/* roulang page: index */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --line:rgba(120,160,200,.14);
  --line-strong:rgba(120,160,200,.26);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-soft:rgba(47,227,192,.12);
  --accent-2:#FFC46B;
  --warn:#FF7A7A;
  --radius-card:16px;
  --radius-ctl:10px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-btn:0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  --font-sans:-apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono:ui-monospace, "SFMono-Regular", Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg-900);
  color:var(--text-1);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:rgba(10,17,32,.92);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:36px;padding:6px 0;
}
.topbar-left{display:flex;align-items:center;gap:8px;min-width:0}
.topbar-dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 10px rgba(47,227,192,.8);flex:none;
}
.topbar-text{
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-close{
  flex:none;width:24px;height:24px;border-radius:6px;display:grid;place-items:center;
  color:var(--text-3);transition:color .2s ease,background .2s ease;
}
.topbar-close:hover{color:var(--text-1);background:rgba(120,160,200,.12)}
.topbar.is-hidden{display:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,10,18,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;gap:20px;height:72px}
@media (max-width:1023px){.nav{height:60px;gap:12px}}

.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  border:1.5px solid rgba(47,227,192,.75);
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(47,227,192,.18),rgba(47,227,192,0) 65%);
  box-shadow:0 0 18px -6px rgba(47,227,192,.7);
  flex:none;
}
.logo-mark svg{width:15px;height:15px;color:var(--accent)}
.logo-text{display:flex;align-items:center;gap:7px;min-width:0}
.logo-name{
  font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;
}
.logo-status{
  display:inline-flex;align-items:center;gap:4px;font-size:11px;color:var(--text-3);
  border:1px solid var(--line);border-radius:999px;padding:1px 7px;white-space:nowrap;
}
.logo-status i{width:5px;height:5px;border-radius:50%;background:var(--accent);display:block}
@media (max-width:639px){
  .logo-name{font-size:14px}
  .logo-status{display:none}
}

.nav-links{display:flex;align-items:center;gap:22px;margin-left:8px}
.nav-links > li > a{
  position:relative;display:inline-block;font-size:14.5px;color:var(--text-2);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-links > li > a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);border-radius:2px;transition:width .25s ease;
}
.nav-links > li > a:hover{color:var(--text-1)}
.nav-links > li > a:hover::after{width:60%}
.nav-links > li > a.is-active{color:var(--accent)}
.nav-links > li > a.is-active::after{width:60%}

.nav-more{position:relative;display:none}
.nav-more-btn{
  display:inline-flex;align-items:center;gap:5px;font-size:14.5px;color:var(--text-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-more-btn:hover{color:var(--text-1)}
.nav-more-menu{
  position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(-6px);
  min-width:186px;background:rgba(14,24,40,.98);border:1px solid var(--line);
  border-radius:12px;padding:8px;box-shadow:0 24px 48px -24px rgba(0,0,0,.95);
  opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.nav-more:hover .nav-more-menu,.nav-more:focus-within .nav-more-menu{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}
.nav-more-menu a{
  display:block;font-size:14px;color:var(--text-2);padding:9px 12px;border-radius:8px;
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.nav-more-menu a:hover{background:rgba(47,227,192,.10);color:var(--text-1)}

.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  position:relative;width:220px;
  background:rgba(14,24,40,.7);border:1px solid var(--line);
  border-radius:var(--radius-ctl);transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{
  position:absolute;left:11px;top:50%;transform:translateY(-50%);
  width:15px;height:15px;color:var(--text-3);pointer-events:none;
}
.nav-search input{
  width:100%;height:38px;background:transparent;border:none;
  padding:0 12px 0 34px;font-size:13.5px;color:var(--text-1);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{outline:none}
.nav-search:focus-within{border-color:rgba(47,227,192,.55);box-shadow:0 0 0 3px rgba(47,227,192,.14)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-ctl);font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;text-align:center;
}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-md{height:44px;padding:0 22px;font-size:15px}
.btn-lg{height:48px;padding:0 26px;font-size:15.5px}
.btn-primary{
  background:var(--accent);color:#04201B;box-shadow:var(--shadow-btn);
}
.btn-primary:hover{background:#4BEFD1;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,192,.6),0 16px 32px -12px rgba(47,227,192,.65)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  border:1px solid var(--line-strong);color:var(--text-1);background:rgba(255,255,255,.02);
}
.btn-ghost:hover{border-color:rgba(47,227,192,.5);color:var(--accent);background:rgba(47,227,192,.07);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);
  transition:color .2s ease;
}
.btn-link svg{width:14px;height:14px;transition:transform .2s ease}
.btn-link:hover{color:#5AF0D5}
.btn-link:hover svg{transform:translateX(3px)}

.burger{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;color:var(--text-1);
}
.burger:hover{border-color:rgba(47,227,192,.5);color:var(--accent)}

@media (max-width:1439px){
  .nav-links > li:nth-child(n+5){display:none}
  .nav-more{display:block}
}
@media (min-width:1440px){
  .nav-more{display:none}
}
@media (max-width:1279px){
  .nav-search{width:180px}
  .nav-links{gap:16px}
}
@media (max-width:1023px){
  .nav-links,.nav-search,.nav-more{display:none}
  .nav-right .btn-ghost{display:none}
  .burger{display:flex}
}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(6,10,18,.98);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 20px;border-bottom:1px solid var(--line);flex:none;
}
.drawer-body{padding:22px 20px 40px;display:flex;flex-direction:column;gap:22px}
.drawer-search{
  position:relative;background:rgba(14,24,40,.8);border:1px solid var(--line);
  border-radius:var(--radius-ctl);
}
.drawer-search input{width:100%;height:46px;background:transparent;border:none;padding:0 14px 0 38px;font-size:14px}
.drawer-search input:focus{outline:none}
.drawer-search:focus-within{border-color:rgba(47,227,192,.55);box-shadow:0 0 0 3px rgba(47,227,192,.14)}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-3)}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  padding:14px 4px;font-size:15.5px;color:var(--text-2);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-links a.is-active{color:var(--accent)}
.drawer-actions{display:flex;flex-direction:column;gap:12px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:56px 0 68px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.20;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 340px at 22% 8%,rgba(47,227,192,.10),transparent 70%),
    radial-gradient(520px 320px at 88% 82%,rgba(47,227,192,.07),transparent 72%),
    linear-gradient(180deg,rgba(6,10,18,.72),rgba(6,10,18,.96));
}
.hero > .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:start}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:44px;align-items:center}
}
@media (max-width:639px){
  .hero::before{display:none}
  .hero{padding:40px 0 52px;background:var(--bg-900)}
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--accent);
  border:1px solid rgba(47,227,192,.32);background:rgba(47,227,192,.08);
  border-radius:999px;padding:5px 13px;margin-bottom:20px;
}
.hero-eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--accent);display:block}
.hero h1{
  font-size:clamp(30px,4vw,50px);
  line-height:1.15;
  letter-spacing:-.01em;
  font-weight:800;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{
  font-size:16px;color:var(--text-2);max-width:600px;margin-bottom:28px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;max-width:560px;
}
.hero-stat{border-left:1px solid var(--line-strong);padding-left:14px}
.hero-stat b{
  display:block;font-family:var(--font-mono);font-size:22px;color:var(--text-1);
  font-weight:600;letter-spacing:-.02em;line-height:1.3;
}
.hero-stat span{font-size:12px;color:var(--text-3);line-height:1.5;display:block;margin-top:2px}

/* Hero 玻璃卡 */
.glass-card{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background:rgba(14,24,40,.55);
  border:1px solid rgba(120,160,200,.2);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 30px 60px -32px rgba(0,0,0,.95);
  padding:24px;
}
.glass-card::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.4;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.15));
}
.glass-card::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;opacity:.7;pointer-events:none;
}
.glass-card > *{position:relative;z-index:2}
.glass-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:14px;border-bottom:1px solid rgba(120,160,200,.2);margin-bottom:16px;
}
.glass-head h2{font-size:15px;font-weight:700;letter-spacing:.01em}
.glass-pill{
  font-size:11px;color:var(--accent-2);border:1px solid rgba(255,196,107,.4);
  background:rgba(255,196,107,.10);border-radius:999px;padding:2px 9px;white-space:nowrap;
}
.glass-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-bottom:1px dashed rgba(120,160,200,.16);
}
.glass-row:last-of-type{border-bottom:none}
.glass-row-label{font-size:13.5px;color:var(--text-2)}
.glass-row-value{
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-1);
  display:inline-flex;align-items:center;gap:6px;
}
.glass-row-value i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;box-shadow:0 0 8px rgba(47,227,192,.9)}
.glass-card .btn{width:100%;margin-top:18px}
.glass-note{font-size:11.5px;color:var(--text-3);text-align:center;margin-top:10px}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
@media (max-width:1023px){.section{padding:58px 0}}
@media (max-width:639px){.section{padding:44px 0}}
.section-head{margin-bottom:36px;max-width:760px}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--accent);
  text-transform:uppercase;margin-bottom:12px;font-family:var(--font-mono);
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);line-height:1.25;letter-spacing:-.01em;font-weight:700;
}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:680px}
.section-head-flex{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-bottom:36px;
}

/* 服务编号列表 */
.svc-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .svc-layout{grid-template-columns:4fr 8fr;gap:56px;align-items:start}
  .svc-sticky{position:sticky;top:104px}
}
.svc-sticky h2{font-size:clamp(24px,2.4vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.svc-sticky p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85}
.svc-list{display:flex;flex-direction:column;gap:14px}
.svc-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  background:linear-gradient(180deg,rgba(14,24,40,.95),rgba(10,17,32,.95));
  border:1px solid var(--line);border-left:2px solid rgba(47,227,192,.32);
  border-radius:var(--radius-card);padding:22px 22px 20px;
  box-shadow:var(--shadow-card);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.svc-item:hover{
  border-color:rgba(47,227,192,.36);border-left-color:var(--accent);
  transform:translateY(-2px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 30px 56px -30px rgba(0,0,0,.95),0 0 28px -18px rgba(47,227,192,.8);
}
.svc-num{
  font-family:var(--font-mono);font-size:26px;line-height:1;color:rgba(47,227,192,.55);
  font-weight:600;letter-spacing:-.03em;padding-top:4px;
}
.svc-item:nth-child(even) .svc-num{color:rgba(255,196,107,.6)}
.svc-item h3{font-size:18px;font-weight:700;margin-bottom:7px;letter-spacing:-.01em}
.svc-item p{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:10px}

/* 数据带 */
.stat-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:34px 0;background:rgba(10,17,32,.6);
}
.stat-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;
}
@media (min-width:900px){.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-cell{
  padding:10px 20px;border-left:1px solid var(--line);
}
.stat-cell:first-child{border-left:none}
@media (max-width:899px){
  .stat-cell:nth-child(odd){border-left:none}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--line);margin-top:14px;padding-top:18px}
}
.stat-num{
  font-family:var(--font-mono);font-size:clamp(28px,3.4vw,40px);font-weight:600;
  letter-spacing:-.03em;line-height:1.1;color:var(--text-1);
}
.stat-num span{font-size:14px;color:var(--accent);margin-left:3px;font-weight:600}
.stat-label{font-size:12.5px;color:var(--text-3);margin-top:6px;line-height:1.6}

/* 场景非对称网格 */
.scene-grid{
  display:grid;grid-template-columns:1fr;gap:18px;
}
@media (min-width:900px){
  .scene-grid{grid-template-columns:repeat(12,1fr);grid-auto-rows:minmax(120px,auto);gap:20px}
  .scene-a{grid-column:span 7;grid-row:span 2}
  .scene-b{grid-column:span 5;grid-row:span 1}
  .scene-c{grid-column:span 5;grid-row:span 1}
  .scene-d{grid-column:span 12;grid-row:span 1}
}
.scene-card{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  border:1px solid var(--line);background:var(--panel);
  box-shadow:var(--shadow-card);
  transition:border-color .22s ease,transform .22s ease;
  display:flex;flex-direction:column;justify-content:flex-end;
  min-height:180px;
}
.scene-card:hover{border-color:rgba(47,227,192,.35);transform:translateY(-2px)}
.scene-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;opacity:.55;
}
.scene-card:hover img{transform:scale(1.02)}
.scene-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.15) 0%,rgba(6,10,18,.82) 62%,rgba(6,10,18,.97) 100%);
}
.scene-body{position:relative;z-index:2;padding:22px}
.scene-body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--text-2);line-height:1.75;max-width:520px}
.scene-a .scene-body h3{font-size:22px}

/* 方案对比 */
.plan-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:860px){.plan-grid{grid-template-columns:1fr 1fr;gap:24px}}
.plan-card{
  position:relative;border-radius:var(--radius-card);padding:28px;
  background:linear-gradient(180deg,rgba(14,24,40,.96),rgba(10,17,32,.96));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:border-color .22s ease,transform .22s ease;
}
.plan-card:hover{transform:translateY(-2px);border-color:rgba(47,227,192,.28)}
.plan-card.is-featured{border-color:rgba(47,227,192,.55);box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 28px 56px -30px rgba(0,0,0,.95),0 0 0 1px rgba(47,227,192,.12)}
.plan-badge{
  position:absolute;top:-11px;right:22px;font-size:11.5px;color:#04201B;background:var(--accent);
  border-radius:999px;padding:3px 12px;font-weight:700;
}
.plan-card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.plan-desc{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:20px}
.plan-list{display:flex;flex-direction:column;gap:11px;margin-bottom:22px}
.plan-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);line-height:1.7}
.plan-list svg{width:16px;height:16px;flex:none;margin-top:5px;color:var(--accent)}

/* 最新信息 CMS */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,24,40,.96),rgba(10,17,32,.96));
  box-shadow:var(--shadow-card);
  transition:border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{
  border-color:rgba(47,227,192,.35);transform:translateY(-2px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 30px 56px -30px rgba(0,0,0,.95);
}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-800)}
.news-cover img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .45s ease,opacity .3s ease}
.news-card:hover .news-cover img{transform:scale(1.02);opacity:.92}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-tag{
  align-self:flex-start;font-size:11.5px;color:var(--text-2);
  border:1px solid var(--line-strong);border-radius:999px;padding:2px 10px;margin-bottom:11px;
}
.news-title{
  font-size:16px;font-weight:700;line-height:1.55;letter-spacing:-.01em;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:13.5px;color:var(--text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.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(--font-mono);font-size:12px;color:var(--text-3)}
.news-read{font-size:12.5px;color:var(--accent);display:inline-flex;align-items:center;gap:5px}
.news-read svg{width:12px;height:12px;transition:transform .2s ease}
.news-card:hover .news-read svg{transform:translateX(3px)}

.empty-state{
  border:1px dashed rgba(120,160,200,.3);border-radius:var(--radius-card);
  padding:44px 24px;text-align:center;background:rgba(10,17,32,.6);
}
.empty-state svg{width:34px;height:34px;color:var(--text-3);margin:0 auto 14px}
.empty-state p{font-size:14.5px;color:var(--text-2);margin-bottom:16px}

/* FAQ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);position:relative;
  transition:background .25s ease;
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item::before{
  content:"";position:absolute;left:-16px;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--accent);opacity:0;transition:opacity .25s ease;
}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--accent)}
.faq-icon{
  width:22px;height:22px;flex:none;color:var(--text-2);
  transition:transform .3s ease,color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--accent)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a-inner{padding:0 40px 22px 0;font-size:14.5px;color:var(--text-2);line-height:1.85}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.contact-grid{grid-template-columns:5fr 7fr;gap:48px;align-items:start}}
.contact-info h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:14px}
.contact-info > p{color:var(--text-2);font-size:15px;line-height:1.85;margin-bottom:26px}
.contact-lines{display:flex;flex-direction:column;gap:16px}
.contact-line{display:flex;gap:14px;align-items:flex-start}
.contact-ic{
  width:36px;height:36px;flex:none;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--accent);background:rgba(47,227,192,.07);
}
.contact-ic svg{width:16px;height:16px}
.contact-line b{display:block;font-size:14.5px;font-weight:600;margin-bottom:3px}
.contact-line span{font-size:13.5px;color:var(--text-2);line-height:1.7}

.form-card{
  border-radius:var(--radius-card);padding:26px;
  background:linear-gradient(180deg,rgba(14,24,40,.96),rgba(10,17,32,.96));
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
@media (min-width:640px){.form-card{padding:32px}}
.form-row{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13.5px;color:var(--text-2)}
.field label .req{color:var(--warn);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;background:rgba(6,10,18,.8);border:1px solid var(--line);
  border-radius:var(--radius-ctl);padding:11px 13px;font-size:14.5px;color:var(--text-1);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{resize:vertical;min-height:112px;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(47,227,192,.6);
  box-shadow:0 0 0 3px rgba(47,227,192,.16);background:rgba(6,10,18,.95);
}
.field select{
  appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394A7BF' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:36px;
}
.field select option{background:#0E1828;color:var(--text-1)}
.err{font-size:12.5px;color:var(--warn);display:none}
.field.has-err input,.field.has-err textarea,.field.has-err select{border-color:rgba(255,122,122,.6)}
.field.has-err .err{display:block}
.agree{display:flex;align-items:flex-start;gap:10px;margin:4px 0 20px}
.agree input{
  width:16px;height:16px;flex:none;margin-top:4px;accent-color:var(--accent);
  border-radius:4px;
}
.agree label{font-size:13px;color:var(--text-2);line-height:1.7}
.form-tip{font-size:12px;color:var(--text-3);margin-top:12px;text-align:center}
.form-ok{
  display:none;font-size:13.5px;color:var(--accent);background:rgba(47,227,192,.1);
  border:1px solid rgba(47,227,192,.32);border-radius:10px;padding:11px 14px;margin-top:16px;
}
.form-ok.is-show{display:block}

/* 页脚 */
.site-footer{
  position:relative;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,32,.6),rgba(6,10,18,.98));
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;pointer-events:none;
  -webkit-mask-image:radial-gradient(600px 240px at 30% 0%,#000,transparent 80%);
  mask-image:radial-gradient(600px 240px at 30% 0%,#000,transparent 80%);
}
.footer-main{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 40px;
}
@media (min-width:768px){.footer-main{grid-template-columns:1fr 1fr;gap:36px}}
@media (min-width:1024px){.footer-main{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.85;margin-top:16px;max-width:320px}
.footer-col h3{font-size:13px;letter-spacing:.1em;color:var(--text-3);margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-col li span{font-size:14px;color:var(--text-2);line-height:1.7;display:block}
.footer-bottom{
  position:relative;z-index:2;border-top:1px solid var(--line);
  padding:18px 0 26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:12.5px;color:var(--text-3);line-height:1.7}
.footer-bottom .dot-sep{margin:0 8px;opacity:.5}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-strong);background:rgba(14,24,40,.92);
  color:var(--text-1);display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s,border-color .2s ease,color .2s ease;
  box-shadow:0 18px 36px -20px rgba(0,0,0,.95);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(47,227,192,.6);color:var(--accent)}
.to-top svg{width:17px;height:17px}

/* 辅助 */
.mono{font-family:var(--font-mono)}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* roulang page: article */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --panel-2:#101C2E;
  --line:rgba(120,160,200,.14);
  --line-strong:rgba(120,160,200,.30);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-2:#FFC46B;
  --danger:#FF7A7A;
  --radius-card:16px;
  --radius-sm:10px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-btn:0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  --mono:ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
body.no-scroll{overflow:hidden}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--radius-sm);
  font-size:14px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.btn-sm{height:38px;padding:0 14px;font-size:13.5px}
.btn-primary{background:var(--accent);color:#04211C;box-shadow:var(--shadow-btn)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text-1);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:rgba(47,227,192,.48);color:var(--accent);transform:translateY(-1px)}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,10,18,.55);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.82);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:28px;height:28px;display:grid;place-items:center;flex:none;
  border-radius:9px;border:1px solid rgba(47,227,192,.42);
  background:rgba(47,227,192,.09);color:var(--accent);
}
.logo-mark svg{width:17px;height:17px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:15.5px;font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
.logo-status{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--text-3);margin-top:2px}
.logo-status i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9)}
.nav-links{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:14.5px;color:var(--text-2);transition:color .18s ease}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;border-radius:2px;
  background:var(--accent);transition:width .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.is-active::after{width:60%}
.nav-links a.is-active{color:var(--text-1)}
.nav-more{position:relative;display:none}
.nav-more-btn{
  display:inline-flex;align-items:center;gap:5px;height:34px;padding:0 10px;
  border-radius:8px;font-size:14px;color:var(--text-2);
  border:1px solid transparent;transition:all .18s ease;
}
.nav-more-btn:hover{color:var(--text-1);border-color:var(--line);background:rgba(255,255,255,.03)}
.nav-more-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:168px;padding:8px;
  border-radius:12px;border:1px solid var(--line);background:rgba(10,17,32,.96);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  box-shadow:0 24px 48px -24px rgba(0,0,0,.9);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .2s ease;
}
.nav-more.is-open .nav-more-menu{opacity:1;visibility:visible;transform:none}
.nav-more-menu a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);transition:all .16s ease}
.nav-more-menu a:hover{background:rgba(47,227,192,.1);color:var(--accent)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:11px;width:15px;height:15px;color:var(--text-3);pointer-events:none}
.nav-search input{
  width:220px;height:38px;padding:0 12px 0 33px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-1);font-size:13.5px;outline:none;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  border-color:rgba(47,227,192,.55);background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(47,227,192,.12);
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  color:var(--text-1);align-items:center;justify-content:center;background:rgba(255,255,255,.03);
}
.nav-toggle svg{width:20px;height:20px}

@media (max-width:1439px){
  .nav-links li:nth-child(n+5){display:none}
  .nav-more{display:block}
}
@media (max-width:1180px){
  .nav-search input{width:170px}
}
@media (max-width:1023px){
  .nav-wrap{height:60px;gap:12px}
  .nav-links,.nav-more,.nav-search,.nav-right{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;padding:76px 22px 32px;
  background:rgba(6,10,18,.97);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  transform:translateY(-100%);visibility:hidden;opacity:0;
  transition:transform .3s ease, opacity .25s ease, visibility .3s;
  overflow-y:auto;
}
.drawer.is-open{transform:none;visibility:visible;opacity:1}
.drawer-search{position:relative;margin-bottom:22px}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-3)}
.drawer-search input{
  width:100%;height:46px;padding:0 12px 0 36px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-1);font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:rgba(47,227,192,.55);box-shadow:0 0 0 3px rgba(47,227,192,.12)}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:22px}
.drawer-links a{
  padding:13px 12px;border-radius:10px;font-size:15.5px;color:var(--text-2);
  border:1px solid transparent;transition:all .16s ease;
}
.drawer-links a:hover,.drawer-links a.is-active{background:rgba(47,227,192,.08);color:var(--accent);border-color:rgba(47,227,192,.18)}
.drawer-actions{display:flex;flex-direction:column;gap:10px}

/* ---------- 页面头带 ---------- */
.page-band{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg, rgba(6,10,18,.72) 0%, rgba(6,10,18,.94) 68%, var(--bg-900) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
}
.page-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
}
.page-band .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:22px 0 0;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2);transition:color .16s ease}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text-3);max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:20px 0 40px;max-width:840px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
  border-radius:999px;border:1px solid rgba(255,196,107,.32);
  background:rgba(255,196,107,.08);color:var(--accent-2);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.article-head h1{
  margin-top:16px;
  font-size:clamp(24px,3.4vw,34px);
  line-height:1.32;letter-spacing:-.01em;font-weight:700;color:var(--text-1);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 11px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);font-size:12.5px;
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:14px;height:14px;color:var(--text-3)}
.mono{font-family:var(--mono);font-size:12.5px;letter-spacing:.02em}
.meta-item .mono{color:var(--text-2)}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:44px;padding:48px 0 72px;
}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:56px;padding:56px 0 80px}
}

.article-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card), inset 2px 0 0 rgba(47,227,192,.42);
  padding:30px 22px;
}
@media (min-width:768px){ .article-panel{padding:44px 44px 48px} }

.article-body{max-width:760px;font-size:16px;line-height:1.9;color:#D5E2F0}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;margin-top:2em;padding-left:14px;
  font-size:24px;line-height:1.45;font-weight:700;color:var(--text-1);letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:3px;height:1.05em;border-radius:3px;
  background:var(--accent);box-shadow:0 0 12px rgba(47,227,192,.55);
}
.article-body h3{margin-top:1.7em;font-size:20px;line-height:1.5;font-weight:700;color:var(--text-1)}
.article-body h4{margin-top:1.5em;font-size:17px;font-weight:700;color:var(--text-1)}
.article-body p{color:#C9D8E8}
.article-body a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{filter:brightness(1.12)}
.article-body strong{color:var(--text-1);font-weight:700}
.article-body ul,.article-body ol{margin-left:0;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-top:.55em;color:#C9D8E8}
.article-body ul li::marker{color:var(--accent)}
.article-body ol li::marker{color:var(--accent-2);font-family:var(--mono);font-size:.92em}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;background:rgba(47,227,192,.06);color:#CFE3EE;
}
.article-body blockquote p{color:#CFE3EE;margin:0}
.article-body img{border-radius:12px;margin:1.6em 0;border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:12.5px;color:var(--text-3);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.04);color:var(--text-1);font-weight:600}
.article-body td{color:#C9D8E8}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-body code{
  font-family:var(--mono);font-size:.9em;padding:2px 6px;border-radius:6px;
  background:rgba(255,255,255,.06);color:var(--accent);
}

/* 无内容态 */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  background:rgba(255,255,255,.02);
  padding:56px 24px;text-align:center;
}
.empty-state .es-icon{
  width:52px;height:52px;margin:0 auto 16px;display:grid;place-items:center;
  border-radius:14px;border:1px solid var(--line);color:var(--text-3);background:rgba(255,255,255,.03);
}
.empty-state h2{font-size:19px;font-weight:700;color:var(--text-1)}
.empty-state p{margin-top:8px;font-size:14px;color:var(--text-2)}
.empty-state .btn{margin-top:20px}

/* 标签行 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:all .16s ease;
}
.tag:hover{border-color:rgba(47,227,192,.4);color:var(--accent);background:rgba(47,227,192,.08)}

/* 上下篇 */
.pager{display:grid;grid-template-columns:1fr;gap:12px;margin-top:22px}
@media (min-width:640px){ .pager{grid-template-columns:1fr 1fr} }
.pager-item{
  display:block;padding:16px 18px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:all .18s ease;
}
.pager-item:hover{border-color:rgba(47,227,192,.35);background:rgba(47,227,192,.05);transform:translateY(-1px)}
.pager-item span{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px}
.pager-item strong{display:block;font-size:14.5px;font-weight:600;color:var(--text-1);line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pager-item.is-next{text-align:right}

/* 返回通栏 */
.back-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:26px;padding:16px 20px;border-radius:12px;
  border:1px solid var(--line);background:linear-gradient(90deg, rgba(47,227,192,.07), rgba(47,227,192,0) 62%);
}
.back-band p{font-size:13.5px;color:var(--text-2)}

/* 侧栏 */
.article-aside{display:flex;flex-direction:column;gap:18px;align-self:start}
@media (min-width:1024px){ .article-aside{position:sticky;top:96px} }
.aside-card{
  background:var(--panel-2);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card), inset 2px 0 0 rgba(47,227,192,.35);
  padding:20px;
}
.aside-card h2{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);
  text-transform:uppercase;margin-bottom:14px;
}
.aside-links{display:flex;flex-direction:column;gap:2px}
.aside-links a{
  display:block;padding:10px 0;border-bottom:1px solid rgba(120,160,200,.08);
  font-size:14px;line-height:1.55;color:var(--text-2);transition:color .16s ease;
}
.aside-links li:last-child a{border-bottom:0;padding-bottom:0}
.aside-links a:hover{color:var(--accent)}
.aside-links .date{display:block;margin-top:4px;font-family:var(--mono);font-size:11.5px;color:var(--text-3)}
.aside-note{font-size:13.5px;color:var(--text-2);line-height:1.85}
.aside-note strong{color:var(--text-1)}
.aside-list{display:flex;flex-direction:column;gap:9px}
.aside-list li{position:relative;padding-left:14px;font-size:13.5px;color:var(--text-2)}
.aside-list li::before{
  content:"";position:absolute;left:0;top:.65em;width:5px;height:5px;border-radius:50%;
  background:rgba(47,227,192,.75);
}

/* 相关推荐 */
.related-section{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.section-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:-.01em;color:var(--text-1)}
.section-head p{margin-top:6px;font-size:14px;color:var(--text-2)}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){ .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .related-grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.post-card:hover{border-color:rgba(47,227,192,.35);transform:translateY(-2px);box-shadow:0 28px 52px -30px rgba(0,0,0,.95)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-800)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;opacity:.92}
.post-card:hover .post-thumb img{transform:scale(1.03);opacity:1}
.post-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-cat{
  align-self:flex-start;height:24px;padding:0 10px;display:inline-flex;align-items:center;
  border-radius:999px;border:1px solid rgba(255,196,107,.3);background:rgba(255,196,107,.08);
  color:var(--accent-2);font-size:11.5px;letter-spacing:.02em;
}
.post-title{font-size:16px;font-weight:700;line-height:1.55;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{font-size:13.5px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;
  font-size:12px;color:var(--text-3)}
.post-foot .read{color:var(--accent);display:inline-flex;align-items:center;gap:5px;font-size:12.5px}
.post-foot .read svg{transition:transform .18s ease}
.post-card:hover .post-foot .read svg{transform:translateX(3px)}

/* CTA 窄带 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  border:1px solid rgba(47,227,192,.28);
  background:
    radial-gradient(circle at 88% 12%, rgba(47,227,192,.14), transparent 58%),
    linear-gradient(120deg, #0B1524, #0E1D2E);
  padding:32px 24px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  margin-bottom:72px;
}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);font-weight:700;color:var(--text-1)}
.cta-band p{margin-top:6px;font-size:14px;color:var(--text-2);max-width:520px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;border-top:1px solid var(--line);
  background:
    radial-gradient(circle at 12% 0%, rgba(47,227,192,.08), transparent 46%),
    linear-gradient(180deg, #080F1B, #060A12);
  padding:56px 0 0;
}
.footer-main{
  display:grid;grid-template-columns:1fr;gap:34px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
@media (min-width:768px){ .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (min-width:1024px){ .footer-main{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px} }
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-name{font-size:16px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:320px}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-2);transition:color .16s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0 26px;font-size:12.5px;color:var(--text-3);
}
.footer-bottom .dot-sep{margin:0 8px;color:var(--line-strong)}
.footer-bottom p{line-height:1.7}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(10,17,32,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  color:var(--text-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .25s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{color:var(--accent);border-color:rgba(47,227,192,.5);box-shadow:0 0 18px -6px rgba(47,227,192,.6)}

@media (max-width:639px){
  .article-panel{padding:24px 18px 28px}
  .article-head{padding:16px 0 32px}
  .breadcrumb .current{max-width:44vw}
  .cta-band{padding:26px 20px;margin-bottom:56px}
  .related-section{padding-bottom:56px}
}

/* roulang page: category1 */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --line:rgba(120,160,200,.14);
  --line-strong:rgba(120,160,200,.28);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-2:#FFC46B;
  --warn:#FF7A7A;
  --radius-card:16px;
  --radius-sm:10px;
  --shadow-card: inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-btn: 0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  --mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,10,18,.72);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.nav{display:flex;align-items:center;gap:14px;height:60px}
@media (min-width:1024px){.nav{height:72px;gap:18px}}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:28px;height:28px;flex:none;display:grid;place-items:center;
  color:var(--accent);border:1px solid rgba(47,227,192,.5);border-radius:8px;
  box-shadow:0 0 18px -6px rgba(47,227,192,.75);
}
.logo-mark svg{width:17px;height:17px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--text-1)}
.logo-status{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--text-3);letter-spacing:.02em}
.logo-status i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9)}
.nav-links{display:none;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-links a{
  position:relative;display:inline-block;padding:8px 11px;font-size:14.5px;color:var(--text-2);
  border-radius:8px;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(.6)}
.nav-links a.is-active{color:#fff}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-more{display:none;position:relative}
.nav-more-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 11px;font-size:14.5px;
  color:var(--text-2);border-radius:8px;transition:color .2s ease;
}
.nav-more-btn:hover{color:var(--text-1)}
.nav-more-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:150px;padding:8px;
  background:rgba(14,24,40,.96);border:1px solid var(--line);border-radius:12px;
  box-shadow:0 24px 48px -28px rgba(0,0,0,.95);
  display:none;flex-direction:column;gap:2px;
}
.nav-more-menu.is-open{display:flex}
.nav-more-menu a{padding:8px 10px;font-size:14px;color:var(--text-2);border-radius:8px}
.nav-more-menu a:hover{background:rgba(47,227,192,.08);color:var(--text-1)}
.nav-right{display:none;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  display:none;align-items:center;gap:8px;height:38px;padding:0 12px;width:210px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search svg{width:15px;height:15px;color:var(--text-3);flex:none}
.nav-search input{
  width:100%;background:none;border:0;outline:none;color:var(--text-1);font-size:13.5px;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{border-color:rgba(47,227,192,.55);box-shadow:0 0 0 3px rgba(47,227,192,.12)}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-links li:nth-child(n+5){display:none}
  .nav-more{display:block}
  .nav-right{display:flex}
}
@media (min-width:1200px){
  .nav-links li:nth-child(n+5){display:list-item}
  .nav-more{display:none}
  .nav-search{display:flex}
}
.nav-toggle{
  margin-left:auto;width:40px;height:40px;display:grid;place-content:center;gap:5px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease,opacity .2s ease}
.nav-toggle span:nth-child(2){width:13px;margin-left:5px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){.nav-toggle{display:none}}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .2s ease}
.btn-sm{height:38px;padding:0 15px;font-size:13.5px}
.btn-primary{background:var(--accent);color:#04140F;box-shadow:var(--shadow-btn)}
.btn-primary:hover{transform:translateY(-1px);background:#4BEFD1;box-shadow:0 0 0 1px rgba(47,227,192,.6),0 14px 32px -10px rgba(47,227,192,.6)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--text-1);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:rgba(47,227,192,.55);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);
  transition:color .2s ease;
}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover svg{transform:translateX(2px)}

/* ============ Drawer ============ */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(4,8,14,.72);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  display:flex;justify-content:flex-end;
}
.nav-drawer[hidden]{display:none}
.nav-drawer-panel{
  width:min(86vw,360px);height:100%;overflow-y:auto;
  background:var(--bg-800);border-left:1px solid var(--line);
  padding:18px 20px 32px;display:flex;flex-direction:column;gap:20px;
}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-2);
}
.drawer-close:hover{color:var(--text-1);border-color:var(--line-strong)}
.nav-search--drawer{display:flex;width:100%}
.drawer-links{display:grid;gap:4px}
.drawer-links a{
  display:block;padding:11px 12px;font-size:15px;color:var(--text-2);
  border-radius:var(--radius-sm);border:1px solid transparent;
}
.drawer-links a:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
.drawer-links a.is-active{color:#fff;background:rgba(47,227,192,.1);border-color:rgba(47,227,192,.32)}
.drawer-actions{display:grid;gap:10px;margin-top:auto}
body.is-locked{overflow:hidden}

/* ============ Page hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(680px 300px at 12% 0%, rgba(47,227,192,.13), transparent 70%),
    linear-gradient(180deg,#0A1120 0%,#060A12 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.2;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.6;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero-inner{
  display:flex;flex-direction:column;gap:22px;
  padding:44px 0 40px;
}
@media (min-width:1024px){
  .page-hero-inner{flex-direction:row;align-items:flex-end;justify-content:space-between;padding:64px 0 56px;gap:40px}
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:13px;color:var(--text-3);margin-bottom:16px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(120,160,200,.4)}
.breadcrumb .current{color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(47,227,192,.35);
  background:rgba(47,227,192,.08);
  color:var(--accent);font-size:12.5px;letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--accent)}
h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.16;
  letter-spacing:-.01em;
  font-weight:700;
  max-width:820px;
}
h1 .accent-line{color:var(--accent)}
.lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:640px}

/* ============ Sections ============ */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;letter-spacing:-.01em;font-weight:650}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--text-2);max-width:620px}

/* ============ Stat band ============ */
.stat-band{
  display:grid;grid-template-columns:1fr;gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
@media (min-width:640px){.stat-band{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stat-band{grid-template-columns:repeat(4,1fr)}}
.stat-cell{padding:22px 4px;border-bottom:1px solid var(--line)}
@media (min-width:640px){
  .stat-cell{padding:24px 22px;border-bottom:0;border-left:1px solid var(--line)}
  .stat-cell:first-child{border-left:0;padding-left:0}
}
@media (max-width:639px){.stat-cell:last-child{border-bottom:0}}
.stat-num{
  font-family:var(--mono);font-size:clamp(24px,3.4vw,34px);line-height:1.1;
  color:var(--text-1);letter-spacing:-.02em;font-weight:600;
}
.stat-num em{font-style:normal;color:var(--accent)}
.stat-label{margin-top:8px;font-size:12.5px;color:var(--text-3);letter-spacing:.02em}

/* ============ Step rows ============ */
.step-row{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
}
.step-row + .step-row{
  margin-top:36px;padding-top:36px;border-top:1px solid var(--line);
}
@media (min-width:1024px){
  .step-row{grid-template-columns:5fr 7fr;gap:52px}
  .step-row + .step-row{margin-top:0;padding-top:0;border-top:0}
  .step-row-wrap > .step-row + .step-row{margin-top:0;padding-top:56px;border-top:1px solid var(--line)}
  .step-row-wrap > .step-row{padding:56px 0}
  .step-row--reverse .step-media{order:2}
}
.step-media{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow-card);
}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.step-row:hover .step-media img{transform:scale(1.02)}
.step-meta{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step-index{
  font-family:var(--mono);font-size:14px;color:var(--accent);letter-spacing:.08em;
  padding:2px 8px;border:1px solid rgba(47,227,192,.35);border-radius:6px;
  background:rgba(47,227,192,.07);
}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;color:var(--accent-2);border:1px solid rgba(255,196,107,.35);
  background:rgba(255,196,107,.07);letter-spacing:.03em;
}
.step-body h2{font-size:clamp(20px,2.2vw,26px);line-height:1.35;letter-spacing:-.01em;margin-bottom:12px}
.step-body p{font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:600px}
.ticks{margin-top:18px;display:grid;gap:10px}
.ticks li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text-2)}
.ticks li::before{
  content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.55);
}

/* ============ Note cards ============ */
.note-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.note-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.note-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px 24px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  overflow:hidden;
}
.note-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;
  background:linear-gradient(180deg,rgba(47,227,192,.9),rgba(47,227,192,0));
}
.note-card:hover{
  border-color:rgba(47,227,192,.35);
  transform:translateY(-2px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06),0 30px 56px -30px rgba(0,0,0,.95);
}
.note-card h3{font-size:17px;line-height:1.5;margin-bottom:10px;letter-spacing:-.01em}
.note-card p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ CTA band ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(47,227,192,.28);
  border-radius:var(--radius-card);
  background:
    radial-gradient(520px 220px at 88% 10%, rgba(47,227,192,.16), transparent 70%),
    linear-gradient(135deg,#0D1A28 0%,#0A1120 100%);
  padding:32px 24px;
  display:flex;flex-direction:column;gap:20px;
}
@media (min-width:900px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px;gap:32px}
}
.cta-band h2{font-size:clamp(19px,2.2vw,24px);line-height:1.45;letter-spacing:-.01em;max-width:620px}
.cta-band p{margin-top:10px;font-size:14px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none}

/* ============ Footer ============ */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:8px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,#080E1A 0%,#060A12 100%);
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(560px 260px at 82% 0%, rgba(47,227,192,.1), transparent 70%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2}
.footer-main{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:48px 0 36px;
}
@media (min-width:768px){.footer-main{grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding:56px 0 40px}}
@media (min-width:1024px){.footer-main{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-name{font-size:15.5px;line-height:1.4}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--text-2);max-width:360px}
.footer-col h3{
  font-size:14px;font-weight:600;letter-spacing:.03em;color:var(--text-1);
  margin-bottom:14px;
}
.footer-col ul{display:grid;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);line-height:1.7}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 30px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
}
.footer-bottom p{margin:0;font-size:12.5px;line-height:1.8;color:var(--text-3)}
.dot-sep{margin:0 8px;color:rgba(120,160,200,.35)}

/* ============ Back to top ============ */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:65;
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line-strong);
  background:rgba(14,24,40,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  display:grid;place-items:center;color:var(--text-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,color .2s ease,border-color .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--accent);border-color:rgba(47,227,192,.55)}
@media (min-width:1024px){.to-top{right:28px;bottom:28px}}

/* roulang page: category3 */
:root{
    --bg-900:#060A12;
    --bg-800:#0A1120;
    --panel:#0E1828;
    --line:rgba(120,160,200,.14);
    --line-strong:rgba(120,160,200,.26);
    --text-1:#E9F1FA;
    --text-2:#94A7BF;
    --text-3:#5F738C;
    --accent:#2FE3C0;
    --accent-2:#FFC46B;
    --warn:#FF7A7A;
    --radius:16px;
    --radius-sm:10px;
    --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
    --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
    --header-h:72px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-900);
    color:var(--text-1);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    padding-top:var(--header-h);
  }
  body.is-locked{overflow:hidden;}
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  ::selection{background:rgba(47,227,192,.28);color:#fff;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:1024px){
    .container{padding:0 32px;}
  }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:70;
    height:var(--header-h);
    background:rgba(6,10,18,.72);
    border-bottom:1px solid transparent;
    transition:background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
  }
  .site-header.is-scrolled{
    background:rgba(8,14,24,.86);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom-color:var(--line);
  }
  .nav{
    display:flex;
    align-items:center;
    gap:20px;
    height:var(--header-h);
  }
  .logo{display:flex;align-items:center;gap:10px;flex:none;}
  .logo-mark{
    width:30px;height:30px;flex:none;
    display:grid;place-items:center;
    color:var(--accent);
    border:1px solid rgba(47,227,192,.35);
    border-radius:9px;
    background:rgba(47,227,192,.08);
    box-shadow:0 0 18px -6px rgba(47,227,192,.6);
  }
  .logo-mark svg{width:17px;height:17px;}
  .logo-text{display:flex;flex-direction:column;line-height:1.15;}
  .logo-name{font-size:15px;font-weight:700;letter-spacing:-.01em;color:var(--text-1);}
  .logo-status{display:flex;align-items:center;gap:5px;font-size:10.5px;color:var(--text-3);margin-top:3px;}
  .logo-status i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9);}

  .nav-links{display:flex;align-items:center;gap:2px;margin-left:6px;}
  .nav-links a{
    position:relative;
    display:block;
    padding:9px 12px;
    font-size:14px;
    color:var(--text-2);
    border-radius:8px;
    transition:color .18s ease, background .18s ease;
    white-space:nowrap;
  }
  .nav-links a::after{
    content:"";
    position:absolute;
    left:20%;right:20%;bottom:2px;
    height:2px;border-radius:2px;
    background:var(--accent);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .22s ease;
  }
  .nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
  .nav-links a:hover::after{transform:scaleX(1);}
  .nav-links a.is-active{color:var(--accent);}
  .nav-links a.is-active::after{transform:scaleX(1);}

  .nav-more{position:relative;display:none;}
  .nav-more-btn{
    display:inline-flex;align-items:center;gap:5px;
    height:36px;padding:0 12px;
    font-size:14px;color:var(--text-2);
    background:transparent;border:1px solid transparent;border-radius:8px;
    transition:.18s ease;
  }
  .nav-more-btn:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
  .nav-more-menu{
    position:absolute;top:calc(100% + 8px);left:0;
    min-width:160px;padding:6px;
    background:rgba(14,24,40,.98);
    border:1px solid var(--line);
    border-radius:12px;
    box-shadow:0 24px 48px -24px rgba(0,0,0,.9);
    display:none;
  }
  .nav-more.is-open .nav-more-menu{display:block;}
  .nav-more-menu a{
    display:block;padding:8px 12px;border-radius:8px;
    font-size:13.5px;color:var(--text-2);
  }
  .nav-more-menu a:hover{background:rgba(47,227,192,.1);color:var(--accent);}

  .nav-right{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .nav-search{
    position:relative;display:flex;align-items:center;gap:8px;
    width:210px;height:38px;padding:0 12px;
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    background:rgba(255,255,255,.03);
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .nav-search svg{width:15px;height:15px;color:var(--text-3);flex:none;}
  .nav-search input{
    width:100%;border:0;outline:none;background:transparent;
    color:var(--text-1);font-size:13px;font-family:inherit;
  }
  .nav-search input::placeholder{color:var(--text-3);}
  .nav-search:focus-within{border-color:rgba(47,227,192,.55);box-shadow:0 0 0 3px rgba(47,227,192,.12);}

  .nav-toggle{
    display:none;
    width:40px;height:40px;
    align-items:center;justify-content:center;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line);
    border-radius:var(--radius-sm);
    color:var(--text-1);
  }
  .nav-toggle svg{width:18px;height:18px;}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:7px;
    height:44px;padding:0 20px;
    border-radius:var(--radius-sm);
    font-size:14px;font-weight:600;
    border:1px solid transparent;
    transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
    white-space:nowrap;
  }
  .btn svg{transition:transform .2s ease;}
  .btn-sm{height:38px;padding:0 15px;font-size:13px;border-radius:9px;}
  .btn-primary{
    background:var(--accent);
    color:#04231D;
    box-shadow:0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  }
  .btn-primary:hover{background:#4DEFD0;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(47,227,192,.6), 0 14px 32px -10px rgba(47,227,192,.65);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:transparent;
    border-color:var(--line-strong);
    color:var(--text-1);
  }
  .btn-ghost:hover{border-color:rgba(47,227,192,.5);color:var(--accent);}
  .btn-text{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--accent);font-size:14px;font-weight:600;
    background:none;border:0;padding:0;
  }
  .btn-text svg{transition:transform .2s ease;}
  .btn-text:hover svg{transform:translateX(3px);}
  .btn:focus-visible,
  .btn-text:focus-visible,
  a:focus-visible,
  button:focus-visible,
  input:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
    border-radius:8px;
  }

  /* ---------- Mobile drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;
    background:rgba(6,10,18,.97);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    display:flex;flex-direction:column;
    padding:20px;
    transform:translateY(-102%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateY(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
  .drawer-close{
    width:40px;height:40px;display:grid;place-items:center;
    background:rgba(255,255,255,.05);border:1px solid var(--line);
    border-radius:var(--radius-sm);color:var(--text-1);
  }
  .drawer-close svg{width:18px;height:18px;}
  .drawer-search{
    display:flex;align-items:center;gap:8px;
    height:46px;padding:0 14px;margin-bottom:22px;
    border:1px solid var(--line);border-radius:var(--radius-sm);
    background:rgba(255,255,255,.04);
  }
  .drawer-search svg{width:16px;height:16px;color:var(--text-3);}
  .drawer-search input{flex:1;border:0;outline:none;background:transparent;color:var(--text-1);font-size:14px;}
  .drawer-nav{display:grid;gap:4px;margin-bottom:26px;}
  .drawer-nav a{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 12px;font-size:15.5px;color:var(--text-2);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--accent);}
  .drawer-actions{display:grid;gap:10px;margin-top:auto;padding-top:8px;}
  .drawer-actions .btn{width:100%;height:46px;}

  /* ---------- Page hero ---------- */
  .page-hero{
    position:relative;
    padding:56px 0 52px;
    border-bottom:1px solid var(--line);
    background:
      radial-gradient(700px 320px at 12% 0%, rgba(47,227,192,.13), transparent 70%),
      linear-gradient(180deg, rgba(6,10,18,.62), rgba(6,10,18,.94)),
      url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    overflow:hidden;
  }
  .page-hero::after{
    content:"";
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
    background-size:24px 24px;
    mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
    -webkit-mask-image:radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
    pointer-events:none;
  }
  .page-hero .container{position:relative;z-index:2;}
  .breadcrumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13px;color:var(--text-3);margin-bottom:22px;
  }
  .breadcrumb a{transition:color .18s ease;}
  .breadcrumb a:hover{color:var(--accent);}
  .breadcrumb .sep{color:var(--text-3);opacity:.6;}
  .breadcrumb .current{color:var(--text-2);}

  .hero-grid{
    display:grid;
    grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
    gap:44px;
    align-items:center;
  }
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 12px;margin-bottom:18px;
    font-size:12px;letter-spacing:.04em;color:var(--accent);
    border:1px solid rgba(47,227,192,.3);
    border-radius:999px;
    background:rgba(47,227,192,.08);
  }
  .hero-eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--accent);}
  .page-hero h1{
    font-size:clamp(28px,3.6vw,44px);
    line-height:1.18;
    letter-spacing:-.01em;
    font-weight:800;
    max-width:19em;
  }
  .hero-lead{
    margin-top:18px;
    font-size:15.5px;
    line-height:1.9;
    color:var(--text-2);
    max-width:620px;
  }
  .hero-meta{
    display:flex;align-items:center;flex-wrap:wrap;gap:14px;
    margin-top:26px;
  }
  .hero-meta .meta-item{
    display:flex;align-items:center;gap:7px;
    font-size:12.5px;color:var(--text-3);
  }
  .hero-meta .meta-item b{
    font-family:var(--mono);font-weight:600;color:var(--accent-2);font-size:13px;
  }
  .hero-figure{
    position:relative;
    border-radius:var(--radius);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    background:var(--panel);
  }
  .hero-figure img{
    width:100%;height:260px;object-fit:cover;
    opacity:.92;
    transition:transform .4s ease;
  }
  .hero-figure:hover img{transform:scale(1.02);}
  .hero-figure::before{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(6,10,18,.1) 0%, rgba(6,10,18,.78) 100%);
    z-index:1;
  }
  .hero-figure-cap{
    position:absolute;left:0;right:0;bottom:0;z-index:2;
    padding:16px 18px;
    display:flex;align-items:center;justify-content:space-between;gap:12px;
  }
  .hero-figure-cap span{
    font-size:12.5px;color:var(--text-2);
  }
  .hero-figure-cap b{
    font-family:var(--mono);font-size:12px;color:var(--accent-2);
    padding:3px 9px;border-radius:999px;
    border:1px solid rgba(255,196,107,.35);
    background:rgba(255,196,107,.1);
  }

  /* ---------- Doc layout ---------- */
  .doc-section{padding:64px 0 80px;}
  .doc-layout{
    display:grid;
    grid-template-columns:220px minmax(0,1fr);
    gap:56px;
    align-items:start;
  }
  .doc-anchors{position:sticky;top:96px;}
  .doc-anchors-title{
    font-size:11.5px;letter-spacing:.16em;color:var(--text-3);
    margin-bottom:14px;text-transform:uppercase;
  }
  .doc-anchor-list{display:grid;gap:2px;}
  .anchor-link{
    display:flex;align-items:baseline;gap:10px;
    padding:9px 12px;
    font-size:14px;color:var(--text-2);
    border-left:2px solid transparent;
    border-radius:0 8px 8px 0;
    transition:color .18s ease, background .18s ease, border-color .18s ease;
  }
  .anchor-link span{
    font-family:var(--mono);font-size:11px;color:var(--text-3);
    transition:color .18s ease;
  }
  .anchor-link:hover{color:var(--text-1);background:rgba(255,255,255,.035);}
  .anchor-link.is-active{
    color:var(--accent);
    border-left-color:var(--accent);
    background:rgba(47,227,192,.07);
  }
  .anchor-link.is-active span{color:var(--accent);}

  .doc-notice{
    margin-top:22px;
    padding:14px;
    border:1px dashed rgba(120,160,200,.24);
    border-radius:12px;
    font-size:12.5px;
    line-height:1.75;
    color:var(--text-3);
  }
  .doc-notice b{color:var(--accent-2);font-weight:600;}

  .doc-body{min-width:0;}
  .doc-intro{
    padding:22px 24px;
    border:1px solid var(--line);
    border-left:3px solid var(--accent);
    border-radius:0 var(--radius) var(--radius) 0;
    background:linear-gradient(120deg, rgba(47,227,192,.08), rgba(14,24,40,.4) 60%);
    margin-bottom:8px;
  }
  .doc-intro p{font-size:15px;line-height:1.85;color:var(--text-2);}
  .doc-intro p + p{margin-top:10px;}

  .clause{
    padding:30px 0;
    border-bottom:1px solid var(--line);
    scroll-margin-top:100px;
  }
  .clause:last-of-type{border-bottom:0;}
  .clause h2{
    display:flex;align-items:baseline;gap:12px;
    font-size:20px;line-height:1.45;font-weight:700;
    margin-bottom:14px;letter-spacing:-.01em;
  }
  .clause h2 em{
    font-family:var(--mono);font-style:normal;
    font-size:13px;font-weight:600;color:var(--accent);
    flex:none;
  }
  .clause p{
    font-size:15.5px;line-height:1.9;color:var(--text-2);
    max-width:760px;margin-bottom:12px;
  }
  .clause p:last-child{margin-bottom:0;}
  .clause-list{
    display:grid;gap:10px;
    max-width:760px;
    margin-top:6px;
  }
  .clause-list li{
    position:relative;
    padding-left:20px;
    font-size:15px;line-height:1.8;color:var(--text-2);
  }
  .clause-list li::before{
    content:"";
    position:absolute;left:0;top:.74em;
    width:6px;height:6px;border-radius:2px;
    background:var(--accent);
    opacity:.85;
  }
  .clause-list li b{color:var(--text-1);font-weight:600;}

  .doc-figure{
    margin:22px 0 6px;
    border-radius:14px;
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--panel);
  }
  .doc-figure img{width:100%;height:220px;object-fit:cover;}
  .doc-figure figcaption{
    padding:10px 14px;
    font-size:12.5px;color:var(--text-3);
    border-top:1px solid var(--line);
    background:rgba(255,255,255,.02);
  }

  .doc-foot{
    margin-top:34px;
    padding:22px 24px;
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:var(--panel);
    box-shadow:var(--shadow-card);
    display:flex;align-items:center;justify-content:space-between;
    gap:20px;flex-wrap:wrap;
  }
  .doc-foot p{
    font-size:14px;line-height:1.8;color:var(--text-2);
    max-width:640px;
  }
  .doc-foot p b{color:var(--text-1);}

  /* ---------- Footer ---------- */
  .site-footer{
    border-top:1px solid var(--line);
    background:var(--bg-800);
    position:relative;
    overflow:hidden;
  }
  .site-footer::before{
    content:"";
    position:absolute;top:-120px;left:50%;transform:translateX(-50%);
    width:780px;height:300px;
    background:radial-gradient(closest-side, rgba(47,227,192,.09), transparent 80%);
    pointer-events:none;
  }
  .footer-main{
    position:relative;
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1fr;
    gap:40px;
    padding:56px 0 40px;
  }
  .footer-brand p{
    margin-top:14px;
    font-size:14px;line-height:1.85;color:var(--text-3);
    max-width:330px;
  }
  .footer-col h3{
    font-size:14px;font-weight:600;color:var(--text-1);
    margin-bottom:14px;
  }
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a,.footer-col span{
    font-size:14px;color:var(--text-3);
    transition:color .18s ease;
  }
  .footer-col a:hover{color:var(--accent);}
  .footer-bottom{
    position:relative;
    border-top:1px solid var(--line);
    padding:20px 0 28px;
    display:flex;align-items:center;justify-content:space-between;
    flex-wrap:wrap;gap:12px;
    font-size:12.5px;color:var(--text-3);
  }
  .footer-bottom .dot-sep{margin:0 8px;opacity:.5;}

  /* ---------- Back to top ---------- */
  .to-top{
    position:fixed;right:20px;bottom:24px;z-index:60;
    width:44px;height:44px;
    display:grid;place-items:center;
    border:1px solid var(--line-strong);
    border-radius:50%;
    background:rgba(14,24,40,.9);
    color:var(--text-2);
    backdrop-filter:blur(8px);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity .25s ease, transform .25s ease, color .2s ease, border-color .2s ease, visibility .25s;
  }
  .to-top svg{width:17px;height:17px;}
  .to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{color:var(--accent);border-color:rgba(47,227,192,.5);}

  /* ---------- Responsive ---------- */
  @media (max-width:1279px){
    .nav-search{display:none;}
    .nav-more{display:block;}
    .nav-links li:nth-child(n+5){display:none;}
  }
  @media (max-width:1023px){
    :root{--header-h:60px;}
    .nav-links,.nav-more,.nav-right{display:none;}
    .nav-toggle{display:flex;margin-left:auto;}
    .hero-grid{grid-template-columns:1fr;gap:28px;}
    .hero-figure img{height:200px;}
    .doc-layout{grid-template-columns:1fr;gap:24px;}
    .doc-anchors{position:static;top:auto;}
    .doc-anchor-list{
      display:flex;
      gap:8px;
      overflow-x:auto;
      padding-bottom:10px;
      scrollbar-width:thin;
    }
    .doc-anchor-list::-webkit-scrollbar{height:4px;}
    .doc-anchor-list::-webkit-scrollbar-thumb{background:rgba(120,160,200,.3);border-radius:4px;}
    .anchor-link{
      flex:none;
      padding:8px 14px;
      border:1px solid var(--line);
      border-radius:999px;
      white-space:nowrap;
      font-size:13px;
    }
    .anchor-link.is-active{border-color:rgba(47,227,192,.55);background:rgba(47,227,192,.1);}
    .doc-notice{display:none;}
    .doc-section{padding:48px 0 56px;}
    .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px;}
  }
  @media (max-width:767px){
    .page-hero{padding:36px 0 40px;}
    .hero-lead{font-size:15px;}
    .hero-meta{gap:10px;}
    .clause{padding:24px 0;}
    .clause h2{font-size:18px;}
    .doc-foot{padding:18px;flex-direction:column;align-items:flex-start;}
    .doc-figure img{height:170px;}
  }
  @media (max-width:519px){
    .logo-name{font-size:14px;}
    .footer-main{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .hero-figure-cap{flex-direction:column;align-items:flex-start;gap:8px;}
    .to-top{right:14px;bottom:16px;width:40px;height:40px;}
  }

/* roulang page: category2 */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --panel-2:#122033;
  --line:rgba(120,160,200,.14);
  --line-soft:rgba(120,160,200,.08);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-soft:rgba(47,227,192,.35);
  --accent-2:#FFC46B;
  --warn:#FF7A7A;
  --r-lg:16px;
  --r-sm:10px;
  --shadow-card: inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-btn: 0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  --mono: ui-monospace,"SFMono-Regular",Consolas,monospace;
  --section-gap:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(47,227,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:600;line-height:1;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .18s ease}
.btn:hover svg{transform:translateX(2px)}
.btn-primary{background:var(--accent);color:#04211B;box-shadow:var(--shadow-btn)}
.btn-primary:hover{background:#4FF0D3;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(47,227,192,.5)}
.btn-ghost{background:transparent;color:var(--text-1);border:1px solid var(--line);box-shadow:none}
.btn-ghost:hover{border-color:rgba(47,227,192,.45);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-size:14px;font-weight:600}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(2px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  height:72px;
  background:rgba(6,10,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background-color .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.92);
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.95);
}
.site-header .container{height:100%}
.nav{display:flex;align-items:center;gap:18px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);
  border:1px solid rgba(47,227,192,.5);
  background:rgba(47,227,192,.08);
  box-shadow:0 0 18px -6px rgba(47,227,192,.7);
}
.logo-mark svg{width:17px;height:17px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--text-1)}
.logo-status{display:inline-flex;align-items:center;gap:5px;font-size:10.5px;color:var(--text-3);letter-spacing:.06em}
.logo-status i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px var(--accent)}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links li a{
  position:relative;display:inline-block;
  padding:8px 11px;border-radius:8px;
  font-size:14.5px;color:var(--text-2);
  transition:color .18s ease, background-color .18s ease;
}
.nav-links li a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-links li a::after{
  content:"";position:absolute;left:11px;bottom:2px;height:2px;width:0;
  background:var(--accent);border-radius:2px;transition:width .22s ease;
}
.nav-links li a:hover::after{width:calc(100% - 22px)}
.nav-links li a.is-active{color:var(--text-1);font-weight:600}
.nav-links li a.is-active::after{width:calc(60% - 11px);left:11px}
.nav-more{position:relative;display:none}
.nav-more-btn{
  display:inline-flex;align-items:center;gap:5px;
  padding:8px 11px;border-radius:8px;font-size:14.5px;color:var(--text-2);
  transition:color .18s ease, background-color .18s ease;
}
.nav-more-btn:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-more-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:150px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:6px;box-shadow:0 24px 48px -24px rgba(0,0,0,.95);
  display:none;
}
.nav-more-menu a{display:block;padding:8px 12px;border-radius:8px;font-size:14px;color:var(--text-2)}
.nav-more-menu a:hover{background:rgba(47,227,192,.1);color:var(--accent)}
.nav-more.is-open .nav-more-menu{display:block}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{
  position:absolute;left:11px;width:15px;height:15px;color:var(--text-3);pointer-events:none;
}
.nav-search input{
  width:220px;height:38px;padding:0 12px 0 34px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:var(--r-sm);
  color:var(--text-1);font-size:13.5px;
  transition:border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;border-color:var(--accent-soft);
  background:rgba(47,227,192,.06);
  box-shadow:0 0 0 3px rgba(47,227,192,.12);
}
.nav-burger{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);color:var(--text-1);
}
.nav-burger:hover{border-color:var(--accent-soft);color:var(--accent)}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(6,10,18,.98);
  backdrop-filter:blur(14px);
  display:flex;flex-direction:column;
  padding:20px;
  transform:translateY(-100%);
  opacity:0;visibility:hidden;
  transition:transform .28s ease, opacity .28s ease, visibility .28s;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-1);
}
.drawer-close:hover{border-color:var(--accent-soft);color:var(--accent)}
.drawer-search{position:relative;display:flex;align-items:center;margin-bottom:20px}
.drawer-search svg{position:absolute;left:13px;width:16px;height:16px;color:var(--text-3)}
.drawer-search input{
  width:100%;height:46px;padding:0 14px 0 38px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  border-radius:var(--r-sm);color:var(--text-1);font-size:14.5px;
}
.drawer-search input:focus{outline:none;border-color:var(--accent-soft);box-shadow:0 0 0 3px rgba(47,227,192,.12)}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-links a{
  padding:13px 12px;border-radius:var(--r-sm);font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--accent);background:rgba(47,227,192,.07)}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-bottom:12px}
.drawer-actions .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-3);transition:color .18s ease}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(120,160,200,.35)}
.breadcrumb .current{color:var(--text-2)}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 72px;
  overflow:hidden;
  background-image:linear-gradient(180deg, rgba(6,10,18,.86) 0%, rgba(6,10,18,.94) 62%, var(--bg-900) 100%), url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(ellipse at 30% 20%, #000 30%, transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 20%, #000 30%, transparent 72%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;top:-140px;left:-80px;width:520px;height:520px;
  background:radial-gradient(circle, rgba(47,227,192,.12), transparent 62%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  border:1px solid rgba(255,196,107,.4);
  background:rgba(255,196,107,.08);
  color:var(--accent-2);font-size:12px;font-weight:600;letter-spacing:.08em;
  margin-bottom:18px;
}
.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--accent-2)}
.page-hero h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.18;
  letter-spacing:-0.02em;
  margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.hero-lead{
  font-size:16.5px;line-height:1.85;color:var(--text-2);
  max-width:620px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta b{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--text-1);letter-spacing:-0.02em}
.hero-meta span{font-size:12px;color:var(--text-3)}

.hero-panel{
  position:relative;
  background:rgba(14,24,40,.62);
  border:1px solid rgba(120,160,200,.22);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card), 0 0 60px -30px rgba(47,227,192,.6);
  overflow:hidden;
}
.hero-panel::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;
  background:radial-gradient(circle, rgba(47,227,192,.16), transparent 70%);
  pointer-events:none;
}
.hero-panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;position:relative;z-index:2}
.hero-panel-head h2{font-size:15px;font-weight:700;letter-spacing:.01em}
.hero-panel-head span{font-family:var(--mono);font-size:11px;color:var(--text-3);letter-spacing:.08em}
.panel-rows{display:flex;flex-direction:column;gap:10px;margin-bottom:18px;position:relative;z-index:2}
.panel-row{
  display:flex;align-items:center;gap:11px;
  padding:11px 13px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-soft);
}
.panel-row .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);flex-shrink:0}
.panel-row .dot.b{background:var(--accent-2);box-shadow:0 0 10px var(--accent-2)}
.panel-row .dot.c{background:var(--text-3);box-shadow:none}
.panel-row p{font-size:13.5px;color:var(--text-2);line-height:1.5}
.panel-row p b{color:var(--text-1);font-weight:600}
.hero-panel-btn{width:100%;position:relative;z-index:2}
.hero-panel-note{margin-top:12px;font-size:11.5px;color:var(--text-3);text-align:center;position:relative;z-index:2}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-gap) 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .kicker{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.18em;
  color:var(--accent);margin-bottom:12px;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--text-2);line-height:1.85}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:38px}
.section-head-row .section-head{margin-bottom:0}

/* ---------- 概览要点卡 ---------- */
.overview-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.overview-grid{grid-template-columns:repeat(3,1fr)}}
.ov-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.ov-card::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:2px;border-radius:2px;
  background:linear-gradient(180deg, var(--accent), rgba(47,227,192,0));
  opacity:.65;
}
.ov-card:hover{border-color:rgba(47,227,192,.35);transform:translateY(-2px);box-shadow:0 26px 52px -30px rgba(0,0,0,.95)}
.ov-icon{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);background:rgba(47,227,192,.08);border:1px solid rgba(47,227,192,.22);
  margin-bottom:16px;
}
.ov-icon svg{width:18px;height:18px}
.ov-card h3{font-size:16.5px;margin-bottom:8px}
.ov-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- 操作步骤 ---------- */
.step-section{
  position:relative;
  background:linear-gradient(180deg, var(--bg-800), var(--bg-900));
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.step-list{display:flex;flex-direction:column;max-width:940px;margin:0 auto}
.step-item{position:relative;padding-bottom:26px}
.step-item:last-child{padding-bottom:0}
.step-item:not(:last-child)::after{
  content:"";position:absolute;left:46px;bottom:0;height:26px;width:0;
  border-left:2px dashed rgba(47,227,192,.3);
}
.step-card{
  position:relative;
  display:grid;grid-template-columns:76px 1fr;gap:22px;align-items:start;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 28px;
  box-shadow:var(--shadow-card), inset 18px 0 34px -34px rgba(47,227,192,.9);
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.step-card:hover{border-color:rgba(47,227,192,.35);transform:translateY(-2px)}
.step-num{
  font-family:var(--mono);font-size:34px;font-weight:700;line-height:1;
  color:var(--accent);letter-spacing:-0.04em;opacity:.85;
  padding-top:4px;
}
.step-body h3{font-size:17.5px;margin-bottom:8px;line-height:1.5}
.step-body p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:12px}
.step-points{display:flex;flex-direction:column;gap:6px}
.step-points li{
  position:relative;padding-left:16px;font-size:13.5px;color:var(--text-3);line-height:1.7;
}
.step-points li::before{
  content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;
  background:rgba(47,227,192,.6);
}
.step-tag{
  display:inline-block;margin-bottom:10px;padding:3px 10px;border-radius:999px;
  border:1px solid var(--line);font-size:11.5px;color:var(--text-3);letter-spacing:.06em;
}

/* ---------- 核对清单数据带 ---------- */
.check-band{
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  background:rgba(10,17,32,.6);
  padding:38px 0;
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0}
@media (min-width:900px){.check-grid{grid-template-columns:repeat(4,1fr)}}
.check-cell{
  padding:6px 18px;
  border-left:1px solid var(--line);
}
.check-cell:first-child{border-left:0;padding-left:0}
@media (max-width:899px){
  .check-cell:nth-child(odd){border-left:0;padding-left:0}
  .check-cell:nth-child(n+3){margin-top:22px;padding-top:22px;border-top:1px solid var(--line-soft)}
}
.check-cell b{
  display:block;font-family:var(--mono);font-size:clamp(24px,3vw,34px);
  font-weight:700;letter-spacing:-0.03em;color:var(--text-1);line-height:1.2;
}
.check-cell b em{font-style:normal;font-size:.5em;color:var(--text-3);margin-left:4px;font-weight:500}
.check-cell span{display:block;margin-top:6px;font-size:12.5px;color:var(--text-3);line-height:1.6}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:34px;padding:18px 20px;
  border:1px dashed rgba(255,196,107,.35);
  border-radius:var(--r-lg);
  background:rgba(255,196,107,.05);
  max-width:940px;margin-left:auto;margin-right:auto;
}
.notice svg{flex-shrink:0;width:18px;height:18px;color:var(--accent-2);margin-top:3px}
.notice p{font-size:13.5px;color:var(--text-2);line-height:1.8}
.notice p b{color:var(--accent-2);font-weight:600}

/* ---------- 图片带 ---------- */
.figure-band{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);box-shadow:var(--shadow-card);
}
@media (min-width:900px){.figure-band{grid-template-columns:6fr 6fr}}
.figure-band img{width:100%;height:100%;object-fit:cover;min-height:260px}
.figure-copy{padding:30px 28px}
.figure-copy h3{font-size:20px;margin-bottom:12px;line-height:1.4}
.figure-copy p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:16px}
.figure-copy .mini-list{display:flex;flex-direction:column;gap:8px}
.figure-copy .mini-list li{font-size:13.5px;color:var(--text-3);padding-left:16px;position:relative;line-height:1.7}
.figure-copy .mini-list li::before{
  content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:rgba(47,227,192,.6);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  position:relative;
  background:rgba(14,24,40,.55);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s ease, background-color .2s ease;
}
.faq-item:hover{border-color:rgba(47,227,192,.28)}
.faq-item[open]{
  border-color:rgba(47,227,192,.42);
  background:rgba(18,32,51,.72);
  box-shadow:0 0 0 1px rgba(47,227,192,.12), 0 24px 48px -34px rgba(0,0,0,.95);
}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);
}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;list-style:none;
  font-size:15.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{
  flex-shrink:0;width:16px;height:16px;color:var(--text-3);
  transition:transform .24s ease, color .24s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--accent)}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--text-2);line-height:1.9}
.faq-body p{margin-bottom:10px}
.faq-body p:last-child{margin-bottom:0}
.faq-body b{color:var(--text-1);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(47,227,192,.24);
  border-radius:var(--r-lg);
  background:linear-gradient(120deg, rgba(14,24,40,.95), rgba(10,17,32,.95));
  padding:38px 32px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;
  background:radial-gradient(circle, rgba(47,227,192,.16), transparent 68%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);line-height:1.4;margin-bottom:8px;position:relative;z-index:2}
.cta-band p{font-size:14px;color:var(--text-2);position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-gap);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(10,17,32,.9), var(--bg-900));
  padding:56px 0 0;
}
.footer-main{
  display:grid;grid-template-columns:1fr;gap:36px;
  padding-bottom:40px;border-bottom:1px solid var(--line-soft);
}
@media (min-width:768px){.footer-main{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-name{font-size:15.5px}
.footer-brand p{font-size:13.5px;color:var(--text-3);line-height:1.9;max-width:320px}
.footer-col h3{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text-1);letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul li a,.footer-col ul li span{font-size:13.5px;color:var(--text-3);line-height:1.7;transition:color .18s ease}
.footer-col ul li a:hover{color:var(--accent)}
.footer-bottom{
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
}
.footer-bottom p{font-size:12.5px;color:var(--text-3);line-height:1.8}
.footer-bottom .dot-sep{margin:0 8px;color:rgba(120,160,200,.3)}

/* ---------- 回到顶部 ---------- */
.back-top{
  position:fixed;right:22px;bottom:22px;z-index:80;
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:rgba(14,24,40,.9);
  color:var(--text-2);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease, transform .22s ease, visibility .22s, border-color .22s ease, color .22s ease;
}
.back-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{border-color:var(--accent-soft);color:var(--accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-search input{width:180px}
}
@media (max-width:1180px){
  .nav-links li:nth-child(n+5){display:none}
  .nav-more{display:block}
}
@media (max-width:1023px){
  :root{--section-gap:64px}
  .site-header{height:60px}
  .nav-links,.nav-more,.nav-search,.nav-right .btn-ghost{display:none}
  .nav-burger{display:inline-flex}
  .nav-right{margin-left:auto}
  .page-hero{padding:36px 0 56px;background-image:linear-gradient(180deg, rgba(6,10,18,.92), var(--bg-900)), url('/assets/images/backpic/back-1.webp')}
  .step-card{grid-template-columns:1fr;gap:12px;padding:22px}
  .step-num{font-size:26px}
  .step-item:not(:last-child)::after{display:none}
  .cta-band{padding:30px 24px}
}
@media (max-width:767px){
  :root{--section-gap:48px}
  body{font-size:15.5px}
  .hero-lead{font-size:15.5px}
  .hero-meta{gap:20px}
  .check-cell{padding:0 14px}
  .figure-copy{padding:24px 20px}
  .faq-item summary{padding:16px 18px;font-size:14.5px}
  .faq-body{padding:0 18px 18px}
  .footer-main{gap:28px}
}
@media (max-width:519px){
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .step-card{padding:20px 18px}
  .hero-panel{padding:18px}
}

/* roulang page: category4 */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --line:rgba(120,160,200,.14);
  --line-strong:rgba(120,160,200,.28);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-2:#FFC46B;
  --warn:#FF7A7A;
  --r-card:16px;
  --r-ctl:10px;
  --r-pill:999px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --font-sans:-apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono:ui-monospace, "SFMono-Regular", Consolas, monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(47,227,192,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 32px} }

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(6,10,18,.72);
  transition:background .25s ease, backdrop-filter .25s ease, border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.86);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:26px;height:72px}
@media (max-width:1023px){ .nav{height:60px;gap:14px} }

.logo{display:inline-flex;align-items:center;gap:10px;flex:none;color:var(--text-1)}
.logo-mark{width:26px;height:26px;color:var(--accent);display:inline-flex;flex:none;filter:drop-shadow(0 0 8px rgba(47,227,192,.45))}
.logo-mark svg{width:100%;height:100%}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-name{font-size:15px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.logo-status{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--text-3);letter-spacing:.02em}
.logo-status i{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9);display:inline-block}

.nav-links{display:flex;align-items:center;gap:22px;margin-left:6px}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:14px;color:var(--text-2);transition:color .2s ease}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:60%;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--text-1);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}

.nav-more{position:relative;display:none}
.nav-more-btn{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 10px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-pill);
  color:var(--text-2);font-size:13px;cursor:pointer;transition:.2s;
}
.nav-more-btn:hover{color:var(--text-1);border-color:var(--line-strong)}
.nav-more-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:150px;padding:8px;
  background:rgba(10,17,32,.96);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-card);backdrop-filter:blur(14px);
  display:none;flex-direction:column;gap:2px;
}
.nav-more.is-open .nav-more-menu{display:flex}
.nav-more-menu a{padding:8px 10px;border-radius:8px;font-size:13px;color:var(--text-2);transition:.18s}
.nav-more-menu a:hover{background:rgba(47,227,192,.08);color:var(--text-1)}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-search{position:relative;width:220px}
.nav-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-3)}
.nav-search input{
  width:100%;height:38px;padding:0 12px 0 34px;font-size:13px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-ctl);
  color:var(--text-1);transition:.22s;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;border-color:rgba(47,227,192,.55);
  box-shadow:0 0 0 3px rgba(47,227,192,.12);
  background:rgba(255,255,255,.06);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--r-ctl);
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .22s ease, background .2s ease, border-color .2s ease, color .2s ease, filter .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 14px;font-size:13px}
.btn-primary{
  background:var(--accent);color:#04211C;
  box-shadow:0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(47,227,192,.55);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--accent);
  background:none;border:0;padding:0;cursor:pointer;transition:gap .2s ease,color .2s ease;
}
.btn-link:hover{gap:10px;color:#7BF3DE}
.btn-link svg{width:14px;height:14px}

.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-ctl);color:var(--text-1);cursor:pointer;
}
.nav-toggle svg{width:18px;height:18px}

@media (max-width:1279px){
  .nav-links li:nth-child(n+5){display:none}
  .nav-more{display:block}
  .nav-search{width:180px}
}
@media (max-width:1023px){
  .nav-links,.nav-more,.nav-search,.nav-right .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .nav-right .btn-primary{height:34px;padding:0 12px;font-size:12px}
  .logo-name{font-size:14px}
}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:rgba(4,8,14,.72);backdrop-filter:blur(6px);
}
.mobile-drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(360px,88vw);height:100%;
  background:#08101E;border-left:1px solid var(--line);
  padding:18px 20px 28px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
  animation:drawerIn .26s ease;
}
@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}
.drawer-close{
  width:36px;height:36px;border-radius:10px;background:transparent;
  border:1px solid var(--line);color:var(--text-2);cursor:pointer;font-size:18px;line-height:1;
}
.drawer-close:hover{color:var(--text-1);border-color:var(--line-strong)}
.drawer-search{position:relative}
.drawer-search input{
  width:100%;height:42px;padding:0 12px;border-radius:10px;font-size:14px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);
}
.drawer-search input::placeholder{color:var(--text-3)}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 10px;border-radius:10px;font-size:14px;color:var(--text-2);transition:.18s;
}
.drawer-links a:hover{background:rgba(47,227,192,.08);color:var(--text-1)}
.drawer-links a.is-active{color:var(--accent);background:rgba(47,227,192,.08)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
@media (max-width:1023px){ .section{padding:64px 0} }
@media (max-width:639px){ .section{padding:48px 0} }

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;font-family:var(--font-mono);
}
.eyebrow::before{content:"";width:18px;height:1px;background:currentColor;opacity:.7}

.h2{font-size:clamp(24px,2.6vw,34px);line-height:1.25;letter-spacing:-.01em;font-weight:700}
.lead{color:var(--text-2);font-size:15px;max-width:760px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(900px 420px at 78% 0%, rgba(47,227,192,.10), transparent 62%),
    radial-gradient(700px 360px at 8% 100%, rgba(47,227,192,.06), transparent 60%),
    var(--bg-900);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.18;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(600px 320px at 30% 10%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(600px 320px at 30% 10%, #000 0%, transparent 78%);
}
.hero-inner{position:relative;z-index:2;padding:72px 0 64px}
@media (max-width:639px){ .hero-inner{padding:48px 0 44px} }

.hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.15;letter-spacing:-.01em;font-weight:800;
  margin:16px 0 14px;max-width:16em;
}
.hero h1 .hl{color:var(--accent)}
.hero-sub{color:var(--text-2);font-size:16px;max-width:640px}

/* 页内搜索 */
.faq-search{
  margin-top:28px;max-width:720px;position:relative;
}
.faq-search input{
  width:100%;height:48px;padding:0 44px 0 44px;border-radius:var(--r-ctl);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text-1);font-size:15px;
  backdrop-filter:blur(10px);
  transition:border-color .2s ease, box-shadow .22s ease, background .2s ease;
}
.faq-search input::placeholder{color:var(--text-3)}
.faq-search input:focus{
  outline:none;border-color:rgba(47,227,192,.6);
  box-shadow:0 0 0 3px rgba(47,227,192,.14), 0 0 24px -6px rgba(47,227,192,.5);
  background:rgba(255,255,255,.07);
}
.faq-search .ico{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--text-3)}
.faq-search .clear{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  background:transparent;color:var(--text-3);cursor:pointer;display:none;
  align-items:center;justify-content:center;font-size:14px;line-height:1;
}
.faq-search .clear:hover{color:var(--text-1);border-color:var(--line-strong)}
.faq-search.has-value .clear{display:flex}

.quick-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.quick-tags .tag-btn{
  height:30px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--text-2);font-size:12.5px;cursor:pointer;transition:.2s;
}
.quick-tags .tag-btn:hover{color:var(--accent);border-color:rgba(47,227,192,.45);background:rgba(47,227,192,.06)}

/* ============ 数据带 ============ */
.stat-band{border-bottom:1px solid var(--line);background:var(--bg-800)}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-cell{
  padding:26px 20px;border-right:1px solid var(--line);
}
.stat-cell:last-child{border-right:0}
.stat-num{font-family:var(--font-mono);font-size:clamp(24px,3vw,34px);font-weight:600;color:var(--text-1);letter-spacing:-.02em;line-height:1.1}
.stat-num span{color:var(--accent)}
.stat-label{font-size:12.5px;color:var(--text-3);margin-top:6px;letter-spacing:.02em}
@media (max-width:767px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-cell{border-bottom:1px solid var(--line)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-child(n+3){border-bottom:0}
  .stat-cell{padding:20px 16px}
}

/* ============ FAQ ============ */
.faq-groups{display:flex;flex-direction:column;gap:56px;margin-top:48px}
.faq-group-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.faq-group-title{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;letter-spacing:-.01em}
.faq-group-title::before{content:"";width:3px;height:20px;border-radius:2px;background:var(--accent);box-shadow:0 0 12px rgba(47,227,192,.6)}
.faq-group-count{font-family:var(--font-mono);font-size:12px;color:var(--text-3)}

.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;align-items:start}
@media (max-width:1023px){ .faq-list{grid-template-columns:1fr} }

.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(14,24,40,.55);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card);
  transition:border-color .22s ease, background .22s ease, transform .2s ease;
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(47,227,192,.24)}
.faq-item.is-open{border-color:rgba(47,227,192,.42);background:rgba(14,24,40,.78)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text-1);font-size:15px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:#fff}
.faq-q .q-ico{
  flex:none;width:22px;height:22px;margin-top:2px;color:var(--text-3);
  transition:transform .26s ease,color .22s ease;
}
.faq-item.is-open .q-ico{transform:rotate(180deg);color:var(--accent)}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows .28s ease;
}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{
  padding:0 20px 20px 20px;margin:0;color:var(--text-2);font-size:14px;line-height:1.85;
  border-top:1px dashed transparent;
}
.faq-item.is-open .faq-a p{border-top-color:var(--line)}

.faq-empty{
  display:none;margin-top:32px;padding:44px 24px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:rgba(14,24,40,.4);
}
.faq-empty.is-visible{display:block}
.faq-empty .ico{width:34px;height:34px;margin:0 auto 12px;color:var(--text-3)}
.faq-empty p{color:var(--text-2);font-size:14px}
.faq-empty .btn{margin-top:16px}
.faq-group.is-hidden{display:none}

/* ============ 图文补充 ============ */
.split{
  display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;
}
@media (max-width:1023px){ .split{grid-template-columns:1fr;gap:28px} }
.split-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/11;background:var(--panel);
}
.split-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.split-media:hover img{transform:scale(1.02)}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 45%,rgba(6,10,18,.72) 100%);
}
.prepare-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.prepare-item{
  display:flex;gap:14px;padding:16px 18px;
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04), 0 0 0 1px rgba(47,227,192,.06);
  transition:border-color .2s ease, transform .2s ease;
}
.prepare-item:hover{border-color:rgba(47,227,192,.3);transform:translateY(-1px)}
.prepare-num{
  flex:none;font-family:var(--font-mono);font-size:14px;color:var(--accent);
  width:28px;line-height:1.7;
}
.prepare-item h4{font-size:15px;font-weight:600;margin-bottom:2px}
.prepare-item p{font-size:13.5px;color:var(--text-2);line-height:1.7}

/* ============ CTA 条 ============ */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:
    radial-gradient(600px 260px at 20% 50%, rgba(47,227,192,.10), transparent 70%),
    var(--bg-800);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:44px 0;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;letter-spacing:-.01em}
.cta-inner p{color:var(--text-2);font-size:14px;margin-top:6px;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-800);border-top:1px solid var(--line);position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(700px 300px at 80% 0%, rgba(47,227,192,.07), transparent 65%);
}
.footer-main{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px;
  padding:56px 0 40px;
}
@media (max-width:1023px){ .footer-main{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px} }
@media (max-width:599px){ .footer-main{grid-template-columns:1fr;gap:28px} }
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-name{font-size:15px;font-weight:700}
.footer-brand p{color:var(--text-2);font-size:13.5px;line-height:1.85;max-width:340px}
.footer-col h3{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  position:relative;z-index:2;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:18px 0 26px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:12.5px;color:var(--text-3);line-height:1.7}
.dot-sep{margin:0 8px;opacity:.5}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:80;
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(10,17,32,.9);border:1px solid var(--line-strong);color:var(--text-2);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s ease, transform .25s ease, visibility .25s, color .2s, border-color .2s;
  backdrop-filter:blur(10px);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--accent);border-color:rgba(47,227,192,.5)}
.to-top svg{width:16px;height:16px}

/* roulang page: category5 */
:root{
  --bg-900:#060A12;
  --bg-800:#0A1120;
  --panel:#0E1828;
  --line:rgba(120,160,200,.14);
  --line-strong:rgba(120,160,200,.28);
  --text-1:#E9F1FA;
  --text-2:#94A7BF;
  --text-3:#5F738C;
  --accent:#2FE3C0;
  --accent-2:#FFC46B;
  --warn:#FF7A7A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.05), 0 24px 48px -28px rgba(0,0,0,.9);
  --shadow-glow:0 0 0 1px rgba(47,227,192,.45), 0 10px 28px -10px rgba(47,227,192,.55);
  --font-sans:-apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono:ui-monospace, "SFMono-Regular", Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-900);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{letter-spacing:-0.01em;line-height:1.2}
::selection{background:rgba(47,227,192,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ========== 顶部导航 ========== */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(6,10,18,.72);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.82);
  border-bottom-color:var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.nav{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:28px;height:28px;display:grid;place-items:center;
  color:var(--accent);border:1px solid rgba(47,227,192,.38);
  border-radius:9px;background:rgba(47,227,192,.06);
}
.logo-mark svg{width:17px;height:17px}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-name{font-size:16px;font-weight:600;letter-spacing:-0.01em}
.logo-status{display:flex;align-items:center;gap:5px;font-size:11px;color:var(--text-3)}
.logo-status i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9)}
.nav-links{display:flex;align-items:center;gap:22px;flex:1}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);border-radius:2px;transition:width .25s ease;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.is-active::after{width:60%}
.nav-links a.is-active{color:var(--accent)}
.nav-more{position:relative;display:none}
.nav-more-btn{display:inline-flex;align-items:center;gap:4px;padding:6px 0;font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.nav-more-btn:hover,.nav-more-btn.has-current{color:var(--accent)}
.nav-more-menu{
  position:absolute;top:calc(100% + 14px);right:0;min-width:158px;padding:6px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:0 24px 48px -28px rgba(0,0,0,.95);display:none;flex-direction:column;gap:2px;
}
.nav-more.is-open .nav-more-menu{display:flex}
.nav-more-menu a{padding:9px 12px;border-radius:8px;font-size:14px;color:var(--text-2);transition:background .2s,color .2s}
.nav-more-menu a:hover{background:rgba(47,227,192,.08);color:var(--accent)}
.nav-more-menu a.is-active{color:var(--accent);background:rgba(47,227,192,.06)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{position:relative;display:none}
.nav-search input{
  width:216px;height:38px;padding:0 12px 0 34px;font-size:13px;
  color:var(--text-1);background:rgba(14,24,40,.72);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  outline:none;transition:border-color .2s,box-shadow .2s;
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:rgba(47,227,192,.6);box-shadow:0 0 0 3px rgba(47,227,192,.12)}
.nav-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--text-3);pointer-events:none}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1);
}
.nav-toggle:hover{border-color:rgba(47,227,192,.4);color:var(--accent)}

/* ========== 按钮 ========== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn svg{transition:transform .2s ease}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:9px}
.btn-lg{height:48px;padding:0 24px;font-size:15px}
.btn-primary{background:var(--accent);color:#04140F;box-shadow:var(--shadow-glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{border-color:rgba(47,227,192,.5);color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);transition:color .2s}
.btn-text svg{transition:transform .2s ease}
.btn-text:hover{color:var(--accent)}
.btn-text:hover svg{transform:translateX(2px)}

/* ========== 首屏 ========== */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(600px 320px at 22% 20%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(600px 320px at 22% 20%,#000 30%,transparent 78%);
}
.page-hero .container{position:relative;z-index:2}
.hero-inner{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:48px 0 56px;
}
@media (min-width:1024px){
  .hero-inner{grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:64px 0 72px}
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:var(--text-3);transition:color .2s}
.crumbs a:hover{color:var(--accent)}
.crumbs .sep{color:rgba(120,160,200,.35)}
.crumbs .current{color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(47,227,192,.28);background:rgba(47,227,192,.07);
  font-size:12.5px;color:var(--accent);letter-spacing:.02em;margin-bottom:20px;
}
.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(47,227,192,.9)}
.hero-title{
  font-size:clamp(30px,4vw,50px);line-height:1.15;font-weight:700;letter-spacing:-0.01em;
  margin-bottom:18px;
}
.hero-title .hl{color:var(--accent)}
.hero-sub{font-size:16px;line-height:1.85;color:var(--text-2);max-width:600px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:26px}
.hero-meta li{display:flex;flex-direction:column;gap:2px}
.hero-meta .num{font-family:var(--font-mono);font-size:22px;color:var(--text-1);letter-spacing:-0.02em}
.hero-meta .lbl{font-size:12px;color:var(--text-3)}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(14,24,40,.62);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.4;
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(6,10,18,.86) 0%,rgba(8,14,24,.94) 60%,rgba(10,17,32,.9) 100%);
}
.hero-card > *{position:relative;z-index:2}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.hero-card-head h2{font-size:15px;font-weight:600;color:var(--text-1);letter-spacing:0}
.hero-card-head span{font-family:var(--font-mono);font-size:12px;color:var(--text-3)}
.hero-card-list{display:flex;flex-direction:column;gap:1px;background:rgba(120,160,200,.1);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:20px}
.hero-card-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 14px;background:rgba(10,17,32,.86);font-size:13.5px;color:var(--text-2);
}
.hero-card-list li b{color:var(--text-1);font-weight:500}
.hero-card-list .state{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--accent)}
.hero-card-list .state i{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.hero-card .btn{width:100%}

/* ========== 区块通用 ========== */
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:80px 0}}
.section-alt{background:var(--bg-800);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head .eyebrow{margin-bottom:14px}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700}
.section-desc{margin-top:12px;font-size:15px;color:var(--text-2);max-width:640px;line-height:1.85}

/* ========== 时间线 ========== */
.timeline-toolbar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px}
.filter-chip{
  padding:7px 16px;border-radius:999px;font-size:13px;
  border:1px solid var(--line);color:var(--text-2);
  transition:border-color .2s,color .2s,background .2s;
}
.filter-chip:hover{border-color:rgba(47,227,192,.4);color:var(--text-1)}
.filter-chip.is-on{background:rgba(47,227,192,.1);border-color:rgba(47,227,192,.5);color:var(--accent)}
.timeline{position:relative;padding-left:30px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:7px;top:10px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(47,227,192,.55),rgba(120,160,200,.16) 70%,transparent);
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-30px;top:9px;width:15px;height:15px;border-radius:50%;
  background:var(--bg-900);border:1px solid rgba(47,227,192,.5);
  box-shadow:0 0 0 4px rgba(47,227,192,.07);
}
.tl-item.is-current::before{background:var(--accent);border-color:var(--accent);box-shadow:0 0 16px rgba(47,227,192,.75)}
.tl-date{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12.5px;color:var(--text-3);
  letter-spacing:.02em;margin-bottom:8px;
}
.tl-date .tag{
  font-family:var(--font-sans);font-size:11.5px;padding:2px 9px;border-radius:999px;
  border:1px solid rgba(255,196,107,.35);color:var(--accent-2);letter-spacing:0;
}
.tl-card{
  position:relative;padding:18px 20px;border-radius:var(--radius-md);
  background:var(--panel);border:1px solid var(--line);
  border-left:2px solid rgba(47,227,192,.35);
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{border-color:rgba(47,227,192,.35);border-left-color:var(--accent);transform:translateY(-2px)}
.tl-card h3{font-size:17px;font-weight:600;margin-bottom:8px;line-height:1.5}
.tl-card p{font-size:14.5px;color:var(--text-2);line-height:1.85}
.tl-card .btn-text{margin-top:12px}
.tl-empty{
  display:none;padding:40px 24px;text-align:center;border:1px dashed rgba(120,160,200,.3);
  border-radius:var(--radius-md);color:var(--text-3);font-size:14px;
}
.tl-empty.is-show{display:block}

/* ========== 更新类型卡片 ========== */
.type-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.type-grid{grid-template-columns:repeat(3,1fr)}}
.type-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--radius-lg);border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease;
}
.type-card:hover{border-color:rgba(47,227,192,.35);transform:translateY(-2px)}
.type-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-800)}
.type-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;opacity:.82}
.type-card:hover .thumb img{transform:scale(1.03)}
.type-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.15),rgba(14,24,40,.85));
}
.type-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.type-card h3{font-size:17px;font-weight:600}
.type-card p{font-size:14px;color:var(--text-2);line-height:1.85}
.type-card .btn-text{margin-top:auto;padding-top:6px}

/* ========== 提示条 ========== */
.notice-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  padding:24px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:linear-gradient(120deg,rgba(47,227,192,.07),rgba(14,24,40,.6) 55%);
}
.notice-band h3{font-size:17px;font-weight:600;margin-bottom:6px}
.notice-band p{font-size:14px;color:var(--text-2);max-width:640px;line-height:1.85}

/* ========== FAQ ========== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px 20px 0;cursor:pointer;list-style:none;
  font-size:15.5px;color:var(--text-1);transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--accent)}
.faq-item summary .ic{
  flex-shrink:0;width:22px;height:22px;display:grid;place-items:center;
  border-radius:50%;border:1px solid var(--line);color:var(--text-2);
  transition:transform .25s ease,border-color .25s,color .25s;
}
.faq-item[open] summary{color:var(--accent)}
.faq-item[open] summary .ic{transform:rotate(180deg);border-color:rgba(47,227,192,.5);color:var(--accent)}
.faq-body{padding:0 0 22px;font-size:14.5px;color:var(--text-2);line-height:1.9;border-left:3px solid transparent;padding-left:0;transition:padding .2s}
.faq-item[open] .faq-body{border-left-color:var(--accent);padding-left:16px}

/* ========== 底部 CTA ========== */
.end-cta{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--bg-800);
  padding:36px 24px;text-align:center;
}
.end-cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(500px 220px at 50% 0%,rgba(47,227,192,.12),transparent 70%);
  pointer-events:none;
}
.end-cta > *{position:relative;z-index:2}
.end-cta h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;margin-bottom:12px}
.end-cta p{font-size:14.5px;color:var(--text-2);max-width:620px;margin:0 auto 24px}
.end-cta .actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ========== 页脚 ========== */
.site-footer{border-top:1px solid var(--line);background:var(--bg-800);margin-top:0;padding:56px 0 24px;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(600px 260px at 12% 0%,rgba(47,227,192,.07),transparent 70%);
}
.site-footer .container{position:relative;z-index:2}
.footer-main{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid var(--line)}
@media (min-width:768px){.footer-main{grid-template-columns:1fr 1fr;gap:36px}}
@media (min-width:1024px){.footer-main{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.footer-brand .logo{margin-bottom:14px}
.footer-brand .logo-name{font-size:15px}
.footer-brand p{font-size:13.5px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer-col h3{font-size:13px;font-weight:600;color:var(--text-1);margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a,.footer-col span{font-size:13.5px;color:var(--text-2);transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding-top:20px}
.footer-bottom p{font-size:12.5px;color:var(--text-3);line-height:1.8}
.footer-bottom .dot-sep{margin:0 8px;color:rgba(120,160,200,.3)}

/* ========== 回到顶部 ========== */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:80;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);background:rgba(14,24,40,.9);
  color:var(--text-2);backdrop-filter:blur(8px);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .25s,visibility .25s,transform .25s,color .2s,border-color .2s;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--accent);border-color:rgba(47,227,192,.5)}

/* ========== 移动抽屉 ========== */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;
  background:rgba(6,10,18,.96);backdrop-filter:blur(12px);
  overflow-y:auto;padding:18px 20px 40px;
}
.drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--line);
  display:grid;place-items:center;color:var(--text-1);
}
.drawer-close:hover{color:var(--accent);border-color:rgba(47,227,192,.4)}
.drawer-search{position:relative;margin-bottom:22px}
.drawer-search input{
  width:100%;height:44px;padding:0 12px 0 38px;font-size:14px;
  background:rgba(14,24,40,.85);border:1px solid var(--line);
  border-radius:var(--radius-sm);color:var(--text-1);outline:none;
}
.drawer-search input:focus{border-color:rgba(47,227,192,.6);box-shadow:0 0 0 3px rgba(47,227,192,.12)}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-3)}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-links a{
  padding:13px 12px;border-radius:var(--radius-sm);font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(120,160,200,.08);
}
.drawer-links a:hover,.drawer-links a.is-active{color:var(--accent);background:rgba(47,227,192,.06)}
.drawer-actions{display:flex;flex-direction:column;gap:10px}
.drawer-actions .btn{width:100%}

/* 断点：频道收缩 */
@media (max-width:1439px){
  .nav-links li:nth-child(n+5){display:none}
  .nav-more{display:block}
}
@media (min-width:1440px){
  .nav-more{display:none}
}
@media (max-width:1240px){
  .nav-search{display:none}
}
@media (min-width:1241px){
  .nav-search{display:block}
}
@media (max-width:1080px){
  .nav-links,.nav-more{display:none}
  .nav-right .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .nav{height:60px;gap:12px}
  .site-header .logo-name{font-size:15px}
}
@media (max-width:520px){
  .nav-right .btn-primary.btn-sm{height:34px;padding:0 12px;font-size:12.5px}
  .hero-inner{padding:36px 0 40px}
  .hero-meta{gap:10px 20px}
  .hero-meta .num{font-size:19px}
  .hero-card{padding:18px}
  .timeline{padding-left:24px}
  .tl-item::before{left:-24px;width:13px;height:13px}
  .timeline::before{left:6px}
  .notice-band{padding:18px}
  .end-cta{padding:28px 18px}
  .footer-bottom{flex-direction:column}
}