/* roulang page: index */
:root{
  --ink:#11403C;
  --deep:#0D2F2C;
  --coral:#E0532F;
  --mist:#8FB3AB;
  --bg:#F6F2EA;
  --card:#FFFDF9;
  --ph:#EDE8DE;
  --text:#1F1F1B;
  --muted:#6B6659;
  --line:#E2DCD0;
  --r-card:4px;
  --r-btn:2px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --nav-w:240px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body.ly-root{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.ly-root.is-locked{ overflow:hidden; }

body.ly-root img{ max-width:100%; display:block; }
body.ly-root a{ color:inherit; text-decoration:none; }
body.ly-root button{ font-family:inherit; }
body.ly-root p{ margin:0 0 1.15em; }
body.ly-root p:last-child{ margin-bottom:0; }

@media (min-width:1024px){ body.ly-root{ padding-left:88px; } }
@media (min-width:1280px){ body.ly-root{ padding-left:var(--nav-w); } }

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:200;
  background:var(--ink); color:#F6F2EA; padding:12px 18px; border-radius:2px; font-size:14px;
}
.skip-link:focus{ left:16px; top:16px; }

:where(a,button,input,summary,[tabindex]):focus-visible{
  outline:2px solid var(--coral);
  outline-offset:3px;
  border-radius:2px;
}

/* ============ 左侧竖导航 ============ */
.side-nav{
  position:fixed; left:0; top:0; bottom:0; width:var(--nav-w);
  background:var(--deep); color:#F1EBE0;
  display:none; flex-direction:column;
  padding:38px 22px 26px; z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
@media (min-width:1024px){ .side-nav{ display:flex; } }

.side-brand{ display:block; margin-bottom:44px; }
.side-brand__top{
  display:block; font-size:20px; font-weight:800; letter-spacing:.04em;
  color:#FFFDF9; line-height:1.2;
}
.side-brand__bottom{
  display:block; margin-top:6px; font-size:13px; font-weight:500;
  letter-spacing:.14em; color:var(--mist); line-height:1.4;
}
.side-brand__short{ display:none; font-size:16px; font-weight:800; letter-spacing:.06em; color:#FFFDF9; }

.side-menu{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:2px; }
.side-menu__link{
  position:relative; display:flex; align-items:center; gap:12px;
  padding:14px 12px 14px 14px; font-size:14px; font-weight:500;
  color:#D9D3C6; border-radius:2px;
  transition:color .18s var(--ease), background .18s var(--ease);
}
.side-menu__link::before{
  content:""; position:absolute; left:0; top:50%; transform:translateY(-50%);
  width:0; height:18px; background:var(--coral); border-radius:1px;
  transition:width .18s var(--ease);
}
.side-menu__link:hover{ color:#FFFDF9; background:rgba(255,255,255,.05); }
.side-menu__link:hover::before{ width:2px; }
.side-menu__link[aria-current="page"]{ color:#FFFDF9; font-weight:600; }
.side-menu__link[aria-current="page"]::before{ width:2px; }
.side-menu__icon{ width:16px; text-align:center; font-size:13px; opacity:.85; }

.side-foot{ margin-top:auto; padding-top:28px; }
.side-cta{
  display:flex; align-items:center; justify-content:center; gap:8px;
  width:100%; padding:13px 16px; border-radius:2px;
  background:var(--ink); color:#F6F2EA; font-size:14px; font-weight:600;
  border:1px solid rgba(143,179,171,.5);
  transition:background .22s var(--ease), transform .18s var(--ease), color .22s var(--ease);
}
.side-cta:hover{ background:var(--coral); border-color:var(--coral); color:#fff; }
.side-cta:active{ transform:translateY(1px); }
.side-note{ margin-top:14px; font-size:12px; line-height:1.7; color:#8E9A92; letter-spacing:.02em; }

@media (min-width:1024px) and (max-width:1279px){
  .side-nav{ width:88px; padding:28px 10px 22px; align-items:center; }
  .side-brand{ margin-bottom:30px; text-align:center; }
  .side-brand__top, .side-brand__bottom{ display:none; }
  .side-brand__short{ display:block; }
  .side-menu{ width:100%; }
  .side-menu__link{ justify-content:center; padding:14px 0; font-size:0; gap:0; }
  .side-menu__icon{ font-size:15px; }
  .side-cta{ font-size:0; padding:13px 0; }
  .side-cta i{ font-size:15px; }
  .side-note{ display:none; }
}

/* ============ 移动端顶部导航 ============ */
.top-bar{ display:none; }
@media (max-width:1023px){
  .top-bar{
    display:flex; position:sticky; top:0; z-index:70; height:64px;
    align-items:center; justify-content:space-between;
    padding:0 18px; background:rgba(246,242,234,.96);
    backdrop-filter:blur(8px); border-bottom:1px solid var(--line);
  }
  .top-brand{ font-size:16px; font-weight:800; color:var(--ink); letter-spacing:.02em; }
  .top-brand span{ color:var(--muted); font-weight:500; font-size:13px; margin-left:6px; }
  .burger{
    width:40px; height:40px; display:flex; align-items:center; justify-content:center;
    border:1px solid var(--line); border-radius:2px; background:var(--card); color:var(--ink);
    font-size:16px; cursor:pointer;
  }
  .burger:active{ transform:translateY(1px); }
}

.drawer{
  position:fixed; inset:0; z-index:90; background:var(--bg);
  display:flex; flex-direction:column; padding:22px 22px 32px;
  transform:translateY(-102%); transition:transform .34s var(--ease);
  visibility:hidden;
}
.drawer.is-open{ transform:translateY(0); visibility:visible; }
.drawer__head{ display:flex; align-items:center; justify-content:space-between; padding-bottom:20px; border-bottom:1px solid var(--line); }
.drawer__brand{ font-size:17px; font-weight:800; color:var(--ink); }
.drawer__close{
  width:40px; height:40px; display:flex; align-items:center; justify-content:center;
  border:1px solid var(--line); border-radius:2px; background:var(--card); color:var(--ink); cursor:pointer;
}
.drawer__menu{ list-style:none; margin:22px 0 0; padding:0; display:flex; flex-direction:column; gap:4px; }
.drawer__menu a{
  display:block; padding:14px 4px; font-size:20px; font-weight:600; color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer__menu a[aria-current="page"]{ color:var(--coral); }
.drawer__foot{ margin-top:auto; padding-top:24px; }
.drawer__cta{
  display:flex; align-items:center; justify-content:center; gap:8px;
  padding:15px 20px; border-radius:2px; background:var(--ink); color:#F6F2EA;
  font-size:15px; font-weight:600;
}
.drawer__cta:active{ transform:translateY(1px); }

/* ============ 容器 ============ */
.wrap{ width:100%; max-width:1240px; margin:0 auto; padding:0 20px; }
@media (min-width:768px){ .wrap{ padding:0 32px; } }
@media (min-width:1024px){ .wrap{ padding:0 48px; } }
@media (min-width:1280px){ .wrap{ padding-left:64px; padding-right:56px; } }

.section{ padding:60px 0; }
@media (min-width:1024px){ .section{ padding:100px 0; } }
.section--tight{ padding:40px 0; }
@media (min-width:1024px){ .section--tight{ padding:56px 0; } }

/* ============ 通用组件 ============ */
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-size:13px; font-weight:600; letter-spacing:.14em; color:var(--muted);
  text-transform:uppercase; margin-bottom:16px;
}
.eyebrow::before{ content:""; width:24px; height:2px; background:var(--coral); border-radius:1px; }

.h2{ font-size:clamp(24px,3vw,36px); font-weight:700; line-height:1.22; letter-spacing:-.01em; color:var(--ink); margin:0 0 14px; }
.h3{ font-size:22px; font-weight:600; line-height:1.35; color:var(--ink); margin:0 0 10px; }
.lead{ font-size:16px; line-height:1.9; color:var(--muted); max-width:44ch; }
@media (min-width:1024px){ .lead{ font-size:17px; } }

.badge{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 11px; font-size:12.5px; font-weight:500; line-height:1.5;
  border:1px solid var(--mist); border-radius:2px; color:#2F5F58; background:transparent;
  white-space:nowrap;
}
.badge--solid{ background:var(--ink); border-color:var(--ink); color:#F6F2EA; }

.btn{
  position:relative; display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:14px 26px; border-radius:var(--r-btn); font-size:15px; font-weight:600;
  border:1px solid transparent; cursor:pointer; overflow:hidden;
  transition:color .22s var(--ease), transform .18s var(--ease), box-shadow .24s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
}
.btn span, .btn i{ position:relative; z-index:1; }
.btn .btn-arrow{ transition:transform .22s var(--ease); }
.btn:hover .btn-arrow{ transform:translateX(4px); }
.btn:active{ transform:translateY(1px); }

.btn-primary{ background:var(--ink); color:#F6F2EA; }
.btn-primary::before{
  content:""; position:absolute; inset:0; background:var(--coral);
  transform:translateY(101%); transition:transform .22s var(--ease); z-index:0;
}
.btn-primary:hover::before{ transform:translateY(0); }
.btn-primary:hover{ color:#fff; }

.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--ink); }
.btn-ghost:hover{ background:var(--card); transform:translateY(-2px); box-shadow:0 18px 40px -24px rgba(17,64,60,.35); }

.link-underline{
  position:relative; display:inline-flex; align-items:center; gap:8px;
  font-size:14px; font-weight:600; color:var(--ink);
}
.link-underline::after{
  content:""; position:absolute; left:0; bottom:-4px; height:1px; width:100%;
  background:var(--ink); transform:scaleX(0); transform-origin:left;
  transition:transform .24s var(--ease);
}
.link-underline:hover::after{ transform:scaleX(1); }

.card{
  position:relative; display:flex; flex-direction:column;
  background:var(--card); border:1px solid var(--line); border-radius:var(--r-card);
  overflow:hidden; box-shadow:0 1px 0 rgba(17,64,60,.06);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.card:hover{ transform:translateY(-2px); box-shadow:0 18px 40px -20px rgba(17,64,60,.28); border-color:#CFDCD5; }

.media{ position:relative; overflow:hidden; background:var(--ph); border-radius:4px; }
.media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.card:hover .media img, .media:hover img{ transform:scale(1.03); }

/* ============ Hero ============ */
.hero{
  display:grid; grid-template-columns:1fr; gap:36px;
  padding:44px 0 36px; align-items:center; position:relative;
}
@media (min-width:1024px){
  .hero{ grid-template-columns:7fr 5fr; gap:56px; padding:72px 0 56px; }
}

.hero__brand{
  display:inline-flex; align-items:center; gap:8px; margin-bottom:20px;
  font-size:13px; letter-spacing:.16em; font-weight:600; color:#2F5F58;
}
.hero__brand::before{ content:""; width:7px; height:7px; border-radius:50%; background:var(--coral); }

.hero h1{
  margin:0 0 20px; color:var(--ink);
  font-size:clamp(36px,5.4vw,72px); font-weight:800; line-height:1.08; letter-spacing:-.02em;
  word-break:break-word;
}
.hero h1 .h1-sub{
  display:block; margin-top:12px; font-size:clamp(17px,2.1vw,26px);
  font-weight:600; line-height:1.5; letter-spacing:0; color:#2F5F58;
}

.hero__desc{ font-size:16px; line-height:1.9; color:var(--muted); max-width:40ch; margin:0 0 26px; }
@media (min-width:1024px){ .hero__desc{ font-size:17px; } }

.hero__actions{ display:flex; flex-wrap:wrap; gap:12px; margin-bottom:26px; }
.hero__tags{ display:flex; flex-wrap:wrap; gap:8px; }

.hero__figure{ position:relative; }
.hero__figure .media{ aspect-ratio:16/11; border:1px solid var(--line); }
@media (min-width:1024px){ .hero__figure .media{ aspect-ratio:4/5; } }
.hero__num{
  position:absolute; left:14px; top:14px; z-index:2;
  font-size:12px; font-weight:700; letter-spacing:.16em;
  padding:5px 10px; background:rgba(13,47,44,.82); color:#F6F2EA; border-radius:2px;
}
.hero__rings{
  position:absolute; right:-26px; top:-26px; width:150px; height:150px; z-index:0;
  border:1px solid var(--ink); border-radius:50%; opacity:.15; pointer-events:none;
}
.hero__rings::after{
  content:""; position:absolute; inset:26px; border:1px solid var(--ink); border-radius:50%;
}
@media (max-width:1023px){ .hero__rings{ display:none; } }

/* 关键词条 */
.keybar{
  display:flex; flex-wrap:wrap; align-items:center; gap:10px 22px;
  border-top:1px solid var(--line); padding:22px 0;
}
.keybar__label{ font-size:12.5px; letter-spacing:.14em; color:var(--muted); font-weight:600; }
.keybar__item{ font-size:14px; color:#2F5F58; font-weight:500; position:relative; padding-left:16px; }
.keybar__item::before{ content:""; position:absolute; left:0; top:50%; transform:translateY(-50%); width:5px; height:5px; background:var(--mist); border-radius:1px; }

/* ============ 品牌主张 ============ */
.claim{ display:grid; grid-template-columns:1fr; gap:24px; }
@media (min-width:1024px){ .claim{ grid-template-columns:3fr 7fr; gap:56px; } }
.claim__side{ border-left:2px solid var(--coral); padding-left:16px; }
.claim__side h2{ font-size:20px; font-weight:700; color:var(--ink); margin:0; line-height:1.5; }
.claim__body p{ font-size:16px; line-height:2; color:#3A3A34; max-width:42ch; }
@media (min-width:1024px){ .claim__body p{ font-size:17px; } }

/* ============ 步骤 / 理念 ============ */
.steps{ position:relative; display:flex; flex-direction:column; }
.step{
  position:relative; display:grid; grid-template-columns:1fr; gap:6px;
  padding:0 0 34px 40px; border-left:1px solid var(--line); margin-left:9px;
}
.step:last-child{ border-left-color:transparent; padding-bottom:0; }
.step::before{
  content:""; position:absolute; left:-6px; top:8px; width:11px; height:11px;
  border-radius:50%; background:var(--bg); border:2px solid var(--ink);
  transition:background .2s var(--ease), border-color .2s var(--ease);
}
.step:hover::before{ background:var(--coral); border-color:var(--coral); }
.step__no{ font-size:12.5px; font-weight:700; letter-spacing:.16em; color:var(--mist); }
.step__title{ font-size:19px; font-weight:600; color:var(--ink); margin:2px 0 6px; }
.step__text{ font-size:15px; line-height:1.9; color:var(--muted); max-width:46ch; margin:0; }

/* ============ 栏目导览 ============ */
.nav-cards{ display:grid; grid-template-columns:1fr; gap:16px; }
@media (min-width:768px){ .nav-cards{ grid-template-columns:repeat(3,1fr); gap:20px; } }
.nav-card{
  display:flex; flex-direction:column; gap:10px;
  padding:26px 24px 24px; background:var(--card);
  border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:0 1px 0 rgba(17,64,60,.06);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease), border-color .24s var(--ease);
}
.nav-card:hover{ transform:translateY(-2px); box-shadow:0 18px 40px -20px rgba(17,64,60,.28); border-color:var(--mist); }
.nav-card__no{ font-size:12.5px; font-weight:700; letter-spacing:.16em; color:var(--coral); }
.nav-card__title{ font-size:20px; font-weight:600; color:var(--ink); line-height:1.4; }
.nav-card__text{ font-size:14.5px; line-height:1.85; color:var(--muted); margin:0; }
.nav-card__more{ margin-top:auto; padding-top:12px; font-size:13.5px; font-weight:600; color:var(--ink); display:inline-flex; align-items:center; gap:8px; }
.nav-card:hover .nav-card__more i{ transform:translateX(4px); }
.nav-card__more i{ transition:transform .22s var(--ease); }

/* ============ 精选内容 ============ */
.feature-grid{ display:grid; grid-template-columns:1fr; gap:20px; }
@media (min-width:900px){
  .feature-grid{ grid-template-columns:1fr 1fr; grid-template-rows:auto auto; }
  .feature-grid .card--big{ grid-row:span 2; }
}
.card--big .media{ aspect-ratio:16/10; }
@media (min-width:900px){ .card--big .media{ aspect-ratio:4/3; } }
.card--small .media{ aspect-ratio:16/9; }
.card__body{ display:flex; flex-direction:column; gap:9px; padding:20px 20px 22px; flex:1; }
.card__title{ font-size:19px; font-weight:600; line-height:1.45; color:var(--ink); margin:0; }
@media (min-width:900px){ .card--big .card__title{ font-size:24px; } }
.card__desc{ font-size:14.5px; line-height:1.8; color:var(--muted); margin:0; }
.card__meta{ margin-top:auto; padding-top:12px; display:flex; align-items:center; justify-content:space-between; gap:12px; font-size:12.5px; color:var(--muted); }
.card__meta i{ transition:transform .22s var(--ease); color:var(--ink); }
.card:hover .card__meta i{ transform:translateX(4px); }

/* ============ 最新信息（CMS 区） ============ */
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; flex-wrap:wrap; margin-bottom:26px; }

.cms-list{ display:flex; flex-direction:column; border-bottom:1px solid var(--line); }
.cms-row{
  display:grid; grid-template-columns:1fr auto; gap:6px 18px;
  padding:20px 14px; border-top:1px solid var(--line);
  transition:background .2s var(--ease), padding-left .2s var(--ease);
}
.cms-row:hover{ background:var(--card); padding-left:22px; }
.cms-badge{
  grid-column:1 / -1; justify-self:start;
  font-size:12px; font-weight:500; color:#2F5F58;
  border:1px solid var(--mist); border-radius:2px; padding:2px 9px; line-height:1.6;
}
.cms-title{ grid-column:1; font-size:18px; font-weight:600; line-height:1.5; color:var(--ink); }
.cms-desc{ grid-column:1; font-size:14px; line-height:1.8; color:var(--muted); }
.cms-date{ grid-column:2; grid-row:2; font-size:12.5px; color:var(--muted); white-space:nowrap; align-self:start; }
.cms-arrow{ grid-column:2; grid-row:3; justify-self:end; align-self:center; color:var(--ink); font-size:16px; transition:transform .22s var(--ease); }
.cms-row:hover .cms-arrow{ transform:translateX(4px); }
@media (min-width:768px){
  .cms-row{ grid-template-columns:auto 1fr auto 22px; align-items:center; gap:20px; padding:22px 16px; }
  .cms-badge{ grid-column:1; grid-row:1; }
  .cms-title{ grid-column:2; grid-row:1; }
  .cms-desc{ grid-column:2; grid-row:2; }
  .cms-date{ grid-column:3; grid-row:1; align-self:center; }
  .cms-arrow{ grid-column:4; grid-row:1; }
}

.empty-state{
  border:1px dashed #C7D2CC; border-radius:var(--r-card);
  padding:40px 24px; text-align:center; font-size:15px; color:var(--muted);
}

/* ============ 数据与引用 ============ */
.stats{ display:grid; grid-template-columns:repeat(2,1fr); border-top:1px solid var(--line); }
@media (min-width:900px){ .stats{ grid-template-columns:repeat(4,1fr); } }
.stat{ padding:26px 16px 24px; border-bottom:1px solid var(--line); }
@media (min-width:520px){ .stat + .stat{ border-left:1px solid var(--line); } }
@media (max-width:519px){ .stat:nth-child(odd){ border-right:1px solid var(--line); } }
.stat__num{ font-size:clamp(30px,4vw,42px); font-weight:800; line-height:1; color:var(--ink); letter-spacing:-.02em; }
.stat__label{ margin-top:10px; font-size:13px; line-height:1.7; color:var(--muted); }

.quotes{ display:grid; grid-template-columns:1fr; gap:26px; margin-top:40px; }
@media (min-width:900px){ .quotes{ grid-template-columns:1fr 1fr; gap:48px; } }
.quote{ position:relative; padding-left:22px; }
.quote::before{ content:""; position:absolute; left:0; top:6px; bottom:6px; width:2px; background:var(--mist); }
.quote p{ font-size:16px; line-height:1.95; color:#3A3A34; margin:0 0 12px; }
.quote cite{ font-style:normal; font-size:13px; color:var(--muted); letter-spacing:.04em; }

/* ============ FAQ ============ */
.faq{ border-top:1px solid var(--line); }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:18px;
  padding:22px 4px; background:none; border:0; cursor:pointer; text-align:left;
  font-size:16px; font-weight:500; line-height:1.6; color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{ color:var(--coral); }
.faq-icon{ flex:0 0 auto; font-size:13px; color:var(--muted); transition:transform .28s var(--ease), color .2s var(--ease); }
.faq-item.is-open .faq-icon{ transform:rotate(45deg); color:var(--coral); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .32s var(--ease); }
.faq-a p{ font-size:15px; line-height:1.9; color:var(--muted); margin:0; padding:0 4px 24px; max-width:70ch; }

/* ============ CTA ============ */
.cta-band{ background:var(--ink); color:#F1EBE0; }
.cta-inner{ display:grid; grid-template-columns:1fr; gap:32px; padding:56px 0; }
@media (min-width:1024px){ .cta-inner{ grid-template-columns:1.1fr 1fr; gap:64px; align-items:center; padding:80px 0; } }
.cta-inner h2{ font-size:clamp(24px,3vw,34px); font-weight:700; line-height:1.3; margin:0 0 12px; color:#FFFDF9; }
.cta-inner p{ font-size:15px; line-height:1.9; color:#C8D3CE; margin:0; max-width:40ch; }

.sub-form{ display:flex; flex-direction:column; gap:14px; }
.sub-line{ display:flex; flex-wrap:wrap; gap:12px; align-items:flex-end; }
.sub-input{
  flex:1 1 200px; min-width:0; background:transparent; border:0;
  border-bottom:1px solid rgba(241,235,224,.4); color:#FFFDF9;
  font-size:15px; padding:12px 2px; font-family:inherit;
  transition:border-color .2s var(--ease), border-width .2s var(--ease);
}
.sub-input::placeholder{ color:#93A29B; }
.sub-input:focus{ outline:none; border-bottom:2px solid var(--coral); }
.sub-btn{
  display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:2px;
  background:#F6F2EA; color:var(--ink); font-size:14.5px; font-weight:600; border:1px solid #F6F2EA;
  cursor:pointer; transition:background .22s var(--ease), color .22s var(--ease), transform .18s var(--ease);
}
.sub-btn:hover{ background:var(--coral); border-color:var(--coral); color:#fff; }
.sub-btn:active{ transform:translateY(1px); }
.sub-note{ font-size:12.5px; line-height:1.8; color:#93A29B; }
.sub-msg{ font-size:13px; color:#F0A58D; min-height:18px; }

/* ============ 页脚 ============ */
.ly-footer{ background:var(--deep); color:#E6E1D6; border-top:1px solid rgba(255,255,255,.08); }
.footer-grid{ display:grid; grid-template-columns:1fr; gap:32px; padding:52px 0 40px; }
@media (min-width:768px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:48px; padding:64px 0 48px; } }
.footer-brand__top{ font-size:19px; font-weight:800; letter-spacing:.03em; color:#FFFDF9; }
.footer-brand__bottom{ margin-top:4px; font-size:13px; letter-spacing:.14em; color:var(--mist); }
.footer-brand p{ margin:14px 0 0; font-size:13.5px; line-height:1.9; color:#A9B3AC; max-width:30ch; }
.footer-col h3{ margin:0 0 14px; font-size:13px; font-weight:600; letter-spacing:.14em; color:#8E9A92; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:#DCD7CC; }
.footer-col a:hover{ color:#fff; text-decoration:underline; text-underline-offset:4px; }
.footer-col li span{ font-size:14px; color:#DCD7CC; word-break:break-all; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09); padding:18px 0 26px;
  display:flex; flex-wrap:wrap; gap:10px 24px; align-items:center; justify-content:space-between;
  font-size:12.5px; color:#8E9A92;
}
.footer-bottom a{ color:#8E9A92; }
.footer-bottom a:hover{ color:#DCD7CC; }

/* ============ 动效 ============ */
.reveal{ opacity:0; transform:translateY(12px); transition:opacity .48s var(--ease), transform .48s var(--ease); }
.reveal.is-in{ opacity:1; transform:translateY(0); }

@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
}

/* roulang page: category1 */
:root{
    --ink:#11403C;
    --deep:#0D2F2C;
    --coral:#E0532F;
    --mist:#8FB3AB;
    --bg:#F6F2EA;
    --card:#FFFDF9;
    --ph:#EDE8DE;
    --text:#1F1F1B;
    --sub:#6B6659;
    --line:#E2DCD0;
    --r-card:4px;
    --r-btn:2px;
    --shadow-1:0 1px 0 rgba(17,64,60,.06);
    --shadow-2:0 18px 40px -20px rgba(17,64,60,.28);
    --ease:cubic-bezier(.2,.7,.2,1);
    --side-w:240px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  html body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',sans-serif;
    font-size:16px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }
  html img{max-width:100%;display:block;border-radius:var(--r-card);}
  html a{color:inherit;text-decoration:none;}
  html button{font:inherit;color:inherit;}
  html h1,html h2,html h3,html h4{font-weight:700;margin:0;line-height:1.25;}
  html p{margin:0;}
  html ul{margin:0;padding:0;list-style:none;}

  /* ---------- 布局骨架 ---------- */
  .shell{margin-left:var(--side-w);transition:margin-left .2s var(--ease);}
  .wrap{width:100%;max-width:1280px;margin:0 auto;padding-inline:clamp(20px,4.5vw,64px);}
  .main{padding-top:clamp(24px,3vw,40px);}

  /* ---------- 左侧竖导航 ---------- */
  .ly-side{
    position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
    background:var(--deep);color:#E7EFEC;
    display:flex;flex-direction:column;
    padding:40px 26px 28px;
    z-index:60;
    border-right:1px solid rgba(255,255,255,.06);
  }
  .side-brand{display:block;margin-bottom:44px;}
  .side-brand b{display:block;font-size:22px;font-weight:800;letter-spacing:.08em;color:#fff;line-height:1.1;}
  .side-brand span{display:block;font-size:13px;letter-spacing:.18em;color:var(--mist);margin-top:8px;}
  .side-nav li + li{margin-top:2px;}
  .side-link{
    position:relative;display:flex;align-items:center;gap:12px;
    padding:14px 12px 14px 16px;border-radius:2px;
    font-size:14px;font-weight:500;color:#CFDDD8;
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .side-link::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:0;
    background:var(--coral);transition:width .18s var(--ease);
  }
  .side-link i{width:16px;text-align:center;color:var(--mist);font-size:14px;transition:color .18s var(--ease);}
  .side-link:hover{color:#fff;}
  .side-link:hover::before{width:2px;}
  .side-link:hover i{color:var(--coral);}
  .side-link:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .side-link.is-active{color:#fff;font-weight:600;background:rgba(255,255,255,.04);}
  .side-link.is-active::before{width:2px;}
  .side-link.is-active i{color:var(--coral);}
  .side-foot{margin-top:auto;padding-top:28px;}
  .side-cta{
    display:flex;align-items:center;justify-content:center;gap:8px;
    width:100%;padding:12px 16px;border-radius:var(--r-btn);
    background:#F6F2EA;color:var(--deep);
    font-size:14px;font-weight:600;letter-spacing:.02em;
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .side-cta:hover{background:var(--coral);color:#fff;}
  .side-cta:active{transform:translateY(1px);}
  .side-cta:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .side-note{margin-top:16px;font-size:12px;line-height:1.8;color:#8FA9A4;letter-spacing:.02em;word-break:break-all;}

  /* ---------- 移动端顶部导航 ---------- */
  .top-bar{display:none;}
  .burger{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:2px;cursor:pointer;
    color:var(--ink);transition:background .2s var(--ease),color .2s var(--ease);
  }
  .burger:hover{background:var(--card);}
  .burger:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .top-brand{font-size:19px;font-weight:800;letter-spacing:.06em;color:var(--ink);line-height:1.1;}
  .top-brand span{display:block;font-size:11px;font-weight:600;letter-spacing:.16em;color:var(--sub);margin-top:3px;}

  .drawer{
    position:fixed;inset:0;z-index:120;background:var(--bg);
    padding:20px 22px 32px;display:flex;flex-direction:column;
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .drawer.is-open{opacity:1;visibility:visible;transform:none;}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
  .drawer-close{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:2px;cursor:pointer;color:var(--ink);
  }
  .drawer-close:hover{background:var(--card);}
  .drawer-close:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .drawer-nav{display:flex;flex-direction:column;padding-top:20px;}
  .drawer-nav a{
    padding:16px 0;font-size:20px;font-weight:600;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a[aria-current="page"]{color:var(--coral);}
  .drawer-cta{margin-top:auto;justify-content:center;width:100%;}

  /* ---------- 通用按钮 ---------- */
  .btn{
    position:relative;display:inline-flex;align-items:center;gap:10px;
    padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
    overflow:hidden;isolation:isolate;
    transition:color .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
  }
  .btn i{transition:transform .22s var(--ease);}
  .btn:hover i{transform:translateX(4px);}
  .btn:active{transform:translateY(1px);}
  .btn:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .btn-primary{background:var(--ink);color:#F6F2EA;}
  .btn-primary::after{
    content:"";position:absolute;inset:0;background:var(--coral);z-index:-1;
    transform:translateY(100%);transition:transform .22s var(--ease);
  }
  .btn-primary:hover{color:#fff;}
  .btn-primary:hover::after{transform:translateY(0);}
  .btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
  .btn-ghost:hover{background:var(--card);transform:translateY(-2px);}
  .btn-light{background:#F6F2EA;color:var(--deep);}
  .btn-light:hover{background:var(--coral);color:#fff;}
  .btn-line-light{background:transparent;border-color:rgba(246,242,234,.45);color:#F6F2EA;}
  .btn-line-light:hover{border-color:#F6F2EA;background:rgba(246,242,234,.08);}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border:1px solid var(--mist);border-radius:2px;
    font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--ink);
    background:transparent;
  }
  .badge-coral{border-color:rgba(224,83,47,.4);color:var(--coral);}
  .tag{
    display:inline-flex;align-items:center;padding:6px 12px;
    border:1px solid var(--line);border-radius:2px;
    font-size:13px;color:var(--sub);background:var(--card);
  }

  /* ---------- 面包屑 ---------- */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--sub);margin-bottom:20px;}
  .crumb a{color:var(--sub);border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);}
  .crumb a:hover{color:var(--ink);border-color:var(--coral);}
  .crumb a:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .crumb-sep{color:var(--line);}
  .crumb [aria-current="page"]{color:var(--ink);font-weight:600;}

  /* ---------- 横幅 ---------- */
  .banner{
    position:relative;overflow:hidden;border:1px solid var(--line);
    border-radius:var(--r-card);background:var(--ph);aspect-ratio:21/9;
  }
  .banner img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .6s var(--ease);}
  .banner:hover img{transform:scale(1.03);}
  .banner::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background:linear-gradient(90deg,rgba(13,47,44,.82) 0%,rgba(13,47,44,.48) 46%,rgba(13,47,44,.06) 100%);
  }
  .banner-inner{
    position:absolute;left:0;right:0;bottom:0;z-index:2;
    padding:clamp(18px,3vw,40px);
    display:flex;flex-direction:column;align-items:flex-start;gap:14px;
  }
  .banner-tag{
    display:inline-block;padding:5px 12px;
    background:rgba(13,47,44,.72);border:1px solid rgba(143,179,171,.5);
    color:#E7EFEC;font-size:12px;letter-spacing:.14em;font-weight:600;border-radius:2px;
  }
  .banner-title{
    display:inline-block;max-width:22ch;
    background:rgba(13,47,44,.72);
    color:#F6F2EA;
    padding:10px 16px;
    font-size:clamp(21px,3.1vw,40px);
    font-weight:800;line-height:1.28;letter-spacing:-.01em;
    border-radius:2px;
  }
  .lead{
    margin-top:28px;max-width:64ch;
    font-size:16px;line-height:1.9;color:var(--sub);
  }
  .lead strong{color:var(--ink);font-weight:600;}

  /* ---------- 板块通用 ---------- */
  .section{margin-top:clamp(48px,6vw,96px);}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px;}
  .sec-title{position:relative;padding-left:18px;font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em;color:var(--ink);}
  .sec-title::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;background:var(--coral);border-radius:2px;}
  .sec-sub{font-size:14px;color:var(--sub);max-width:46ch;line-height:1.8;}
  .sec-link{
    display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);
    padding-bottom:2px;border-bottom:1px solid var(--line);
    transition:border-color .2s var(--ease),color .2s var(--ease);
  }
  .sec-link i{transition:transform .2s var(--ease);}
  .sec-link:hover{border-color:var(--coral);color:var(--coral);}
  .sec-link:hover i{transform:translateX(4px);}
  .sec-link:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}

  /* ---------- 横向长条列表 ---------- */
  .row-list{border-top:1px solid var(--line);}
  .row{
    display:grid;grid-template-columns:88px minmax(0,1fr) 240px;
    gap:clamp(16px,3vw,32px);align-items:center;
    padding:26px 18px 26px 0;
    border-bottom:1px solid var(--line);
    transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  }
  .row:hover{background:var(--card);transform:translateY(-2px);box-shadow:var(--shadow-2);}
  .row-num{
    font-size:clamp(30px,3.6vw,42px);font-weight:800;line-height:1;
    color:var(--mist);letter-spacing:-.02em;transition:color .22s var(--ease);
  }
  .row:hover .row-num{color:var(--coral);}
  .row-head{display:flex;align-items:center;gap:12px;}
  .row-title{font-size:20px;font-weight:600;color:var(--ink);line-height:1.4;}
  .row-arrow{color:var(--mist);font-size:14px;transition:transform .22s var(--ease),color .22s var(--ease);}
  .row:hover .row-arrow{transform:translateX(4px);color:var(--coral);}
  .row-desc{margin-top:8px;font-size:15px;line-height:1.85;color:var(--sub);max-width:52ch;}
  .row-thumb{
    aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-card);
    border:1px solid var(--line);background:var(--ph);
  }
  .row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
  .row:hover .row-thumb img{transform:scale(1.03);}

  /* ---------- 设备差异 ---------- */
  .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);}
  .device-item{
    padding:28px 26px 30px 0;
    border-bottom:1px solid var(--line);
  }
  .device-item + .device-item{border-left:1px solid var(--line);padding-left:26px;}
  .device-kicker{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--coral);}
  .device-title{margin-top:10px;font-size:19px;font-weight:600;color:var(--ink);}
  .device-text{margin-top:10px;font-size:15px;line-height:1.85;color:var(--sub);}

  /* ---------- 步骤 ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,2.4vw,28px);}
  .step{
    position:relative;padding:24px 22px 26px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-1);
    transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  }
  .step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--mist);}
  .step-idx{
    display:inline-flex;align-items:center;justify-content:center;
    width:32px;height:32px;border-radius:2px;
    background:var(--ink);color:#F6F2EA;font-size:13px;font-weight:700;letter-spacing:.04em;
  }
  .step-title{margin-top:14px;font-size:17px;font-weight:600;color:var(--ink);}
  .step-text{margin-top:8px;font-size:14.5px;line-height:1.85;color:var(--sub);}

  /* ---------- 指标 ---------- */
  .stats{
    display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(16px,3vw,32px);
    padding:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .stat-num{font-size:clamp(30px,4vw,46px);font-weight:800;color:var(--ink);line-height:1;letter-spacing:-.02em;}
  .stat-num span{font-size:16px;font-weight:600;color:var(--mist);margin-left:6px;}
  .stat-label{margin-top:10px;font-size:13px;color:var(--sub);line-height:1.7;}

  /* ---------- FAQ ---------- */
  .faq{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    width:100%;padding:22px 4px;cursor:pointer;list-style:none;
    font-size:16px;font-weight:500;color:var(--ink);
    transition:color .2s var(--ease);
  }
  .faq-q::-webkit-details-marker{display:none;}
  .faq-q:hover{color:var(--coral);}
  .faq-q:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .faq-q i{color:var(--mist);transition:transform .25s var(--ease),color .2s var(--ease);}
  details[open] .faq-q i{transform:rotate(45deg);color:var(--coral);}
  .faq-a{padding:0 4px 24px;font-size:15px;line-height:1.85;color:var(--sub);max-width:70ch;}

  /* ---------- CTA ---------- */
  .cta{
    margin-top:clamp(48px,6vw,96px);
    background:var(--deep);color:#E7EFEC;
    border-radius:var(--r-card);
    padding:clamp(32px,5vw,64px);
    display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(24px,4vw,48px);align-items:center;
    position:relative;overflow:hidden;
  }
  .cta::before{
    content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
    border:1px solid rgba(143,179,171,.28);border-radius:50%;
  }
  .cta::after{
    content:"";position:absolute;right:-20px;top:-20px;width:160px;height:160px;
    border:1px solid rgba(143,179,171,.18);border-radius:50%;
  }
  .cta-title{font-size:clamp(24px,3vw,36px);font-weight:800;line-height:1.3;color:#fff;letter-spacing:-.01em;}
  .cta-text{margin-top:14px;font-size:15px;line-height:1.85;color:#A9BFBA;max-width:44ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}

  /* ---------- 页脚 ---------- */
  .ly-footer{background:var(--deep);color:#CFDDD8;margin-top:clamp(56px,7vw,110px);padding:64px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:48px;}
  .footer-brand__top{font-size:22px;font-weight:800;letter-spacing:.08em;color:#fff;line-height:1.1;}
  .footer-brand__bottom{font-size:14px;letter-spacing:.18em;color:var(--mist);margin-top:6px;}
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#A9BFBA;max-width:34ch;}
  .footer-col h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.08em;margin-bottom:18px;}
  .footer-col li{font-size:14px;color:#A9BFBA;margin-bottom:11px;line-height:1.7;word-break:break-all;}
  .footer-col a{
    color:#A9BFBA;border-bottom:1px solid transparent;
    transition:color .18s var(--ease),border-color .18s var(--ease);
  }
  .footer-col a:hover{color:#fff;border-color:var(--coral);}
  .footer-col a:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
    margin-top:52px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:#8FA9A4;
  }
  .footer-bottom a{color:#CFDDD8;}
  .footer-bottom a:hover{color:#fff;border-bottom:1px solid var(--coral);}

  /* ---------- 进场动效 ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
  .reveal.in{opacity:1;transform:none;}

  /* ---------- 响应式 ---------- */
  @media (min-width:1024px) and (max-width:1279px){
    :root{--side-w:88px;}
    .ly-side{padding:28px 10px;}
    .side-brand b{font-size:14px;letter-spacing:.02em;text-align:center;}
    .side-brand span{display:none;}
    .side-link{justify-content:center;padding:14px 6px;}
    .side-link span{display:none;}
    .side-cta span{display:none;}
    .side-note{display:none;}
  }
  @media (max-width:1023px){
    :root{--side-w:0px;}
    .ly-side{display:none;}
    .top-bar{
      display:flex;position:sticky;top:0;z-index:80;
      height:64px;align-items:center;justify-content:space-between;
      padding:0 20px;background:var(--bg);border-bottom:1px solid var(--line);
    }
    .main{padding-top:24px;}
  }
  @media (max-width:900px){
    .device-grid{grid-template-columns:1fr;}
    .device-item{padding-right:0;}
    .device-item + .device-item{border-left:0;padding-left:0;}
    .steps{grid-template-columns:repeat(2,1fr);}
    .stats{grid-template-columns:repeat(2,1fr);gap:28px;}
    .cta{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  }
  @media (max-width:768px){
    .banner{aspect-ratio:4/3;}
    .banner-title{max-width:none;font-size:clamp(20px,5.4vw,26px);padding:8px 12px;}
    .row{grid-template-columns:1fr;padding:24px 0;gap:16px;}
    .row-thumb{order:-1;max-width:100%;}
    .row-num{font-size:30px;}
    .row-title{font-size:18px;}
    .row-desc{font-size:14.5px;}
    .lead{font-size:15px;}
    .sec-title{font-size:23px;}
    .ly-footer{padding:48px 0 24px;}
  }
  @media (max-width:520px){
    .steps{grid-template-columns:1fr;}
    .stats{grid-template-columns:1fr 1fr;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .cta-actions .btn{width:100%;justify-content:center;}
    .top-brand{font-size:17px;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none !important;transition:none !important;}
    .reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: article */
:root{
      --color-primary:#11403C;
      --color-deep:#0D2F2C;
      --color-accent:#E0532F;
      --color-mist:#8FB3AB;
      --color-bg:#F6F2EA;
      --color-card:#FFFDF9;
      --color-image:#EDE8DE;
      --color-ink:#1F1F1B;
      --color-muted:#6B6659;
      --color-border:#E2DCD0;
      --font-sans:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',sans-serif;
      --radius-card:4px;
      --radius-btn:2px;
      --shadow-soft:0 1px 0 rgba(17,64,60,.06);
      --shadow-hover:0 18px 40px -20px rgba(17,64,60,.28);
      --space-section:96px;
      --transition:220ms ease-out;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    html,body{margin:0;padding:0}
    body.article-page{
      background:var(--color-bg);
      color:var(--color-ink);
      font-family:var(--font-sans);
      font-size:16px;
      line-height:1.85;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    body.no-scroll{overflow:hidden}
    ::selection{background:rgba(224,83,47,.18);color:var(--color-deep)}
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{background:none;border:0}
    p{margin:0}
    ul,ol{margin:0;padding:0}
    h1,h2,h3,h4{margin:0;font-family:var(--font-sans)}
    .sr-only{
      position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
      clip:rect(0,0,0,0);white-space:nowrap;border:0;
    }
    :focus-visible{outline:2px solid var(--color-accent);outline-offset:3px}
    .wrap{
      width:100%;
      max-width:1180px;
      margin:0 auto;
    }
    .top-bar{display:none}
    .burger{
      width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
      color:var(--color-primary);border:1px solid var(--color-border);
      border-radius:2px;cursor:pointer;transition:background var(--transition),border-color var(--transition);
    }
    .burger:hover{background:var(--color-card);border-color:var(--color-mist)}
    .side-nav{
      position:fixed;inset:0 auto 0 0;width:240px;z-index:40;
      display:flex;flex-direction:column;
      padding:36px 24px 28px;
      background:var(--color-deep);color:#F6F2EA;
      border-right:1px solid rgba(246,242,234,.08);
    }
    .side-brand{display:block;line-height:1.05;margin-bottom:56px}
    .side-brand__top{
      display:block;font-size:28px;font-weight:800;letter-spacing:-.03em;color:#FFFDF9;
    }
    .side-brand__bottom{
      display:block;font-size:14px;color:#CFE0DB;margin-top:6px;letter-spacing:.08em;
    }
    .side-menu{display:flex;flex-direction:column;gap:4px;margin-top:8px}
    .side-link{
      position:relative;display:flex;align-items:center;gap:14px;
      padding:14px 12px;border-radius:2px;
      font-size:14px;font-weight:500;color:#E8EFEA;
      transition:background var(--transition),color var(--transition);
    }
    .side-link::before{
      content:"";position:absolute;left:0;top:12px;bottom:12px;width:0;
      background:var(--color-accent);transition:width 180ms ease-out;
    }
    .side-link i{width:18px;text-align:center;color:var(--color-mist);font-size:14px}
    .side-link:hover{background:rgba(255,255,255,.045);color:#FFFFFF}
    .side-link:hover::before,.side-link.is-active::before{width:2px}
    .side-link.is-active{font-weight:600;color:#FFFFFF}
    .side-foot{margin-top:auto;padding-top:24px}
    .side-foot p{font-size:12px;line-height:1.7;color:#AFC4BE;margin-top:12px}
    .side-cta{display:flex;justify-content:center;width:100%}
    .drawer{
      position:fixed;inset:0;z-index:90;background:var(--color-bg);
      padding:20px 24px 32px;display:none;flex-direction:column;
    }
    .drawer[hidden]{display:none!important}
    .drawer.is-open{display:flex}
    .drawer-top{
      display:flex;align-items:center;justify-content:space-between;
      padding-bottom:20px;border-bottom:1px solid var(--color-border);
    }
    .drawer-brand{font-size:22px;font-weight:800;letter-spacing:-.03em;color:var(--color-deep)}
    .drawer-brand span{display:block;font-size:11px;color:var(--color-muted);letter-spacing:.16em;margin-top:-2px}
    .drawer-close{
      width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
      border:1px solid var(--color-border);border-radius:2px;color:var(--color-primary);cursor:pointer;
    }
    .drawer-links{display:flex;flex-direction:column;margin-top:20px}
    .drawer-links a{
      display:flex;align-items:center;justify-content:space-between;
      padding:16px 0;border-bottom:1px solid var(--color-border);
      font-size:20px;font-weight:600;color:var(--color-primary);
    }
    .drawer-links a i{font-size:13px;color:var(--color-mist)}
    .drawer-cta{margin-top:auto;padding-top:28px}
    .page-main{
      margin-left:240px;
      padding:48px 40px 0 96px;
      min-height:70vh;
    }
    .breadcrumb{
      display:flex;align-items:center;flex-wrap:wrap;gap:8px;
      font-size:12px;line-height:1.6;color:var(--color-muted);margin-bottom:28px;
    }
    .breadcrumb a{transition:color var(--transition)}
    .breadcrumb a:hover{color:var(--color-accent)}
    .breadcrumb span[aria-current="page"]{color:var(--color-ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .article-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) minmax(240px,300px);
      gap:clamp(32px,4vw,64px);
      align-items:start;
    }
    .article-panel{min-width:0}
    .article-head{margin-bottom:30px}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      padding:4px 9px;border:1px solid rgba(143,179,171,.65);border-radius:2px;
      background:rgba(143,179,171,.08);color:var(--color-primary);
      font-size:12px;font-weight:600;letter-spacing:.05em;line-height:1.4;
    }
    .article-title{
      margin-top:18px;
      font-size:clamp(30px,4vw,46px);
      line-height:1.16;
      font-weight:800;
      letter-spacing:-.02em;
      color:var(--color-primary);
      overflow-wrap:anywhere;
    }
    .article-meta{
      display:flex;align-items:center;flex-wrap:wrap;gap:12px 22px;
      margin-top:20px;padding-bottom:20px;border-bottom:1px solid var(--color-border);
      font-size:13px;color:var(--color-muted);
    }
    .article-meta span{display:inline-flex;align-items:center;gap:7px}
    .article-meta i{color:var(--color-mist)}
    .meta-share{display:inline-flex;gap:8px;margin-left:auto}
    .share-btn{
      width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
      border:1px solid var(--color-border);border-radius:2px;color:var(--color-primary);
      cursor:pointer;transition:transform var(--transition),border-color var(--transition),background var(--transition);
    }
    .share-btn:hover{transform:translateY(-2px);border-color:var(--color-mist);background:var(--color-card)}
    .share-btn:active{transform:translateY(1px)}
    .share-status{font-size:12px;color:var(--color-accent);min-height:1.4em}
    .article-cover{
      margin:0 0 34px;border:1px solid var(--color-border);border-radius:var(--radius-card);
      overflow:hidden;background:var(--color-image);aspect-ratio:16/8.2;
    }
    .article-cover img{width:100%;height:100%;object-fit:cover;transition:transform 600ms ease}
    .article-cover:hover img{transform:scale(1.02)}
    .article-body{
      max-width:720px;
      font-size:17px;
      line-height:1.9;
      color:var(--color-ink);
      overflow-wrap:break-word;
    }
    .article-body > *:first-child{margin-top:0}
    .article-body p{margin:0 0 1.15em}
    .article-body h2{
      position:relative;
      margin:2.1em 0 .75em;
      padding-left:24px;
      font-size:32px;
      line-height:1.28;
      font-weight:700;
      color:var(--color-primary);
    }
    .article-body h2::before{
      content:"";position:absolute;left:0;top:.72em;width:12px;height:2px;background:var(--color-accent);
    }
    .article-body h3{
      margin:1.8em 0 .55em;
      font-size:22px;
      line-height:1.4;
      font-weight:600;
      color:var(--color-primary);
    }
    .article-body h4{
      margin:1.6em 0 .45em;
      font-size:18px;
      line-height:1.5;
      font-weight:600;
      color:var(--color-primary);
    }
    .article-body ul,.article-body ol{padding-left:1.25em;margin:0 0 1.2em}
    .article-body li{margin:.35em 0}
    .article-body ul{list-style:none}
    .article-body ul li{position:relative;padding-left:.35em}
    .article-body ul li::before{
      content:"";position:absolute;left:-1em;top:.88em;width:5px;height:5px;
      background:var(--color-accent);border-radius:1px;
    }
    .article-body ol{list-style:decimal}
    .article-body ol li::marker{color:var(--color-accent);font-weight:700}
    .article-body blockquote{
      margin:28px 0;padding:20px 22px;
      border-left:2px solid var(--color-primary);
      background:#F1EDE4;color:#3D3A32;
    }
    .article-body blockquote p:last-child{margin-bottom:0}
    .article-body a{color:var(--color-primary);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(17,64,60,.35)}
    .article-body a:hover{color:var(--color-accent);text-decoration-color:var(--color-accent)}
    .article-body img{
      width:auto;max-width:100%;height:auto;margin:26px auto;
      border-radius:var(--radius-card);border:1px solid var(--color-border);
    }
    .article-body figure{margin:26px 0}
    .article-body figcaption{font-size:13px;line-height:1.7;color:var(--color-muted);text-align:center;margin-top:8px}
    .article-body table{
      width:100%;border-collapse:collapse;margin:26px 0;
      border:1px solid var(--color-border);font-size:15px;
    }
    .article-body th,.article-body td{
      padding:11px 13px;border:1px solid var(--color-border);text-align:left;vertical-align:top;
    }
    .article-body th{background:var(--color-bg);font-weight:600;color:var(--color-primary)}
    .article-body hr{border:0;border-top:1px solid var(--color-border);margin:34px 0}
    .article-empty{
      padding:40px;border:1px dashed #C7D2CC;border-radius:var(--radius-card);
      text-align:center;background:rgba(255,253,249,.5);
    }
    .article-empty p{font-size:16px;color:var(--color-muted);margin-bottom:18px}
    .article-side{
      position:sticky;top:32px;
      display:flex;flex-direction:column;gap:20px;
    }
    .side-card{
      background:var(--color-card);border:1px solid var(--color-border);
      border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-soft);
    }
    .side-card h2{
      font-size:16px;line-height:1.4;font-weight:700;color:var(--color-primary);margin-bottom:14px;
    }
    .side-card p{font-size:14px;line-height:1.8;color:var(--color-muted)}
    .toc-list{display:flex;flex-direction:column;gap:2px}
    .toc-list a{
      position:relative;display:block;padding:9px 0 9px 14px;
      font-size:14px;color:var(--color-muted);transition:color var(--transition);
    }
    .toc-list a::before{
      content:"";position:absolute;left:0;top:50%;width:4px;height:4px;border-radius:50%;
      background:var(--color-border);transform:translateY(-50%);transition:background var(--transition);
    }
    .toc-list a:hover,.toc-list a.is-current{color:var(--color-accent)}
    .toc-list a.is-current::before{background:var(--color-accent)}
    .info-list{display:flex;flex-direction:column;gap:12px}
    .info-list > div{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
    .info-list dt{font-size:13px;color:var(--color-muted);flex:0 0 auto}
    .info-list dd{margin:0;font-size:13px;color:var(--color-primary);text-align:right;font-weight:500}
    .side-subscribe .badge{margin-bottom:12px}
    .side-subscribe .btn{margin-top:16px}
    .btn{
      position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
      padding:14px 26px;border-radius:var(--radius-btn);
      font-size:14px;font-weight:600;line-height:1;border:1px solid transparent;
      cursor:pointer;overflow:hidden;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),color var(--transition),border-color var(--transition);
    }
    .btn > *{position:relative;z-index:1}
    .btn i{transition:transform var(--transition)}
    .btn:hover i{transform:translateX(4px)}
    .btn-primary{background:var(--color-primary);color:#F6F2EA;border-color:var(--color-primary)}
    .btn-primary::after{
      content:"";position:absolute;inset:0;background:var(--color-accent);
      transform:translateY(101%);transition:transform 220ms ease-out;z-index:0;
    }
    .btn-primary:hover{color:#FFFFFF}
    .btn-primary:hover::after{transform:translateY(0)}
    .btn-secondary{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}
    .btn-secondary:hover{background:var(--color-card);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .btn-accent{background:var(--color-accent);color:#FFFFFF;border-color:var(--color-accent)}
    .btn-accent:hover{background:#C84728;transform:translateY(-1px)}
    .btn:active{transform:translateY(1px)}
    .btn-block{width:100%}
    .article-related{margin-top:64px;padding-top:34px;border-top:1px solid var(--color-border)}
    .section-head{
      display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:24px;
    }
    .section-kicker{
      display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
      color:var(--color-accent);margin-bottom:6px;
    }
    .section-head h2{font-size:clamp(26px,3vw,34px);line-height:1.25;font-weight:700;color:var(--color-primary)}
    .section-head > p{max-width:420px;font-size:14px;line-height:1.8;color:var(--color-muted)}
    .text-link{
      display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
      color:var(--color-primary);white-space:nowrap;
    }
    .text-link i{transition:transform var(--transition)}
    .text-link:hover{color:var(--color-accent)}
    .text-link:hover i{transform:translateX(4px)}
    .related-list{display:flex;flex-direction:column}
    .related-row{
      display:grid;grid-template-columns:44px minmax(0,1fr) 92px 20px;align-items:center;gap:18px;
      padding:18px 12px;border-top:1px solid var(--color-border);
      transition:background var(--transition),transform var(--transition),padding-left var(--transition);
    }
    .related-row:last-child{border-bottom:1px solid var(--color-border)}
    .related-row:hover{background:var(--color-card);transform:translateY(-2px);padding-left:16px}
    .related-num{font-size:24px;font-weight:700;color:var(--color-mist);line-height:1}
    .related-copy{display:flex;flex-direction:column;gap:3px;min-width:0}
    .related-copy strong{font-size:18px;line-height:1.45;font-weight:600;color:var(--color-primary)}
    .related-copy span{font-size:13px;line-height:1.7;color:var(--color-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .related-thumb{
      display:block;width:92px;aspect-ratio:16/9;border-radius:2px;overflow:hidden;
      background:var(--color-image);border:1px solid var(--color-border);
    }
    .related-thumb img{width:100%;height:100%;object-fit:cover}
    .related-row > i{color:var(--color-mist);transition:transform var(--transition),color var(--transition)}
    .related-row:hover > i{transform:translateX(4px);color:var(--color-accent)}
    .article-actions{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      margin-top:36px;padding-top:24px;border-top:1px solid var(--color-border);flex-wrap:wrap;
    }
    .faq-section{margin-top:var(--space-section);scroll-margin-top:88px}
    .faq-list{border-top:1px solid var(--color-border)}
    .faq-item{border-bottom:1px solid var(--color-border)}
    .faq-item summary{
      position:relative;list-style:none;cursor:pointer;
      padding:20px 46px 20px 0;font-size:16px;font-weight:500;line-height:1.7;color:var(--color-primary);
      transition:color var(--transition);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
      font-size:22px;font-weight:300;color:var(--color-accent);line-height:1;
      transition:transform var(--transition);
    }
    .faq-item summary:hover{color:var(--color-accent)}
    .faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
    .faq-item p{padding:0 46px 22px 0;font-size:15px;line-height:1.85;color:var(--color-muted)}
    .subscribe-section{
      display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;
      margin-top:var(--space-section);padding:56px;border-radius:var(--radius-card);
      background:var(--color-deep);color:#F6F2EA;scroll-margin-top:88px;
    }
    .subscribe-section .section-kicker{color:#F0A38E}
    .subscribe-section h2{font-size:clamp(30px,4vw,46px);line-height:1.18;font-weight:800;letter-spacing:-.02em;color:#FFFDF9}
    .subscribe-section p{font-size:14px;line-height:1.85;color:#C8D9D4;margin-top:10px;max-width:420px}
    .subscribe-form{width:100%}
    .input-line{
      display:flex;align-items:center;gap:14px;
      border-bottom:1px solid rgba(246,242,234,.42);padding-bottom:10px;
      transition:border-color var(--transition),box-shadow var(--transition);
    }
    .input-line:focus-within{border-bottom:2px solid var(--color-accent);padding-bottom:9px}
    .input-line input{
      width:100%;min-width:0;background:transparent;border:0;outline:0;
      color:#FFFDF9;font-size:16px;padding:8px 0;
    }
    .input-line input::placeholder{color:#9FB8B1}
    .input-line.has-error{border-bottom-color:var(--color-accent)}
    .form-hint{font-size:13px;line-height:1.6;min-height:1.4em;margin-top:10px;color:#F6F2EA}
    .privacy-note{font-size:12px;line-height:1.7;color:#9FB8B1;margin-top:2px}
    .ly-footer{
      background:var(--color-deep);color:#F6F2EA;
      margin-left:240px;margin-top:var(--space-section);
      padding:72px 0 28px;
    }
    .ly-footer .wrap{padding:0 40px 0 96px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px}
    .footer-brand__top{font-size:28px;font-weight:800;letter-spacing:-.03em;color:#FFFDF9;line-height:1.05}
    .footer-brand__bottom{font-size:14px;color:#CFE0DB;letter-spacing:.08em;margin-top:5px}
    .footer-brand p{font-size:13px;line-height:1.85;color:#AFC4BE;margin-top:18px;max-width:280px}
    .footer-col h3{font-size:14px;line-height:1.5;font-weight:600;color:#FFFDF9;margin-bottom:16px}
    .footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
    .footer-col a,.footer-col span{font-size:14px;line-height:1.7;color:#C8D9D4;transition:color var(--transition)}
    .footer-col a:hover{color:#FFFDF9;text-decoration:underline;text-underline-offset:4px}
    .footer-bottom{
      display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
      margin-top:56px;padding-top:22px;border-top:1px solid rgba(246,242,234,.12);
      font-size:13px;color:#AFC4BE;
    }
    .footer-bottom a{color:#DDE8E4;text-decoration:underline;text-underline-offset:4px}
    .footer-bottom a:hover{color:#FFFFFF}
    .anchor-target{display:block;position:relative;top:-24px;visibility:hidden}
    .js .reveal{opacity:0;transform:translateY(12px);transition:opacity 480ms cubic-bezier(.2,.7,.2,1),transform 480ms cubic-bezier(.2,.7,.2,1);transition-delay:var(--delay,0ms)}
    .js .reveal.is-visible{opacity:1;transform:none}
    @media (min-width:1024px) and (max-width:1279px){
      .side-nav{width:88px;padding:28px 12px}
      .side-brand{margin-bottom:32px}
      .side-brand__top{font-size:18px;text-align:center}
      .side-brand__bottom,.side-link span,.side-foot p,.side-cta span{display:none}
      .side-link{justify-content:center;padding:14px 0}
      .side-link i{font-size:18px;width:auto}
      .side-cta{padding:12px;font-size:0}
      .side-cta i{font-size:16px}
      .page-main{margin-left:88px;padding-left:64px;padding-right:32px}
      .ly-footer{margin-left:88px}
      .ly-footer .wrap{padding:0 32px 0 64px}
    }
    @media (max-width:1120px){
      .article-grid{grid-template-columns:1fr}
      .article-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
      .side-subscribe{grid-column:1 / -1}
    }
    @media (max-width:1023px){
      .top-bar{
        display:flex;position:sticky;top:0;z-index:60;height:64px;
        align-items:center;justify-content:space-between;
        padding:0 20px;background:rgba(246,242,234,.96);
        border-bottom:1px solid var(--color-border);backdrop-filter:blur(8px);
      }
      .top-brand{font-size:22px;font-weight:800;letter-spacing:-.03em;color:var(--color-deep);line-height:1}
      .top-brand span{display:block;font-size:11px;font-weight:500;color:var(--color-muted);letter-spacing:.14em;margin-top:4px}
      .side-nav{display:none}
      .page-main{margin-left:0;padding:24px 20px 0}
      .ly-footer{margin-left:0;margin-top:72px}
      .ly-footer .wrap{padding:0 20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
      .subscribe-section{grid-template-columns:1fr;padding:42px 32px;gap:26px}
    }
    @media (max-width:767px){
      .article-title{font-size:clamp(28px,8vw,38px)}
      .article-body{font-size:16px;line-height:1.9}
      .article-body h2{font-size:26px;padding-left:20px}
      .article-body h3{font-size:20px}
      .meta-share{margin-left:0;width:100%;padding-top:4px}
      .section-head{align-items:flex-start;flex-direction:column;gap:10px}
      .section-head > p{max-width:none}
      .related-row{grid-template-columns:34px minmax(0,1fr) 22px;gap:14px}
      .related-thumb{display:none}
      .related-num{font-size:20px}
      .related-copy strong{font-size:16px}
      .related-copy span{white-space:normal}
      .article-side{grid-template-columns:1fr}
      .side-subscribe{grid-column:auto}
      .faq-item summary{padding-right:38px}
      .faq-item p{padding-right:12px}
      .subscribe-section{padding:34px 22px;border-radius:2px}
      .footer-grid{grid-template-columns:1fr;gap:32px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:10px}
      .article-body table{display:block;overflow-x:auto;white-space:nowrap}
    }
    @media (max-width:520px){
      .page-main{padding-left:16px;padding-right:16px}
      .top-bar{padding:0 16px}
      .article-meta{gap:10px 16px}
      .article-cover{aspect-ratio:16/10}
      .related-row{padding:16px 4px}
      .article-actions{flex-direction:column;align-items:stretch}
      .article-actions .btn{width:100%}
      .input-line{flex-direction:column;align-items:stretch;gap:8px;border-bottom:0;padding-bottom:0}
      .input-line input{border-bottom:1px solid rgba(246,242,234,.42);padding:10px 0}
      .input-line .btn{width:100%}
      .input-line:focus-within{border-bottom:0;padding-bottom:0}
      .input-line:focus-within input{border-bottom:2px solid var(--color-accent);padding-bottom:9px}
      .ly-footer .wrap{padding:0 16px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{transition-duration:0.01ms!important;animation-duration:0.01ms!important;animation-iteration-count:1!important}
      .js .reveal{opacity:1;transform:none}
    }

/* roulang page: category2 */
:root{
    --teal:#11403C;
    --deep:#0D2F2C;
    --coral:#E0532F;
    --mist:#8FB3AB;
    --paper:#F6F2EA;
    --card:#FFFDF9;
    --ph:#EDE8DE;
    --ink:#1F1F1B;
    --muted:#6B6659;
    --line:#E2DCD0;
    --radius:4px;
    --radius-sm:2px;
    --shadow:0 1px 0 rgba(17,64,60,.06);
    --shadow-hover:0 18px 40px -20px rgba(17,64,60,.28);
    --ease:cubic-bezier(.2,.7,.2,1);
    --nav-w:240px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    font-variant-numeric:tabular-nums;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--coral);outline-offset:3px}

  .wrap{max-width:1180px;margin:0 auto;padding:0 28px}

  /* ============ 左侧竖向导航 ============ */
  .side-nav{
    position:fixed;
    top:0;left:0;bottom:0;
    width:var(--nav-w);
    background:var(--deep);
    color:#F6F2EA;
    padding:34px 22px 26px;
    display:flex;
    flex-direction:column;
    z-index:60;
    overflow-y:auto;
  }
  .side-brand{display:block;margin-bottom:38px;line-height:1.15}
  .side-brand__top{
    display:block;font-size:22px;font-weight:800;letter-spacing:.02em;color:#F6F2EA;
  }
  .side-brand__bottom{
    display:block;font-size:14px;font-weight:500;letter-spacing:.14em;color:var(--mist);margin-top:6px;
  }
  .side-menu{display:flex;flex-direction:column;gap:2px;margin-bottom:auto}
  .side-menu a{
    position:relative;
    display:block;
    padding:14px 12px 14px 16px;
    font-size:14px;
    font-weight:500;
    color:rgba(246,242,234,.76);
    border-radius:var(--radius-sm);
    transition:color .18s var(--ease),background .18s var(--ease);
  }
  .side-menu a::before{
    content:"";
    position:absolute;left:0;top:12px;bottom:12px;
    width:0;background:var(--coral);
    transition:width .18s var(--ease);
  }
  .side-menu a:hover{color:#FFFDF9;background:rgba(143,179,171,.10)}
  .side-menu a:hover::before{width:2px}
  .side-menu a[aria-current="page"]{color:#FFFDF9;font-weight:600;background:rgba(143,179,171,.14)}
  .side-menu a[aria-current="page"]::before{width:2px}
  .side-foot{border-top:1px solid rgba(143,179,171,.24);padding-top:20px;margin-top:26px}
  .side-foot p{font-size:12px;color:rgba(246,242,234,.56);line-height:1.7;margin-top:12px}

  .btn{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:14px 26px;
    border-radius:var(--radius-sm);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    overflow:hidden;
    transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
  }
  .btn i{transition:transform .22s var(--ease)}
  .btn-primary{background:var(--teal);color:#FFFDF9}
  .btn-primary::after{
    content:"";position:absolute;inset:auto 0 0 0;height:100%;
    background:var(--coral);
    transform:translateY(101%);
    transition:transform .22s ease-out;
    z-index:0;
  }
  .btn-primary span,.btn-primary i{position:relative;z-index:1}
  .btn-primary:hover::after{transform:translateY(0)}
  .btn-primary:hover{color:#fff}
  .btn-primary:hover i{transform:translateX(4px)}
  .btn-ghost{background:transparent;color:var(--teal);border:1px solid var(--teal)}
  .btn-ghost:hover{background:var(--card);transform:translateY(-2px)}
  .btn-ghost:hover i{transform:translateX(4px)}
  .btn:active{transform:translateY(1px)}
  .btn-block{width:100%;justify-content:center}
  .side-foot .btn{padding:12px 18px;font-size:14px;background:var(--coral);color:#fff}
  .side-foot .btn::after{background:#F6F2EA}
  .side-foot .btn:hover{color:var(--deep)}

  /* ============ 移动端顶栏 ============ */
  .top-bar{display:none}
  .drawer{
    position:fixed;inset:0;z-index:90;
    background:var(--paper);
    display:flex;flex-direction:column;
    padding:20px 24px 30px;
    overflow-y:auto;
  }
  .drawer[hidden]{display:none}
  .drawer__head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
  .drawer__brand{font-size:19px;font-weight:800;color:var(--teal);line-height:1.2}
  .drawer__brand span{display:block;font-size:12px;font-weight:500;letter-spacing:.12em;color:var(--muted);margin-top:4px}
  .drawer__close{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);color:var(--teal)}
  .drawer nav{display:flex;flex-direction:column;margin:18px 0 auto}
  .drawer nav a{
    padding:16px 0;font-size:20px;font-weight:500;color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer nav a[aria-current="page"]{color:var(--coral);font-weight:600}
  .drawer .btn{margin-top:26px}

  /* ============ 内容外壳 ============ */
  .shell{margin-left:var(--nav-w);min-height:100vh}
  main{display:block}

  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);padding:34px 0 0}
  .crumb a{color:var(--muted);transition:color .18s var(--ease)}
  .crumb a:hover{color:var(--coral)}
  .crumb .sep{color:#BFB8A8}
  .crumb .now{color:var(--ink)}

  /* ============ Hero ============ */
  .hero{padding:26px 0 0}
  .eyebrow{
    display:inline-flex;align-items:center;gap:10px;
    font-size:12px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;margin-bottom:20px;
  }
  .eyebrow::before{content:"";width:26px;height:1px;background:var(--coral)}
  .hero h1{
    font-size:clamp(32px,4.4vw,58px);
    font-weight:800;
    line-height:1.1;
    letter-spacing:-.02em;
    color:var(--teal);
    max-width:16em;
  }
  .hero .lead{
    margin-top:22px;
    max-width:36em;
    font-size:16px;
    line-height:1.85;
    color:var(--muted);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 14px;
    font-size:13px;
    color:var(--teal);
    border:1px solid var(--mist);
    border-radius:var(--radius-sm);
    background:transparent;
  }
  .chip i{font-size:11px;color:var(--coral)}

  /* ============ 马赛克网格 ============ */
  .mosaic{
    display:grid;
    grid-template-columns:1.55fr 1fr;
    grid-template-rows:repeat(2,minmax(0,1fr));
    gap:16px;
    height:clamp(340px,44vw,520px);
    margin-top:52px;
  }
  .mosaic figure{
    position:relative;margin:0;overflow:hidden;
    border-radius:var(--radius);
    border:1px solid var(--line);
    background:var(--ph);
  }
  .mosaic__big{grid-row:span 2}
  .mosaic img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
  .mosaic figure:hover img{transform:scale(1.03)}
  .mosaic figcaption{
    position:absolute;left:0;right:0;bottom:0;
    padding:26px 18px 14px;
    font-size:13px;color:#F6F2EA;
    background:linear-gradient(to top,rgba(13,47,44,.86),rgba(13,47,44,0));
    display:flex;align-items:center;gap:10px;
  }
  .mosaic figcaption span{
    font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--mist);
  }

  /* ============ 板块通用 ============ */
  .section{padding:96px 0 0}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
  .section-head h2{
    font-size:clamp(24px,2.8vw,34px);
    font-weight:700;line-height:1.25;color:var(--teal);letter-spacing:-.01em;
  }
  .section-head h2::before{
    content:"";display:block;width:34px;height:2px;background:var(--coral);margin-bottom:16px;
  }
  .section-head p{font-size:14px;color:var(--muted);max-width:32em}

  /* ============ 2×2 图文卡 ============ */
  .card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .fcard{
    display:flex;flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
    transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
  }
  .fcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--mist)}
  .fcard__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--ph)}
  .fcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
  .fcard:hover .fcard__media img{transform:scale(1.03)}
  .fcard__no{
    position:absolute;top:12px;left:14px;
    font-size:12px;font-weight:700;letter-spacing:.08em;
    color:#FFFDF9;background:rgba(13,47,44,.7);
    padding:3px 9px;border-radius:var(--radius-sm);
  }
  .fcard__body{padding:22px 22px 26px}
  .badge{
    display:inline-block;
    font-size:12px;letter-spacing:.08em;
    color:var(--teal);
    border:1px solid var(--mist);
    border-radius:var(--radius-sm);
    padding:2px 9px;
    margin-bottom:12px;
  }
  .fcard__body h3{font-size:20px;font-weight:600;line-height:1.4;color:var(--teal);margin-bottom:10px}
  .fcard__body p{font-size:14.5px;line-height:1.75;color:var(--muted)}
  .fcard__link{
    display:inline-flex;align-items:center;gap:8px;margin-top:16px;
    font-size:13.5px;font-weight:600;color:var(--teal);
  }
  .fcard__link i{transition:transform .22s var(--ease)}
  .fcard:hover .fcard__link i{transform:translateX(4px)}
  .fcard__link::after{
    content:"";position:absolute;inset:0;
  }

  /* ============ 浏览路径 ============ */
  .flow-wrap{display:grid;grid-template-columns:0.85fr 1.6fr;gap:56px;align-items:start}
  .flow-aside p{font-size:15px;color:var(--muted);line-height:1.85}
  .flow-aside .tagline{
    display:inline-block;margin-top:18px;font-size:13px;color:var(--teal);
    border-bottom:2px solid var(--coral);padding-bottom:4px;
  }
  .steps{position:relative;padding-left:34px;border-left:1px solid var(--line)}
  .steps li{position:relative;padding-bottom:36px}
  .steps li:last-child{padding-bottom:0}
  .steps li::before{
    content:"";position:absolute;left:-39px;top:11px;
    width:9px;height:9px;border-radius:50%;
    background:var(--card);border:2px solid var(--coral);
  }
  .steps h3{font-size:18px;font-weight:600;color:var(--teal);margin-bottom:8px;display:flex;gap:12px;align-items:baseline}
  .steps h3 em{font-style:normal;font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--mist)}
  .steps p{font-size:15px;color:var(--muted);line-height:1.8;max-width:34em}

  /* ============ 要点标签区 ============ */
  .points{
    margin-top:26px;
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    gap:1px;background:var(--line);
    border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  }
  .points div{background:var(--card);padding:26px 20px}
  .points strong{display:block;font-size:15px;font-weight:600;color:var(--teal);margin-bottom:6px}
  .points span{font-size:13.5px;color:var(--muted);line-height:1.7}

  /* ============ FAQ ============ */
  .faq{max-width:820px}
  .faq-item{border-top:1px solid var(--line)}
  .faq-item:last-child{border-bottom:1px solid var(--line)}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    width:100%;text-align:left;padding:22px 0;
    font-size:16px;font-weight:500;color:var(--ink);
    transition:color .18s var(--ease);
  }
  .faq-q:hover{color:var(--teal)}
  .faq-q i{font-size:13px;color:var(--coral);transition:transform .3s var(--ease)}
  .faq-item.open .faq-q{color:var(--teal);font-weight:600}
  .faq-item.open .faq-q i{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
  .faq-a p{font-size:15px;line-height:1.85;color:var(--muted);padding:0 0 24px;max-width:38em}

  /* ============ CTA ============ */
  .cta{margin-top:96px;background:var(--deep);color:#F6F2EA}
  .cta__inner{
    display:grid;grid-template-columns:1.3fr 1fr;gap:44px;align-items:center;
    padding:64px 0;
  }
  .cta h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;letter-spacing:-.01em}
  .cta p{font-size:15px;color:rgba(246,242,234,.7);margin-top:14px;max-width:30em}
  .cta__actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
  .cta .btn-primary{background:var(--coral);color:#fff}
  .cta .btn-primary::after{background:#F6F2EA}
  .cta .btn-primary:hover{color:var(--deep)}
  .cta .btn-ghost{color:#F6F2EA;border-color:rgba(246,242,234,.5)}
  .cta .btn-ghost:hover{background:rgba(246,242,234,.1);color:#FFFDF9}

  /* ============ 页脚 ============ */
  .ly-footer{background:var(--deep);color:#F6F2EA;padding:64px 0 26px;font-size:14px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px}
  .footer-brand__top{font-size:22px;font-weight:800;letter-spacing:.02em}
  .footer-brand__bottom{font-size:13px;letter-spacing:.14em;color:var(--mist);margin-top:6px}
  .footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.8;color:rgba(246,242,234,.64);max-width:24em}
  .footer-col h3{font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--mist);margin-bottom:16px}
  .footer-col li{margin-bottom:11px}
  .footer-col a,.footer-col span{font-size:13.5px;color:rgba(246,242,234,.76);transition:color .18s var(--ease)}
  .footer-col a:hover{color:#FFFDF9;text-decoration:underline;text-underline-offset:4px}
  .footer-bottom{
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(143,179,171,.24);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:12.5px;color:rgba(246,242,234,.56);
  }
  .footer-bottom a:hover{color:#FFFDF9;text-decoration:underline;text-underline-offset:4px}

  /* ============ 动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
  .reveal.in{opacity:1;transform:none}

  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important}
    .reveal{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }

  /* ============ 响应式 ============ */
  @media (min-width:1024px) and (max-width:1279px){
    :root{--nav-w:200px}
    .side-nav{padding:28px 16px 22px}
    .side-brand__top{font-size:19px}
    .side-brand__bottom{font-size:12.5px;letter-spacing:.1em}
  }

  @media (max-width:1023px){
    .side-nav{display:none}
    .shell{margin-left:0;padding-top:64px}
    .top-bar{
      display:flex;align-items:center;justify-content:space-between;
      position:sticky;top:0;z-index:70;
      height:64px;padding:0 20px;
      background:rgba(246,242,234,.96);
      backdrop-filter:blur(8px);
      border-bottom:1px solid var(--line);
    }
    .top-brand{font-size:18px;font-weight:800;color:var(--teal);letter-spacing:.01em}
    .top-brand span{font-size:14px;font-weight:600;margin-left:4px}
    .burger{
      width:42px;height:42px;display:grid;place-items:center;
      border:1px solid var(--line);border-radius:var(--radius-sm);
      color:var(--teal);font-size:16px;
      transition:background .18s var(--ease),border-color .18s var(--ease);
    }
    .burger:hover{background:var(--card);border-color:var(--mist)}
    .wrap{padding:0 22px}
    .section{padding:64px 0 0}
    .mosaic{height:auto;grid-template-columns:1fr 1fr;grid-template-rows:auto auto;}
    .mosaic__big{grid-column:span 2;grid-row:auto;aspect-ratio:16/9}
    .mosaic figure{aspect-ratio:4/3}
    .card-grid{grid-template-columns:1fr}
    .flow-wrap{grid-template-columns:1fr;gap:32px}
    .points{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta__inner{grid-template-columns:1fr;gap:28px;padding:52px 0}
    .cta__actions{justify-content:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  }

  @media (max-width:639px){
    body{font-size:15px}
    .wrap{padding:0 18px}
    .crumb{padding-top:24px}
    .hero{padding-top:18px}
    .hero .lead{margin-top:18px;font-size:15px}
    .hero-actions{margin-top:24px}
    .hero-actions .btn{width:100%;justify-content:center}
    .chip-row{margin-top:24px}
    .mosaic{margin-top:32px;grid-template-columns:1fr;gap:12px}
    .mosaic__big{grid-column:auto}
    .mosaic figure{aspect-ratio:16/9}
    .section{padding:56px 0 0}
    .section-head{margin-bottom:26px}
    .points{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .cta{margin-top:56px}
    .footer-bottom{flex-direction:column}
    .faq-q{font-size:15px;gap:14px}
  }

/* roulang page: category3 */
:root{
  --ink:#1F1F1B;
  --ink-soft:#6B6659;
  --teal:#11403C;
  --teal-deep:#0D2F2C;
  --coral:#E0532F;
  --mist:#8FB3AB;
  --paper:#F6F2EA;
  --card:#FFFDF9;
  --line:#E2DCD0;
  --img:#EDE8DE;
  --radius:4px;
  --shadow:0 1px 0 rgba(17,64,60,.06);
  --shadow-lift:0 18px 40px -20px rgba(17,64,60,.28);
  --ease:cubic-bezier(.2,.7,.2,1);
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'PingFang SC','Hiragino Sans GB','Source Han Sans SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--coral);outline-offset:3px;}
::selection{background:rgba(224,83,47,.18);}

.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 40px;}

/* ---------- 左侧竖导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--teal-deep);color:var(--paper);
  display:flex;flex-direction:column;
  padding:38px 26px 30px;
  z-index:40;
}
.side-brand{display:block;margin-bottom:44px;}
.side-brand b{display:block;font-size:26px;font-weight:800;letter-spacing:.06em;line-height:1.2;color:#F6F2EA;transition:color .18s ease;}
.side-brand span{display:block;margin-top:6px;font-size:13px;letter-spacing:.16em;color:var(--mist);}
.side-brand:hover b{color:#fff;}
.side-menu{display:flex;flex-direction:column;gap:2px;}
.side-menu a{
  position:relative;display:block;padding:14px 0 14px 16px;
  font-size:14px;font-weight:500;color:rgba(246,242,234,.76);
  transition:color .18s ease,padding-left .18s ease;
}
.side-menu a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:0;
  background:var(--coral);transition:width .18s ease;
}
.side-menu a:hover{color:#fff;}
.side-menu a:hover::before{width:2px;}
.side-menu a[aria-current="page"]{color:#fff;font-weight:600;}
.side-menu a[aria-current="page"]::before{width:2px;}
.side-foot{margin-top:auto;padding-top:32px;}
.side-foot .side-cta{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(143,179,171,.55);color:#F6F2EA;
  padding:11px 18px;border-radius:2px;font-size:13.5px;font-weight:600;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.side-foot .side-cta:hover{background:var(--coral);border-color:var(--coral);color:#fff;transform:translateY(-2px);}
.side-foot .side-cta:active{transform:translateY(1px);}
.side-foot p{margin-top:16px;font-size:12.5px;line-height:1.7;color:rgba(246,242,234,.52);}

/* ---------- 移动端顶栏 ---------- */
.top-bar{
  display:none;position:sticky;top:0;height:64px;z-index:50;
  background:var(--paper);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 20px;
}
.top-brand{font-size:19px;font-weight:800;letter-spacing:.04em;color:var(--teal);}
.top-brand span{margin-left:5px;font-size:13px;font-weight:600;color:var(--ink-soft);letter-spacing:.02em;}
.burger{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:2px;
  color:var(--teal);font-size:17px;cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.burger:hover{background:var(--card);border-color:var(--mist);}
.burger:active{transform:translateY(1px);}

.drawer{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  padding:26px 24px 36px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s var(--ease);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-brand{font-size:20px;font-weight:800;color:var(--teal);letter-spacing:.04em;}
.drawer-brand span{display:block;font-size:12.5px;font-weight:600;color:var(--ink-soft);letter-spacing:.14em;margin-top:2px;}
.drawer-close{
  width:42px;height:42px;border:1px solid var(--line);border-radius:2px;background:transparent;
  color:var(--teal);font-size:18px;cursor:pointer;transition:background .2s ease;
}
.drawer-close:hover{background:var(--card);}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{
  padding:18px 2px;font-size:20px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);transition:color .18s ease,padding-left .18s ease;
}
.drawer-nav a:hover{color:var(--coral);padding-left:6px;}
.drawer-nav a[aria-current="page"]{color:var(--teal);}
.drawer-cta{margin-top:auto;padding-top:28px;}
body.nav-open{overflow:hidden;}

/* ---------- 页面骨架 ---------- */
.page-shell{min-height:100vh;}
@media (min-width:1024px){.page-shell{margin-left:var(--side-w);}}
@media (min-width:1024px) and (max-width:1279px){
  .side-nav{width:88px;padding:28px 12px 22px;}
  .side-brand b{font-size:16px;letter-spacing:.02em;}
  .side-brand span{font-size:10px;letter-spacing:.06em;}
  .side-menu a{font-size:12px;padding:12px 0 12px 10px;line-height:1.5;}
  .side-foot .side-cta{padding:9px 8px;font-size:11.5px;justify-content:center;}
  .side-foot p{font-size:10.5px;}
  .page-shell{margin-left:88px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .top-bar{display:flex;}
  .page-shell{margin-left:0;padding-top:0;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:36px 0 0;font-size:13px;color:var(--ink-soft);
}
.breadcrumb a{color:var(--ink-soft);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--coral);}
.breadcrumb .sep{color:#C3BCAC;}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ---------- 双栏主体 ---------- */
.two-col{
  display:grid;grid-template-columns:minmax(0,40fr) minmax(0,60fr);
  gap:72px;align-items:start;padding-top:36px;padding-bottom:20px;
}
@media (max-width:1023px){.two-col{grid-template-columns:1fr;gap:44px;}}
.sticky-col{position:sticky;top:44px;}
@media (max-width:1023px){.sticky-col{position:static;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--coral);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--coral);display:inline-block;}
h1{
  margin:18px 0 20px;
  font-size:clamp(34px,4.2vw,52px);
  line-height:1.14;font-weight:800;letter-spacing:-.02em;color:var(--teal);
}
.lead{font-size:16px;line-height:1.9;color:var(--ink-soft);max-width:38em;}

.anchor-nav{margin:30px 0 28px;border-top:1px solid var(--line);}
.anchor-nav a{
  display:flex;align-items:center;gap:14px;
  padding:13px 0;border-bottom:1px solid var(--line);
  font-size:15px;font-weight:500;color:var(--ink);
  transition:color .18s ease,padding-left .18s ease;
}
.anchor-nav a .num{font-size:12.5px;font-weight:700;color:var(--mist);letter-spacing:.08em;}
.anchor-nav a i{margin-left:auto;font-size:12px;color:#BFB9AA;transition:transform .18s ease,color .18s ease;}
.anchor-nav a:hover{color:var(--coral);padding-left:6px;}
.anchor-nav a:hover .num{color:var(--coral);}
.anchor-nav a:hover i{transform:translateX(4px);color:var(--coral);}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:2px;font-size:15px;font-weight:600;
  cursor:pointer;overflow:hidden;transition:color .22s ease,border-color .22s ease,transform .18s ease,background .22s ease;
}
.btn-primary{background:var(--teal);color:#F6F2EA;border:1px solid var(--teal);}
.btn-primary::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:100%;
  background:var(--coral);transform:translateY(101%);transition:transform .22s ease-out;z-index:0;
}
.btn-primary > *{position:relative;z-index:1;}
.btn-primary:hover{color:#fff;border-color:var(--coral);}
.btn-primary:hover::after{transform:translateY(0);}
.btn-primary:hover i{transform:translateX(4px);}
.btn-primary i{transition:transform .22s ease-out;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--teal);border:1px solid var(--teal);
}
.btn-ghost:hover{background:var(--card);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost i{transition:transform .22s ease-out;}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-light{
  display:inline-flex;align-items:center;gap:10px;padding:13px 24px;border-radius:2px;
  background:#F6F2EA;color:var(--teal-deep);font-size:15px;font-weight:600;border:1px solid #F6F2EA;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-light:hover{background:var(--coral);border-color:var(--coral);color:#fff;transform:translateY(-2px);}
.btn-light:active{transform:translateY(1px);}

/* ---------- 图片容器 ---------- */
.media{
  position:relative;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--img);box-shadow:var(--shadow);
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.media:hover img{transform:scale(1.03);}
.media-4x3{aspect-ratio:4/3;margin-top:34px;}
.media-16x9{aspect-ratio:16/9;}

/* ---------- 右侧分节 ---------- */
.section-block{
  padding-bottom:42px;margin-bottom:42px;border-bottom:1px solid var(--line);
  scroll-margin-top:24px;
}
.section-block:last-of-type{border-bottom:0;}
.block-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.22em;color:var(--coral);
}
.section-block h2{
  margin:10px 0 16px;font-size:clamp(23px,2.4vw,30px);
  font-weight:700;line-height:1.3;color:var(--teal);letter-spacing:-.01em;
}
.section-block p{font-size:16px;line-height:1.9;color:var(--ink-soft);max-width:40em;}
.section-block p + p{margin-top:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border:1px solid var(--mist);border-radius:2px;
  font-size:13px;color:#2C5A54;background:rgba(143,179,171,.10);
  transition:background .2s ease,border-color .2s ease;
}
.tag:hover{background:rgba(143,179,171,.22);border-color:#6E9A90;}
.tag::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mist);}

/* ---------- FAQ ---------- */
.faq-section{padding:8px 0 0;}
.section-head{margin-bottom:18px;}
.section-head h2{
  margin-top:8px;font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--teal);letter-spacing:-.01em;
}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-soft);max-width:42em;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 2px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;color:var(--ink);transition:color .18s ease,padding-left .18s ease;
}
.faq-btn:hover{color:var(--teal);padding-left:6px;}
.faq-btn i{flex:0 0 auto;font-size:14px;color:var(--teal);transition:transform .25s ease,color .2s ease;}
.faq-btn[aria-expanded="true"]{color:var(--teal);font-weight:600;}
.faq-btn[aria-expanded="true"] i{transform:rotate(45deg);color:var(--coral);}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .32s var(--ease);}
.faq-panel p{padding:0 2px 24px;font-size:15px;line-height:1.88;color:var(--ink-soft);max-width:44em;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  margin-top:56px;background:var(--teal-deep);color:#F6F2EA;border-radius:var(--radius);
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(143,179,171,.22);
}
.cta-bar::after{
  content:"";position:absolute;right:-10px;top:-6px;width:120px;height:120px;border-radius:50%;
  border:1px solid rgba(143,179,171,.16);
}
.cta-bar h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:#F6F2EA;letter-spacing:-.01em;}
.cta-bar p{margin-top:10px;font-size:14.5px;line-height:1.8;color:rgba(246,242,234,.72);max-width:36em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-actions .btn-line{
  display:inline-flex;align-items:center;gap:10px;padding:13px 24px;border-radius:2px;
  border:1px solid rgba(246,242,234,.45);color:#F6F2EA;font-size:15px;font-weight:600;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.cta-actions .btn-line:hover{background:rgba(246,242,234,.10);border-color:#F6F2EA;transform:translateY(-2px);}
.cta-actions .btn-line:active{transform:translateY(1px);}

/* ---------- 页脚 ---------- */
.ly-footer{background:var(--teal-deep);color:#F6F2EA;margin-top:96px;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;}
.footer-brand__top{font-size:24px;font-weight:800;letter-spacing:.06em;color:#F6F2EA;}
.footer-brand__bottom{margin-top:4px;font-size:13px;letter-spacing:.16em;color:var(--mist);}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.8;color:rgba(246,242,234,.62);max-width:24em;}
.footer-col h3{font-size:14px;font-weight:700;letter-spacing:.06em;color:#F6F2EA;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:13.5px;color:rgba(246,242,234,.66);transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,242,234,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,242,234,.6);
}
.footer-bottom a{color:rgba(246,242,234,.8);transition:color .18s ease;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}

@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .cta-bar{padding:32px 24px;}
  .ly-footer{margin-top:64px;padding-top:48px;}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式细节 ---------- */
@media (max-width:1023px){
  .wrap{padding:0 28px;}
  h1{font-size:clamp(30px,6vw,42px);}
}
@media (max-width:768px){
  body{font-size:15px;}
  .wrap{padding:0 20px;}
  .breadcrumb{padding-top:24px;}
  .two-col{padding-top:26px;gap:38px;}
  .lead{font-size:15px;}
  .section-block p{font-size:15px;}
  .faq-btn{font-size:15px;padding:18px 2px;}
  .faq-panel p{font-size:14.5px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-line{flex:1 1 auto;justify-content:center;}
  .btn-primary,.btn-ghost{padding:13px 20px;font-size:14.5px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}