/* roulang page: index */
:root{
  --bg:#050A16;
  --bg-2:#0A1424;
  --primary:#2AD4FF;
  --primary-2:#6C5CE7;
  --accent:#FFB62E;
  --text:#F2F7FF;
  --text-2:#A9BAD2;
  --text-3:#6F8299;
  --line:rgba(255,255,255,.10);
  --surface:rgba(255,255,255,.045);
  --r-card:18px;
  --r-sm:14px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:8px;
  --shadow:0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(42,212,255,.25), 0 0 24px rgba(42,212,255,.28);
  --glow-accent:0 0 0 1px rgba(255,182,46,.30), 0 0 24px rgba(255,182,46,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 16px;pointer-events:none}
.dock{
  pointer-events:auto;
  width:100%;max-width:1160px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:0 10px 0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(10,20,36,.72);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  box-shadow:var(--shadow);
  transition:height .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.dock.is-scrolled{height:56px;background:rgba(10,20,36,.9);box-shadow:0 14px 44px rgba(0,0,0,.62)}
.dock-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;letter-spacing:.01em;white-space:nowrap;flex:0 0 auto}
.logo-mark{width:22px;height:22px;border-radius:50%;border:2px solid var(--primary);position:relative;flex:0 0 auto;box-shadow:0 0 14px rgba(42,212,255,.55)}
.logo-mark::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--primary)}
.dock-menu{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.dock-menu{display:flex}}
.dock-link{position:relative;display:inline-block;padding:8px 14px;border-radius:var(--r-pill);font-size:14px;color:var(--text-2);transition:color .25s,background .25s}
.dock-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.dock-link.is-active{color:var(--primary)}
.dock-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(42,212,255,.85)}
.dock-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.dock-icon{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line);color:var(--text-2);cursor:pointer;transition:.25s}
.dock-icon:hover{color:var(--primary);border-color:rgba(42,212,255,.45);background:rgba(42,212,255,.08)}
.dock-icon svg{width:17px;height:17px}
.dock-burger{width:40px;height:40px;display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:4px;border-radius:50%;border:1px solid var(--line);cursor:pointer;transition:.25s}
.dock-burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-2);transition:.25s}
.dock-burger:hover{border-color:rgba(42,212,255,.45)}
@media(min-width:1024px){.dock-burger{display:none}}

.dock-mobile{position:fixed;top:92px;left:16px;right:16px;z-index:59;padding:10px;border-radius:20px;border:1px solid var(--line);background:rgba(10,20,36,.96);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-8px);transition:.28s var(--ease)}
.dock-mobile.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.dock-mobile a{display:flex;align-items:center;height:44px;padding:0 16px;border-radius:12px;font-size:15px;color:var(--text-2);transition:.2s}
.dock-mobile a:hover,.dock-mobile a.is-active{background:rgba(255,255,255,.06);color:var(--primary)}
@media(min-width:1024px){.dock-mobile{display:none}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .28s var(--ease),background .25s,border-color .25s,color .25s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-accent{background:linear-gradient(180deg,#FFC65C,#FFA80F);color:#1A1200;box-shadow:var(--glow-accent)}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,182,46,.5),0 0 34px rgba(255,182,46,.5)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{transform:translateY(-1px);border-color:rgba(42,212,255,.5);color:var(--text)}
.btn-primary{background:rgba(42,212,255,.12);border-color:rgba(42,212,255,.45);color:#CFF3FF}
.btn-primary:hover{transform:translateY(-1px);background:rgba(42,212,255,.2);box-shadow:var(--glow)}

/* ---------- 通用 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;letter-spacing:.06em;color:var(--primary);background:rgba(42,212,255,.10);border:1px solid rgba(42,212,255,.30)}
.badge-accent{color:var(--accent);background:rgba(255,182,46,.12);border-color:rgba(255,182,46,.36)}
.section{padding:64px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:40px}
@media(min-width:1024px){.section-head{margin-bottom:56px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--primary),transparent)}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin-top:12px}
.section-head p{color:var(--text-2);font-size:15px;margin-top:14px;max-width:640px}
.card{position:relative;border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);padding:26px;box-shadow:var(--shadow);overflow:hidden;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(42,212,255,.55),transparent)}
.card:hover{transform:translateY(-4px);border-color:rgba(42,212,255,.4);box-shadow:0 16px 44px rgba(0,0,0,.55)}
.card h3{font-size:20px;font-weight:700;line-height:1.45}
.card p{color:var(--text-2);font-size:15px;margin-top:10px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:0}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:132px 0 72px}
@media(min-width:1024px){.hero{padding:168px 0 96px}}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.30}
.hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,10,22,.70) 0%,rgba(5,10,22,.86) 42%,var(--bg) 100%)}
.hero-grid-lines{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:20px 20px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 26%,#000 26%,transparent 76%);
  mask-image:radial-gradient(ellipse at 50% 26%,#000 26%,transparent 76%);
}
.hero-inner{position:relative;z-index:3;display:grid;gap:44px}
@media(min-width:1024px){.hero-inner{grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}}
.hero h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-top:18px}
.hero-sub{color:var(--text-2);font-size:16px;margin-top:18px;max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;gap:12px;margin-top:36px;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
.hero-stats::-webkit-scrollbar{display:none}
.hero-stats li{
  flex:0 0 auto;display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);
}
.hero-stats svg{width:16px;height:16px;color:var(--primary);flex:0 0 auto}
.hs-label{font-size:13px;color:var(--text-3)}
.hs-val{font-size:14px;font-weight:700;color:var(--text)}
.hero-shot{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);aspect-ratio:16/11;box-shadow:0 24px 64px rgba(0,0,0,.62),0 0 0 1px rgba(42,212,255,.12);background:var(--bg-2)}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-tag{position:absolute;left:16px;bottom:16px;padding:6px 14px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.06em;color:#CFF3FF;background:rgba(5,10,22,.72);border:1px solid rgba(42,212,255,.35);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}

/* ---------- 阶梯 ---------- */
.ladder-grid{display:grid;gap:20px}
@media(min-width:1024px){
  .ladder-grid{grid-template-columns:repeat(4,1fr);gap:24px;align-items:start}
  .ladder-card:nth-child(1){margin-top:36px}
  .ladder-card:nth-child(2){margin-top:0}
  .ladder-card:nth-child(3){margin-top:52px}
  .ladder-card:nth-child(4){margin-top:18px}
}
.ladder-card{display:flex;flex-direction:column;min-height:230px}
.ladder-num{font-size:32px;font-weight:800;line-height:1;letter-spacing:.02em;color:rgba(42,212,255,.42)}
.ladder-card h3{margin-top:16px}
.ladder-card p{flex:1}
.ladder-bar{height:3px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:22px}
.ladder-bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--primary-2))}

/* ---------- 对比 ---------- */
.compare-wrap{border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.compare-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:separate;border-spacing:0;min-width:760px}
table.compare th,table.compare td{padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
table.compare thead th{position:sticky;top:0;background:var(--bg-2);font-size:14px;letter-spacing:.04em;color:var(--text-2);font-weight:600;z-index:2}
table.compare tbody th{font-weight:600;color:var(--text);background:rgba(255,255,255,.02);width:170px}
table.compare td{color:var(--text-2)}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
.col-rec{background:rgba(42,212,255,.07)}
thead .col-rec{border-top:1px solid rgba(42,212,255,.3)}
th.col-rec,td.col-rec{border-left:1px solid rgba(42,212,255,.3);border-right:1px solid rgba(42,212,255,.3)}
tbody tr:last-child td.col-rec{border-bottom:1px solid rgba(42,212,255,.3)}
.rec-head{display:inline-flex;align-items:center;gap:8px}
.rec-badge{padding:2px 8px;border-radius:6px;font-size:11px;letter-spacing:.06em;color:#1A1200;background:var(--accent);font-weight:700}
@media(max-width:1023px){.compare-wrap{display:none}}
.compare-cards{display:grid;gap:18px}
@media(min-width:1024px){.compare-cards{display:none}}
.compare-cards .card .price{font-size:26px;font-weight:800;letter-spacing:-.01em;margin-top:14px;color:var(--text)}
.plan-feats{display:grid;gap:10px;margin-top:18px}
.plan-feats li{display:flex;gap:10px;font-size:14px;color:var(--text-2)}
.plan-feats li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);flex:0 0 auto;margin-top:9px}

/* ---------- 限时条 ---------- */
.flash{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(42,212,255,.22);background:rgba(10,20,36,.6);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow)}
.flash-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:20px 20px}
.flash-glow{position:absolute;top:50%;right:-80px;width:300px;height:300px;transform:translateY(-50%);border-radius:50%;background:radial-gradient(circle,rgba(108,92,231,.42),rgba(42,212,255,.18) 45%,transparent 70%);pointer-events:none}
.flash-body{position:relative;z-index:2;display:grid;gap:24px;padding:28px;align-items:center}
@media(min-width:1024px){.flash-body{grid-template-columns:1fr auto auto;gap:36px;padding:34px 38px}}
.flash-title{font-size:22px;font-weight:700;margin-top:12px}
.flash-body p{color:var(--text-2);font-size:14px;margin-top:8px;max-width:460px}
.countdown{display:flex;align-items:center;gap:8px}
.countdown span{display:flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:14px;border:1px solid var(--line);background:rgba(5,10,22,.7);font-size:26px;font-weight:800;letter-spacing:.02em;color:var(--primary);font-variant-numeric:tabular-nums}
.countdown i{font-style:normal;color:var(--text-3);font-weight:700}

/* ---------- 数据 ---------- */
.stat-grid{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
@media(min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat{padding:24px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);position:relative;overflow:hidden;transition:.3s var(--ease)}
.stat::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(42,212,255,.55),transparent)}
.stat:hover{border-color:rgba(42,212,255,.4);transform:translateY(-4px)}
.stat b{display:block;font-size:32px;font-weight:800;line-height:1.1;letter-spacing:-.01em;color:var(--text)}
.stat b em{font-style:normal;font-size:16px;font-weight:600;color:var(--primary);margin-left:4px}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:8px}

/* ---------- 新闻列表 ---------- */
.news-grid{display:grid;gap:22px}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:26px}}
.news-card{display:flex;flex-direction:column;border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);overflow:hidden;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);position:relative}
.news-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(42,212,255,.5),transparent);z-index:2}
.news-card:hover{transform:translateY(-4px);border-color:rgba(42,212,255,.4);box-shadow:0 16px 44px rgba(0,0,0,.55)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:17px;font-weight:700;line-height:1.5;margin-top:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--primary)}
.news-body p{color:var(--text-3);font-size:14px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.news-foot .arrow{color:var(--primary);transition:transform .25s var(--ease)}
.news-card:hover .news-foot .arrow{transform:translateX(3px)}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;padding:56px 24px;border-radius:var(--r-card);border:1px dashed var(--line);background:var(--surface);text-align:center}
.empty-state svg{width:48px;height:48px;color:var(--text-3)}
.empty-state p{font-size:14px;color:var(--text-3)}
.news-more{display:flex;justify-content:center;margin-top:44px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);overflow:hidden;transition:border-color .3s var(--ease),background .3s}
.faq-item.is-open{border-color:rgba(42,212,255,.42);background:rgba(42,212,255,.05)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 20px;text-align:left;cursor:pointer;font-size:16px;font-weight:600;line-height:1.6;color:var(--text)}
.faq-icon{width:26px;height:26px;flex:0 0 auto;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;line-height:1;color:var(--primary);transition:transform .3s var(--ease),background .3s}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(42,212,255,.14)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .38s var(--ease)}
.faq-a-inner{margin:0 20px 20px 20px;padding-left:16px;border-left:2px solid rgba(42,212,255,.5);color:var(--text-2);font-size:15px}

/* ---------- 表单 ---------- */
.consult-grid{display:grid;gap:36px}
@media(min-width:1024px){.consult-grid{grid-template-columns:.95fr 1.05fr;gap:56px;align-items:start}}
.trust-list{display:grid;gap:14px;margin-top:28px}
.trust-list li{display:flex;gap:12px;font-size:15px;color:var(--text-2)}
.trust-list li svg{width:18px;height:18px;color:var(--primary);flex:0 0 auto;margin-top:6px}
.form-card{border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);padding:26px;box-shadow:var(--shadow);position:relative;overflow:hidden}
@media(min-width:768px){.form-card{padding:32px}}
.form-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(42,212,255,.55),transparent)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:13px;color:var(--text-2)}
.input,.select,.textarea{width:100%;min-height:48px;padding:12px 14px;border-radius:var(--r-input);border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);transition:border-color .25s,box-shadow .25s,background .25s}
.textarea{min-height:112px;resize:vertical;line-height:1.7}
.input::placeholder,.textarea::placeholder{color:var(--text-3)}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(42,212,255,.18);background:rgba(255,255,255,.05)}
.select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6F8299 50%),linear-gradient(135deg,#6F8299 50%,transparent 50%);background-position:calc(100% - 20px) 22px,calc(100% - 15px) 22px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:44px}
.select option{background:#0A1424;color:var(--text)}
.input.is-error,.select.is-error,.textarea.is-error{border-color:#FF6B6B;box-shadow:0 0 0 3px rgba(255,107,107,.14)}
.err-msg{display:none;font-size:12px;color:#FF6B6B}
.err-msg.show{display:block}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);margin:6px 0 22px}
.check-row input{width:18px;height:18px;margin-top:5px;accent-color:#2AD4FF;flex:0 0 auto}
.form-note{font-size:12px;color:var(--text-3);margin-top:14px}
.form-success{display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-input);border:1px solid rgba(42,212,255,.35);background:rgba(42,212,255,.08);font-size:14px;color:#CFF3FF}
.form-success.show{display:block}

/* ---------- 页脚 ---------- */
.footer{margin-top:40px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(10,20,36,.4),rgba(5,10,22,1))}
.footer-grid{display:grid;gap:32px;padding:64px 0 40px;grid-template-columns:1fr}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding:80px 0 48px}}
.footer-brand .dock-logo{font-size:16px}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:16px;max-width:320px}
.footer h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--text);margin-bottom:18px}
.footer-links{display:grid;gap:12px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .25s,transform .25s}
.footer-links a:hover{color:var(--primary);transform:translateX(3px)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;flex-direction:column;gap:10px;font-size:13px;color:var(--text-3)}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

.to-top{position:fixed;right:20px;bottom:24px;z-index:50;width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);background:rgba(10,20,36,.85);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:var(--text-2);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:.3s var(--ease)}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{color:var(--primary);border-color:rgba(42,212,255,.45);box-shadow:var(--glow)}
.to-top svg{width:18px;height:18px}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .card:hover,.news-card:hover,.stat:hover,.btn:hover{transform:none}
  .news-card:hover .news-thumb img{transform:none}
}

/* roulang page: article */
:root{
  --bg:#050A16;
  --bg-2:#0A1424;
  --primary:#2AD4FF;
  --primary-2:#6C5CE7;
  --accent:#FFB62E;
  --text:#F2F7FF;
  --text-2:#A9BAD2;
  --text-3:#6F8299;
  --line:rgba(255,255,255,.10);
  --surface:rgba(255,255,255,.045);
  --radius-card:18px;
  --radius-inner:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow:0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(42,212,255,.25),0 0 24px rgba(42,212,255,.28);
  --glow-accent:0 0 0 1px rgba(255,182,46,.30),0 0 24px rgba(255,182,46,.30);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","HarmonyOS Sans SC","PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(700px 420px at 88% -8%,rgba(108,92,231,.20),transparent 62%),
    radial-gradient(620px 380px at 6% 4%,rgba(42,212,255,.14),transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
::selection{background:rgba(42,212,255,.32);color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
@media (min-width:768px){.container{padding:0 32px}}
.grid-lines{
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:20px 20px;
}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

/* ===== Dock 导航 ===== */
.dock-wrap{position:fixed;top:20px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 20px}
.dock{
  width:100%;max-width:1160px;height:64px;
  display:flex;align-items:center;gap:20px;
  padding:0 16px 0 20px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:rgba(10,20,36,.62);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:var(--shadow);
  transition:height .3s ease,box-shadow .3s ease,background .3s ease;
}
.dock.is-scrolled{height:56px;background:rgba(10,20,36,.86);box-shadow:0 12px 36px rgba(0,0,0,.6)}
.dock-logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;white-space:nowrap;color:var(--text)}
.logo-mark{
  width:18px;height:18px;border-radius:50%;
  border:2px solid var(--primary);
  box-shadow:0 0 12px rgba(42,212,255,.55);
  position:relative;flex:0 0 auto;
}
.logo-mark::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--accent)}
.dock-menu{display:none;align-items:center;gap:4px;list-style:none;margin-left:8px}
.dock-link{
  display:inline-block;padding:8px 12px;font-size:14px;color:var(--text-2);
  border-radius:var(--radius-badge);position:relative;transition:color .25s ease,background .25s ease;
}
.dock-link:hover{color:var(--text);background:rgba(255,255,255,.06)}
.dock-link.is-active{color:var(--text)}
.dock-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(42,212,255,.7);
}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.dock-icon{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);color:var(--text-2);cursor:pointer;
  transition:color .25s ease,border-color .25s ease,transform .2s ease;
}
.dock-icon svg{width:18px;height:18px}
.dock-icon:hover{color:var(--primary);border-color:rgba(42,212,255,.45);transform:translateY(-1px)}
.dock-burger{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:transparent;display:grid;gap:4px;place-content:center;cursor:pointer}
.dock-burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text-2);transition:transform .25s ease,opacity .25s ease}
.dock-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.dock-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.dock-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.dock-mobile{
  position:fixed;top:0;left:0;right:0;z-index:55;
  padding:92px 20px 24px;
  background:rgba(5,10,22,.96);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  transform:translateY(-120%);
  transition:transform .35s ease;
}
.dock-mobile.is-open{transform:translateY(0)}
.dock-mobile a{
  display:flex;align-items:center;height:44px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.dock-mobile a:hover,.dock-mobile a.is-active{color:var(--primary)}
.dock-mobile .mobile-cta{margin-top:16px;justify-content:center}
@media (min-width:768px){
  .dock-menu{display:flex}
  .dock-burger{display:none}
  .dock-mobile{display:none}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .3s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--accent);color:#20160A;box-shadow:var(--glow-accent)}
.btn-accent:hover{background:#FFC65C;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,182,46,.45),0 0 30px rgba(255,182,46,.42)}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:rgba(42,212,255,.45);color:var(--primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

/* ===== 文章头部 ===== */
.article-top{padding:150px 0 0;position:relative;z-index:1}
@media (min-width:768px){.article-top{padding-top:170px}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-3);transition:color .25s ease}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:rgba(255,255,255,.18)}
.crumb .current{color:var(--text-2)}
.art-head{margin-top:22px;max-width:860px}
.art-head h1{font-size:clamp(28px,4.6vw,46px);line-height:1.18;letter-spacing:-.02em;font-weight:800}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3)}
.art-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.22)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--radius-badge);border:1px solid rgba(42,212,255,.35);
  background:rgba(42,212,255,.10);color:var(--primary);
  font-size:12px;letter-spacing:.08em;font-weight:600;
}
.art-cover{margin-top:32px;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.art-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.art-caption{margin-top:12px;font-size:12px;color:var(--text-3)}

/* ===== 双栏 ===== */
.art-layout{display:grid;grid-template-columns:1fr;gap:48px;padding:56px 0 90px}
@media (min-width:1024px){
  .art-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
}
.panel{
  position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.028));
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(42,212,255,.75),transparent);
}
.panel-body{padding:28px}
@media (min-width:768px){.panel-body{padding:40px}}

/* ===== 正文排版 ===== */
.prose{max-width:760px}
.prose>*+*{margin-top:20px}
.prose h2{
  position:relative;margin-top:44px;padding-left:14px;
  font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:var(--primary);box-shadow:0 0 14px rgba(42,212,255,.7);
}
.prose h3{margin-top:32px;font-size:20px;font-weight:700;color:var(--text)}
.prose h4{margin-top:24px;font-size:17px;font-weight:600;color:var(--text)}
.prose p{font-size:16px;line-height:1.9;color:var(--text-2)}
.prose strong{color:var(--text)}
.prose a{color:var(--primary);border-bottom:1px solid rgba(42,212,255,.35);transition:border-color .25s ease,color .25s ease}
.prose a:hover{color:#7FE6FF;border-color:#7FE6FF}
.prose ul,.prose ol{padding-left:4px;list-style:none}
.prose ul li,.prose ol li{
  position:relative;padding-left:22px;margin-top:12px;font-size:16px;line-height:1.85;color:var(--text-2);
}
.prose ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(42,212,255,.6)}
.prose ol{counter-reset:li}
.prose ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.28em;width:18px;height:18px;border-radius:5px;
  display:grid;place-items:center;font-family:var(--font-num);font-size:11px;font-weight:700;
  color:var(--bg);background:var(--primary);
}
.prose blockquote{
  margin-top:28px;padding:18px 22px;border-left:3px solid var(--primary);
  background:var(--surface);border-radius:0 var(--radius-inner) var(--radius-inner) 0;
  color:var(--text-2);font-size:15.5px;
}
.prose img{border-radius:var(--radius-inner);margin-top:24px;border:1px solid var(--line)}
.prose table{width:100%;border-collapse:collapse;margin-top:24px;font-size:14.5px}
.prose .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-inner);margin-top:24px}
.prose table th{background:var(--bg-2);color:var(--text);font-weight:600;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.prose table td{padding:12px 14px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.06)}
.prose table tr:last-child td{border-bottom:0}
.prose code{font-family:var(--font-num);background:rgba(42,212,255,.10);color:var(--primary);padding:2px 6px;border-radius:6px;font-size:14px}
.prose hr{border:0;height:1px;background:var(--line);margin:36px 0}
.empty-state{text-align:center;padding:48px 20px}
.empty-state svg{width:48px;height:48px;margin:0 auto 18px;color:var(--primary);opacity:.8}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:22px}

/* ===== 标签 / 相关 ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--radius-badge);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:12.5px;color:var(--text-2);transition:color .25s ease,border-color .25s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(42,212,255,.4)}
.sec-block{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.sec-head h2{font-size:clamp(20px,2.2vw,26px)}
.sec-head span{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.mini-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.mini-grid{grid-template-columns:repeat(2,1fr)}}
.mini-card{
  border:1px solid var(--line);border-radius:var(--radius-inner);padding:20px;
  background:rgba(255,255,255,.032);transition:border-color .3s ease,transform .3s ease;
}
.mini-card:hover{border-color:rgba(42,212,255,.40);transform:translateY(-4px)}
.mini-card h3{font-size:17px;margin:10px 0 8px}
.mini-card p{font-size:14px;color:var(--text-3);line-height:1.7}
.mini-card .arrow{display:inline-block;margin-top:12px;font-size:13px;color:var(--primary);transition:transform .25s ease}
.mini-card:hover .arrow{transform:translateX(3px)}
.duo{display:grid;grid-template-columns:1fr;gap:16px;margin-top:20px}
@media (min-width:640px){.duo{grid-template-columns:repeat(2,1fr)}}
.duo a{
  display:block;border:1px solid var(--line);border-radius:var(--radius-inner);padding:18px 20px;
  background:rgba(255,255,255,.03);transition:border-color .3s ease,transform .3s ease;
}
.duo a:hover{border-color:rgba(42,212,255,.40);transform:translateY(-3px)}
.duo .k{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.duo .t{display:block;margin-top:8px;font-size:15px;font-weight:600}
.back-row{display:flex;justify-content:center;margin-top:36px}

/* ===== 侧栏 ===== */
.side{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side{position:sticky;top:100px}}
.side-card{
  border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;
  background:rgba(255,255,255,.032);position:relative;overflow:hidden;
}
.side-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(42,212,255,.6),transparent);
}
.side-card h3{font-size:15px;margin-bottom:14px;letter-spacing:.02em}
.side-toc{list-style:none;display:flex;flex-direction:column;gap:2px}
.side-toc a{display:block;padding:8px 0;font-size:14px;color:var(--text-2);border-bottom:1px solid rgba(255,255,255,.05);transition:color .25s ease,padding-left .25s ease}
.side-toc a:hover{color:var(--primary);padding-left:6px}
.side-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.side-links a{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);transition:color .25s ease}
.side-links a:hover{color:var(--primary)}
.side-links .idx{font-family:var(--font-num);font-size:12px;color:var(--text-3)}
.side-cta{
  border:1px solid rgba(255,182,46,.28);border-radius:var(--radius-card);padding:22px;
  background:linear-gradient(160deg,rgba(255,182,46,.10),rgba(255,255,255,.02));
}
.side-cta h3{font-size:16px;margin-bottom:8px}
.side-cta p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;line-height:1.7}
.side-cta .btn{width:100%}
@media (max-width:1023px){
  .art-layout{display:flex;flex-direction:column}
  .side{order:2}
}

/* ===== 页脚 ===== */
.footer{margin-top:40px;border-top:1px solid var(--line);background:rgba(6,12,24,.86);position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:64px 0 40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-3);line-height:1.75;max-width:320px}
.footer h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-3);transition:color .25s ease}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  padding:20px 0 32px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:50;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:rgba(10,20,36,.9);color:var(--text-2);display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transition:opacity .3s ease,transform .3s ease,color .25s ease,border-color .25s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--primary);border-color:rgba(42,212,255,.45);transform:translateY(-3px)}
.to-top svg{width:18px;height:18px}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}
@media (max-width:520px){
  .art-meta{font-size:12.5px}
  .panel-body{padding:22px}
  .btn{height:46px}
}

/* roulang page: category1 */
:root{
  --bg:#050A16;
  --bg-2:#0A1424;
  --primary:#2AD4FF;
  --primary-2:#6C5CE7;
  --accent:#FFB62E;
  --text:#F2F7FF;
  --text-2:#A9BAD2;
  --text-3:#6F8299;
  --line:rgba(255,255,255,.10);
  --surface:rgba(255,255,255,.045);
  --r-card:18px;
  --r-sm:14px;
  --r-input:12px;
  --r-pill:999px;
  --r-badge:8px;
  --shadow:0 8px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(42,212,255,.25), 0 0 24px rgba(42,212,255,.28);
  --glow-accent:0 0 0 1px rgba(255,182,46,.30), 0 0 24px rgba(255,182,46,.30);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){
  .container{padding:0 32px;}
}

/* ---------- 浮动 Dock 导航 ---------- */
.dock-wrap{
  position:fixed;
  top:20px;
  left:0;
  right:0;
  z-index:80;
  display:flex;
  justify-content:center;
  padding:0 16px;
  pointer-events:none;
}
.dock{
  pointer-events:auto;
  position:relative;
  width:100%;
  max-width:1160px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:0 10px 0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(10,20,36,.72);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  box-shadow:var(--shadow);
  transition:height .3s ease, box-shadow .3s ease, background .3s ease;
}
.dock.is-compact{
  height:56px;
  background:rgba(8,16,30,.86);
  box-shadow:0 14px 40px rgba(0,0,0,.62), 0 0 0 1px rgba(42,212,255,.14);
}
.dock-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.logo-mark{
  position:relative;
  width:16px;
  height:16px;
  border-radius:50%;
  border:2px solid var(--primary);
  box-shadow:0 0 12px rgba(42,212,255,.65);
  flex:none;
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:3px;
  border-radius:50%;
  background:var(--primary);
  opacity:.85;
}
.dock-menu{display:none;}
@media (min-width:768px){
  .dock-menu{display:flex;align-items:center;gap:4px;}
}
.dock-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease, background .2s ease;
}
.dock-link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.dock-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.dock-link.is-active{color:var(--text);}
.dock-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:5px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(42,212,255,.85);
}
.dock-actions{display:flex;align-items:center;gap:8px;}
.dock-icon{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:transparent;
  color:var(--text-2);
  cursor:pointer;
  transition:color .2s ease, border-color .2s ease, background .2s ease;
}
.dock-icon svg{width:18px;height:18px;}
.dock-icon:hover{color:var(--primary);border-color:rgba(42,212,255,.5);background:rgba(42,212,255,.08);}
.dock-icon:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.dock-burger{
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  gap:4px;
  border-radius:50%;
  border:1px solid var(--line);
  background:transparent;
  cursor:pointer;
}
.dock-burger span{
  display:block;
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease, opacity .25s ease;
}
.dock-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.dock-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.dock-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
@media (min-width:768px){
  .dock-burger{display:none;}
}
.dock-mobile{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  right:0;
  display:none;
  flex-direction:column;
  gap:6px;
  padding:14px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:rgba(8,16,30,.95);
  -webkit-backdrop-filter:blur(20px);
  backdrop-filter:blur(20px);
  box-shadow:var(--shadow);
}
.dock-mobile.is-open{display:flex;}
@media (min-width:768px){
  .dock-mobile{display:none !important;}
}
.dock-mobile-link{
  display:flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  border-radius:var(--r-input);
  color:var(--text-2);
  font-size:15px;
  transition:background .2s ease, color .2s ease;
}
.dock-mobile-link:hover{background:rgba(255,255,255,.06);color:var(--text);}
.dock-mobile-link.is-active{color:var(--primary);background:rgba(42,212,255,.10);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, filter .2s ease, border-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn:active{transform:translateY(1px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none;box-shadow:none;}
.btn-accent{
  background:linear-gradient(180deg,#FFC862,#FFB62E);
  color:#20160A;
  box-shadow:var(--glow-accent);
}
.btn-accent:hover{
  filter:brightness(1.08);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,182,46,.45), 0 0 32px rgba(255,182,46,.45);
}
.btn-ghost{
  border-color:var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:rgba(42,212,255,.5);
  color:var(--primary);
  background:rgba(42,212,255,.08);
  transform:translateY(-1px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 页面主视觉 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  overflow:hidden;
  background-image:
    linear-gradient(180deg, rgba(5,10,22,.88) 0%, rgba(5,10,22,.94) 55%, var(--bg) 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,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:20px 20px;
  pointer-events:none;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 85%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--text-2);}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:28px;
  padding:0 12px;
  margin-bottom:20px;
  border-radius:var(--r-badge);
  border:1px solid rgba(42,212,255,.3);
  background:rgba(42,212,255,.10);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.08em;
}
.hero-title{
  font-size:clamp(30px,5vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:20px;
  max-width:900px;
}
.hero-title em{
  font-style:normal;
  color:var(--primary);
}
.hero-lead{
  max-width:720px;
  font-size:17px;
  color:var(--text-2);
  margin-bottom:30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  padding:18px;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--surface);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  max-width:820px;
}
.stat{display:flex;flex-direction:column;gap:4px;padding-left:16px;border-left:1px solid var(--line);}
.stat:first-child{border-left:none;padding-left:0;}
.stat-label{font-size:12px;letter-spacing:.08em;color:var(--text-3);}
.stat-value{
  font-family:var(--font-num);
  font-size:26px;
  font-weight:800;
  line-height:1.1;
  letter-spacing:.01em;
  color:var(--text);
}
.stat-value small{font-size:13px;font-weight:600;color:var(--text-2);margin-left:4px;}

/* ---------- 版块通用 ---------- */
.section{padding:64px 0;}
@media (min-width:1024px){
  .section{padding:96px 0;}
}
.section-head{margin-bottom:40px;}
.section-kicker{
  display:block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--primary);
  margin-bottom:12px;
}
.section-title{
  font-size:clamp(24px,3vw,34px);
  line-height:1.25;
  font-weight:700;
  margin-bottom:14px;
}
.section-desc{max-width:680px;font-size:15px;color:var(--text-2);}

/* ---------- 目录 + 卡片墙 ---------- */
.wall-layout{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:1024px){
  .wall-layout{grid-template-columns:200px minmax(0,1fr);gap:48px;align-items:start;}
}
.toc{display:none;}
@media (min-width:1024px){
  .toc{display:block;position:sticky;top:108px;}
}
.toc-title{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--text-3);
  margin-bottom:14px;
}
.toc a{
  display:block;
  padding:9px 14px;
  border-left:2px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease, border-color .2s ease, background .2s ease, padding-left .2s ease;
}
.toc a:hover{
  color:var(--primary);
  border-color:rgba(42,212,255,.6);
  background:rgba(42,212,255,.06);
  padding-left:18px;
}
.toc a.is-current{
  color:var(--text);
  border-color:var(--primary);
  background:rgba(42,212,255,.08);
}
.toc-tip{
  margin-top:24px;
  padding:16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  font-size:13px;
  line-height:1.7;
  color:var(--text-3);
}

.group{
  padding-bottom:52px;
  margin-bottom:52px;
  border-bottom:1px solid var(--line);
}
.group:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0;}
.group-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:10px;}
.group-num{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.1em;
  padding:3px 10px;
  border-radius:var(--r-badge);
  border:1px solid rgba(42,212,255,.3);
  background:rgba(42,212,255,.08);
  color:var(--primary);
}
.group-title{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.35;}
.group-desc{font-size:14px;color:var(--text-3);margin-bottom:28px;max-width:680px;}

.cards{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){
  .cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
}

.card{
  position:relative;
  display:flex;
  flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--surface);
  overflow:hidden;
  transition:transform .3s ease-out, border-color .3s ease-out, box-shadow .3s ease-out;
}
.card::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(42,212,255,.6),transparent);
  opacity:.7;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(42,212,255,.4);
  box-shadow:var(--shadow), 0 0 0 1px rgba(42,212,255,.18);
}
.card-media{
  aspect-ratio:4/3;
  background:var(--bg-2);
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
}
.card-title{font-size:19px;font-weight:700;line-height:1.45;}
.card-text{font-size:14px;line-height:1.8;color:var(--text-2);}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:2px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.card-link .arrow{transition:transform .25s ease-out;}
.card:hover .card-link .arrow{transform:translateX(3px);}
.card-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.card-feature{grid-column:1 / -1;}
@media (min-width:768px){
  .card-feature{
    display:grid;
    grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  }
  .card-feature .card-media{height:100%;aspect-ratio:auto;min-height:260px;}
  .card-feature .card-body{align-self:center;padding:34px;}
  .card-feature .card-title{font-size:22px;}
}

.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-badge);
  border:1px solid rgba(42,212,255,.25);
  background:rgba(42,212,255,.10);
  color:var(--primary);
  font-size:12px;
  letter-spacing:.04em;
}
.badge-accent{
  border-color:rgba(255,182,46,.3);
  background:rgba(255,182,46,.10);
  color:var(--accent);
}
.badge-muted{
  border-color:var(--line);
  background:rgba(255,255,255,.05);
  color:var(--text-2);
}

/* ---------- 提示清单 ---------- */
.tips-wrap{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--surface);
  padding:8px 28px;
}
.tip-row{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:20px;
  padding:24px 0;
  border-top:1px solid var(--line);
}
.tip-row:first-child{border-top:none;}
.tip-index{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--primary);
  padding-top:4px;
}
.tip-title{font-size:17px;font-weight:600;margin-bottom:6px;}
.tip-text{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- 通栏 CTA ---------- */
.cta-section{padding:24px 0 88px;}
.cta-band{
  position:relative;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:44px;
  border-radius:var(--r-card);
  border:1px solid rgba(42,212,255,.22);
  background:
    radial-gradient(320px 220px at 92% 12%, rgba(108,92,231,.22), transparent 70%),
    linear-gradient(180deg, rgba(10,20,36,.9), rgba(5,10,22,.92));
  overflow:hidden;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:20px 20px;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px;}
.cta-title{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
}
.cta-text{font-size:15px;color:var(--text-2);}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
}
@media (min-width:640px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (min-width:1024px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-3);
  max-width:320px;
}
.footer h4{
  font-size:15px;
  font-weight:600;
  margin-bottom:16px;
  color:var(--text);
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s ease, transform .2s ease;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:20px;
  bottom:24px;
  z-index:70;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(10,20,36,.9);
  color:var(--text-2);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .25s ease, transform .25s ease, visibility .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(--primary);border-color:rgba(42,212,255,.5);}
.to-top:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.to-top svg{width:18px;height:18px;}

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

/* roulang page: category2 */
:root{
  --bg:#050A16;
  --bg-2:#0A1424;
  --primary:#2AD4FF;
  --primary-2:#6C5CE7;
  --accent:#FFB62E;
  --text:#F2F7FF;
  --text-2:#A9BAD2;
  --text-3:#6F8299;
  --line:rgba(255,255,255,.10);
  --surface:rgba(255,255,255,.045);
  --radius-card:18px;
  --radius-inner:14px;
  --radius-input:12px;
  --radius-pill:999px;
  --radius-badge:8px;
  --shadow:0 8px 30px rgba(0,0,0,.45);
  --shadow-strong:0 16px 46px rgba(0,0,0,.60);
  --glow-primary:0 0 0 1px rgba(42,212,255,.25), 0 0 24px rgba(42,212,255,.28);
  --glow-accent:0 0 0 1px rgba(255,182,46,.28), 0 0 24px rgba(255,182,46,.30);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Barlow Semi Condensed","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 460px at 82% -6%, rgba(108,92,231,.16), transparent 62%),
    radial-gradient(760px 420px at 6% 10%, rgba(42,212,255,.10), transparent 60%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,opacity .25s ease;}
p{margin:0 0 16px;}
h1,h2,h3,h4{margin:0;font-family:var(--font-cn);color:var(--text);}
h1{font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.5;font-weight:700;}
h4{font-size:17px;line-height:1.6;font-weight:600;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;position:relative;z-index:2;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- Dock 导航 ---------- */
.dock-wrap{
  position:fixed;top:20px;left:0;right:0;z-index:80;
  display:flex;justify-content:center;padding:0 16px;pointer-events:none;
}
.dock{
  pointer-events:auto;
  width:100%;max-width:1160px;height:64px;
  display:flex;align-items:center;gap:14px;
  padding:0 12px 0 20px;
  border-radius:var(--radius-pill);
  background:rgba(10,20,36,.74);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:height .3s ease,box-shadow .3s ease,background .3s ease;
}
.dock.is-shrink{height:56px;box-shadow:var(--shadow-strong);background:rgba(10,20,36,.88);}
.dock-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.01em;white-space:nowrap;}
.logo-mark{
  width:18px;height:18px;border-radius:50%;flex:0 0 auto;
  border:1.5px solid var(--primary);
  box-shadow:0 0 12px rgba(42,212,255,.55),inset 0 0 6px rgba(42,212,255,.45);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:4px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
}
.dock-menu{display:none;align-items:center;gap:6px;margin-left:14px;}
.dock-menu li{display:block;}
.dock-link{
  display:block;padding:8px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--text-2);position:relative;transition:color .25s ease,background .25s ease;
}
.dock-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.dock-link.is-active{color:var(--text);font-weight:600;}
.dock-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 0 10px rgba(42,212,255,.6);
}
.dock-actions{margin-left:auto;display:flex;align-items:center;gap:8px;}
.dock-icon{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;
}
.dock-icon svg{width:18px;height:18px;}
.dock-icon:hover{color:var(--primary);border-color:rgba(42,212,255,.45);background:rgba(42,212,255,.08);transform:translateY(-1px);}
.dock-burger{
  width:40px;height:40px;border-radius:50%;display:none;flex-direction:column;justify-content:center;align-items:center;gap:4px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.dock-burger span{display:block;width:16px;height:1.5px;background:var(--text-2);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.dock-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.dock-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.dock-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

.dock-mobile{
  position:fixed;top:0;left:0;right:0;z-index:79;
  padding:96px 20px 28px;
  background:rgba(6,12,24,.96);
  -webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);
  border-bottom:1px solid var(--line);
  transform:translateY(-104%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
}
.dock-mobile.is-open{transform:translateY(0);}
.dock-mobile a{
  display:flex;align-items:center;min-height:44px;
  font-size:15.5px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.dock-mobile a.is-active{color:var(--primary);font-weight:600;}
.dock-mobile .m-cta{
  margin-top:18px;display:flex;justify-content:center;min-height:46px;
  border-bottom:none;
}
@media (min-width:768px){
  .dock-menu{display:flex;}
  .dock-burger{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
  white-space:nowrap;
}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px;}
.btn-accent{
  background:linear-gradient(135deg,#FFC85C,#FFA70E);
  color:#1A1204;box-shadow:var(--glow-accent);
}
.btn-accent:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,182,46,.4),0 0 30px rgba(255,182,46,.42);filter:brightness(1.06);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{
  border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.03);
}
.btn-ghost:hover{border-color:rgba(42,212,255,.5);color:var(--primary);transform:translateY(-1px);box-shadow:var(--glow-primary);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;box-shadow:none;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--radius-badge);
  font-size:12px;letter-spacing:.08em;color:var(--primary);
  background:rgba(42,212,255,.10);border:1px solid rgba(42,212,255,.28);
}
.badge-accent{color:var(--accent);background:rgba(255,182,46,.10);border-color:rgba(255,182,46,.30);}
.badge-muted{color:var(--text-3);background:rgba(255,255,255,.04);border-color:var(--line);}

/* ---------- 页面顶部 ---------- */
.page-hero{
  position:relative;padding:150px 0 62px;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,22,.90) 0%,rgba(5,10,22,.94) 55%,var(--bg) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:20px 20px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 78%);
  opacity:.7;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{opacity:.55;}
.crumb .current{color:var(--text-2);}
.page-hero h1{margin:16px 0 14px;max-width:16em;}
.hero-sub{font-size:17px;color:var(--text-2);max-width:34em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;
  max-width:640px;
}
.stat{
  padding:14px 16px;border-radius:var(--radius-inner);
  background:var(--surface);border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.stat::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(42,212,255,.75),rgba(108,92,231,.35),transparent);
}
.stat b{display:block;font-family:var(--font-num);font-size:30px;font-weight:800;line-height:1.1;color:var(--text);}
.stat span{font-size:12px;letter-spacing:.08em;color:var(--text-3);}
@media (max-width:520px){
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;}
  .stat{padding:10px 10px;}
  .stat b{font-size:24px;}
  .stat span{font-size:11px;letter-spacing:.02em;}
}

/* ---------- 标签切换条 ---------- */
.chip-bar{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(10,20,36,.65);
}
.chip-inner{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0;
  scrollbar-width:none;
}
.chip-inner::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;min-height:40px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  font-size:14px;color:var(--text-2);background:rgba(255,255,255,.03);
  transition:color .25s ease,border-color .25s ease,background .25s ease,transform .25s ease;
}
.chip:hover{color:var(--primary);border-color:rgba(42,212,255,.45);background:rgba(42,212,255,.07);transform:translateY(-1px);}
.chip.is-on{color:var(--bg);background:linear-gradient(135deg,#2AD4FF,#6C5CE7);border-color:transparent;font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:70px 0;position:relative;}
@media (min-width:1024px){.section{padding:96px 0;}}
.sec-head{max-width:720px;margin-bottom:38px;}
.sec-head h2{margin:14px 0 12px;}
.sec-head p{color:var(--text-2);margin:0;}
.sec-rule{height:1px;background:linear-gradient(90deg,rgba(42,212,255,.5),rgba(255,255,255,.06) 45%,transparent);margin:0 0 38px;}

/* ---------- 卡片基础 ---------- */
.card{
  position:relative;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid var(--line);
  padding:26px 24px;overflow:hidden;
  transition:transform .3s ease-out,border-color .3s ease-out,box-shadow .3s ease-out,background .3s ease-out;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(42,212,255,.85),rgba(108,92,231,.35) 55%,transparent);
  opacity:.75;transition:opacity .3s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(42,212,255,.40);box-shadow:0 14px 40px rgba(0,0,0,.5);background:rgba(255,255,255,.06);}
.card:hover::before{opacity:1;}
.card h3{margin-bottom:10px;}
.card p{color:var(--text-2);font-size:15px;margin:0;}
.card-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--primary);display:block;margin-bottom:14px;
}

/* ---------- 四宫格 ---------- */
.grid-4-2{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.grid-4-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}}
.prep-card{display:flex;flex-direction:column;gap:12px;min-height:100%;}
.prep-top{display:flex;align-items:center;gap:12px;}
.prep-icon{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;display:grid;place-items:center;
  border:1px solid rgba(42,212,255,.32);background:rgba(42,212,255,.08);color:var(--primary);
}
.prep-icon svg{width:20px;height:20px;}
.prep-list{margin-top:4px;display:flex;flex-direction:column;gap:8px;}
.prep-list li{position:relative;padding-left:16px;font-size:14px;color:var(--text-3);line-height:1.7;}
.prep-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 8px rgba(42,212,255,.6);
}

/* ---------- 时间线 ---------- */
.flow-wrap{display:grid;grid-template-columns:1fr;gap:32px;align-items:start;}
@media (min-width:1024px){.flow-wrap{grid-template-columns:0.86fr 1.14fr;gap:44px;}}
.flow-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-2);
  aspect-ratio:4/3;
}
.flow-visual img{width:100%;height:100%;object-fit:cover;}
.flow-visual figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:44px 20px 16px;
  font-size:12px;color:var(--text-2);
  background:linear-gradient(180deg,transparent,rgba(5,10,22,.92));
}
.flow-side{margin-top:20px;display:grid;gap:12px;}
.flow-side .mini{
  display:flex;align-items:center;gap:12px;padding:14px 16px;border-radius:var(--radius-inner);
  background:var(--surface);border:1px solid var(--line);
}
.flow-side .mini b{font-family:var(--font-num);font-size:22px;font-weight:800;color:var(--accent);}
.flow-side .mini span{font-size:14px;color:var(--text-2);}

.tl{position:relative;padding-left:34px;}
.tl::before{
  content:"";position:absolute;left:11px;top:8px;bottom:14px;width:1px;
  background:linear-gradient(180deg,rgba(42,212,255,.85),rgba(108,92,231,.5) 60%,rgba(255,255,255,.06));
}
.tl-item{position:relative;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 12px rgba(42,212,255,.85),0 0 0 4px rgba(42,212,255,.10);
}
.tl-step{
  font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--text-3);display:block;margin-bottom:6px;
}
.tl-item h3{font-size:18px;margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--text-2);margin:0;}
.tl-note{
  margin-top:10px;display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--primary);letter-spacing:.04em;
}
.tl-note::before{content:"";width:14px;height:1px;background:var(--primary);display:block;}

/* ---------- 常见状况（两列，非三列） ---------- */
.grid-2{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.grid-2{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}}
.situation{padding:24px;border-radius:var(--radius-card);border:1px solid var(--line);background:rgba(255,255,255,.03);position:relative;overflow:hidden;transition:border-color .3s ease,transform .3s ease-out;}
.situation::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary),transparent);}
.situation:hover{border-color:rgba(42,212,255,.4);transform:translateY(-3px);}
.situation h3{font-size:17px;margin-bottom:10px;}
.situation p{font-size:14.5px;color:var(--text-2);margin:0 0 12px;}
.situation .tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--radius-badge);
  font-size:12px;color:var(--text-3);border:1px solid var(--line);background:rgba(255,255,255,.03);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);overflow:hidden;transition:border-color .3s ease,background .3s ease;
}
.faq-item[open]{border-color:rgba(42,212,255,.35);background:rgba(42,212,255,.045);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-ico{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;position:relative;
  border:1px solid var(--line);transition:border-color .3s ease,transform .3s ease,background .3s ease;
}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-ico::before{width:11px;height:1.5px;}
.faq-ico::after{width:1.5px;height:11px;transition:opacity .3s ease;}
.faq-item[open] .faq-ico{border-color:rgba(42,212,255,.5);background:rgba(42,212,255,.10);}
.faq-item[open] .faq-ico::after{opacity:0;}
.faq-body{
  padding:0 22px 22px 38px;position:relative;color:var(--text-2);font-size:15px;
}
.faq-body::before{
  content:"";position:absolute;left:22px;top:4px;bottom:22px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(42,212,255,.05));
}

/* ---------- 咨询 ---------- */
.consult{
  border-radius:var(--radius-card);border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(42,212,255,.07),rgba(108,92,231,.07) 52%,rgba(255,255,255,.02));
  padding:34px 26px;display:grid;gap:28px;
  position:relative;overflow:hidden;
}
@media (min-width:1024px){.consult{grid-template-columns:1fr 1fr;padding:44px 40px;gap:44px;}}
.consult::after{
  content:"";position:absolute;right:-120px;top:-120px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,182,46,.20),transparent 68%);
  pointer-events:none;
}
.consult h2{margin-bottom:14px;}
.consult p{color:var(--text-2);}
.consult-points{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.consult-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.consult-points li span.dot{
  width:8px;height:8px;border-radius:50%;margin-top:9px;flex:0 0 auto;
  background:var(--accent);box-shadow:0 0 10px rgba(255,182,46,.7);
}
.form-card{
  background:rgba(5,10,22,.62);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;position:relative;z-index:2;
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-3);letter-spacing:.04em;margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:var(--glow-primary);background:rgba(42,212,255,.05);
}
.field .hint{font-size:12px;color:var(--text-3);margin-top:6px;}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-3);margin:6px 0 18px;}
.check input{width:18px;height:18px;min-height:18px;flex:0 0 auto;margin-top:3px;accent-color:#2AD4FF;}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line);background:var(--bg-2);padding:60px 0 26px;position:relative;z-index:2;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}}
.footer-brand p{color:var(--text-3);font-size:14px;margin-top:16px;max-width:28em;}
.footer h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(10,20,36,.85);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  color:var(--text-2);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,color .3s ease,border-color .3s ease;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--primary);border-color:rgba(42,212,255,.45);}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .card:hover,.situation:hover,.btn:hover,.chip:hover{transform:none !important;}
}