/* roulang page: index */
:root{
  --paper:#F6F3EC;
  --paper-2:#EDE7DA;
  --ink:#0E2B26;
  --ink-2:#1C3B34;
  --copper:#C0642F;
  --copper-soft:#E8D3C2;
  --line:#D9D2C3;
  --up:#2E7D63;
  --down:#A63A34;
  --muted:#6B675C;
  --radius-card:4px;
  --radius-btn:3px;
  --shadow-1:0 1px 2px rgba(14,43,38,.06);
  --shadow-2:0 6px 18px rgba(14,43,38,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--copper);text-decoration:underline;text-underline-offset:3px;transition:color .22s ease;}
a:hover{color:var(--ink);}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;margin:0;color:var(--ink);letter-spacing:.01em;}
h1{font-size:42px;line-height:1.25;}
h2{font-size:27px;line-height:1.35;}
h3{font-size:19px;line-height:1.45;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:var(--copper-soft);color:var(--ink);}
.container.site-container{
  width:100%;
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
  margin-left:auto;
  margin-right:auto;
}
.mono{font-family:var(--mono);font-weight:600;letter-spacing:.02em;}
.section{padding:72px 0;border-top:1px solid var(--line);}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink);color:var(--paper);border-top:1px solid var(--ink);}
.section--ink h2,.section--ink h3{color:var(--paper);}
.section-head{margin-bottom:34px;max-width:760px;}
.section-title{position:relative;padding-left:16px;margin-bottom:10px;}
.section-title::before{
  content:"";position:absolute;left:0;top:4px;width:3px;height:24px;background:var(--copper);
}
.section-note{font-size:14px;color:var(--muted);line-height:1.85;}
.section--ink .section-note{color:rgba(246,243,236,.72);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--copper);font-family:var(--mono);font-weight:600;margin-bottom:14px;
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;}
.btn:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.btn-ink{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-ink:hover{background:var(--copper);border-color:var(--copper);color:var(--paper);}
.btn-ink:active{transform:translateY(1px);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink);text-decoration:none;}
.btn-line:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink);}
.btn-copper{background:var(--copper);color:#fff;border-color:var(--copper);}
.btn-copper:hover{background:#A8541F;border-color:#A8541F;color:#fff;}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:2px;
  font-size:12px;line-height:1.6;background:var(--paper-2);border:1px solid var(--line);color:var(--ink-2);
}
.badge-copper{background:var(--copper-soft);border-color:#D8B79C;color:#8B3F17;}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(14,43,38,.08);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:18px;letter-spacing:.02em;white-space:nowrap;}
.brand-badge{
  font-family:var(--sans);font-size:11px;font-weight:500;line-height:1;padding:4px 6px;
  border:1px solid var(--copper);color:var(--copper);border-radius:2px;white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  color:var(--ink-2);text-decoration:none;font-size:15px;white-space:nowrap;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:16px;height:2px;width:100%;background:var(--copper);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--copper);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-download{
  display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 18px;
  border:1px solid var(--copper);color:var(--copper);border-radius:3px;font-size:14px;
  text-decoration:none;white-space:nowrap;transition:background-color .22s ease,color .22s ease;
}
.nav-download:hover{background:var(--copper);color:#fff;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;
  margin-left:auto;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease;}
.nav-toggle:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:var(--paper);
  z-index:1060;transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;box-shadow:-8px 0 24px rgba(14,43,38,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 18px;color:var(--ink-2);
  text-decoration:none;border-bottom:1px solid var(--line);font-size:15px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--copper);}
.drawer-foot{margin-top:auto;padding:16px 18px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}
.drawer-mask{position:fixed;inset:0;background:rgba(14,43,38,.42);opacity:0;visibility:hidden;transition:opacity .28s ease;z-index:1050;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
body.no-scroll{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{padding:64px 0 60px;border-bottom:1px solid var(--line);background:
  repeating-linear-gradient(180deg,rgba(217,210,195,.30) 0 1px,transparent 1px 48px),
  var(--paper);}
.hero-head{max-width:860px;margin-bottom:38px;}
.hero h1{font-size:44px;margin-bottom:14px;max-width:22em;}
.hero-sub{font-size:17px;color:var(--ink-2);font-weight:500;margin-bottom:14px;}
.hero-desc{font-size:15px;color:var(--muted);max-width:780px;line-height:1.85;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.hero-badges a{text-decoration:none;}
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.compare-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);min-width:0;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.compare-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.compare-card--plan{background:var(--paper-2);border-left:3px solid var(--copper);}
.compare-card .cc-label{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--copper);font-weight:600;display:block;margin-bottom:8px;}
.compare-card h3{font-size:18px;margin-bottom:14px;}
.compare-list li{
  display:flex;gap:10px;font-size:14px;line-height:1.8;color:var(--ink-2);
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list li::before{content:"·";color:var(--copper);font-weight:700;line-height:1.6;}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid rgba(246,243,236,.16);border-left:1px solid rgba(246,243,236,.16);}
.metric{
  border-right:1px solid rgba(246,243,236,.16);border-bottom:1px solid rgba(246,243,236,.16);
  padding:22px 20px;min-width:0;
}
.metric .m-name{font-size:12px;letter-spacing:.1em;color:rgba(246,243,236,.62);margin-bottom:10px;}
.metric .m-value{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--copper);line-height:1.2;letter-spacing:.02em;}
.metric .m-note{margin-top:12px;padding-top:10px;border-top:1px solid rgba(246,243,236,.16);font-size:12px;color:rgba(246,243,236,.62);line-height:1.7;}

/* ---------- 下载 ---------- */
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.dl-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;display:flex;flex-direction:column;gap:12px;min-width:0;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.dl-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.dl-icon{
  width:44px;height:44px;border-radius:3px;background:var(--ink);color:var(--paper);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.dl-card h3{font-size:18px;}
.dl-card p{font-size:13px;color:var(--muted);line-height:1.8;}
.dl-card .btn{width:100%;border-radius:999px;margin-top:4px;}
.dl-foot-note{margin-top:18px;font-size:12px;color:var(--muted);}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line);background:var(--paper);}
.matrix-item{
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 22px;
  min-width:0;display:flex;flex-direction:column;gap:10px;background:var(--paper);
  transition:background-color .22s ease;
}
.matrix-item:hover{background:var(--paper-2);}
.matrix-item .m-index{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--copper);letter-spacing:.08em;}
.matrix-item h3{font-size:17px;line-height:1.5;}
.matrix-item ul li{font-size:13px;color:var(--muted);line-height:1.8;padding-left:14px;position:relative;}
.matrix-item ul li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:1px;background:var(--copper);}
.matrix-item .m-link{margin-top:auto;font-size:13px;}

/* ---------- 对比表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);}
.table-scroll::-webkit-scrollbar{height:8px;}
.table-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px;}
table.cmp{width:100%;border-collapse:collapse;min-width:620px;font-size:14px;}
table.cmp thead th{
  background:var(--paper-2);text-align:left;padding:14px 18px;font-family:var(--sans);
  font-weight:700;font-size:14px;border-bottom:1px solid var(--line);white-space:nowrap;
  position:sticky;top:0;z-index:1;color:var(--ink);
}
table.cmp thead th:first-child{color:var(--ink-2);}
table.cmp thead th:last-child{color:var(--copper);}
table.cmp tbody td{padding:13px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;line-height:1.75;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody td:first-child{color:var(--muted);white-space:nowrap;}
table.cmp tbody td:last-child{font-family:var(--mono);font-weight:600;color:var(--copper);}

/* ---------- 里程碑 ---------- */
.mile-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.mile{position:relative;padding-top:26px;min-width:0;}
.mile::before{content:"";position:absolute;top:7px;left:0;right:0;height:1px;background:var(--line);}
.mile::after{content:"";position:absolute;top:3px;left:0;width:9px;height:9px;border-radius:50%;background:var(--copper);}
.mile .mile-step{font-family:var(--mono);font-size:12px;color:var(--copper);font-weight:600;letter-spacing:.08em;margin-bottom:6px;}
.mile h3{font-size:16px;margin-bottom:8px;}
.mile p{font-size:13px;color:var(--muted);line-height:1.8;}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;}
.news-featured{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;min-width:0;}
.news-card{
  display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;text-decoration:none;color:var(--ink);
  min-width:0;transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.news-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);color:var(--ink);}
.news-thumb{
  position:relative;aspect-ratio:16/9;background:var(--ink-2);
  background-image:
    repeating-linear-gradient(90deg,rgba(246,243,236,.10) 0 1px,transparent 1px 26px),
    repeating-linear-gradient(180deg,rgba(246,243,236,.07) 0 1px,transparent 1px 26px);
  display:flex;align-items:flex-end;padding:12px;
}
.news-thumb .thumb-tag{
  font-size:12px;padding:3px 8px;background:var(--copper-soft);color:#8B3F17;border-radius:2px;
  font-family:var(--sans);line-height:1.6;
}
.news-card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;min-width:0;}
.news-card h3{
  font-size:16px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card p{
  font-size:13px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card .meta{font-size:12px;color:var(--muted);font-family:var(--mono);margin-top:auto;}
.news-list{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.news-row{
  display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line);
  text-decoration:none;color:var(--ink);min-width:0;
}
.news-row:hover{color:var(--copper);}
.news-row .row-date{font-family:var(--mono);font-size:12px;color:var(--muted);white-space:nowrap;padding-top:3px;flex-shrink:0;}
.news-row .row-body{min-width:0;flex:1 1 auto;}
.news-row h3{font-size:15px;line-height:1.55;font-family:var(--sans);font-weight:500;}
.news-row .row-tag{display:inline-block;margin-top:6px;font-size:11px;padding:2px 7px;background:var(--paper-2);border:1px solid var(--line);border-radius:2px;color:var(--muted);}
.news-empty{
  border:1px dashed var(--line);border-radius:var(--radius-card);padding:52px 20px;text-align:center;
  color:var(--muted);font-size:14px;background:var(--paper);
}
.news-empty a{display:inline-block;margin-top:12px;}

/* ---------- 保障 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.guard{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px 20px;min-width:0;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;}
.guard:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.guard .g-icon{
  width:34px;height:34px;border:1px solid var(--copper);border-radius:3px;color:var(--copper);
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:600;margin-bottom:14px;
}
.guard h3{font-size:16px;margin-bottom:8px;}
.guard p{font-size:13px;color:var(--muted);line-height:1.8;}

/* ---------- 快速解答 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;}
.quick-item{border-left:3px solid var(--copper);padding:6px 20px;min-width:0;}
.quick-item h3{font-size:14px;font-family:var(--sans);font-weight:700;margin-bottom:6px;}
.quick-item p{font-size:13px;color:var(--muted);line-height:1.8;}

/* ---------- FAQ ---------- */
.fin-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;}
.fin-accordion .accordion-item:first-of-type{border-top:1px solid var(--line);}
.fin-accordion .accordion-header{margin:0;}
.fin-accordion .accordion-button{
  background:transparent;color:var(--ink);font-family:var(--serif);font-size:17px;font-weight:700;
  padding:20px 44px 20px 0;border-radius:0;box-shadow:none;line-height:1.5;
}
.fin-accordion .accordion-button:not(.collapsed){color:var(--copper);background:transparent;box-shadow:none;}
.fin-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--copper);outline-offset:-2px;}
.fin-accordion .accordion-button::after{display:none;}
.fin-accordion .accordion-button::before{
  content:"+";position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:20px;color:var(--copper);font-weight:500;
}
.fin-accordion .accordion-button:not(.collapsed)::before{content:"−";}
.fin-accordion .accordion-body{padding:0 40px 22px 0;font-size:14px;color:var(--muted);line-height:1.9;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;position:relative;}
.step{position:relative;min-width:0;padding-right:14px;}
.step::after{content:"";position:absolute;top:18px;right:-10px;width:20px;border-top:1px dashed var(--line);}
.step:last-child::after{display:none;}
.step .s-num{font-family:var(--mono);font-size:32px;font-weight:600;color:var(--copper-soft);line-height:1;margin-bottom:10px;}
.step h3{font-size:16px;margin-bottom:6px;}
.step p{font-size:13px;color:var(--muted);line-height:1.8;}
.steps-cta{margin-top:32px;}

/* ---------- 知识卡 ---------- */
.know-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.know{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 22px;display:flex;flex-direction:column;gap:10px;min-width:0;
  transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;}
.know:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.know h3{font-size:18px;}
.know p{font-size:13px;color:var(--muted);line-height:1.85;}
.know .k-link{margin-top:auto;font-size:13px;}

/* ---------- 风险提示 ---------- */
.risk-band{background:var(--copper-soft);border-top:1px solid #D8B79C;border-bottom:1px solid #D8B79C;padding:36px 0;}
.risk-inner{display:flex;gap:20px;align-items:flex-start;}
.risk-icon{
  flex-shrink:0;width:40px;height:40px;border-radius:3px;border:1px solid #B9754A;color:#8B3F17;
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:600;font-size:18px;background:rgba(255,255,255,.35);
}
.risk-inner h2{font-size:20px;margin-bottom:10px;color:#5C2A10;}
.risk-inner p{font-size:13px;line-height:1.9;color:#6B3A1E;}

/* ---------- 表单 ---------- */
.contact-inner{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:start;}
.contact-copy h2{color:var(--paper);margin-bottom:12px;}
.contact-copy p{font-size:14px;color:rgba(246,243,236,.72);line-height:1.9;}
.lead-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;min-width:0;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:rgba(246,243,236,.82);}
.field input,.field select{
  width:100%;min-height:44px;padding:10px 12px;border-radius:3px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink);font-size:14px;font-family:inherit;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--copper);box-shadow:0 0 0 3px rgba(192,100,47,.18);
}
.field input:invalid:not(:placeholder-shown){border-color:var(--down);}
.check-row{grid-column:1 / -1;display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(246,243,236,.78);line-height:1.7;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--copper);flex-shrink:0;}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.form-actions .btn{min-width:200px;}
.form-note{grid-column:1 / -1;font-size:12px;color:rgba(246,243,236,.58);line-height:1.8;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,2fr) minmax(0,2fr) minmax(0,3fr);gap:32px;}
.footer-brand .brand-mark{color:var(--paper);font-size:18px;}
.footer-brand .brand-badge{border-color:var(--copper);color:var(--copper);}
.footer-brand p{margin-top:14px;font-size:13px;color:rgba(246,243,236,.66);line-height:1.9;max-width:320px;}
.footer-col h3{font-family:var(--sans);font-size:14px;color:var(--paper);margin-bottom:14px;font-weight:700;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:var(--paper-2);text-decoration:none;font-size:13px;transition:color .22s ease;}
.footer-col a:hover{color:var(--copper);}
.footer-dl{display:flex;flex-direction:column;gap:10px;}
.footer-dl a{
  display:inline-flex;align-items:center;justify-content:space-between;gap:8px;min-height:40px;padding:0 14px;
  border:1px solid rgba(246,243,236,.24);border-radius:3px;color:var(--paper-2);text-decoration:none;font-size:13px;
  transition:border-color .22s ease,color .22s ease,background-color .22s ease;
}
.footer-dl a:hover{border-color:var(--copper);color:var(--copper);background:rgba(192,100,47,.08);}
.footer-dl a span.tag{font-family:var(--mono);font-size:11px;color:rgba(246,243,236,.5);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(246,243,236,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12px;
  color:rgba(246,243,236,.56);
}
.footer-bottom .risk-line{max-width:640px;line-height:1.8;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  h1,.hero h1{font-size:38px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mile-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:1fr;}
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px;}
  .step::after{display:none;}
}
@media (max-width:991.98px){
  .site-nav,.nav-download{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 44px;}
  .compare-grid{grid-template-columns:1fr;}
  .download-grid{grid-template-columns:1fr;}
  .news-featured{grid-template-columns:1fr;}
  .know-grid{grid-template-columns:1fr;}
  .quick-grid{grid-template-columns:1fr;gap:22px;}
  .contact-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767.98px){
  h1,.hero h1{font-size:29px;line-height:1.3;}
  h2,.section-title{font-size:22px;}
  .section{padding:44px 0;}
  .container.site-container{padding-left:16px;padding-right:16px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .matrix{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .mile-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;row-gap:24px;}
  .lead-form{grid-template-columns:1fr;}
  .form-actions .btn{width:100%;min-width:0;}
  .risk-inner{flex-direction:column;gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519.98px){
  .hero-actions .btn{width:100%;}
  .brand-mark{font-size:16px;}
  .metric .m-value{font-size:24px;}
  .quick-item{padding:6px 14px;}
}

/* roulang page: article */
:root{
  --paper:#F6F3EC;
  --paper-2:#EDE7DA;
  --ink:#0E2B26;
  --ink-2:#1C3B34;
  --copper:#C0642F;
  --copper-soft:#E8D3C2;
  --line:#D9D2C3;
  --up:#2E7D63;
  --down:#A63A34;
  --muted:#6B675C;
  --radius-card:4px;
  --radius-btn:3px;
  --shadow-1:0 1px 2px rgba(14,43,38,.06);
  --shadow-2:0 6px 18px rgba(14,43,38,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--copper);text-decoration:underline;text-underline-offset:3px;transition:color .22s ease;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;}
.container.site-container{
  width:100%;max-width:1200px;padding-left:20px;padding-right:20px;
  margin-left:auto;margin-right:auto;
}
.mono{font-family:var(--mono);font-weight:600;letter-spacing:.02em;}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;}
.btn:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.btn-ink{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-ink:hover{background:var(--copper);border-color:var(--copper);color:var(--paper);}
.btn-ink:active{transform:translateY(1px);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-line:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink);}
.btn-copper{background:var(--copper);color:#fff;border-color:var(--copper);}
.btn-copper:hover{background:#A8541F;border-color:#A8541F;color:#fff;}
.btn-sm{min-height:38px;padding:0 14px;font-size:13px;}
.btn-block{display:flex;width:100%;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:2px;
  font-size:12px;line-height:1.6;background:var(--paper-2);border:1px solid var(--line);color:var(--ink-2);
  text-decoration:none;
}
.badge-copper{background:var(--copper-soft);border-color:#D8B79C;color:#8B3F17;}
/* 头部 */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(14,43,38,.08);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:18px;letter-spacing:.02em;white-space:nowrap;}
.brand-badge{
  font-family:var(--sans);font-size:11px;font-weight:500;line-height:1;padding:4px 6px;
  border:1px solid var(--copper);color:var(--copper);border-radius:2px;white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  color:var(--ink-2);text-decoration:none;font-size:15px;white-space:nowrap;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:16px;height:2px;width:100%;background:var(--copper);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--copper);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-download{
  display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 18px;
  border:1px solid var(--copper);color:var(--copper);border-radius:3px;font-size:14px;
  text-decoration:none;white-space:nowrap;transition:background-color .22s ease,color .22s ease;
}
.nav-download:hover{background:var(--copper);color:#fff;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;
  margin-left:auto;cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease;}
.nav-toggle:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:var(--paper);
  z-index:1060;transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;box-shadow:-8px 0 24px rgba(14,43,38,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;}
.drawer-close:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 18px;color:var(--ink-2);
  text-decoration:none;border-bottom:1px solid var(--line);font-size:15px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--copper);}
.drawer-foot{margin-top:auto;padding:16px 18px;border-top:1px solid var(--line);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,43,38,.42);z-index:1050;opacity:0;
  pointer-events:none;transition:opacity .26s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
body.drawer-open{overflow:hidden;}
/* 通用板块 */
.section{padding:72px 0;border-top:1px solid var(--line);}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink);color:var(--paper);border-top:1px solid var(--ink);}
.section--ink h2,.section--ink h3{color:var(--paper);}
.section-title{position:relative;padding-left:16px;margin-bottom:10px;font-size:26px;line-height:1.35;}
.section-title::before{content:"";position:absolute;left:0;top:5px;width:3px;height:24px;background:var(--copper);}
.section-note{font-size:14px;color:var(--muted);line-height:1.85;margin:0;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--copper);font-family:var(--mono);font-weight:600;margin-bottom:12px;
}
/* 文章头部 */
.article-head{border-bottom:1px solid var(--line);padding:26px 0 34px;background:var(--paper);}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:18px;
}
.breadcrumb-line a{color:var(--muted);text-decoration:none;}
.breadcrumb-line a:hover{color:var(--copper);text-decoration:underline;}
.breadcrumb-line .sep{color:var(--line);}
.breadcrumb-line .current{color:var(--ink-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.article-title{font-size:32px;line-height:1.35;font-weight:700;max-width:860px;margin:0;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  font-size:13px;color:var(--muted);margin-top:16px;
}
.meta-row .dot{color:var(--line);}
.meta-row .mono{color:var(--ink-2);}
/* 正文布局 */
.article-wrap{padding:56px 0 72px;}
.article-main{min-width:0;}
.article-body{
  max-width:760px;font-size:16px;line-height:1.9;color:var(--ink-2);
}
.article-body p{margin:0 0 14px;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.45;margin:34px 0 14px;padding-left:14px;color:var(--ink);
}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;width:3px;height:20px;background:var(--copper);}
.article-body h3{font-size:19px;line-height:1.5;margin:26px 0 10px;color:var(--ink);}
.article-body a{color:var(--copper);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;}
.article-body ul{list-style:none;padding-left:20px;}
.article-body ul>li{position:relative;margin-bottom:8px;}
.article-body ul>li::before{content:"";position:absolute;left:-14px;top:11px;width:6px;height:6px;background:var(--copper);}
.article-body ol>li{margin-bottom:8px;}
.article-body blockquote{
  margin:20px 0;padding:14px 18px;background:var(--paper-2);
  border-left:3px solid var(--copper);color:var(--ink-2);font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--paper-2);font-weight:500;color:var(--ink);}
.article-body img{border-radius:var(--radius-card);margin:16px 0;}
.article-body figure{margin:20px 0;}
.article-body figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px;}
.table-scroll{overflow-x:auto;margin:20px 0;}
.article-empty{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;background:var(--paper-2);max-width:760px;
}
.article-empty h2{font-size:20px;margin-bottom:10px;}
.article-empty p{color:var(--muted);font-size:14px;margin-bottom:18px;}
/* 侧栏 */
.article-aside{min-width:0;}
.aside-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;
}
.side-card-title{
  position:relative;padding-left:12px;font-size:16px;line-height:1.5;margin-bottom:14px;
}
.side-card-title::before{content:"";position:absolute;left:0;top:4px;width:3px;height:16px;background:var(--copper);}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{
  display:flex;align-items:flex-start;gap:8px;padding:11px 0;
  color:var(--ink-2);text-decoration:none;font-size:14px;line-height:1.7;
}
.side-list a:hover{color:var(--copper);}
.side-list .idx{font-family:var(--mono);font-size:12px;color:var(--copper);flex-shrink:0;padding-top:2px;}
.side-dl{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.side-dl h3{color:var(--paper);font-size:16px;margin-bottom:8px;}
.side-dl p{color:rgba(246,243,236,.72);font-size:13px;line-height:1.8;margin-bottom:14px;}
.side-dl .dl-list{display:flex;flex-direction:column;gap:8px;}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:42px;padding:0 14px;border:1px solid rgba(246,243,236,.32);
  border-radius:3px;color:var(--paper);text-decoration:none;font-size:14px;
  transition:background-color .22s ease,border-color .22s ease,color .22s ease;
}
.dl-btn:hover{background:var(--copper);border-color:var(--copper);color:#fff;}
.dl-btn .tag{font-family:var(--mono);font-size:11px;opacity:.75;}
.side-dl .dl-note{font-size:12px;color:rgba(246,243,236,.6);margin:12px 0 0;}
/* 要点回顾 */
.note-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;margin-top:40px;
}
.note-card h2{font-size:20px;margin-bottom:16px;}
.note-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
.note-list li{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:14px 16px;font-size:14px;line-height:1.8;color:var(--ink-2);
}
.note-list strong{color:var(--ink);font-weight:500;}
/* 风险提示 */
.risk-block{
  margin-top:28px;background:var(--copper-soft);border:1px solid #D8B79C;
  border-radius:var(--radius-card);padding:20px 22px;
}
.risk-block .risk-head{
  display:flex;align-items:center;gap:8px;font-weight:500;color:#8B3F17;
  font-size:15px;margin-bottom:8px;
}
.risk-icon{
  display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;
  border:1px solid #8B3F17;border-radius:50%;font-size:12px;line-height:1;flex-shrink:0;
}
.risk-block p{font-size:13px;line-height:1.85;color:#6B3A1C;margin:0 0 6px;}
.risk-block p:last-child{margin-bottom:0;}
/* 返回与推荐 */
.back-row{
  margin-top:32px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:24px;
}
.back-link{font-size:14px;color:var(--copper);text-decoration:none;}
.back-link:hover{color:var(--ink);text-decoration:underline;}
.reco-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;width:100%;}
.reco-card{
  display:block;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:14px 16px;text-decoration:none;
  box-shadow:var(--shadow-1);transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
  min-width:0;
}
.reco-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);color:var(--ink);}
.reco-card .reco-label{font-family:var(--mono);font-size:11px;color:var(--copper);letter-spacing:.08em;display:block;margin-bottom:6px;}
.reco-card strong{display:block;font-weight:500;font-size:14px;line-height:1.7;color:var(--ink-2);}
/* 页脚 */
.site-footer{background:var(--ink);color:var(--paper);padding:56px 0 0;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px;
}
.footer-brand .brand{color:var(--paper);margin-bottom:12px;}
.footer-brand .brand-mark{color:var(--paper);}
.footer-brand p{font-size:13px;line-height:1.9;color:rgba(246,243,236,.72);margin:0;}
.footer-col h3{font-size:14px;color:var(--paper);margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul a{color:var(--paper-2);text-decoration:none;font-size:14px;opacity:.86;}
.footer-col ul a:hover{color:var(--copper);opacity:1;}
.footer-dl{display:flex;flex-direction:column;gap:8px;}
.footer-dl a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:40px;padding:0 12px;border:1px solid rgba(246,243,236,.24);
  border-radius:3px;color:var(--paper-2);text-decoration:none;font-size:13px;
  transition:background-color .22s ease,border-color .22s ease,color .22s ease;
}
.footer-dl a:hover{background:var(--copper);border-color:var(--copper);color:#fff;}
.footer-dl .tag{font-family:var(--mono);font-size:11px;opacity:.75;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:16px 0 22px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;
  font-size:13px;color:rgba(246,243,236,.78);
}
.footer-bottom .risk-line{color:rgba(246,243,236,.6);max-width:760px;line-height:1.8;}
/* 响应式 */
@media (max-width:1199px){
  .article-title{font-size:30px;}
}
@media (max-width:991px){
  .site-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;}
  .article-wrap{padding:40px 0 56px;}
  .aside-sticky{position:static;margin-top:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .section{padding:52px 0;}
}
@media (max-width:767px){
  .container.site-container{padding-left:16px;padding-right:16px;}
  .article-title{font-size:26px;}
  .article-body{font-size:15px;line-height:1.88;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .section-title{font-size:22px;}
  .reco-grid{grid-template-columns:1fr;}
  .breadcrumb-line .current{white-space:normal;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .note-card{padding:18px;}
  .side-card{padding:16px;}
}

/* roulang page: category1 */
:root{
  --paper:#F6F3EC;
  --paper-2:#EDE7DA;
  --ink:#0E2B26;
  --ink-2:#1C3B34;
  --copper:#C0642F;
  --copper-soft:#E8D3C2;
  --line:#D9D2C3;
  --up:#2E7D63;
  --down:#A63A34;
  --muted:#6B675C;
  --radius-card:4px;
  --radius-btn:3px;
  --shadow-1:0 1px 2px rgba(14,43,38,.06);
  --shadow-2:0 6px 18px rgba(14,43,38,.10);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin-top:0;line-height:1.35;}
p{margin:0 0 14px;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--copper);text-decoration:underline;text-underline-offset:3px;transition:color .22s ease;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
.container.site-container{
  width:100%;
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:72px 0;border-top:1px solid var(--line);}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink);color:var(--paper);border-top:1px solid var(--ink);}
.section-head{margin-bottom:34px;max-width:780px;}
.section-title{
  position:relative;padding-left:16px;margin-bottom:10px;
  font-size:28px;font-weight:700;font-family:var(--serif);line-height:1.35;
}
.section-title::before{content:"";position:absolute;left:0;top:5px;width:3px;height:24px;background:var(--copper);}
.section-note{font-size:14px;color:var(--muted);line-height:1.85;margin:0;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--copper);font-family:var(--mono);font-weight:600;margin-bottom:12px;
}
/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;}
.btn:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
.btn-ink{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.btn-ink:hover{background:var(--copper);border-color:var(--copper);color:var(--paper);}
.btn-ink:active{transform:translateY(1px);}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink);text-decoration:none;}
.btn-line:hover{background:var(--paper-2);border-color:var(--copper);color:var(--ink);}
.btn-copper{background:var(--copper);color:#fff;border-color:var(--copper);}
.btn-copper:hover{background:#A8541F;border-color:#A8541F;color:#fff;}
.btn-sm{min-height:38px;padding:0 16px;font-size:13px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:2px;
  font-size:12px;line-height:1.6;background:var(--paper-2);border:1px solid var(--line);color:var(--ink-2);
}
.badge-copper{background:var(--copper-soft);border-color:#D8B79C;color:#8B3F17;}
/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 2px 10px rgba(14,43,38,.08);}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--ink);flex-shrink:0;}
.brand:hover{color:var(--ink);}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:18px;letter-spacing:.02em;white-space:nowrap;}
.brand-badge{
  font-family:var(--sans);font-size:11px;font-weight:500;line-height:1;padding:4px 6px;
  border:1px solid var(--copper);color:var(--copper);border-radius:2px;white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  color:var(--ink-2);text-decoration:none;font-size:15px;white-space:nowrap;
  transition:color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:16px;height:2px;width:100%;background:var(--copper);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--copper);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-download{
  display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 18px;
  border:1px solid var(--copper);color:var(--copper);border-radius:3px;font-size:14px;
  text-decoration:none;white-space:nowrap;transition:background-color .22s ease,color .22s ease;
}
.nav-download:hover{background:var(--copper);color:#fff;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;
  margin-left:auto;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease;}
.nav-toggle:focus-visible{outline:2px solid var(--copper);outline-offset:2px;}
/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:var(--paper);
  z-index:1060;transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;box-shadow:-8px 0 24px rgba(14,43,38,.16);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);}
.drawer-close{width:44px;height:44px;background:transparent;border:1px solid var(--line);border-radius:3px;font-size:20px;line-height:1;color:var(--ink);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;min-height:48px;padding:0 18px;color:var(--ink-2);
  text-decoration:none;border-bottom:1px solid var(--line);font-size:15px;
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--copper);}
.drawer-foot{margin-top:auto;padding:16px 18px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}
/* ---------- 分类头部 ---------- */
.cat-head{padding:34px 0 30px;}
.cat-head-grid{display:grid;grid-template-columns:minmax(0,1fr) 268px;gap:40px;align-items:center;}
.crumbs{font-size:13px;color:var(--muted);line-height:1.7;}
.crumbs a{color:var(--muted);text-decoration:none;}
.crumbs a:hover{color:var(--copper);}
.crumbs .sep{margin:0 8px;color:#BDB5A4;}
.cat-title{font-size:34px;line-height:1.25;font-weight:700;margin:12px 0 10px;}
.cat-lead{font-size:15px;color:var(--muted);max-width:660px;margin:0;line-height:1.8;}
.cat-aside{
  border:1px solid var(--line);border-left:3px solid var(--copper);
  background:var(--paper-2);border-radius:var(--radius-card);padding:16px 18px;
}
.cat-aside .aside-k{font-size:12px;color:var(--muted);letter-spacing:.08em;margin:0 0 6px;font-family:var(--mono);}
.cat-aside .aside-v{font-family:var(--mono);font-size:24px;font-weight:600;color:var(--copper);line-height:1.2;margin:0 0 8px;letter-spacing:.02em;}
.cat-aside .aside-n{font-size:12px;color:var(--muted);margin:0;line-height:1.7;}
/* ---------- 要点速览 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:var(--paper);}
.metric-card{padding:20px 20px 18px;border-right:1px solid var(--line);min-width:0;}
.metric-card:last-child{border-right:0;}
.metric-k{font-size:12px;color:var(--muted);letter-spacing:.06em;margin:0 0 8px;}
.metric-v{font-family:var(--mono);font-size:24px;font-weight:600;color:var(--ink);line-height:1.25;margin:0 0 10px;letter-spacing:.02em;}
.metric-v em{font-style:normal;color:var(--copper);}
.metric-n{font-size:12px;color:var(--muted);line-height:1.7;margin:0;padding-top:10px;border-top:1px solid var(--line);}
/* ---------- 方案卡片 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.plan-card{
  min-width:0;display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.plan-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.plan-thumb{
  position:relative;aspect-ratio:16/9;background-color:var(--paper-2);
  background-image:
    repeating-linear-gradient(90deg,rgba(14,43,38,.06) 0 1px,transparent 1px 44px),
    repeating-linear-gradient(0deg,rgba(14,43,38,.06) 0 1px,transparent 1px 44px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:flex-end;padding:14px 16px;
}
.plan-thumb .thumb-tag{
  font-family:var(--mono);font-size:12px;font-weight:600;color:var(--copper);
  background:var(--paper);border:1px solid var(--line);padding:3px 8px;border-radius:2px;letter-spacing:.06em;
}
.plan-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1 1 auto;min-width:0;}
.plan-label{display:inline-flex;align-self:flex-start;font-size:12px;padding:2px 8px;border-radius:2px;background:var(--copper-soft);color:#8B3F17;border:1px solid #D8B79C;margin-bottom:10px;}
.plan-title{font-size:19px;line-height:1.45;margin:0 0 10px;font-weight:700;min-width:0;}
.plan-desc{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 16px;}
.plan-meta{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12px;color:var(--muted);font-family:var(--mono);
}
.plan-meta span{white-space:nowrap;}
.plan-more{margin-top:26px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.plan-more .tip{font-size:12px;color:var(--muted);}
/* ---------- 对照表 ---------- */
.table-wrap{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);
  scrollbar-color:#BDB5A4 var(--paper-2);
}
.table-wrap::-webkit-scrollbar{height:10px;}
.table-wrap::-webkit-scrollbar-track{background:var(--paper-2);}
.table-wrap::-webkit-scrollbar-thumb{background:#BDB5A4;border-radius:6px;}
table.cmp{width:100%;min-width:720px;border-collapse:collapse;font-size:14px;}
table.cmp th,table.cmp td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
table.cmp thead th{
  background:var(--paper-2);font-family:var(--sans);font-size:13px;font-weight:700;color:var(--ink);
  white-space:nowrap;position:sticky;top:0;
}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp td.num{font-family:var(--mono);font-weight:600;color:var(--copper);white-space:nowrap;}
table.cmp td.name{font-weight:500;color:var(--ink);white-space:nowrap;}
.table-note{margin:14px 0 0;font-size:12px;color:var(--muted);}
/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene-card{
  min-width:0;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--paper);
  padding:22px;box-shadow:var(--shadow-1);transition:border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.scene-card:hover{border-color:var(--copper);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.scene-idx{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--copper);letter-spacing:.08em;display:block;margin-bottom:8px;}
.scene-card h3{font-size:18px;margin:0 0 10px;}
.scene-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 14px;}
/* ---------- 清单 ---------- */
.check-list{border-top:1px solid var(--line);}
.check-item{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.check-no{font-family:var(--mono);font-size:20px;font-weight:600;color:var(--copper);line-height:1.4;letter-spacing:.02em;}
.check-item h3{font-size:17px;margin:0 0 6px;line-height:1.5;}
.check-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.8;}
/* ---------- 误区 ---------- */
.myth-list{display:grid;gap:0;border-left:3px solid var(--copper);padding-left:0;}
.myth-item{padding:16px 0 16px 20px;border-bottom:1px solid var(--line);}
.myth-item:last-child{border-bottom:0;}
.myth-item h3{font-size:17px;margin:0 0 6px;line-height:1.5;}
.myth-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.8;}
.risk-box{
  margin-top:28px;background:var(--copper-soft);border:1px solid #D8B79C;border-radius:var(--radius-card);
  padding:20px 22px;display:grid;grid-template-columns:28px minmax(0,1fr);gap:14px;align-items:start;
}
.risk-ico{
  width:28px;height:28px;border-radius:2px;border:1px solid #B8724A;color:#8B3F17;
  display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:600;font-size:14px;
}
.risk-box p{font-size:13px;color:#7A3D18;line-height:1.85;margin:0 0 8px;}
.risk-box p:last-child{margin-bottom:0;}
/* ---------- 延伸阅读 + 下载 ---------- */
.reading-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.read-list{border-top:1px solid var(--line);}
.read-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px;align-items:baseline;
  padding:15px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);
  transition:color .22s ease,padding-left .22s ease;
}
.read-item:hover{color:var(--copper);padding-left:4px;}
.read-date{font-family:var(--mono);font-size:12px;color:var(--muted);white-space:nowrap;}
.read-title{font-size:15px;line-height:1.7;min-width:0;}
.empty-note{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--paper);
  padding:26px 18px;text-align:center;font-size:13px;color:var(--muted);margin:20px 0 0;
}
.dl-aside{
  background:var(--ink);color:var(--paper);border-radius:var(--radius-card);padding:22px;
  border:1px solid var(--ink);
}
.dl-aside h3{color:var(--paper);font-size:17px;margin:0 0 8px;}
.dl-aside p{font-size:12px;color:rgba(246,243,236,.72);line-height:1.8;margin:0 0 16px;}
.dl-aside .dl-btns{display:grid;gap:10px;}
.dl-aside .btn{
  width:100%;background:transparent;color:var(--paper);border:1px solid rgba(246,243,236,.42);
  text-decoration:none;font-size:14px;justify-content:space-between;padding:0 16px;
}
.dl-aside .btn:hover{background:var(--copper);border-color:var(--copper);color:#fff;}
.dl-aside .btn .mono{font-family:var(--mono);font-size:11px;letter-spacing:.08em;opacity:.8;}
.dl-aside .dl-foot{font-size:11px;color:rgba(246,243,236,.6);margin:14px 0 0;line-height:1.7;}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--paper);padding:56px 0 24px;border-top:1px solid var(--ink);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:34px;}
.footer-brand .brand{color:var(--paper);}
.footer-brand .brand:hover{color:var(--paper);}
.footer-brand .brand-mark{color:var(--paper);}
.footer-brand p{font-size:13px;color:rgba(246,243,236,.7);line-height:1.85;margin:14px 0 0;max-width:320px;}
.footer-col h3{font-size:14px;color:var(--paper);font-family:var(--sans);font-weight:700;margin:0 0 14px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:13px;color:var(--paper-2);text-decoration:none;transition:color .22s ease;}
.footer-col ul li a:hover{color:var(--copper);}
.footer-dl{display:grid;gap:10px;}
.footer-dl a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--paper-2);text-decoration:none;padding:8px 12px;
  border:1px solid rgba(246,243,236,.22);border-radius:3px;transition:border-color .22s ease,color .22s ease;
}
.footer-dl a:hover{color:var(--copper);border-color:var(--copper);}
.footer-dl .tag{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:rgba(246,243,236,.55);}
.footer-bottom{
  border-top:1px solid rgba(246,243,236,.12);padding-top:20px;
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;align-items:baseline;
  font-size:13px;color:rgba(246,243,236,.72);
}
.footer-bottom .risk-line{font-size:12px;color:rgba(246,243,236,.55);max-width:640px;line-height:1.75;}
/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cat-head-grid{grid-template-columns:minmax(0,1fr) 240px;gap:28px;}
  .reading-grid{grid-template-columns:minmax(0,1fr) 290px;gap:28px;}
}
@media (max-width:991px){
  .site-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .section{padding:52px 0;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-card{border-right:1px solid var(--line);}
  .metric-card:nth-child(2n){border-right:0;}
  .metric-card:nth-child(-n+2){border-bottom:1px solid var(--line);}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .reading-grid{grid-template-columns:minmax(0,1fr);}
  .dl-aside{max-width:520px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
  .cat-head-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
  .cat-aside{max-width:420px;}
}
@media (max-width:767px){
  .container.site-container{padding-left:16px;padding-right:16px;}
  .section{padding:44px 0;}
  .cat-title{font-size:27px;}
  .cat-lead{font-size:14px;}
  .plan-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .scene-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .section-title{font-size:23px;}
  .section-title::before{height:20px;top:4px;}
  .check-item{grid-template-columns:44px minmax(0,1fr);gap:12px;}
  .read-item{grid-template-columns:minmax(0,1fr);gap:4px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .btn{width:auto;}
  .plan-more{align-items:flex-start;flex-direction:column;}
}
@media (max-width:520px){
  .metric-grid{grid-template-columns:minmax(0,1fr);}
  .metric-card{border-right:0;border-bottom:1px solid var(--line);}
  .metric-card:last-child{border-bottom:0;}
  .cat-title{font-size:25px;}
  .plan-body{padding:18px 16px 16px;}
  .scene-card{padding:18px;}
}