/* roulang page: index */
:root{
  --bg-abyss:#05080F;
  --bg-deep:#0A1020;
  --bg-elev:#101A2E;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(120,200,255,.14);
  --line-strong:rgba(46,211,232,.32);
  --brand-cyan:#2ED3E8;
  --brand-indigo:#4A5CFF;
  --accent-amber:#FFB03A;
  --accent-magenta:#FF4E88;
  --ok:#35D6A0;
  --warn:#FFC24A;
  --err:#FF6B6B;
  --text-hi:#EAF2FF;
  --text-mid:#9FB2CE;
  --text-low:#6B7C99;
  --radius-s:12px;
  --radius-m:16px;
  --radius-l:20px;
  --shadow-card:0 8px 30px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(46,211,232,.28);
  --shadow-glow-hi:0 14px 38px rgba(46,211,232,.45);
  --shell-w:232px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-abyss);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--brand-cyan);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#7CE7F5}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text-hi)}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;z-index:200;padding:10px 16px;background:var(--brand-cyan);color:#04121a;border-radius:0 0 10px 0}
.skip:focus{left:0}

/* ============ 左侧 App Shell ============ */
.shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--shell-w);
  display:flex;flex-direction:column;gap:16px;
  padding:18px 14px 22px;
  background:linear-gradient(180deg,rgba(16,26,46,.94),rgba(5,8,15,.97));
  border-right:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:80;
  transition:transform .24s ease-out;
}
.shell::after{
  content:"";position:absolute;right:-1px;top:0;bottom:0;width:1px;
  background:linear-gradient(180deg,transparent,rgba(46,211,232,.45),transparent);
  opacity:.7;pointer-events:none;
}
.logo{display:flex;align-items:center;gap:11px;height:56px;padding:0 6px;border-radius:var(--radius-s)}
.logo__mark{
  flex:0 0 40px;height:40px;border-radius:13px;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  display:grid;place-items:center;color:#04121A;
  box-shadow:0 8px 22px rgba(46,211,232,.32);
}
.logo__mark svg{width:20px;height:20px;stroke:#04121A;stroke-width:2.2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.logo__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.logo__text b{font-size:15px;letter-spacing:.01em;white-space:nowrap}
.logo__text i{font-style:normal;font-size:11.5px;color:var(--text-low);letter-spacing:.06em;white-space:nowrap}
.nav-group{display:flex;flex-direction:column;gap:6px}
.nav-title{font-size:11.5px;color:var(--text-low);letter-spacing:.14em;padding:6px 12px 2px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
  border-radius:var(--radius-s);color:var(--text-mid);font-size:15px;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;opacity:.9}
.nav-item:hover{color:var(--text-hi);background:var(--glass-strong)}
.nav-item.is-active{
  color:var(--text-hi);
  background:rgba(46,211,232,.10);
  box-shadow:inset 0 0 0 1px rgba(46,211,232,.22),0 0 24px rgba(46,211,232,.12);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;background:var(--brand-cyan);
  box-shadow:0 0 12px rgba(46,211,232,.85);
}
.shell-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding:0 4px}
.shell-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;height:42px;
  border-radius:999px;font-size:14px;font-weight:600;color:#04121A;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.shell-cta:hover{color:#04121A;transform:translateY(-2px);box-shadow:var(--shadow-glow-hi)}
.shell-cta:active{transform:translateY(0);filter:brightness(.94)}
.shell-foot p{margin:0;font-size:12.5px;color:var(--text-low);line-height:1.7}
.shell-foot p span{display:block}

/* 移动端顶栏 */
.topbar{
  display:none;position:sticky;top:0;z-index:70;height:56px;
  align-items:center;gap:12px;padding:0 16px;
  background:rgba(10,16,32,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.topbar .logo__mark{flex:0 0 34px;height:34px;border-radius:11px}
.topbar .logo__text b{font-size:14px}
.topbar .logo__text i{font-size:10.5px}
.burger{
  margin-left:auto;width:38px;height:38px;border-radius:11px;
  display:grid;place-items:center;color:var(--text-hi);
  border:1px solid var(--line);background:var(--glass);
  transition:background .2s ease,transform .2s ease;
}
.burger:hover{background:var(--glass-strong)}
.burger:active{transform:scale(.96)}
.backdrop{
  position:fixed;inset:0;background:rgba(5,8,15,.6);backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .22s ease;z-index:75;
}
.backdrop.is-open{opacity:1;visibility:visible}

/* ============ 主内容区 ============ */
.page{margin-left:var(--shell-w);min-height:100vh;background:radial-gradient(1200px 600px at 78% -10%,rgba(74,92,255,.16),transparent 62%),var(--bg-abyss)}
.container{width:min(1280px,100% - 64px);margin:0 auto}
.section{padding:88px 0}
.section--tight{padding-top:56px}

/* 倒计时条 */
.countdown{
  position:sticky;top:0;z-index:50;
  background:rgba(10,16,32,.78);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(46,211,232,.18);
}
.countdown::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.75),transparent);
  opacity:.5;
}
.countdown__inner{
  width:min(1280px,100% - 64px);margin:0 auto;height:52px;
  display:flex;align-items:center;gap:20px;
}
.countdown__label{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-mid);white-space:nowrap}
.countdown__label i{color:var(--brand-cyan)}
.countdown__label b{color:var(--text-hi);font-weight:600}
.clock{display:flex;align-items:center;gap:8px;margin-left:auto}
.clock__unit{display:flex;align-items:baseline;gap:4px}
.clock__num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;color:var(--accent-amber);letter-spacing:.02em;
  min-width:2ch;text-align:center;
}
.clock__num.urgent{color:var(--accent-magenta)}
.clock__unit span{font-size:12px;color:var(--text-low)}
.countdown__cta{
  flex:0 0 auto;height:32px;padding:0 16px;border-radius:999px;
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--brand-cyan);border:1px solid var(--line-strong);background:rgba(46,211,232,.08);
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.countdown__cta:hover{background:rgba(46,211,232,.18);color:#CFF8FF;transform:translateY(-1px)}

/* Hero */
.hero-wrap{padding:28px 0 0}
.hero{
  position:relative;border-radius:24px;overflow:hidden;
  padding:64px 56px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:#05080F url("/assets/images/backpic/back-1.png") center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.74),rgba(5,8,15,.88) 58%,var(--bg-abyss)),
             radial-gradient(700px 320px at 12% 8%,rgba(46,211,232,.20),transparent 66%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(120,200,255,.7) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,200,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero__grid{
  position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;
  gap:40px;align-items:center;
}
.brandline{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--brand-cyan);letter-spacing:.12em;margin-bottom:16px}
.brandline::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--brand-cyan),transparent)}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.15;letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{font-size:17px;color:var(--text-mid);max-width:640px;line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:999px;font-size:15.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease;
}
.btn-primary{
  color:#04121A;background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{color:#04121A;transform:translateY(-2px);box-shadow:var(--shadow-glow-hi)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{
  color:var(--text-hi);border:1px solid var(--line-strong);background:rgba(46,211,232,.06);
}
.btn-ghost:hover{color:#CFF8FF;background:rgba(46,211,232,.16);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}
.hero__stats{
  display:flex;flex-direction:column;gap:14px;
  padding:24px;border-radius:var(--radius-l);
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero__stats h2{font-size:14px;letter-spacing:.1em;color:var(--text-low);font-weight:600;margin-bottom:2px}
.stat{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid rgba(120,200,255,.10)}
.stat:last-child{border-bottom:0;padding-bottom:0}
.stat span{font-size:14px;color:var(--text-mid)}
.stat b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:20px;color:var(--text-hi)}
.stat b.ok{color:var(--ok)}

/* 通用板块头 */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.3}
.sec-head p{margin:10px 0 0;color:var(--text-mid);font-size:15px;max-width:620px}
.sec-head .link-more{font-size:14px;color:var(--brand-cyan);border-bottom:1px solid rgba(46,211,232,.4);padding-bottom:2px;transition:border-color .2s ease,color .2s ease}
.sec-head .link-more:hover{border-color:var(--brand-cyan);color:#CFF8FF}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--brand-cyan);margin-bottom:12px}

/* 时间轴卖点 */
.timeline{display:flex;flex-direction:column}
.tl-item{
  display:grid;grid-template-columns:64px 1fr;gap:24px;align-items:start;
  padding:26px 0;border-bottom:1px solid rgba(120,200,255,.10);
  transition:background .25s ease;
}
.tl-item:first-child{border-top:1px solid rgba(120,200,255,.10)}
.tl-item:hover{background:linear-gradient(90deg,rgba(46,211,232,.05),transparent 70%)}
.tl-num{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--brand-cyan);
  border:1px solid rgba(46,211,232,.45);background:rgba(46,211,232,.07);
  box-shadow:0 0 22px rgba(46,211,232,.14);
}
.tl-body h3{font-size:20px;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-body p{margin:0;color:var(--text-mid);font-size:15px;max-width:720px}
.badge{
  display:inline-flex;align-items:center;gap:5px;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--brand-cyan);
  background:rgba(46,211,232,.09);border:1px solid rgba(46,211,232,.28);
}
.badge--amber{color:var(--accent-amber);background:rgba(255,176,58,.10);border-color:rgba(255,176,58,.32)}
.badge--magenta{color:var(--accent-magenta);background:rgba(255,78,136,.10);border-color:rgba(255,78,136,.34)}

/* 图墙 */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}
.tile{
  position:relative;overflow:hidden;border-radius:var(--radius-l);
  border:1px solid var(--line);background:var(--bg-elev);
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.05) 30%,rgba(5,8,15,.86));
}
.tile figcaption{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
  font-size:16px;font-weight:600;color:var(--text-hi);
  transition:transform .25s ease;
}
.tile figcaption small{display:block;font-size:12.5px;color:var(--text-mid);font-weight:400;margin-top:5px}
.tile:hover{border-color:rgba(46,211,232,.45);box-shadow:0 14px 40px rgba(0,0,0,.5),0 0 0 1px rgba(46,211,232,.18)}
.tile:hover img{transform:scale(1.04)}
.tile:hover figcaption{transform:translateY(-2px)}
.tile--a{grid-column:span 6;height:340px}
.tile--b{grid-column:span 3;height:340px}
.tile--c{grid-column:span 3;height:340px}
.tile--d{grid-column:span 4;height:260px}
.tile--e{grid-column:span 4;height:260px}
.tile--f{grid-column:span 4;height:260px}
.img-fallback{
  position:absolute;inset:0;display:grid;place-items:center;
  background:var(--glass);color:var(--brand-cyan);font-size:26px;font-weight:700;
  letter-spacing:.1em;
}

/* 资讯列表 CMS 区 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
  display:flex;flex-direction:column;padding:24px;border-radius:var(--radius-m);
  background:var(--glass);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.055)}
.news-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.news-card__time{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:13px;color:var(--text-low)}
.news-card__title{font-size:18px;line-height:1.5;margin-bottom:10px}
.news-card__title a{color:var(--text-hi)}
.news-card__title a:hover{color:var(--brand-cyan)}
.news-card__title span{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  margin:0 0 18px;font-size:14px;color:var(--text-mid);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__more{
  margin-top:auto;display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:600;color:var(--brand-cyan);
}
.news-card__more i{transition:transform .2s ease}
.news-card__more:hover i{transform:translateX(3px)}
.empty{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;gap:10px;
  padding:52px 24px;text-align:center;border-radius:var(--radius-m);
  background:var(--glass);border:1px dashed rgba(120,200,255,.26);color:var(--text-mid);
}
.empty i{font-size:26px;color:var(--brand-cyan)}
.empty strong{color:var(--text-hi);font-size:16px}
.skeleton{height:180px;border-radius:var(--radius-m);border:1px solid var(--line);background:linear-gradient(90deg,rgba(46,211,232,.06),rgba(46,211,232,.14),rgba(46,211,232,.06));background-size:200% 100%;animation:shimmer 1.4s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* 入口 CTA */
.entry{
  position:relative;border-radius:var(--radius-l);padding:48px;
  background:linear-gradient(150deg,rgba(16,26,46,.92),rgba(10,16,32,.92));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  overflow:hidden;
}
.entry::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.85),transparent);
}
.entry__grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.entry h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.entry p.lead{color:var(--text-mid);font-size:15px}
.perks{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.perk{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-mid)}
.perk i{color:var(--ok);margin-top:5px}
.form-card{
  padding:26px;border-radius:var(--radius-m);
  background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-mid);margin-bottom:8px}
.field input,.field textarea{
  width:100%;padding:13px 14px;border-radius:var(--radius-s);
  background:rgba(5,8,15,.6);border:1px solid var(--line);
  color:var(--text-hi);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(46,211,232,.65);
  box-shadow:0 0 0 3px rgba(46,211,232,.16);
}
.field.has-error input,.field.has-error textarea{border-color:rgba(255,107,107,.7)}
.field .err-msg{display:none;margin-top:7px;font-size:13px;color:var(--err)}
.field.has-error .err-msg{display:flex;align-items:center;gap:6px}
.form-card .btn{width:100%}
.form-note{font-size:12.5px;color:var(--text-low);margin:12px 0 0;text-align:center}
.form-success{
  display:none;flex-direction:column;align-items:center;gap:10px;text-align:center;
  padding:40px 20px;border-radius:var(--radius-m);
  background:rgba(53,214,160,.08);border:1px solid rgba(53,214,160,.4);
}
.form-success.is-visible{display:flex}
.form-success i{font-size:28px;color:var(--ok)}
.form-success strong{font-size:17px}
.form-success span{font-size:14px;color:var(--text-mid)}

/* FAQ */
.faq-list{max-width:880px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  border-radius:var(--radius-m);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(12px);
  overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.05)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;cursor:pointer;list-style:none;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:17px;font-weight:500;color:var(--brand-cyan);
  border:1px solid rgba(46,211,232,.4);transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 22px;color:var(--text-mid);font-size:15px;animation:fadeIn .24s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* 页脚 */
.footer{
  margin-top:56px;padding:64px 0 28px;
  background:linear-gradient(180deg,rgba(10,16,32,.4),rgba(5,8,15,.95));
  border-top:1px solid transparent;
  position:relative;
}
.footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.6),transparent);
}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer h3{font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer p,.footer a,.footer li{font-size:14px;color:var(--text-mid)}
.footer li{margin-bottom:10px}
.footer a:hover{color:var(--brand-cyan)}
.footer__brand .logo{margin-bottom:16px;padding:0}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.footer__tags span{
  font-size:12.5px;padding:5px 11px;border-radius:999px;
  background:rgba(46,211,232,.08);border:1px solid rgba(46,211,232,.22);color:var(--text-mid);
}
.footer__bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(120,200,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-low);
}

/* ============ 响应式 ============ */
@media (max-width:1199px) and (min-width:1024px){
  :root{--shell-w:76px}
  .shell{padding:16px 10px;align-items:center}
  .logo__text,.nav-label,.nav-title,.shell-foot p{display:none}
  .logo{justify-content:center;padding:0}
  .nav-item{justify-content:center;padding:0;width:48px}
  .nav-item.is-active::before{left:-2px}
  .shell-cta{width:48px;height:48px;padding:0}
  .shell-cta span{display:none}
  .nav-item::after{
    content:attr(data-tip);position:absolute;left:60px;top:50%;transform:translateY(-50%) scale(.95);
    background:rgba(10,16,32,.96);border:1px solid var(--line);color:var(--text-hi);
    font-size:12.5px;padding:6px 11px;border-radius:8px;white-space:nowrap;
    opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;
  }
  .nav-item:hover::after{opacity:1;transform:translateY(-50%) scale(1)}
}
@media (max-width:1023px){
  .shell{width:280px;transform:translateX(-100%);box-shadow:24px 0 50px rgba(0,0,0,.5)}
  .shell.is-open{transform:translateX(0)}
  .page{margin-left:0}
  .topbar{display:flex}
  .countdown{top:56px}
  .countdown__inner{width:calc(100% - 32px);height:44px;gap:12px}
  .countdown__label b{display:none}
  .clock__num{font-size:19px}
  .clock__unit span{font-size:11px}
  .container{width:calc(100% - 40px)}
  .section{padding:64px 0}
  .hero{padding:44px 28px}
  .hero__grid{grid-template-columns:1fr;gap:28px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .entry{padding:32px}
  .entry__grid{grid-template-columns:1fr;gap:28px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .hero{padding:36px 20px;background-position:center top}
  .hero::before{background:linear-gradient(180deg,rgba(5,8,15,.85),rgba(5,8,15,.93) 60%,var(--bg-abyss))}
  .hero__sub{font-size:15.5px}
  .btn{height:46px;padding:0 20px;font-size:15px}
  .hero__actions .btn{flex:1 1 100%}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-num{width:42px;height:42px;font-size:13px}
  .wall{grid-template-columns:1fr}
  .tile--a,.tile--b,.tile--c,.tile--d,.tile--e,.tile--f{grid-column:span 12;height:220px}
  .news-grid{grid-template-columns:1fr}
  .entry{padding:24px 18px}
  .sec-head{margin-bottom:26px}
  .footer__grid{grid-template-columns:1fr;gap:24px}
  .footer__bottom{flex-direction:column}
}
@media (max-width:520px){
  .container{width:calc(100% - 28px)}
  .countdown__cta{display:none}
  .clock__num{font-size:17px}
  .section{padding:48px 0}
}

/* roulang page: article */
:root{
  --bg-abyss:#05080F;
  --bg-deep:#0A1020;
  --bg-elev:#101A2E;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --glass-brd:rgba(120,200,255,.14);
  --brand-cyan:#2ED3E8;
  --brand-indigo:#4A5CFF;
  --accent-amber:#FFB03A;
  --accent-magenta:#FF4E88;
  --text-hi:#EAF2FF;
  --text-mid:#9FB2CE;
  --text-low:#6B7C99;
  --ok:#35D6A0;
  --warn:#FFC24A;
  --err:#FF6B6B;
  --radius-sm:12px;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-glass:0 8px 30px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(46,211,232,.28);
  --sidebar-w:232px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-abyss);
  color:var(--text-hi);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-cyan);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:#7BE9F7}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(46,211,232,.28)}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-abyss)}
::-webkit-scrollbar-thumb{background:rgba(120,200,255,.18);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(120,200,255,.3)}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ============ Shell ============ */
.shell{display:flex;min-height:100vh}
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  display:flex;flex-direction:column;
  padding:20px 14px;
  background:linear-gradient(180deg,rgba(16,26,46,.92),rgba(5,8,15,.96));
  backdrop-filter:blur(14px);
  border-right:1px solid rgba(120,200,255,.12);
  z-index:60;
}
.sidebar::after{
  content:"";position:absolute;top:0;right:-1px;width:1px;height:100%;
  background:linear-gradient(180deg,rgba(46,211,232,.45),transparent 45%,rgba(74,92,255,.28));
  pointer-events:none;
}
.logo{display:flex;align-items:center;gap:10px;min-height:56px;padding:6px 8px;color:var(--text-hi)}
.logo:hover{color:var(--text-hi)}
.logo__mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:0 6px 18px rgba(46,211,232,.32);
}
.logo__mark svg{width:20px;height:20px;fill:none;stroke:#04121B;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo__text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.logo__text b{font-size:16px;letter-spacing:.02em;white-space:nowrap}
.logo__text i{font-style:normal;font-size:11px;color:var(--text-low);letter-spacing:.16em}

.nav-group{margin-top:18px;display:flex;flex-direction:column;gap:6px}
.nav-title{font-size:12px;letter-spacing:.2em;color:var(--text-low);padding:0 10px 8px}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:12px;
  color:var(--text-mid);font-size:15px;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:inherit}
.nav-item:hover{background:var(--glass);color:var(--text-hi)}
.nav-item.is-active{background:rgba(46,211,232,.1);color:var(--text-hi)}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;
  background:var(--brand-cyan);box-shadow:0 0 14px rgba(46,211,232,.75);
}
.sidebar__foot{margin-top:auto;padding:16px 8px 4px;border-top:1px solid rgba(120,200,255,.1)}
.sidebar__foot .btn{width:100%;justify-content:center;margin-bottom:12px}
.sidebar__foot p{font-size:12.5px;color:var(--text-low);line-height:1.7}
.sidebar-mask{display:none}

.main-area{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column}

/* ============ Topbar (mobile) ============ */
.topbar{
  display:none;position:sticky;top:0;z-index:50;height:56px;
  align-items:center;gap:14px;padding:0 16px;
  background:rgba(10,16,32,.88);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(120,200,255,.12);
}
.topbar__burger{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--glass-brd);
  background:var(--glass);color:var(--text-hi);display:grid;place-items:center;cursor:pointer;
}
.topbar__brand{display:flex;align-items:center;gap:8px;color:var(--text-hi);font-size:15px}
.topbar__brand .logo__mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.topbar__brand .logo__mark svg{width:16px;height:16px}
.topbar__spacer{margin-left:auto}

/* ============ Buttons / badges ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,opacity .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04121B;box-shadow:var(--shadow-glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,211,232,.45);color:#04121B}
.btn--primary:active{transform:translateY(0);filter:brightness(.94)}
.btn--ghost{background:transparent;border-color:rgba(120,200,255,.32);color:var(--text-hi)}
.btn--ghost:hover{background:var(--glass);border-color:var(--brand-cyan);color:var(--text-hi);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--sm{padding:9px 18px;font-size:13.5px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12.5px;line-height:1.6;
  background:var(--glass);border:1px solid var(--glass-brd);color:var(--text-mid);
}
.badge--cyan{color:var(--brand-cyan);border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.08)}
.badge--amber{color:var(--accent-amber);border-color:rgba(255,176,58,.4);background:rgba(255,176,58,.08)}
.badge--magenta{color:var(--accent-magenta);border-color:rgba(255,78,136,.42);background:rgba(255,78,136,.1)}

.glass{
  background:var(--glass);
  border:1px solid var(--glass-brd);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
}

/* ============ Article hero ============ */
.status-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin:28px auto 0;padding:10px 18px;max-width:1180px;
  font-size:13.5px;color:var(--text-mid);
  background:var(--glass);border:1px solid var(--glass-brd);border-radius:var(--radius-pill);
}
.status-bar__dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px rgba(53,214,160,.9)}
.status-bar__sep{width:1px;height:14px;background:rgba(120,200,255,.24)}
.status-bar__link{margin-left:auto;font-size:13.5px}

.article-hero{
  position:relative;
  padding:44px 0 40px;
  background:
    linear-gradient(180deg,rgba(5,8,15,.86),var(--bg-abyss) 92%),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid rgba(120,200,255,.1);
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:linear-gradient(rgba(46,211,232,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(46,211,232,.6) 1px,transparent 1px);
  background-size:64px 64px;
}
.breadcrumb{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-low)}
.breadcrumb a{color:var(--brand-cyan)}
.breadcrumb a:hover{color:#7BE9F7;text-decoration:underline}
.breadcrumb span{color:var(--text-low)}
.breadcrumb .crumb-now{color:var(--text-mid);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-hero h1{
  position:relative;
  margin:22px 0 20px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.18;
  letter-spacing:-.01em;
  font-weight:800;
  max-width:900px;
}
.article-hero h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-meta{
  position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--text-mid);
}
.article-meta .vline{width:1px;height:14px;background:rgba(120,200,255,.24)}
.article-meta .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text-hi)}
.article-lead{
  position:relative;max-width:780px;margin-top:20px;
  font-size:16px;line-height:1.9;color:#C7D6EC;
}

/* ============ Article layout ============ */
.article-main{padding:56px 0 40px;background:var(--bg-deep)}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 282px;
  gap:44px;align-items:start;
}
.article-panel{
  min-width:0;
  background:rgba(16,26,46,.62);
  border:1px solid var(--glass-brd);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.06);
  padding:38px 40px 34px;
}
.article-body{max-width:760px;color:#C9D8ED;font-size:16px;line-height:1.9}
.article-body p{margin:0 0 20px}
.article-body strong{color:var(--text-hi)}
.article-body h2{
  margin:48px 0 18px;padding-left:14px;
  font-size:clamp(22px,2.4vw,27px);line-height:1.35;color:var(--text-hi);
  border-left:3px solid var(--brand-cyan);
}
.article-body h3{margin:32px 0 12px;font-size:20px;line-height:1.5;color:var(--text-hi)}
.article-body h4{margin:24px 0 10px;font-size:17px;color:var(--text-hi)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:2px}
.article-body li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-cyan);box-shadow:0 0 10px rgba(46,211,232,.7);
}
.article-body ol{counter-reset:li}
.article-body ol li::before{counter-increment:li;content:counter(li);width:auto;height:auto;background:none;box-shadow:none;font-family:var(--font-num);font-size:13px;color:var(--brand-cyan);top:2px;left:0}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-brd);border-left:3px solid var(--accent-amber);
  color:#D5E2F4;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-card);border:1px solid var(--glass-brd);margin:26px 0}
.article-body a{color:var(--brand-cyan);border-bottom:1px dashed rgba(46,211,232,.5)}
.article-body a:hover{color:#7BE9F7;border-bottom-color:#7BE9F7}
.article-body code{
  font-family:var(--font-num);font-size:14px;padding:2px 7px;border-radius:8px;
  background:rgba(46,211,232,.1);border:1px solid rgba(46,211,232,.2);color:#9DEBF6;
}
.article-body pre{
  margin:26px 0;padding:18px 20px;border-radius:var(--radius-card);overflow-x:auto;
  background:rgba(5,8,15,.72);border:1px solid var(--glass-brd);
}
.article-body pre code{background:none;border:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid rgba(120,200,255,.14)}
.article-body th{color:var(--text-hi);font-weight:600;background:rgba(46,211,232,.06)}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{margin:36px 0;border:none;height:1px;background:linear-gradient(90deg,rgba(46,211,232,.5),transparent)}

.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--radius-card);
  background:var(--glass);border:1px dashed rgba(120,200,255,.28);
}
.empty-state i{font-size:30px;color:var(--brand-cyan);margin-bottom:16px;display:block}
.empty-state h2{margin:0 0 10px;font-size:22px;color:var(--text-hi)}
.empty-state p{margin:0 0 22px;color:var(--text-mid);font-size:15px}

.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  margin-top:36px;padding-top:24px;border-top:1px solid rgba(120,200,255,.14);
}
.article-tags .label{font-size:13px;color:var(--text-low);margin-right:4px}

/* ============ Aside ============ */
.article-aside{position:sticky;top:28px;display:flex;flex-direction:column;gap:20px}
.toc{padding:20px 18px}
.toc__title{font-size:13px;letter-spacing:.18em;color:var(--text-low);margin-bottom:12px}
.toc ul{display:flex;flex-direction:column;gap:4px;max-height:44vh;overflow:auto}
.toc a{
  display:block;padding:7px 10px;border-radius:10px;
  font-size:14px;color:var(--text-mid);line-height:1.6;
  border-left:2px solid transparent;
}
.toc a:hover{background:var(--glass);color:var(--text-hi)}
.toc a.is-current{color:var(--brand-cyan);border-left-color:var(--brand-cyan);background:rgba(46,211,232,.08)}
.toc__empty{font-size:13px;color:var(--text-low)}
.aside-cta{padding:22px 20px;background:linear-gradient(160deg,rgba(46,211,232,.12),rgba(74,92,255,.08));border:1px solid var(--glass-brd);border-radius:var(--radius-card)}
.aside-cta h3{font-size:17px;margin-bottom:10px}
.aside-cta p{font-size:13.5px;color:var(--text-mid);line-height:1.75;margin-bottom:16px}
.aside-cta .btn{width:100%;justify-content:center}

/* ============ Related ============ */
.section{padding:88px 0}
.section--deep{background:var(--bg-abyss)}
.section__head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.section__head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;letter-spacing:-.005em}
.section__head p{margin-top:10px;font-size:15px;color:var(--text-mid);max-width:620px}
.link-more{font-size:14.5px;color:var(--brand-cyan);border-bottom:1px solid rgba(46,211,232,.35);padding-bottom:2px}
.link-more:hover{border-bottom-color:#7BE9F7}

.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--glass-brd);border-radius:var(--radius-card);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(46,211,232,.45);box-shadow:0 16px 40px rgba(0,0,0,.45)}
.news-card__media{position:relative;height:168px;overflow:hidden;background:linear-gradient(135deg,#0C1526,#131F36)}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-card__media img{transform:scale(1.05)}
.news-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(5,8,15,.72))}
.news-card__badge{position:absolute;left:12px;top:12px;z-index:2}
.news-card__body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-card__body h3{font-size:18px;line-height:1.5;color:var(--text-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__body p{font-size:14px;color:var(--text-mid);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-low)}
.news-card__foot .num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.news-card__foot i{color:var(--brand-cyan)}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--glass);border:1px solid var(--glass-brd);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .24s ease,background .24s ease;
}
.faq-item[open]{border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.05)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:17px;color:var(--text-hi);font-weight:500;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{
  flex:0 0 22px;width:22px;height:22px;position:relative;
  transition:transform .24s ease;
}
.faq-item summary .plus::before,.faq-item summary .plus::after{
  content:"";position:absolute;background:var(--brand-cyan);border-radius:2px;
}
.faq-item summary .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item__body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-mid)}

/* ============ CTA band ============ */
.cta-band{padding:0 0 88px}
.cta-card{
  position:relative;display:grid;grid-template-columns:1.15fr 1fr;gap:40px;
  padding:44px 46px;border-radius:var(--radius-lg);
  background:linear-gradient(150deg,rgba(16,26,46,.94),rgba(10,16,32,.9));
  border:1px solid var(--glass-brd);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-cyan),transparent);
}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:14px}
.cta-card p{font-size:15px;color:var(--text-mid);max-width:480px}
.cta-list{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.cta-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:#C9D8ED}
.cta-list i{color:var(--ok);margin-top:5px}
.cta-actions{display:flex;flex-direction:column;justify-content:center;gap:14px}
.cta-actions .btn{justify-content:center;width:100%}
.cta-actions .note{font-size:13px;color:var(--text-low);text-align:center}

/* ============ Footer ============ */
.footer{
  margin-top:auto;
  padding:64px 0 24px;
  background:var(--bg-deep);
  border-top:1px solid rgba(46,211,232,.18);
}
.footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px}
.footer__brand p{margin:16px 0 18px;font-size:14px;color:var(--text-mid);line-height:1.8;max-width:340px}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px}
.footer__tags span{
  font-size:12.5px;padding:4px 12px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid var(--glass-brd);color:var(--text-mid);
}
.footer h3{font-size:15px;color:var(--text-hi);margin-bottom:16px;letter-spacing:.02em}
.footer ul{display:flex;flex-direction:column;gap:10px}
.footer ul li{font-size:14px;color:var(--text-mid)}
.footer ul a{color:var(--text-mid)}
.footer ul a:hover{color:var(--brand-cyan)}
.footer__bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(120,200,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-low);
}

/* ============ Responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .article-panel{background:rgba(16,26,46,.55);padding:32px 32px 28px}
}
@media (max-width:1199px){
  :root{--sidebar-w:76px}
  .sidebar{padding:18px 10px;align-items:center}
  .nav-label,.nav-title,.logo__text,.sidebar__foot p,.sidebar__foot .btn span{display:none}
  .sidebar__foot .btn{padding:10px 0;width:44px;justify-content:center}
  .nav-item{justify-content:center;padding:0;width:48px}
  .logo{justify-content:center;padding:6px 0}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .topbar{display:flex}
  .sidebar{
    width:280px;padding:20px 14px;align-items:stretch;
    transform:translateX(-100%);transition:transform .24s ease-out;
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar .nav-label,.sidebar .nav-title,.sidebar .logo__text,.sidebar__foot p,.sidebar__foot .btn span{display:block}
  .sidebar .nav-item{justify-content:flex-start;padding:0 12px;width:auto}
  .sidebar .logo{justify-content:flex-start;padding:6px 8px}
  .sidebar__foot .btn{width:100%;padding:12px 24px}
  .sidebar-mask{display:block;position:fixed;inset:0;background:rgba(5,8,15,.6);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:55}
  .sidebar-mask.is-open{opacity:1;pointer-events:auto}
  .main-area{margin-left:0}
  .section{padding:64px 0}
  .cta-band{padding-bottom:64px}
}
@media (max-width:900px){
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{grid-template-columns:1fr;padding:32px 26px;gap:26px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .article-hero{padding:32px 0 30px}
  .article-hero h1{margin:18px 0 16px}
  .article-panel{padding:24px 20px 22px;border-radius:var(--radius-card)}
  .article-body{font-size:16px}
  .news-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding:48px 0}
  .cta-band{padding-bottom:48px}
  .status-bar{border-radius:var(--radius-card);margin-top:18px}
  .status-bar__link{margin-left:0;width:100%}
  .footer{padding:48px 0 20px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-item__body{padding:0 18px 18px}
}
@media (max-width:520px){
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .article-hero h1{font-size:27px}
  .breadcrumb .crumb-now{max-width:100%;white-space:normal}
  .footer__bottom{flex-direction:column}
  .btn{width:100%;justify-content:center}
  .topbar{gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --bg-abyss:#05080F;
  --bg-deep:#0A1020;
  --bg-elev:#101A2E;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --glass-border:rgba(120,200,255,.14);
  --brand-cyan:#2ED3E8;
  --brand-indigo:#4A5CFF;
  --accent-amber:#FFB03A;
  --accent-magenta:#FF4E88;
  --text-hi:#EAF2FF;
  --text-mid:#9FB2CE;
  --text-low:#6B7C99;
  --ok:#35D6A0;
  --warn:#FFC24A;
  --err:#FF6B6B;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-card:0 8px 30px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(46,211,232,.28);
  --sidebar-w:232px;
  --sidebar-w-sm:76px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-abyss);
  color:var(--text-mid);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-cyan);text-decoration:none;transition:color .22s ease,border-color .22s ease,background .22s ease}
a:hover{color:#7DEBFA}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:8px;
}
::selection{background:rgba(46,211,232,.28);color:#fff}

/* ---------- 布局骨架 ---------- */
.app{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  position:relative;
}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 32px;
}
.main{flex:1 1 auto;min-width:0}

/* ---------- 左侧 App Shell ---------- */
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--sidebar-w);
  z-index:60;
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:0 14px 20px;
  background:linear-gradient(180deg,rgba(16,26,46,.94),rgba(6,10,20,.96));
  border-right:1px solid var(--glass-border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow-y:auto;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(120,200,255,.18);border-radius:6px}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  padding:16px 8px;
  min-height:72px;
  color:var(--text-hi);
}
.logo:hover{color:var(--text-hi)}
.logo__mark{
  width:36px;height:36px;flex:0 0 36px;
  border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:0 8px 22px rgba(46,211,232,.3);
}
.logo__mark svg{width:20px;height:20px;fill:none;stroke:#04121A;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo__text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.logo__text b{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--text-hi)}
.logo__text i{font-style:normal;font-size:11px;color:var(--text-low);letter-spacing:.14em}
.nav-group{display:flex;flex-direction:column;gap:6px;padding-top:6px}
.nav-title{
  font-size:11px;
  letter-spacing:.22em;
  color:var(--text-low);
  padding:8px 12px 4px;
  text-transform:uppercase;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 12px;
  border-radius:12px;
  color:var(--text-mid);
  font-size:15px;
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.nav-item i{width:18px;font-size:15px;text-align:center;color:inherit}
.nav-item:hover{
  color:var(--text-hi);
  background:var(--glass);
  border-color:var(--glass-border);
}
.nav-item.is-active{
  color:var(--text-hi);
  background:linear-gradient(90deg,rgba(46,211,232,.16),rgba(46,211,232,.03));
  border-color:rgba(46,211,232,.32);
  box-shadow:0 0 22px rgba(46,211,232,.14) inset;
}
.nav-item.is-active::before{
  content:"";
  position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--brand-cyan),var(--brand-indigo));
}
.sidebar__foot{
  margin-top:auto;
  padding:16px 8px 4px;
  border-top:1px solid rgba(120,200,255,.1);
  display:flex;
  flex-direction:column;
  gap:10px;
}
.sidebar__foot p{font-size:13px;line-height:1.7;color:var(--text-low)}
.btn--mini{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;
  padding:10px 14px;
  border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04121A;
  box-shadow:0 8px 20px rgba(46,211,232,.24);
}
.btn--mini:hover{color:#04121A;transform:translateY(-1px);box-shadow:0 12px 26px rgba(46,211,232,.4)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  z-index:70;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:rgba(8,13,24,.86);
  border-bottom:1px solid var(--glass-border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.topbar__toggle{
  width:40px;height:40px;
  border-radius:12px;
  display:grid;place-items:center;
  color:var(--text-hi);
  background:var(--glass);
  border:1px solid var(--glass-border);
  font-size:16px;
}
.topbar .logo{min-height:auto;padding:0;gap:8px}
.topbar .logo__mark{width:30px;height:30px;flex:0 0 30px;border-radius:10px}
.topbar .logo__mark svg{width:16px;height:16px}
.topbar .logo__text b{font-size:14px}
.topbar .logo__text i{font-size:10px;letter-spacing:.1em}
.topbar .btn--mini{width:auto;padding:8px 16px;margin-left:auto;font-size:13px}
.scrim{
  position:fixed;inset:0;z-index:55;
  background:rgba(5,8,15,.6);
  opacity:0;pointer-events:none;
  transition:opacity .24s ease;
}
.scrim.is-open{opacity:1;pointer-events:auto}

/* ---------- 状态条 ---------- */
.statusbar{
  position:sticky;top:0;z-index:40;
  background:rgba(10,16,32,.88);
  border-bottom:1px solid rgba(46,211,232,.16);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.statusbar__in{
  display:flex;align-items:center;gap:14px;
  min-height:52px;
  font-size:13px;
  color:var(--text-mid);
  flex-wrap:wrap;
}
.statusbar__dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--ok);
  box-shadow:0 0 0 4px rgba(53,214,160,.16);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(53,214,160,.16)}
  50%{box-shadow:0 0 0 8px rgba(53,214,160,.05)}
}
.statusbar__text{color:var(--text-mid);font-family:var(--font-num);letter-spacing:.02em}
.statusbar__link{margin-left:auto;font-size:13px;border-bottom:1px solid rgba(46,211,232,.36)}
.statusbar__link:hover{border-color:var(--brand-cyan)}

/* ---------- 通用组件 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--brand-cyan);
  background:rgba(46,211,232,.08);
  border:1px solid rgba(46,211,232,.3);
}
.badge--amber{color:var(--accent-amber);background:rgba(255,176,58,.1);border-color:rgba(255,176,58,.32)}
.badge--magenta{color:var(--accent-magenta);background:rgba(255,78,136,.1);border-color:rgba(255,78,136,.32)}
.badge--plain{color:var(--text-mid);background:var(--glass);border-color:var(--glass-border)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;
  border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease,color .24s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04121A;
  box-shadow:var(--shadow-glow);
}
.btn--primary:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 14px 38px rgba(46,211,232,.45)}
.btn--primary:active{transform:translateY(0);filter:brightness(.94)}
.btn--ghost{
  color:var(--text-hi);
  background:rgba(255,255,255,.03);
  border-color:rgba(120,200,255,.3);
}
.btn--ghost:hover{color:#fff;border-color:rgba(46,211,232,.62);background:rgba(46,211,232,.08)}
.btn--amber{color:var(--accent-amber);border-color:rgba(255,176,58,.42);background:rgba(255,176,58,.06)}
.btn--amber:hover{color:#FFD08A;border-color:var(--accent-amber);background:rgba(255,176,58,.12)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.card{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--deep{background:var(--bg-deep)}
.section__head{max-width:760px;margin-bottom:40px}
.section__eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--brand-cyan);margin-bottom:14px;
}
.section__eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-cyan),transparent)}
h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;letter-spacing:-.01em;color:var(--text-hi);font-weight:700}
h2{font-size:clamp(24px,3vw,36px);line-height:1.3;color:var(--text-hi);font-weight:700}
h3{font-size:20px;line-height:1.4;color:var(--text-hi);font-weight:600}
.section__desc{margin-top:16px;color:var(--text-mid);max-width:42em}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  background-color:var(--bg-deep);
  background-image:linear-gradient(115deg,rgba(5,8,15,.94) 12%,rgba(5,8,15,.78) 52%,rgba(5,8,15,.66) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 18% 22%,rgba(46,211,232,.16),transparent 42%),radial-gradient(circle at 82% 78%,rgba(74,92,255,.16),transparent 46%);
  opacity:.9;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(to bottom,rgba(5,8,15,0),var(--bg-abyss));
  pointer-events:none;
}
.hero__in{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero__tag{margin-bottom:20px}
.hero h1{margin-bottom:20px}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{font-size:17px;line-height:1.9;color:var(--text-mid);max-width:36em}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero__meta{display:flex;flex-wrap:wrap;gap:24px;margin-top:34px;padding-top:22px;border-top:1px solid rgba(120,200,255,.12)}
.hero__meta div{min-width:110px}
.hero__meta b{display:block;font-family:var(--font-num);font-size:22px;color:var(--text-hi);font-variant-numeric:tabular-nums}
.hero__meta span{font-size:13px;color:var(--text-low)}
.hero__card{
  padding:26px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(255,255,255,.08),rgba(255,255,255,.03));
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.hero__card h2{font-size:18px;margin-bottom:18px}
.hero__card ul{display:flex;flex-direction:column;gap:14px}
.hero__card li{display:flex;gap:12px;font-size:14px;line-height:1.7;color:var(--text-mid)}
.hero__card li i{color:var(--brand-cyan);margin-top:6px;font-size:13px}
.hero__card li b{color:var(--text-hi);font-weight:600}
.hero__card__foot{
  margin-top:22px;padding-top:18px;border-top:1px solid rgba(120,200,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-low);
}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:-38px;
  position:relative;
  z-index:5;
}
.metric{
  padding:22px 24px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.metric b{display:block;font-family:var(--font-num);font-size:26px;color:var(--text-hi);font-variant-numeric:tabular-nums}
.metric span{display:block;font-size:13px;color:var(--text-low);margin-top:6px;line-height:1.6}

/* ---------- 流程时间轴 ---------- */
.steps{position:relative;display:flex;flex-direction:column;gap:20px;margin-top:8px}
.steps::before{
  content:"";position:absolute;left:29px;top:34px;bottom:34px;width:1px;
  background:linear-gradient(180deg,rgba(46,211,232,.5),rgba(46,211,232,.08));
}
.step{
  position:relative;
  display:grid;
  grid-template-columns:60px minmax(0,1fr);
  gap:22px;
  align-items:flex-start;
}
.step__no{
  position:relative;z-index:2;
  width:58px;height:58px;
  border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--font-num);
  font-size:17px;
  color:var(--brand-cyan);
  background:rgba(10,16,32,.96);
  border:1px solid rgba(46,211,232,.45);
  box-shadow:0 0 0 6px rgba(5,8,15,.9),0 8px 24px rgba(0,0,0,.4);
  font-variant-numeric:tabular-nums;
}
.step__body{
  padding:22px 24px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.step:hover .step__body{
  transform:translateY(-2px);
  border-color:rgba(46,211,232,.4);
  box-shadow:0 14px 36px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.1);
}
.step__top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.step__top h3{font-size:19px}
.step__body p{font-size:15px;line-height:1.85;color:var(--text-mid)}
.step__foot{
  display:flex;flex-wrap:wrap;gap:10px 18px;
  margin-top:16px;padding-top:14px;
  border-top:1px solid rgba(120,200,255,.1);
  font-size:13px;color:var(--text-low);
}
.step__foot span{display:inline-flex;align-items:center;gap:7px}
.step__foot i{color:var(--brand-cyan);font-size:12px}

/* ---------- 图文区块 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:center}
.figure{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card);
  background:linear-gradient(140deg,rgba(46,211,232,.12),rgba(74,92,255,.12));
  aspect-ratio:16/10;
}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.figure:hover img{transform:scale(1.04)}
.figure__cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:40px 22px 18px;
  background:linear-gradient(to top,rgba(5,8,15,.92),rgba(5,8,15,0));
  font-size:14px;color:var(--text-hi);
}
.figure--fallback{display:grid;place-items:center}
.figure--fallback span{
  font-size:34px;font-weight:700;color:var(--brand-cyan);opacity:.7;
}

/* ---------- 卡点键值列表 ---------- */
.kv{display:flex;flex-direction:column;gap:2px;margin-top:24px}
.kv__row{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.4fr);
  gap:20px;
  padding:18px 20px;
  border-radius:14px;
  background:rgba(255,255,255,.02);
  border:1px solid rgba(120,200,255,.08);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.kv__row:hover{background:rgba(46,211,232,.06);border-color:rgba(46,211,232,.28);transform:translateX(2px)}
.kv__k{display:flex;align-items:center;gap:10px;color:var(--text-hi);font-weight:600;font-size:15px}
.kv__k i{color:var(--accent-amber);font-size:13px}
.kv__v{font-size:14px;color:var(--text-mid);line-height:1.8}

/* ---------- 清单 ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:26px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--glass-border);
  font-size:14px;line-height:1.75;color:var(--text-mid);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.checklist li:hover{border-color:rgba(46,211,232,.34);background:rgba(46,211,232,.06);transform:translateY(-2px)}
.checklist i{color:var(--ok);margin-top:6px;font-size:13px}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq__item{
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  overflow:hidden;
  transition:border-color .24s ease,background .24s ease;
}
.faq__item.is-open{border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.05)}
.faq__q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;
  text-align:left;
  font-size:17px;font-weight:500;color:var(--text-hi);
}
.faq__icon{
  flex:0 0 26px;width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid rgba(120,200,255,.26);
  color:var(--brand-cyan);
  font-size:13px;
  transition:transform .24s ease,border-color .24s ease;
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);border-color:rgba(46,211,232,.6)}
.faq__a{
  max-height:0;overflow:hidden;
  transition:max-height .24s ease;
}
.faq__a p{
  padding:0 22px 22px;font-size:15px;line-height:1.9;color:var(--text-mid);
}

/* ---------- CTA ---------- */
.cta{
  position:relative;
  border-radius:var(--radius-lg);
  padding:44px;
  background:linear-gradient(150deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  overflow:hidden;
}
.cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.8),transparent);
}
.cta__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:44px;align-items:start;position:relative;z-index:2}
.cta h2{margin-bottom:14px}
.cta__list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.cta__list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-mid)}
.cta__list i{color:var(--brand-cyan);margin-top:6px;font-size:13px}
.form{display:flex;flex-direction:column;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13px;color:var(--text-low);letter-spacing:.04em}
.field input,.field textarea{
  width:100%;
  padding:13px 16px;
  border-radius:12px;
  background:rgba(5,8,15,.55);
  border:1px solid rgba(120,200,255,.18);
  color:var(--text-hi);
  font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(46,211,232,.7);
  box-shadow:0 0 0 4px rgba(46,211,232,.14);
  background:rgba(5,8,15,.75);
}
.field.is-error input,.field.is-error textarea{border-color:rgba(255,107,107,.7);box-shadow:0 0 0 4px rgba(255,107,107,.12)}
.field__err{display:none;align-items:center;gap:6px;font-size:13px;color:var(--err)}
.field.is-error .field__err{display:flex}
.form__note{font-size:13px;color:var(--text-low);line-height:1.7}
.form__success{
  display:none;
  align-items:flex-start;gap:14px;
  padding:22px;
  border-radius:var(--radius-card);
  background:rgba(53,214,160,.08);
  border:1px solid rgba(53,214,160,.34);
}
.form__success.is-visible{display:flex}
.form__success i{color:var(--ok);font-size:20px;margin-top:4px}
.form__success b{display:block;color:var(--text-hi);font-size:16px;margin-bottom:6px}
.form__success p{font-size:14px;color:var(--text-mid)}

/* ---------- 相关入口 ---------- */
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:34px}
.rel{
  display:flex;flex-direction:column;gap:12px;
  padding:24px;
  border-radius:var(--radius-card);
  background:var(--glass);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .24s ease,border-color .24s ease,background .24s ease;
  color:var(--text-mid);
}
.rel:hover{transform:translateY(-3px);border-color:rgba(46,211,232,.42);background:rgba(46,211,232,.06);color:var(--text-mid)}
.rel__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.rel__top i{color:var(--brand-cyan);font-size:16px}
.rel b{color:var(--text-hi);font-size:17px;font-weight:600}
.rel p{font-size:14px;line-height:1.75;color:var(--text-low)}
.rel .rel__go{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-cyan);margin-top:4px}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:20px 0 0;
  font-size:14px;color:var(--text-low);
}
.crumb a{color:var(--text-mid)}
.crumb a:hover{color:var(--brand-cyan)}
.crumb i{font-size:10px;opacity:.6}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--bg-deep);
  border-top:1px solid transparent;
  position:relative;
  padding:64px 0 28px;
}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.7),transparent);
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand .logo{padding:0 0 16px}
.footer__brand p{font-size:14px;line-height:1.85;color:var(--text-low);max-width:32em}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer__tags span{
  font-size:12px;padding:4px 11px;border-radius:var(--radius-pill);
  color:var(--text-mid);background:var(--glass);border:1px solid var(--glass-border);
}
.footer h3{font-size:15px;color:var(--text-hi);margin-bottom:16px;font-weight:600}
.footer ul{display:flex;flex-direction:column;gap:11px}
.footer ul a,.footer ul li{font-size:14px;color:var(--text-low);line-height:1.6}
.footer ul a:hover{color:var(--brand-cyan)}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(120,200,255,.1);
  font-size:13px;color:var(--text-low);
}

/* ---------- 状态样式 ---------- */
.skeleton{
  position:relative;overflow:hidden;border-radius:12px;
  background:rgba(120,200,255,.07);
}
.skeleton::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.18),transparent);
  animation:shimmer 1.5s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.empty{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:44px 22px;text-align:center;
  border-radius:var(--radius-card);
  background:var(--glass);border:1px dashed rgba(120,200,255,.24);
  color:var(--text-low);
}
.empty i{font-size:26px;color:var(--brand-cyan);opacity:.8}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:var(--sidebar-w-sm)}
  .sidebar{padding:0 10px 16px;align-items:center}
  .logo{padding:18px 0;justify-content:center}
  .logo__text,.nav-title,.nav-label,.sidebar__foot p,.sidebar__foot .btn--mini span{display:none}
  .nav-item{justify-content:center;padding:0;width:48px;margin:0 auto}
  .nav-item i{font-size:17px}
  .sidebar__foot{width:100%;align-items:center;padding-top:14px}
  .sidebar__foot .btn--mini{width:44px;height:44px;padding:0;border-radius:14px}
  .hero__in{grid-template-columns:1fr;gap:36px}
  .hero__card{max-width:560px}
  .cta__grid{grid-template-columns:1fr;gap:32px}
  .footer__grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .app{margin-left:0;padding-top:56px}
  .topbar{display:flex}
  .sidebar{
    width:280px;
    padding:0 14px 20px;
    align-items:stretch;
    transform:translateX(-100%);
    transition:transform .24s ease-out;
    z-index:80;
  }
  .sidebar.is-open{transform:translateX(0)}
  .sidebar .logo{justify-content:flex-start;padding:18px 8px}
  .sidebar .logo__text,
  .sidebar .nav-title,
  .sidebar .nav-label,
  .sidebar .sidebar__foot p{display:flex}
  .sidebar .nav-title{display:block}
  .sidebar .nav-item{justify-content:flex-start;padding:0 12px;width:100%}
  .sidebar .nav-item i{font-size:15px}
  .sidebar .sidebar__foot{align-items:stretch}
  .sidebar .sidebar__foot .btn--mini{width:100%;height:auto;padding:10px 14px;border-radius:var(--radius-pill)}
  .sidebar .sidebar__foot .btn--mini span{display:inline}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:24px}
  .split{grid-template-columns:1fr;gap:28px}
  .related{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .cta{padding:32px 24px}
}
@media (max-width:767px){
  body{font-size:15px}
  .hero{padding:48px 0 64px}
  .hero__meta{gap:18px}
  .hero__meta b{font-size:19px}
  .hero__actions .btn{width:100%}
  .step{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .step__no{width:44px;height:44px;font-size:15px}
  .steps::before{left:21px}
  .kv__row{grid-template-columns:1fr;gap:8px}
  .checklist{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section--tight{padding:44px 0}
  .footer{padding:48px 0 24px}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .footer__bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .metrics{grid-template-columns:1fr}
  .faq__q{font-size:15px;padding:17px 16px}
  .faq__a p{padding:0 16px 18px;font-size:14px}
  .cta{padding:26px 18px}
  .badge{font-size:11px}
}

/* roulang page: category2 */
:root{
  --bg-abyss:#05080F;
  --bg-deep:#0A1020;
  --bg-elev:#101A2E;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --glass-line:rgba(120,200,255,.14);
  --brand-cyan:#2ED3E8;
  --brand-indigo:#4A5CFF;
  --accent-amber:#FFB03A;
  --accent-magenta:#FF4E88;
  --text-hi:#EAF2FF;
  --text-mid:#9FB2CE;
  --text-low:#6B7C99;
  --ok:#35D6A0;
  --warn:#FFC24A;
  --err:#FF6B6B;
  --radius:16px;
  --radius-lg:20px;
  --shadow-glass:0 8px 30px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(46,211,232,.28);
  --sidebar:232px;
  --maxw:1280px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-abyss);
  color:var(--text-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(720px 420px at 78% -6%,rgba(46,211,232,.09),transparent 60%),
    radial-gradient(560px 360px at 12% 22%,rgba(74,92,255,.08),transparent 62%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(46,211,232,.28)}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}

/* ---------- 左侧 App Shell ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);z-index:70;
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(16,26,46,.94) 0%,rgba(5,8,15,.97) 100%);
  border-right:1px solid var(--glass-line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset -1px 0 0 rgba(46,211,232,.06);
  transition:transform .24s ease-out,width .24s ease-out;
}
.sidebar__head{padding:18px 18px 16px;border-bottom:1px solid rgba(120,200,255,.08)}
.logo{display:flex;align-items:center;gap:10px;min-width:0}
.logo__mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:var(--shadow-glow);
}
.logo__mark svg{width:19px;height:19px;fill:none;stroke:#04121A;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.logo__text{display:flex;flex-direction:column;line-height:1.22;min-width:0}
.logo__text b{font-size:15px;letter-spacing:.02em;white-space:nowrap}
.logo__text i{font-style:normal;font-size:11px;color:var(--text-low);letter-spacing:.18em;white-space:nowrap}

.nav-group{padding:14px 0 4px}
.nav-title{
  padding:0 22px 8px;font-size:12px;letter-spacing:.2em;color:var(--text-low);
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;margin:2px 10px;border-radius:12px;
  color:var(--text-mid);font-size:15px;transition:background .2s,color .2s,box-shadow .2s;
}
.nav-item i{width:18px;text-align:center;font-size:15px;color:inherit}
.nav-item:hover{color:var(--text-hi);background:rgba(255,255,255,.05)}
.nav-item.is-active{
  color:var(--text-hi);
  background:rgba(46,211,232,.08);
  box-shadow:inset 0 0 0 1px rgba(46,211,232,.18);
}
.nav-item.is-active::before{
  content:"";position:absolute;left:-10px;top:11px;bottom:11px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand-cyan);box-shadow:0 0 12px rgba(46,211,232,.85);
}
.nav-label{white-space:nowrap}

.sidebar__foot{margin-top:auto;padding:16px 14px 20px;border-top:1px solid rgba(120,200,255,.08)}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:40px;
  border-radius:999px;border:1px solid rgba(46,211,232,.4);
  background:linear-gradient(135deg,rgba(46,211,232,.16),rgba(74,92,255,.16));
  color:var(--text-hi);font-size:13px;font-weight:600;cursor:pointer;
  transition:box-shadow .22s,transform .22s;
}
.sidebar__cta:hover{box-shadow:0 8px 24px rgba(46,211,232,.3);transform:translateY(-1px)}
.sidebar__meta{margin-top:12px;font-size:12px;line-height:1.7;color:var(--text-low)}
.sidebar__meta span{display:block}

.scrim{
  position:fixed;inset:0;background:rgba(5,8,15,.6);z-index:65;
  opacity:0;pointer-events:none;transition:opacity .24s ease-out;
}
body.nav-open .scrim{opacity:1;pointer-events:auto}

/* ---------- 顶部栏（移动） ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:60;height:56px;
  align-items:center;gap:12px;padding:0 16px;
  background:rgba(10,16,32,.9);border-bottom:1px solid var(--glass-line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.topbar__logo{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:600}
.topbar__logo .logo__mark{width:30px;height:30px;border-radius:10px}
.topbar__logo .logo__mark svg{width:16px;height:16px}
.hamburger{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;cursor:pointer;
  border:1px solid var(--glass-line);background:var(--glass);color:var(--text-hi);
  display:grid;place-items:center;font-size:16px;
}
.hamburger:hover{background:var(--glass-strong)}

/* ---------- 主区 ---------- */
.layout{margin-left:var(--sidebar);position:relative;z-index:1;transition:margin-left .24s ease-out}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section__head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.2em;
  color:var(--brand-cyan);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand-cyan),transparent)}
h2.h2{font-size:clamp(24px,3vw,36px);line-height:1.3;letter-spacing:-.01em}
.section__desc{margin-top:14px;color:var(--text-mid);font-size:15px}

/* ---------- 面包屑 ---------- */
.crumbs{padding:26px 0 0;font-size:14px;color:var(--text-low)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--text-low);opacity:.6}
.crumbs a{color:var(--text-mid);transition:color .2s}
.crumbs a:hover{color:var(--brand-cyan)}
.crumbs [aria-current]{color:var(--text-hi)}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:22px;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass);
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.82) 46%,rgba(5,8,15,.6) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:150px;
  background:linear-gradient(180deg,transparent,var(--bg-abyss));
}
.hero__inner{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);
  gap:44px;align-items:center;padding:70px 48px;
}
.badge{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;letter-spacing:.06em;color:var(--brand-cyan);
  background:rgba(46,211,232,.09);border:1px solid rgba(46,211,232,.3);
}
.badge--amber{color:var(--accent-amber);background:rgba(255,176,58,.1);border-color:rgba(255,176,58,.32)}
.badge--magenta{color:var(--accent-magenta);background:rgba(255,78,136,.1);border-color:rgba(255,78,136,.32)}
.badge--plain{color:var(--text-mid);background:var(--glass);border-color:var(--glass-line)}

h1.h1{
  margin-top:20px;
  font-size:clamp(30px,4.2vw,52px);line-height:1.15;letter-spacing:-.01em;font-weight:800;
}
h1.h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{margin-top:20px;max-width:34em;color:var(--text-mid);font-size:16.5px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s,box-shadow .22s,background .22s,border-color .22s,filter .22s;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04121A;box-shadow:var(--shadow-glow);
}
.btn--primary:hover{box-shadow:0 14px 36px rgba(46,211,232,.45);transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0);filter:brightness(.94)}
.btn--ghost{
  background:rgba(255,255,255,.03);border-color:var(--glass-line);color:var(--text-hi);
}
.btn--ghost:hover{border-color:rgba(46,211,232,.5);background:rgba(46,211,232,.08);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

.hero__panel{
  border-radius:var(--radius);padding:22px;
  background:var(--glass);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero__panel h3{font-size:15px;color:var(--text-mid);font-weight:500;letter-spacing:.04em}
.hero__facts{margin-top:16px;display:grid;gap:12px}
.hero__fact{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:12px;border-bottom:1px solid rgba(120,200,255,.1)}
.hero__fact:last-child{border-bottom:0;padding-bottom:0}
.hero__fact span{color:var(--text-mid);font-size:13.5px}
.hero__fact b{font-size:19px;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.hero__fact b.cyan{color:var(--brand-cyan)}
.hero__fact b.amber{color:var(--accent-amber)}
.hero__note{margin-top:14px;font-size:12.5px;color:var(--text-low);line-height:1.7}

/* ---------- 通用卡片 ---------- */
.card{
  position:relative;border-radius:var(--radius);padding:24px;
  background:var(--glass);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  transition:transform .22s,border-color .22s,box-shadow .22s;
}
.card:hover{transform:translateY(-2px);border-color:rgba(46,211,232,.35)}
.card h3{font-size:19px;line-height:1.45}
.card p{color:var(--text-mid);font-size:14.5px;margin-top:10px}

.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}

/* ---------- 键值对信息卡 ---------- */
.spec{padding:26px}
.spec__top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid rgba(120,200,255,.12)}
.spec__name{font-size:20px;font-weight:700}
.spec__name small{display:block;font-size:12.5px;font-weight:400;color:var(--text-low);letter-spacing:.06em;margin-top:4px}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(53,214,160,.8);margin-right:7px;vertical-align:middle}
.dot--amber{background:var(--accent-amber);box-shadow:0 0 10px rgba(255,176,58,.8)}
.dot--cyan{background:var(--brand-cyan);box-shadow:0 0 10px rgba(46,211,232,.8)}
.spec__list{margin-top:6px}
.spec__row{
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:13px 0;border-bottom:1px solid rgba(120,200,255,.08);font-size:14.5px;
}
.spec__row:last-child{border-bottom:0}
.spec__row dt{color:var(--text-low);flex:0 0 auto}
.spec__row dd{margin:0;text-align:right;color:var(--text-hi);font-variant-numeric:tabular-nums}
.spec__foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(120,200,255,.12);display:flex;align-items:center;justify-content:space-between;gap:12px}
.spec__foot span{font-size:13px;color:var(--text-low)}
.link-cyan{color:var(--brand-cyan);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-cyan i{transition:transform .2s}
.link-cyan:hover i{transform:translateX(3px)}

/* ---------- 左右交替图文 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:52px;align-items:center}
.split + .split{margin-top:64px}
.split--reverse .split__media{order:2}
.split--reverse .split__body{order:1}
.figure{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--glass-line);background:var(--bg-elev);
  aspect-ratio:16/11;box-shadow:var(--shadow-glass);
}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.split:hover .figure img{transform:scale(1.03)}
.figure::after{
  content:"";position:absolute;inset:auto 0 0 0;height:55%;
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.72));
}
.figure__fb{
  display:none;position:absolute;inset:0;place-items:center;font-size:34px;font-weight:800;
  color:rgba(46,211,232,.5);letter-spacing:.1em;background:rgba(16,26,46,.9);
}
.figure.is-error img{display:none}
.figure.is-error .figure__fb{display:grid}
.split__figtag{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-hi);
  background:rgba(10,16,32,.72);border:1px solid var(--glass-line);
  padding:6px 12px;border-radius:999px;backdrop-filter:blur(8px);
}
.split__body h3{font-size:clamp(20px,2.2vw,24px);line-height:1.4}
.split__body p{margin-top:14px;color:var(--text-mid);font-size:15.5px}
.ticks{margin-top:20px;display:grid;gap:11px}
.ticks li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-mid)}
.ticks i{color:var(--brand-cyan);font-size:14px;margin-top:6px;flex:0 0 auto}
.ticks b{color:var(--text-hi);font-weight:600}

/* ---------- 决策要点 ---------- */
.steps{display:grid;gap:0;counter-reset:step}
.steps li{
  counter-increment:step;display:grid;grid-template-columns:56px minmax(0,1fr);
  gap:22px;padding:26px 0;border-bottom:1px solid rgba(120,200,255,.1);
}
.steps li:last-child{border-bottom:0}
.steps li::before{
  content:"0" counter(step);
  width:56px;height:56px;border-radius:50%;display:grid;place-items:center;
  font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--brand-cyan);border:1px solid rgba(46,211,232,.4);
  background:rgba(46,211,232,.06);box-shadow:inset 0 0 18px rgba(46,211,232,.12);
}
.steps h3{font-size:19px}
.steps p{margin-top:8px;color:var(--text-mid);font-size:14.5px;max-width:56em}

/* ---------- 相关入口 ---------- */
.entries{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.entry{
  display:flex;align-items:center;gap:16px;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .22s,border-color .22s,background .22s;
}
.entry:hover{transform:translateY(-3px);border-color:rgba(46,211,232,.4);background:rgba(46,211,232,.06)}
.entry__ic{
  width:42px;height:42px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,211,232,.2),rgba(74,92,255,.2));
  border:1px solid rgba(46,211,232,.28);color:var(--brand-cyan);font-size:16px;
}
.entry__tx{min-width:0;flex:1}
.entry__tx b{display:block;font-size:15.5px}
.entry__tx span{display:block;font-size:13px;color:var(--text-low);margin-top:3px}
.entry > i.fa-arrow-right{color:var(--text-low);font-size:13px;transition:transform .2s,color .2s}
.entry:hover > i.fa-arrow-right{transform:translateX(4px);color:var(--brand-cyan)}

/* ---------- CTA ---------- */
.cta{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);padding:52px 48px;
  background:
    radial-gradient(600px 300px at 12% 0%,rgba(46,211,232,.14),transparent 62%),
    linear-gradient(160deg,rgba(16,26,46,.96),rgba(10,16,32,.98));
  border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass);
}
.cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand-cyan),rgba(46,211,232,0) 72%);
}
.cta__grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:44px;align-items:center}
.cta h2{font-size:clamp(22px,2.6vw,32px);line-height:1.32}
.cta p{margin-top:14px;color:var(--text-mid);font-size:15px}
.cta__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta__panel{
  border-radius:var(--radius);padding:24px;background:rgba(255,255,255,.05);
  border:1px solid var(--glass-line);backdrop-filter:blur(14px);
}
.cta__panel h4{font-size:15px;color:var(--text-mid);font-weight:500;letter-spacing:.04em}
.cta__rows{margin-top:14px;display:grid;gap:12px}
.cta__row{display:flex;justify-content:space-between;gap:16px;font-size:14px;padding-bottom:12px;border-bottom:1px solid rgba(120,200,255,.1)}
.cta__row:last-child{border-bottom:0;padding-bottom:0}
.cta__row span{color:var(--text-low)}
.cta__row b{font-variant-numeric:tabular-nums}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{
  border-radius:var(--radius);background:var(--glass);border:1px solid var(--glass-line);
  box-shadow:var(--shadow-glass),inset 0 1px 0 rgba(255,255,255,.08);
  overflow:hidden;transition:border-color .22s;
}
.faq-item.is-open{border-color:rgba(46,211,232,.38)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:500;color:var(--text-hi);
}
.faq-q:hover{color:var(--brand-cyan)}
.faq-mark{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;display:grid;place-items:center;
  border:1px solid rgba(46,211,232,.36);color:var(--brand-cyan);font-size:13px;
  transition:transform .24s ease,background .24s;
}
.faq-item.is-open .faq-mark{transform:rotate(45deg);background:rgba(46,211,232,.12)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .24s ease}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a > div{overflow:hidden}
.faq-a p{padding:0 24px 22px;color:var(--text-mid);font-size:15px}

/* ---------- 页脚 ---------- */
.footer{
  position:relative;margin-top:24px;padding:72px 0 28px;
  background:linear-gradient(180deg,rgba(10,16,32,.6),rgba(5,8,15,1));
  border-top:1px solid rgba(120,200,255,.1);
}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand-cyan),rgba(46,211,232,0) 70%);
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer__brand p{margin-top:16px;color:var(--text-mid);font-size:14px;max-width:34em}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer__tags span{
  font-size:12.5px;color:var(--text-mid);padding:5px 11px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-line);
}
.footer h3{font-size:15px;margin-bottom:16px;color:var(--text-hi)}
.footer ul{display:grid;gap:10px}
.footer ul a,.footer ul li{font-size:14px;color:var(--text-mid)}
.footer ul a{transition:color .2s}
.footer ul a:hover{color:var(--brand-cyan)}
.footer__bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid rgba(120,200,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-low);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px) and (min-width:1024px){
  :root{--sidebar:76px}
  .logo__text,.nav-title,.nav-label,.sidebar__meta,.sidebar__cta span{display:none}
  .sidebar__head{padding:18px 0;display:flex;justify-content:center}
  .logo{justify-content:center}
  .nav-item{justify-content:center;padding:0;margin:2px 12px}
  .nav-item.is-active::before{left:-12px}
  .sidebar__cta{padding:0;font-size:15px}
  .nav-item::after{
    content:attr(data-tip);position:absolute;left:calc(100% + 14px);top:50%;
    transform:translateY(-50%);white-space:nowrap;font-size:13px;color:var(--text-hi);
    background:rgba(10,16,32,.97);border:1px solid var(--glass-line);
    padding:6px 12px;border-radius:9px;opacity:0;pointer-events:none;transition:opacity .18s;
    z-index:80;
  }
  .nav-item:hover::after{opacity:1}
  .hero__inner{grid-template-columns:1fr;gap:34px;padding:56px 40px}
  .cta__grid{grid-template-columns:1fr;gap:34px}
}

@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:280px;box-shadow:0 0 60px rgba(0,0,0,.6)}
  body.nav-open .sidebar{transform:translateX(0)}
  .layout{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 22px}
  .section{padding:64px 0}
  .hero{margin-top:18px}
  .hero__inner{grid-template-columns:1fr;gap:32px;padding:48px 28px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:28px}
  .split--reverse .split__media{order:1}
  .split--reverse .split__body{order:2}
  .split + .split{margin-top:52px}
  .entries{grid-template-columns:1fr}
  .cta{padding:40px 28px}
  .cta__grid{grid-template-columns:1fr;gap:32px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}

@media (max-width:767px){
  .grid-3{grid-template-columns:1fr}
  .steps li{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .steps li::before{width:44px;height:44px;font-size:15px}
  .footer__grid{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
}

@media (max-width:520px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .hero__inner{padding:38px 20px}
  .card{padding:20px}
  .spec{padding:20px}
  .cta{padding:32px 20px}
  .hero__actions .btn,.cta__actions .btn{width:100%}
  .hero__fact{flex-direction:column;align-items:flex-start;gap:4px}
  .spec__row{flex-direction:column;gap:2px}
  .spec__row dd{text-align:left}
}

/* roulang page: category3 */
:root{
  --bg-abyss:#05080F;
  --bg-deep:#0A1020;
  --bg-elev:#101A2E;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --glass-border:rgba(120,200,255,.14);
  --brand-cyan:#2ED3E8;
  --brand-indigo:#4A5CFF;
  --accent-amber:#FFB03A;
  --accent-magenta:#FF4E88;
  --text-hi:#EAF2FF;
  --text-mid:#9FB2CE;
  --text-low:#6B7C99;
  --ok:#35D6A0;
  --warn:#FFC24A;
  --err:#FF6B6B;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-card:0 8px 30px rgba(0,0,0,.35);
  --shadow-glow:0 10px 30px rgba(46,211,232,.28);
  --shadow-glow-hi:0 14px 36px rgba(46,211,232,.45);
  --sidebar-w:232px;
  --gutter:24px;
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num: "Inter",ui-monospace,"SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-abyss);
  color:var(--text-hi);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
::selection{background:rgba(46,211,232,.3);}
:focus-visible{outline:2px solid var(--brand-cyan);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--gutter);}

/* ---------- Shell ---------- */
.app{min-height:100vh;}
.sidebar{
  position:fixed;inset:0 auto 0 0;width:var(--sidebar-w);
  background:linear-gradient(180deg,rgba(16,26,46,.94),rgba(10,16,32,.96));
  backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  display:flex;flex-direction:column;
  padding:20px 14px;
  z-index:60;
  transition:transform .24s ease-out,width .2s ease;
}
.sidebar::after{
  content:"";position:absolute;top:0;right:-1px;width:1px;height:100%;
  background:linear-gradient(180deg,transparent,rgba(46,211,232,.35),transparent);
}
.logo{display:flex;align-items:center;gap:10px;padding:6px 8px 18px;}
.logo__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  box-shadow:0 8px 22px rgba(46,211,232,.3);
}
.logo__mark svg{width:20px;height:20px;fill:none;stroke:#04111b;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.logo__text{display:flex;flex-direction:column;line-height:1.25;}
.logo__text b{font-size:15px;color:var(--text-hi);letter-spacing:.02em;}
.logo__text i{font-style:normal;font-size:11px;color:var(--text-low);letter-spacing:.14em;}

.nav-group{display:flex;flex-direction:column;gap:4px;flex:1;}
.nav-title{
  font-size:11px;color:var(--text-low);letter-spacing:.2em;
  margin:4px 10px 8px;text-transform:uppercase;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  color:var(--text-mid);font-size:15px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;}
.nav-item:hover{background:var(--glass);color:var(--text-hi);transform:translateX(2px);}
.nav-item.is-active{background:var(--glass-strong);color:var(--text-hi);}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:var(--brand-cyan);box-shadow:0 0 14px rgba(46,211,232,.8);
}
.side-cta{
  margin-top:14px;display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04111b;font-weight:600;font-size:14px;
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.side-cta:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow-hi);}
.side-cta:active{transform:translateY(0);filter:brightness(.94);}
.side-meta{margin-top:14px;padding:0 10px;font-size:12px;line-height:1.7;color:var(--text-low);}
.side-meta a{color:var(--text-mid);}
.side-meta a:hover{color:var(--brand-cyan);}

.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}

/* ---------- Topbar (mobile) ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;
  height:56px;align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(10,16,32,.9);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--glass-border);
}
.topbar .logo{padding:0;}
.topbar .logo__mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;}
.topbar .logo__text b{font-size:14px;}
.topbar .logo__text i{font-size:10px;letter-spacing:.1em;}
.burger{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--glass-border);
  display:grid;place-items:center;color:var(--text-hi);background:var(--glass);
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.6);
  backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:55;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- Ticker ---------- */
.ticker{
  position:sticky;top:0;z-index:50;height:52px;
  display:flex;align-items:center;gap:18px;
  padding:0 24px;background:rgba(10,16,32,.78);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(120,200,255,.12);
}
.ticker::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.6),transparent);
}
.ticker__name{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-mid);white-space:nowrap;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px var(--ok);}
.ticker__clock{display:flex;align-items:center;gap:12px;margin-left:auto;}
.clock-unit{display:flex;align-items:baseline;gap:4px;}
.clock-unit b{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:22px;color:var(--accent-amber);line-height:1;
}
.clock-unit span{font-size:12px;color:var(--text-low);}
.ticker__btn{
  height:32px;padding:0 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(46,211,232,.5);color:var(--brand-cyan);
  font-size:13px;display:inline-flex;align-items:center;gap:6px;
  transition:background .2s ease,color .2s ease;
}
.ticker__btn:hover{background:rgba(46,211,232,.12);color:#bff2fa;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid rgba(120,200,255,.1);}
.hero__bg{position:absolute;inset:0;}
.hero__bg img{width:100%;height:100%;object-fit:cover;}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,8,15,.72),rgba(5,8,15,.88) 60%,var(--bg-abyss)),
    radial-gradient(700px 320px at 78% 18%,rgba(46,211,232,.18),transparent 70%);
}
.hero__inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);
  gap:40px;align-items:center;padding:72px 0 76px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--brand-cyan);}
.breadcrumb i{font-size:10px;}
.hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;letter-spacing:-.01em;}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{margin-top:18px;max-width:560px;font-size:17px;color:var(--text-mid);}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--glass);border:1px solid var(--glass-border);
  font-size:13px;color:var(--brand-cyan);margin-bottom:22px;
}
.badge--hot{color:var(--accent-magenta);border-color:rgba(255,78,136,.4);}
.badge--amber{color:var(--accent-amber);border-color:rgba(255,176,58,.4);}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,filter .2s ease;
}
.btn--primary{
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  color:#04111b;box-shadow:var(--shadow-glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow-hi);}
.btn--primary:active{transform:translateY(0);filter:brightness(.94);}
.btn--ghost{border:1px solid rgba(46,211,232,.45);color:var(--brand-cyan);}
.btn--ghost:hover{background:rgba(46,211,232,.1);color:#c5f4fb;transform:translateY(-2px);}
.btn--soft{border:1px solid var(--glass-border);background:var(--glass);color:var(--text-hi);}
.btn--soft:hover{background:var(--glass-strong);transform:translateY(-2px);}

.hero-card{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:22px;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-card h2{font-size:16px;color:var(--text-hi);margin-bottom:14px;}
.hero-card__row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed rgba(120,200,255,.14);font-size:14px;
}
.hero-card__row:last-of-type{border-bottom:0;}
.hero-card__row span{color:var(--text-mid);}
.hero-card__row b{font-family:var(--font-num);font-variant-numeric:tabular-nums;color:var(--text-hi);font-size:15px;}
.hero-card__row b.cyan{color:var(--brand-cyan);}
.hero-card__tip{
  margin-top:16px;padding:12px 14px;border-radius:12px;
  background:rgba(255,176,58,.08);border:1px solid rgba(255,176,58,.24);
  font-size:13px;color:#ffd79a;line-height:1.7;
}

/* ---------- Sections ---------- */
.section{padding:88px 0;border-bottom:1px solid rgba(120,200,255,.08);}
.section--deep{background:var(--bg-deep);}
.section--elev{background:var(--bg-elev);}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section__head h2{font-size:clamp(24px,3vw,36px);}
.section__head p{color:var(--text-mid);font-size:15px;margin-top:10px;max-width:640px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--brand-cyan);
  border-bottom:1px solid transparent;padding-bottom:2px;white-space:nowrap;
  transition:border-color .2s ease,gap .2s ease;
}
.link-more:hover{border-color:var(--brand-cyan);gap:12px;}

/* ---------- Index layout ---------- */
.idx-wrap{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:40px;align-items:start;}
.group{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:6px 20px 14px;margin-bottom:22px;
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  scroll-margin-top:80px;
}
.group__head{
  display:flex;align-items:center;gap:14px;
  padding:18px 0 14px;border-bottom:1px solid rgba(120,200,255,.12);
}
.group__num{
  width:38px;height:38px;flex:0 0 38px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(46,211,232,.55);
  font-family:var(--font-num);font-size:14px;color:var(--brand-cyan);
  box-shadow:0 0 16px rgba(46,211,232,.16) inset;
}
.group__head h2{font-size:20px;}
.group__head .group__count{
  margin-left:auto;font-size:12px;color:var(--text-low);
  border:1px solid var(--glass-border);border-radius:var(--radius-pill);
  padding:3px 12px;white-space:nowrap;
}
.index-list{padding:4px 0;}
.index-item{
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 14px;border-radius:12px;border-bottom:1px solid rgba(120,200,255,.07);
  transition:background .2s ease,transform .2s ease;
}
.index-item:last-child{border-bottom:0;}
.index-item:hover{background:rgba(46,211,232,.07);transform:translateX(3px);}
.index-item .code{
  flex:0 0 42px;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;color:var(--brand-cyan);padding-top:3px;letter-spacing:.02em;
}
.index-item h3{font-size:16px;font-weight:600;color:var(--text-hi);margin-bottom:4px;}
.index-item p{font-size:14px;color:var(--text-mid);margin:0;line-height:1.7;}
.index-item .arrow{margin-left:auto;color:var(--text-low);font-size:12px;padding-top:8px;transition:color .2s ease,transform .2s ease;}
.index-item:hover .arrow{color:var(--brand-cyan);transform:translateX(3px);}
.tag{
  display:inline-block;font-size:11px;line-height:1.6;
  padding:1px 9px;border-radius:var(--radius-pill);
  border:1px solid var(--glass-border);color:var(--text-mid);background:rgba(255,255,255,.03);
  margin-right:8px;vertical-align:1px;
}
.tag--cyan{color:var(--brand-cyan);border-color:rgba(46,211,232,.4);}
.tag--amber{color:var(--accent-amber);border-color:rgba(255,176,58,.38);}

/* ---------- Sticky TOC ---------- */
.toc{
  position:sticky;top:76px;
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:20px;
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
}
.toc h2{font-size:14px;color:var(--text-hi);letter-spacing:.06em;margin-bottom:14px;}
.toc ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text-mid);
  transition:background .2s ease,color .2s ease;
}
.toc a:hover,.toc a.is-active{background:rgba(46,211,232,.09);color:var(--text-hi);}
.toc a .n{font-family:var(--font-num);font-size:12px;color:var(--brand-cyan);}
.toc__note{
  margin-top:16px;padding-top:14px;border-top:1px solid rgba(120,200,255,.12);
  font-size:12.5px;color:var(--text-low);line-height:1.75;
}

/* ---------- Figure / split ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;}
.figure{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--glass-border);box-shadow:var(--shadow-card);
  min-height:280px;background:var(--bg-elev);
}
.figure img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .5s ease;}
.figure:hover img{transform:scale(1.04);}
.figure__cap{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:14px;color:var(--text-hi);
  background:linear-gradient(180deg,transparent,rgba(5,8,15,.9));
}
.figure.is-fallback{display:grid;place-items:center;background:linear-gradient(135deg,rgba(16,26,46,.95),rgba(10,16,32,.95));}
.figure.is-fallback::after{
  content:attr(data-fallback);font-size:14px;color:var(--text-low);
}
.checklist{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.checklist li{display:flex;gap:12px;font-size:15px;color:var(--text-mid);}
.checklist i{color:var(--brand-cyan);margin-top:5px;}
.checklist b{color:var(--text-hi);font-weight:600;}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-card);padding:24px 22px;
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.stat:hover{transform:translateY(-3px);border-color:rgba(46,211,232,.35);}
.stat b{
  display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:34px;line-height:1.1;
  background:linear-gradient(135deg,var(--brand-cyan),var(--brand-indigo));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--text-mid);}

/* ---------- CTA ---------- */
.cta-block{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:linear-gradient(135deg,rgba(16,26,46,.96),rgba(10,16,32,.96));
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  padding:40px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:36px;align-items:center;
}
.cta-block::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand-cyan),transparent);
}
.cta-block h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;}
.cta-block p{color:var(--text-mid);font-size:15px;}
.form{display:flex;flex-direction:column;gap:14px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;color:var(--text-mid);}
.field input,.field textarea{
  width:100%;background:rgba(5,8,15,.6);border:1px solid var(--glass-border);
  border-radius:12px;padding:12px 14px;font-size:14px;color:var(--text-hi);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low);}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(46,211,232,.7);
  box-shadow:0 0 0 4px rgba(46,211,232,.14);
}
.field textarea{min-height:88px;resize:vertical;}
.form__hint{font-size:12.5px;color:var(--text-low);}
.form__error{display:none;font-size:13px;color:var(--err);align-items:center;gap:6px;}
.form__error.is-on{display:flex;}
.form__ok{
  display:none;align-items:center;gap:10px;padding:16px 18px;border-radius:14px;
  background:rgba(53,214,160,.08);border:1px solid rgba(53,214,160,.35);
  color:#9df0d2;font-size:14px;
}
.form__ok.is-on{display:flex;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq details{
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:var(--radius-card);overflow:hidden;
  backdrop-filter:blur(14px);transition:border-color .2s ease;
}
.faq details[open]{border-color:rgba(46,211,232,.34);}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:17px;font-weight:500;color:var(--text-hi);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .plus{
  margin-left:auto;width:26px;height:26px;flex:0 0 26px;border-radius:50%;
  border:1px solid rgba(46,211,232,.45);color:var(--brand-cyan);
  display:grid;place-items:center;font-size:14px;line-height:1;
  transition:transform .24s ease,background .2s ease;
}
.faq details[open] summary .plus{transform:rotate(45deg);background:rgba(46,211,232,.14);}
.faq .answer{padding:0 22px 20px;color:var(--text-mid);font-size:15px;line-height:1.85;}

/* ---------- Related entries ---------- */
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.related-card{
  display:flex;align-items:center;gap:16px;
  padding:20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-border);
  backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(46,211,232,.4);background:var(--glass-strong);}
.related-card__icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(46,211,232,.18),rgba(74,92,255,.18));
  border:1px solid var(--glass-border);color:var(--brand-cyan);font-size:16px;
}
.related-card h3{font-size:16px;margin-bottom:4px;}
.related-card p{font-size:13px;color:var(--text-mid);margin:0;}
.related-card i.go{margin-left:auto;color:var(--text-low);font-size:13px;transition:transform .2s ease,color .2s ease;}
.related-card:hover i.go{color:var(--brand-cyan);transform:translateX(4px);}

/* ---------- Footer ---------- */
.footer{
  margin-top:auto;background:var(--bg-deep);
  border-top:1px solid rgba(120,200,255,.12);
  padding:64px 0 26px;position:relative;
}
.footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(46,211,232,.55),transparent);
}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer h3{font-size:14px;color:var(--text-hi);margin-bottom:16px;letter-spacing:.06em;}
.footer ul{display:flex;flex-direction:column;gap:10px;}
.footer li,.footer p{font-size:13.5px;color:var(--text-mid);line-height:1.8;}
.footer a{color:var(--text-mid);transition:color .2s ease;}
.footer a:hover{color:var(--brand-cyan);}
.footer__brand .logo{padding:0 0 16px;}
.footer__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer__tags span{
  font-size:12px;padding:4px 11px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--glass-border);color:var(--text-mid);
}
.footer__bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(120,200,255,.1);
  font-size:13px;color:var(--text-low);
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--sidebar-w:76px;}
  .sidebar{padding:20px 10px;align-items:center;}
  .logo{justify-content:center;padding-bottom:16px;}
  .logo__text{display:none;}
  .nav-title{display:none;}
  .nav-item{justify-content:center;padding:0;width:48px;}
  .nav-item .nav-label{display:none;}
  .nav-item:hover{transform:none;}
  .side-cta{width:48px;padding:0;font-size:0;gap:0;}
  .side-cta i{font-size:16px;}
  .side-meta{display:none;}
  .idx-wrap{grid-template-columns:minmax(0,1fr);gap:0;}
  .toc{display:none;}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);width:280px;align-items:stretch;padding:20px 14px;}
  .sidebar.is-open{transform:translateX(0);}
  .sidebar .logo{justify-content:flex-start;}
  .sidebar .logo__text{display:flex;}
  .sidebar .nav-title{display:block;}
  .sidebar .nav-item{justify-content:flex-start;padding:0 12px;width:auto;}
  .sidebar .nav-item .nav-label{display:inline;}
  .sidebar .side-cta{width:auto;padding:0 20px;font-size:14px;}
  .sidebar .side-meta{display:block;}
  .main{margin-left:0;}
  .topbar{display:flex;}
  .ticker{top:56px;padding:0 16px;gap:12px;}
  .ticker__name{font-size:13px;}
  .hero__inner{grid-template-columns:minmax(0,1fr);padding:48px 0 56px;}
  .section{padding:64px 0;}
  .split{grid-template-columns:minmax(0,1fr);}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-block{grid-template-columns:minmax(0,1fr);padding:30px;}
  .related{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767px){
  .ticker{height:auto;flex-wrap:wrap;padding:10px 16px;gap:10px;}
  .ticker__clock{margin-left:0;gap:10px;}
  .clock-unit b{font-size:19px;}
  .ticker__btn{margin-left:auto;}
  .hero__inner{padding:40px 0 48px;}
  .hero__sub{font-size:15.5px;}
  .section{padding:48px 0;}
  .section__head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .index-item{padding:12px 10px;gap:10px;}
  .index-item .code{flex-basis:34px;font-size:12px;}
  .related{grid-template-columns:minmax(0,1fr);}
  .footer{padding:48px 0 22px;}
  .footer__grid{grid-template-columns:minmax(0,1fr);}
  .footer__bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .hero__actions{width:100%;}
}
@media (max-width:520px){
  :root{--gutter:16px;}
  .stats{grid-template-columns:minmax(0,1fr);}
  .group{padding:6px 14px 10px;}
  .group__head{gap:10px;}
  .group__head h2{font-size:17px;}
  .faq summary{font-size:15.5px;padding:16px;}
  .faq .answer{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}