/* roulang page: index */
/* ================= 设计令牌 ================= */
:root{
  --green:#1F4E3D;
  --green-dark:#143528;
  --green-light:#2E6A55;
  --terra:#B4602F;
  --terra-soft:rgba(180,96,47,.12);
  --brass:#C9A227;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE1;
  --line:#DED7CA;
  --ink:#1C1B19;
  --ink-2:#4A463F;
  --ink-3:#7A746A;
  --on-dark:#F3EEE3;
  --ok:#2E7D5B;
  --warn:#B3412F;
  --r-card:14px;
  --r-btn:10px;
  --r-table:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(28,27,25,.06);
  --sh-2:0 12px 32px -14px rgba(31,78,61,.22);
  --maxw:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:Georgia,"Times New Roman",serif;
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--green);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--green-light);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--ink);}
h1{font-size:clamp(30px,3.4vw,46px);}
h2{font-size:clamp(24px,2.4vw,34px);}
h3{font-size:clamp(19px,1.6vw,22px);}
h4{font-size:17px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.1em;padding-left:1.2em;}
li{margin-bottom:.4em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,78,61,.16);}
/* ================= 容器与板块 ================= */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:var(--surface);}
.section--soft{background:var(--surface-2);}
.section--ivory{background:var(--bg);}
.section-head{margin-bottom:40px;max-width:820px;}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--terra);font-weight:700;margin-bottom:12px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--ink-2);font-size:16px;line-height:1.85;margin:0;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.head-row .section-head{margin-bottom:0;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--green);border-bottom:2px solid transparent;transition:all .18s var(--ease);}
.text-link::after{content:"›";font-size:18px;line-height:1;transform:translateY(-1px);}
.text-link:hover{color:var(--green);border-bottom-color:var(--terra);}
/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--green-light);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);background:var(--green-dark);}
.btn-outline{background:transparent;border-color:var(--green);color:var(--green);}
.btn-outline:hover{background:rgba(31,78,61,.08);color:var(--green);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);background:rgba(31,78,61,.14);}
.btn-light{background:#fff;color:var(--green);border-color:#fff;}
.btn-light:hover{background:var(--on-dark);color:var(--green-dark);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost-light{background:transparent;color:var(--on-dark);border-color:rgba(201,162,39,.7);}
.btn-ghost-light:hover{background:rgba(201,162,39,.14);color:#fff;transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
/* ================= 徽章与标签 ================= */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.04em;}
.badge-terra{background:var(--terra-soft);color:var(--terra);}
.badge-green{background:var(--green);color:var(--on-dark);}
.badge-brass{border:1px solid var(--brass);color:#8a6f16;background:rgba(201,162,39,.1);font-size:11px;letter-spacing:.1em;}
.badge-line{border:1px solid var(--line);color:var(--ink-2);background:var(--surface);}
/* ================= 顶部导航 ================= */
.site-header{position:sticky;top:0;z-index:60;}
.brand-row{background:var(--bg);border-bottom:1px solid var(--line);}
.brand-inner{height:88px;display:flex;align-items:center;justify-content:space-between;gap:28px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{display:inline-flex;width:40px;height:40px;flex-shrink:0;}
.brand-text{font-size:17px;font-weight:700;color:var(--green-dark);letter-spacing:.02em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--green-light);}
.brand-actions{display:flex;align-items:center;gap:20px;}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-pill);background:var(--surface);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);}
.nav-search:focus-within{border-color:var(--green);box-shadow:0 0 0 3px rgba(31,78,61,.12);}
.nav-search svg{flex-shrink:0;stroke:var(--ink-3);}
.nav-search input{border:0;background:transparent;font-size:14px;width:150px;color:var(--ink);outline:none;padding:0;}
.nav-search input::placeholder{color:var(--ink-3);}
.link-quiet{font-size:15px;color:var(--ink-2);font-weight:600;padding:6px 0;border-bottom:2px solid transparent;transition:all .18s var(--ease);}
.link-quiet:hover{color:var(--green);border-bottom-color:var(--terra);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green-dark);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green-dark);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.channel-row{background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--sh-1);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:56px;}
.channel-menu{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;flex-wrap:wrap;}
.channel-menu li{margin:0;}
.channel-menu a{position:relative;display:inline-flex;align-items:center;height:56px;padding:0 14px;font-size:15px;font-weight:600;color:var(--ink-2);transition:color .18s var(--ease);}
.channel-menu a::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;background:transparent;transition:background .18s var(--ease);}
.channel-menu a:hover{color:var(--green);}
.channel-menu a:hover::after{background:rgba(46,106,85,.35);}
.channel-menu a.is-active{color:var(--green);font-weight:700;}
.channel-menu a.is-active::after{background:var(--terra);}
.badge-direct{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.08em;color:var(--terra);border:1px solid rgba(180,96,47,.35);background:var(--terra-soft);padding:5px 12px;border-radius:var(--r-pill);white-space:nowrap;}
/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:var(--green-dark);color:var(--on-dark);
  padding:24px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  transform:translateX(102%);transition:transform .32s var(--ease);visibility:hidden;
}
.nav-drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.16);margin-bottom:16px;}
.drawer-brand{display:flex;align-items:center;gap:10px;color:var(--on-dark);font-weight:700;font-size:16px;line-height:1.3;}
.drawer-close{width:44px;height:44px;border:1px solid rgba(255,255,255,.28);border-radius:10px;background:transparent;color:var(--on-dark);font-size:22px;line-height:1;cursor:pointer;}
.drawer-nav{list-style:none;margin:0;padding:0;}
.drawer-nav li{margin:0;}
.drawer-nav a{display:block;padding:16px 4px;font-size:17px;font-weight:600;color:var(--on-dark);border-bottom:1px solid rgba(255,255,255,.1);}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brass);}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
/* ================= Hero ================= */
.hero{padding:72px 0 64px;background:var(--bg);position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-120px;top:48px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(201,162,39,.22);pointer-events:none;
}
.hero-copy{max-width:640px;}
.hero h1{margin-bottom:20px;color:var(--green-dark);}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.9;margin-bottom:32px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:24px;max-width:620px;}
.metric{flex:1 1 0;min-width:130px;padding-right:24px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;padding-right:0;}
.metric-num{font-family:var(--serif);font-size:26px;font-weight:700;color:var(--green);line-height:1.2;}
.metric-label{font-size:13px;color:var(--ink-3);letter-spacing:.04em;margin-top:4px;}
.hero-figure{position:relative;padding:0 12px 12px 0;}
.hero-figure::after{
  content:"";position:absolute;right:0;bottom:0;left:24px;top:24px;
  border-right:1px solid var(--brass);border-bottom:1px solid var(--brass);pointer-events:none;
}
.hero-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-2);}
.hero-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:12px;font-family:var(--serif);}
/* ================= 频道速览卡片 ================= */
.channel-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.ch-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.ch-card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--sh-2);}
.ch-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.ch-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.ch-card-body h3{font-size:18px;margin:0;}
.ch-card-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;}
.ch-card-body .text-link{margin-top:auto;font-size:14px;}
/* ================= 权益对比表 ================= */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-table);box-shadow:var(--sh-1);overflow:hidden;}
.compare-scroll{overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:820px;font-size:15px;}
table.compare thead th{
  background:var(--surface-2);color:var(--ink-2);font-size:13px;letter-spacing:.06em;
  font-weight:700;padding:18px 16px;text-align:center;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare thead th:first-child{text-align:left;}
table.compare tbody th{
  text-align:left;font-weight:600;color:var(--ink);font-size:15px;
  padding:16px;border-bottom:1px solid var(--line);background:var(--surface);white-space:nowrap;
}
table.compare tbody td{padding:16px;text-align:center;border-bottom:1px solid var(--line);color:var(--ink-2);}
table.compare tbody tr:nth-child(even) th,
table.compare tbody tr:nth-child(even) td{background:#FBF9F5;}
table.compare tbody tr:last-child th,
table.compare tbody tr:last-child td{border-bottom:0;}
.col-featured{background:rgba(31,78,61,.055) !important;}
table.compare thead th.col-featured{background:rgba(31,78,61,.1);color:var(--green-dark);}
.yes{color:var(--green);font-weight:700;}
.no{color:var(--ink-3);}
.table-note{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;background:var(--surface-2);border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.swipe-hint{display:none;font-size:13px;color:var(--ink-3);margin-top:12px;}
/* ================= 等级亮点 ================= */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:end;}
.level-card{
  display:flex;flex-direction:column;gap:14px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.level-card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--sh-2);}
.level-card.is-arch{border-top-left-radius:110px;border-top-right-radius:110px;padding-top:52px;}
.level-card h3{font-size:20px;margin:0;}
.level-card .level-desc{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;}
.level-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;}
.level-points li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);margin:0;}
.level-points li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--terra);}
.level-card .text-link{font-size:14px;margin-top:auto;}
/* ================= 专属内容预览 ================= */
.preview-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.preview-copy h2{margin-bottom:16px;}
.preview-copy p{color:var(--ink-2);font-size:16px;}
.preview-list{display:flex;flex-direction:column;gap:20px;}
.preview-item{
  display:grid;grid-template-columns:180px 1fr;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;box-shadow:var(--sh-1);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.preview-item:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--sh-2);}
.preview-thumb{position:relative;border-radius:10px;overflow:hidden;}
.preview-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.preview-thumb .badge-green{position:absolute;left:10px;top:10px;height:24px;font-size:11px;padding:0 10px;}
.preview-item h3{font-size:18px;margin:0 0 8px;}
.preview-item .meta{font-size:13px;color:var(--ink-3);font-family:var(--serif);}
/* ================= 步骤 ================= */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);}
.step-num{font-family:var(--serif);font-size:34px;color:var(--brass);line-height:1;font-weight:700;margin-bottom:14px;}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--ink-2);margin:0;}
/* ================= 最新信息 ================= */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;height:100%;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--sh-2);}
.news-cover{position:relative;}
.news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-cover .badge-terra{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-body h3{font-size:19px;margin:0;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);font-family:var(--serif);}
.news-body .text-link{margin-top:auto;font-size:14px;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{stroke:var(--ink-3);}
.empty-state p{color:var(--ink-2);font-size:15px;margin:0;}
/* ================= FAQ ================= */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .18s var(--ease);}
.faq-item[open]{border-color:rgba(31,78,61,.3);}
.faq-item summary{display:flex;align-items:center;gap:14px;padding:18px 22px;cursor:pointer;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-num{font-family:var(--serif);font-size:14px;color:var(--terra);font-weight:700;flex-shrink:0;}
.faq-q{font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;}
.faq-icon{width:10px;height:10px;border-right:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(45deg);margin-left:auto;flex-shrink:0;transition:transform .2s var(--ease);}
.faq-item[open] .faq-icon{transform:rotate(-135deg);}
.faq-a{padding:0 22px 22px 52px;background:var(--surface-2);color:var(--ink-2);font-size:15px;line-height:1.85;}
.faq-a p{margin:0;padding-top:16px;}
/* ================= CTA ================= */
.cta-band{background:var(--green-dark);color:var(--on-dark);padding:72px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:var(--on-dark);margin-bottom:10px;}
.cta-inner p{color:rgba(243,238,227,.78);margin:0;font-size:16px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
/* ================= 页脚 ================= */
.site-footer{background:var(--green-dark);color:var(--on-dark);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:12px;margin-bottom:16px;}
.footer-brand .brand-text{color:var(--on-dark);font-size:17px;}
.footer-about{font-size:14px;line-height:1.9;color:rgba(243,238,227,.72);max-width:300px;margin:0;}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--brass);margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(243,238,227,.8);}
.footer-col a:hover{color:var(--brass);}
.footer-col p{font-size:14px;color:rgba(243,238,227,.72);margin:0 0 10px;line-height:1.8;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,238,227,.62);}
.footer-bottom a{color:rgba(243,238,227,.62);}
.footer-bottom a:hover{color:var(--brass);}
/* ================= 响应式 ================= */
@media screen and (max-width:1199px){
  .container{padding:0 20px;}
  .channel-cards{grid-template-columns:repeat(2,1fr);}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch;}
  .level-card.is-arch{border-top-left-radius:var(--r-card);border-top-right-radius:var(--r-card);padding-top:26px;}
  .preview-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:1023px){
  .nav-search{display:none;}
  .channel-row{display:none;}
  .nav-toggle{display:inline-flex;}
  .brand-inner{height:72px;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 48px;}
  .hero-figure{margin-top:36px;padding:0 10px 10px 0;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .swipe-hint{display:block;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .brand-actions .link-quiet{display:none;}
  .channel-cards{grid-template-columns:1fr;}
  .ladder{grid-template-columns:1fr;}
  .preview-item{grid-template-columns:1fr;}
  .preview-thumb img{aspect-ratio:16/9;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:16px 0;}
  .metric{flex:1 1 45%;min-width:0;padding-right:16px;}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(3){border-right:0;padding-left:0;}
  table.compare{min-width:720px;}
  .faq-a{padding-left:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section{padding:56px 0;}
}
@media screen and (max-width:519px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;}
  .brand-actions{gap:10px;}
  .btn-sm{height:38px;padding:0 14px;font-size:13px;}
  .hero-figure img{aspect-ratio:1/1;}
  .compare thead th,.compare tbody td,.compare tbody th{padding:12px;}
  .head-row{margin-bottom:28px;}
}

/* roulang page: category1 */
:root{
  --green:#1F4E3D;
  --green-dark:#143528;
  --green-light:#2E6A55;
  --terracotta:#B4602F;
  --brass:#C9A227;
  --ivory:#F7F4EE;
  --white:#FFFFFF;
  --sand:#EFEAE1;
  --line:#DED7CA;
  --ink:#1C1B19;
  --ink-2:#4A463F;
  --ink-3:#7A746A;
  --inv:#F3EEE3;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-panel:16px;
  --shadow-1:0 1px 2px rgba(28,27,25,.06);
  --shadow-2:0 12px 32px -14px rgba(31,78,61,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ivory);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--green);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--terracotta);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;letter-spacing:.01em;line-height:1.35;color:var(--ink);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

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

/* header */
.site-header{position:sticky;top:0;z-index:60;background:var(--ivory);border-bottom:1px solid var(--line);}
.brand-row{height:88px;display:flex;align-items:center;background:var(--ivory);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{display:inline-flex;width:40px;height:40px;flex:0 0 40px;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--green);}
.brand-actions{display:flex;align-items:center;gap:18px;}
.nav-search{display:flex;align-items:center;gap:8px;background:var(--white);border:1px solid var(--line);border-radius:999px;padding:0 14px;height:42px;transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.nav-search:focus-within{border-color:var(--green);box-shadow:0 0 0 3px rgba(31,78,61,.10);}
.nav-search svg{stroke:var(--ink-3);fill:none;flex:0 0 16px;}
.nav-search input{border:0;background:transparent;outline:none;font-size:14px;color:var(--ink);width:180px;height:38px;padding:0;}
.nav-search input::placeholder{color:var(--ink-3);}
.link-quiet{font-size:15px;color:var(--ink-2);font-weight:500;}
.link-quiet:hover{color:var(--green);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--white);border-radius:var(--radius-btn);position:relative;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(--green);content:"";transition:transform 180ms var(--ease);}
.nav-toggle span{top:21px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}

.channel-row{background:var(--white);border-top:1px solid var(--line);height:56px;display:flex;align-items:center;}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.channel-menu{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow:visible;}
.channel-menu li{list-style:none;}
.channel-menu a{display:inline-block;position:relative;padding:16px 14px;font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;border-bottom:3px solid transparent;transition:color 180ms var(--ease),border-color 180ms var(--ease);}
.channel-menu a:hover{color:var(--green);border-bottom-color:rgba(46,106,85,.4);}
.channel-menu a.is-active{color:var(--green);font-weight:700;border-bottom-color:var(--terracotta);}
.badge-direct{font-size:12px;letter-spacing:.08em;color:var(--green);border:1px solid rgba(201,162,39,.7);background:rgba(201,162,39,.10);padding:4px 12px;border-radius:999px;white-space:nowrap;}

/* drawer */
.nav-drawer{position:fixed;inset:0;z-index:80;background:var(--green-dark);color:var(--inv);transform:translateY(-100%);opacity:0;pointer-events:none;transition:transform 260ms var(--ease),opacity 200ms var(--ease);overflow-y:auto;}
.nav-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer-inner{padding:28px 24px 48px;max-width:520px;margin:0 auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid rgba(243,238,227,.35);background:transparent;color:var(--inv);font-size:22px;line-height:1;cursor:pointer;}
.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--inv);font-weight:700;font-size:17px;}
.drawer-menu{display:block;margin-bottom:28px;}
.drawer-menu li{border-bottom:1px solid rgba(243,238,227,.14);}
.drawer-menu a{display:block;padding:16px 4px;color:var(--inv);font-size:17px;font-weight:600;}
.drawer-menu a.is-active{color:var(--brass);}
.drawer-cta .btn{width:100%;justify-content:center;}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);}
.btn-primary{background:var(--green);color:var(--white);border-color:var(--green);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--green-light);border-color:var(--green-light);color:var(--white);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);background:var(--green-dark);}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);}
.btn-ghost:hover{background:rgba(31,78,61,.08);color:var(--green);transform:translateY(-2px);}
.btn-light{background:var(--white);color:var(--green);border-color:var(--white);}
.btn-light:hover{background:var(--inv);color:var(--green-dark);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}

/* breadcrumb */
.crumb{background:var(--ivory);border-bottom:1px solid var(--line);}
.crumb-inner{display:flex;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--ink-3);font-family:Georgia,"Times New Roman",serif;letter-spacing:.03em;flex-wrap:wrap;}
.crumb-inner a{color:var(--ink-3);}
.crumb-inner a:hover{color:var(--terracotta);}
.crumb-sep{color:var(--line);}
.crumb-current{color:var(--ink-2);font-weight:600;}

/* hero */
.page-hero{background:var(--ivory);padding:56px 0 64px;position:relative;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.12em;color:var(--terracotta);background:rgba(180,96,47,.12);border-radius:999px;padding:5px 14px;margin-bottom:18px;font-weight:600;}
.hero-title{font-size:clamp(30px,4.2vw,44px);line-height:1.28;margin-bottom:18px;color:var(--green-dark);}
.hero-lead{font-size:18px;color:var(--ink-2);max-width:640px;margin-bottom:26px;line-height:1.85;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--green);background:rgba(31,78,61,.08);border:1px solid rgba(31,78,61,.16);border-radius:999px;padding:5px 14px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-panel);border:1px solid var(--line);box-shadow:var(--shadow-1);}
.hero-figure::before{content:"";position:absolute;inset:-12px -12px auto auto;width:56%;height:64%;border-top:2px solid var(--brass);border-right:2px solid var(--brass);border-top-right-radius:18px;pointer-events:none;}

/* fact strip */
.fact-strip{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.fact-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
.fact-item{padding:26px 24px;border-right:1px solid var(--line);}
.fact-item:last-child{border-right:0;}
.fact-num{font-family:Georgia,"Times New Roman",serif;font-size:28px;font-weight:700;color:var(--green);line-height:1.2;margin-bottom:4px;}
.fact-label{font-size:14px;color:var(--ink-3);}

/* sections */
.section{padding:88px 0;}
.section-white{background:var(--white);}
.section-sand{background:var(--sand);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,32px);color:var(--green-dark);}
.section-head .lead{font-size:17px;color:var(--ink-2);margin:0;}
.rule-short{width:52px;height:3px;background:var(--terracotta);border-radius:2px;margin:16px 0 20px;}

.split-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center;margin-bottom:64px;}
.split-row:last-child{margin-bottom:0;}
.split-row.is-reverse .split-media{order:2;}
.split-media{position:relative;padding-left:22px;}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-1);}
.split-media::before{content:"";position:absolute;left:0;top:8%;bottom:8%;width:2px;background:var(--brass);}
.split-body h3{font-size:21px;color:var(--green-dark);margin-bottom:14px;}
.split-body p{color:var(--ink-2);}
.list-check{display:grid;gap:12px;margin-top:20px;}
.list-check li{position:relative;padding-left:26px;color:var(--ink-2);font-size:16px;}
.list-check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--green);font-weight:700;}

/* cards */
.grid-x.grid-margin-x > .cell{margin-bottom:0;}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);height:100%;transition:transform 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);}
.card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--shadow-2);}
.card-title{font-size:18px;color:var(--green-dark);margin-bottom:8px;}
.card-text{font-size:15px;color:var(--ink-2);margin:0;}
.card-head{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.card-index{font-family:Georgia,"Times New Roman",serif;font-size:14px;color:var(--terracotta);font-weight:700;letter-spacing:.06em;}

/* steps */
.step-list{display:grid;gap:0;max-width:860px;}
.step-item{display:grid;grid-template-columns:88px minmax(0,1fr);gap:24px;padding:26px 0;border-bottom:1px solid var(--line);}
.step-item:first-child{padding-top:0;}
.step-num{font-family:Georgia,"Times New Roman",serif;font-size:34px;line-height:1;color:rgba(31,78,61,.28);font-weight:700;}
.step-body h3{font-size:19px;margin-bottom:6px;color:var(--green-dark);}
.step-body p{font-size:16px;color:var(--ink-2);margin:0;}

/* faq */
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-title{display:flex;align-items:flex-start;gap:16px;width:100%;padding:22px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:700;color:var(--ink);cursor:pointer;transition:color 180ms var(--ease);}
.faq-title:hover{color:var(--green);}
.faq-index{font-family:Georgia,"Times New Roman",serif;color:var(--terracotta);font-weight:700;flex:0 0 30px;font-size:15px;line-height:1.9;}
.faq-arrow{margin-left:auto;flex:0 0 20px;transition:transform 200ms var(--ease);color:var(--green);}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);}
.faq-panel{display:none;background:var(--sand);border-radius:12px;padding:20px 24px;margin-bottom:22px;font-size:16px;color:var(--ink-2);line-height:1.85;}
.faq-item.is-open .faq-panel{display:block;}

/* cta */
.cta-band{background:var(--green);color:var(--inv);padding:72px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:var(--inv);font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-inner p{color:rgba(243,238,227,.82);margin:0;max-width:620px;font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-light{background:transparent;color:var(--inv);border-color:var(--brass);}
.cta-band .btn-light:hover{background:rgba(201,162,39,.16);color:var(--inv);}

/* footer */
.site-footer{background:var(--green-dark);color:var(--inv);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-text{color:var(--inv);}
.footer-about{color:rgba(243,238,227,.72);font-size:14px;line-height:1.85;margin:0;max-width:320px;}
.footer-col h4{color:var(--inv);font-size:15px;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:rgba(243,238,227,.78);font-size:14px;}
.footer-col a:hover{color:var(--brass);}
.footer-col p{color:rgba(243,238,227,.72);font-size:14px;margin:0 0 8px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,238,227,.6);}

/* responsive */
@media screen and (max-width:1023px){
  .brand-row{height:72px;}
  .nav-search{display:none;}
  .link-quiet{display:none;}
  .channel-menu a{padding:16px 10px;font-size:14px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-figure{max-width:420px;}
  .split-row{grid-template-columns:1fr;gap:28px;}
  .split-row.is-reverse .split-media{order:0;}
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .fact-item:nth-child(2){border-right:0;}
  .fact-item:nth-child(1),.fact-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .channel-row{display:none;}
  .nav-toggle{display:block;}
  .btn-sm{display:none;}
  .section{padding:56px 0;}
  .page-hero{padding:40px 0 48px;}
  .hero-title{font-size:clamp(26px,7vw,34px);}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .fact-grid{grid-template-columns:1fr;}
  .fact-item{border-right:0;border-bottom:1px solid var(--line);padding:20px 18px;}
  .fact-item:last-child{border-bottom:0;}
  .step-item{grid-template-columns:56px minmax(0,1fr);gap:16px;}
  .step-num{font-size:26px;}
  .cta-band{padding:56px 0;}
  .cta-actions,.cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .split-media{padding-left:16px;}
}
@media screen and (min-width:1200px){
  .page-hero{padding:72px 0 80px;}
}

/* roulang page: article */
:root{
  --green:#1F4E3D;
  --green-dark:#143528;
  --green-light:#2E6A55;
  --terracotta:#B4602F;
  --brass:#C9A227;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE1;
  --line:#DED7CA;
  --ink:#1C1B19;
  --ink-2:#4A463F;
  --ink-3:#7A746A;
  --inv:#F3EEE3;
  --radius-card:14px;
  --radius-lg:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(28,27,25,.06);
  --shadow-2:0 12px 32px -14px rgba(31,78,61,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-serif:Georgia,"Times New Roman","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--ink);margin:0}
p{margin:0}
a{color:var(--green);text-decoration:none;transition:color 180ms var(--ease)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--green);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.btn-primary{background:var(--green);color:#fff;border-color:var(--green)}
.btn-primary:hover{background:var(--green-light);border-color:var(--green-light);transform:translateY(-2px);box-shadow:var(--shadow-2);color:#fff}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green)}
.btn-outline:hover{background:rgba(31,78,61,.08);transform:translateY(-2px);color:var(--green-dark)}
.btn-light{background:var(--inv);color:var(--green-dark);border-color:var(--inv)}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 28px -14px rgba(0,0,0,.5)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-full{width:100%}
.link-quiet{color:var(--ink-2);font-size:14.5px;text-decoration:none;position:relative;padding-bottom:2px}
.link-quiet::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--terracotta);transition:width 180ms var(--ease)}
.link-quiet:hover{color:var(--green-dark)}
.link-quiet:hover::after{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--green);text-decoration:none}
.link-arrow:hover{color:var(--terracotta)}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(180,96,47,.12);color:var(--terracotta);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;
}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);font-size:13px;text-decoration:none;
  transition:background-color 180ms var(--ease),color 180ms var(--ease);
}
.tag:hover{background:rgba(180,96,47,.12);color:var(--terracotta)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg)}
.brand-row{height:88px;background:var(--bg);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:88px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.brand-mark{display:inline-flex;width:40px;height:40px;flex-shrink:0}
.brand-text{font-size:19px;font-weight:700;color:var(--green-dark);letter-spacing:.01em;white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:20px}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.nav-search:focus-within{border-color:rgba(31,78,61,.5);box-shadow:0 0 0 3px rgba(31,78,61,.08)}
.nav-search svg{stroke:var(--ink-3);fill:none;flex-shrink:0}
.nav-search input{
  border:0;background:transparent;outline:none;width:170px;
  font-size:14px;color:var(--ink);font-family:inherit;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0;background:transparent;
  border:1px solid var(--line);border-radius:10px;cursor:pointer;position:relative;
  transition:background-color 180ms var(--ease),border-color 180ms var(--ease);
}
.nav-toggle:hover{background:var(--surface-2);border-color:rgba(31,78,61,.3)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green-dark);margin:0 auto;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green-dark)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.channel-row{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:56px}
.channel-menu{display:flex;align-items:center;gap:32px;list-style:none;margin:0;padding:0}
.channel-menu a{
  position:relative;display:block;padding:16px 0;font-size:15px;color:var(--ink-2);
  text-decoration:none;white-space:nowrap;transition:color 180ms var(--ease);
}
.channel-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:transparent;
  transition:background-color 180ms var(--ease);
}
.channel-menu a:hover{color:var(--green)}
.channel-menu a:hover::after{background:rgba(46,106,85,.35)}
.channel-menu a.is-active{color:var(--green-dark);font-weight:700}
.channel-menu a.is-active::after{background:var(--terracotta)}
.badge-direct{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  border:1px solid var(--brass);color:#8a6f13;background:rgba(201,162,39,.08);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;white-space:nowrap;
}

/* ---------- 移动抽屉 ---------- */
.nav-drawer{
  position:fixed;inset:0;z-index:120;background:var(--green-dark);
  padding:24px;overflow-y:auto;display:none;
}
.nav-drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid rgba(255,255,255,.16)}
.drawer-head .brand-text{color:var(--inv);font-size:17px}
.drawer-close{
  width:44px;height:44px;background:transparent;border:1px solid rgba(255,255,255,.3);
  border-radius:10px;color:var(--inv);font-size:22px;line-height:1;cursor:pointer;
}
.drawer-close:hover{background:rgba(255,255,255,.1)}
.drawer-menu{list-style:none;margin:8px 0 24px;padding:0}
.drawer-menu li{border-bottom:1px solid rgba(255,255,255,.1)}
.drawer-menu a{
  display:block;padding:18px 4px;color:var(--inv);font-size:17px;font-weight:600;
  text-decoration:none;transition:color 180ms var(--ease),padding-left 180ms var(--ease);
}
.drawer-menu a:hover{color:var(--brass);padding-left:10px}
.drawer-cta{margin-top:8px}

/* ---------- 面包屑 ---------- */
.page-main{padding:34px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);font-family:var(--font-serif);margin-bottom:30px;
}
.breadcrumb a{color:var(--ink-3);text-decoration:none}
.breadcrumb a:hover{color:var(--green);text-decoration:underline;text-decoration-color:var(--terracotta);text-decoration-thickness:2px;text-underline-offset:4px}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-3);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头部 ---------- */
.article-head{margin-bottom:30px;max-width:1000px}
.article-title{
  font-size:clamp(30px,4vw,44px);line-height:1.28;margin:18px 0 20px;
  color:var(--ink);font-weight:700;letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-family:var(--font-serif);font-size:14px;color:var(--ink-3);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.article-cover{margin:0 0 48px}
.article-cover .cover-img{
  border-radius:var(--radius-lg);overflow:hidden;background:var(--surface-2);border:1px solid var(--line);
}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
.article-cover figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:12px}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:56px;align-items:start;justify-content:space-between}
.article-main{min-width:0}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);word-break:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(23px,2.6vw,30px);color:var(--ink);
  margin:52px 0 18px;padding-top:22px;
}
.article-body h2::before{content:"";position:absolute;top:0;left:0;width:24px;height:3px;background:var(--terracotta)}
.article-body h3{font-size:20px;color:var(--ink);margin:34px 0 12px;line-height:1.5}
.article-body h4{font-size:18px;color:var(--ink);margin:26px 0 10px}
.article-body a{color:var(--green);border-bottom:2px solid rgba(180,96,47,.35)}
.article-body a:hover{color:var(--green-dark);border-bottom-color:var(--terracotta)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.3em}
.article-body li{margin-bottom:9px}
.article-body li::marker{color:var(--terracotta)}
.article-body blockquote{
  margin:30px 0;padding:22px 26px;background:var(--surface-2);
  border-left:4px solid var(--terracotta);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto;max-width:100%;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;display:table;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{background:var(--surface-2);color:var(--ink);font-weight:600}
.article-body tr:nth-child(even) td{background:#FBFAF6}
.article-body pre{
  background:#F1EEE7;border:1px solid var(--line);border-radius:12px;
  padding:18px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em}
.article-body :not(pre) > code{background:#F1EEE7;padding:2px 6px;border-radius:6px;color:var(--green-dark)}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.side-sticky{position:sticky;top:164px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:24px}
.side-title{font-size:15px;font-weight:700;color:var(--green-dark);margin:0 0 16px;letter-spacing:.04em}
.toc-list{list-style:none;margin:0;padding:0;font-size:14.5px;line-height:1.7}
.toc-list li + li{margin-top:8px}
.toc-list a{
  display:block;padding:4px 0 4px 12px;color:var(--ink-2);text-decoration:none;
  border-left:2px solid var(--line);
  transition:color 180ms var(--ease),border-color 180ms var(--ease),font-weight 180ms var(--ease);
}
.toc-list a:hover{color:var(--green);border-left-color:rgba(180,96,47,.5)}
.toc-list a.is-current{color:var(--green);font-weight:700;border-left-color:var(--terracotta)}
.side-member{background:linear-gradient(0deg,rgba(31,78,61,.035),rgba(31,78,61,.035)),#fff}
.side-member p{font-size:14px;line-height:1.85;color:var(--ink-2);margin:0 0 18px}
.side-member .link-arrow{margin-top:14px;font-size:13.5px}

/* ---------- 文末 ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;margin:48px 0 30px;
  padding-top:28px;border-top:1px solid var(--line);
}
.article-back{display:flex;flex-wrap:wrap;gap:14px}
.notice-empty{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);max-width:760px;
}
.notice-empty h2{font-size:22px;margin-bottom:12px}
.notice-empty p{color:var(--ink-2);font-size:15.5px;margin-bottom:24px}

/* ---------- 板块与卡片 ---------- */
.section{padding:80px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,3vw,32px);color:var(--ink)}
.section-head p{color:var(--ink-3);font-size:14.5px;margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--shadow-2)}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{
  font-size:18px;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;line-height:1.8;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);
  font-family:var(--font-serif);
}
.card-foot .link-arrow{font-size:13.5px;font-family:var(--font)}

/* ---------- CTA ---------- */
.cta-band{background:var(--green-dark);padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-inner h2{color:var(--inv);font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.cta-inner p{color:rgba(243,238,227,.74);font-size:15px;max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-dark);color:var(--inv);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:var(--inv);font-size:18px}
.footer-about{color:rgba(243,238,227,.72);font-size:14.5px;line-height:1.85;margin:0;max-width:330px}
.footer-col h4{color:var(--inv);font-size:15px;margin:0 0 16px;letter-spacing:.04em}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li + li{margin-top:10px}
.footer-col a{
  color:rgba(243,238,227,.78);font-size:14px;text-decoration:none;
  transition:color 180ms var(--ease);
}
.footer-col a:hover{color:var(--brass)}
.footer-col p{color:rgba(243,238,227,.72);font-size:14px;margin:0 0 8px;line-height:1.8}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 24px;
  font-size:13px;color:rgba(243,238,227,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 262px;gap:36px}
  .nav-search input{width:130px}
  .channel-menu{gap:24px}
}
@media (max-width:1023px){
  .brand-row,.brand-inner{height:72px}
  .channel-row{display:none}
  .nav-toggle{display:block}
  .nav-search{display:none}
  .brand-actions .link-quiet{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .side-sticky{position:static;top:auto}
  .article-side{margin-top:44px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .cta-band{padding:56px 0}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 18px}
  .brand-text{font-size:16px}
  .brand-mark{width:34px;height:34px}
  .brand-mark svg{width:34px;height:34px}
  .brand-actions{gap:12px}
  .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .page-main{padding:24px 0 0}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .article-title{font-size:26px;margin:14px 0 16px}
  .article-cover{margin-bottom:34px}
  .article-cover img{aspect-ratio:16/10}
  .article-body h2{margin-top:40px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .article-back .btn{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-inner{gap:24px}
  .cta-inner .btn{width:100%}
  .side-card{padding:18px}
}

/* roulang page: category2 */
:root{
  --green:#1F4E3D;
  --green-dark:#143528;
  --green-light:#2E6A55;
  --terracotta:#B4602F;
  --brass:#C9A227;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-alt:#EFEAE1;
  --line:#DED7CA;
  --ink:#1C1B19;
  --ink-2:#4A463F;
  --ink-3:#7A746A;
  --inverse:#F3EEE3;
  --ok:#2E7D5B;
  --warn:#B3412F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-lg:16px;
  --shadow-1:0 1px 2px rgba(28,27,25,.06);
  --shadow-2:0 12px 32px -14px rgba(31,78,61,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-serif:Georgia,"Times New Roman","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure{margin:0}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.32;color:var(--ink)}
h1{font-size:clamp(30px,4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(19px,2vw,22px)}
h4{font-size:17px}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease)}
img{display:block;max-width:100%;height:auto}
ul,ol{list-style:none;margin:0;padding:0}
button{font:inherit;cursor:pointer}
input,textarea{font:inherit;color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--green);
  outline-offset:2px;
}
.site-footer a:focus-visible{outline-color:var(--brass)}
.serif{font-family:var(--font-serif);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.rule{height:3px;background:linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 2px,transparent 2px 3px);border:0;margin:0}
.rule--tight{height:3px;background:linear-gradient(to bottom,var(--line) 0 1px,transparent 1px 2px,var(--brass) 2px 3px);border:0}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--bg)}
.brand-row{background:var(--bg);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{display:inline-flex;width:40px;height:40px}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;color:var(--green);white-space:nowrap}
.brand-actions{display:flex;align-items:center;gap:20px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:0 14px;height:42px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  color:var(--ink-3);transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{border-color:var(--green-light);box-shadow:0 0 0 3px rgba(31,78,61,.10)}
.nav-search svg{flex-shrink:0;stroke:currentColor;fill:none}
.nav-search input[type="search"]{
  width:170px;border:0;background:transparent;padding:0;height:38px;
  font-size:15px;color:var(--ink);outline:none;
}
.nav-search input::placeholder{color:var(--ink-3)}
.link-quiet{font-size:15px;color:var(--ink-2);padding:6px 0;border-bottom:2px solid transparent}
.link-quiet:hover{color:var(--green);border-bottom-color:var(--terracotta)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;
  transition:transform var(--ease),background-color var(--ease),box-shadow var(--ease),border-color var(--ease),color var(--ease);
}
.btn-primary{background:var(--green);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--green-light);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);background:var(--green-dark)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:rgba(31,78,61,.08);transform:translateY(-2px)}
.btn-light{background:var(--inverse);color:var(--green-dark);border-color:var(--inverse)}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 28px -16px rgba(0,0,0,.5)}
.btn-outline-light{background:transparent;color:var(--inverse);border-color:rgba(243,238,227,.55)}
.btn-outline-light:hover{background:rgba(243,238,227,.12);border-color:var(--brass);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:15px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);position:relative;align-items:center;justify-content:center;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;background:var(--green);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:50%;transform:translateX(-50%)}
.nav-toggle span::before{top:15px}
.nav-toggle span::after{top:27px}
.channel-row{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:56px}
.channel-menu{display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.channel-menu a{
  display:inline-flex;align-items:center;height:56px;
  font-size:16px;color:var(--ink-2);border-bottom:3px solid transparent;
  transition:color var(--ease),border-color var(--ease);
}
.channel-menu a:hover{color:var(--green);border-bottom-color:rgba(31,78,61,.28)}
.channel-menu a.is-active{color:var(--green);font-weight:700;border-bottom-color:var(--terracotta)}
.badge-direct{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:999px;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--terracotta);background:rgba(180,96,47,.12);white-space:nowrap;
}
/* drawer */
.nav-drawer{
  position:fixed;inset:0;z-index:120;background:var(--green-dark);color:var(--inverse);
  padding:28px 24px 32px;display:flex;flex-direction:column;gap:28px;
  transform:translateY(-102%);visibility:hidden;
  transition:transform 260ms cubic-bezier(.2,.7,.3,1),visibility 260ms;
}
body.drawer-open .nav-drawer{transform:translateY(0);visibility:visible}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-head .brand-text{color:var(--inverse);font-size:17px;white-space:normal}
.drawer-close{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(243,238,227,.35);
  background:transparent;color:var(--inverse);font-size:20px;line-height:1;
}
.drawer-menu{display:flex;flex-direction:column;gap:4px;margin-top:8px}
.drawer-menu a{
  display:block;padding:16px 4px;font-size:19px;color:var(--inverse);
  border-bottom:1px solid rgba(243,238,227,.14);
}
.drawer-menu a.is-active{color:var(--brass);font-weight:700}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- page head ---------- */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--ink-3);font-family:var(--font-serif);letter-spacing:.04em}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--green);text-decoration:underline;text-decoration-color:var(--terracotta);text-underline-offset:3px}
.breadcrumb span.sep{margin:0 8px;color:var(--ink-3)}
.breadcrumb .current{color:var(--ink-3)}
.page-head{padding:36px 0 64px}
.page-head-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:18px;
  font-size:12px;letter-spacing:.14em;color:var(--terracotta);font-weight:700;
}
.eyebrow .num{font-family:var(--font-serif);font-size:13px;color:var(--green);letter-spacing:.08em}
.page-head h1{margin-bottom:20px;max-width:16em}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:34em}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.head-figure{position:relative}
.head-figure::after{
  content:"";position:absolute;inset:14px -14px -14px 14px;pointer-events:none;
  border-right:1px solid var(--brass);border-bottom:1px solid var(--brass);border-radius:var(--radius-lg);
}
.head-figure img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
}
/* metrics */
.metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.metrics-inner{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}
.metric{padding:26px 28px;display:flex;flex-direction:column;gap:4px}
.metric + .metric{border-left:1px solid var(--line)}
.metric strong{font-family:var(--font-serif);font-size:26px;color:var(--green);letter-spacing:.02em;line-height:1.2}
.metric span{font-size:13px;color:var(--ink-3);letter-spacing:.06em}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--alt{background:var(--surface-alt)}
.section--white{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:17px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* split */
.split{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;align-items:center}
.split--reverse .split-media{order:2}
.split-media{position:relative;padding-left:20px}
.split-media::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--brass)}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);border:1px solid var(--line);
}
.split-body h2{margin-bottom:18px}
.split-body p{color:var(--ink-2);margin-bottom:18px}
.dotted-list{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.dotted-list li{position:relative;padding-left:20px;color:var(--ink-2);font-size:16px;line-height:1.8}
.dotted-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--terracotta);
}
.dotted-list strong{color:var(--ink);font-weight:700}

/* steps */
.steps-wrap{max-width:860px;margin:0 auto}
.steps{margin-top:8px}
.step{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:28px;
  padding:34px 0;border-bottom:1px solid var(--line);
}
.step:first-child{padding-top:12px}
.step:last-child{border-bottom:0;padding-bottom:8px}
.step-num{font-family:var(--font-serif);font-size:44px;line-height:1;color:var(--terracotta);font-weight:700;letter-spacing:.02em}
.step-body h3{margin-bottom:10px}
.step-body p{color:var(--ink-2);margin-bottom:12px}
.step-body p:last-child{margin-bottom:0}
.step-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:6px;
  font-size:13px;color:var(--green);background:rgba(31,78,61,.07);
  border-radius:999px;padding:4px 14px;letter-spacing:.04em;
}

/* check grid */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.check-card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--shadow-2)}
.check-card h3{font-size:20px;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.check-card h3 .tag{
  font-family:var(--font-serif);font-size:12px;letter-spacing:.1em;color:var(--ink-3);
  border:1px solid var(--line);border-radius:999px;padding:2px 10px;font-weight:400;
}
.check-card p{color:var(--ink-2);font-size:16px;margin-bottom:14px}
.check-card ul{display:flex;flex-direction:column;gap:8px}
.check-card li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.75}
.check-card li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--green-light)}

/* notice */
.notice-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.notice{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--terracotta);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
}
.notice h3{font-size:19px;margin-bottom:10px}
.notice p{font-size:15.5px;color:var(--ink-2)}
.notice .flag{
  display:inline-block;margin-bottom:12px;font-size:12px;letter-spacing:.08em;
  color:var(--warn);background:rgba(179,65,47,.10);border-radius:999px;padding:3px 12px;font-weight:600;
}

/* faq */
.faq{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:flex-start;gap:16px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:18px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";margin-left:auto;flex-shrink:0;margin-top:8px;
  width:11px;height:11px;border-right:2px solid var(--green);border-bottom:2px solid var(--green);
  transform:rotate(45deg);transition:transform var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item summary:hover{color:var(--green)}
.faq-index{font-family:var(--font-serif);font-size:14px;font-weight:700;color:var(--terracotta);letter-spacing:.08em;padding-top:4px;flex-shrink:0}
.faq-body{
  background:var(--surface-alt);border-radius:var(--radius-btn);
  padding:20px 24px;margin:0 0 22px 34px;color:var(--ink-2);font-size:16px;line-height:1.85;
}
.faq-body p{margin:0}

/* cta */
.cta-band{background:var(--green);color:var(--inverse);padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-text h2{color:var(--inverse);margin-bottom:12px}
.cta-text p{color:rgba(243,238,227,.84);font-size:16px;max-width:44em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* footer */
.site-footer{background:var(--green-dark);color:var(--inverse);padding:76px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text{color:var(--inverse);font-size:17px}
.footer-about{color:rgba(243,238,227,.72);font-size:14.5px;line-height:1.85;max-width:32em}
.footer-col h4{color:var(--inverse);font-size:15px;letter-spacing:.06em;margin-bottom:16px;font-weight:700}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(243,238,227,.76);font-size:14.5px}
.footer-col a:hover{color:var(--brass)}
.footer-col p{color:rgba(243,238,227,.72);font-size:14.5px;line-height:1.9}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;
  font-size:13px;color:rgba(243,238,227,.6);letter-spacing:.02em;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .page-head-grid{gap:44px}
  .split{gap:40px}
}
@media (max-width:1023px){
  .channel-row{display:none}
  .nav-toggle{display:flex}
  .nav-search{display:none}
  .brand-inner{min-height:76px}
  .page-head-grid{grid-template-columns:1fr;gap:36px}
  .head-figure{max-width:520px}
  .head-figure img{aspect-ratio:16/10}
  .split{grid-template-columns:1fr;gap:32px}
  .split--reverse .split-media{order:0}
  .notice-list{grid-template-columns:1fr}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  body{font-size:16px}
  .brand-inner{min-height:70px;gap:14px}
  .brand-text{font-size:16px;white-space:normal;line-height:1.3}
  .brand-mark{width:34px;height:34px}
  .brand-mark svg{width:34px;height:34px}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}
  .link-quiet{display:none}
  .page-head{padding:28px 0 48px}
  .head-actions{gap:12px}
  .head-actions .btn{width:100%}
  .metrics-inner{grid-template-columns:1fr}
  .metric + .metric{border-left:0;border-top:1px solid var(--line)}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .step{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:26px 0}
  .step-num{font-size:30px}
  .check-grid{grid-template-columns:1fr;gap:16px}
  .check-card{padding:20px}
  .notice{padding:20px}
  .faq-item summary{font-size:17px;gap:12px;padding:18px 0}
  .faq-body{margin-left:0;padding:18px 18px;font-size:15.5px}
  .cta-band{padding:56px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .site-footer{padding-top:56px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:519px){
  h1{font-size:27px}
  .eyebrow{font-size:11px;letter-spacing:.1em}
  .lead{font-size:16px}
  .split-media{padding-left:14px}
  .step-note{font-size:12px}
}

/* roulang page: category3 */
:root{
  --ink-900:#1F4E3D;
  --ink-800:#143528;
  --ink-600:#2E6A55;
  --terra:#B4602F;
  --brass:#C9A227;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE1;
  --line:#DED7CA;
  --text:#1C1B19;
  --text-2:#4A463F;
  --text-3:#7A746A;
  --inverse:#F3EEE3;
  --success:#2E7D5B;
  --warn:#B3412F;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-table:16px;
  --shadow-sm:0 1px 2px rgba(28,27,25,.06);
  --shadow-lg:0 12px 32px -14px rgba(31,78,61,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;font-size:17px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink-600);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ink-900)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--ink-900);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink-800);font-weight:700;letter-spacing:.01em;line-height:1.35}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
button{font:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.serif{font-family:Georgia,"Times New Roman",serif}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg)}
.brand-row{height:88px;background:var(--bg);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100%}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink-900)}
.brand-mark{display:inline-flex;line-height:0}
.brand-text{font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.brand-actions{display:flex;align-items:center;gap:18px}
.nav-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;background:var(--surface);border:1px solid var(--line);border-radius:999px;color:var(--text-3)}
.nav-search svg{fill:none;stroke:currentColor;flex:0 0 auto}
.nav-search input{border:0;outline:0;background:transparent;font-size:14px;height:100%;width:190px;color:var(--text)}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{border-color:var(--ink-600);box-shadow:0 0 0 3px rgba(46,106,85,.12)}
.link-quiet{font-size:15px;color:var(--text-2)}
.link-quiet:hover{color:var(--ink-900);text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--terra);text-underline-offset:6px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:10px;cursor:pointer;position:relative}
.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-900);border-radius:2px;content:"";transition:transform .2s var(--ease)}
.nav-toggle span{top:calc(50% - 1px)}
.nav-toggle span::before{top:-6px;left:0;transform:none}
.nav-toggle span::after{top:6px;left:0;transform:none}

.channel-row{height:56px;background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.channel-menu{display:flex;align-items:center;gap:30px;list-style:none;height:100%}
.channel-menu a{position:relative;display:inline-block;padding:16px 0 18px;font-size:15px;font-weight:500;color:var(--text-2)}
.channel-menu a::after{content:"";position:absolute;left:0;right:0;bottom:8px;height:3px;border-radius:2px;background:transparent;transition:background .18s var(--ease)}
.channel-menu a:hover{color:var(--ink-900)}
.channel-menu a:hover::after{background:rgba(46,106,85,.35)}
.channel-menu a.is-active{color:var(--ink-900);font-weight:700}
.channel-menu a.is-active::after{background:var(--terra)}
.badge-direct{font-size:12px;letter-spacing:.08em;color:var(--terra);background:rgba(180,96,47,.08);border:1px solid rgba(180,96,47,.35);border-radius:999px;padding:4px 12px;white-space:nowrap}

/* ---------- drawer ---------- */
.nav-drawer{position:fixed;inset:0;z-index:80;background:var(--ink-800);color:var(--inverse);display:none;flex-direction:column;padding:28px 24px 36px}
.nav-drawer.is-open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid rgba(243,238,227,.18)}
.drawer-head .brand-text{color:var(--inverse)}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(243,238,227,.35);background:transparent;color:var(--inverse);cursor:pointer;font-size:20px;line-height:1}
.drawer-list{list-style:none;margin:20px 0 0;display:grid;gap:4px}
.drawer-list a{display:block;padding:14px 4px;font-size:17px;color:var(--inverse);border-bottom:1px solid rgba(243,238,227,.12)}
.drawer-list a.is-active{color:var(--brass);font-weight:700}
.drawer-cta{margin-top:auto;padding-top:28px}
.drawer-note{font-size:13px;color:rgba(243,238,227,.65);margin-top:14px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);text-align:center}
.btn-primary{background:var(--ink-900);color:#fff}
.btn-primary:hover{background:var(--ink-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);background:var(--ink-800)}
.btn-secondary{background:transparent;border-color:var(--ink-900);color:var(--ink-900)}
.btn-secondary:hover{background:rgba(46,106,85,.08);color:var(--ink-900);transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:rgba(243,238,227,.55);color:var(--inverse)}
.btn-ghost:hover{background:rgba(243,238,227,.12);color:var(--inverse);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--ink-900)}
.link-arrow::after{content:"›";font-size:18px;line-height:1;transition:transform .18s var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--terra);text-underline-offset:5px}

/* ---------- badges ---------- */
.badge{display:inline-block;font-size:12px;letter-spacing:.06em;padding:4px 12px;border-radius:999px;background:rgba(180,96,47,.12);color:var(--terra);white-space:nowrap}
.badge--level{background:var(--ink-900);color:var(--inverse)}
.badge--brass{background:rgba(201,162,39,.16);color:#7d6410;border:1px solid rgba(201,162,39,.5)}
.badge--soft{background:var(--surface-2);color:var(--text-2)}

/* ---------- hero ---------- */
.breadcrumb{padding:20px 0;font-size:13px;color:var(--text-3);font-family:Georgia,"Times New Roman",serif;letter-spacing:.02em}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--ink-900)}
.breadcrumb .sep{margin:0 8px;color:var(--line)}
.page-hero{padding:8px 0 72px}
.hero-grid{display:grid;grid-template-columns:1.35fr .8fr;gap:56px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--terra);font-family:Georgia,"Times New Roman",serif;margin-bottom:14px}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);font-weight:700;color:var(--ink-800);line-height:1.28}
.hero-lead{margin-top:20px;font-size:18px;color:var(--text-2);max-width:36em;line-height:1.85}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.hero-figure::after{content:"";position:absolute;right:-12px;bottom:-12px;width:60%;height:56%;border-right:1px solid var(--brass);border-bottom:1px solid var(--brass);border-radius:0 0 var(--radius-card) 0;pointer-events:none}
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:44px;border-top:1px solid var(--line);padding-top:24px;max-width:760px}
.stat{padding-right:20px}
.stat + .stat{border-left:1px solid var(--line);padding-left:24px}
.stat-num{font-family:Georgia,"Times New Roman",serif;font-size:26px;font-weight:700;color:var(--ink-900);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-3);letter-spacing:.04em}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section--white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--plane{background:var(--surface-2)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-head p{margin-top:14px;color:var(--text-2);font-size:17px}
.section-head .eyebrow{margin-bottom:10px}

/* ---------- benefit cards ---------- */
.cards-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.benefit-card{display:flex;flex-direction:column;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);height:100%}
.benefit-card:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--shadow-lg)}
.benefit-card h3{font-size:20px}
.benefit-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-list{list-style:none;display:grid;gap:8px;margin-top:2px}
.card-list li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2);line-height:1.75}
.card-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--terra)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}

/* ---------- compare table ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--radius-table);background:var(--surface);box-shadow:var(--shadow-sm);overflow-x:auto;overflow-y:visible}
table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:15px}
table.compare th,table.compare td{padding:15px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
table.compare thead th{background:var(--surface-2);font-weight:700;color:var(--ink-800);font-size:14px;letter-spacing:.03em;white-space:nowrap}
table.compare thead th:first-child{position:sticky;left:0;z-index:2;background:var(--surface-2)}
table.compare tbody th{font-weight:600;color:var(--ink-900);background:var(--surface);position:sticky;left:0;z-index:1;white-space:nowrap;box-shadow:1px 0 0 var(--line)}
table.compare tbody tr:nth-child(even) td{background:#FAF8F4}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:0}
.mark-yes{color:var(--ink-900);font-weight:600;white-space:nowrap}
.mark-yes::before{content:"✓";color:var(--success);margin-right:6px;font-weight:700}
.mark-no{color:var(--text-3)}
.table-note{margin-top:12px;font-size:13px;color:var(--text-3);letter-spacing:.02em}

/* ---------- tiers ---------- */
.tiers{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;align-items:start}
.tier{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 22px;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.tier:hover{transform:translateY(-4px);border-color:rgba(31,78,61,.28);box-shadow:var(--shadow-lg)}
.tier:nth-child(2){margin-top:24px;border-top-left-radius:70px;border-top-right-radius:70px;padding-top:34px}
.tier:nth-child(3){margin-top:12px}
.tier:nth-child(4){margin-top:36px}
.tier h3{font-size:19px;margin-bottom:10px}
.tier .tier-line{font-size:14px;color:var(--text-2);min-height:3.4em}
.tier .card-list li{font-size:14px}
.tier .tier-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}

/* ---------- steps ---------- */
.steps-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.steps{list-style:none;max-width:560px}
.step{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:22px 0;border-bottom:1px dashed var(--line)}
.step:first-child{padding-top:0}
.step:last-child{border-bottom:0;padding-bottom:0}
.step-num{font-family:Georgia,"Times New Roman",serif;font-size:30px;line-height:1;color:var(--brass);font-weight:700}
.step h3{font-size:18px;margin-bottom:6px}
.step p{font-size:15px;color:var(--text-2);margin:0}
.steps-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.steps-figure figcaption{margin-top:12px;font-size:13px;color:var(--text-3);text-align:center}
.steps-figure{padding-left:18px;border-left:1px solid rgba(201,162,39,.55)}

/* ---------- faq ---------- */
.faq-list{max-width:860px}
.faq{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);transition:border-color .18s var(--ease)}
.faq:hover{border-color:rgba(31,78,61,.28)}
.faq summary{display:flex;align-items:center;gap:12px;justify-content:space-between;padding:18px 22px;cursor:pointer;font-weight:700;font-size:17px;color:var(--ink-800);list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q{display:flex;align-items:center;gap:12px}
.faq-index{font-family:Georgia,"Times New Roman",serif;color:var(--terra);font-size:15px;font-weight:700}
.faq-icon{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);font-size:12px;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.faq[open] .faq-icon{transform:rotate(180deg);border-color:var(--ink-600)}
.faq-body{padding:0 22px 22px;background:var(--surface-2);color:var(--text-2);font-size:16px;line-height:1.85;border-top:1px solid var(--line);padding-top:18px}

/* ---------- cta ---------- */
.cta-band{background:var(--ink-800);color:var(--inverse);padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:var(--inverse);font-size:clamp(22px,2.4vw,30px)}
.cta-band p{color:rgba(243,238,227,.82);margin-top:12px;max-width:46em;font-size:16px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--inverse);color:var(--ink-800)}
.cta-band .btn-primary:hover{background:#fff;color:var(--ink-800)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-800);color:var(--inverse);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-text{color:var(--inverse);font-size:17px}
.footer-about{font-size:14px;color:rgba(243,238,227,.72);line-height:1.9;max-width:34em}
.footer-col h4{font-size:15px;color:var(--inverse);margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{list-style:none;display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(243,238,227,.78)}
.footer-col a:hover{color:var(--brass)}
.footer-col p{font-size:14px;color:rgba(243,238,227,.72);margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(243,238,227,.6);letter-spacing:.02em}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-search input{width:150px}
  .channel-menu{gap:22px}
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .nav-search{display:none}
  .channel-row{display:none}
  .nav-toggle{display:inline-block}
  .brand-row{height:76px}
  .section{padding:72px 0}
  .page-hero{padding:4px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{max-width:440px}
  .hero-figure img{aspect-ratio:16/10}
  .tiers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tier:nth-child(2),.tier:nth-child(3),.tier:nth-child(4){margin-top:0}
  .tier:nth-child(2){border-top-left-radius:var(--radius-card);border-top-right-radius:var(--radius-card);padding-top:24px}
  .steps-layout{grid-template-columns:1fr;gap:36px}
  .steps-figure{padding-left:0;border-left:0;max-width:520px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .brand-text{font-size:16px}
  .link-quiet{display:none}
  .cards-2{grid-template-columns:1fr;gap:16px}
  .tiers{grid-template-columns:1fr;gap:16px}
  .section{padding:56px 0}
  .hero-actions .btn{width:100%}
  .stat-strip{grid-template-columns:1fr;gap:16px;padding-top:20px}
  .stat{padding-right:0}
  .stat + .stat{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .benefit-card{padding:20px}
  .faq summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:16px 18px 20px}
  .step{grid-template-columns:48px 1fr;gap:14px}
  .step-num{font-size:24px}
}
@media (max-width:519px){
  .breadcrumb{font-size:12px}
  .page-hero h1{font-size:27px}
  .hero-lead{font-size:16px}
}

/* roulang page: category4 */
:root{
  --green:#1F4E3D;
  --green-dark:#143528;
  --green-light:#2E6A55;
  --terra:#B4602F;
  --brass:#C9A227;
  --ivory:#F7F4EE;
  --white:#FFFFFF;
  --soft:#EFEAE1;
  --line:#DED7CA;
  --ink:#1C1B19;
  --ink-2:#4A463F;
  --ink-3:#7A746A;
  --inverse:#F3EEE3;
  --ok:#2E7D5B;
  --warn:#B3412F;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(28,27,25,.06);
  --shadow-2:0 12px 32px -14px rgba(31,78,61,.22);
  --container:1200px;
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-serif:Georgia,"Times New Roman","Songti SC",serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;
  background:var(--ivory);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--green);text-decoration:none;transition:color .18s cubic-bezier(.2,.7,.3,1);}
a:hover{color:var(--terra);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--green);
  outline-offset:2px;
}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--ink);line-height:1.35;}
h1{font-size:clamp(30px,4vw,46px);}
h2{font-size:clamp(24px,2.8vw,34px);}
h3{font-size:clamp(20px,2vw,22px);}
h4{font-size:clamp(17px,1.6vw,18px);}
button{font-family:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.white{background:var(--white);}
.section.soft{background:var(--soft);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s cubic-bezier(.2,.7,.3,1),background-color .18s cubic-bezier(.2,.7,.3,1),color .18s cubic-bezier(.2,.7,.3,1),border-color .18s cubic-bezier(.2,.7,.3,1);
}
.btn-primary{background:var(--green);color:var(--inverse);box-shadow:var(--shadow-1);}
.btn-primary:hover,.btn-primary:focus{background:var(--green-light);color:var(--inverse);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green);}
.btn-outline:hover,.btn-outline:focus{background:rgba(31,78,61,.08);color:var(--green);transform:translateY(-2px);}
.btn-brass{background:transparent;color:var(--inverse);border-color:rgba(201,162,39,.75);}
.btn-brass:hover,.btn-brass:focus{background:rgba(201,162,39,.16);color:var(--inverse);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--green);border-bottom:2px solid transparent;padding-bottom:2px;}
.link-arrow:hover{color:var(--green);border-bottom-color:var(--terra);}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--ivory);box-shadow:0 1px 0 var(--line);}
.brand-row{border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px;}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--green);}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:18px;}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;background:var(--white);border:1px solid var(--line);border-radius:999px;transition:border-color .18s ease,box-shadow .18s ease;}
.nav-search:focus-within{border-color:var(--green);box-shadow:0 0 0 3px rgba(31,78,61,.1);}
.nav-search svg{flex:0 0 auto;stroke:var(--ink-3);fill:none;}
.nav-search input{border:none;background:transparent;height:100%;width:180px;font-size:14px;color:var(--ink);outline:none;}
.nav-search input::placeholder{color:var(--ink-3);}
.link-quiet{font-size:15px;font-weight:600;color:var(--ink-2);}
.link-quiet:hover{color:var(--terra);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--white);align-items:center;justify-content:center;cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.channel-row{background:var(--white);border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:56px;}
.channel-menu{display:flex;align-items:center;gap:30px;flex-wrap:wrap;}
.channel-menu a{display:inline-block;padding:16px 0;font-size:15px;font-weight:600;color:var(--ink-2);border-bottom:3px solid transparent;transition:color .18s ease,border-color .18s ease;}
.channel-menu a:hover{color:var(--green);border-bottom-color:rgba(46,106,85,.45);}
.channel-menu a.is-active{color:var(--green);font-weight:700;border-bottom-color:var(--terra);}
.badge-direct{flex:0 0 auto;font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--green);border:1px solid rgba(31,78,61,.35);border-radius:999px;padding:4px 12px;background:rgba(31,78,61,.05);}
.nav-drawer{position:fixed;inset:0;z-index:90;background:var(--green);color:var(--inverse);padding:24px;display:flex;flex-direction:column;gap:20px;opacity:0;pointer-events:none;transform:translateY(-8px);transition:opacity .22s ease,transform .22s ease;}
.nav-drawer.is-open{opacity:1;pointer-events:auto;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:18px;}
.drawer-head .brand-text{color:var(--inverse);font-size:16px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.35);background:transparent;color:var(--inverse);font-size:20px;cursor:pointer;line-height:1;}
.drawer-menu{display:flex;flex-direction:column;gap:4px;}
.drawer-menu a{display:block;padding:14px 0;color:var(--inverse);font-size:17px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.12);}
.drawer-menu a.is-active{color:var(--brass);}
.drawer-cta{margin-top:auto;}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-serif);font-size:13px;color:var(--ink-3);padding-top:26px;}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--terra);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--ink-2);}

/* ---------- 页头 ---------- */
.page-hero{padding:26px 0 72px;background:var(--ivory);}
.hero-grid{margin-top:34px;}
.hero-copy h1{margin-bottom:18px;}
.hero-copy h1 .hl{color:var(--green);}
.hero-lead{font-size:19px;color:var(--ink-2);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:.02em;background:rgba(180,96,47,.12);color:var(--terra);}
.tag.green{background:rgba(31,78,61,.09);color:var(--green);}
.tag.brass{background:rgba(201,162,39,.16);color:#7c6415;}
.hero-figure{position:relative;padding:0 0 12px 12px;}
.hero-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1);}
.hero-figure::before{content:"";position:absolute;left:0;top:16px;width:calc(100% - 12px);height:calc(100% - 30px);border:1px solid var(--brass);border-radius:16px;pointer-events:none;}
.hero-figure figcaption{font-family:var(--font-serif);font-size:13px;color:var(--ink-3);text-align:center;margin-top:12px;}

/* ---------- 快捷定位 ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.quick-card{display:block;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s cubic-bezier(.2,.7,.3,1),border-color .18s ease;}
.quick-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(31,78,61,.28);}
.quick-num{font-family:var(--font-serif);font-size:13px;letter-spacing:.08em;color:var(--terra);display:block;margin-bottom:8px;}
.quick-card h3{font-size:18px;margin-bottom:8px;}
.quick-card p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.7;}

/* ---------- 手风琴 ---------- */
.faq-group{margin-bottom:48px;}
.faq-group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:22px;}
.faq-group-head h2{font-size:clamp(22px,2.4vw,28px);}
.faq-group-head .line{flex:1 1 auto;height:1px;background:linear-gradient(to right,var(--line),transparent);}
.accordion{background:transparent;border:none;margin:0;}
.accordion-item{border:none;margin-bottom:12px;background:var(--white);border:1px solid var(--line)!important;border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;}
.accordion-item:hover{border-color:rgba(31,78,61,.28)!important;}
.accordion-item.is-active{box-shadow:var(--shadow-2);border-color:rgba(31,78,61,.28)!important;}
.accordion-title{
  display:block;position:relative;border:none!important;background:transparent!important;
  padding:20px 58px 20px 62px;font-size:17px;font-weight:700;color:var(--ink);
  line-height:1.6;border-radius:0;
}
.accordion-title:hover,.accordion-title:focus{background:rgba(31,78,61,.04)!important;color:var(--green);}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;font-family:var(--font-serif);font-size:22px;line-height:1;
  color:var(--green);background:none;margin:0;
}
.accordion-item.is-active > .accordion-title::before{content:"–";color:var(--terra);}
.accordion-title .qa-num{
  position:absolute;left:22px;top:50%;transform:translateY(-50%);
  font-family:var(--font-serif);font-size:14px;font-weight:700;color:var(--terra);letter-spacing:.04em;
}
.accordion-content{background:var(--soft)!important;border-top:1px solid var(--line)!important;padding:20px 26px 22px!important;color:var(--ink-2);font-size:16px;line-height:1.85;}
.accordion-content p:last-child{margin-bottom:0;}
.accordion-content ol{counter-reset:step;margin:12px 0 0;}
.accordion-content ol li{position:relative;padding-left:26px;margin-bottom:8px;line-height:1.8;}
.accordion-content ol li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:50%;background:rgba(31,78,61,.1);color:var(--green);font-family:var(--font-serif);font-size:12px;line-height:18px;text-align:center;}

/* ---------- 自查流程 ---------- */
.check-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.check-list{counter-reset:ck;margin-top:24px;}
.check-list li{position:relative;padding:0 0 22px 44px;border-left:2px solid rgba(31,78,61,.18);margin-left:12px;}
.check-list li:last-child{border-left-color:transparent;padding-bottom:0;}
.check-list li::before{
  counter-increment:ck;content:counter(ck);
  position:absolute;left:-13px;top:0;width:24px;height:24px;border-radius:50%;
  background:var(--green);color:var(--inverse);font-family:var(--font-serif);font-size:12px;line-height:24px;text-align:center;
}
.check-list h4{margin-bottom:4px;}
.check-list p{font-size:15px;color:var(--ink-3);margin:0;line-height:1.8;}
.check-figure{position:relative;}
.check-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px;box-shadow:var(--shadow-1);}
.check-note{margin-top:16px;padding:16px 18px;background:var(--white);border:1px solid var(--line);border-left:3px solid var(--brass);border-radius:10px;font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- 表单 ---------- */
.form-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.form-card{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:var(--shadow-1);}
.field{margin-bottom:20px;}
.field label{display:block;font-size:14px;font-weight:700;color:var(--ink-2);margin-bottom:8px;}
.field label .req{color:var(--warn);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--ink);font-family:inherit;
  background:var(--ivory);border:1px solid var(--line);border-radius:10px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.8;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(31,78,61,.35);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:var(--white);border-color:var(--green);box-shadow:0 0 0 3px rgba(31,78,61,.12);
}
.field .hint{display:block;font-size:13px;color:var(--ink-3);margin-top:6px;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:8px;}
.form-note{font-size:13px;color:var(--ink-3);margin:0;}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.contact-list li:last-child{border-bottom:none;}
.contact-list .k{flex:0 0 96px;font-size:14px;color:var(--ink-3);}
.contact-list .v{font-size:15px;color:var(--ink);font-weight:600;word-break:break-all;}

/* ---------- CTA ---------- */
.cta-band{background:var(--green-dark);color:var(--inverse);padding:72px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{color:var(--inverse);margin-bottom:10px;}
.cta-inner p{color:rgba(243,238,227,.82);margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-dark);color:var(--inverse);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:16px;font-weight:700;color:var(--inverse);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(243,238,227,.72);margin:0;max-width:340px;}
.footer-col h4{color:var(--inverse);font-size:15px;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(243,238,227,.78);font-size:14px;}
.footer-col a:hover{color:var(--brass);}
.footer-col p{color:rgba(243,238,227,.78);font-size:14px;margin:0 0 10px;line-height:1.7;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:rgba(243,238,227,.62);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-search,.link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-row{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding-bottom:56px;}
  .hero-grid{margin-top:26px;}
  .hero-figure{margin-top:32px;padding:0 0 10px 10px;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-figure::before{top:12px;height:calc(100% - 24px);}
  .check-grid{grid-template-columns:1fr;gap:32px;}
  .form-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .brand-text{font-size:15px;}
  .brand-inner{min-height:72px;gap:12px;}
  .brand-mark svg{width:34px;height:34px;}
  .section{padding:56px 0;}
  .quick-grid{grid-template-columns:1fr;gap:16px;}
  .hero-actions .btn{width:100%;}
  .hero-lead{font-size:17px;}
  .accordion-title{padding:18px 48px 18px 52px;font-size:16px;}
  .accordion-title .qa-num{left:16px;font-size:13px;}
  .accordion-title::before{right:18px;}
  .accordion-content{padding:16px 18px 18px!important;font-size:15px;}
  .form-card{padding:22px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .contact-list li{flex-direction:column;gap:4px;}
  .contact-list .k{flex:none;}
}