/* roulang page: index */
:root{
  --ink-950:#060A12;
  --ink-900:#0B1220;
  --ink-800:#131C2E;
  --line:rgba(255,255,255,.10);
  --brand-500:#1FE0B8;
  --brand-600:#12B394;
  --violet-500:#7C5CFF;
  --amber-500:#FFC24B;
  --text-hi:#F2F6FF;
  --text-mid:#A8B6CC;
  --text-lo:#6E7C93;
  --danger:#FF6B6B;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow-card:0 8px 32px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;letter-spacing:-.005em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;
}
::selection{background:rgba(31,224,184,.28);color:var(--text-hi)}

/* ---------- 容器与节奏 ---------- */
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container-x{max-width:1280px}}
@media (max-width:1023px){.container-x{padding:0 24px}}
@media (max-width:639px){.container-x{padding:0 20px}}
.section{padding:96px 0}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:56px 0}}
.hairline{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 通用组件 ---------- */
.glass{
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;line-height:1;cursor:pointer;border:0;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{
  border-radius:999px;padding:14px 26px;color:#06121A;
  background:linear-gradient(135deg,#1FE0B8,#12B394);
  box-shadow:0 0 0 1px rgba(31,224,184,.35),0 12px 32px rgba(31,224,184,.20);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,224,184,.5),0 16px 40px rgba(31,224,184,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,184,.4),0 8px 20px rgba(31,224,184,.18)}
.btn-primary[disabled]{opacity:.65;cursor:not-allowed;transform:none}
.btn-ghost{
  border-radius:var(--radius-sm);padding:13px 20px;color:var(--text-hi);
  border:1px solid var(--line);background:transparent;
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;background:none;border:0;
  color:var(--brand-500);font-weight:500;font-size:15px;cursor:pointer;padding:0;
}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(4px)}
.btn-link:hover{color:#5BF0D2}
.spinner{
  width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(6,18,26,.28);border-top-color:#06121A;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;line-height:1;letter-spacing:.02em;white-space:nowrap;
}
.badge-violet{background:rgba(124,92,255,.14);color:#B4A3FF}
.badge-brand{background:rgba(31,224,184,.14);color:var(--brand-500)}
.badge-amber{background:rgba(255,194,75,.16);color:var(--amber-500)}
.badge-muted{background:rgba(255,255,255,.07);color:var(--text-mid)}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;letter-spacing:.08em;
  color:var(--brand-500);background:rgba(31,224,184,.10);
  border:1px solid rgba(31,224,184,.25);
}
.sec-title{font-size:clamp(24px,2.8vw,36px);line-height:1.28;margin:14px 0 12px}
.sec-lead{font-size:15px;line-height:1.8;color:var(--text-mid);max-width:760px;margin:0 0 40px}
.mono{font-family:"Inter","DIN Alternate","SFMono-Regular",Menlo,monospace;font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:14px 0;transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 14px 34px rgba(0,0,0,.5)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  padding:10px 14px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(31,224,184,.22),rgba(124,92,255,.22));
  border:1px solid rgba(31,224,184,.36);color:var(--brand-500);
}
.brand-text b{display:block;font-size:16px;font-weight:700;color:var(--text-hi);letter-spacing:.02em;line-height:1.25}
.brand-text span{display:block;font-size:11px;color:var(--text-lo);letter-spacing:.16em;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:9px;height:44px;padding:0 12px;
  border-radius:var(--radius-sm);border:1px solid transparent;
  color:var(--text-mid);font-size:14px;white-space:nowrap;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-item:hover{transform:translateY(-1px);border-color:rgba(31,224,184,.45);color:var(--text-hi);background:rgba(255,255,255,.04)}
.nav-item.active{color:var(--text-hi);background:rgba(31,224,184,.08);border-color:rgba(31,224,184,.35)}
.nav-item.active::before{
  content:"";position:absolute;left:-9px;top:50%;transform:translateY(-50%);
  width:2px;height:22px;border-radius:2px;background:var(--brand-500);
}
.nav-ico{
  width:32px;height:32px;border-radius:12px;display:grid;place-items:center;
  background:rgba(124,92,255,.16);color:#B9A8FF;flex-shrink:0;
  transition:background .18s ease,color .18s ease;
}
.nav-item:hover .nav-ico{background:rgba(124,92,255,.28);color:#CFC2FF}
.nav-item.active .nav-ico{background:rgba(31,224,184,.18);color:var(--brand-500)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-actions .btn-primary{padding:11px 20px;font-size:14px}
.nav-text-link{font-size:14px;color:var(--text-mid);transition:color .18s ease}
.nav-text-link:hover{color:var(--brand-500)}
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;color:var(--text-hi);cursor:pointer;
}
.mobile-panel{
  display:none;position:fixed;inset:0;z-index:90;
  background:rgba(6,10,18,.97);backdrop-filter:blur(8px);
  padding:88px 20px 24px;overflow-y:auto;
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.mobile-panel.open{opacity:1;pointer-events:auto}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}
.mobile-card{
  display:flex;flex-direction:column;gap:10px;padding:16px;
  border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--ink-800);color:var(--text-hi);font-size:14px;
}
.mobile-card.active{border-color:rgba(31,224,184,.4);background:rgba(31,224,184,.08)}
.mobile-card .nav-ico{width:34px;height:34px}
.mobile-close{
  position:absolute;top:18px;right:20px;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-hi);
  display:grid;place-items:center;cursor:pointer;
}
@media (max-width:1199px){
  .nav-item span.label{display:none}
  .nav-item{padding:0 8px}
}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .hamburger{display:flex;margin-left:auto}
  .mobile-panel{display:block}
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 0;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;left:-10%;width:520px;height:520px;
  background:radial-gradient(circle,rgba(31,224,184,.10),transparent 66%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.hero-title{font-size:clamp(30px,4.4vw,52px);line-height:1.18;letter-spacing:-.01em;margin:20px 0 18px}
.hl{color:var(--brand-500)}
.hero-sub{font-size:18px;line-height:1.8;color:var(--text-mid);max-width:580px;margin-bottom:30px}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:38px;flex-wrap:wrap}
.hero-stat b{display:block;font-size:22px;color:var(--text-hi);font-weight:700}
.hero-stat span{font-size:13px;color:var(--text-lo)}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line)}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(165deg,rgba(6,10,18,.30),rgba(6,10,18,.86));
}
.hero-info{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:3;
  border-radius:var(--radius-sm);padding:16px;
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.hero-info div span{display:block;font-size:12px;color:var(--text-lo);margin-bottom:4px}
.hero-info div b{display:block;font-size:15px;color:var(--text-hi);font-weight:600}

.path-band{position:relative;padding:44px 0 0}
.path-line{height:1px;background:linear-gradient(90deg,rgba(31,224,184,0),rgba(31,224,184,.65),rgba(124,92,255,.5),rgba(124,92,255,0))}
.path-nodes{display:flex;justify-content:space-between;margin-top:-11px;padding:0 6%}
.path-node{display:flex;flex-direction:column;align-items:center;gap:8px;width:33.33%}
.path-dot{
  width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  background:var(--ink-900);border:1px solid rgba(31,224,184,.45);color:var(--brand-500);
}
.path-node span{font-size:13px;color:var(--text-mid)}

/* ---------- 栏目入口 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{
  display:flex;flex-direction:column;gap:14px;padding:26px;
  border-radius:var(--radius-lg);background:var(--ink-800);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(31,224,184,.35)}
.entry-ico{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(124,92,255,.16);color:#B9A8FF;
}
.entry-card h3{font-size:19px}
.entry-card p{font-size:14.5px;line-height:1.8;color:var(--text-mid)}

/* ---------- 权益阶梯 ---------- */
.ladder{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start}
.step-card{
  position:relative;padding:24px;border-radius:var(--radius-lg);
  background:var(--ink-800);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-2px);border-color:rgba(31,224,184,.3)}
.step-card:nth-child(1){margin-top:0}
.step-card:nth-child(2){margin-top:24px}
.step-card:nth-child(3){margin-top:48px}
.step-card:nth-child(4){margin-top:72px}
.step-card.current{border-color:rgba(255,194,75,.5);box-shadow:0 0 0 1px rgba(255,194,75,.22),var(--shadow-card)}
.step-no{font-size:13px;letter-spacing:.16em;color:var(--text-lo)}
.step-card h3{font-size:19px;margin:10px 0 14px}
.step-list li{display:flex;gap:8px;font-size:14px;line-height:1.75;color:var(--text-mid);margin-bottom:8px}
.step-list li i{
  flex-shrink:0;width:6px;height:6px;border-radius:2px;margin-top:10px;
  background:var(--brand-500);display:block;
}
.step-card .btn-link{margin-top:14px;font-size:14px}
@media (max-width:1023px){
  .ladder{grid-template-columns:1fr;gap:0;padding-left:26px}
  .ladder::before{
    content:"";position:absolute;left:5px;top:12px;bottom:12px;width:2px;
    background:linear-gradient(180deg,rgba(31,224,184,.55),rgba(124,92,255,.35),rgba(124,92,255,0));
  }
  .step-card{margin-top:0 !important;margin-bottom:16px;border-radius:var(--radius-sm)}
  .step-card::after{
    content:"";position:absolute;left:-27px;top:28px;width:12px;height:12px;border-radius:50%;
    background:var(--brand-500);box-shadow:0 0 0 4px rgba(31,224,184,.15);
  }
}

/* ---------- 对比矩阵 ---------- */
.matrix-wrap{position:relative;border-radius:var(--radius-lg);border:1px solid var(--line);background:var(--ink-800);box-shadow:var(--shadow-card);overflow:hidden}
.matrix-scroll{overflow-x:auto}
.matrix{width:100%;min-width:780px;border-collapse:collapse}
.matrix th,.matrix td{padding:16px 20px;text-align:left;font-size:14px;border-bottom:1px solid rgba(255,255,255,.06)}
.matrix thead th{background:var(--ink-900);color:var(--text-hi);font-weight:600;font-size:14px}
.matrix tbody th{
  position:sticky;left:0;z-index:1;background:var(--ink-800);
  color:var(--text-hi);font-weight:500;
}
.matrix tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.matrix tbody tr:nth-child(even) th{background:#161F31}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:0}
.matrix-fade{
  position:absolute;top:0;right:0;bottom:0;width:56px;pointer-events:none;
  background:linear-gradient(90deg,rgba(19,28,46,0),rgba(19,28,46,.92));
}
.ic-yes{color:var(--brand-500);display:inline-block;vertical-align:middle}
.ic-no{color:var(--text-lo);font-size:15px;line-height:1}

/* ---------- 限时入口条 ---------- */
.ticker{
  display:flex;align-items:center;gap:26px;flex-wrap:wrap;
  padding:22px 26px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.countdown{display:flex;gap:8px}
.cd-block{
  min-width:56px;text-align:center;padding:8px 6px;border-radius:var(--radius-sm);
  background:var(--ink-950);border:1px solid var(--line);
}
.cd-num{font-size:22px;font-weight:700;color:var(--amber-500);line-height:1.2;transition:opacity .15s ease}
.cd-num.flip{opacity:.35}
.cd-label{font-size:11px;color:var(--text-lo)}
.ticker-text{flex:1;min-width:240px;font-size:14.5px;line-height:1.8;color:var(--text-mid)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start}
.news-feature{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--radius-lg);background:var(--ink-800);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.news-feature:hover{transform:translateY(-2px);border-color:rgba(31,224,184,.35)}
.news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-feature-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-feature-title{font-size:21px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-desc{font-size:14.5px;line-height:1.8;color:var(--text-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-lo)}
.news-side{display:grid;gap:16px}
.news-row{
  display:grid;grid-template-columns:132px 1fr;gap:16px;padding:14px;
  border-radius:var(--radius-sm);background:var(--ink-800);
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease;
}
.news-row:hover{transform:translateY(-2px);border-color:rgba(31,224,184,.35)}
.news-row img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:10px}
.news-row-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-row-title{font-size:15.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-row-desc{font-size:13px;line-height:1.7;color:var(--text-lo);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-empty{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:64px 24px;border-radius:var(--radius-lg);
  background:var(--ink-800);border:1px dashed var(--line);text-align:center;
}
.news-empty svg{color:var(--text-lo)}
.news-empty p{font-size:15px;color:var(--text-mid)}
.news-more{display:flex;justify-content:flex-end;margin-top:22px}
@media (max-width:1023px){
  .news-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .news-row{grid-template-columns:100px 1fr;gap:12px}
}

/* ---------- FAQ ---------- */
.faq-shell{padding:10px;border-radius:var(--radius-lg)}
.faq-item{
  border-radius:var(--radius-sm);border:1px solid transparent;
  background:rgba(255,255,255,.03);margin-bottom:8px;overflow:hidden;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item:last-child{margin-bottom:0}
.faq-item.open{border-color:rgba(31,224,184,.3);background:rgba(31,224,184,.05)}
.faq-head{
  width:100%;display:flex;align-items:center;gap:12px;padding:16px 18px;
  background:none;border:0;text-align:left;cursor:pointer;color:var(--text-hi);
  font-size:16px;font-weight:500;line-height:1.6;
}
.faq-head .q-ico{flex-shrink:0;color:var(--brand-500);display:grid;place-items:center}
.faq-head .q-title{flex:1}
.faq-toggle{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-mid);
  transition:transform .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item.open .faq-toggle{transform:rotate(180deg);color:var(--brand-500);border-color:rgba(31,224,184,.4)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-body-inner{padding:0 18px 18px 52px;font-size:14.5px;line-height:1.85;color:var(--text-mid)}
.faq-body-inner p+p{margin-top:10px}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:44px;align-items:start}
.form-points li{display:flex;gap:12px;margin-bottom:18px}
.form-points .pt-ico{
  flex-shrink:0;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:rgba(124,92,255,.16);color:#B9A8FF;
}
.form-points b{display:block;font-size:15px;color:var(--text-hi);font-weight:600;margin-bottom:4px}
.form-points span{font-size:14px;line-height:1.75;color:var(--text-mid)}
.form-card{padding:28px;border-radius:var(--radius-lg);background:var(--ink-800);border:1px solid var(--line);box-shadow:var(--shadow-card)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--text-mid);margin-bottom:8px}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:var(--ink-950);border:1px solid var(--line);color:var(--text-hi);
  font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(31,224,184,.18);
}
.field .counter{display:block;text-align:right;font-size:12px;color:var(--text-lo);margin-top:6px}
.field .err{display:none;font-size:12.5px;color:var(--danger);margin-top:8px}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--danger)}
.field.invalid .err{display:block}
.chip-group{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:var(--ink-950);color:var(--text-mid);
  font-size:14px;cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:rgba(31,224,184,.45);color:var(--text-hi)}
.chip.checked{border-color:var(--brand-500);background:rgba(31,224,184,.10);color:var(--text-hi)}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-mid);line-height:1.7}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:#1FE0B8;flex-shrink:0}
.form-note{font-size:12.5px;color:var(--text-lo);margin-top:14px;line-height:1.7}
.form-success{
  display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(31,224,184,.10);border:1px solid rgba(31,224,184,.3);
  color:var(--text-hi);font-size:14px;
}
@media (max-width:1023px){.form-grid{grid-template-columns:1fr;gap:32px}}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-950);border-top:1px solid var(--line);padding:72px 0 0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(31,224,184,0),rgba(31,224,184,.5),rgba(124,92,255,.4),rgba(124,92,255,0));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:0}
.footer-col{padding:0 28px;border-left:1px solid var(--line)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-hi)}
.footer-col p,.footer-col li{font-size:14px;line-height:1.85;color:var(--text-mid)}
.footer-col li{margin-bottom:10px}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--brand-500)}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-mini{display:flex;flex-direction:column;gap:10px}
.footer-mini a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13.5px;color:var(--text-mid);
  transition:border-color .18s ease,color .18s ease;
}
.footer-mini a:hover{border-color:rgba(31,224,184,.4);color:var(--text-hi)}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-lo)}
.to-top{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(31,224,184,.45);background:rgba(31,224,184,.06);
  color:var(--brand-500);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;
}
.to-top:hover{transform:scale(1.05);box-shadow:0 0 0 1px rgba(31,224,184,.4),0 10px 26px rgba(31,224,184,.2)}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col{padding:0 0 28px;border-left:0;border-bottom:1px solid var(--line);margin-bottom:28px}
  .footer-col:nth-child(odd){padding-right:22px}
  .footer-col:nth-child(even){padding-left:22px;border-left:1px solid var(--line)}
  .footer-col:nth-last-child(-n+2){border-bottom:0;margin-bottom:0;padding-bottom:0}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0 0 26px !important;border-left:0 !important;border-bottom:1px solid var(--line);margin-bottom:26px}
  .footer-col:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0 !important}
  .hero-info{grid-template-columns:1fr 1fr;gap:10px}
  .entry-grid{grid-template-columns:1fr}
  .path-nodes{padding:0}
  .path-node span{font-size:12px;text-align:center}
}

/* roulang page: category1 */
:root{
  --ink-950:#060A12;
  --ink-900:#0B1220;
  --ink-800:#131C2E;
  --line:rgba(255,255,255,.10);
  --brand-500:#1FE0B8;
  --brand-600:#12B394;
  --violet-500:#7C5CFF;
  --amber-500:#FFC24B;
  --text-hi:#F2F6FF;
  --text-mid:#A8B6CC;
  --text-lo:#6E7C93;
  --danger:#FF6B6B;
  --r-lg:18px;
  --r-sm:12px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(31,224,184,.35),0 12px 32px rgba(31,224,184,.20);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease}
h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:600;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container-x{max-width:1280px}}

/* ============ 通用组件 ============ */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
  background:linear-gradient(135deg,#1FE0B8,#12B394);
  color:#06121A;font-size:15px;font-weight:600;letter-spacing:.02em;
  box-shadow:var(--glow);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,224,184,.45),0 16px 38px rgba(31,224,184,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,184,.35),0 8px 20px rgba(31,224,184,.18)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-sm);cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--text-mid);
  font-size:15px;font-weight:500;transition:all .2s ease;
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--text-hi);background:rgba(255,255,255,.03)}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);font-size:15px;font-weight:500}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover{color:var(--violet-500)}
.btn-link:hover svg{transform:translateX(4px)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:3px solid rgba(31,224,184,.35);outline-offset:2px;border-radius:8px;
}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:500;letter-spacing:.02em}
.badge-cat{background:rgba(124,92,255,.12);color:#A99BFF}
.badge-state{background:rgba(31,224,184,.12);color:var(--brand-500)}
.badge-time{background:rgba(255,194,75,.14);color:var(--amber-500)}
.sec-title{font-size:clamp(24px,2.8vw,36px)}
.sec-lead{margin-top:12px;max-width:760px;font-size:16px;color:var(--text-mid)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-lo);letter-spacing:.16em;text-transform:uppercase}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0 6px;background:linear-gradient(180deg,rgba(6,10,18,.92),rgba(6,10,18,.55) 70%,rgba(6,10,18,0));transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.45)}
.nav-panel{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:10px 16px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--brand-500);border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(31,224,184,.18),rgba(124,92,255,.18));
}
.brand-text b{display:block;font-size:16px;color:var(--text-hi);letter-spacing:.02em;font-weight:700}
.brand-text span{display:block;font-size:11px;color:var(--text-lo);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:nowrap}
.nav-item{
  position:relative;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-mid);border:1px solid transparent;white-space:nowrap;
}
.nav-item:hover{color:var(--text-hi);border-color:rgba(31,224,184,.55);background:rgba(255,255,255,.04);transform:translateY(-1px)}
.nav-ico{width:32px;height:32px;border-radius:var(--r-sm);display:grid;place-items:center;background:rgba(124,92,255,.16);color:var(--violet-500);flex-shrink:0;transition:background .2s ease}
.nav-item:hover .nav-ico{background:rgba(124,92,255,.3)}
.nav-item.active{color:var(--text-hi);border-color:var(--line);background:rgba(255,255,255,.04)}
.nav-item.active::before{content:"";position:absolute;left:-2px;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--brand-500)}
.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-cta .btn-primary{padding:10px 20px;font-size:14px}

/* ============ 内页头部横幅 ============ */
.page-hero{padding:28px 0 0}
.hero-banner{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--ink-800);
  aspect-ratio:21/9;min-height:300px;
}
.hero-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,10,18,.92) 0%,rgba(6,10,18,.72) 46%,rgba(6,10,18,.34) 100%);
}
.hero-inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding:44px 46px;gap:14px}
.hero-inner h1{font-size:clamp(30px,4.4vw,52px);letter-spacing:-.01em;max-width:760px}
.hero-inner h1 em{font-style:normal;color:var(--brand-500)}
.hero-inner p{max-width:660px;font-size:17px;color:var(--text-mid)}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}

/* ============ 图文交替流 ============ */
.flow-section{padding:88px 0 0}
.flow-intro{padding-bottom:56px;border-bottom:1px solid var(--line)}
.flow-row{
  display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;
  padding:60px 0;border-bottom:1px solid var(--line);
}
.flow-row.rev .flow-media{order:2}
.flow-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--ink-800);box-shadow:var(--shadow);
}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.flow-media .media-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--text-hi);
  background:rgba(6,10,18,.72);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.flow-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-sm);margin-bottom:18px;
  font-family:"Inter","DIN Alternate",sans-serif;font-size:15px;font-weight:600;
  color:var(--brand-500);background:rgba(31,224,184,.10);border:1px solid rgba(31,224,184,.26);
}
.flow-body h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:16px}
.flow-body p+p{margin-top:14px}
.point-list{margin:20px 0 22px;display:grid;gap:10px}
.point-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text-mid)}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:3px;
  background:var(--brand-500);opacity:.85;
}

/* ============ 快速提示条 ============ */
.quick-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--ink-900);
}
.quick-item{padding:22px 24px;border-right:1px solid var(--line)}
.quick-item:last-child{border-right:0}
.quick-item b{display:block;font-family:"Inter","DIN Alternate",sans-serif;font-size:20px;color:var(--text-hi);font-weight:600}
.quick-item span{display:block;margin-top:4px;font-size:13px;color:var(--text-lo)}

/* ============ FAQ ============ */
.faq-section{padding:88px 0 0}
.faq-wrap{
  margin-top:32px;padding:16px;border-radius:var(--r-lg);
  background:rgba(255,255,255,.05);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.faq-item{border-radius:var(--r-sm);background:var(--ink-900);border:1px solid var(--line);transition:border-color .2s ease}
.faq-item+.faq-item{margin-top:10px}
.faq-item.open{border-color:rgba(31,224,184,.35)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:16px 18px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--text-hi);font-size:16px;font-weight:500;
}
.faq-q .q-ico{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;background:rgba(124,92,255,.16);color:var(--violet-500);flex-shrink:0}
.faq-q .q-text{flex:1}
.faq-plus{
  flex-shrink:0;width:24px;height:24px;border-radius:999px;display:grid;place-items:center;
  font-size:16px;line-height:1;color:var(--brand-500);background:rgba(31,224,184,.10);
  transition:transform .2s ease;
}
.faq-item.open .faq-plus{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 18px 18px 60px;font-size:15px;color:var(--text-mid)}
.faq-a-inner p+p{margin-top:10px}

/* ============ 横向 CTA 条 ============ */
.cta-section{padding:88px 0 0}
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:34px 36px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(31,224,184,.12),rgba(124,92,255,.14));
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px)}
.cta-bar p{margin-top:8px;max-width:620px;font-size:15px;color:var(--text-mid)}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--ink-950);border-top:1px solid var(--line);position:relative}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(31,224,184,.55),transparent)}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.15fr;gap:0;padding:56px 0 0}
.footer-col{padding:0 28px;border-left:1px solid var(--line)}
.footer-col:first-child{padding-left:0;border-left:0}
.footer-col:last-child{padding-right:0}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-col h4{font-size:15px;color:var(--text-hi);margin-bottom:16px;font-weight:600}
.footer-col p{font-size:14px;color:var(--text-mid);line-height:1.8}
.footer-col ul li{font-size:14px;color:var(--text-mid);padding:6px 0;border-bottom:1px dashed rgba(255,255,255,.06)}
.footer-col ul li:last-child{border-bottom:0}
.footer-mini{display:flex;flex-direction:column;gap:8px}
.footer-mini a{font-size:14px;color:var(--text-mid);display:inline-flex;align-items:center;gap:8px}
.footer-mini a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--violet-500);opacity:.7}
.footer-mini a:hover{color:var(--brand-500)}
.footer-bottom{
  margin-top:48px;padding:22px 0 30px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-lo)}
.to-top{
  width:44px;height:44px;border-radius:999px;display:grid;place-items:center;cursor:pointer;
  background:transparent;color:var(--brand-500);border:1px solid rgba(31,224,184,.45);
  transition:transform .2s ease,box-shadow .2s ease;
}
.to-top:hover{transform:scale(1.05);box-shadow:0 0 0 1px rgba(31,224,184,.35),0 10px 24px rgba(31,224,184,.18)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container-x{padding:0 24px}
  .nav-panel{flex-wrap:wrap}
  .nav-links{order:3;width:100%;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .nav-links::-webkit-scrollbar{height:4px}
  .nav-links::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:4px}
  .nav-cta{margin-left:auto}
  .nav-cta .btn-ghost{display:none}
  .flow-section,.faq-section,.cta-section{padding-top:72px}
  .flow-row{grid-template-columns:1fr;gap:28px;padding:48px 0}
  .flow-row.rev .flow-media{order:0}
  .quick-strip{grid-template-columns:1fr}
  .quick-item{border-right:0;border-bottom:1px solid var(--line)}
  .quick-item:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:36px}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(odd){padding-left:0;border-left:0}
  .hero-inner{padding:32px 28px}
}
@media (max-width:640px){
  .container-x{padding:0 20px}
  body{font-size:15px}
  .nav-item .label{font-size:13px}
  .nav-cta .btn-primary{padding:9px 16px;font-size:13px}
  .hero-banner{aspect-ratio:auto;min-height:400px}
  .hero-inner{padding:26px 20px}
  .hero-inner p{font-size:15px}
  .flow-section,.faq-section,.cta-section{padding-top:56px}
  .flow-row{padding:40px 0;gap:22px}
  .faq-a-inner{padding:0 16px 16px 16px}
  .cta-bar{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0;border-left:0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --ink-950:#060A12;
  --ink-900:#0B1220;
  --ink-800:#131C2E;
  --line:rgba(255,255,255,.10);
  --brand-500:#1FE0B8;
  --brand-600:#12B394;
  --violet-500:#7C5CFF;
  --amber-500:#FFC24B;
  --text-hi:#F2F6FF;
  --text-mid:#A8B6CC;
  --text-lo:#6E7C93;
  --err:#FF6B6B;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate",var(--font-cn);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(31,224,184,.35);outline-offset:2px;border-radius:8px}

.container-x{max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container-x{max-width:1280px}}
@media (max-width:1023px){.container-x{padding:0 24px}}
@media (max-width:640px){.container-x{padding:0 20px}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(6,10,18,.92),rgba(6,10,18,.62));
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(0,0,0,.5)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:10px 14px;
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:38px;height:38px;flex:none;
  display:grid;place-items:center;
  border-radius:var(--radius-sm);
  color:var(--brand-500);
  background:rgba(31,224,184,.10);
  border:1px solid rgba(31,224,184,.25);
}
.brand-text b{display:block;color:var(--text-hi);font-size:16px;font-weight:600;line-height:1.25}
.brand-text span{display:block;font-size:11px;color:var(--text-lo);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:8px;
  height:44px;padding:0 12px;border-radius:var(--radius-sm);
  border:1px solid transparent;color:var(--text-mid);
  transition:transform .18s ease,border-color .18s ease,color .18s ease,background .18s ease;
}
.nav-item:hover{transform:translateY(-1px);border-color:var(--brand-500);color:var(--text-hi)}
.nav-item.active{border-color:var(--line);background:rgba(255,255,255,.04);color:var(--text-hi)}
.nav-item.active::before{
  content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:2px;
  border-radius:2px;background:var(--brand-500);
}
.nav-ico{
  width:32px;height:32px;flex:none;display:grid;place-items:center;
  border-radius:var(--radius-sm);
  background:rgba(124,92,255,.16);color:#BCAEFF;
}
.nav-item .label{font-size:14px;white-space:nowrap}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:6px}
.nav-toggle{
  display:none;width:44px;height:44px;place-items:center;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);color:var(--text-hi);cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-500)}

/* ---------- buttons ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border:0;border-radius:999px;cursor:pointer;
  font-size:14px;font-weight:600;color:#06121A;
  background:linear-gradient(135deg,#1FE0B8,#12B394);
  box-shadow:0 0 0 1px rgba(31,224,184,.35),0 12px 32px rgba(31,224,184,.20);
  transition:filter .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,224,184,.45),0 16px 38px rgba(31,224,184,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,184,.35),0 6px 18px rgba(31,224,184,.18)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-sm);cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--text-mid);
  font-size:14px;transition:border-color .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--text-hi);transform:translateY(-1px)}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);font-size:14px;font-weight:500}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- badges / pills ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;line-height:1;letter-spacing:.02em;
}
.badge-violet{background:rgba(124,92,255,.12);color:#BCAEFF}
.badge-brand{background:rgba(31,224,184,.12);color:var(--brand-500)}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber-500)}

/* ---------- mobile panel ---------- */
.mobile-panel{
  position:fixed;inset:0;z-index:80;display:none;
  background:rgba(6,10,18,.97);backdrop-filter:blur(14px);
  padding:88px 20px 28px;
}
.mobile-panel.open{display:block}
.mobile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.mob-card{
  display:flex;align-items:center;gap:10px;
  min-height:60px;padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--text-mid);font-size:14px;
}
.mob-card.active{border-color:var(--brand-500);color:var(--text-hi)}
.mobile-cta{width:100%;margin-top:20px}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--ink-900);border-bottom:1px solid var(--line)}
.crumb{
  display:flex;align-items:center;gap:8px;
  min-height:48px;font-size:13px;color:var(--text-lo);
  overflow:hidden;white-space:nowrap;
}
.crumb a{color:var(--text-mid);transition:color .18s ease}
.crumb a:hover{color:var(--brand-500)}
.crumb-sep{color:var(--text-lo);opacity:.7}
.crumb-cur{color:var(--text-mid);overflow:hidden;text-overflow:ellipsis;max-width:52vw}
.crumb-cat{color:#BCAEFF}

/* ---------- article head ---------- */
.article-main{padding:56px 0 0}
.article-head{max-width:820px;margin:0 auto;text-align:left}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.28;letter-spacing:-.01em;font-weight:700;color:var(--text-hi);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:16px;font-size:13px;color:var(--text-lo);
}
.article-meta time{font-family:var(--font-num)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--text-lo);opacity:.6}
.article-lead{
  margin-top:22px;padding:18px 20px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.05);
  font-size:15px;color:var(--text-mid);
}
.head-divider{max-width:820px;margin:32px auto 0;height:1px;background:var(--line)}

/* ---------- prose ---------- */
.prose-body{
  max-width:760px;margin:0 auto;padding:44px 16px 0;
  color:var(--text-mid);font-size:16px;line-height:1.9;letter-spacing:.01em;
  overflow-wrap:break-word;
}
.prose-body > p:first-of-type{font-size:17px;color:var(--text-hi)}
.prose-body p{margin:0 0 18px}
.prose-body h2{
  position:relative;margin:40px 0 16px;padding-left:14px;
  font-size:clamp(20px,2.4vw,26px);line-height:1.45;font-weight:600;color:var(--text-hi);
}
.prose-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  border-radius:3px;background:var(--brand-500);
}
.prose-body h3{margin:28px 0 12px;font-size:19px;font-weight:600;color:var(--text-hi);line-height:1.5}
.prose-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--text-hi)}
.prose-body img{border-radius:14px;margin:22px auto;box-shadow:var(--shadow)}
.prose-body figure{margin:22px 0}
.prose-body figcaption{margin-top:10px;font-size:13px;color:var(--text-lo);text-align:center}
.prose-body blockquote{
  margin:22px 0;padding:16px 20px;
  border-left:3px solid var(--brand-500);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  background:rgba(255,255,255,.05);color:var(--text-mid);
}
.prose-body ul{margin:0 0 18px}
.prose-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.prose-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  border-radius:2px;background:var(--brand-500);
}
.prose-body ol{margin:0 0 18px;counter-reset:pcount}
.prose-body ol li{position:relative;padding-left:24px;margin-bottom:10px}
.prose-body ol li::before{
  counter-increment:pcount;content:counter(pcount);
  position:absolute;left:0;top:.35em;width:16px;height:16px;
  font-size:11px;line-height:16px;text-align:center;border-radius:4px;
  color:#06121A;background:var(--brand-500);font-family:var(--font-num);
}
.prose-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;transition:color .18s ease}
.prose-body a:hover{color:var(--violet-500)}
.prose-body strong{color:var(--text-hi);font-weight:600}
.prose-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;
  background:var(--ink-800);border-radius:var(--radius-lg);overflow:hidden;
}
.prose-body th,.prose-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.prose-body th{background:rgba(31,224,184,.08);color:var(--text-hi);font-weight:600}
.prose-body tr:last-child td{border-bottom:0}
.prose-body hr{margin:32px 0;border:0;height:1px;background:var(--line)}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;margin:48px auto;padding:40px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--ink-900);
}
.empty-state .empty-ico{
  width:52px;height:52px;margin:0 auto 16px;display:grid;place-items:center;
  border-radius:14px;background:rgba(124,92,255,.14);color:#BCAEFF;
}
.empty-state h2{font-size:20px;color:var(--text-hi);margin-bottom:8px;font-weight:600}
.empty-state p{font-size:14px;color:var(--text-lo);margin-bottom:20px}

/* ---------- article foot ---------- */
.article-foot{max-width:760px;margin:0 auto;padding:0 16px 8px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px}
.tag-label{font-size:13px;color:var(--text-lo);margin-right:2px}
.pill{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:13px;color:var(--text-mid);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.pill:hover{border-color:var(--brand-500);color:var(--text-hi);background:rgba(31,224,184,.08)}
.foot-divider{height:1px;background:var(--line);margin:28px 0 18px}
.reprint-note{font-size:13px;color:var(--text-lo);line-height:1.7}

/* ---------- related ---------- */
.section{padding:72px 0}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:600;color:var(--text-hi);line-height:1.4}
.section-head p{margin-top:10px;font-size:14px;color:var(--text-lo);max-width:620px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(31,224,184,.35)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 35%,rgba(6,10,18,.72) 100%);
}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-lo)}
.card-body h3{font-size:16px;font-weight:600;color:var(--text-hi);line-height:1.5}
.card-body p{font-size:13px;color:var(--text-lo);line-height:1.75}
.card-body .btn-link{margin-top:auto;font-size:13px}

/* ---------- band cta ---------- */
.band-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  padding:26px 28px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  backdrop-filter:blur(14px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.band-cta h3{font-size:19px;font-weight:600;color:var(--text-hi);margin-bottom:6px}
.band-cta p{font-size:14px;color:var(--text-lo);max-width:560px}
.back-row{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin-top:26px}

/* ---------- footer ---------- */
.site-footer{
  margin-top:88px;background:var(--ink-950);
  border-top:1px solid var(--line);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(31,224,184,0),rgba(31,224,184,.55),rgba(124,92,255,.45),rgba(31,224,184,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:0;
  padding:56px 0 40px;
}
.footer-col{padding:0 26px}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col + .footer-col{border-left:1px solid var(--line)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col p{font-size:13px;color:var(--text-mid);line-height:1.8}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-hi);margin-bottom:16px}
.footer-col ul li{font-size:13px;color:var(--text-mid);line-height:1.9}
.footer-mini{display:flex;flex-direction:column;gap:10px}
.footer-mini a{font-size:13px;color:var(--text-mid);transition:color .18s ease}
.footer-mini a:hover{color:var(--brand-500)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0 28px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:12px;color:var(--text-lo)}
.to-top{
  width:42px;height:42px;flex:none;display:grid;place-items:center;cursor:pointer;
  border-radius:999px;border:1px solid rgba(31,224,184,.5);
  background:rgba(31,224,184,.10);color:var(--brand-500);
  box-shadow:0 0 0 1px rgba(31,224,184,.18),0 8px 22px rgba(31,224,184,.16);
  transition:transform .18s ease,filter .18s ease;
}
.to-top:hover{transform:scale(1.05);filter:brightness(1.08)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links,.nav-actions .btn-primary,.nav-actions .btn-ghost{display:none}
  .nav-toggle{display:grid;margin-left:auto}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;padding:48px 0 32px}
  .footer-col{padding:0 20px}
  .footer-col:nth-child(odd){padding-left:0}
  .footer-col + .footer-col{border-left:0}
  .footer-col:nth-child(even){border-left:1px solid var(--line)}
  .section{padding:56px 0}
}
@media (max-width:640px){
  .article-main{padding:36px 0 0}
  .crumb-cur{max-width:44vw}
  .prose-body{padding:32px 16px 0}
  .related-grid{grid-template-columns:1fr}
  .band-cta{padding:22px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col{padding:0}
  .footer-col:nth-child(even){border-left:0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section{padding:48px 0}
}

/* roulang page: category2 */
:root{
  --ink-950:#060A12; --ink-900:#0B1220; --ink-800:#131C2E;
  --line:rgba(255,255,255,.10); --line-strong:rgba(255,255,255,.18);
  --brand-500:#1FE0B8; --brand-600:#12B394; --violet-500:#7C5CFF; --amber-500:#FFC24B;
  --text-hi:#F2F6FF; --text-mid:#A8B6CC; --text-lo:#6E7C93; --danger:#FF6B6B;
  --r-lg:18px; --r-sm:12px; --shadow:0 8px 32px rgba(0,0,0,.45);
  --focus-ring:0 0 0 3px rgba(31,224,184,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-950);color:var(--text-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-hi);line-height:1.25;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(31,224,184,.28);color:#fff}
:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:10px}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(min-width:1440px){.container-x{max-width:1280px}}
@media(max-width:1023px){.container-x{padding:0 24px}}
@media(max-width:639px){.container-x{padding:0 20px}}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 10px;transition:padding .2s ease}
.site-header.scrolled{padding-top:10px}
.nav-panel{
  display:flex;align-items:center;gap:14px;padding:10px 14px;
  background:rgba(255,255,255,.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled .nav-panel{box-shadow:inset 0 1px 0 rgba(255,255,255,.08),0 14px 34px rgba(0,0,0,.45);border-color:var(--line-strong)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--brand-500);
  background:linear-gradient(150deg,rgba(31,224,184,.20),rgba(124,92,255,.22));
  border:1px solid rgba(31,224,184,.30);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:16px;color:var(--text-hi);font-weight:700;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-lo);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  border-radius:var(--r-sm);border:1px solid transparent;color:var(--text-mid);font-size:14px;
  transition:transform .18s ease,border-color .18s ease,color .18s ease,background-color .18s ease;
}
.nav-item .nav-ico{
  width:32px;height:32px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
  background:rgba(124,92,255,.16);color:#B7A6FF;border:1px solid rgba(124,92,255,.22);
  transition:background-color .18s ease,color .18s ease;
}
.nav-item:hover{color:var(--text-hi);border-color:rgba(31,224,184,.32);transform:translateY(-1px)}
.nav-item:hover .nav-ico{background:rgba(124,92,255,.28);color:#D6CBFF}
.nav-item.active{color:var(--text-hi);background:rgba(31,224,184,.07);border-color:rgba(31,224,184,.38)}
.nav-item.active .nav-ico{background:rgba(31,224,184,.18);color:var(--brand-500);border-color:rgba(31,224,184,.35)}
.nav-item.active::before{
  content:"";position:absolute;left:-1px;top:9px;bottom:9px;width:2px;border-radius:2px;background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--text-hi);place-items:center;cursor:pointer;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  border:1px solid transparent;font-weight:600;font-size:15px;letter-spacing:.01em;
  transition:transform .16s ease,box-shadow .16s ease,filter .16s ease,border-color .16s ease,color .16s ease;
}
.btn-primary{
  padding:12px 24px;border-radius:999px;color:#06121A;
  background:linear-gradient(135deg,#1FE0B8,#12B394);
  box-shadow:0 0 0 1px rgba(31,224,184,.35),0 12px 32px rgba(31,224,184,.20);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,224,184,.45),0 16px 40px rgba(31,224,184,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,184,.35),0 8px 20px rgba(31,224,184,.18)}
.btn-ghost{padding:11px 22px;border-radius:var(--r-sm);border-color:var(--line);background:transparent;color:var(--text-mid)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--text-hi)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-500);font-size:14px;font-weight:500}
.btn-link svg{transition:transform .18s ease}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- 移动导航 ---------- */
.mobile-panel{display:none;margin-top:10px;padding:16px;border-radius:var(--r-lg);
  background:var(--ink-900);border:1px solid var(--line);box-shadow:var(--shadow)}
.mobile-panel.open{display:block}
.mp-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:14px}
.mp-card{display:flex;align-items:center;gap:8px;padding:12px;border-radius:var(--r-sm);
  background:var(--ink-800);border:1px solid var(--line);color:var(--text-mid);font-size:14px}
.mp-card.active{border-color:rgba(31,224,184,.4);color:var(--text-hi);background:rgba(31,224,184,.08)}
.mp-card .nav-ico{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;
  background:rgba(124,92,255,.18);color:#B7A6FF;flex:0 0 auto}

/* ---------- 横幅 ---------- */
.page-hero{padding:24px 0 0}
.banner{
  position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);
  aspect-ratio:21/9;min-height:260px;background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  box-shadow:var(--shadow);
}
.banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,10,18,.95) 0%,rgba(6,10,18,.78) 42%,rgba(6,10,18,.30) 100%);
}
.banner-inner{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;
  height:100%;padding:36px 40px;gap:14px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-lo)}
.crumb a:hover{color:var(--brand-500)}
.crumb .sep{color:var(--text-lo);opacity:.6}
.banner h1{font-size:clamp(26px,3.4vw,42px);line-height:1.2;letter-spacing:-.01em;max-width:820px}
.banner h1 em{font-style:normal;color:var(--brand-500)}
.banner .lede{font-size:16px;color:var(--text-mid);max-width:640px;line-height:1.8}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;line-height:1}
.badge-violet{background:rgba(124,92,255,.14);color:#B7A6FF}
.badge-brand{background:rgba(31,224,184,.12);color:var(--brand-500)}
.badge-amber{background:rgba(255,194,75,.14);color:var(--amber-500)}

/* ---------- 主体布局 ---------- */
main{display:block}
.section{padding:72px 0}
.section-tight{padding:56px 0}
.sec-head{max-width:720px;margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);letter-spacing:-.005em}
.sec-head p{margin-top:12px;color:var(--text-mid);font-size:15px;line-height:1.85}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--brand-500);margin-bottom:12px}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--brand-500)}

.cat2-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:36px;align-items:start}

/* ---------- 卡片密排 ---------- */
.cat-block{padding:34px 0;border-top:1px solid var(--line)}
.cat-block:first-child{padding-top:0;border-top:0}
.cat-block > h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:10px}
.cat-block > .block-lede{color:var(--text-mid);font-size:15px;margin-bottom:22px;max-width:660px}
.cat2-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;background:var(--ink-800);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.pc-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-900)}
.pc-media img{width:100%;height:100%;object-fit:cover}
.pc-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,0) 40%,rgba(6,10,18,.72) 100%)}
.pc-media .badge{position:absolute;left:14px;top:14px;z-index:2;
  background:rgba(124,92,255,.85);color:#fff;backdrop-filter:blur(4px)}
.pc-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.pc-body h3{font-size:18px;line-height:1.45}
.pc-body p{font-size:14px;color:var(--text-mid);line-height:1.8}
.pc-points{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.pc-points li{position:relative;padding-left:16px;font-size:13.5px;color:var(--text-mid);line-height:1.7}
.pc-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand-500)}
.pc-foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.pc-time{font-size:12.5px;color:var(--text-lo)}

/* ---------- 步骤流 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:26px}
.step{position:relative;padding:20px 18px;border-radius:var(--r-sm);background:var(--ink-900);border:1px solid var(--line)}
.step b{display:block;font-size:12px;letter-spacing:.12em;color:var(--amber-500);margin-bottom:10px}
.step h4{font-size:15.5px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--text-mid);line-height:1.75}

/* ---------- 侧栏 ---------- */
.cat2-aside{position:relative}
.aside-card{position:sticky;top:104px;background:var(--ink-800);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow)}
.aside-card + .aside-card{margin-top:18px;position:static}
.aside-card h3{font-size:15px;margin-bottom:14px}
.side-index ul{display:flex;flex-direction:column;gap:6px}
.side-index a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--text-mid);border:1px solid transparent;
}
.side-index a .dot{width:6px;height:6px;border-radius:50%;background:var(--text-lo);flex:0 0 auto}
.side-index a:hover{color:var(--text-hi);background:rgba(255,255,255,.04)}
.side-index a.active{color:var(--text-hi);background:rgba(31,224,184,.08);border-color:rgba(31,224,184,.32)}
.side-index a.active .dot{background:var(--brand-500);box-shadow:0 0 0 3px rgba(31,224,184,.18)}
.aside-note{font-size:13.5px;color:var(--text-mid);line-height:1.8}
.aside-note li{display:flex;gap:8px;padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.07)}
.aside-note li:last-child{border-bottom:0}
.aside-note svg{flex:0 0 auto;margin-top:5px;color:var(--brand-500)}

/* ---------- 问答 ---------- */
.qa-list{display:flex;flex-direction:column;gap:10px;margin-top:22px}
.qa-item{border:1px solid var(--line);border-radius:var(--r-sm);background:var(--ink-900);overflow:hidden}
.qa-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;background:transparent;border:0;cursor:pointer;text-align:left;font-size:15.5px;color:var(--text-hi);font-weight:500}
.qa-q .plus{flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line-strong);color:var(--brand-500);transition:transform .2s ease,background-color .2s ease}
.qa-item.open .qa-q .plus{transform:rotate(180deg);background:rgba(31,224,184,.12)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.qa-a-inner{padding:0 18px 18px;font-size:14.5px;color:var(--text-mid);line-height:1.85}
.qa-a-inner p + p{margin-top:10px}

/* ---------- 三格要点条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.stat-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow)}
.stat-card .num{font-size:30px;font-weight:700;color:var(--brand-500);font-family:"Inter","DIN Alternate",sans-serif;letter-spacing:-.02em}
.stat-card h4{font-size:16px;margin:10px 0 8px}
.stat-card p{font-size:13.8px;color:var(--text-mid);line-height:1.75}
.cta-band{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:18px;padding:22px 24px;border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(31,224,184,.10),rgba(124,92,255,.10));
  border:1px solid var(--line)}
.cta-band p{font-size:15px;color:var(--text-hi);max-width:640px}

/* ---------- 表单 ---------- */
.consult-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:36px;align-items:start}
.consult-points{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.consult-points li{display:flex;gap:12px;font-size:14.5px;color:var(--text-mid)}
.consult-points .ico{width:34px;height:34px;flex:0 0 auto;border-radius:var(--r-sm);display:grid;place-items:center;
  background:rgba(124,92,255,.16);color:#B7A6FF;border:1px solid rgba(124,92,255,.22)}
.form-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-mid);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-sm);background:rgba(6,10,18,.72);
  border:1px solid var(--line);color:var(--text-hi);font-size:14.5px;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:var(--focus-ring)}
.field .hint{font-size:12.5px;color:var(--text-lo);margin-top:6px;text-align:right}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text-mid);line-height:1.7}
.check input{width:16px;height:16px;margin-top:4px;accent-color:#1FE0B8}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:24px;background:var(--ink-950);border-top:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(31,224,184,.10),rgba(6,10,18,0) 90%);
  background-repeat:no-repeat;background-size:100% 1px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{font-size:15px;margin-bottom:14px;color:var(--text-hi)}
.footer-col p,.footer-col li{font-size:13.8px;color:var(--text-mid);line-height:1.85}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-mini{display:flex;flex-direction:column;gap:10px}
.footer-mini a{font-size:13.8px;color:var(--text-mid);display:inline-flex;align-items:center;gap:8px}
.footer-mini a::before{content:"";width:5px;height:5px;border-radius:2px;background:var(--violet-500)}
.footer-mini a:hover{color:var(--brand-500)}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-bottom{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-bottom p{font-size:12.8px;color:var(--text-lo)}
.to-top{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
  background:rgba(31,224,184,.08);border:1px solid rgba(31,224,184,.35);color:var(--brand-500);
  box-shadow:0 0 0 1px rgba(31,224,184,.15),0 10px 26px rgba(31,224,184,.16);
  transition:transform .18s ease,background-color .18s ease}
.to-top:hover{transform:scale(1.05);background:rgba(31,224,184,.16)}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:grid;margin-left:auto}
  .cat2-layout{grid-template-columns:1fr;gap:28px}
  .cat2-aside{position:static}
  .aside-card{position:static}
  .side-index ul{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px;scrollbar-width:thin}
  .side-index ul li{flex:0 0 auto}
  .side-index a{white-space:nowrap;border-radius:999px;border-color:var(--line);background:rgba(255,255,255,.03)}
  .aside-card + .aside-card{margin-top:16px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .consult-grid{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .banner-inner{padding:28px 26px}
}
@media(max-width:767px){
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .cat2-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr}
  .banner{aspect-ratio:16/10}
  .banner-inner{padding:22px 20px}
  .cat-block{padding:28px 0}
}
@media(max-width:520px){
  .brand-text span{display:none}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start}
  .mp-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --ink-950:#060A12;
  --ink-900:#0B1220;
  --ink-800:#131C2E;
  --line:rgba(255,255,255,0.10);
  --brand-500:#1FE0B8;
  --brand-600:#12B394;
  --violet-500:#7C5CFF;
  --amber-500:#FFC24B;
  --text-hi:#F2F6FF;
  --text-mid:#A8B6CC;
  --text-lo:#6E7C93;
  --danger:#FF6B6B;
  --r-lg:18px;
  --r-md:12px;
  --r-pill:999px;
  --shadow:0 8px 32px rgba(0,0,0,.45);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:"Inter","DIN Alternate","PingFang SC",sans-serif;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink-950);color:var(--text-mid);
  font-family:var(--font-cn);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{list-style:none;padding:0}
h1,h2,h3,h4{color:var(--text-hi);font-weight:600;line-height:1.3}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid rgba(31,224,184,.35);outline-offset:2px;border-radius:6px}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container-x{max-width:1280px}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:16px 0 0}
.nav-panel{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:rgba(255,255,255,0.05);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08);
  transition:box-shadow .25s ease;
}
.site-header.scrolled .nav-panel{box-shadow:0 14px 34px rgba(0,0,0,.5),inset 0 1px 0 rgba(255,255,255,.08)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:var(--r-md);display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(31,224,184,.22),rgba(124,92,255,.22));
  border:1px solid var(--line);color:var(--brand-500);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{color:var(--text-hi);font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-lo);letter-spacing:.08em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}
.nav-item{position:relative;display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border-radius:var(--r-md);border:1px solid transparent;color:var(--text-mid);font-size:14px;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease}
.nav-item:hover{background:rgba(255,255,255,.04);border-color:rgba(31,224,184,.5);transform:translateY(-1px);color:var(--text-hi)}
.nav-item.active{color:var(--text-hi);background:rgba(255,255,255,.05);border-color:rgba(31,224,184,.35)}
.nav-item.active::before{content:"";position:absolute;left:-1px;top:10px;bottom:10px;width:2px;border-radius:2px;background:var(--brand-500)}
.nav-ico{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;flex:none;
  background:rgba(124,92,255,.16);color:var(--violet-500);transition:background .2s ease,color .2s ease}
.nav-item:hover .nav-ico,.nav-item.active .nav-ico{background:rgba(124,92,255,.3);color:#A692FF}
.nav-actions{display:flex;align-items:center;gap:14px;flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;padding:0;place-items:center}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--text-hi);margin:3px auto;border-radius:2px;transition:transform .2s ease,opacity .2s ease}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;
  cursor:pointer;border:1px solid transparent;text-align:center;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:linear-gradient(135deg,#1FE0B8,#12B394);color:#06121A;border-radius:var(--r-pill);
  padding:12px 22px;box-shadow:0 0 0 1px rgba(31,224,184,.35),0 12px 32px rgba(31,224,184,.20)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,224,184,.5),0 16px 40px rgba(31,224,184,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(31,224,184,.4),0 8px 20px rgba(31,224,184,.18)}
.btn-outline{border:1px solid var(--line);color:var(--text-hi);border-radius:var(--r-md);padding:12px 20px;background:transparent}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-500)}
.btn-sm{padding:10px 18px;font-size:13px}
.btn-lg{padding:15px 30px;font-size:15px}
.btn-ghost-text{color:var(--text-mid);font-size:13px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.btn-ghost-text:hover{color:var(--brand-500)}
.btn-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand-500);font-size:14px;font-weight:500}
.btn-link svg{transition:transform .2s ease}
.btn-link:hover svg{transform:translateX(4px)}

/* ============ 通用板块 ============ */
.section{padding:96px 0 0}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--violet-500);background:rgba(124,92,255,.12);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px}
.h2{font-size:clamp(24px,2.8vw,36px);letter-spacing:-.01em}
.lead{margin-top:14px;font-size:15px;color:var(--text-mid);line-height:1.9;max-width:640px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ============ Hero ============ */
.hero{padding-top:28px}
.hero-banner{position:relative;overflow:hidden;border-radius:22px;border:1px solid var(--line);
  min-height:380px;aspect-ratio:21/9;box-shadow:var(--shadow)}
.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-mask{position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,10,18,.94) 0%,rgba(6,10,18,.78) 42%,rgba(6,10,18,.30) 100%)}
.hero-inner{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;
  padding:0 56px;max-width:760px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--brand-500);
  background:rgba(31,224,184,.12);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:18px;width:max-content}
.hero-title{font-size:clamp(30px,4.4vw,52px);line-height:1.18;letter-spacing:-.01em}
.hero-title em{font-style:normal;color:var(--brand-500)}
.hero-sub{margin-top:18px;font-size:16px;line-height:1.9;color:var(--text-mid);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:30px}
.hero-strip{display:flex;align-items:center;gap:14px;margin-top:22px;padding:14px 18px;
  border-radius:var(--r-md);border:1px solid var(--line);background:rgba(255,255,255,.04);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);width:max-content;max-width:100%}
.hero-strip .node{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-mid)}
.hero-strip .node svg{color:var(--brand-500)}
.hero-strip .bar{width:34px;height:1px;background:linear-gradient(90deg,rgba(31,224,184,.7),rgba(124,92,255,.3))}

/* ============ 数据卡 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.stat-card::after{content:"";position:absolute;left:24px;top:0;width:44px;height:2px;border-radius:2px;background:var(--brand-500);opacity:.7}
.stat-value{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--text-hi);letter-spacing:-.01em;line-height:1.2}
.stat-value small{font-size:14px;font-weight:500;color:var(--text-mid);margin-left:4px}
.stat-label{margin-top:10px;font-size:14px;color:var(--text-hi);font-weight:500}
.stat-desc{margin-top:8px;font-size:13px;color:var(--text-lo);line-height:1.75}
.stat-card.hot .stat-value{color:var(--amber-500)}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:19px;top:10px;bottom:26px;width:1px;
  background:linear-gradient(180deg,rgba(31,224,184,.6),rgba(124,92,255,.35),rgba(255,255,255,.05))}
.tl-item{position:relative;padding:0 0 34px 68px}
.tl-item:last-child{padding-bottom:0}
.tl-node{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:var(--r-md);
  display:grid;place-items:center;background:var(--ink-800);border:1px solid var(--line);
  font-family:var(--font-num);font-size:13px;font-weight:600;color:var(--brand-500)}
.tl-item.now .tl-node{border-color:var(--amber-500);color:var(--amber-500);box-shadow:0 0 0 1px rgba(255,194,75,.25)}
.tl-card{background:var(--ink-900);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;transition:border-color .2s ease,transform .2s ease}
.tl-card:hover{border-color:rgba(31,224,184,.35);transform:translateY(-2px)}
.tl-time{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-num);font-size:13px;
  color:var(--brand-500);background:rgba(31,224,184,.10);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:12px}
.tl-item.now .tl-time{color:var(--amber-500);background:rgba(255,194,75,.14)}
.tl-title{font-size:19px}
.tl-text{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--text-mid)}

/* ============ 图文双卡 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:24px;align-items:stretch}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);min-height:280px}
.split-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.split-media .veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,18,.15),rgba(6,10,18,.85))}
.split-media .cap{position:absolute;left:22px;right:22px;bottom:20px;font-size:14px;color:var(--text-hi);line-height:1.7}
.panel-card{background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.panel-tag{display:inline-flex;width:max-content;font-size:12px;border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
  color:var(--violet-500);background:rgba(124,92,255,.12)}
.panel-card h3{font-size:20px}
.panel-card>p{margin-top:10px;font-size:14.5px;line-height:1.9;color:var(--text-mid)}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text-mid);line-height:1.8}
.check-list li svg{flex:none;margin-top:5px;color:var(--brand-500)}
.panel-card .btn-link{margin-top:auto;padding-top:22px}

/* ============ 编号问答 ============ */
.qa-list{display:flex;flex-direction:column;gap:12px}
.qa-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--ink-900);overflow:hidden;transition:border-color .2s ease}
.qa-item.open{border-color:rgba(31,224,184,.4)}
.qa-head{width:100%;display:flex;align-items:center;gap:14px;padding:16px 20px;background:transparent;
  border:0;cursor:pointer;text-align:left;color:var(--text-hi);font-size:15.5px;font-weight:500;transition:color .2s ease}
.qa-head:hover{color:var(--brand-500)}
.qa-num{font-family:var(--font-num);font-size:12px;font-weight:600;color:var(--brand-500);
  border:1px solid rgba(31,224,184,.3);border-radius:8px;width:30px;height:30px;display:grid;place-items:center;flex:none}
.qa-head .plus{margin-left:auto;flex:none;color:var(--text-lo);transition:transform .2s ease}
.qa-item.open .qa-head .plus{transform:rotate(45deg);color:var(--brand-500)}
.qa-body{max-height:0;overflow:hidden;transition:max-height .25s ease}
.qa-body-inner{padding:0 20px 20px 64px;font-size:14.5px;line-height:1.9;color:var(--text-mid)}
.qa-body-inner p+p{margin-top:10px}

/* ============ 单列文字 CTA ============ */
.cta-plain{margin-top:96px;background:var(--ink-900);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 40px;text-align:center;box-shadow:var(--shadow)}
.cta-plain h2{font-size:clamp(22px,2.4vw,30px)}
.cta-plain p{margin:16px auto 0;max-width:620px;font-size:15px;line-height:1.9;color:var(--text-mid)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--ink-950);position:relative;border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(31,224,184,.55),transparent)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.3fr;gap:32px;padding:64px 0 40px}
.footer-grid>.footer-col+.footer-col{border-left:1px solid var(--line);padding-left:28px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col h4{font-size:15px;color:var(--text-hi);margin-bottom:16px;font-weight:600}
.footer-col p{font-size:14px;line-height:1.9;color:var(--text-mid)}
.footer-col ul li{font-size:14px;color:var(--text-mid);line-height:1.9;padding-left:14px;position:relative}
.footer-col ul li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;border-radius:2px;background:var(--brand-500);opacity:.7}
.footer-mini{display:flex;flex-direction:column;gap:12px}
.footer-mini a{font-size:14px;color:var(--text-mid);transition:color .2s ease}
.footer-mini a:hover{color:var(--brand-500)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;
  border-top:1px solid var(--line);padding:20px 0 32px}
.footer-bottom p{font-size:13px;color:var(--text-lo)}
.to-top{width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);background:transparent;
  color:var(--text-mid);display:grid;place-items:center;cursor:pointer;flex:none;
  transition:transform .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease}
.to-top:hover{transform:scale(1.05);color:var(--brand-500);border-color:var(--brand-500);box-shadow:0 0 0 1px rgba(31,224,184,.3),0 10px 26px rgba(31,224,184,.18)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container-x{padding:0 24px}
  .nav-toggle{display:grid}
  .nav-links,.nav-actions{display:none}
  .nav-panel.open{position:fixed;inset:0;z-index:120;border-radius:0;border:0;
    background:rgba(8,13,22,.985);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    display:flex;flex-direction:column;align-items:stretch;padding:20px 20px 28px;overflow-y:auto}
  .nav-panel.open .nav-toggle{position:absolute;top:18px;right:18px;display:grid}
  .nav-panel.open .nav-links{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:76px;justify-content:stretch}
  .nav-panel.open .nav-item{height:auto;flex-direction:column;align-items:flex-start;gap:10px;
    padding:16px 14px;background:var(--ink-800);border:1px solid var(--line);border-radius:14px;font-size:14px}
  .nav-panel.open .nav-item.active{border-color:rgba(31,224,184,.5)}
  .nav-panel.open .nav-actions{display:flex;flex-direction:column;gap:12px;margin-top:auto;padding-top:24px}
  .nav-panel.open .nav-actions .btn{width:100%}
  body.nav-locked{overflow:hidden}
  .section{padding-top:72px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .split{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .footer-grid>.footer-col+.footer-col{border-left:0;padding-left:0}
  .hero-inner{padding:0 36px;max-width:100%}
}
@media (max-width:767px){
  .container-x{padding:0 20px}
  .section{padding-top:56px}
  .hero-banner{aspect-ratio:auto;min-height:440px}
  .hero-inner{padding:0 24px}
  .hero-strip{width:100%;flex-wrap:wrap;gap:10px}
  .hero-strip .bar{display:none}
  .stat-grid{grid-template-columns:1fr;gap:16px}
  .tl-item{padding-left:56px}
  .timeline::before{left:15px}
  .tl-node{width:32px;height:32px;font-size:12px}
  .qa-body-inner{padding:0 18px 18px 18px}
  .cta-plain{margin-top:56px;padding:40px 22px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px}
}