/* roulang page: index */
:root{
  --bg:#070D1A;
  --bg-elevated:#0C162B;
  --surface-1:rgba(12,22,43,.86);
  --surface-2:rgba(16,32,58,.62);
  --primary:#2F6BFF;
  --primary-soft:rgba(47,107,255,.14);
  --cyan:#22E0C0;
  --cyan-soft:rgba(34,224,192,.10);
  --orange:#FF7A3D;
  --orange-soft:rgba(255,122,61,.14);
  --text:#EAF2FF;
  --text-2:#A9BCD9;
  --text-3:#7186A6;
  --border:rgba(146,180,230,.18);
  --border-strong:rgba(146,180,230,.30);
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --success:#38D996;
  --warning:#FFB84D;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --radius-xl:28px;
  --shadow-card:0 12px 32px rgba(0,0,0,.35);
  --shadow-glow:0 0 0 1px rgba(34,224,192,.40), 0 8px 24px rgba(34,224,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-w:260px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.78;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 78% -6%, rgba(47,107,255,.20), transparent 62%),
    radial-gradient(760px 460px at 8% 12%, rgba(34,224,192,.10), transparent 60%),
    linear-gradient(180deg, rgba(7,13,26,0) 0%, rgba(7,13,26,.9) 100%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--link-hover)}
h1,h2,h3,h4{font-weight:700;line-height:1.35;margin:0 0 .6em;letter-spacing:.005em}
h1{font-size:clamp(30px,4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(19px,2vw,23px)}
h4{font-size:18px}
p{margin:0 0 1em;text-align:left}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin-bottom:.4em}
button,input,select,textarea{font-family:inherit;font-size:1rem;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:1040;
  display:flex;
  flex-direction:column;
  padding:26px 20px 22px;
  background:linear-gradient(180deg,#08101F 0%,#070D1A 58%,#060B16 100%);
  border-right:1px solid var(--border);
}
.side-nav::after{
  content:"";
  position:absolute;
  top:0;right:-1px;bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(34,224,192,.55),rgba(47,107,255,.25) 40%,rgba(146,180,230,.06));
}
.brand{
  display:flex;align-items:center;gap:12px;
  padding:6px 6px 20px;
  border-bottom:1px solid var(--border);
  margin-bottom:20px;
}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),#1B3EA8 70%);
  box-shadow:0 8px 20px rgba(47,107,255,.34), inset 0 1px 0 rgba(255,255,255,.22);
  color:#fff;font-size:19px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-text span{font-size:11.5px;color:var(--text-3);letter-spacing:.06em;text-transform:uppercase}
.nav-label{font-size:11.5px;color:var(--text-3);letter-spacing:.16em;padding:0 10px 10px}
.side-menu{list-style:none;margin:0;padding:0;flex:1 1 auto;overflow-y:auto}
.side-menu li{margin-bottom:6px}
.side-menu a{
  position:relative;
  display:flex;align-items:center;gap:11px;
  padding:11px 12px 11px 14px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.side-menu a i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color .22s var(--ease)}
.side-menu a:hover{background:rgba(47,107,255,.10);color:#fff;border-color:var(--border)}
.side-menu a:hover i{color:var(--cyan)}
.side-menu a.active{
  background:rgba(34,224,192,.08);
  color:#fff;
  border-color:rgba(34,224,192,.24);
}
.side-menu a.active i{color:var(--cyan)}
.side-menu a.active::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(34,224,192,.85);
}
.side-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--border)}
.side-foot .side-contact{font-size:13px;color:var(--text-3);line-height:1.7}
.side-foot .side-contact b{color:var(--text);font-weight:600;font-size:15px;letter-spacing:.02em}

/* ---------- 按钮 ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;
  border-radius:12px;
  font-size:15.5px;font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease),background .25s var(--ease);
}
.btn-glow{
  background:linear-gradient(120deg,var(--cyan),#12B7A4 62%,#0E9C93);
  color:#04161A;
  box-shadow:var(--shadow-glow);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.07);color:#04161A}
.btn-glow:active{transform:translateY(0);filter:brightness(.98)}
.btn-orange{
  background:linear-gradient(120deg,var(--orange),#E85E24);
  color:#1A0900;
  box-shadow:0 0 0 1px rgba(255,122,61,.38), 0 8px 24px rgba(255,122,61,.22);
}
.btn-orange:hover{color:#1A0900;transform:translateY(-2px);filter:brightness(1.07)}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--border-strong);
}
.btn-ghost:hover{
  background:rgba(34,224,192,.08);
  border-color:rgba(34,224,192,.45);
  color:#fff;
  transform:translateY(-2px);
}
.btn-block{width:100%}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}

/* ---------- 布局 ---------- */
.page-wrap{margin-left:var(--nav-w);position:relative;z-index:1;min-height:100vh;display:flex;flex-direction:column}
.section{padding:96px 0;position:relative}
.section-tight{padding:72px 0}
.section-alt{background:linear-gradient(180deg,rgba(12,22,43,.55),rgba(7,13,26,0))}
.section-line{border-top:1px solid var(--border)}
.sec-head{max-width:820px;margin-bottom:44px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-soft);
  border:1px solid rgba(47,107,255,.28);
  color:#9FC0FF;font-size:12.5px;letter-spacing:.1em;
  margin-bottom:18px;
}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--text-2);margin-bottom:0;max-width:760px}
.text-accent{color:var(--cyan)}
.kw-underline{
  background:linear-gradient(180deg,transparent 62%,rgba(34,224,192,.42) 62%,rgba(34,224,192,.42) 88%,transparent 88%);
  padding:0 2px;
}

/* ---------- 移动端顶栏 ---------- */
.mobile-topbar{
  display:none;
  position:sticky;top:0;z-index:1035;
  align-items:center;justify-content:space-between;
  gap:12px;
  padding:12px 16px;
  background:rgba(8,16,31,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.mobile-topbar .brand{padding:0;border:0;margin:0}
.mobile-topbar .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:16px;border-radius:11px}
.mobile-topbar .brand-text strong{font-size:15px}
.menu-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  background:rgba(16,32,58,.72);
  border:1px solid var(--border);
  color:var(--text);
  font-size:17px;
}
.menu-btn:hover{border-color:rgba(34,224,192,.5);color:var(--cyan)}
.offcanvas{
  background:#08101F;
  color:var(--text);
  border-right:1px solid var(--border)!important;
}
.offcanvas-header{border-bottom:1px solid var(--border)}
.offcanvas .side-menu a{padding:13px 14px}
.offcanvas .btn-glow{margin-top:12px}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:104px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center right;
  opacity:.34;
  z-index:0;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,13,26,.96) 0%,rgba(7,13,26,.86) 44%,rgba(7,13,26,.52) 100%),
    radial-gradient(600px 340px at 88% 22%, rgba(34,224,192,.14), transparent 70%);
}
.hero-grid{position:relative;z-index:1}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(34,224,192,.09);
  border:1px solid rgba(34,224,192,.30);
  color:#8FF3E0;font-size:13px;margin-bottom:24px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{margin-bottom:20px;max-width:16em}
.hero-sub{
  font-size:clamp(16px,1.4vw,18px);
  color:var(--text-2);
  max-width:620px;
  line-height:1.85;
  margin-bottom:32px;
}
.hero-sub strong{color:#DCEBFF;font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;list-style:none;padding:0;margin:0}
.hero-points li{
  display:flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;
  background:rgba(16,32,58,.6);
  border:1px solid var(--border);
  color:var(--text-2);font-size:13.5px;margin:0;
}
.hero-points i{color:var(--cyan);font-size:13px}
.glass-card{
  background:var(--surface-2);
  backdrop-filter:blur(16px);
  border:1px solid rgba(146,180,230,.24);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
  padding:28px;
  position:relative;
  overflow:hidden;
}
.glass-card::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.7),transparent);
}
.board-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.board-head h3{margin:0;font-size:17px;letter-spacing:.04em}
.live-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;color:#8FF3E0;
  padding:5px 12px;border-radius:999px;
  background:rgba(34,224,192,.10);
  border:1px solid rgba(34,224,192,.3);
}
.live-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.75)}}
.board-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 0;
  border-bottom:1px dashed rgba(146,180,230,.18);
  font-size:14.5px;
}
.board-row:last-of-type{border-bottom:0}
.board-row .team{color:var(--text-2)}
.board-row .score{
  font-weight:700;font-size:19px;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.board-row .score span{color:var(--cyan)}
.board-foot{
  margin-top:20px;padding-top:18px;
  border-top:1px solid var(--border);
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  text-align:center;
}
.board-foot b{display:block;font-size:21px;color:var(--cyan);font-variant-numeric:tabular-nums}
.board-foot small{color:var(--text-3);font-size:12.5px}

/* ---------- 指标条 ---------- */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding:0;
  list-style:none;
  margin:0;
}
.metric-strip li{
  margin:0;
  padding:22px 22px 20px;
  border-radius:var(--radius-md);
  background:var(--surface-1);
  border:1px solid var(--border);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.metric-strip li:hover{border-color:rgba(34,224,192,.35);transform:translateY(-3px)}
.metric-strip b{display:block;font-size:27px;color:#fff;font-variant-numeric:tabular-nums;line-height:1.3}
.metric-strip span{font-size:13.5px;color:var(--text-3)}

/* ---------- 三步上手 ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.steps::before{
  content:"";
  position:absolute;top:34px;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg,rgba(34,224,192,.5),rgba(47,107,255,.4),rgba(255,122,61,.4));
  z-index:0;
}
.step{
  position:relative;z-index:1;
  background:var(--surface-1);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:26px 24px 24px;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.38);box-shadow:var(--shadow-card)}
.step-no{
  width:52px;height:52px;border-radius:16px;
  display:grid;place-items:center;
  font-size:18px;font-weight:700;color:#04161A;
  background:linear-gradient(140deg,var(--cyan),#11A79A);
  box-shadow:0 0 0 1px rgba(34,224,192,.4), 0 10px 24px rgba(34,224,192,.24);
  margin-bottom:20px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{color:var(--text-2);font-size:14.8px;margin-bottom:16px}
.step .step-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ---------- 分类入口非对称 ---------- */
.cat-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.cat-main{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid var(--border);
  min-height:340px;
  display:flex;align-items:flex-end;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.cat-main:hover{border-color:rgba(34,224,192,.42);transform:translateY(-4px)}
.cat-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.cat-main .shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,26,.15),rgba(7,13,26,.92));
}
.cat-main .cat-body{position:relative;z-index:1;padding:28px}
.cat-main h3{font-size:23px;margin-bottom:10px;color:#fff}
.cat-main p{color:var(--text-2);font-size:14.8px;margin-bottom:16px;max-width:520px}
.cat-side{display:grid;gap:24px}
.cat-card{
  background:var(--surface-1);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:22px;
  display:flex;gap:18px;align-items:flex-start;
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.cat-card:hover{transform:translateY(-3px);border-color:rgba(47,107,255,.42)}
.cat-card img{
  width:96px;height:96px;flex:0 0 96px;
  object-fit:cover;border-radius:14px;
  border:1px solid var(--border);
}
.cat-card h3{font-size:17.5px;margin-bottom:8px}
.cat-card p{font-size:14px;color:var(--text-2);margin-bottom:10px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12.5px;
  background:var(--primary-soft);
  color:#9FC0FF;
  border:1px solid rgba(47,107,255,.26);
}
.badge-cyan{background:var(--cyan-soft);color:#8FF3E0;border-color:rgba(34,224,192,.3)}
.badge-orange{background:var(--orange-soft);color:#FFC0A1;border-color:rgba(255,122,61,.3)}

/* ---------- 案例证明 ---------- */
.case-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:24px}
.case-main{
  background:var(--surface-1);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  overflow:hidden;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.case-main:hover{border-color:rgba(34,224,192,.36);transform:translateY(-3px)}
.case-main .case-cover{position:relative;aspect-ratio:16/8;overflow:hidden}
.case-main .case-cover img{width:100%;height:100%;object-fit:cover}
.case-main .case-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,26,0) 40%,rgba(7,13,26,.85));
}
.case-main .case-body{padding:28px}
.case-main h3{font-size:22px;margin-bottom:12px}
.case-main p{color:var(--text-2);font-size:15px;margin-bottom:20px}
.case-kpi{display:flex;flex-wrap:wrap;gap:26px;margin-bottom:20px}
.case-kpi div b{display:block;font-size:24px;color:var(--cyan);font-variant-numeric:tabular-nums}
.case-kpi div small{color:var(--text-3);font-size:13px}
.case-side{display:grid;gap:24px;align-content:start}
.case-mini{
  background:var(--surface-2);
  backdrop-filter:blur(12px);
  border:1px solid rgba(146,180,230,.22);
  border-radius:var(--radius-lg);
  padding:22px;
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.case-mini:hover{transform:translateY(-3px);border-color:rgba(255,122,61,.4)}
.case-mini h4{font-size:17px;margin:12px 0 10px}
.case-mini p{font-size:14px;color:var(--text-2);margin-bottom:12px}
.case-mini .mini-kpi{font-size:22px;font-weight:700;color:var(--orange);font-variant-numeric:tabular-nums}

/* ---------- 最新信息 CMS ---------- */
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-item{
  display:flex;flex-direction:column;
  background:var(--surface-1);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-item:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.36);box-shadow:var(--shadow-card)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#0A1striped}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.news-item:hover .news-cover img{transform:scale(1.05)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--text-3);margin-bottom:12px;flex-wrap:wrap}
.news-body h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.news-body h3 a{color:var(--text)}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{
  font-size:14.5px;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{margin-top:auto;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.news-empty{
  grid-column:1/-1;
  text-align:center;
  padding:62px 26px;
  border:1px dashed var(--border-strong);
  border-radius:var(--radius-lg);
  background:rgba(12,22,43,.5);
}
.news-empty i{font-size:34px;color:var(--text-3);display:block;margin-bottom:16px}
.news-empty p{color:var(--text-2);margin-bottom:18px;text-align:center}
.news-empty p:last-child{margin-bottom:0}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-aside h2{margin-bottom:16px}
.faq-aside p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.faq-aside .faq-note{
  padding:18px 20px;border-radius:var(--radius-md);
  background:var(--cyan-soft);
  border:1px solid rgba(34,224,192,.26);
  color:#BFF4E8;font-size:14px;
}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--border);
}
.accordion-button{
  background:transparent!important;
  color:var(--text)!important;
  font-weight:600;
  font-size:16.5px;
  padding:22px 44px 22px 26px;
  box-shadow:none!important;
  border-radius:0!important;
  position:relative;
  line-height:1.6;
}
.accordion-button::before{
  content:"";
  position:absolute;left:6px;top:50%;transform:translateY(-50%);
  width:7px;height:7px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px rgba(34,224,192,.8);
}
.accordion-button:not(.collapsed){color:var(--cyan)!important}
.accordion-button::after{
  background-image:none;
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--text-3);
  display:grid;place-items:center;
  transition:transform .25s var(--ease),color .25s var(--ease);
  width:auto;height:auto;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--cyan)}
.accordion-button:hover{color:#fff!important}
.accordion-body{
  padding:0 26px 26px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  max-width:720px;
}
.accordion-body p{margin-bottom:0}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-xl);
  overflow:hidden;
  border:1px solid rgba(146,180,230,.24);
  background:linear-gradient(120deg,rgba(12,22,43,.94),rgba(9,18,36,.9));
  padding:56px;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.2;
}
.cta-band::after{
  content:"";
  position:absolute;width:420px;height:420px;right:-120px;top:-160px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,192,.24),transparent 68%);
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{margin-bottom:16px}
.cta-copy p{color:var(--text-2);font-size:15.5px;margin-bottom:24px}
.cta-list{list-style:none;padding:0;margin:0}
.cta-list li{
  display:flex;gap:11px;align-items:flex-start;
  color:var(--text-2);font-size:15px;margin-bottom:12px;
}
.cta-list i{color:var(--cyan);margin-top:6px;font-size:13px}
.apply-card{
  background:rgba(8,16,31,.78);
  backdrop-filter:blur(14px);
  border:1px solid rgba(146,180,230,.24);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.apply-card h3{font-size:18px;margin-bottom:6px}
.apply-card .apply-hint{font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.form-control,.form-select{
  width:100%;
  background:rgba(12,22,43,.8);
  border:1px solid var(--border);
  border-radius:12px;
  color:var(--text);
  padding:12px 14px;
  font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus,.form-select:focus{
  background:rgba(12,22,43,.95);
  border-color:rgba(34,224,192,.6);
  box-shadow:0 0 0 3px rgba(34,224,192,.16);
  color:var(--text);
  outline:none;
}
.form-select option{background:#0C162B;color:var(--text)}
.privacy-note{font-size:12.5px;color:var(--text-3);margin:14px 0 0;text-align:left}
.form-feedback{margin-top:14px;font-size:14px;display:none}
.form-feedback.show{display:block}
.form-feedback.ok{color:var(--success)}
.form-feedback.err{color:#FF5C7A}

/* ---------- 页脚 ---------- */
.site-foot{
  margin-top:auto;
  background:linear-gradient(180deg,rgba(9,17,33,.6),#060B16);
  border-top:1px solid var(--border);
  padding:64px 0 28px;
  position:relative;
}
.site-foot::before{
  content:"";
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.6),rgba(47,107,255,.5),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.foot-brand .brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(140deg,var(--primary),#1B3EA8);color:#fff;font-size:17px}
.foot-brand strong{font-size:17px;color:#fff}
.foot-about{color:var(--text-2);font-size:14.5px;max-width:420px}
.foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.03em}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{color:var(--text-2);font-size:14.5px}
.foot-links a:hover{color:var(--cyan)}
.foot-contact{list-style:none;padding:0;margin:0;color:var(--text-2);font-size:14.5px}
.foot-contact li{margin-bottom:12px;display:flex;gap:10px}
.foot-contact i{color:var(--cyan);margin-top:6px;font-size:13px;width:16px}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  color:var(--text-3);font-size:13px;
}
.foot-bottom a{color:var(--text-3)}
.foot-bottom a:hover{color:var(--cyan)}
.back-top{
  position:fixed;right:24px;bottom:26px;
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(16,32,58,.86);
  border:1px solid rgba(34,224,192,.35);
  color:var(--cyan);
  z-index:1030;
  opacity:0;visibility:hidden;
  transform:translateY(10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:rgba(34,224,192,.14);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--nav-w:240px}
  .container{padding:0 22px}
  .hero{padding:88px 0 72px}
  .section{padding:80px 0}
  .case-layout{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:34px}
  .cta-band{padding:44px}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .page-wrap{margin-left:0}
  .mobile-topbar{display:flex}
  .hero{padding:64px 0 56px}
  .hero-bg{background-position:center}
  .section{padding:64px 0}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:1fr;gap:20px}
  .steps::before{display:none}
  .cat-layout{grid-template-columns:1fr}
  .news-list{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .board-foot{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:767.98px){
  body{font-size:15.5px;line-height:1.75}
  .container{padding:0 16px}
  .hero{padding:52px 0 48px}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .hero-cta{gap:10px}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{width:100%}
  .section{padding:48px 0}
  .sec-head{margin-bottom:30px}
  .metric-strip{grid-template-columns:1fr;gap:14px}
  .news-list{grid-template-columns:1fr}
  .cat-card{flex-direction:column}
  .cat-card img{width:100%;height:170px;flex:none}
  .glass-card{padding:22px}
  .board-row{font-size:14px;flex-direction:column;align-items:flex-start;gap:4px}
  .board-row .score{font-size:18px}
  .cta-band{padding:30px 22px;border-radius:var(--radius-lg)}
  .apply-card{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;gap:8px}
  .case-kpi{gap:18px}
  .back-top{right:16px;bottom:18px;width:42px;height:42px}
}
@media (max-width:520px){
  .hero-points{gap:8px}
  .hero-points li{font-size:12.8px;padding:7px 12px}
  .step{padding:22px 18px}
  .metric-strip li{padding:18px}
}

/* roulang page: category1 */
:root{
  --bg:#070D1A;
  --bg-elev:#0C162B;
  --surface:rgba(12,22,43,.86);
  --glass:rgba(16,32,58,.62);
  --blue:#2F6BFF;
  --cyan:#22E0C0;
  --orange:#FF7A3D;
  --text:#EAF2FF;
  --muted:#A9BCD9;
  --weak:#7186A6;
  --line:rgba(146,180,230,.18);
  --line-soft:rgba(146,180,230,.10);
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --ok:#38D996;
  --warn:#FFB84D;
  --danger:#FF5C7A;
  --r-btn:11px;
  --r-card:18px;
  --r-lg:24px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --shadow-soft:0 8px 22px rgba(0,0,0,.25);
  --glow:0 0 0 1px rgba(34,224,192,.4),0 8px 24px rgba(34,224,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-w:260px;
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.78;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 78% -6%,rgba(47,107,255,.20),transparent 62%),
    radial-gradient(700px 460px at 6% 96%,rgba(34,224,192,.12),transparent 60%),
    linear-gradient(180deg,#070D1A 0%,#070D1A 60%,#060B16 100%);
  z-index:-2;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
  opacity:.09;
  background-image:linear-gradient(rgba(146,180,230,.35) 1px,transparent 1px),linear-gradient(90deg,rgba(146,180,230,.35) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 78%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-decoration:none;transition:color .25s var(--ease)}
a:hover,a:focus{color:var(--link-hover)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.3;margin:0 0 .6em;letter-spacing:.005em}
p{margin:0 0 1em;text-align:left}
ul{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container{max-width:1280px;padding:0 24px;margin:0 auto;width:100%}

/* ============ 按钮 ============ */
.btn-hub{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.78rem 1.5rem;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),filter .25s var(--ease);
  white-space:nowrap;
}
.btn-hub i{font-size:14px}
.btn-primary-hub{
  background:linear-gradient(120deg,#22E0C0 0%,#2F6BFF 100%);
  color:#04101F;
  box-shadow:var(--glow);
}
.btn-primary-hub:hover,.btn-primary-hub:focus{
  color:#04101F;transform:translateY(-2px);filter:brightness(1.07);
  box-shadow:0 0 0 1px rgba(34,224,192,.55),0 12px 30px rgba(34,224,192,.3);
}
.btn-orange-hub{
  background:linear-gradient(120deg,#FF7A3D 0%,#FFB84D 100%);
  color:#20100A;
  box-shadow:0 0 0 1px rgba(255,122,61,.45),0 8px 24px rgba(255,122,61,.24);
}
.btn-orange-hub:hover,.btn-orange-hub:focus{
  color:#20100A;transform:translateY(-2px);filter:brightness(1.06);
}
.btn-ghost-hub{
  background:transparent;color:var(--text);border-color:var(--line);
}
.btn-ghost-hub:hover,.btn-ghost-hub:focus{
  background:rgba(34,224,192,.08);color:#fff;border-color:rgba(34,224,192,.45);
}
.btn-sm-hub{padding:.5rem 1rem;font-size:13.5px;border-radius:9px}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:linear-gradient(180deg,rgba(11,20,38,.96) 0%,rgba(7,13,26,.98) 100%);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:24px 18px 20px;
  z-index:1040;
  overflow-y:auto;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand:hover{color:#fff}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(34,224,192,.9),rgba(47,107,255,.9));
  color:#05101F;font-size:17px;
  box-shadow:0 6px 18px rgba(34,224,192,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-text span{font-size:10.5px;letter-spacing:.22em;color:var(--weak);text-transform:uppercase}
.nav-label{
  margin:30px 0 12px;padding-left:10px;
  font-size:11.5px;letter-spacing:.18em;color:var(--weak);text-transform:uppercase;
}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-list a{
  display:flex;align-items:center;gap:11px;
  padding:.66rem .75rem;border-radius:11px;
  color:var(--muted);font-size:14.5px;font-weight:500;
  border-left:3px solid transparent;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.nav-list a i{width:18px;text-align:center;font-size:14px;color:var(--weak);transition:color .25s var(--ease)}
.nav-list a:hover{background:rgba(47,107,255,.10);color:#fff}
.nav-list a:hover i{color:var(--cyan)}
.nav-list a.active{
  background:rgba(34,224,192,.08);
  border-left-color:var(--cyan);
  color:#fff;
  box-shadow:inset 0 0 0 1px rgba(34,224,192,.14);
}
.nav-list a.active i{color:var(--cyan)}
.side-cta{margin-top:auto;padding-top:24px}
.side-cta .btn-hub{width:100%}
.side-contact{margin-top:14px;padding:14px;border-radius:14px;border:1px solid var(--line-soft);background:rgba(12,22,43,.6)}
.side-contact p{margin:0;font-size:12.5px;color:var(--weak);line-height:1.7}
.side-contact strong{display:block;color:var(--text);font-size:15px;letter-spacing:.02em;margin-bottom:2px}

/* ============ 移动端顶栏 / offcanvas ============ */
.mobile-topbar{
  position:fixed;top:0;left:0;right:0;height:62px;
  display:none;align-items:center;justify-content:space-between;
  padding:0 16px;z-index:1050;
  background:rgba(8,14,28,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mobile-topbar .brand-text strong{font-size:15px}
.menu-btn{
  width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:rgba(16,32,58,.7);color:var(--text);font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.menu-btn:hover{background:rgba(34,224,192,.12);border-color:rgba(34,224,192,.4)}
.offcanvas.hub-drawer{background:#0A1425;color:var(--text);border-right:1px solid var(--line);width:300px}
.hub-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.hub-drawer .offcanvas-body{padding:18px 20px 26px;display:flex;flex-direction:column}
.hub-drawer .nav-list a{padding:.72rem .8rem;font-size:15px}
.hub-drawer .drawer-cta{margin-top:22px}
.hub-drawer .drawer-cta .btn-hub{width:100%}
.drawer-note{margin-top:16px;font-size:12.5px;color:var(--weak);line-height:1.7}

/* ============ 主区域 ============ */
.page-main{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.breadcrumb-bar{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(146,180,230,.4)}
.crumb .current{color:var(--cyan)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  margin:20px 0 0;
  padding:64px 0 68px;
  border-bottom:1px solid var(--line-soft);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,13,26,.94) 0%,rgba(7,13,26,.76) 46%,rgba(7,13,26,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  z-index:-1;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(115deg,rgba(34,224,192,.07) 0 2px,transparent 2px 42px),
    radial-gradient(620px 320px at 88% 18%,rgba(47,107,255,.28),transparent 68%);
  opacity:.9;
}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:44px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:.38rem .85rem;border-radius:999px;
  background:rgba(47,107,255,.14);border:1px solid rgba(47,107,255,.32);
  color:#BFD6FF;font-size:12.5px;letter-spacing:.08em;margin-bottom:18px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero h1{font-size:clamp(30px,4vw,46px);margin-bottom:.45em;letter-spacing:.01em}
.hero h1 .hl{
  background:linear-gradient(transparent 64%,rgba(34,224,192,.28) 64%);
  padding:0 .12em;
}
.hero-sub{font-size:16.5px;color:var(--muted);max-width:620px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px}
.fact-chip{
  display:flex;align-items:center;gap:10px;
  padding:.6rem .95rem;border-radius:12px;
  background:rgba(12,22,43,.72);border:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
}
.fact-chip i{color:var(--cyan);font-size:13px}
.glass-card{
  background:var(--glass);
  border:1px solid rgba(146,180,230,.24);
  border-radius:var(--r-lg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
  padding:26px 24px;
}
.glass-card .gc-title{font-size:14px;color:var(--weak);letter-spacing:.1em;margin-bottom:16px}
.score-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line-soft)}
.score-row:last-of-type{border-bottom:0}
.score-row .team{font-size:14.5px;color:var(--text);font-weight:600}
.score-row .meta{font-size:12px;color:var(--weak);margin-top:2px}
.score-num{
  font-size:21px;font-weight:700;color:var(--cyan);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.stat-box{
  border-radius:14px;padding:14px 12px;text-align:center;
  background:rgba(47,107,255,.10);border:1px solid var(--line-soft);
}
.stat-box b{display:block;font-size:22px;color:var(--orange);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-box span{font-size:12px;color:var(--weak)}

/* ============ 通用板块 ============ */
.section{padding:84px 0}
.section-alt{background:rgba(10,18,34,.55);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.sec-kicker::before{content:"";width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),rgba(34,224,192,0))}
.sec-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:.5em}
.sec-head p{color:var(--muted);margin:0}
.sec-head-inline{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;max-width:none}

/* ============ 筛选标签 ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.filter-chip{
  padding:.5rem 1rem;border-radius:999px;font-size:13.5px;
  background:rgba(47,107,255,.12);border:1px solid rgba(47,107,255,.28);
  color:#BFD6FF;transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.filter-chip:hover{background:rgba(34,224,192,.14);border-color:rgba(34,224,192,.4);color:#fff}
.filter-chip.is-on{background:rgba(34,224,192,.16);border-color:rgba(34,224,192,.5);color:#EAF2FF}

/* ============ 横向时间轴 ============ */
.timeline{position:relative;padding:12px 0 4px;margin-bottom:8px}
.timeline::before{
  content:"";position:absolute;left:26px;right:26px;top:44px;height:2px;
  background:linear-gradient(90deg,rgba(34,224,192,.55),rgba(47,107,255,.5),rgba(34,224,192,.12));
  border-radius:2px;
}
.tl-track{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;position:relative;z-index:1}
.tl-node{text-align:center}
.tl-dot{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#0C162B;border:1px solid rgba(34,224,192,.45);
  color:var(--cyan);font-weight:700;font-size:15px;
  box-shadow:0 0 0 6px rgba(12,22,43,.9),0 0 22px rgba(34,224,192,.25);
  font-variant-numeric:tabular-nums;
}
.tl-node.is-active .tl-dot{
  background:linear-gradient(135deg,#22E0C0,#2F6BFF);color:#05101F;border-color:transparent;
}
.tl-node h3{font-size:16px;margin-bottom:.35em}
.tl-node p{font-size:13.5px;color:var(--weak);margin:0;line-height:1.7}
.tl-node .tl-tag{
  display:inline-block;margin-bottom:10px;font-size:11.5px;padding:.2rem .6rem;border-radius:999px;
  background:rgba(255,122,61,.14);color:#FFC09B;border:1px solid rgba(255,122,61,.3);
}

/* ============ 赛事卡 ============ */
.match-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:24px;align-items:start}
.match-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-soft);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.match-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.34);box-shadow:var(--shadow)}
.mc-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.mc-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.match-card:hover .mc-cover img{transform:scale(1.04)}
.mc-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,13,26,.05) 40%,rgba(7,13,26,.85) 100%)}
.mc-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:.3rem .72rem;border-radius:999px;font-size:12px;
  background:rgba(47,107,255,.86);color:#fff;border:1px solid rgba(146,180,230,.35);
}
.mc-badge.orange{background:rgba(255,122,61,.9)}
.mc-body{padding:22px 24px 24px}
.mc-body h3{font-size:20px;margin-bottom:.5em;line-height:1.45}
.mc-body p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.mc-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:12.5px;color:var(--weak);border-top:1px solid var(--line-soft);padding-top:14px}
.mc-meta span i{color:var(--cyan);margin-right:6px}
.match-side{display:flex;flex-direction:column;gap:24px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-soft);
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.side-card:hover{transform:translateY(-3px);border-color:rgba(47,107,255,.4)}
.side-card h4{font-size:17px;display:flex;align-items:center;gap:9px;margin-bottom:.55em}
.side-card h4 i{color:var(--cyan);font-size:15px}
.side-card p{font-size:14px;color:var(--muted);margin:0}
.side-card .sm-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.side-card .sm-list li{display:flex;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.65}
.side-card .sm-list li i{color:var(--orange);margin-top:5px;font-size:11px}

/* ============ 适用场景 / 流程 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.scene-card{
  background:linear-gradient(180deg,rgba(16,32,58,.72),rgba(12,22,43,.72));
  border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;
  position:relative;overflow:hidden;
  transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.32)}
.scene-card .sc-icon{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,107,255,.16);border:1px solid rgba(47,107,255,.32);color:#9CC0FF;font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;margin-bottom:.5em}
.scene-card p{font-size:14px;color:var(--muted);margin:0}
.scene-card .sc-num{
  position:absolute;right:18px;top:10px;font-size:52px;font-weight:700;line-height:1;
  color:rgba(146,180,230,.09);font-variant-numeric:tabular-nums;
}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step-item{
  position:relative;padding:24px 22px;border-radius:var(--r-card);
  background:rgba(12,22,43,.7);border:1px solid var(--line);
}
.step-item::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--cyan);margin-bottom:12px;
}
.step-item h3{font-size:17px;margin-bottom:.45em}
.step-item p{font-size:13.8px;color:var(--muted);margin:0}
.step-item::after{
  content:"";position:absolute;top:42px;right:-11px;width:22px;height:2px;
  background:linear-gradient(90deg,rgba(34,224,192,.6),rgba(34,224,192,0));
}
.step-item:last-child::after{display:none}

/* ============ 指标条 ============ */
.metric-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  background:var(--glass);border:1px solid rgba(146,180,230,.22);border-radius:var(--r-lg);
  padding:28px 26px;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.metric-item{border-left:2px solid rgba(34,224,192,.4);padding-left:16px}
.metric-item b{display:block;font-size:clamp(24px,3vw,32px);font-weight:700;color:var(--text);line-height:1.2;font-variant-numeric:tabular-nums}
.metric-item b em{font-style:normal;color:var(--cyan);font-size:.6em;margin-left:3px}
.metric-item span{font-size:13px;color:var(--weak)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.4fr);gap:44px;align-items:start}
.accordion.hub-acc .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line-soft);
}
.accordion.hub-acc .accordion-button{
  background:transparent;color:var(--text);font-size:16.5px;font-weight:600;
  padding:22px 44px 22px 26px;box-shadow:none;position:relative;line-height:1.6;
}
.accordion.hub-acc .accordion-button::before{
  content:"";position:absolute;left:4px;top:30px;width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(34,224,192,.8);
}
.accordion.hub-acc .accordion-button:not(.collapsed){color:#fff;background:rgba(34,224,192,.05)}
.accordion.hub-acc .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;transform:none;color:var(--cyan);font-size:15px;
  position:absolute;right:16px;top:50%;translate:0 -50%;transition:transform .3s var(--ease);
}
.accordion.hub-acc .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg)}
.accordion.hub-acc .accordion-body{
  color:var(--muted);font-size:14.8px;padding:0 40px 26px 26px;max-width:720px;line-height:1.85;
}
.accordion.hub-acc .accordion-body p:last-child{margin-bottom:0}

/* ============ CTA + 表单 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(115deg,rgba(47,107,255,.22) 0%,rgba(12,22,43,.9) 52%,rgba(34,224,192,.16) 100%);
  border:1px solid rgba(146,180,230,.26);
  padding:44px 40px;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,192,.22),transparent 66%);
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(23px,2.8vw,30px);margin-bottom:.5em}
.cta-inner p{color:var(--muted);margin-bottom:20px}
.cta-points{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--muted)}
.cta-points span i{color:var(--cyan);margin-right:7px}
.form-panel{
  background:rgba(9,17,32,.78);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.form-panel h3{font-size:18px;margin-bottom:18px}
.form-panel .form-label{font-size:13.5px;color:var(--muted);margin-bottom:6px}
.form-panel .form-control,.form-panel .form-select{
  background:rgba(12,22,43,.82);border:1px solid var(--line);color:var(--text);
  border-radius:11px;padding:.68rem .9rem;font-size:14.5px;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease);
}
.form-panel .form-control::placeholder{color:rgba(113,134,166,.85)}
.form-panel .form-control:focus,.form-panel .form-select:focus{
  background:rgba(12,22,43,.95);border-color:rgba(34,224,192,.6);
  box-shadow:0 0 0 3px rgba(34,224,192,.16);color:var(--text);
}
.form-panel .form-select option{background:#0C162B;color:var(--text)}
.form-note{font-size:12.2px;color:var(--weak);margin:14px 0 0;line-height:1.7}

/* ============ 相关分类 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{
  display:flex;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;transition:transform .3s var(--ease),border-color .3s var(--ease),background-color .3s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(34,224,192,.34);background:rgba(16,32,58,.9)}
.rel-card .rc-ico{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,107,255,.16);border:1px solid rgba(47,107,255,.3);color:#9CC0FF;font-size:17px;
}
.rel-card strong{display:block;font-size:15.5px;color:var(--text);margin-bottom:2px}
.rel-card span{font-size:12.5px;color:var(--weak)}
.rel-card:hover strong{color:#fff}

/* ============ 页脚 ============ */
.site-foot{
  margin-top:0;padding:60px 0 26px;
  background:linear-gradient(180deg,rgba(9,16,30,.6) 0%,rgba(6,11,22,.95) 100%);
  position:relative;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.5),rgba(47,107,255,.5),transparent);
}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1.1fr);gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand strong{font-size:16.5px}
.foot-about{font-size:13.6px;color:var(--weak);line-height:1.85;max-width:520px;margin:0}
.foot-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:13.8px;color:var(--muted)}
.foot-links a:hover{color:var(--cyan)}
.foot-contact li{display:flex;gap:11px;font-size:13.8px;color:var(--muted);margin-bottom:12px;line-height:1.6}
.foot-contact li i{color:var(--cyan);margin-top:5px;font-size:12.5px;width:15px}
.foot-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.6px;color:var(--weak);
}
.foot-bottom a{color:var(--muted)}
.foot-bottom a:hover{color:var(--cyan)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(16,32,58,.82);border:1px solid rgba(34,224,192,.35);color:var(--cyan);
  box-shadow:0 0 0 1px rgba(34,224,192,.14),0 8px 22px rgba(0,0,0,.35);
  z-index:1030;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s var(--ease),background-color .25s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(34,224,192,.16);color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--nav-w:240px}
  .section{padding:64px 0}
  .hero{padding:52px 0 56px}
  .hero-inner{gap:32px}
  .metric-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-item::after{display:none}
}
@media (max-width:991px){
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .page-main{margin-left:0;padding-top:62px}
  .hero-inner{grid-template-columns:1fr}
  .match-grid{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:30px}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tl-track{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .timeline::before{display:none}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .rel-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .section{padding:48px 0}
  .hero{padding:40px 0 46px;min-height:auto}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-hub{width:100%}
  .hero-facts{gap:10px}
  .fact-chip{font-size:12.8px;padding:.5rem .8rem}
  .scene-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metric-band{grid-template-columns:1fr;padding:22px 20px}
  .tl-track{grid-template-columns:1fr;gap:20px}
  .tl-node{display:flex;gap:16px;text-align:left;align-items:flex-start}
  .tl-dot{margin:0;flex:0 0 52px;width:52px;height:52px}
  .cta-band{padding:30px 22px}
  .form-panel{padding:22px 18px}
  .sec-head-inline{align-items:flex-start}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;gap:8px}
  .match-side{gap:18px}
  .accordion.hub-acc .accordion-button{font-size:15.5px;padding:18px 38px 18px 22px}
  .accordion.hub-acc .accordion-body{padding:0 22px 22px 22px}
  .to-top{right:14px;bottom:16px;width:42px;height:42px}
}
@media (max-width:520px){
  .hero h1{font-size:28px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .mc-body{padding:18px 18px 20px}
  .mc-body h3{font-size:18px}
  .rel-card{flex-direction:row;align-items:flex-start}
}

/* roulang page: article */
:root{
  --bg:#070D1A;
  --surface:#0C162B;
  --surface-glass:rgba(16,32,58,.62);
  --border:rgba(146,180,230,.18);
  --border-soft:rgba(146,180,230,.10);
  --text:#EAF2FF;
  --text-2:#A9BCD9;
  --text-3:#7186A6;
  --primary:#2F6BFF;
  --cyan:#22E0C0;
  --orange:#FF7A3D;
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --ok:#38D996;
  --warn:#FFB84D;
  --danger:#FF5C7A;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(34,224,192,.4),0 8px 24px rgba(34,224,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-w:260px;
  --gap-sec:92px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.78;
  font-weight:400;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(47,107,255,.20), transparent 62%),
    radial-gradient(700px 460px at 6% 22%, rgba(34,224,192,.10), transparent 60%);
  background-repeat:no-repeat;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--link);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--link-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4,h5{color:var(--text);font-weight:700;letter-spacing:.2px;margin:0;}
p{margin:0 0 16px;text-align:left;text-indent:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--cyan) 0%,var(--primary) 68%);
  color:#04121F;font-size:17px;
  box-shadow:0 0 0 1px rgba(34,224,192,.35),0 8px 20px rgba(34,224,192,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:16px;color:var(--text);font-weight:700;letter-spacing:.3px;}
.brand-text span{font-size:10px;letter-spacing:2.4px;color:var(--text-3);margin-top:2px;}

/* 左侧竖向导航 */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--nav-w);z-index:1040;
  display:flex;flex-direction:column;
  padding:26px 18px 22px;
  background:linear-gradient(180deg,#0A1428 0%,#070D1A 100%);
  border-right:1px solid var(--border);
  overflow-y:auto;
}
.side-nav .brand{display:flex;align-items:center;gap:12px;padding:4px 8px 20px;border-bottom:1px solid var(--border-soft);}
.side-menu{display:flex;flex-direction:column;gap:6px;margin-top:20px;}
.side-label{font-size:11px;letter-spacing:2px;color:var(--text-3);padding:0 12px 6px;}
.side-link{
  position:relative;display:flex;align-items:center;gap:11px;
  padding:11px 13px;border-radius:12px;
  color:var(--text-2);font-size:15px;
  border:1px solid transparent;
  transition:all .25s var(--ease);
}
.side-link i{width:18px;text-align:center;font-size:14px;color:var(--text-3);transition:color .25s var(--ease);}
.side-link:hover{background:rgba(47,107,255,.12);color:#fff;border-color:rgba(47,107,255,.24);}
.side-link:hover i{color:var(--link-hover);}
.side-link.active{background:rgba(34,224,192,.08);color:#fff;border-color:rgba(34,224,192,.22);}
.side-link.active i{color:var(--cyan);}
.side-link.active::before{
  content:"";position:absolute;left:-18px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;
  background:var(--cyan);box-shadow:0 0 12px rgba(34,224,192,.85);
}
.side-foot{margin-top:auto;padding-top:22px;display:flex;flex-direction:column;gap:12px;}
.side-foot .tip{font-size:12px;color:var(--text-3);line-height:1.7;padding:0 2px;}
.side-phone{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-2);}
.side-phone i{color:var(--cyan);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  border-radius:12px;font-weight:600;font-size:15px;padding:12px 22px;
  border:1px solid transparent;cursor:pointer;transition:all .25s var(--ease);white-space:nowrap;}
.btn-glow{
  background:linear-gradient(120deg,var(--cyan) 0%,#39B9FF 100%);
  color:#04121F;box-shadow:var(--glow);
}
.btn-glow:hover{color:#04121F;transform:translateY(-2px);filter:brightness(1.07);}
.btn-ghost{
  background:transparent;border-color:var(--border);color:var(--text);
}
.btn-ghost:hover{background:rgba(34,224,192,.08);border-color:rgba(34,224,192,.45);color:#fff;transform:translateY(-2px);}
.btn-orange{
  background:linear-gradient(120deg,var(--orange) 0%,#FFA451 100%);
  color:#1A0B02;box-shadow:0 0 0 1px rgba(255,122,61,.4),0 8px 24px rgba(255,122,61,.22);
}
.btn-orange:hover{color:#1A0B02;transform:translateY(-2px);filter:brightness(1.06);}
.btn-block{width:100%;}

/* 移动端顶部导航 */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:1030;
  align-items:center;justify-content:space-between;
  padding:12px 18px;
  background:rgba(10,20,40,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.mobile-topbar .brand{display:flex;align-items:center;gap:10px;}
.menu-btn{
  width:42px;height:42px;border-radius:12px;
  background:rgba(34,224,192,.10);border:1px solid rgba(34,224,192,.30);
  color:var(--cyan);font-size:17px;cursor:pointer;transition:all .25s var(--ease);
}
.menu-btn:hover{background:rgba(34,224,192,.18);}
.offcanvas{background:#0A1428;color:var(--text);border-right:1px solid var(--border);}
.offcanvas-header{border-bottom:1px solid var(--border-soft);padding:18px 20px;}
.offcanvas-title{font-size:16px;font-weight:700;}
.offcanvas-body{padding:18px 20px;}
.offcanvas .side-link{padding:13px 14px;}
.btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.7;}

/* 主体 */
.site-main{margin-left:var(--nav-w);min-height:100vh;}

/* 文章头部 */
.article-hero{
  position:relative;overflow:hidden;
  padding:38px 0 46px;
  background-image:linear-gradient(180deg,rgba(7,13,26,.78),rgba(7,13,26,.94)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border-soft);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(146,180,230,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(146,180,230,.06) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;
}
.article-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{color:var(--text-3);opacity:.6;}
.crumb .cur{color:var(--cyan);}
.badge-cat{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(47,107,255,.16);color:#9DC0FF;
  border:1px solid rgba(47,107,255,.32);
}
.article-title{
  font-size:clamp(24px,2.9vw,38px);
  line-height:1.36;margin:16px 0 18px;max-width:940px;
}
.article-title::after{
  content:"";display:block;width:76px;height:3px;margin-top:18px;border-radius:3px;
  background:linear-gradient(90deg,var(--cyan),var(--primary));
  box-shadow:0 0 14px rgba(34,224,192,.5);
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13px;color:var(--text-3);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--cyan);font-size:12px;}

/* 正文区 */
.article-section{padding:56px 0 var(--gap-sec);}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:34px;}
.article-main{min-width:0;}
.article-panel{
  background:linear-gradient(180deg,rgba(12,22,43,.86),rgba(12,22,43,.62));
  border:1px solid var(--border);border-radius:var(--r-lg);
  padding:34px 34px 40px;box-shadow:var(--shadow);
}
.article-body{max-width:820px;font-size:16px;line-height:1.88;color:var(--text-2);word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:clamp(20px,2.2vw,25px);color:var(--text);
  margin:38px 0 16px;padding-left:15px;position:relative;line-height:1.5;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),var(--primary));
  box-shadow:0 0 12px rgba(34,224,192,.55);
}
.article-body h3{font-size:19px;color:var(--text);margin:28px 0 12px;}
.article-body h4{font-size:17px;color:var(--text);margin:22px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body strong{color:var(--text);}
.article-body a{color:var(--link);text-decoration:underline;text-decoration-color:rgba(94,160,255,.4);text-underline-offset:3px;}
.article-body a:hover{color:var(--link-hover);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
.article-body ul li{list-style:disc;margin-bottom:9px;}
.article-body ol li{list-style:decimal;margin-bottom:9px;}
.article-body ul li::marker,.article-body ol li::marker{color:var(--cyan);}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;
  border-left:3px solid var(--cyan);border-radius:0 14px 14px 0;
  background:rgba(34,224,192,.07);color:var(--text);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:22px 0;border:1px solid var(--border);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:9px;}
.article-body table{width:100%;border-collapse:collapse;font-size:14.5px;margin:20px 0;min-width:520px;}
.article-body table th,.article-body table td{padding:11px 14px;border:1px solid var(--border);text-align:left;}
.article-body table th{background:rgba(47,107,255,.14);color:var(--text);font-weight:600;}
.article-body table tr:nth-child(even) td{background:rgba(146,180,230,.04);}
.article-body .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.article-body hr{border:0;border-top:1px solid var(--border-soft);margin:30px 0;}
.article-body code{
  background:rgba(47,107,255,.14);color:#A9C8FF;padding:2px 7px;border-radius:6px;font-size:14px;
}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 22px;
  border:1px dashed var(--border);border-radius:var(--r-md);
  background:rgba(12,22,43,.5);
}
.empty-state i{font-size:34px;color:var(--cyan);opacity:.85;}
.empty-state h3{font-size:20px;margin:16px 0 10px;}
.empty-state p{color:var(--text-3);font-size:14.5px;max-width:520px;margin:0 auto 20px;text-align:center;}

/* 目录 */
.toc-wrap{display:none;}
.toc-card{
  position:sticky;top:28px;
  background:rgba(16,32,58,.62);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:18px;
  padding:20px 18px;box-shadow:var(--shadow);
}
.toc-head{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:600;color:var(--text);padding-bottom:12px;border-bottom:1px solid var(--border-soft);}
.toc-head i{color:var(--cyan);}
.toc-list{margin-top:12px;max-height:56vh;overflow-y:auto;}
.toc-list a{
  display:block;font-size:13.5px;line-height:1.6;color:var(--text-2);
  padding:7px 10px;border-radius:9px;border-left:2px solid transparent;
  transition:all .2s var(--ease);
}
.toc-list a.lv3{padding-left:22px;font-size:13px;color:var(--text-3);}
.toc-list a:hover{background:rgba(47,107,255,.12);color:#fff;}
.toc-list a.active{border-left-color:var(--cyan);background:rgba(34,224,192,.09);color:#fff;}
.toc-empty{font-size:13px;color:var(--text-3);padding:10px 2px;}

/* 标签 / 说明 */
.article-foot{margin-top:30px;padding-top:24px;border-top:1px solid var(--border-soft);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-list .tag-label{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:7px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;font-size:13px;
  background:rgba(47,107,255,.12);color:#9DC0FF;border:1px solid rgba(47,107,255,.24);
  transition:all .22s var(--ease);
}
.tag:hover{background:rgba(34,224,192,.14);color:#BDFFF3;border-color:rgba(34,224,192,.4);}
.source-note{
  margin-top:22px;font-size:13px;color:var(--text-3);line-height:1.8;
  padding:14px 16px;border-radius:12px;background:rgba(146,180,230,.05);
  border:1px solid var(--border-soft);
}

/* 内联 CTA */
.inline-cta{
  margin-top:34px;padding:26px 28px;border-radius:var(--r-lg);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  background:rgba(16,32,58,.62);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
}
.inline-cta h3{font-size:19px;margin-bottom:6px;}
.inline-cta p{margin:0;font-size:14px;color:var(--text-3);}
.inline-cta .acts{display:flex;flex-wrap:wrap;gap:12px;}

/* 相关推荐 */
.related-sec{padding:0 0 var(--gap-sec);}
.sec-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:26px;}
.sec-head h2{font-size:clamp(21px,2.4vw,28px);}
.sec-head .sub{font-size:14px;color:var(--text-3);}
.related-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:linear-gradient(180deg,rgba(16,32,58,.72),rgba(12,22,43,.6));
  border:1px solid var(--border);border-radius:var(--r-md);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.38);box-shadow:0 16px 38px rgba(0,0,0,.42);}
.related-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,26,.06),rgba(7,13,26,.72));
}
.related-body{padding:18px 20px 22px;}
.related-body .badge-cat{font-size:12px;padding:4px 11px;}
.related-body h3{font-size:17px;line-height:1.55;margin:12px 0 9px;}
.related-body h3 a{color:var(--text);}
.related-body h3 a:hover{color:var(--cyan);}
.related-body p{font-size:14px;color:var(--text-3);margin:0;line-height:1.75;}
.related-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;font-size:12.5px;color:var(--text-3);}
.related-foot i{color:var(--cyan);}
.related-lead .related-body h3{font-size:20px;}

/* 返回列表 */
.back-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:40px;}

/* 页脚 */
.site-foot{
  border-top:1px solid transparent;
  background:linear-gradient(180deg,#09122A 0%,#070D1A 100%);
  background-image:linear-gradient(180deg,#09122A 0%,#070D1A 100%);
  position:relative;padding:64px 0 26px;margin-top:0;
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.7),rgba(47,107,255,.7),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{font-size:16px;color:var(--text);}
.foot-about{font-size:14px;color:var(--text-3);line-height:1.85;max-width:440px;margin:0;}
.foot-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.6px;}
.foot-links li,.foot-contact li{margin-bottom:11px;font-size:14px;}
.foot-links a{color:var(--text-3);}
.foot-links a:hover{color:var(--cyan);}
.foot-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--text-3);}
.foot-contact i{color:var(--cyan);margin-top:5px;font-size:13px;}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--border-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.foot-bottom a{color:var(--link);}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1050;
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(16,32,58,.72);border:1px solid var(--border);
  color:var(--cyan);cursor:pointer;backdrop-filter:blur(12px);
  transition:all .25s var(--ease);opacity:0;pointer-events:none;
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:rgba(34,224,192,.14);transform:translateY(-3px);box-shadow:var(--glow);}

@media (min-width:768px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1199.98px){
  .toc-wrap{display:none;}
  .article-body{max-width:100%;}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,860px) 288px;gap:36px;}
  .toc-wrap{display:block;}
  .related-grid{grid-template-columns:1.35fr 1fr 1fr;}
}
@media (max-width:1199.98px) and (min-width:992px){
  :root{--nav-w:240px;}
}
@media (max-width:991.98px){
  :root{--gap-sec:64px;--nav-w:0px;}
  .side-nav{display:none;}
  .site-main{margin-left:0;}
  .mobile-topbar{display:flex;}
  .article-panel{padding:24px 20px 28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--gap-sec:52px;}
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15.5px;}
  .article-hero{padding:28px 0 34px;}
  .article-section{padding:36px 0 var(--gap-sec);}
  .article-body{font-size:15.5px;line-height:1.85;}
  .article-body table{min-width:460px;}
  .inline-cta{padding:20px;}
  .inline-cta .acts{width:100%;}
  .inline-cta .acts .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{flex-direction:column;}
  .to-top{right:14px;bottom:16px;}
}

/* roulang page: category2 */
:root{
  --bg:#070D1A;
  --surface:#0C162B;
  --surface-2:#10203A;
  --glass:rgba(16,32,58,.62);
  --primary:#2F6BFF;
  --accent:#22E0C0;
  --orange:#FF7A3D;
  --text:#EAF2FF;
  --muted:#A9BCD9;
  --dim:#7186A6;
  --border:rgba(146,180,230,.18);
  --border-strong:rgba(146,180,230,.32);
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --success:#38D996;
  --warning:#FFB84D;
  --danger:#FF5C7A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --shadow-hover:0 20px 48px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(34,224,192,.4), 0 8px 24px rgba(34,224,192,.22);
  --nav-w:260px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 88% -8%, rgba(47,107,255,.18), transparent 60%),
    radial-gradient(900px 520px at 6% 110%, rgba(34,224,192,.10), transparent 62%),
    linear-gradient(180deg,#070D1A 0%,#080F20 55%,#070D1A 100%);
  background-color:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(146,180,230,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(146,180,230,.055) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
}
a{color:var(--link);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--link-hover);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.28;letter-spacing:.2px;}
h1{font-size:clamp(30px,4vw,46px);}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:clamp(19px,2.2vw,23px);}
h4{font-size:18px;}
p{margin:0 0 1em;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);z-index:1030;
  display:flex;flex-direction:column;
  padding:22px 18px 18px;
  background:linear-gradient(180deg,#0A1densely 0%, #0A1densely 100%);
  background:linear-gradient(180deg,#0A1428 0%, #070D1A 100%);
  border-right:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);margin-bottom:26px;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--primary));
  color:#04121F;font-size:17px;
  box-shadow:0 8px 20px rgba(34,224,192,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-text strong{font-size:16px;font-weight:700;white-space:nowrap;}
.brand-text span{font-size:11px;letter-spacing:2.4px;color:var(--dim);}
.side-menu{flex:1 1 auto;overflow-y:auto;margin:0 -6px;padding:0 6px;}
.side-label{display:block;font-size:12px;letter-spacing:1.6px;color:var(--dim);margin:0 0 10px 12px;}
.side-link{
  position:relative;display:block;padding:11px 14px 11px 18px;margin-bottom:6px;
  border-radius:12px;color:var(--muted);font-size:15px;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.side-link::before{
  content:"";position:absolute;left:4px;top:50%;transform:translateY(-50%) scaleY(.2);
  width:3px;height:20px;border-radius:3px;background:var(--accent);
  box-shadow:0 0 12px rgba(34,224,192,.8);opacity:0;transition:all .25s var(--ease);
}
.side-link:hover{background:rgba(47,107,255,.10);color:var(--text);transform:translateX(2px);}
.side-link.active{background:rgba(34,224,192,.08);color:#fff;font-weight:600;}
.side-link.active::before{opacity:1;transform:translateY(-50%) scaleY(1);}
.side-foot{border-top:1px solid var(--border);padding-top:16px;margin-top:12px;}
.side-tip{margin:12px 0 0;font-size:12.5px;color:var(--dim);line-height:1.7;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;letter-spacing:.3px;
  padding:12px 24px;border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-glow{
  background:linear-gradient(135deg,#22E0C0,#2F6BFF);color:#04121F;
  box-shadow:var(--glow);
}
.btn-glow:hover{color:#04121F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(34,224,192,.5),0 14px 30px rgba(34,224,192,.3);}
.btn-glow:active{transform:translateY(0);}
.btn-orange{
  background:linear-gradient(135deg,#FF7A3D,#FFB84D);color:#1A0A02;
  box-shadow:0 0 0 1px rgba(255,122,61,.45),0 10px 26px rgba(255,122,61,.24);
}
.btn-orange:hover{color:#1A0A02;transform:translateY(-2px);filter:brightness(1.06);}
.btn-ghost{
  background:transparent;border-color:var(--border-strong);color:var(--text);
}
.btn-ghost:hover{background:rgba(34,224,192,.08);border-color:rgba(34,224,192,.55);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:14px 30px;font-size:16px;}

/* ============ 顶栏（移动端） ============ */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:1040;
  align-items:center;justify-content:space-between;
  padding:12px 18px;
  background:rgba(9,17,33,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.mobile-topbar .brand{margin:0;}
.menu-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border-strong);
  background:rgba(16,32,58,.7);color:var(--text);font-size:18px;
  display:grid;place-items:center;cursor:pointer;transition:all .25s var(--ease);
}
.menu-btn:hover{background:rgba(34,224,192,.12);border-color:rgba(34,224,192,.5);color:#fff;}
.mobile-menu{background:#0A1428;color:var(--text);border-left:1px solid var(--border);width:min(340px,88vw);}
.mobile-menu .offcanvas-header{border-bottom:1px solid var(--border);}
.mobile-menu .offcanvas-title{font-size:16px;font-weight:700;}
.mobile-links li{margin-bottom:8px;}
.mobile-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:12px;color:var(--muted);
  background:rgba(16,32,58,.5);border:1px solid var(--border);font-size:15px;
}
.mobile-links a:hover{color:#fff;border-color:rgba(34,224,192,.45);}
.mobile-links a.active{color:#fff;background:rgba(34,224,192,.1);border-color:rgba(34,224,192,.5);}

/* ============ 主体框架 ============ */
.app-shell{margin-left:var(--nav-w);position:relative;z-index:1;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--dim);}
.crumb a:hover{color:var(--link-hover);}
.crumb .current{color:var(--accent);}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  border-bottom:1px solid var(--border);
  background-image:linear-gradient(100deg, rgba(7,13,26,.94) 32%, rgba(7,13,26,.62) 100%), url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(34,224,192,.16);box-shadow:inset 0 0 0 40px rgba(47,107,255,.05);
  pointer-events:none;
}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(47,107,255,.14);border:1px solid rgba(94,160,255,.32);color:#9CC4FF;
  margin-bottom:18px;
}
.page-hero h1{margin-bottom:16px;}
.page-hero .hero-sub{font-size:17px;max-width:640px;color:var(--muted);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.glass-card{
  background:var(--glass);
  backdrop-filter:blur(16px);
  border:1px solid rgba(146,180,230,.26);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  padding:22px;
}
.hero-stats{display:grid;gap:14px;}
.stat-line{display:flex;align-items:center;gap:14px;padding-bottom:14px;border-bottom:1px dashed rgba(146,180,230,.2);}
.stat-line:last-child{border-bottom:0;padding-bottom:0;}
.stat-line .ico{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(34,224,192,.12);color:var(--accent);font-size:16px;
}
.stat-line strong{display:block;font-size:18px;color:#fff;font-variant-numeric:tabular-nums;}
.stat-line span{font-size:13px;color:var(--dim);}

/* ============ 板块标题 ============ */
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;color:var(--accent);
  margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{margin-bottom:12px;}
.section-head p{margin:0;font-size:16px;}
.hl-underline{
  background:linear-gradient(90deg,var(--accent),rgba(34,224,192,0));
  background-size:100% 3px;background-repeat:no-repeat;background-position:0 100%;
  padding-bottom:4px;
}

/* ============ 项目卡 ============ */
.project-card{
  position:relative;display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(16,32,58,.85),rgba(12,22,43,.92));
  border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;height:100%;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.project-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.38);box-shadow:var(--shadow-hover);}
.project-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
.project-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.project-card:hover .cover img{transform:scale(1.05);}
.project-card .cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,26,0) 40%,rgba(7,13,26,.9) 100%);
}
.project-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.project-card h3{margin-bottom:10px;font-size:21px;}
.project-card p{font-size:14.5px;margin-bottom:16px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(47,107,255,.14);color:#9CC4FF;border:1px solid rgba(94,160,255,.24);
}
.badge.badge-accent{background:rgba(34,224,192,.12);color:#7BEFDA;border-color:rgba(34,224,192,.3);}
.badge.badge-orange{background:rgba(255,122,61,.13);color:#FFB08A;border-color:rgba(255,122,61,.3);}
.card-meta{
  display:flex;flex-wrap:wrap;gap:16px;margin-top:auto;padding-top:16px;
  border-top:1px solid var(--border);font-size:13px;color:var(--dim);
}
.card-meta i{color:var(--accent);margin-right:6px;}
.project-card.compact .cover{aspect-ratio:21/9;}
.project-card.compact h3{font-size:18px;}
.stack-2{display:grid;gap:24px;height:100%;grid-auto-rows:1fr;}
.project-card.featured .cover{aspect-ratio:21/10;}
.project-card.featured .body{padding:26px 28px 28px;}
.featured-flag{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:linear-gradient(135deg,#FF7A3D,#FFB84D);color:#1A0A02;
}

/* ============ 筛选标签 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.filter-btn{
  padding:9px 20px;border-radius:999px;font-size:14px;font-weight:600;cursor:pointer;
  background:rgba(16,32,58,.7);border:1px solid var(--border);color:var(--muted);
  transition:all .25s var(--ease);
}
.filter-btn:hover{color:#fff;border-color:rgba(34,224,192,.45);}
.filter-btn.is-active{
  background:linear-gradient(135deg,rgba(34,224,192,.2),rgba(47,107,255,.2));
  border-color:rgba(34,224,192,.6);color:#fff;box-shadow:0 0 0 1px rgba(34,224,192,.25);
}
.grid-card{
  background:linear-gradient(180deg,rgba(16,32,58,.8),rgba(12,22,43,.92));
  border:1px solid var(--border);border-radius:var(--r-card);padding:24px;height:100%;
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.grid-card:hover{transform:translateY(-4px);border-color:rgba(47,107,255,.45);box-shadow:var(--shadow-hover);}
.grid-card .ico-box{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(47,107,255,.14);color:#8CB8FF;font-size:18px;margin-bottom:16px;
}
.grid-card h3{font-size:19px;margin-bottom:10px;}
.grid-card p{font-size:14.5px;margin-bottom:14px;}
.grid-card .facts{font-size:13px;color:var(--dim);border-top:1px solid var(--border);padding-top:14px;display:grid;gap:6px;}
.grid-card .facts i{color:var(--accent);margin-right:8px;}
.empty-tip{
  display:none;text-align:center;padding:40px 20px;border:1px dashed var(--border-strong);
  border-radius:var(--r-card);color:var(--dim);font-size:14.5px;
}
.empty-tip.show{display:block;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
}
.stat-cell{background:linear-gradient(180deg,rgba(12,22,43,.96),rgba(9,17,33,.96));padding:28px 26px;}
.stat-cell strong{
  display:block;font-size:clamp(26px,3vw,34px);font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:6px;
}
.stat-cell strong em{font-style:normal;font-size:16px;color:var(--accent);margin-left:4px;}
.stat-cell span{font-size:13.5px;color:var(--dim);}

/* ============ 流程时间轴 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.flow::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(34,224,192,.55),rgba(47,107,255,.45),rgba(34,224,192,.1));
}
.flow-step{position:relative;padding-top:0;}
.flow-dot{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:#0C162B;border:1px solid rgba(34,224,192,.5);color:var(--accent);
  font-weight:700;font-size:15px;margin-bottom:18px;position:relative;z-index:1;
  box-shadow:0 0 0 6px rgba(34,224,192,.06),0 0 22px rgba(34,224,192,.25);
  font-variant-numeric:tabular-nums;
}
.flow-step h4{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:rgba(12,22,43,.7);border:1px solid var(--border);border-radius:16px !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:600;
  padding:20px 24px 20px 48px;position:relative;box-shadow:none;
}
.accordion-button::before{
  content:"";position:absolute;left:24px;top:50%;transform:translateY(-50%);
  width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 12px rgba(34,224,192,.85);
}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--dim);font-size:14px;transition:transform .3s var(--ease),color .3s var(--ease);
}
.accordion-button:not(.collapsed){color:#fff;background:rgba(34,224,192,.06);}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--accent);}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-body{padding:0 24px 22px 48px;color:var(--muted);font-size:15px;max-width:720px;line-height:1.85;}

/* ============ 相关分类 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  display:block;padding:26px;border-radius:var(--r-card);
  background:linear-gradient(180deg,rgba(16,32,58,.8),rgba(12,22,43,.92));
  border:1px solid var(--border);color:var(--text);
  transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.4);box-shadow:var(--shadow-hover);color:#fff;}
.related-card h3{font-size:18px;margin-bottom:8px;}
.related-card p{font-size:14px;margin:0;color:var(--dim);}
.related-card .go{margin-top:16px;font-size:13.5px;color:var(--accent);display:inline-flex;gap:8px;align-items:center;}

/* ============ CTA / 表单 ============ */
.cta-band{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:48px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(16,32,58,.95) 0%,rgba(11,22,44,.95) 60%,rgba(20,42,74,.95) 100%);
  border:1px solid var(--border);box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,192,.16),transparent 68%);
}
.cta-band h2{margin-bottom:14px;}
.cta-band p{font-size:15.5px;}
.cta-list{display:grid;gap:10px;margin:22px 0 0;}
.cta-list li{font-size:14.5px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;}
.cta-list i{color:var(--accent);margin-top:6px;}
.form-card{
  background:rgba(8,15,30,.82);border:1px solid var(--border-strong);
  border-radius:var(--r-card);padding:28px;
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--dim);margin-bottom:20px;}
.form-label{font-size:14px;color:var(--muted);margin-bottom:8px;display:block;}
.form-control,.form-select{
  width:100%;padding:12px 16px;border-radius:12px;font-size:15px;
  background:rgba(12,22,43,.8);border:1px solid var(--border);color:var(--text);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.form-control::placeholder{color:#5D7092;}
.form-control:focus,.form-select:focus{
  background:rgba(12,22,43,.95);color:#fff;border-color:rgba(34,224,192,.65);
  box-shadow:0 0 0 3px rgba(34,224,192,.16);outline:none;
}
.form-select option{background:#0C162B;color:var(--text);}
.mb-field{margin-bottom:16px;}
.form-privacy{font-size:12.5px;color:var(--dim);margin:14px 0 0;line-height:1.7;}
.form-feedback{margin-top:12px;font-size:13.5px;color:var(--success);display:none;}
.form-feedback.show{display:block;}

/* ============ 页脚 ============ */
.site-foot{
  border-top:1px solid var(--border);padding:64px 0 28px;margin-top:20px;
  background:linear-gradient(180deg,rgba(9,17,33,.55),rgba(7,13,26,.95));
  position:relative;
}
.site-foot::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.6),rgba(47,107,255,.55),transparent);
}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:48px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand strong{font-size:16px;}
.foot-about{font-size:14px;color:var(--dim);max-width:440px;line-height:1.85;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links li{margin-bottom:10px;}
.foot-links a{color:var(--dim);font-size:14px;}
.foot-links a:hover{color:var(--accent);}
.foot-links a.active{color:var(--accent);}
.foot-contact li{display:flex;gap:10px;align-items:center;color:var(--dim);font-size:14px;margin-bottom:12px;}
.foot-contact i{color:var(--accent);width:16px;text-align:center;}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.foot-bottom a{color:var(--dim);}
.foot-bottom a:hover{color:var(--accent);}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1050;
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(16,32,58,.85);border:1px solid rgba(34,224,192,.35);
  color:var(--accent);cursor:pointer;opacity:0;pointer-events:none;
  transition:all .3s var(--ease);backdrop-filter:blur(10px);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{background:rgba(34,224,192,.16);transform:translateY(-3px);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--nav-w:240px;}
  .section{padding:72px 0;}
  .cta-band{padding:40px;gap:36px;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
  .mobile-topbar{display:flex;}
  .app-shell{margin-left:0;}
  .page-hero{padding:44px 0 52px;}
  .section{padding:56px 0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px;}
  .flow::before{display:none;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .project-card.featured .body{padding:22px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-cell{padding:22px;}
  .flow{grid-template-columns:1fr;}
  .accordion-button{padding:18px 18px 18px 42px;font-size:15px;}
  .accordion-button::before{left:18px;}
  .accordion-body{padding:0 18px 20px 42px;}
  .cta-band{padding:28px 22px;}
  .form-card{padding:22px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .to-top{right:14px;bottom:16px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  h2{font-size:22px;}
  .brand-text strong{font-size:15px;}
  .section-head{margin-bottom:28px;}
}

/* roulang page: category4 */
:root{
  --bg:#070D1A;
  --surface:#0C162B;
  --surface-2:rgba(16,32,58,.62);
  --brand:#2F6BFF;
  --cyan:#22E0C0;
  --orange:#FF7A3D;
  --text:#EAF2FF;
  --muted:#A9BCD9;
  --weak:#7186A6;
  --line:rgba(146,180,230,.18);
  --line-soft:rgba(146,180,230,.10);
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --ok:#38D996;
  --warn:#FFB84D;
  --danger:#FF5C7A;
  --r-btn:12px;
  --r-card:18px;
  --r-lg:24px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --shadow-sm:0 8px 20px rgba(0,0,0,.28);
  --glow:0 0 0 1px rgba(34,224,192,.4),0 8px 24px rgba(34,224,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-w:260px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(620px 420px at 12% -6%,rgba(47,107,255,.16),transparent 70%),
    radial-gradient(560px 380px at 92% 8%,rgba(34,224,192,.10),transparent 72%),
    linear-gradient(rgba(146,180,230,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(146,180,230,.045) 1px,transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.35;margin:0;letter-spacing:.2px}
p{margin:0}
a{color:var(--link);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--link-hover)}
img{max-width:100%;display:block}
ul{list-style:none;margin:0;padding:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1280px;padding:0 24px;margin:0 auto}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  z-index:1040;
  display:flex;
  flex-direction:column;
  padding:22px 16px 20px;
  background:linear-gradient(180deg,#0A1428 0%,#070D1A 62%,#060B16 100%);
  border-right:1px solid var(--line);
  box-shadow:8px 0 32px rgba(0,0,0,.35);
}
.brand{display:flex;align-items:center;gap:12px;padding:6px 8px 18px;border-bottom:1px solid var(--line-soft);color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#1B45B8 60%,var(--cyan));
  color:#fff;font-size:18px;
  box-shadow:0 8px 20px rgba(47,107,255,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.3px}
.brand-text span{font-size:11px;color:var(--weak);letter-spacing:2.2px;text-transform:uppercase}
.side-links{display:flex;flex-direction:column;gap:6px;margin-top:20px;flex:1 1 auto;overflow-y:auto}
.side-links::-webkit-scrollbar{width:4px}
.side-links::-webkit-scrollbar-thumb{background:rgba(146,180,230,.22);border-radius:4px}
.side-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:12px 14px 12px 18px;
  border-radius:12px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  transition:all .25s var(--ease);
}
.side-link i{font-size:13px;color:var(--weak);transition:color .25s var(--ease)}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;border-radius:0 4px 4px 0;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);
  transition:transform .25s var(--ease);
}
.side-link:hover{background:rgba(47,107,255,.12);color:var(--text);border-color:var(--line)}
.side-link:hover i{color:var(--cyan)}
.side-link.active{
  background:rgba(34,224,192,.08);
  color:#fff;
  border-color:rgba(34,224,192,.28);
}
.side-link.active::before{transform:translateY(-50%) scaleY(1)}
.side-link.active i{color:var(--cyan)}
.side-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line-soft)}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--weak)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;border:1px solid transparent;transition:all .25s var(--ease);cursor:pointer}
.btn-glow{
  background:linear-gradient(135deg,var(--cyan),#12B79D);
  color:#041410;
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);color:#041410;box-shadow:0 0 0 1px rgba(34,224,192,.55),0 14px 30px rgba(34,224,192,.3)}
.btn-orange{
  background:linear-gradient(135deg,var(--orange),#F2542D);
  color:#1A0700;
  box-shadow:0 0 0 1px rgba(255,122,61,.4),0 8px 24px rgba(255,122,61,.24);
}
.btn-orange:hover{transform:translateY(-2px);filter:brightness(1.07);color:#1A0700}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{background:rgba(34,224,192,.08);border-color:rgba(34,224,192,.45);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;
  position:sticky;top:0;z-index:1050;
  align-items:center;justify-content:space-between;
  padding:12px 18px;
  background:rgba(8,15,30,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.mobile-topbar .brand{padding:0;border:0}
.mobile-topbar .brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;font-size:15px}
.mobile-topbar .brand-text strong{font-size:15px}
.mobile-topbar .brand-text span{font-size:10px;letter-spacing:1.8px}
.menu-btn{
  width:44px;height:44px;border-radius:12px;
  background:rgba(16,32,58,.7);border:1px solid var(--line);
  color:var(--text);font-size:17px;
  display:flex;align-items:center;justify-content:center;
  transition:all .25s var(--ease);
}
.menu-btn:hover{border-color:rgba(34,224,192,.5);color:var(--cyan)}
.offcanvas{background:#080F1F;color:var(--text);border-right:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line-soft);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:700}
.offcanvas-body{padding:18px 16px 26px}
.offcanvas .side-link{padding:14px 16px 14px 20px;font-size:15.5px}

/* ============ 页面外壳 ============ */
.shell{margin-left:var(--nav-w);position:relative;z-index:1}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{color:rgba(146,180,230,.35)}
.crumb .cur{color:var(--cyan)}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:76px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,13,26,.94) 0%,rgba(7,13,26,.82) 46%,rgba(7,13,26,.6) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  opacity:1;
}
.cat-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(34,224,192,.16);
  box-shadow:0 0 0 42px rgba(47,107,255,.05),0 0 0 120px rgba(47,107,255,.03);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--cyan);
  background:rgba(34,224,192,.08);
  border:1px solid rgba(34,224,192,.26);
  padding:7px 14px;border-radius:999px;margin-bottom:20px;
}
.cat-hero h1{font-size:clamp(30px,4vw,46px);margin-bottom:18px}
.cat-hero h1 .hl{
  background:linear-gradient(transparent 62%,rgba(34,224,192,.34) 62%);
  padding:0 2px;
}
.lead{font-size:16.5px;line-height:1.85;color:var(--muted);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:38px;max-width:640px}
.stat-card{
  background:var(--surface-2);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:16px;
  padding:16px 18px;
  box-shadow:var(--shadow-sm);
}
.stat-card b{display:block;font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--cyan);line-height:1.3}
.stat-card span{font-size:13px;color:var(--weak)}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.hero-visual .glass-tag{
  position:absolute;left:18px;bottom:18px;
  display:flex;align-items:center;gap:10px;
  background:rgba(16,32,58,.78);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(146,180,230,.24);
  border-radius:14px;padding:12px 16px;font-size:13.5px;color:var(--text);
}
.hero-visual .glass-tag i{color:var(--orange)}

/* ============ 板块通用 ============ */
.section{padding:86px 0}
.section.alt{background:linear-gradient(180deg,rgba(12,22,43,.55),rgba(7,13,26,0))}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.6px;text-transform:uppercase;
  color:var(--orange);margin-bottom:14px;
}
.sec-title{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.sec-desc{color:var(--muted);font-size:16px;line-height:1.85}

/* ============ 课程卡 ============ */
.course-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}
.course-card{
  grid-column:span 6;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.course-card:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.38);box-shadow:var(--shadow)}
.course-card.feature{grid-column:span 12;flex-direction:row}
.course-cover{position:relative;flex:0 0 auto}
.course-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
.course-card.feature .course-cover{width:46%}
.course-card.feature .course-cover img{aspect-ratio:auto;height:100%;min-height:280px}
.badge-cat{
  position:absolute;left:14px;top:14px;
  background:rgba(7,13,26,.78);
  border:1px solid rgba(34,224,192,.4);
  color:var(--cyan);
  font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;
  backdrop-filter:blur(8px);
}
.course-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.course-body h3{font-size:20px}
.course-body p{color:var(--muted);font-size:14.5px;line-height:1.8}
.meta-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.chip{
  font-size:12.5px;color:var(--muted);
  background:rgba(47,107,255,.12);
  border:1px solid rgba(47,107,255,.22);
  padding:4px 11px;border-radius:999px;
}
.chip.c-cyan{background:rgba(34,224,192,.1);border-color:rgba(34,224,192,.28);color:#8CF2E0}
.chip.c-orange{background:rgba(255,122,61,.12);border-color:rgba(255,122,61,.3);color:#FFB18B}
.card-link{font-size:14px;font-weight:600;color:var(--link);display:inline-flex;align-items:center;gap:6px}
.card-link:hover{gap:10px;color:var(--link-hover)}

/* ============ 教练与活动 ============ */
.coach-grid{display:grid;grid-template-columns:2fr 1fr;gap:22px}
.coach-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);min-height:360px;
}
.coach-main img{width:100%;height:100%;min-height:360px;object-fit:cover}
.coach-main .overlay{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,13,26,.05) 30%,rgba(7,13,26,.92) 100%);
  display:flex;flex-direction:column;justify-content:flex-end;padding:30px;
}
.coach-main h3{font-size:24px;margin-bottom:10px}
.coach-main p{color:var(--muted);font-size:14.5px;max-width:560px}
.coach-side{display:flex;flex-direction:column;gap:22px}
.side-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  flex:1;
  display:flex;flex-direction:column;gap:10px;
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.side-item:hover{border-color:rgba(34,224,192,.35);transform:translateY(-3px)}
.side-item i{font-size:18px;color:var(--orange)}
.side-item h4{font-size:17px}
.side-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.4),rgba(47,107,255,.4),transparent);
}
.step{position:relative;padding-top:64px}
.step-num{
  position:absolute;top:0;left:0;
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  color:var(--cyan);
  background:radial-gradient(circle at 30% 25%,rgba(34,224,192,.22),rgba(12,22,43,.95));
  border:1px solid rgba(34,224,192,.42);
  box-shadow:0 0 20px rgba(34,224,192,.2);
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ 活动排期时间轴 ============ */
.timeline{display:grid;gap:16px}
.tl-item{
  display:grid;grid-template-columns:132px 1fr auto;gap:20px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:3px solid rgba(34,224,192,.55);
  border-radius:14px;
  padding:18px 22px;
  transition:all .25s var(--ease);
}
.tl-item:hover{border-left-color:var(--orange);background:rgba(16,32,58,.9);transform:translateX(4px)}
.tl-date{font-size:14px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums}
.tl-main h4{font-size:16.5px;margin-bottom:4px}
.tl-main p{font-size:13.5px;color:var(--weak)}
.tl-state{font-size:12.5px;padding:5px 12px;border-radius:999px;background:rgba(56,217,150,.12);color:var(--ok);border:1px solid rgba(56,217,150,.3);white-space:nowrap}
.tl-state.full{background:rgba(255,184,77,.12);color:var(--warn);border-color:rgba(255,184,77,.3)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-side p{color:var(--muted);font-size:15px;line-height:1.85;margin-top:16px}
.acc .accordion-item{
  background:rgba(12,22,43,.78);
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
}
.acc .accordion-button{
  background:transparent;color:var(--text);
  font-size:16px;font-weight:600;
  padding:18px 22px 18px 46px;
  box-shadow:none;position:relative;
  transition:background .25s var(--ease);
}
.acc .accordion-button::before{
  content:"";position:absolute;left:22px;top:50%;transform:translateY(-50%);
  width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px var(--cyan);
}
.acc .accordion-button::after{
  content:"+";background-image:none;
  width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);
  color:var(--cyan);font-size:18px;font-weight:400;line-height:1;
  display:flex;align-items:center;justify-content:center;
  margin-left:auto;flex:0 0 28px;transform:none;
  transition:all .25s var(--ease);
}
.acc .accordion-button:not(.collapsed){background:rgba(34,224,192,.07);color:#fff}
.acc .accordion-button:not(.collapsed)::after{content:"–";transform:rotate(180deg);border-color:rgba(34,224,192,.5)}
.acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.acc .accordion-body{
  padding:0 22px 22px 22px;
  color:var(--muted);
  font-size:14.8px;line-height:1.85;
  max-width:720px;
}
.acc .accordion-item{border-top:1px solid var(--line)}

/* ============ 相关分类 ============ */
.relcats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.relcat{
  display:block;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  color:var(--text);
  transition:all .25s var(--ease);
}
.relcat:hover{transform:translateY(-4px);border-color:rgba(34,224,192,.4);color:var(--text);box-shadow:var(--shadow)}
.relcat i{font-size:20px;color:var(--cyan);margin-bottom:14px;display:block}
.relcat h4{font-size:17px;margin-bottom:8px}
.relcat p{font-size:13.8px;color:var(--muted);line-height:1.8}

/* ============ CTA + 表单 ============ */
.cta-band{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  padding:52px;
  background:
    linear-gradient(115deg,rgba(7,13,26,.94),rgba(12,22,43,.82)),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:start;position:relative;z-index:2}
.cta-band h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.cta-band p{color:var(--muted);font-size:15.5px;line-height:1.85}
.cta-list{margin-top:24px;display:grid;gap:12px}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted)}
.cta-list i{color:var(--cyan);margin-top:5px;font-size:13px}
.apply-form{
  background:rgba(10,20,38,.86);
  border:1px solid var(--line);
  border-radius:20px;
  padding:28px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.apply-form .form-label{font-size:14px;color:var(--muted);margin-bottom:7px;font-weight:500}
.apply-form .form-control,.apply-form .form-select{
  background:rgba(12,22,43,.8);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:10px;
  padding:11px 14px;
  font-size:15px;
  transition:all .25s var(--ease);
}
.apply-form .form-control::placeholder{color:rgba(113,134,166,.75)}
.apply-form .form-control:focus,.apply-form .form-select:focus{
  background:rgba(12,22,43,.95);
  border-color:rgba(34,224,192,.6);
  box-shadow:0 0 0 3px rgba(34,224,192,.14);
  color:var(--text);
}
.apply-form .form-select option{background:#0C162B;color:var(--text)}
.form-note{font-size:12.5px;color:var(--weak);margin-top:14px;line-height:1.7}
.form-msg{font-size:13.5px;margin-top:12px;color:var(--ok);display:none}

/* ============ 页脚 ============ */
.site-foot{
  position:relative;
  margin-top:20px;
  background:linear-gradient(180deg,#080F1F,#050A14);
  border-top:1px solid var(--line);
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--cyan),var(--orange),transparent);
  opacity:.7;
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.1fr;gap:44px;
  padding:60px 0 40px;
}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand strong{font-size:17px}
.foot-about{color:var(--weak);font-size:13.8px;line-height:1.9;max-width:420px}
.foot-title{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--text)}
.foot-links li{margin-bottom:11px}
.foot-links a{color:var(--muted);font-size:14px}
.foot-links a:hover{color:var(--cyan)}
.foot-contact li{display:flex;gap:10px;color:var(--muted);font-size:14px;margin-bottom:12px;align-items:flex-start}
.foot-contact i{color:var(--cyan);font-size:13px;margin-top:5px}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid var(--line-soft);
  padding:22px 0 30px;
  font-size:13px;color:var(--weak);
}
.foot-bottom a{color:var(--muted)}
.foot-bottom a:hover{color:var(--cyan)}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:26px;z-index:1060;
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(16,32,58,.78);
  border:1px solid rgba(34,224,192,.35);
  color:var(--cyan);
  box-shadow:0 0 0 1px rgba(34,224,192,.15),0 8px 22px rgba(0,0,0,.4);
  opacity:0;visibility:hidden;
  transition:all .3s var(--ease);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:rgba(34,224,192,.16);transform:translateY(-3px)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--nav-w:220px}
  .side-nav{padding:20px 12px 18px}
  .hero-grid{gap:34px}
  .section{padding:70px 0}
  .cta-band{padding:42px}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .shell{margin-left:0}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .cat-hero{padding:52px 0 60px}
  .hero-visual img{aspect-ratio:16/9}
  .section{padding:60px 0}
  .course-card,.course-card.feature{grid-column:span 12;flex-direction:column}
  .course-card.feature .course-cover{width:100%}
  .course-card.feature .course-cover img{aspect-ratio:16/9;min-height:0}
  .coach-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px}
  .steps::before{display:none}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .relcats{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;padding:48px 0 32px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  body{font-size:15.5px}
  .cat-hero{padding:40px 0 48px}
  .hero-stats{grid-template-columns:1fr;gap:12px}
  .section{padding:48px 0}
  .sec-head{margin-bottom:30px}
  .course-body{padding:18px 18px 22px}
  .tl-item{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .tl-state{justify-self:start}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .apply-form{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-actions .btn{width:100%}
  .to-top{right:16px;bottom:18px;width:42px;height:42px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category3 */
:root{
  --bg:#070D1A;
  --surface:#0C162B;
  --surface-2:rgba(16,32,58,.62);
  --primary:#2F6BFF;
  --accent:#22E0C0;
  --orange:#FF7A3D;
  --text:#EAF2FF;
  --text-2:#A9BCD9;
  --text-3:#7186A6;
  --line:rgba(146,180,230,.18);
  --link:#5EA0FF;
  --link-hover:#8CC0FF;
  --ok:#38D996;
  --warn:#FFB84D;
  --danger:#FF5C7A;
  --r-btn:11px;
  --r-card:18px;
  --r-lg:24px;
  --shadow:0 12px 32px rgba(0,0,0,.35);
  --glow:0 0 0 1px rgba(34,224,192,.4), 0 8px 24px rgba(34,224,192,.22);
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-w:260px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 88% -8%,rgba(47,107,255,.16),transparent 62%),
    radial-gradient(760px 480px at 4% 102%,rgba(34,224,192,.10),transparent 60%);
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--link-hover)}
h1,h2,h3,h4{font-weight:700;line-height:1.3;margin:0 0 .6em;letter-spacing:.2px}
h1{font-size:clamp(30px,4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:22px}
h4{font-size:18px}
p{margin:0 0 1em;text-align:left;color:var(--text-2)}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 应用骨架 ---------- */
.app-shell{position:relative;z-index:1;padding-left:var(--nav-w);min-height:100vh}
/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  padding:26px 18px 22px;
  background:linear-gradient(180deg,#0A1428 0%,#070D1A 62%,#060B16 100%);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:22px;
  z-index:40;
}
.side-nav::after{
  content:"";position:absolute;top:0;right:-1px;width:1px;height:180px;
  background:linear-gradient(180deg,rgba(34,224,192,.65),transparent);
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#04101F;font-size:18px;
  box-shadow:0 8px 20px rgba(47,107,255,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:var(--text);font-size:16px;font-weight:700;letter-spacing:.3px}
.brand-text span{font-size:11px;letter-spacing:2.4px;color:var(--text-3)}
.nav-label{font-size:12px;letter-spacing:2px;color:var(--text-3);padding-left:12px}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-list a{
  position:relative;
  display:flex;align-items:center;gap:11px;
  padding:12px 14px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
  transition:all .24s var(--ease);
}
.nav-list a i{width:18px;text-align:center;font-size:14px;color:var(--text-3);transition:color .24s var(--ease)}
.nav-list a:hover{background:rgba(47,107,255,.10);color:var(--text);border-color:var(--line)}
.nav-list a:hover i{color:var(--accent)}
.nav-list a.active{
  background:rgba(34,224,192,.08);
  color:#fff;
  border-color:rgba(34,224,192,.28);
}
.nav-list a.active::before{
  content:"";position:absolute;left:-18px;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--accent);box-shadow:0 0 14px rgba(34,224,192,.85);
}
.nav-list a.active i{color:var(--accent)}
.side-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.side-cta .btn{width:100%;justify-content:center}
.side-meta{
  font-size:12px;color:var(--text-3);line-height:1.65;border-top:1px solid var(--line);padding-top:14px;
}
.side-meta strong{display:block;color:var(--text-2);font-size:13px;font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.btn-glow{
  background:linear-gradient(135deg,var(--accent),#2FD0FF);
  color:#04121C;
  box-shadow:var(--glow);
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);color:#04121C}
.btn-orange{
  background:linear-gradient(135deg,var(--orange),#FF9F5C);
  color:#22100A;box-shadow:0 8px 24px rgba(255,122,61,.28);
}
.btn-orange:hover{transform:translateY(-2px);filter:brightness(1.07);color:#22100A}
.btn-ghost{
  background:transparent;color:var(--text);
  border-color:rgba(146,180,230,.34);
}
.btn-ghost:hover{background:rgba(34,224,192,.08);border-color:rgba(34,224,192,.5);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- 移动端顶部栏 ---------- */
.mobile-topbar{
  display:none;
  position:sticky;top:0;z-index:50;
  align-items:center;justify-content:space-between;
  gap:12px;padding:12px 18px;
  background:rgba(7,13,26,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.menu-btn{
  width:44px;height:44px;border-radius:12px;
  background:rgba(16,32,58,.7);border:1px solid var(--line);
  color:var(--text);font-size:18px;cursor:pointer;
  transition:all .24s var(--ease);
}
.menu-btn:hover{border-color:rgba(34,224,192,.5);color:var(--accent)}
.offcanvas.mobile-menu{background:#08101F;color:var(--text);border-right:1px solid var(--line);width:300px}
.mobile-menu .offcanvas-header{border-bottom:1px solid var(--line)}
.mobile-menu .btn-close{filter:invert(1) grayscale(1) brightness(1.6)}
.mobile-menu .nav-list a.active::before{left:-14px}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(10,20,40,.5)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--accent);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 76px;
  background-image:linear-gradient(100deg,rgba(7,13,26,.94) 8%,rgba(7,13,26,.72) 52%,rgba(7,13,26,.9) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(146,180,230,.055) 0 1px,transparent 1px 90px),
    radial-gradient(620px 320px at 82% 18%,rgba(34,224,192,.14),transparent 65%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;font-size:13px;
  background:rgba(34,224,192,.1);border:1px solid rgba(34,224,192,.32);
  color:var(--accent);margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(34,224,192,.35) 62%);
  padding:0 4px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--text-2);max-width:640px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:620px}
.stat-card{
  background:var(--surface-2);
  border:1px solid rgba(146,180,230,.22);
  border-radius:16px;padding:16px 18px;
  backdrop-filter:blur(16px);
  box-shadow:0 10px 26px rgba(0,0,0,.28);
}
.stat-card b{display:block;font-size:24px;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.stat-card span{font-size:12.5px;color:var(--text-3)}
.hero-card{
  background:var(--surface-2);
  border:1px solid rgba(146,180,230,.24);
  border-radius:var(--r-lg);
  padding:24px;backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.hero-card h3{font-size:19px;margin-bottom:6px}
.hero-card .hint{font-size:13.5px;color:var(--text-3);margin-bottom:16px}
.hero-card ul{display:flex;flex-direction:column;gap:12px}
.hero-card li{display:flex;gap:11px;font-size:14.5px;color:var(--text-2)}
.hero-card li i{color:var(--accent);margin-top:4px;font-size:13px}
.hero-card .divider{height:1px;background:var(--line);margin:18px 0}

/* ---------- 通用板块 ---------- */
.section{padding:84px 0}
.section.tight{padding:64px 0}
.section-alt{background:linear-gradient(180deg,rgba(12,22,43,.72),rgba(7,13,26,.2))}
.section-head{max-width:760px;margin-bottom:44px}
.sec-kicker{
  display:inline-block;font-size:13px;letter-spacing:1.6px;
  color:var(--accent);margin-bottom:12px;font-weight:600;
}
.sec-title{margin-bottom:14px}
.sec-desc{color:var(--text-2);font-size:16px;line-height:1.85;margin:0}

/* ---------- 场馆列表 ---------- */
.venue-list{display:flex;flex-direction:column;gap:20px}
.venue-item{
  display:grid;grid-template-columns:300px minmax(0,1fr) 220px;
  gap:26px;align-items:center;
  background:rgba(12,22,43,.72);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.venue-item:hover{transform:translateY(-3px);border-color:rgba(34,224,192,.42);box-shadow:0 16px 36px rgba(0,0,0,.4)}
.venue-thumb{
  position:relative;border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:#0A1428;
}
.venue-thumb img{width:100%;height:100%;object-fit:cover}
.venue-thumb .tag-on{
  position:absolute;left:12px;top:12px;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(7,13,26,.78);color:var(--accent);border:1px solid rgba(34,224,192,.4);
  backdrop-filter:blur(8px);
}
.venue-body h3{font-size:21px;margin-bottom:8px}
.venue-body p{font-size:14.6px;margin-bottom:14px}
.chip-row{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  padding:5px 12px;border-radius:999px;font-size:12.5px;
  background:rgba(47,107,255,.12);color:#9CC4FF;border:1px solid rgba(47,107,255,.24);
}
.chip.warm{background:rgba(255,122,61,.12);color:#FFB08A;border-color:rgba(255,122,61,.26)}
.venue-side{border-left:1px solid var(--line);padding-left:24px;display:flex;flex-direction:column;gap:10px}
.venue-side .kv{font-size:13.5px;color:var(--text-3)}
.venue-side .kv b{display:block;color:var(--text);font-size:16px;font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- 服务流程 ---------- */
.flow-grid{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.flow-grid::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(34,224,192,.5),rgba(47,107,255,.28),rgba(34,224,192,.5));
  opacity:.55;
}
.flow-step{position:relative;z-index:1;padding-top:0}
.flow-dot{
  width:54px;height:54px;border-radius:50%;
  display:grid;place-items:center;
  font-weight:700;font-size:17px;color:#04121C;
  background:linear-gradient(140deg,var(--accent),#3FE4FF);
  box-shadow:0 0 0 6px rgba(34,224,192,.1),0 10px 24px rgba(34,224,192,.24);
  margin-bottom:18px;font-variant-numeric:tabular-nums;
}
.flow-step h4{margin-bottom:8px;font-size:18px}
.flow-step p{font-size:14.6px;margin-bottom:12px}
.flow-step .micro{font-size:13px;color:var(--accent);font-weight:600}

/* ---------- 服务保障（非对称） ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:30px;align-items:start}
.split-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;
}
.split-card.accent{
  background:linear-gradient(160deg,rgba(34,224,192,.12),rgba(12,22,43,.92));
  border-color:rgba(34,224,192,.32);
}
.feature-list{display:flex;flex-direction:column;gap:18px}
.feature-list li{display:flex;gap:14px}
.feature-list .ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,107,255,.16);color:#9CC4FF;font-size:16px;
}
.feature-list h4{margin-bottom:4px;font-size:17px}
.feature-list p{font-size:14.4px;margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:44px;align-items:start}
.accordion-item{
  background:rgba(12,22,43,.6)!important;
  border:1px solid var(--line)!important;
  border-radius:14px!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  background:transparent!important;color:var(--text)!important;
  font-weight:600;font-size:16px;padding:18px 20px 18px 42px;
  box-shadow:none!important;position:relative;
}
.accordion-button::before{
  content:"";position:absolute;left:20px;top:50%;transform:translateY(-50%);
  width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(34,224,192,.9);
}
.accordion-button::after{
  filter:invert(78%) sepia(38%) saturate(1200%) hue-rotate(120deg);
}
.accordion-button:not(.collapsed){color:#fff!important;background:rgba(34,224,192,.06)!important}
.accordion-body{
  padding:4px 24px 22px 42px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:720px;
  border-top:1px solid rgba(146,180,230,.12);
}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(34,224,192,.26);
  background:linear-gradient(120deg,rgba(12,22,43,.96),rgba(10,26,48,.9));
  padding:48px;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,224,192,.24),transparent 66%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:44px;align-items:start}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.form-card{
  background:rgba(7,13,26,.78);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  backdrop-filter:blur(12px);
}
.form-card label{font-size:14px;color:var(--text-2);margin-bottom:6px;display:block}
.form-control,.form-select{
  background:rgba(12,22,43,.8)!important;
  border:1px solid rgba(146,180,230,.24)!important;
  color:var(--text)!important;
  border-radius:10px!important;
  padding:11px 14px;font-size:15px;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control::placeholder{color:#6A7E9E}
.form-control:focus,.form-select:focus{
  border-color:rgba(34,224,192,.72)!important;
  box-shadow:0 0 0 3px rgba(34,224,192,.14)!important;
}
.form-select option{background:#0C162B;color:var(--text)}
.form-note{font-size:12.5px;color:var(--text-3);margin:12px 0 0}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{
  display:block;background:rgba(12,22,43,.7);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;color:var(--text);
  transition:transform .26s var(--ease),border-color .26s var(--ease),background .26s var(--ease);
}
.related-card:hover{transform:translateY(-3px);border-color:rgba(34,224,192,.42);background:rgba(16,32,58,.78);color:#fff}
.related-card i{color:var(--accent);font-size:18px;margin-bottom:14px;display:block}
.related-card h4{margin-bottom:8px;font-size:17px}
.related-card p{font-size:14px;margin:0}

/* ---------- 页脚 ---------- */
.site-foot{
  position:relative;margin-top:20px;padding:60px 0 26px;
  background:linear-gradient(180deg,rgba(9,17,33,.5),#060B16);
}
.site-foot::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(34,224,192,.6),rgba(47,107,255,.35),transparent);
}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1.1fr);gap:40px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand strong{font-size:17px;color:#fff}
.foot-about{font-size:14.4px;color:var(--text-3);line-height:1.85;max-width:520px}
.foot-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px}
.foot-links,.foot-contact{display:flex;flex-direction:column;gap:11px}
.foot-links a{color:var(--text-3);font-size:14.4px}
.foot-links a:hover{color:var(--accent)}
.foot-contact li{display:flex;gap:10px;font-size:14.4px;color:var(--text-3)}
.foot-contact i{color:var(--accent);margin-top:5px;font-size:13px;width:16px}
.foot-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);
}
.foot-bottom a{color:var(--text-2)}
.foot-bottom a:hover{color:var(--accent)}
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:60;
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:rgba(16,32,58,.78);border:1px solid rgba(34,224,192,.35);
  color:var(--accent);cursor:pointer;backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .28s var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:rgba(34,224,192,.14);box-shadow:0 0 0 1px rgba(34,224,192,.4)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--nav-w:240px}
  .venue-item{grid-template-columns:250px minmax(0,1fr) 190px;gap:20px}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .cta-grid{grid-template-columns:1fr;gap:30px}
}
@media (max-width:991px){
  .app-shell{padding-left:0}
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .hero{padding:56px 0 52px}
  .section{padding:64px 0}
  .section.tight{padding:52px 0}
  .venue-item{grid-template-columns:1fr;gap:18px}
  .venue-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:16px;flex-direction:row;flex-wrap:wrap;gap:22px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid::before{display:none}
  .split{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .related-grid{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .hero{padding:44px 0 46px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 100%;justify-content:center}
  .hero-stats{grid-template-columns:1fr;gap:10px}
  .section{padding:52px 0}
  .cta-band{padding:28px 20px}
  .flow-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .section-head{margin-bottom:30px}
}