/* roulang page: index */
:root{
  --bg:#070B14;
  --bg-alt:#0B1220;
  --cyan:#22D3EE;
  --blue:#38BDF8;
  --purple:#8B5CF6;
  --amber:#FBBF24;
  --ok:#34D399;
  --warn:#FB7185;
  --text:#E6EDF7;
  --muted:#93A3BC;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.04);
  --glass-strong:rgba(255,255,255,.06);
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-glass:0 20px 60px rgba(0,0,0,.45);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:15px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(34,211,238,.3)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#050810}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(34,211,238,.4)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:64px 0;position:relative}
.section-alt{background:var(--bg-alt)}
.grid-texture{
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
}
.glow-soft{
  background:radial-gradient(600px 300px at 20% 0%,rgba(34,211,238,.10),transparent 70%),
             radial-gradient(520px 260px at 85% 20%,rgba(139,92,246,.10),transparent 70%);
  pointer-events:none;
}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-family:var(--font-num)}
.section-title{font-size:clamp(22px,3vw,32px)}
.section-lead{color:var(--muted);font-size:15px;max-width:44em;margin-top:12px}
.muted{color:var(--muted)}

.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.card{padding:22px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.42);box-shadow:var(--shadow-glass)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;letter-spacing:.02em;line-height:1;
  padding:6px 11px;border-radius:999px;
  border:1px solid var(--line);color:var(--muted);
  background:rgba(255,255,255,.03);font-family:var(--font-num);
}
.badge-cyan{color:#A5F3FC;border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.1)}
.badge-purple{color:#DDD6FE;border-color:rgba(139,92,246,.42);background:rgba(139,92,246,.12)}
.badge-amber{color:#FDE68A;border-color:rgba(251,191,36,.4);background:rgba(251,191,36,.1)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease}
.btn-primary{background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04121B;box-shadow:0 0 24px rgba(34,211,238,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(34,211,238,.55);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(34,211,238,.45);color:#A5F3FC;background:rgba(34,211,238,.06)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan);background:rgba(34,211,238,.12)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{color:#A5F3FC;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(4px)}

.dock-wrap{position:fixed;top:0;left:0;right:0;z-index:60;padding:16px 20px;display:flex;justify-content:center;pointer-events:none}
.dock{
  pointer-events:auto;width:100%;max-width:1120px;
  display:flex;align-items:center;gap:16px;justify-content:space-between;
  padding:10px 14px;border-radius:18px;
  background:rgba(11,18,32,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dock.is-scrolled{background:rgba(9,14,26,.92);box-shadow:0 12px 40px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.07);border-color:rgba(255,255,255,.14)}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;white-space:nowrap}
.logo-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px;background:linear-gradient(135deg,var(--cyan),var(--purple));display:grid;place-items:center;box-shadow:0 0 18px rgba(34,211,238,.4)}
.logo-mark span{width:9px;height:9px;border-radius:3px;background:#04121B;display:block}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 14px;border-radius:999px;font-size:14px;color:#B7C4D8;transition:color .2s ease,background .2s ease,box-shadow .2s ease}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:#A5F3FC;background:rgba(34,211,238,.12);box-shadow:inset 0 -2px 0 rgba(34,211,238,.85)}
.dock-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:#B7C4D8;background:rgba(255,255,255,.03);transition:color .2s ease,border-color .2s ease,background .2s ease}
.icon-btn:hover{color:#A5F3FC;border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08)}
.dock .btn-primary{min-height:44px;padding:0 18px;font-size:14px}
.menu-btn{display:none}
.search-panel{
  position:absolute;top:78px;left:50%;transform:translateX(-50%) translateY(-8px);
  width:min(660px,calc(100vw - 40px));padding:18px;
  opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.search-panel.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.search-field{
  width:100%;height:48px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--text);padding:0 14px;
}
.search-field:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.hot-tags button{font-size:12px;padding:7px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.03);transition:all .2s ease}
.hot-tags button:hover{color:#A5F3FC;border-color:rgba(34,211,238,.45)}
.mobile-panel{display:none;width:100%;max-width:1120px;margin-top:10px;padding:12px;pointer-events:auto}
.mobile-panel.open{display:block}
.mobile-panel a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;color:#C8D4E6;font-size:15px}
.mobile-panel a.active{color:#A5F3FC;background:rgba(34,211,238,.12)}
.mobile-panel a:hover{background:rgba(255,255,255,.05)}

.hero{position:relative;padding:150px 0 96px;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.5}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.92) 0%,rgba(7,11,20,.86) 45%,rgba(7,11,20,.97) 100%)}
.hero-inner{position:relative;display:grid;gap:32px;grid-template-columns:1fr;align-items:center}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.22;margin-top:16px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,var(--cyan),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:16px;font-size:clamp(17px,2.2vw,21px);font-weight:600;color:#DDE7F5}
.hero-lead{margin-top:14px;color:var(--muted);max-width:40em;font-size:15px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-card{padding:24px}
.hero-card h2{font-size:16px;color:#DDE7F5}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:14px}
.point{display:flex;gap:12px;align-items:flex-start;padding-bottom:14px;border-bottom:1px solid var(--line-soft)}
.point:last-child{border-bottom:0;padding-bottom:0}
.point-icon{width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.35);color:#DDD6FE}
.point strong{display:block;font-size:14px;font-weight:600;color:#E8EFFA}
.point span{font-size:13px;color:var(--muted)}

.pain-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:34px}
.pain-card{position:relative;padding:24px}
.pain-card .num{font-family:var(--font-num);font-size:13px;letter-spacing:.08em;color:var(--amber)}
.pain-card h3{font-size:18px;margin-top:12px}
.pain-card p{color:var(--muted);font-size:14px;margin-top:8px}
.pain-card.wide{grid-column:span 1}

.steps{display:grid;gap:20px;grid-template-columns:1fr;margin-top:34px}
.step{position:relative;padding:24px;border-left:2px solid rgba(34,211,238,.5)}
.step .dot{position:absolute;left:-7px;top:28px;width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 16px rgba(34,211,238,.9)}
.step h3{font-size:18px}
.step p{color:var(--muted);font-size:14px;margin-top:8px}
.split{display:grid;gap:28px;grid-template-columns:1fr;align-items:center;margin-top:34px}
.figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);position:relative;aspect-ratio:16/9;background:rgba(255,255,255,.03)}
.figure img{width:100%;height:100%;object-fit:cover}

.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.metric{padding:24px 20px;text-align:left}
.metric .value{font-family:var(--font-num);font-size:clamp(28px,4vw,40px);font-weight:700;color:var(--cyan);text-shadow:0 0 26px rgba(34,211,238,.45);line-height:1.1}
.metric .value.amber{color:var(--amber);text-shadow:0 0 26px rgba(251,191,36,.35)}
.metric .label{margin-top:10px;font-size:13px;color:var(--muted)}

.cms-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.view-switch{display:flex;gap:6px;padding:4px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.view-switch button{padding:7px 14px;border-radius:9px;font-size:13px;color:var(--muted);transition:all .2s ease}
.view-switch button.active{color:#04121B;background:linear-gradient(135deg,var(--cyan),var(--blue))}
.cms-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:28px}
.cms-card{display:flex;flex-direction:column;padding:0;overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.cms-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.42);box-shadow:var(--shadow-glass)}
.cms-thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(255,255,255,.03);display:block}
.cms-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.cms-card:hover .cms-thumb img{transform:scale(1.04)}
.cms-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.cms-title{font-size:17px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-title a:hover{color:#A5F3FC}
.cms-sum{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line-soft);font-size:12px;color:var(--muted);font-family:var(--font-num)}
.cms-list{display:flex;flex-direction:column;margin-top:28px;border-radius:var(--radius-card);overflow:hidden}
.cms-row{display:flex;gap:16px;padding:18px 20px;border-bottom:1px solid var(--line-soft);transition:background .2s ease;align-items:center}
.cms-row:last-child{border-bottom:0}
.cms-row:hover{background:rgba(255,255,255,.03)}
.cms-row .time{flex:0 0 108px;font-size:13px;color:var(--amber);font-family:var(--font-num)}
.cms-row .row-main{flex:1;min-width:0}
.cms-row .row-main h3{font-size:16px;font-weight:600}
.cms-row .row-main p{color:var(--muted);font-size:13px;margin-top:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.empty{display:none;flex-direction:column;align-items:center;gap:12px;padding:56px 20px;text-align:center;border:1px dashed var(--line);border-radius:var(--radius-card);margin-top:28px}
.empty.show{display:flex}
.empty .icon{width:48px;height:48px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted)}

.quotes{display:grid;gap:20px;grid-template-columns:1fr;margin-top:32px}
.quote{padding:24px}
.quote p{font-size:15px;color:#DCE6F4}
.who{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft)}
.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:15px;color:#04121B;background:linear-gradient(135deg,var(--cyan),var(--purple))}
.who .name{font-size:14px;font-weight:600}
.who .role{font-size:12px;color:var(--muted)}

.faq{margin-top:30px;display:flex;flex-direction:column;gap:12px}
.faq details{padding:0 22px;overflow:hidden}
.faq summary{min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:#A5F3FC;transition:transform .2s ease;font-family:var(--font-num)}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{box-shadow:inset 2px 0 0 var(--cyan)}
.faq summary{padding-left:14px}
.faq .answer{padding:0 14px 20px 14px;color:var(--muted);font-size:14px}

.cta-bar{display:flex;flex-direction:column;gap:18px;padding:28px;align-items:flex-start}
.cta-bar h2{font-size:clamp(20px,2.6vw,26px)}
.cta-bar p{color:var(--muted);font-size:14px;margin-top:8px}

footer.site-footer{background:#050810;border-top:1px solid var(--line-soft);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr}
.footer-grid h3{font-size:14px;letter-spacing:.04em;color:#DDE7F5;margin-bottom:14px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-list a:hover{color:#A5F3FC}
.footer-note{font-size:13px;color:#6F7F98;line-height:1.9}
.footer-bottom{margin-top:36px;padding-top:18px;border-top:1px solid var(--line-soft);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#6F7F98}

@media (min-width:640px){
  .metrics{grid-template-columns:repeat(4,1fr)}
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:768px){
  .section{padding:96px 0}
  .hero{padding:180px 0 110px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
}
@media (min-width:1024px){
  .section{padding:120px 0}
  .hero-inner{grid-template-columns:1.35fr .95fr}
  .pain-grid{grid-template-columns:repeat(3,1fr)}
  .pain-card.wide{grid-column:span 2}
  .steps{grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:1fr 1fr}
  .cms-grid{grid-template-columns:repeat(3,1fr)}
  .quotes{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-btn{display:grid}
  .dock .btn-primary{display:none}
}
@media (max-width:767px){
  .cms-row{flex-direction:column;align-items:flex-start}
  .cms-row .time{flex:0 0 auto}
  .hero{padding:132px 0 72px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .metrics{grid-template-columns:1fr}
  .cms-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg-1:#070B14;
  --bg-2:#0B1220;
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.07);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --text:#E6EDF7;
  --text-2:#B9C4D4;
  --muted:#8C99AD;
  --cyan:#22D3EE;
  --cyan-2:#38BDF8;
  --purple:#8B5CF6;
  --amber:#FBBF24;
  --ok:#34D399;
  --warn:#FB7185;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.08), 0 20px 60px rgba(0,0,0,.45);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);
  background-color:var(--bg-1);
  background-image:
    radial-gradient(900px 560px at 10% -6%, rgba(34,211,238,.10), transparent 62%),
    radial-gradient(760px 520px at 96% 4%, rgba(139,92,246,.12), transparent 64%),
    linear-gradient(180deg,#070B14 0%,#0B1220 44%,#070B14 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 50% 18%, rgba(0,0,0,.55), transparent 78%);
  mask-image:radial-gradient(circle at 50% 18%, rgba(0,0,0,.55), transparent 78%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0}
h1,h2,h3,h4{margin:0;color:#fff;font-weight:700;letter-spacing:.01em;line-height:1.32}
p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:8px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--cyan);color:#04121A;padding:10px 16px;border-radius:0 0 10px 0;font-size:14px}
.skip-link:focus{left:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;position:relative;z-index:1}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:calc(100% - 32px);max-width:1120px;z-index:60;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:10px 16px;border-radius:18px;
  background:rgba(9,14,24,.60);
  border:1px solid var(--border);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.dock.scrolled{
  background:rgba(8,13,22,.92);
  border-color:var(--border-strong);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10), 0 14px 40px rgba(0,0,0,.5);
}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;letter-spacing:.01em;white-space:nowrap}
.logo-mark{
  width:26px;height:26px;border-radius:9px;flex:0 0 26px;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  display:grid;place-items:center;
  box-shadow:0 0 18px rgba(34,211,238,.45);
}
.logo-mark span{width:9px;height:9px;border-radius:3px;background:#070B14;display:block}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:9px 14px;border-radius:10px;font-size:14px;color:var(--text-2);
  transition:color .2s ease, background .2s ease, box-shadow .2s ease;white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{
  color:#7DE7F7;background:rgba(34,211,238,.10);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.28);
}
.dock-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:44px;height:44px;display:grid;place-items:center;cursor:pointer;
  border-radius:var(--r-btn);border:1px solid var(--border);background:var(--glass);color:var(--text-2);
  transition:color .2s ease, background .2s ease, border-color .2s ease;
}
.icon-btn:hover{color:#fff;background:rgba(255,255,255,.07);border-color:var(--border-strong)}
.menu-btn{display:none}
.show-sm{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease, filter .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan-2));
  color:#04121A;box-shadow:0 0 24px rgba(34,211,238,.35);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 34px rgba(34,211,238,.5)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 16px rgba(34,211,238,.3)}
.btn-ghost{
  background:var(--glass);border-color:var(--border-strong);color:#7DE7F7;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.45)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  background:none;border:none;color:#7DE7F7;min-height:auto;padding:0 2px;
}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- 搜索面板 ---------- */
.search-panel{
  position:fixed;top:84px;left:50%;z-index:70;
  width:calc(100% - 32px);max-width:620px;padding:20px;
  border-radius:18px;background:rgba(8,13,22,.94);
  border:1px solid var(--border);box-shadow:var(--shadow-card);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  opacity:0;visibility:hidden;transform:translateX(-50%) translateY(-8px);
  transition:opacity .22s ease, transform .22s ease, visibility .22s ease;
}
.search-panel.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.search-close{
  position:absolute;top:12px;right:12px;width:36px;height:36px;
  display:grid;place-items:center;border-radius:10px;cursor:pointer;
  background:var(--glass);border:1px solid var(--border);color:var(--text-2);
}
.search-close:hover{color:#fff;background:rgba(255,255,255,.08)}
.search-field{display:flex;gap:10px;align-items:center;margin-top:6px}
.search-field .field-icon{color:var(--muted);flex:0 0 auto}
.search-field input{
  flex:1 1 auto;min-width:0;height:46px;padding:0 14px;color:var(--text);
  background:rgba(255,255,255,.05);border:1px solid var(--border);border-radius:12px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.search-field input::placeholder{color:var(--muted)}
.search-field input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.hot-terms{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:var(--muted)}
.hot-terms a{
  padding:5px 12px;border-radius:999px;background:var(--glass);
  border:1px solid var(--border);color:var(--text-2);font-size:12px;letter-spacing:.02em;
}
.hot-terms a:hover{color:#7DE7F7;border-color:rgba(34,211,238,.42);background:rgba(34,211,238,.10)}

/* ---------- 通用区块 ---------- */
.section{padding:56px 0}
.section-head{margin-bottom:26px}
.section-head h2{font-size:clamp(22px,3vw,32px)}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15px;max-width:760px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;padding:4px 12px;font-size:12px;letter-spacing:.02em;
  background:rgba(255,255,255,.06);border:1px solid var(--border);color:var(--text-2);
}
.badge-cyan{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.35);color:#7DE7F7}
.badge-purple{background:rgba(139,92,246,.14);border-color:rgba(139,92,246,.38);color:#C4B5FD}
.badge-amber{background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.35);color:#FCD34D}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;padding:120px 0 28px}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.20;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(7,11,20,.55) 0%, rgba(7,11,20,.96) 100%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;padding:0;margin:0 0 18px;font-size:13px;color:var(--muted);letter-spacing:.02em;
}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li::after{content:"/";margin-left:8px;color:rgba(255,255,255,.22)}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:#7DE7F7}
.article-hero h1{
  font-size:clamp(28px,4.4vw,44px);line-height:1.28;
  max-width:920px;margin:14px 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;letter-spacing:.02em;color:var(--text-2);
  background:var(--glass);border:1px solid var(--border);border-radius:999px;
  padding:6px 14px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.meta-chip .dot{width:6px;height:6px;border-radius:999px;background:var(--amber);box-shadow:0 0 8px rgba(251,191,36,.8)}
.meta-chip .dot-cyan{background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,.8)}
.meta-chip strong{color:#fff;font-weight:600}

/* ---------- 正文布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:28px;align-items:start}
.article-panel{
  max-width:820px;padding:clamp(20px,3vw,38px);
  border-radius:20px;border:1px solid var(--border);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
}
.article-body{font-size:16px;line-height:1.85;color:var(--text-2);max-width:40em}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em;color:var(--text-2)}
.article-body h2{
  position:relative;padding-left:14px;margin:2.2em 0 .9em;
  font-size:clamp(20px,2.4vw,26px);color:#fff;scroll-margin-top:112px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:999px;
  background:linear-gradient(180deg,var(--cyan),var(--cyan-2));
  box-shadow:0 0 12px rgba(34,211,238,.6);
}
.article-body h3{margin:1.8em 0 .7em;font-size:19px;color:#fff;scroll-margin-top:112px}
.article-body h4{margin:1.4em 0 .6em;font-size:17px;color:#fff}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em;color:var(--text-2)}
.article-body li{margin-bottom:.6em}
.article-body li::marker{color:var(--cyan)}
.article-body strong{color:#fff;font-weight:600}
.article-body a{color:#7DE7F7;border-bottom:1px solid rgba(34,211,238,.45)}
.article-body a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.article-body blockquote{
  margin:1.6em 0;padding:14px 20px;border-left:3px solid var(--cyan);
  border-radius:0 12px 12px 0;background:rgba(34,211,238,.07);color:var(--text);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:100%;height:auto;margin:1.6em auto;
  border-radius:var(--r-img);border:1px solid var(--border);
}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:.7em;letter-spacing:.02em}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14px}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
.article-body th{color:#7DE7F7;font-size:12px;letter-spacing:.02em;background:rgba(34,211,238,.06)}
.article-body td{color:var(--text-2)}
.article-body code{
  background:rgba(255,255,255,.07);border:1px solid var(--border);
  padding:2px 6px;border-radius:6px;font-size:14px;color:#A5F3FC;
}
.article-body hr{border:none;border-top:1px solid var(--border);margin:2em 0}

.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:60px 20px;text-align:center;
}
.empty-state svg{width:48px;height:48px;color:var(--muted)}
.empty-state p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:18px}
.side-card{
  padding:20px;border-radius:var(--r-card);
  border:1px solid var(--border);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.side-card h2,.side-card h3{
  display:flex;align-items:center;gap:8px;
  font-size:15px;letter-spacing:.02em;color:#fff;margin-bottom:14px;
}
.side-card h2::before,.side-card h3::before{
  content:"";width:6px;height:6px;border-radius:999px;flex:0 0 6px;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.toc-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:2px;font-size:14px}
.toc-list a{display:block;padding:8px 10px;border-radius:9px;color:var(--text-2);transition:background .2s ease,color .2s ease}
.toc-list a:hover{background:rgba(255,255,255,.05);color:#7DE7F7}
.rec-item{display:flex;gap:12px;padding:10px;border-radius:12px;transition:background .2s ease}
.rec-item:hover{background:rgba(255,255,255,.05)}
.rec-thumb{width:64px;height:64px;flex:0 0 64px;border-radius:10px;object-fit:cover;border:1px solid var(--border);background:#0d1526}
.rec-title{
  font-size:14px;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-meta{font-size:12px;color:var(--amber);letter-spacing:.02em;margin-top:6px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  padding:6px 12px;border-radius:999px;font-size:12px;letter-spacing:.02em;
  border:1px solid var(--border);background:var(--glass);color:var(--text-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:#7DE7F7;border-color:rgba(34,211,238,.42);background:rgba(34,211,238,.10)}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.side-link:hover{background:rgba(255,255,255,.05);color:#7DE7F7;border-color:var(--border)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--border);background:var(--glass);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.35);box-shadow:0 18px 50px rgba(0,0,0,.5)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#0d1526,#111c33)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.card-body h3{font-size:18px;line-height:1.45}
.card-body p{
  font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  margin-top:auto;font-size:13px;color:var(--muted);letter-spacing:.02em;
}
.card-foot .time{color:var(--amber)}

/* ---------- 上一篇/下一篇 ---------- */
.nav-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px}
.pair-card{
  display:block;padding:20px;border-radius:var(--r-card);
  border:1px solid var(--border);background:var(--glass);
  transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.pair-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.38);background:rgba(255,255,255,.06)}
.pair-label{font-size:12px;letter-spacing:.02em;color:#7DE7F7}
.pair-title{display:block;margin-top:8px;font-size:15px;line-height:1.6;color:#fff}
.pair-desc{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:28px;border-radius:20px;
  background:linear-gradient(120deg, rgba(34,211,238,.12), rgba(139,92,246,.12));
  border:1px solid var(--border-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-band h2{font-size:clamp(20px,2.6vw,26px)}
.cta-band p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;margin-top:40px;padding:56px 0 26px;
  border-top:1px solid var(--border);background:rgba(6,10,18,.72);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff}
.footer-note{font-size:14px;color:var(--text-2);line-height:1.85;max-width:360px}
.site-footer h3{font-size:14px;letter-spacing:.02em;color:#fff;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-list a{color:var(--text-2);transition:color .2s ease}
.footer-list a:hover{color:#7DE7F7}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:36px;padding-top:20px;border-top:1px solid var(--border);
  font-size:13px;color:var(--muted);letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .layout{grid-template-columns:minmax(0,1fr) 292px}
}
@media (max-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .article-panel{max-width:none}
  .side-col{flex-direction:row;flex-wrap:wrap}
  .side-col > *{flex:1 1 300px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  .dock{gap:10px;padding:9px 12px;border-radius:16px}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:10px;display:none;
    background:rgba(8,13,22,.97);border:1px solid var(--border);border-radius:16px;
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    box-shadow:0 20px 50px rgba(0,0,0,.55);
  }
  .nav-links.open{display:flex}
  .nav-links a{min-height:44px;display:flex;align-items:center;padding:12px 14px;font-size:15px}
  .menu-btn{display:grid}
  .article-hero{padding:104px 0 20px}
  .article-body{max-width:none}
  .section{padding:52px 0}
  .nav-pair{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:640px){
  .hide-sm{display:none}
  .show-sm{display:inline}
  .logo{font-size:15px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .search-field{flex-wrap:wrap}
  .search-field input{flex:1 1 100%}
  .search-field .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
  .card:hover,.btn:hover,.pair-card:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --cyan:#22D3EE;
  --blue:#38BDF8;
  --purple:#8B5CF6;
  --amber:#FBBF24;
  --ok:#34D399;
  --warn:#FB7185;
  --text:#E8F0FA;
  --muted:#93A3B8;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.04);
  --inset:inset 0 1px 0 rgba(255,255,255,.08);
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html body{
  margin:0;padding-top:92px;background-color:var(--bg-0);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.8;letter-spacing:.01em;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
html h1,html h2,html h3,html h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.01em}
html p{margin:0}
html ul,html ol{margin:0;padding:0;list-style:none}
html a{color:inherit;text-decoration:none}
html img{max-width:100%;display:block}
html button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
html input{font:inherit}
html figure{margin:0}
html table{border-collapse:collapse}

body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:62px 62px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 72%);
  opacity:.6;
}
body::after{
  content:"";position:fixed;left:-10%;right:-10%;top:-20%;height:64vh;pointer-events:none;z-index:0;
  background:
    radial-gradient(620px 320px at 18% 0%,rgba(34,211,238,.13),transparent 70%),
    radial-gradient(520px 280px at 82% 8%,rgba(139,92,246,.12),transparent 70%);
}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
.skip-link{position:absolute;left:-9999px;top:0;background:#22D3EE;color:#04141F;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  width:min(1120px,calc(100% - 32px));
  display:flex;align-items:center;gap:14px;
  padding:10px 14px 10px 18px;border-radius:16px;
  background:rgba(11,18,32,.62);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:var(--inset),0 10px 30px rgba(0,0,0,.35);
  z-index:80;transition:background .2s ease,box-shadow .2s ease;
}
.dock.scrolled{background:rgba(9,14,26,.88);box-shadow:var(--inset),0 16px 44px rgba(0,0,0,.52)}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F2F7FF;white-space:nowrap;flex:none}
.logo-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:linear-gradient(135deg,#22D3EE,#38BDF8);
  display:grid;place-items:center;box-shadow:0 0 18px rgba(34,211,238,.45);
}
.logo-mark span{width:9px;height:9px;border-radius:3px;background:#06131C;display:block}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;border-radius:10px;
  font-size:14.5px;color:#9FB0C6;transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#E7F1FB;background:rgba(255,255,255,.05)}
.nav-links a.active{color:#22D3EE;background:rgba(34,211,238,.10)}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:5px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#22D3EE,#38BDF8);box-shadow:0 0 10px rgba(34,211,238,.85);
}
.dock-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{
  display:grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:#B7C7DB;
  transition:transform .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.5);color:#7DE6F5;background:rgba(34,211,238,.08)}
.menu-btn{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:linear-gradient(135deg,#22D3EE,#38BDF8);color:#04141F;box-shadow:0 0 24px rgba(34,211,238,.35);border:1px solid transparent}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(34,211,238,.55);filter:brightness(1.06);color:#04141F}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:rgba(255,255,255,.04);border:1px solid rgba(34,211,238,.35);color:#7DE6F5}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.75);color:#B6F2FB;box-shadow:0 0 22px rgba(34,211,238,.22)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{min-height:auto;padding:0;color:#22D3EE;background:none;border:0;font-size:14.5px}
.btn-text:hover{color:#8AECFA}
.btn-text .arrow{transition:transform .2s ease;display:inline-block}
.btn-text:hover .arrow{transform:translateX(4px)}
.dock .btn{min-height:40px;padding:0 16px;font-size:14.5px}

a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid #22D3EE;outline-offset:2px;border-radius:12px;
}

/* ---------- 搜索面板 ---------- */
.search-panel{
  position:fixed;top:88px;left:50%;width:min(660px,calc(100% - 32px));
  transform:translateX(-50%) translateY(-10px);
  padding:20px;border-radius:18px;background:rgba(9,14,26,.96);border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--shadow);z-index:90;opacity:0;visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.search-panel.open{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.search-head h2{font-size:16px;color:#EAF2FB}
.search-input{
  width:100%;height:48px;border-radius:12px;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);color:#EAF2FB;padding:0 14px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input::placeholder{color:#6F8098}
.search-input:focus{outline:none;border-color:#22D3EE;box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.hot-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12.5px;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.14);
  color:#A9BBD0;background:rgba(255,255,255,.03);transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:rgba(34,211,238,.5);color:#7DE6F5;background:rgba(34,211,238,.08)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:11.5px;letter-spacing:.02em;
  padding:4px 11px;border-radius:999px;border:1px solid rgba(34,211,238,.32);
  color:#A9E9F5;background:rgba(34,211,238,.10);
}
.badge-purple{color:#C9B8FF;background:rgba(139,92,246,.14);border-color:rgba(139,92,246,.36)}
.badge-amber{color:#FBD57B;background:rgba(251,191,36,.12);border-color:rgba(251,191,36,.32)}

/* ---------- 板块 ---------- */
.section{position:relative;z-index:1;padding:64px 0}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1024px){.section{padding:104px 0}}
.section-alt{background:var(--bg-1);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.section-head{max-width:760px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.02em;color:#8FD9EA;
  background:rgba(34,211,238,.09);border:1px solid rgba(34,211,238,.28);padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.section h2{font-size:clamp(22px,3vw,32px)}
.section .lead{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:660px}
.body-text{color:#B7C6D9;font-size:15.5px;line-height:1.85;margin-top:16px;max-width:40em}

/* ---------- 窄条 Hero ---------- */
.page-hero{
  position:relative;z-index:1;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  padding:48px 0 44px;
  background:
    linear-gradient(rgba(7,11,20,.72),rgba(7,11,20,.88)),
    url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.page-hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 240px at 12% 20%,rgba(34,211,238,.18),transparent 70%),
             radial-gradient(460px 220px at 88% 80%,rgba(139,92,246,.16),transparent 72%);
}
.page-hero-inner{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8C9CB2;margin-bottom:18px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#4E5C70}
.breadcrumb a{color:#9FB0C6;transition:color .2s ease}
.breadcrumb a:hover{color:#22D3EE}
.breadcrumb [aria-current]{color:#CFDCEB}
.page-hero h1{font-size:clamp(30px,4.6vw,44px);margin:14px 0 0}
.page-hero-lead{margin-top:16px;max-width:640px;color:#B7C6D9;font-size:16px;line-height:1.8}
.page-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.chip{
  font-size:12.5px;padding:5px 12px;border-radius:999px;color:#A9BBD0;
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.03);
}
.chip.warm{color:#FBD57B;border-color:rgba(251,191,36,.28);background:rgba(251,191,36,.08)}

/* ---------- 通用卡 ---------- */
.glass-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--inset),var(--shadow);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.glass-card:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.34)}

/* ---------- 导语分栏 ---------- */
.split{display:grid;gap:32px;align-items:center}
@media(min-width:900px){.split{grid-template-columns:1.05fr 1fr;gap:48px}}
.media{
  position:relative;border-radius:var(--r-img);overflow:hidden;background:#0D1726;
  aspect-ratio:16/9;border:1px solid rgba(255,255,255,.10);
}
.media img{width:100%;height:100%;object-fit:cover}
.media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,0),rgba(7,11,20,.35))}
.check-list{display:grid;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#C6D3E3}
.check-list .dot{width:7px;height:7px;border-radius:50%;background:#22D3EE;box-shadow:0 0 10px rgba(34,211,238,.85);margin-top:9px;flex:none}

/* ---------- 特征卡 2×2 ---------- */
.feature-grid{display:grid;gap:20px}
@media(min-width:768px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
.feature-card{position:relative;padding:24px 26px 26px}
.card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.num{font-size:12.5px;letter-spacing:.08em;color:#FBBF24;font-weight:600}
.card-icon{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:rgba(139,92,246,.16);border:1px solid rgba(139,92,246,.32);color:#C9B8FF;
}
.feature-card h3{font-size:18.5px;margin-bottom:10px}
.feature-card p{font-size:14.5px;color:#A9BACE;line-height:1.8}

/* ---------- 对照表 ---------- */
.table-wrap{
  border-radius:var(--r-card);border:1px solid var(--line);overflow:hidden;
  background:rgba(255,255,255,.03);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
table.compare{width:100%;border-collapse:collapse}
.compare caption{text-align:left;padding:18px 20px 0;font-size:13px;color:#8C9CB2}
.compare th{
  text-align:left;font-size:12.5px;font-weight:600;letter-spacing:.04em;color:#22D3EE;
  padding:16px 20px;border-bottom:1px solid rgba(34,211,238,.25);background:rgba(34,211,238,.05);
}
.compare td{padding:16px 20px;font-size:14.5px;color:#C6D3E3;border-bottom:1px solid rgba(255,255,255,.08);vertical-align:top;line-height:1.75}
.compare td:first-child{color:#E8F1FB;font-weight:600}
.compare tbody tr{transition:background .2s ease}
.compare tbody tr:hover{background:rgba(255,255,255,.03)}
.compare tbody tr:last-child td{border-bottom:0}
@media(max-width:768px){
  .compare thead{display:none}
  .compare,.compare tbody,.compare tr,.compare td{display:block;width:100%}
  .compare tr{border:1px solid var(--line);border-radius:14px;padding:12px 14px;margin:12px;background:rgba(255,255,255,.03)}
  .compare td{border:0;padding:6px 0;font-size:14px}
  .compare td::before{content:attr(data-label);display:block;font-size:11.5px;letter-spacing:.02em;color:#22D3EE;margin-bottom:2px}
}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;gap:20px}
@media(min-width:900px){.steps{grid-template-columns:repeat(3,1fr);gap:22px}}
.step-card{position:relative;padding:26px}
.step-card .node{width:12px;height:12px;border-radius:50%;background:#22D3EE;box-shadow:0 0 16px rgba(34,211,238,.9);margin-bottom:16px}
.step-card .step-num{font-size:12.5px;letter-spacing:.08em;color:#8FD9EA;font-weight:600}
.step-card h3{font-size:18.5px;margin:8px 0 10px}
.step-card p{font-size:14.5px;color:#A9BACE}
.step-note{
  margin-top:22px;display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:#FBD57B;
  background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.26);border-radius:14px;padding:14px 16px;
}

/* ---------- 场景横条 ---------- */
.scene-list{display:grid;gap:18px}
.scene-item{
  display:grid;gap:18px;align-items:center;padding:16px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);box-shadow:var(--inset);
  transition:transform .2s ease,border-color .2s ease;
}
.scene-item:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.32)}
@media(min-width:768px){.scene-item{grid-template-columns:236px 1fr;gap:24px;padding:18px 22px 18px 18px}}
.scene-item .media{aspect-ratio:16/9}
.scene-item h3{font-size:18px;margin:10px 0 8px}
.scene-item p{font-size:14.5px;color:#A9BACE;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .2s ease,background .2s ease;
}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:transparent;transition:background .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(34,211,238,.35);background:rgba(34,211,238,.05)}
.faq-item.open::before{background:#22D3EE;box-shadow:0 0 12px rgba(34,211,238,.85)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;text-align:left;font-size:15.5px;font-weight:600;color:#E8F1FB;
}
.faq-q .plus{position:relative;flex:none;width:22px;height:22px;transition:transform .2s ease}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:#22D3EE;border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:12px;height:2px}
.faq-q .plus::after{width:2px;height:12px;transition:transform .2s ease}
.faq-item.open .plus{transform:rotate(180deg)}
.faq-item.open .plus::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:#A9BACE;line-height:1.85}
.faq-item.open .faq-a{max-height:320px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  display:grid;gap:20px;align-items:center;padding:28px 28px;border-radius:20px;
  background:linear-gradient(120deg,rgba(34,211,238,.12),rgba(139,92,246,.10)),rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);box-shadow:var(--inset),var(--shadow);
}
@media(min-width:768px){.cta-band{grid-template-columns:1fr auto;padding:34px 40px;gap:32px}}
.cta-band h2{font-size:clamp(20px,2.4vw,26px)}
.cta-band p{margin-top:10px;color:#A9BACE;font-size:14.5px;max-width:48em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;z-index:1;margin-top:16px;background:#060A12;border-top:1px solid rgba(255,255,255,.08);padding:56px 0 28px}
.footer-grid{display:grid;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#F2F7FF}
.footer-note{color:var(--muted);font-size:13.5px;line-height:1.85;max-width:380px}
.site-footer h3{font-size:14px;font-weight:600;color:#DCE7F4;margin-bottom:14px;letter-spacing:.02em}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{color:#93A3B8;font-size:13.5px;line-height:1.7;transition:color .2s ease}
.footer-list a:hover{color:#22D3EE}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);color:#7C8DA3;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .nav-links a{padding:0 9px;font-size:14px}
}
@media(max-width:768px){
  html body{padding-top:84px}
  .dock{padding:8px 12px;gap:10px}
  .logo{font-size:15px}
  .menu-btn{display:grid}
  .nav-links{
    position:fixed;top:80px;left:16px;right:16px;display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:14px;border-radius:16px;background:rgba(9,14,26,.96);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:var(--shadow);
    max-height:70vh;overflow:auto;margin-left:0;
  }
  .nav-links.open{display:flex}
  .nav-links a{height:48px;padding:0 14px;font-size:15.5px}
  .nav-links a.active::after{display:none}
  .nav-links a:hover,.nav-links a.active{background:rgba(34,211,238,.12);color:#22D3EE}
  .search-panel{top:76px}
  .page-hero{padding:36px 0 34px;min-height:260px}
  .section .lead,.body-text{font-size:15px}
}
@media(max-width:520px){
  #searchToggle{display:none}
  .logo{font-size:14px;gap:8px}
  .dock-actions .btn{padding:0 12px;font-size:13.5px;min-height:38px}
  .chip-row{gap:6px}
}
@media(max-width:400px){
  .dock-actions .btn{display:none}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
  .glass-card:hover,.btn:hover,.scene-item:hover,.icon-btn:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg-1:#070B14;
  --bg-2:#0B1220;
  --cyan:#22D3EE;
  --sky:#38BDF8;
  --violet:#8B5CF6;
  --amber:#FBBF24;
  --success:#34D399;
  --warn:#FB7185;
  --text:#E8EEF8;
  --muted:#93A3B8;
  --muted-2:#6B7A8F;
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.20);
  --glass:rgba(255,255,255,.04);
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg-1);
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.55;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(680px 360px at 82% 4%,rgba(34,211,238,.14),transparent 70%),
    radial-gradient(560px 320px at 8% 30%,rgba(139,92,246,.12),transparent 72%);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px;position:relative;z-index:1}
header,main,footer{position:relative;z-index:1}

/* ---------- Dock 导航 ---------- */
.dock{
  position:fixed;
  top:16px;
  left:50%;
  transform:translateX(-50%);
  width:min(1120px,calc(100% - 32px));
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 14px;
  border-radius:18px;
  background:rgba(9,14,26,.62);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  z-index:60;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.dock.scrolled{
  background:rgba(7,11,20,.92);
  border-color:var(--border-strong);
  box-shadow:0 14px 44px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.08);
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  white-space:nowrap;
}
.logo-mark{
  width:26px;height:26px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 0 18px rgba(34,211,238,.45);
  flex:0 0 auto;
}
.logo-mark span{
  width:9px;height:9px;border-radius:50%;
  background:#04121A;
  box-shadow:0 0 0 3px rgba(4,18,26,.35);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin:0 auto;
}
.nav-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  transition:color .2s ease,background .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{
  color:var(--cyan);
  background:rgba(34,211,238,.10);
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.32);
}
.dock-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--muted);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--cyan);border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08);transform:translateY(-2px)}
.icon-btn:active{transform:translateY(1px)}
.menu-btn{display:none}
.search-panel{
  position:absolute;
  top:calc(100% + 12px);
  left:0;right:0;
  padding:18px;
  border-radius:18px;
  background:rgba(9,14,26,.96);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  display:none;
}
.search-panel.open{display:block}
.search-panel label{display:block;font-size:13px;color:var(--muted);letter-spacing:.02em;margin-bottom:8px}
.search-row{display:flex;gap:10px}
.search-row input{
  flex:1;
  min-height:44px;
  padding:0 14px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-row input::placeholder{color:var(--muted-2)}
.search-row input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.18)}
.hot-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.hot-words a{
  font-size:13px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--border);
  color:var(--muted);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.hot-words a:hover{color:var(--cyan);border-color:rgba(34,211,238,.45);background:rgba(34,211,238,.08)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--sky));
  color:#04121A;
  box-shadow:0 0 24px rgba(34,211,238,.35);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 34px rgba(34,211,238,.5)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border);
  color:var(--cyan);
}
.btn-ghost:hover{border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:auto;
  padding:0;
  background:none;
  border:none;
  color:var(--cyan);
  font-weight:600;
  cursor:pointer;
}
.btn-text .arrow{transition:transform .2s ease}
.btn-text:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:11.5px;
  letter-spacing:.02em;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
}
.badge-cyan{color:var(--cyan);background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.32)}
.badge-violet{color:#C4B5FD;background:rgba(139,92,246,.14);border-color:rgba(139,92,246,.36)}
.badge-amber{color:var(--amber);background:rgba(251,191,36,.10);border-color:rgba(251,191,36,.30)}
.badge-success{color:var(--success);background:rgba(52,211,153,.10);border-color:rgba(52,211,153,.30)}

/* ---------- Hero 窄条 ---------- */
.page-hero{
  position:relative;
  padding:132px 0 52px;
  background-image:linear-gradient(rgba(4,8,16,.82),rgba(7,11,20,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--border);
}
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted-2);margin-bottom:18px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.22)}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--cyan)}
.page-hero h1{
  font-size:clamp(30px,5vw,46px);
  font-weight:700;
  max-width:22em;
}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.hero-sub{
  margin-top:14px;
  max-width:660px;
  color:var(--muted);
  font-size:16px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}

/* ---------- 主体布局 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-2);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,3vw,32px)}
.section-head p{margin-top:12px;color:var(--muted);font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.16em;color:var(--cyan);text-transform:uppercase;margin-bottom:12px}

.layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:104px;
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:18px 14px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.toc-card h2{
  font-size:13px;
  letter-spacing:.14em;
  color:var(--muted-2);
  padding:0 12px 10px;
  text-transform:uppercase;
}
.toc{list-style:none}
.toc a{
  display:block;
  padding:10px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.toc a:hover{color:#fff;background:rgba(255,255,255,.04)}
.toc a.active{color:var(--cyan);background:rgba(34,211,238,.08);border-left-color:var(--cyan)}

.content{min-width:0}
.content section{scroll-margin-top:110px;margin-bottom:56px}
.content section:last-of-type{margin-bottom:0}
.sec-title{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px}
.sec-title h2{font-size:clamp(20px,2.4vw,26px)}
.sec-title .num{
  flex:0 0 auto;
  font-size:13px;
  font-weight:700;
  color:var(--cyan);
  background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.30);
  border-radius:999px;
  padding:4px 10px;
  margin-top:4px;
  letter-spacing:.04em;
}
.prose p{max-width:40em;color:#CBD6E6;font-size:16px;margin-bottom:1.2em}
.prose p:last-child{margin-bottom:0}
.prose ul{margin:0 0 1.2em;padding-left:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.prose ul li{position:relative;padding-left:22px;color:var(--muted);font-size:15px;max-width:40em}
.prose ul li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:50%;
  background:rgba(34,211,238,.85);
  box-shadow:0 0 10px rgba(34,211,238,.6);
}
.prose strong{color:#fff}

/* 图文行 */
.media-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  align-items:center;
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:22px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.media-row.reverse .media-figure{order:2}
.media-figure{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--border);
  background:#0A1120;
  aspect-ratio:16/10;
}
.media-figure img{width:100%;height:100%;object-fit:cover}
.media-body h3{font-size:19px;margin-bottom:10px}
.media-body p{color:var(--muted);font-size:15px;margin-bottom:10px}
.media-body .badge{margin-bottom:12px}

/* 卡片 */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.card{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  padding:24px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.compact{padding:18px 20px}
.icon-chip{
  width:38px;height:38px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(139,92,246,.16);
  border:1px solid rgba(139,92,246,.36);
  color:#C4B5FD;
  flex:0 0 auto;
}

/* 步骤时间线 */
.timeline{position:relative;padding-left:4px}
.timeline::before{
  content:"";
  position:absolute;
  left:15px;top:10px;bottom:14px;
  width:1px;
  background:linear-gradient(180deg,rgba(34,211,238,.7),rgba(34,211,238,.05));
}
.tl-item{position:relative;padding-left:48px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:5px;top:5px;
  width:22px;height:22px;border-radius:50%;
  background:rgba(34,211,238,.16);
  border:1px solid rgba(34,211,238,.65);
  box-shadow:0 0 16px rgba(34,211,238,.45);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:700;color:var(--cyan);
}
.tl-item h3{font-size:18px;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:15px;max-width:38em}

/* 数据条 */
.stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  padding:26px 22px;
  border:1px solid var(--border);
  border-radius:var(--r-card);
  background:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px) 0 0/26px 26px,
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px) 0 0/26px 26px,
    var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.stat .num{
  font-size:clamp(26px,3.4vw,36px);
  font-weight:700;
  color:var(--cyan);
  text-shadow:0 0 24px rgba(34,211,238,.45);
  line-height:1.2;
}
.stat.amber .num{color:var(--amber);text-shadow:0 0 24px rgba(251,191,36,.4)}
.stat p{margin-top:6px;font-size:13px;color:var(--muted);letter-spacing:.02em}

/* 提示行 */
.notice{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:14px;
  background:rgba(251,191,36,.07);
  border:1px solid rgba(251,191,36,.28);
  color:#F6D98A;
  font-size:14.5px;
}
.notice .dot{width:8px;height:8px;border-radius:50%;background:var(--amber);margin-top:9px;flex:0 0 auto;box-shadow:0 0 10px rgba(251,191,36,.7)}

/* FAQ */
.faq details{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:12px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details:hover{border-color:var(--border-strong)}
.faq details[open]{box-shadow:inset 2px 0 0 var(--cyan),inset 0 1px 0 rgba(255,255,255,.08)}
.faq summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:52px;
  padding:14px 20px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;
  border:1px solid rgba(34,211,238,.35);
  color:var(--cyan);
  transition:transform .2s ease,background .2s ease;
}
.faq details[open] .faq-icon{transform:rotate(45deg);background:rgba(34,211,238,.12)}
.faq .faq-body{padding:0 20px 18px;color:var(--muted);font-size:15px;max-width:44em}

/* CTA */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:28px;
  border-radius:18px;
  border:1px solid rgba(34,211,238,.28);
  background:linear-gradient(120deg,rgba(34,211,238,.12),rgba(139,92,246,.12));
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px)}
.cta-bar p{color:var(--muted);font-size:15px;margin-top:8px;max-width:46em}
.cta-actions{display:flex;gap:12px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;
  padding:64px 0 28px;
  background:#070B14;
  border-top:1px solid var(--border);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:#fff}
.footer-note{color:var(--muted);font-size:14px;max-width:34em}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list span{color:var(--muted);font-size:14px;transition:color .2s ease}
.footer-list a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  color:var(--muted-2);
  font-size:13px;
  letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:28px}
  .toc-card{position:static;padding:14px}
  .toc{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
  .toc li{flex:0 0 auto}
  .toc a{white-space:nowrap;border-left:none;border-bottom:2px solid transparent;padding:8px 12px}
  .toc a.active{border-left:none;border-bottom-color:var(--cyan)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-links a{padding:0 10px;font-size:14px}
  .logo span:last-child{font-size:15px}
}
@media (max-width:768px){
  .nav-links{
    display:none;
    position:absolute;
    left:0;right:0;
    top:calc(100% + 10px);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:10px;
    border-radius:18px;
    background:rgba(9,14,26,.97);
    border:1px solid var(--border);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow);
  }
  .nav-links.open{display:flex}
  .nav-links a{min-height:48px;padding:0 16px;border-radius:12px;font-size:15px}
  .menu-btn{display:inline-flex}
  .dock{gap:10px;padding:8px 10px}
  .dock-actions .btn-primary{display:none}
  .page-hero{padding:118px 0 42px}
  .section{padding:56px 0}
  .media-row{grid-template-columns:1fr;padding:18px}
  .media-row.reverse .media-figure{order:0}
  .grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:16px;padding:20px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:48px 0 24px;margin-top:56px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .logo span:last-child{font-size:14px;letter-spacing:0}
  .logo-mark{width:24px;height:24px}
  .search-row{flex-direction:column}
  .search-row .btn{width:100%}
  .page-hero h1{font-size:clamp(26px,7vw,34px)}
  .card{padding:20px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
  .card:hover,.btn:hover,.icon-btn:hover{transform:none}
}