/* roulang page: index */
:root{
  --bg-0:#070F17; --bg-1:#0A1824; --bg-2:#0E2231;
  --panel:rgba(17,37,54,.58); --panel-solid:#102535;
  --primary:#F0544C; --primary-deep:#C9332D; --secondary:#FF8FA3; --accent:#65E0C2;
  --text-0:#EDF4F9; --text-1:#A9BECD; --text-2:#6F8798;
  --line:rgba(255,255,255,.10); --line-weak:rgba(255,255,255,.06);
  --r-card:18px; --r-panel:24px; --r-btn:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(240,84,76,.40), 0 8px 24px rgba(240,84,76,.28);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text-0);background:var(--bg-0);
  background-image:radial-gradient(900px 500px at 85% -8%,rgba(240,84,76,.16),transparent 62%),
                   radial-gradient(700px 420px at 5% 12%,rgba(101,224,194,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{font-family:var(--serif);font-weight:700;letter-spacing:.01em;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.serif{font-family:var(--serif);}
.num{font-variant-numeric:tabular-nums;}

/* ============ 顶栏 ============ */
.topbar{height:38px;background:#08141F;border-bottom:1px solid var(--line-weak);font-size:13px;color:var(--text-1);}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.topbar-city{color:var(--text-0);}
.topbar-city span{color:var(--accent);margin-right:4px;}
.topbar-mid{display:flex;align-items:center;gap:22px;flex:1;justify-content:center;}
.topbar-mid a{color:var(--text-1);transition:color .18s;}
.topbar-mid a:hover{color:var(--primary);}
.topbar-right{display:flex;align-items:center;gap:0;white-space:nowrap;}
.topbar-right a{padding:0 10px;color:var(--text-1);border-left:1px solid var(--line-weak);transition:color .18s;}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:hover{color:var(--text-0);}

/* ============ 主导航 ============ */
.nav{position:sticky;top:0;z-index:60;background:rgba(8,20,31,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav .container{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(240,84,76,.30),rgba(255,143,163,.12));
  border:1px solid rgba(240,84,76,.45);box-shadow:0 6px 18px rgba(240,84,76,.22);}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:var(--serif);font-size:16px;letter-spacing:.02em;color:var(--text-0);}
.logo-text i{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-2);}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-links a{position:relative;padding:8px 13px;font-size:14px;color:var(--text-1);border-radius:8px;transition:color .18s,background .18s;}
.nav-links a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-links a.active{color:var(--text-0);}
.nav-links a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(240,84,76,.7);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-city{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:5px;transition:color .18s;}
.nav-city:hover{color:var(--primary);}
.burger{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;}
.burger span{display:block;width:16px;height:2px;background:var(--text-0);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text-0);}
.burger span::before{top:-5px;}.burger span::after{top:5px;}

.drawer{display:none;border-top:1px solid var(--line);background:rgba(9,22,33,.98);padding:14px 0 20px;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--text-1);border-bottom:1px solid var(--line-weak);}
.drawer a.active{color:var(--primary);}
.drawer .drawer-cta{margin-top:14px;}
body.nav-open .drawer{display:block;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--primary);color:#150506;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF6B60;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(240,84,76,.5),0 12px 28px rgba(240,84,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 4px 14px rgba(240,84,76,.24);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-0);border:1px solid var(--line);backdrop-filter:blur(10px);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-text:hover{color:#FF8F86;}

/* ============ 通用徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);}
.badge-live{color:var(--accent);border-color:rgba(101,224,194,.35);}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(101,224,194,.9);}
.badge-hot{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.5);color:#FFB1AA;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--secondary);text-transform:uppercase;}

/* ============ 板块 ============ */
.section{padding:88px 0;position:relative;}
.section-alt{background:linear-gradient(180deg,rgba(10,24,36,.9),rgba(7,15,23,.9));border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:34px;line-height:1.35;margin-top:14px;color:var(--text-0);}
.section-head p{margin-top:16px;font-size:15px;color:var(--text-1);line-height:1.85;}
.glass{background:var(--panel);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass{background:var(--panel-solid);}
}
.card-hover{transition:transform .22s,border-color .22s,box-shadow .22s;}
.card-hover:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.55);box-shadow:0 18px 44px rgba(0,0,0,.45);}
.img-cover{width:100%;height:100%;object-fit:cover;border-radius:12px;border:1px solid rgba(255,255,255,.08);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:70px 0 84px;border-bottom:1px solid var(--line);}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.22;filter:saturate(.9);}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(7,15,23,.96) 0%,rgba(7,15,23,.86) 46%,rgba(10,24,36,.62) 100%);}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.32fr .92fr;gap:48px;align-items:start;}
.hero h1{font-size:52px;line-height:1.26;margin-top:20px;letter-spacing:-.01em;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{margin-top:18px;font-size:17px;color:var(--secondary);line-height:1.7;}
.hero-copy{margin-top:20px;font-size:15px;color:var(--text-1);line-height:1.9;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

.hero-panel{padding:24px;border-radius:var(--r-panel);}
.hero-panel-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-weak);}
.hero-panel-top strong{font-family:var(--serif);font-size:16px;}
.hero-panel-top span{font-size:12px;color:var(--text-2);}
.hero-list{margin-top:6px;}
.hero-list li{display:flex;align-items:center;gap:14px;padding:14px 6px;border-bottom:1px dashed var(--line-weak);transition:background .18s;}
.hero-list li:last-child{border-bottom:0;}
.hero-list li:hover{background:rgba(255,255,255,.04);border-radius:10px;}
.hero-list .idx{font-family:var(--serif);font-size:13px;color:var(--primary);width:24px;flex:none;}
.hero-list .txt{flex:1;min-width:0;}
.hero-list .txt b{display:block;font-size:14.5px;font-weight:600;color:var(--text-0);}
.hero-list .txt small{display:block;margin-top:2px;font-size:12.5px;color:var(--text-2);}
.hero-list .arrow{color:var(--text-2);font-size:13px;}
.hero-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px;}
.hero-mini div{padding:14px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid var(--line-weak);}
.hero-mini b{display:block;font-family:var(--serif);font-size:22px;color:var(--accent);}
.hero-mini small{font-size:12px;color:var(--text-2);}

/* ============ 入口矩阵 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.entry-card{padding:24px;border-radius:var(--r-card);display:block;}
.entry-card .e-icon{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(240,84,76,.14);border:1px solid rgba(240,84,76,.35);color:var(--primary);font-family:var(--serif);font-size:16px;}
.entry-card h3{font-size:19px;}
.entry-card p{margin-top:10px;font-size:13.5px;color:var(--text-1);line-height:1.8;}
.entry-card .e-more{margin-top:16px;font-size:13px;color:var(--secondary);display:inline-flex;gap:6px;align-items:center;}

/* ============ 功能 bento ============ */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:22px;}
.bento-card{padding:26px;border-radius:var(--r-card);display:flex;flex-direction:column;gap:12px;}
.bento-card h3{font-size:20px;}
.bento-card p{font-size:14px;color:var(--text-1);line-height:1.8;}
.bento-big{grid-column:span 3;min-height:280px;background:linear-gradient(155deg,rgba(240,84,76,.16),rgba(17,37,54,.6));}
.bento-mid{grid-column:span 3;min-height:200px;}
.bento-small{grid-column:span 2;min-height:170px;}
.bento-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:10px;}
.bento-tags span{font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line-weak);color:var(--text-1);}

/* ============ 场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.scene-card{padding:0;overflow:hidden;border-radius:var(--r-card);}
.scene-img{position:relative;aspect-ratio:4/3;overflow:hidden;border-radius:0;}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.scene-card:hover .scene-img img{transform:scale(1.05);}
.scene-num{position:absolute;left:14px;top:14px;font-family:var(--serif);font-size:13px;padding:3px 10px;border-radius:999px;
  background:rgba(7,15,23,.72);border:1px solid var(--line);color:var(--secondary);letter-spacing:.08em;}
.scene-body{padding:20px;}
.scene-body h3{font-size:18px;}
.scene-body p{margin-top:10px;font-size:13.5px;color:var(--text-1);line-height:1.8;}
.scene-tags{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap;}
.scene-tags span{font-size:11.5px;color:var(--text-2);border:1px solid var(--line-weak);padding:3px 9px;border-radius:999px;}

/* ============ 演示 ============ */
.demo-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  padding:38px;border-radius:var(--r-panel);background-image:
  linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
  linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:42px 42px;background-color:rgba(10,24,36,.7);border:1px solid var(--line);}
.demo-stage{position:relative;aspect-ratio:16/11;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.1);box-shadow:var(--sh-2);}
.demo-stage img{width:100%;height:100%;object-fit:cover;}
.demo-stage::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,15,23,.1),rgba(7,15,23,.7));}
.demo-caption{position:absolute;left:16px;bottom:14px;z-index:2;font-size:13px;color:var(--text-1);}
.demo-tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:20px;}
.demo-tabs button{padding:10px 14px;font-size:14px;color:var(--text-1);border-bottom:2px solid transparent;transition:color .18s,border-color .18s;}
.demo-tabs button.active{color:var(--text-0);border-color:var(--primary);}
.demo-pane{display:none;}
.demo-pane.active{display:block;}
.demo-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line-weak);}
.demo-list li:last-child{border-bottom:0;}
.demo-list .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);margin-top:9px;flex:none;box-shadow:0 0 10px rgba(240,84,76,.8);}
.demo-list b{font-size:15px;color:var(--text-0);}
.demo-list p{font-size:13.5px;color:var(--text-1);margin-top:2px;line-height:1.75;}

/* ============ 案例 ============ */
.case-list{display:flex;flex-direction:column;gap:24px;}
.case-card{display:grid;grid-template-columns:340px 1fr;gap:0;overflow:hidden;border-radius:var(--r-panel);}
.case-card.rev{grid-template-columns:1fr 340px;}
.case-card.rev .case-media{order:2;}
.case-media{position:relative;min-height:230px;overflow:hidden;}
.case-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.case-body{padding:28px 30px;}
.case-body h3{font-size:21px;margin-top:14px;}
.case-body p{margin-top:12px;font-size:14px;color:var(--text-1);line-height:1.85;}
.case-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line-weak);}
.case-stats b{display:block;font-family:var(--serif);font-size:22px;color:var(--accent);}
.case-stats small{font-size:12px;color:var(--text-2);}

/* ============ 价格 ============ */
.price-switch{display:flex;justify-content:center;gap:8px;margin-bottom:34px;}
.price-switch button{padding:9px 20px;font-size:13.5px;color:var(--text-1);border:1px solid var(--line);border-radius:999px;transition:all .18s;}
.price-switch button.active{color:#150506;background:var(--primary);border-color:var(--primary);box-shadow:var(--sh-glow);}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;}
.price-card{padding:30px 26px;border-radius:var(--r-panel);display:flex;flex-direction:column;}
.price-card.recommend{border-color:rgba(240,84,76,.6);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 20px 54px rgba(240,84,76,.18);position:relative;}
.price-card.recommend::before{content:"推荐";position:absolute;right:20px;top:-12px;font-size:12px;padding:3px 12px;border-radius:999px;background:var(--primary);color:#150506;font-weight:600;}
.price-name{font-family:var(--serif);font-size:19px;}
.price-desc{font-size:13px;color:var(--text-2);margin-top:6px;}
.price-amount{display:flex;align-items:baseline;gap:4px;margin:20px 0 6px;font-family:var(--serif);}
.price-amount b{font-size:42px;line-height:1;letter-spacing:-.02em;}
.price-amount span{font-size:13px;color:var(--text-2);}
.price-feats{margin:18px 0 24px;display:flex;flex-direction:column;gap:11px;font-size:13.5px;color:var(--text-1);}
.price-feats li{display:flex;gap:9px;align-items:flex-start;}
.price-feats li::before{content:"✓";color:var(--accent);font-size:13px;line-height:1.6;}
.price-card .btn{margin-top:auto;}

/* ============ 评价墙 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;}
.quote-card{padding:22px;border-radius:var(--r-card);}
.quote-head{display:flex;align-items:center;gap:12px;}
.avatar{width:40px;height:40px;border-radius:50%;flex:none;display:grid;place-items:center;font-family:var(--serif);font-size:15px;
  background:linear-gradient(150deg,rgba(240,84,76,.3),rgba(255,143,163,.14));border:1px solid rgba(240,84,76,.35);color:#FFD9D5;}
.quote-head b{display:block;font-size:14px;color:var(--text-0);}
.quote-head small{font-size:12px;color:var(--text-2);}
.stars{color:var(--secondary);font-size:12px;letter-spacing:2px;margin-top:12px;}
.quote-card p{margin-top:8px;font-size:13.5px;color:var(--text-1);line-height:1.85;}
.quote-tag{margin-top:14px;display:inline-block;font-size:11.5px;color:var(--text-2);border:1px solid var(--line-weak);border-radius:999px;padding:3px 10px;}

/* ============ 数据带 ============ */
.data-band{padding:64px 0;background:linear-gradient(180deg,#08141F,#0A1824);border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:38px;}
.data-cell{padding:6px 26px;border-left:1px solid var(--line-weak);}
.data-cell:first-child{border-left:0;padding-left:0;}
.data-cell b{display:block;font-family:var(--serif);font-size:40px;line-height:1.1;color:var(--text-0);}
.data-cell b i{font-style:normal;font-size:18px;color:var(--accent);margin-left:2px;}
.data-cell small{display:block;margin-top:8px;font-size:13px;color:var(--text-2);}
.data-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.data-tags span{font-size:12.5px;color:var(--accent);border:1px solid rgba(101,224,194,.28);background:rgba(101,224,194,.07);padding:6px 14px;border-radius:999px;}

/* ============ 城市站 ============ */
.city-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;}
.city-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.city-chips button{padding:8px 16px;font-size:13px;border-radius:999px;border:1px solid var(--line);color:var(--text-1);transition:all .18s;}
.city-chips button.active,.city-chips button:hover{border-color:var(--primary);color:#fff;background:rgba(240,84,76,.12);}
.city-map{position:relative;aspect-ratio:16/11;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);}
.city-map img{width:100%;height:100%;object-fit:cover;opacity:.4;}
.city-map::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 45%,rgba(240,84,76,.22),transparent 62%);}
.city-pin{position:absolute;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px rgba(240,84,76,.18),0 0 16px rgba(240,84,76,.9);z-index:2;}
.city-pin.p1{left:32%;top:36%;}
.city-pin.p2{left:56%;top:28%;background:var(--accent);box-shadow:0 0 0 5px rgba(101,224,194,.16),0 0 16px rgba(101,224,194,.9);}
.city-pin.p3{left:46%;top:58%;}
.city-pin.p4{left:68%;top:52%;background:var(--secondary);box-shadow:0 0 0 5px rgba(255,143,163,.16),0 0 16px rgba(255,143,163,.9);}
.city-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px;}
.city-card{padding:18px;border-radius:14px;}
.city-card b{font-family:var(--serif);font-size:16px;}
.city-card p{font-size:12.5px;color:var(--text-1);margin-top:8px;line-height:1.7;}
.city-card span{display:inline-block;margin-top:12px;font-size:12px;color:var(--secondary);}

/* ============ 安全 ============ */
.safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line-weak);}
.safety-item{padding:26px 24px;border-left:1px solid var(--line-weak);}
.safety-item:first-child{border-left:0;padding-left:0;}
.safety-item .s-num{font-family:var(--serif);font-size:13px;color:var(--accent);letter-spacing:.14em;}
.safety-item h3{font-size:17px;margin-top:10px;}
.safety-item p{font-size:13px;color:var(--text-1);margin-top:8px;line-height:1.8;}

/* ============ 论坛专题 ============ */
.forum-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:38px;align-items:start;}
.forum-links{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px;}
.forum-links a{padding:16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);transition:all .2s;}
.forum-links a:hover{border-color:var(--primary);background:rgba(240,84,76,.08);transform:translateY(-2px);}
.forum-links b{display:block;font-size:14.5px;color:var(--text-0);}
.forum-links small{font-size:12px;color:var(--text-2);}
.topic-list li{border-bottom:1px solid var(--line-weak);}
.topic-list li:last-child{border-bottom:0;}
.topic-list a{display:flex;gap:14px;align-items:flex-start;padding:16px 8px;transition:background .18s;}
.topic-list a:hover{background:rgba(255,255,255,.04);border-radius:12px;}
.topic-list .t-main{flex:1;min-width:0;}
.topic-list b{font-size:14.5px;color:var(--text-0);display:block;line-height:1.5;}
.topic-list p{font-size:12.5px;color:var(--text-2);margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topic-list .t-meta{flex:none;text-align:right;font-size:12px;color:var(--text-2);line-height:1.7;}

/* ============ 圈子 ============ */
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag-cloud span{font-size:12.5px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line-weak);color:var(--text-1);}
.circle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.circle-card{overflow:hidden;border-radius:var(--r-card);}
.circle-img{aspect-ratio:16/9;overflow:hidden;}
.circle-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.circle-card:hover .circle-img img{transform:scale(1.06);}
.circle-body{padding:18px 20px 22px;}
.circle-body h3{font-size:17px;}
.circle-meta{display:flex;gap:16px;margin-top:12px;font-size:12.5px;color:var(--text-2);}
.circle-body a{display:inline-block;margin-top:14px;font-size:13px;color:var(--secondary);}

/* ============ 资讯 CMS ============ */
.news-wrap{display:grid;grid-template-columns:1.62fr .85fr;gap:38px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-item{display:grid;grid-template-columns:200px 1fr;gap:18px;padding:16px;border-radius:var(--r-card);transition:transform .2s,border-color .2s,background .2s;}
.news-item:hover{transform:translateY(-3px);border-color:rgba(240,84,76,.5);}
.news-thumb{aspect-ratio:16/9;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-top{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-2);}
.news-item h3{font-size:16.5px;margin-top:8px;line-height:1.5;color:var(--text-0);}
.news-item p{margin-top:8px;font-size:13px;color:var(--text-1);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{padding:22px;border-radius:var(--r-panel);}
.news-side h3{font-size:16px;padding-bottom:14px;border-bottom:1px solid var(--line-weak);}
.side-item{display:block;padding:14px 0;border-bottom:1px dashed var(--line-weak);transition:padding-left .18s;}
.side-item:last-child{border-bottom:0;}
.side-item:hover{padding-left:6px;}
.side-item b{display:block;font-size:13.5px;color:var(--text-0);line-height:1.6;}
.side-item small{font-size:11.5px;color:var(--text-2);}
.news-more{display:flex;justify-content:space-between;align-items:center;margin-top:22px;}
.empty-box{padding:44px 24px;text-align:center;border-radius:var(--r-card);border:1px dashed var(--line);color:var(--text-2);font-size:14px;}

/* ============ 下载指引 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:10px;position:relative;}
.step{padding:0 26px;position:relative;border-left:1px solid var(--line-weak);}
.step:first-child{border-left:0;padding-left:0;}
.step .s-idx{font-family:var(--serif);font-size:13px;letter-spacing:.14em;color:var(--primary);}
.step h3{font-size:18px;margin-top:10px;}
.step p{font-size:13.5px;color:var(--text-1);margin-top:8px;line-height:1.8;}
.dl-wrap{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;}
.qr-box{padding:20px;border-radius:var(--r-panel);text-align:center;}
.qr-code{width:132px;height:132px;margin:0 auto;border-radius:12px;border:1px dashed rgba(255,255,255,.24);
  background:rgba(255,255,255,.05);display:grid;place-items:center;font-size:12px;color:var(--text-2);line-height:1.6;}
.qr-box p{font-size:12.5px;color:var(--text-2);margin-top:12px;}
.dl-btns{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start;}
.faq-side{padding:26px;border-radius:var(--r-panel);}
.faq-side h2{font-size:30px;line-height:1.4;}
.faq-side p{font-size:14px;color:var(--text-1);margin-top:14px;line-height:1.85;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.02);transition:background .18s,border-color .18s;}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;color:var(--text-0);display:flex;justify-content:space-between;align-items:center;gap:16px;font-weight:600;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-family:var(--serif);font-size:18px;color:var(--primary);transition:transform .2s;}
.faq-item[open]{background:rgba(255,255,255,.05);border-color:rgba(240,84,76,.4);border-left:2px solid var(--primary);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item p{padding:0 20px 20px;font-size:14px;color:var(--text-1);line-height:1.9;}

/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;padding:56px;border-radius:var(--r-panel);
  background:linear-gradient(120deg,rgba(240,84,76,.16),rgba(17,37,54,.7) 62%);border:1px solid rgba(240,84,76,.32);}
.cta-band::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,84,76,.35),transparent 66%);pointer-events:none;}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 380px;gap:40px;align-items:center;}
.cta-inner h2{font-size:32px;line-height:1.35;}
.cta-inner p{margin-top:12px;font-size:14.5px;color:var(--text-1);line-height:1.85;}
.cta-form{display:flex;gap:10px;}
.field{flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);background:rgba(7,15,23,.6);border:1px solid var(--line);color:var(--text-0);font-size:14px;transition:border-color .18s,box-shadow .18s;}
.field::placeholder{color:var(--text-2);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,84,76,.18);}
.cta-note{font-size:12px;color:var(--text-2);margin-top:12px;}
.cta-msg{font-size:13px;color:var(--accent);margin-top:10px;min-height:20px;}

/* ============ 页脚 ============ */
.footer{background:#060D14;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:34px;padding-bottom:48px;}
.footer-brand b{font-family:var(--serif);font-size:16px;display:block;}
.footer-brand p{margin-top:14px;font-size:13px;color:var(--text-2);line-height:1.9;max-width:280px;}
.footer-col h4{font-size:14px;color:var(--text-0);margin-bottom:14px;font-family:var(--serif);}
.footer-col a{display:block;font-size:13px;color:var(--text-2);padding:5px 0;transition:color .18s;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{width:104px;height:104px;border-radius:12px;border:1px dashed rgba(255,255,255,.22);background:rgba(255,255,255,.04);display:grid;place-items:center;font-size:11.5px;color:var(--text-2);text-align:center;line-height:1.6;}
.footer-bottom{border-top:1px solid var(--line-weak);padding:22px 0;font-size:12.5px;color:var(--text-2);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.footer-bottom .fb-left{display:flex;flex-wrap:wrap;gap:16px;}
.footer-bottom a:hover{color:var(--text-1);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .hero h1{font-size:44px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .bento-big,.bento-mid{grid-column:span 6;}
  .bento-small{grid-column:span 3;}
  .nav-links a{padding:8px 10px;font-size:13.5px;}
}
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero h1{font-size:40px;}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;}
  .case-card,.case-card.rev{grid-template-columns:1fr;}
  .case-card.rev .case-media{order:0;}
  .case-media{min-height:210px;}
  .demo-wrap,.city-wrap,.forum-wrap,.news-wrap,.faq-wrap,.dl-wrap,.cta-inner{grid-template-columns:1fr;gap:28px;}
  .data-grid{grid-template-columns:repeat(2,1fr);row-gap:26px;}
  .data-cell:nth-child(3){border-left:0;padding-left:0;}
  .safety-grid{grid-template-columns:repeat(2,1fr);row-gap:0;}
  .safety-item:nth-child(3){border-left:0;padding-left:0;}
  .circle-grid,.city-cards{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;}
  .nav-links{display:none;}
  .burger{display:flex;}
  .topbar-mid{display:none;}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px;}
  .topbar-right{display:none;}
  .nav .container{height:62px;}
  .logo{min-width:0;}
  .nav-city{display:none;}
  .section{padding:56px 0;}
  .hero{padding:44px 0 60px;}
  .hero h1{font-size:32px;}
  .hero-lead{font-size:15.5px;}
  .section-head h2{font-size:26px;}
  .entry-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;gap:16px;}
  .quote-grid{grid-template-columns:1fr;}
  .circle-grid,.city-cards{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .data-cell b{font-size:32px;}
  .safety-grid{grid-template-columns:1fr;}
  .safety-item{border-left:0;padding-left:0;border-top:1px solid var(--line-weak);}
  .safety-item:first-child{border-top:0;}
  .steps{grid-template-columns:1fr;gap:20px;}
  .step{border-left:0;padding-left:0;border-top:1px solid var(--line-weak);padding-top:18px;}
  .step:first-child{border-top:0;padding-top:0;}
  .news-item{grid-template-columns:1fr;}
  .news-thumb{aspect-ratio:16/9;}
  .cta-band{padding:30px 22px;}
  .cta-inner h2{font-size:24px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .forum-links{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1/-1;}
  .hero-actions .btn{flex:1 1 auto;}
  .price-switch{flex-wrap:wrap;}
}
@media (max-width:520px){
  .hero h1{font-size:28px;}
  .section-head h2{font-size:24px;}
  .logo-text b{font-size:14px;}
  .logo-text i{font-size:10px;}
  .data-grid{grid-template-columns:1fr;row-gap:20px;}
  .data-cell{border-left:0;padding-left:0;border-top:1px solid var(--line-weak);padding-top:16px;}
  .data-cell:first-child{border-top:0;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .btn-sm{width:auto;}
  .case-body{padding:22px;}
  .bento-small{grid-column:span 6;}
  .news-side{padding:18px;}
}

/* roulang page: category1 */
:root{
  --bg-0:#070F17; --bg-1:#0A1824; --bg-2:#0E2231;
  --panel:rgba(17,37,54,.58); --panel-solid:#102535;
  --primary:#F0544C; --primary-deep:#C9332D; --secondary:#FF8FA3; --accent:#65E0C2;
  --text-0:#EDF4F9; --text-1:#A9BECD; --text-2:#6F8798;
  --line:rgba(255,255,255,.10); --line-weak:rgba(255,255,255,.06);
  --r-card:18px; --r-panel:24px; --r-btn:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(240,84,76,.40), 0 8px 24px rgba(240,84,76,.28);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text-0);background:var(--bg-0);
  background-image:radial-gradient(900px 500px at 85% -8%,rgba(240,84,76,.16),transparent 62%),
                   radial-gradient(700px 420px at 5% 12%,rgba(101,224,194,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 顶栏 ============ */
.topbar{height:38px;background:#08141F;border-bottom:1px solid var(--line-weak);font-size:13px;color:var(--text-1);}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.topbar-city{color:var(--text-0);}
.topbar-city span{color:var(--accent);margin-right:4px;}
.topbar-mid{display:flex;align-items:center;gap:22px;flex:1;justify-content:center;}
.topbar-mid a{color:var(--text-1);transition:color .18s;}
.topbar-mid a:hover{color:var(--primary);}
.topbar-right{display:flex;align-items:center;gap:0;white-space:nowrap;}
.topbar-right a{padding:0 10px;color:var(--text-1);border-left:1px solid var(--line-weak);transition:color .18s;}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:hover{color:var(--text-0);}
.topbar-sep{color:var(--text-2);}

/* ============ 主导航 ============ */
.nav{position:sticky;top:0;z-index:60;background:rgba(8,20,31,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav .container{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(240,84,76,.30),rgba(255,143,163,.12));
  border:1px solid rgba(240,84,76,.45);box-shadow:0 6px 18px rgba(240,84,76,.22);}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:var(--serif);font-size:16px;letter-spacing:.02em;color:var(--text-0);}
.logo-text i{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-2);}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;justify-content:center;}
.nav-links a{position:relative;padding:8px 13px;font-size:14px;color:var(--text-1);border-radius:8px;transition:color .18s,background .18s;}
.nav-links a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-links a.active{color:var(--text-0);}
.nav-links a.active::after{content:"";position:absolute;left:13px;right:13px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(240,84,76,.7);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-city{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:5px;transition:color .18s;}
.nav-city:hover{color:var(--primary);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--text-0);align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text-0);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text-0);border-radius:2px;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.drawer{display:none;border-top:1px solid var(--line);background:rgba(9,22,33,.98);padding:14px 0 20px;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--text-1);border-bottom:1px solid var(--line-weak);}
.drawer a.active{color:var(--primary);}
.drawer .drawer-cta{margin-top:14px;}
body.nav-open .drawer{display:block;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--primary);color:#150506;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF6B60;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(240,84,76,.5),0 12px 28px rgba(240,84,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 4px 14px rgba(240,84,76,.24);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-0);border:1px solid var(--line);backdrop-filter:blur(10px);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-text:hover{color:#FF8F86;}

/* ============ 徽章与标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);}
.badge-live{color:var(--accent);border-color:rgba(101,224,194,.35);}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(101,224,194,.9);}
.badge-hot{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.5);color:#FFB1AA;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--secondary);}

/* ============ 板块基础 ============ */
.section{padding:88px 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(14,34,49,.72),rgba(10,24,36,.42));border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.sec-title{font-family:var(--serif);font-size:34px;line-height:1.3;color:var(--text-0);}
.sec-title em{font-style:normal;color:var(--primary);}
.sec-desc{margin-top:10px;color:var(--text-1);font-size:15px;max-width:660px;}

/* ============ 面包屑 ============ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);flex-wrap:wrap;}
.crumbs a{color:var(--text-1);transition:color .18s;}
.crumbs a:hover{color:var(--primary);}
.crumbs .cur{color:var(--text-1);}

/* ============ 分类标题带 ============ */
.band{position:relative;padding:56px 0 60px;overflow:hidden;border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,#08141F 0%,#0B1F2D 55%,#0A1824 100%);}
.band-bg{position:absolute;inset:0;z-index:0;}
.band-bg img{width:100%;height:100%;object-fit:cover;opacity:.16;filter:saturate(.85);}
.band-grid{position:absolute;inset:0;z-index:1;opacity:.07;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:64px 64px;}
.band .container{position:relative;z-index:2;}
.band h1{font-family:var(--serif);font-size:44px;line-height:1.28;margin:18px 0 14px;max-width:900px;}
.band h1 span{color:var(--primary);}
.band-lead{max-width:720px;color:var(--text-1);font-size:16px;}
.band-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.stat-chip{display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);backdrop-filter:blur(12px);}
.stat-chip b{font-family:var(--serif);font-size:20px;color:var(--text-0);font-variant-numeric:tabular-nums;}
.stat-chip span{font-size:13px;color:var(--text-2);}

/* ============ 筛选 chips ============ */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px;}
.chip{height:36px;padding:0 16px;border-radius:999px;font-size:13px;color:var(--text-1);
  background:rgba(255,255,255,.04);border:1px solid var(--line);transition:all .18s;}
.chip:hover{color:var(--text-0);border-color:rgba(240,84,76,.5);}
.chip[aria-pressed="true"]{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.62);color:#FFC3BD;box-shadow:0 0 0 1px rgba(240,84,76,.22) inset;}

/* ============ 卡片列表 ============ */
.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.06);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;}
.card:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.55);box-shadow:var(--sh-2);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line-weak);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.card:hover .card-media img{transform:scale(1.045);}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,15,23,0) 42%,rgba(7,15,23,.72) 100%);}
.card-tag{position:absolute;left:14px;top:14px;z-index:2;}
.card-body{padding:22px;}
.card-title{font-family:var(--serif);font-size:21px;line-height:1.45;color:var(--text-0);}
.card-text{margin-top:10px;color:var(--text-1);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:18px;padding-top:14px;border-top:1px solid var(--line-weak);font-size:12.5px;color:var(--text-2);}
.card-meta .num{font-variant-numeric:tabular-nums;}
.list-more{display:flex;justify-content:center;margin-top:36px;}

/* ============ 玩法步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative;}
.step{position:relative;padding:26px 22px 24px;border-radius:var(--r-card);border:1px solid var(--line);
  background:var(--panel);backdrop-filter:blur(12px);box-shadow:var(--sh-1);transition:transform .2s,border-color .2s;}
.step:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.5);}
.step-no{font-family:var(--serif);font-size:34px;line-height:1;color:rgba(240,84,76,.85);font-variant-numeric:tabular-nums;}
.step h3{margin-top:12px;font-size:19px;font-family:var(--serif);}
.step p{margin-top:10px;color:var(--text-1);font-size:14.5px;}

/* ============ 安全提示 ============ */
.tips{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.tip{display:flex;gap:14px;padding:20px;border-radius:14px;border:1px solid rgba(101,224,194,.22);
  background:rgba(101,224,194,.06);transition:border-color .2s,transform .2s;}
.tip:hover{transform:translateY(-3px);border-color:rgba(101,224,194,.5);}
.tip-ico{flex:0 0 38px;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(101,224,194,.14);border:1px solid rgba(101,224,194,.34);color:var(--accent);font-size:15px;font-weight:700;}
.tip h3{font-size:16px;color:var(--text-0);}
.tip p{margin-top:6px;font-size:14px;color:var(--text-1);}

/* ============ FAQ ============ */
.faq{display:grid;gap:14px;max-width:900px;}
.faq details{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);transition:background .2s,border-color .2s;}
.faq details[open]{background:rgba(255,255,255,.05);border-color:rgba(240,84,76,.42);}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 22px;min-height:62px;
  cursor:pointer;list-style:none;font-size:16px;color:var(--text-0);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";font-size:20px;line-height:1;color:var(--primary);transition:transform .22s ease;}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq .faq-a{padding:0 22px 20px;color:var(--text-1);font-size:14.5px;border-left:2px solid transparent;}
.faq details[open] .faq-a{border-left:2px solid var(--primary);margin-left:22px;padding-left:16px;padding-right:16px;}

/* ============ 相关文章（左图右文） ============ */
.rel-list{display:grid;gap:16px;}
.rel-item{display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;padding:16px;
  border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.03);transition:border-color .2s,transform .2s,background .2s;}
.rel-item:hover{border-color:rgba(240,84,76,.5);transform:translateX(4px);background:rgba(255,255,255,.05);}
.rel-item img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;border:1px solid rgba(255,255,255,.08);}
.rel-item h3{font-size:17px;font-family:var(--serif);color:var(--text-0);}
.rel-item p{margin-top:6px;font-size:14px;color:var(--text-1);}
.rel-meta{margin-top:10px;font-size:12.5px;color:var(--text-2);display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 下载 CTA ============ */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-panel);border:1px solid rgba(240,84,76,.32);
  background:linear-gradient(120deg,rgba(20,44,62,.92),rgba(11,26,38,.94));
  box-shadow:var(--sh-2);padding:44px;}
.cta-band::before{content:"";position:absolute;right:-90px;top:-110px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,84,76,.34),transparent 68%);pointer-events:none;}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-family:var(--serif);font-size:30px;line-height:1.35;}
.cta-inner p{margin-top:10px;color:var(--text-1);font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.footer{background:#061019;border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand b{display:block;font-family:var(--serif);font-size:17px;color:var(--text-0);}
.footer-brand p{margin-top:12px;color:var(--text-2);font-size:13.5px;line-height:1.85;max-width:320px;}
.footer-col h4{font-size:14px;color:var(--text-0);margin-bottom:14px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:13.5px;color:var(--text-2);padding:5px 0;transition:color .18s;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{width:104px;height:104px;border-radius:12px;border:1px dashed rgba(255,255,255,.22);
  display:grid;place-items:center;text-align:center;font-size:12px;color:var(--text-2);line-height:1.5;background:rgba(255,255,255,.03);}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line-weak);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-2);}
.fb-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.fb-left a{color:var(--text-2);}
.fb-left a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .band h1{font-size:36px;}
  .sec-title{font-size:30px;}
  .cards-2{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .tips{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .section{padding:64px 0;}
}
@media (max-width:860px){
  .topbar-mid{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .logo{min-width:auto;}
  .rel-item{grid-template-columns:150px 1fr;gap:14px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .band{padding:40px 0 44px;}
  .band h1{font-size:30px;}
  .sec-title{font-size:26px;}
  .cta-band{padding:28px 22px;}
  .cta-inner h2{font-size:24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer{padding:48px 0 24px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
  .band h1{font-size:26px;}
  .sec-title{font-size:23px;}
  .card-body{padding:20px;}
  .rel-item{grid-template-columns:1fr;}
  .rel-item img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .stat-chip{padding:10px 14px;}
  .faq summary{font-size:15px;padding:0 18px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .nav-right .btn-sm{width:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#070F17; --bg-1:#0A1824; --bg-2:#0E2231;
  --panel:rgba(17,37,54,.58); --panel-solid:#102535;
  --primary:#F0544C; --primary-deep:#C9332D; --secondary:#FF8FA3; --accent:#65E0C2;
  --text-0:#EDF4F9; --text-1:#A9BECD; --text-2:#6F8798;
  --line:rgba(255,255,255,.10); --line-weak:rgba(255,255,255,.06);
  --r-card:18px; --r-panel:24px; --r-btn:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(240,84,76,.40), 0 8px 24px rgba(240,84,76,.28);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text-0);background:var(--bg-0);
  background-image:radial-gradient(900px 500px at 85% -8%,rgba(240,84,76,.16),transparent 62%),
                   radial-gradient(700px 420px at 5% 12%,rgba(101,224,194,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;overflow-wrap:break-word;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ 顶栏 ============ */
.topbar{height:38px;background:#08141F;border-bottom:1px solid var(--line-weak);font-size:13px;color:var(--text-1);}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:14px;white-space:nowrap;}
.topbar-city{color:var(--text-0);}
.topbar-city span{color:var(--accent);margin-right:4px;}
.topbar-mid{display:flex;align-items:center;gap:22px;flex:1;justify-content:center;}
.topbar-mid a{color:var(--text-1);transition:color .18s;}
.topbar-mid a:hover{color:var(--primary);}
.topbar-right{display:flex;align-items:center;white-space:nowrap;}
.topbar-right a{padding:0 10px;color:var(--text-1);border-left:1px solid var(--line-weak);transition:color .18s;}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:hover{color:var(--text-0);}

/* ============ 主导航 ============ */
.nav{position:sticky;top:0;z-index:60;background:rgba(8,20,31,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav .container{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(240,84,76,.30),rgba(255,143,163,.12));
  border:1px solid rgba(240,84,76,.45);box-shadow:0 6px 18px rgba(240,84,76,.22);}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:var(--serif);font-size:16px;letter-spacing:.02em;color:var(--text-0);}
.logo-text i{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-2);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-links a{position:relative;padding:8px 12px;font-size:14px;color:var(--text-1);border-radius:8px;transition:color .18s,background .18s;}
.nav-links a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-links a.active{color:var(--text-0);}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(240,84,76,.7);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-city{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:5px;transition:color .18s;}
.nav-city:hover{color:var(--primary);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--text-0);font-size:16px;}
.drawer{display:none;border-top:1px solid var(--line);background:rgba(9,22,33,.98);padding:10px 0 20px;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--text-1);border-bottom:1px solid var(--line-weak);}
.drawer a.active{color:var(--primary);}
.drawer .drawer-cta{margin-top:14px;}
body.nav-open .drawer{display:block;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--primary);color:#150506;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF6B60;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(240,84,76,.5),0 12px 28px rgba(240,84,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 4px 14px rgba(240,84,76,.24);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-0);border:1px solid var(--line);backdrop-filter:blur(10px);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-text:hover{color:#FF8F86;}

/* ============ 徽章 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);}
.badge-live{color:var(--accent);border-color:rgba(101,224,194,.35);}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(101,224,194,.9);}
.badge-hot{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.5);color:#FFB1AA;}

/* ============ 板块 ============ */
.section{padding:88px 0;position:relative;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-title{font-family:var(--serif);font-size:34px;line-height:1.35;margin:0 0 12px;color:var(--text-0);letter-spacing:.01em;}
.section-sub{margin:0;color:var(--text-1);font-size:15px;}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);flex-wrap:wrap;}
.breadcrumb a{color:var(--text-1);transition:color .18s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb i{font-style:normal;color:var(--text-2);opacity:.6;}
.breadcrumb .cur{color:var(--text-1);}

/* ============ 文章标题区 ============ */
.art-title-band{
  padding:36px 0 34px;border-bottom:1px solid var(--line-weak);
  background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);
  background-size:56px 56px;
}
.art-tagrow{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:20px 0 16px;}
.art-title{font-family:var(--serif);font-size:clamp(30px,4vw,46px);line-height:1.32;margin:0 0 20px;color:var(--text-0);letter-spacing:.01em;font-weight:700;}
.art-meta{display:flex;align-items:center;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--text-2);}
.art-meta span{display:inline-flex;align-items:center;gap:6px;}
.art-meta i{color:var(--text-2);}
.art-meta b{color:var(--text-1);font-variant-numeric:tabular-nums;}
.art-meta a{color:var(--text-1);}
.art-meta a:hover{color:var(--primary);}

/* ============ 摘要区 ============ */
.art-summary-band{padding:34px 0 8px;}
.art-summary-card{
  display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px;align-items:center;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);
  padding:24px;box-shadow:var(--sh-2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.art-summary-cover{border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);aspect-ratio:16/9;}
.art-summary-cover img{width:100%;height:100%;object-fit:cover;}
.art-summary-body{position:relative;padding-left:18px;border-left:2px solid var(--primary);}
.art-summary-text{margin:0 0 16px;color:var(--text-1);font-size:15px;line-height:1.8;max-height:7.2em;overflow:hidden;}
.art-summary-foot{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:14px;font-weight:700;
  background:linear-gradient(150deg,rgba(240,84,76,.4),rgba(255,143,163,.18));border:1px solid rgba(240,84,76,.45);color:#fff;}
.art-author{display:flex;flex-direction:column;line-height:1.4;}
.art-author b{font-size:14px;color:var(--text-0);}
.art-author i{font-style:normal;font-size:12px;color:var(--text-2);}
.art-actions{margin-left:auto;display:flex;gap:8px;}
.btn-mini{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;font-size:13px;border-radius:8px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);transition:all .18s;}
.btn-mini:hover{border-color:var(--primary);color:var(--text-0);}

/* ============ 正文 + 侧栏 ============ */
.art-body-band{padding:44px 0 76px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.article-main{min-width:0;}
.article-body{
  max-width:820px;font-size:16px;line-height:1.85;color:var(--text-1);
  background:rgba(255,255,255,.015);border:1px solid var(--line-weak);border-radius:var(--r-panel);
  padding:36px 38px;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{font-family:var(--serif);font-size:26px;line-height:1.5;color:var(--text-0);margin:42px 0 16px;
  padding-left:14px;border-left:3px solid var(--primary);font-weight:700;}
.article-body h3{font-size:19px;line-height:1.6;color:var(--text-0);margin:30px 0 12px;font-weight:700;}
.article-body h4{font-size:16px;color:var(--text-0);margin:24px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:#FF8F86;}
.article-body img{border-radius:12px;border:1px solid rgba(255,255,255,.08);margin:24px 0;width:100%;height:auto;}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:rgba(255,255,255,.04);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:var(--text-1);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px;}
.article-body li{margin-bottom:9px;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body strong{color:var(--text-0);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:12px;color:var(--text-2);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:rgba(255,255,255,.04);color:var(--text-0);}

/* 空态 */
.empty-state{text-align:center;padding:40px 10px;}
.empty-state i{font-size:38px;color:var(--text-2);}
.empty-state h2{margin:18px 0 10px;justify-content:center;}
.empty-state p{margin:0 0 22px;color:var(--text-1);}

/* 侧栏 */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.aside-card{background:var(--panel-solid);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.aside-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--text-0);margin:0 0 14px;letter-spacing:.02em;}
.aside-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--primary);}
.toc-list a{display:block;padding:8px 0 8px 12px;font-size:13px;line-height:1.5;color:var(--text-1);
  border-left:2px solid var(--line-weak);transition:color .18s,border-color .18s,background .18s;}
.toc-list a:hover{color:var(--text-0);background:rgba(255,255,255,.03);}
.toc-list a.active{color:var(--primary);border-left-color:var(--primary);}
.hot-list{list-style:none;margin:0;padding:0;}
.hot-list li + li{border-top:1px solid var(--line-weak);}
.hot-list a{display:flex;gap:10px;padding:11px 0;font-size:13.5px;line-height:1.55;color:var(--text-1);transition:color .18s;}
.hot-list a:hover{color:var(--primary);}
.hot-list .rank{font-family:var(--serif);font-size:15px;color:var(--text-2);min-width:16px;}
.hot-list li:nth-child(-n+3) .rank{color:var(--primary);}
.aside-dl{background:linear-gradient(160deg,rgba(240,84,76,.16),rgba(101,224,194,.07));border:1px solid rgba(240,84,76,.28);}
.aside-dl p{margin:0 0 14px;font-size:13px;color:var(--text-1);line-height:1.7;}
.qr-box{width:100%;aspect-ratio:1/1;max-width:120px;margin:0 auto 14px;border-radius:10px;
  border:1px dashed rgba(255,255,255,.22);display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-2);background:rgba(0,0,0,.18);padding:8px;}

/* ============ 相关推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s,border-color .2s,box-shadow .2s;}
.rel-card:hover{transform:translateY(-4px);border-color:var(--primary);box-shadow:var(--sh-2);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{margin:0;font-size:16px;line-height:1.6;color:var(--text-0);font-weight:700;}
.rel-body p{margin:0;font-size:13px;line-height:1.7;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-2);margin-top:auto;padding-top:10px;border-top:1px solid var(--line-weak);}
.empty-hint{color:var(--text-2);font-size:14px;margin:0;padding:28px;border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;}

/* ============ 上一篇/下一篇 ============ */
.pn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.pn-card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;transition:border-color .2s,transform .2s,box-shadow .2s;}
.pn-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--sh-2);}
.pn-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--text-2);letter-spacing:.08em;margin-bottom:10px;}
.pn-card h3{margin:0;font-size:16px;line-height:1.6;color:var(--text-0);font-weight:700;}
.pn-card.next{text-align:right;}
.pn-card.next .pn-label{justify-content:flex-end;}

/* ============ 返回入口 ============ */
.back-bar{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:22px 24px;
  border:1px solid var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.02);}
.back-bar .back-note{font-size:13px;color:var(--text-2);margin-left:auto;}

/* ============ 转化 CTA ============ */
.cta-band{padding:0 0 88px;}
.cta-box{
  position:relative;overflow:hidden;border-radius:var(--r-panel);border:1px solid rgba(240,84,76,.28);
  background:linear-gradient(120deg,rgba(240,84,76,.16),rgba(10,24,36,.9) 58%,rgba(101,224,194,.10));
  padding:44px;
}
.cta-box::after{content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,84,76,.35),transparent 68%);filter:blur(6px);pointer-events:none;}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:36px;align-items:center;}
.cta-inner h2{font-family:var(--serif);font-size:32px;line-height:1.35;margin:0 0 12px;color:var(--text-0);}
.cta-inner p{margin:0;color:var(--text-1);font-size:15px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text-0);font-size:15px;transition:border-color .2s,box-shadow .2s;}
.cta-form input::placeholder{color:var(--text-2);}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(240,84,76,.18);}
.cta-tip{font-size:12px;color:var(--text-2);margin-top:12px;}

/* ============ 页脚 ============ */
.footer{background:#060D14;border-top:1px solid var(--line);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:36px;}
.footer-brand b{font-family:var(--serif);font-size:17px;color:var(--text-0);display:block;margin-bottom:14px;letter-spacing:.02em;}
.footer-brand p{margin:0;font-size:13px;line-height:1.85;color:var(--text-2);max-width:300px;}
.footer-col h4{font-size:14px;color:var(--text-0);margin:0 0 14px;letter-spacing:.02em;}
.footer-col a{display:block;font-size:13px;color:var(--text-2);padding:5px 0;transition:color .18s;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{width:96px;height:96px;border-radius:10px;border:1px dashed rgba(255,255,255,.2);
  display:grid;place-items:center;text-align:center;font-size:11px;color:var(--text-2);
  background:rgba(255,255,255,.02);line-height:1.5;padding:6px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-weak);font-size:12px;color:var(--text-2);}
.fb-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.fb-left a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .article-aside{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}
  .article-aside .aside-card{flex:1 1 260px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:900px){
  .topbar-mid{display:none;}
  .nav-links{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .logo{min-width:0;}
  .article-body{padding:28px 24px;}
  .art-summary-card{grid-template-columns:minmax(0,1fr);}
  .art-summary-cover{aspect-ratio:16/9;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .art-body-band{padding:32px 0 56px;}
  .section-title{font-size:26px;}
  .cta-box{padding:30px 22px;}
  .cta-inner h2{font-size:25px;}
  .rel-grid{grid-template-columns:minmax(0,1fr);}
  .pn-grid{grid-template-columns:minmax(0,1fr);}
  .pn-card.next{text-align:left;}
  .pn-card.next .pn-label{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .art-meta{gap:14px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .art-title{font-size:26px;}
  .article-body{padding:22px 18px;font-size:15.5px;}
  .article-body h2{font-size:21px;}
  .art-summary-card{padding:18px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .btn{width:100%;}
  .nav-right .btn-sm{width:auto;}
  .back-bar .back-note{margin-left:0;width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --bg-0:#070F17; --bg-1:#0A1824; --bg-2:#0E2231;
  --panel:rgba(17,37,54,.58); --panel-solid:#102535;
  --primary:#F0544C; --primary-deep:#C9332D; --secondary:#FF8FA3; --accent:#65E0C2;
  --text-0:#EDF4F9; --text-1:#A9BECD; --text-2:#6F8798;
  --line:rgba(255,255,255,.10); --line-weak:rgba(255,255,255,.06);
  --r-card:18px; --r-panel:24px; --r-btn:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(240,84,76,.40), 0 8px 24px rgba(240,84,76,.28);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text-0);background-color:var(--bg-0);
  background-image:radial-gradient(900px 500px at 85% -8%,rgba(240,84,76,.16),transparent 62%),
                   radial-gradient(700px 420px at 5% 12%,rgba(101,224,194,.10),transparent 60%);
  background-repeat:no-repeat;background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-family:var(--serif);font-weight:700;line-height:1.3;color:var(--text-0);letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
/* ============ 顶栏 ============ */
.topbar{height:38px;background:#08141F;border-bottom:1px solid var(--line-weak);font-size:13px;color:var(--text-1);}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:12px;white-space:nowrap;}
.topbar-city{color:var(--text-0);}
.topbar-city span{color:var(--accent);margin-right:6px;font-size:12px;}
.topbar-left a{color:var(--text-2);transition:color .18s;}
.topbar-left a:hover{color:var(--primary);}
.topbar-mid{display:flex;align-items:center;gap:22px;flex:1;justify-content:center;}
.topbar-mid a{color:var(--text-1);transition:color .18s;}
.topbar-mid a:hover{color:var(--primary);}
.topbar-right{display:flex;align-items:center;gap:0;white-space:nowrap;}
.topbar-right a{padding:0 10px;color:var(--text-1);border-left:1px solid var(--line-weak);transition:color .18s;}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:hover{color:var(--text-0);}
/* ============ 主导航 ============ */
.nav{position:sticky;top:0;z-index:60;background:rgba(8,20,31,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav .container{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(150deg,rgba(240,84,76,.30),rgba(255,143,163,.12));
  border:1px solid rgba(240,84,76,.45);box-shadow:0 6px 18px rgba(240,84,76,.22);}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:var(--serif);font-size:16px;letter-spacing:.02em;color:var(--text-0);}
.logo-text i{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-2);}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
.nav-links a{position:relative;padding:8px 12px;font-size:14px;color:var(--text-1);border-radius:8px;transition:color .18s,background .18s;white-space:nowrap;}
.nav-links a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-links a.active{color:var(--text-0);}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(240,84,76,.7);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-city{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:5px;transition:color .18s;white-space:nowrap;}
.nav-city:hover{color:var(--primary);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;background:rgba(255,255,255,.04);}
.nav-toggle svg{width:18px;height:18px;stroke:var(--text-0);stroke-width:2;fill:none;stroke-linecap:round;}
.drawer{display:none;border-top:1px solid var(--line);background:rgba(9,22,33,.98);padding:10px 0 22px;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--text-1);border-bottom:1px solid var(--line-weak);}
.drawer a.active{color:var(--primary);}
.drawer .drawer-cta{margin-top:16px;}
body.nav-open .drawer{display:block;}
/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--primary);color:#150506;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF6B60;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(240,84,76,.5),0 12px 28px rgba(240,84,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 4px 14px rgba(240,84,76,.24);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-0);border:1px solid var(--line);backdrop-filter:blur(10px);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;transition:color .18s;}
.btn-text:hover{color:#FF8F86;}
/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);white-space:nowrap;}
.badge-live{color:var(--accent);border-color:rgba(101,224,194,.35);}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(101,224,194,.9);}
.badge-hot{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.5);color:#FFB1AA;}
.badge-soft{background:rgba(255,143,163,.12);border-color:rgba(255,143,163,.32);color:#FFC2CD;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--secondary);}
.chip{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;font-size:13px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-1);transition:all .18s;}
.chip:hover{border-color:rgba(240,84,76,.6);color:var(--text-0);background:rgba(240,84,76,.10);}
.chip.is-active{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.55);color:#FFB1AA;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
/* ============ 板块 ============ */
.section{padding:88px 0;position:relative;}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{font-size:34px;margin:12px 0 14px;}
.sec-head p{font-size:15px;color:var(--text-1);}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head-row .sec-head{margin-bottom:0;}
.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
}
/* ============ 玻璃卡 ============ */
.glass{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass{background:var(--panel-solid);}
}
/* ============ 标题带 ============ */
.page-hero{
  position:relative;padding:56px 0 64px;overflow:hidden;
  background:linear-gradient(180deg,rgba(10,24,36,.94),rgba(7,15,23,.98)),url("/assets/images/f2f8d93b4f566933.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 300px at 88% 0%,rgba(240,84,76,.20),transparent 68%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:26px;}
.breadcrumb a{color:var(--text-2);transition:color .18s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-1);}
.page-title{font-size:48px;line-height:1.2;margin:16px 0 18px;}
.page-lead{max-width:800px;font-size:16px;color:var(--text-1);}
.page-hero .chip-row{margin-top:26px;}
.stat-strip{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.stat-chip{
  display:inline-flex;align-items:baseline;gap:8px;padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);font-size:13px;color:var(--text-1);
}
.stat-chip b{font-family:var(--serif);font-size:18px;color:var(--text-0);font-variant-numeric:tabular-nums;}
/* ============ 论坛布局 ============ */
.forum-layout{display:grid;grid-template-columns:336px minmax(0,1fr);gap:28px;align-items:start;}
.index-panel{position:sticky;top:96px;padding:26px 24px;border-radius:var(--r-panel);}
.index-panel h2{font-size:20px;margin-bottom:6px;}
.index-panel .idx-note{font-size:13px;color:var(--text-2);margin-bottom:20px;}
.idx-group{margin-bottom:22px;}
.idx-group:last-child{margin-bottom:0;}
.idx-group h3{font-size:13px;letter-spacing:.1em;color:var(--text-2);font-family:var(--sans);font-weight:600;margin-bottom:10px;}
.idx-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-1);
  border:1px solid transparent;transition:all .18s;
}
.idx-list a:hover{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text-0);}
.idx-list a .num{font-size:12px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.idx-list a.is-key{color:var(--text-0);background:rgba(240,84,76,.10);border-color:rgba(240,84,76,.34);}
.idx-list a.is-key:hover{background:rgba(240,84,76,.16);}
.topic-panel{padding:8px 0 0;overflow:hidden;}
.topic-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;border-bottom:1px solid var(--line);}
.topic-panel-head h2{font-size:20px;}
.topic-panel-head .meta{font-size:13px;color:var(--text-2);white-space:nowrap;}
.topic-row{
  display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:16px;align-items:start;
  padding:18px 24px;border-bottom:1px solid var(--line-weak);transition:background .18s;
}
.topic-row:last-child{border-bottom:0;}
.topic-row:hover{background:rgba(255,255,255,.04);}
.avatar{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  font-size:14px;font-weight:700;color:#0b1a26;letter-spacing:.02em;
  background:linear-gradient(140deg,var(--secondary),var(--accent));
  border:1px solid rgba(255,255,255,.16);
}
.avatar.v2{background:linear-gradient(140deg,#8FD3FF,#65E0C2);}
.avatar.v3{background:linear-gradient(140deg,#FFB1AA,#FF8FA3);}
.avatar.v4{background:linear-gradient(140deg,#C7B8FF,#8FD3FF);}
.topic-title{display:block;font-size:16px;font-weight:600;color:var(--text-0);line-height:1.5;transition:color .18s;}
.topic-title:hover{color:var(--primary);}
.topic-desc{font-size:13px;color:var(--text-2);margin-top:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.topic-side{text-align:right;font-size:12px;color:var(--text-2);white-space:nowrap;font-variant-numeric:tabular-nums;}
.topic-side b{display:block;font-family:var(--serif);font-size:17px;color:var(--text-1);}
.topic-foot{padding:20px 24px;display:flex;justify-content:center;border-top:1px solid var(--line);}
/* ============ 发帖指引 ============ */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.guide-card{padding:26px 24px;border-radius:var(--r-card);transition:transform .2s,border-color .2s,box-shadow .2s;}
.guide-card:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.5);box-shadow:var(--sh-2);}
.icon-box{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:rgba(240,84,76,.14);border:1px solid rgba(240,84,76,.34);
}
.icon-box svg{width:20px;height:20px;stroke:var(--secondary);stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.guide-card h3{font-size:19px;margin-bottom:10px;}
.guide-card p{font-size:14px;color:var(--text-1);}
.guide-card .mini-tag{display:inline-block;margin-top:14px;font-size:12px;color:var(--accent);letter-spacing:.04em;}
/* ============ 热门榜 ============ */
.rank-wrap{display:grid;grid-template-columns:minmax(0,1fr);gap:0;}
.rank-item{display:flex;gap:20px;align-items:flex-start;padding:20px 4px;border-bottom:1px solid var(--line-weak);transition:background .18s;}
.rank-item:hover{background:rgba(255,255,255,.035);}
.rank-item:last-child{border-bottom:0;}
.rank-num{font-family:var(--serif);font-size:34px;line-height:1;color:rgba(240,84,76,.85);min-width:54px;font-variant-numeric:tabular-nums;}
.rank-body{min-width:0;flex:1;}
.rank-body a{font-size:16px;font-weight:600;color:var(--text-0);transition:color .18s;display:inline-block;}
.rank-body a:hover{color:var(--primary);}
.rank-body p{font-size:13px;color:var(--text-2);margin-top:6px;}
.rank-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px;}
/* ============ 公约 ============ */
.rules-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.rule-panel{padding:28px 26px;border-radius:var(--r-panel);}
.rule-panel h3{font-size:20px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(101,224,194,.8);display:inline-block;}
.dot.warn{background:var(--secondary);box-shadow:0 0 10px rgba(255,143,163,.8);}
.rule-panel .sub{font-size:13px;color:var(--text-2);margin-bottom:18px;}
.rule-list li{position:relative;padding-left:22px;font-size:14px;color:var(--text-1);margin-bottom:12px;}
.rule-list li:last-child{margin-bottom:0;}
.rule-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:2px;border-radius:2px;background:var(--primary);}
/* ============ 相关文章 ============ */
.post-list{display:grid;gap:18px;}
.post-row{
  display:grid;grid-template-columns:184px minmax(0,1fr);gap:20px;align-items:center;
  padding:16px;border-radius:var(--r-card);transition:transform .2s,border-color .2s;
  background:var(--panel);border:1px solid var(--line);
}
.post-row:hover{transform:translateY(-3px);border-color:rgba(240,84,76,.5);}
.post-thumb{aspect-ratio:16/9;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08);}
.post-thumb img{width:100%;height:100%;object-fit:cover;}
.post-body h3{font-size:17px;line-height:1.5;margin-bottom:8px;}
.post-body h3 a{transition:color .18s;}
.post-body h3 a:hover{color:var(--primary);}
.post-body p{font-size:13px;color:var(--text-2);margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--text-2);}
/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-panel);padding:44px 40px;
  background:linear-gradient(120deg,rgba(14,34,49,.96),rgba(10,24,36,.92));
  border:1px solid rgba(240,84,76,.28);box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,84,76,.32),transparent 66%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:32px;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--text-1);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
/* ============ 页脚 ============ */
.footer{background:#060D14;border-top:1px solid var(--line);padding:64px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand b{display:block;font-family:var(--serif);font-size:17px;margin-bottom:14px;letter-spacing:.02em;}
.footer-brand p{font-size:13px;color:var(--text-2);line-height:1.85;max-width:300px;}
.footer-col h4{font-size:14px;font-family:var(--sans);font-weight:600;color:var(--text-0);margin-bottom:14px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:13px;color:var(--text-2);padding:5px 0;transition:color .18s;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{
  width:104px;height:104px;border-radius:12px;display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--text-2);
  background:rgba(255,255,255,.04);border:1px dashed rgba(255,255,255,.18);
}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-weak);font-size:12px;color:var(--text-2);}
.fb-left{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.fb-left a{color:var(--text-2);transition:color .18s;}
.fb-left a:hover{color:var(--primary);}
/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links a{padding:8px 9px;font-size:13px;}
  .logo{min-width:auto;}
}
@media (max-width:1024px){
  .section{padding:68px 0;}
  .page-title{font-size:40px;}
  .forum-layout{grid-template-columns:1fr;}
  .index-panel{position:static;}
  .guide-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-col:nth-child(4),.footer-col:nth-child(5){grid-column:span 1;}
  .topbar-mid{display:none;}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-city{display:none;}
  .rules-grid{grid-template-columns:1fr;}
  .sec-head h2{font-size:29px;}
  .cta-inner h2{font-size:27px;}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .page-hero{padding:40px 0 48px;}
  .page-title{font-size:32px;}
  .page-lead{font-size:15px;}
  .guide-grid{grid-template-columns:1fr;}
  .post-row{grid-template-columns:1fr;gap:14px;}
  .topic-row{grid-template-columns:40px minmax(0,1fr);gap:12px;padding:16px 18px;}
  .topic-side{grid-column:2;text-align:left;display:flex;align-items:center;gap:12px;margin-top:4px;}
  .topic-side b{font-size:14px;}
  .topic-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1/-1;}
  .footer-brand p{max-width:none;}
  .cta-band{padding:32px 22px;}
  .cta-actions .btn{width:100%;}
  .rank-num{font-size:28px;min-width:44px;}
}
@media (max-width:520px){
  .page-title{font-size:27px;}
  .sec-head h2{font-size:25px;}
  .stat-chip{width:100%;justify-content:flex-start;}
  .chip{height:32px;font-size:12px;padding:0 12px;}
  .topic-panel-head{padding:16px 18px;flex-wrap:wrap;}
  .topic-foot{padding:16px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --bg-0:#070F17; --bg-1:#0A1824; --bg-2:#0E2231;
  --panel:rgba(17,37,54,.58); --panel-solid:#102535;
  --primary:#F0544C; --primary-deep:#C9332D; --secondary:#FF8FA3; --accent:#65E0C2;
  --text-0:#EDF4F9; --text-1:#A9BECD; --text-2:#6F8798;
  --line:rgba(255,255,255,.10); --line-weak:rgba(255,255,255,.06);
  --r-card:18px; --r-panel:24px; --r-btn:10px;
  --sh-1:0 8px 24px rgba(0,0,0,.28);
  --sh-2:0 18px 50px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(240,84,76,.40), 0 8px 24px rgba(240,84,76,.28);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;font-family:var(--sans);font-size:16px;line-height:1.75;
  color:var(--text-0);background:var(--bg-0);
  background-image:radial-gradient(900px 500px at 85% -8%,rgba(240,84,76,.16),transparent 62%),
                   radial-gradient(700px 420px at 5% 12%,rgba(101,224,194,.10),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;letter-spacing:.01em;line-height:1.32;}
p{margin:0;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
/* 顶栏 */
.topbar{height:38px;background:#08141F;border-bottom:1px solid var(--line-weak);font-size:13px;color:var(--text-1);}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.topbar-city{color:var(--text-0);}
.topbar-city span{color:var(--accent);margin-right:4px;}
.topbar-mid{display:flex;align-items:center;gap:22px;flex:1;justify-content:center;}
.topbar-mid a{color:var(--text-1);transition:color .18s;}
.topbar-mid a:hover{color:var(--primary);}
.topbar-right{display:flex;align-items:center;gap:0;white-space:nowrap;}
.topbar-right a{padding:0 10px;color:var(--text-1);border-left:1px solid var(--line-weak);transition:color .18s;}
.topbar-right a:first-child{border-left:0;}
.topbar-right a:hover{color:var(--text-0);}
/* 主导航 */
.nav{position:sticky;top:0;z-index:60;background:rgba(8,20,31,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);}
.nav .container{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.logo{display:flex;align-items:center;gap:11px;min-width:220px;}
.logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(240,84,76,.30),rgba(255,143,163,.12));
  border:1px solid rgba(240,84,76,.45);box-shadow:0 6px 18px rgba(240,84,76,.22);}
.logo-mark svg{width:22px;height:22px;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:var(--serif);font-size:16px;letter-spacing:.02em;color:var(--text-0);}
.logo-text i{font-style:normal;font-size:11px;letter-spacing:.14em;color:var(--text-2);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;}
.nav-links a{position:relative;padding:8px 12px;font-size:14px;color:var(--text-1);border-radius:8px;transition:color .18s,background .18s;white-space:nowrap;}
.nav-links a:hover{color:var(--text-0);background:rgba(255,255,255,.04);}
.nav-links a.active{color:var(--text-0);}
.nav-links a.active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(240,84,76,.7);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-city{font-size:13px;color:var(--text-1);display:flex;align-items:center;gap:5px;transition:color .18s;white-space:nowrap;}
.nav-city:hover{color:var(--primary);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;color:var(--text-0);align-items:center;justify-content:center;}
.drawer{display:none;border-top:1px solid var(--line);background:rgba(9,22,33,.98);padding:14px 0 20px;}
.drawer a{display:block;padding:12px 4px;font-size:15px;color:var(--text-1);border-bottom:1px solid var(--line-weak);}
.drawer a.active{color:var(--primary);}
.drawer .drawer-cta{margin-top:14px;}
body.nav-open .drawer{display:block;}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--primary);color:#150506;box-shadow:var(--sh-glow);}
.btn-primary:hover{background:#FF6B60;transform:translateY(-1px);box-shadow:0 0 0 1px rgba(240,84,76,.5),0 12px 28px rgba(240,84,76,.36);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(240,84,76,.35),0 4px 14px rgba(240,84,76,.24);}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text-0);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--primary);color:#fff;transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 16px;font-size:13px;border-radius:8px;}
.btn-block{width:100%;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.btn-text:hover{color:#FF8F86;}
/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;font-size:12px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);white-space:nowrap;}
.badge-live{color:var(--accent);border-color:rgba(101,224,194,.35);}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(101,224,194,.9);}
.badge-hot{background:rgba(240,84,76,.16);border-color:rgba(240,84,76,.5);color:#FFB1AA;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--secondary);}
/* 板块 */
.section{padding:88px 0;position:relative;border-top:1px solid var(--line-weak);}
.section:first-of-type{border-top:0;}
.section-alt{background:linear-gradient(180deg,rgba(14,34,49,.62),rgba(7,15,23,0));}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{font-size:34px;margin:12px 0 14px;}
.section-head p{color:var(--text-1);font-size:15.5px;line-height:1.85;}
.split-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;}
/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:22px;}
.breadcrumb a{color:var(--text-1);transition:color .18s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--text-2);opacity:.6;}
.breadcrumb strong{font-weight:500;color:var(--text-1);}
/* 标题带 */
.page-band{padding:64px 0 56px;background:
  linear-gradient(120deg,rgba(10,24,36,.96),rgba(7,15,23,.86)),
  repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 72px),
  repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 72px);
  overflow:hidden;}
.band-grid{display:grid;grid-template-columns:1.35fr .85fr;gap:44px;align-items:center;}
.band-copy h1{font-size:42px;margin:16px 0 18px;letter-spacing:.01em;}
.band-copy > p{color:var(--text-1);font-size:16px;line-height:1.85;max-width:640px;}
.city-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.city-chip{display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px;font-size:13px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-1);transition:.18s;}
.city-chip:hover{color:#fff;border-color:var(--primary);background:rgba(240,84,76,.12);}
.city-chip.is-on{color:#150506;background:var(--primary);border-color:var(--primary);font-weight:600;}
.band-media{position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);}
.band-media img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.92;}
.band-media figcaption{position:absolute;left:16px;right:16px;bottom:16px;padding:12px 14px;font-size:13px;line-height:1.6;
  color:var(--text-0);background:rgba(7,15,23,.72);border:1px solid var(--line);border-radius:12px;backdrop-filter:blur(10px);}
.band-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line-weak);}
.stat-chip{display:inline-flex;align-items:baseline;gap:8px;padding:8px 16px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid var(--line);}
.stat-chip b{font-family:var(--serif);font-size:20px;color:var(--text-0);font-variant-numeric:tabular-nums;}
.stat-chip span{font-size:12.5px;color:var(--text-2);}
/* 筛选条 */
.filter-bar{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--r-panel);padding:22px 24px;backdrop-filter:blur(14px);box-shadow:var(--sh-1);}
.filter-row{display:flex;align-items:flex-start;gap:16px;padding:12px 0;border-bottom:1px dashed var(--line-weak);}
.filter-row:last-child{border-bottom:0;padding-bottom:0;}
.filter-row:first-child{padding-top:0;}
.filter-label{flex:0 0 72px;font-size:13px;color:var(--text-2);padding-top:7px;letter-spacing:.06em;}
.chip-group{display:flex;flex-wrap:wrap;gap:9px;flex:1;}
.chip{height:34px;padding:0 15px;font-size:13.5px;border-radius:999px;color:var(--text-1);
  background:rgba(255,255,255,.04);border:1px solid var(--line);transition:.18s;}
.chip:hover{color:#fff;border-color:rgba(240,84,76,.6);background:rgba(240,84,76,.10);}
.chip.is-on{color:#150506;background:var(--primary);border-color:var(--primary);font-weight:600;box-shadow:0 6px 18px rgba(240,84,76,.24);}
.filter-note{margin-top:14px;font-size:13px;color:var(--text-2);}
/* 活动卡 */
.activity-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:32px;}
.activity-card{display:flex;flex-direction:column;background:var(--panel);background-color:var(--panel-solid);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:transform .2s,border-color .2s,box-shadow .2s;}
.activity-card:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.65);box-shadow:var(--sh-2);}
.activity-cover{position:relative;}
.activity-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.activity-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,15,23,.10),rgba(7,15,23,.55));}
.date-badge{position:absolute;left:14px;top:14px;z-index:2;min-width:58px;padding:7px 10px;border-radius:12px;text-align:center;
  background:rgba(7,15,23,.82);border:1px solid rgba(240,84,76,.55);backdrop-filter:blur(10px);}
.date-badge b{display:block;font-family:var(--serif);font-size:19px;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;}
.date-badge span{display:block;font-size:11px;color:var(--text-1);letter-spacing:.08em;}
.seat-badge{position:absolute;right:14px;top:14px;z-index:2;}
.activity-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.activity-meta{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12.5px;color:var(--text-2);}
.activity-meta b{font-weight:500;color:var(--text-1);}
.activity-body h3{font-size:19px;line-height:1.45;}
.activity-body h3 a:hover{color:var(--secondary);}
.activity-body p{font-size:14px;color:var(--text-1);line-height:1.75;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(101,224,194,.10);border:1px solid rgba(101,224,194,.28);color:#9BEBDA;}
.tag.warm{background:rgba(255,143,163,.10);border-color:rgba(255,143,163,.30);color:#FFB6C3;}
.activity-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line-weak);}
.avatars{display:flex;align-items:center;}
.avatars img{width:28px;height:28px;border-radius:50%;object-fit:cover;border:2px solid #102535;margin-left:-8px;}
.avatars img:first-child{margin-left:0;}
.avatars span{margin-left:10px;font-size:12.5px;color:var(--text-2);}
.seat-state{font-size:12.5px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.seat-state::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.list-more{display:flex;justify-content:center;margin-top:36px;}
/* 圈子卡 */
.circle-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.circle-card{background:var(--panel);background-color:var(--panel-solid);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s,border-color .2s;}
.circle-card:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.6);}
.circle-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.circle-body{padding:18px 20px 20px;}
.circle-body h3{font-size:18px;margin-bottom:8px;}
.circle-body p{font-size:14px;color:var(--text-1);line-height:1.7;margin-bottom:14px;}
.circle-stats{display:flex;gap:18px;font-size:12.5px;color:var(--text-2);border-top:1px solid var(--line-weak);padding-top:12px;}
.circle-stats b{font-family:var(--serif);color:var(--text-0);font-size:15px;font-variant-numeric:tabular-nums;margin-right:4px;}
/* 攻略卡 */
.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.guide-card{display:flex;flex-direction:column;background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;transition:transform .2s,border-color .2s,background .2s;}
.guide-card:hover{transform:translateY(-4px);border-color:rgba(240,84,76,.55);background:rgba(255,255,255,.055);}
.guide-card h3{font-size:17.5px;line-height:1.5;margin:14px 0 10px;}
.guide-card h3 a:hover{color:var(--secondary);}
.guide-card p{font-size:14px;color:var(--text-1);line-height:1.75;}
.guide-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:18px;font-size:12.5px;color:var(--text-2);}
/* 问答 */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);overflow:hidden;transition:border-color .2s,background .2s;}
.faq-item[open]{background:rgba(255,255,255,.06);border-color:rgba(240,84,76,.4);}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 20px;font-size:15.5px;font-weight:600;color:var(--text-0);cursor:pointer;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-family:var(--sans);font-size:20px;line-height:1;color:var(--primary);transition:transform .2s;flex:0 0 auto;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-answer{padding:0 20px 18px 20px;font-size:14.5px;line-height:1.85;color:var(--text-1);border-left:2px solid transparent;}
.faq-item[open] .faq-answer{border-left-color:var(--primary);}
.faq-aside{background:var(--panel);background-color:var(--panel-solid);border:1px solid var(--line);border-radius:var(--r-panel);padding:26px;box-shadow:var(--sh-1);}
.faq-aside h3{font-size:20px;margin-bottom:12px;}
.faq-aside p{font-size:14.5px;color:var(--text-1);line-height:1.8;}
.faq-aside ul{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px;}
.faq-aside li{display:flex;gap:10px;font-size:14px;color:var(--text-1);}
.faq-aside li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;border-radius:50%;background:var(--accent);}
/* 数据条 */
.data-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,34,49,.85),rgba(7,15,23,.6)),
  repeating-linear-gradient(90deg,rgba(255,255,255,.03) 0 1px,transparent 1px 60px);}
.data-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));}
.data-cell{padding:12px 26px;border-left:1px solid var(--line-weak);}
.data-cell:first-child{border-left:0;padding-left:0;}
.data-cell b{display:block;font-family:var(--serif);font-size:38px;line-height:1.1;color:var(--text-0);font-variant-numeric:tabular-nums;}
.data-cell span{display:block;margin-top:8px;font-size:13.5px;color:var(--text-2);}
.data-cell i{font-style:normal;font-size:12px;color:var(--accent);letter-spacing:.06em;}
/* CTA */
.cta-banner{position:relative;overflow:hidden;border:1px solid rgba(240,84,76,.38);border-radius:var(--r-panel);
  background:linear-gradient(120deg,rgba(240,84,76,.16),rgba(17,37,54,.75) 52%,rgba(101,224,194,.10));
  box-shadow:var(--sh-2);padding:44px 46px;}
.cta-banner::before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,84,76,.35),transparent 65%);pointer-events:none;}
.cta-inner{position:relative;display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;}
.cta-inner h2{font-size:32px;margin:12px 0 14px;}
.cta-inner p{color:var(--text-1);font-size:15px;line-height:1.8;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-hint{font-size:12.5px;color:var(--text-2);line-height:1.7;margin-top:4px;}
/* 页脚 */
.footer{border-top:1px solid var(--line);background:#060D14;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand b{font-family:var(--serif);font-size:17px;display:block;margin-bottom:12px;color:var(--text-0);}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:300px;}
.footer-col h4{font-family:var(--sans);font-size:14px;font-weight:600;color:var(--text-0);margin-bottom:14px;letter-spacing:.02em;}
.footer-col a{display:block;font-size:13.5px;color:var(--text-2);padding:5px 0;transition:color .18s;}
.footer-col a:hover{color:var(--primary);}
.footer-qr{width:104px;height:104px;border-radius:12px;border:1px dashed var(--line);display:grid;place-items:center;
  text-align:center;font-size:12px;line-height:1.5;color:var(--text-2);background:rgba(255,255,255,.03);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-weak);font-size:12.5px;color:var(--text-2);}
.fb-left{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.fb-left a{color:var(--text-2);transition:color .18s;}
.fb-left a:hover{color:var(--primary);}
/* 响应式 */
@media (max-width:1024px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .logo{min-width:0;}
  .band-grid{grid-template-columns:1fr;}
  .band-copy h1{font-size:34px;}
  .activity-grid{grid-template-columns:1fr;}
  .circle-grid,.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;}
  .data-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .data-cell{padding:16px 22px;}
  .data-cell:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .topbar-mid,.topbar-right{display:none;}
  .topbar .container{justify-content:flex-start;}
  .nav .container{height:60px;gap:12px;}
  .nav-city{display:none;}
  .band-copy h1{font-size:29px;}
  .band-copy > p{font-size:15px;}
  .section-head h2{font-size:26px;}
  .faq-aside{padding:20px;}
  .cta-banner{padding:28px 22px;}
  .cta-inner h2{font-size:25px;}
  .circle-grid,.guide-grid{grid-template-columns:1fr;}
  .data-cell b{font-size:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px;}
  .footer{padding:44px 0 24px;}
  .filter-row{flex-direction:column;gap:8px;}
  .filter-label{flex:none;padding-top:0;}
}
@media (max-width:520px){
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .band-copy h1{font-size:26px;}
  .band-stats{gap:10px;}
  .stat-chip{width:100%;}
  .activity-body{padding:16px 16px 18px;}
  .activity-body h3{font-size:17px;}
  .activity-foot{flex-direction:column;align-items:flex-start;gap:10px;}
  .data-grid{grid-template-columns:1fr;}
  .data-cell{border-left:0;padding:12px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .fb-left{gap:10px;}
}