/* roulang page: index */
:root{
  --ink:#17302C;
  --ink-deep:#102220;
  --bronze:#B4763C;
  --cinnabar:#B8452F;
  --paper:#F6F2EA;
  --card:#FFFDF8;
  --sub:#EFE9DC;
  --text:#1F2422;
  --text-2:#55605B;
  --text-3:#8A908A;
  --line:#E3DCCD;
  --divider:#EAE4D7;
  --moss:#5C7A5E;
  --r-card:14px;
  --r-img:10px;
  --r-btn:8px;
  --r-lg:16px;
  --sh-1:0 1px 2px rgba(23,48,44,.06);
  --sh-2:0 10px 28px -14px rgba(23,48,44,.28);
  --sh-3:0 22px 48px -22px rgba(23,48,44,.32);
  --ease:180ms ease-out;
  --pad-y:96px;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:.01em;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--bronze)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media (max-width:575.98px){.container{padding-left:18px;padding-right:18px}}

/* ============ 顶栏 ============ */
.topbar{background:var(--ink);color:#E7E1D4;font-size:13px;line-height:1.7}
.topbar .topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;flex-wrap:wrap}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.topbar a{color:#E7E1D4;font-size:13px}
.topbar a:hover{color:var(--bronze)}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--bronze);display:inline-block;margin-right:7px;vertical-align:1px}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,253,248,.97);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--ink);color:var(--card);display:grid;place-items:center;font-family:var(--serif);font-size:19px;font-weight:700;flex-shrink:0}
.brand-text{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--ink);line-height:1.25}
.brand-sub{display:block;font-family:var(--sans);font-size:11.5px;font-weight:400;color:var(--text-3);letter-spacing:.08em;margin-top:2px}
.nav-main{align-items:center;gap:28px;flex:1;justify-content:flex-end}
.nav-main.collapse:not(.show){display:none}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-list > li > a{display:inline-block;padding:10px 0;font-size:15.5px;font-weight:600;color:var(--text);position:relative}
.nav-list > li > a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;background:var(--bronze);transform:scaleX(0);transform-origin:center;transition:transform 200ms ease}
.nav-list > li > a:hover::after,.nav-list > li > a.active::after{transform:scaleX(1)}
.nav-list > li > a.active{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:var(--card);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-trigger{background:none;border:0;padding:10px 0;font-size:15.5px;font-weight:600;color:var(--text);display:inline-flex;align-items:center;gap:6px}
.mega-trigger .caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid var(--bronze);transition:transform var(--ease)}
.mega-wrap.open .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{position:absolute;top:calc(100% + 8px);right:0;width:900px;max-width:calc(100vw - 48px);background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--sh-3);padding:28px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:28px;opacity:0;visibility:hidden;transform:translateY(2px);transition:opacity 160ms ease,transform 160ms ease,visibility 160ms;z-index:1040}
.mega-wrap:hover .mega-panel,.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.1em;margin-bottom:14px;font-family:var(--sans)}
.mega-links li + li{margin-top:10px}
.mega-links a{font-size:14.5px;color:var(--text-2);display:inline-flex;align-items:center;gap:8px}
.mega-links a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--bronze);opacity:.6}
.mega-links a:hover{color:var(--ink)}
.mega-news li + li{margin-top:14px;padding-top:14px;border-top:1px solid var(--divider)}
.mega-news time{font-size:12.5px;color:var(--text-3);display:block}
.mega-news a{font-size:14.5px;font-weight:500;color:var(--text);line-height:1.6;display:block;margin-top:2px}
.mega-news a:hover{color:var(--bronze)}
.mega-card{background:var(--ink);color:#EDE7DA;border-radius:12px;padding:24px;display:flex;flex-direction:column;justify-content:space-between;min-height:190px}
.mega-card h4{color:var(--card);font-size:18px;margin-bottom:8px}
.mega-card p{font-size:13.5px;color:#C9C3B4;line-height:1.75;margin:0}
.mega-card .mega-card-go{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--card);font-size:14px;font-weight:600}
.mega-card .mega-card-go:hover{color:var(--bronze)}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:16px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-main{background:var(--ink);color:var(--card);border:1px solid var(--ink)}
.btn-main:hover{background:var(--ink-deep);color:var(--card);transform:translateY(-1px);box-shadow:inset 0 0 0 1px var(--cinnabar),var(--sh-2)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:rgba(23,48,44,.08);color:var(--ink);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-invert{background:var(--card);color:var(--ink);border:1px solid var(--card)}
.btn-invert:hover{background:var(--bronze);color:#FFFDF8;border-color:var(--bronze);transform:translateY(-1px)}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;color:var(--ink);position:relative;padding-bottom:3px}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:16px;background:var(--bronze);transition:width 200ms ease}
.link-arrow:hover::after{width:100%}
.text-link{font-size:14.5px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--bronze);padding-bottom:2px}
.text-link:hover{color:var(--bronze)}

/* ============ 通用板块 ============ */
.section{padding:var(--pad-y) 0}
.section-alt{background:var(--sub)}
.section-head{margin-bottom:44px;max-width:780px}
.section-head h2{font-size:30px;line-height:1.35;padding-left:14px;border-left:4px solid var(--bronze);margin-bottom:14px}
.section-lead{font-size:16.5px;color:var(--text-2);margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.section-head-row .section-head{margin-bottom:0}
.eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--bronze);margin-bottom:14px}
.badge-tag{display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;background:rgba(180,118,60,.12);color:var(--bronze);font-size:12.5px;font-weight:600;line-height:1;letter-spacing:.02em}

/* ============ Hero ============ */
.hero{padding:64px 0 0;position:relative;overflow:hidden}
.hero h1{font-size:46px;line-height:1.25;margin-bottom:20px}
.hero-sub{font-size:18.5px;color:var(--text-2);line-height:1.75;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-media{position:relative;border-radius:var(--r-lg)}
.hero-media::before{content:"";position:absolute;inset:-12px -12px 12px 12px;border:1px solid var(--bronze);border-radius:calc(var(--r-lg) + 6px);opacity:.5;pointer-events:none}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:64px;padding:32px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-num{font-family:var(--serif);font-size:46px;font-weight:700;color:var(--ink);line-height:1.1}
.stat-num em{font-style:normal;font-size:14px;color:var(--text-2);margin-left:5px;font-family:var(--sans);font-weight:500}
.stat-label{font-size:14px;color:var(--text-2);margin-top:6px}

/* ============ 服务条列 ============ */
.service-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:48px}
.service-row{display:flex;gap:18px;align-items:flex-start;padding:26px 14px;border-bottom:1px solid var(--divider);transition:background var(--ease)}
.service-row:hover{background:var(--sub)}
.service-no{font-family:var(--serif);font-size:25px;font-weight:700;color:var(--bronze);min-width:50px;line-height:1.35}
.service-row h3{font-size:20px;line-height:1.5;margin-bottom:6px}
.service-row p{font-size:15.5px;color:var(--text-2);line-height:1.8;margin:0}

/* ============ 优势数据 ============ */
.adv-desc p{font-size:16.5px;color:var(--text-2);line-height:1.85;margin-bottom:14px}
.adv-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px 36px}
.adv-cell{padding-top:22px;border-top:1px solid var(--line)}
.adv-cell .stat-num{font-size:40px}
.adv-cell h3{font-size:16px;font-family:var(--sans);font-weight:600;color:var(--text);margin-bottom:4px}
.adv-cell p{font-size:14.5px;color:var(--text-2);margin:0;line-height:1.75}

/* ============ 案例图文 ============ */
.case-row{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;margin-bottom:72px}
.case-row:last-child{margin-bottom:0}
.case-row.reverse{grid-template-columns:5fr 7fr}
.case-row.reverse .case-media{order:2}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.case-body h3{font-size:24px;line-height:1.4;margin:14px 0 12px}
.case-body p{font-size:16px;color:var(--text-2);line-height:1.85;margin-bottom:16px}
.case-points{display:flex;gap:22px;flex-wrap:wrap;margin-bottom:18px}
.case-points span{font-size:14px;color:var(--text-2)}
.case-points strong{font-family:var(--serif);color:var(--ink);font-size:17px;margin-right:4px}

/* ============ 时间轴 ============ */
.timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative;padding-top:8px}
.timeline::before{content:"";position:absolute;top:16px;left:8px;right:8px;height:2px;background:rgba(180,118,60,.35)}
.tl-item{position:relative;padding-top:44px}
.tl-item::before{content:"";position:absolute;top:8px;left:0;width:16px;height:16px;border-radius:50%;background:var(--card);border:2px solid var(--bronze);box-shadow:0 0 0 4px var(--sub)}
.tl-no{font-family:var(--serif);font-size:14px;font-weight:700;color:var(--bronze);letter-spacing:.1em;display:block;margin-bottom:8px}
.tl-item h3{font-size:20px;margin-bottom:8px}
.tl-item p{font-size:15.5px;color:var(--text-2);line-height:1.8;margin-bottom:12px}

/* ============ 最新信息 ============ */
.cms-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);height:100%}
.cms-main:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(23,48,44,.25)}
.cms-main-media{display:block;overflow:hidden}
.cms-main-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms ease}
.cms-main:hover .cms-main-media img{transform:scale(1.03)}
.cms-main-body{padding:26px 26px 24px}
.cms-main-body h3{font-size:22px;line-height:1.5;margin:12px 0 10px}
.cms-main-body h3 a:hover{color:var(--bronze)}
.cms-main-body p{font-size:15.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cms-meta{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:18px;padding-top:16px;border-top:1px solid var(--divider)}
.cms-meta time{font-size:13.5px;color:var(--text-3)}
.cms-side{display:flex;flex-direction:column;height:100%}
.cms-mini{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);flex:1;display:flex;flex-direction:column;justify-content:space-between}
.cms-mini + .cms-mini{margin-top:16px}
.cms-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(23,48,44,.25)}
.cms-mini-time{font-size:13.5px;color:var(--text-3);display:block;margin-bottom:6px}
.cms-mini h3{font-size:17px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.cms-mini h3 a:hover{color:var(--bronze)}
.cms-mini-foot{display:flex;align-items:center;justify-content:space-between;gap:12px}
.cms-empty{background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.cms-empty .empty-ico{width:48px;height:48px;margin:0 auto 16px;border:2px solid rgba(23,48,44,.4);border-radius:50%;position:relative}
.cms-empty .empty-ico::after{content:"";position:absolute;left:50%;top:50%;width:16px;height:2px;background:rgba(23,48,44,.4);transform:translate(-50%,-50%)}
.cms-empty p{font-size:16px;color:var(--text-2);margin-bottom:18px}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--divider);border-radius:0}
.faq-acc .accordion-button{background:transparent;border:0;box-shadow:none;padding:20px 0;font-family:var(--serif);font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.6;border-radius:0}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button .faq-ico{width:26px;height:26px;border-radius:50%;border:1px solid var(--ink);display:grid;place-items:center;flex-shrink:0;margin-left:auto;position:relative;transition:background var(--ease),border-color var(--ease)}
.faq-acc .accordion-button .faq-ico::before,.faq-acc .accordion-button .faq-ico::after{content:"";position:absolute;background:var(--ink);transition:transform var(--ease),background var(--ease)}
.faq-acc .accordion-button .faq-ico::before{width:11px;height:1.5px}
.faq-acc .accordion-button .faq-ico::after{width:1.5px;height:11px}
.faq-acc .accordion-button:not(.collapsed) .faq-ico{background:var(--bronze);border-color:var(--bronze)}
.faq-acc .accordion-button:not(.collapsed) .faq-ico::before,.faq-acc .accordion-button:not(.collapsed) .faq-ico::after{background:var(--card)}
.faq-acc .accordion-button:not(.collapsed) .faq-ico::after{transform:scaleY(0)}
.faq-acc .accordion-body{padding:6px 0 22px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:660px}

/* ============ 联系 ============ */
.contact-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-3);padding:32px}
.form-label-x{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.form-label-x .req{color:var(--cinnabar);margin-left:3px}
.form-control-x{width:100%;height:48px;padding:0 14px;font-size:16px;font-family:var(--sans);color:var(--text);background:var(--card);border:1px solid var(--line);border-radius:var(--r-btn);transition:border-color var(--ease),box-shadow var(--ease)}
textarea.form-control-x{height:auto;min-height:120px;padding:12px 14px;line-height:1.75;resize:vertical}
.form-control-x:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,48,44,.12)}
.form-control-x::placeholder{color:var(--text-3)}
.field{margin-bottom:20px}
.form-tip{font-size:13.5px;color:var(--cinnabar);margin-top:6px;display:none}
.form-tip.show{display:block}
.form-note{font-size:13.5px;color:var(--text-3);margin-top:14px;line-height:1.7}
.info-card{background:var(--ink);color:#DED9CB;border-radius:var(--r-card);padding:32px;height:100%;display:flex;flex-direction:column;justify-content:space-between}
.info-card h3{color:var(--card);font-size:21px;margin-bottom:18px}
.info-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,253,248,.14);font-size:15px;line-height:1.7}
.info-list li:last-child{border-bottom:0}
.info-list .k{color:#9FA79E;min-width:64px;flex-shrink:0;font-size:14px}
.info-list .v{color:#F0EBDF}
.info-list a{color:#F0EBDF}
.info-list a:hover{color:var(--bronze)}
.info-foot{font-size:13.5px;color:#A9B0A6;line-height:1.75;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,253,248,.14)}

/* ============ CTA 横条 ============ */
.cta-bar{background:var(--ink);color:#EDE7DA;border-radius:var(--r-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-bar h2{color:var(--card);font-size:26px;line-height:1.4;margin-bottom:8px}
.cta-bar p{color:#C9C3B4;font-size:15.5px;margin:0;line-height:1.8;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#D6D1C3;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,253,248,.1);border:1px solid rgba(255,253,248,.22)}
.footer-brand .brand-text{color:var(--card)}
.footer-desc{font-size:14px;line-height:1.85;color:#A9B0A6;max-width:310px;margin-bottom:20px}
.footer-qr{width:88px;height:88px;border-radius:8px;border:1px dashed rgba(255,253,248,.3);display:grid;place-items:center;font-size:12px;color:#8E958C;text-align:center;line-height:1.5}
.footer-col h4{font-size:15px;color:var(--card);font-family:var(--sans);font-weight:600;letter-spacing:.04em;margin-bottom:18px}
.footer-col li + li{margin-top:10px}
.footer-col a{font-size:14px;color:#B9BDB3;line-height:2;display:inline-block;transition:color var(--ease),transform var(--ease)}
.footer-col a:hover{color:var(--bronze);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:#B9BDB3;line-height:2}
.footer-contact .k{color:#8E958C;margin-right:8px}
.footer-bottom{border-top:1px solid rgba(255,253,248,.14);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:#8E958C}
.footer-bottom a{color:#8E958C}
.footer-bottom a:hover{color:var(--bronze)}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  :root{--pad-y:88px}
}
@media (max-width:1199.98px){
  .hero h1{font-size:40px}
  .mega-panel{width:760px}
}
@media (max-width:991.98px){
  :root{--pad-y:72px}
  .nav-toggle{display:inline-flex}
  .nav-main{position:absolute;left:0;right:0;top:100%;background:var(--card);border-bottom:1px solid var(--line);box-shadow:var(--sh-2);padding:18px 24px 26px;flex-direction:column;align-items:stretch;gap:0;max-height:calc(100vh - 74px);overflow-y:auto;z-index:1035}
  .nav-main.collapse{display:none}
  .nav-main.collapse.show{display:flex!important}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list > li{border-bottom:1px solid var(--divider)}
  .nav-list > li > a{display:block;padding:15px 0;font-size:16px}
  .nav-list > li > a::after{display:none}
  .nav-list > li > a.active{color:var(--bronze)}
  .mega-wrap{border-bottom:1px solid var(--divider)}
  .mega-trigger{width:100%;justify-content:space-between;padding:15px 0;font-size:16px}
  .mega-panel{position:static;width:100%;max-width:none;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;border:0;border-radius:0;padding:0 0 18px;grid-template-columns:1fr;gap:18px;background:transparent}
  .mega-wrap.open .mega-panel{display:grid}
  .mega-wrap:hover .mega-panel{display:none}
  .mega-wrap.open:hover .mega-panel{display:grid}
  .mega-card{min-height:auto}
  .hero{padding-top:44px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:17px;max-width:none}
  .hero-media{margin-top:36px}
  .hero-media::before{display:none}
  .hero-stats{margin-top:44px;gap:18px}
  .stat-num{font-size:34px}
  .service-grid{grid-template-columns:1fr;column-gap:0}
  .case-row,.case-row.reverse{grid-template-columns:1fr;gap:28px;margin-bottom:52px}
  .case-row.reverse .case-media{order:0}
  .timeline{grid-template-columns:1fr;gap:0;padding-top:0}
  .timeline::before{top:0;bottom:0;left:8px;right:auto;width:2px;height:auto}
  .tl-item{padding-top:0;padding-left:40px;padding-bottom:32px}
  .tl-item::before{top:0;left:1px}
  .tl-item:last-child{padding-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-bar{padding:32px}
}
@media (max-width:767.98px){
  body{font-size:16.5px}
  .section-head h2{font-size:24px}
  .hero h1{font-size:28px}
  .adv-grid{grid-template-columns:1fr;gap:20px}
  .adv-cell .stat-num{font-size:34px}
  .contact-card,.info-card{padding:24px}
  .cms-main-body{padding:22px}
  .cms-main-body h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:575.98px){
  :root{--pad-y:56px}
  .hero h1{font-size:26px}
  .hero-sub{font-size:16px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .hero-stats{grid-template-columns:1fr;gap:16px;padding:24px 0}
  .hero-stats .stat-item + .stat-item{padding-top:16px;border-top:1px solid var(--divider)}
  .service-row{padding:20px 6px;gap:12px}
  .service-no{font-size:20px;min-width:36px}
  .service-row h3{font-size:18px}
  .cms-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-bar{padding:26px;border-radius:14px}
  .cta-bar h2{font-size:21px}
  .cta-bar .btn-invert{width:100%}
  .brand-text{font-size:16px}
  .topbar-left,.topbar-right{gap:12px}
}

/* roulang page: article */
:root{
  --ink:#17302C;
  --ink-deep:#102220;
  --copper:#B4763C;
  --cinnabar:#B8452F;
  --paper:#F6F2EA;
  --card:#FFFDF8;
  --surface:#EFE9DC;
  --text:#1F2422;
  --text-2:#55605B;
  --text-3:#8A908A;
  --line:#E3DCCD;
  --divider:#EAE4D7;
  --moss:#5C7A5E;
  --r-card:14px;
  --r-img:10px;
  --r-btn:8px;
  --sh-1:0 1px 2px rgba(23,48,44,.06);
  --sh-2:0 10px 28px -14px rgba(23,48,44,.28);
  --sh-3:0 22px 48px -22px rgba(23,48,44,.32);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--copper);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:#E6E0D2;font-size:13px;line-height:36px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-note{letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;align-items:center;gap:20px;flex-shrink:0;}
.topbar-links a{color:#E6E0D2;font-size:13px;}
.topbar-links a:hover{color:var(--copper);}

/* ============ 导航 ============ */
.nav-shell{position:sticky;top:0;z-index:1030;background:var(--card);border-bottom:1px solid var(--divider);transition:box-shadow .2s ease;}
.nav-shell.scrolled{box-shadow:var(--sh-1);}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;padding:10px 0;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;background:var(--ink);
  color:#F3E7D4;font-family:var(--serif);font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(180,118,60,.5);flex-shrink:0;
}
.brand-text{display:block;font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.02em;color:var(--ink);line-height:1.25;}
.brand-sub{display:block;font-size:12.5px;color:var(--text-3);letter-spacing:.05em;line-height:1.5;}
.nav-main{display:flex;align-items:center;justify-content:space-between;gap:32px;flex:1;}
.nav-list{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0;}
.nav-list a{
  position:relative;display:inline-block;padding:10px 0;font-size:15.5px;font-weight:600;color:var(--text-2);
  transition:color .18s ease;
}
.nav-list a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;background:var(--copper);
  transition:left .2s ease,right .2s ease;
}
.nav-list a:hover{color:var(--ink);}
.nav-list a:hover::after,.nav-list a.active::after{left:0;right:0;}
.nav-list a.active{color:var(--ink);}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:9px;height:44px;padding:0 18px;
  border-radius:var(--r-btn);border:1px solid var(--line);background:var(--card);
  color:var(--ink);font-size:14.5px;font-weight:600;cursor:pointer;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.mega-trigger:hover{background:var(--surface);border-color:rgba(23,48,44,.24);box-shadow:var(--sh-1);}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-1px,-1px);transition:transform .2s ease;}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(-135deg) translate(-1px,-1px);}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 8px);width:900px;max-width:calc(100vw - 48px);
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-3);padding:26px;display:grid;grid-template-columns:1.05fr 1fr .95fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(2px);z-index:60;
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
@media (min-width:992px){
  .mega-wrap:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
}
.mega-title{font-family:var(--serif);font-size:14px;font-weight:700;color:var(--copper);letter-spacing:.06em;margin-bottom:12px;}
.mega-links,.mega-news{list-style:none;margin:0;padding:0;}
.mega-links li{margin-bottom:8px;}
.mega-links a{font-size:14.5px;color:var(--text-2);display:inline-block;transition:color .18s,transform .18s;}
.mega-links a:hover{color:var(--ink);transform:translateX(2px);}
.mega-news li{padding:10px 0;border-bottom:1px solid var(--divider);}
.mega-news li:last-child{border-bottom:0;}
.mega-news time{display:block;font-size:12.5px;color:var(--text-3);line-height:1.6;}
.mega-news a{font-size:14px;color:var(--text-2);line-height:1.65;display:block;}
.mega-news a:hover{color:var(--ink);}
.mega-card{
  background:var(--ink);color:#EDE6D8;border-radius:12px;padding:22px;
  border:1px solid rgba(180,118,60,.35);display:flex;flex-direction:column;
}
.mega-card-tag{display:inline-block;align-self:flex-start;font-size:12px;letter-spacing:.08em;color:#E3C39A;border:1px solid rgba(180,118,60,.5);border-radius:999px;padding:2px 10px;margin-bottom:12px;}
.mega-card h3{font-family:var(--serif);font-size:16.5px;font-weight:700;margin:0 0 8px;color:#FFFDF8;line-height:1.5;}
.mega-card p{font-size:13.5px;line-height:1.8;color:#BCC5BC;margin:0 0 16px;}
.mega-card-link{font-size:14px;font-weight:600;color:#E3C39A;margin-top:auto;}
.mega-card-link:hover{color:#FFFDF8;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--card);flex-direction:column;justify-content:center;align-items:center;gap:5px;
  padding:0;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);background:var(--ink);color:#FFFDF8;
  font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.btn-main:hover{
  background:var(--ink-deep);color:#FFFDF8;transform:translateY(-1px);
  box-shadow:var(--sh-2),inset 0 0 0 1px var(--cinnabar);
}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);background:transparent;
  border:1px solid var(--ink);color:var(--ink);font-size:15.5px;font-weight:600;
  transition:background .18s ease,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-ghost:hover{background:rgba(23,48,44,.08);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(0);}
.btn-line{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);position:relative;padding-bottom:5px;}
.btn-line::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--copper);transition:width .2s ease;}
.btn-line:hover::after{width:100%;}

/* ============ 文章头部 ============ */
.article-hero{padding:34px 0 30px;background:var(--paper);border-bottom:1px solid var(--divider);}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;line-height:1.7;}
.breadcrumb-line a{color:var(--text-2);}
.breadcrumb-line a:hover{color:var(--copper);}
.breadcrumb-line .sep{color:#C4BCAA;}
.breadcrumb-line .current{color:var(--text-2);max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.cat-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(180,118,60,.12);color:#96602F;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.article-title{
  font-family:var(--serif);font-size:38px;line-height:1.32;font-weight:700;letter-spacing:.01em;
  color:var(--ink);margin:14px 0 18px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--text-3);}
.meta-row .bar{width:1px;height:12px;background:var(--line);}

/* ============ 正文布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:52px 0 80px;align-items:start;}
.article-body{min-width:0;max-width:760px;}
.article-content{font-size:17px;line-height:1.88;color:var(--text);overflow-wrap:break-word;}
.article-content p{margin:0 0 1em;}
.article-content h2{
  font-family:var(--serif);font-size:29px;line-height:1.38;font-weight:700;color:var(--ink);
  margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--copper);
}
.article-content h3{font-size:20px;font-weight:600;color:var(--ink);margin:1.7em 0 .6em;line-height:1.5;}
.article-content h4{font-size:17.5px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em;}
.article-content ul,.article-content ol{padding-left:1.35em;margin:0 0 1em;}
.article-content li{margin:.35em 0;line-height:1.9;}
.article-content li::marker{color:var(--copper);}
.article-content blockquote{
  margin:1.6em 0;padding:20px 24px;background:var(--surface);
  border-left:3px solid var(--copper);border-radius:0 10px 10px 0;color:var(--text-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);margin:1.8em auto;box-shadow:var(--sh-1);}
.article-content figure{margin:1.8em 0;}
.article-content figcaption{font-size:13.5px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7;}
.article-content a{color:var(--ink);border-bottom:1px solid rgba(23,48,44,.35);}
.article-content a:hover{color:var(--copper);border-bottom-color:var(--copper);}
.article-content table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left;line-height:1.7;}
.article-content th{background:var(--surface);font-weight:600;color:var(--ink);}
.article-content code{background:var(--surface);padding:2px 6px;border-radius:5px;font-size:.92em;}
.article-content hr{border:0;border-top:1px solid var(--divider);margin:2em 0;}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:96px;display:grid;gap:20px;align-content:start;}
.aside-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.aside-title{
  font-family:var(--serif);font-size:16px;font-weight:700;color:var(--ink);
  margin:0 0 14px;padding-left:12px;border-left:3px solid var(--copper);line-height:1.3;
}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:4px;}
.aside-list a{display:block;font-size:14.5px;color:var(--text-2);padding:7px 0;border-bottom:1px dashed var(--divider);}
.aside-list li:last-child a{border-bottom:0;}
.aside-list a:hover{color:var(--ink);padding-left:3px;}
.aside-dark{
  background:var(--ink);color:#EDE6D8;border-radius:var(--r-card);padding:24px;
  border:1px solid rgba(180,118,60,.35);
}
.aside-dark .aside-title{color:#F3E7D4;border-left-color:var(--copper);}
.aside-dark p{font-size:13.8px;line-height:1.85;color:#BCC5BC;margin:0 0 18px;}
.aside-dark .btn-main{width:100%;background:#FFFDF8;color:var(--ink);}
.aside-dark .btn-main:hover{background:#FFFDF8;color:var(--ink-deep);}

/* ============ 文末 ============ */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--divider);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;}
.article-foot .hint{font-size:13.5px;color:var(--text-3);}
.related{margin-top:56px;padding-top:44px;border-top:1px solid var(--divider);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
.section-head h2{
  font-family:var(--serif);font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);
  margin:0;padding-left:14px;border-left:4px solid var(--copper);
}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;display:flex;flex-direction:column;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(23,48,44,.25);box-shadow:var(--sh-2);}
.rel-meta{font-size:12.8px;color:var(--text-3);margin-bottom:10px;line-height:1.6;}
.rel-card h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink);margin:0 0 10px;}
.rel-card h3 a{color:var(--ink);}
.rel-card h3 a:hover{color:var(--copper);}
.rel-card p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.rel-card .btn-line{margin-top:auto;font-size:14px;}

/* ============ 空态 ============ */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:64px 26px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state .empty-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  border:2px solid rgba(23,48,44,.4);display:flex;align-items:center;justify-content:center;
  color:var(--ink);opacity:.75;font-family:var(--serif);font-size:22px;font-weight:700;
}
.empty-state h1{font-family:var(--serif);font-size:28px;color:var(--ink);margin:0 0 12px;line-height:1.4;}
.empty-state p{font-size:15px;color:var(--text-2);margin:0 0 24px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#E9E3D6;padding:64px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,253,248,.08);border-color:rgba(180,118,60,.45);color:#F3E7D4;}
.footer-brand .brand-text{color:#FFFDF8;font-family:var(--serif);font-size:18px;}
.footer-desc{font-size:14px;line-height:1.9;color:#B9C0B8;margin:0 0 20px;max-width:330px;}
.footer-qr{
  width:88px;height:88px;border-radius:8px;border:1px dashed rgba(255,253,248,.3);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:#A8B0A8;line-height:1.6;
}
.footer-col h4{font-size:15px;color:#F3E7D4;font-family:var(--serif);margin:0 0 16px;font-weight:700;letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{font-size:14px;line-height:2;color:#B9C0B8;}
.footer-col a{color:#B9C0B8;display:inline-block;transition:color .18s ease,transform .18s ease;}
.footer-col a:hover{color:var(--copper);transform:translateX(2px);}
.footer-contact .k{display:inline-block;min-width:44px;color:#8F998F;}
.footer-bottom{
  border-top:1px solid rgba(255,253,248,.12);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#8F998F;
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .article-title{font-size:36px;}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr;gap:44px;}
  .article-body{max-width:none;}
  .article-aside{position:static;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .container{padding:0 20px;}
  .nav-toggle{display:flex;}
  .nav-main{
    display:none;position:absolute;left:0;right:0;top:100%;
    background:var(--card);border-bottom:1px solid var(--divider);box-shadow:var(--sh-2);
    padding:16px 20px 22px;flex-direction:column;align-items:stretch;gap:0;
  }
  .nav-main.show{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-list li{border-bottom:1px solid var(--divider);}
  .nav-list a{display:block;padding:14px 0;font-size:16px;}
  .nav-list a::after{display:none;}
  .nav-list a.active{color:var(--copper);}
  .nav-actions{margin-top:16px;}
  .mega-wrap{width:100%;}
  .mega-trigger{width:100%;justify-content:space-between;}
  .mega-panel{
    position:static;width:100%;max-width:none;opacity:1;visibility:visible;transform:none;
    display:none;grid-template-columns:1fr;box-shadow:none;border-radius:12px;
    padding:18px;margin-top:10px;background:var(--surface);
  }
  .mega-wrap.open .mega-panel{display:grid;}
  .mega-card{background:var(--ink);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-hero{padding:26px 0 24px;}
  .article-title{font-size:30px;}
  .article-content h2{font-size:24px;}
  .section-head h2{font-size:24px;}
}
@media (max-width:767px){
  .topbar-note{font-size:12px;}
  .topbar-links{gap:14px;}
  .brand-text{font-size:17px;}
  .brand-sub{font-size:12px;}
  .article-layout{padding:36px 0 60px;}
  .article-title{font-size:26px;line-height:1.35;}
  .article-content{font-size:16.5px;}
  .article-content h2{font-size:22px;margin-top:1.7em;}
  .article-content h3{font-size:18.5px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .btn-main,.btn-ghost{width:100%;}
  .article-foot .btn-ghost{width:100%;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .breadcrumb-line .current{max-width:200px;}
  .article-hero{padding:20px 0 20px;}
  .article-title{font-size:24px;}
  .meta-row{font-size:13px;gap:9px;}
  .empty-state{padding:44px 18px;}
}

/* roulang page: category1 */
:root{
  --ink:#17302C;
  --ink-deep:#102220;
  --copper:#B4763C;
  --cinnabar:#B8452F;
  --paper:#F6F2EA;
  --card:#FFFDF8;
  --surface:#EFE9DC;
  --text:#1F2422;
  --text-2:#55605B;
  --text-3:#8A908A;
  --line:#E3DCCD;
  --divider:#EAE4D7;
  --moss:#5C7A5E;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --r-lg:16px;
  --r-card:14px;
  --r-img:10px;
  --r-btn:8px;
  --sh-1:0 1px 2px rgba(23,48,44,.06);
  --sh-2:0 10px 28px -14px rgba(23,48,44,.28);
  --sh-3:0 22px 48px -22px rgba(23,48,44,.32);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--copper)}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-inverse{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-family:var(--font-sans);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease-out;
}
.btn-main{background:var(--ink);border-color:var(--ink);color:var(--card)}
.btn-main:hover{background:var(--ink-deep);color:var(--card);transform:translateY(-1px);box-shadow:inset 0 0 0 1px var(--cinnabar),var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(23,48,44,.08);color:var(--ink);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-inverse{background:var(--card);border-color:var(--card);color:var(--ink)}
.btn-inverse:hover{background:var(--paper);border-color:var(--paper);color:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-inverse:active{transform:translateY(0)}
.badge-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(180,118,60,.12);color:var(--copper);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;line-height:1;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(180,118,60,.5);padding-bottom:2px;transition:all .2s ease-out;
}
.link-arrow span{transition:transform .2s ease-out}
.link-arrow:hover{color:var(--copper);border-bottom-color:var(--copper)}
.link-arrow:hover span{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--card);border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.topbar{background:var(--ink);color:#EFE9DC;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:14px;min-width:0}
.topbar a{color:#EFE9DC;font-size:13px}
.topbar a:hover{color:var(--copper)}
.topbar .dot{width:1px;height:12px;background:rgba(239,233,220,.35);display:inline-block}
.topbar .note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(239,233,220,.82)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand:hover .brand-text{color:var(--ink-deep)}
.brand-mark{
  flex:0 0 40px;width:40px;height:40px;border-radius:10px;background:var(--ink);color:var(--paper);
  display:grid;place-items:center;font-family:var(--font-serif);font-size:20px;font-weight:700;line-height:1;
}
.brand-text{display:block;font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.02em;line-height:1.2;color:var(--ink)}
.brand-sub{display:block;font-size:12px;color:var(--text-3);letter-spacing:.08em;line-height:1.4}
.nav-main{display:flex;align-items:center;gap:32px}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-list a{
  position:relative;display:inline-block;padding:10px 0;
  font-size:15.5px;font-weight:600;color:var(--text);white-space:nowrap;
}
.nav-list a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:2px;height:2px;
  background:var(--copper);transition:left .2s ease-out,right .2s ease-out;
}
.nav-list a:hover{color:var(--ink)}
.nav-list a:hover::after,.nav-list a.active::after{left:0;right:0}
.nav-list a.active{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:16px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;position:relative;cursor:pointer;
}
.nav-toggle span{position:absolute;left:12px;top:21px;width:20px;height:2px;background:var(--ink);transition:.2s ease-out}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);transition:.2s ease-out}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* mega */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--card);
  font-size:15px;font-weight:600;color:var(--ink);cursor:pointer;transition:all .18s ease-out;
}
.mega-trigger:hover{border-color:var(--ink);background:var(--surface);color:var(--ink)}
.mega-trigger .caret{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid var(--copper);transition:transform .2s ease-out;
}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 8px);width:920px;max-width:calc(100vw - 48px);
  display:grid;grid-template-columns:1fr 1fr 1fr;gap:28px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-3);padding:26px;z-index:1050;
  opacity:0;visibility:hidden;transform:translateY(2px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s;
}
.mega-wrap:hover .mega-panel,.mega-panel.open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-title{font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--text-3);margin-bottom:14px}
.mega-links li,.mega-news li{margin-bottom:10px}
.mega-links a{font-size:14.5px;color:var(--text);display:inline-block}
.mega-links a:hover{color:var(--copper);transform:translateX(2px)}
.mega-news time{display:block;font-size:12.5px;color:var(--text-3);line-height:1.6}
.mega-news a{font-size:14.5px;color:var(--text);line-height:1.6}
.mega-news a:hover{color:var(--copper)}
.mega-card{
  display:block;background:var(--ink);color:var(--paper);border-radius:var(--r-card);
  padding:22px;min-height:100%;transition:background .2s ease-out;
}
.mega-card:hover{background:var(--ink-deep);color:var(--paper)}
.mega-card strong{display:block;font-family:var(--font-serif);font-size:18px;margin-bottom:8px;color:var(--card)}
.mega-card p{font-size:13.5px;color:rgba(246,242,234,.78);line-height:1.75;margin:0 0 14px}
.mega-card .go{font-size:13.5px;color:var(--copper)}

/* ---------- hero ---------- */
.page-hero{padding:28px 0 64px}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--copper)}
.crumbs .sep{color:var(--line)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.hero-copy h1{font-size:32px;line-height:1.36;margin:16px 0 18px}
.hero-copy p{font-size:16.5px;color:var(--text-2);line-height:1.85;margin-bottom:24px}
.hero-media{margin:0;border-radius:var(--r-lg);overflow:hidden;background:var(--surface);border:1px solid var(--line)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- content ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--surface)}
.section-head{margin-bottom:40px}
.section-head h2{
  font-size:30px;line-height:1.35;position:relative;padding-left:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:20px;background:var(--copper);border-radius:2px;
}
.section-head p{margin:12px 0 0;color:var(--text-2);font-size:16px;max-width:720px}
.content-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:52px;align-items:start}
.toc{position:sticky;top:104px;border-left:1px solid var(--line);padding-left:0}
.toc-title{font-size:13px;letter-spacing:.12em;color:var(--text-3);margin:0 0 12px 18px}
.toc a{
  display:block;padding:9px 14px 9px 18px;margin-left:-1px;
  border-left:2px solid transparent;font-size:15px;color:var(--text-2);line-height:1.6;
  transition:all .18s ease-out;
}
.toc a:hover{color:var(--ink);background:rgba(23,48,44,.05)}
.toc a.active{color:var(--ink);font-weight:600;border-left-color:var(--copper);background:rgba(180,118,60,.08)}
.entry-list{border-top:1px solid var(--divider)}
.entry{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  padding:28px 16px;border-bottom:1px solid var(--divider);border-radius:var(--r-img);
  transition:background .2s ease-out;scroll-margin-top:110px;
}
.entry:hover{background:var(--surface)}
.entry-no{font-family:var(--font-serif);font-size:26px;font-weight:700;color:var(--copper);line-height:1.25}
.entry h3{font-size:20px;line-height:1.5;margin-bottom:10px}
.entry p{font-size:16px;line-height:1.85;color:var(--text-2);margin-bottom:14px}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-item:first-child{border-top:1px solid var(--line)}
.faq .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;background:transparent;border:0;box-shadow:none;
  font-family:var(--font-serif);font-size:17px;font-weight:600;color:var(--text);text-align:left;
}
.faq .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--cinnabar);outline-offset:2px}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"+";order:2;flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--ink);color:var(--ink);display:grid;place-items:center;
  font-family:var(--font-sans);font-size:15px;line-height:1;transition:all .2s ease-out;
}
.faq .accordion-button:not(.collapsed)::before{content:"−";background:var(--ink);color:var(--card)}
.faq .accordion-body{padding:0 0 24px;font-size:16px;line-height:1.85;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:var(--card);font-size:26px;line-height:1.4}
.cta-inner p{color:rgba(246,242,234,.78);font-size:15.5px;margin:10px 0 0;max-width:640px}
.back-row{padding:36px 0 0;text-align:center}
.back-row a{
  font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid rgba(180,118,60,.55);padding-bottom:2px;
}
.back-row a:hover{color:var(--copper);border-bottom-color:var(--copper)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,242,234,.82);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--copper);color:var(--card)}
.footer-brand .brand-text{color:var(--card);font-size:19px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(246,242,234,.7);margin:0 0 18px;max-width:300px}
.footer-qr{
  width:88px;height:88px;border-radius:8px;border:1px dashed rgba(246,242,234,.35);
  display:grid;place-items:center;text-align:center;font-size:12.5px;line-height:1.5;
  color:rgba(246,242,234,.6);
}
.footer-col h4{font-size:15px;font-family:var(--font-sans);font-weight:600;color:var(--card);margin-bottom:16px;letter-spacing:.04em}
.footer-col li{margin-bottom:8px}
.footer-col a{font-size:14px;line-height:2;color:rgba(246,242,234,.78);display:inline-block;transition:all .18s ease-out}
.footer-col a:hover{color:var(--copper);transform:translateX(-2px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:2;margin-bottom:6px}
.footer-contact .k{color:rgba(246,242,234,.5);flex:0 0 34px}
.footer-contact a{color:rgba(246,242,234,.82)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(246,242,234,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(246,242,234,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  :root{--sec-y:84px}
  .content-grid{grid-template-columns:220px minmax(0,1fr);gap:36px}
  .mega-panel{width:780px}
}
@media (max-width:991px){
  :root{--sec-y:72px}
  .container{padding-left:22px;padding-right:22px}
  .nav-toggle{display:block}
  .nav-row{flex-wrap:wrap;min-height:68px;padding:12px 0;gap:12px}
  .nav-main{
    display:none;flex-basis:100%;flex-direction:column;align-items:stretch;gap:8px;
    border-top:1px solid var(--divider);padding-top:14px;
  }
  .nav-main.show{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-list a{padding:14px 4px;border-bottom:1px solid var(--divider);font-size:16px;min-height:44px;display:flex;align-items:center}
  .nav-list a::after{display:none}
  .nav-list a.active{color:var(--copper)}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;padding-top:8px}
  .mega-trigger{width:100%;justify-content:space-between;height:46px}
  .mega-panel{
    position:static;width:100%;max-width:none;grid-template-columns:1fr;gap:20px;
    display:none;opacity:1;visibility:visible;transform:none;box-shadow:none;margin-top:10px;
  }
  .mega-panel.open{display:grid}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy h1{font-size:29px}
  .hero-copy p{font-size:16px}
  .hero-media img{aspect-ratio:16/10}
  .content-grid{grid-template-columns:1fr;gap:28px}
  .toc{position:static;border-left:0;border-bottom:1px solid var(--divider);padding-bottom:16px}
  .toc-title{margin-left:0}
  .toc ul{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
  .toc a{border-left:0;border:1px solid var(--line);border-radius:999px;padding:8px 14px;margin-left:0;font-size:14px;min-height:38px}
  .toc a.active{border-color:var(--ink);background:var(--ink);color:var(--card)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner h2{font-size:23px}
  .topbar .note{display:none}
}
@media (max-width:575px){
  :root{--sec-y:56px}
  .container{padding-left:18px;padding-right:18px}
  .topbar{display:none}
  body{font-size:16.5px}
  .brand-text{font-size:17px}
  .brand-sub{font-size:11px}
  .page-hero{padding:22px 0 44px}
  .hero-copy h1{font-size:26px;line-height:1.32}
  .hero-copy p{font-size:15.8px;margin-bottom:20px}
  .section-head h2{font-size:23px}
  .section-head h2::before{height:17px}
  .entry{grid-template-columns:1fr;gap:8px;padding:22px 10px}
  .entry-no{font-size:22px}
  .entry h3{font-size:18px}
  .entry p{font-size:15.5px}
  .faq .accordion-button{font-size:16px;padding:18px 0}
  .cta-band{padding:44px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
  .cta-inner .btn-inverse{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn-main,.btn-ghost{width:100%}
  .hero-media img{aspect-ratio:16/10}
}

/* roulang page: category2 */
:root{
  --ink:#17302C;
  --ink-deep:#102220;
  --bronze:#B4763C;
  --cinnabar:#B8452F;
  --paper:#F6F2EA;
  --card:#FFFDF8;
  --sub:#EFE9DC;
  --text:#1F2422;
  --text-2:#55605B;
  --text-3:#8A908A;
  --border:#E3DCCD;
  --line:#EAE4D7;
  --moss:#5C7A5E;
  --r-card:14px;
  --r-img:10px;
  --r-btn:8px;
  --sh1:0 1px 2px rgba(23,48,44,.06);
  --sh2:0 10px 28px -14px rgba(23,48,44,.28);
  --sh3:0 22px 48px -22px rgba(23,48,44,.32);
  --serif:"Songti SC","STSong","Noto Serif SC","Source Han Serif SC","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out,transform .18s ease-out;}
a:hover{color:var(--bronze);}
h1,h2,h3,h4,h5{
  font-family:var(--serif);
  color:var(--ink);
  font-weight:700;
  letter-spacing:.01em;
  margin:0;
}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cinnabar);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  min-height:44px;
}
.btn-main{background:var(--ink);color:#FFFDF8;border-color:var(--ink);}
.btn-main:hover{background:var(--ink-deep);color:#FFFDF8;border-color:var(--ink-deep);box-shadow:var(--sh2),inset 0 0 0 1px var(--cinnabar);transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh1);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(23,48,44,.08);color:var(--ink);}
.btn-ghost:active{background:rgba(23,48,44,.14);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--card);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.info-bar{background:var(--ink);color:#EDE6D8;font-size:13px;}
.info-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.info-left{display:flex;align-items:center;gap:10px;min-width:0;}
.info-left span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.live-dot{width:7px;height:7px;border-radius:50%;background:#84B183;box-shadow:0 0 0 3px rgba(132,177,131,.22);flex:none;animation:pulse 2.4s ease-in-out infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.32;}}
.info-links{display:flex;gap:20px;flex:none;}
.info-links a{color:#D9D2C2;font-size:13px;}
.info-links a:hover{color:var(--bronze);}

.nav-row{display:flex;align-items:center;gap:24px;min-height:76px;}
.brand{display:flex;align-items:center;gap:12px;flex:none;}
.brand-mark{
  width:40px;height:40px;border-radius:10px;background:var(--ink);color:#F6F2EA;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:20px;font-weight:700;line-height:1;flex:none;
}
.brand-text{
  display:block;font-family:var(--serif);font-size:19px;font-weight:700;
  color:var(--ink);letter-spacing:.02em;line-height:1.25;
}
.brand-sub{display:block;font-size:11.5px;color:var(--text-3);letter-spacing:.08em;line-height:1.5;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:8px;
  background:var(--card);position:relative;margin-left:auto;flex:none;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;background:var(--ink);border-radius:2px;content:"";
  transition:background .18s;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle:hover{border-color:var(--ink);}

.nav-list{display:flex;align-items:center;gap:28px;}
.nav-list a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15.5px;font-weight:600;color:var(--text-2);
}
.nav-list a::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--bronze);transition:left .2s ease-out,right .2s ease-out;
}
.nav-list a:hover{color:var(--ink);}
.nav-list a:hover::after{left:0;right:0;}
.nav-list a.active{color:var(--ink);}
.nav-list a.active::after{left:0;right:0;}

.nav-actions{display:flex;align-items:center;gap:16px;}
.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 16px;border-radius:8px;
  border:1px solid var(--border);background:var(--sub);color:var(--ink);
  font-size:14.5px;font-weight:600;cursor:pointer;
  transition:all .18s ease-out;min-height:44px;
}
.mega-trigger:hover{border-color:var(--ink);background:#fff;}
.caret{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid var(--bronze);transition:transform .2s ease-out;
}
.mega-wrap.open .caret{transform:rotate(180deg);}

.mega-panel{
  position:absolute;top:calc(100% + 8px);right:0;
  width:900px;max-width:calc(100vw - 48px);
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh3);padding:28px;
  display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(2px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s ease-out;
  z-index:20;
}
.mega-wrap.open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
@media (min-width:992px) and (hover:hover){
  .mega-wrap:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
}
.mega-title{
  font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--bronze);
  margin-bottom:14px;font-family:var(--sans);
}
.mega-links li{margin-bottom:10px;}
.mega-links a{font-size:14.5px;color:var(--text-2);}
.mega-links a:hover{color:var(--ink);padding-left:2px;}
.mega-news li{margin-bottom:14px;}
.mega-news time{display:block;font-size:12px;color:var(--text-3);line-height:1.6;}
.mega-news a{font-size:14.5px;color:var(--text);line-height:1.55;display:block;}
.mega-news a:hover{color:var(--bronze);}
.mega-card{
  background:var(--ink);color:#F3EEE2;border-radius:12px;padding:22px;
  display:flex;flex-direction:column;justify-content:space-between;gap:18px;min-height:160px;
}
.mega-card-tag{
  display:inline-block;font-size:11.5px;letter-spacing:.14em;color:var(--bronze);
  background:rgba(180,118,60,.16);border-radius:999px;padding:2px 10px;margin-bottom:10px;
}
.mega-card h5{font-size:17px;color:#FBF7EC;margin-bottom:8px;line-height:1.45;}
.mega-card p{font-size:13px;line-height:1.7;color:rgba(243,238,226,.72);margin:0;}
.mega-card-link{font-size:13.5px;font-weight:600;color:#F0C48F;display:inline-flex;align-items:center;gap:6px;}
.mega-card-link:hover{color:#fff;}

/* ---------- 页面主视觉 ---------- */
.page-hero{position:relative;background:var(--ink);color:#F3EEE2;overflow:hidden;}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,34,32,.55) 0%,rgba(16,34,32,.94) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{padding:56px 0 60px;max-width:860px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(243,238,226,.62);margin-bottom:20px;}
.crumb a{color:rgba(243,238,226,.86);}
.crumb a:hover{color:var(--bronze);}
.hero-badge{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.1em;
  padding:3px 12px;border-radius:999px;
  background:rgba(180,118,60,.2);color:#E4B98A;margin-bottom:16px;
}
.page-hero h1{
  color:#FBF7EC;font-size:32px;line-height:1.34;margin-bottom:16px;max-width:760px;
}
.hero-lead{font-size:17px;line-height:1.8;color:rgba(243,238,226,.82);margin:0;max-width:640px;}
.pill-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid rgba(243,238,226,.34);background:transparent;
  color:rgba(243,238,226,.86);font-size:14px;font-weight:600;cursor:pointer;
  transition:all .18s ease-out;min-height:44px;
}
.pill:hover{border-color:var(--bronze);color:#fff;background:rgba(180,118,60,.14);}
.pill.active{background:#F6F2EA;color:var(--ink);border-color:#F6F2EA;}
.pill.active:hover{background:#fff;color:var(--ink-deep);}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section--sub{background:var(--sub);}
.section-head{margin-bottom:40px;}
.section-head h2{
  font-size:30px;line-height:1.35;
  border-left:4px solid var(--bronze);padding-left:14px;
}
.section-head p{font-size:16px;color:var(--text-2);margin:14px 0 0 18px;max-width:680px;}
.section-lead-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 案例卡片 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.case-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(23,48,44,.25);}
.case-cover{display:block;background:var(--sub);}
.case-cover img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;
  transition:transform .35s ease-out;
}
.case-card:hover .case-cover img{transform:scale(1.02);}
.case-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.badge-cat{
  align-self:flex-start;font-size:12.5px;font-weight:600;line-height:24px;height:24px;
  padding:0 12px;border-radius:999px;
  background:rgba(180,118,60,.12);color:var(--bronze);margin-bottom:12px;
}
.case-body h3{font-size:19px;line-height:1.5;margin-bottom:10px;}
.case-body p{
  font-size:15px;line-height:1.8;color:var(--text-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.link-arrow{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);align-self:flex-start;
}
.link-arrow::after{content:"→";color:var(--bronze);transition:transform .18s ease-out;}
.link-arrow:hover{color:var(--bronze);}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 步骤时间轴 ---------- */
.steps{position:relative;padding-left:40px;max-width:840px;}
.steps::before{
  content:"";position:absolute;left:10px;top:10px;bottom:10px;width:2px;
  background:var(--bronze);opacity:.45;
}
.step{position:relative;padding-bottom:36px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:-40px;top:6px;width:22px;height:22px;
  border-radius:50%;background:var(--card);border:2px solid var(--bronze);
  box-shadow:0 0 0 4px var(--paper);
}
.step-num{
  display:inline-block;font-family:var(--serif);font-size:14px;font-weight:700;
  letter-spacing:.14em;color:var(--bronze);margin-bottom:6px;
}
.step h3{font-size:20px;line-height:1.45;margin-bottom:8px;}
.step p{font-size:15.5px;line-height:1.8;color:var(--text-2);margin:0;}

/* ---------- 指标条 ---------- */
.metrics-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);
}
.metric{padding:28px 22px;border-right:1px solid var(--border);text-align:center;}
.metric:last-child{border-right:0;}
.metric-num{
  font-family:var(--serif);font-size:42px;font-weight:700;line-height:1.1;color:var(--ink);
}
.metric-num small{font-size:14px;font-weight:400;color:var(--text-2);margin-left:4px;font-family:var(--sans);}
.metric-label{font-size:13.5px;color:var(--text-2);margin-top:8px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:760px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 0;background:none;border:0;text-align:left;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);cursor:pointer;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--bronze);}
.faq-q[aria-expanded="true"]{color:var(--ink);}
.faq-q .ico{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--ink);
  position:relative;transition:border-color .2s ease-out;
}
.faq-q .ico::before,.faq-q .ico::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--ink);transition:opacity .2s ease-out,background .2s;
}
.faq-q .ico::before{width:11px;height:1.5px;}
.faq-q .ico::after{width:1.5px;height:11px;}
.faq-q[aria-expanded="true"] .ico{border-color:var(--bronze);}
.faq-q[aria-expanded="true"] .ico::before,
.faq-q[aria-expanded="true"] .ico::after{background:var(--bronze);}
.faq-q[aria-expanded="true"] .ico::after{opacity:0;}
.faq-a{padding:0 0 24px;font-size:16px;line-height:1.85;color:var(--text-2);max-width:680px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);color:#F3EEE2;border-radius:16px;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;box-shadow:var(--sh3);
}
.cta-band h2{font-size:28px;line-height:1.35;color:#FBF7EC;margin-bottom:10px;}
.cta-band p{font-size:16px;line-height:1.8;color:rgba(243,238,226,.78);margin:0;max-width:520px;}
.cta-band .btn-main{background:#F6F2EA;color:var(--ink);border-color:#F6F2EA;}
.cta-band .btn-main:hover{background:#fff;color:var(--ink-deep);border-color:#fff;box-shadow:var(--sh2),inset 0 0 0 1px var(--bronze);}
.back-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#DDD6C6;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(246,242,234,.12);color:#F6F2EA;width:36px;height:36px;border-radius:9px;font-size:18px;}
.footer-brand .brand-text{font-family:var(--serif);font-size:19px;color:#FBF7EC;font-weight:700;letter-spacing:.02em;line-height:1.3;}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(221,214,198,.75);max-width:320px;margin:0;}
.footer-qr{
  width:88px;height:88px;border-radius:8px;border:1px dashed rgba(221,214,198,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.55;color:rgba(221,214,198,.7);margin-top:18px;
}
.footer-col h4{font-size:15px;color:#F0E9D9;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin:0;}
.footer-col ul a{font-size:14px;line-height:2;color:rgba(221,214,198,.78);display:inline-block;}
.footer-col ul a:hover{color:var(--bronze);transform:translateX(2px);}
.footer-contact li{font-size:14px;line-height:2;color:rgba(221,214,198,.85);}
.footer-contact .k{display:inline-block;width:44px;font-size:13px;color:rgba(221,214,198,.5);}
.footer-contact a{font-size:14px;color:rgba(221,214,198,.85);}
.footer-contact a:hover{color:var(--bronze);}
.footer-bottom{
  border-top:1px solid rgba(221,214,198,.16);padding:18px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(221,214,198,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .case-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section-head h2{font-size:26px;}
  .page-hero h1{font-size:28px;}
  .hero-inner{padding:44px 0 48px;}
  .case-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--border);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px 32px;}

  .nav-toggle{display:block;}
  .nav-row{flex-wrap:wrap;padding:12px 0;min-height:0;gap:0;}
  .nav-main{padding-top:10px;}
  .nav-main.collapse:not(.show){display:none;}
  .nav-main.show{display:block;}
  .nav-list{
    flex-direction:column;align-items:stretch;gap:0;
    border-top:1px solid var(--line);margin-top:6px;
  }
  .nav-list li{border-bottom:1px solid var(--line);}
  .nav-list a{padding:14px 2px;font-size:16px;display:block;}
  .nav-list a::after{display:none;}
  .nav-list a.active{color:var(--bronze);}
  .nav-actions{width:100%;margin-top:14px;}
  .mega-wrap{width:100%;}
  .mega-trigger{width:100%;justify-content:space-between;}
  .mega-panel{
    position:static;width:100%;max-width:none;
    box-shadow:none;border-radius:10px;padding:18px;
    grid-template-columns:1fr;gap:18px;margin-top:10px;
    opacity:1;visibility:visible;transform:none;display:none;
  }
  .mega-wrap.open .mega-panel{display:grid;}
}
@media (max-width:767.98px){
  .info-bar{display:none;}
  .brand-text{font-size:17.5px;}
  .brand-sub{display:none;}
  .section-head p{margin-left:18px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  body{font-size:16.5px;}
  .page-hero h1{font-size:26px;}
  .hero-lead{font-size:16px;}
  .hero-inner{padding:36px 0 42px;}
  .pill{font-size:13.5px;padding:0 15px;}
  .case-grid{grid-template-columns:1fr;gap:16px;}
  .section-head h2{font-size:22px;}
  .metric-num{font-size:34px;}
  .metrics-strip{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--border);}
  .metric:last-child{border-bottom:0;}
  .steps{padding-left:34px;}
  .steps::before{left:8px;}
  .step::before{left:-34px;width:18px;height:18px;top:7px;}
  .cta-band{padding:28px 22px;border-radius:14px;}
  .cta-band .btn-main{width:100%;}
  .back-row .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}