/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --bg-0:#05090F;
  --bg-1:#0A121B;
  --bg-2:#101C28;
  --brand:#1FD6C0;
  --brand-2:#12A7C4;
  --accent:#FFB25A;
  --violet:#7C8CF8;
  --text:#E9F4F6;
  --dim:#9AB0BD;
  --muted:#6C8290;
  --line:rgba(140,215,225,.14);
  --glass-line:rgba(255,255,255,.10);
  --ok:#38D39F;
  --err:#FF6B6B;
  --r-card:18px;
  --r-btn:999px;
  --r-sm:12px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 22px 56px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(31,214,192,.45), 0 12px 32px rgba(31,214,192,.30);
  --ease:cubic-bezier(.2,.8,.2,1);
  --gap:24px;
  --sec:112px;
}
/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(to right, rgba(140,215,225,.032) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(140,215,225,.032) 1px, transparent 1px);
  background-size:76px 76px;
}
body::after{
  content:"";position:fixed;right:-14%;bottom:-24%;width:62vw;height:62vw;
  background:radial-gradient(circle, rgba(31,214,192,.075), transparent 66%);
  pointer-events:none;z-index:0;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,214,192,.28);color:#fff}
/* ================= 布局容器 ================= */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section{padding:var(--sec) 0;position:relative;z-index:2}
.section--tight{padding:72px 0}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
.sec-head h2{font-size:34px;line-height:1.32;font-weight:700;letter-spacing:.01em}
.sec-desc{color:var(--dim);font-size:16px;margin-top:16px;max-width:660px}
.text-dim{color:var(--dim)}
/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s var(--ease), background .22s var(--ease), box-shadow .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
  white-space:nowrap;min-height:46px;
}
.btn i{font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,var(--brand) 0%,#2FE0E6 55%,var(--brand-2) 100%);
  color:#03231F;
  box-shadow:0 8px 24px rgba(31,214,192,.24);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:var(--glow);color:#02201D}
.btn-primary:active{transform:translateY(1px)}
.btn-secondary{
  background:rgba(16,28,40,.5);
  border-color:var(--glass-line);
  color:var(--text);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-radius:var(--r-sm);
}
.btn-secondary:hover{background:rgba(31,214,192,.12);border-color:rgba(31,214,192,.45);transform:translateY(-2px)}
.btn-ghost{
  padding:6px 2px;border-radius:0;min-height:auto;color:var(--brand);font-weight:600;
  position:relative;
}
.btn-ghost::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--brand);transition:width .26s var(--ease);
}
.btn-ghost:hover::after{width:100%}
.btn-block{width:100%}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px}
/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
  border:1px solid rgba(31,214,192,.35);
  background:rgba(31,214,192,.12);
  color:#7BE9DA;
}
.badge--amber{border-color:rgba(255,178,90,.38);background:rgba(255,178,90,.12);color:var(--accent)}
.badge--violet{border-color:rgba(124,140,248,.38);background:rgba(124,140,248,.12);color:#AAB4FF}
.badge--muted{border-color:rgba(140,215,225,.18);background:rgba(140,215,225,.06);color:var(--dim)}
/* ================= 导航 ================= */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  transition:background .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease), height .24s var(--ease);
  background:rgba(6,12,20,.45);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 8px 30px rgba(0,0,0,.28);
}
.site-header.is-stuck{
  background:#070D15;
  border-bottom-color:rgba(140,215,225,.18);
  box-shadow:0 14px 40px rgba(0,0,0,.5);
}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:24px;
  transition:height .24s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:flex;align-items:baseline;gap:2px;flex:0 0 auto}
.brand-mark{
  font-size:21px;font-weight:800;letter-spacing:.02em;
  background:linear-gradient(120deg,var(--brand),#7FF3E4);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-text{font-size:17px;font-weight:600;color:var(--text);letter-spacing:.04em}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:18px;flex:1 1 auto}
.nav-link{
  position:relative;font-size:15px;color:rgba(233,244,246,.86);
  padding:6px 0;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand);border-radius:2px;transition:width .24s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--dim);border:1px solid transparent;
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,214,192,.35);background:rgba(31,214,192,.08)}
.burger{display:none;width:44px;height:44px;border-radius:12px;color:var(--text);font-size:18px;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.12)}
.burger:hover{color:var(--brand);border-color:rgba(31,214,192,.4)}
/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,12,.7);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:140;
  background:rgba(9,17,26,.94);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  border-left:1px solid rgba(255,255,255,.10);
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:24px 22px 28px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.12);color:var(--dim);display:inline-flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--brand);border-color:rgba(31,214,192,.4)}
.drawer-nav{display:flex;flex-direction:column;gap:6px;flex:1 1 auto}
.drawer-nav a{
  padding:14px 12px;border-radius:12px;font-size:16px;color:rgba(233,244,246,.86);
  transform:translateY(12px);opacity:0;
  transition:transform .34s var(--ease),opacity .34s var(--ease),background .22s var(--ease),color .22s var(--ease);
}
.drawer.is-open .drawer-nav a{transform:translateY(0);opacity:1}
.drawer.is-open .drawer-nav a:nth-child(1){transition-delay:.05s}
.drawer.is-open .drawer-nav a:nth-child(2){transition-delay:.1s}
.drawer.is-open .drawer-nav a:nth-child(3){transition-delay:.15s}
.drawer.is-open .drawer-nav a:nth-child(4){transition-delay:.2s}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(31,214,192,.1);color:#fff}
.drawer-foot{padding-top:18px;border-top:1px solid var(--line)}
/* ================= Hero ================= */
.hero{
  position:relative;min-height:640px;display:flex;align-items:center;
  padding:150px 0 96px;overflow:hidden;z-index:1;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  filter:saturate(.85);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(5,9,15,.86) 0%, rgba(5,9,15,.72) 42%, rgba(5,9,15,.96) 100%),
    radial-gradient(120% 90% at 12% 20%, rgba(31,214,192,.16), transparent 58%);
}
.hero-scan{
  position:absolute;top:0;bottom:0;width:220px;
  background:linear-gradient(90deg,transparent,rgba(31,214,192,.09),transparent);
  animation:scan 11s var(--ease) infinite;pointer-events:none;
}
@keyframes scan{0%{left:-240px}55%{left:108%}100%{left:108%}}
.hero-inner{position:relative;z-index:3;width:100%}
.hero-copy{max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(16,28,40,.55);
  border:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  font-size:13px;color:#B8E9E2;letter-spacing:.02em;margin-bottom:22px;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 4px rgba(31,214,192,.18);
  animation:pulse 2.4s var(--ease) infinite;
}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(31,214,192,.18)}50%{box-shadow:0 0 0 9px rgba(31,214,192,.05)}}
.hero h1{
  font-size:52px;line-height:1.16;font-weight:700;letter-spacing:.01em;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand) 10%,#8CF5E8 60%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:18px;color:var(--dim);max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:14px 42px;margin-top:44px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-trust li{display:flex;flex-direction:column;gap:2px}
.hero-trust strong{
  font-size:26px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
  font-feature-settings:"tnum";
}
.hero-trust span{font-size:13px;color:var(--muted)}
/* 状态卡 */
.status-card{
  border-radius:var(--r-card);
  background:rgba(16,28,40,.55);
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-2);
  padding:28px 26px;
  position:relative;overflow:hidden;
}
.status-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,192,0));
}
.status-title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--dim);margin-bottom:18px;
}
.status-title b{color:var(--text);font-size:15px;font-weight:600}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 0;border-top:1px solid var(--line);font-size:14px;
}
.status-row:first-of-type{border-top:0}
.status-row .k{color:var(--muted)}
.status-row .v{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
.status-row .v.accent{color:var(--accent)}
.seat-bar{height:6px;border-radius:999px;background:rgba(140,215,225,.12);overflow:hidden;margin-top:10px}
.seat-bar i{display:block;height:100%;width:68%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.status-cta{margin-top:20px}
/* ================= 概览条 ================= */
.overview{
  padding:0 0 8px;position:relative;z-index:2;
}
.overview-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-top:-52px;position:relative;z-index:5;
  box-shadow:var(--shadow-2);
}
.ov-cell{
  background:linear-gradient(180deg, rgba(16,28,40,.96), rgba(10,18,27,.96));
  padding:28px 22px;text-align:center;
}
.ov-num{
  display:block;font-size:34px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";letter-spacing:.01em;
  background:linear-gradient(120deg,#fff,#7BE9DA);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.ov-label{display:block;font-size:13px;color:var(--muted);margin-top:4px}
/* ================= 时间线 ================= */
.timeline{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 26px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(31,214,192,.4) transparent;
}
.timeline::-webkit-scrollbar{height:6px}
.timeline::-webkit-scrollbar-track{background:rgba(140,215,225,.08);border-radius:999px}
.timeline::-webkit-scrollbar-thumb{background:rgba(31,214,192,.4);border-radius:999px}
.tl-node{
  flex:0 0 262px;scroll-snap-align:start;position:relative;
  background:rgba(16,28,40,.6);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 20px 22px;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.tl-node::before{
  content:"";position:absolute;top:-1px;left:24px;right:24px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,192,0));
  transition:background .26s var(--ease);
}
.tl-node:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.4);box-shadow:var(--shadow-1)}
.tl-node:hover::before{background:linear-gradient(90deg,var(--accent),rgba(255,178,90,0))}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 0 5px rgba(31,214,192,.14);
  margin-bottom:16px;display:block;
}
.tl-node.is-done .tl-dot{background:var(--muted);box-shadow:0 0 0 5px rgba(108,130,144,.14)}
.tl-node.is-live .tl-dot{background:var(--accent);box-shadow:0 0 0 6px rgba(255,178,90,.16)}
.tl-time{
  font-size:12px;letter-spacing:.12em;color:var(--brand);font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:8px;display:block;
}
.tl-node.is-live .tl-time{color:var(--accent)}
.tl-node.is-done .tl-time{color:var(--muted)}
.tl-node h3{font-size:18px;font-weight:600;margin-bottom:8px;line-height:1.5}
.tl-node p{font-size:13px;color:var(--dim);line-height:1.7}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
/* ================= 嘉宾 / Tab ================= */
.tabs{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px;
}
.tab-btn{
  padding:10px 20px;border-radius:999px;font-size:14px;font-weight:600;
  border:1px solid var(--line);color:var(--dim);background:rgba(16,28,40,.5);
  transition:all .22s var(--ease);
}
.tab-btn:hover{color:var(--text);border-color:rgba(31,214,192,.4)}
.tab-btn.is-active{
  color:#03231F;border-color:transparent;
  background:linear-gradient(120deg,var(--brand),#39E4E8);
  box-shadow:0 8px 22px rgba(31,214,192,.22);
}
.tab-panel{display:none}
.tab-panel.is-active{display:block;animation:fadeUp .32s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.speaker-track{
  display:flex;gap:22px;overflow-x:auto;padding:4px 4px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;scrollbar-color:rgba(31,214,192,.4) transparent;
}
.speaker-track::-webkit-scrollbar{height:6px}
.speaker-track::-webkit-scrollbar-track{background:rgba(140,215,225,.08);border-radius:999px}
.speaker-track::-webkit-scrollbar-thumb{background:rgba(31,214,192,.4);border-radius:999px}
.person-card{
  flex:0 0 calc((100% - 44px)/3);min-width:280px;scroll-snap-align:start;
  background:rgba(16,28,40,.6);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;position:relative;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.person-card::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:56px;z-index:3;
  background:var(--brand);transition:background .26s var(--ease),width .26s var(--ease);
}
.person-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.4);box-shadow:var(--shadow-1)}
.person-card:hover::before{background:var(--accent);width:88px}
.person-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.person-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.person-card:hover .person-thumb img{transform:scale(1.04)}
.person-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,0) 40%,rgba(5,9,15,.9) 100%);
}
.person-body{padding:20px 20px 22px}
.person-body h3{font-size:18px;font-weight:600;margin-bottom:4px}
.person-role{font-size:13px;color:var(--muted);margin-bottom:12px}
.person-line{font-size:14px;color:var(--dim);line-height:1.7;margin-bottom:16px}
.heat{display:flex;align-items:center;gap:10px}
.heat-bar{flex:1;height:5px;border-radius:999px;background:rgba(140,215,225,.12);overflow:hidden}
.heat-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--violet))}
.heat span{font-size:12px;color:var(--accent);font-weight:700;font-variant-numeric:tabular-nums}
/* ================= 票种对比 ================= */
.tickets{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start;
}
.ticket{
  background:rgba(16,28,40,.6);border:1px solid var(--line);
  border-radius:var(--r-card);padding:30px 26px 26px;position:relative;
  transition:transform .26s var(--ease),border-color .26s var(--ease);
}
.ticket:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.32)}
.ticket--hot{
  border-color:rgba(31,214,192,.55);
  box-shadow:0 0 0 1px rgba(31,214,192,.3), 0 18px 46px rgba(31,214,192,.18);
  background:linear-gradient(180deg, rgba(21,39,53,.78), rgba(12,22,33,.78));
}
.ticket-flag{
  position:absolute;top:-12px;right:22px;
  padding:4px 14px;border-radius:999px;font-size:12px;font-weight:700;
  background:linear-gradient(120deg,var(--accent),#FFD49B);color:#3A2200;
  box-shadow:0 8px 20px rgba(255,178,90,.28);
}
.ticket h3{font-size:20px;font-weight:700;margin-bottom:6px}
.ticket-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.ticket-price{
  font-size:30px;font-weight:700;color:#fff;letter-spacing:.01em;
  font-variant-numeric:tabular-nums;margin-bottom:20px;
}
.ticket-price small{font-size:13px;color:var(--muted);font-weight:400;margin-left:6px}
.benefit{display:flex;flex-direction:column;gap:12px;margin-bottom:26px}
.benefit li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--dim);line-height:1.6}
.benefit li i{font-size:13px;margin-top:5px;flex:0 0 auto}
.benefit li i.ok{color:var(--brand)}
.benefit li i.no{color:var(--muted)}
.benefit li.off{color:var(--muted)}
.ticket .btn{width:100%}
/* ================= 资讯列表 ================= */
.news-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.news-card{
  background:rgba(16,28,40,.6);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;position:relative;
  display:flex;flex-direction:column;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.news-card::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:52px;z-index:3;
  background:var(--brand);transition:background .26s var(--ease),width .26s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.4);box-shadow:var(--shadow-1)}
.news-card:hover::before{background:var(--accent);width:94px}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;display:block}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,9,15,.05),rgba(5,9,15,.55))}
.news-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body .badge{align-self:flex-start;margin-bottom:12px}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--brand)}
.news-sum{
  font-size:14px;color:var(--dim);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.news-time{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-more{font-size:13px;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.news-more i{transition:transform .22s var(--ease)}
.news-card:hover .news-more i{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:66px 24px;
  border:1px dashed rgba(140,215,225,.24);border-radius:var(--r-card);
  background:rgba(16,28,40,.4);
}
.empty-state i{font-size:30px;color:var(--muted);display:block;margin-bottom:14px}
.empty-state p{color:var(--dim);font-size:15px;margin-bottom:18px}
/* ================= 报名 CTA ================= */
.cta-band{
  background:linear-gradient(150deg, rgba(14,32,42,.95), rgba(7,14,22,.98));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-8%;top:-40%;width:52%;height:180%;
  background:radial-gradient(circle, rgba(31,214,192,.12), transparent 62%);
  pointer-events:none;
}
.cta-copy h2{font-size:32px;font-weight:700;line-height:1.34;margin-bottom:16px}
.cta-copy p{color:var(--dim);font-size:15px;margin-bottom:10px;max-width:420px}
.signup-form{
  background:rgba(16,28,40,.6);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--shadow-2);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--dim);font-weight:500}
.field label .req{color:var(--accent);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);
  background:rgba(6,12,20,.72);border:1px solid rgba(140,215,225,.18);
  color:var(--text);font-size:14px;line-height:1.5;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  appearance:none;
}
.field select{
  background-image:linear-gradient(45deg,transparent 50%,var(--dim) 50%),linear-gradient(135deg,var(--dim) 50%,transparent 50%);
  background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;
}
.field input::placeholder{color:var(--muted)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:rgba(6,12,20,.95);
  box-shadow:0 0 0 3px rgba(31,214,192,.14);outline:none;
}
.field.has-error input,.field.has-error select{border-color:var(--err);box-shadow:0 0 0 3px rgba(255,107,107,.12)}
.field-msg{font-size:12px;color:var(--err);display:none}
.field.has-error .field-msg{display:block}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}
.form-ok{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(56,211,159,.1);border:1px solid rgba(56,211,159,.36);
  color:#8CF0C9;font-size:14px;
}
.form-ok.is-show{display:block}
/* ================= FAQ ================= */
.faq-wrap{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:rgba(16,28,40,.55);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(31,214,192,.4);background:rgba(18,32,45,.7)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(140,215,225,.3);color:var(--brand);font-size:11px;
  transition:transform .22s var(--ease),background .22s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(31,214,192,.16)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a p{padding:0 22px 22px;font-size:14px;color:var(--dim);line-height:1.9}
/* ================= 页脚 ================= */
.site-footer{
  background:#040A11;border-top:1px solid var(--line);
  padding:72px 0 0;position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--dim);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a,.footer-col li{font-size:14px;color:var(--dim);line-height:1.7}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:5px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted)}
.footer-bottom a{color:var(--dim)}
.footer-bottom a:hover{color:var(--brand)}
/* ================= 响应式 ================= */
@media (min-width:1440px){
  .container,.nav-wrap{max-width:1320px}
}
@media (max-width:1023px){
  :root{--sec:80px}
  .main-nav{display:none}
  .burger{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .hero{min-height:auto;padding:132px 0 76px}
  .hero h1{font-size:40px}
  .hero-sub{font-size:17px}
  .status-card{margin-top:36px}
  .overview-grid{grid-template-columns:repeat(2,1fr);margin-top:-40px}
  .person-card{flex:0 0 74%;min-width:0}
  .tickets{grid-template-columns:1fr;gap:18px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .form-row{grid-template-columns:1fr}
}
@media (max-width:639px){
  :root{--sec:60px}
  .container{padding:0 18px}
  .nav-wrap{padding:0 18px;height:64px}
  .site-header.is-stuck .nav-wrap{height:58px}
  .hero{padding:112px 0 64px}
  .hero h1{font-size:32px;line-height:1.28}
  .hero-sub{font-size:15px}
  .hero-btns{flex-direction:column;align-items:stretch}
  .hero-btns .btn{width:100%}
  .hero-trust{gap:16px 26px;margin-top:32px}
  .hero-trust strong{font-size:22px}
  .sec-head h2{font-size:24px}
  .sec-desc{font-size:15px}
  .overview-grid{grid-template-columns:1fr 1fr;margin-top:-32px}
  .ov-cell{padding:22px 14px}
  .ov-num{font-size:26px}
  .cta-copy h2{font-size:24px}
  .signup-form{padding:22px 18px}
  .news-grid{grid-template-columns:1fr}
  .person-card{flex:0 0 84%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .ticket{padding:26px 20px 22px}
  .faq-q{font-size:15px;padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
/* Foundation 默认样式覆盖 */
.button,.button.primary,.button.secondary{background:none;color:inherit;border:0;box-shadow:none;padding:0;font-family:inherit}
.callout{background:transparent;border:0;margin:0;padding:0}
table{border-collapse:separate;border-spacing:0}
.reveal{background:transparent;border:0}

/* roulang page: category1 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A121B;
  --bg-2:#101C28;
  --brand:#1FD6C0;
  --brand-deep:#12A99A;
  --accent:#FFB25A;
  --violet:#7C8CF8;
  --text:#E9F4F6;
  --dim:#9AB0BD;
  --muted:#6C8290;
  --line:rgba(140,215,225,.14);
  --glass-line:rgba(255,255,255,.10);
  --ok:#38D39F;
  --warn:#FFB25A;
  --err:#FF6B6B;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 22px 56px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(31,214,192,.45),0 12px 32px rgba(31,214,192,.30);
  --r-card:18px;
  --r-input:12px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --maxw:1200px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.8;color:var(--text);background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(140,215,225,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(140,215,225,.04) 1px,transparent 1px);
  background-size:72px 72px;
}
body::after{
  content:"";position:fixed;right:-12%;bottom:-32%;width:68vw;height:68vw;pointer-events:none;z-index:0;
  background:radial-gradient(circle,rgba(31,214,192,.08),transparent 62%);
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.28;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.tabular{font-variant-numeric:tabular-nums;}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{position:relative;z-index:1;padding:104px 0;}
.section--tight{padding:80px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
main{position:relative;z-index:1;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(6,12,20,.45);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:0 8px 26px rgba(0,0,0,.28);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),height .22s var(--ease);
}
.nav-wrap{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:20px;
  transition:height .22s var(--ease);
}
.site-header.is-stuck{background:#070D15;box-shadow:0 14px 36px rgba(0,0,0,.52);border-bottom-color:rgba(140,215,225,.2);}
.site-header.is-stuck .nav-wrap{height:60px;}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-weight:700;font-size:19px;letter-spacing:.01em;}
.brand-mark{color:var(--brand);font-weight:800;letter-spacing:.02em;}
.brand-text{color:var(--text);}
.brand::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-left:7px;transform:translateY(-2px);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:9px 12px;border-radius:12px;font-size:15px;
  color:rgba(233,244,246,.86);white-space:nowrap;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;background:rgba(31,214,192,.10);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--dim);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,214,192,.5);background:rgba(31,214,192,.10);}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center;}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(5,9,15,.96);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
}
.nav-drawer.is-open{display:flex;flex-direction:column;}
.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--line);}
.drawer-body{padding:22px 20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;}
.drawer-link{
  padding:15px 16px;border-radius:14px;font-size:16px;border:1px solid transparent;
  color:var(--text);background:rgba(255,255,255,.03);
  transform:translateY(10px);opacity:0;animation:slideIn .32s var(--ease) forwards;
}
.drawer-link.is-active{color:var(--brand);border-color:rgba(31,214,192,.4);background:rgba(31,214,192,.10);}
.drawer-link:nth-child(1){animation-delay:.04s}
.drawer-link:nth-child(2){animation-delay:.09s}
.drawer-link:nth-child(3){animation-delay:.14s}
.drawer-link:nth-child(4){animation-delay:.19s}
@keyframes slideIn{to{transform:translateY(0);opacity:1;}}
.drawer-foot{margin-top:auto;padding:18px 20px 26px;border-top:1px solid var(--line);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:linear-gradient(120deg,var(--brand),#3FE6E0);color:#04211E;box-shadow:var(--glow);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,214,192,.55),0 16px 38px rgba(31,214,192,.38);}
.btn-primary:active{transform:translateY(1px);}
.btn-secondary{background:rgba(255,255,255,.03);border-color:var(--glass-line);color:var(--text);border-radius:12px;backdrop-filter:blur(10px);}
.btn-secondary:hover{background:rgba(31,214,192,.12);border-color:rgba(31,214,192,.5);color:#fff;transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{padding:0;min-height:auto;border-radius:0;color:var(--brand);background:none;border:0;position:relative;}
.btn-ghost::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);}
.btn-ghost:hover::after{transform:scaleX(1);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-lg{min-height:54px;padding:0 30px;font-size:16px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;letter-spacing:.02em;
  color:var(--brand);background:rgba(31,214,192,.12);border:1px solid rgba(31,214,192,.36);
}
.badge--accent{color:var(--accent);background:rgba(255,178,90,.12);border-color:rgba(255,178,90,.38);}
.badge--muted{color:var(--dim);background:rgba(255,255,255,.05);border-color:var(--line);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 3px rgba(31,214,192,.18);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  padding:6px 14px;border-radius:var(--r-pill);font-size:13px;color:var(--dim);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{color:var(--brand);border-color:rgba(31,214,192,.45);background:rgba(31,214,192,.08);}

/* ---------- KV ---------- */
.cat-kv{
  position:relative;z-index:1;padding:160px 0 84px;
  background-image:linear-gradient(90deg,rgba(5,9,15,.94) 0%,rgba(5,9,15,.72) 48%,rgba(5,9,15,.58) 100%),
                   url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.cat-kv::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,214,192,.5),transparent);
}
.cat-kv .lede{max-width:760px;}
.cat-kv h1{font-size:48px;margin:20px 0 16px;letter-spacing:.01em;}
.cat-kv h1 .hl{color:var(--brand);}
.cat-kv .sub{font-size:18px;color:var(--dim);line-height:1.75;max-width:660px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:7px;}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--muted);}
.breadcrumb .current{color:var(--muted);}
.meta-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:13px;color:var(--dim);}
.meta-line .dot{width:3px;height:3px;border-radius:50%;background:var(--muted);}
.kv-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}

/* ---------- 通用小节标题 ---------- */
.sec-head{max-width:740px;margin-bottom:52px;}
.sec-head h2{font-size:34px;margin:14px 0 14px;}
.sec-head p{color:var(--dim);font-size:16px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 图文交替 ---------- */
.alt-row{align-items:center;margin-bottom:88px;}
.alt-row:last-child{margin-bottom:0;}
.alt-copy h3{font-size:24px;margin-bottom:14px;}
.alt-copy p{color:var(--dim);font-size:16px;margin-bottom:18px;}
.point-list{display:flex;flex-direction:column;gap:10px;}
.point-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text);}
.point-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 0 3px rgba(31,214,192,.14);
}
.alt-media{position:relative;}
.media-frame{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/11;box-shadow:var(--shadow-2);border:1px solid var(--glass-line);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.08),rgba(5,9,15,.74));
}
.media-frame:hover img{transform:scale(1.03);}
.media-cap{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text);
}
.media-cap i{color:var(--brand);}

/* ---------- 数据条 ---------- */
.stat-band{
  background:var(--bg-1);border:1px solid var(--line);border-radius:22px;
  padding:34px 26px;box-shadow:var(--shadow-1);
}
.stat-cell{padding:12px 8px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-num{
  font-size:34px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;line-height:1.2;
}
.stat-num small{font-size:15px;color:var(--dim);font-weight:400;margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--dim);}
.stat-note{margin-top:4px;font-size:13px;color:var(--muted);}

/* ---------- 序列卡 ---------- */
.step-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.step-card{
  position:relative;display:flex;flex-direction:column;gap:10px;
  background:var(--bg-2);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:24px 20px 20px;overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.step-card::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:72px;border-radius:0 3px 3px 0;
  background:var(--brand);transition:width .26s var(--ease),background .26s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,214,192,.4);}
.step-card:hover::before{width:110px;background:var(--accent);}
.step-idx{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.08em;}
.step-card h3{font-size:18px;}
.step-card p{font-size:14px;color:var(--dim);}
.step-bar{margin-top:auto;height:4px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden;}
.step-bar i{display:block;height:100%;border-radius:4px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.step-card:nth-child(1) .step-bar i{width:26%}
.step-card:nth-child(2) .step-bar i{width:52%}
.step-card:nth-child(3) .step-bar i{width:78%}
.step-card:nth-child(4) .step-bar i{width:100%}

/* ---------- FAQ ---------- */
.faq-wrap{align-items:flex-start;}
.faq-aside h2{font-size:32px;margin-bottom:14px;}
.faq-aside p{color:var(--dim);font-size:15px;margin-bottom:20px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  border:1px solid var(--line);border-radius:16px;background:rgba(16,28,40,.5);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(31,214,192,.36);}
.faq-item.is-open{border-color:rgba(31,214,192,.5);background:rgba(16,28,40,.82);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q i{color:var(--brand);transition:transform .22s var(--ease);flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);color:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-item.is-open .faq-a{max-height:340px;}
.faq-a p{padding:0 20px 20px;font-size:15px;color:var(--dim);line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;z-index:1;overflow:hidden;
  background:linear-gradient(120deg,rgba(31,214,192,.14),rgba(124,140,248,.10) 55%,rgba(255,178,90,.10));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  padding:66px 0;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-inner h2{font-size:32px;margin-bottom:12px;}
.cta-inner p{color:var(--dim);font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;background:#040A11;border-top:1px solid var(--line);padding:66px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:36px;}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--dim);max-width:320px;line-height:1.8;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--dim);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--dim);}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}

/* ---------- Foundation 覆盖 ---------- */
.button,.button.primary,.button.secondary{
  background:transparent;border:0;color:inherit;padding:0;margin:0;border-radius:0;font-size:inherit;
}
.callout{background:transparent;border:0;padding:0;margin:0;color:inherit;}
table{border:0;background:transparent;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ---------- 响应式 ---------- */
@media screen and (min-width:1440px){
  :root{--maxw:1320px;}
}
@media screen and (max-width:1279px){
  .main-nav{gap:2px;}
  .nav-link{padding:9px 10px;font-size:14px;}
}
@media screen and (max-width:1023px){
  body{font-size:16px;}
  .section{padding:76px 0;}
  .section--tight{padding:60px 0;}
  .main-nav{display:none;}
  .burger{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .cat-kv{padding:132px 0 64px;}
  .cat-kv h1{font-size:36px;}
  .cat-kv .sub{font-size:16px;}
  .sec-head h2{font-size:27px;}
  .alt-row{margin-bottom:56px;}
  .alt-copy h3{font-size:21px;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--line);padding:16px 6px;}
  .stat-cell:last-child{border-bottom:0;}
  .stat-num{font-size:29px;}
  .step-strip{grid-template-columns:repeat(2,1fr);}
  .faq-aside{margin-bottom:30px;}
  .faq-aside h2{font-size:26px;}
  .cta-inner{padding:52px 0;}
  .cta-inner h2{font-size:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-brand{grid-column:1 / -1;}
}
@media screen and (max-width:639px){
  .container{padding:0 18px;}
  .section{padding:58px 0;}
  .section--tight{padding:48px 0;}
  .cat-kv{padding:118px 0 52px;}
  .cat-kv h1{font-size:31px;}
  .sec-head{margin-bottom:34px;}
  .sec-head h2{font-size:23px;}
  .btn{width:100%;}
  .kv-actions,.cta-actions{flex-direction:column;align-items:stretch;}
  .kv-actions .btn,.cta-actions .btn{width:100%;}
  .step-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{font-size:15px;padding:16px 16px;}
  .faq-a p{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg-0:#05090F;
  --bg-1:#0A121B;
  --bg-2:#101C28;
  --brand:#1FD6C0;
  --brand-2:#39E6D2;
  --accent:#FFB25A;
  --violet:#7C8CF8;
  --text:#E9F4F6;
  --dim:#9AB0BD;
  --muted:#6C8290;
  --line:rgba(140,215,225,.14);
  --glass-line:rgba(255,255,255,.10);
  --ok:#38D39F;
  --warn:#FFB25A;
  --err:#FF6B6B;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 22px 56px rgba(0,0,0,.5);
  --r-card:18px;
  --r-btn:999px;
  --r-input:12px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 88% 6%, rgba(31,214,192,.09), transparent 70%),
    radial-gradient(700px 500px at 4% 88%, rgba(124,140,248,.06), transparent 72%),
    linear-gradient(180deg,#05090F 0%, #070D15 55%, #05090F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(140,215,225,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,215,225,.04) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
  mask-image:radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,214,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.container{max-width:1320px}}
.no-scroll{overflow:hidden}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:var(--nav-h);
  background:rgba(6,12,20,.45);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid var(--glass-line);
  box-shadow:0 8px 30px rgba(0,0,0,.28);
  transition:height .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-stuck{height:60px;background:#070D15;border-bottom-color:rgba(255,255,255,.14);box-shadow:0 12px 34px rgba(0,0,0,.5)}
.nav-wrap{max-width:1200px;height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px}
.brand{display:inline-flex;align-items:baseline;gap:4px;font-size:20px;letter-spacing:.02em;white-space:nowrap}
.brand-mark{font-weight:800;color:var(--brand);text-shadow:0 0 18px rgba(31,214,192,.45)}
.brand-text{font-weight:500;color:var(--text)}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 12px;border-radius:10px;font-size:15px;color:rgba(233,244,246,.86);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);
  box-shadow:0 0 10px rgba(31,214,192,.7);
}
.nav-link:hover{color:#fff;background:rgba(31,214,192,.08)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--glass-line);
  background:rgba(255,255,255,.04);color:var(--dim);cursor:pointer;display:grid;place-items:center;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:#fff;border-color:rgba(31,214,192,.5);background:rgba(31,214,192,.12)}
.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-line);background:rgba(255,255,255,.04);color:var(--text);cursor:pointer}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#04211D;
  box-shadow:0 0 0 1px rgba(31,214,192,.45),0 12px 32px rgba(31,214,192,.30);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,214,192,.6),0 16px 40px rgba(31,214,192,.42)}
.btn-secondary{
  background:rgba(255,255,255,.03);border-color:var(--glass-line);color:var(--text);
  border-radius:12px;
}
.btn-secondary:hover{background:rgba(31,214,192,.12);border-color:rgba(31,214,192,.45);color:#fff}
.btn-ghost{position:relative;padding:10px 2px;border-radius:0;color:var(--brand);background:transparent}
.btn-ghost::after{content:"";position:absolute;left:0;bottom:4px;height:1px;width:100%;background:var(--brand);transform:scaleX(.3);transform-origin:left;transition:transform .24s var(--ease)}
.btn-ghost:hover::after{transform:scaleX(1)}
.btn-sm{padding:10px 20px;font-size:14px}

/* 抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(4,10,16,.86);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;justify-content:flex-start;
  opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{padding:96px 24px 32px;display:flex;flex-direction:column;gap:6px}
.drawer-link{
  padding:16px 8px;font-size:18px;font-weight:600;color:var(--text);border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(14px);transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.nav-drawer.is-open .drawer-link{opacity:1;transform:none}
.nav-drawer.is-open .drawer-link:nth-child(1){transition-delay:.04s}
.nav-drawer.is-open .drawer-link:nth-child(2){transition-delay:.09s}
.nav-drawer.is-open .drawer-link:nth-child(3){transition-delay:.14s}
.nav-drawer.is-open .drawer-link:nth-child(4){transition-delay:.19s}
.drawer-cta{margin:28px 0 0;width:100%;padding:16px}

/* ---------- 文章头 ---------- */
.page-top{padding-top:var(--nav-h)}
.article-hero{
  position:relative;padding:56px 0 48px;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(180deg,rgba(5,9,15,.72),rgba(5,9,15,.94)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.62;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--dim);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(108,130,144,.7)}
.breadcrumb .current{color:var(--muted);max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;border:1px solid rgba(31,214,192,.35);
  background:rgba(31,214,192,.12);color:var(--brand);
}
.badge-accent{border-color:rgba(255,178,90,.38);background:rgba(255,178,90,.12);color:var(--accent)}
.badge-muted{border-color:var(--glass-line);background:rgba(255,255,255,.04);color:var(--dim)}
.article-title{
  font-size:38px;line-height:1.32;font-weight:700;letter-spacing:.01em;
  max-width:860px;margin-bottom:20px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--dim)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--brand);font-size:12px}
.meta-sep{width:1px;height:12px;background:var(--line);display:inline-block}

/* ---------- 主体布局 ---------- */
.article-main{padding:64px 0 88px;position:relative;z-index:1}
.layout-row{align-items:flex-start}
.article-body{
  max-width:840px;font-size:17px;line-height:1.9;color:#D3E3E8;
  background:rgba(16,28,40,.4);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:40px 40px 44px;
  -webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--shadow-1);
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:29px;line-height:1.4;margin:44px 0 18px;padding-left:16px;
  border-left:4px solid var(--brand);color:var(--text);
  box-shadow:-6px 0 18px -8px rgba(31,214,192,.7);
}
.article-body h3{font-size:22px;margin:34px 0 12px;color:var(--text);font-weight:700}
.article-body h4{font-size:18px;margin:26px 0 10px;color:var(--text)}
.article-body p{margin:0 0 1.2em}
.article-body ul{margin:0 0 1.4em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--brand);border-radius:1px;transform:rotate(45deg);box-shadow:0 0 10px rgba(31,214,192,.6)}
.article-body ol{counter-reset:item;margin:0 0 1.4em}
.article-body ol li{position:relative;padding-left:36px;margin-bottom:10px;counter-increment:item}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);position:absolute;left:0;top:4px;
  font-size:12px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;color:var(--dim);line-height:1.85;
  background:rgba(16,28,40,.62);border-left:3px solid var(--brand);border-radius:0 14px 14px 0;
  box-shadow:inset 0 0 44px rgba(31,214,192,.07);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;height:auto;border-radius:12px;margin:26px 0 10px;box-shadow:var(--shadow-1)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(31,214,192,.32);transition:border-color .2s var(--ease)}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body strong{color:#fff;font-weight:700}
.article-body code{background:rgba(124,140,248,.16);color:#C9D2FF;padding:2px 7px;border-radius:6px;font-size:.92em}
.article-body hr{border:0;height:1px;margin:36px 0;background:linear-gradient(90deg,transparent,var(--line),transparent)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:rgba(31,214,192,.09);color:var(--text);font-weight:600}
.article-body tr:hover td{background:rgba(255,255,255,.02)}

.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;padding:64px 20px;
}
.empty-state i{font-size:34px;color:var(--brand);opacity:.85}
.empty-state p{color:var(--dim);font-size:16px}

/* 侧栏 */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:rgba(16,28,40,.55);border:1px solid var(--glass-line);border-radius:var(--r-card);
  padding:22px 22px 24px;
  -webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);
  box-shadow:var(--shadow-1);
}
.side-card h3{font-size:15px;color:var(--text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand);font-size:13px}
.toc-link{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--dim);
  border-left:2px solid transparent;transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
}
.toc-link:hover{color:#fff;background:rgba(31,214,192,.09);border-left-color:var(--brand)}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.8}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--dim)}
.side-list li:last-child{border-bottom:0}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--dim);transition:color .2s var(--ease)}
.side-list a:hover{color:var(--brand)}
.side-list i{font-size:11px;color:var(--muted)}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;font-size:12px;
  border:1px solid var(--glass-line);background:rgba(255,255,255,.04);color:var(--dim);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{color:var(--brand);border-color:rgba(31,214,192,.4);background:rgba(31,214,192,.1)}

/* 上下篇 */
.postnav{padding:0 0 84px}
.postnav-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
.postnav-card{
  position:relative;display:flex;flex-direction:column;gap:8px;padding:22px 24px;border-radius:var(--r-card);
  background:rgba(16,28,40,.5);border:1px solid var(--glass-line);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.postnav-card::before{content:"";position:absolute;left:0;top:22px;width:3px;height:26px;border-radius:3px;background:var(--brand);box-shadow:0 0 14px rgba(31,214,192,.7);transition:background .24s var(--ease)}
.postnav-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.34);box-shadow:var(--shadow-2);background:rgba(16,28,40,.72)}
.postnav-card:hover::before{background:var(--accent)}
.postnav-label{font-size:12px;color:var(--muted);letter-spacing:.06em;padding-left:14px}
.postnav-title{font-size:17px;font-weight:600;color:var(--text);padding-left:14px;line-height:1.55}
.postnav-card span.arrow{padding-left:14px;font-size:13px;color:var(--brand)}

/* 相关推荐 */
.section{padding:0 0 88px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:32px}
.section-head p{color:var(--dim);font-size:15px;margin-top:8px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);box-shadow:0 0 10px rgba(31,214,192,.8)}
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.post-card{
  position:relative;display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--glass-line);background:rgba(16,28,40,.55);
  -webkit-backdrop-filter:blur(16px) saturate(150%);backdrop-filter:blur(16px) saturate(150%);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;z-index:2;width:56px;height:3px;background:var(--brand);
  box-shadow:0 0 18px rgba(31,214,192,.7);
  transition:width .3s var(--ease),transform .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(140,215,225,.3);box-shadow:var(--shadow-2)}
.post-card:hover::before{width:92px;transform:translateX(12px);background:var(--accent);box-shadow:0 0 18px rgba(255,178,90,.6)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .card-media img{transform:scale(1.03)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,9,15,.04),rgba(5,9,15,.74))}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:17px;line-height:1.55;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-excerpt{font-size:14px;line-height:1.75;color:var(--dim);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.card-foot .view{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.card-foot .view i{transition:transform .2s var(--ease)}
.post-card:hover .card-foot .view i{transform:translateX(4px)}

/* FAQ */
.faq-wrap{display:grid;gap:36px;grid-template-columns:minmax(0,320px) minmax(0,1fr);align-items:start}
.faq-side h2{font-size:30px;margin-bottom:14px}
.faq-side p{color:var(--dim);font-size:15px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(16,28,40,.5);overflow:hidden;transition:border-color .22s var(--ease),background .22s var(--ease)}
.faq-item.is-open{border-color:rgba(31,214,192,.4);background:rgba(16,28,40,.75)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;line-height:1.6;
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .22s var(--ease);flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.faq-a p{padding:0 20px 20px;color:var(--dim);font-size:15px;line-height:1.85}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:52px 48px;
  background:
    radial-gradient(600px 320px at 88% 12%, rgba(31,214,192,.18), transparent 70%),
    linear-gradient(135deg,#0C1A24 0%, #09131C 100%);
  border:1px solid rgba(31,214,192,.24);
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;top:-40%;right:-10%;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(31,214,192,.18), transparent 68%);pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;gap:32px;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);align-items:center}
.cta-grid h2{font-size:32px;margin-bottom:12px}
.cta-grid p{color:var(--dim);font-size:15px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;background:#040A11;border-top:1px solid var(--glass-line);
  padding:64px 0 28px;margin-top:24px;
}
.footer-grid{display:grid;gap:36px;grid-template-columns:1.5fr 1fr 1.2fr 1fr}
.footer-brand p{color:var(--dim);font-size:14px;line-height:1.85;margin-top:16px;max-width:320px}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col ul li a{font-size:14px;color:var(--dim);transition:color .2s var(--ease)}
.footer-col ul li a:hover{color:var(--brand)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--dim);line-height:1.6}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:5px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media(max-width:1200px){
  .article-aside{position:static}
}
@media(max-width:1024px){
  .main-nav{display:none}
  .burger{display:grid;place-items:center}
  .nav-actions .btn-primary{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-wrap{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
}
@media(max-width:768px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-wrap{padding:0 18px;gap:14px}
  .article-hero{padding:40px 0 34px}
  .article-title{font-size:30px}
  .article-main{padding:44px 0 60px}
  .article-body{padding:26px 20px 30px;font-size:16px}
  .article-body h2{font-size:24px;margin:34px 0 14px}
  .article-body h3{font-size:19px}
  .section-head h2,.faq-side h2,.cta-grid h2{font-size:24px}
  .section{padding:0 0 64px}
  .postnav-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 24px;border-radius:20px}
  .btn{width:100%}
  .btn-sm,.cta-actions .btn,.postnav-card .btn{width:auto}
}
@media(max-width:520px){
  .article-title{font-size:26px}
  .breadcrumb .current{max-width:220px}
  .footer-grid{grid-template-columns:1fr}
  .article-meta{gap:10px}
  .meta-sep{display:none}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A121B;
  --bg-2:#101C28;
  --brand:#1FD6C0;
  --brand-2:#3AE8D2;
  --accent:#FFB25A;
  --violet:#7C8CF8;
  --text:#E9F4F6;
  --dim:#9AB0BD;
  --muted:#6C8290;
  --line:rgba(140,215,225,.14);
  --glass-line:rgba(255,255,255,.10);
  --ok:#38D39F;
  --warn:#FFB25A;
  --err:#FF6B6B;
  --radius-card:18px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 22px 56px rgba(0,0,0,.5);
  --ease:cubic-bezier(.2,.8,.2,1);
  --container:1200px;
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(140,215,225,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(140,215,225,.045) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 78%);
}
body::after{
  content:"";
  position:fixed;
  right:-18%;
  bottom:-30%;
  width:70vw;
  height:70vw;
  max-width:900px;
  max-height:900px;
  pointer-events:none;
  z-index:0;
  background:radial-gradient(circle,rgba(31,214,192,.08) 0%,rgba(31,214,192,0) 68%);
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
@media (min-width:1440px){:root{--container:1320px}}

/* ===== 基础覆盖 Foundation 默认 ===== */
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;width:100%}
.button,.button.primary,.button.secondary{background:none;color:inherit;padding:0;margin:0;border:0;border-radius:0;font-size:inherit}
table{border:0;border-collapse:collapse;background:transparent}

/* ===== 导航 ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(6,12,20,.45);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 8px 26px rgba(0,0,0,.28);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  background:#070D15;
  border-bottom-color:rgba(140,215,225,.20);
  box-shadow:0 14px 40px rgba(0,0,0,.55);
}
.nav-wrap{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  gap:28px;
  transition:height .22s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-size:20px;letter-spacing:.02em;flex:none}
.brand-mark{font-weight:700;color:var(--brand);letter-spacing:.06em}
.brand-text{font-weight:500;color:var(--text)}
.brand:hover .brand-text{color:var(--brand)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;
  color:rgba(233,244,246,.86);
  padding:6px 0;
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:#fff}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;
  border:1px solid var(--glass-line);
  background:rgba(16,28,40,.55);
  color:var(--dim);
  cursor:pointer;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(31,214,192,.45);background:rgba(31,214,192,.10)}
.burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--glass-line);background:rgba(16,28,40,.6);color:var(--text);cursor:pointer}

.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:70;
  display:none;
  flex-direction:column;
  gap:8px;
  padding:88px 24px 28px;
  background:rgba(6,12,20,.94);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
}
body.nav-open .mobile-drawer{display:flex}
body.nav-open{overflow:hidden}
.drawer-close{align-self:flex-end;width:42px;height:42px;border-radius:12px;border:1px solid var(--glass-line);background:rgba(16,28,40,.7);color:var(--text);cursor:pointer}
.mobile-drawer a.drawer-link{
  padding:16px 4px;
  font-size:17px;
  border-bottom:1px solid var(--line);
  color:var(--text);
  animation:slideUp .28s var(--ease) both;
}
.mobile-drawer a.drawer-link.is-active{color:var(--brand)}
.drawer-cta{margin-top:auto}

@keyframes slideUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-2) 55%,#17C9E0 100%);
  color:#04211E;
  box-shadow:0 0 0 1px rgba(31,214,192,.45),0 12px 32px rgba(31,214,192,.30);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(31,214,192,.65),0 18px 42px rgba(31,214,192,.42);
  color:#04211E;
  filter:brightness(1.08);
}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:rgba(16,28,40,.5);
  border-color:var(--glass-line);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(31,214,192,.12);border-color:rgba(31,214,192,.45);color:#fff}
.btn-line{
  background:transparent;
  border-color:rgba(31,214,192,.4);
  color:var(--brand);
  border-radius:12px;
}
.btn-line:hover{background:rgba(31,214,192,.12);color:#fff}

/* ===== 通用板块 ===== */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;
  border-radius:999px;
  border:1px solid rgba(31,214,192,.32);
  background:rgba(31,214,192,.10);
  color:var(--brand);
  font-size:12.5px;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(31,214,192,.9)}
.h2{font-size:34px;margin-bottom:16px}
.h3{font-size:22px}
.lead{color:var(--dim);font-size:16.5px;max-width:720px}
.meta-line{
  display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;
  color:var(--muted);font-size:13.5px;margin-top:26px;
}
.meta-line span{display:inline-flex;align-items:center;gap:7px}
.meta-line .sep{color:rgba(140,215,225,.3)}

.tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.03em;
  border:1px solid rgba(31,214,192,.32);
  background:rgba(31,214,192,.10);
  color:var(--brand);
}
.tag-accent{border-color:rgba(255,178,90,.36);background:rgba(255,178,90,.12);color:var(--accent)}
.tag-violet{border-color:rgba(124,140,248,.36);background:rgba(124,140,248,.12);color:var(--violet)}

/* ===== 分类 KV ===== */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:158px 0 84px;
  background:var(--bg-0);
}
.hero-media{
  position:absolute;inset:0;
  background-size:cover;
  background-position:center;
  filter:saturate(.85);
  transform:scale(1.04);
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(5,9,15,.95) 0%,rgba(5,9,15,.78) 45%,rgba(10,18,27,.62) 100%);
}
.page-hero .container{position:relative;z-index:2}
.kv-inner{display:block}
.kv-title{
  font-size:50px;
  line-height:1.22;
  letter-spacing:.01em;
  margin-bottom:20px;
  max-width:820px;
}
.kv-sub{color:var(--dim);font-size:17.5px;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

.glass-panel{
  background:rgba(16,28,40,.55);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:26px 24px;
}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  .glass-panel{background:rgba(16,28,40,.92)}
  .site-header{background:rgba(6,12,20,.94)}
}
.panel-title{
  font-size:13px;color:var(--muted);letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:16px;font-weight:600;
}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:13px 0;
  border-bottom:1px solid var(--line);
  font-size:14.5px;
}
.panel-row:last-of-type{border-bottom:0}
.panel-row .k{color:var(--dim)}
.panel-row .v{font-weight:600;font-variant-numeric:tabular-nums;color:var(--text)}
.panel-row .v.brand{color:var(--brand)}
.panel-cta{margin-top:18px;display:block;text-align:center}

/* ===== 席位卡片网格 ===== */
.card-grid{margin-top:8px}
.c-card{
  position:relative;
  display:flex;flex-direction:column;
  height:100%;
  background:var(--bg-2);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  margin-bottom:24px;
}
.c-card::before{
  content:"";
  position:absolute;top:0;left:0;
  width:78px;height:3px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,192,0));
  border-radius:0 3px 3px 0;
  transition:transform .24s var(--ease),background .24s var(--ease);
  z-index:3;
}
.c-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.34);box-shadow:var(--shadow-2)}
.c-card:hover::before{background:linear-gradient(90deg,var(--accent),rgba(255,178,90,0));transform:translateX(12px)}
.c-card-media{
  position:relative;
  display:block;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(140deg,#0d1a24,#0a1119);
}
.c-card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s var(--ease);
}
.c-card-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.10) 0%,rgba(5,9,15,.72) 100%);
}
.c-card:hover .c-card-media img{transform:scale(1.03)}
.c-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.c-card-body h3{font-size:20px}
.c-card-body p{
  color:var(--dim);font-size:15px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.link-more{
  margin-top:auto;
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-size:14px;font-weight:600;
  position:relative;
  align-self:flex-start;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.link-more:hover::after{transform:scaleX(1)}
.link-more i{transition:transform .22s var(--ease)}
.link-more:hover i{transform:translateX(5px)}

/* ===== 数据条 ===== */
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.stat-cell{
  background:var(--bg-1);
  padding:28px 22px;
}
.stat-num{
  font-size:32px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;
  display:flex;align-items:baseline;gap:6px;
}
.stat-num small{font-size:14px;color:var(--dim);font-weight:500}
.stat-label{color:var(--dim);font-size:14px;margin-top:6px}
.stat-track{
  margin-top:14px;height:4px;border-radius:999px;background:rgba(140,215,225,.14);overflow:hidden;
}
.stat-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),#17C9E0)}

/* ===== 两栏：索引 + 内容 ===== */
.index-panel{
  position:sticky;
  top:92px;
  background:rgba(16,28,40,.55);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
}
@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){
  .index-panel{background:rgba(16,28,40,.92)}
}
.index-panel h3{font-size:16px;margin-bottom:14px;color:var(--text)}
.index-list li{border-bottom:1px solid var(--line)}
.index-list li:last-child{border-bottom:0}
.index-list a{
  display:flex;align-items:center;gap:12px;
  padding:13px 2px;
  font-size:14.5px;color:var(--dim);
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.index-list a .idx{
  font-size:12px;color:var(--muted);
  font-variant-numeric:tabular-nums;
  border:1px solid var(--line);border-radius:6px;
  padding:1px 7px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.index-list a:hover{color:var(--text);padding-left:8px}
.index-list a:hover .idx{color:var(--brand);border-color:rgba(31,214,192,.45)}

.content-block{
  background:rgba(16,28,40,.42);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  padding:28px 26px;
  margin-bottom:24px;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.content-block:hover{border-color:rgba(31,214,192,.26);background:rgba(16,28,40,.6)}
.content-block h3{
  font-size:21px;margin-bottom:14px;
  display:flex;align-items:center;gap:12px;
}
.content-block h3::before{
  content:"";width:4px;height:20px;border-radius:2px;background:var(--brand);
  box-shadow:0 0 14px rgba(31,214,192,.6);flex:none;
}
.content-block p{color:var(--dim);font-size:15.5px;margin-bottom:14px}
.content-block p:last-child{margin-bottom:0}
.square-list{display:grid;gap:12px;margin-top:6px}
.square-list li{
  position:relative;
  padding-left:22px;
  color:var(--dim);
  font-size:15.5px;
}
.square-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.square-list li strong{color:var(--text);font-weight:600}

/* ===== FAQ ===== */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-item{
  background:rgba(16,28,40,.5);
  border:1px solid var(--glass-line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item:hover{border-color:rgba(31,214,192,.3)}
.faq-item[open]{border-color:rgba(31,214,192,.4);background:rgba(16,28,40,.75)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;
  font-size:16px;font-weight:600;
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary i{
  color:var(--brand);font-size:14px;flex:none;
  transition:transform .22s var(--ease);
}
.faq-item[open] summary i{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px}
.faq-answer p{color:var(--dim);font-size:15.5px}

/* ===== CTA ===== */
.cta-band{
  position:relative;
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:linear-gradient(120deg,rgba(31,214,192,.10) 0%,rgba(10,18,27,.9) 55%,rgba(124,140,248,.10) 100%);
  padding:76px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-copy{max-width:640px}
.cta-copy h2{font-size:32px;margin-bottom:14px}
.cta-copy p{color:var(--dim);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ===== 页脚 ===== */
.site-footer{
  background:#040A11;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:340px;line-height:1.8}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);letter-spacing:.03em}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{color:var(--dim);font-size:14.5px;transition:color .2s var(--ease),padding-left .2s var(--ease)}
.footer-col ul li a:hover{color:var(--brand);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--dim);font-size:14.5px}
.footer-contact li i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--muted);font-size:13.5px}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .kv-title{font-size:44px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .burger{display:inline-flex}
  .nav-actions .btn{display:none}
  .nav-wrap{gap:16px}
  .section{padding:72px 0}
  .page-hero{padding:130px 0 64px}
  .kv-title{font-size:36px}
  .h2{font-size:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .index-panel{position:static;margin-bottom:24px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .nav-wrap{padding:0 18px;height:64px}
  .site-header.is-stuck .nav-wrap{height:58px}
  .brand{font-size:18px}
  .page-hero{padding:112px 0 52px}
  .kv-title{font-size:30px;line-height:1.3}
  .kv-sub{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:34px}
  .h2{font-size:24px}
  .h3,.content-block h3{font-size:19px}
  .c-card-body h3{font-size:18px}
  .hero-actions .btn{width:100%}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-copy h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .stat-bar{grid-template-columns:1fr}
  .content-block{padding:22px 18px}
  .index-panel{padding:20px 18px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-answer{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --bg-0:#05090F;
  --bg-1:#0A121B;
  --bg-2:#101C28;
  --brand:#1FD6C0;
  --brand-2:#39E6D2;
  --accent:#FFB25A;
  --violet:#7C8CF8;
  --text:#E9F4F6;
  --dim:#9AB0BD;
  --muted:#6C8290;
  --line:rgba(140,215,225,.14);
  --glass-line:rgba(255,255,255,.10);
  --ok:#38D39F;
  --err:#FF6B6B;
  --radius-card:18px;
  --radius-input:12px;
  --shadow-1:0 10px 30px rgba(0,0,0,.35);
  --shadow-2:0 22px 56px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(31,214,192,.45),0 12px 32px rgba(31,214,192,.30);
  --ease:cubic-bezier(.2,.8,.2,1);
  --page:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(140,215,225,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(140,215,225,.055) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  right:-220px;
  bottom:-260px;
  width:760px;
  height:760px;
  background:radial-gradient(circle,rgba(31,214,192,.08),rgba(31,214,192,0) 68%);
  pointer-events:none;
  z-index:0;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),opacity .22s var(--ease)}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.32;color:var(--text)}
h1{font-size:clamp(30px,4.6vw,50px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:22px;line-height:1.45}
h4{font-size:16px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(31,214,192,.28)}

/* Foundation 覆盖 */
.button,.button.primary,.button.secondary,.button.hollow{
  background:transparent;color:var(--text);border:0;border-radius:999px;padding:0;margin:0;
  box-shadow:none;font-size:inherit;
}
.button:hover,.button:focus{background:transparent;color:var(--text)}
.top-bar,.top-bar-left,.top-bar-right{background:transparent;color:var(--text)}
table{border:0;border-collapse:collapse;background:transparent}
.accordion,.accordion-item,.accordion-title,.accordion-content{
  background:transparent;border:0;color:inherit;margin:0;font-size:inherit;
}
.accordion-title{padding:0}
.callout{background:transparent;border:0;margin:0;padding:0}
.reveal{display:none}
.grid-x{margin-left:calc(var(--gutter) / -2);margin-right:calc(var(--gutter) / -2)}
.grid-x>.cell{padding-left:calc(var(--gutter) / 2);padding-right:calc(var(--gutter) / 2)}

.container{
  width:100%;
  max-width:var(--page);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:96px 0;position:relative;z-index:1}
.section--tight{padding:72px 0}
.section--alt{background:linear-gradient(180deg,rgba(10,18,27,.92),rgba(5,9,15,.6))}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;font-weight:600;
}
.section-head .kicker::before{content:"";width:22px;height:1px;background:var(--brand)}
.section-head p{color:var(--dim);margin-top:14px;font-size:16px}
.lead{color:var(--dim)}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:rgba(6,12,20,.45);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 12px 34px rgba(0,0,0,.28);
  transition:background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-stuck{
  background:#070D15;
  border-bottom-color:rgba(140,215,225,.18);
  box-shadow:0 16px 44px rgba(0,0,0,.5);
}
.nav-wrap{
  max-width:1320px;margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:20px;
  transition:height .22s var(--ease);
}
.site-header.is-stuck .nav-wrap{height:60px}
.brand{display:inline-flex;align-items:baseline;gap:2px;font-size:19px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.brand-mark{
  color:var(--brand);
  font-weight:800;
  letter-spacing:.06em;
  text-transform:lowercase;
}
.brand-text{color:var(--text);font-weight:700}
.brand:hover .brand-text{color:var(--brand-2)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:22px}
.nav-link{
  position:relative;
  padding:9px 12px;
  font-size:14.5px;
  color:rgba(233,244,246,.86);
  border-radius:10px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);border-radius:2px;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1);background:linear-gradient(90deg,var(--brand),var(--accent))}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--dim);border:1px solid var(--glass-line);
  background:rgba(16,28,40,.5);
  transition:all .22s var(--ease);
}
.icon-btn:hover{color:#fff;border-color:rgba(31,214,192,.55);background:rgba(31,214,192,.12)}
.burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-line);background:rgba(16,28,40,.6);
  color:var(--text);font-size:18px;align-items:center;justify-content:center;
}
.burger:hover{border-color:rgba(31,214,192,.5)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;letter-spacing:.02em;border-radius:999px;
  padding:14px 28px;font-size:15px;line-height:1;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  border:1px solid transparent;
}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(120deg,var(--brand),#2CE4E0);
  color:#04211E;
  box-shadow:0 0 0 1px rgba(31,214,192,.35),0 12px 28px rgba(31,214,192,.22);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:var(--glow);
  filter:brightness(1.08);
}
.btn-secondary{
  background:rgba(16,28,40,.55);
  border-color:var(--glass-line);
  color:var(--text);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.btn-secondary:hover{
  background:rgba(31,214,192,.12);
  border-color:rgba(31,214,192,.5);
  transform:translateY(-2px);
}
.btn-ghost{
  padding:6px 0;border-radius:0;color:var(--brand);font-size:15px;position:relative;
}
.btn-ghost::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--brand);transform:scaleX(.35);transform-origin:left;
  transition:transform .26s var(--ease);
}
.btn-ghost:hover::after{transform:scaleX(1)}
.btn:active{transform:translateY(1px)}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;
  color:var(--brand);border:1px solid rgba(31,214,192,.42);
  background:rgba(31,214,192,.12);white-space:nowrap;
}
.badge--amber{color:var(--accent);border-color:rgba(255,178,90,.42);background:rgba(255,178,90,.12)}
.badge--violet{color:#B6C0FF;border-color:rgba(124,140,248,.42);background:rgba(124,140,248,.14)}
.badge--muted{color:var(--dim);border-color:var(--glass-line);background:rgba(255,255,255,.05)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}

/* 顶部 KV */
.kv{
  position:relative;
  padding:150px 0 62px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.kv-bg{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;opacity:.42;
}
.kv-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.86) 0%,rgba(5,9,15,.72) 42%,rgba(5,9,15,.96) 100%),
             radial-gradient(760px 340px at 12% 8%,rgba(31,214,192,.16),rgba(31,214,192,0) 70%);
}
.kv .container{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.crumbs a{color:var(--dim)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{opacity:.55}
.crumbs .current{color:var(--muted)}
.kv h1{margin-bottom:16px;max-width:900px}
.kv-sub{color:var(--dim);font-size:17px;max-width:720px;margin-bottom:26px}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--muted);
  padding-top:20px;border-top:1px solid var(--line);
}
.meta-line .dot{width:4px;height:4px;border-radius:50%;background:var(--muted);opacity:.6}
.kv-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:26px}
.kv-fact strong{display:block;font-size:24px;color:var(--brand);font-weight:700}
.kv-fact span{font-size:13px;color:var(--dim)}

/* 时间线 */
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
  margin-top:8px;
}
.tl-node{
  position:relative;
  padding-top:34px;
}
.tl-node::before{
  content:"";
  position:absolute;top:10px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(31,214,192,.55),rgba(31,214,192,.06));
}
.tl-node:last-child::before{background:linear-gradient(90deg,rgba(31,214,192,.55),rgba(31,214,192,0))}
.tl-dot{
  position:absolute;top:4px;left:0;
  width:13px;height:13px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 5px rgba(31,214,192,.14),0 0 16px rgba(31,214,192,.75);
}
.tl-node.is-current .tl-dot{background:var(--accent);box-shadow:0 0 0 5px rgba(255,178,90,.16),0 0 16px rgba(255,178,90,.7)}
.tl-step{font-size:12px;letter-spacing:.14em;color:var(--muted);margin-bottom:8px}
.tl-card{
  background:rgba(16,28,40,.55);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  padding:18px;
  height:100%;
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.4);box-shadow:var(--shadow-1)}
.tl-card h3{font-size:17px;margin-bottom:8px}
.tl-card p{font-size:14px;color:var(--dim);margin-bottom:12px}

/* 通用卡片 */
.u-card{
  position:relative;
  background:rgba(16,28,40,.55);
  border:1px solid var(--glass-line);
  border-radius:var(--radius-card);
  padding:26px;
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(150%);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .26s var(--ease);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .u-card{background:rgba(16,28,40,.94)}
  .btn-secondary{background:rgba(16,28,40,.94)}
  .site-header{background:#070D15}
}
.u-card::before{
  content:"";
  position:absolute;top:0;left:0;height:3px;width:72px;
  background:linear-gradient(90deg,var(--brand),rgba(31,214,192,0));
  border-radius:0 3px 3px 0;
  transition:transform .28s var(--ease),background .28s var(--ease);
}
.u-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.36);box-shadow:var(--shadow-2)}
.u-card:hover::before{transform:translateX(12px);background:linear-gradient(90deg,var(--accent),rgba(255,178,90,0))}

/* 对比卡 */
.compare{
  display:grid;
  grid-template-columns:1fr 1.18fr 1fr;
  gap:20px;
  align-items:stretch;
  margin-top:6px;
}
.compare-card{
  position:relative;
  display:flex;flex-direction:column;
  padding:28px 24px;
  border-radius:var(--radius-card);
  background:rgba(16,28,40,.55);
  border:1px solid var(--glass-line);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.compare-card:hover{transform:translateY(-4px);border-color:rgba(31,214,192,.35)}
.compare-card.is-feature{
  padding:38px 28px;
  background:linear-gradient(180deg,rgba(31,214,192,.12),rgba(16,28,40,.72));
  border-color:rgba(31,214,192,.55);
  box-shadow:0 0 0 1px rgba(31,214,192,.28),0 24px 60px rgba(31,214,192,.16);
  transform:translateY(-16px);
}
.compare-card.is-feature:hover{transform:translateY(-20px)}
.corner{
  position:absolute;top:16px;right:16px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,178,90,.16);color:var(--accent);border:1px solid rgba(255,178,90,.42);
}
.compare-card h3{font-size:20px;margin-bottom:6px}
.compare-card .c-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.benefit-list{display:flex;flex-direction:column;gap:11px;margin-bottom:24px}
.benefit-list li{display:flex;gap:10px;font-size:14.5px;color:var(--dim)}
.benefit-list i{color:var(--brand);margin-top:5px;font-size:12px}
.benefit-list li.off{color:var(--muted)}
.benefit-list li.off i{color:var(--muted)}
.compare-card .c-foot{margin-top:auto}

/* 更新日历 */
.calendar{display:flex;flex-direction:column;gap:14px}
.feed-item{
  display:grid;
  grid-template-columns:96px 1fr auto;
  gap:22px;
  align-items:center;
  padding:20px 22px;
  border-radius:var(--radius-card);
  background:rgba(10,18,27,.72);
  border:1px solid var(--line);
  transition:transform .24s var(--ease),border-color .24s var(--ease),background .24s var(--ease);
}
.feed-item:hover{transform:translateX(6px);border-color:rgba(31,214,192,.4);background:rgba(16,28,40,.7)}
.feed-date{display:flex;flex-direction:column;gap:4px}
.feed-date strong{font-size:20px;color:var(--text);letter-spacing:.01em}
.feed-date span{font-size:12px;color:var(--muted);letter-spacing:.1em}
.feed-body h3{font-size:17px;margin-bottom:6px}
.feed-body p{font-size:14px;color:var(--dim);margin:0}
.feed-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:150px}
.progress{width:150px;height:5px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.progress span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--brand-2))}
.progress span.amber{background:linear-gradient(90deg,var(--accent),#FFD49A)}
.w-100{width:100%}.w-92{width:92%}.w-84{width:84%}.w-70{width:70%}.w-58{width:58%}.w-45{width:45%}
.feed-side .rate{font-size:12px;color:var(--muted)}

/* 长说明 */
.note-card{
  border-radius:var(--radius-card);
  border:1px solid var(--glass-line);
  background:rgba(16,28,40,.5);
  padding:34px;
}
.note-card h2{margin-bottom:20px;font-size:clamp(22px,2.5vw,30px)}
.note-card p{color:var(--dim);font-size:16px;line-height:1.85}
.note-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:22px 0 6px}
.note-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--text);
  padding:12px 14px;border-radius:12px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
}
.note-list i{color:var(--brand);margin-top:6px;font-size:11px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:48px;align-items:start}
.faq-layout .side p{color:var(--dim);font-size:15px;margin-top:14px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(10,18,27,.7);
  overflow:hidden;
  transition:border-color .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(31,214,192,.42);background:rgba(16,28,40,.72)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q .plus{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,214,192,.45);color:var(--brand);font-size:12px;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:rgba(31,214,192,.16)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-a p{padding:0 22px 22px;color:var(--dim);font-size:15px;line-height:1.8;margin:0}

/* CTA */
.cta-band{
  position:relative;z-index:1;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(620px 260px at 86% 12%,rgba(31,214,192,.16),rgba(31,214,192,0) 70%),
    linear-gradient(180deg,rgba(10,18,27,.95),rgba(5,9,15,.95));
  padding:78px 0;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:44px;align-items:center}
.cta-grid h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-grid p{color:var(--dim);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-points{display:flex;flex-wrap:wrap;gap:22px;margin-top:24px;font-size:13px;color:var(--muted)}
.cta-points span{display:inline-flex;align-items:center;gap:7px}
.cta-points i{color:var(--brand);font-size:12px}

/* 页脚 */
.site-footer{
  position:relative;z-index:1;
  background:#040A11;
  border-top:1px solid var(--line);
  padding:70px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.1fr 1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{color:var(--dim);font-size:14.5px;margin-top:16px;max-width:340px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:var(--dim)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:var(--dim);align-items:flex-start}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:12px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding-top:24px;font-size:13px;color:var(--muted);
}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(6,12,20,.94);
  backdrop-filter:blur(20px) saturate(150%);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  transform:translateY(-100%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;
  padding:88px 24px 32px;
}
.drawer.is-open{transform:translateY(0)}
.drawer-close{
  position:absolute;top:20px;right:20px;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--glass-line);color:var(--text);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:auto}
.drawer-nav a{
  padding:16px 6px;font-size:18px;font-weight:600;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.07);
  opacity:0;transform:translateY(14px);
}
.drawer.is-open .drawer-nav a{animation:slideUp .34s var(--ease) forwards}
.drawer.is-open .drawer-nav a:nth-child(1){animation-delay:.04s}
.drawer.is-open .drawer-nav a:nth-child(2){animation-delay:.09s}
.drawer.is-open .drawer-nav a:nth-child(3){animation-delay:.14s}
.drawer.is-open .drawer-nav a:nth-child(4){animation-delay:.19s}
.drawer-nav a.is-active{color:var(--brand)}
@keyframes slideUp{to{opacity:1;transform:translateY(0)}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1279px){
  :root{--page:1160px}
}
@media (max-width:1023px){
  :root{--gutter:18px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .main-nav{display:none}
  .burger{display:inline-flex}
  .kv{padding:124px 0 48px}
  .timeline{grid-template-columns:1fr;gap:0;padding-left:22px}
  .tl-node{padding:0 0 26px 0}
  .tl-node::before{left:-22px;top:0;bottom:0;right:auto;width:2px;height:auto;background:linear-gradient(180deg,rgba(31,214,192,.5),rgba(31,214,192,.08))}
  .tl-node:last-child::before{display:none}
  .tl-dot{left:-22px;top:6px;transform:translateX(-5.5px)}
  .compare{grid-template-columns:1fr;gap:16px}
  .compare-card.is-feature{transform:none;padding:30px 24px}
  .compare-card.is-feature:hover{transform:translateY(-4px)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:26px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
  .note-list{grid-template-columns:1fr}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .nav-wrap{padding:0 18px;gap:12px}
  .nav-actions .icon-btn{display:none}
  .kv{padding:112px 0 40px}
  .kv-sub{font-size:15.5px}
  .kv-facts{gap:18px}
  .kv-fact strong{font-size:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .u-card,.note-card{padding:22px}
  .feed-item{grid-template-columns:1fr;gap:14px;padding:18px}
  .feed-side{align-items:flex-start;min-width:0}
  .progress{width:100%}
  .btn{width:100%}
  .btn-ghost{width:auto}
  .cta-actions{flex-direction:column;align-items:stretch}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}