/* roulang page: index */
:root{
  --brand:#1F5AE0;
  --brand-deep:#143C99;
  --accent:#FF7A2F;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --warn:#E5484D;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --ink-2:#55637A;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --shadow-hover:0 12px 32px rgba(20,60,153,.12);
  --shadow-nav:0 1px 0 #E4E9F2, 0 8px 24px rgba(15,27,45,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:6px}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container-x{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{margin-bottom:40px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--brand);
  background:#EEF4FF;border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.sec-title{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.sec-desc{color:var(--ink-2);font-size:16px;max-width:640px;margin-top:12px}

/* 顶部状态条 */
.statusbar{background:var(--brand-deep);color:#fff;font-size:13px}
.statusbar .inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:38px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.statusbar .inner::-webkit-scrollbar{display:none}
.statusbar .tag{background:rgba(255,255,255,.16);border-radius:999px;padding:2px 10px;font-weight:600}
.statusbar a{border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:1px}
.statusbar a:hover{color:#FFD9BE;border-color:#FFD9BE}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);border-color:transparent}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 4px;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .18s ease}
.nav-link:hover{color:var(--brand)}
.nav-link::after{content:"";position:absolute;left:2px;right:2px;bottom:16px;height:2px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link.active{color:var(--ink);font-weight:700}
.nav-link.active::after{transform:scaleX(1)}
.logo-badge{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
  box-shadow:0 6px 16px rgba(31,90,224,.28);flex:none;
}
.brand:hover .logo-badge{background:var(--brand-deep)}
.count-pill{display:inline-flex;align-items:center;gap:6px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;border-radius:999px;padding:5px 12px;letter-spacing:.02em}
.count-pill .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#F26A1C;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-outline:hover{background:#EEF4FF}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px}
.btn-text svg{transition:transform .18s ease}
.btn-text:hover svg{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card-hover:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDCF7}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.02em;border-radius:999px;padding:4px 11px}
.badge-accent{background:var(--accent-soft);color:#C4551A}
.badge-ok{background:#E7F7F1;color:#0B7A58}
.badge-mute{background:#EEF1F6;color:#6B7788}
.badge-brand{background:#EEF4FF;color:var(--brand)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* Hero */
.hero{position:relative;background:linear-gradient(180deg,#F2F6FF 0%,#F6F8FC 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:72px 0 64px}
.hero h1{font-size:40px;line-height:1.22;font-weight:800;letter-spacing:-.02em}
.hero .sub{font-size:17px;color:var(--ink-2);margin-top:20px;max-width:520px}
.hero-kv{position:relative}
.hero-kv img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);box-shadow:0 18px 46px rgba(20,60,153,.18)}
.float-card{position:absolute;left:-18px;bottom:-22px;background:#fff;border-radius:var(--radius-md);box-shadow:0 12px 32px rgba(15,27,45,.16);padding:14px 16px;width:236px;border:1px solid var(--line)}
.chip-row{position:absolute;right:-8px;top:-16px;display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px;font-weight:600;color:var(--ink-2);box-shadow:0 4px 14px rgba(15,27,45,.08)}
.progress{height:6px;border-radius:999px;background:#EEF1F6;overflow:hidden;margin-top:8px}
.progress span{display:block;height:100%;border-radius:999px;background:var(--accent)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:26px 20px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat b{display:block;font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
.stat span{font-size:14px;color:var(--ink-2)}

/* 非对称亮点 */
.hl-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.hl-main{display:grid;grid-template-columns:1fr 1fr;gap:0;overflow:hidden;padding:0}
.hl-main .txt{padding:34px}
.hl-main img{height:100%;min-height:280px;object-fit:cover}
.hl-side{display:grid;gap:24px}
.hl-side .card{padding:26px}
.icon-box{width:44px;height:44px;border-radius:12px;background:#EEF4FF;color:var(--brand);display:flex;align-items:center;justify-content:center;margin-bottom:16px}

/* 时间线 */
.timeline{position:relative;padding:8px 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--line);transform:translateX(-50%)}
.tl-item{position:relative;width:50%;padding-right:52px;margin-bottom:28px}
.tl-item:nth-child(even){margin-left:50%;padding-right:0;padding-left:52px}
.tl-item .tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-card);padding:20px 22px;transition:transform .2s ease,box-shadow .2s ease}
.tl-item .tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.tl-dot{position:absolute;top:26px;right:-8px;width:14px;height:14px;border-radius:50%;background:#fff;border:2px solid #C6D3EE}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-8px}
.tl-item.is-now .tl-dot{width:18px;height:18px;border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 5px rgba(255,122,47,.2);right:-10px;top:24px}
.tl-item:nth-child(even).is-now .tl-dot{left:-10px;right:auto}
.tl-time{font-size:14px;font-weight:700;color:var(--brand)}

/* 阵容 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.person img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.person .body{padding:18px 20px}

/* 通道对比 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{display:flex;flex-direction:column;padding:30px 26px;position:relative}
.plan.reco{border:2px solid var(--accent);transform:translateY(-8px);box-shadow:0 18px 40px rgba(255,122,47,.16)}
.plan .price{font-size:38px;font-weight:800;letter-spacing:-.03em;margin:16px 0 4px}
.plan ul{margin-top:20px;display:grid;gap:11px}
.plan li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start}
.plan li.off{color:var(--ink-3)}
.plan .btn{margin-top:26px;width:100%}
.tick{flex:none;width:18px;height:18px;border-radius:50%;background:#E7F7F1;color:var(--ok);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;margin-top:3px}
.tick.no{background:#EEF1F6;color:var(--ink-3)}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px}
.news-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-lg) var(--radius-lg) 0 0}
.news-side{display:grid;gap:24px}
.news-mini{display:grid;grid-template-columns:132px 1fr;gap:16px;padding:14px}
.news-mini img{width:100%;height:100%;min-height:96px;object-fit:cover;border-radius:var(--radius-md)}
.empty-state{padding:44px 26px;text-align:center;border-radius:var(--radius-lg);background:#fff;border:1px dashed #CFDCF7;box-shadow:var(--shadow-card)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-card);margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink)}
.faq-q:hover{color:var(--brand)}
.faq-sign{flex:none;width:26px;height:26px;border-radius:50%;background:#EEF4FF;color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .24s ease,background .2s ease}
.faq-item.open .faq-sign{transform:rotate(45deg);background:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a .inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);border-top:1px solid var(--line);padding-top:16px}

/* 表单 */
.form-card{padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field .req{color:var(--accent)}
.input{width:100%;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;padding:0 14px;font-size:15px;transition:border-color .18s ease,box-shadow .18s ease}
.input::placeholder{color:#A9B2C2}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,224,.14)}
.input.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(229,72,77,.12)}
.err{display:none;font-size:13px;color:var(--warn);margin-top:6px}
.err.show{display:block}
.os-row{display:flex;gap:12px}
.os-chip{position:relative;flex:1}
.os-chip input{position:absolute;opacity:0;width:0;height:0}
.os-chip span{display:flex;align-items:center;justify-content:center;height:46px;border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;font-size:15px;font-weight:600;color:var(--ink-2);cursor:pointer;transition:all .18s ease}
.os-chip span:hover{border-color:#B9C9EC}
.os-chip input:checked+span{border-color:var(--accent);background:var(--accent-soft);color:#C4551A}
.code-row{display:grid;grid-template-columns:1fr auto;gap:12px}
.code-btn{height:44px;padding:0 18px;border-radius:var(--radius-btn);border:1px solid var(--brand);color:var(--brand);background:#fff;font-weight:600;font-size:14px;transition:background .18s ease}
.code-btn:hover{background:#EEF4FF}
.code-btn[disabled]{opacity:.5;cursor:not-allowed}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2)}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand);flex:none}
.success-card{background:#E7F7F1;border:1px solid #B9E6D5;border-radius:var(--radius-md);padding:28px;text-align:center}

/* CTA 区块 */
.cta-band{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--brand-deep)}
.cta-band .bgimg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.22}
.cta-band .inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:56px 48px;color:#fff}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:#fff;margin-top:24px}
.site-footer a{color:rgba(255,255,255,.78);font-size:14px;transition:color .18s ease}
.site-footer a:hover{color:var(--accent)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 44px}
.foot-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:16px}
.foot-list{display:grid;gap:10px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.16);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.68)}
.qr{width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.1);border:1px dashed rgba(255,255,255,.35);display:flex;align-items:center;justify-content:center;font-size:12px;color:rgba(255,255,255,.7);text-align:center;line-height:1.5}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;z-index:80;background:#fff;transform:translateX(100%);transition:transform .2s ease;display:flex;flex-direction:column}
.drawer.open{transform:translateX(0)}
.drawer nav{padding:18px 24px;display:grid;gap:4px;overflow-y:auto;flex:1}
.drawer nav a{padding:14px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line);display:block}
.drawer nav a.active{color:var(--brand)}
.drawer-foot{padding:18px 24px;border-top:1px solid var(--line)}

@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:48px 0}
  .hero h1{font-size:32px}
  .hl-grid{grid-template-columns:1fr}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .plan.reco{transform:none;order:-1}
  .news-grid{grid-template-columns:1fr}
  .cta-band .inner{grid-template-columns:1fr;padding:40px 28px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:640px){
  .container-x{padding:0 20px}
  .section{padding:56px 0}
  .sec-title{font-size:22px}
  .hero h1{font-size:28px}
  .hero .sub{font-size:16px}
  .stat-row{grid-template-columns:1fr 1fr}
  .stat{border-left:0;border-top:1px solid var(--line);padding:18px 4px}
  .stat b{font-size:24px}
  .hl-main{grid-template-columns:1fr}
  .hl-main img{min-height:200px}
  .timeline::before{left:7px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding-left:32px;padding-right:0}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:0;right:auto;top:24px}
  .tl-item.is-now .tl-dot,.tl-item:nth-child(even).is-now .tl-dot{left:-2px;right:auto;top:22px}
  .grid-4{grid-template-columns:1fr 1fr;gap:16px}
  .news-mini{grid-template-columns:1fr}
  .news-mini img{min-height:150px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .float-card{position:static;width:100%;margin-top:14px}
  .chip-row{position:static;justify-content:flex-start;margin-bottom:12px}
}

/* roulang page: article */
:root{
  --brand:#1F5AE0;
  --brand-deep:#143C99;
  --accent:#FF7A2F;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --warn:#E5484D;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --ink-2:#55637A;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --r-lg:16px;
  --r-sm:12px;
  --r-ctl:10px;
  --sh-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --sh-hover:0 12px 32px rgba(20,60,153,.12);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
::selection{background:rgba(31,90,224,.16);}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部进度与滚动条 ---------- */
#readProgress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:80;transition:width .12s linear;}
body::-webkit-scrollbar{width:10px;height:10px;}
body::-webkit-scrollbar-thumb{background:#C9D3E4;border-radius:999px;}
body::-webkit-scrollbar-track{background:#EDF1F8;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 1px 0 var(--line),0 8px 24px rgba(15,27,45,.06);}
.logo-badge{width:38px;height:38px;border-radius:var(--r-ctl);background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;flex:0 0 auto;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:4px 0;transition:color .18s ease;}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;border-radius:2px;background:var(--accent);}
.count-pill{align-items:center;gap:6px;background:var(--accent-soft);color:#C2410C;font-size:12px;font-weight:600;letter-spacing:.02em;padding:6px 12px;border-radius:999px;}
.count-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulseDot 1.6s ease-in-out infinite;}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}

/* ---------- 按钮 ---------- */
:where(.btn){display:inline-flex;align-items:center;justify-content:center;gap:8px;}
.btn{height:44px;padding:0 22px;border-radius:var(--r-ctl);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,122,47,.22);}
.btn-primary:hover{background:#F26A1B;transform:translateY(-1px);box-shadow:var(--sh-hover);}
.btn-primary:active{transform:translateY(0);filter:saturate(.92);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7D7F7;}
.btn-ghost:hover{background:#EEF4FF;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-white{background:#fff;color:var(--brand-deep);border-color:#fff;}
.btn-white:hover{background:#EEF4FF;transform:translateY(-1px);}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-line-light:hover{background:rgba(255,255,255,.12);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
:focus-visible{outline:3px solid rgba(255,122,47,.4);outline-offset:2px;border-radius:10px;}

/* ---------- 文章头 ---------- */
.art-hero{position:relative;background-color:#143C99;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#fff;padding:40px 0 56px;}
.art-hero::after{content:"";position:absolute;inset:0;background:rgba(15,27,45,.66);}
.art-hero .container-x{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);}
.breadcrumb a{color:rgba(255,255,255,.78);transition:color .18s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.42);}
.breadcrumb .cur{color:#fff;}
.cat-badge{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;background:var(--accent-soft);color:#C2410C;font-size:12px;font-weight:700;letter-spacing:.02em;}
.art-title{font-size:38px;line-height:1.3;font-weight:800;color:#fff;margin:18px 0 20px;max-width:920px;}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.8);}
.art-meta .sep{color:rgba(255,255,255,.4);}
.art-meta em{font-style:normal;color:#fff;font-weight:600;}

/* ---------- 布局 ---------- */
.art-body-sec{padding:56px 0 8px;}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;}
.art-main{min-width:0;max-width:800px;}
.art-side{position:sticky;top:100px;display:grid;gap:20px;}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);padding:20px;}
.side-title{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.side-title::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--brand);}
.toc-list{list-style:none;margin:0;padding:0;border-left:2px solid var(--line);display:grid;gap:2px;}
.toc-list a{display:block;font-size:14px;line-height:1.6;color:var(--ink-2);padding:8px 12px;margin-left:-2px;border-left:2px solid transparent;transition:color .16s ease,background .16s ease,border-color .16s ease;}
.toc-list a:hover{color:var(--brand);background:#F6F9FF;}
.toc-list a.active{color:var(--brand);font-weight:600;border-left-color:var(--accent);background:#F6F9FF;}
.side-links{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
.side-links a{display:flex;align-items:flex-start;gap:8px;font-size:14px;line-height:1.6;color:var(--ink-2);transition:color .16s ease;}
.side-links a:hover{color:var(--brand);}
.side-links .arrow{margin-top:3px;color:var(--accent);flex:0 0 auto;}
.side-cta{background:var(--accent-soft);border:1px solid #FFD9BE;border-radius:var(--r-lg);padding:20px;}
.side-cta h3{margin:0 0 8px;font-size:16px;font-weight:700;color:#8A3A0C;}
.side-cta p{margin:0 0 16px;font-size:13px;line-height:1.7;color:#9A4A16;}

/* ---------- 正文排版 ---------- */
.article-body{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);padding:40px 44px;font-size:17px;line-height:1.9;color:var(--ink);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--ink);margin:40px 0 16px;padding-left:16px;scroll-margin-top:100px;}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--brand);}
.article-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);margin:28px 0 12px;scroll-margin-top:100px;}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-body ul{list-style:none;margin:0 0 20px;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.85;}
.article-body ul li::before{content:"";position:absolute;left:3px;top:13px;width:7px;height:7px;border-radius:50%;background:var(--brand);}
.article-body ol{list-style:none;counter-reset:artol;margin:0 0 20px;padding:0;}
.article-body ol li{counter-increment:artol;position:relative;padding-left:30px;margin-bottom:10px;line-height:1.85;}
.article-body ol li::before{content:counter(artol);position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:6px;background:#EEF4FF;color:var(--brand);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;line-height:1;}
.article-body blockquote{margin:24px 0;background:#F1F6FF;border-left:4px solid var(--accent);border-radius:0 12px 12px 0;padding:16px 20px;font-size:16px;color:var(--ink-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand);border-bottom:1px solid #C7D7F7;transition:border-color .18s ease,color .18s ease;}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body img{border-radius:var(--r-sm);margin:24px auto;}
.article-body strong{font-weight:700;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.article-body code{background:#F1F4FA;border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:15px;}
.table-wrap{overflow-x:auto;margin:24px 0;-webkit-overflow-scrolling:touch;}
.table-wrap table{margin:0;min-width:520px;}
.article-body table{width:100%;border-collapse:collapse;border-radius:var(--r-sm);overflow:hidden;font-size:15px;}
.article-body th{background:#EEF4FF;color:var(--brand-deep);font-weight:600;text-align:left;padding:12px 14px;border:1px solid var(--line);}
.article-body td{padding:12px 14px;border:1px solid var(--line);color:var(--ink-2);}
.article-body tbody tr:nth-child(even){background:#FAFBFE;}
.empty-state{background:var(--card);border:1px dashed #D5DDEB;border-radius:var(--r-lg);padding:64px 32px;text-align:center;display:grid;justify-items:center;gap:14px;box-shadow:var(--sh-card);}
.empty-state h2{font-size:22px;font-weight:700;margin:0;color:var(--ink);}
.empty-state p{margin:0;font-size:15px;color:var(--ink-2);max-width:440px;}

/* ---------- 标签与分享 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:28px;border-top:1px solid var(--line);}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#F1F6FF;color:#2A4C9E;font-size:13px;transition:background .18s ease,color .18s ease;}
.tag:hover{background:var(--brand);color:#fff;}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:24px;font-size:14px;color:var(--ink-3);}
.share-btn{width:38px;height:38px;border-radius:var(--r-ctl);border:1px solid var(--line);background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .18s ease;}
.share-btn:hover{color:var(--brand);border-color:#C7D7F7;background:#F1F6FF;transform:translateY(-1px);}
.share-btn.done{color:var(--ok);border-color:#B7E6D5;background:#EAF9F3;}

/* ---------- 上下篇 ---------- */
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px;}
.pn-card{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--sh-card);transition:all .2s ease;}
.pn-card:hover{border-color:#C7D7F7;box-shadow:var(--sh-hover);transform:translateY(-2px);}
.pn-label{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink-3);}
.pn-title{font-size:15px;font-weight:600;line-height:1.55;color:var(--ink);}
.pn-card:hover .pn-title{color:var(--brand);}
.pn-right{align-items:flex-end;text-align:right;}

/* ---------- 相关推荐 ---------- */
.rel-sec{padding:64px 0 0;}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.sec-head h2{margin:0;font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);}
.sec-head p{margin:8px 0 0;font-size:15px;color:var(--ink-2);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);transition:gap .18s ease,color .18s ease;}
.text-link:hover{gap:10px;color:#143C99;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D5E0F5;}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EEF2F9;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-cat{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:rgba(255,255,255,.94);color:var(--brand-deep);font-size:12px;font-weight:600;}
.news-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1;}
.news-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease;}
.news-card:hover .news-title{color:var(--brand);}
.news-desc{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.back-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:36px;}

/* ---------- CTA ---------- */
.cta-sec{padding:72px 0 0;}
.cta-band{position:relative;overflow:hidden;border-radius:20px;background-color:var(--brand-deep);background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;color:#fff;padding:52px;}
.cta-band::after{content:"";position:absolute;inset:0;background:rgba(20,60,153,.86);}
.cta-band > *{position:relative;z-index:1;}
.cta-grid{display:grid;grid-template-columns:1.5fr auto;gap:36px;align-items:center;}
.cta-band h2{margin:0 0 14px;font-size:28px;line-height:1.35;font-weight:700;}
.cta-band p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.85);}
.cta-points span{display:inline-flex;align-items:center;gap:7px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:var(--brand-deep);color:#fff;padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.14);}
.foot-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px;}
.foot-list{list-style:none;margin:0;padding:0;}
.foot-list li{margin-bottom:10px;}
.foot-list a{font-size:14px;color:rgba(255,255,255,.75);transition:color .18s ease;}
.foot-list a:hover{color:var(--accent);}
.foot-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;padding:22px 0;font-size:13px;color:rgba(255,255,255,.62);}
.qr{width:112px;height:112px;border-radius:var(--r-sm);background:rgba(255,255,255,.1);border:1px dashed rgba(255,255,255,.36);display:flex;align-items:center;justify-content:center;text-align:center;padding:10px;font-size:12px;line-height:1.5;color:rgba(255,255,255,.72);}

/* ---------- 移动导航抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:90;background:#fff;transform:translateX(100%);transition:transform .2s ease;display:flex;flex-direction:column;padding:20px 24px 28px;overflow-y:auto;}
.mobile-drawer.open{transform:translateX(0);}
.drawer-link{display:block;padding:14px 4px;font-size:16px;font-weight:500;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color .18s ease;}
.drawer-link:hover,.drawer-link.active{color:var(--brand);font-weight:600;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .art-layout{grid-template-columns:1fr;gap:40px;}
  .art-side{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .art-main{max-width:none;}
}
@media (max-width:1023px){
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .art-hero{padding:28px 0 40px;}
  .art-title{font-size:28px;}
  .article-body{padding:26px 20px;font-size:16.5px;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .sec-head h2{font-size:23px;}
  .cta-band{padding:34px 24px;}
  .cta-band h2{font-size:23px;}
  .rel-sec{padding:48px 0 0;}
  .cta-sec{padding:52px 0 0;}
}
@media (max-width:640px){
  .container-x{padding-left:20px;padding-right:20px;}
  .art-side{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;gap:16px;}
  .pn-grid{grid-template-columns:1fr;}
  .pn-right{align-items:flex-start;text-align:left;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .art-meta{font-size:13px;gap:8px;}
  .cta-actions .btn{width:100%;}
  .cta-actions{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#1F5AE0;
  --brand-deep:#143C99;
  --brand-soft:#EEF4FF;
  --accent:#FF7A2F;
  --accent-hover:#F26A1B;
  --accent-soft:#FFF3EA;
  --success:#12A87A;
  --success-soft:#E7F7F1;
  --danger:#E5484D;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --ink-2:#55637A;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --sh-hover:0 12px 32px rgba(20,60,153,.12);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
figure{margin:0;}
[id]{scroll-margin-top:96px;}
:focus-visible{outline:3px solid rgba(255,122,47,.5);outline-offset:2px;border-radius:8px;}

/* ============ 容器 ============ */
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 1px 0 #E4E9F2,0 8px 24px rgba(15,27,45,.06);}
.brand{transition:opacity .2s;}
.brand:hover{opacity:.86;}
.logo-badge{
  width:36px;height:36px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--brand);color:#fff;
  font-size:18px;font-weight:800;letter-spacing:0;
  box-shadow:0 6px 16px rgba(31,90,224,.24);
}
.nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 2px;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--ink);}
.nav-link.active::after{transform:scaleX(1);}
.count-pill{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;border-radius:999px;
  background:var(--accent-soft);color:#C9531A;
  font-size:12px;font-weight:700;letter-spacing:.02em;
  white-space:nowrap;
}
.count-pill .dot{
  width:6px;height:6px;border-radius:50%;background:var(--accent);
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.8);}}

/* 移动端抽屉 */
.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
  background:#fff;padding:20px 20px 32px;
  display:flex;flex-direction:column;gap:4px;
  opacity:0;transform:translateY(-14px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
  overflow-y:auto;
  border-top:1px solid var(--line);
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer-link{
  display:block;padding:14px 12px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--ink-2);
  transition:background .18s,color .18s;
}
.drawer-link:hover,.drawer-link.active{background:var(--brand-soft);color:var(--brand);}
@media(min-width:1024px){.mobile-drawer{display:none;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;background:transparent;color:var(--ink);
  white-space:nowrap;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.26);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--sh-hover);}
.btn-primary:active{transform:translateY(0);background:#E86114;}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-white{background:#fff;color:var(--brand-deep);}
.btn-white:hover{background:#EFF3FF;transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,0,0,.18);}
.btn-line{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-line:hover{background:rgba(255,255,255,.12);transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:15px;font-weight:600;padding:0;height:auto;
  transition:color .18s;
}
.btn-link svg{transition:transform .22s ease;}
.btn-link:hover{color:var(--brand-deep);}
.btn-link:hover svg{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;line-height:1.4;
}
.badge-accent{background:var(--accent-soft);color:#C9531A;}
.badge-green{background:var(--success-soft);color:#0B7D5A;}
.badge-gray{background:#EEF1F6;color:var(--ink-3);}
.badge-blue{background:var(--brand-soft);color:var(--brand);}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:22px;flex-wrap:wrap;
}
.crumb a{transition:color .18s;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C6CEDC;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  background:#fff;border-bottom:1px solid var(--line);
  padding:40px 0 56px;
}
.cat-hero::before{
  content:"";position:absolute;top:-120px;left:-140px;
  width:380px;height:380px;border-radius:50%;
  background:rgba(31,90,224,.05);pointer-events:none;
}
.cat-hero::after{
  content:"";position:absolute;bottom:-150px;right:8%;
  width:260px;height:260px;border-radius:50%;
  background:rgba(255,122,47,.05);pointer-events:none;
}
.hero-title{
  font-size:40px;line-height:1.22;font-weight:800;letter-spacing:-.01em;
  color:var(--ink);margin:18px 0 18px;
}
.hero-lead{
  font-size:17px;line-height:1.8;color:var(--ink-2);max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-card);border:1px solid var(--line);}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-float{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 16px;display:grid;gap:4px;
  box-shadow:0 8px 24px rgba(15,27,45,.12);
  backdrop-filter:blur(4px);
}
.hero-float strong{font-size:15px;font-weight:700;color:var(--ink);}
.hero-float span{font-size:13px;color:var(--ink-3);}
.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:22px 16px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--line);
}
.stat-strip b{
  display:block;font-size:26px;font-weight:800;line-height:1.2;
  font-variant-numeric:tabular-nums;color:var(--ink);letter-spacing:-.02em;
}
.stat-strip span{font-size:13px;color:var(--ink-3);}

/* ============ 锚点导航条 ============ */
.anchor-bar{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:20;}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:14px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:none;padding:9px 18px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:all .18s ease;white-space:nowrap;
}
.anchor-pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.anchor-pill:active{transform:scale(.97);}

/* ============ 板块通用 ============ */
.section{padding:80px 0;}
.section-tint{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{margin-bottom:40px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent);}
.sec-title{font-size:30px;line-height:1.32;font-weight:700;color:var(--ink);}
.sec-desc{margin-top:12px;font-size:16px;line-height:1.8;color:var(--ink-2);}

/* ============ 图文交替 ============ */
.zig{display:grid;gap:32px;align-items:center;}
.zig + .zig{margin-top:72px;}
.zig-media{position:relative;}
.media-frame{
  border-radius:var(--r-lg);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-card);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease;}
.media-frame:hover img{transform:scale(1.03);}
.media-tag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand);
  border-radius:999px;padding:6px 14px;font-size:12px;font-weight:700;
  box-shadow:0 4px 12px rgba(15,27,45,.1);
}
.zig-text h3{font-size:20px;line-height:1.4;font-weight:700;color:var(--ink);}
.zig-text p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);}
.pt-list{display:grid;gap:10px;margin-top:20px;}
.pt-list li{
  position:relative;padding-left:20px;
  font-size:15px;line-height:1.7;color:var(--ink-2);
}
.pt-list li::before{
  content:"";position:absolute;left:0;top:9px;
  width:7px;height:7px;border-radius:50%;background:var(--brand);
}

/* ============ 步骤条 ============ */
.steps{display:grid;gap:18px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(31,90,224,.28);}
.step-num{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.step p{font-size:15px;line-height:1.8;color:var(--ink-2);}
.step-meta{
  margin-top:16px;display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:4px 12px;
}

/* ============ 参数 chip 云 ============ */
.chip-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--sh-card);
}
.chip-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);
  box-shadow:0 1px 2px rgba(15,27,45,.04);
  transition:transform .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.chip:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--brand);box-shadow:var(--sh-card);}
.chip b{font-weight:700;color:var(--ink);}
.chip:hover b{color:var(--brand);}
.chip-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(31,90,224,.28);}
.faq-item.open{border-color:rgba(31,90,224,.38);box-shadow:var(--sh-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  transition:transform .26s ease,background .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a p{
  padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-a p + p{padding-top:10px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-deep);color:#fff;
  border-radius:20px;padding:36px 26px;
  box-shadow:0 18px 44px rgba(20,60,153,.2);
  display:grid;gap:28px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;
  width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.06);pointer-events:none;
}
.cta-band h2{font-size:26px;line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.cta-note{margin-top:18px;font-size:13px;color:rgba(255,255,255,.68);}
.dl-box{
  position:relative;z-index:2;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-lg);padding:24px;
  display:grid;gap:14px;
}
.dl-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:14px 16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.94);color:var(--ink);
}
.dl-row strong{display:block;font-size:15px;font-weight:700;}
.dl-row span{display:block;font-size:12px;color:var(--ink-3);}
.dl-btn{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 16px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:13px;font-weight:700;
  transition:background .18s ease,transform .18s ease;
}
.dl-btn:hover{background:var(--accent-hover);transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 28px;}
.foot-grid{display:grid;gap:40px;}
.foot-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.foot-list{display:grid;gap:10px;font-size:14px;}
.foot-list a{color:rgba(255,255,255,.78);transition:color .2s ease,padding-left .2s ease;}
.foot-list a:hover{color:var(--accent);padding-left:3px;}
.qr{
  width:112px;height:112px;border-radius:var(--r-md);
  background:rgba(255,255,255,.1);
  border:1px dashed rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  padding:10px;font-size:12px;line-height:1.5;color:rgba(255,255,255,.72);
}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.66);
}

/* ============ 响应式 ============ */
@media(min-width:640px){
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:44px 36px;}
}
@media(min-width:768px){
  .stat-strip{grid-template-columns:repeat(4,1fr);}
  .stat-strip li{padding-right:16px;border-right:1px solid var(--line);}
  .stat-strip li:last-child{border-right:0;padding-right:0;}
  .foot-grid{grid-template-columns:repeat(2,1fr);}
}
@media(min-width:1024px){
  .zig{grid-template-columns:1fr 1fr;gap:64px;}
  .zig.reverse .zig-media{order:2;}
  .steps{grid-template-columns:repeat(4,1fr);gap:24px;}
  .step:not(:last-child)::after{
    content:"";position:absolute;top:46px;right:-24px;
    width:24px;height:2px;background:var(--line);
  }
  .cta-band{grid-template-columns:1.15fr .85fr;align-items:center;padding:52px 56px;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;}
}
@media(max-width:1023px){
  .section{padding:56px 0;}
  .cat-hero{padding:30px 0 44px;}
  .hero-title{font-size:30px;}
  .sec-title{font-size:23px;}
  .zig + .zig{margin-top:52px;}
}
@media(max-width:639px){
  .container-x{padding:0 20px;}
  .hero-title{font-size:27px;line-height:1.28;}
  .hero-lead{font-size:15.5px;}
  .sec-title{font-size:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .cta-band h2{font-size:22px;}
  .chip-panel{padding:24px 20px;}
  .stat-strip b{font-size:22px;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
    --brand:#1F5AE0;
    --brand-deep:#143C99;
    --accent:#FF7A2F;
    --accent-soft:#FFF3EA;
    --ok:#12A87A;
    --warn:#E5484D;
    --bg:#F6F8FC;
    --card:#FFFFFF;
    --ink:#0F1B2D;
    --ink-2:#55637A;
    --ink-3:#8A94A6;
    --line:#E4E9F2;
    --soft-blue:#EEF4FF;
    --r-lg:16px;
    --r-md:12px;
    --r-sm:10px;
    --shadow-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
    --shadow-hover:0 12px 32px rgba(20,60,153,.12);
    --nav-h:72px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .18s ease;}
  button,input{font-family:inherit;}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  ::selection{background:rgba(255,122,47,.24);}

  .container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  .text-ink{color:var(--ink);}
  .text-ink2{color:var(--ink-2);}
  .text-brand{color:var(--brand);}
  .border-line{border-color:var(--line);}
  .tabular{font-variant-numeric:tabular-nums;}

  /* ---------- 基础排版 ---------- */
  .h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
  .h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--ink);}
  .h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--ink);}
  .lead{font-size:16px;line-height:1.75;color:var(--ink-2);}
  .meta-text{font-size:14px;line-height:1.6;color:var(--ink-3);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 12px;border-radius:999px;background:var(--soft-blue);
    font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  }
  .sec{padding:88px 0;}
  .sec-tight{padding:64px 0;}
  .section-head{max-width:720px;margin-bottom:40px;}
  .section-head .h2{margin-top:14px;}

  /* ---------- 顶栏 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 1px 0 var(--line),0 8px 24px rgba(15,27,45,.06);}
  .site-header > div{height:72px;}
  @media(max-width:1023px){.site-header > div{height:60px !important;}}

  .brand:hover .logo-badge{transform:translateY(-1px);}
  .logo-badge{
    width:38px;height:38px;flex:0 0 38px;border-radius:12px;
    background:var(--brand);color:#fff;
    display:flex;align-items:center;justify-content:center;
    font-size:18px;font-weight:800;
    transition:transform .2s ease;
  }
  .nav-link{
    position:relative;padding:6px 0;
    font-size:15px;font-weight:600;color:var(--ink-2);
    transition:color .18s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link.active{color:var(--ink);}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
    background:var(--accent);border-radius:2px;
  }
  .count-pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 12px;border-radius:999px;
    background:var(--accent);color:#fff;
    font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .count-pill .dot{width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-sm);
    font-size:15px;font-weight:600;cursor:pointer;
    border:1px solid transparent;
    transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--accent);color:#fff;}
  .btn-primary:hover{background:#F06A1E;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
  .btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
  .btn-outline:hover{background:var(--soft-blue);transform:translateY(-1px);}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
  .btn:active{transform:translateY(0);}
  .btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,122,47,.35);}
  .btn-block{width:100%;}

  .arrow-link{
    display:inline-flex;align-items:center;gap:8px;
    font-size:15px;font-weight:600;color:var(--brand);
  }
  .arrow-link svg{transition:transform .2s ease;}
  .arrow-link:hover svg{transform:translateX(4px);}

  /* ---------- 移动端抽屉 ---------- */
  .drawer{
    position:fixed;left:0;right:0;top:60px;bottom:0;z-index:55;
    background:#fff;overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  }
  .drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:15px 4px;font-size:16px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.active{color:var(--brand);}

  /* ---------- 面包屑 ---------- */
  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
  .crumbs a:hover{color:var(--brand);}

  /* ---------- Hero ---------- */
  .page-hero{padding:56px 0 52px;background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FC 100%);border-bottom:1px solid var(--line);}
  .hero-title{margin:18px 0 16px;}
  .hero-img{
    width:100%;aspect-ratio:16/10;object-fit:cover;
    border-radius:var(--r-lg);box-shadow:var(--shadow-card);
    border:1px solid var(--line);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-note{
    display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
    padding-top:22px;border-top:1px solid var(--line);
    font-size:14px;color:var(--ink-2);
  }
  .hero-note span{display:inline-flex;align-items:center;gap:7px;}
  .dot-ok{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;}

  /* ---------- 锚点条 ---------- */
  .anchor-wrap{position:sticky;top:72px;z-index:40;background:rgba(246,248,252,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);}
  @media(max-width:1023px){.anchor-wrap{top:60px;}}
  .anchor-track{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
  .anchor-track::-webkit-scrollbar{display:none;}
  .anchor-pill{
    flex:0 0 auto;padding:9px 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);
    font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
    transition:.18s ease;
  }
  .anchor-pill:hover{border-color:var(--brand);color:var(--brand);background:var(--soft-blue);}

  /* ---------- 场景卡 ---------- */
  .scene-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--shadow-card);
    transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    display:flex;flex-direction:column;
  }
  .scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFDCF5;}
  .scene-card:hover .scene-title{color:var(--brand);}
  .scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .scene-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
  .scene-title{font-size:19px;font-weight:700;color:var(--ink);transition:color .2s ease;}
  .scene-desc{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);}
  .scene-foot{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;}

  /* ---------- 引述 ---------- */
  .quote-block{
    background:var(--soft-blue);border-left:4px solid var(--accent);
    border-radius:0 var(--r-md) var(--r-md) 0;
    padding:22px 24px;
  }
  .quote-text{font-size:16px;line-height:1.85;color:var(--ink);}
  .quote-from{margin-top:12px;font-size:13px;color:var(--ink-2);}

  .tag-chip{
    display:inline-flex;align-items:center;
    padding:8px 16px;border-radius:999px;
    background:#fff;border:1px solid var(--line);
    font-size:13px;color:var(--ink-2);
    transition:.18s ease;
  }
  .tag-chip:hover{border-color:var(--brand);color:var(--brand);background:var(--soft-blue);}

  .stat-strip{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-card);
    display:grid;grid-template-columns:repeat(3,1fr);
  }
  .stat-cell{padding:24px 26px;border-right:1px solid var(--line);}
  .stat-cell:last-child{border-right:none;}
  .stat-num{font-size:28px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
  .stat-label{margin-top:6px;font-size:14px;color:var(--ink-2);}
  @media(max-width:767px){
    .stat-strip{grid-template-columns:1fr;}
    .stat-cell{border-right:none;border-bottom:1px solid var(--line);}
    .stat-cell:last-child{border-bottom:none;}
  }

  /* ---------- 适合 / 不适合 ---------- */
  .fit-col{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:28px 26px;box-shadow:var(--shadow-card);height:100%;
  }
  .fit-head{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);}
  .fit-badge{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex:0 0 26px;}
  .fit-list{margin-top:18px;}
  .fit-item{display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;line-height:1.7;color:var(--ink-2);}
  .fit-item:last-child{border-bottom:none;}
  .fit-item svg{flex:0 0 18px;margin-top:4px;}

  /* ---------- CTA 与表单 ---------- */
  .cta-band{background:var(--soft-blue);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .promise{display:flex;gap:11px;align-items:flex-start;padding:12px 0;font-size:15px;line-height:1.7;color:var(--ink-2);}
  .promise svg{flex:0 0 20px;margin-top:3px;}
  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:28px 26px;box-shadow:var(--shadow-card);
  }
  .field-label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:8px;}
  .field-label .req{color:var(--accent);margin-left:2px;}
  .input{
    width:100%;height:44px;padding:0 14px;font-size:15px;color:var(--ink);
    background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .input::placeholder{color:var(--ink-3);}
  .input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,90,224,.15);}
  .input.error{border-color:var(--warn);}
  .err-text{margin-top:6px;font-size:13px;color:var(--warn);display:none;}
  .err-text.show{display:block;}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;}
  .chip-radio{
    padding:9px 20px;border-radius:999px;background:#fff;
    border:1px solid var(--line);font-size:14px;color:var(--ink-2);
    cursor:pointer;transition:.18s ease;
  }
  .chip-radio:hover{border-color:#C7D6F3;color:var(--brand);}
  .chip-radio.active{border-color:var(--accent);background:var(--accent-soft);color:#C4520F;font-weight:600;}
  .form-success{
    background:#F1FBF7;border:1px solid #C6EBDE;border-radius:var(--r-md);
    padding:22px;display:none;
  }
  .form-success.show{display:block;}
  .contact-line{display:flex;gap:10px;font-size:14px;color:var(--ink-2);padding:6px 0;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:0;}
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
  .foot-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
  .foot-list li{margin-bottom:4px;}
  .foot-list a{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
  .foot-list a:hover{color:var(--accent);}
  .qr{
    width:120px;height:120px;border-radius:var(--r-md);
    border:1px dashed rgba(255,255,255,.35);
    display:flex;align-items:center;justify-content:center;text-align:center;
    padding:10px;font-size:12px;line-height:1.6;color:rgba(255,255,255,.6);
  }
  .foot-bottom{
    margin-top:48px;padding:20px 0;
    border-top:1px solid rgba(255,255,255,.16);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.62);
  }
  @media(max-width:1023px){.foot-grid{grid-template-columns:1fr 1fr;gap:34px;}}
  @media(max-width:639px){
    .foot-grid{grid-template-columns:1fr;gap:30px;}
    .h1{font-size:28px;}
    .h2{font-size:22px;}
    .sec{padding:56px 0;}
    .sec-tight{padding:44px 0;}
    .page-hero{padding:36px 0 40px;}
    .container-x{padding:0 20px;}
  }

/* roulang page: category3 */
:root{
  --brand:#1F5AE0;
  --brand-deep:#143C99;
  --brand-soft:#EEF4FF;
  --accent:#FF7A2F;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --ok-soft:#E9F8F2;
  --warn:#E5484D;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --ink-2:#55637A;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --sh-hover:0 12px 32px rgba(20,60,153,.12);
  --sh-nav:0 1px 0 #E4E9F2, 0 8px 24px rgba(15,27,45,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;letter-spacing:.02em}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:640px){.container-x{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-nav)}
.brand{text-decoration:none}
.logo-badge{
  width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
  flex:0 0 auto;
}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);
  text-decoration:none;padding:10px 0;transition:color .2s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--ink)}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);border-radius:2px;
}
.count-pill{
  align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.count-pill .dot{
  width:7px;height:7px;border-radius:50%;background:#fff;display:inline-block;
  animation:pulse 1.8s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}

/* mobile drawer */
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;z-index:55;
  padding:20px;opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;overflow-y:auto;
}
.mobile-drawer.open{opacity:1;transform:translateY(0);pointer-events:auto}
.mobile-drawer a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--ink-2);
  text-decoration:none;border-bottom:1px solid var(--line);
}
.mobile-drawer a.is-active{color:var(--brand)}
.mobile-drawer .btn{width:100%;margin-top:20px}
@media (min-width:1024px){
  .mobile-drawer{display:none}
}
@media (min-width:640px){
  .mobile-drawer{top:72px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;text-decoration:none;cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,122,47,.22)}
.btn-primary:hover{background:#F06A1E;transform:translateY(-1px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0);background:#E4641C}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C9D8F7}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-dark:hover{background:rgba(255,255,255,.22)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-size:15px;font-weight:600;text-decoration:none;transition:color .2s ease;
}
.btn-text svg{transition:transform .2s ease}
.btn-text:hover svg{transform:translateX(4px)}
.btn-text:hover{color:var(--brand-deep)}
:focus-visible{outline:3px solid rgba(255,122,47,.45);outline-offset:2px;border-radius:6px}

/* ---------- layout ---------- */
.section{padding:88px 0}
.section-tight{padding:56px 0}
@media (max-width:1023px){.section{padding:64px 0}.section-tight{padding:44px 0}}
@media (max-width:640px){.section{padding:56px 0}.section-tight{padding:36px 0}}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.02em;color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.sec-title{font-size:30px;line-height:1.3;font-weight:700;margin:0 0 12px;letter-spacing:-.01em}
.sec-desc{margin:0;font-size:16px;color:var(--ink-2)}
@media (max-width:640px){
  .sec-title{font-size:22px}
  .sec-desc{font-size:15px}
}

/* ---------- hero ---------- */
.cat-hero{background:#EDF3FF;padding:52px 0 56px;border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
@media (max-width:900px){
  .cat-hero{padding:36px 0 44px}
  .hero-inner{grid-template-columns:1fr;gap:28px}
}
.crumbs{font-size:13px;color:var(--ink-3);margin-bottom:16px;display:flex;gap:8px;align-items:center}
.crumbs a{color:var(--ink-3);text-decoration:none;transition:color .2s ease}
.crumbs a:hover{color:var(--brand)}
.cat-hero h1{
  font-size:36px;line-height:1.25;font-weight:800;letter-spacing:-.015em;
  margin:14px 0 16px;color:var(--ink);
}
@media (max-width:1023px){.cat-hero h1{font-size:30px}}
@media (max-width:640px){.cat-hero h1{font-size:26px}}
.hero-sub{font-size:16px;color:var(--ink-2);margin:0 0 26px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-card);border:1px solid rgba(255,255,255,.7);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-accent{background:var(--accent-soft);color:#C8481A}
.badge-ok{background:var(--ok-soft);color:#0B7A58}
.badge-grey{background:#EFF2F7;color:var(--ink-2)}

/* ---------- anchor pills ---------- */
.anchor-bar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:60px;z-index:45}
@media (min-width:640px){.anchor-bar{top:72px}}
.anchor-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:12px 0;
  scrollbar-width:none;-ms-overflow-style:none;
}
.anchor-scroll::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;background:#F2F5FB;color:var(--ink-2);font-size:14px;font-weight:600;
  text-decoration:none;transition:background .2s ease,color .2s ease;
}
.pill:hover{background:var(--brand-soft);color:var(--brand)}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);overflow:hidden;
}
.stat-cell{padding:26px 24px;position:relative}
.stat-cell + .stat-cell::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:1px;background:var(--line);
}
.stat-label{font-size:13px;color:var(--ink-3);margin-bottom:8px}
.stat-value{font-size:24px;font-weight:800;color:var(--brand);line-height:1.2}
.stat-note{font-size:13px;color:var(--ink-2);margin-top:6px}
@media (max-width:900px){
  .stat-strip{grid-template-columns:1fr 1fr}
  .stat-cell + .stat-cell::before{display:none}
  .stat-cell{border-top:1px solid var(--line)}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-top:0}
  .stat-cell:nth-child(even){border-left:1px solid var(--line)}
}
@media (max-width:520px){
  .stat-value{font-size:20px}
  .stat-cell{padding:20px 18px}
}

/* ---------- spec table ---------- */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-card);overflow:hidden;
}
table.spec{width:100%;border-collapse:collapse}
table.spec th{
  background:var(--brand-soft);color:var(--brand-deep);font-size:14px;font-weight:700;
  text-align:left;padding:16px 20px;letter-spacing:.01em;
}
table.spec td{
  padding:16px 20px;font-size:15px;color:var(--ink-2);border-top:1px solid var(--line);
  vertical-align:top;line-height:1.7;
}
table.spec tbody tr:nth-child(even) td{background:#FAFCFF}
table.spec td:first-child{font-weight:700;color:var(--ink)}
.spec-note{font-size:13px;color:var(--ink-3);margin-top:14px}
@media (max-width:767px){.table-wrap{display:none}}
.spec-cards{display:none;gap:14px}
@media (max-width:767px){.spec-cards{display:grid}}
.spec-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--sh-card);
}
.spec-card-head{
  font-size:15px;font-weight:700;color:var(--brand-deep);margin-bottom:12px;
  padding-bottom:10px;border-bottom:1px dashed var(--line);
}
.spec-row{display:flex;gap:12px;font-size:14px;padding:5px 0}
.spec-row dt{flex:0 0 78px;color:var(--ink-3);margin:0}
.spec-row dd{flex:1;margin:0;color:var(--ink-2);line-height:1.65}

/* ---------- accordion ---------- */
.acc-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
@media (max-width:900px){.acc-grid{grid-template-columns:1fr;gap:24px}}
.acc-col-title{
  font-size:18px;font-weight:700;margin:0 0 14px;padding-left:12px;position:relative;
}
.acc-col-title::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;
  background:var(--brand);border-radius:2px;
}
.acc{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-card);overflow:hidden}
.acc-item + .acc-item{border-top:1px solid var(--line)}
.acc-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.5;
}
.acc-q:hover{color:var(--brand)}
.acc-q .plus{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:#F2F5FB;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;
  transition:transform .24s ease,background .24s ease,color .24s ease;
}
.acc-item.open .acc-q .plus{transform:rotate(45deg);background:var(--accent);color:#fff}
.acc-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.acc-a p{margin:0;padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- download cards ---------- */
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
@media (max-width:768px){.dl-grid{grid-template-columns:1fr}}
.dl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;
  box-shadow:var(--sh-card);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;gap:16px;
}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D3E0FA}
.dl-top{display:flex;align-items:center;gap:14px}
.dl-icon{
  width:48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.dl-name{font-size:18px;font-weight:700;margin:0}
.dl-meta{font-size:13px;color:var(--ink-3);margin:2px 0 0}
.dl-feature{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.dl-feature li{font-size:14px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.dl-feature li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);margin-top:9px;flex:0 0 auto}
.dl-card .btn{align-self:flex-start}
.dl-foot{font-size:13px;color:var(--ink-3);margin:0}

/* ---------- notice ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;background:var(--accent-soft);
  border:1px solid #FFDCC4;border-radius:var(--r-md);padding:20px 22px;
}
.notice-icon{
  width:34px;height:34px;border-radius:10px;background:#fff;color:var(--accent);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.notice p{margin:0;font-size:15px;color:#8A4415;line-height:1.75}

/* ---------- cta ---------- */
.cta{
  background:var(--brand-deep);color:#fff;border-radius:var(--r-lg);padding:48px;
  display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:center;
  overflow:hidden;position:relative;
}
@media (max-width:900px){.cta{grid-template-columns:1fr;padding:32px 24px;gap:24px}}
.cta h2{font-size:28px;font-weight:800;margin:0 0 12px;line-height:1.3}
@media (max-width:640px){.cta h2{font-size:22px}}
.cta p{margin:0;font-size:15px;color:rgba(255,255,255,.78)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-list{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:8px}
.cta-list li{font-size:14px;color:rgba(255,255,255,.82);display:flex;gap:10px;align-items:flex-start}
.cta-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;flex:0 0 auto;
}

/* ---------- info block ---------- */
.info-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:center}
@media (max-width:900px){.info-grid{grid-template-columns:1fr;gap:26px}}
.info-grid img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
}
.info-list{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:14px}
.info-list li{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;
  box-shadow:var(--sh-card);
}
.info-list strong{display:block;font-size:15px;margin-bottom:4px}
.info-list span{font-size:14px;color:var(--ink-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:8px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
@media (max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:520px){.foot-grid{grid-template-columns:1fr;gap:28px}}
.foot-title{font-size:15px;font-weight:700;margin:0 0 16px;color:#fff}
.foot-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;font-size:14px}
.foot-list a{color:rgba(255,255,255,.78);text-decoration:none;transition:color .2s ease}
.foot-list a:hover{color:var(--accent)}
.qr{
  width:112px;height:112px;border-radius:12px;border:1px dashed rgba(255,255,255,.42);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:rgba(255,255,255,.72);padding:10px;
}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.7);
}

/* roulang page: category4 */
:root{
  --brand:#1F5AE0;
  --brand-deep:#143C99;
  --accent:#FF7A2F;
  --accent-soft:#FFF3EA;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F1B2D;
  --ink-2:#55637A;
  --ink-3:#8A94A6;
  --line:#E4E9F2;
  --ok:#12A87A;
  --warn:#E5484D;
  --shadow-card:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --shadow-hover:0 12px 32px rgba(20,60,153,.12);
  --shadow-nav:0 1px 0 #E4E9F2, 0 8px 24px rgba(15,27,45,.06);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
h1,h2,h3,h4{margin:0}
ul,ol{margin:0;padding:0}
[aria-hidden="true"]{pointer-events:none}
[id]{scroll-margin-top:136px}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-nav)}
.brand .logo-badge{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;
}
.nav-link{
  position:relative;font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transition:transform .22s ease;
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink)}
.count-pill{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 12px;
  border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;
  letter-spacing:.02em;
}
.count-pill .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.7s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

.mobile-drawer{
  position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;z-index:55;
  padding:16px 24px 32px;overflow-y:auto;
  transform:translateY(-10px);opacity:0;pointer-events:none;
  transition:transform .2s ease,opacity .2s ease;
}
.mobile-drawer.open{transform:translateY(0);opacity:1;pointer-events:auto}
.mobile-drawer a.m-link{
  display:block;padding:15px 4px;border-bottom:1px solid var(--line);
  font-size:16px;font-weight:600;color:var(--ink-2);
}
.mobile-drawer a.m-link.active{color:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,122,47,.22)}
.btn-primary:hover{background:#F26A1E;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0);filter:saturate(.92)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:#EEF4FF;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);filter:saturate(.92)}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:3px solid rgba(255,122,47,.45);outline-offset:2px;
}

/* ---------- 内页 Hero ---------- */
.cat-hero{position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:rgba(31,90,224,.06);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3)}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--brand)}
.crumb .cur{color:var(--ink-2);font-weight:600}

.search-box{
  display:flex;align-items:center;gap:10px;max-width:560px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 8px 8px 20px;box-shadow:var(--shadow-card);
}
.search-box .s-ico{flex:0 0 auto;color:var(--ink-3);display:flex}
.search-box input{
  flex:1;min-width:0;height:40px;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--ink);
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box .btn{border-radius:999px;height:42px;padding:0 26px}
@media(max-width:560px){
  .search-box{flex-wrap:wrap;border-radius:16px;padding:12px;gap:8px}
  .search-box input{flex:1 1 100%;width:100%;padding-left:4px}
  .search-box .btn{width:100%}
  .search-box .s-ico{display:none}
}

.chip{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:border-color .2s,color .2s,background-color .2s;
}
.chip:hover{border-color:var(--brand);color:var(--brand);background:#EEF4FF}

.hero-figure{
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card);
  aspect-ratio:16/11;background:#EEF4FF;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-badge{
  position:absolute;left:12px;bottom:-16px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-card);padding:12px 18px;
  display:flex;align-items:center;gap:10px;
}
.hero-badge .dot-ok{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(18,168,122,.16)}
.hero-badge strong{display:block;font-size:14px;line-height:1.3}
.hero-badge span{display:block;font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums}

/* ---------- 锚点导航 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:50;
  background:rgba(246,248,252,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.anchor-row{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:12px 0;-webkit-overflow-scrolling:touch}
.anchor-row::-webkit-scrollbar{height:0}
.anchor-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);white-space:nowrap;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:border-color .2s,color .2s,background-color .2s;
}
.anchor-pill:hover{border-color:var(--brand);color:var(--brand);background:#EEF4FF}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section-flush{padding-top:0}
@media(max-width:767px){
  .section{padding:56px 0}
  .section-flush{padding-top:0}
}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-bottom:12px}
.sec-head p{margin:0;font-size:16px;color:var(--ink-2)}
@media(max-width:767px){
  .sec-head{margin-bottom:28px}
  .sec-head h2{font-size:22px}
  .sec-head p{font-size:15px}
}

/* ---------- 速览卡片 ---------- */
.tile{
  display:block;position:relative;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9D8F7}
.tile-ico{
  width:44px;height:44px;border-radius:12px;background:#EEF4FF;color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.tile h3{font-size:17px;font-weight:600;margin-bottom:8px;transition:color .2s}
.tile:hover h3{color:var(--brand)}
.tile p{font-size:14px;line-height:1.7;color:var(--ink-2);margin:0}
.tile-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.tile-more svg{transition:transform .2s ease}
.tile:hover .tile-more svg{transform:translateX(4px)}

/* ---------- FAQ 分组 ---------- */
.faq-group{margin-bottom:48px}
.faq-group:last-child{margin-bottom:0}
.group-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:18px}
.group-num{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;background:#EEF4FF;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.group-head h3{font-size:20px;font-weight:700;margin-bottom:4px}
.group-head p{margin:0;font-size:14px;color:var(--ink-3)}
@media(max-width:640px){
  .group-head h3{font-size:18px}
}
.faq-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-card);padding:4px 24px;
}
@media(max-width:640px){.faq-card{padding:2px 16px}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;text-align:left;padding:18px 0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  transition:transform .24s ease,background-color .24s ease,border-color .24s ease,color .24s ease;
}
.faq-item.open .faq-ico{transform:rotate(45deg);background:var(--accent);border-color:var(--accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:0 40px 20px 0;font-size:15px;line-height:1.8;color:var(--ink-2)}
@media(max-width:640px){.faq-a-inner{padding-right:8px}}

/* ---------- 客服支持 ---------- */
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-card);padding:32px;
}
@media(max-width:640px){.support-card{padding:22px}}
.support-cover{
  width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:12px;margin-bottom:24px;
}
.support-card h2{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:12px}
.support-card .lead{font-size:15px;color:var(--ink-2);margin:0 0 24px}
@media(max-width:767px){.support-card h2{font-size:21px}}

.contact-list{list-style:none;display:grid;gap:12px}
.contact-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px;border-radius:12px;background:var(--bg);border:1px solid var(--line);
}
.contact-list .cl-ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:#fff;color:var(--brand);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
}
.contact-list strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.contact-list span{font-size:14px;color:var(--ink-2);word-break:break-all}

.steps-list{list-style:none;counter-reset:st;display:grid;gap:14px;margin-top:26px}
.steps-list li{
  position:relative;padding-left:38px;font-size:15px;line-height:1.7;color:var(--ink-2);
}
.steps-list li::before{
  counter-increment:st;content:counter(st);
  position:absolute;left:0;top:2px;width:26px;height:26px;border-radius:50%;
  background:var(--accent-soft);color:var(--accent);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
}

.qr-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-card);padding:32px;text-align:center;
  display:flex;flex-direction:column;align-items:center;
}
.qr-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.qr-card p{font-size:14px;color:var(--ink-2);margin:0 0 20px}
.qr-box{
  width:158px;height:158px;border-radius:14px;border:1px solid var(--line);
  background:repeating-linear-gradient(45deg,#F1F5FD 0 8px,#E7EEFB 8px 16px);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.6;color:var(--ink-2);padding:14px;margin-bottom:20px;
}
.qr-meta{display:grid;gap:10px;width:100%;text-align:left;font-size:14px;color:var(--ink-2)}
.qr-meta div{display:flex;justify-content:space-between;gap:12px;padding:11px 14px;background:var(--bg);border-radius:10px;border:1px solid var(--line)}
.qr-meta b{color:var(--ink);font-weight:600}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand-deep);border-radius:20px;padding:48px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 18px 40px rgba(20,60,153,.18);
}
.cta-panel h2{color:#fff;font-size:26px;line-height:1.35;font-weight:700;margin-bottom:10px}
.cta-panel p{color:rgba(255,255,255,.76);font-size:15px;margin:0;max-width:520px}
@media(max-width:767px){
  .cta-panel{padding:32px 22px;border-radius:16px}
  .cta-panel h2{font-size:21px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:64px 0 0;margin-top:0}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;
}
@media(max-width:900px){.foot-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr;gap:28px}}
.foot-title{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff}
.foot-list{list-style:none;display:grid;gap:10px;font-size:14px}
.foot-list a{color:rgba(255,255,255,.78);transition:color .2s ease}
.foot-list a:hover{color:var(--accent)}
.foot-qr{
  width:120px;height:120px;border-radius:12px;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.16) 0 6px,rgba(255,255,255,.06) 6px 12px);
  border:1px solid rgba(255,255,255,.22);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.5;color:rgba(255,255,255,.82);padding:10px;
}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.68);
}