/* roulang page: index */
:root{
  --brand:#E2542A;
  --brand-dark:#C8461F;
  --ink:#12211F;
  --jade:#1F7A6B;
  --score:#F5C13C;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --surface:#EFEAE2;
  --text:#17201E;
  --text-2:#5A6664;
  --text-3:#8B9491;
  --line:#E2DCD2;
  --line-soft:#EDE8E0;
  --ok:#2E7D5B;
  --warn:#B8860B;
  --err:#B23A28;
  --focus:rgba(226,84,42,.28);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-chip:999px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,33,31,.04), 0 8px 24px -12px rgba(18,33,31,.10);
  --sh-2:0 12px 32px -10px rgba(18,33,31,.18);
  --sh-float:0 20px 48px -16px rgba(18,33,31,.28);
  --sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SF Mono","JetBrains Mono",Consolas,monospace;
  --bs-body-bg:#F6F3EE;
  --bs-body-color:#17201E;
  --bs-primary-rgb:226,84,42;
  --bs-border-radius:12px;
  --bs-border-color:#E2DCD2;
  --bs-link-color:#E2542A;
  --bs-link-hover-color:#C8461F;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container-x{padding:0 28px;}}
@media(min-width:992px){.container-x{padding:0 32px;}}
@media(min-width:1400px){.container-x{max-width:1280px;}}

.section{padding:56px 0;}
@media(min-width:992px){.section{padding:92px 0;}}
.section-tight{padding:44px 0;}
@media(min-width:992px){.section-tight{padding:64px 0;}}

.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);
  text-transform:uppercase;margin-bottom:12px;
}
.eyebrow.on-dark{color:var(--score);}
.h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.18;letter-spacing:-.02em;
}
.h2{
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.02em;
  color:var(--text);
}
.h3{font-size:20px;font-weight:700;line-height:1.4;}
.h4{font-size:17px;font-weight:700;line-height:1.5;}
.lead{font-size:17px;color:var(--text-2);line-height:1.8;}
.muted{color:var(--text-2);}
.muted-3{color:var(--text-3);font-size:14px;}

.sec-head{
  display:flex;flex-wrap:wrap;gap:18px;align-items:flex-end;justify-content:space-between;
  margin-bottom:32px;
}
@media(min-width:992px){.sec-head{margin-bottom:40px;}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--ink);color:rgba(246,243,238,.82);height:36px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px;}
.topbar-note{font-size:13px;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;align-items:center;gap:18px;}
.topbar-links a{font-size:13px;color:rgba(246,243,238,.82);white-space:nowrap;}
.topbar-links a:hover{color:var(--score);}
@media(max-width:767px){.topbar-note{display:none;}.topbar-inner{justify-content:center;}.topbar-links{gap:14px;}}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:1030;background:#fff;
  transition:box-shadow .2s ease,border-color .2s ease;
  border-bottom:1px solid transparent;
}
.mainnav.scrolled{border-bottom:1px solid var(--line);box-shadow:0 8px 24px -14px rgba(18,33,31,.28);}
.mainnav-inner{display:flex;align-items:center;gap:24px;height:72px;}
@media(max-width:991px){.mainnav-inner{height:60px;}}

.brand{display:flex;flex-direction:column;justify-content:center;line-height:1.1;flex-shrink:0;}
.brand-main{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.brand-sub{font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--text-3);margin-top:4px;}
.brand:hover .brand-main{color:var(--brand);}

.navpills{display:flex;align-items:center;background:var(--surface);border-radius:var(--r-chip);padding:4px;height:44px;gap:2px;}
.navpills .chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-chip);
  font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;
  border:1px solid transparent;transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.navpills .chip:hover{background:rgba(255,255,255,.75);color:var(--ink);}
.navpills .chip.active{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:0 2px 8px -4px rgba(18,33,31,.24);}
.nav-cta{margin-left:24px;flex-shrink:0;}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border:0;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  box-shadow:0 6px 18px -10px rgba(226,84,42,.9);
}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(226,84,42,.95);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-main.btn-sm{height:42px;padding:0 20px;font-size:14px;}

.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;border:1.5px solid var(--ink);color:var(--ink);
  font-weight:700;font-size:15px;transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-line:hover{background:var(--ink);color:#F6F3EE;transform:translateY(-1px);}
.btn-line.btn-sm{height:42px;padding:0 20px;font-size:14px;}

.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;
  text-decoration:underline;text-decoration-color:var(--score);text-decoration-thickness:2px;
  text-underline-offset:4px;
}
.btn-ghost:hover{color:var(--brand-dark);text-decoration-color:var(--brand);}

.link-line{
  display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--brand);
  border-bottom:2px solid var(--score);padding-bottom:2px;
}
.link-line:hover{color:var(--brand-dark);border-color:var(--brand);}

.burger{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:18px;
}
@media(max-width:991px){
  .navpills,.nav-cta{display:none;}
  .burger{display:inline-flex;}
  .mainnav-inner{justify-content:space-between;}
}

.drawer{
  position:fixed;inset:0;background:#fff;z-index:1060;
  transform:translateX(100%);transition:transform .26s ease;
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:18px;}
.drawer-group{margin-bottom:22px;}
.drawer-group h3{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--text-3);margin-bottom:10px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;border:1px solid var(--line-soft);border-radius:12px;
  font-weight:600;color:var(--ink);margin-bottom:10px;background:#fff;
}
.drawer-link.active{border-color:var(--brand);color:var(--brand);background:#FFF6F2;}
.drawer-cta{margin-top:auto;padding-top:16px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--ink);color:#F6F3EE;overflow:hidden;
  padding:56px 0 64px;
}
@media(min-width:992px){.hero{padding:72px 0 88px;min-height:600px;display:flex;align-items:center;}}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 11px);
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,122,107,.35),transparent 68%);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:44px;align-items:center;width:100%;}
@media(min-width:992px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;}}
.hero .eyebrow{color:var(--score);}
.hero h1{color:#fff;}
.hero-sub{font-size:17px;color:rgba(246,243,238,.8);margin-top:18px;max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero .btn-line{border-color:rgba(246,243,238,.6);color:#F6F3EE;}
.hero .btn-line:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE;}
.hero-micro{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:28px;font-size:13px;
  color:rgba(246,243,238,.66);letter-spacing:.02em;
}
.hero-micro span{display:inline-flex;align-items:center;gap:7px;}
.hero-micro i{color:var(--score);font-size:12px;}

.hero-media{position:relative;}
.hero-media .media-frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% 100%,0 100%,0 0);
}
.hero-media .media-frame::after{
  content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(18,33,31,.42),rgba(18,33,31,.78));
}
.hero-media img{width:100%;height:300px;object-fit:cover;opacity:.72;filter:saturate(.9);}
@media(min-width:992px){.hero-media img{height:420px;}}
.float-card{
  background:#fff;color:var(--text);border-radius:var(--r-card);padding:20px;
  box-shadow:var(--sh-float);margin-top:-56px;margin-left:16px;margin-right:16px;position:relative;z-index:3;
}
@media(min-width:992px){.float-card{position:absolute;left:-42px;bottom:-34px;width:290px;margin:0;}}
.float-card .fc-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin-bottom:12px;}
.fc-list li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line-soft);font-size:14px;}
.fc-list li:last-of-type{border-bottom:0;}
.fc-list b{font-weight:700;color:var(--jade);font-size:13px;}
.float-card .btn-main{width:100%;margin-top:14px;}

/* ---------- 品牌主张带 ---------- */
.strip{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.strip-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  padding:28px 0;
}
@media(min-width:992px){.strip-inner{padding:34px 0;}}
.strip-title{font-size:19px;font-weight:800;color:var(--ink);max-width:420px;}
.strip-title span{color:var(--brand);}
.strip-items{display:flex;flex-wrap:wrap;gap:16px 34px;}
.strip-item{display:flex;align-items:center;gap:12px;}
.strip-item .si-icon{
  width:40px;height:40px;border-radius:10px;background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--jade);font-size:16px;flex-shrink:0;
}
.strip-item .si-text{font-size:14px;font-weight:600;color:var(--text);}
.strip-item .si-text small{display:block;font-size:12px;font-weight:500;color:var(--text-3);letter-spacing:.02em;}
.strip-item:nth-child(2){transform:translateY(8px);}
@media(max-width:767px){.strip-item:nth-child(2){transform:none;}}

/* ---------- 故事区 ---------- */
.story-row{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media(min-width:992px){.story-row{grid-template-columns:6fr 6fr;gap:56px;}}
.story-row + .story-row{margin-top:56px;}
@media(min-width:992px){.story-row + .story-row{margin-top:88px;}}
.story-row.reverse .story-media{order:2;}
@media(max-width:991px){.story-row.reverse .story-media{order:0;}}
.story-media{position:relative;}
.story-media img{border-radius:var(--r-img);width:100%;height:260px;object-fit:cover;box-shadow:var(--sh-1);}
@media(min-width:992px){.story-media img{height:340px;}}
.story-media .sm-tag{
  position:absolute;left:16px;bottom:16px;background:#fff;border-radius:var(--r-badge);
  padding:8px 12px;font-size:12px;font-weight:700;color:var(--ink);box-shadow:var(--sh-1);
}
.story-text p{margin-top:16px;color:var(--text-2);line-height:1.85;}
.point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);}
.point-list li i{color:var(--brand);font-size:14px;margin-top:5px;}
.story-text .btn-ghost{margin-top:22px;}

/* ---------- 精选卡片 ---------- */
.feat-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:992px){.feat-grid{grid-template-columns:12fr;}}
.feat-top{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:992px){
  .feat-top{grid-template-columns:7fr 5fr;gap:24px;}
  .feat-side{display:grid;gap:24px;}
}
.card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;height:220px;object-fit:cover;transition:transform .3s ease;}
@media(min-width:992px){.card-media img{height:280px;}}
.card-lg .card-media img{height:240px;}
@media(min-width:992px){.card-lg .card-media img{height:100%;min-height:340px;}}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-lg{display:grid;grid-template-columns:1fr;}
@media(min-width:992px){.card-lg{grid-template-columns:1fr;}}
.card-sm .card-media img{height:150px;}
.card-sm .card-body{padding:16px 18px;}
.badge-soft{
  display:inline-flex;align-items:center;align-self:flex-start;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(31,122,107,.12);color:#186356;font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-soft.warm{background:rgba(245,193,60,.22);color:#8A6410;}
.badge-soft.brand{background:rgba(226,84,42,.12);color:#B23A28;}
.card-title{font-size:18px;font-weight:700;line-height:1.45;color:var(--ink);}
.card-title a{color:var(--ink);}
.card-title a:hover{color:var(--brand);}
.card-desc{font-size:14px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;gap:14px;margin-top:auto;font-size:13px;color:var(--text-3);}

.feat-list{display:grid;gap:12px;margin-top:24px;}

/* ---------- 横向条目 ---------- */
.news-lead{
  display:grid;grid-template-columns:1fr;gap:0;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
}
@media(min-width:992px){.news-lead{grid-template-columns:5fr 7fr;}}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-lead .nl-media img{width:100%;height:220px;object-fit:cover;}
@media(min-width:992px){.news-lead .nl-media img{height:100%;min-height:260px;}}
.news-lead .nl-body{padding:24px;display:flex;flex-direction:column;gap:14px;}
.news-lead .nl-body h3{font-size:21px;font-weight:700;color:var(--ink);line-height:1.45;}
.news-lead .nl-body p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

.news-item{
  display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:16px 18px;position:relative;overflow:hidden;
  transition:background .18s ease,box-shadow .18s ease,transform .18s ease;
}
.news-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--brand);
  transform:translateX(-2px);transition:transform .18s ease;
}
.news-item:hover{background:#FBF9F5;box-shadow:var(--sh-1);transform:translateY(-2px);}
.news-item:hover::before{transform:translateX(0);}
.news-item .ni-left{display:flex;gap:16px;align-items:center;min-width:0;}
.news-item .ni-thumb{width:120px;height:78px;border-radius:10px;overflow:hidden;flex-shrink:0;}
.news-item .ni-thumb img{width:100%;height:100%;object-fit:cover;}
.news-item .ni-body{min-width:0;}
.news-item .ni-body h3{
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.news-item .ni-body p{
  font-size:13.5px;color:var(--text-2);margin-top:6px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item .ni-meta{display:flex;align-items:center;gap:12px;margin-top:8px;font-size:12.5px;color:var(--text-3);}
.news-item .ni-arrow{font-size:18px;color:var(--text-3);transition:transform .18s ease,color .18s ease;}
.news-item:hover .ni-arrow{transform:translateX(4px);color:var(--brand);}
@media(max-width:575px){
  .news-item .ni-left{flex-direction:column;align-items:flex-start;}
  .news-item .ni-thumb{width:100%;height:150px;}
  .news-item .ni-body h3{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}
}

.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:#fff;
}
.empty-state .ei{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:var(--surface);
  display:flex;align-items:center;justify-content:center;color:var(--jade);font-size:22px;
}
.empty-state .et{font-size:17px;font-weight:700;color:var(--ink);}
.empty-state .ed{font-size:14px;color:var(--text-2);margin-top:8px;}
.empty-state .btn-line{margin-top:20px;}

/* ---------- 信任背书 ---------- */
.trust{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:992px){.trust{grid-template-columns:4fr 8fr;gap:48px;}}
.trust-stack{display:grid;gap:16px;}
.trust-stat{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.trust-stat .ts-num{font-size:30px;font-weight:800;color:var(--brand);line-height:1.1;}
.trust-stat .ts-label{font-size:14px;font-weight:700;color:var(--ink);margin-top:8px;}
.trust-stat .ts-desc{font-size:13px;color:var(--text-3);margin-top:4px;}
.trust-right{display:grid;gap:16px;align-content:start;}
.quote{
  background:#fff;border:1px solid var(--line-soft);border-left:4px solid var(--jade);
  border-radius:12px;padding:20px 22px;box-shadow:var(--sh-1);
}
.quote p{font-size:14.5px;color:var(--text-2);line-height:1.85;}
.quote .q-name{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--text-3);}
.quote .q-avatar{
  width:32px;height:32px;border-radius:50%;background:var(--surface);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--jade);
}
.partner-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;
  padding:16px 20px;background:var(--surface);border-radius:12px;border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.partner-line b{font-weight:700;color:var(--ink);letter-spacing:.04em;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:10px;max-width:900px;}
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;transition:box-shadow .2s ease;}
.faq-item.open{box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--ink);transition:color .18s ease;
}
.faq-item.open .faq-q{color:var(--brand);}
.faq-q .fi{
  width:26px;height:26px;border-radius:50%;background:var(--surface);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.faq-item.open .fi{transform:rotate(135deg);background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a-inner{padding:0 20px 20px 20px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#F6F3EE;overflow:hidden;
  padding:52px 0;
}
@media(min-width:992px){.cta-band{padding:72px 0;}}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(105deg,rgba(255,255,255,.045) 0 2px,transparent 2px 12px);
}
.cta-band .cta-shape{
  position:absolute;right:-60px;bottom:-80px;width:320px;height:320px;
  background:linear-gradient(140deg,rgba(226,84,42,.5),rgba(31,122,107,.28));
  clip-path:polygon(28% 0,100% 0,100% 100%,0 100%);pointer-events:none;
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media(min-width:992px){.cta-grid{grid-template-columns:6fr 6fr;gap:64px;}}
.cta-band h2{color:#fff;}
.cta-band p{color:rgba(246,243,238,.78);margin-top:14px;font-size:15.5px;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input{
  flex:1 1 240px;height:50px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.35);
  background:rgba(255,255,255,.1);color:#fff;padding:0 16px;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.cta-form input::placeholder{color:rgba(246,243,238,.6);}
.cta-form input:focus{outline:none;border-color:var(--score);box-shadow:0 0 0 3px rgba(245,193,60,.22);background:rgba(255,255,255,.16);}
.cta-privacy{font-size:12.5px;color:rgba(246,243,238,.55);margin-top:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(246,243,238,.78);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}}
@media(min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand .fb-logo{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.footer-brand .fb-sub{font-size:11px;font-weight:600;letter-spacing:.08em;color:rgba(246,243,238,.5);margin-top:6px;}
.footer-brand p{font-size:14px;margin-top:16px;line-height:1.85;color:rgba(246,243,238,.7);max-width:320px;}
.footer-col h3{font-size:13px;font-weight:700;letter-spacing:.1em;color:rgba(246,243,238,.5);margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(246,243,238,.8);}
.footer-col a:hover{color:var(--score);}
.footer-contact li{font-size:14px;color:rgba(246,243,238,.8);display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--jade);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(246,243,238,.14);margin-top:44px;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(246,243,238,.55);
}
.footer-bottom a{color:rgba(246,243,238,.62);}
.footer-bottom a:hover{color:var(--score);}

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

/* roulang page: category1 */
:root{
  --brand:#E2542A;
  --brand-dark:#c8461f;
  --ink:#12211F;
  --teal:#1F7A6B;
  --accent:#F5C13C;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --surface:#EFEAE2;
  --surface-soft:#FBF9F5;
  --text:#17201E;
  --muted:#5A6664;
  --faint:#8B9491;
  --line:#E2DCD2;
  --line-soft:#EDE8E0;
  --ok:#2E7D5B;
  --warn:#B8860B;
  --err:#B23A28;
  --focus:rgba(226,84,42,.28);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-chip:999px;
  --r-badge:6px;
  --sh-card:0 1px 2px rgba(18,33,31,.04),0 8px 24px -12px rgba(18,33,31,.10);
  --sh-hover:0 12px 32px -10px rgba(18,33,31,.18);
  --sh-float:0 20px 48px -16px rgba(18,33,31,.28);
  --t:180ms ease;
  --bs-body-bg:#F6F3EE;
  --bs-body-color:#17201E;
  --bs-primary-rgb:226,84,42;
  --bs-border-radius:10px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){.container-x{max-width:1280px}}
@media (max-width:991px){.container-x{padding:0 28px}}
@media (max-width:575px){.container-x{padding:0 20px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:1030}
.topbar{background:var(--ink);color:#EFEAE2}
.topbar-inner{
  height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;line-height:1;
}
.topbar-note{color:#C9CFCC;letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:20px}
.topbar-links a{color:#E8E3DA;font-size:13px;position:relative}
.topbar-links a:hover{color:var(--accent)}
.mainnav{background:#fff;transition:box-shadow var(--t),border-color var(--t);border-bottom:1px solid transparent}
.mainnav-inner{
  height:70px;display:flex;align-items:center;gap:28px;
}
.site-header.is-scrolled .mainnav{border-bottom:1px solid var(--line-soft);box-shadow:0 8px 20px -14px rgba(18,33,31,.35)}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto}
.brand-main{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.brand-sub{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--faint);margin-top:3px}
.chipnav{
  display:flex;align-items:center;gap:4px;background:var(--surface);
  padding:4px;border-radius:var(--r-chip);height:44px;
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 16px;border-radius:var(--r-chip);
  font-size:14px;font-weight:600;color:var(--ink);
  white-space:nowrap;transition:background var(--t),color var(--t),box-shadow var(--t);
  border:1px solid transparent;
}
.chip:hover{background:#E4DDD2;color:var(--ink)}
.chip.is-active{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:0 2px 8px -4px rgba(18,33,31,.28)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;padding-left:24px}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1.5px solid transparent;cursor:pointer;
  transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-primary-x{background:var(--brand);color:#fff}
.btn-primary-x:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(226,84,42,.7)}
.btn-primary-x:active{transform:translateY(0);box-shadow:none}
.btn-ghost-x{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost-x:hover{background:var(--ink);color:#F6F3EE;transform:translateY(-1px)}
.btn-line-x{background:transparent;color:var(--brand);border-bottom:2px solid var(--accent);border-radius:0;height:auto;padding:2px 0;text-underline-offset:4px}
.btn-line-x:hover{color:var(--brand-dark);border-bottom-color:var(--brand)}
.btn-x:disabled,.btn-x.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.nav-cta{height:46px;padding:0 22px;font-size:14px}
.hamburger{
  display:none;width:46px;height:46px;border-radius:var(--r-btn);
  align-items:center;justify-content:center;background:#fff;border:1.5px solid var(--line);
  color:var(--ink);font-size:18px;cursor:pointer;transition:background var(--t),border-color var(--t);
}
.hamburger:hover{background:var(--surface)}

/* Drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,33,31,.5);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:1040;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:320px;max-width:86vw;background:#fff;z-index:1050;
  transform:translateX(102%);transition:transform 220ms ease;padding:22px 22px 32px;overflow-y:auto;
  box-shadow:-16px 0 40px -20px rgba(18,33,31,.4);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
.drawer-close{background:var(--surface);border:0;width:38px;height:38px;border-radius:var(--r-btn);color:var(--ink);cursor:pointer}
.drawer-group-label{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--faint);margin:18px 0 8px}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 14px;border-radius:var(--r-btn);color:var(--ink);font-size:15px;font-weight:600;
  border:1px solid var(--line-soft);margin-bottom:8px;background:#fff;
}
.drawer-list a:hover{background:var(--surface-soft);border-color:var(--line)}
.drawer-list a.is-active{color:var(--brand);border-color:var(--line);background:var(--surface-soft)}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;background:var(--ink);color:#F2EFE9;overflow:hidden;
  padding:60px 0 66px;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.26;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 2px,transparent 2px 12px);
  pointer-events:none;
}
.cat-hero .container-x{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:#A9B4B0;margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:#CFD6D3}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#5F6D69}
.crumb .current{color:var(--accent);font-weight:700}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:16px;
}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.18;color:#fff;
  max-width:900px;letter-spacing:-.02em;
}
.hero-lead{margin-top:18px;font-size:17px;color:#D7DCD9;max-width:760px}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.anchor-chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:var(--r-chip);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);color:#F2EFE9;
  font-size:14px;font-weight:600;transition:background var(--t),color var(--t),border-color var(--t);
}
.anchor-chip:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section.alt{background:#fff}
.section-head{margin-bottom:36px;max-width:760px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);margin-bottom:12px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* 导语 + 两栏要点 */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.intro-lead p+p{margin-top:16px}
.intro-lead p{color:var(--muted)}
.point-stack{display:grid;gap:14px}
.point-item{
  display:flex;gap:14px;padding:20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);transition:box-shadow var(--t),transform var(--t);
}
.point-item:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.point-item i{
  flex:0 0 auto;width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,122,107,.12);color:var(--teal);font-size:16px;
}
.point-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.point-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* 流程条 */
.flow-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;
}
.flow-step{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 20px;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t)}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.flow-num{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:26px;font-weight:700;color:var(--brand);letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1;margin-bottom:14px;
}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.78}

/* 图文卡片混排：1 大 2 小 */
.mix-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.mix-right{display:grid;gap:24px;align-content:start}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t);height:100%;
  display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.media-thumb{position:relative;overflow:hidden;background:var(--surface)}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.media-card:hover .media-thumb img{transform:scale(1.03)}
.media-card.big .media-thumb{aspect-ratio:21/9}
.media-card.small .media-thumb{aspect-ratio:16/9}
.media-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-x{
  align-self:flex-start;display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:700;
  background:rgba(31,122,107,.12);color:#166055;
}
.badge-x.warm{background:rgba(245,193,60,.24);color:#7a5a06}
.media-body h3{font-size:20px;font-weight:700;line-height:1.4}
.media-card.small .media-body h3{font-size:18px}
.media-body p{color:var(--muted);font-size:15px}
.media-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--faint)}
.media-meta i{color:var(--brand)}

/* 排查清单列表 */
.check-list{border-top:1px solid var(--line)}
.check-row{
  display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;
  padding:22px 18px;border-bottom:1px solid var(--line-soft);
  transition:background var(--t),box-shadow var(--t);
}
.check-row:hover{background:var(--surface-soft);box-shadow:inset 2px 0 0 var(--brand)}
.check-tag{
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.02em;
}
.check-main h3{font-size:17px;font-weight:700;margin-bottom:6px}
.check-main p{font-size:14px;color:var(--muted)}
.check-arrow{color:var(--faint);transition:transform var(--t),color var(--t)}
.check-row:hover .check-arrow{transform:translateX(4px);color:var(--brand)}

/* FAQ */
.faq-wrap{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item.is-open{box-shadow:var(--sh-card);border-color:#D8D0C4}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:var(--surface);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-size:13px;
  transition:transform var(--t),background var(--t),color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:rgba(226,84,42,.12);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease}
.faq-a-inner{padding:0 22px 22px 22px;color:var(--muted);font-size:15px;line-height:1.88;max-width:96%}

/* CTA band */
.cta-band{position:relative;background:var(--ink);color:#F2EFE9;overflow:hidden;padding:72px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
}
.cta-band::after{
  content:"";position:absolute;top:0;right:0;width:46%;height:100%;
  background:linear-gradient(180deg,rgba(226,84,42,.28),rgba(226,84,42,.06));
  clip-path:polygon(18% 0,100% 0,100% 100%,0 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(24px,3vw,32px);font-weight:700;color:#fff;line-height:1.3}
.cta-inner p{margin-top:14px;color:#C9D1CE;font-size:16px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}
.cta-band .btn-ghost-x{border-color:#EFEAE2;color:#F2EFE9}
.cta-band .btn-ghost-x:hover{background:#F2EFE9;color:var(--ink)}
.cta-note{margin-top:14px;font-size:13px;color:#9FAAA6;text-align:right}

/* Footer */
.site-footer{background:var(--ink);color:#D5DBD8;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.fb-logo{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.02em}
.fb-sub{font-size:11px;font-weight:700;letter-spacing:.08em;color:#8E9A96;margin:6px 0 18px}
.footer-brand p:not(.fb-logo):not(.fb-sub){font-size:14px;color:#A9B4B0;line-height:1.85;max-width:340px}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:#B8C2BE}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A9B4B0;margin-bottom:12px}
.footer-contact i{color:var(--teal);margin-top:4px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);margin-top:52px;padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8E9A96;
}

/* Responsive */
@media (max-width:1199px){
  .chipnav{gap:2px}
  .chip{padding:0 13px;font-size:13.5px}
}
@media (max-width:991px){
  .topbar{display:none}
  .mainnav-inner{height:60px;gap:14px}
  .chipnav{display:none}
  .hamburger{display:inline-flex}
  .nav-cta{display:none}
  .brand-main{font-size:17px}
  .cat-hero{padding:44px 0 52px}
  .section{padding:64px 0}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .mix-grid{grid-template-columns:1fr}
  .flow-row{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{justify-content:flex-start}
  .cta-note{text-align:left}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px}
}
@media (max-width:767px){
  .check-row{grid-template-columns:1fr;gap:8px;padding:20px 12px}
  .check-arrow{display:none}
  .media-body h3{font-size:18px}
}
@media (max-width:575px){
  .flow-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-lead{font-size:15.5px}
  .btn-x{width:100%;padding:0 20px}
  .cta-actions .btn-x{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-main:#E2542A;
  --c-main-dark:#c8461f;
  --c-ink:#12211F;
  --c-teal:#1F7A6B;
  --c-accent:#F5C13C;
  --c-bg:#F6F3EE;
  --c-card:#FFFFFF;
  --c-surface:#EFEAE2;
  --c-soft:#FBF9F5;
  --c-text:#17201E;
  --c-text-2:#5A6664;
  --c-text-3:#8B9491;
  --c-border:#E2DCD2;
  --c-divider:#EDE8E0;
  --c-success:#2E7D5B;
  --c-warn:#B8860B;
  --c-error:#B23A28;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --sh-card:0 1px 2px rgba(18,33,31,.04), 0 8px 24px -12px rgba(18,33,31,.10);
  --sh-hover:0 12px 32px -10px rgba(18,33,31,.18);
  --sh-float:0 20px 48px -16px rgba(18,33,31,.28);
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-main);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--c-main-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);}
p{margin:0;}
ul{margin:0;padding:0;}
::selection{background:rgba(226,84,42,.2);}

/* Bootstrap 覆盖 */
:root{
  --bs-body-bg:#F6F3EE;
  --bs-body-color:#17201E;
  --bs-primary-rgb:226,84,42;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --bs-link-color:#E2542A;
  --bs-link-hover-color:#c8461f;
  --bs-border-color:#E2DCD2;
}
.form-control:focus{border-color:var(--c-main);box-shadow:0 0 0 3px rgba(226,84,42,.22);}
a{--bs-link-color:var(--c-main);}

/* 容器 */
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1400px){.container-x{max-width:1280px;}}
@media (max-width:991px){.container-x{padding:0 28px;}}
@media (max-width:575px){.container-x{padding:0 20px;}}

/* 顶部说明条 */
.topbar{background:var(--c-ink);color:#EFEAE2;height:36px;display:flex;align-items:center;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.topbar-note{color:rgba(246,243,238,.72);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-links{display:flex;align-items:center;gap:22px;flex:0 0 auto;}
.topbar-links a{color:rgba(246,243,238,.86);font-size:13px;}
.topbar-links a:hover{color:var(--c-accent);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:1030;}
.mainbar{background:#fff;min-height:72px;display:flex;align-items:center;transition:box-shadow .2s ease,border-color .2s ease;}
.site-header.is-stuck .mainbar{box-shadow:0 8px 24px -18px rgba(18,33,31,.55);border-bottom:1px solid var(--c-divider);}
.mainbar-inner{display:flex;align-items:center;gap:24px;width:100%;padding-top:10px;padding-bottom:10px;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.brand-main{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;}
.brand-sub{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--c-text-3);margin-top:2px;}
.brand:hover .brand-main{color:var(--c-main);}
.seg-nav{display:flex;align-items:center;gap:4px;background:var(--c-surface);border-radius:999px;padding:4px;height:44px;margin:0 auto;}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap;border:1px solid transparent;}
.chip:hover{background:#E5DED3;color:var(--c-ink);}
.chip.is-active{background:#fff;color:var(--c-main);border-color:var(--c-border);box-shadow:0 1px 2px rgba(18,33,31,.06),0 4px 12px -6px rgba(18,33,31,.18);}
.mainbar-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-border);background:#fff;color:var(--c-ink);align-items:center;justify-content:center;cursor:pointer;font-size:17px;transition:border-color .18s ease,color .18s ease;}
.nav-toggle:hover{border-color:var(--c-main);color:var(--c-main);}

/* 按钮 */
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 28px;border-radius:var(--r-btn);background:var(--c-main);color:#fff;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.btn-main:hover{background:var(--c-main-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(226,84,42,.75);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-main:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(226,84,42,.3);}
.btn-main.is-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:9px;height:50px;padding:0 26px;border-radius:var(--r-btn);background:transparent;border:1.5px solid var(--c-ink);color:var(--c-ink);font-weight:700;font-size:15px;cursor:pointer;transition:background-color .2s ease,color .2s ease,transform .2s ease;}
.btn-line:hover{background:var(--c-ink);color:#F6F3EE;transform:translateY(-1px);}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--c-border);background:#fff;color:var(--c-ink);font-size:14px;font-weight:600;cursor:pointer;transition:border-color .18s ease,color .18s ease,transform .18s ease;}
.btn-ghost:hover{border-color:var(--c-main);color:var(--c-main);transform:translateY(-1px);}
.btn-ghost.is-done{border-color:var(--c-success);color:var(--c-success);}
.btn-underline{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--c-main);border-bottom:2px solid var(--c-accent);padding-bottom:2px;}
.btn-underline:hover{color:var(--c-main-dark);}

/* 抽屉导航 */
.nav-mask{position:fixed;inset:0;background:rgba(18,33,31,.52);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:1070;}
.nav-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:84%;max-width:360px;background:#fff;z-index:1080;padding:22px 22px 32px;overflow-y:auto;transform:translateX(104%);transition:transform .26s ease;box-shadow:-16px 0 40px -22px rgba(18,33,31,.45);}
.nav-drawer.is-open{transform:none;}
.nav-drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-divider);margin-bottom:18px;}
.nav-drawer-head span{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-text-3);}
.nav-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--c-border);background:#fff;color:var(--c-ink);cursor:pointer;}
.drawer-group{margin-bottom:22px;}
.drawer-group h3{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--c-text-3);margin-bottom:10px;}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:10px;color:var(--c-ink);font-size:15px;font-weight:600;background:var(--c-soft);margin-bottom:8px;}
.drawer-link:hover{background:#F1EBE1;color:var(--c-main);}
.drawer-link.is-active{background:rgba(226,84,42,.1);color:var(--c-main);}

/* 文章头部 */
.article-hero{padding:44px 0 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);}
.crumbs a{color:var(--c-text-3);}
.crumbs a:hover{color:var(--c-main);}
.crumbs .sep{display:inline-block;width:1px;height:12px;background:var(--c-border);}
.crumbs .current{color:var(--c-main);font-weight:700;max-width:340px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.badge-cat{display:inline-flex;align-items:center;gap:7px;background:rgba(31,122,107,.12);color:var(--c-teal);font-size:12px;font-weight:700;padding:6px 13px;border-radius:6px;margin-top:20px;}
.article-title{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.24;letter-spacing:-.02em;margin:16px 0 20px;max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14px;color:var(--c-text-2);padding-bottom:22px;border-bottom:1px solid var(--c-divider);}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-item i{color:var(--c-teal);font-size:13px;}
.meta-actions{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap;}

/* 封面 */
.cover-wrap{margin:32px 0 0;}
.cover-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);}
.cover-cap{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px;}

/* 文章布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:56px;align-items:start;padding:46px 0 80px;}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--c-text);text-align:left;word-break:break-word;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4;margin:2em 0 .6em;padding-left:14px;border-left:4px solid var(--c-main);}
.article-body h3{font-size:20px;font-weight:700;margin:1.7em 0 .5em;}
.article-body h4{font-size:17px;font-weight:700;margin:1.5em 0 .4em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.45em;}
.article-body li{margin:.45em 0;}
.article-body li::marker{color:var(--c-main);font-weight:700;}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--c-surface);border-left:4px solid var(--c-accent);border-radius:12px;color:var(--c-text-2);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:1.5em auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:10px 14px;text-align:left;vertical-align:top;}
.article-body thead th{background:var(--c-surface);font-weight:700;color:var(--c-ink);}
.article-body tbody tr:nth-child(even){background:var(--c-soft);}
.article-body code{font-family:var(--font-mono);font-size:14px;background:var(--c-surface);padding:2px 6px;border-radius:6px;color:var(--c-ink);}
.article-body pre{background:var(--c-ink);color:#F2EFE9;padding:18px 20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body a{color:var(--c-main);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.article-body a:hover{text-decoration-color:var(--c-accent);text-decoration-thickness:2px;}
.article-body hr{border:none;border-top:1px solid var(--c-divider);margin:2.4em 0;}

/* 目录 */
.toc{position:sticky;top:104px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:18px 16px 14px;box-shadow:var(--sh-card);}
.toc h2{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--c-text-3);margin-bottom:12px;}
.toc a{display:block;font-size:14px;line-height:1.5;color:var(--c-text-2);padding:7px 10px;border-radius:8px;border-left:2px solid transparent;margin-bottom:2px;}
.toc a.toc-l3{padding-left:22px;font-size:13px;color:var(--c-text-3);}
.toc a:hover{background:var(--c-soft);color:var(--c-ink);}
.toc a.is-active{color:var(--c-main);border-left-color:var(--c-main);background:var(--c-soft);font-weight:600;}
.toc-mobile{display:none;margin-bottom:26px;}
.toc-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--c-border);background:#fff;color:var(--c-ink);font-weight:700;font-size:14px;cursor:pointer;}
.toc-toggle i{transition:transform .22s ease;color:var(--c-main);}
.toc-toggle[aria-expanded="true"] i{transform:rotate(180deg);}
.toc-mobile-list{display:none;padding:12px 12px 6px;margin-top:8px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-card);}
.toc-mobile-list.is-open{display:block;}
.toc-mobile-list a{display:block;font-size:14px;color:var(--c-text-2);padding:8px 10px;border-radius:8px;}
.toc-mobile-list a:hover{background:var(--c-soft);color:var(--c-main);}

/* 空态 */
.empty-state{border:1px dashed var(--c-border);border-radius:var(--r-card);background:#fff;padding:48px 28px;text-align:center;}
.empty-state i{font-size:30px;color:var(--c-text-3);margin-bottom:14px;display:block;}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:8px;}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:20px;}

/* 标签 & 翻页 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-divider);}
.tag-row .tag-label{font-size:13px;color:var(--c-text-3);font-weight:700;letter-spacing:.08em;margin-right:4px;}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:var(--c-surface);color:var(--c-ink);font-size:13px;font-weight:600;}
.tag:hover{background:var(--c-main);color:#fff;}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;}
.pager-card{display:block;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D8D0C4;}
.pager-dir{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:10px;}
.pager-next .pager-dir{justify-content:flex-end;}
.pager-title{display:block;font-size:15.5px;font-weight:700;color:var(--c-ink);line-height:1.55;}
.back-row{margin-top:26px;text-align:center;}

/* 相关推荐 */
.rel-section{padding:0 0 84px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-main);margin-bottom:10px;text-transform:uppercase;}
.eyebrow-light{color:var(--c-accent);}
.rel-list{display:flex;flex-direction:column;gap:14px;}
.rel-item{display:grid;grid-template-columns:132px minmax(0,1fr) auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--c-border);border-left:2px solid transparent;border-radius:var(--r-card);padding:14px 18px 14px 14px;box-shadow:var(--sh-card);transition:background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
.rel-item:hover{background:var(--c-soft);border-left-color:var(--c-main);transform:translateY(-2px);box-shadow:var(--sh-hover);}
.rel-thumb{width:132px;aspect-ratio:16/9;object-fit:cover;border-radius:10px;}
.rel-title{display:block;font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.5;margin-bottom:6px;}
.rel-desc{font-size:13.5px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;}
.rel-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--c-text-3);}
.rel-arrow{color:var(--c-main);font-size:16px;transition:transform .2s ease;}
.rel-item:hover .rel-arrow{transform:translateX(4px);}

/* CTA 带 */
.cta-band{position:relative;background:var(--c-ink);color:#F2EFE9;padding:76px 0;overflow:hidden;clip-path:polygon(0 4%,100% 0,100% 96%,0 100%);}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;opacity:.18;}
.cta-band::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 16px);pointer-events:none;}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.32;margin-bottom:14px;}
.cta-copy p{color:rgba(246,243,238,.76);font-size:15px;max-width:520px;}
.cta-form{background:rgba(255,255,255,.07);border:1px solid rgba(246,243,238,.18);border-radius:var(--r-card);padding:24px;}
.cta-form .form-label{display:block;font-size:14px;font-weight:700;color:#fff;margin-bottom:10px;}
.input-row{display:flex;gap:12px;}
.form-control-x{height:46px;border-radius:var(--r-input);border:1px solid rgba(246,243,238,.28);background:rgba(255,255,255,.1);color:#fff;font-size:15px;padding:0 16px;flex:1 1 auto;min-width:0;}
.form-control-x::placeholder{color:rgba(246,243,238,.55);}
.form-control-x:focus{outline:none;background:rgba(255,255,255,.16);border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(245,193,60,.25);}
.form-hint{font-size:12px;color:rgba(246,243,238,.6);margin-top:12px;line-height:1.7;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#EFEAE2;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .fb-logo{font-size:20px;font-weight:800;color:#fff;margin-bottom:4px;letter-spacing:-.01em;}
.footer-brand .fb-sub{font-size:11px;font-weight:700;letter-spacing:.08em;color:rgba(246,243,238,.45);margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(246,243,238,.72);}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:rgba(246,243,238,.72);font-size:14px;}
.footer-col a:hover{color:var(--c-accent);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(246,243,238,.72);font-size:14px;line-height:1.7;}
.footer-contact i{color:var(--c-accent);margin-top:6px;font-size:13px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;border-top:1px solid rgba(246,243,238,.14);margin-top:56px;padding:22px 0 30px;font-size:13px;color:rgba(246,243,238,.55);}

/* 响应式 */
@media (max-width:1199px){
  .article-layout{gap:40px;}
}
@media (max-width:991px){
  .topbar{display:none;}
  .mainbar{min-height:60px;}
  .brand-main{font-size:16px;}
  .brand-sub{font-size:10px;}
  .seg-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .mainbar-actions .btn-main.is-sm{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:32px 0 64px;}
  .toc{display:none;}
  .toc-mobile{display:block;}
  .cta-inner{grid-template-columns:1fr;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .rel-item{grid-template-columns:110px minmax(0,1fr) auto;gap:14px;}
  .rel-thumb{width:110px;}
}
@media (max-width:767px){
  .pager{grid-template-columns:1fr;}
  .pager-next .pager-dir{justify-content:flex-start;}
  .meta-actions{margin-left:0;width:100%;}
  .cover-wrap{margin-top:24px;}
  .article-hero{padding-top:32px;}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .rel-item{grid-template-columns:minmax(0,1fr) auto;padding:16px;}
  .rel-thumb{display:none;}
  .input-row{flex-direction:column;}
  .input-row .btn-main{width:100%;}
  .article-body{font-size:16px;line-height:1.85;}
  .crumbs .current{max-width:180px;}
  .cta-band{clip-path:polygon(0 2%,100% 0,100% 98%,0 100%);padding:60px 0;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand:#E2542A;
  --brand-deep:#C8471F;
  --ink:#12211F;
  --ink-soft:#1B302C;
  --teal:#1F7A6B;
  --gold:#F5C13C;
  --bg:#F6F3EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE2;
  --surface-3:#FBF9F5;
  --text:#17201E;
  --text-2:#5A6664;
  --text-3:#8B9491;
  --line:#E2DCD2;
  --line-soft:#EDE8E0;
  --ok:#2E7D5B;
  --warn:#B8860B;
  --err:#B23A28;
  --focus-ring:rgba(226,84,42,.28);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-chip:999px;
  --r-badge:6px;
  --sh-card:0 1px 2px rgba(18,33,31,.04), 0 8px 24px -12px rgba(18,33,31,.10);
  --sh-hover:0 12px 32px -10px rgba(18,33,31,.18);
  --sh-float:0 20px 48px -16px rgba(18,33,31,.28);
  --t-fast:180ms ease;
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Roboto Mono",Menlo,monospace;
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary-rgb:226,84,42;
  --bs-border-radius:14px;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-deep);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t-fast),text-decoration-color var(--t-fast)}
a:hover{color:var(--brand-deep);text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px;text-underline-offset:4px}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--text);letter-spacing:-0.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px;border-radius:6px}

.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1400px){.container-x{max-width:1280px}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--ink);color:#EDE8E0;font-size:13px}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:36px;height:36px;
}
.topbar-note{margin:0;color:#B9C2BE;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;align-items:center;gap:22px;flex-shrink:0}
.topbar-links a{color:#EDE8E0;font-size:13px}
.topbar-links a:hover{color:var(--gold);text-decoration:none}

/* ---------- 主导航 ---------- */
.nav-main{
  position:sticky;top:0;z-index:1030;
  background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t-fast),border-color var(--t-fast);
}
.nav-main.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 8px 20px -14px rgba(18,33,31,.28);
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;height:72px;
}
.brand{display:flex;flex-direction:column;justify-content:center;gap:1px;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-name{
  font-size:19px;font-weight:800;letter-spacing:-0.02em;
  color:var(--ink);line-height:1.15;
}
.brand-sub{
  font-size:11px;font-weight:700;letter-spacing:.08em;
  color:var(--text-3);text-transform:uppercase;line-height:1.2;
}
.pill-nav{
  display:flex;align-items:center;gap:4px;
  background:var(--surface-2);
  padding:4px;border-radius:var(--r-chip);
  height:44px;margin:0 auto;
}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 16px;border-radius:var(--r-chip);
  font-size:14px;font-weight:600;color:var(--ink);
  white-space:nowrap;transition:background var(--t-fast),color var(--t-fast),box-shadow var(--t-fast);
}
.chip:hover{background:#E5DFD5;color:var(--ink);text-decoration:none}
.chip.is-active{
  background:var(--surface);color:var(--brand);
  border:1px solid var(--line);
  box-shadow:0 2px 8px -4px rgba(18,33,31,.22);
}
.nav-cta{display:flex;align-items:center;gap:14px;flex-shrink:0;margin-left:24px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;transition:border-color var(--t-fast),background var(--t-fast);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform var(--t-fast),opacity var(--t-fast)}
.nav-toggle:hover{border-color:var(--brand);background:var(--surface-3)}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1.5px solid transparent;transition:transform var(--t-fast),box-shadow var(--t-fast),background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.btn-x:hover{text-decoration:none;transform:translateY(-1px)}
.btn-x:active{transform:translateY(0)}
.btn-primary-x{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(226,84,42,.85)}
.btn-primary-x:hover{background:var(--brand-deep);color:#fff;box-shadow:0 14px 26px -12px rgba(226,84,42,.9)}
.btn-ghost-x{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost-x:hover{background:var(--ink);color:#F6F3EE}
.btn-ghost-x.is-light{color:#F6F3EE;border-color:rgba(246,243,238,.5)}
.btn-ghost-x.is-light:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE}
.btn-link-x{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:700;color:var(--brand);
  border-bottom:2px solid var(--gold);padding-bottom:2px;
}
.btn-link-x:hover{text-decoration:none;color:var(--brand-deep)}
.btn-x:disabled,.btn-x.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm-x{height:40px;padding:0 20px;font-size:14px}

/* ---------- 抽屉导航 ---------- */
.drawer{position:fixed;inset:0;z-index:1060;display:none}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(18,33,31,.55);backdrop-filter:blur(2px)}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(340px,86vw);
  background:var(--surface);padding:22px 22px 32px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;box-shadow:var(--sh-float);
  animation:drawerIn 220ms ease;
}
@keyframes drawerIn{from{transform:translateX(24px);opacity:.6}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head .dh-logo{font-size:16px;font-weight:800;color:var(--ink);line-height:1.3}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);cursor:pointer;font-size:16px;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-label{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--text-3);margin:6px 0 2px}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:10px;color:var(--ink);
  font-size:15px;font-weight:600;background:var(--surface-3);
  border:1px solid transparent;transition:background var(--t-fast),border-color var(--t-fast),color var(--t-fast);
}
.drawer-nav a:hover{background:var(--surface-2);text-decoration:none}
.drawer-nav a.is-active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- Hero ---------- */
.hero-cat2{
  position:relative;overflow:hidden;background:var(--ink);
  color:#F6F3EE;padding:84px 0 68px;min-height:380px;
  display:flex;align-items:center;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.28;filter:saturate(.85);
}
.hero-cat2::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);
}
.hero-cat2::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(18,33,31,.72) 0%,rgba(18,33,31,.9) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-center{max-width:860px;margin:0 auto;text-align:center}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);margin:0 0 14px;
}
.eyebrow.is-light{color:var(--gold)}
.hero-title{
  font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.2;
  letter-spacing:-0.02em;color:#FFFFFF;margin:0 0 16px;
}
.hero-lead{
  font-size:17px;line-height:1.8;color:#CDD5D1;margin:0 auto 26px;max-width:660px;
}
.anchor-chips{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;
}
.anchor-chips a{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-chip);
  font-size:13.5px;font-weight:600;color:#EDE8E0;
  background:rgba(246,243,238,.10);
  border:1px solid rgba(246,243,238,.22);
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.anchor-chips a:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.is-alt{background:var(--surface-2)}
.section.is-paper{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.sec-title{
  font-size:clamp(23px,2.6vw,34px);font-weight:700;line-height:1.28;
  letter-spacing:-0.015em;margin:0 0 14px;
}
.sec-desc{font-size:16px;line-height:1.85;color:var(--text-2);margin:0}
.sec-desc:last-child{margin-bottom:0}

/* ---------- 步骤条 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin-top:8px;
}
.step-item{
  position:relative;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px 20px 22px;
  box-shadow:var(--sh-card);
  transition:transform var(--t-fast),box-shadow var(--t-fast),border-color var(--t-fast);
}
.step-item:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D8D0C4}
.step-item::after{
  content:"";position:absolute;top:46px;right:-20px;width:20px;height:2px;
  background:var(--line);z-index:0;
}
.step-item:last-child::after{display:none}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
  color:#fff;background:var(--brand);
  border-radius:var(--r-badge);padding:3px 10px;margin-bottom:14px;
}
.step-item h3{font-size:16.5px;font-weight:700;line-height:1.45;margin:0 0 8px}
.step-item p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0}

/* ---------- 交错图文 ---------- */
.zigzag{display:flex;flex-direction:column;gap:76px}
.zz-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.zz-row.is-rev .zz-media{order:2}
.zz-media{position:relative}
.zz-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);box-shadow:var(--sh-card);
}
.zz-media .zz-tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(18,33,31,.82);color:#F6F3EE;
  font-size:12.5px;font-weight:700;letter-spacing:.04em;
  padding:6px 12px;border-radius:var(--r-badge);
}
.zz-text h3{font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.32;margin:0 0 14px}
.zz-text p{font-size:15.5px;line-height:1.85;color:var(--text-2);margin:0 0 18px}
.zz-list{display:flex;flex-direction:column;gap:10px}
.zz-list li{
  position:relative;padding-left:26px;
  font-size:15px;line-height:1.75;color:var(--text);
}
.zz-list li::before{
  content:"";position:absolute;left:2px;top:10px;
  width:8px;height:8px;border-radius:2px;
  background:var(--teal);transform:rotate(45deg);
}

/* ---------- 要点 + 数据 ---------- */
.points-grid{display:grid;grid-template-columns:minmax(280px,4fr) minmax(0,8fr);gap:48px;align-items:start}
.points-intro h3{font-size:clamp(20px,2.1vw,26px);font-weight:700;line-height:1.34;margin:0 0 14px}
.points-intro p{font-size:15.5px;line-height:1.85;color:var(--text-2);margin:0 0 22px}
.point-cards{display:flex;flex-direction:column;gap:14px}
.point-card{
  display:grid;grid-template-columns:44px 1fr;gap:16px;align-items:start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 22px;
  box-shadow:var(--sh-card);
  transition:transform var(--t-fast),box-shadow var(--t-fast),border-color var(--t-fast);
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D8D0C4}
.point-icon{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,122,107,.10);color:var(--teal);font-size:17px;
}
.point-card h4{font-size:16.5px;font-weight:700;margin:0 0 6px}
.point-card p{font-size:14.5px;line-height:1.78;color:var(--text-2);margin:0}

.data-band{
  margin-top:56px;background:var(--ink);color:#EDE8E0;
  border-radius:var(--r-card);padding:30px 34px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.data-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(245,193,60,.16) 1px,transparent 1px);
  background-size:18px 18px;opacity:.6;
}
.db-lead{position:relative;z-index:1;max-width:360px}
.db-lead h3{color:#FFFFFF;font-size:18px;font-weight:700;margin:0 0 6px}
.db-lead p{margin:0;font-size:13.5px;color:#A9B4B0;line-height:1.7}
.db-items{position:relative;z-index:1;display:flex;align-items:center;gap:34px;flex-wrap:wrap}
.db-item{display:flex;flex-direction:column;gap:2px}
.db-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--gold);line-height:1.1;letter-spacing:-0.01em;
}
.db-label{font-size:13px;color:#A9B4B0}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;overflow:hidden;
  transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.faq-item:hover{border-color:#D8D0C4}
.faq-item[open]{box-shadow:var(--sh-card)}
.faq-item summary{
  list-style:none;cursor:pointer;user-select:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16.5px;font-weight:700;line-height:1.55;color:var(--text);
  transition:color var(--t-fast);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex-shrink:0;
  font-family:var(--font-mono);font-size:20px;font-weight:700;
  color:var(--brand);line-height:1;
  transition:transform var(--t-fast),color var(--t-fast);
}
.faq-item[open] summary{color:var(--brand)}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-a{padding:0 24px 22px 24px;border-top:1px solid var(--line-soft);padding-top:16px;margin-top:-2px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--text-2);margin:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#F6F3EE;
  padding:74px 0;overflow:hidden;
  clip-path:polygon(0 3%,100% 0,100% 97%,0 100%);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 2px,transparent 2px 16px);
}
.cta-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;align-items:center;
}
.cta-inner h2{
  color:#FFFFFF;font-size:clamp(23px,2.7vw,34px);font-weight:700;
  line-height:1.3;margin:0 0 14px;letter-spacing:-0.015em;
}
.cta-inner p{color:#BFC9C5;font-size:15.5px;line-height:1.85;margin:0;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-hint{font-size:13px;color:#8F9B97;margin:0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#D5DCD8;padding:64px 0 0;font-size:14.5px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .fb-logo{font-size:19px;font-weight:800;color:#FFFFFF;margin:0 0 2px;letter-spacing:-0.01em}
.footer-brand .fb-sub{
  font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--text-3);
  text-transform:uppercase;margin:0 0 14px;
}
.footer-brand p{color:#A9B4B0;line-height:1.8;font-size:14px;margin:0}
.footer-col h3{
  font-size:14px;font-weight:700;color:#FFFFFF;letter-spacing:.02em;margin:0 0 16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#A9B4B0;font-size:14px}
.footer-col a:hover{color:var(--gold);text-decoration:none}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#A9B4B0;line-height:1.7}
.footer-contact i{color:var(--teal);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(237,232,224,.14);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8F9B97;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .steps{grid-template-columns:repeat(3,1fr)}
  .step-item::after{display:none}
}
@media (max-width:991px){
  .container-x{padding:0 28px}
  .topbar{display:none}
  .nav-inner{min-height:60px;height:60px;gap:14px}
  .brand-name{font-size:17px}
  .pill-nav{display:none}
  .nav-cta{margin-left:auto}
  .nav-cta .btn-x{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .points-grid{grid-template-columns:1fr;gap:32px}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container-x{padding:0 20px}
  .hero-cat2{padding:64px 0 52px;min-height:0}
  .hero-center{text-align:left}
  .anchor-chips{justify-content:flex-start}
  .steps{grid-template-columns:1fr;gap:14px}
  .zigzag{gap:52px}
  .zz-row{grid-template-columns:1fr;gap:22px}
  .zz-row.is-rev .zz-media{order:0}
  .data-band{padding:26px 22px;gap:22px}
  .db-items{gap:26px}
  .faq-item summary{padding:18px 18px;font-size:15.5px}
  .faq-a{padding:14px 18px 20px}
  .site-footer{padding-top:52px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575px){
  body{font-size:15.5px;line-height:1.85}
  .btn-x{width:100%;height:48px;padding:0 20px}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .anchor-chips a{height:36px;padding:0 15px;font-size:13px}
  .db-num{font-size:22px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --brand:#E2542A;
  --brand-deep:#C6451F;
  --ink:#12211F;
  --ink-soft:#1B2E2B;
  --teal:#1F7A6B;
  --gold:#F5C13C;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --surface:#EFEAE2;
  --soft:#FBF9F5;
  --text:#17201E;
  --muted:#5A6664;
  --weak:#8B9491;
  --border:#E2DCD2;
  --line:#EDE8E0;
  --ok:#2E7D5B;
  --warn:#B8860B;
  --err:#B23A28;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(18,33,31,.04),0 8px 24px -12px rgba(18,33,31,.10);
  --sh-2:0 12px 32px -10px rgba(18,33,31,.18);
  --sh-pop:0 20px 48px -16px rgba(18,33,31,.28);
  --focus:0 0 0 3px rgba(226,84,42,.28);
  --ease:200ms ease;

  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary-rgb:226,84,42;
  --bs-border-radius:12px;
  --bs-border-color:var(--border);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-deep);
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline;text-decoration-color:var(--gold);text-decoration-thickness:2px;text-underline-offset:4px}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:6px}
.num,.time,.stat-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1400px){.container-x{max-width:1280px}}
@media (max-width:991px){.container-x{padding:0 28px}}
@media (max-width:575px){.container-x{padding:0 20px}}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--ink);color:#E9E4DB;font-size:13px;min-height:36px;display:flex;align-items:center}
.topbar .container-x{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.topbar-note{opacity:.76;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-links{display:flex;gap:22px;flex:0 0 auto}
.topbar-links a{color:#E9E4DB;opacity:.86;font-size:13px}
.topbar-links a:hover{color:var(--gold);opacity:1;text-decoration:none}
@media (max-width:767px){.topbar-note{display:none}.topbar .container-x{justify-content:center}.topbar-links{gap:16px}}

/* ---------- 主导航 ---------- */
.site-head{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .22s ease,border-color .22s ease}
.site-head.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 18px -12px rgba(18,33,31,.22)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;flex-direction:column;gap:2px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.01em;line-height:1.12;color:var(--ink)}
.brand-sub{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--weak);line-height:1.2}
.tab-rail{background:var(--surface);border-radius:999px;padding:4px;display:flex;align-items:center;gap:2px;height:44px}
.tab-chip{height:36px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;white-space:nowrap;transition:background var(--ease),color var(--ease),box-shadow var(--ease)}
.tab-chip:hover{background:#E5DFD5;color:var(--ink);text-decoration:none}
.tab-chip.active{background:#fff;color:var(--brand);border:1px solid var(--border);box-shadow:0 2px 8px -4px rgba(18,33,31,.22)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 28px;border-radius:var(--r-btn);background:var(--brand);color:#fff;font-weight:700;font-size:15px;border:1px solid var(--brand);cursor:pointer;transition:background var(--ease),transform var(--ease),box-shadow var(--ease)}
.btn-main:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:none;box-shadow:none}
.btn-ghost-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:50px;padding:0 26px;border-radius:var(--r-btn);background:transparent;border:1.5px solid var(--ink);color:var(--ink);font-weight:700;font-size:15px;cursor:pointer;transition:background var(--ease),color var(--ease)}
.btn-ghost-line:hover{background:var(--ink);color:#F3EFE8;text-decoration:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);padding-bottom:2px;border-bottom:2px solid var(--gold)}
.btn-text:hover{text-decoration:none;color:var(--brand-deep)}
.cta-icon,.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;color:var(--ink);font-size:17px;cursor:pointer}
.cta-icon{background:var(--brand);border-color:var(--brand);color:#fff}
@media (max-width:1199px){.tab-chip{padding:0 12px;font-size:13.5px}}
@media (max-width:991px){
  .tab-rail{display:none}
  .nav-inner{height:60px;gap:12px}
  .nav-cta{display:none}
  .cta-icon,.nav-toggle{display:inline-flex}
  .brand-main{font-size:17px}
}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1060;visibility:hidden;opacity:0;transition:opacity .2s ease,visibility .2s ease}
.drawer.open{visibility:visible;opacity:1}
.drawer-backdrop{position:absolute;inset:0;background:rgba(18,33,31,.52);border:0}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(360px,88vw);background:#fff;padding:20px 22px 32px;overflow-y:auto;transform:translateX(100%);transition:transform .26s ease;box-shadow:var(--sh-pop)}
.drawer.open .drawer-panel{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--ink);cursor:pointer}
.drawer-group{margin-top:22px}
.drawer-group h4{font-size:12px;letter-spacing:.1em;color:var(--weak);font-weight:700;margin-bottom:10px;text-transform:uppercase}
.drawer-group a{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:12px;color:var(--ink);font-weight:600;font-size:15px;border:1px solid transparent}
.drawer-group a:hover{background:var(--soft);text-decoration:none;border-color:var(--line)}
.drawer-group a.active{background:#FFF3EE;color:var(--brand);border-color:#F6D6C9}
.drawer-cta{margin-top:26px}

/* ---------- Hero（矮版） ---------- */
.page-hero{position:relative;overflow:hidden;background-color:var(--ink);color:#F3EFE8;padding:64px 0 60px;min-height:360px;display:flex;align-items:center}
.page-hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center right;opacity:.24}
.page-hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.045) 0 2px,transparent 2px 15px);pointer-events:none}
.page-hero .container-x{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(243,239,232,.68);margin-bottom:20px}
.crumb a{color:rgba(243,239,232,.82)}
.crumb a:hover{color:var(--gold);text-decoration:none}
.crumb .sep{opacity:.45}
.crumb .now{color:var(--gold);font-weight:700}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--gold);margin-bottom:14px;display:block}
.page-hero h1{color:#fff;font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.02em;max-width:900px}
.hero-lead{margin:18px 0 0;max-width:720px;font-size:17px;line-height:1.8;color:rgba(243,239,232,.82)}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.anchor-chip{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;border:1px solid rgba(243,239,232,.30);color:#F3EFE8;font-size:13.5px;font-weight:700;background:rgba(255,255,255,.06);transition:background var(--ease),border-color var(--ease),color var(--ease)}
.anchor-chip:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none}
@media (max-width:991px){.page-hero{min-height:0;padding:48px 0 44px}}
@media (max-width:575px){.hero-lead{font-size:15.5px}.anchor-row{margin-top:22px}}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-alt{background:#fff}
.sec-head{margin-bottom:36px;max-width:820px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15.5px}
.sec-head .eyebrow{color:var(--brand);margin-bottom:10px}
@media (max-width:991px){.section{padding:64px 0}.section-tight{padding:52px 0}.sec-head{margin-bottom:28px}}

/* ---------- 侧栏 + 内容 ---------- */
.content-shell{display:grid;grid-template-columns:258px minmax(0,1fr);gap:52px;align-items:start}
.side-toc{position:sticky;top:96px}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-1)}
.side-title{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--weak);margin-bottom:12px}
.toc-list a{display:block;padding:9px 12px;font-size:14px;font-weight:600;color:var(--muted);border-left:2px solid var(--line);border-radius:0 8px 8px 0;transition:all var(--ease)}
.toc-list a:hover{background:var(--soft);color:var(--ink);text-decoration:none;border-left-color:#C9C0B3}
.toc-list a.active{background:#FFF5F0;color:var(--brand);border-left-color:var(--brand)}
.side-help{margin-top:16px;background:var(--ink);color:#F3EFE8;border-radius:var(--r-card);padding:20px}
.side-help h3{color:#fff;font-size:16px;margin-bottom:8px}
.side-help p{font-size:13.5px;color:rgba(243,239,232,.78);margin-bottom:14px}
.side-help .btn-main{height:44px;width:100%;font-size:14px}
@media (max-width:991px){
  .content-shell{grid-template-columns:1fr;gap:32px}
  .side-toc{position:static}
  .side-card{box-shadow:none}
}

.article-body{font-size:16.5px;line-height:1.9}
.block{margin-bottom:64px;scroll-margin-top:110px}
.block:last-child{margin-bottom:0}
.block > h2{font-size:clamp(22px,2.4vw,29px);font-weight:700;padding-left:16px;border-left:4px solid var(--brand);line-height:1.35}
.block-intro{margin-top:14px;color:var(--muted);font-size:15.5px;max-width:760px}
.block > * + *{margin-top:22px}

/* 编号列表 */
.num-list li{display:flex;gap:18px;padding:20px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease)}
.num-list li + li{margin-top:12px}
.num-list li:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.num-badge{flex:0 0 auto;width:42px;height:42px;border-radius:12px;background:var(--surface);color:var(--ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px}
.num-list h3{font-size:16.5px;margin-bottom:6px}
.num-list p{margin:0;color:var(--muted);font-size:15px}

/* 手风琴 */
.qa-accordion{--bs-accordion-border-color:var(--border);--bs-accordion-btn-focus-box-shadow:var(--focus);--bs-accordion-active-bg:#FFF5F0;--bs-accordion-active-color:var(--brand);--bs-accordion-border-radius:12px;--bs-accordion-inner-border-radius:11px}
.qa-accordion .accordion-item{border:1px solid var(--border);border-radius:12px;background:#fff;margin-bottom:10px;overflow:hidden;box-shadow:var(--sh-1)}
.qa-accordion .accordion-item:last-child{margin-bottom:0}
.qa-accordion .accordion-button{font-weight:700;font-size:16px;color:var(--ink);padding:18px 20px;background:#fff;box-shadow:none;line-height:1.5}
.qa-accordion .accordion-button:not(.collapsed){color:var(--brand);background:#FFF8F4}
.qa-accordion .accordion-button::after{width:16px;height:16px;background-size:16px;transition:transform .2s ease}
.qa-accordion .accordion-body{padding:2px 20px 20px 20px;color:var(--muted);font-size:15.5px;line-height:1.85;background:#fff}
.qa-accordion .accordion-body p:last-child{margin-bottom:0}

/* 图文条目 */
.qa-article{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:28px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);align-items:start}
.qa-article + .qa-article{margin-top:16px}
.qa-article h3{font-size:17.5px;margin-bottom:10px}
.qa-article p{margin:0 0 10px;color:var(--muted);font-size:15.2px}
.qa-article p:last-of-type{margin-bottom:0}
.qa-article img{border-radius:var(--r-img);aspect-ratio:16/10;object-fit:cover;width:100%}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.badge-soft{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--r-badge);font-size:12.5px;font-weight:700;background:#E7F2EF;color:#12594D}
.badge-soft.gold{background:#FDF3DA;color:#7A5A05}
.badge-soft.orange{background:#FDEAE2;color:#A93A16}
@media (max-width:767px){.qa-article{grid-template-columns:1fr}.qa-article img{order:-1}}

/* 表格 */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--r-card);background:#fff}
table.qa-table{width:100%;border-collapse:collapse;font-size:15px;min-width:640px}
.qa-table th,.qa-table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.qa-table thead th{background:var(--surface);font-size:13.5px;font-weight:800;color:var(--ink);letter-spacing:.02em;white-space:nowrap}
.qa-table tbody tr:nth-child(even){background:var(--soft)}
.qa-table tbody tr:last-child td{border-bottom:0}
.qa-table td:first-child{font-weight:700;color:var(--ink);width:30%}

/* 检查清单 */
.check-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:15.5px;color:var(--muted)}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--teal);margin-top:6px;font-size:14px}
.check-list strong{color:var(--ink)}

/* 数据条 */
.stat-band{background:var(--ink);color:#F3EFE8;border-radius:18px;padding:44px;position:relative;overflow:hidden}
.stat-band::after{content:"";position:absolute;right:-60px;bottom:-80px;width:320px;height:320px;background-image:radial-gradient(rgba(245,193,60,.28) 1.4px,transparent 1.5px);background-size:16px 16px;opacity:.5;pointer-events:none}
.stat-grid{position:relative;z-index:2;display:grid;grid-template-columns:290px minmax(0,1fr);gap:44px;align-items:start}
.stat-stack li{padding:16px 0;border-bottom:1px solid rgba(243,239,232,.14)}
.stat-stack li:first-child{padding-top:0}
.stat-stack li:last-child{border-bottom:0;padding-bottom:0}
.stat-num{display:block;font-size:30px;font-weight:800;color:var(--gold);line-height:1.15}
.stat-stack span.lbl{font-size:13.5px;color:rgba(243,239,232,.72)}
.stat-copy h2{color:#fff;font-size:clamp(21px,2.3vw,28px);margin-bottom:14px}
.stat-copy p{color:rgba(243,239,232,.78);font-size:15.5px}
.stat-timeline{margin-top:22px;border-left:2px solid rgba(245,193,60,.5);padding-left:20px}
.stat-timeline li{position:relative;padding:10px 0;color:rgba(243,239,232,.86);font-size:14.5px}
.stat-timeline li::before{content:"";position:absolute;left:-26px;top:18px;width:10px;height:10px;border-radius:50%;background:var(--brand);border:2px solid var(--ink)}
@media (max-width:991px){.stat-band{padding:30px}.stat-grid{grid-template-columns:1fr;gap:28px}}

/* CTA + 表单 */
.cta-band{position:relative;overflow:hidden;background:var(--ink);color:#F3EFE8;padding:76px 0}
.cta-band::before{content:"";position:absolute;top:0;right:0;width:46%;height:100%;background:linear-gradient(160deg,rgba(226,84,42,.35),rgba(18,33,31,0) 68%);clip-path:polygon(18% 0,100% 0,100% 100%,0 100%)}
.cta-band::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 16px);pointer-events:none}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,430px);gap:52px;align-items:start}
.cta-copy .eyebrow{color:var(--gold)}
.cta-copy h2{color:#fff;font-size:clamp(24px,3vw,36px);margin-bottom:16px}
.cta-copy p{color:rgba(243,239,232,.8);font-size:16px;max-width:520px}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(243,239,232,.86);font-size:15px}
.cta-points i{color:var(--gold);margin-top:6px}
.form-card{background:rgba(255,255,255,.96);border-radius:16px;padding:28px;box-shadow:var(--sh-pop)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card > p{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.f-field{margin-bottom:16px}
.f-field label{display:block;font-size:14px;font-weight:700;color:var(--ink);margin-bottom:7px}
.f-control{width:100%;height:46px;padding:0 14px;border-radius:var(--r-input);border:1px solid var(--border);background:#fff;color:var(--text);font-size:15px;transition:border-color var(--ease),box-shadow var(--ease)}
textarea.f-control{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.f-control::placeholder{color:var(--weak)}
.f-control:focus{border-color:var(--brand);box-shadow:var(--focus);outline:none}
.f-help{font-size:12px;color:var(--weak);margin-top:6px}
.f-privacy{font-size:12px;color:var(--weak);margin-top:14px;line-height:1.7}
.form-card .btn-main{width:100%;margin-top:6px}
@media (max-width:991px){.cta-band{padding:56px 0}.cta-grid{grid-template-columns:1fr;gap:34px}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#E7E2D9;padding:72px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.fb-logo{font-size:18px;font-weight:800;color:#fff;margin-bottom:4px}
.fb-sub{font-size:11px;letter-spacing:.08em;color:var(--weak);font-weight:700;margin-bottom:14px}
.footer-brand p{font-size:14px;color:rgba(231,226,217,.72);line-height:1.8;margin:0}
.footer-col h3{font-size:14px;font-weight:800;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col a{color:rgba(231,226,217,.74);font-size:14px}
.footer-col a:hover{color:var(--gold);text-decoration:none}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(231,226,217,.72);font-size:14px;line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:6px;font-size:13px}
.footer-bottom{margin-top:56px;padding-top:22px;border-top:1px solid rgba(231,226,217,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(231,226,217,.58)}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:575px){.site-footer{padding:52px 0 20px}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-bottom{margin-top:36px;flex-direction:column;gap:8px}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
}