/* roulang page: index */
:root{
  --brand:#175CD3;
  --brand-deep:#0F3F9E;
  --brand-soft:#EEF3FF;
  --accent:#FF7A29;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --ink:#0F172A;
  --text:#475569;
  --muted:#94A3B8;
  --line:#E2E8F0;
  --ok:#12B76A;
  --warn:#F04438;
  --dark:#0B1220;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(15,23,42,.05), 0 2px 8px rgba(15,23,42,.06);
  --sh-2:0 12px 28px rgba(23,92,211,.12);
  --container:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:-0.01em;}
.num,.stat-value,.board-row strong{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--sec) 0;}
.section-sm{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(22px,2.2vw,28px);line-height:1.3;}
.sec-head .sec-lead{font-size:17px;color:var(--text);margin-top:8px;max-width:720px;}
.sec-link{font-size:15px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.sec-link i{transition:transform .2s ease;}
.sec-link:hover i{transform:translateX(4px);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:all .2s ease;white-space:nowrap;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(23,92,211,.18);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(23,92,211,.26);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;height:48px;}
.btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .25s ease;}
.site-header.is-stuck{box-shadow:0 1px 0 #E8EEF9, 0 6px 18px rgba(15,23,42,.05);}
.brand-bar{border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex:0 0 auto;letter-spacing:0;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;align-items:center;justify-content:center;}
.channel-bar{border-bottom:1px solid var(--line);background:#fff;}
.channel-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{position:relative;font-size:15px;color:var(--text);font-weight:500;height:48px;display:inline-flex;align-items:center;white-space:nowrap;}
.channel-link:hover{color:var(--brand);}
.channel-link.is-active{color:var(--brand);font-weight:600;}
.channel-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--brand);border-radius:3px 3px 0 0;}

/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.88);}
.hero-inner{position:relative;z-index:1;padding:72px 0 80px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;}
.hero h1{font-size:clamp(30px,3.2vw,44px);line-height:1.25;font-weight:700;letter-spacing:-0.01em;margin:18px 0 16px;}
.hero-sub{font-size:17px;color:var(--text);max-width:560px;line-height:1.8;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 24px;}
.trust-badges{display:flex;flex-wrap:wrap;gap:12px 22px;}
.trust-badges li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text);}
.trust-badges i{color:var(--brand);font-size:15px;}
.hero-board{background:#fff;border-radius:var(--r-card);box-shadow:0 12px 28px rgba(23,92,211,.12);border:1px solid #E8EEF9;padding:24px;}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px dashed var(--line);}
.board-live{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(18,183,106,.14);}
.board-time{font-size:13px;color:var(--muted);}
.board-rows{margin:8px 0 16px;}
.board-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.board-row:last-child{border-bottom:0;}
.board-row span{font-size:14px;color:var(--text);}
.board-row strong{font-size:15px;color:var(--ink);font-weight:700;}
.board-row strong.ok{color:var(--ok);}
.board-row strong.ac{color:var(--accent);}
.board-spark{display:flex;align-items:flex-end;gap:6px;height:44px;margin-bottom:14px;}
.board-spark i{display:block;flex:1;border-radius:4px;background:linear-gradient(180deg,#4F8BFF,#175CD3);opacity:.85;}
.board-note{font-size:12.5px;color:var(--muted);line-height:1.7;}

/* 指标看板 */
.metrics .metric-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);border:1px solid #EDF1F8;padding:22px;transition:transform .25s ease, box-shadow .25s ease;height:100%;}
.metrics .metric-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.metric-label{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.metric-value{display:flex;align-items:baseline;gap:6px;margin:10px 0 12px;}
.metric-value b{font-size:34px;font-weight:700;color:var(--ink);line-height:1;letter-spacing:-0.02em;}
.metric-value em{font-style:normal;font-size:14px;color:var(--muted);}
.metric-bar{height:6px;border-radius:999px;background:#EEF3FF;overflow:hidden;}
.metric-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#175CD3,#4F8BFF);}
.metric-foot{display:flex;align-items:center;justify-content:space-between;margin-top:12px;}
.tag-up{font-size:12.5px;font-weight:600;color:var(--ok);background:rgba(18,183,106,.1);padding:2px 10px;border-radius:999px;}
.tag-warn{font-size:12.5px;font-weight:600;color:var(--accent);background:rgba(255,122,41,.12);padding:2px 10px;border-radius:999px;}
.metric-foot span{font-size:12.5px;color:var(--muted);}

/* 服务矩阵 bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px;}
.bento-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);border:1px solid #EDF1F8;padding:26px;transition:transform .25s ease, box-shadow .25s ease;display:flex;flex-direction:column;}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.bento-card.large{grid-column:span 3;}
.bento-card.small{grid-column:span 2;position:relative;padding-top:30px;}
.bento-card.small::before{content:"";position:absolute;top:0;left:26px;width:34px;height:2px;background:var(--brand);border-radius:2px;}
.bento-icon{width:48px;height:48px;border-radius:12px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;}
.bento-card h3{font-size:20px;margin-bottom:10px;}
.bento-card.small h3{font-size:18px;}
.bento-card p{font-size:15px;color:var(--text);line-height:1.85;margin-bottom:16px;}
.bento-card .bento-link{margin-top:auto;font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.bento-card .bento-link i{transition:transform .2s ease;}
.bento-card .bento-link:hover i{transform:translateX(4px);}

/* 结果对比 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-1);border:1px solid #EDF1F8;overflow:hidden;}
.compare-col{padding:28px;}
.compare-col + .compare-col{border-left:1px dashed var(--line);}
.compare-col h3{font-size:18px;margin-bottom:6px;}
.compare-col .col-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.compare-row{padding:12px 0;border-bottom:1px solid #F1F5FB;}
.compare-row:last-child{border-bottom:0;}
.compare-row .cr-top{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;}
.cr-top span{color:var(--text);}
.cr-top b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;}
.cr-bar{height:5px;border-radius:999px;background:#F1F5FB;margin-top:8px;overflow:hidden;}
.cr-bar i{display:block;height:100%;border-radius:999px;}
.compare-col.plain .cr-bar i{background:#CBD5E1;}
.compare-col.check .cr-bar i{background:linear-gradient(90deg,#175CD3,#4F8BFF);}
.result-note{margin-top:20px;background:var(--brand-soft);border-left:4px solid var(--accent);border-radius:10px;padding:16px 20px;font-size:15px;color:var(--ink);font-weight:600;}
.result-tip{margin-top:12px;font-size:13px;color:var(--muted);}

/* 最新信息列表 */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.news-card{display:flex;gap:18px;background:#fff;border-radius:var(--r-card);border:1px solid #EDF1F8;box-shadow:var(--sh-1);padding:16px;transition:transform .25s ease, box-shadow .25s ease;color:inherit;}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:inherit;}
.news-thumb{width:200px;aspect-ratio:16/9;flex:0 0 auto;border-radius:var(--r-img);overflow:hidden;background:#EEF3FF;}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{display:flex;flex-direction:column;min-width:0;flex:1;}
.news-title{font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px;}
.news-sum{font-size:14px;color:var(--text);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px;}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;}
.news-meta .arrow{margin-left:auto;color:var(--brand);transition:transform .2s ease;}
.news-card:hover .arrow{transform:translateX(4px);}
.news-empty{grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);}
.news-empty i{font-size:28px;color:var(--muted);}
.news-empty p{margin:14px 0 18px;font-size:15px;color:var(--text);}

/* 核对清单 */
.check-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.check-item{background:#fff;border-radius:var(--r-card);border:1px solid #EDF1F8;box-shadow:var(--sh-1);padding:24px;}
.check-item .ci-idx{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;}
.check-item h3{font-size:17px;margin:10px 0 8px;}
.check-item p{font-size:14.5px;color:var(--text);line-height:1.8;}

/* 用户反馈 */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.voice{background:#fff;border-radius:var(--r-card);border:1px solid #EDF1F8;box-shadow:var(--sh-1);padding:24px;display:flex;flex-direction:column;}
.voice p{font-size:15px;color:var(--text);line-height:1.85;margin-bottom:18px;}
.voice .v-foot{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.v-avatar{width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-group-title{font-size:18px;margin:36px 0 12px;display:flex;align-items:center;gap:10px;}
.faq-group-title span{width:4px;height:18px;border-radius:2px;background:var(--brand);display:inline-block;}
.faq-list{border:0;background:transparent;margin:0;border-top:1px solid var(--line);}
.faq-list .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq-list .accordion-title{border:0;background:transparent;padding:0 44px 0 0;min-height:56px;display:flex;align-items:center;gap:14px;font-size:16px;font-weight:600;color:var(--ink);position:relative;line-height:1.6;}
.faq-list .accordion-title:hover{color:var(--brand);}
.faq-list .accordion-title::before{display:none;}
.faq-num{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;flex:0 0 auto;}
.faq-q{flex:1;}
.faq-ico{position:absolute;right:0;top:50%;width:20px;height:20px;transform:translateY(-50%);}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transition:transform .2s ease;}
.faq-ico::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-ico::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-list .accordion-item.is-active .faq-ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-list .accordion-content{border:0;background:transparent;padding:0 40px 20px 27px;max-width:640px;font-size:15px;color:var(--text);line-height:1.85;}
.faq-list .accordion-content p{margin:0;}

/* 表单 */
.cta-panel{background:#fff;border-radius:18px;box-shadow:var(--sh-1);border:1px solid #EDF1F8;overflow:hidden;}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;}
.cta-left{background:linear-gradient(180deg,#F7FAFF,#EEF3FF);padding:40px;}
.cta-left h2{font-size:24px;margin-bottom:14px;}
.cta-left .cta-desc{font-size:15px;color:var(--text);line-height:1.85;margin-bottom:22px;}
.cta-points{margin-bottom:26px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text);padding:7px 0;}
.cta-points i{color:var(--brand);margin-top:6px;font-size:13px;}
.cta-contact{font-size:13.5px;color:var(--muted);line-height:1.9;border-top:1px dashed #C9DBFF;padding-top:16px;}
.cta-right{padding:40px;}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.form-row .hint{font-size:12.5px;color:var(--muted);font-weight:400;margin-left:6px;}
.input,select.input,textarea.input{width:100%;border:1px solid var(--line);border-radius:var(--r-input);background:#fff;color:var(--ink);transition:border-color .2s ease, box-shadow .2s ease;}
input.input,select.input{height:44px;padding:0 14px;}
textarea.input{min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
.input::placeholder{color:#B6C0CE;}
.input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,92,211,.18);outline:none;}
.input.is-error{border-color:var(--warn);box-shadow:0 0 0 3px rgba(240,68,56,.12);}
.err-text{display:none;font-size:13px;color:var(--warn);margin-top:6px;}
.err-text.show{display:block;}
.checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--text);line-height:1.7;}
.checkbox-line input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand);}
.form-success{display:none;background:#ECFDF3;border:1px solid #A6F4C5;color:#05603A;border-radius:10px;padding:14px 16px;font-size:14px;margin-bottom:18px;}
.form-success.show{display:block;}

/* 页脚 */
.site-footer{background:var(--dark);color:#CBD5E1;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand .f-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .f-logo .logo-mark{background:var(--brand);}
.footer-brand .f-logo strong{color:#fff;font-size:16px;display:block;line-height:1.4;}
.footer-brand .f-logo em{font-style:normal;font-size:12px;color:#7C8AA3;}
.footer-brand p{font-size:13.5px;color:#94A3B8;line-height:1.9;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#CBD5E1;font-size:13.5px;}
.footer-col a:hover{color:#93B4FF;}
.footer-contact{font-size:13.5px;color:#94A3B8;line-height:1.95;}
.qr-placeholder{width:88px;height:88px;border-radius:12px;border:1px dashed #33405A;background:#111B30;display:flex;align-items:center;justify-content:center;color:#4C5B76;font-size:23px;margin-top:14px;}
.footer-bottom{border-top:1px solid #1B2740;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C8AA3;}
.footer-bottom a{color:#94A3B8;}
.footer-bottom a:hover{color:#93B4FF;}

/* 返回顶部 */
.to-top{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 24px rgba(23,92,211,.3);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;z-index:70;border:0;cursor:pointer;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);}

/* 响应式 */
@media (max-width:1024px){
  :root{--sec:64px;}
  .container{padding:0 24px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .bento-card.large,.bento-card.small{grid-column:span 3;}
  .check-list,.voices{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .channel-bar.is-open{display:block;}
  .channel-inner{flex-direction:column;align-items:stretch;gap:0;height:auto;padding:6px 0 10px;}
  .channel-link{height:auto;padding:12px 4px;border-bottom:1px solid var(--line);}
  .channel-link.is-active::after{display:none;}
  .brand-inner{height:60px;}
  .bento{grid-template-columns:1fr;}
  .bento-card.large,.bento-card.small{grid-column:span 1;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px dashed var(--line);}
  .news-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  :root{--sec:48px;}
  .container{padding:0 16px;}
  .hero-inner{padding:48px 0 56px;}
  .hero-btns .btn{flex:1 1 auto;}
  .metrics .metric-card{padding:18px;}
  .metric-value b{font-size:30px;}
  .check-list,.voices{grid-template-columns:1fr;}
  .news-card{flex-direction:column;}
  .news-thumb{width:100%;}
  .news-title{font-size:16px;}
  .cta-left,.cta-right{padding:26px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:480px){
  .hero-btns{flex-direction:column;}
  .hero-btns .btn{width:100%;}
  .logo-text strong{font-size:15px;}
  .logo-text em{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --brand:#175CD3;
  --brand-deep:#0F3F9E;
  --brand-soft:#EEF3FF;
  --accent:#FF7A29;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --dark:#0B1220;
  --ink:#0F172A;
  --muted:#475569;
  --faint:#94A3B8;
  --line:#E2E8F0;
  --line-soft:#E8EEF9;
  --ok:#12B76A;
  --warn:#F04438;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 2px 8px rgba(15,23,42,.06);
  --sh-2:0 12px 28px rgba(23,92,211,.12);
  --sans:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.9;
  color:var(--muted);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4,h5{color:var(--ink);margin:0;font-weight:700;letter-spacing:-0.01em;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
button,input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 var(--line-soft),0 6px 18px rgba(15,23,42,.05);}
.brand-bar{border-bottom:1px solid var(--line-soft);}
.brand-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:16px;
}
.logo{display:flex;align-items:center;gap:12px;color:inherit;}
.logo:hover{color:inherit;}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand);
  color:#fff;font-size:20px;font-weight:700;
  box-shadow:0 6px 16px rgba(23,92,211,.25);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--faint);}
.brand-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);
  background:#fff;color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(23,92,211,.2);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(23,92,211,.28);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-block{width:100%;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}

.channel-bar{background:#fff;border-bottom:1px solid var(--line-soft);}
.channel-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s ease;
}
.channel-link:hover{color:var(--brand);}
.channel-link.is-active{color:var(--brand);font-weight:600;}
.channel-link.is-active::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:3px;border-radius:3px 3px 0 0;
  background:var(--brand);
}

/* ---------- Breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line-soft);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--faint);
}
.crumb a{color:var(--faint);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#CBD5E1;}
.crumb .current{color:var(--muted);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- Article head ---------- */
.article-head{padding:48px 0 0;}
.article-head-inner{max-width:860px;margin:0 auto;text-align:center;}
.article-title{
  font-size:clamp(26px,2.8vw,36px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.article-meta{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px;
  font-size:13px;color:var(--faint);
}
.badge-cat{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;font-weight:600;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CBD5E1;display:inline-block;}
.article-cover{
  max-width:1000px;
  margin:28px auto 0;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--brand-soft);
  box-shadow:var(--sh-1);
}
.article-cover img{
  width:100%;
  aspect-ratio:21/9;
  object-fit:cover;
}

/* ---------- Article body ---------- */
.article-section{padding:56px 0 0;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px);
  justify-content:center;
  gap:56px;
}
.article-body{font-size:16px;line-height:1.92;color:var(--muted);}
.article-body > * + *{margin-top:20px;}
.article-body h2{
  position:relative;
  font-size:24px;
  line-height:1.45;
  color:var(--ink);
  margin-top:44px;
  padding-left:16px;
  border-left:4px solid var(--brand);
  scroll-margin-top:140px;
}
.article-body h3{
  font-size:19px;
  color:var(--ink);
  font-weight:600;
  margin-top:32px;
  scroll-margin-top:140px;
}
.article-body p{color:var(--muted);}
.article-body ul,.article-body ol{padding-left:22px;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;color:var(--muted);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:24px 0;
  padding:16px 20px;
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--ink);
}
.article-body blockquote p{margin:0;color:var(--ink);}
.article-body img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:10px;}
.article-body table{
  display:block;
  width:100%;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border-collapse:collapse;
  font-size:14px;
  border-radius:var(--r-img);
  background:#fff;
  box-shadow:var(--sh-1);
}
.article-body thead{background:var(--brand-soft);}
.article-body th,.article-body td{
  padding:12px 16px;
  border-bottom:1px solid var(--line);
  text-align:left;
  white-space:nowrap;
}
.article-body th{color:var(--ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#F8FAFF;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body code{
  font-family:var(--mono);
  background:#F1F5F9;
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
  color:var(--brand-deep);
}
.empty-state{
  text-align:center;
  padding:64px 24px;
  background:#fff;
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.empty-state i{font-size:36px;color:var(--brand);margin-bottom:16px;display:block;}
.empty-state p{font-size:17px;color:var(--ink);font-weight:600;margin-bottom:20px;}

/* ---------- TOC ---------- */
.toc{display:none;}
.toc-inner{position:sticky;top:150px;}
.toc h4{font-size:13px;color:var(--faint);font-weight:600;letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase;}
.toc ol{list-style:none;padding:0;border-left:1px solid var(--line);}
.toc li{margin:0;}
.toc a{
  display:block;
  padding:8px 0 8px 14px;
  font-size:14px;
  color:var(--muted);
  border-left:2px solid transparent;
  margin-left:-1px;
  line-height:1.5;
  transition:all .2s ease;
}
.toc a:hover{color:var(--brand);border-left-color:var(--brand);}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,760px) 220px;}
  .toc:not([hidden]){display:block;}
}

/* ---------- Tags / share ---------- */
.article-foot{
  max-width:760px;margin:48px auto 0;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px;
}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tag-row span.label{font-size:13px;color:var(--faint);}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);
  transition:all .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.share-row{display:flex;align-items:center;gap:10px;}
.share-row .label{font-size:13px;color:var(--faint);}
.share-btn{
  width:34px;height:34px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:13px;transition:all .2s ease;
}
.share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.back-row{max-width:760px;margin:24px auto 0;}
.back-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);}
.back-link i{transition:transform .2s ease;}
.back-link:hover i{transform:translateX(-4px);}

/* ---------- Related ---------- */
.related{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.section-head h2{font-size:26px;}
.section-head p{font-size:15px;color:var(--muted);margin-top:8px;}
.section-head .more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.section-head .more i{transition:transform .2s ease;}
.section-head .more:hover i{transform:translateX(4px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  display:flex;flex-direction:column;
  background:#fff;border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.post-card .thumb{background:var(--brand-soft);}
.post-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-card h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13px;color:var(--faint);}

/* ---------- CTA ---------- */
.cta-band{
  margin:96px 0 0;
  background:var(--dark);
  color:#E2E8F0;
  padding:56px 0;
}
.cta-band .inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;}
.cta-band p{color:#94A3B8;font-size:15px;max-width:640px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#CBD5E1;padding:64px 0 28px;font-size:13.5px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.f-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.f-logo strong{color:#fff;font-size:16px;display:block;line-height:1.3;}
.f-logo em{font-style:normal;font-size:12px;color:#7C8DA6;}
.footer-brand p{color:#94A3B8;line-height:1.85;max-width:340px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#CBD5E1;}
.footer-col a:hover{color:#93B4FF;}
.footer-contact{color:#94A3B8;line-height:1.9;}
.qr-placeholder{
  margin-top:16px;width:88px;height:88px;border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px dashed rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;
  color:#7C8DA6;font-size:30px;
}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:#7C8DA6;
}
.footer-bottom a{color:#93B4FF;}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  width:44px;height:44px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  color:var(--brand);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-section{padding-top:40px;}
}
@media (max-width:900px){
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .channel-bar{display:none;}
  .site-header.is-nav-open .channel-bar{display:block;}
  .site-header.is-nav-open .channel-inner{
    flex-direction:column;
    align-items:stretch;
    min-height:0;
    padding:6px 0 14px;
    gap:2px;
    overflow:visible;
  }
  .site-header.is-nav-open .channel-link{
    height:44px;
    border-radius:var(--r-btn);
    padding:0 12px;
  }
  .site-header.is-nav-open .channel-link.is-active{background:var(--brand-soft);}
  .site-header.is-nav-open .channel-link.is-active::after{display:none;}
  .article-head{padding-top:32px;}
  .article-cover img{aspect-ratio:16/9;}
  .related{padding-top:56px;}
  .cta-band{margin-top:64px;padding:44px 0;}
}
@media (max-width:768px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .logo-text strong{font-size:15px;}
  .logo-text em{display:none;}
  .brand-actions .btn,.brand-actions .icon-btn{display:none;}
  .article-title{font-size:24px;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .cta-band .inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#175CD3;
  --c-primary-dark:#0F3F9E;
  --c-primary-soft:#EEF3FF;
  --c-accent:#FF7A29;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0B1220;
  --c-title:#0F172A;
  --c-text:#475569;
  --c-muted:#94A3B8;
  --c-line:#E2E8F0;
  --c-success:#12B76A;
  --c-danger:#F04438;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 2px 8px rgba(15,23,42,.06);
  --sh-2:0 12px 28px rgba(23,92,211,.12);
  --sp-section:96px;
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  font-feature-settings:"tnum" 1;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4,h5{font-family:var(--font);color:var(--c-title);margin:0;line-height:1.3;font-weight:700}
h1{font-size:clamp(30px,3.2vw,44px);font-weight:700;letter-spacing:-.01em;line-height:1.25}
h2{font-size:clamp(22px,2.2vw,28px);font-weight:700}
h3{font-size:19px;font-weight:600}
h4{font-size:16px;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:var(--font);cursor:pointer}
input,select,textarea{font-family:var(--font);font-size:15px;color:var(--c-title)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.section{padding:var(--sp-section) 0}
.section--tight{padding:calc(var(--sp-section) * .62) 0}
.section-head{margin-bottom:32px}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--c-primary);background:var(--c-primary-soft);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:14px;font-weight:600}
.section-head h2{margin-bottom:12px}
.section-head .lead{font-size:17px;color:var(--c-text);max-width:760px}
.section-head--split{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.text-link{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link i{font-size:12px;transition:transform .18s ease}
.text-link:hover i{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;text-align:center;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 1px 2px rgba(23,92,211,.24)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,92,211,.22)}
.btn-outline{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 1px 0 #E8EEF9,0 6px 18px rgba(15,23,42,.05)}
.brand-bar{border-bottom:1px solid var(--c-line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.logo{display:flex;align-items:center;gap:12px;color:var(--c-title)}
.logo:hover{color:var(--c-title)}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:linear-gradient(135deg,#175CD3,#4F8BFF);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25}
.logo-text strong{font-size:18px;font-weight:700;color:var(--c-title);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted)}
.brand-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-text);display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.nav-toggle{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-title);display:none;align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

.search-panel{border-bottom:1px solid var(--c-line);background:#fff}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 0;flex-wrap:wrap}
.search-inner input{
  flex:1 1 260px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;background:#fff;
}
.search-inner input:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,92,211,.18);outline:none}
.search-tip{font-size:13px;color:var(--c-muted);flex:1 1 100%;margin:0}

.channel-bar{background:#fff;border-bottom:1px solid var(--c-line)}
.channel-inner{
  display:flex;align-items:center;gap:28px;min-height:48px;
  overflow-x:auto;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;font-size:15px;color:var(--c-text);white-space:nowrap;
  padding:12px 0;font-weight:500;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:transparent;transition:background .18s ease;
}
.channel-link:hover{color:var(--c-primary)}
.channel-link.is-active{color:var(--c-primary);font-weight:600}
.channel-link.is-active::after{background:var(--c-primary)}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .26s ease;padding:20px;
  display:flex;flex-direction:column;gap:18px;overflow-y:auto;box-shadow:-14px 0 34px rgba(15,23,42,.14);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;border-bottom:1px solid var(--c-line);padding-bottom:16px}
.drawer-head .logo-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px;border-radius:10px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-title)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:14px 2px;border-bottom:1px solid var(--c-line);color:var(--c-text);font-size:15px;font-weight:500;
}
.drawer-nav a.is-active{color:var(--c-primary);font-weight:600}
.drawer-mask{position:fixed;inset:0;background:rgba(11,18,32,.42);z-index:110;opacity:0;pointer-events:none;transition:opacity .26s ease}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* ---------- Banner ---------- */
.page-banner{
  position:relative;
  background-color:var(--c-primary-soft);
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  padding:56px 0 64px;
  border-bottom:1px solid var(--c-line);
}
.page-banner::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.88)}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:18px}
.breadcrumb a{color:var(--c-text)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-muted)}
.banner-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);
  background:#fff;border:1px solid #D7E3FF;border-radius:var(--r-pill);padding:4px 14px;margin-bottom:16px;
}
.page-banner h1{max-width:900px;margin-bottom:18px}
.banner-lead{font-size:17px;color:var(--c-text);max-width:820px;margin-bottom:12px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 30px}
.banner-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;max-width:960px}
.bstat{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-1)}
.bstat .label{font-size:13px;color:var(--c-muted);display:block;margin-bottom:6px}
.bstat .value{font-size:26px;font-weight:700;color:var(--c-title);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.bstat .value small{font-size:13px;font-weight:500;color:var(--c-muted);margin-left:4px}
.bstat .bar{height:6px;border-radius:var(--r-pill);background:var(--c-primary-soft);margin-top:12px;overflow:hidden}
.bstat .bar span{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,#175CD3,#4F8BFF)}

/* ---------- 要点小卡 ---------- */
.point-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 22px 24px;
  box-shadow:var(--sh-1);height:100%;position:relative;transition:transform .2s ease,box-shadow .2s ease;
}
.point-card::before{content:"";position:absolute;top:0;left:22px;width:36px;height:2px;background:var(--c-primary);border-radius:0 0 3px 3px}
.point-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.point-card h3{margin:10px 0 10px;font-size:18px}
.point-card p{font-size:15px;color:var(--c-text);margin-bottom:0}

/* ---------- 聚合区 ---------- */
.aggregate{padding-top:calc(var(--sp-section) * .7)}
.side-tabs{position:sticky;top:140px}
.side-tabs .side-title{font-size:13px;letter-spacing:.08em;color:var(--c-muted);margin-bottom:14px;font-weight:600}
.side-tabs a{
  display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;
  font-size:15px;color:var(--c-text);border:1px solid transparent;margin-bottom:8px;background:#fff;
  box-shadow:var(--sh-1);transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.side-tabs a i{font-size:12px;color:var(--c-muted);transition:color .18s ease}
.side-tabs a:hover,.side-tabs a.is-active{color:var(--c-primary);border-color:#CFE0FF;background:var(--c-primary-soft)}
.side-tabs a:hover i,.side-tabs a.is-active i{color:var(--c-primary)}

.entry-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.entry-cover{position:relative;aspect-ratio:16/9;background:var(--c-primary-soft);overflow:hidden}
.entry-cover img{width:100%;height:100%;object-fit:cover;border-radius:0}
.entry-cover img.is-broken{visibility:hidden}
.entry-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.entry-tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-primary);background:var(--c-primary-soft);
  border-radius:var(--r-pill);padding:3px 10px;margin-bottom:12px;
}
.entry-body h3{font-size:17px;font-weight:600;margin-bottom:10px;line-height:1.5}
.entry-body p{font-size:14px;color:var(--c-text);line-height:1.75;margin-bottom:16px}
.entry-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-muted);border-top:1px solid var(--c-line);padding-top:14px;
}
.entry-meta .arrow{color:var(--c-primary);transition:transform .18s ease}
.entry-card:hover .entry-meta .arrow{transform:translateX(4px)}

/* ---------- 对比条 ---------- */
.compare-band{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px 28px;display:grid;grid-template-columns:1fr 1px 1fr;gap:28px;align-items:stretch;
}
.compare-col h4{font-size:15px;color:var(--c-muted);font-weight:600;margin-bottom:14px}
.compare-col li{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:15px;padding:10px 0;border-bottom:1px dashed var(--c-line)}
.compare-col li:last-child{border-bottom:0}
.compare-col li span:last-child{font-variant-numeric:tabular-nums;font-weight:600;color:var(--c-title)}
.compare-line{background:repeating-linear-gradient(180deg,var(--c-line) 0 6px,transparent 6px 12px)}
.compare-note{
  margin-top:22px;background:var(--c-primary-soft);border-left:4px solid var(--c-accent);
  border-radius:0 10px 10px 0;padding:14px 18px;font-size:15px;color:var(--c-primary-dark);font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;background:transparent;border:0;padding:0;min-height:56px;
  display:flex;align-items:center;gap:16px;text-align:left;
}
.faq-num{font-size:13px;color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:600;flex:0 0 26px}
.faq-text{flex:1 1 auto;font-size:16px;font-weight:600;color:var(--c-title);padding:16px 0}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a.is-open{max-height:420px}
.faq-a-inner{max-width:640px;padding:0 0 22px 42px;font-size:15px;color:var(--c-text);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-dark);padding:var(--sp-section) 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,92,211,.35),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{color:#fff;margin-bottom:16px}
.cta-copy p{color:#CBD5E1;font-size:16px}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#fff;
  background:rgba(255,122,41,.16);border:1px solid rgba(255,122,41,.5);border-radius:var(--r-pill);
  padding:4px 14px;margin-bottom:18px;
}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:#CBD5E1}
.cta-points i{color:var(--c-accent);margin-top:6px;font-size:12px}
.cta-form{
  background:#fff;border-radius:var(--r-card);padding:26px;box-shadow:0 20px 44px rgba(3,8,20,.32);
}
.cta-form h3{margin-bottom:6px}
.cta-form .form-hint{font-size:14px;color:var(--c-muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--c-text);font-weight:600;margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:0 14px;background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(23,92,211,.18);outline:none;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-danger)}
.field .err{display:none;font-size:13px;color:var(--c-danger);margin-top:6px}
.field.has-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--c-text);margin:6px 0 18px}
.check-row input{margin-top:4px;width:16px;height:16px;flex:0 0 16px;accent-color:var(--c-primary)}
.form-ok{
  display:none;background:#E7F8F0;border:1px solid #B7EBD2;color:#0B6B44;
  border-radius:10px;padding:12px 16px;font-size:14px;margin-bottom:16px;
}
.form-ok.is-show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#CBD5E1;padding:72px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.f-logo .logo-mark{background:linear-gradient(135deg,#175CD3,#4F8BFF)}
.f-logo strong{display:block;color:#fff;font-size:16px;font-weight:700}
.f-logo em{font-style:normal;font-size:12px;color:var(--c-muted)}
.footer-brand p{color:#94A3B8;font-size:14px;line-height:1.85;max-width:380px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#CBD5E1;font-size:14px}
.footer-col a:hover{color:#93B4FF}
.footer-contact{color:#94A3B8;font-size:14px;line-height:1.9}
.qr-placeholder{
  width:88px;height:88px;border-radius:12px;border:1px dashed rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;font-size:28px;color:#475569;margin-top:16px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;font-size:13px;color:#7C8798;
}
.footer-bottom a{color:#CBD5E1}
.footer-bottom a:hover{color:#93B4FF}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-primary);box-shadow:var(--sh-2);display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;z-index:90;
}
.back-top.is-show{opacity:1;pointer-events:auto}
.back-top:hover{transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sp-section:64px}
  .container{padding:0 24px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .brand-actions .btn,.brand-actions .icon-btn{display:none}
  .side-tabs{position:static;margin-bottom:26px}
  .side-tabs .side-list{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:4px}
  .side-tabs .side-list::-webkit-scrollbar{display:none}
  .side-tabs a{white-space:nowrap;margin-bottom:0;flex:0 0 auto}
  .compare-band{grid-template-columns:1fr;padding:22px}
  .compare-line{display:none}
}
@media (max-width:768px){
  :root{--sp-section:48px}
  .brand-inner{min-height:60px}
  .logo-text strong{font-size:16px}
  .logo-text em{display:none}
  .page-banner{padding:40px 0 46px}
  .banner-stats{grid-template-columns:1fr;gap:14px}
  .banner-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr}
  .faq-a-inner{padding-left:0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  h1{font-size:26px}
  .banner-lead{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .brand-actions{gap:8px}
}

/* roulang page: category2 */
:root{
  --brand:#175CD3;
  --brand-deep:#0F3F9E;
  --brand-soft:#EEF3FF;
  --accent:#FF7A29;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --dark:#0B1220;
  --text:#0F172A;
  --text-body:#475569;
  --muted:#94A3B8;
  --line:#E2E8F0;
  --success:#12B76A;
  --warn:#F04438;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 2px 8px rgba(15,23,42,.06);
  --sh-2:0 12px 28px rgba(23,92,211,.12);
  --gutter:24px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text-body);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;cursor:pointer;}
table{border-collapse:collapse;}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 1px 0 #E8EEF9;}
.brand-bar{background:#fff;}
.brand-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:72px;
}
.logo{display:flex;align-items:center;gap:12px;color:var(--text);}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;
  border-radius:12px;
  background:var(--brand);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;
  box-shadow:0 6px 14px rgba(23,92,211,.24);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;color:var(--text);letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.brand-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  color:var(--text-body);
  display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  align-items:center;justify-content:center;
  font-size:17px;
}

.channel-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:48px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  flex:0 0 auto;
  font-size:15px;
  color:var(--text-body);
  padding:14px 0 13px;
  white-space:nowrap;
  border-bottom:3px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.channel-link:hover{color:var(--brand);}
.channel-link.is-active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(23,92,211,.18);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,92,211,.22);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-block{width:100%;height:48px;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-title{
  font-size:clamp(22px,2.2vw,27px);
  font-weight:700;
  color:var(--text);
  letter-spacing:-.01em;
  line-height:1.35;
}
.section-title .accent-bar{
  display:inline-block;
  width:4px;height:20px;
  border-radius:2px;
  background:var(--brand);
  margin-right:12px;
  vertical-align:-2px;
}
.section-lead{margin-top:12px;font-size:17px;color:var(--text-body);}
.mt-24{margin-top:24px;}
.mt-32{margin-top:32px;}
.mb-24{margin-bottom:24px;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
}
.tag-outline{background:#fff;border:1px solid var(--line);color:var(--text-body);}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background-image:linear-gradient(rgba(246,248,252,.92),rgba(246,248,252,.92)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,#DCE5F5,transparent);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);
  border-radius:var(--r-pill);
  padding:6px 14px;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,3.2vw,42px);
  font-weight:700;
  color:var(--text);
  letter-spacing:-.01em;
  line-height:1.25;
}
.hero-lead{margin-top:16px;font-size:17px;color:var(--text-body);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}

.board-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px;
}
.board-card h2{font-size:16px;font-weight:700;color:var(--text);}
.board-list{margin-top:18px;}
.board-list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
}
.board-list li:last-child{border-bottom:0;padding-bottom:0;}
.board-list .label{font-size:14px;color:var(--text-body);}
.board-list .value{
  font-size:22px;font-weight:700;color:var(--text);
  font-variant-numeric:tabular-nums;
}
.board-list .value small{font-size:13px;font-weight:600;color:var(--muted);margin-left:2px;}
.board-foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;
}

/* ---------- 步骤区 ---------- */
.steps-wrap{padding-top:8px;}
.step-index{
  display:none;
  position:sticky;
  top:104px;
  padding:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
.step-index h3{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;}
.step-index ol li{margin-bottom:4px;}
.step-index a{
  display:block;
  font-size:14px;
  color:var(--text-body);
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.step-index a:hover{background:var(--brand-soft);color:var(--brand);border-left-color:var(--brand);}
.step-index a span{font-variant-numeric:tabular-nums;color:var(--muted);margin-right:8px;font-size:13px;}

.step-list{position:relative;}
.step-list::before{
  content:"";
  position:absolute;
  left:56px;top:34px;bottom:34px;width:1px;
  background:repeating-linear-gradient(180deg,#DCE5F5 0 6px,transparent 6px 12px);
}
.step-card{
  position:relative;
  display:flex;
  gap:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 28px;
  margin-bottom:20px;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.step-card:last-child{margin-bottom:0;}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D7E3FB;}
.step-no{
  position:relative;z-index:1;
  flex:0 0 56px;width:56px;height:56px;
  border-radius:14px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:20px;font-weight:700;
  font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
  border:1px solid #DBE6FB;
}
.step-card.is-accent .step-no{color:var(--accent);background:#FFF3EA;border-color:#FFE0CB;}
.step-body h3{font-size:19px;font-weight:600;color:var(--text);}
.step-body p{margin-top:8px;font-size:15px;color:var(--text-body);line-height:1.85;}
.step-tip{
  margin-top:12px;
  display:inline-flex;align-items:flex-start;gap:8px;
  font-size:13px;color:var(--brand-deep);
  background:var(--brand-soft);
  border-radius:10px;
  padding:8px 14px;
}
.step-tip i{margin-top:3px;color:var(--brand);}

/* ---------- 插图区 ---------- */
.figure-block{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px;
}
.wide-figure{margin:0;}
.wide-figure img{
  width:100%;
  border-radius:var(--r-img);
  aspect-ratio:16/7;
  object-fit:cover;
  background:#EDF1F8;
}
.wide-figure figcaption{margin-top:12px;font-size:13px;color:var(--muted);}
.figure-notes{margin-top:6px;}
.figure-notes li{
  display:flex;gap:10px;
  padding:14px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text-body);
}
.figure-notes li:last-child{border-bottom:0;padding-bottom:0;}
.figure-notes i{color:var(--brand);margin-top:5px;}

/* ---------- 对比区 ---------- */
.compare-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px;
  height:100%;
}
.compare-card h3{font-size:18px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:10px;}
.compare-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--muted);}
.compare-card.is-good{border-color:#D7E3FB;}
.compare-card.is-good h3 .dot{background:var(--brand);}
.compare-row{padding:16px 0;border-bottom:1px dashed var(--line);}
.compare-row:last-child{border-bottom:0;padding-bottom:0;}
.compare-row .row-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px;}
.compare-row .row-label{font-size:14px;color:var(--text-body);}
.compare-row .row-value{font-size:18px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.bar{height:6px;border-radius:var(--r-pill);background:#EEF3FF;margin-top:10px;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,#175CD3,#4F8BFF);}
.compare-card.is-plain .bar i{background:#CBD5E1;}
.conclusion{
  margin-top:28px;
  background:var(--brand-soft);
  border-left:4px solid var(--accent);
  border-radius:0 12px 12px 0;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--brand-deep);
}
.note{margin-top:14px;font-size:13px;color:var(--muted);}

/* ---------- 卡点提醒 ---------- */
.issue-list{display:grid;gap:16px;}
.issue-item{
  display:flex;gap:16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:20px 24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.issue-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.issue-icon{
  flex:0 0 42px;width:42px;height:42px;
  border-radius:12px;
  background:#FFF3EA;
  color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.issue-item h3{font-size:17px;font-weight:600;color:var(--text);}
.issue-item p{margin-top:6px;font-size:15px;color:var(--text-body);}

/* ---------- 表单 ---------- */
.form-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:28px;
}
.point-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--text-body);}
.point-list li:last-child{border-bottom:0;padding-bottom:0;}
.point-list i{color:var(--brand);margin-top:5px;}
.contact-line{margin-top:22px;font-size:14px;color:var(--text-body);}
.contact-line strong{color:var(--text);}

.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#fff;
  color:var(--text);
  font-size:15px;
  font-family:inherit;
  padding:0 14px;
  height:44px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%2394A3B8' d='M6 8 0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(23,92,211,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--warn);}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--warn);}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-body);margin:6px 0 20px;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);}
.form-success{
  display:none;
  background:#E9F9F0;
  border:1px solid #B7EBCE;
  color:#0B7A46;
  font-size:14px;
  border-radius:10px;
  padding:12px 16px;
  margin-bottom:16px;
}
.form-success.is-show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#CBD5E1;padding:64px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.f-logo{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.f-logo .logo-mark{box-shadow:none;}
.f-logo strong{display:block;color:#fff;font-size:16px;line-height:1.3;}
.f-logo em{font-style:normal;font-size:12px;color:#7F8EA6;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB0C6;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:#CBD5E1;}
.footer-col ul a:hover{color:#93B4FF;}
.footer-contact{font-size:14px;line-height:1.9;color:#9FB0C6;}
.qr-placeholder{
  margin-top:14px;
  width:84px;height:84px;
  border-radius:12px;
  border:1px dashed #2C3A52;
  display:flex;align-items:center;justify-content:center;
  color:#54657F;font-size:26px;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid #1B2537;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7F8EA6;
}
.footer-bottom a{color:#93B4FF;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease,transform .25s ease;
  z-index:70;
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .step-index{display:block;}
}

@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}

@media (max-width:900px){
  .container{padding:0 24px;}
  .brand-inner{min-height:60px;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{
    position:fixed;
    top:60px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 16px 32px rgba(15,23,42,.08);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    z-index:55;
  }
  .channel-bar.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .channel-inner{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 24px 16px;
    min-height:auto;
    overflow:visible;
  }
  .channel-link{
    padding:14px 0;
    border-bottom:1px solid var(--line);
    font-size:15px;
  }
  .channel-link:last-child{border-bottom:0;}
  .channel-link.is-active{border-bottom-color:var(--line);}
  .channel-link.is-active::after{
    content:"";
    display:block;
    width:48px;height:3px;
    border-radius:2px;
    background:var(--brand);
    margin-top:8px;
  }
  .section{padding:64px 0;}
  .page-hero{padding:52px 0 48px;}
  .hero-lead{font-size:16px;}
}

@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .section-head{margin-bottom:24px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .step-card{flex-direction:row;padding:20px;gap:16px;}
  .step-list::before{left:42px;}
  .step-no{flex:0 0 44px;width:44px;height:44px;font-size:17px;border-radius:12px;}
  .step-body h3{font-size:17px;}
  .compare-card,.form-panel,.board-card,.issue-item{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .wide-figure img{aspect-ratio:16/9;}
}

@media (max-width:520px){
  .logo-text strong{font-size:15px;}
  .logo-text em{font-size:11px;}
  .page-hero h1{font-size:26px;}
  .section-title{font-size:21px;}
  .btn{font-size:14px;padding:0 18px;}
  .issue-item{flex-direction:column;gap:12px;}
  .to-top{right:16px;bottom:18px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}

/* roulang page: category3 */
:root{
  --brand:#175CD3;
  --brand-deep:#0F3F9E;
  --brand-light:#4F8BFF;
  --brand-soft:#EEF3FF;
  --accent:#FF7A29;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --dark:#0B1220;
  --ink:#0F172A;
  --text:#475569;
  --muted:#94A3B8;
  --line:#E2E8F0;
  --ok:#12B76A;
  --warn:#F04438;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05), 0 2px 8px rgba(15,23,42,.06);
  --sh-2:0 12px 28px rgba(23,92,211,.12);
  --sh-nav:0 1px 0 #E8EEF9;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:820px;margin-bottom:32px;}
.section-head h2{font-size:26px;line-height:1.35;}
.section-head .lead{margin-top:12px;font-size:17px;color:var(--text);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.tabular{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(23,92,211,.2);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(23,92,211,.24);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-onlight{background:#fff;color:var(--brand);border-color:rgba(255,255,255,.6);}
.btn-onlight:hover{background:rgba(255,255,255,.88);color:var(--brand-deep);}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-line-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-nav);}
.brand-bar{border-bottom:1px solid var(--line);background:#fff;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(160deg,var(--brand),var(--brand-deep));
  color:#fff;font-weight:700;font-size:20px;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text strong{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--muted);}
.brand-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:#fff;color:var(--text);cursor:pointer;display:inline-flex;
  align-items:center;justify-content:center;transition:all .18s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;font-size:16px;
}
.channel-bar{background:#fff;border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:48px;
  font-size:15px;color:var(--text);white-space:nowrap;flex:0 0 auto;font-weight:500;
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:transparent;transition:background .18s ease;
}
.channel-link:hover{color:var(--brand);}
.channel-link.is-active{color:var(--brand);font-weight:600;}
.channel-link.is-active::after{background:var(--brand);}

/* ============ Banner ============ */
.qa-banner{position:relative;overflow:hidden;background:var(--dark);}
.banner-media{position:absolute;inset:0;}
.banner-media img{width:100%;height:100%;object-fit:cover;object-position:center;opacity:.85;}
.banner-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,18,32,.92) 0%,rgba(11,18,32,.72) 46%,rgba(11,18,32,.35) 100%);
}
.banner-inner{position:relative;padding:88px 0 76px;max-width:840px;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:13px;font-weight:600;border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:20px;backdrop-filter:none;
}
.banner-inner h1{
  color:#fff;font-size:clamp(30px,3.2vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em;
}
.banner-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.9;margin-top:18px;max-width:720px;}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.banner-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;color:rgba(255,255,255,.7);font-size:13px;}
.banner-meta span{display:inline-flex;align-items:center;gap:8px;}

/* ============ 数据条 ============ */
.stats-strip{margin-top:-1px;background:var(--bg);padding:64px 0 0;}
.stats-grid{row-gap:24px;}
.stat-card{
  background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:26px 24px 24px;height:100%;transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.stat-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.stat-label{font-size:13px;color:var(--muted);letter-spacing:.02em;}
.stat-badge{
  font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:3px 10px;
  background:var(--brand-soft);color:var(--brand);
}
.stat-badge.is-green{background:#E7F8F0;color:var(--ok);}
.stat-value{font-size:34px;font-weight:700;color:var(--ink);line-height:1.15;font-variant-numeric:tabular-nums;}
.stat-value em{font-size:14px;font-style:normal;font-weight:500;color:var(--muted);margin-left:6px;}
.stat-bar{height:6px;border-radius:var(--r-pill);background:#EDF1F7;overflow:hidden;margin:16px 0 14px;}
.stat-bar span{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--brand),var(--brand-light));}
.stat-note{font-size:14px;color:var(--text);line-height:1.75;}

/* ============ 入口卡 ============ */
.entry-cards{padding:80px 0 0;}
.card-grid{row-gap:24px;}
.entry-card{
  display:block;background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);
  overflow:hidden;height:100%;transition:transform .2s ease,box-shadow .2s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF1F7;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.04);}
.entry-body{padding:22px 24px 24px;}
.entry-body h3{font-size:19px;margin-bottom:10px;}
.entry-body p{font-size:14.5px;color:var(--text);line-height:1.8;}
.entry-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:14px;font-weight:600;color:var(--brand);}
.entry-card:hover .entry-link i{transform:translateX(4px);}
.entry-link i{transition:transform .2s ease;font-size:12px;}

/* ============ FAQ ============ */
.faq-section{padding:80px 0 0;}
.faq-group + .faq-group{margin-top:44px;}
.group-title{
  display:flex;align-items:center;gap:12px;font-size:19px;margin-bottom:8px;
}
.group-title i{color:var(--brand);font-size:16px;}
.group-note{font-size:14px;color:var(--muted);margin-bottom:14px;}
.qa-list{max-width:900px;background:var(--card);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.qa-item + .qa-item{border-top:1px solid var(--line);}
.qa-h{margin:0;font-size:inherit;font-weight:600;}
.qa-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:18px 24px;background:transparent;border:0;text-align:left;cursor:pointer;
  min-height:56px;transition:background .18s ease;
}
.qa-q:hover{background:#FAFCFF;}
.qa-num{font-size:13px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;flex:0 0 32px;}
.qa-text{flex:1;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;}
.qa-icon{font-size:15px;color:var(--muted);flex:0 0 auto;transition:transform .22s ease,color .22s ease;}
.qa-item.is-open .qa-icon{transform:rotate(45deg);color:var(--brand);}
.qa-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.qa-a-inner{padding:0 24px 22px 72px;max-width:640px;font-size:15px;line-height:1.85;color:var(--text);}
.qa-a-inner p + p{margin-top:12px;}
.qa-a-inner strong{color:var(--ink);font-weight:600;}

/* ============ 核对清单 ============ */
.check-band{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:32px 32px 28px;
}
.check-band h2{font-size:22px;margin-bottom:8px;}
.check-band .lead{font-size:15px;color:var(--text);margin-bottom:20px;}
.check-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-num{
  flex:0 0 30px;height:30px;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;line-height:1.8;color:var(--text);}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-soft);border-radius:var(--r-card);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  border-left:4px solid var(--accent);
}
.cta-band h2{font-size:24px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--text);max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#CBD5E1;padding:64px 0 28px;margin-top:96px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .f-logo{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .logo-mark{background:linear-gradient(160deg,var(--brand-light),var(--brand));}
.footer-brand strong{display:block;color:#fff;font-size:17px;}
.footer-brand em{font-style:normal;font-size:12px;color:#94A3B8;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#94A3B8;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#CBD5E1;font-size:13.5px;}
.footer-col a:hover{color:#93B4FF;}
.footer-contact{font-size:13.5px;line-height:1.9;color:#94A3B8;}
.qr-placeholder{
  width:76px;height:76px;border-radius:12px;border:1px dashed rgba(148,163,184,.5);
  display:flex;align-items:center;justify-content:center;color:#64748B;font-size:26px;margin-top:16px;
}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(148,163,184,.2);margin-top:44px;padding-top:22px;
  font-size:13px;color:#94A3B8;
}
.footer-bottom a{color:#93B4FF;}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:14px;
  background:var(--brand);color:#fff;border:0;cursor:pointer;box-shadow:0 8px 20px rgba(23,92,211,.28);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .25s ease;z-index:80;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand-deep);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .banner-inner{padding:72px 0 60px;}
  .check-list{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .channel-bar.is-open{
    display:block;border-top:1px solid var(--line);
  }
  .channel-bar.is-open .channel-inner{
    flex-direction:column;align-items:stretch;height:auto;gap:0;padding:8px 24px 16px;overflow:visible;
  }
  .channel-bar.is-open .channel-link{height:46px;}
  .channel-bar.is-open .channel-link::after{display:none;}
  .stats-strip{padding:48px 0 0;}
  .entry-cards,.faq-section{padding:56px 0 0;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
}
@media screen and (max-width:768px){
  .section{padding:48px 0;}
  .container{padding:0 16px;}
  .brand-inner{height:60px;}
  .logo-text strong{font-size:15px;}
  .logo-text em{font-size:11px;}
  .banner-inner{padding:56px 0 48px;}
  .banner-sub{font-size:16px;}
  .qa-q{padding:16px;gap:12px;}
  .qa-a-inner{padding:0 16px 18px 60px;max-width:none;}
  .check-band{padding:24px 20px;}
  .check-list{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .entry-body{padding:18px 18px 20px;}
}
@media screen and (max-width:480px){
  .stat-value{font-size:30px;}
  .banner-actions .btn{width:100%;}
  .qa-text{font-size:15px;}
  .to-top{right:16px;bottom:18px;}
}