center;gap:28px;min-height:96px;padding:24px 0}
}
.news-date{display:flex;align-items:baseline;gap:6px}
.news-date .d{font-size:24px;font-weight:700;line-height:1}
.news-date .m{font-size:12px;color:var(--ink-40);letter-spacing:.08em}
.news-main h3,.news-main .news-title{
  font-size:17px;font-weight:600;line-height:1.5;
}
.news-main .news-title.is-lead{font-size:20px;font-weight:700;letter-spacing:-.01em}
.news-title a{
  position:relative;display:inline;
  background-image:linear-gradient(var(--accent),var(--accent));
  background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;
  transition:background-size .24s var(--ease);
}
.news-title a:hover{background-size:100% 1px}
.news-sum{margin-top:8px;font-size:14px;color:var(--ink-70);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.news-side{display:flex;align-items:center;gap:14px;color:var(--ink-40);font-size:14px}
.news-side .arw{transition:transform .24s var(--ease)}
.news-row:hover .news-side .arw{transform:translateX(4px);color:var(--accent)}
.news-side a{display:inline-flex;align-items:center;gap:8px;color:var(--ink-70)}
.news-side a:hover{color:var(--ink)}

.empty-state{
  max-width:320px;margin:0 auto;text-align:center;padding:52px 20px;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.empty-state svg{width:40px;height:40px;stroke:var(--ink-40);fill:none;stroke-width:1.5}
.empty-state p{font-size:16px;font-weight:600}
.empty-state span{font-size:14px;color:var(--ink-70)}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 44px 22px 0;
  font-size:17px;font-weight:600;line-height:1.5;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:8px;top:50%;
  width:13px;height:13px;transform:translateY(-50%);
  background:
    linear-gradient(var(--ink),var(--ink)) center/13px 1.5px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/1.5px 13px no-repeat;
  transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(90deg)}
.faq-item[open] summary::before{content:"";position:absolute;top:0;left:0;width:44px;height:1px;background:var(--accent)}
.faq-answer{padding:0 44px 24px 0;font-size:15px;color:var(--ink-70);max-width:70ch}

/* ---------- 表单 ---------- */
.signup-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:1024px){.signup-grid{grid-template-columns:1fr 1fr;gap:64px;align-items:start}}
.sig-list{display:flex;flex-direction:column;gap:20px;margin-top:32px}
.sig-list li{display:grid;grid-template-columns:44px 1fr;gap:16px}
.sig-list .no{font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.sig-list h3{font-size:17px;font-weight:700}
.sig-list p{font-size:14px;color:var(--ink-70);margin-top:6px}

.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px}
@media (min-width:1024px){.form-card{padding:32px}}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--ink-70);margin-bottom:8px;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;height:48px;border-radius:var(--radius-field);
  border:1px solid var(--line);background:var(--surface);
  padding:0 14px;font-size:16px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;resize:vertical;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);box-shadow:0 0 0 3px rgba(255,77,20,.16);
}
.field-row{display:grid;grid-template-columns:1fr;gap:0}
@media (min-width:640px){.field-row{grid-template-columns:1fr 1fr;gap:0 16px}}
.form-note{font-size:12px;color:var(--ink-40);margin-top:14px;line-height:1.7}

/* ---------- CTA 深色条 ---------- */
.cta-bar{background:var(--ink);color:#fff;border-radius:var(--radius-card);padding:28px 26px}
@media (min-width:1024px){.cta-bar{padding:32px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px}}
.cta-bar h2{font-size:22px;font-weight:700;line-height:1.4}
.cta-bar p{font-size:14px;color:rgba(255,255,255,.66);margin-top:8px}
.cta-bar .cta-action{margin-top:22px}
@media (min-width:1024px){.cta-bar .cta-action{margin-top:0;flex:0 0 auto}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);margin-top:0}
.footer-top{display:grid;grid-template-columns:1fr;gap:36px;padding:56px 0 40px;border-top:1px solid rgba(255,255,255,.12)}
@media (min-width:768px){.footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-top{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}}
.footer-brand{font-size:20px;font-weight:800;letter-spacing:-.01em}
.footer-brand span{font-size:12px;font-weight:500;color:rgba(255,255,255,.5);letter-spacing:.08em;margin-left:8px}
.footer-desc{font-size:14px;color:rgba(255,255,255,.62);margin-top:16px;max-width:38ch;line-height:1.8}
.footer-h{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.footer-contact{font-size:14px;color:rgba(255,255,255,.62);line-height:2}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 32px;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 进场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}
::selection{background:var(--accent);color:#fff}

/* roulang page: article */
:root{
    --ink:#111213; --ink-70:#4A4C4F; --ink-40:#9A9CA0;
    --paper:#F6F5F2; --surface:#FFFFFF; --line:#E4E2DD;
    --accent:#FF4D14; --accent-hover:#E64410; --accent-ink:#1B0E06; --lime:#C6F24E;
    --radius-card:16px; --container:1240px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;background:var(--paper);color:var(--ink);
    font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}
  .tnum{font-variant-numeric:tabular-nums;font-family:"Inter","Helvetica Neue",system-ui,sans-serif}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  @media (min-width:1024px){ .container{padding:0 32px} }
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

  /* ---------- 顶部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:50;background:rgba(246,245,242,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .nav-top{display:flex;align-items:center;gap:16px;height:72px}
  .brand{display:inline-flex;align-items:baseline;gap:8px;font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
  .brand span{font-size:12px;font-weight:600;color:var(--ink-40);letter-spacing:.04em}
  .brand:hover span{color:var(--accent)}
  .nav-search{display:none;flex:1;max-width:360px;margin:0 auto;position:relative}
  .nav-search input{
    width:100%;height:40px;border-radius:9999px;border:1px solid var(--line);background:var(--surface);
    padding:0 18px 0 42px;font-size:14px;outline:none;transition:border-color .2s, box-shadow .2s;
  }
  .nav-search input::placeholder{color:var(--ink-40)}
  .nav-search input:focus{border-color:var(--ink);box-shadow:0 0 0 2px rgba(255,77,20,.18)}
  .nav-search::before{
    content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:16px;height:16px;opacity:.45;
    background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23111213' stroke-width='2.2' stroke-linecap='round'><circle cx='11' cy='11' r='7'/><path d='M20 20l-4-4'/></svg>") no-repeat center/contain;
  }
  @media (min-width:1024px){ .nav-search{display:block} }
  .nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .nav-burger{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:1px solid var(--line);border-radius:9999px;background:var(--surface);cursor:pointer;transition:.2s}
  .nav-burger:hover{border-color:var(--ink)}
  @media (min-width:1024px){ .nav-burger{display:none} }
  .burger-lines{position:relative;width:16px;height:2px;background:var(--ink);display:block}
  .burger-lines::before,.burger-lines::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink)}
  .burger-lines::before{top:-5px}
  .burger-lines::after{top:5px}

  .nav-tabs{border-top:1px solid var(--line)}
  .tabs-scroll{display:flex;gap:8px;overflow-x:auto;scroll-snap-type:x proximity;padding:10px 0;-ms-overflow-style:none;scrollbar-width:none}
  .tabs-scroll::-webkit-scrollbar{display:none}
  .tab{
    flex:0 0 auto;scroll-snap-align:start;display:inline-flex;align-items:center;height:36px;padding:0 16px;
    border-radius:9999px;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-70);
    transition:background-color .2s,border-color .2s,color .2s;white-space:nowrap;
  }
  .tab:hover{border-color:var(--ink);color:var(--ink)}
  .tab.is-active{background:var(--ink);border-color:var(--ink);color:var(--paper)}
  .tab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

  /* ---------- 移动端抽屉 ---------- */
  .drawer{position:fixed;inset:0;z-index:80;background:var(--ink);color:var(--paper);padding:24px;display:flex;flex-direction:column}
  .drawer[hidden]{display:none}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.12)}
  .drawer-brand{font-size:19px;font-weight:800}
  .drawer-brand span{font-size:12px;color:rgba(246,245,242,.6);margin-left:6px;font-weight:600}
  .drawer-close{width:44px;height:44px;border-radius:9999px;border:1px solid rgba(255,255,255,.24);background:transparent;color:var(--paper);font-size:20px;cursor:pointer}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:16px}
  .drawer-nav a{padding:16px 4px;font-size:17px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08);color:rgba(246,245,242,.88)}
  .drawer-nav a:active{color:var(--lime)}
  .drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px}
  .drawer-cta .btn{width:100%}

  /* ---------- 按钮 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;border-radius:9999px;
    border:1px solid transparent;text-decoration:none;cursor:pointer;transition:background-color .2s,color .2s,border-color .2s,transform .15s;white-space:nowrap}
  .btn:active{transform:scale(.98)}
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
  .btn-accent{background:var(--accent);color:#fff}
  .btn-accent:hover{background:var(--accent-hover)}
  .btn-ink{border-color:var(--ink);color:var(--ink);background:transparent}
  .btn-ink:hover{background:var(--ink);color:var(--paper)}
  .btn-paper{border-color:rgba(246,245,242,.45);color:var(--paper);background:transparent}
  .btn-paper:hover{background:var(--paper);color:var(--ink);border-color:var(--paper)}
  .btn-sm{height:40px;padding:0 20px;font-size:14px}
  .btn-lg{height:52px;padding:0 28px;font-size:16px}
  .btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--ink);position:relative}
  .btn-text::after{content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--accent);transition:width .24s cubic-bezier(.16,1,.3,1)}
  .btn-text:hover::after{width:100%}
  .btn-text .arw{transition:transform .24s cubic-bezier(.16,1,.3,1)}
  .btn-text:hover .arw{transform:translateX(4px)}

  /* ---------- 面包屑 ---------- */
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-40);padding:24px 0 0}
  .crumbs a{color:var(--ink-70);transition:color .2s}
  .crumbs a:hover{color:var(--accent)}
  .crumbs .sep{color:var(--ink-40)}
  .crumbs .cur{color:var(--ink-40);max-width:36ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

  /* ---------- 文章头部 ---------- */
  .article-head{padding:28px 0 0}
  .cat-pill{display:inline-flex;align-items:center;height:26px;padding:0 12px;border:1px solid var(--line);border-radius:9999px;
    font-size:13px;font-weight:600;color:var(--ink-70);background:var(--surface)}
  .article-title{font-size:clamp(28px,3.4vw,38px);font-weight:800;line-height:1.24;letter-spacing:-.02em;margin:20px 0 0;max-width:920px}
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--ink-40)}
  .article-meta b{font-weight:700;color:var(--ink-70)}
  .article-meta .dot{width:4px;height:4px;border-radius:9999px;background:var(--line)}
  .article-cover{margin:32px 0 0}
  .article-cover img{width:100%;height:auto;border-radius:12px;aspect-ratio:16/9;object-fit:cover}
  .article-cover figcaption{margin-top:12px;font-size:13px;color:var(--ink-40)}

  /* ---------- 文章布局 ---------- */
  .article-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;padding:48px 0 0}
  @media (min-width:1024px){
    .article-wrap{grid-template-columns:minmax(0,820px) 240px;justify-content:center;gap:80px;align-items:start;padding-top:56px}
  }
  .article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--ink-70)}
  .article-body > *:first-child{margin-top:0}
  .article-body p{margin:0 0 20px}
  .article-body h2{font-size:28px;font-weight:700;line-height:1.3;color:var(--ink);margin:48px 0 20px;letter-spacing:-.01em;scroll-margin-top:140px}
  .article-body h3{font-size:22px;font-weight:700;line-height:1.35;color:var(--ink);margin:32px 0 16px;scroll-margin-top:140px}
  .article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:24px 0 12px}
  .article-body strong{color:var(--ink);font-weight:700}
  .article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
  .article-body a:hover{color:var(--accent-hover)}
  .article-body blockquote{margin:24px 0;padding:20px 24px;border-left:3px solid var(--accent);background:#FAF9F6;
    border-radius:0 12px 12px 0;color:var(--ink);font-size:16px}
  .article-body ul{list-style:none;margin:0 0 20px;padding:0}
  .article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
  .article-body ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--ink)}
  .article-body ol{margin:0 0 20px;padding-left:24px}
  .article-body ol li{margin-bottom:10px;padding-left:6px}
  .article-body ol li::marker{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
  .article-body img{border-radius:12px;margin:8px 0 12px;height:auto}
  .article-body figure{margin:24px 0}
  .article-body figcaption{font-size:13px;color:var(--ink-40);margin-top:10px}
  .article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
  .article-body th{background:var(--ink);color:var(--paper);text-align:left;padding:12px 16px;border:1px solid var(--line);font-weight:700}
  .article-body td{padding:12px 16px;border:1px solid var(--line);color:var(--ink-70)}
  .article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}

  /* ---------- 目录 ---------- */
  .toc-mobile{display:block;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);padding:16px 20px;margin-bottom:8px}
  .toc-mobile summary{font-size:14px;font-weight:700;color:var(--ink);cursor:pointer;list-style:none}
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile summary::after{content:"＋";float:right;color:var(--accent);font-weight:700}
  .toc-mobile[open] summary::after{content:"－"}
  .toc-mobile .toc-list{margin-top:12px}
  @media (min-width:1024px){ .toc-mobile{display:none} }
  .article-side{display:none}
  @media (min-width:1024px){ .article-side{display:block} }
  .toc{position:sticky;top:148px}
  .toc-h{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--ink-40);padding-bottom:12px;border-bottom:1px solid var(--line)}
  .toc-list{display:flex;flex-direction:column;gap:2px;margin-top:14px}
  .toc-link{font-size:14px;line-height:1.5;color:var(--ink-70);padding:8px 0 8px 12px;border-left:2px solid var(--line);transition:color .2s,border-color .2s}
  .toc-link:hover{color:var(--ink);border-left-color:var(--ink-40)}
  .toc-link.is-current{color:var(--accent);border-left-color:var(--accent);font-weight:700}

  /* ---------- 空态 ---------- */
  .empty-state{max-width:360px;margin:40px auto;text-align:center;padding:32px 24px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface)}
  .empty-state svg{margin:0 auto 16px;display:block;color:var(--ink-40)}
  .empty-title{font-size:16px;font-weight:700;color:var(--ink);margin:0 0 6px}
  .empty-sub{font-size:14px;color:var(--ink-40);margin:0 0 20px}

  /* ---------- 标签 ---------- */
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
  .tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border:1px solid var(--line);border-radius:9999px;
    font-size:13px;color:var(--ink-70);background:var(--surface);transition:.2s}
  .tag:hover{border-color:var(--ink);color:var(--ink)}

  /* ---------- 继续了解 ---------- */
  .related{margin-top:64px}
  .sec-title{font-size:22px;font-weight:700;color:var(--ink);margin:0 0 20px;letter-spacing:-.01em}
  .rel-list{border-top:1px solid var(--line)}
  .rel-row{display:flex;align-items:center;gap:20px;padding:24px 0;border-bottom:1px solid var(--line);transition:background-color .25s}
  .rel-row:hover{background:#FAF9F6}
  .rel-num{font-size:14px;font-weight:700;color:var(--ink-40);font-variant-numeric:tabular-nums;width:32px;flex:0 0 32px}
  .rel-title{display:block;font-size:17px;font-weight:700;color:var(--ink);transition:color .2s}
  .rel-row:hover .rel-title{color:var(--accent)}
  .rel-desc{display:block;font-size:14px;color:var(--ink-40);margin-top:4px}
  .rel-arrow{margin-left:auto;font-size:18px;color:var(--ink-40);transition:transform .25s cubic-bezier(.16,1,.3,1),color .2s}
  .rel-row:hover .rel-arrow{transform:translateX(4px);color:var(--accent)}
  .back-row{margin-top:32px}

  /* ---------- 底部 CTA ---------- */
  .cta-band{background:var(--ink);color:var(--paper);margin-top:96px;padding:64px 0}
  .cta-inner{display:flex;flex-direction:column;gap:24px;align-items:flex-start}
  @media (min-width:900px){ .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px} }
  .cta-band h2{font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.25;margin:0 0 10px;letter-spacing:-.02em}
  .cta-band p{margin:0;font-size:15px;color:rgba(246,245,242,.7);max-width:56ch}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:var(--paper);padding:64px 0 0;margin-top:0}
  .footer-top{display:grid;grid-template-columns:1fr;gap:40px}
  @media (min-width:768px){ .footer-top{grid-template-columns:1.7fr 1fr 1fr 1.3fr} }
  .footer-brand{display:flex;align-items:baseline;gap:8px;font-size:20px;font-weight:800;letter-spacing:-.01em}
  .footer-brand span{font-size:12px;font-weight:600;color:rgba(246,245,242,.6)}
  .footer-desc{font-size:14px;line-height:1.8;color:rgba(246,245,242,.66);max-width:46ch;margin:16px 0 0}
  .footer-h{font-size:12px;font-weight:700;letter-spacing:.12em;color:rgba(246,245,242,.5);margin-bottom:16px}
  .footer-links{display:flex;flex-direction:column;gap:12px}
  .footer-links a{font-size:14px;color:rgba(246,245,242,.82);transition:color .2s}
  .footer-links a:hover{color:var(--lime)}
  .footer-contact{font-size:14px;line-height:2;color:rgba(246,245,242,.72);margin:0}
  .footer-contact strong{color:var(--paper);font-weight:600}
  .footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
    display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:rgba(246,245,242,.5)}

  /* ---------- 进场动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
  .reveal.is-in{opacity:1;transform:none}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none}
    *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  }

/* roulang page: category1 */
:root {
      --ink: #111213;
      --ink-70: #4A4C4F;
      --ink-40: #9A9CA0;
      --paper: #F6F5F2;
      --paper-95: rgba(246, 245, 242, .95);
      --surface: #FFFFFF;
      --line: #E4E2DD;
      --accent: #FF4D14;
      --accent-dark: #E2430F;
      --accent-ink: #1B0E06;
      --lime: #C6F24E;
      --radius-card: 16px;
      --radius-img: 12px;
      --radius-input: 10px;
      --radius-pill: 9999px;
      --shadow-soft: 0 1px 2px rgba(17, 18, 19, .04);
      --shadow-lift: 0 20px 40px -24px rgba(17, 18, 19, .28);
      --font-sans: "PingFang SC", "Microsoft YaHei", "Inter", "Helvetica Neue", system-ui, sans-serif;
      --font-num: "Inter", "Helvetica Neue", system-ui, sans-serif;
    }

    *, *::before, *::after { box-sizing: border-box; }

    html { scroll-behavior: smooth; }

    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    img { display: block; max-width: 100%; height: auto; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font: inherit; color: inherit; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }

    :focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

    .container {
      width: 100%;
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 20px;
    }

    @media (min-width: 1024px) {
      .container { padding: 0 32px; }
    }

    /* ---------- 头部导航 ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: var(--paper-95);
      backdrop-filter: saturate(160%) blur(6px);
      border-bottom: 1px solid var(--line);
    }

    .header-main { border-bottom: 1px solid transparent; }

    .header-row {
      display: flex;
      align-items: center;
      gap: 20px;
      min-height: 68px;
    }

    .logo {
      display: inline-flex;
      align-items: baseline;
      gap: 8px;
      font-family: var(--font-num);
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -.01em;
      white-space: nowrap;
    }

    .logo span {
      font-family: var(--font-sans);
      font-size: 13px;
      font-weight: 600;
      color: var(--ink-40);
      letter-spacing: .06em;
    }

    .header-search {
      display: none;
      flex: 1 1 auto;
      max-width: 420px;
      margin-left: 12px;
    }

    .header-search input {
      width: 100%;
      height: 42px;
      padding: 0 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      background: var(--surface);
      font-size: 14px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .header-search input::placeholder { color: var(--ink-40); }

    .header-search input:focus {
      outline: none;
      border-color: var(--ink);
      box-shadow: 0 0 0 3px rgba(255, 77, 20, .16);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
    }

    .hamburger {
      display: inline-flex;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      padding: 0 11px;
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      background: var(--surface);
      cursor: pointer;
      transition: border-color .2s ease;
    }

    .hamburger:hover { border-color: var(--ink); }

    .hamburger span {
      display: block;
      height: 2px;
      background: var(--ink);
      border-radius: 2px;
    }

    /* 频道 Tabs */
    .nav-tabs {
      background: var(--paper-95);
      border-bottom: 1px solid var(--line);
    }

    .tabs-scroll {
      display: flex;
      align-items: center;
      gap: 10px;
      overflow-x: auto;
      scroll-snap-type: x proximity;
      padding: 8px 0 10px;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .tabs-scroll::-webkit-scrollbar { display: none; }

    .tab {
      flex: 0 0 auto;
      scroll-snap-align: start;
      display: inline-flex;
      align-items: center;
      height: 36px;
      padding: 0 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      font-size: 14px;
      font-weight: 600;
      color: var(--ink-70);
      background: transparent;
      white-space: nowrap;
      transition: background-color .2s ease, color .2s ease, border-color .2s ease;
    }

    .tab:hover { border-color: var(--ink); color: var(--ink); }

    .tab.is-active {
      background: var(--ink);
      border-color: var(--ink);
      color: var(--paper);
    }

    /* ---------- 按钮 ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 50px;
      padding: 0 24px;
      border: 1px solid transparent;
      border-radius: var(--radius-pill);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .12s ease, box-shadow .2s ease;
    }

    .btn:active { transform: scale(.98); }

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: var(--shadow-soft);
    }

    .btn-primary:hover { background: var(--accent-dark); box-shadow: var(--shadow-lift); }

    .btn-ghost {
      border-color: var(--ink);
      color: var(--ink);
      background: transparent;
    }

    .btn-ghost:hover { background: var(--ink); color: var(--paper); }

    .btn-sm { min-height: 42px; padding: 0 18px; font-size: 14px; }

    .btn-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 44px;
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
      border-bottom: 1px solid transparent;
      transition: border-color .24s ease, color .24s ease;
    }

    .btn-link:hover { border-color: var(--accent); color: var(--accent); }
    .btn-link .arrow { transition: transform .24s ease; }
    .btn-link:hover .arrow { transform: translateX(4px); }

    /* ---------- 移动端抽屉 ---------- */
    .mobile-drawer {
      position: fixed;
      inset: 0;
      z-index: 80;
      display: flex;
      flex-direction: column;
      gap: 6px;
      padding: 18px 20px 28px;
      background: var(--paper);
      transform: translateY(-102%);
      visibility: hidden;
      transition: transform .32s cubic-bezier(.16, 1, .3, 1), visibility .32s;
    }

    .mobile-drawer.is-open { transform: translateY(0); visibility: visible; }

    .drawer-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-bottom: 16px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 12px;
    }

    .drawer-close {
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      background: var(--surface);
      cursor: pointer;
      font-size: 18px;
      line-height: 1;
    }

    .drawer-link {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 54px;
      padding: 0 4px;
      border-bottom: 1px solid var(--line);
      font-size: 17px;
      font-weight: 600;
    }

    .drawer-link .arrow { color: var(--ink-40); }

    .drawer-cta { margin-top: auto; }
    .drawer-cta .btn { width: 100%; }

    @media (min-width: 1024px) {
      .header-search { display: block; }
      .hamburger { display: none; }
    }

    /* ---------- 窄幅 Hero ---------- */
    .page-hero {
      position: relative;
      overflow: hidden;
      background: var(--paper);
      border-bottom: 1px solid var(--line);
    }

    .page-hero-bg {
      position: absolute;
      inset: 0;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      opacity: .10;
      pointer-events: none;
    }

    .page-hero .container { position: relative; z-index: 1; }

    .crumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      padding: 22px 0 0;
      font-size: 13px;
      color: var(--ink-40);
    }

    .crumb a { transition: color .2s ease; }
    .crumb a:hover { color: var(--accent); }
    .crumb .sep { color: var(--line); }
    .crumb .current { color: var(--ink-70); }

    .hero-narrow {
      display: grid;
      grid-template-columns: 1fr;
      gap: 28px;
      align-items: end;
      padding: 22px 0 40px;
      min-height: 240px;
    }

    @media (min-width: 1024px) {
      .hero-narrow {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 48px;
      }
    }

    .hero-narrow h1 {
      font-size: clamp(32px, 5vw, 52px);
      font-weight: 800;
      line-height: 1.08;
      letter-spacing: -.02em;
      max-width: 18em;
    }

    .hero-lead {
      margin-top: 14px;
      max-width: 46em;
      font-size: 15px;
      line-height: 1.7;
      color: var(--ink-70);
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 20px;
      padding: 18px 0 0;
      border-top: 1px solid var(--line);
    }

    @media (min-width: 640px) {
      .hero-stats { border-top: none; border-left: 1px solid var(--line); padding: 0 0 0 28px; }
    }

    .stat-num {
      font-family: var(--font-num);
      font-size: 32px;
      font-weight: 800;
      line-height: 1.1;
      letter-spacing: -.02em;
      font-variant-numeric: tabular-nums;
    }

    .stat-num em {
      font-style: normal;
      background: var(--lime);
      box-shadow: inset 0 -.4em 0 var(--lime);
      color: var(--ink);
    }

    .stat-label {
      margin-top: 4px;
      font-size: 13px;
      color: var(--ink-40);
    }

    /* ---------- 目录 + 分组条目 ---------- */
    .catalog {
      padding: 64px 0;
    }

    @media (min-width: 1024px) {
      .catalog { padding: 96px 0; }
    }

    .catalog-layout {
      display: grid;
      grid-template-columns: 1fr;
      gap: 40px;
    }

    @media (min-width: 1024px) {
      .catalog-layout {
        grid-template-columns: 240px minmax(0, 1fr);
        gap: 56px;
      }
    }

    .catalog-aside { order: -1; }

    @media (min-width: 1024px) {
      .catalog-aside { order: 0; }
    }

    .aside-inner {
      display: flex;
      gap: 10px;
      overflow-x: auto;
      scroll-snap-type: x proximity;
      padding-bottom: 6px;
      scrollbar-width: none;
    }

    .aside-inner::-webkit-scrollbar { display: none; }

    @media (min-width: 1024px) {
      .aside-inner {
        position: sticky;
        top: 130px;
        flex-direction: column;
        gap: 2px;
        overflow: visible;
        padding-bottom: 0;
      }
    }

    .aside-title {
      display: none;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
      color: var(--ink-40);
      padding: 0 12px 10px;
    }

    @media (min-width: 1024px) {
      .aside-title { display: block; }
    }

    .aside-link {
      display: inline-flex;
      align-items: center;
      flex: 0 0 auto;
      scroll-snap-align: start;
      min-height: 44px;
      padding: 0 16px;
      border: 1px solid var(--line);
      border-left-width: 2px;
      border-radius: var(--radius-pill);
      font-size: 14px;
      font-weight: 600;
      color: var(--ink-70);
      white-space: nowrap;
      transition: color .2s ease, border-color .2s ease, background-color .2s ease;
    }

    @media (min-width: 1024px) {
      .aside-link {
        border: none;
        border-left: 2px solid transparent;
        border-radius: 0;
        padding: 0 12px;
        height: 44px;
        font-size: 15px;
        color: var(--ink-70);
      }
    }

    .aside-link:hover { color: var(--ink); border-left-color: var(--ink-40); }

    .aside-link.is-active {
      color: var(--ink);
      border-left-color: var(--accent);
      background: transparent;
    }

    .group + .group { margin-top: 56px; }

    .group-head {
      padding-bottom: 16px;
      border-bottom: 1px solid var(--line);
    }

    .group-head h2 {
      font-size: clamp(24px, 3vw, 32px);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -.01em;
    }

    .group-head p {
      margin-top: 8px;
      max-width: 44em;
      font-size: 14px;
      color: var(--ink-70);
    }

    .entry-list { margin-top: 4px; }

    .entry {
      display: grid;
      grid-template-columns: 40px minmax(0, 1fr);
      gap: 12px;
      align-items: start;
      padding: 22px 8px;
      border-bottom: 1px solid var(--line);
      transition: background-color .24s ease;
    }

    @media (min-width: 768px) {
      .entry {
        grid-template-columns: 48px minmax(0, 1fr) auto;
        gap: 24px;
        align-items: center;
        padding: 24px 12px;
      }

      .entry:hover { background: #FAF9F6; }
      .entry:hover .entry-body h3 a { background-size: 100% 1px; }
      .entry:hover .entry-link .arrow { transform: translateX(4px); }
    }

    .entry-no {
      font-family: var(--font-num);
      font-size: 18px;
      font-weight: 700;
      color: var(--ink-40);
      font-variant-numeric: tabular-nums;
    }

    .entry-body h3 {
      font-size: 17px;
      font-weight: 600;
      line-height: 1.4;
    }

    .entry-body h3 a {
      background-image: linear-gradient(var(--accent), var(--accent));
      background-repeat: no-repeat;
      background-position: 0 100%;
      background-size: 0 1px;
      transition: background-size .24s ease;
    }

    .entry-body p {
      margin-top: 6px;
      font-size: 14px;
      color: var(--ink-70);
      max-width: 52em;
    }

    .entry-meta {
      margin-top: 10px;
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      height: 26px;
      padding: 0 12px;
      border: 1px solid var(--line);
      border-radius: var(--radius-pill);
      font-size: 13px;
      font-weight: 600;
      color: var(--ink-70);
      background: var(--surface);
      white-space: nowrap;
    }

    .badge-ink {
      background: var(--ink);
      border-color: var(--ink);
      color: var(--lime);
    }

    .badge-accent {
      background: var(--accent);
      border-color: var(--accent);
      color: var(--accent-ink);
    }

    .entry-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 44px;
      font-size: 14px;
      font-weight: 700;
      color: var(--ink);
      justify-self: start;
    }

    @media (min-width: 768px) {
      .entry-link { justify-self: end; }
    }

    .entry-link .arrow { transition: transform .24s ease; color: var(--accent); }

    /* ---------- 看点图文 ---------- */
    .spotlight {
      padding: 0 0 64px;
    }

    @media (min-width: 1024px) {
      .spotlight { padding: 0 0 96px; }
    }

    .section-head {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      padding-bottom: 24px;
      border-bottom: 1px solid var(--line);
      margin-bottom: 32px;
    }

    .section-head h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -.01em;
    }

    .section-head p {
      font-size: 14px;
      color: var(--ink-70);
      max-width: 40em;
    }

    .spotlight-grid {
      display: grid;
      grid-template-columns: 1fr;
      gap: 24px;
    }

    @media (min-width: 768px) {
      .spotlight-grid { grid-template-columns: 1.25fr 1fr; }
    }

    .spotlight-item {
      position: relative;
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      background: var(--surface);
      box-shadow: var(--shadow-soft);
      transition: box-shadow .3s ease, transform .3s ease;
    }

    .spotlight-item:hover { box-shadow: var(--shadow-lift); transform: translateY(-2px); }

    .spotlight-media {
      position: relative;
      overflow: hidden;
      aspect-ratio: 16 / 9;
    }

    .spotlight-item img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .4s ease;
    }

    .spotlight-item:hover img { transform: scale(1.03); }

    .spotlight-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(17, 18, 19, 0);
      transition: background-color .4s ease;
    }

    .spotlight-item:hover .spotlight-media::after { background: rgba(17, 18, 19, .18); }

    .spotlight-caption {
      padding: 20px 24px 24px;
    }

    .spotlight-caption h3 {
      margin-top: 12px;
      font-size: 20px;
      font-weight: 700;
      line-height: 1.35;
    }

    .spotlight-caption p {
      margin-top: 8px;
      font-size: 14px;
      color: var(--ink-70);
    }

    /* ---------- 比赛日节奏（深色区块） ---------- */
    .schedule {
      background: var(--ink);
      color: var(--paper);
      padding: 64px 0;
    }

    @media (min-width: 1024px) {
      .schedule { padding: 80px 0; }
    }

    .schedule-head {
      display: flex;
      flex-wrap: wrap;
      align-items: flex-end;
      justify-content: space-between;
      gap: 16px;
      padding-bottom: 32px;
    }

    .schedule-head h2 {
      font-size: clamp(24px, 3vw, 34px);
      font-weight: 700;
      line-height: 1.2;
      letter-spacing: -.01em;
    }

    .schedule-head p {
      font-size: 14px;
      color: rgba(246, 245, 242, .68);
      max-width: 34em;
    }

    .schedule-strip {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1px;
      background: rgba(255, 255, 255, .12);
      border-top: 1px solid rgba(255, 255, 255, .12);
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    @media (min-width: 768px) {
      .schedule-strip { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    }

    .schedule-item {
      background: var(--ink);
      padding: 24px 20px;
    }

    .schedule-time {
      display: block;
      font-family: var(--font-num);
      font-size: 26px;
      font-weight: 800;
      line-height: 1.15;
      color: var(--lime);
      font-variant-numeric: tabular-nums;
    }

    .schedule-label {
      display: block;
      margin-top: 8px;
      font-size: 14px;
      font-weight: 600;
    }

    .schedule-note {
      margin-top: 10px;
      font-size: 13px;
      color: rgba(246, 245, 242, .6);
    }

    /* ---------- 报名流程 ---------- */
    .steps-section { padding: 64px 0; }

    @media (min-width: 1024px) {
      .steps-section { padding: 96px 0; }
    }

    .steps {
      border-top: 1px solid var(--line);
    }

    .step {
      display: grid;
      grid-template-columns: 56px minmax(0, 1fr);
      gap: 16px;
      align-items: start;
      padding: 26px 0;
      border-bottom: 1px solid var(--line);
    }

    @media (min-width: 768px) {
      .step { grid-template-columns: 88px minmax(0, 1fr); gap: 28px; }
    }

    .step-no {
      font-family: var(--font-num);
      font-size: 30px;
      font-weight: 800;
      line-height: 1;
      color: var(--ink-40);
      font-variant-numeric: tabular-nums;
    }

    .step h3 {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.4;
    }

    .step p {
      margin-top: 6px;
      font-size: 14px;
      color: var(--ink-70);
      max-width: 54em;
    }

    /* ---------- FAQ ---------- */
    .faq-section { padding: 0 0 64px; }

    @media (min-width: 1024px) {
      .faq-section { padding: 0 0 96px; }
    }

    .faq-list { border-top: 1px solid var(--line); }

    .faq-item { border-bottom: 1px solid var(--line); }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      min-height: 68px;
      padding: 16px 4px;
      cursor: pointer;
      list-style: none;
      font-size: 17px;
      font-weight: 600;
      transition: color .2s ease;
    }

    .faq-item summary::-webkit-details-marker { display: none; }

    .faq-item summary:hover { color: var(--accent); }

    .plus {
      position: relative;
      flex: 0 0 auto;
      width: 22px;
      height: 22px;
      transition: transform .28s ease;
    }

    .plus::before,
    .plus::after {
      content: "";
      position: absolute;
      background: var(--ink);
      border-radius: 2px;
    }

    .plus::before { left: 0; top: 10px; width: 22px; height: 1.5px; }
    .plus::after { left: 10px; top: 0; width: 1.5px; height: 22px; }

    .faq-item[open] .plus { transform: rotate(45deg); }

    .faq-a {
      padding: 0 4px 22px;
      max-width: 62em;
      font-size: 15px;
      color: var(--ink-70);
      border-top: 1px solid var(--accent);
      margin-top: -1px;
      padding-top: 16px;
    }

    /* ---------- 底部 CTA 条 ---------- */
    .cta-bar {
      background: var(--ink);
      color: var(--paper);
    }

    .cta-bar-inner {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 30px 0;
    }

    .cta-bar h2 {
      font-size: clamp(20px, 2.4vw, 26px);
      font-weight: 700;
      line-height: 1.3;
      letter-spacing: -.01em;
    }

    .cta-bar p {
      margin-top: 6px;
      font-size: 14px;
      color: rgba(246, 245, 242, .68);
    }

    /* ---------- 页脚 ---------- */
    .site-footer {
      background: var(--ink);
      color: var(--paper);
      padding: 56px 0 24px;
      border-top: 1px solid rgba(255, 255, 255, .12);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1fr;
      gap: 32px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, .12);
    }

    @media (min-width: 768px) {
      .footer-top { grid-template-columns: 1.4fr 1fr; }
    }

    @media (min-width: 1024px) {
      .footer-top { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
    }

    .footer-brand {
      display: flex;
      align-items: baseline;
      gap: 10px;
      font-family: var(--font-num);
      font-size: 20px;
      font-weight: 800;
      letter-spacing: -.01em;
    }

    .footer-brand span {
      font-family: var(--font-sans);
      font-size: 13px;
      font-weight: 600;
      color: rgba(246, 245, 242, .55);
      letter-spacing: .06em;
    }

    .footer-desc {
      margin-top: 14px;
      max-width: 34em;
      font-size: 14px;
      line-height: 1.75;
      color: rgba(246, 245, 242, .68);
    }

    .footer-h {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-links a {
      font-size: 14px;
      color: rgba(246, 245, 242, .68);
      transition: color .2s ease;
      width: fit-content;
    }

    .footer-links a:hover { color: var(--lime); }

    .footer-contact {
      font-size: 14px;
      line-height: 2;
      color: rgba(246, 245, 242, .68);
    }

    .footer-contact strong {
      color: var(--paper);
      font-weight: 600;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 22px;
      font-size: 13px;
      color: rgba(246, 245, 242, .5);
    }

    /* ---------- 进场动效 ---------- */
    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity .6s cubic-bezier(.16, 1, .3, 1), transform .6s cubic-bezier(.16, 1, .3, 1);
    }

    .reveal.is-visible { opacity: 1; transform: none; }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      .reveal { opacity: 1; transform: none; transition: none; }
      * { animation: none !important; transition-duration: .001ms !important; }
    }

/* roulang page: category2 */
:root{
  --ink:#111213;
  --ink-70:#4A4C4F;
  --ink-40:#9A9CA0;
  --paper:#F6F5F2;
  --surface:#FFFFFF;
  --line:#E4E2DD;
  --accent:#FF4D14;
  --accent-hover:#E84510;
  --accent-ink:#1B0E06;
  --lime:#C6F24E;
  --radius-card:16px;
  --radius-pill:9999px;
  --shadow-soft:0 1px 2px rgba(17,18,19,.04);
  --shadow-lift:0 20px 40px -24px rgba(17,18,19,.28);
  --gap-16:16px;
  --gap-24:24px;
  --gap-32:32px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Inter","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){
  .container{padding:0 32px}
}

/* ---------- 双层导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(246,245,242,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(6px);
}
.nav-top{
  display:flex;
  align-items:center;
  gap:16px;
  height:68px;
}
.brand{
  font-weight:800;
  font-size:20px;
  letter-spacing:-.01em;
  display:inline-flex;
  align-items:baseline;
  white-space:nowrap;
}
.brand-sub{
  font-size:12px;
  font-weight:600;
  color:var(--ink-40);
  margin-left:8px;
  letter-spacing:.04em;
}
.nav-search{
  display:none;
  flex:1 1 auto;
  max-width:420px;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--surface);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--ink);box-shadow:0 0 0 2px rgba(255,77,20,.18)}
.nav-search input{
  flex:1;
  border:0;
  outline:none;
  background:transparent;
  font-size:15px;
}
.nav-search input::placeholder{color:var(--ink-40)}
.nav-search svg{flex:0 0 auto;color:var(--ink-40)}
@media (min-width:1024px){
  .nav-search{display:flex;margin:0 32px}
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-cta{display:none}
@media (min-width:640px){
  .nav-cta{display:inline-flex}
}
.nav-burger{
  width:44px;height:44px;
  display:inline-flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
}
.nav-burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
@media (min-width:1024px){
  .nav-burger{display:none}
}

.nav-tabs{
  border-top:1px solid var(--line);
  background:rgba(246,245,242,.95);
}
.tabs-scroll{
  display:flex;
  gap:8px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:8px 0;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.tabs-scroll::-webkit-scrollbar{display:none}
.tab{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  font-size:14px;
  color:var(--ink-70);
  white-space:nowrap;
  transition:background .2s ease, color .2s ease, border-color .2s ease;
}
.tab:hover{color:var(--ink);border-color:var(--ink)}
.tab.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:80;
  background:var(--paper);
  display:flex;
  flex-direction:column;
  padding:20px;
  transform:translateY(-100%);
  transition:transform .35s cubic-bezier(.16,1,.3,1);
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:48px}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:22px;
  line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-links{display:flex;flex-direction:column;margin-top:24px;border-top:1px solid var(--line)}
.drawer-links a{
  padding:18px 0;
  border-bottom:1px solid var(--line);
  font-size:18px;
  font-weight:600;
}
.drawer-links a.is-active{color:var(--accent)}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:0 24px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background .2s ease, color .2s ease, border-color .2s ease, transform .12s ease, box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-ghost:active{transform:scale(.98)}
.btn-invert{border:1px solid rgba(246,245,242,.4);color:var(--paper)}
.btn-invert:hover{background:var(--paper);color:var(--ink)}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:-3px;
  height:1px;width:0;
  background:var(--accent);
  transition:width .24s ease;
}
.link-arrow:hover::after{width:100%}
.link-arrow i{font-style:normal;transition:transform .24s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  font-size:13px;
  color:var(--ink-70);
  background:var(--surface);
  white-space:nowrap;
}
.tag-accent{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.tag-lime{background:var(--lime);border-color:var(--lime);color:var(--accent-ink);font-weight:700}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:40px 0 36px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  opacity:.10;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-40);
}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .current{color:var(--ink-40)}
.page-h1{
  margin-top:18px;
  font-size:clamp(32px,5.2vw,54px);
  font-weight:800;
  line-height:1.08;
  letter-spacing:-.02em;
  max-width:820px;
}
.hero-lead{
  margin-top:16px;
  font-size:17px;
  color:var(--ink-70);
  max-width:660px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:14px 36px;
  margin-top:26px;
}
.hero-stat{font-size:13px;color:var(--ink-40)}
.hero-stat b{
  font-size:22px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  margin-right:6px;
  letter-spacing:-.01em;
}

.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  margin-top:32px;
  padding-bottom:4px;
  scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none}
.filter-pill{
  flex:0 0 auto;
  scroll-snap-align:start;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--surface);
  font-size:14px;
  color:var(--ink-70);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.filter-pill:hover{border-color:var(--ink);color:var(--ink)}
.filter-pill.is-on{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:600}

/* ---------- 板块 ---------- */
.section{padding:64px 0}
@media (min-width:1024px){
  .section{padding:96px 0}
}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.2;
  letter-spacing:-.02em;
}
.section-sub{
  margin-top:10px;
  font-size:15px;
  color:var(--ink-70);
  max-width:600px;
}

/* ---------- 卡片流 ---------- */
.card-flow{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:640px) and (max-width:1023px){
  .card-flow{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .card-flow{grid-template-columns:repeat(12,minmax(0,1fr))}
  .card-flow > .span-8{grid-column:span 8}
  .card-flow > .span-4{grid-column:span 4}
}
.rcard{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:box-shadow .35s ease, transform .35s ease, border-color .35s ease;
}
.rcard:hover{box-shadow:var(--shadow-lift);transform:translateY(-2px);border-color:#D8D5CE}
.rcard.is-hidden{display:none}
.rcard-media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/9;
  background:#EDEBE6;
}
.span-4 .rcard-media{aspect-ratio:4/3}
.rcard-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.rcard-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(17,18,19,0);
  transition:background .4s ease;
}
.rcard:hover .rcard-media img{transform:scale(1.03)}
.rcard:hover .rcard-media::after{background:rgba(17,18,19,.18)}
.rcard-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
  padding:24px;
}
.rcard-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.rcard-num{
  font-size:13px;
  font-weight:700;
  color:var(--ink-40);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
}
.rcard-title{
  font-size:20px;
  font-weight:700;
  line-height:1.35;
  letter-spacing:-.01em;
}
.rcard-desc{
  font-size:15px;
  color:var(--ink-70);
  line-height:1.7;
}
.rcard-meta{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--ink-40);
}
.rcard-meta .link-arrow{font-size:13px}

.rcard--ink{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--paper);
  padding:32px;
  justify-content:space-between;
  gap:24px;
}
.rcard--ink .rcard-desc{color:rgba(246,245,242,.72)}
.rcard--ink .rcard-meta{border-top-color:rgba(255,255,255,.14);color:rgba(246,245,242,.6)}
.rcard--ink .link-arrow{color:var(--paper)}
.rcard--ink .link-arrow::after{background:var(--lime)}
.rcard-big{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-variant-numeric:tabular-nums;
}
.rcard-big strong{
  font-size:clamp(48px,7vw,64px);
  font-weight:800;
  line-height:1;
  color:var(--lime);
  letter-spacing:-.03em;
}
.rcard-big span{font-size:15px;color:rgba(246,245,242,.72)}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
@media (min-width:1024px){
  .metrics{grid-template-columns:repeat(4,minmax(0,1fr))}
}
.metric{
  background:var(--surface);
  padding:28px 24px;
}
.metric strong{
  display:block;
  font-size:32px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.metric span{
  display:block;
  margin-top:8px;
  font-size:14px;
  font-weight:600;
}
.metric em{
  display:block;
  margin-top:6px;
  font-size:13px;
  font-style:normal;
  color:var(--ink-40);
  line-height:1.6;
}

/* ---------- 编号说明清单 ---------- */
.step-list{display:grid;gap:32px}
.step{
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:16px;
  align-items:start;
  padding-bottom:32px;
  border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0;padding-bottom:0}
@media (min-width:768px){
  .step{grid-template-columns:72px minmax(0,1fr)}
}
.step-num{
  font-size:28px;
  font-weight:800;
  line-height:1.1;
  color:var(--ink-40);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
@media (min-width:768px){
  .step-num{font-size:32px}
}
.step h3{font-size:17px;font-weight:700;letter-spacing:-.01em}
.step p{margin-top:8px;font-size:15px;color:var(--ink-70);max-width:760px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{
  position:relative;
  border-bottom:1px solid var(--line);
}
.faq-item::before{
  content:"";
  position:absolute;
  top:-1px;left:0;
  width:0;height:1px;
  background:var(--accent);
  transition:width .3s ease;
}
.faq-item.is-open::before{width:56px}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:24px 0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  letter-spacing:-.01em;
}
.faq-q:hover{color:var(--accent)}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:24px;height:24px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--ink);
  transition:transform .3s ease, opacity .3s ease;
}
.faq-icon::before{left:11px;top:4px;width:2px;height:16px}
.faq-icon::after{top:11px;left:4px;height:2px;width:16px}
.faq-item.is-open .faq-icon::before{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--ink)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s cubic-bezier(.16,1,.3,1);
}
.faq-a p{
  padding:0 0 24px;
  max-width:760px;
  font-size:15px;
  color:var(--ink-70);
}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:var(--ink);
  color:var(--paper);
  padding:48px 0;
}
.cta-strip-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-line{
  font-size:clamp(19px,2.4vw,26px);
  font-weight:700;
  line-height:1.4;
  letter-spacing:-.01em;
  max-width:620px;
}
.cta-line b{
  color:var(--lime);
  font-variant-numeric:tabular-nums;
  font-weight:800;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--paper);
  padding:64px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1fr;
  gap:40px;
}
@media (min-width:768px){
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .footer-top{grid-template-columns:1.5fr 1fr 1fr 1.3fr}
}
.footer-brand{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  display:inline-flex;
  align-items:baseline;
}
.footer-brand span{
  font-size:12px;
  font-weight:600;
  color:rgba(246,245,242,.55);
  margin-left:8px;
  letter-spacing:.04em;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(246,245,242,.68);
  max-width:380px;
}
.footer-h{
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  color:rgba(246,245,242,.95);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:14px;
  color:rgba(246,245,242,.68);
  transition:color .2s ease, transform .2s ease;
  width:fit-content;
}
.footer-links a:hover{color:var(--lime);transform:translateX(3px)}
.footer-contact{
  font-size:14px;
  line-height:2;
  color:rgba(246,245,242,.68);
}
.footer-contact strong{color:rgba(246,245,242,.95);font-weight:600}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  font-size:13px;
  color:rgba(246,245,242,.55);
  font-variant-numeric:tabular-nums;
}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s cubic-bezier(.16,1,.3,1), transform .6s cubic-bezier(.16,1,.3,1);
}
.reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1!important;transform:none!important}
  html{scroll-behavior:auto}
}