/* roulang page: index */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1424;
  --bg-2:#101C30;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --primary:#12D3C8;
  --primary-deep:#0FB4AC;
  --primary-soft:rgba(18,211,200,.14);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --text:#E8EEF6;
  --text-2:#9FB0C4;
  --text-3:#5E6E82;
  --success:#3ED598;
  --warn:#FFC24B;
  --error:#FF5C5C;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-xl:26px;
  --r-pill:999px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 26px 60px -28px rgba(0,0,0,.9), 0 0 0 1px rgba(18,211,200,.35);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Consolas,"Liberation Mono",Menlo,monospace;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .22s ease}
a:hover{color:#5CE6DC}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
:focus:not(:focus-visible){outline:none}
::selection{background:rgba(18,211,200,.3);color:#fff}

::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#05090F}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#17E3D7,#0B8F89);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:#12D3C8}
*{scrollbar-color:#12D3C8 #05090F;scrollbar-width:thin}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}

.grid-x{display:flex;flex-wrap:wrap;align-items:stretch}
.grid-x.gm{margin-left:-12px;margin-right:-12px}
.grid-x.gm>.cell{padding-left:12px;padding-right:12px}
.grid-x>.cell{width:100%;min-width:0}
.cell{width:100%}
@media (min-width:640px){
  .cell.medium-4{width:33.3333%}
  .cell.medium-6{width:50%}
  .cell.medium-8{width:66.6667%}
  .cell.medium-12{width:100%}
}
@media (min-width:1024px){
  .cell.large-3{width:25%}
  .cell.large-4{width:33.3333%}
  .cell.large-5{width:41.6667%}
  .cell.large-7{width:58.3333%}
  .cell.large-8{width:66.6667%}
  .cell.large-9{width:75%}
  .cell.large-12{width:100%}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,11,20,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.is-scrolled{box-shadow:0 16px 36px -22px rgba(0,0,0,.95);background:rgba(6,11,20,.86)}
.nav-inner{display:flex;align-items:center;gap:22px;height:60px;transition:height .28s ease}
.site-header.is-scrolled .nav-inner{height:52px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:17px;line-height:1.2;flex-shrink:0}
.logo:hover{color:var(--text)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(18,211,200,.28),rgba(18,211,200,.05));
  border:1.5px solid rgba(18,211,200,.65);
  box-shadow:0 0 18px -6px rgba(18,211,200,.7);
}
.logo-mark svg{width:17px;height:17px;stroke:var(--primary);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.logo-text{white-space:nowrap}
.logo-text small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:0;line-height:1.3}

.nav-links{display:flex;align-items:center;gap:6px;margin:0 auto 0 8px}
.nav-links a{
  position:relative;display:inline-block;padding:6px 12px;border-radius:var(--r-sm);
  color:var(--text-2);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .22s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left center;
  transition:transform .28s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.is-active::after{transform:scaleX(1)}

.nav-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.hot-tags{display:flex;align-items:center;gap:8px}
.hot-tag{
  display:inline-block;padding:3px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(255,138,61,.45);color:var(--accent);
  font-size:12px;line-height:1.7;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.hot-tag:hover{background:var(--accent-soft);color:#FFB27A;border-color:rgba(255,138,61,.75)}

.search-wrap{display:flex;align-items:center;gap:8px}
.search-form{
  display:flex;align-items:center;overflow:hidden;
  width:0;opacity:0;pointer-events:none;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);
  transition:width .2s ease,opacity .2s ease,border-color .2s ease;
}
.search-form.is-open{width:200px;opacity:1;pointer-events:auto}
.search-form input{
  flex:1;min-width:0;background:transparent;border:0;outline:none;
  color:var(--text);font-size:14px;padding:8px 4px 8px 14px;
}
.search-form input::placeholder{color:var(--text-3)}
.search-form button{
  background:transparent;border:0;cursor:pointer;padding:6px 12px 6px 6px;
  color:var(--primary);display:flex;align-items:center;
}
.search-form button svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;
  transition:color .22s ease,border-color .22s ease,background .22s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(18,211,200,.5);background:var(--primary-soft)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mobile-toggle{display:none}

@media (max-width:1199px){
  .hot-tags{display:none}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .mobile-toggle{display:flex}
  .nav-inner{gap:12px;justify-content:space-between}
  .search-form.is-open{width:150px}
}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:90;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s ease;
  padding:20px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:85;background:rgba(3,6,12,.7);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);cursor:pointer}
.drawer-close:hover{color:var(--primary);border-color:rgba(18,211,200,.5)}
.drawer-close svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
.drawer-group-title{font-size:12px;color:var(--text-3);font-weight:600;margin-bottom:10px}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{display:block;padding:12px 14px;border-radius:var(--r-md);color:var(--text-2);font-size:15px;border:1px solid transparent}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--primary);background:var(--primary-soft);border-color:rgba(18,211,200,.28)}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px}
.drawer-search{display:flex;gap:8px}
.drawer-search input{
  flex:1;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 16px;color:var(--text);font-size:14px;outline:none;
}
.drawer-search input::placeholder{color:var(--text-3)}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18)}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ============ 通用按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.4;cursor:pointer;white-space:nowrap;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease,filter .25s ease;
}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.btn-primary{
  background:linear-gradient(180deg,#17E3D7,#0FB4AC);
  color:#03211F;
  box-shadow:0 0 0 1px rgba(18,211,200,.45),0 10px 30px -10px rgba(18,211,200,.55);
}
.btn-primary:hover{
  filter:brightness(1.08);transform:translateY(-2px);color:#03211F;
  box-shadow:0 0 0 1px rgba(18,211,200,.62),0 18px 44px -12px rgba(18,211,200,.72);
}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(18,211,200,.12);color:var(--primary);border-color:rgba(18,211,200,.5);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;white-space:nowrap;
}
.badge-primary{background:var(--primary-soft);color:var(--primary)}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.badge-muted{background:rgba(255,255,255,.06);color:var(--text-2)}

/* ============ 板块 ============ */
.section{padding:110px 0;position:relative}
.section.tight{padding:84px 0}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:48px}
.section-title{
  position:relative;
  font-size:34px;line-height:1.3;font-weight:800;padding-left:16px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,#17E3D7,#0B8F89);
}
.section-sub{color:var(--text-2);font-size:15px;margin-top:10px;padding-left:19px;max-width:660px}

.filter-tabs{display:flex;flex-wrap:wrap;gap:10px}
.tab{
  display:inline-block;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);font-size:13px;font-weight:500;
  transition:all .24s ease;
}
.tab:hover{color:var(--primary);border-color:rgba(18,211,200,.5);background:var(--primary-soft)}
.tab.is-active{background:var(--primary-soft);border-color:rgba(18,211,200,.55);color:var(--primary)}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:88px 0 76px;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(4,8,16,.93) 0%,rgba(5,10,20,.86) 45%,rgba(6,11,20,.72) 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(18,211,200,.4),transparent);
}
.hero-inner{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--primary-soft);border:1px solid rgba(18,211,200,.35);
  color:var(--primary);font-size:13px;font-weight:600;margin-bottom:22px;
}
.hero-kicker .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px 2px rgba(18,211,200,.8)}
.hero-title{
  font-size:52px;line-height:1.15;font-weight:800;letter-spacing:0;
  margin-bottom:20px;max-width:14em;
}
.hero-title em{font-style:normal;color:var(--primary);text-shadow:0 0 30px rgba(18,211,200,.35)}
.hero-sub{color:var(--text-2);font-size:17px;line-height:1.85;max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}

.hero-stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:26px}
.hero-stat{padding:0 30px;border-left:1px solid var(--line)}
.hero-stat:first-child{padding-left:0;border-left:0}
.hero-stat b{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:28px;font-weight:700;color:var(--primary);line-height:1.3;
}
.hero-stat span{font-size:13px;color:var(--text-3)}

.hero-card{
  background:var(--glass-strong);
  border:1px solid var(--line-strong);
  border-radius:var(--r-xl);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  padding:28px;
  position:relative;
}
.hero-card::after{
  content:"";position:absolute;right:-14px;bottom:-14px;width:120px;height:120px;
  border-radius:22px;background:rgba(18,211,200,.07);border:1px solid rgba(18,211,200,.2);
  z-index:-1;
}
.hero-card h2{font-size:18px;font-weight:700;margin-bottom:6px}
.hero-card .card-note{font-size:13px;color:var(--text-3);margin-bottom:20px}
.status-list{display:flex;flex-direction:column;gap:0}
.status-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line)}
.status-item:last-child{border-bottom:0;padding-bottom:0}
.status-item:first-child{padding-top:0}
.status-key{display:flex;align-items:center;gap:10px;color:var(--text-2);font-size:14px}
.status-key svg{width:18px;height:18px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.status-val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;color:var(--text);font-weight:600}
.status-val.ok{color:var(--success)}

@media (max-width:1023px){
  .hero{padding:64px 0 60px}
  .hero-title{font-size:40px;max-width:none}
  .hero-card{margin-top:40px}
  .hero-card::after{display:none}
}
@media (max-width:639px){
  .hero{padding:52px 0 52px}
  .hero-title{font-size:32px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stat{padding:0 16px}
  .hero-stat b{font-size:22px}
  .hero-stat span{font-size:12px}
}

/* ============ 玻璃卡 ============ */
.glass{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.card-hover{transition:transform .5s ease,box-shadow .5s ease,border-color .5s ease}
.card-hover:hover{transform:translateY(-4px);border-color:rgba(18,211,200,.4);box-shadow:var(--shadow-hover)}

/* ============ 痛点区 ============ */
.pain-left h2{font-size:32px;line-height:1.32;font-weight:800;margin-bottom:18px}
.pain-left p{color:var(--text-2);font-size:16px;margin-bottom:14px}
.pain-left .textlink{margin-top:8px;display:inline-flex;align-items:center;gap:6px;font-weight:600}
.pain-left .textlink svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .24s ease}
.pain-left .textlink:hover svg{transform:translateX(4px)}

.pain-stack{display:flex;flex-direction:column;gap:18px}
.pain-card{display:flex;gap:16px;padding:24px;align-items:flex-start}
.pain-card:nth-child(1){margin-right:36px}
.pain-card:nth-child(2){margin-left:30px}
.pain-card:nth-child(3){margin-right:20px}
.pain-ico{
  width:44px;height:44px;flex-shrink:0;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);border:1px solid rgba(18,211,200,.3);
}
.pain-ico svg{width:24px;height:24px;stroke:var(--primary);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.pain-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.pain-card p{font-size:14px;color:var(--text-2);line-height:1.75}

@media (max-width:1023px){
  .pain-card:nth-child(1),.pain-card:nth-child(2),.pain-card:nth-child(3){margin-left:0;margin-right:0}
  .pain-left{margin-bottom:36px}
}

/* ============ 解决方案图文 ============ */
.solution-row{align-items:center;margin-bottom:80px}
.solution-row:last-child{margin-bottom:0}
.solution-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.solution-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s ease}
.solution-media:hover img{transform:scale(1.04)}
.solution-media .media-tag{position:absolute;left:16px;top:16px}
.solution-body h2{font-size:30px;line-height:1.32;font-weight:800;margin-bottom:16px}
.solution-body>p{color:var(--text-2);font-size:16px;margin-bottom:22px}
.point-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.point-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.8}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(18,211,200,.14);
}
.point-list li strong{color:var(--text);font-weight:600}
.textlink{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px}
.textlink svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .24s ease}
.textlink:hover svg{transform:translateX(4px)}

@media (max-width:1023px){
  .solution-row{margin-bottom:60px}
  .solution-row .cell:first-child{margin-bottom:28px}
  .solution-body h2{font-size:25px}
}

/* ============ 数据带 ============ */
.metric-band{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric-grid{display:flex;flex-wrap:wrap}
.metric{
  flex:1 1 25%;min-width:0;padding:40px 28px;border-left:1px solid var(--line);
  transition:background .3s ease;
}
.metric:first-child{border-left:0}
.metric:hover{background:rgba(18,211,200,.04)}
.metric b{
  display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:40px;font-weight:700;color:var(--primary);line-height:1.15;
  text-shadow:0 0 26px rgba(18,211,200,.28);
}
.metric b span{font-size:18px;margin-left:4px;color:var(--text-2)}
.metric p{font-size:13px;color:var(--text-3);margin-top:8px;line-height:1.6}
@media (max-width:1023px){
  .metric{flex:1 1 50%;padding:30px 22px;border-top:1px solid var(--line)}
  .metric:nth-child(1),.metric:nth-child(2){border-top:0}
  .metric:nth-child(odd){border-left:0}
  .metric b{font-size:32px}
}
@media (max-width:639px){
  .metric b{font-size:28px}
}

/* ============ 证言 ============ */
.quote-track{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 24px;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;
}
.quote-track::-webkit-scrollbar{height:6px}
.quote-card{
  flex:0 0 min(380px,84vw);scroll-snap-align:start;
  padding:26px;display:flex;flex-direction:column;gap:16px;
}
.quote-text{font-size:15px;line-height:1.85;color:var(--text-2);position:relative;padding-top:6px}
.quote-text::before{
  content:"“";position:absolute;left:-4px;top:-14px;font-size:40px;color:rgba(18,211,200,.25);font-family:Georgia,serif;
}
.quote-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(18,211,200,.28),rgba(255,138,61,.18));
  border:1px solid rgba(18,211,200,.35);
  font-size:15px;font-weight:700;color:var(--text);
}
.quote-person b{display:block;font-size:14px;font-weight:600;color:var(--text)}
.quote-person span{font-size:12px;color:var(--text-3)}

/* ============ 资讯列表 ============ */
.news-grid{margin-bottom:36px}
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  transition:transform .5s ease,box-shadow .5s ease,border-color .5s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(18,211,200,.4);box-shadow:var(--shadow-hover)}
.news-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-thumb .badge{position:absolute;left:14px;top:14px}
.news-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-title{font-size:17px;font-weight:700;line-height:1.55}
.news-title a{color:var(--text);display:block}
.news-title a:hover{color:var(--primary)}
.news-excerpt{font-size:14px;color:var(--text-2);line-height:1.75}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line)}
.news-date{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--text-3)}
.news-more{font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.news-more svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

.empty-state{
  max-width:520px;margin:0 auto;padding:44px 30px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{width:46px;height:46px;stroke:var(--primary);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{color:var(--text-2);font-size:15px}
.empty-state a{font-weight:600}

.pager{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.pager a,.pager span{
  min-width:40px;height:40px;padding:0 14px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:all .24s ease;
}
.pager a:hover{color:var(--primary);border-color:rgba(18,211,200,.55)}
.pager .is-current{background:var(--primary);border-color:var(--primary);color:#03211F;font-weight:700;box-shadow:0 0 0 1px rgba(18,211,200,.5),0 0 22px -6px rgba(18,211,200,.75)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item+.faq-item{margin-top:12px}
.faq-item.is-open{border-color:rgba(18,211,200,.5);box-shadow:0 0 0 1px rgba(18,211,200,.16)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px;transition:transform .24s ease,opacity .24s ease}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-item.is-open .faq-a{max-height:460px}
.faq-a-inner{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-a-inner strong{color:var(--text);font-weight:600}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  border:1px solid var(--line-strong);
  background-image:linear-gradient(110deg,rgba(9,17,30,.94),rgba(9,17,30,.86)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
  padding:56px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:30px;
}
.cta-band h2{font-size:30px;font-weight:800;line-height:1.3;margin-bottom:10px}
.cta-band p{color:var(--text-2);font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:1023px){
  .cta-band{padding:40px 28px}
  .cta-band h2{font-size:24px}
}
@media (max-width:639px){
  .cta-band{padding:34px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0}
.footer-grid{display:flex;flex-wrap:wrap;margin:0 -16px}
.footer-col{padding:0 16px;margin-bottom:40px;width:100%}
@media (min-width:640px){.footer-col{width:50%}}
@media (min-width:1024px){
  .footer-col{width:25%}
  .footer-col.brand-col{width:30%}
  .footer-col.form-col{width:20%}
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{width:34px;height:34px}
.footer-brand b{font-size:17px;font-weight:800}
.footer-desc{color:var(--text-2);font-size:14px;line-height:1.8;margin-bottom:18px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  transition:all .24s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(18,211,200,.5);background:var(--primary-soft)}
.footer-social svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;gap:6px}
.footer-links a:hover{color:var(--primary)}
.footer-links a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--text-3);transition:background .24s ease}
.footer-links a:hover::before{background:var(--primary)}
.footer-form{display:flex;flex-direction:column;gap:10px}
.footer-form label{font-size:13px;color:var(--text-2)}
.footer-form input{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-md);padding:12px 16px;color:var(--text);font-size:14px;outline:none;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18)}
.footer-privacy{font-size:12px;color:var(--text-3);line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:16px}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out}
.reveal.is-visible{opacity:1;transform:none}

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

/* ============ 移动端统一收敛 ============ */
@media (max-width:639px){
  body{font-size:15px;line-height:1.8}
  .section{padding:64px 0}
  .section-head{margin-bottom:34px}
  .section-title{font-size:24px}
  .section-sub{font-size:14px;padding-left:19px}
  .glass,.news-card,.faq-item,.quote-card{border-radius:14px}
  .news-body{padding:18px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a-inner{padding:0 18px 18px;font-size:14px}
  .footer-col{padding:0 16px}
}

/* roulang page: article */
:root{
  --bg-0:#060B14; --bg-1:#0B1424; --bg-2:#101C30;
  --glass:rgba(255,255,255,.045); --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08); --line-strong:rgba(255,255,255,.14);
  --primary:#12D3C8; --primary-deep:#0FB4AC; --primary-soft:rgba(18,211,200,.14);
  --accent:#FF8A3D; --accent-soft:rgba(255,138,61,.14);
  --text:#E8EEF6; --text-2:#9FB0C4; --text-3:#5E6E82;
  --success:#3ED598; --warn:#FFC24B; --error:#FF5C5C;
  --r-8:8px; --r-12:12px; --r-18:18px; --r-26:26px; --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 26px 60px -28px rgba(0,0,0,.9),0 0 0 1px rgba(18,211,200,.35);
  --shadow-glow:0 0 0 1px rgba(18,211,200,.45),0 10px 30px -10px rgba(18,211,200,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-num:ui-monospace,Consolas,"SFMono-Regular",Menlo,monospace;
  --sec-pad:104px; --nav-h:60px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0; background:var(--bg-0); color:var(--text);
  font-family:var(--font-cn); font-size:16px; line-height:1.85;
  font-weight:400; letter-spacing:0; overflow-x:hidden;
}
body::before{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(18,211,200,.10), transparent 62%),
    radial-gradient(700px 460px at 6% 12%, rgba(255,138,61,.06), transparent 60%);
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary); outline-offset:2px; border-radius:6px;
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;color:var(--text);letter-spacing:0;}
p{margin:0 0 20px;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#080E1A;}
::-webkit-scrollbar-thumb{background:rgba(18,211,200,.45);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:var(--primary);}
::selection{background:rgba(18,211,200,.28);color:#fff;}

.container{width:100%;max-width:1272px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}
.sec-pad{padding:var(--sec-pad) 0;}
.sec-pad-sm{padding:72px 0;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 14px 34px -22px rgba(0,0,0,.95);background:rgba(6,11,20,.9);}
.nav-top{display:flex;align-items:center;gap:22px;min-height:var(--nav-h);transition:min-height .25s ease;}
.site-header.is-stuck .nav-top{min-height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.logo-mark{
  width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;background:linear-gradient(150deg,rgba(18,211,200,.22),rgba(18,211,200,.04));
  border:1px solid rgba(18,211,200,.36);box-shadow:0 0 22px -8px rgba(18,211,200,.75);
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-name{font-size:16.5px;font-weight:800;letter-spacing:.2px;line-height:1.2;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:26px;flex:1 1 auto;min-width:0;}
.nav-links a{
  position:relative;color:var(--text-2);font-size:14.5px;font-weight:500;
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.hot-pills{display:flex;align-items:center;gap:8px;}
.hot-pills a{
  display:inline-block;font-size:12px;line-height:1;padding:6px 11px;border-radius:var(--r-pill);
  color:var(--accent);border:1px solid rgba(255,138,61,.38);background:rgba(255,138,61,.07);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.hot-pills a:hover{background:var(--accent-soft);color:#FFB27A;transform:translateY(-1px);}
.search-toggle{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-12);border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-2);cursor:pointer;transition:all .2s ease;
}
.search-toggle:hover{color:var(--primary);border-color:rgba(18,211,200,.45);background:var(--primary-soft);}
.search-toggle svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.search-panel{
  max-height:0;overflow:hidden;transition:max-height .22s ease;
  border-top:1px solid transparent;
}
.search-panel.is-open{max-height:74px;border-top-color:var(--line);}
.search-panel form{display:flex;gap:10px;padding:14px 0;align-items:center;}
.search-panel input{
  flex:1 1 auto;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-12);padding:12px 16px;color:var(--text);
}
.search-panel input::placeholder{color:var(--text-3);}
.search-panel input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.nav-burger{
  display:none;width:44px;height:44px;border-radius:var(--r-12);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-burger svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.68);backdrop-filter:blur(3px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:80;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  padding:18px 20px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-12);border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;
}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.drawer-title{font-size:15px;font-weight:700;color:var(--text);}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin:16px 0 18px;}
.drawer-links a{
  color:var(--text-2);font-size:15px;padding:12px 12px;border-radius:var(--r-12);
  border:1px solid transparent;transition:all .2s ease;
}
.drawer-links a:hover,.drawer-links a.is-active{background:var(--primary-soft);border-color:rgba(18,211,200,.3);color:var(--primary);}
.drawer-sub{font-size:13px;color:var(--text-3);margin:0 0 10px;}
.drawer-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;text-align:center;transition:all .24s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(160deg,#1BE6D9,#0FB4AC);color:#04211F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{color:#04211F;filter:brightness(1.08);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(18,211,200,.6),0 16px 38px -12px rgba(18,211,200,.7);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  background:rgba(255,255,255,.03);border-color:var(--line-strong);color:var(--text);
}
.btn-ghost:hover{background:rgba(18,211,200,.12);border-color:rgba(18,211,200,.5);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:5px 11px;border-radius:var(--r-pill);
  font-weight:600;letter-spacing:.2px;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);border:1px solid rgba(18,211,200,.28);}
.badge-accent{background:var(--accent-soft);color:var(--accent);border:1px solid rgba(255,138,61,.3);}
.badge-muted{background:rgba(255,255,255,.05);color:var(--text-2);border:1px solid var(--line);}

/* ============ 通用板块头部 ============ */
.sec-head{margin-bottom:36px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  color:var(--primary);letter-spacing:1.4px;text-transform:uppercase;margin-bottom:14px;
}
.sec-eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}
.sec-title{font-size:32px;line-height:1.3;font-weight:800;}
.sec-title .bar{
  display:inline-block;width:3px;height:.92em;border-radius:3px;background:var(--primary);
  margin-right:12px;vertical-align:-.08em;
}
.sec-desc{color:var(--text-2);font-size:15.5px;margin:12px 0 0;max-width:760px;}

/* ============ 面包屑 ============ */
.crumb-wrap{padding:22px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-12);
  padding:10px 16px;font-size:13px;color:var(--text-2);
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:var(--text-3);opacity:.7;}
.crumb .now{color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(560px,60vw);}

/* ============ 文章头部 ============ */
.article-hero{padding:26px 0 0;}
.article-head{max-width:900px;}
.article-head .badge{margin-bottom:16px;}
.article-title{
  font-size:38px;line-height:1.32;font-weight:800;letter-spacing:.2px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:18px;font-size:13.5px;color:var(--text-3);
}
.article-meta .num{color:var(--text-2);}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3);display:inline-block;opacity:.8;}
.cover-figure{
  margin:26px 0 0;border-radius:var(--r-18);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  box-shadow:var(--shadow-card);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.cover-figure:hover img{transform:scale(1.04);}

/* ============ 正文布局 ============ */
.article-main{padding:56px 0 96px;}
.toc-mobile{
  display:none;margin-bottom:22px;border:1px solid var(--line);border-radius:var(--r-18);
  background:var(--glass);overflow:hidden;
}
.toc-mobile summary{
  list-style:none;cursor:pointer;padding:15px 20px;font-size:15px;font-weight:600;color:var(--text);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"＋";color:var(--primary);font-weight:700;}
.toc-mobile[open] summary::after{content:"－";}
.toc-mobile .toc-list{padding:0 12px 14px;}

.article-body{
  max-width:800px;font-size:17px;line-height:1.9;color:var(--text);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;color:#D8E2EE;}
.article-body h2{
  font-size:25px;line-height:1.42;margin:38px 0 16px;padding-left:12px;
  border-left:3px solid var(--primary);color:var(--text);
}
.article-body h3{font-size:20px;line-height:1.45;margin:30px 0 12px;color:var(--text);}
.article-body h4{font-size:17.5px;margin:24px 0 10px;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:4px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;color:#D8E2EE;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(18,211,200,.7);
}
.article-body ol{counter-reset:olin;}
.article-body ol li{
  position:relative;padding-left:30px;margin-bottom:10px;counter-increment:olin;color:#D8E2EE;
}
.article-body ol li::before{
  content:counter(olin);position:absolute;left:0;top:.32em;
  font-family:var(--font-num);font-size:14px;color:var(--primary);
  border:1px solid rgba(18,211,200,.35);background:var(--primary-soft);
  border-radius:6px;padding:0 6px;line-height:1.5;
}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;border-left:3px solid var(--accent);
  background:var(--glass);border-radius:0 var(--r-12) var(--r-12) 0;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-18);border:1px solid var(--line);margin:26px 0 10px;width:100%;}
.article-body figcaption{
  text-align:center;font-size:12.5px;color:var(--text-3);margin:-4px 0 24px;
}
.article-body .table-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;margin:24px 0;
  border:1px solid var(--line);border-radius:var(--r-12);background:var(--glass);
}
.article-body table{min-width:520px;font-size:14.5px;}
.article-body thead th{
  background:rgba(255,255,255,.05);color:var(--text);font-weight:700;
  text-align:left;padding:13px 16px;border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.article-body tbody td{
  padding:13px 16px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top;
}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body strong{color:#fff;font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0;}

/* ============ 侧栏目录 ============ */
.toc-aside{position:sticky;top:88px;}
.toc-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-18);
  padding:22px;box-shadow:var(--shadow-card);backdrop-filter:blur(12px);
}
.toc-card h2{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--text);letter-spacing:.2px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto;}
.toc-list a{
  position:relative;display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);
  padding:8px 10px 8px 14px;border-radius:var(--r-8);border-left:1px solid transparent;
  transition:all .2s ease;
}
.toc-list a::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:transparent;
  transition:background .2s ease;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.toc-list a.is-active{color:var(--primary);background:var(--primary-soft);}
.toc-list a.is-active::before{background:var(--primary);}
.toc-list a.lv3{padding-left:26px;font-size:13px;color:var(--text-3);}
.aside-card{
  margin-top:20px;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-18);
  padding:22px;backdrop-filter:blur(12px);transition:all .3s ease;
}
.aside-card:hover{border-color:rgba(18,211,200,.4);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.aside-card h2{font-size:15px;font-weight:700;margin-bottom:14px;}
.aside-links{display:flex;flex-direction:column;gap:10px;}
.aside-links a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.6;}
.aside-links a:hover{color:var(--primary);}
.aside-links a i{
  flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--primary);
  margin-top:.6em;opacity:.85;
}
.aside-note{font-size:13.5px;color:var(--text-2);margin:0 0 16px;line-height:1.8;}

/* ============ 空态 ============ */
.empty-state{
  max-width:520px;margin:0 auto;text-align:center;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-18);
  padding:40px 28px;box-shadow:var(--shadow-card);
}
.empty-state svg{width:38px;height:38px;fill:none;stroke:var(--primary);stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;margin:0 auto 16px;display:block;}
.empty-state p{color:var(--text-2);font-size:15px;margin:0 0 16px;}

/* ============ 底部导航块 ============ */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:52px;}
.post-nav a{
  display:block;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-18);
  padding:20px 22px;transition:all .3s ease;min-width:0;
}
.post-nav a:hover{border-color:rgba(18,211,200,.4);transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.post-nav .pn-label{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:8px;letter-spacing:.4px;}
.post-nav .pn-title{
  display:block;font-size:16px;font-weight:600;color:var(--text);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.post-nav a:hover .pn-title{color:var(--primary);}
.post-nav .pn-next{text-align:right;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--primary);
  margin-top:34px;
}
.back-link:hover{text-decoration:underline;text-underline-offset:3px;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 96px;}
.related .sec-head{margin-bottom:26px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-18);
  box-shadow:var(--shadow-card);transition:transform .5s ease,border-color .3s ease,box-shadow .3s ease;
  backdrop-filter:blur(12px);
}
.card:hover{transform:translateY(-4px);border-color:rgba(18,211,200,.4);box-shadow:var(--shadow-hover);}
.card-media{position:relative;overflow:hidden;background:var(--bg-2);aspect-ratio:16/9;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-media .badge{position:absolute;left:14px;top:14px;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-title{
  font-size:17.5px;line-height:1.5;font-weight:700;color:var(--text);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card:hover .card-title{color:var(--primary);}
.card-excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);padding-top:14px;border-top:1px solid var(--line);
}
.card-foot .more{color:var(--primary);font-weight:600;font-size:13.5px;}

/* ============ 评论占位 ============ */
.comment-box{
  margin-top:52px;background:var(--glass);border:1px solid var(--line);
  border-radius:var(--r-18);padding:26px;box-shadow:var(--shadow-card);
}
.comment-box h2{font-size:18px;font-weight:700;margin-bottom:10px;}
.comment-box p{font-size:14px;color:var(--text-2);margin:0 0 16px;}
.comment-box textarea{
  width:100%;min-height:104px;resize:vertical;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-12);
  padding:13px 16px;color:var(--text);font-size:14.5px;line-height:1.7;
}
.comment-box textarea::placeholder{color:var(--text-3);}
.comment-box textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.comment-actions{display:flex;justify-content:flex-end;margin-top:14px;}

/* ============ CTA ============ */
.cta-band{padding:0 0 110px;}
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-26);
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(18,211,200,.12),rgba(255,255,255,.03) 46%,rgba(255,138,61,.08));
  box-shadow:var(--shadow-card);
  padding:52px 48px;
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14;mix-blend-mode:luminosity;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-inner h2{font-size:29px;line-height:1.35;margin-bottom:10px;}
.cta-inner p{color:var(--text-2);font-size:15.5px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 0;position:relative;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:16px;font-weight:800;color:var(--text);}
.footer-desc{font-size:14px;line-height:1.8;color:var(--text-2);margin:0 0 18px;max-width:340px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-12);border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-2);transition:all .24s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(18,211,200,.45);background:var(--primary-soft);transform:translateY(-2px);}
.footer-social svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin:0 0 16px;letter-spacing:.3px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:9px;}
.footer-form input{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-12);padding:12px 16px;color:var(--text);margin-bottom:12px;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.footer-privacy{font-size:12.5px;color:var(--text-3);margin:10px 0 0;line-height:1.7;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:16px;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--sec-pad:88px;}
  .hot-pills{display:none;}
}
@media (max-width:1023px){
  :root{--sec-pad:80px;}
  .nav-links{display:none;}
  .nav-burger{display:inline-flex;}
  .article-title{font-size:32px;}
  .toc-aside{display:none;}
  .toc-mobile{display:block;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-card{padding:42px 34px;}
}
@media (max-width:767px){
  :root{--sec-pad:64px;--r-18:14px;--r-26:20px;}
  .container{padding:0 20px;}
  .article-title{font-size:27px;line-height:1.4;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .sec-title{font-size:24px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-form .btn{width:100%;}
  .card-grid{grid-template-columns:1fr;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-name{font-size:15px;}
  .crumb .now{max-width:70vw;}
  .related{padding-bottom:64px;}
  .cta-band{padding-bottom:72px;}
}
@media (max-width:520px){
  .article-title{font-size:24px;}
  .cta-card{padding:32px 22px;}
  .search-panel form{flex-wrap:wrap;}
  .search-panel form .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B14;--bg-1:#0B1424;--bg-2:#101C30;
  --glass:rgba(255,255,255,.045);--glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.14);
  --primary:#12D3C8;--primary-deep:#0FB4AC;--primary-soft:rgba(18,211,200,.14);
  --accent:#FF8A3D;
  --text:#E8EEF6;--text-2:#9FB0C4;--text-3:#5E6E82;
  --success:#3ED598;--warn:#FFC24B;--error:#FF5C5C;
  --r-sm:8px;--r-md:12px;--r-lg:18px;--r-xl:26px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06),0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 26px 60px -28px rgba(0,0,0,.9),0 0 0 1px rgba(18,211,200,.35);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,Consolas,"SFMono-Regular",Menlo,monospace;
  --sec-pad:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;background:var(--bg-0);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .25s ease,border-color .25s ease;}
a:hover{color:var(--text);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
::selection{background:rgba(18,211,200,.28);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#0A1220;}
::-webkit-scrollbar-thumb{background:rgba(18,211,200,.45);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:var(--primary);}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;font-family:var(--mono);}
.section{padding:var(--sec-pad) 0;position:relative;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{margin-bottom:44px;max-width:760px;}
.sec-head h2{font-size:34px;line-height:1.3;font-weight:800;letter-spacing:0;}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.h2-bar{position:relative;padding-left:16px;}
.h2-bar::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  background:var(--primary);border-radius:2px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--primary);
  letter-spacing:.04em;text-transform:uppercase;font-weight:600;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  transition:transform .25s ease,box-shadow .3s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;border:1px solid transparent;
}
.btn-primary{
  background:linear-gradient(180deg,#18E0D4,#0FB4AC);color:#052A2A;
  box-shadow:0 0 0 1px rgba(18,211,200,.45),0 10px 30px -10px rgba(18,211,200,.55);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04211F;
  box-shadow:0 0 0 1px rgba(18,211,200,.55),0 18px 44px -12px rgba(18,211,200,.7);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  background:rgba(255,255,255,.02);border-color:var(--line-strong);color:var(--text);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(18,211,200,.12);border-color:rgba(18,211,200,.5);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.link-arrow::after{content:"→";transition:transform .25s ease;}
.link-arrow:hover::after{transform:translateX(4px);}
.link-arrow:hover{color:var(--text);text-decoration:underline;text-underline-offset:4px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -22px rgba(0,0,0,.95);}
.header-top-inner{
  display:flex;align-items:center;gap:26px;height:60px;
  transition:height .3s ease;
}
.site-header.is-scrolled .header-top-inner{height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(18,211,200,.22),rgba(255,138,61,.14));
  border:1px solid rgba(18,211,200,.4);
  box-shadow:0 0 18px -6px rgba(18,211,200,.55);
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;}
.brand-text:hover{color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:8px;}
.nav-links a{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .28s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-input{
  width:0;opacity:0;padding:0;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.04);color:var(--text);font-size:14px;height:38px;
  transition:width .22s ease,opacity .22s ease,padding .22s ease;
}
.search-wrap.is-open .search-input{width:230px;opacity:1;padding:0 16px;}
.search-input::placeholder{color:var(--text-3);}
.search-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);
  transition:color .25s,border-color .25s,background-color .25s;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(18,211,200,.45);background:rgba(18,211,200,.1);}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.header-sub{border-top:1px solid var(--line);background:rgba(11,20,36,.5);}
.header-sub-inner{display:flex;align-items:center;gap:14px;height:44px;overflow-x:auto;scrollbar-width:none;}
.header-sub-inner::-webkit-scrollbar{display:none;}
.hot-label{font-size:12px;color:var(--text-3);flex:0 0 auto;letter-spacing:.06em;}
.hot-tags{display:flex;gap:10px;flex:0 0 auto;}
.tag-pill{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;font-size:12px;
  border:1px solid rgba(255,138,61,.45);color:var(--accent);background:rgba(255,138,61,.1);
  white-space:nowrap;transition:background-color .25s,border-color .25s,color .25s;
}
.tag-pill:hover{background:rgba(255,138,61,.2);border-color:var(--accent);color:#FFD3B4;}
.header-sub-links{margin-left:auto;display:flex;gap:18px;flex:0 0 auto;}
.header-sub-links a{font-size:13px;color:var(--text-2);}
.header-sub-links a:hover{color:var(--primary);}
.nav-toggle{display:none;}

/* Drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,7,14,.72);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:80;
  background:var(--bg-1);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .32s cubic-bezier(.22,.7,.3,1);
  padding:22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-title{font-size:15px;font-weight:700;color:var(--text);}
.drawer-close{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);}
.drawer-close:hover{color:var(--primary);border-color:rgba(18,211,200,.45);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--line);padding-top:14px;}
.drawer-nav a{padding:13px 4px;color:var(--text-2);font-size:15px;border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--primary);font-weight:600;}
.drawer-nav a:hover{color:var(--text);padding-left:8px;}
.drawer-block{margin-top:22px;}
.drawer-block p{font-size:13px;color:var(--text-3);margin-bottom:10px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.drawer-search{display:flex;gap:8px;margin-top:8px;}
.drawer-search input{
  flex:1;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;color:var(--text);font-size:14px;
}
.drawer-search input::placeholder{color:var(--text-3);}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.drawer .btn{margin-top:20px;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;min-height:45vh;display:flex;align-items:center;
  padding:88px 0 76px;overflow:hidden;
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.72) 0%,rgba(6,11,20,.78) 55%,rgba(6,11,20,.9) 100%);
}
.cat-hero__grid{
  position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:100% 38px;pointer-events:none;
}
.cat-hero__inner{position:relative;z-index:2;text-align:center;max-width:880px;margin:0 auto;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;
  font-size:13px;color:var(--text-2);margin-bottom:20px;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.crumb span.sep{color:var(--text-3);}
.crumb span.cur{color:var(--text-2);}
.cat-hero h1{
  font-size:clamp(30px,5vw,50px);line-height:1.16;font-weight:800;letter-spacing:-.01em;
}
.cat-hero h1 em{font-style:normal;color:var(--primary);}
.cat-hero__sub{
  margin:20px auto 0;max-width:700px;color:var(--text-2);font-size:17px;line-height:1.85;
}
.cat-hero__meta{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:var(--glass);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.chip b{color:var(--primary);font-weight:600;}
.chip--accent{border-color:rgba(255,138,61,.4);color:#FFC49A;background:rgba(255,138,61,.1);}

/* ---------- Anchor bar ---------- */
.anchor-bar{
  position:sticky;top:104px;z-index:40;
  background:rgba(11,20,36,.86);border-bottom:1px solid var(--line);
  backdrop-filter:blur(12px);
}
.anchor-inner{display:flex;gap:10px;align-items:center;height:58px;overflow-x:auto;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:13.5px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:all .25s ease;
}
.anchor-inner a:hover{color:var(--primary);border-color:rgba(18,211,200,.5);background:rgba(18,211,200,.1);}

/* ---------- Blocks ---------- */
.block-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-2);box-shadow:var(--shadow-card);position:relative;
}
.block-figure::before{
  content:"";display:block;padding-top:56.25%;
}
.block-figure img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.block-figure:hover img{transform:scale(1.04);}
.block-figure .fig-tag{
  position:absolute;left:14px;top:14px;z-index:2;
}
.img-placeholder{
  background:var(--bg-2) linear-gradient(135deg,rgba(18,211,200,.08),rgba(255,138,61,.05));
  border:1px solid rgba(18,211,200,.25);
}
.content-block{padding:46px 0;}
.content-block:first-child{padding-top:0;}
.content-block h2{
  font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:800;margin-bottom:18px;
}
.content-block p{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:18px;}
.content-block p strong{color:var(--text);font-weight:600;}
.point-list{margin:22px 0 20px;display:flex;flex-direction:column;gap:12px;}
.point-list li{
  position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 0 4px rgba(18,211,200,.14);
}
.point-list li b{color:var(--text);font-weight:600;}
.badge{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.5;
}
.badge-primary{background:rgba(18,211,200,.12);color:var(--primary);}
.badge-accent{background:rgba(255,138,61,.12);color:var(--accent);}
.badge-muted{background:rgba(255,255,255,.06);color:var(--text-2);}

/* checklist */
.check-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:34px;backdrop-filter:blur(12px);box-shadow:var(--shadow-card);
}
.check-panel h3{font-size:20px;font-weight:700;margin-bottom:8px;}
.check-panel > p{color:var(--text-2);font-size:15px;margin-bottom:24px;}
.check-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 30px;}
.check-item{
  display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  transition:border-color .25s ease,transform .4s ease;
}
.check-item:hover{border-color:rgba(18,211,200,.4);transform:translateY(-3px);}
.check-item svg{width:20px;height:20px;flex:0 0 auto;margin-top:3px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.check-item span{font-size:14.5px;color:var(--text-2);line-height:1.75;}
.check-item span b{color:var(--text);font-weight:600;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  backdrop-filter:blur(12px);overflow:hidden;transition:border-color .25s ease,background-color .25s ease;
}
.faq-item.is-open{border-color:rgba(18,211,200,.45);background:var(--glass-strong);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-q .idx{font-family:var(--mono);font-size:13px;color:var(--text-3);flex:0 0 auto;}
.faq-icon{
  margin-left:auto;flex:0 0 auto;width:24px;height:24px;position:relative;
  transition:transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:13px;height:2px;}
.faq-icon::after{width:2px;height:13px;transition:transform .24s ease;}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg) scaleY(0);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .24s ease;
}
.faq-a__inner{
  padding:0 24px 22px 62px;color:var(--text-2);font-size:15px;line-height:1.85;
}
.faq-a__inner p{margin-bottom:12px;}
.faq-a__inner p:last-child{margin-bottom:0;}
.faq-a__inner b{color:var(--text);font-weight:600;}

/* CTA */
.cta-band{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow-card);
  padding:52px 44px;text-align:center;background:var(--bg-1);
}
.cta-band__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.24;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(60% 120% at 50% 0%,rgba(18,211,200,.16),transparent 65%);
  pointer-events:none;
}
.cta-band__inner{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.35;}
.cta-band p{color:var(--text-2);font-size:16px;margin:16px auto 30px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* Footer */
.site-footer{
  background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:38px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:16px;font-weight:800;}
.footer-desc{color:var(--text-2);font-size:14px;line-height:1.8;max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);transition:all .25s ease;
}
.footer-social a:hover{color:var(--primary);border-color:rgba(18,211,200,.45);background:rgba(18,211,200,.1);}
.footer-social svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:4px;}
.footer-form label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;}
.footer-form input{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-md);
  padding:12px 16px;color:var(--text);font-size:14px;margin-bottom:12px;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.footer-privacy{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.7;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;}

/* fade up */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out;}
.fade-up.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  :root{--sec-pad:80px;}
  .nav-links{display:none;}
  .header-sub-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .anchor-bar{top:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cat-hero{min-height:auto;padding:64px 0 56px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  :root{--sec-pad:64px;}
  .cat-hero h1{font-size:32px;}
  .cat-hero__sub{font-size:15.5px;}
  .sec-head h2{font-size:26px;}
  .content-block h2{font-size:22px;}
  .content-block{padding:34px 0;}
  .check-panel{padding:24px;border-radius:var(--r-lg);}
  .check-cols{grid-template-columns:1fr;}
  .cta-band{padding:38px 22px;border-radius:var(--r-lg);}
  .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-q{padding:17px 18px;font-size:15px;gap:12px;}
  .faq-a__inner{padding:0 18px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .block-figure{border-radius:14px;}
  .search-wrap.is-open .search-input{width:150px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;max-width:150px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .search-wrap.is-open .search-input{width:120px;}
  .cat-hero h1{font-size:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
  .fade-up{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1424;
  --bg-2:#101C30;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --primary:#12D3C8;
  --primary-deep:#0FB4AC;
  --primary-soft:rgba(18,211,200,.14);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --text:#E8EEF6;
  --text-2:#9FB0C4;
  --text-3:#5E6E82;
  --success:#3ED598;
  --radius-s:8px;
  --radius-m:12px;
  --radius-l:18px;
  --radius-xl:26px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 26px 60px -28px rgba(0,0,0,.9), 0 0 0 1px rgba(18,211,200,.35);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(18,211,200,.10), transparent 60%),
    radial-gradient(800px 460px at 92% 4%, rgba(255,138,61,.07), transparent 62%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease, border-color .2s ease;}
a:hover{color:var(--text);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;color:var(--text);}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(18,211,200,.28);color:#fff;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#080e18;}
::-webkit-scrollbar-thumb{background:var(--primary);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:var(--primary-deep);}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.2px;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(180deg,#19E0D4,#0FB4AC);
  color:#04211F;
  box-shadow:0 0 0 1px rgba(18,211,200,.45), 0 10px 30px -10px rgba(18,211,200,.55);
}
.btn-primary:hover{color:#04211F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(18,211,200,.6), 0 16px 40px -12px rgba(18,211,200,.7);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{background:rgba(18,211,200,.12);border-color:rgba(18,211,200,.45);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 标签 / 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12px;line-height:1.6;font-weight:600;}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-plain{background:rgba(255,255,255,.05);color:var(--text-2);}
.tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;font-size:13px;border:1px solid var(--line-strong);color:var(--text-2);white-space:nowrap;transition:all .2s ease;}
.tag:hover{border-color:rgba(18,211,200,.5);color:var(--primary);background:rgba(18,211,200,.08);}
.tag-hot{border-color:rgba(255,138,61,.4);color:var(--accent);}
.tag-hot:hover{border-color:var(--accent);color:#fff;background:var(--accent-soft);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -22px rgba(0,0,0,.95);background:rgba(6,11,20,.86);}
.header-inner{display:flex;align-items:center;gap:22px;height:60px;transition:height .25s ease;}
.site-header.is-scrolled .header-inner{height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(18,211,200,.22),rgba(255,138,61,.14));
  border:1px solid rgba(18,211,200,.38);
  box-shadow:0 0 18px -6px rgba(18,211,200,.6);
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.2px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:14.5px;color:var(--text-2);padding:6px 0;font-weight:500;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;border-radius:11px;background:var(--glass);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{border-color:rgba(18,211,200,.45);background:rgba(18,211,200,.1);transform:translateY(-1px);}
.search-wrap{position:relative;}
.search-box{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  display:flex;align-items:center;gap:6px;
  width:0;opacity:0;pointer-events:none;overflow:hidden;
  transition:width .22s ease,opacity .22s ease;
  background:var(--bg-2);border:1px solid var(--line-strong);border-radius:999px;padding:4px;
}
.search-box.is-open{width:290px;opacity:1;pointer-events:auto;}
.search-box input{
  flex:1;background:transparent;border:0;color:var(--text);font-size:14px;padding:8px 10px;outline:none;
}
.search-box input::placeholder{color:var(--text-3);}
.search-submit{
  width:32px;height:32px;border-radius:50%;border:0;background:var(--primary-soft);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.search-submit svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:2;stroke-linecap:round;}
.hamburger{display:none;}
.header-sub{border-top:1px solid var(--line);}
.sub-inner{display:flex;align-items:center;gap:18px;height:44px;}
.hot-tags{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;}
.hot-tags::-webkit-scrollbar{display:none;}
.sub-meta{margin-left:auto;font-size:13px;color:var(--text-3);white-space:nowrap;}

/* ---------- 移动抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.is-open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,13,.7);backdrop-filter:blur(3px);}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);
  background:var(--bg-1);border-left:1px solid var(--line-strong);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  animation:drawerIn .24s ease-out;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px;}
.drawer-close{width:44px;height:44px;font-size:22px;color:var(--text);background:var(--glass);border:1px solid var(--line);border-radius:12px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{padding:13px 4px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--primary);font-weight:700;}
.drawer-search{display:flex;gap:8px;}
.drawer-search input{
  flex:1;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;color:var(--text);font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.drawer-search button{border:0;border-radius:12px;padding:0 16px;background:linear-gradient(180deg,#19E0D4,#0FB4AC);color:#04211F;font-weight:700;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{
  display:inline-flex;flex-wrap:wrap;align-items:center;gap:8px;
  background:var(--glass);border:1px solid var(--line);border-radius:999px;
  padding:7px 16px;font-size:13px;color:var(--text-3);
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);text-decoration:underline;}
.crumb .sep{color:var(--text-3);}
.crumb .current{color:var(--text-2);}

/* ---------- 标题带 ---------- */
.title-band{
  position:relative;margin-top:20px;border-radius:var(--radius-xl);overflow:hidden;
  border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(6,11,20,.92),rgba(6,11,20,.78)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-card);
}
.title-band-inner{display:flex;flex-wrap:wrap;gap:32px;align-items:flex-start;padding:44px 40px;}
.title-band h1{font-size:40px;line-height:1.22;max-width:640px;letter-spacing:.2px;}
.title-band h1 em{font-style:normal;color:var(--primary);}
.title-lead{max-width:600px;color:var(--text-2);font-size:16px;margin:18px 0 0;}
.title-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.title-facts{
  flex:1 1 300px;min-width:280px;background:var(--glass-strong);border:1px solid var(--line);
  border-radius:var(--radius-l);padding:22px;backdrop-filter:blur(12px);
}
.title-facts h2{font-size:16px;display:flex;align-items:center;gap:8px;}
.title-facts h2::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--accent);}
.fact-list{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.fact-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);align-items:flex-start;}
.fact-list li span.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:9px;flex:0 0 auto;}

/* ---------- 步骤锚点条 ---------- */
.step-strip{
  position:sticky;top:60px;z-index:40;margin-top:22px;
  background:rgba(6,11,20,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;padding:8px;
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
}
.step-strip::-webkit-scrollbar{display:none;}
.step-strip a{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:13.5px;color:var(--text-2);
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.step-strip a:hover{color:var(--primary);border-color:rgba(18,211,200,.4);background:rgba(18,211,200,.08);}
.step-strip a .num{color:var(--text-3);margin-right:6px;}
.step-strip a:hover .num{color:var(--primary);}

/* ---------- 板块 ---------- */
.section{padding:88px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:16px;margin-bottom:36px;}
.section-head h2{font-size:32px;line-height:1.3;position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;background:var(--primary);}
.section-head p{margin:0;color:var(--text-2);font-size:15px;max-width:620px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:0;}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:44px;width:2px;
  background:linear-gradient(180deg,rgba(255,138,61,.55),rgba(18,211,200,.25) 55%,rgba(255,255,255,.06));
}
.tl-item{position:relative;padding:0 0 30px 62px;}
.tl-node{
  position:absolute;left:8px;top:6px;width:24px;height:24px;border-radius:50%;
  border:2px solid var(--accent);background:var(--bg-0);display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 5px rgba(255,138,61,.09);
}
.tl-node::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);}
.tl-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:26px;box-shadow:var(--shadow-card);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;
  transition:transform .5s ease,border-color .3s ease,box-shadow .3s ease;
}
.tl-card:hover{transform:translateY(-4px);border-color:rgba(18,211,200,.4);box-shadow:var(--shadow-hover);}
.tl-body{flex:1 1 380px;min-width:280px;}
.tl-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;letter-spacing:2px;color:var(--accent);}
.tl-card h3{font-size:21px;margin:8px 0 12px;}
.tl-card p{color:var(--text-2);font-size:15px;margin:0 0 12px;}
.tl-card p:last-of-type{margin-bottom:0;}
.tl-points{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.tl-points li{display:flex;gap:9px;font-size:14px;color:var(--text-2);}
.tl-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);margin-top:9px;flex:0 0 auto;}
.tl-media{flex:1 1 260px;min-width:240px;border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);position:relative;}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s ease;}
.tl-media:hover img{transform:scale(1.04);}
.tl-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(6,11,20,.55));pointer-events:none;}

/* ---------- 版本记录 ---------- */
.record-panel{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:8px 26px;box-shadow:var(--shadow-card);
}
.record-row{
  display:flex;flex-wrap:wrap;gap:12px 26px;align-items:baseline;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.record-row:last-child{border-bottom:0;}
.record-ver{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--primary);font-size:15px;font-weight:700;min-width:76px;}
.record-date{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--text-3);font-size:13.5px;min-width:130px;}
.record-desc{flex:1 1 300px;color:var(--text-2);font-size:14.5px;}

/* ---------- 数据条 ---------- */
.data-strip{
  margin-top:88px;background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:46px 0;
}
.data-strip .container{display:flex;flex-wrap:wrap;gap:28px;}
.data-item{flex:1 1 200px;min-width:160px;padding-right:20px;border-right:1px solid var(--line);}
.data-item:last-child{border-right:0;padding-right:0;}
.data-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;color:var(--primary);line-height:1.1;display:block;}
.data-num small{font-size:15px;margin-left:4px;color:var(--primary);font-weight:600;}
.data-label{margin-top:8px;font-size:13.5px;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  margin:88px 0 0;border-radius:var(--radius-xl);border:1px solid var(--line);
  background-image:linear-gradient(120deg,rgba(6,11,20,.9),rgba(11,20,36,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:52px 40px;box-shadow:var(--shadow-card);
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:29px;max-width:520px;}
.cta-band p{color:var(--text-2);margin:12px 0 0;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 0;}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px;}
.footer-col{flex:1 1 200px;min-width:200px;}
.footer-col.brand-col{flex:1 1 300px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:17px;font-weight:800;}
.footer-desc{color:var(--text-2);font-size:14px;max-width:320px;margin:0;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:var(--glass);
  display:inline-flex;align-items:center;justify-content:center;transition:all .2s ease;
}
.footer-social svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.footer-social a:hover{border-color:rgba(18,211,200,.45);transform:translateY(-2px);}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.form-col{flex:1 1 280px;}
.footer-form{display:flex;flex-direction:column;gap:10px;}
.footer-form label{font-size:13px;color:var(--text-2);}
.footer-form input{
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;color:var(--text);font-size:14px;outline:none;transition:all .2s ease;
}
.footer-form input::placeholder{color:var(--text-3);}
.footer-form input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}
.footer-privacy{font-size:12.5px;color:var(--text-3);margin:2px 0 0;line-height:1.7;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-3);
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 进入动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s ease-out,transform .4s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1200px){
  .title-band h1{font-size:36px;}
}
@media screen and (max-width:1024px){
  .nav-links{display:none;}
  .hamburger{display:inline-flex;}
  .container{padding:0 22px;}
  .title-band h1{font-size:33px;}
  .section{padding:76px 0 0;}
  .data-item{flex:1 1 45%;border-right:0;}
}
@media screen and (max-width:768px){
  .header-sub{display:none;}
  .step-strip{top:56px;}
  .title-band-inner{padding:32px 24px;gap:24px;}
  .title-band h1{font-size:29px;}
  .section-head h2{font-size:26px;}
  .tl-item{padding-left:52px;}
  .timeline::before{left:15px;}
  .tl-node{left:4px;}
  .data-strip .container{gap:22px;}
  .data-item{flex:1 1 45%;}
  .cta-band{padding:36px 24px;}
  .cta-band h2{font-size:23px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
}
@media screen and (max-width:520px){
  .container{padding:0 20px;}
  .brand-text{font-size:15px;}
  .title-band h1{font-size:25px;}
  .title-band,.title-facts,.tl-card,.cta-band,.record-panel{border-radius:14px;}
  .section{padding:64px 0 0;}
  .data-item{flex:1 1 100%;padding-right:0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B14;
  --bg-1:#0B1424;
  --bg-2:#101C30;
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.07);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --primary:#12D3C8;
  --primary-deep:#0FB4AC;
  --primary-soft:rgba(18,211,200,.14);
  --accent:#FF8A3D;
  --accent-soft:rgba(255,138,61,.12);
  --text:#E8EEF6;
  --text-2:#9FB0C4;
  --text-3:#5E6E82;
  --success:#3ED598;
  --warn:#FFC24B;
  --error:#FF5C5C;
  --r-8:8px;
  --r-12:12px;
  --r-18:18px;
  --r-26:26px;
  --pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 18px 40px -24px rgba(0,0,0,.85);
  --shadow-hover:0 26px 60px -28px rgba(0,0,0,.9), 0 0 0 1px rgba(18,211,200,.35);
  --shadow-glow:0 0 0 1px rgba(18,211,200,.45), 0 10px 30px -10px rgba(18,211,200,.55);
  --container:1280px;
  --sect-y:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--text-2);text-decoration:none;transition:color .25s ease,background-color .25s ease,border-color .25s ease;}
a:hover{color:var(--text);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;line-height:1.3;}
p{margin:0 0 20px;color:var(--text-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
::selection{background:var(--primary-soft);color:var(--text);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#08101D;}
::-webkit-scrollbar-thumb{background:rgba(18,211,200,.45);border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:rgba(18,211,200,.7);}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--sect-y) 0;position:relative;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 顶栏 / 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,20,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease,padding .3s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 34px -22px rgba(0,0,0,.95);}
.nav-bar{
  display:flex;align-items:center;gap:20px;
  min-height:60px;padding-top:6px;padding-bottom:6px;
  transition:min-height .3s ease;
}
.site-header.is-scrolled .nav-bar{min-height:52px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,rgba(18,211,200,.22),rgba(18,211,200,.04));
  border:1px solid rgba(18,211,200,.4);
  box-shadow:0 0 18px -6px rgba(18,211,200,.6);
}
.logo-mark svg{width:19px;height:19px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.2px;}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.4px;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;}
.nav-links::-webkit-scrollbar{display:none;}
.nav-links a{
  position:relative;padding:8px 12px;font-size:14px;font-weight:600;
  color:var(--text-2);white-space:nowrap;border-radius:var(--r-8);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--primary);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.hot-tags{display:flex;align-items:center;gap:8px;}
.hot-tag{
  font-size:12px;padding:4px 11px;border-radius:var(--pill);
  border:1px solid rgba(255,138,61,.45);color:var(--accent);
  background:var(--accent-soft);white-space:nowrap;transition:all .25s ease;
}
.hot-tag:hover{background:rgba(255,138,61,.2);color:#FFC79A;border-color:rgba(255,138,61,.7);}
.search-toggle{
  width:38px;height:38px;border-radius:var(--r-12);
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);background:var(--glass);
}
.search-toggle:hover{color:var(--primary);border-color:rgba(18,211,200,.45);}
.search-toggle svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.search-panel{display:none;padding:0 0 14px;}
.search-panel.is-open{display:block;animation:fadeUp .24s ease-out;}
.search-form{display:flex;gap:10px;}
.search-form input{flex:1 1 auto;}
.menu-toggle{
  width:42px;height:42px;border-radius:var(--r-12);border:1px solid var(--line);
  display:none;align-items:center;justify-content:center;color:var(--text-2);background:var(--glass);
}
.menu-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

.drawer{
  position:fixed;inset:0;z-index:90;display:none;
}
.drawer.is-open{display:block;}
.drawer__mask{position:absolute;inset:0;background:rgba(3,7,14,.72);backdrop-filter:blur(4px);}
.drawer__panel{
  position:absolute;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--bg-1);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  animation:slideIn .26s ease-out;
}
.drawer__head{display:flex;align-items:center;justify-content:space-between;}
.drawer__head b{font-size:15px;color:var(--text);}
.drawer__close{
  width:44px;height:44px;border-radius:var(--r-12);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
}
.drawer__close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.drawer__nav{display:flex;flex-direction:column;gap:4px;}
.drawer__nav a{
  padding:12px 14px;border-radius:var(--r-12);font-size:15px;font-weight:600;
  color:var(--text-2);border:1px solid transparent;
}
.drawer__nav a:hover{background:var(--glass);color:var(--text);border-color:var(--line);}
.drawer__nav a.is-active{color:var(--primary);background:var(--primary-soft);border-color:rgba(18,211,200,.35);}
.drawer__divider{height:1px;background:var(--line);}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-12);font-size:15px;font-weight:700;
  border:1px solid transparent;transition:all .25s ease;cursor:pointer;line-height:1.2;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04211F;box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04211F;box-shadow:0 0 0 1px rgba(18,211,200,.6),0 18px 40px -14px rgba(18,211,200,.65);}
.btn-primary:active{transform:translateY(-1px);}
.btn-ghost{
  border-color:var(--line-strong);color:var(--text);background:rgba(255,255,255,.02);
}
.btn-ghost:hover{background:rgba(18,211,200,.12);color:var(--primary);border-color:rgba(18,211,200,.45);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}

.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:var(--pill);line-height:1.6;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-muted{background:rgba(159,176,196,.12);color:var(--text-2);}

.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-18);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:transform .5s ease,border-color .3s ease,box-shadow .3s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(18,211,200,.4);box-shadow:var(--shadow-hover);}

.input{
  width:100%;padding:12px 16px;border-radius:var(--r-12);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  font-size:15px;transition:all .25s ease;
}
.input::placeholder{color:var(--text-3);}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(18,211,200,.18);}

.section-head{margin-bottom:40px;}
.section-title{font-size:32px;line-height:1.3;position:relative;padding-left:16px;}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  background:var(--primary);border-radius:3px;box-shadow:0 0 14px rgba(18,211,200,.6);
}
.section-sub{margin-top:12px;font-size:15px;color:var(--text-2);max-width:760px;}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{padding:18px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-12);
  padding:10px 16px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- 标题带 ---------- */
.title-band{padding:40px 0 32px;border-bottom:1px solid var(--line);}
.title-band__row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.title-band h1{font-size:42px;line-height:1.22;max-width:760px;}
.title-band h1 em{font-style:normal;color:var(--primary);}
.title-band__lead{margin-top:16px;font-size:16px;color:var(--text-2);max-width:720px;}
.filter-pills{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;}
.pill{
  font-size:13px;font-weight:600;padding:8px 16px;border-radius:var(--pill);
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.02);
  transition:all .25s ease;
}
.pill:hover{color:var(--primary);border-color:rgba(18,211,200,.5);background:var(--primary-soft);}
.pill.is-active{background:var(--primary-soft);color:var(--primary);border-color:rgba(18,211,200,.55);box-shadow:0 0 0 1px rgba(18,211,200,.25);}

/* ---------- 8+4 主体 ---------- */
.layout-8-4{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.card-matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.topic-card{display:flex;flex-direction:column;overflow:hidden;}
.topic-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-18) var(--r-18) 0 0;background:var(--bg-2);}
.topic-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.topic-card:hover .topic-card__media img{transform:scale(1.04);}
.topic-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,20,0) 40%,rgba(6,11,20,.75) 100%);}
.topic-card__tag{position:absolute;left:14px;top:14px;z-index:2;}
.topic-card__body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.topic-card__body h3{font-size:19px;line-height:1.45;}
.topic-card__body p{font-size:14px;line-height:1.8;color:var(--text-2);}
.topic-card__link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
.topic-card__link:hover{color:#7FF3EC;text-decoration:underline;}
.topic-card__link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:86px;}
.side-card{padding:24px;}
.side-card h4{font-size:15px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h4::before{content:"";width:3px;height:14px;background:var(--primary);border-radius:3px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud a{
  font-size:12px;padding:5px 12px;border-radius:var(--pill);
  background:rgba(159,176,196,.1);color:var(--text-2);border:1px solid transparent;
}
.tag-cloud a:hover{background:var(--primary-soft);color:var(--primary);border-color:rgba(18,211,200,.4);}
.quick-list{display:flex;flex-direction:column;gap:2px;}
.quick-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:var(--r-12);font-size:14px;color:var(--text-2);
}
.quick-list a:hover{background:var(--glass-strong);color:var(--primary);}
.quick-list a span.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.7;flex:0 0 auto;}
.cta-card{
  padding:26px;border-radius:var(--r-18);border:1px solid rgba(18,211,200,.28);
  background:linear-gradient(160deg,rgba(18,211,200,.14),rgba(11,20,36,.6));
  box-shadow:var(--shadow-card);
}
.cta-card h4{font-size:18px;margin-bottom:10px;}
.cta-card p{font-size:14px;margin-bottom:18px;}
.note-card{display:flex;gap:14px;align-items:flex-start;padding:20px;}
.note-card svg{width:24px;height:24px;flex:0 0 auto;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-top:3px;}
.note-card p{font-size:14px;line-height:1.75;}

/* ---------- 说明带 ---------- */
.explain-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.explain-item{padding:26px;border-left:2px solid rgba(18,211,200,.35);}
.explain-item h3{font-size:18px;margin-bottom:12px;}
.explain-item p{font-size:14.5px;}
.explain-item .num-tag{
  display:inline-block;font-family:ui-monospace,Consolas,monospace;font-size:13px;
  color:var(--accent);margin-bottom:10px;letter-spacing:1px;
}

/* ---------- 问答 ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{
  border-radius:var(--r-18);border:1px solid var(--line);background:var(--glass);
  overflow:hidden;transition:border-color .3s ease;
}
.faq-item.is-open{border-color:rgba(18,211,200,.5);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);text-align:left;
}
.faq-q .icon{
  width:24px;height:24px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  transition:transform .24s ease,border-color .24s ease;
}
.faq-q .icon::before{content:"+";font-size:15px;line-height:1;}
.faq-item.is-open .faq-q .icon{transform:rotate(45deg);border-color:rgba(18,211,200,.6);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 22px 20px;font-size:14.5px;line-height:1.8;}
.faq-item.is-open .faq-a{max-height:340px;}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 var(--sect-y);}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-26);
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(18,211,200,.14),rgba(6,11,20,.9) 62%);
  box-shadow:var(--shadow-card);
  padding:56px 48px;
}
.cta-inner::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,211,200,.25),transparent 68%);
}
.cta-inner h2{font-size:30px;margin-bottom:14px;position:relative;}
.cta-inner p{font-size:16px;max-width:640px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--bg-1);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;}
.footer-col{min-width:0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:16px;color:var(--text);font-weight:800;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:18px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-12);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);background:var(--glass);
}
.footer-social a:hover{color:var(--primary);border-color:rgba(18,211,200,.45);}
.footer-social svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--primary);}
.footer-form label{display:block;font-size:13px;color:var(--text-2);margin-bottom:10px;}
.footer-form input{margin-bottom:12px;}
.footer-privacy{font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.7;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a{font-size:13px;color:var(--text-3);}
.footer-bottom a:hover{color:var(--primary);}

@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
@keyframes slideIn{from{transform:translateX(30px);opacity:.4;}to{transform:translateX(0);opacity:1;}}
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:translateY(0);transition:opacity .42s ease-out,transform .42s ease-out;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  .layout-8-4{grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:26px;}
}
@media (max-width:1024px){
  :root{--sect-y:80px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .hot-tags{display:none;}
  .layout-8-4{grid-template-columns:minmax(0,1fr);}
  .side-col{position:static;}
  .explain-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .title-band h1{font-size:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .card-matrix{grid-template-columns:minmax(0,1fr);}
  .faq-grid{grid-template-columns:minmax(0,1fr);}
  .explain-grid{grid-template-columns:minmax(0,1fr);}
  .title-band h1{font-size:31px;}
  .section-title{font-size:26px;}
  .cta-inner{padding:38px 26px;border-radius:var(--r-18);}
  .cta-inner h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .filter-pills{justify-content:flex-start;}
  .brand-text span{display:none;}
}
@media (max-width:520px){
  :root{--sect-y:64px;}
  body{font-size:15px;}
  .title-band h1{font-size:27px;}
  .section-title{font-size:23px;}
  .glass-card{border-radius:14px;}
  .topic-card__media{border-radius:14px 14px 0 0;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
}