/* roulang page: index */
:root{
  --primary:#123C33;
  --primary-deep:#0E2A24;
  --primary-light:#2E7A69;
  --accent:#C4622D;
  --accent-hover:#A64E1F;
  --canvas:#F6F4EF;
  --surface:#FFFFFF;
  --surface-alt:#EFEBE2;
  --zebra:#FAF8F3;
  --ink:#1B1F1D;
  --ink-2:#5A625D;
  --ink-3:#8A908B;
  --line:#E1DCD1;
  --line-soft:#ECE7DC;
  --paper:#F6F4EF;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,36,.05);
  --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
  --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.015em;
  color:var(--ink);
  background:var(--canvas);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--primary-light);}
button{font:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media(min-width:768px){.container{padding:0 32px;}}

/* ---------- 顶部公告条 ---------- */
.announce{background:var(--primary);color:var(--paper);height:36px;display:flex;align-items:center;font-size:13px;}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.announce-text{display:inline-flex;align-items:center;gap:8px;color:rgba(246,244,239,.92);letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.announce-text i{color:#E3A47E;font-size:12px;}
.announce-link{display:inline-flex;align-items:center;gap:6px;color:var(--paper);font-size:12.5px;letter-spacing:.05em;flex:none;}
.announce-link:hover{color:#E3A47E;}
.announce-link i{font-size:10px;transition:transform .22s var(--ease);}
.announce-link:hover i{transform:translateX(3px);}
@media(max-width:639px){.announce-link{display:none;}}

/* ---------- 主导航 ---------- */
.main-nav{position:sticky;top:0;z-index:80;background:#FBFAF7;border-bottom:1px solid var(--line);transition:box-shadow .24s var(--ease);}
.main-nav.scrolled{box-shadow:0 8px 24px -16px rgba(18,60,51,.45);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:11px;flex:none;}
.logo-mark{width:40px;height:40px;border:1px solid var(--primary);border-radius:10px;display:grid;place-items:center;font-family:"Noto Serif SC","Songti SC",serif;font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.02em;background:#fff;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-family:"Noto Serif SC","Songti SC",serif;font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.01em;}
.logo-text span{font-size:11px;color:var(--ink-3);letter-spacing:.14em;margin-top:2px;}
.nav-main{display:flex;align-items:center;justify-content:flex-end;gap:20px;flex:1;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:10px 14px;font-size:15px;color:var(--ink-2);border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link:hover{color:var(--primary);background:#F1EEE6;}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.mega{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;font-size:15px;color:var(--ink-2);background:transparent;border:1px solid transparent;border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);}
.mega-trigger:hover,.mega:focus-within .mega-trigger{color:var(--primary);background:#F1EEE6;}
.mega-trigger i{font-size:10px;transition:transform .22s var(--ease);}
.mega:hover .mega-trigger i,.mega:focus-within .mega-trigger i{transform:rotate(180deg);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 14px);width:880px;
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-3);
  padding:26px;display:grid;grid-template-columns:1.15fr 1fr .95fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s var(--ease) .12s,transform .18s var(--ease) .12s,visibility .18s .12s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-title{font-size:12px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:14px;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:2px 16px;}
.mega-list a{display:block;padding:7px 0;font-size:14px;color:var(--ink-2);border-bottom:1px solid transparent;transition:color .2s var(--ease);}
.mega-list a:hover{color:var(--primary);}
.mega-news li{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line-soft);}
.mega-news li:last-child{border-bottom:none;}
.mega-news a{font-size:14px;color:var(--ink-2);line-height:1.5;}
.mega-news a:hover{color:var(--primary);}
.mega-news span{font-size:12px;color:var(--ink-3);font-variant-numeric:tabular-nums;flex:none;padding-top:2px;}
.mega-entry{background:var(--primary-deep);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:10px;}
.mega-entry p{font-size:13px;color:rgba(246,244,239,.72);letter-spacing:.1em;margin-bottom:4px;}
.mega-entry .btn{width:100%;padding:11px 16px;font-size:14px;}
.mega-entry .btn-light{background:rgba(246,244,239,.1);border:1px solid rgba(246,244,239,.34);color:var(--paper);}
.mega-entry .btn-light:hover{background:var(--paper);color:var(--primary);}
.nav-cta{padding:11px 22px;font-size:14.5px;}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--primary);font-size:16px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;line-height:1;border:1px solid transparent;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);}
.btn i{font-size:12px;transition:transform .22s var(--ease);}
.btn-primary{background:var(--primary);color:var(--paper);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary);color:var(--paper);transform:translateY(-2px);}
.btn-light{background:var(--paper);color:var(--primary);border-color:var(--paper);}
.btn-light:hover{background:#fff;color:var(--primary-deep);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:var(--paper);border-color:rgba(246,244,239,.45);}
.btn-outline-light:hover{background:var(--paper);color:var(--primary);transform:translateY(-2px);}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--primary);font-weight:500;}
.link-arrow i{font-size:11px;transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 徽章 ---------- */
.pill{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:var(--surface-alt);color:var(--primary);font-size:12px;letter-spacing:.08em;line-height:1;}
.pill-dark{background:rgba(246,244,239,.14);color:var(--paper);}
.pill-accent{background:var(--accent);color:#fff;}

/* ---------- HERO ---------- */
.hero{padding:64px 0 88px;position:relative;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center;}
.hero h1{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(34px,4.2vw,56px);line-height:1.16;letter-spacing:.01em;color:var(--primary);margin:20px 0 18px;font-weight:700;}
.hero-sub{font-size:18px;line-height:1.72;color:var(--ink-2);max-width:34em;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-metrics{display:flex;flex-wrap:wrap;}
.metric{padding:0 30px;border-left:1px solid var(--line);}
.metric:first-child{padding-left:0;border-left:none;}
.metric-num{display:block;font-size:26px;font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.25;}
.metric-label{font-size:13px;color:var(--ink-3);letter-spacing:.04em;}
.hero-visual{position:relative;padding:12px 0 12px 12px;}
.hero-frame{position:absolute;top:0;left:0;right:12px;bottom:24px;border:1px solid var(--line);border-radius:var(--radius-img);pointer-events:none;}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);position:relative;}
.voucher-card{position:absolute;right:0;bottom:-6px;width:224px;max-width:72%;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow-2);}
.voucher-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-2);line-height:1.6;}
.voucher-row b{color:var(--primary);font-variant-numeric:tabular-nums;font-weight:600;}
.voucher-div{height:1px;background:var(--line-soft);margin:9px 0;}
.voucher-foot{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--primary-light);}
@media(min-width:1024px){
  .hero{padding:84px 0 104px;}
  .hero-grid{grid-template-columns:6fr 6fr;gap:56px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(26px,2.6vw,36px);line-height:1.28;color:var(--primary);font-weight:700;}
.section-head .lead{margin-top:12px;font-size:15.5px;color:var(--ink-2);max-width:52em;}
.eyebrow{font-size:12px;letter-spacing:.18em;color:var(--accent);margin-bottom:12px;}
.divider{height:1px;background:var(--line);}

/* ---------- 权益阶梯 ---------- */
.ladder{display:grid;grid-template-columns:1fr;gap:24px;}
.ladder-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.ladder-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.ladder-num{font-family:"Noto Serif SC","Songti SC",serif;font-size:48px;line-height:1;color:transparent;-webkit-text-stroke:1px var(--line);letter-spacing:.04em;display:block;margin-bottom:18px;}
.ladder-card h3{font-size:21px;color:var(--primary);margin-bottom:8px;font-weight:600;}
.ladder-aud{margin-bottom:18px;font-size:13.5px;color:var(--ink-3);}
.ladder-list li{position:relative;padding-left:22px;font-size:15px;line-height:1.9;color:var(--ink-2);}
.ladder-list li::before{content:"";position:absolute;left:0;top:.82em;width:10px;height:10px;border-left:1.5px solid var(--primary-light);border-bottom:1.5px solid var(--primary-light);transform:rotate(-45deg) scale(.62);transform-origin:left center;}
.ladder-card .link-arrow{margin-top:22px;}
@media(min-width:960px){
  .ladder{grid-template-columns:repeat(3,1fr);}
  .ladder-card:nth-child(1){padding-bottom:24px;}
  .ladder-card:nth-child(2){margin-top:24px;}
  .ladder-card:nth-child(3){margin-top:48px;}
}

/* ---------- 套餐 ---------- */
.plans{display:grid;grid-template-columns:1fr;gap:24px;margin-bottom:40px;}
.plan-primary{position:relative;background:var(--primary-deep);color:var(--paper);border-radius:var(--radius-card);padding:34px 30px;box-shadow:var(--shadow-2);overflow:hidden;}
.plan-primary .rec{position:absolute;right:24px;top:24px;background:var(--accent);color:#fff;font-size:11.5px;letter-spacing:.1em;padding:5px 12px;border-radius:999px;}
.plan-primary h3{font-family:"Noto Serif SC","Songti SC",serif;font-size:24px;color:var(--paper);margin-bottom:8px;}
.plan-primary .plan-note{font-size:13.5px;color:rgba(246,244,239,.66);margin-bottom:24px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-bottom:26px;font-variant-numeric:tabular-nums;}
.plan-price .cur{font-size:20px;color:rgba(246,244,239,.8);}
.plan-price .num{font-size:46px;font-weight:600;line-height:1;color:var(--paper);}
.plan-price .unit{font-size:14px;color:rgba(246,244,239,.66);}
.plan-feats li{position:relative;padding-left:24px;font-size:14.5px;line-height:2;color:rgba(246,244,239,.86);}
.plan-feats li::before{content:"";position:absolute;left:0;top:.8em;width:11px;height:11px;border-left:1.6px solid #E3A47E;border-bottom:1.6px solid #E3A47E;transform:rotate(-45deg) scale(.62);transform-origin:left center;}
.plan-primary .btn{margin-top:28px;}
.plan-sub{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.plan-sub:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.plan-sub h3{font-size:19px;color:var(--primary);margin-bottom:6px;font-weight:600;}
.plan-sub .plan-note{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.plan-sub .plan-price{margin-bottom:20px;}
.plan-sub .plan-price .cur,.plan-sub .plan-price .unit{color:var(--ink-3);font-size:14px;}
.plan-sub .plan-price .num{font-size:32px;color:var(--primary);}
.plan-sub .plan-feats li{color:var(--ink-2);font-size:14px;}
.plan-sub .plan-feats li::before{border-color:var(--primary-light);}
.plan-sub .btn{margin-top:auto;}
@media(min-width:960px){
  .plans{grid-template-columns:5fr 3.5fr 3.5fr;align-items:stretch;}
}

/* ---------- 对比表 ---------- */
.table-wrap{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;}
.table-scroll{overflow-x:auto;}
.cmp{width:100%;border-collapse:collapse;min-width:640px;}
.cmp th,.cmp td{padding:0 20px;height:48px;font-size:14.5px;text-align:center;border-bottom:1px solid var(--line-soft);}
.cmp thead th{background:var(--surface-alt);color:var(--primary);font-weight:600;font-size:13.5px;letter-spacing:.06em;height:52px;}
.cmp tbody tr:nth-child(even){background:var(--zebra);}
.cmp th:first-child,.cmp td:first-child{text-align:left;color:var(--ink-2);position:sticky;left:0;background:inherit;min-width:190px;}
.cmp thead th:first-child{background:var(--surface-alt);color:var(--primary);}
.cmp tbody tr:last-child td{border-bottom:none;}
.cmp .yes{color:var(--primary-light);font-size:15px;}
.cmp .no{color:var(--ink-3);}

/* ---------- 深色横带 ---------- */
.band{background:var(--primary-deep);color:var(--paper);padding:56px 0;}
.band-inner{display:flex;flex-direction:column;gap:28px;align-items:flex-start;justify-content:space-between;}
.band h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(24px,2.4vw,32px);color:var(--paper);line-height:1.3;margin-bottom:12px;}
.band p{color:rgba(246,244,239,.76);font-size:15px;max-width:36em;}
.band-date{display:inline-flex;align-items:center;gap:10px;border:1px solid rgba(246,244,239,.3);border-radius:999px;padding:8px 18px;font-size:13px;letter-spacing:.08em;color:rgba(246,244,239,.9);font-variant-numeric:tabular-nums;margin-bottom:18px;}
.band-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}
@media(min-width:900px){
  .band-inner{flex-direction:row;align-items:center;}
}

/* ---------- 最新信息 ---------- */
.latest-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.latest-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);display:flex;flex-direction:column;}
.latest-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.latest-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.latest-cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--surface-alt);}
.latest-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.latest-card:hover .latest-cover img{transform:scale(1.03);}
.latest-badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92);color:var(--primary);font-size:12px;padding:5px 11px;border-radius:999px;line-height:1;letter-spacing:.04em;}
.latest-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.latest-title{font-size:18px;line-height:1.45;color:var(--ink);font-weight:600;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.latest-card:hover .latest-title{color:var(--primary);}
.latest-sum{font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.latest-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line-soft);padding-top:14px;}
.latest-date{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.latest-arrow{color:var(--primary);font-size:12px;transition:transform .22s var(--ease);}
.latest-card:hover .latest-arrow{transform:translateX(3px);}
.empty-state{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);color:var(--ink-3);}
.empty-state svg{width:36px;height:36px;stroke:var(--ink-3);fill:none;stroke-width:1.2;}
.empty-state p{font-size:14.5px;color:var(--ink-2);}
@media(min-width:900px){
  .latest-grid{grid-template-columns:repeat(2,1fr);}
  .latest-card:first-child{grid-column:span 2;flex-direction:row;}
  .latest-card:first-child .latest-link{flex-direction:row;}
  .latest-card:first-child .latest-cover{width:52%;flex:none;aspect-ratio:16/10;}
  .latest-card:first-child .latest-body{padding:30px 32px;justify-content:center;}
  .latest-card:first-child .latest-title{font-size:23px;-webkit-line-clamp:2;}
  .latest-card:first-child .latest-sum{-webkit-line-clamp:2;font-size:14.5px;}
}
@media(min-width:1140px){
  .latest-grid{grid-template-columns:repeat(4,1fr);}
  .latest-card:first-child{grid-column:span 2;}
}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:32px;}
.faq-side h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(24px,2.4vw,32px);color:var(--primary);line-height:1.3;margin-bottom:12px;}
.faq-side p{font-size:14.5px;color:var(--ink-2);max-width:20em;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;font-size:17px;line-height:1.5;color:var(--ink);transition:color .2s var(--ease);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);font-weight:600;}
.faq-icon{flex:none;width:20px;height:20px;position:relative;color:currentColor;transition:transform .24s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
.faq-icon::before{left:0;right:0;top:50%;height:1.5px;transform:translateY(-50%);}
.faq-icon::after{top:0;bottom:0;left:50%;width:1.5px;transform:translateX(-50%);}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{padding:0 40px 24px 0;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:64ch;}
@media(min-width:960px){
  .faq-wrap{grid-template-columns:3fr 8fr;gap:64px;}
  .faq-side{position:sticky;top:104px;align-self:start;}
}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:30px;box-shadow:var(--shadow-1);}
.field{display:block;margin-bottom:18px;}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;letter-spacing:.04em;}
.field label .req{color:var(--accent);margin-left:4px;}
.input,.select,.textarea{width:100%;height:46px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:15px;color:var(--ink);font-family:inherit;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);}
.textarea{height:auto;min-height:112px;resize:vertical;line-height:1.7;}
.input::placeholder,.textarea::placeholder{color:#A6ACA7;}
.input:focus,.select:focus,.textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(18,60,51,.10);}
.form-row{display:grid;grid-template-columns:1fr;gap:0 18px;}
@media(min-width:640px){.form-row{grid-template-columns:1fr 1fr;}}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.7;margin-bottom:20px;}
.check input{margin-top:4px;width:15px;height:15px;accent-color:var(--primary);flex:none;}
.contact-card{background:var(--primary-deep);color:var(--paper);border-radius:var(--radius-card);padding:30px;display:flex;flex-direction:column;}
.contact-card h3{font-family:"Noto Serif SC","Songti SC",serif;font-size:21px;color:var(--paper);margin-bottom:10px;}
.contact-card .tip{font-size:14px;color:rgba(246,244,239,.68);line-height:1.8;margin-bottom:24px;}
.contact-line{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-top:1px solid rgba(246,244,239,.12);}
.contact-line i{color:#E3A47E;font-size:14px;margin-top:5px;flex:none;}
.contact-line span{font-size:14px;line-height:1.7;color:rgba(246,244,239,.86);}
.contact-card .note{margin-top:auto;padding-top:20px;font-size:12.5px;color:rgba(246,244,239,.5);line-height:1.8;}
@media(min-width:960px){
  .contact-grid{grid-template-columns:8fr 4fr;gap:28px;}
  .form-card{padding:36px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:rgba(246,244,239,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-mark{border-color:rgba(246,244,239,.4);background:transparent;color:var(--paper);}
.footer-brand .logo-text b{color:var(--paper);}
.footer-brand .logo-text span{color:rgba(246,244,239,.5);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(246,244,239,.62);max-width:26em;}
.footer-col h4{font-size:13px;letter-spacing:.16em;color:rgba(246,244,239,.5);margin-bottom:16px;font-weight:500;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(246,244,239,.72);transition:color .2s var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-contact span{display:block;font-size:14px;line-height:1.8;color:rgba(246,244,239,.72);}
.footer-bottom{border-top:1px solid rgba(246,244,239,.12);padding:22px 0;display:flex;flex-direction:column;gap:12px;font-size:12.5px;color:rgba(246,244,239,.48);}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom-links a{color:rgba(246,244,239,.62);font-size:12.5px;}
.footer-bottom-links a:hover{color:#fff;}
@media(min-width:768px){
  .footer-grid{grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:32px;}
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:20px;bottom:24px;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--primary);color:var(--primary);display:grid;place-items:center;box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;z-index:60;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary);color:var(--paper);}
.to-top i{font-size:13px;}

/* ---------- 移动端导航 ---------- */
@media(max-width:1023px){
  .nav-inner{height:64px;}
  .nav-toggle{display:inline-flex;}
  .nav-main{display:none;position:absolute;left:0;right:0;top:100%;background:#FBFAF7;border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);padding:12px 24px 24px;flex-direction:column;align-items:stretch;gap:6px;max-height:calc(100vh - 100px);overflow-y:auto;}
  .nav-main.is-open{display:flex;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:13px 2px;border-bottom:1px solid var(--line-soft);border-radius:0;font-size:15.5px;}
  .nav-link.active::after{left:0;right:auto;width:22px;bottom:6px;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;margin-top:16px;}
  .mega{width:100%;}
  .mega-trigger{width:100%;justify-content:space-between;padding:13px 2px;border-radius:0;border-bottom:1px solid var(--line-soft);}
  .mega-panel{position:static;width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;border-radius:0;padding:10px 0 4px;display:none;grid-template-columns:1fr;gap:18px;}
  .mega.open .mega-panel{display:grid;}
  .mega-panel .mega-col{padding-left:12px;border-left:2px solid var(--primary);}
  .nav-cta{width:100%;}
}

@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .ladder-card:hover,.latest-card:hover,.plan-sub:hover,.btn:hover{transform:none;}
  .latest-card:hover .latest-cover img{transform:none;}
}

/* roulang page: category1 */
:root{
  --primary:#123C33;
  --primary-deep:#0E2A24;
  --primary-light:#2E7A69;
  --accent:#C4622D;
  --accent-hover:#A64E1F;
  --canvas:#F6F4EF;
  --card:#FFFFFF;
  --soft:#EFEBE2;
  --zebra:#FAF8F3;
  --ink:#1B1F1D;
  --muted:#5A625D;
  --faint:#8A908B;
  --line:#E1DCD1;
  --line-soft:#ECE7DC;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,36,.05);
  --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
  --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;line-height:1.85;letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--primary-light);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;font-weight:600;letter-spacing:.01em;color:var(--primary);}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 公告条 ---------- */
.announce{background:var(--primary);color:#F6F4EF;font-size:13.5px;}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px;}
.announce-text{display:inline-flex;align-items:center;gap:8px;letter-spacing:.02em;}
.announce-text i{color:#E8C9A8;font-size:12px;}
.announce-link{color:#F6F4EF;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;font-size:13px;}
.announce-link i{font-size:11px;transition:transform .22s var(--ease);}
.announce-link:hover{color:#FFFFFF;}
.announce-link:hover i{transform:translateX(3px);}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.main-nav{background:#FFFFFF;border-bottom:1px solid var(--line);transition:box-shadow .26s var(--ease);}
.main-nav.is-scrolled{box-shadow:0 8px 24px -16px rgba(18,60,51,.45);}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;flex:0 0 auto;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:12px;background:var(--primary);color:#F6F4EF;
  font-family:"Noto Serif SC",serif;font-size:17px;letter-spacing:.04em;font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(246,244,239,.18);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-family:"Noto Serif SC",serif;font-size:16px;color:var(--primary);letter-spacing:.02em;font-weight:600;}
.logo-text span{font-size:11.5px;color:var(--faint);letter-spacing:.12em;}
.nav-main{display:flex;align-items:center;justify-content:space-between;flex:1 1 auto;gap:24px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;
  font-size:15px;color:var(--muted);letter-spacing:.02em;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:500;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.mega{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--muted);font-size:14px;transition:all .2s var(--ease);
}
.mega-trigger i{font-size:10px;transition:transform .22s var(--ease);}
.mega-trigger:hover{border-color:var(--primary);color:var(--primary);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:880px;
  display:grid;grid-template-columns:1.15fr 1fr .95fr;gap:0;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-3);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .12s var(--ease),transform .2s var(--ease),visibility .2s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega:hover .mega-trigger i,.mega:focus-within .mega-trigger i{transform:rotate(180deg);}
.mega-col{padding:18px 20px;}
.mega-col + .mega-col{border-left:1px solid var(--line-soft);}
.mega-title{font-size:12px;letter-spacing:.16em;color:var(--faint);margin-bottom:14px;text-transform:uppercase;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:6px 14px;}
.mega-list.normal{grid-template-columns:1fr;}
.mega-list a{display:block;font-size:14px;color:var(--muted);padding:5px 0;line-height:1.5;}
.mega-list a:hover{color:var(--primary-light);}
.mega-post{display:block;padding:8px 0;border-bottom:1px solid var(--line-soft);}
.mega-post:last-child{border-bottom:0;}
.mega-post span{display:block;font-size:11.5px;color:var(--faint);letter-spacing:.04em;margin-bottom:2px;}
.mega-post strong{font-weight:400;font-size:14px;color:var(--muted);line-height:1.5;}
.mega-post:hover strong{color:var(--primary);}
.mega-card{
  background:var(--primary-deep);border-radius:12px;padding:22px 20px;color:#F6F4EF;height:100%;
  display:flex;flex-direction:column;justify-content:space-between;gap:16px;
}
.mega-card p{font-size:13.5px;line-height:1.7;color:rgba(246,244,239,.76);}
.mega-card b{display:block;font-family:"Noto Serif SC",serif;font-size:17px;color:#F6F4EF;margin-bottom:8px;font-weight:600;}
.mega-card .mega-btns{display:flex;gap:8px;flex-wrap:wrap;}
.mega-card .mega-btns a{
  flex:1 1 0;text-align:center;font-size:13px;padding:9px 8px;border-radius:var(--r-btn);
  background:#F6F4EF;color:var(--primary-deep);font-weight:500;
}
.mega-card .mega-btns a.ghost{background:transparent;border:1px solid rgba(246,244,239,.34);color:#F6F4EF;}
.mega-card .mega-btns a:hover{background:var(--accent);color:#FFFFFF;border-color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;transition:all .22s var(--ease);
}
.btn-primary{background:var(--primary);color:#F6F4EF;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-deep);color:#FFFFFF;box-shadow:var(--shadow-2);transform:translateY(-1px);}
.btn-outline{background:#FFFFFF;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary);color:#F6F4EF;}
.btn-light{background:#F6F4EF;color:var(--primary-deep);}
.btn-light:hover{background:#FFFFFF;color:var(--primary);}
.btn-ghost-light{background:transparent;border-color:rgba(246,244,239,.42);color:#F6F4EF;}
.btn-ghost-light:hover{background:#F6F4EF;color:var(--primary-deep);border-color:#F6F4EF;}
.nav-cta{padding:11px 22px;font-size:14.5px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#FFFFFF;color:var(--primary);font-size:16px;align-items:center;justify-content:center;
  margin-left:auto;
}

/* ---------- 面包屑 ---------- */
.crumb{padding:22px 0 0;}
.crumb-inner{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--faint);flex-wrap:wrap;}
.crumb-inner a{color:var(--muted);}
.crumb-inner a:hover{color:var(--primary);}
.crumb-sep{color:#C9C2B4;}

/* ---------- 横幅 ---------- */
.banner{padding:20px 0 0;}
.banner-box{
  position:relative;overflow:hidden;border-radius:var(--r-img);min-height:248px;
  display:flex;align-items:center;border:1px solid var(--line);
  background:var(--primary-deep);
}
.banner-box img.banner-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:right center;}
.banner-box::before{
  content:"";position:absolute;inset:0;width:70%;background:var(--primary);z-index:1;
}
.banner-content{position:relative;z-index:2;padding:42px 48px;max-width:660px;color:#F6F4EF;}
.banner-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  background:rgba(246,244,239,.14);color:#F6F4EF;font-size:12px;letter-spacing:.08em;margin-bottom:18px;
}
.banner-badge i{color:#E8C9A8;font-size:11px;}
.banner-content h1{
  color:#F6F4EF;font-size:clamp(26px,3.2vw,40px);line-height:1.22;margin-bottom:14px;
}
.banner-content p{font-size:15px;line-height:1.8;color:rgba(246,244,239,.82);max-width:520px;}
.banner-meta{display:flex;gap:24px;margin-top:22px;flex-wrap:wrap;}
.banner-meta span{font-size:13px;color:rgba(246,244,239,.68);display:inline-flex;align-items:center;gap:7px;}
.banner-meta i{font-size:11px;color:#E8C9A8;}

/* ---------- 主体布局 ---------- */
.section{padding:64px 0;}
.section-tight{padding:56px 0;}
.layout{display:grid;grid-template-columns:3fr 9fr;gap:32px;align-items:start;}
.toc{
  position:sticky;top:100px;background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);
}
.toc h2{font-size:15px;letter-spacing:.04em;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.toc h2 i{font-size:12px;color:var(--accent);}
.toc ol{display:flex;flex-direction:column;gap:2px;}
.toc a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;
  font-size:14px;color:var(--muted);border-left:2px solid transparent;transition:all .2s var(--ease);
}
.toc a:hover{background:var(--soft);color:var(--primary);border-left-color:var(--primary);}
.toc a b{font-family:"Noto Serif SC",serif;font-size:12px;color:var(--faint);font-weight:600;}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);font-size:13px;color:var(--faint);line-height:1.75;}
.section-head{margin-bottom:28px;}
.section-head h2{font-size:clamp(22px,2.3vw,28px);line-height:1.35;margin-bottom:10px;}
.section-head p{font-size:15px;color:var(--muted);max-width:640px;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--accent);margin-bottom:12px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--accent);}
.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.g-card{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  display:flex;flex-direction:column;
}
.g-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6D0C2;}
.g-card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--soft);}
.g-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.g-card:hover .g-card-media img{transform:scale(1.03);}
.g-badge{
  position:absolute;top:12px;left:12px;padding:5px 11px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--primary);font-size:12px;letter-spacing:.04em;
}
.g-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.g-card-body h3{font-size:18px;line-height:1.45;}
.g-card-body p{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.g-card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line-soft);
}
.g-card-foot span{font-size:13px;color:var(--faint);font-variant-numeric:tabular-nums;}
.g-card-foot i{font-size:13px;color:var(--primary);transition:transform .22s var(--ease);}
.g-card:hover .g-card-foot i{transform:translateX(3px);}

/* ---------- 流程 ---------- */
.flow-wrap{background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);padding:36px 32px;box-shadow:var(--shadow-1);}
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:8px;}
.flow-item{position:relative;padding:0 18px 0 0;}
.flow-item::before{
  content:"";position:absolute;top:17px;left:34px;right:-2px;height:1px;background:var(--line);
}
.flow-item:last-child::before{display:none;}
.flow-dot{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--primary);
  display:flex;align-items:center;justify-content:center;background:#FFFFFF;
  font-family:"Noto Serif SC",serif;font-size:13px;color:var(--primary);
  position:relative;z-index:1;margin-bottom:16px;
}
.flow-item h3{font-size:16px;margin-bottom:8px;}
.flow-item p{font-size:13.5px;line-height:1.75;color:var(--muted);}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:18px;align-items:flex-start;background:var(--soft);
  border-radius:var(--r-card);padding:24px 26px;border:1px solid #E5DFD2;
}
.notice i{font-size:18px;color:var(--accent);margin-top:4px;}
.notice h3{font-size:16px;margin-bottom:6px;}
.notice p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ---------- 全宽深色 CTA 带 ---------- */
.cta-band{background:var(--primary-deep);color:#F6F4EF;padding:52px 0;}
.cta-band-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#F6F4EF;font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:rgba(246,244,239,.72);max-width:560px;}
.cta-band-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 返回链接条 ---------- */
.back-bar{padding:36px 0 0;}
.back-bar-inner{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.back-bar-inner p{font-size:14px;color:var(--muted);}
.back-links{display:flex;gap:22px;flex-wrap:wrap;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:var(--primary);}
.text-link i{font-size:12px;transition:transform .22s var(--ease);}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:rgba(246,244,239,.72);margin-top:96px;padding:72px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-mark{background:rgba(246,244,239,.12);box-shadow:inset 0 0 0 1px rgba(246,244,239,.2);}
.footer-brand .logo-text b{color:#F6F4EF;}
.footer-brand .logo-text span{color:rgba(246,244,239,.5);}
.footer-brand p{font-size:13.5px;line-height:1.85;max-width:290px;}
.footer-col h4{color:#F6F4EF;font-size:14px;letter-spacing:.06em;margin-bottom:16px;font-family:"Noto Sans SC",sans-serif;font-weight:500;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(246,244,239,.72);font-size:13.5px;}
.footer-col a:hover{color:#FFFFFF;}
.footer-contact span{display:block;font-size:13.5px;line-height:1.9;}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(246,244,239,.55);
}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(246,244,239,.6);font-size:12.5px;}
.footer-bottom-links a:hover{color:#FFFFFF;}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--primary);background:#FFFFFF;color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transition:all .24s var(--ease);z-index:70;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--primary);color:#F6F4EF;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .layout{grid-template-columns:1fr;}
  .toc{position:static;}
  .mega-panel{width:720px;grid-template-columns:1fr 1fr;}
  .mega-card{grid-column:1 / -1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow{grid-template-columns:1fr 1fr;row-gap:28px;}
  .flow-item:nth-child(2)::before{display:none;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .nav-main{
    position:absolute;left:0;right:0;top:100%;background:#FFFFFF;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 24px;
    display:none;
  }
  .nav-main.open{display:flex;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{height:auto;padding:14px 0;border-bottom:1px solid var(--line-soft);}
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--primary);font-weight:600;}
  .nav-link.active::before{content:"";display:inline-block;width:2px;height:14px;background:var(--primary);margin-right:10px;vertical-align:-2px;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;padding-top:16px;}
  .mega{width:100%;}
  .mega-trigger{width:100%;justify-content:space-between;height:46px;}
  .mega-panel{
    position:static;width:100%;transform:none;opacity:1;visibility:visible;display:none;
    box-shadow:none;border-radius:10px;margin-top:10px;padding:6px;
  }
  .mega.open .mega-panel{display:grid;}
  .mega-panel{grid-template-columns:1fr;}
  .mega-col + .mega-col{border-left:0;border-top:1px solid var(--line-soft);}
  .mega-col{padding-left:12px;border-left:2px solid var(--primary);}
  .mega-card{border-left:0;}
  .nav-cta{width:100%;height:46px;}
  .banner-content{padding:32px 26px;}
  .banner-box::before{width:100%;background:rgba(18,60,51,.94);}
  .card-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .flow-item::before{display:none;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .announce-text{font-size:12.5px;}
  .announce-link{display:none;}
  .nav-inner{min-height:64px;gap:12px;}
  .logo-mark{width:40px;height:40px;font-size:15px;border-radius:10px;}
  .logo-text b{font-size:14.5px;}
  .logo-text span{font-size:10.5px;letter-spacing:.08em;}
  .section,.section-tight{padding:44px 0;}
  .banner-box{min-height:200px;}
  .banner-content{padding:26px 20px;}
  .banner-box img.banner-img{object-position:right center;opacity:.55;}
  .banner-meta{gap:14px;}
  .flow-wrap{padding:24px 20px;}
  .back-bar-inner{padding:18px 20px;}
  .cta-band{padding:40px 0;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 0;margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition-duration:.01ms !important;}
  .g-card:hover,.btn:hover{transform:none !important;}
  .g-card:hover .g-card-media img{transform:none !important;}
}

/* roulang page: article */
:root{
  --primary:#123C33;
  --primary-dark:#0E2A24;
  --primary-light:#2E7A69;
  --accent:#C4622D;
  --accent-hover:#A64E1F;
  --canvas:#F6F4EF;
  --card:#FFFFFF;
  --soft:#EFEBE2;
  --zebra:#FAF8F3;
  --paper:#FBF9F5;
  --ink:#1B1F1D;
  --ink-2:#5A625D;
  --ink-3:#8A908B;
  --line:#E1DCD1;
  --line-soft:#ECE7DC;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,36,.05);
  --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
  --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--canvas);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--primary-light);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:14.5px;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1024px){.container{padding:0 32px;}}
.serif{font-family:var(--serif);letter-spacing:.01em;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部公告 ---------- */
.announce{background:var(--primary);color:#F6F4EF;}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;padding-top:6px;padding-bottom:6px;font-size:13px;}
.announce-text{display:inline-flex;align-items:center;gap:8px;color:rgba(246,244,239,.92);}
.announce-text i{font-size:12px;color:#E9C9B4;}
.announce-link{display:inline-flex;align-items:center;gap:6px;color:#F6F4EF;font-size:12.5px;letter-spacing:.04em;opacity:.9;white-space:nowrap;}
.announce-link:hover{color:#fff;opacity:1;}
.announce-link i{font-size:10px;transition:transform .22s var(--ease);}
.announce-link:hover i{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.main-nav{background:var(--paper);border-bottom:1px solid var(--line);position:relative;transition:box-shadow .24s var(--ease);}
.main-nav.is-stuck{box-shadow:0 8px 24px -16px rgba(18,60,51,.45);}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:44px;height:44px;border-radius:10px;background:var(--primary);color:#F6F4EF;display:grid;place-items:center;font-weight:700;font-size:15px;letter-spacing:.02em;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.02em;}
.logo-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:.1em;}
.nav-main{display:flex;align-items:center;justify-content:flex-end;gap:24px;flex:1;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{position:relative;padding:9px 14px;font-size:15px;color:var(--ink-2);border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link:hover{color:var(--primary);background:var(--soft);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;background:var(--accent);border-radius:2px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:14.5px;font-weight:500;border:1px solid transparent;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);}
.btn-primary{background:var(--primary);color:#F6F4EF;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:var(--shadow-2);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary);color:#F6F4EF;}
.btn-sm{padding:9px 18px;font-size:13.5px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--primary);}
.link-arrow i{font-size:11px;transition:transform .22s var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--primary);align-items:center;justify-content:center;font-size:16px;}

/* ---------- Mega ---------- */
.mega{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-2);font-size:14px;transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);}
.mega-trigger:hover{color:var(--primary);border-color:#CFC9BB;background:var(--soft);}
.mega-trigger i{font-size:10px;transition:transform .22s var(--ease);}
.mega.open .mega-trigger i{transform:rotate(180deg);}
.mega-panel{position:absolute;right:0;top:calc(100% + 14px);width:880px;max-width:calc(100vw - 48px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-3);padding:26px;display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);transition-delay:.12s;}
.mega-title{font-size:12px;letter-spacing:.14em;color:var(--ink-3);margin-bottom:14px;text-transform:uppercase;}
.mega-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 14px;}
.mega-list a{font-size:14px;color:var(--ink-2);display:block;padding:4px 0;border-bottom:1px solid transparent;}
.mega-list a:hover{color:var(--primary);border-bottom-color:var(--line);}
.mega-post{display:block;padding:10px 0;border-bottom:1px solid var(--line-soft);}
.mega-post:last-child{border-bottom:0;}
.mega-post b{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:4px;line-height:1.5;}
.mega-post:hover b{color:var(--primary);}
.mega-post span{font-size:12px;color:var(--ink-3);}
.mega-cta{background:var(--primary-dark);border-radius:14px;padding:22px;color:#F6F4EF;display:flex;flex-direction:column;gap:12px;}
.mega-cta p{font-size:13px;line-height:1.7;color:rgba(246,244,239,.75);}
.mega-cta strong{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.02em;}
.mega-cta .btn{width:100%;padding:10px 14px;font-size:13.5px;}
.mega-cta .btn-primary{background:#F6F4EF;color:var(--primary-dark);}
.mega-cta .btn-primary:hover{background:#fff;color:var(--primary-dark);}
.mega-cta .btn-outline{background:transparent;color:#F6F4EF;border-color:rgba(246,244,239,.4);}
.mega-cta .btn-outline:hover{background:rgba(246,244,239,.12);color:#fff;border-color:rgba(246,244,239,.7);}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:26px 0 0;}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C3BDB1;}
.crumb .current{color:var(--ink-2);max-width:min(560px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头 ---------- */
.article-head{padding:28px 0 36px;border-bottom:1px solid var(--line);margin-bottom:44px;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--soft);color:var(--primary);font-size:12px;font-weight:500;letter-spacing:.04em;}
.badge-accent{background:rgba(196,98,45,.12);color:var(--accent-hover);}
.article-title{font-family:var(--serif);font-size:clamp(28px,3.4vw,42px);line-height:1.28;font-weight:700;color:var(--ink);margin:18px 0 0;letter-spacing:.01em;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 0;margin-top:20px;font-size:13px;color:var(--ink-3);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;padding:0 14px;border-left:1px solid var(--line);}
.article-meta span:first-child{padding-left:0;border-left:0;}
.article-meta i{font-size:11px;color:#B5B0A5;}

/* ---------- 正文布局 ---------- */
.article-layout{display:grid;grid-template-columns:8fr 4fr;gap:44px;align-items:start;}
@media (max-width:1023px){.article-layout{grid-template-columns:1fr;gap:40px;}}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:38px 40px;box-shadow:var(--shadow-1);font-size:16.5px;line-height:1.9;color:var(--ink);letter-spacing:.015em;overflow-wrap:break-word;}
@media (max-width:640px){.article-body{padding:26px 20px;font-size:16px;}}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;max-width:72ch;}
.article-body h2{font-family:var(--serif);font-size:24px;line-height:1.4;color:var(--ink);margin:48px 0 16px;padding-left:14px;border-left:3px solid var(--primary);letter-spacing:.01em;}
.article-body h3{font-size:19px;font-weight:700;color:var(--ink);margin:34px 0 12px;line-height:1.5;}
.article-body h4{font-size:16.5px;font-weight:700;color:var(--primary);margin:26px 0 10px;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(18,60,51,.25);}
.article-body a:hover{color:var(--primary-light);border-bottom-color:var(--primary-light);}
.article-body ul,.article-body ol{list-style:none;margin:0 0 1.4em;padding:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:10px;}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;background:var(--primary);border-radius:1px;}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{content:counter(item) ".";position:absolute;left:0;top:0;color:var(--primary);font-weight:700;font-size:14px;}
.article-body blockquote{margin:0 0 1.5em;background:var(--soft);border-left:3px solid var(--primary);border-radius:0 12px 12px 0;padding:20px 24px;color:var(--ink-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0;max-width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);margin-top:10px;text-align:center;}
.article-body code{background:#F1EEE7;border-radius:6px;padding:2px 6px;font-family:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#33443D;}
.article-body pre{background:#F1EEE7;border:1px solid var(--line-soft);border-radius:12px;padding:18px 20px;overflow-x:auto;margin:0 0 1.5em;}
.article-body pre code{background:transparent;padding:0;font-size:12.5px;line-height:1.8;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 1.5em;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:14.5px;}
.article-body thead th{background:var(--soft);color:var(--primary);font-weight:600;text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line-soft);color:var(--ink-2);}
.article-body tbody tr:nth-child(even){background:var(--zebra);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.article-empty{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:64px 32px;text-align:center;box-shadow:var(--shadow-1);}
.article-empty .empty-icon{width:56px;height:56px;border:1px solid var(--line);border-radius:14px;display:grid;place-items:center;margin:0 auto 18px;color:var(--primary);font-size:20px;background:var(--zebra);}
.article-empty h2{font-family:var(--serif);font-size:22px;color:var(--ink);margin-bottom:10px;}
.article-empty p{font-size:14.5px;color:var(--ink-3);margin-bottom:24px;}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;}
@media (min-width:1024px){.sidebar{position:sticky;top:96px;}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);}
.side-title{font-size:12px;letter-spacing:.14em;color:var(--ink-3);margin-bottom:14px;}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;font-size:14px;color:var(--ink-2);padding:7px 0 7px 12px;border-left:2px solid transparent;line-height:1.6;}
.toc-list a:hover{color:var(--primary);border-left-color:var(--accent);background:var(--zebra);}
.side-dark{background:var(--primary-dark);border-color:var(--primary-dark);color:#F6F4EF;}
.side-dark .side-title{color:rgba(246,244,239,.6);}
.side-dark strong{display:block;font-family:var(--serif);font-size:18px;line-height:1.5;margin-bottom:10px;letter-spacing:.02em;}
.side-dark p{font-size:13.5px;line-height:1.8;color:rgba(246,244,239,.72);margin-bottom:18px;}
.side-dark .btn{width:100%;padding:11px 14px;font-size:13.5px;margin-bottom:10px;}
.side-dark .btn-primary{background:#F6F4EF;color:var(--primary-dark);}
.side-dark .btn-primary:hover{background:#fff;color:var(--primary-dark);}
.side-dark .btn-outline{background:transparent;border-color:rgba(246,244,239,.4);color:#F6F4EF;}
.side-dark .btn-outline:hover{background:rgba(246,244,239,.12);border-color:rgba(246,244,239,.7);color:#fff;}
.side-link{display:block;padding:12px 0;border-bottom:1px solid var(--line-soft);}
.side-link:last-child{border-bottom:0;padding-bottom:0;}
.side-link b{display:block;font-size:14.5px;font-weight:500;color:var(--ink);line-height:1.55;margin-bottom:4px;}
.side-link:hover b{color:var(--primary);}
.side-link span{font-size:12.5px;color:var(--ink-3);line-height:1.6;display:block;}

/* ---------- 相关推荐 ---------- */
.section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-family:var(--serif);font-size:clamp(24px,2.4vw,32px);line-height:1.3;color:var(--ink);}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px;}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:900px){.post-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:640px){.post-grid{grid-template-columns:1fr;}}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:transform .24s var(--ease),box-shadow .24s var(--ease);}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft);}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.03);}
.post-tag{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--primary);font-size:12px;padding:4px 10px;border-radius:999px;letter-spacing:.04em;}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--ink);margin-bottom:10px;}
.post-card:hover .post-body h3{color:var(--primary);}
.post-body p{font-size:13.5px;line-height:1.75;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--ink-3);border-top:1px solid var(--line-soft);padding-top:14px;}
.post-foot i{color:var(--primary);font-size:12px;transition:transform .22s var(--ease);}
.post-card:hover .post-foot i{transform:translateX(3px);}

/* ---------- 上下篇 ---------- */
.pager{display:flex;justify-content:space-between;gap:20px;margin-top:56px;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap;}
.pager-item{display:flex;flex-direction:column;gap:4px;max-width:48%;}
.pager-item.pager-right{text-align:right;margin-left:auto;align-items:flex-end;}
.pager-label{font-size:12px;letter-spacing:.12em;color:var(--ink-3);}
.pager-title{font-size:15px;color:var(--ink);font-weight:500;}
.pager-item:hover .pager-title{color:var(--primary);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-dark);color:rgba(246,244,239,.72);padding:72px 0 0;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-mark{background:rgba(246,244,239,.14);color:#F6F4EF;}
.footer-brand .logo-text b{color:#F6F4EF;}
.footer-brand .logo-text span{color:rgba(246,244,239,.5);}
.footer-brand p{margin-top:18px;font-size:13.5px;line-height:1.85;color:rgba(246,244,239,.66);max-width:300px;}
.footer-col h4{font-size:13px;letter-spacing:.12em;color:#F6F4EF;margin-bottom:18px;font-weight:600;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(246,244,239,.72);}
.footer-col a:hover{color:#fff;}
.footer-contact span{display:block;font-size:13.5px;line-height:1.8;margin-bottom:10px;color:rgba(246,244,239,.72);}
.footer-bottom{border-top:1px solid rgba(246,244,239,.12);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(246,244,239,.55);}
.footer-bottom-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom-links a{color:rgba(246,244,239,.62);}
.footer-bottom-links a:hover{color:#fff;}

/* ---------- 回到顶部 ---------- */
.to-top{position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--primary);color:var(--primary);display:grid;place-items:center;font-size:14px;box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;z-index:70;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--primary);color:#F6F4EF;}

/* ---------- 响应式导航 ---------- */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-inner{height:64px;gap:14px;}
  .logo-mark{width:40px;height:40px;font-size:14px;}
  .logo-text b{font-size:14px;}
  .logo-text span{font-size:10.5px;letter-spacing:.06em;}
  .nav-main{position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);flex-direction:column;align-items:stretch;padding:10px 24px 22px;gap:14px;display:none;}
  .nav-main.open{display:flex;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:13px 10px;border-bottom:1px solid var(--line-soft);border-radius:0;font-size:15px;}
  .nav-link.active::after{display:none;}
  .nav-link.active{border-left:2px solid var(--primary);padding-left:14px;background:var(--soft);}
  .nav-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .mega{width:100%;}
  .mega-trigger{width:100%;justify-content:space-between;padding:12px 14px;}
  .mega-panel{position:static;width:100%;max-width:none;display:none;opacity:1;visibility:visible;transform:none;box-shadow:none;border-radius:12px;padding:16px;grid-template-columns:1fr;gap:18px;margin-top:10px;background:var(--zebra);}
  .mega.open .mega-panel{display:grid;}
  .mega-list{grid-template-columns:1fr;}
  .nav-actions .btn{width:100%;min-height:46px;}
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .announce-text span{display:none;}
  .article-head{padding:22px 0 26px;margin-bottom:32px;}
  .article-meta span{padding:0 10px;font-size:12.5px;}
  .crumb .current{max-width:44vw;}
  .section{padding-top:56px;}
  .pager{flex-direction:column;}
  .pager-item,.pager-item.pager-right{max-width:100%;text-align:left;align-items:flex-start;margin-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .post-card:hover{transform:none;}
  .post-card:hover .post-cover img{transform:none;}
}

/* roulang page: category3 */
:root{
    --primary:#123C33;
    --primary-deep:#0E2A24;
    --primary-light:#2E7A69;
    --accent:#C4622D;
    --accent-hover:#A64E1F;
    --canvas:#F6F4EF;
    --card:#FFFFFF;
    --soft:#EFEBE2;
    --zebra:#FAF8F3;
    --text:#1B1F1D;
    --muted:#5A625D;
    --faint:#8A908B;
    --line:#E1DCD1;
    --hair:#ECE7DC;
    --paper:#F6F4EF;
    --radius-card:14px;
    --radius-img:16px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(18,42,36,.05);
    --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
    --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
    --ease:cubic-bezier(.22,.61,.36,1);
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    --font-sans:"Noto Sans SC",system-ui,-apple-system,"PingFang SC",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16.5px;
    line-height:1.85;
    color:var(--text);
    background:var(--canvas);
    letter-spacing:.015em;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
  a:hover{color:var(--primary-light);}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  @media (min-width:1024px){.container{padding:0 32px;}}

  /* ============ 公告条 ============ */
  .site-header{position:relative;z-index:60;}
  .announce{background:var(--primary);color:var(--paper);}
  .announce-inner{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:36px;padding-top:6px;padding-bottom:6px;
    font-size:13.5px;line-height:1.5;
  }
  .announce-text{display:flex;align-items:center;gap:8px;color:rgba(246,244,239,.92);}
  .announce-text i{font-size:12px;color:var(--paper);opacity:.85;}
  .announce-link{
    display:inline-flex;align-items:center;gap:6px;color:rgba(246,244,239,.78);
    white-space:nowrap;font-size:13px;border-bottom:1px solid transparent;
  }
  .announce-link:hover{color:#fff;border-bottom-color:rgba(246,244,239,.5);}
  .announce-link i{font-size:11px;transition:transform .22s var(--ease);}
  .announce-link:hover i{transform:translateX(3px);}

  /* ============ 主导航 ============ */
  .main-nav{
    position:sticky;top:0;z-index:55;
    background:#FBFAF7;
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s var(--ease);
  }
  .main-nav.is-scrolled{box-shadow:0 8px 24px -16px rgba(18,60,51,.35);}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}

  .logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
  .logo-mark{
    font-family:var(--font-serif);font-weight:700;font-size:26px;line-height:1;
    color:var(--primary);letter-spacing:.02em;padding-right:12px;
    border-right:1px solid var(--line);
  }
  .logo-text{display:flex;flex-direction:column;line-height:1.25;}
  .logo-text b{font-size:14.5px;font-weight:700;color:var(--primary);letter-spacing:.01em;}
  .logo-text span{font-size:11.5px;color:var(--faint);letter-spacing:.08em;}

  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:var(--radius-btn);
    border:1px solid var(--line);background:#fff;color:var(--primary);
    cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease);
  }
  .nav-toggle:hover{background:var(--soft);}

  .nav-main{display:flex;align-items:center;gap:32px;flex:1;justify-content:space-between;}
  .nav-links{display:flex;align-items:center;gap:26px;}
  .nav-link{
    position:relative;display:inline-block;padding:24px 0;
    font-size:15px;font-weight:500;color:var(--muted);
    transition:color .2s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
    background:var(--accent);border-radius:2px;
    transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--primary);font-weight:700;}
  .nav-link.active::after{transform:scaleX(1);}

  .nav-actions{display:flex;align-items:center;gap:14px;}

  .mega{position:relative;}
  .mega-trigger{
    display:inline-flex;align-items:center;gap:6px;
    height:40px;padding:0 14px;border-radius:var(--radius-btn);
    border:1px solid transparent;background:transparent;color:var(--muted);
    font-size:14.5px;font-weight:500;cursor:pointer;
    transition:color .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease);
  }
  .mega-trigger:hover,.mega-trigger[aria-expanded="true"]{
    color:var(--primary);background:var(--soft);border-color:var(--line);
  }
  .mega-trigger i{font-size:11px;transition:transform .24s var(--ease);}
  .mega:hover .mega-trigger i,.mega-trigger[aria-expanded="true"] i{transform:rotate(180deg);}

  .mega-panel{
    position:absolute;top:calc(100% + 12px);right:0;width:880px;
    display:grid;grid-template-columns:1.5fr 1fr 1.1fr;gap:0;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--shadow-3);
    padding:8px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .18s var(--ease) .12s,transform .18s var(--ease) .12s,visibility .18s .12s;
  }
  .mega:hover .mega-panel,.mega:focus-within .mega-panel,
  .mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .mega-col{padding:18px 20px;}
  .mega-col + .mega-col{border-left:1px solid var(--hair);}
  .mega-title{
    margin:0 0 12px;font-size:12px;font-weight:700;letter-spacing:.14em;
    color:var(--faint);text-transform:uppercase;
  }
  .mega-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:2px 14px;}
  .mega-list li a{
    display:block;padding:7px 0;font-size:13.5px;color:var(--muted);
    transition:color .2s var(--ease),padding-left .2s var(--ease);
  }
  .mega-list li a:hover{color:var(--primary);padding-left:4px;}
  .mega-news{list-style:none;margin:0;padding:0;}
  .mega-news li + li{margin-top:14px;}
  .mega-news a{display:block;font-size:13.5px;color:var(--text);line-height:1.5;}
  .mega-news a:hover{color:var(--primary-light);}
  .mega-news time{display:block;margin-top:3px;font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums;}
  .mega-cta{
    margin:0;padding:22px 20px;border-radius:12px;background:var(--primary);color:var(--paper);
  }
  .mega-cta h4{margin:0 0 6px;font-family:var(--font-serif);font-size:16px;color:#fff;}
  .mega-cta p{margin:0 0 14px;font-size:12.5px;line-height:1.7;color:rgba(246,244,239,.72);}
  .mega-cta .btn{width:100%;justify-content:center;margin-bottom:8px;}
  .mega-cta .btn:last-child{margin-bottom:0;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:13px 26px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:500;line-height:1.2;
    border:1px solid transparent;cursor:pointer;
    transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .btn i{font-size:12px;transition:transform .22s var(--ease);}
  .btn:hover i{transform:translateX(3px);}
  .btn-primary{background:var(--primary);color:var(--paper);border-color:var(--primary);}
  .btn-primary:hover{background:#0B2E27;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);}
  .btn-ghost:hover{background:var(--primary);color:var(--paper);}
  .btn-paper{background:var(--paper);color:var(--primary);border-color:var(--paper);}
  .btn-paper:hover{background:#fff;color:var(--primary-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
  .btn-line-paper{background:transparent;color:var(--paper);border-color:rgba(246,244,239,.55);}
  .btn-line-paper:hover{background:var(--paper);color:var(--primary);border-color:var(--paper);}
  .btn-sm{padding:10px 18px;font-size:13.5px;}

  .link-arrow{
    display:inline-flex;align-items:center;gap:7px;
    font-size:14px;font-weight:500;color:var(--primary);
  }
  .link-arrow i{font-size:11px;transition:transform .22s var(--ease);}
  .link-arrow:hover i{transform:translateX(3px);}

  /* ============ 分类横幅 ============ */
  .page-banner{position:relative;overflow:hidden;background:var(--primary-deep);}
  .banner-media{position:absolute;inset:0;}
  .banner-media img{width:100%;height:100%;object-fit:cover;object-position:72% center;}
  .banner-veil{
    position:absolute;inset:0 auto 0 0;width:72%;
    background:var(--primary);
  }
  .banner-inner{
    position:relative;z-index:2;
    padding:64px 0 56px;
    max-width:720px;
  }
  .crumb{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;color:rgba(246,244,239,.66);margin-bottom:18px;
  }
  .crumb a{color:rgba(246,244,239,.66);}
  .crumb a:hover{color:#fff;}
  .crumb .sep{opacity:.5;}
  .banner-inner h1{
    margin:0 0 16px;
    font-family:var(--font-serif);
    font-size:clamp(30px,3.6vw,46px);
    line-height:1.2;
    color:var(--paper);
    letter-spacing:.01em;
  }
  .banner-inner p{
    margin:0 0 24px;max-width:34em;
    font-size:16px;line-height:1.85;color:rgba(246,244,239,.82);
  }
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:999px;
    font-size:12px;line-height:1.4;
    background:rgba(246,244,239,.14);color:rgba(246,244,239,.94);
    border:1px solid rgba(246,244,239,.16);
  }
  .banner-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ============ 通用板块 ============ */
  .section{padding:88px 0;}
  .section-tight{padding:64px 0;}
  .section-head{max-width:660px;margin-bottom:44px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:700;letter-spacing:.16em;
    color:var(--accent);text-transform:uppercase;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}
  .section-head h2{
    margin:0 0 14px;
    font-family:var(--font-serif);
    font-size:clamp(24px,2.4vw,34px);
    line-height:1.3;color:var(--primary);
  }
  .section-head p{margin:0;font-size:15.5px;color:var(--muted);line-height:1.85;}

  /* ============ 概览清单 ============ */
  .checklist{
    display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  }
  .check-item{
    position:relative;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-card);padding:28px 26px;box-shadow:var(--shadow-1);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease);
  }
  .check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
  .check-num{
    font-family:var(--font-serif);font-size:46px;line-height:1;
    color:transparent;-webkit-text-stroke:1px var(--line);
    margin-bottom:14px;font-variant-numeric:tabular-nums;
  }
  .check-item h3{
    margin:0 0 8px;font-size:17.5px;font-weight:700;color:var(--primary);
  }
  .check-item p{margin:0;font-size:14.5px;line-height:1.8;color:var(--muted);}

  /* ============ 图文交替 ============ */
  .zigzag{display:flex;flex-direction:column;gap:72px;}
  .zig{
    display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  }
  .zig-media{
    position:relative;border-radius:var(--radius-img);overflow:hidden;
    aspect-ratio:4/3;border:1px solid var(--line);background:var(--soft);
    box-shadow:var(--shadow-1);
  }
  .zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
  .zig:hover .zig-media img{transform:scale(1.03);}
  .zig.reverse .zig-media{order:2;}
  .zig-body h3{
    margin:0 0 14px;font-family:var(--font-serif);
    font-size:clamp(20px,2vw,25px);line-height:1.4;color:var(--primary);
  }
  .zig-body .zig-label{
    display:inline-block;margin-bottom:12px;padding:5px 12px;border-radius:999px;
    background:var(--soft);color:var(--primary);font-size:12px;font-weight:500;
  }
  .zig-body p{margin:0 0 18px;font-size:15.5px;line-height:1.9;color:var(--muted);}
  .zig-points{list-style:none;margin:0 0 22px;padding:0;}
  .zig-points li{
    position:relative;padding-left:20px;margin-bottom:8px;
    font-size:14.5px;color:var(--text);
  }
  .zig-points li::before{
    content:"";position:absolute;left:0;top:11px;
    width:6px;height:6px;background:var(--primary);border-radius:1px;
  }

  /* ============ 特性小卡 2x2 ============ */
  .feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
  .feature-card{
    display:flex;gap:16px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px 24px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .feature-card:hover{border-color:#CFC7B6;box-shadow:var(--shadow-1);}
  .feature-icon{
    flex-shrink:0;width:44px;height:44px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);color:var(--primary);font-size:16px;
    background:var(--zebra);
  }
  .feature-card h4{margin:0 0 6px;font-size:16px;font-weight:700;color:var(--primary);}
  .feature-card p{margin:0;font-size:14px;line-height:1.75;color:var(--muted);}

  /* ============ 步骤条 ============ */
  .steps-wrap{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:40px 36px;box-shadow:var(--shadow-1);
  }
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;}
  .step{position:relative;padding-right:24px;}
  .step::before{
    content:"";position:absolute;top:15px;left:32px;right:0;height:1px;
    background:var(--hair);
  }
  .step:last-child::before{display:none;}
  .step-dot{
    position:relative;z-index:2;
    width:30px;height:30px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:var(--primary);color:var(--paper);
    font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
    margin-bottom:16px;
  }
  .step h4{margin:0 0 6px;font-size:15.5px;font-weight:700;color:var(--primary);}
  .step p{margin:0;font-size:14px;line-height:1.75;color:var(--muted);}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:3fr 7fr;gap:56px;align-items:start;}
  .faq-aside h2{
    margin:0 0 14px;font-family:var(--font-serif);
    font-size:clamp(24px,2.4vw,32px);line-height:1.3;color:var(--primary);
  }
  .faq-aside p{margin:0 0 20px;font-size:15px;color:var(--muted);line-height:1.85;}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--hair);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 4px;cursor:pointer;list-style:none;
    font-size:16.5px;font-weight:500;color:var(--text);
    transition:color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--primary);}
  .faq-item summary .plus{
    flex-shrink:0;width:22px;height:22px;position:relative;
    transition:transform .26s var(--ease);
  }
  .faq-item summary .plus::before,
  .faq-item summary .plus::after{
    content:"";position:absolute;background:var(--primary);border-radius:2px;
  }
  .faq-item summary .plus::before{left:0;right:0;top:10px;height:1.5px;}
  .faq-item summary .plus::after{top:0;bottom:0;left:10px;width:1.5px;}
  .faq-item[open] summary{color:var(--primary);font-weight:700;}
  .faq-item[open] summary .plus{transform:rotate(45deg);}
  .faq-answer{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:64em;}

  /* ============ CTA 深色带 ============ */
  .cta-band{background:var(--primary-deep);color:var(--paper);position:relative;overflow:hidden;}
  .cta-band::after{
    content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
    border:1px solid rgba(246,244,239,.12);border-radius:50%;
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;align-items:center;justify-content:space-between;gap:40px;
    padding:56px 0;
  }
  .cta-inner h2{
    margin:0 0 10px;font-family:var(--font-serif);
    font-size:clamp(22px,2.3vw,30px);line-height:1.35;color:#fff;
  }
  .cta-inner p{margin:0;font-size:15px;line-height:1.85;color:rgba(246,244,239,.74);max-width:46em;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--primary-deep);color:rgba(246,244,239,.72);padding-top:64px;}
  .footer-grid{
    display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;
    padding-bottom:48px;border-bottom:1px solid rgba(246,244,239,.12);
  }
  .footer-brand .logo{margin-bottom:18px;}
  .footer-brand .logo-mark{color:#fff;border-right-color:rgba(246,244,239,.24);}
  .footer-brand .logo-text b{color:#fff;}
  .footer-brand .logo-text span{color:rgba(246,244,239,.55);}
  .footer-brand p{margin:0;font-size:14px;line-height:1.85;color:rgba(246,244,239,.66);max-width:26em;}
  .footer-col h4{
    margin:0 0 16px;font-size:13px;font-weight:700;letter-spacing:.12em;
    color:#fff;text-transform:uppercase;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:rgba(246,244,239,.72);}
  .footer-col a:hover{color:#fff;}
  .footer-contact span{display:block;font-size:14px;line-height:1.8;color:rgba(246,244,239,.72);margin-bottom:8px;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 0 28px;font-size:13px;color:rgba(246,244,239,.55);
    flex-wrap:wrap;
  }
  .footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px;}
  .footer-bottom-links a{font-size:13px;color:rgba(246,244,239,.62);}
  .footer-bottom-links a:hover{color:#fff;}

  /* ============ 回到顶部 ============ */
  .to-top{
    position:fixed;right:22px;bottom:26px;z-index:70;
    width:44px;height:44px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:#fff;border:1px solid var(--primary);color:var(--primary);
    box-shadow:var(--shadow-2);cursor:pointer;
    opacity:0;visibility:hidden;transform:translateY(8px);
    transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s;
  }
  .to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
  .to-top:hover{background:var(--primary);color:var(--paper);}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .nav-toggle{display:flex;order:3;}
    .nav-main{
      display:none;position:absolute;left:0;right:0;top:100%;
      background:#FBFAF7;border-bottom:1px solid var(--line);
      box-shadow:var(--shadow-2);
      flex-direction:column;align-items:stretch;gap:0;
      padding:12px 24px 22px;max-height:calc(100vh - 108px);overflow-y:auto;
    }
    .nav-main.open{display:flex;}
    .nav-links{flex-direction:column;align-items:stretch;gap:0;}
    .nav-link{padding:13px 0;border-bottom:1px solid var(--hair);font-size:15.5px;}
    .nav-link::after{bottom:6px;left:0;right:auto;width:28px;}
    .nav-actions{flex-direction:column;align-items:stretch;gap:12px;padding-top:16px;}
    .mega{width:100%;}
    .mega-trigger{width:100%;justify-content:space-between;background:var(--soft);border-color:var(--line);color:var(--primary);}
    .mega-panel{
      position:static;width:100%;display:none;opacity:1;visibility:visible;transform:none;
      box-shadow:none;border-radius:12px;margin-top:10px;grid-template-columns:1fr;
      padding:4px;transition:none;
    }
    .mega-panel.is-open{display:block;}
    .mega-col + .mega-col{border-left:0;border-top:1px solid var(--hair);}
    .mega-col{padding:14px 16px;}
    .mega-list{grid-template-columns:1fr;}
    .mega-list li a{padding-left:12px;border-left:2px solid var(--primary);margin-bottom:4px;}
    .nav-actions .btn{width:100%;min-height:46px;}

    .banner-veil{width:100%;}
    .banner-inner{padding:52px 0 46px;}
    .section{padding:64px 0;}
    .section-tight{padding:52px 0;}
    .checklist{grid-template-columns:1fr;gap:18px;}
    .zig{grid-template-columns:1fr;gap:28px;}
    .zig.reverse .zig-media{order:0;}
    .zigzag{gap:52px;}
    .feature-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr 1fr;gap:28px 20px;}
    .step::before{display:none;}
    .faq-layout{grid-template-columns:1fr;gap:32px;}
    .cta-inner{flex-direction:column;align-items:flex-start;gap:26px;padding:48px 0;}
    .cta-actions{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .footer-brand{grid-column:1 / -1;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
  }

  @media (max-width:639px){
    body{font-size:16px;}
    .announce-inner{font-size:12.5px;gap:10px;}
    .announce-text i{display:none;}
    .nav-inner{min-height:64px;gap:14px;}
    .logo-mark{font-size:22px;padding-right:10px;}
    .logo-text b{font-size:13px;}
    .logo-text span{font-size:10.5px;letter-spacing:.05em;}
    .banner-inner h1{font-size:26px;}
    .banner-inner p{font-size:15px;}
    .banner-actions .btn{width:100%;min-height:46px;}
    .section-head h2{font-size:23px;}
    .steps{grid-template-columns:1fr;}
    .steps-wrap{padding:28px 22px;}
    .check-item{padding:24px 22px;}
    .footer-grid{grid-template-columns:1fr;}
    .to-top{right:14px;bottom:16px;}
    .cta-actions .btn{width:100%;min-height:46px;}
  }

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{
      animation-duration:.001ms !important;
      transition-duration:.001ms !important;
      scroll-behavior:auto !important;
    }
    .check-item:hover,.zig:hover .zig-media img,.btn:hover{transform:none;}
  }

/* roulang page: category2 */
:root{
  --primary:#123C33;
  --primary-deep:#0E2A24;
  --primary-light:#2E7A69;
  --accent:#C4622D;
  --accent-hover:#A64E1F;
  --canvas:#F6F4EF;
  --card:#FFFFFF;
  --sand:#EFEBE2;
  --zebra:#FAF8F3;
  --ink:#1B1F1D;
  --ink-2:#5A625D;
  --ink-3:#8A908B;
  --line:#E1DCD1;
  --line-soft:#ECE7DC;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,36,.05);
  --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
  --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --fs-body:16.5px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;background:var(--canvas);color:var(--ink);
  font-family:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:var(--fs-body);line-height:1.85;letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,figure{margin:0;}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  color:var(--primary-deep);font-weight:700;line-height:1.28;letter-spacing:.01em;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--primary-light);}
ul,ol{list-style:none;margin:0;padding:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

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

/* ============ 公告条 ============ */
.announce{background:var(--primary);}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:36px;}
.announce-text{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(246,244,239,.92);letter-spacing:.02em;}
.announce-text i{color:rgba(246,244,239,.7);font-size:12.5px;}
.announce-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:rgba(246,244,239,.85);white-space:nowrap;}
.announce-link:hover{color:#F6F4EF;text-decoration:underline;text-underline-offset:4px;}
.announce-link i{font-size:10px;transition:transform .22s var(--ease);}
.announce-link:hover i{transform:translateX(3px);}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:90;background:var(--card);transition:box-shadow .28s var(--ease);}
.site-header.is-scrolled{box-shadow:0 8px 24px -16px rgba(18,60,51,.40);}
.main-nav{position:relative;background:var(--card);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:32px;min-height:72px;}

.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  font-family:"Noto Serif SC",serif;font-size:21px;font-weight:700;letter-spacing:.06em;
  background:var(--primary);color:#F6F4EF;border-radius:9px;padding:6px 11px;line-height:1.2;
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{font-size:15px;color:var(--primary-deep);font-family:"Noto Sans SC",sans-serif;font-weight:700;letter-spacing:.02em;}
.logo-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:.16em;}

.nav-main{display:flex;flex:1;align-items:center;justify-content:space-between;gap:24px;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{position:relative;display:inline-block;padding:10px 14px;font-size:15px;color:var(--ink-2);border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.nav-link:hover{color:var(--primary);}
.nav-link.active{color:var(--primary);font-weight:500;}
.nav-link.active::after{transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.mega{position:relative;}
.mega-trigger{display:inline-flex;align-items:center;gap:7px;padding:10px 14px;font-size:15px;color:var(--ink-2);border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);}
.mega-trigger:hover{color:var(--primary);background:var(--sand);}
.mega-trigger i{font-size:10px;transition:transform .22s var(--ease);}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:880px;max-width:calc(100vw - 48px);
  background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-3);
  padding:28px;display:grid;grid-template-columns:1.15fr 1fr .95fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s var(--ease) .12s,transform .18s var(--ease) .12s,visibility .18s;
}
.mega-panel::before{content:"";position:absolute;top:-14px;left:0;right:0;height:14px;}
.mega-title{font-family:"Noto Sans SC",sans-serif;font-size:12.5px;color:var(--ink-3);letter-spacing:.12em;margin-bottom:14px;font-weight:500;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:6px 16px;}
.mega-list a{display:block;font-size:14px;color:var(--ink-2);padding:5px 0;line-height:1.6;}
.mega-list a:hover{color:var(--primary);}
.mega-news li{padding:10px 0;border-bottom:1px solid var(--line-soft);}
.mega-news li:last-child{border-bottom:0;}
.mega-news a{display:block;font-size:14px;color:var(--ink);line-height:1.6;}
.mega-news a:hover{color:var(--primary);}
.mega-news time{display:block;font-size:12px;color:var(--ink-3);margin-top:3px;font-variant-numeric:tabular-nums;}
.mega-entry{background:var(--primary-deep);border-radius:12px;padding:22px;display:flex;flex-direction:column;gap:10px;}
.mega-entry h4{color:#F6F4EF;font-size:16px;line-height:1.4;}
.mega-entry p{font-size:12.5px;color:rgba(246,244,239,.62);line-height:1.7;}
.mega-entry a{display:flex;align-items:center;justify-content:center;min-height:38px;border-radius:8px;font-size:13.5px;background:#F6F4EF;color:var(--primary-deep);font-weight:500;transition:background .2s var(--ease),color .2s var(--ease);}
.mega-entry a:hover{background:#fff;color:var(--primary-deep);}
.mega-entry a.ghost{background:transparent;border:1px solid rgba(246,244,239,.32);color:#F6F4EF;}
.mega-entry a.ghost:hover{background:rgba(246,244,239,.12);color:#F6F4EF;}

.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;color:var(--primary);font-size:16px;margin-left:auto;}

@media (min-width:1024px){
  .mega:hover .mega-panel,.mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .mega:hover .mega-trigger i{transform:rotate(180deg);}
}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-inner{min-height:64px;gap:16px;}
  .nav-main{
    position:absolute;left:0;right:0;top:100%;
    background:var(--card);border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);
    flex-direction:column;align-items:stretch;gap:8px;padding:8px 20px 22px;display:none;
  }
  .nav-main.is-open{display:flex;}
  .nav-links{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{padding:14px 8px;border-bottom:1px solid var(--line-soft);border-radius:0;}
  .nav-link::after{display:none;}
  .nav-link.active{border-left:2px solid var(--primary);padding-left:12px;background:var(--zebra);}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:10px;}
  .mega{position:static;}
  .mega-trigger{width:100%;justify-content:space-between;padding:14px 8px;border-radius:0;border-bottom:1px solid var(--line-soft);}
  .mega-panel{
    position:static;width:auto;max-width:none;box-shadow:none;border:0;border-radius:0;padding:6px 0 0;
    display:none;grid-template-columns:1fr;gap:18px;opacity:1;visibility:visible;transform:none;
  }
  .mega.is-open .mega-panel{display:grid;}
  .mega-panel::before{display:none;}
  .mega-list{grid-template-columns:1fr;padding-left:12px;border-left:2px solid var(--primary);}
  .mega-news,.mega-entry{margin-left:12px;}
  .mega-entry{padding:18px;}
}

/* ============ 按钮 / 徽章 / 文字链 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.03em;min-height:48px;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn i{font-size:12px;transition:transform .22s var(--ease);}
.btn-primary{background:var(--primary);color:#F6F4EF;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-deep);color:#F6F4EF;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-primary:hover i{transform:translateX(3px);}
.btn-ghost{background:var(--card);color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--primary);color:#F6F4EF;}
.btn-light{background:#F6F4EF;color:var(--primary-deep);}
.btn-light:hover{background:#fff;color:var(--primary-deep);box-shadow:var(--shadow-2);}

.badge{display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;background:var(--sand);color:var(--primary);font-size:12.5px;letter-spacing:.1em;}
.badge i{font-size:11px;color:var(--accent);}

.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:500;color:var(--primary);}
.text-link i{font-size:11px;transition:transform .22s var(--ease);}
.text-link:hover i{transform:translateX(3px);}

/* ============ 板块骨架 ============ */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-sand{background:var(--sand);}
.section-head{max-width:700px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(26px,2.6vw,38px);}
.section-desc{margin-top:14px;color:var(--ink-2);font-size:16.5px;line-height:1.8;}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:14px;font-family:"Noto Sans SC",sans-serif;}

/* ============ HERO ============ */
.page-hero{position:relative;padding:76px 0 68px;background:var(--card);border-bottom:1px solid var(--line);overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;opacity:.07;
}
.hero-center{position:relative;max-width:840px;margin:0 auto;text-align:center;}
.hero-center h1{font-size:clamp(29px,3.5vw,44px);line-height:1.22;margin-top:22px;}
.hero-sub{margin-top:18px;font-size:17.5px;line-height:1.75;color:var(--ink-2);}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:34px;}
.hero-stats{display:flex;justify-content:center;flex-wrap:wrap;margin-top:46px;}
.hero-stats li{padding:0 38px;border-left:1px solid var(--line);text-align:center;}
.hero-stats li:first-child{border-left:0;}
.stat-num{display:block;font-family:"Noto Serif SC",serif;font-size:24px;color:var(--primary);line-height:1.3;font-variant-numeric:tabular-nums;}
.stat-label{display:block;font-size:13px;color:var(--ink-3);margin-top:4px;}

/* ============ 锚点标签栏 ============ */
.anchor-bar{background:var(--card);border-bottom:1px solid var(--line);}
.anchor-inner{display:flex;gap:10px;padding:14px 0;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;padding:8px 18px;border-radius:999px;border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);background:var(--card);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-pill:hover{border-color:var(--primary);color:var(--primary);}
.anchor-pill.is-active{background:var(--primary);border-color:var(--primary);color:#F6F4EF;}

/* ============ 自检图文 ============ */
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.check-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);position:relative;}
.check-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.check-media figcaption{
  position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.93);color:var(--primary-deep);
  font-size:12.5px;padding:6px 12px;border-radius:999px;letter-spacing:.02em;
}
.check-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line-soft);}
.check-list li:first-child{border-top:0;padding-top:0;}
.check-list li:last-child{padding-bottom:0;}
.check-icon{
  flex:0 0 auto;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:var(--zebra);display:grid;place-items:center;color:var(--primary);font-size:14px;
}
.check-list h3{font-size:17.5px;margin-bottom:4px;}
.check-list p{font-size:14.8px;color:var(--ink-2);line-height:1.8;}

/* ============ 三列服务卡 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.svc-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFC7B6;}
.svc-icon{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--zebra);
  display:grid;place-items:center;color:var(--primary);font-size:17px;margin-bottom:20px;
}
.svc-card h3{font-size:20px;margin-bottom:10px;}
.svc-card p{font-size:14.8px;color:var(--ink-2);line-height:1.8;flex:1;}
.svc-card .text-link{margin-top:20px;padding-top:18px;border-top:1px solid var(--line-soft);}

/* ============ 流程步骤 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px;}
.flow-step{position:relative;padding-top:44px;}
.flow-step::before{content:"";position:absolute;top:13px;left:0;width:100%;height:1px;background:var(--line);}
.flow-step:last-child::before{width:0;}
.flow-dot{
  position:absolute;top:0;left:0;width:27px;height:27px;border-radius:50%;
  background:var(--card);border:1px solid var(--primary);color:var(--primary);
  display:grid;place-items:center;font-size:12px;font-variant-numeric:tabular-nums;z-index:1;
}
.flow-step h3{font-size:18.5px;margin-bottom:8px;}
.flow-step p{font-size:14.8px;color:var(--ink-2);line-height:1.8;}

/* ============ 速查表 ============ */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:12px;background:var(--card);
  box-shadow:var(--shadow-1);-webkit-overflow-scrolling:touch;
}
table.qtable{width:100%;border-collapse:collapse;min-width:760px;font-size:15px;}
.qtable thead th{
  background:var(--sand);color:var(--primary-deep);text-align:left;font-weight:500;
  font-size:13.8px;letter-spacing:.04em;padding:14px 20px;white-space:nowrap;
}
.qtable td{padding:15px 20px;border-top:1px solid var(--line-soft);color:var(--ink-2);line-height:1.75;vertical-align:top;}
.qtable tbody tr:nth-child(even){background:var(--zebra);}
.qtable td:first-child{color:var(--ink);font-weight:500;position:sticky;left:0;background:inherit;box-shadow:1px 0 0 var(--line-soft);}
.qtable td:last-child{font-variant-numeric:tabular-nums;white-space:nowrap;}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;font-size:17px;font-weight:500;color:var(--ink);
  list-style:none;transition:color .2s var(--ease);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--primary);}
.faq-plus{
  flex:0 0 auto;width:27px;height:27px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--primary);font-size:11px;
  transition:transform .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease);
}
.faq details[open] summary{color:var(--primary);}
.faq details[open] .faq-plus{transform:rotate(45deg);background:var(--sand);border-color:#D6CEBD;}
.faq-body{padding:0 4px 24px;font-size:15.4px;line-height:1.88;color:var(--ink-2);max-width:66ch;}

/* ============ CTA ============ */
.cta-card{
  background:var(--sand);border:1px solid var(--line);border-radius:var(--r-img);
  padding:52px;display:grid;grid-template-columns:1.45fr .55fr;gap:40px;align-items:center;
}
.cta-card h2{font-size:clamp(24px,2.4vw,32px);}
.cta-card p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.8;max-width:52ch;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn{width:100%;}
.cta-foot{display:flex;flex-wrap:wrap;gap:24px;margin-top:26px;}
.cta-foot .text-link{font-size:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:rgba(246,244,239,.72);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px;padding-bottom:56px;}
.footer-brand .logo-mark{background:rgba(246,244,239,.14);color:#F6F4EF;}
.footer-brand .logo-text b{color:#F6F4EF;}
.footer-brand .logo-text span{color:rgba(246,244,239,.52);}
.footer-brand p{margin-top:20px;font-size:14.5px;line-height:1.85;max-width:33ch;color:rgba(246,244,239,.66);}
.footer-col h4{
  font-family:"Noto Sans SC",sans-serif;font-size:13.5px;font-weight:500;
  color:#F6F4EF;letter-spacing:.14em;margin-bottom:20px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{font-size:14.5px;color:rgba(246,244,239,.72);}
.footer-col a:hover{color:#F6F4EF;text-decoration:underline;text-underline-offset:4px;}
.footer-contact span{display:block;font-size:14.5px;line-height:1.95;color:rgba(246,244,239,.72);}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.12);padding:22px 0 26px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(246,244,239,.58);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-bottom-links a{color:rgba(246,244,239,.58);font-size:13.5px;}
.footer-bottom-links a:hover{color:#F6F4EF;}

/* ============ 回到顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:28px;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--primary);background:var(--card);color:var(--primary);
  display:grid;place-items:center;font-size:14px;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);z-index:70;
  transition:opacity .26s var(--ease),transform .26s var(--ease),visibility .26s,background .2s,color .2s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--primary);color:#F6F4EF;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .check-grid{grid-template-columns:1fr;gap:36px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .flow-step:nth-child(2)::before{width:0;}
  .cta-card{grid-template-columns:1fr;padding:40px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .mega-panel{width:auto;}
}

@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .announce-inner{min-height:34px;justify-content:flex-start;}
  .announce-text{font-size:12.5px;}
  .announce-link{display:none;}
  .page-hero{padding:52px 0 48px;}
  .hero-center h1{font-size:26px;margin-top:18px;}
  .hero-sub{font-size:16px;margin-top:14px;}
  .hero-actions{flex-direction:column;gap:12px;margin-top:28px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{margin-top:34px;}
  .hero-stats li{padding:0 16px;flex:1 1 0;}
  .stat-num{font-size:20px;}
  .stat-label{font-size:12px;}
  .card-grid{grid-template-columns:1fr;gap:18px;}
  .svc-card{padding:24px;}
  .flow{grid-template-columns:1fr;}
  .flow-step{padding-top:40px;}
  .flow-step::before{width:0;}
  .faq summary{font-size:15.6px;padding:18px 2px;}
  .faq-body{font-size:14.8px;}
  .cta-card{padding:28px;border-radius:14px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .site-footer{padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .back-top{right:16px;bottom:20px;width:42px;height:42px;}
  .logo-text b{font-size:14px;}
  .logo-text span{font-size:11px;}
  .logo-mark{font-size:19px;padding:5px 9px;}
}

@media (max-width:520px){
  .hero-stats li{padding:0 10px;}
  .stat-num{font-size:18px;}
  .anchor-pill{font-size:13px;padding:7px 14px;}
  .btn{min-height:46px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    transition-delay:0ms !important;
  }
  .svc-card:hover,.btn:hover,.back-top{transform:none !important;}
  .check-media img,.svc-card:hover{transform:none !important;}
}

/* roulang page: category4 */
:root{
  --primary:#123C33;
  --primary-deep:#0E2A24;
  --primary-light:#2E7A69;
  --accent:#C4622D;
  --accent-hover:#A64E1F;
  --canvas:#F6F4EF;
  --card:#FFFFFF;
  --soft:#EFEBE2;
  --zebra:#FAF8F3;
  --ink:#1B1F1D;
  --muted:#5A625D;
  --faint:#8A908B;
  --line:#E1DCD1;
  --hair:#ECE7DC;
  --paper:#F6F4EF;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(18,42,36,.05);
  --shadow-2:0 14px 34px -14px rgba(18,60,51,.20);
  --shadow-3:0 20px 44px -20px rgba(18,60,51,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--canvas);
  color:var(--ink);
  font-family:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.015em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--primary-light)}
h1,h2,h3,h4{margin:0;font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;letter-spacing:.01em;color:var(--primary);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 公告条 ---------- */
.announce{background:var(--primary);color:var(--paper);font-size:13.5px}
.announce-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;flex-wrap:wrap}
.announce-text{display:inline-flex;align-items:center;gap:8px;opacity:.92}
.announce-text i{font-size:12px;opacity:.85}
.announce-link{color:var(--paper);font-size:13px;display:inline-flex;align-items:center;gap:7px;opacity:.82}
.announce-link:hover{color:#fff;opacity:1;text-decoration:underline;text-underline-offset:4px}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60}
.main-nav{
  position:sticky;top:0;z-index:70;
  background:var(--card);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
  backdrop-filter:none;
}
.main-nav.scrolled{box-shadow:0 8px 24px -16px rgba(18,60,51,.45)}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo-mark{
  width:44px;height:44px;border-radius:11px;background:var(--primary);color:var(--paper);
  display:grid;place-items:center;font-family:"Noto Serif SC",serif;font-weight:700;font-size:17px;letter-spacing:.02em;
}
.logo-text{display:block;line-height:1.2}
.logo-text b{display:block;font-size:15px;font-weight:700;color:var(--primary);letter-spacing:.01em}
.logo-text span{display:block;font-size:11px;color:var(--faint);letter-spacing:.16em;margin-top:3px}
.nav-main{display:none}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:var(--card);color:var(--primary);cursor:pointer;font-size:16px;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--primary);background:var(--soft)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:7px 12px;font-size:15px;color:var(--muted);
  border-radius:8px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--primary);background:var(--soft)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-actions{display:flex;align-items:center;gap:12px}
.mega{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;border:1px solid transparent;border-radius:8px;
  padding:7px 12px;font-size:15px;color:var(--muted);cursor:pointer;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.mega-trigger:hover{color:var(--primary);background:var(--soft)}
.mega-trigger i{font-size:10px;transition:transform .22s var(--ease)}
.mega.is-open .mega-trigger i{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:880px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-3);padding:24px;
  display:grid;grid-template-columns:1.45fr 1.1fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s var(--ease) .12s,transform .22s var(--ease) .12s,visibility .22s .12s;
}
.mega:hover .mega-panel,.mega:focus-within .mega-panel,.mega.is-open .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);transition-delay:.12s;
}
.mega-title{font-size:12px;letter-spacing:.14em;color:var(--faint);margin-bottom:12px;font-weight:600}
.mega-list{display:grid;gap:9px}
.mega-list-2{grid-template-columns:1fr 1fr;gap:9px 18px}
.mega-list a{font-size:14px;color:var(--muted);display:inline-block;padding:2px 0}
.mega-list a:hover{color:var(--primary)}
.mega-recent li{padding-top:10px;margin-top:10px;border-top:1px solid var(--hair)}
.mega-recent li:first-child{padding-top:0;margin-top:0;border-top:0}
.mega-recent span{display:block;font-size:12px;color:var(--faint);font-variant-numeric:tabular-nums}
.mega-recent a{display:block;font-size:13.5px;color:var(--ink);line-height:1.55;margin-top:2px}
.mega-recent a:hover{color:var(--primary)}
.mega-cta-card{background:var(--primary-deep);border-radius:12px;padding:20px;color:var(--paper)}
.mega-cta-card p{font-size:13.5px;line-height:1.7;color:rgba(246,244,239,.72)}
.mega-cta-card strong{display:block;font-family:"Noto Serif SC",serif;font-size:16px;color:#fff;margin-bottom:8px}
.mega-cta-card .mega-btns{display:flex;flex-direction:column;gap:8px;margin-top:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);font-size:15px;font-weight:500;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn i{font-size:12px;transition:transform .22s var(--ease)}
.btn-primary{background:var(--primary);color:var(--paper);box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--card);color:var(--primary);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--primary-deep)}
.btn-light:hover{background:#fff;color:var(--primary-deep);box-shadow:var(--shadow-2)}
.btn-outline-light{background:transparent;color:var(--paper);border-color:rgba(246,244,239,.45)}
.btn-outline-light:hover{background:var(--paper);color:var(--primary-deep);border-color:var(--paper)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--primary)}
.link-arrow i{transition:transform .22s var(--ease);font-size:11px}
.link-arrow:hover i{transform:translateX(3px)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;background:var(--soft);color:var(--primary);
  font-size:12px;letter-spacing:.04em;line-height:1;
}
.badge-light{background:rgba(246,244,239,.14);color:var(--paper)}
.badge-accent{background:rgba(196,98,45,.12);color:var(--accent-hover)}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:236px;display:flex;align-items:center;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:right center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,#123C33 0%,#123C33 58%,rgba(18,60,51,.72) 78%,rgba(18,60,51,.28) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(246,244,239,.7);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:rgba(246,244,239,.7)}
.crumbs a:hover{color:#fff}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:#F6F4EF}
.page-hero h1{
  color:#F6F4EF;font-size:clamp(28px,3.6vw,44px);line-height:1.18;max-width:16em;
}
.page-hero .hero-sub{
  margin-top:14px;color:rgba(246,244,239,.8);font-size:16px;max-width:34em;line-height:1.75;
}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-tags .badge{background:rgba(246,244,239,.14);color:rgba(246,244,239,.9)}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:44em}
.eyebrow{font-size:12px;letter-spacing:.22em;color:var(--accent);font-weight:600;margin-bottom:12px;display:block}

/* ---------- 主体两栏 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:start}
  .sticky-col{position:sticky;top:96px}
}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:24px;
}
@media (min-width:768px){.panel{padding:28px}}
.panel h3{font-size:19px;margin-bottom:6px}
.panel .panel-note{font-size:13.5px;color:var(--faint);margin-bottom:16px}

/* ---------- 时间线清单 ---------- */
.timeline{border-top:1px solid var(--line)}
.timeline-item{
  display:grid;grid-template-columns:1fr;gap:8px;
  padding:24px 0;border-bottom:1px solid var(--hair);
  transition:background .22s var(--ease);
}
.timeline-item:hover{background:rgba(250,248,243,.7)}
@media (min-width:768px){
  .timeline-item{grid-template-columns:112px minmax(0,1fr);gap:26px;padding:26px 0}
}
.timeline-date{font-size:13.5px;color:var(--faint);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.timeline-body h3{font-size:18.5px;line-height:1.5;color:var(--primary);font-weight:700}
.timeline-body p{margin-top:9px;font-size:14.5px;line-height:1.8;color:var(--muted)}
.timeline-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  background:var(--zebra);border:1px solid var(--hair);color:var(--muted);
  font-size:12px;line-height:1.4;
}
.timeline-meta .meta-time{font-size:12.5px;color:var(--faint);font-variant-numeric:tabular-nums}

/* ---------- 折叠问答 ---------- */
.faq{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:6px 22px}
.faq-item{border-top:1px solid var(--hair)}
.faq-item:first-of-type{border-top:0}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:17px 0;font-size:15px;line-height:1.6;color:var(--ink);font-weight:500;
  transition:color .22s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"＋";color:var(--accent);font-size:15px;line-height:1.4;flex-shrink:0;
  transition:transform .24s var(--ease);
}
.faq-item summary:hover{color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 0 18px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ---------- 入口卡 ---------- */
.entry-card{
  background:var(--primary-deep);border-radius:var(--r-card);padding:26px;color:var(--paper);
  box-shadow:var(--shadow-2);
}
.entry-card h3{color:#fff;font-size:18px;margin-bottom:8px}
.entry-card p{font-size:13.5px;line-height:1.75;color:rgba(246,244,239,.72)}
.entry-card .entry-btns{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.entry-divider{height:1px;background:rgba(246,244,239,.12);margin:18px 0}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.grid-3{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-badge{
  position:absolute;top:12px;left:12px;z-index:2;
  background:rgba(255,255,255,.92);color:var(--primary);
  font-size:12px;padding:5px 11px;border-radius:999px;line-height:1;
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17.5px;line-height:1.5}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted)}
.card-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-foot .meta{font-size:12.5px;color:var(--faint);font-variant-numeric:tabular-nums}

/* ---------- 深色横带 ---------- */
.cta-band{background:var(--primary-deep);color:var(--paper)}
.cta-band-inner{
  display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
  padding:48px 0;
}
@media (min-width:1024px){
  .cta-band-inner{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;padding:60px 0}
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.35}
.cta-band p{margin-top:12px;font-size:14.5px;line-height:1.8;color:rgba(246,244,239,.72);max-width:36em}
.cta-band-btns{display:flex;gap:12px;flex-wrap:wrap}
@media (min-width:1024px){.cta-band-btns{justify-content:flex-end}}

/* ---------- 表单 ---------- */
.support-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:1024px){.support-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:26px}
@media (min-width:768px){.form-card{padding:32px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;color:var(--ink);background:var(--card);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:#A6ACA7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(18,60,51,.10);
}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field-row{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.field-row{grid-template-columns:1fr 1fr}}
.checkbox{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:18px}
.checkbox input{margin-top:4px;accent-color:var(--primary);width:15px;height:15px;flex-shrink:0}
.form-hint{font-size:12.5px;color:var(--faint);margin-top:12px}
.form-notice{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--zebra);border:1px solid var(--hair);color:var(--primary);font-size:13.5px;
}
.form-notice.show{display:block}
.contact-card{background:var(--primary-deep);border-radius:var(--r-card);padding:30px;color:var(--paper);box-shadow:var(--shadow-2)}
.contact-card h3{color:#fff;font-size:19px;margin-bottom:10px}
.contact-card p{font-size:13.5px;line-height:1.8;color:rgba(246,244,239,.72)}
.contact-list{margin-top:20px;display:grid;gap:14px}
.contact-list li{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:rgba(246,244,239,.8)}
.contact-list i{color:rgba(246,244,239,.55);font-size:14px;margin-top:4px;width:16px;text-align:center}
.contact-split{height:1px;background:rgba(246,244,239,.12);margin:22px 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-deep);color:rgba(246,244,239,.72);padding-top:60px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px}}
.site-footer .logo-mark{background:rgba(246,244,239,.14);color:#F6F4EF}
.site-footer .logo-text b{color:#F6F4EF}
.site-footer .logo-text span{color:rgba(246,244,239,.55)}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(246,244,239,.7);max-width:26em}
.footer-col h4{color:#F6F4EF;font-size:14px;letter-spacing:.08em;margin-bottom:16px;font-family:"Noto Sans SC",sans-serif;font-weight:600}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(246,244,239,.72);font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact span{display:block;font-size:13.5px;line-height:1.9;color:rgba(246,244,239,.7)}
.footer-bottom{
  margin-top:46px;border-top:1px solid rgba(246,244,239,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(246,244,239,.6);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom-links a{color:rgba(246,244,239,.6);font-size:13px}
.footer-bottom-links a:hover{color:#fff}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--card);border:1px solid var(--primary);color:var(--primary);
  cursor:pointer;font-size:14px;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),background .2s var(--ease),color .2s var(--ease);
  box-shadow:var(--shadow-1);
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--primary);color:var(--paper)}

/* ---------- 移动端导航 ---------- */
@media (max-width:1023px){
  .nav-main{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:var(--card);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);padding:10px 24px 22px;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav-main.open{display:flex}
  .nav-links{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:13px 12px;font-size:15px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--soft)}
  .nav-actions{margin-top:14px;flex-direction:column;align-items:stretch;gap:10px}
  .mega{width:100%}
  .mega-trigger{width:100%;justify-content:space-between;border-color:var(--line);padding:12px 14px}
  .mega-panel{
    position:static;width:100%;margin-top:10px;padding:16px;
    grid-template-columns:1fr;display:none;box-shadow:none;
    opacity:1;visibility:visible;transform:none;border-radius:12px;
  }
  .mega.is-open .mega-panel{display:grid}
  .mega:hover .mega-panel:not(.is-open){opacity:1}
  .mega-list-2{grid-template-columns:1fr}
  .nav-actions .btn{width:100%}
}
@media (max-width:639px){
  .announce-text{font-size:12.5px}
  .announce-inner{min-height:34px}
  .page-hero{min-height:200px}
  .page-hero .container{padding-top:34px;padding-bottom:34px}
  .btn{padding:13px 20px;min-height:46px}
  .section{padding:52px 0}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .card:hover{transform:none}
  .card:hover .card-media img{transform:none}
  .btn:hover{transform:none}
}