/* roulang page: index */
:root{
  --c-ink:#0E1512;
  --c-brand:#12362A;
  --c-brand-2:#1B5540;
  --c-deep:#08201A;
  --c-accent:#C3EE4F;
  --c-accent-soft:#EAF9C9;
  --c-flag:#D8622F;
  --c-paper:#FAF8F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFE6;
  --c-line:#E4E0D4;
  --c-text:#151B18;
  --c-muted:#5C6660;
  --c-muted-2:#8A938E;
  --r-xs:6px;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,21,18,.05);
  --sh-2:0 10px 30px -18px rgba(14,21,18,.35);
  --sh-3:0 24px 60px -32px rgba(14,21,18,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--c-paper);
  color:var(--c-text);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color 160ms var(--ease)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--c-brand);line-height:1.25}
h1{font-size:48px;line-height:1.18}
h2{font-size:34px}
h3{font-size:24px}
h4{font-size:18px;font-weight:600}
::selection{background:var(--c-accent);color:var(--c-ink)}
.container,.container-fluid{
  width:100%;
  max-width:1220px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}
@media (max-width:767px){
  .container,.container-fluid{padding-left:18px;padding-right:18px}
}

/* ---------- 通用组件 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-s);
  background:var(--c-accent);color:var(--c-ink);
  font-size:16px;font-weight:600;line-height:1.2;
  border:1.5px solid var(--c-accent);
  cursor:pointer;
  transition:background 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease),color 220ms var(--ease);
}
.btn-main:hover{background:#B4E339;color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-main:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-s);
  background:transparent;color:var(--c-brand);
  font-size:16px;font-weight:600;line-height:1.2;
  border:1.5px solid var(--c-brand);
  cursor:pointer;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.btn-line:hover{background:var(--c-brand);color:var(--c-paper);transform:translateY(-1px)}
.btn-line:active{transform:translateY(0)}
.btn-line:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn-line.on-dark{border-color:rgba(250,248,243,.55);color:var(--c-paper)}
.btn-line.on-dark:hover{background:var(--c-paper);color:var(--c-deep);border-color:var(--c-paper)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:var(--r-s)}
.link-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-muted);
  position:relative;padding-bottom:2px;
}
.link-text::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms var(--ease);
}
.link-text:hover{color:var(--c-brand)}
.link-text:hover::after{transform:scaleX(1)}
.link-text i{transition:transform 200ms var(--ease)}
.link-text:hover i{transform:translateX(3px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:600;color:var(--c-brand);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:8px;height:8px;background:var(--c-accent);border-radius:2px;display:block}
.section{padding:var(--section) 0}
.section-alt{background:var(--c-surface-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-head .section-sub{font-size:16px;color:var(--c-muted);margin:14px 0 0;max-width:640px}
.section-head.with-link{align-items:center}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.brand-row{display:flex;align-items:center;gap:28px;height:64px;transition:height 220ms var(--ease)}
.site-header.is-stuck .brand-row{height:52px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;flex-shrink:0}
.brand-mark{width:8px;height:8px;background:var(--c-accent);border-radius:2px;display:block}
.brand-text{font-size:20px;font-weight:700;color:var(--c-brand);letter-spacing:-.01em}
.nav-channels{display:flex;align-items:center;gap:26px;margin-right:auto}
.nav-channels .nav-link{
  position:relative;font-size:15px;color:var(--c-muted);padding:8px 0;white-space:nowrap;
  transition:color 160ms var(--ease);
}
.nav-channels .nav-link:hover{color:var(--c-brand)}
.nav-channels .nav-link.active{color:var(--c-brand);font-weight:600}
.nav-channels .nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);
}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{
  display:flex;align-items:center;gap:8px;
  height:40px;width:40px;padding:0 11px;
  border:1.5px solid var(--c-line);border-radius:var(--r-s);
  background:var(--c-surface);
  transition:width 220ms var(--ease),border-color 160ms var(--ease);
  overflow:hidden;
}
.search-wrap.open{width:220px;border-color:var(--c-brand)}
.search-wrap i{font-size:14px;color:var(--c-muted);flex-shrink:0}
.search-wrap input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--c-text);font-family:inherit;
}
.search-wrap input::placeholder{color:var(--c-muted-2)}
.search-wrap:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(195,238,79,.55)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-s);
  border:1.5px solid var(--c-line);background:var(--c-surface);
  color:var(--c-brand);font-size:16px;cursor:pointer;
}
.nav-toggle:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.hot-row{border-top:1px solid var(--c-line);display:none}
.hot-inner{display:flex;align-items:center;gap:12px;height:40px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--c-muted-2);letter-spacing:.06em;flex-shrink:0}
.hot-pill{
  display:inline-flex;align-items:center;
  padding:4px 14px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:transparent;
  font-size:13px;color:var(--c-muted);white-space:nowrap;
  transition:background 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease);
}
.hot-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:var(--c-accent)}
.hot-pill.flag{border-color:var(--c-flag);color:var(--c-flag)}
.hot-pill.flag:hover{background:#FBEDE6;color:var(--c-flag)}
@media (min-width:992px){.hot-row{display:block}}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:var(--c-paper);z-index:1050;
  transform:translateX(100%);
  transition:transform 280ms var(--ease);
  box-shadow:var(--sh-3);
  padding:20px 22px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-s);border:1.5px solid var(--c-line);
  background:var(--c-surface);color:var(--c-brand);cursor:pointer;
}
.drawer a.drawer-link{
  display:flex;align-items:center;height:52px;padding:0 4px;
  font-size:16px;color:var(--c-text);border-bottom:1px solid var(--c-line);
}
.drawer a.drawer-link.active{color:var(--c-brand);font-weight:600}
.drawer-search{display:flex;align-items:center;gap:8px;margin:16px 0 12px;height:44px;padding:0 14px;border:1.5px solid var(--c-line);border-radius:var(--r-s);background:var(--c-surface)}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-family:inherit;font-size:14px;color:var(--c-text)}
.scrim{
  position:fixed;inset:0;background:rgba(8,32,26,.42);z-index:1040;
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),visibility 240ms var(--ease);
}
.scrim.open{opacity:1;visibility:visible}

@media (max-width:991px){
  .nav-channels{display:none}
  .nav-toggle{display:inline-flex}
  .nav-tools .btn-main{display:none}
  .search-wrap{display:none}
}

/* ---------- Hero ---------- */
.hero{
  padding:56px 0 96px;
  background:linear-gradient(180deg,#FAF8F3 0%,#F5F2E8 100%);
  border-bottom:1px solid var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero h1{font-size:52px;line-height:1.16;margin-bottom:20px}
.hero-sub{font-size:18px;color:var(--c-muted);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{display:flex;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line)}
.hero-stats li{flex:1;padding:0 22px;border-left:1px solid var(--c-line)}
.hero-stats li:first-child{border-left:0;padding-left:0}
.hero-stats strong{
  display:block;font-size:56px;line-height:1.05;font-weight:700;
  color:var(--c-brand);letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.hero-stats strong em{font-size:15px;font-style:normal;font-weight:600;color:var(--c-muted);margin-left:4px}
.hero-stats span{display:block;font-size:13px;color:var(--c-muted);margin-top:6px}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-l);
  border:2px solid var(--c-brand);box-shadow:var(--sh-2);
}
.level-card{
  position:absolute;right:-14px;bottom:-28px;
  width:236px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:18px;box-shadow:var(--sh-2);
}
.level-card .lv-title{font-size:14px;font-weight:600;color:var(--c-brand);margin-bottom:14px}
.lv-row{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:12px;color:var(--c-muted)}
.lv-row:last-child{margin-bottom:0}
.lv-row .lv-name{width:62px;flex-shrink:0}
.lv-track{flex:1;height:5px;border-radius:var(--r-pill);background:var(--c-surface-2);overflow:hidden}
.lv-fill{display:block;height:100%;border-radius:var(--r-pill);background:var(--c-accent)}
@media (max-width:1199px){
  .hero h1{font-size:44px}
}
@media (max-width:991px){
  .hero{padding:40px 0 72px}
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero h1{font-size:36px}
  .hero-sub{font-size:17px}
  .level-card{position:static;width:100%;margin-top:20px}
}
@media (max-width:575px){
  .hero h1{font-size:30px}
  .hero-stats{flex-wrap:wrap}
  .hero-stats li{flex:1 1 33%;padding:0 12px}
  .hero-stats strong{font-size:38px}
  .hero-actions .btn-main,.hero-actions .btn-line{flex:1 1 100%}
}

/* ---------- 准备清单 / 步骤 ---------- */
.prep-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.prep-lead h2{margin-bottom:18px}
.prep-lead p{color:var(--c-muted);font-size:16px}
.prep-list{border-top:1px solid var(--c-line)}
.prep-item{
  display:flex;gap:22px;padding:22px 0;border-bottom:1px solid var(--c-line);
  transition:padding-left 220ms var(--ease);
}
.prep-item:hover{padding-left:10px}
.prep-num{
  font-size:20px;font-weight:700;color:var(--c-muted-2);
  font-variant-numeric:tabular-nums;line-height:1.4;width:36px;flex-shrink:0;
}
.prep-item:hover .prep-num{color:var(--c-brand)}
.prep-body h3{font-size:18px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.prep-body p{font-size:15px;color:var(--c-muted);margin:0}
.prep-tags{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--r-pill);
  font-size:12px;border:1px solid var(--c-line);color:var(--c-muted);background:var(--c-surface);
}
.tag.accent{background:var(--c-accent-soft);border-color:var(--c-accent-soft);color:var(--c-brand)}
@media (max-width:991px){
  .prep-grid{grid-template-columns:1fr;gap:36px}
}

/* ---------- 权益对比表 ---------- */
.table-scroll{
  position:relative;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--c-line);border-radius:var(--r-m);background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.plan-table{width:100%;border-collapse:collapse;min-width:680px}
.plan-table th,.plan-table td{
  padding:0 20px;height:56px;text-align:center;font-size:15px;font-weight:400;
  border-bottom:1px solid var(--c-line);color:var(--c-text);
}
.plan-table thead th{
  height:70px;font-size:18px;font-weight:600;color:var(--c-brand);
  background:var(--c-surface-2);border-bottom:1px solid var(--c-line);
}
.plan-table tbody th{
  text-align:left;font-weight:500;position:sticky;left:0;z-index:2;
  background:var(--c-surface);min-width:150px;border-right:1px solid var(--c-line);
}
.plan-table thead th:first-child{
  text-align:left;position:sticky;left:0;z-index:3;background:var(--c-surface-2);
  border-right:1px solid var(--c-line);
}
.plan-table .col-rec{background:var(--c-accent-soft);position:relative}
.plan-table thead .col-rec{box-shadow:inset 0 2px 0 var(--c-accent)}
.plan-table tbody tr:hover th,.plan-table tbody tr:hover td{background:#FCFBF7}
.plan-table tbody tr:hover .col-rec{background:#E4F5BC}
.plan-table tbody tr:last-child th,.plan-table tbody tr:last-child td{border-bottom:0}
.rec-badge{
  display:inline-block;margin-left:8px;padding:1px 8px;border-radius:var(--r-pill);
  border:1px solid var(--c-flag);color:var(--c-flag);font-size:12px;font-weight:600;
  vertical-align:middle;
}
.table-foot{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:24px;flex-wrap:wrap}
.yes{color:var(--c-brand-2);font-weight:600}
.no{color:var(--c-muted-2)}
@media (max-width:767px){
  .plan-table th,.plan-table td{padding:0 14px;min-width:120px}
  .table-foot .btn-main{width:100%}
}

/* ---------- 等级亮点 ---------- */
.level-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.level-rail{border-left:1px solid var(--c-line);padding-left:0}
.level-rail li{
  position:relative;display:flex;align-items:center;gap:16px;
  padding:20px 0 20px 22px;border-left:4px solid transparent;
  transition:border-color 220ms var(--ease),background 220ms var(--ease);
}
.level-rail li.active{border-left-color:var(--c-accent)}
.level-rail .lv-index{
  font-size:48px;font-weight:700;line-height:1;color:var(--c-muted-2);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.level-rail li.active .lv-index{color:var(--c-brand)}
.level-rail .lv-name{font-size:16px;font-weight:600;color:var(--c-muted)}
.level-rail li.active .lv-name{color:var(--c-brand)}
.level-bars{border-top:1px solid var(--c-line)}
.level-bar{
  padding:24px 0;border-bottom:1px solid var(--c-line);
  display:flex;gap:24px;align-items:flex-start;
  transition:padding-left 220ms var(--ease);
}
.level-bar:hover{padding-left:10px}
.level-bar .lb-head{width:120px;flex-shrink:0;font-size:18px;font-weight:600;color:var(--c-brand)}
.level-bar .lb-desc{font-size:15px;color:var(--c-muted);margin:0 0 10px}
@media (max-width:991px){
  .level-grid{grid-template-columns:1fr;gap:28px}
  .level-rail{display:flex;border-left:0;gap:8px;overflow-x:auto}
  .level-rail li{flex-direction:column;align-items:flex-start;gap:4px;padding:12px 14px;border-left:0;border-bottom:3px solid transparent;flex:0 0 auto}
  .level-rail li.active{border-bottom-color:var(--c-accent)}
  .level-rail .lv-index{font-size:30px}
  .level-bar{flex-direction:column;gap:8px}
}

/* ---------- 内容卡轨 ---------- */
.rail-wrap{position:relative}
.rail{
  display:flex;gap:24px;overflow-x:auto;padding-bottom:16px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 320px;scroll-snap-align:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  overflow:hidden;transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.rail-card:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.rail-thumb{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--c-surface-2)}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rail-card:hover .rail-thumb img{transform:scale(1.04)}
.rail-badge{
  position:absolute;left:14px;top:14px;
  padding:2px 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-flag);color:var(--c-flag);
  background:rgba(255,255,255,.94);font-size:12px;font-weight:600;
}
.rail-body{padding:20px}
.rail-body h3{font-size:17px;font-weight:600;color:var(--c-text);line-height:1.5;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-card:hover h3{color:var(--c-brand)}
.rail-body p{font-size:14px;color:var(--c-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--c-muted-2)}
.rail-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-muted-2)}
.rail-arrow{margin-left:auto;color:var(--c-brand);transition:transform 200ms var(--ease)}
.rail-card:hover .rail-arrow{transform:translateX(3px)}
@media (max-width:575px){
  .rail-card{flex:0 0 82%}
}

/* ---------- 最新信息（CMS 区） ---------- */
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.news-lead{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-m);overflow:hidden;
  transition:transform 220ms var(--ease),border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.news-lead:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.news-lead-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.news-lead-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.news-lead:hover .news-lead-thumb img{transform:scale(1.04)}
.news-lead-body{padding:24px}
.news-lead-body h3{
  font-size:24px;font-weight:700;color:var(--c-brand);line-height:1.4;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-lead-body p{font-size:15px;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badge-cat{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-flag);color:var(--c-flag);font-size:12px;font-weight:600;
}
.meta-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-muted-2);margin-top:16px}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--c-muted-2)}
.news-side{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:8px 24px}
.news-item{display:block;padding:20px 0;border-bottom:1px solid var(--c-line);transition:padding-left 220ms var(--ease)}
.news-item:last-child{border-bottom:0}
.news-item:hover{padding-left:6px}
.news-item h4{
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.55;margin:8px 0 6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover h4{color:var(--c-brand)}
.news-item p{font-size:14px;color:var(--c-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-item .meta-row{margin-top:10px}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-m);
  padding:48px 24px;text-align:center;color:var(--c-muted);
  background:var(--c-surface);font-size:15px;
}
@media (max-width:991px){
  .news-grid{grid-template-columns:1fr;gap:24px}
}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{border-top:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:1px solid var(--c-line)}
.faq-q{
  display:flex;align-items:center;gap:16px;width:100%;
  background:none;border:0;padding:0;height:64px;
  text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  cursor:pointer;font-family:inherit;
  transition:color 160ms var(--ease);
}
.faq-q:hover{color:var(--c-brand)}
.faq-q:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.faq-q .q-mark{width:24px;flex-shrink:0;color:var(--c-muted-2);font-weight:700}
.faq-q .q-icon{margin-left:auto;color:var(--c-brand);font-size:14px;transition:transform 220ms var(--ease)}
.faq-item.open .faq-q{color:var(--c-brand)}
.faq-item.open .q-icon{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms var(--ease)}
.faq-a-inner{padding:0 0 24px 40px;font-size:16px;color:var(--c-muted);border-left:0;position:relative}
.faq-item.open .faq-a-inner::before{
  content:"";position:absolute;left:0;top:2px;bottom:24px;width:3px;background:var(--c-accent);
}
@media (max-width:575px){
  .faq-q{height:56px;font-size:16px}
  .faq-a-inner{padding-left:30px}
}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:var(--c-deep);color:var(--c-paper);
  padding:72px 0;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(250,248,243,.05) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:center;position:relative}
.cta-band h2{color:var(--c-paper);margin-bottom:14px}
.cta-band p{color:rgba(250,248,243,.72);font-size:16px;margin:0;max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
@media (max-width:991px){
  .cta-band{padding:48px 0}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn-main,.cta-actions .btn-line{flex:1 1 100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-paper);padding-top:64px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .brand-text{color:var(--c-paper)}
.footer-brand p{font-size:14px;color:rgba(250,248,243,.62);margin:16px 0 0;max-width:300px;line-height:1.8}
.footer-contact{font-size:14px;color:rgba(250,248,243,.72);margin-top:16px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--c-paper);margin-bottom:16px}
.footer-col a{
  display:block;font-size:14px;color:rgba(250,248,243,.66);padding:6px 0;
  transition:color 160ms var(--ease),transform 160ms var(--ease);
}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 28px;font-size:13px;color:rgba(250,248,243,.55);
}
.to-top{
  width:36px;height:36px;border-radius:50%;
  border:1px solid rgba(250,248,243,.35);background:transparent;
  color:var(--c-paper);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.to-top:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 320ms var(--ease),transform 320ms var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
@media (max-width:991px){:root{--section:72px}}
@media (max-width:575px){:root{--section:56px}h1{font-size:30px}h2{font-size:24px}h3{font-size:19px}body{font-size:16px}}

/* roulang page: category1 */
:root{
  --c-ink:#0E1512;
  --c-brand:#12362A;
  --c-brand-2:#1B5540;
  --c-deep:#08201A;
  --c-accent:#C3EE4F;
  --c-accent-soft:#EAF9C9;
  --c-flag:#D8622F;
  --c-paper:#FAF8F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFE6;
  --c-line:#E4E0D4;
  --c-text:#151B18;
  --c-muted:#5C6660;
  --c-muted-2:#8A938E;
  --r-xs:6px;--r-s:10px;--r-m:14px;--r-l:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(14,21,18,.05);
  --sh-2:0 10px 30px -18px rgba(14,21,18,.35);
  --sh-3:0 24px 60px -32px rgba(14,21,18,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t1:160ms;--t2:220ms;--t3:320ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--c-paper);color:var(--c-text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--t1) var(--ease)}
button{font-family:inherit}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.3em}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.01em;color:var(--c-ink)}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px}
@media(min-width:1400px){.container{max-width:1280px}}
@media(max-width:767px){.container{padding:0 18px}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.brand-row{display:flex;align-items:center;gap:28px;height:64px;transition:height var(--t2) var(--ease)}
.site-header.scrolled .brand-row{height:52px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--c-brand);white-space:nowrap;letter-spacing:-.01em}
.brand-mark{width:8px;height:8px;border-radius:2px;background:var(--c-accent);box-shadow:0 0 0 3px rgba(195,238,79,.22);flex:0 0 8px}
.brand:hover .brand-text{color:var(--c-brand-2)}
.nav-channels{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-link{position:relative;font-size:15px;color:var(--c-muted);padding:8px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--t2) var(--ease)}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{display:flex;align-items:center;gap:8px;height:40px;padding:0 13px;border:1px solid var(--c-line);border-radius:var(--r-s);background:var(--c-surface);transition:border-color var(--t1) var(--ease),box-shadow var(--t1) var(--ease)}
.search-wrap i{font-size:13px;color:var(--c-muted-2)}
.search-wrap input{width:160px;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-text)}
.search-wrap input::placeholder{color:var(--c-muted-2)}
.search-wrap:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(195,238,79,.42)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border:0;border-radius:var(--r-s);cursor:pointer;
  background:var(--c-accent);color:var(--c-ink);font-size:16px;font-weight:600;
  transition:background var(--t1) var(--ease),transform var(--t1) var(--ease),box-shadow var(--t1) var(--ease);
}
.btn-main:hover{background:#B4E339;transform:translateY(-1px);box-shadow:var(--sh-2);color:var(--c-ink)}
.btn-main:active{transform:none;box-shadow:none}
.btn-main:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-s);background:transparent;
  border:1.5px solid var(--c-brand);color:var(--c-brand);font-size:16px;font-weight:600;cursor:pointer;
  transition:background var(--t1) var(--ease),color var(--t1) var(--ease),transform var(--t1) var(--ease);
}
.btn-line:hover{background:var(--c-brand);color:var(--c-paper);transform:translateY(-1px)}
.btn-line:active{transform:none}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-s);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-brand);font-size:16px;cursor:pointer;align-items:center;justify-content:center}
.hot-row{border-top:1px solid var(--c-line);background:var(--c-paper)}
.hot-inner{display:flex;align-items:center;gap:10px;height:40px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;letter-spacing:.08em;color:var(--c-muted-2);flex:0 0 auto}
.hot-pill{flex:0 0 auto;font-size:13px;color:var(--c-muted);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:3px 12px;white-space:nowrap;transition:background var(--t1) var(--ease),color var(--t1) var(--ease),border-color var(--t1) var(--ease)}
.hot-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:rgba(18,54,42,.22)}
.hot-pill.flag{border-color:var(--c-flag);color:var(--c-flag)}

/* ============ breadcrumb ============ */
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-muted-2);padding:26px 0 0}
.crumbs .sq{width:12px;height:12px;border-radius:3px;background:var(--c-accent);flex:0 0 12px}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-brand)}
.crumbs .sep{color:#C9C4B6}
.crumbs .cur{color:var(--c-brand);font-weight:600}

/* ============ page head ============ */
.page-head{padding:22px 0 34px;max-width:860px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;color:var(--c-brand);font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--c-accent)}
.page-head h1{font-size:48px;font-weight:700;line-height:1.18;letter-spacing:-.01em;margin-bottom:16px}
.page-head .lead{font-size:18px;color:var(--c-muted);max-width:720px;margin:0}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{font-size:12px;padding:4px 11px;border-radius:var(--r-pill);background:var(--c-accent-soft);color:var(--c-brand-2);border:1px solid rgba(18,54,42,.12)}
.tag.plain{background:var(--c-surface);border-color:var(--c-line);color:var(--c-muted)}
.tag.warm{background:transparent;border-color:var(--c-flag);color:var(--c-flag)}

/* ============ guide ============ */
.section{padding:70px 0}
.section-tight{padding:40px 0 60px}
.sec-head{margin-bottom:28px;max-width:760px}
.sec-head h2{font-size:34px;font-weight:700;margin-bottom:10px}
.sec-head p{color:var(--c-muted);font-size:16px;margin:0}
.guide-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start}
.guide-visual{position:relative}
.guide-frame{position:relative;aspect-ratio:4/3;border-radius:var(--r-l);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface-2);box-shadow:var(--sh-2)}
.guide-frame img{width:100%;height:100%;object-fit:cover;transition:transform var(--t3) var(--ease)}
.guide-frame:hover img{transform:scale(1.02)}
.guide-badge{
  position:absolute;right:18px;bottom:-26px;width:230px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);padding:16px 18px;box-shadow:var(--sh-3);
}
.guide-badge .badge-title{font-size:13px;font-weight:700;color:var(--c-brand);margin-bottom:10px}
.bar-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.bar-row:last-child{margin-bottom:0}
.bar-row span{font-size:12px;color:var(--c-muted);flex:0 0 74px}
.bar{flex:1;height:5px;border-radius:var(--r-pill);background:var(--c-surface-2);overflow:hidden}
.bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--c-accent)}
.caption{font-size:13px;color:var(--c-muted-2);margin:40px 0 0}
.guide-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-line)}
.guide-item{
  position:relative;display:grid;grid-template-columns:46px 1fr 22px;gap:14px;
  padding:19px 0 19px 0;border-bottom:1px solid var(--c-line);
  transition:background var(--t1) var(--ease);
}
.guide-item::before{
  content:"";position:absolute;left:-14px;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--c-accent);transform:scaleY(0);transform-origin:top;
  transition:transform var(--t2) var(--ease);
}
.guide-item:hover::before{transform:scaleY(1)}
.guide-num{font-size:14px;font-weight:700;color:var(--c-muted-2);letter-spacing:.06em;padding-top:3px}
.guide-title{display:block;font-size:18px;font-weight:600;color:var(--c-ink);margin-bottom:3px;transition:color var(--t1) var(--ease)}
.guide-desc{display:block;font-size:14px;color:var(--c-muted);margin-bottom:6px}
.guide-meta{display:block;font-size:13px;color:var(--c-muted-2)}
.guide-arrow{align-self:center;color:var(--c-muted-2);font-size:13px;transition:transform var(--t2) var(--ease),color var(--t1) var(--ease)}
.guide-item:hover .guide-arrow{transform:translateX(3px);color:var(--c-brand)}
.guide-item:hover .guide-title{color:var(--c-brand)}

/* ============ split ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:52px;align-items:start}
.split-main h2{font-size:34px;font-weight:700;margin-bottom:12px}
.split-main h3{font-size:24px;font-weight:700;color:var(--c-brand);margin:38px 0 14px}
.split-main .intro{color:var(--c-muted);font-size:16px;margin-bottom:24px}
.steps{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-line)}
.step{display:grid;grid-template-columns:44px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.step-idx{width:36px;height:36px;border-radius:var(--r-s);background:var(--c-accent-soft);color:var(--c-brand);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(18,54,42,.12)}
.step h4{font-size:18px;font-weight:600;margin-bottom:4px}
.step p{margin:0;font-size:15px;color:var(--c-muted)}
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:22px}
.mini-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:20px;transition:transform var(--t2) var(--ease),border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease)}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.mini-card.wide{grid-column:1 / -1}
.mini-card h4{font-size:17px;font-weight:600;margin-bottom:6px}
.mini-card p{margin:0;font-size:14px;color:var(--c-muted)}
.mini-icon{width:34px;height:34px;border-radius:var(--r-s);background:var(--c-surface-2);color:var(--c-brand);display:flex;align-items:center;justify-content:center;font-size:14px;margin-bottom:12px}

/* ============ faq ============ */
.faq{margin-top:18px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;min-height:64px;padding:14px 0;
  background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--c-ink);cursor:pointer;
  transition:color var(--t1) var(--ease);
}
.faq-q .q-mark{flex:0 0 22px;font-size:14px;font-weight:700;color:var(--c-muted-2)}
.faq-q .ind{margin-left:auto;flex:0 0 auto;width:22px;height:22px;display:flex;align-items:center;justify-content:center;color:var(--c-muted-2);font-size:13px;transition:transform var(--t2) var(--ease),color var(--t1) var(--ease)}
.faq-q:hover{color:var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t2) var(--ease)}
.faq-a p{margin:0 0 20px 36px;font-size:16px;line-height:1.8;color:var(--c-muted)}
.faq-item.open .faq-q{color:var(--c-brand)}
.faq-item.open .faq-q .ind{transform:rotate(45deg);color:var(--c-brand)}
.faq-item.open .faq-a{max-height:320px}

/* ============ aside ============ */
.aside{position:sticky;top:96px}
.aside-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px;padding:22px;margin-bottom:18px;box-shadow:var(--sh-1)}
.aside-card h3{font-size:16px;font-weight:700;color:var(--c-brand);margin-bottom:8px}
.aside-card .aside-sub{font-size:13px;color:var(--c-muted-2);margin:0 0 14px}
.cat-list{list-style:none;margin:0;padding:0}
.cat-list li{border-bottom:1px solid var(--c-line)}
.cat-list li:last-child{border-bottom:0}
.cat-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;font-size:15px;color:var(--c-muted)}
.cat-list a:hover{color:var(--c-brand);padding-left:4px}
.cat-list a i{font-size:11px;color:var(--c-muted-2)}
.aside-faq{list-style:none;margin:0;padding:0}
.aside-faq li{padding:12px 0;border-bottom:1px solid var(--c-line)}
.aside-faq li:last-child{border-bottom:0;padding-bottom:0}
.aside-faq strong{display:block;font-size:15px;font-weight:600;color:var(--c-ink);margin-bottom:4px}
.aside-faq span{font-size:14px;color:var(--c-muted);line-height:1.7;display:block}
.aside-note{background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:16px;padding:20px;font-size:14px;color:var(--c-muted)}
.aside-note strong{display:block;color:var(--c-brand);font-size:15px;margin-bottom:6px}

/* ============ dark cta ============ */
.dark-cta{position:relative;overflow:hidden;background:var(--c-deep);padding:72px 0;margin-top:90px}
.dark-cta::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.035) 0 2px,transparent 2px 14px);
  pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:center}
.dark-cta h2{color:var(--c-paper);font-size:34px;font-weight:700;margin-bottom:12px}
.dark-cta p{color:rgba(250,248,243,.72);font-size:16px;margin:0;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.btn-deep-line{display:inline-flex;align-items:center;justify-content:center;padding:13px 24px;border-radius:var(--r-s);border:1px solid rgba(250,248,243,.42);color:var(--c-paper);background:transparent;font-size:16px;font-weight:600;transition:background var(--t1) var(--ease),border-color var(--t1) var(--ease)}
.btn-deep-line:hover{background:rgba(250,248,243,.1);border-color:var(--c-paper);color:var(--c-paper)}

/* ============ footer ============ */
.site-footer{background:var(--c-ink);color:var(--c-paper);border-top:1px solid rgba(255,255,255,.12);padding-top:64px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.site-footer .brand{color:var(--c-paper);font-size:18px}
.site-footer .brand:hover .brand-text{color:var(--c-accent)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(250,248,243,.66);margin:16px 0 0;max-width:330px}
.footer-contact{color:rgba(250,248,243,.5)!important;font-size:13px!important}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-paper);margin-bottom:14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:rgba(250,248,243,.66);padding:5px 0;transition:color var(--t1) var(--ease),transform var(--t1) var(--ease)}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(250,248,243,.5);flex-wrap:wrap}
.to-top{width:36px;height:36px;border-radius:50%;border:1px solid rgba(250,248,243,.32);background:transparent;color:var(--c-paper);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:background var(--t1) var(--ease),color var(--t1) var(--ease)}
.to-top:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 320ms var(--ease),transform 320ms var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============ responsive ============ */
@media(max-width:1199px){
  .search-wrap input{width:120px}
  .nav-channels{gap:20px}
  .split{grid-template-columns:minmax(0,1fr) 300px;gap:36px}
}
@media(max-width:991px){
  .nav-channels{
    position:fixed;top:0;right:0;height:100vh;width:290px;background:var(--c-surface);
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:84px 22px 26px;
    transform:translateX(100%);transition:transform var(--t3) var(--ease);
    box-shadow:-24px 0 48px -32px rgba(8,32,26,.6);z-index:1040;
  }
  .nav-channels.open{transform:translateX(0)}
  .nav-link{height:52px;display:flex;align-items:center;border-bottom:1px solid var(--c-line);padding:0;font-size:16px}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--c-brand);font-weight:700}
  .nav-toggle{display:inline-flex}
  .search-wrap{display:none}
  .brand-row{gap:14px}
  .nav-tools{margin-left:auto}
  .guide-grid{grid-template-columns:1fr;gap:34px}
  .guide-badge{position:static;width:100%;margin-top:16px}
  .caption{margin-top:14px}
  .split{grid-template-columns:1fr;gap:34px}
  .aside{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .aside-card,.aside-note{margin-bottom:0}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn-main,.btn-deep-line{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-head h1{font-size:36px}
  .section{padding:56px 0}
  .dark-cta{padding:56px 0;margin-top:64px}
}
@media(max-width:767px){
  body{font-size:16px}
  .page-head{padding:18px 0 26px}
  .page-head h1{font-size:30px;line-height:1.24}
  .page-head .lead{font-size:16px}
  .sec-head h2,.split-main h2{font-size:24px}
  .dark-cta h2{font-size:24px}
  .section{padding:48px 0}
  .guide-item{grid-template-columns:38px 1fr 18px;gap:10px}
  .guide-title{font-size:17px}
  .scene-grid{grid-template-columns:1fr}
  .mini-card.wide{grid-column:auto}
  .aside{grid-template-columns:1fr}
  .faq-q{min-height:56px;font-size:16px}
  .faq-a p{margin-left:0}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-brand p{max-width:none}
  .cta-actions{flex-direction:column}
  .split-main h3{font-size:19px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --c-ink:#0E1512;
  --c-brand:#12362A;
  --c-brand-2:#1B5540;
  --c-deep:#08201A;
  --c-accent:#C3EE4F;
  --c-accent-soft:#EAF9C9;
  --c-flag:#D8622F;
  --c-paper:#FAF8F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFE6;
  --c-line:#E4E0D4;
  --c-text:#151B18;
  --c-muted:#5C6660;
  --c-muted-2:#8A938E;
  --r-xs:6px;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,21,18,.05);
  --sh-2:0 10px 30px -18px rgba(14,21,18,.35);
  --sh-3:0 24px 60px -32px rgba(14,21,18,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --maxw:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  background:var(--c-paper);
  color:var(--c-text);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--c-accent-soft);color:var(--c-ink)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1280px}}
@media (max-width:767px){.container{padding:0 18px}}

/* 阅读进度 */
.read-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:1040;background:rgba(18,54,42,.08);pointer-events:none}
.read-progress span{display:block;height:100%;width:100%;background:var(--c-accent);transform:scaleX(0);transform-origin:left center;transition:transform .1s linear}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-paper);border-bottom:1px solid transparent;transition:box-shadow .22s var(--ease),border-color .22s var(--ease)}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:var(--sh-1)}
.brand-row{display:flex;align-items:center;gap:28px;height:64px;transition:height .22s var(--ease)}
.site-header.scrolled .brand-row{height:52px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--c-brand);font-size:19px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:8px;height:8px;background:var(--c-accent);border-radius:2px;flex:0 0 auto}
.nav-channels{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{position:relative;font-size:15px;color:var(--c-muted);padding:6px 0;white-space:nowrap;transition:color .16s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left center;transition:transform .18s var(--ease)}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-wrap{display:flex;align-items:center;gap:8px;height:40px;width:220px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-s);background:var(--c-surface);color:var(--c-muted-2);transition:border-color .16s var(--ease),box-shadow .16s var(--ease)}
.search-wrap input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--c-text)}
.search-wrap input::placeholder{color:var(--c-muted-2)}
.search-wrap:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 2px var(--c-accent)}
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--c-accent);color:var(--c-ink);font-weight:600;font-size:16px;padding:14px 26px;border:0;border-radius:var(--r-s);cursor:pointer;transition:background .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease)}
.btn-main:hover{background:#B4E339;color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:none;box-shadow:none}
.btn-main:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn-sm{padding:10px 18px;font-size:14px}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-s);background:var(--c-surface);color:var(--c-brand);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle:hover{border-color:var(--c-brand)}
.hot-row{border-top:1px solid var(--c-line)}
.hot-inner{display:flex;align-items:center;gap:10px;height:40px;overflow-x:auto;scrollbar-width:none}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;letter-spacing:.08em;color:var(--c-muted-2);flex:0 0 auto}
.hot-pill{flex:0 0 auto;font-size:13px;color:var(--c-muted);padding:3px 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);white-space:nowrap;transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease)}
.hot-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:var(--c-accent)}
.hot-pill.flag{border-color:var(--c-flag);color:var(--c-flag)}
.hot-pill.flag:hover{background:#FBEDE5;border-color:var(--c-flag);color:var(--c-flag)}
.nav-mask{position:fixed;inset:0;background:rgba(14,21,18,.42);opacity:0;pointer-events:none;transition:opacity .22s var(--ease);z-index:1035}
.nav-mask.show{opacity:1;pointer-events:auto}

/* 面包屑 */
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted-2);padding-top:26px}
.breadcrumb-line .crumb-dot{width:12px;height:12px;background:var(--c-accent);border-radius:2px;display:inline-block;margin-right:2px}
.breadcrumb-line .sep{color:var(--c-line)}
.breadcrumb-line a{transition:color .16s var(--ease)}
.breadcrumb-line a:hover{color:var(--c-brand)}
.breadcrumb-line .current{color:var(--c-brand);font-weight:600}

/* 文章主体布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:0;padding:26px 0 80px}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,760px) 260px;gap:56px;justify-content:space-between}
}
.article-main{min-width:0}
.article-title{font-size:48px;line-height:1.18;color:var(--c-ink);margin:14px 0 18px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;font-size:14px;color:var(--c-muted);padding-bottom:22px;border-bottom:1px solid var(--c-line)}
.meta-tag{display:inline-flex;align-items:center;border:1px solid var(--c-flag);color:var(--c-flag);border-radius:var(--r-pill);font-size:12px;padding:2px 10px;line-height:1.6}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--c-muted-2);display:inline-block}
.article-cover{margin:26px 0 0;border-radius:var(--r-m);overflow:hidden;aspect-ratio:16/9;background:var(--c-surface-2);border:1px solid var(--c-line)}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);padding-top:28px}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:34px;line-height:1.25;margin:48px 0 16px;padding-left:20px;color:var(--c-ink)}
.article-body h2::before{content:"";position:absolute;left:0;top:9px;width:4px;height:26px;border-radius:2px;background:var(--c-accent)}
.article-body h3{font-size:24px;line-height:1.32;margin:34px 0 12px;color:var(--c-brand)}
.article-body h4{font-size:18px;line-height:1.4;margin:24px 0 10px;color:var(--c-ink)}
.article-body a{color:var(--c-brand);text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:3px;transition:color .16s var(--ease)}
.article-body a:hover{color:var(--c-brand-2)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul li{list-style:disc;margin:.4em 0}
.article-body ol li{list-style:decimal;margin:.4em 0}
.article-body blockquote{margin:24px 0;padding:20px 24px;background:var(--c-surface-2);border-left:3px solid var(--c-accent);border-radius:0 var(--r-s) var(--r-s) 0;color:var(--c-muted)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-s);margin:24px 0;width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted-2);margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left}
.article-body th{background:var(--c-surface-2);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0}
.empty-state{border:1px dashed var(--c-line);border-radius:var(--r-m);padding:48px 24px;text-align:center;background:var(--c-surface);color:var(--c-muted);margin-top:32px}
.empty-state strong{display:block;font-size:18px;color:var(--c-ink);margin-bottom:10px}
.empty-state a{display:inline-flex;margin-top:18px;border:1.5px solid var(--c-brand);color:var(--c-brand);font-weight:600;border-radius:var(--r-s);padding:11px 22px;font-size:15px;transition:background .16s var(--ease),color .16s var(--ease)}
.empty-state a:hover{background:var(--c-brand);color:var(--c-paper)}

/* 标签 */
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--c-line)}
.post-tags .tag-label{font-size:13px;color:var(--c-muted-2);align-self:center;margin-right:4px}
.tag-pill{font-size:13px;padding:6px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);color:var(--c-muted);background:var(--c-surface);transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease)}
.tag-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:var(--c-accent)}

/* 延伸阅读 */
.related-block{margin-top:48px}
.related-title{font-size:20px;color:var(--c-ink);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.related-title::before{content:"";width:14px;height:2px;background:var(--c-accent)}
.related-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.related-item{display:flex;gap:14px;padding:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease)}
.related-item:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.related-item img{width:96px;height:72px;object-fit:cover;border-radius:var(--r-xs);flex:0 0 auto;background:var(--c-surface-2)}
.related-item h4{font-size:16px;line-height:1.4;margin-bottom:6px;color:var(--c-ink);transition:color .16s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-item p{font-size:13px;line-height:1.6;color:var(--c-muted-2);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.related-item:hover h4{color:var(--c-brand)}

/* 返回按钮 */
.back-row{margin-top:36px}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;border:1.5px solid var(--c-brand);color:var(--c-brand);background:transparent;border-radius:var(--r-s);padding:12px 24px;font-size:15px;font-weight:600;transition:background .16s var(--ease),color .16s var(--ease),transform .16s var(--ease)}
.btn-ghost:hover{background:var(--c-brand);color:var(--c-paper);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}

/* 侧栏 */
.article-side{display:none}
@media (min-width:1200px){
  .article-side{display:flex;flex-direction:column;gap:16px;align-self:start;position:sticky;top:88px}
}
.toc-card,.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:20px}
.toc-card h3,.side-card h3{font-size:15px;color:var(--c-ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.toc-card h3::before,.side-card h3::before{content:"";width:14px;height:2px;background:var(--c-accent)}
.toc-list{display:flex;flex-direction:column;max-height:52vh;overflow:auto;scrollbar-width:thin}
.toc-link{font-size:13.5px;line-height:1.55;color:var(--c-muted);padding:7px 0 7px 12px;border-left:2px solid transparent;transition:color .16s var(--ease),border-color .16s var(--ease)}
.toc-link.lvl-3{padding-left:24px;font-size:13px;color:var(--c-muted-2)}
.toc-link:hover{color:var(--c-brand)}
.toc-link.active{color:var(--c-brand);border-left-color:var(--c-accent);font-weight:600}
.side-links{display:flex;flex-direction:column}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;color:var(--c-muted);padding:9px 0;border-bottom:1px solid var(--c-line);transition:color .16s var(--ease),padding-left .16s var(--ease)}
.side-links a:last-child{border-bottom:0}
.side-links a i{font-size:11px;color:var(--c-muted-2)}
.side-links a:hover{color:var(--c-brand);padding-left:4px}
.side-note{font-size:13px;line-height:1.7;color:var(--c-muted-2);margin-top:12px}

/* 深色 CTA */
.cta-dark{background:var(--c-deep);color:var(--c-paper);padding:72px 0;position:relative;overflow:hidden}
.cta-dark::after{content:"云开";position:absolute;right:-10px;bottom:-56px;font-size:180px;font-weight:700;line-height:1;color:#FFFFFF;opacity:.05;pointer-events:none;letter-spacing:-.04em}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.7fr 1fr;gap:40px;align-items:center}
.cta-dark h2{font-size:34px;line-height:1.25;color:var(--c-paper);margin-bottom:12px}
.cta-dark p{font-size:16px;line-height:1.8;color:rgba(250,248,243,.72);max-width:620px}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.btn-outline-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid rgba(250,248,243,.42);color:var(--c-paper);background:transparent;border-radius:var(--r-s);padding:14px 26px;font-size:15px;font-weight:600;transition:border-color .16s var(--ease),color .16s var(--ease),background .16s var(--ease)}
.btn-outline-light:hover{border-color:var(--c-accent);color:var(--c-accent);background:rgba(195,238,79,.06)}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(250,248,243,.72);padding-top:64px;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{color:var(--c-paper)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;max-width:340px}
.footer-brand .footer-contact{font-size:13px;color:rgba(250,248,243,.55)}
.footer-col h4{font-size:15px;color:var(--c-paper);margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:14px;padding:6px 0;color:rgba(250,248,243,.7);transition:color .16s var(--ease),transform .16s var(--ease)}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(250,248,243,.55)}
.to-top{width:36px;height:36px;border-radius:50%;border:1px solid rgba(250,248,243,.28);background:transparent;color:var(--c-paper);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease)}
.to-top:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* 响应式 */
@media (max-width:1199px){
  .article-title{font-size:38px}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex}
  .nav-channels{
    position:fixed;top:0;right:0;width:288px;height:100vh;
    background:var(--c-paper);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 22px 24px;margin-left:0;
    transform:translateX(100%);transition:transform .22s var(--ease);
    box-shadow:var(--sh-3);z-index:1045;overflow-y:auto;
  }
  .nav-channels.open{transform:translateX(0)}
  .nav-channels .nav-link{padding:16px 2px;border-bottom:1px solid var(--c-line);font-size:16px}
  .nav-channels .nav-link::after{display:none}
  .search-wrap{width:180px}
  .hot-row{display:none}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:16px}
  .brand{font-size:17px}
  .brand-row{gap:12px;height:60px}
  .search-wrap{display:none}
  .article-title{font-size:30px;line-height:1.24;margin:12px 0 16px}
  .meta-row{font-size:13px;padding-bottom:18px}
  .article-body{font-size:16px;line-height:1.85;padding-top:22px}
  .article-body h2{font-size:24px;margin:38px 0 14px;padding-left:16px}
  .article-body h2::before{top:6px;height:20px;width:3px}
  .article-body h3{font-size:19px;margin:28px 0 10px}
  .article-body h4{font-size:17px}
  .related-list{grid-template-columns:minmax(0,1fr)}
  .cta-dark{padding:48px 0}
  .cta-dark h2{font-size:24px}
  .cta-dark::after{font-size:110px;bottom:-30px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px}
  .footer-bottom{flex-wrap:wrap;font-size:12px}
  .btn-main,.btn-outline-light,.btn-ghost{width:100%;justify-content:center}
  .cta-actions{width:100%}
  .article-layout{padding-bottom:56px}
}
@media (max-width:575px){
  .article-cover{aspect-ratio:4/3;margin-top:20px}
  .related-item img{width:80px;height:64px}
}

/* roulang page: category2 */
:root{
  --c-ink:#0E1512;
  --c-brand:#12362A;
  --c-brand-2:#1B5540;
  --c-deep:#08201A;
  --c-accent:#C3EE4F;
  --c-accent-hover:#B4E339;
  --c-accent-soft:#EAF9C9;
  --c-flag:#D8622F;
  --c-paper:#FAF8F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFE6;
  --c-line:#E4E0D4;
  --c-text:#151B18;
  --c-muted:#5C6660;
  --c-muted-2:#8A938E;
  --r-xs:6px;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,21,18,.05);
  --sh-2:0 10px 30px -18px rgba(14,21,18,.35);
  --sh-3:0 24px 60px -32px rgba(14,21,18,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-body-bg:var(--c-paper);
  --bs-body-color:var(--c-text);
  --bs-link-color:var(--c-brand);
  --bs-link-hover-color:var(--c-brand-2);
  --bs-border-color:var(--c-line);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--c-paper);
  color:var(--c-text);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--c-brand-2)}
p{margin:0 0 1.1em}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);letter-spacing:-.01em;font-weight:700}
h1{font-size:48px;line-height:1.18}
h2{font-size:34px;line-height:1.25}
h3{font-size:24px;line-height:1.3;font-weight:600}
h4{font-size:18px;line-height:1.4;font-weight:600}
ul,ol{margin:0 0 1.1em;padding-left:1.4em}
li{margin-bottom:.4em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{
  max-width:1220px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:1400px){
  .container{max-width:1280px}
}
.row{--bs-gutter-x:24px;--bs-gutter-y:24px}

/* ---------- 按钮 ---------- */
.btn-main,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  padding:14px 26px;
  border-radius:var(--r-s);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .16s var(--ease),background-color .2s var(--ease),color .2s var(--ease),box-shadow .22s var(--ease),border-color .2s var(--ease);
}
.btn-main{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}
.btn-main:hover{background:var(--c-accent-hover);color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand);color:var(--c-paper)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--r-s)}
.btn-line-light{background:transparent;color:var(--c-paper);border-color:rgba(250,248,243,.5)}
.btn-line-light:hover{background:rgba(250,248,243,.1);color:var(--c-paper)}
.btn-ghost[disabled],.btn-main[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--c-line)}
.brand-row{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:64px;
  transition:min-height .22s var(--ease);
}
.site-header.is-scrolled .brand-row{min-height:52px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:var(--c-brand);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark{width:8px;height:8px;border-radius:2px;background:var(--c-accent);display:inline-block;flex:none}
.nav-channels{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;
  color:var(--c-muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--c-brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-wrap{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:var(--c-surface);
  color:var(--c-muted-2);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-wrap:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 2px var(--c-accent)}
.search-wrap i{font-size:13px}
.search-wrap input{
  border:0;
  outline:0;
  background:transparent;
  font-size:14px;
  width:170px;
  color:var(--c-text);
}
.search-wrap input::placeholder{color:var(--c-muted-2)}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:var(--c-surface);
  color:var(--c-brand);
  font-size:16px;
  cursor:pointer;
}
.hot-row{border-top:1px solid var(--c-line)}
.hot-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:40px;
  overflow-x:auto;
  scrollbar-width:none;
}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--c-muted-2);letter-spacing:.08em;flex:none}
.hot-pill{
  flex:none;
  font-size:12px;
  color:var(--c-muted);
  padding:4px 12px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.hot-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:var(--c-accent)}
.hot-pill.flag{border-color:var(--c-flag);color:var(--c-flag)}
.hot-pill.flag:hover{background:#FBEDE6;border-color:var(--c-flag);color:var(--c-flag)}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  font-size:13px;
  color:var(--c-muted-2);
  padding:26px 0 18px;
}
.breadcrumb-bar a{color:var(--c-muted-2)}
.breadcrumb-bar a:hover{color:var(--c-brand)}
.breadcrumb-bar .sep{color:var(--c-line)}
.breadcrumb-bar .current{color:var(--c-brand);font-weight:600}
.breadcrumb-bar .crumb-dot{width:12px;height:12px;border-radius:3px;background:var(--c-accent);display:inline-block;margin-right:10px;flex:none}

/* ---------- Hero ---------- */
.page-hero{padding-bottom:24px}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-brand);
  font-weight:600;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--c-accent);display:inline-block}
.page-hero h1{margin-bottom:18px;max-width:15em}
.lead-text{font-size:18px;line-height:1.8;color:var(--c-muted);max-width:34em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-stats{display:flex;align-items:stretch;gap:0;flex-wrap:wrap}
.stat{padding:0 28px;border-left:1px solid var(--c-line)}
.stat:first-child{padding-left:0;border-left:0}
.stat-num{display:block;font-size:38px;line-height:1.1;font-weight:700;color:var(--c-brand);letter-spacing:-.02em}
.stat-label{display:block;font-size:13px;color:var(--c-muted);margin-top:6px}
.hero-figure{
  position:relative;
  border-radius:var(--r-l);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  aspect-ratio:4/3;
  background:var(--c-surface-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:16px 20px;
  font-size:13px;
  color:#FAF8F3;
  background:linear-gradient(to top,rgba(8,32,26,.82),rgba(8,32,26,0));
}

/* ---------- 区块通用 ---------- */
.section{padding-top:72px}
.section-head{margin-bottom:34px}
.section-head h2{margin-bottom:10px}
.section-head .desc{font-size:15px;color:var(--c-muted);margin:0;max-width:46em}
.kicker{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-muted-2);
  margin-bottom:10px;
  text-transform:uppercase;
}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:34px;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:9px;top:10px;bottom:16px;
  width:1px;
  background:var(--c-line);
}
.tl-item{position:relative;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-item::before{
  content:"";
  position:absolute;
  left:-30px;
  top:28px;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--c-surface);
  border:1.5px solid var(--c-brand);
  transition:background-color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-item.is-active::before{
  background:var(--c-accent);
  border-color:var(--c-accent);
  box-shadow:0 0 0 4px var(--c-accent-soft);
}
.tl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:22px 24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.tl-head{display:flex;align-items:baseline;gap:12px;margin-bottom:8px}
.tl-num{
  font-size:15px;
  font-weight:700;
  color:var(--c-muted-2);
  letter-spacing:.04em;
  flex:none;
}
.tl-item.is-active .tl-num{color:var(--c-brand)}
.tl-head h3{font-size:19px;margin:0}
.tl-card p{margin:0 0 12px;font-size:15px;line-height:1.8;color:var(--c-muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1.6;
  padding:2px 10px;
  border-radius:var(--r-pill);
  background:var(--c-accent-soft);
  color:var(--c-brand);
  border:1px solid transparent;
}
.tag.tag-line{background:transparent;border-color:var(--c-line);color:var(--c-muted)}
.tag.tag-flag{background:transparent;border-color:var(--c-flag);color:var(--c-flag)}
.tl-meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--c-muted-2);
  border-top:1px dashed var(--c-line);
  padding-top:12px;
}
.tl-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-muted-2);display:inline-block}

/* ---------- 验证方式对照表 ---------- */
.verify-wrap{
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--c-surface);
  margin-top:22px;
}
.verify-table{width:100%;border-collapse:collapse;font-size:15px}
.verify-table th,
.verify-table td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--c-line);
  vertical-align:top;
}
.verify-table thead th{
  font-size:13px;
  letter-spacing:.06em;
  color:var(--c-muted);
  font-weight:600;
  background:var(--c-surface-2);
}
.verify-table tbody tr:last-child td{border-bottom:0}
.verify-table tbody tr:hover{background:#FCFBF7}
.verify-table td:first-child{font-weight:600;color:var(--c-ink);white-space:nowrap}
.verify-table td{color:var(--c-muted);line-height:1.75}
.mobile-scroll{overflow-x:auto;border-radius:var(--r-m)}
.mobile-scroll .verify-table{min-width:560px}

/* ---------- 侧栏 ---------- */
.side-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:22px 22px 18px;
  margin-bottom:20px;
}
.side-panel h3{font-size:17px;margin-bottom:14px}
.side-nav{list-style:none;padding:0;margin:0}
.side-nav li{margin:0}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  font-size:15px;
  color:var(--c-muted);
  border-bottom:1px solid var(--c-line);
}
.side-nav li:last-child a{border-bottom:0}
.side-nav a:hover{color:var(--c-brand)}
.side-nav a i{font-size:11px;color:var(--c-muted-2);transition:transform .2s var(--ease),color .2s var(--ease)}
.side-nav a:hover i{transform:translateX(3px);color:var(--c-brand)}
.side-faq{
  border-top:1px solid var(--c-line);
  padding-top:14px;
  margin-top:4px;
}
.side-faq:first-of-type{border-top:0;padding-top:0;margin-top:0}
.side-faq h4{font-size:15px;margin-bottom:6px;color:var(--c-ink)}
.side-faq p{font-size:13px;line-height:1.75;color:var(--c-muted);margin:0}
.side-note{
  background:var(--c-accent-soft);
  border:1px solid var(--c-accent);
  border-radius:var(--r-m);
  padding:18px 20px;
  font-size:14px;
  line-height:1.8;
  color:var(--c-brand);
}
.side-note strong{display:block;margin-bottom:4px;color:var(--c-ink)}
.sticky-side{position:sticky;top:104px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--c-line);position:relative}
.faq-btn{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  min-height:64px;
  padding:12px 0 12px 0;
  background:transparent;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink);
  cursor:pointer;
  transition:color .2s var(--ease),padding-left .2s var(--ease);
}
.faq-btn .q-mark{
  flex:none;
  width:24px;
  font-size:15px;
  font-weight:700;
  color:var(--c-muted-2);
}
.faq-btn .chev{
  margin-left:auto;
  flex:none;
  font-size:13px;
  color:var(--c-muted-2);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.faq-item.open .faq-btn{color:var(--c-brand);padding-left:12px}
.faq-item.open .faq-btn .q-mark{color:var(--c-brand)}
.faq-item.open .faq-btn .chev{transform:rotate(90deg);color:var(--c-brand)}
.faq-item.open::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  background:var(--c-accent);
  border-radius:2px;
}
.faq-panel{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-panel-inner{
  padding:0 0 22px 40px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
  opacity:0;
  transform:translateY(-4px);
  transition:opacity .18s var(--ease),transform .18s var(--ease);
}
.faq-item.open .faq-panel-inner{opacity:1;transform:translateY(0)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-deep);
  color:var(--c-paper);
  border-radius:0;
  padding:72px 0;
  margin-top:80px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"05";
  position:absolute;
  right:24px;
  bottom:-40px;
  font-size:200px;
  font-weight:700;
  line-height:1;
  color:rgba(250,248,243,.06);
  letter-spacing:-.03em;
  pointer-events:none;
}
.cta-band h2{color:#FAF8F3;font-size:34px;margin-bottom:12px}
.cta-band p{color:rgba(250,248,243,.72);font-size:16px;margin:0;max-width:40em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-main{color:var(--c-ink)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-ink);
  color:#E9EDE9;
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand{color:#FAF8F3;font-size:19px}
.footer-brand p{
  color:rgba(233,237,233,.66);
  font-size:14px;
  line-height:1.8;
  margin:16px 0 0;
  max-width:30em;
}
.footer-contact{color:rgba(233,237,233,.5)!important;font-size:13px!important}
.footer-col h4{font-size:15px;color:#FAF8F3;margin-bottom:16px}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(233,237,233,.7);
  padding:6px 0;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  font-size:13px;
  color:rgba(233,237,233,.6);
}
.to-top{
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.28);
  background:transparent;
  color:#FAF8F3;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .stat-num{font-size:32px}
  .sticky-side{position:static}
}
@media (max-width:991.98px){
  h1{font-size:32px}
  h2{font-size:25px}
  .page-hero h1{font-size:32px}
  .lead-text{font-size:16px}
  .brand-row{min-height:58px;gap:14px}
  .nav-toggle{display:inline-flex}
  .nav-channels{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:280px;
    max-width:86vw;
    padding:88px 24px 24px;
    background:var(--c-paper);
    border-left:1px solid var(--c-line);
    box-shadow:var(--sh-3);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    transform:translateX(100%);
    transition:transform .28s var(--ease);
    z-index:1050;
    overflow-y:auto;
  }
  .nav-channels.is-open{transform:translateX(0)}
  .nav-channels .nav-link{
    height:52px;
    display:flex;
    align-items:center;
    border-bottom:1px solid var(--c-line);
    font-size:16px;
    padding:0;
  }
  .nav-channels .nav-link::after{display:none}
  .nav-channels .nav-link.active{color:var(--c-brand);font-weight:700}
  .search-wrap{display:none}
  .hot-inner{height:38px}
  .section{padding-top:56px}
  .timeline{padding-left:30px}
  .tl-item::before{left:-26px}
  .cta-band{padding:52px 0;margin-top:56px}
  .cta-band h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .side-panel{margin-bottom:16px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding-left:18px;padding-right:18px}
  h1{font-size:28px}
  .page-hero h1{font-size:28px}
  .hero-stats{gap:0}
  .stat{padding:0 16px}
  .stat-num{font-size:26px}
  .stat-label{font-size:12px}
  .hero-figure{aspect-ratio:16/10;margin-top:8px}
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{width:100%}
  .cta-actions .btn-main,
  .cta-actions .btn-ghost{width:100%}
  .tl-card{padding:18px}
  .faq-btn{min-height:56px;font-size:16px;gap:12px}
  .faq-panel-inner{padding-left:36px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:row;align-items:center;font-size:12px}
  .cta-band::after{font-size:130px;right:8px}
  .section-head h2{font-size:23px}
}
@media (max-width:575.98px){
  .brand{font-size:17px}
  .stat{padding:0 12px}
  .stat-num{font-size:22px}
  .btn-sm{padding:8px 12px;font-size:13px}
  .hero-stats{flex-wrap:nowrap}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --c-ink:#0E1512;
  --c-brand:#12362A;
  --c-brand-2:#1B5540;
  --c-deep:#08201A;
  --c-accent:#C3EE4F;
  --c-accent-soft:#EAF9C9;
  --c-flag:#D8622F;
  --c-paper:#FAF8F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F2EFE6;
  --c-line:#E4E0D4;
  --c-text:#151B18;
  --c-muted:#5C6660;
  --c-muted-2:#8A938E;
  --r-xs:6px;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,21,18,.05);
  --sh-2:0 10px 30px -18px rgba(14,21,18,.35);
  --sh-3:0 24px 60px -32px rgba(14,21,18,.45);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1220px;
  --pad:24px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.no-scroll{overflow:hidden}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
}
@media (min-width:1400px){
  .container{max-width:1280px}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
}
section[id],.cta-band[id]{scroll-margin-top:130px}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--c-line);
  box-shadow:var(--sh-1);
}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
  transition:min-height .22s var(--ease);
}
.site-header.is-scrolled .brand-row{min-height:52px}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--c-brand);
  font-size:20px;
  letter-spacing:-.01em;
  line-height:1.2;
  white-space:nowrap;
}
.brand-mark{
  width:8px;
  height:8px;
  background:var(--c-accent);
  border:1px solid var(--c-brand);
  display:inline-block;
  flex:none;
}
.brand-text{display:inline-block}
.nav-channels{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--c-muted);
  padding:8px 0;
  transition:color .18s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover,.nav-link.active{color:var(--c-brand)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.search-wrap{
  display:flex;
  align-items:center;
  gap:8px;
  height:40px;
  width:40px;
  overflow:hidden;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  background:var(--c-surface);
  padding:0 11px;
  transition:width .22s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  cursor:pointer;
}
.search-wrap i{font-size:15px;color:var(--c-muted);flex:none}
.search-wrap input{
  border:0;
  outline:0;
  background:transparent;
  width:0;
  opacity:0;
  font-size:14px;
  color:var(--c-text);
  transition:width .22s var(--ease),opacity .18s var(--ease);
}
.search-wrap.is-open{width:220px;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(195,238,79,.35)}
.search-wrap.is-open input{width:100%;opacity:1}
.search-wrap.is-open i{color:var(--c-brand)}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:var(--c-accent);
  color:var(--c-ink);
  border:1px solid transparent;
  border-radius:var(--r-s);
  padding:14px 26px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-main:hover{background:#B4E339;transform:translateY(-1px);box-shadow:var(--sh-2);color:var(--c-ink)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-sm{padding:11px 18px;font-size:14px;border-radius:8px}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:var(--c-surface);
  color:var(--c-brand);
  align-items:center;
  justify-content:center;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--c-brand);background:var(--c-accent-soft)}
.hot-row{
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.hot-inner{
  display:flex;
  align-items:center;
  gap:10px;
  height:40px;
  overflow-x:auto;
  scrollbar-width:none;
}
.hot-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:12px;color:var(--c-muted-2);white-space:nowrap;flex:none}
.hot-pill{
  font-size:12px;
  padding:4px 12px;
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  color:var(--c-muted);
  white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.hot-pill:hover{background:var(--c-accent-soft);color:var(--c-brand);border-color:var(--c-brand)}
.hot-pill.flag{border-color:var(--c-flag);color:var(--c-flag)}
.hot-pill.flag:hover{background:#fff4ed;border-color:var(--c-flag);color:var(--c-flag)}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(14,21,18,.38);
  opacity:0;
  visibility:hidden;
  transition:opacity .22s var(--ease),visibility .22s var(--ease);
  z-index:1035;
}
.nav-backdrop.is-open{opacity:1;visibility:visible}

/* Hero / breadcrumb */
.breadcrumb-row{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted-2);
  padding-top:28px;
  margin-bottom:8px;
}
.breadcrumb-row a{transition:color .18s var(--ease)}
.breadcrumb-row a:hover{color:var(--c-brand)}
.breadcrumb-row .dot{width:12px;height:12px;background:var(--c-accent);display:inline-block;flex:none}
.breadcrumb-row .current{color:var(--c-brand);font-weight:600}
.page-hero{padding:36px 0 44px}
.page-hero h1{
  font-size:48px;
  line-height:1.18;
  font-weight:700;
  letter-spacing:-.01em;
  margin:0 0 18px;
  color:var(--c-ink);
  max-width:960px;
}
.page-hero .lead{
  font-size:18px;
  line-height:1.8;
  color:var(--c-muted);
  max-width:820px;
  margin:0;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  line-height:1.4;
  padding:3px 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-surface-2);
  color:var(--c-brand);
  white-space:nowrap;
}
.tag-accent{background:var(--c-accent-soft);border-color:transparent;color:var(--c-brand)}
.tag-flag{background:transparent;border-color:var(--c-flag);color:var(--c-flag)}

/* Layout */
.content-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
  padding-bottom:48px;
}
.main-column{min-width:0}
.sidebar{
  position:sticky;
  top:120px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.section{margin-bottom:72px}

/* Feature */
.feature-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  margin-bottom:64px;
}
.feature-main{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.feature-main .cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.feature-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.feature-main:hover .cover img{transform:scale(1.04)}
.feature-main .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-main h2{font-size:24px;line-height:1.35;margin:0;color:var(--c-ink);transition:color .18s var(--ease)}
.feature-main:hover h2{color:var(--c-brand)}
.feature-main p{font-size:15px;color:var(--c-muted);margin:0;line-height:1.75}
.feature-side{display:flex;flex-direction:column;gap:24px}
.side-card{
  flex:1;
  display:flex;
  flex-direction:column;
  gap:10px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:20px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.side-card:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.side-card h3{font-size:18px;line-height:1.4;margin:0;color:var(--c-ink)}
.side-card p{font-size:14px;color:var(--c-muted);margin:0;line-height:1.7}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  width:max-content;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
  position:relative;
  padding-bottom:2px;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--c-accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s var(--ease);
}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow i{font-size:12px;transition:transform .18s var(--ease)}
.link-arrow:hover i{transform:translateX(3px)}

/* Section headings */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-kicker{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--c-brand);
  font-weight:600;
  margin-bottom:6px;
}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  margin:0;
  letter-spacing:-.01em;
  color:var(--c-ink);
}
.section-head .sub{
  font-size:15px;
  color:var(--c-muted);
  margin:6px 0 0;
  max-width:680px;
}

/* Benefit list */
.benefit-list{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--c-line);
}
.benefit-row{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:72px;
  padding:16px 0 16px 18px;
  border-bottom:1px solid var(--c-line);
  transition:background .18s var(--ease);
}
.benefit-row::before{
  content:"";
  position:absolute;
  left:0;
  top:18px;
  bottom:18px;
  width:3px;
  background:var(--c-accent);
  transform:scaleY(.4);
  transform-origin:top;
  transition:transform .22s var(--ease);
}
.benefit-row:hover{background:#FCFBF7}
.benefit-row:hover::before{transform:scaleY(1)}
.benefit-row .num{
  width:28px;
  flex:none;
  font-size:13px;
  color:var(--c-muted-2);
  font-variant-numeric:tabular-nums;
}
.benefit-row .text{flex:1;min-width:0}
.benefit-row h3{font-size:17px;line-height:1.45;font-weight:600;margin:0 0 2px;color:var(--c-ink)}
.benefit-row p{font-size:14px;line-height:1.6;color:var(--c-muted);margin:0}
.benefit-row .time{
  flex:none;
  font-size:13px;
  color:var(--c-muted-2);
  white-space:nowrap;
  padding-left:12px;
}

/* Steps */
.steps{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.step{
  position:relative;
  overflow:hidden;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:24px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:rgba(18,54,42,.28);box-shadow:var(--sh-2)}
.step-num{
  font-size:48px;
  line-height:1;
  font-weight:700;
  color:var(--c-accent-soft);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.step h3{font-size:18px;line-height:1.4;margin:0 0 8px;color:var(--c-ink)}
.step p{font-size:14px;line-height:1.7;color:var(--c-muted);margin:0}

/* Sidebar panels */
.side-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:22px;
}
.side-panel h3{font-size:18px;line-height:1.4;margin:0 0 14px;color:var(--c-ink)}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  font-size:14px;
  color:var(--c-muted);
  border-bottom:1px solid var(--c-line);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.side-nav a:last-child{border-bottom:0}
.side-nav a:hover{color:var(--c-brand);padding-left:4px}
.side-nav a.active{color:var(--c-brand);font-weight:600}
.side-nav a .mini{font-size:11px;color:var(--c-muted-2);font-weight:400}
.side-nav a i{font-size:11px;color:var(--c-muted-2);transition:transform .18s var(--ease),color .18s var(--ease)}
.side-nav a:hover i{transform:translateX(3px);color:var(--c-brand)}

/* FAQ */
.faq{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  gap:12px;
  background:none;
  border:0;
  padding:16px 0;
  text-align:left;
  color:var(--c-text);
}
.faq-q .q-mark{
  width:18px;
  flex:none;
  font-size:14px;
  font-weight:700;
  color:var(--c-muted-2);
}
.faq-q .q-text{
  flex:1;
  font-size:15px;
  font-weight:600;
  line-height:1.5;
  transition:color .18s var(--ease);
}
.faq-q .faq-icon{font-size:14px;color:var(--c-muted-2);transition:transform .18s var(--ease),color .18s var(--ease)}
.faq-item.is-open .faq-q .q-text{color:var(--c-brand)}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease)}
.faq-a-inner{
  padding:0 0 16px 30px;
  font-size:14px;
  line-height:1.75;
  color:var(--c-muted);
  border-left:3px solid transparent;
  transition:border-color .18s var(--ease);
}
.faq-item.is-open .faq-a-inner{border-left-color:var(--c-accent)}

/* CTA */
.cta-band{
  position:relative;
  overflow:hidden;
  color:var(--c-paper);
  background-color:var(--c-deep);
  background-image:linear-gradient(rgba(8,32,26,.94),rgba(8,32,26,.94)),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  border-radius:var(--r-l);
  padding:72px;
  margin-bottom:96px;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:32px;
  align-items:center;
}
.cta-band h2{font-size:34px;line-height:1.25;margin:0 0 12px;color:var(--c-paper)}
.cta-band p{margin:0;font-size:16px;line-height:1.8;color:rgba(250,248,243,.72)}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.btn-light,.btn-outline-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-s);
  padding:14px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.btn-light{background:var(--c-accent);color:var(--c-ink);border:1px solid var(--c-accent)}
.btn-light:hover{background:#B4E339;border-color:#B4E339;transform:translateY(-1px);color:var(--c-ink)}
.btn-outline-light{background:transparent;color:var(--c-paper);border:1px solid rgba(250,248,243,.5)}
.btn-outline-light:hover{background:rgba(250,248,243,.08);border-color:rgba(250,248,243,.72);transform:translateY(-1px);color:var(--c-paper)}

/* Footer */
.site-footer{background:var(--c-ink);color:var(--c-paper);padding-top:64px}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr .8fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .brand{color:var(--c-paper);margin-bottom:16px;font-size:19px}
.footer-brand .brand-mark{background:var(--c-accent);border-color:var(--c-accent)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(250,248,243,.62);margin:0 0 10px;max-width:340px}
.footer-brand .footer-contact{font-size:13px;color:rgba(250,248,243,.5);margin:0}
.footer-col h4{font-size:14px;line-height:1.4;margin:0 0 16px;color:var(--c-paper);font-weight:600}
.footer-col a{
  display:block;
  font-size:14px;
  color:rgba(250,248,243,.62);
  padding:5px 0;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  font-size:13px;
  color:rgba(250,248,243,.48);
}
.to-top{
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid rgba(250,248,243,.28);
  background:transparent;
  color:var(--c-paper);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:none;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.to-top:hover{background:var(--c-accent);color:var(--c-ink);border-color:var(--c-accent);transform:translateY(-2px)}

/* Responsive */
@media (max-width:1199.98px){
  .content-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px}
  .cta-band{padding:56px}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .nav-channels{
    position:fixed;
    top:0;
    right:0;
    width:300px;
    max-width:86vw;
    height:100vh;
    z-index:1040;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:88px 24px 24px;
    background:var(--c-paper);
    box-shadow:var(--sh-3);
    transform:translateX(100%);
    transition:transform .32s var(--ease);
    overflow-y:auto;
  }
  .nav-channels.is-open{transform:translateX(0)}
  .nav-link{font-size:16px;padding:14px 0;border-bottom:1px solid var(--c-line)}
  .nav-link::after{display:none}
  .nav-link.active{border-left:3px solid var(--c-accent);padding-left:12px}
  .content-layout{grid-template-columns:1fr;gap:40px}
  .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:24px;order:2}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{display:grid;grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-hero h1{font-size:38px}
  .section-head h2{font-size:28px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .brand{font-size:17px;gap:8px}
  .nav-tools{gap:8px}
  .nav-tools .btn-main.btn-sm{display:none}
  .hot-inner{height:38px}
  .page-hero{padding:28px 0 36px}
  .page-hero h1{font-size:30px;line-height:1.24;margin-bottom:14px}
  .page-hero .lead{font-size:16px;line-height:1.8}
  .breadcrumb-row{padding-top:20px}
  .content-layout{padding-bottom:32px}
  .feature-grid{margin-bottom:56px}
  .feature-side{grid-template-columns:1fr}
  .section{margin-bottom:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:24px}
  .section-head .sub{font-size:14px}
  .feature-main .body{padding:20px}
  .feature-main h2{font-size:21px}
  .benefit-row{flex-wrap:wrap;align-items:flex-start;gap:6px 14px;padding:16px 0 16px 16px}
  .benefit-row .num{width:24px;padding-top:2px}
  .benefit-row .text{flex:1 1 calc(100% - 38px)}
  .benefit-row .time{flex:0 0 100%;padding-left:38px}
  .sidebar{grid-template-columns:1fr}
  .steps{gap:16px}
  .step{padding:20px}
  .step-num{font-size:38px}
  .cta-band{padding:40px 24px;margin-bottom:64px;border-radius:var(--r-m)}
  .cta-band h2{font-size:24px}
  .cta-band p{font-size:14px}
  .cta-actions{flex-direction:column}
  .btn-light,.btn-outline-light{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
  .footer-brand .brand{font-size:18px}
  .footer-bottom{font-size:12px;align-items:flex-start}
}
@media (max-width:519.98px){
  .page-hero h1{font-size:27px}
  .section-head h2{font-size:22px}
  .feature-main h2{font-size:20px}
  .side-panel{padding:18px}
  .brand{font-size:16px}
  .brand-mark{width:7px;height:7px}
  .search-wrap{width:38px;height:38px}
  .nav-toggle{width:38px;height:38px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}
}