/* roulang page: index */
:root{
  --ink:#123F35;
  --ink-deep:#0B2A23;
  --terra:#C2593A;
  --terra-soft:#E2A184;
  --sand:#F6F2EA;
  --line:#E4DDD1;
  --txt:#23282A;
  --txt-soft:#6F6A61;
  --muted:#ADA69B;
  --ok:#2F6B4F;
  --err:#B0413A;
  --r-card:8px;
  --r-btn:4px;
  --sh-card:0 12px 32px rgba(18,63,53,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--txt);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.nav-locked{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{font-family:"Noto Serif SC",serif;font-weight:700;letter-spacing:-.01em;line-height:1.15;margin:0;color:var(--txt);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--terra);outline-offset:2px;border-radius:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
.section{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.6vw,38px);position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--ink);border-radius:2px;}
.section-head .lead{font-size:15px;color:var(--txt-soft);max-width:520px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;color:var(--terra);font-weight:700;margin-bottom:12px;text-transform:uppercase;}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;transition:background-color .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease),transform .26s var(--ease);}
.btn svg{transition:transform .26s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-deep);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:700;font-size:15px;padding:4px 0;position:relative;}
.btn-text::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);}
.btn-text:hover::after{transform:scaleX(1);}
.btn-text:hover svg{transform:translateX(4px);}
.btn-text svg{transition:transform .26s var(--ease);}

/* ---------- badge ---------- */
.badge{display:inline-block;background:var(--sand);border:1px solid var(--line);color:var(--ink);font-size:11px;letter-spacing:.06em;padding:3px 8px;border-radius:2px;font-weight:700;}
.badge-terra{background:var(--terra);border-color:var(--terra);color:#fff;}
.badge-ink{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- header / nav ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(246,242,234,.86);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:height .28s var(--ease),background-color .28s var(--ease),border-color .28s var(--ease);}
.site-header .header-inner{height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;transition:height .28s var(--ease);}
.site-header.is-scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line);}
.site-header.is-scrolled .header-inner{height:60px;}
.nav-side{display:flex;align-items:center;gap:30px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{font-size:15px;font-weight:500;color:var(--txt-soft);position:relative;padding:6px 0;transition:color .24s var(--ease);}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--terra);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);}
.nav-link:hover{color:var(--txt);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--txt);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.logo{display:flex;align-items:center;gap:10px;justify-self:center;}
.logo-mark{width:20px;height:20px;background:var(--ink);border-radius:2px;position:relative;flex:0 0 auto;}
.logo-mark::after{content:"";position:absolute;right:3px;bottom:3px;width:0;height:0;border-left:7px solid var(--terra);border-top:7px solid transparent;}
.logo-word{font-family:"Noto Serif SC",serif;font-weight:900;font-size:19px;letter-spacing:-.01em;color:var(--txt);white-space:nowrap;}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink);}
.nav-toggle svg{width:20px;height:20px;}

.mobile-drawer{position:fixed;inset:0;background:var(--sand);z-index:80;display:none;flex-direction:column;padding:0 var(--gutter) 32px;}
.mobile-drawer.is-open{display:flex;}
.drawer-top{height:60px;display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-btn);}
.drawer-links{margin-top:12px;border-top:1px solid var(--line);}
.drawer-links a{display:block;font-size:20px;line-height:56px;border-bottom:1px solid var(--line);font-family:"Noto Serif SC",serif;font-weight:700;}
.drawer-links a.is-active{color:var(--terra);}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--txt-soft);}
.drawer-foot .btn{width:100%;margin-top:16px;}

/* ---------- hero ---------- */
.hero{padding:112px 0 56px;background:var(--sand);}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center;}
.hero h1{font-size:clamp(34px,4.4vw,58px);font-weight:900;margin:16px 0 18px;color:var(--ink-deep);}
.hero-sub{font-size:17px;color:var(--txt-soft);max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 32px;}
.hero-stats{display:flex;flex-wrap:wrap;align-items:center;gap:0;border-top:1px solid var(--line);padding-top:20px;}
.hero-stats .stat{padding:0 24px;border-left:1px solid var(--line);}
.hero-stats .stat:first-child{border-left:0;padding-left:0;}
.stat .num{font-family:"DM Serif Display",serif;font-size:32px;line-height:1.1;color:var(--ink);}
.stat .lbl{font-size:13px;color:var(--txt-soft);}
.hero-figure{margin:0;border-radius:var(--r-card);overflow:hidden;aspect-ratio:4/5;background:#e8e2d6;}
.hero-figure img{width:100%;height:100%;object-fit:cover;animation:heroZoom 1.6s var(--ease) both;}
@keyframes heroZoom{from{transform:scale(1.06);opacity:.6;}to{transform:scale(1);opacity:1;}}

/* ---------- quick bar ---------- */
.quick-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.quick-item{display:flex;align-items:center;gap:14px;padding:22px 24px;border-left:1px solid var(--line);transition:background-color .26s var(--ease),color .26s var(--ease);}
.quick-item:first-child{border-left:0;}
.quick-item:hover{background:#fff;}
.quick-item .idx{font-family:"DM Serif Display",serif;font-size:20px;color:var(--terra);}
.quick-item .name{font-weight:500;}
.quick-item .arrow{margin-left:auto;color:var(--muted);transition:transform .26s var(--ease),color .26s var(--ease);}
.quick-item:hover .arrow{transform:translateX(4px);color:var(--ink);}

/* ---------- compare table ---------- */
.cmp-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
table.cmp{width:100%;border-collapse:collapse;}
table.cmp th,table.cmp td{padding:16px 18px;border-bottom:1px solid var(--line);text-align:center;font-size:15px;}
table.cmp thead th{font-size:14px;color:var(--txt-soft);font-weight:500;position:relative;}
table.cmp th:first-child,table.cmp td:first-child{text-align:left;font-weight:500;}
table.cmp tbody tr{transition:background-color .2s var(--ease);}
table.cmp tbody tr:hover{background:#FBF8F3;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp .col-rec{background:rgba(18,63,53,.04);}
table.cmp thead .col-rec{border-top:3px solid var(--terra);color:var(--ink);font-weight:700;}
table.cmp thead .rec-tag{position:absolute;top:-1px;left:50%;transform:translateX(-50%);background:var(--terra);color:#fff;font-size:11px;letter-spacing:.06em;padding:2px 8px;border-radius:0 0 2px 2px;}
.mark-ok,.mark-no{display:inline-block;width:16px;height:16px;position:relative;vertical-align:-3px;}
.mark-ok::after{content:"";position:absolute;left:3px;top:0;width:6px;height:11px;border:2px solid var(--ink);border-top:0;border-left:0;transform:rotate(40deg);}
.mark-no::before,.mark-no::after{content:"";position:absolute;left:7px;top:1px;width:1.5px;height:14px;background:#C9C2B6;}
.mark-no::before{transform:rotate(45deg);}
.mark-no::after{transform:rotate(-45deg);}
.cmp-cards{display:none;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;}
.cmp-card{flex:0 0 240px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;}
.cmp-card h3{font-size:17px;margin-bottom:4px;}
.cmp-card .price{font-size:13px;color:var(--txt-soft);margin-bottom:14px;}
.cmp-card ul{border-top:1px solid var(--line);padding-top:12px;}
.cmp-card li{display:flex;gap:10px;align-items:flex-start;font-size:14px;padding:6px 0;color:var(--txt-soft);}
.cmp-card li b{font-weight:500;color:var(--txt);}

/* ---------- level cards ---------- */
.level-grid{display:grid;grid-template-columns:1fr 1.12fr 1fr;gap:24px;align-items:stretch;}
.level-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;display:flex;flex-direction:column;transition:transform .28s var(--ease),box-shadow .28s var(--ease);}
.level-card:hover{transform:translateY(-2px);box-shadow:var(--sh-card);}
.level-card h3{font-size:22px;margin-bottom:8px;}
.level-card .tagline{font-size:15px;color:var(--txt-soft);margin-bottom:18px;}
.level-card ul{margin-bottom:22px;}
.level-card li{display:flex;gap:10px;align-items:flex-start;font-size:15px;padding:7px 0;color:var(--txt-soft);}
.level-card .foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.level-card .price{font-family:"DM Serif Display",serif;font-size:22px;color:var(--ink);}
.level-card.is-dark{background:var(--ink);border-color:var(--ink-deep);color:#F3EFE6;}
.level-card.is-dark h3,.level-card.is-dark .price{color:#fff;}
.level-card.is-dark .tagline,.level-card.is-dark li{color:rgba(243,239,230,.78);}
.level-card.is-dark .foot{border-top-color:rgba(255,255,255,.18);}
.level-card.is-dark .mark-ok::after{border-color:var(--terra-soft);}
.level-card.is-dark .btn-primary{background:var(--terra);}
.level-card.is-dark .btn-primary:hover{background:#A8482E;}

/* ---------- exclusive ---------- */
.excl-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start;}
.excl-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.excl-cards .card:nth-child(2n){transform:translateY(24px);}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform .28s var(--ease),box-shadow .28s var(--ease);}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-card);}
.card-media{aspect-ratio:16/10;overflow:hidden;position:relative;background:#e8e2d6;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;color:var(--txt-soft);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px;font-size:13px;color:var(--txt-soft);}
.lock{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--terra);font-weight:700;}
.card-link{position:absolute;inset:0;}

/* ---------- news grid ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--txt-soft);text-align:center;padding:24px;}
.empty-state svg{width:32px;height:32px;color:var(--muted);}
.pager{display:flex;gap:10px;justify-content:center;margin-top:36px;}
.pager a,.pager span{width:40px;height:40px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-btn);font-size:14px;color:var(--txt-soft);transition:all .24s var(--ease);}
.pager a:hover{border-color:var(--ink);color:var(--ink);}
.pager .is-current{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:40px;align-items:start;}
.faq-sticky{position:sticky;top:96px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;text-align:left;padding:20px 0;font-size:17px;font-weight:500;color:var(--txt);transition:color .24s var(--ease);}
.faq-q:hover{color:var(--ink);}
.faq-q .no{font-family:"DM Serif Display",serif;font-size:19px;color:var(--terra);min-width:28px;}
.faq-q .plus{margin-left:auto;width:16px;height:16px;position:relative;flex:0 0 auto;transition:transform .26s var(--ease);}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--ink);}
.faq-q .plus::before{left:0;right:0;top:7px;height:1.5px;}
.faq-q .plus::after{top:0;bottom:0;left:7px;width:1.5px;}
.faq-item.is-open .faq-q{color:var(--ink);font-weight:700;}
.faq-item.is-open .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease),opacity .26s var(--ease);opacity:0;}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 0 20px 44px;font-size:15px;color:var(--txt-soft);}

/* ---------- cta ---------- */
.cta-band{background:var(--ink-deep);color:#F3EFE6;padding:72px 0;}
.cta-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px;align-items:start;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,36px);margin-bottom:16px;}
.cta-band p.lead{color:rgba(243,239,230,.75);font-size:16px;max-width:460px;}
.cta-list{margin-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.cta-list li{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:15px;color:rgba(243,239,230,.86);}
.cta-list .mark-ok::after{border-color:var(--terra-soft);}
.form-card{background:#fff;color:var(--txt);border-radius:var(--r-card);padding:28px;box-shadow:0 18px 44px rgba(0,0,0,.22);}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .hint{font-size:13px;color:var(--txt-soft);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;margin-bottom:6px;color:var(--txt);}
.field label .req{color:var(--terra);}
.field input,.field select,.field textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:6px;padding:13px 15px;font-size:15px;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,63,53,.12);}
.field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px;}
.field.has-error input{border-color:var(--err);}
.field.has-error .err-msg{display:block;}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--txt-soft);margin:6px 0 18px;}
.checkline input{margin-top:4px;}
.form-card .btn{width:100%;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(243,239,230,.78);padding:56px 0 0;border-top:1px solid rgba(255,255,255,.12);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
.site-footer .logo-word{color:#fff;}
.site-footer .logo-mark{background:var(--terra);}
.site-footer .logo-mark::after{border-left-color:#fff;}
.footer-brand p{font-size:14px;margin-top:14px;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;padding:5px 0;position:relative;transition:color .24s var(--ease);}
.footer-col a:hover{color:var(--terra);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(243,239,230,.6);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;justify-self:start;}
  .site-header .header-inner{grid-template-columns:1fr auto 1fr;height:60px;}
  .logo{grid-column:2;}
  .header-cta{display:flex;justify-content:flex-end;}
  .hero{padding:88px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{aspect-ratio:16/10;}
  .level-grid{grid-template-columns:1fr;}
  .level-card.is-dark{transform:none;}
  .excl-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .faq-layout{grid-template-columns:1fr;}
  .faq-sticky{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .section{padding:56px 0;}
  .news-grid{grid-template-columns:1fr;}
  .excl-cards{grid-template-columns:1fr;}
  .excl-cards .card:nth-child(2n){transform:none;}
  .quick-grid{grid-template-columns:1fr 1fr;}
  .quick-item:nth-child(odd){border-left:0;}
  .quick-item:nth-child(n+3){border-top:1px solid var(--line);}
  .cmp-wrap{display:none;}
  .cmp-cards{display:flex;}
  .hero-stats .stat{padding:0 16px;}
  .stat .num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:519px){
  :root{--gutter:18px;}
  .quick-grid{grid-template-columns:1fr;}
  .quick-item{border-left:0;border-top:1px solid var(--line);}
  .quick-item:first-child{border-top:0;}
  .hero-cta .btn{width:100%;}
  .hero-stats{flex-direction:column;align-items:flex-start;gap:14px;}
  .hero-stats .stat{border-left:0;padding:0;}
  .form-card{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#123F35;
  --ink-deep:#0B2A23;
  --terra:#C2593A;
  --terra-soft:#E2A184;
  --sand:#F6F2EA;
  --line:#E4DDD1;
  --txt:#23282A;
  --txt-soft:#6F6A61;
  --muted:#ADA69B;
  --card:#FFFFFF;
  --r-card:8px;
  --r-btn:4px;
  --sh-card:0 12px 32px rgba(18,63,53,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--sand);
  color:var(--txt);
  font-family:'Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--terra);}
button,input,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:'Noto Serif SC',serif;font-weight:700;line-height:1.15;letter-spacing:-0.01em;color:var(--txt);}
p{margin:0;}
:focus-visible{outline:2px solid var(--terra);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,242,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .28s var(--ease),background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.94);}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  height:72px;
  transition:height .28s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--txt-soft);
  padding:4px 0;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--terra);transform:scaleX(0);transform-origin:left;
  transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--txt);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--txt);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.logo{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.logo-mark{
  width:20px;height:20px;background:var(--ink);position:relative;flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;left:5px;top:5px;
  width:0;height:0;border-left:10px solid var(--terra);
  border-top:5px solid transparent;border-bottom:5px solid transparent;
  transform:rotate(0deg);
}
.logo-word{
  font-family:'Noto Serif SC',serif;font-weight:800;font-size:19px;
  letter-spacing:.02em;color:var(--ink);white-space:nowrap;
}
.header-cta{margin-left:6px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:12px 24px;
  font-size:15px;font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-deep);color:#fff;}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:500;font-size:15px;
}
.btn-text span{transition:transform .22s var(--ease);}
.btn-text:hover{color:var(--terra);}
.btn-text:hover span{transform:translateX(4px);}
.nav-cta{padding:9px 18px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;color:var(--ink);}
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--sand);
  transform:translateY(-100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;padding:20px;
}
.mobile-drawer.is-open{transform:translateY(0);}
.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-btn);cursor:pointer;font-size:20px;line-height:1;color:var(--ink);
}
.drawer-nav{margin-top:16px;border-top:1px solid var(--line);}
.drawer-nav a{
  display:block;font-size:20px;line-height:56px;color:var(--txt);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--terra);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--txt-soft);}
.drawer-foot .btn{width:100%;margin-top:14px;}
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{grid-template-columns:auto 1fr auto;}
  .site-header .header-cta .nav-cta{display:none;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  font-size:13px;color:var(--txt-soft);display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;
}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--muted);}
.breadcrumb .current{color:var(--txt);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{padding:26px 0 34px;border-bottom:1px solid var(--line);}
.article-hero h1{
  font-size:clamp(30px,4vw,50px);
  font-weight:900;
  max-width:900px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:14px;color:var(--txt-soft);
}
.badge{
  display:inline-flex;align-items:center;
  background:var(--sand);color:var(--ink);
  border:1px solid var(--line);
  font-size:12px;letter-spacing:.06em;
  padding:4px 10px;border-radius:2px;
}
.badge-terra{background:var(--terra);color:#fff;border-color:var(--terra);}
.badge-ink{background:var(--ink);color:#fff;border-color:var(--ink);}
.meta-dot{width:1px;height:12px;background:var(--line);}

/* ---------- 布局 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  padding:48px 0 88px;
  align-items:start;
}
@media (max-width:1023px){
  .layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:32px 0 64px;}
  .side-col{display:none;}
}
.article-wrap{max-width:760px;}
.mobile-toc{display:none;}
@media (max-width:1023px){
  .mobile-toc{display:block;margin-bottom:28px;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;}
  .mobile-toc summary{
    list-style:none;cursor:pointer;padding:14px 18px;font-size:15px;font-weight:500;color:var(--ink);
    display:flex;align-items:center;justify-content:space-between;
  }
  .mobile-toc summary::-webkit-details-marker{display:none;}
  .mobile-toc summary::after{content:"+";color:var(--terra);font-family:'DM Serif Display',serif;font-size:20px;}
  .mobile-toc[open] summary::after{content:"–";}
  .mobile-toc .toc-body{padding:0 18px 16px;border-top:1px solid var(--line);}
  .mobile-toc .toc-body a{display:block;padding:8px 0;font-size:14px;color:var(--txt-soft);border-bottom:1px solid var(--line);}
  .mobile-toc .toc-body a:last-child{border-bottom:0;}
}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--txt);}
.article-body > * + *{margin-top:1.5em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(22px,2.4vw,30px);
  margin-top:48px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--ink);
}
.article-body h3{font-size:22px;margin-top:38px;}
.article-body h4{font-size:18px;margin-top:28px;}
.article-body a{color:var(--terra);border-bottom:1px solid rgba(194,89,58,.35);}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--ink);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul{list-style:none;padding-left:0;}
.article-body ul li{position:relative;padding-left:22px;margin-top:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--terra);
}
.article-body ol{list-style:none;counter-reset:item;padding-left:0;}
.article-body ol li{
  position:relative;padding-left:38px;margin-top:12px;counter-increment:item;
}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-family:'DM Serif Display',serif;font-size:18px;color:var(--ink);
  line-height:1.6;
}
.article-body blockquote{
  margin:34px 0;padding:20px 24px;
  background:var(--sand);border-left:4px solid var(--terra);
  color:var(--txt);border-radius:0 var(--r-card) var(--r-card) 0;
}
.article-body blockquote p{margin:0;}
.article-body figure{margin:34px 0;}
.article-body figure img{border-radius:var(--r-card);width:100%;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--txt-soft);text-align:center;}
.article-body img{border-radius:var(--r-card);}
.article-body table{
  width:100%;border-collapse:collapse;margin:32px 0;font-size:15px;
}
.article-body th{
  text-align:left;font-size:14px;font-weight:500;color:var(--txt-soft);
  padding:12px 14px;border-bottom:1px solid var(--line);
}
.article-body td{
  padding:14px;border-bottom:1px solid var(--line);vertical-align:top;
}
.article-body tr:hover td{background:#FBF8F3;}
.article-body code{
  background:var(--sand);border:1px solid var(--line);border-radius:3px;
  padding:2px 6px;font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:44px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px 20px;background:#fff;
}
.empty-state .icon{
  width:44px;height:44px;border:1px solid var(--line);border-radius:50%;
  display:flex;align-items:center;justify-content:center;color:var(--muted);
  font-family:'DM Serif Display',serif;font-size:20px;
}
.empty-state p{color:var(--txt-soft);font-size:15px;}

/* ---------- 标签与分享 ---------- */
.article-foot{
  margin-top:52px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.tag-row .label{font-size:13px;color:var(--txt-soft);}
.share-row{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--txt-soft);}
.share-row button{
  width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .22s var(--ease),transform .22s var(--ease);
}
.share-row button:hover{border-color:var(--ink);transform:translateY(-2px);}
.share-row svg{width:16px;height:16px;stroke:var(--ink);fill:none;stroke-width:1.6;}

/* ---------- 上下篇 ---------- */
.pager{
  margin-top:34px;display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;
}
.pager a{
  padding:20px 22px;display:flex;flex-direction:column;gap:6px;
  transition:background .22s var(--ease);
}
.pager a + a{border-left:1px solid var(--line);}
.pager a:hover{background:#FBF8F3;}
.pager .dir{font-size:12px;letter-spacing:.08em;color:var(--txt-soft);}
.pager .t{font-size:15px;font-weight:500;color:var(--txt);}
@media (max-width:640px){
  .pager{grid-template-columns:1fr;}
  .pager a + a{border-left:0;border-top:1px solid var(--line);}
}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;
}
.side-card h3{
  font-size:17px;margin-bottom:14px;position:relative;padding-left:12px;
}
.side-card h3::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;background:var(--ink);
}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--txt-soft);
  border-bottom:1px solid var(--line);
  transition:color .22s var(--ease);
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--ink);}
.side-list .arrow{color:var(--terra);transition:transform .22s var(--ease);}
.side-list a:hover .arrow{transform:translateX(3px);}
.side-card p{font-size:14px;color:var(--txt-soft);line-height:1.8;}
.side-meta{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--txt-soft);}
.side-meta .row{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:10px;}
.side-meta .row:last-child{border-bottom:0;padding-bottom:0;}
.side-meta .row b{color:var(--txt);font-weight:500;text-align:right;}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 24px;border-top:1px solid var(--line);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--ink);}
.section-head p{font-size:15px;color:var(--txt-soft);margin-top:8px;max-width:52ch;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;}
@media (max-width:1023px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:640px){.card-grid{grid-template-columns:1fr;}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;position:relative;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-card);border-color:#D8CFC0;}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--sand);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.4;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14px;color:var(--txt-soft);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--txt-soft);
}
.card-foot .arrow{color:var(--terra);transition:transform .22s var(--ease);}
.card:hover .card-foot .arrow{transform:translateX(4px);}
.card-link{position:absolute;inset:0;z-index:2;}

.back-row{margin-top:44px;display:flex;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);color:#E9E3D8;margin-top:40px;
  border-top:1px solid rgba(255,255,255,.08);
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;left:40px;top:-1px;width:22px;height:4px;background:var(--terra);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;
  padding:64px 0 40px;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;}}
.footer-brand .logo-word{color:#F6F2EA;font-size:20px;}
.footer-brand .logo-mark{background:#F6F2EA;}
.footer-brand .logo-mark::after{border-left-color:var(--terra);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#B9B3A7;max-width:36ch;}
.footer-col h4{
  font-family:'Noto Sans SC',sans-serif;font-weight:700;font-size:14px;
  letter-spacing:.08em;color:#F6F2EA;margin-bottom:16px;
}
.footer-col a{
  display:block;font-size:14px;color:#B9B3A7;padding:6px 0;position:relative;
  transition:color .22s var(--ease);
}
.footer-col a:hover{color:var(--terra);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#9E988C;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#123F35;
  --ink-deep:#0B2A23;
  --terra:#C2593A;
  --terra-soft:#E2A184;
  --sand:#F6F2EA;
  --line:#E4DDD1;
  --txt:#23282A;
  --txt-soft:#6F6A61;
  --txt-dim:#ADA69B;
  --r-card:8px;
  --r-btn:4px;
  --sh-card:0 12px 32px rgba(18,63,53,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --pad-x:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:var(--sand);
  color:var(--txt);
  font-family:"Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:"Noto Serif SC",serif;font-weight:700;line-height:1.18;letter-spacing:-.01em;color:var(--ink);}
p{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--terra);outline-offset:2px;border-radius:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--pad-x);
  padding-right:var(--pad-x);
}
@media (min-width:768px){ :root{--pad-x:32px;} }
@media (min-width:1024px){ :root{--pad-x:40px;} }

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(246,242,234,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height 280ms var(--ease),background 280ms var(--ease),border-color 280ms var(--ease);
}
.site-header.is-scrolled{height:60px;background:rgba(255,255,255,.92);border-bottom-color:var(--line);}
.header-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--txt-soft);
  transition:color 220ms var(--ease);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-7px;height:2px;background:var(--terra);
  transform:scaleX(0);transform-origin:left;transition:transform 260ms var(--ease);
}
.nav-link:hover{color:var(--txt);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--txt);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  position:relative;width:20px;height:20px;border-radius:2px;background:var(--ink);
  flex:0 0 20px;
}
.logo-mark::after{
  content:"";position:absolute;left:6px;bottom:4px;width:0;height:0;
  border-left:4px solid transparent;border-right:4px solid transparent;border-bottom:7px solid var(--terra);
}
.logo-word{
  font-family:"Noto Serif SC",serif;font-weight:800;font-size:19px;color:var(--ink);
  letter-spacing:-.01em;white-space:nowrap;
}
.header-cta{display:flex;align-items:center;margin-left:4px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;cursor:pointer;
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease),transform 220ms var(--ease);
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--ink-deep);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-outline:hover{background:var(--ink);color:#fff;}
.btn-text{color:var(--ink);font-weight:700;padding:6px 0;border:0;background:none;}
.btn-text .arrow{display:inline-block;transition:transform 220ms var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn-text:hover{color:var(--terra);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  color:var(--ink);border-radius:4px;
}
.nav-toggle svg{width:22px;height:22px;}

/* mobile drawer */
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:var(--sand);
  transform:translateY(-100%);transition:transform 320ms var(--ease);
  overflow-y:auto;padding:20px var(--pad-x) 40px;
}
.nav-drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:60px;}
.drawer-close{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:var(--ink);}
.drawer-close svg{width:24px;height:24px;}
.drawer-links{margin-top:12px;}
.drawer-links a{
  display:block;font-size:20px;line-height:56px;color:var(--txt);
  border-bottom:1px solid var(--line);font-family:"Noto Serif SC",serif;font-weight:700;
}
.drawer-links a.is-active{color:var(--terra);}
.drawer-foot{margin-top:32px;color:var(--txt-soft);font-size:14px;line-height:2;}
.drawer-foot .btn{width:100%;margin-top:16px;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background:var(--sand);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero-media{
  position:absolute;top:0;right:0;width:46%;height:100%;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.page-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--sand) 0%,rgba(246,242,234,.55) 45%,rgba(246,242,234,.12) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:44px 0 52px;max-width:680px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--txt-soft);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{transition:color 200ms var(--ease);}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--txt-dim);}
.breadcrumb .current{color:var(--txt);}
.page-hero h1{
  font-size:clamp(30px,4vw,50px);font-weight:900;margin-bottom:16px;
}
.page-hero h1 span{display:block;}
.hero-sub{font-size:17px;color:var(--txt-soft);margin-bottom:28px;max-width:520px;}

/* ---------- section base ---------- */
.section{padding:64px 0;}
@media (min-width:768px){ .section{padding:88px 0;} }
@media (min-width:1024px){ .section{padding:120px 0;} }
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(24px,2.6vw,38px);position:relative;padding-left:16px;margin-bottom:16px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:3px;height:32px;background:var(--ink);
}
.sec-head p{color:var(--txt-soft);}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:2px;
  padding:3px 10px;margin-bottom:14px;
}
.section-alt .eyebrow{background:var(--sand);}

/* ---------- split blocks ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:1024px){
  .split{grid-template-columns:1fr 1fr;gap:64px;}
  .split.reverse .split-media{order:2;}
  .split.reverse .split-body{order:1;}
}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#fff;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 320ms var(--ease);}
.split-media:hover img{transform:scale(1.04);}
.split-body h2{font-size:clamp(24px,2.6vw,38px);position:relative;padding-left:16px;margin-bottom:20px;}
.split-body h2::before{content:"";position:absolute;left:0;top:.18em;width:3px;height:32px;background:var(--ink);}
.split-body p{color:var(--txt-soft);margin-bottom:16px;}
.ticks{margin-top:26px;border-top:1px solid var(--line);}
.ticks li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--txt);
}
.tick-dot{
  flex:0 0 16px;width:16px;height:16px;margin-top:6px;border-radius:50%;
  border:1.5px solid var(--ink);position:relative;
}
.tick-dot::after{
  content:"";position:absolute;left:4px;top:3px;width:5px;height:8px;
  border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);
  transform:rotate(45deg);
}

/* steps */
.steps{counter-reset:step;margin-top:26px;}
.steps li{
  display:grid;grid-template-columns:44px 1fr;gap:14px;
  padding:16px 0;border-bottom:1px solid var(--line);
}
.steps .num{
  font-family:"DM Serif Display",serif;font-size:26px;color:var(--terra);line-height:1.1;
}
.steps h4{font-size:17px;font-family:"Noto Sans SC",sans-serif;font-weight:700;color:var(--ink);margin-bottom:4px;}
.steps p{font-size:14.5px;color:var(--txt-soft);margin:0;}

/* ---------- stats strip ---------- */
.stats{
  display:grid;grid-template-columns:repeat(2,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
@media (min-width:768px){ .stats{grid-template-columns:repeat(4,1fr);} }
.stat{
  padding:28px 16px;text-align:center;border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;}
@media (max-width:767px){
  .stat:nth-child(2n){border-right:0;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
}
.stat .value{
  font-family:"DM Serif Display",serif;font-size:clamp(30px,3.4vw,46px);
  color:var(--ink);line-height:1;display:block;margin-bottom:10px;
}
.stat .label{font-size:14px;color:var(--txt-soft);}

/* ---------- compare table ---------- */
.table-wrap{display:none;}
@media (min-width:768px){ .table-wrap{display:block;overflow-x:auto;} }
.compare-table{min-width:640px;}
.compare-table th,.compare-table td{
  padding:16px 14px;border-bottom:1px solid var(--line);text-align:center;font-size:15px;
}
.compare-table thead th{
  font-size:14px;font-weight:500;color:var(--txt-soft);
  font-family:"Noto Sans SC",sans-serif;position:relative;vertical-align:bottom;
}
.compare-table tbody th{
  text-align:left;font-weight:500;color:var(--txt);font-size:15px;
}
.compare-table tbody tr{transition:background 220ms var(--ease);}
.compare-table tbody tr:hover{background:#FBF8F3;}
.compare-table .is-featured{background:rgba(18,63,53,.04);}
.compare-table thead th.is-featured{border-top:3px solid var(--terra);}
.rec-badge{
  display:block;width:fit-content;margin:0 auto 8px;
  background:var(--terra);color:#fff;font-size:11px;line-height:1.6;
  padding:1px 8px;border-radius:2px;letter-spacing:.06em;
}
.ic-yes,.ic-no{
  display:inline-block;width:16px;height:16px;border-radius:50%;position:relative;vertical-align:middle;
}
.ic-yes{border:1.5px solid var(--ink);}
.ic-yes::after{
  content:"";position:absolute;left:4px;top:3px;width:5px;height:8px;
  border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);
  transform:rotate(45deg);
}
.ic-no{border:1.5px solid #C9C2B6;}
.ic-no::before,.ic-no::after{
  content:"";position:absolute;left:2.5px;top:6.5px;width:9px;height:1.5px;background:#C9C2B6;
}
.ic-no::before{transform:rotate(45deg);}
.ic-no::after{transform:rotate(-45deg);}

.compare-cards{display:grid;grid-auto-flow:column;grid-auto-columns:80%;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
@media (min-width:520px){ .compare-cards{grid-auto-columns:60%;} }
.compare-cards .tier-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;
}
.compare-cards .tier-card.is-featured{border-top:3px solid var(--terra);}
.compare-cards h3{font-size:19px;margin-bottom:6px;}
.compare-cards .tier-note{font-size:13px;color:var(--txt-soft);margin-bottom:16px;}
.compare-cards ul li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:11px 0;border-top:1px solid var(--line);font-size:14.5px;
}
@media (min-width:768px){ .compare-cards{display:none;} }

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){
  .faq-layout{grid-template-columns:4fr 8fr;gap:64px;align-items:start;}
  .faq-aside{position:sticky;top:96px;}
}
.faq-aside h2{font-size:clamp(24px,2.6vw,38px);position:relative;padding-left:16px;margin-bottom:16px;}
.faq-aside h2::before{content:"";position:absolute;left:0;top:.18em;width:3px;height:32px;background:var(--ink);}
.faq-aside p{color:var(--txt-soft);font-size:15px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);transition:border-color 240ms var(--ease);}
.faq-item summary{
  display:flex;align-items:flex-start;gap:16px;
  padding:22px 0;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item .idx{font-family:"DM Serif Display",serif;font-size:20px;color:var(--terra);line-height:1.4;flex:0 0 26px;}
.faq-item .q{flex:1;font-size:17px;font-weight:500;color:var(--txt);line-height:1.65;}
.faq-item .plus{
  flex:0 0 20px;width:20px;height:20px;position:relative;margin-top:6px;
  transition:transform 240ms var(--ease);
}
.faq-item .plus::before,.faq-item .plus::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;
}
.faq-item .plus::before{left:0;top:9px;width:20px;height:1.6px;}
.faq-item .plus::after{left:9px;top:0;width:1.6px;height:20px;}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-item[open] summary{border-bottom:1px solid var(--line);}
.faq-item .a{
  padding:18px 0 24px 42px;font-size:15.5px;color:var(--txt-soft);
  animation:fadeIn 240ms var(--ease);
}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ---------- entry grid ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){ .entry-grid{grid-template-columns:1fr 1fr;} }
.entry-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:96px;padding:22px 24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.entry-card:hover{border-color:var(--ink);box-shadow:var(--sh-card);transform:translateY(-2px);}
.entry-card .entry-title{font-family:"Noto Serif SC",serif;font-size:18px;font-weight:700;color:var(--ink);}
.entry-card .entry-desc{font-size:13.5px;color:var(--txt-soft);margin-top:4px;}
.entry-card .arrow{color:var(--terra);font-size:18px;transition:transform 220ms var(--ease);}
.entry-card:hover .arrow{transform:translateX(4px);}
.entry-icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:var(--r-card);
  background:var(--sand);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink);
}
.entry-icon svg{width:20px;height:20px;}

/* ---------- CTA bar ---------- */
.cta-bar{
  background:var(--ink);border-radius:var(--r-card);padding:28px 28px;
  display:grid;gap:20px;align-items:center;
}
@media (min-width:768px){
  .cta-bar{grid-template-columns:1fr auto;padding:32px 40px;min-height:112px;}
}
.cta-bar h2{color:#fff;font-size:clamp(20px,2.2vw,28px);margin-bottom:8px;padding:0;}
.cta-bar p{color:rgba(255,255,255,.72);font-size:15px;margin:0;}
.cta-bar .btn-light{background:#fff;color:var(--ink);}
.cta-bar .btn-light:hover{background:var(--terra);color:#fff;}

/* ---------- reveal ---------- */
.js-ready .reveal{opacity:0;transform:translateY(16px);transition:opacity 320ms var(--ease),transform 320ms var(--ease);}
.js-ready .reveal.is-visible{opacity:1;transform:none;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:rgba(246,242,234,.78);padding:64px 0 24px;margin-top:0;}
.site-footer .footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-top:24px;border-top:1px solid rgba(246,242,234,.14);
}
@media (min-width:768px){ .site-footer .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;} }
.site-footer .logo-word{color:#F6F2EA;}
.site-footer .logo-mark{background:#F6F2EA;}
.site-footer .logo-mark::after{border-bottom-color:var(--terra);}
.footer-brand p{font-size:14.5px;line-height:1.9;margin-top:16px;max-width:320px;color:rgba(246,242,234,.66);}
.footer-col h4{
  font-family:"Noto Sans SC",sans-serif;font-size:14px;font-weight:700;
  color:#F6F2EA;letter-spacing:.04em;margin-bottom:16px;
}
.footer-col a{
  display:block;font-size:14.5px;color:rgba(246,242,234,.7);padding:6px 0;
  position:relative;width:fit-content;transition:color 200ms var(--ease);
}
.footer-col a::after{
  content:"";position:absolute;left:0;bottom:2px;width:100%;height:1px;background:var(--terra);
  transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease);
}
.footer-col a:hover{color:var(--terra);}
.footer-col a:hover::after{transform:scaleX(1);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(246,242,234,.14);
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:13px;color:rgba(246,242,234,.55);
}

/* ---------- responsive nav ---------- */
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{grid-template-columns:40px 1fr 40px;}
  .logo{justify-self:center;}
  .header-cta{display:none;}
  .nav-side.right{display:none;}
}

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

/* roulang page: category2 */
:root{
  --ink:#123F35; --ink-deep:#0B2A23; --terra:#C2593A; --terra-soft:#E2A184;
  --sand:#F6F2EA; --card:#FFFFFF; --line:#E4DDD1;
  --txt:#23282A; --txt-soft:#6F6A61; --muted:#ADA69B;
  --r-card:8px; --r-btn:4px;
  --sh-card:0 12px 32px rgba(18,63,53,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gap-sec:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.site-body{
  margin:0; background:var(--sand); color:var(--txt);
  font-family:'Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px; line-height:1.85; font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--terra);outline-offset:2px}

.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1024px){.container{padding:0 40px}}
.section{padding:var(--gap-sec) 0}
@media (min-width:768px){.section{padding:88px 0}}
@media (min-width:1024px){.section{padding:120px 0}}
.section-sand{background:var(--sand)}
.section-line{border-top:1px solid var(--line)}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,242,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background 280ms var(--ease),border-color 280ms var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.92);border-bottom-color:var(--line)}
.header-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:20px;height:72px;transition:height 280ms var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{position:relative;width:20px;height:20px;background:var(--ink);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;right:2px;bottom:2px;width:0;height:0;border-left:8px solid transparent;border-bottom:8px solid var(--terra)}
.logo-word{font-family:'Noto Serif SC',serif;font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--ink);line-height:1}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-side.right{justify-content:flex-end}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--txt-soft);padding:6px 0;white-space:nowrap;transition:color 220ms var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--terra);transform:scaleX(0);transform-origin:left;transition:transform 240ms var(--ease)}
.nav-link:hover{color:var(--txt)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--txt);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center}
.nav-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--ink);cursor:pointer}
.nav-toggle svg{width:20px;height:20px}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-btn);border:1px solid transparent;padding:12px 24px;font-size:15px;font-weight:500;line-height:1.4;cursor:pointer;transition:background 240ms var(--ease),color 240ms var(--ease),border-color 240ms var(--ease),transform 240ms var(--ease)}
.btn svg{width:16px;height:16px;transition:transform 240ms var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-deep)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--terra);color:#fff}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:15px;font-weight:500;padding:4px 0;border:0;background:none;cursor:pointer}
.btn-text::after{content:"";width:16px;height:1px;background:var(--ink);transition:width 220ms var(--ease)}
.btn-text:hover::after{width:26px}
.nav-cta{padding:10px 20px;font-size:14px}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--txt-soft);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a:hover{color:var(--ink)}
.crumb .sep{color:var(--muted)}
.crumb .cur{color:var(--txt)}

/* ============ 分类 Hero ============ */
.cat-hero{position:relative;overflow:hidden;background:var(--sand);border-bottom:1px solid var(--line);padding:48px 0 60px;text-align:center}
.cat-hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(18,63,53,.05) 0 1px,transparent 1px 16px);pointer-events:none}
.cat-hero > .container{position:relative;z-index:1}
.cat-hero .crumb{justify-content:center;margin-bottom:22px}
.cat-title{font-family:'Noto Serif SC',serif;font-weight:900;font-size:clamp(30px,4vw,48px);line-height:1.18;letter-spacing:-.01em;color:var(--ink)}
.cat-title .brand-inline{color:var(--ink);margin-right:.28em}
.cat-sub{max-width:660px;margin:18px auto 0;font-size:16.5px;color:var(--txt-soft)}
.chip-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:26px}
.chip{display:inline-block;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:12px;letter-spacing:.06em;padding:6px 12px;border-radius:2px}
.hero-actions{margin-top:30px;display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* ============ 区块标题 ============ */
.sec-head{margin-bottom:40px}
.sec-head.center{text-align:center}
.sec-head.center .sec-h2::after{margin-left:auto;margin-right:auto}
.sec-h2{font-family:'Noto Serif SC',serif;font-weight:900;font-size:clamp(24px,2.6vw,36px);line-height:1.22;letter-spacing:-.01em;color:var(--ink)}
.sec-h2::after{content:"";display:block;width:32px;height:3px;background:var(--ink);margin-top:16px}
.sec-desc{margin-top:14px;color:var(--txt-soft);font-size:16px;max-width:620px}
.sec-head.center .sec-desc{margin-left:auto;margin-right:auto}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:30px 26px 34px;border-left:1px solid var(--line)}
.step:first-child{border-left:0}
.step-num{font-family:'DM Serif Display',serif;font-size:40px;line-height:1;color:var(--terra)}
.step h3{margin-top:16px;font-size:18px;font-weight:700;color:var(--ink);font-family:'Noto Serif SC',serif}
.step p{margin-top:10px;font-size:15px;color:var(--txt-soft)}
@media (max-width:1023px){
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(odd){border-left:0}
  .step{border-top:1px solid var(--line)}
  .step:nth-child(-n+2){border-top:0}
}
@media (max-width:640px){
  .steps{grid-template-columns:1fr}
  .step{border-left:0;border-top:1px solid var(--line);padding:24px 20px}
  .step:first-child{border-top:0}
}

/* ============ 卡片网格 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform 260ms var(--ease),box-shadow 260ms var(--ease),border-color 260ms var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-card);border-color:#D8CFBF}
.card-media{aspect-ratio:16/10;overflow:hidden;background:#EFE9DE}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:24px 26px 26px}
.card-title{font-family:'Noto Serif SC',serif;font-size:19px;font-weight:700;color:var(--ink);line-height:1.4}
.card-desc{margin-top:10px;font-size:15px;color:var(--txt-soft);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-link{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14px;font-weight:500;color:var(--ink)}
.card-link svg{width:16px;height:16px;transition:transform 240ms var(--ease)}
.card:hover .card-link svg{transform:translateX(4px)}
@media (max-width:768px){.svc-grid{grid-template-columns:1fr;gap:24px}}

/* ============ 适合团队 ============ */
.fit-grid{display:grid;grid-template-columns:4fr 7fr;gap:56px;align-items:start}
.fit-list{border-top:1px solid var(--line)}
.fit-item{display:grid;grid-template-columns:200px 1fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);transition:background 240ms var(--ease)}
.fit-item:hover{background:#FBF8F3}
.fit-tag{font-family:'Noto Serif SC',serif;font-size:17px;font-weight:700;color:var(--ink)}
.fit-tag span{display:block;font-family:'Noto Sans SC',sans-serif;font-size:13px;font-weight:400;color:var(--muted);letter-spacing:.04em;margin-top:4px}
.fit-item p{font-size:15px;color:var(--txt-soft)}
@media (max-width:1023px){
  .fit-grid{grid-template-columns:1fr;gap:32px}
  .fit-item{grid-template-columns:1fr;gap:8px}
}

/* ============ 指标带 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:64px}
.metric{padding:28px 24px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric-num{font-family:'DM Serif Display',serif;font-size:38px;line-height:1.1;color:var(--ink)}
.metric-num .u{font-family:'Noto Sans SC',sans-serif;font-size:15px;color:var(--txt-soft);margin-left:6px}
.metric-label{margin-top:8px;font-size:14px;color:var(--txt-soft)}
@media (max-width:900px){
  .metrics{grid-template-columns:1fr 1fr}
  .metric:nth-child(odd){border-left:0}
  .metric{border-top:1px solid var(--line)}
  .metric:nth-child(-n+2){border-top:0}
}
@media (max-width:520px){
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0;border-top:1px solid var(--line)}
  .metric:first-child{border-top:0}
}

/* ============ 图文保障 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split.rev .split-media{order:2}
.split-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#EFE9DE}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.check-list{margin-top:26px}
.check-list li{position:relative;padding:14px 0 14px 26px;border-bottom:1px solid var(--line);font-size:15.5px;color:var(--txt-soft)}
.check-list li::before{content:"";position:absolute;left:0;top:24px;width:8px;height:8px;background:var(--terra);border-radius:2px}
.check-list li strong{color:var(--ink);font-weight:700}
@media (max-width:900px){
  .split,{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .split.rev .split-media{order:0}
}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:100px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;background:none;border:0;text-align:left;padding:22px 0;cursor:pointer;color:var(--txt)}
.faq-idx{font-family:'DM Serif Display',serif;font-size:18px;color:var(--terra);min-width:28px}
.faq-txt{flex:1;font-size:17px;font-weight:500;line-height:1.6}
.faq-plus{position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform 240ms var(--ease)}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--ink);border-radius:1px}
.faq-plus::before{left:0;top:9px;width:20px;height:2px}
.faq-plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms var(--ease)}
.faq-a p{padding:0 0 24px 44px;font-size:15.5px;color:var(--txt-soft)}
.faq-item.is-open{border-bottom-color:var(--ink)}
.faq-item.is-open .faq-q{padding-bottom:10px}
@media (max-width:1023px){
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .faq-a p{padding-left:0}
}

/* ============ 收尾 CTA 条 ============ */
.cta-bar{background:var(--ink);color:#fff;padding:36px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-bar h2{font-family:'Noto Serif SC',serif;font-weight:900;font-size:clamp(22px,2.2vw,30px);line-height:1.3;color:#fff}
.cta-bar p{margin-top:8px;font-size:15px;color:rgba(255,255,255,.72)}
@media (max-width:640px){.cta-bar .btn{width:100%;justify-content:center}}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#EDE7DB;padding:64px 0 0;border-top:1px solid rgba(237,231,219,.14)}
.site-footer .logo-word{color:#fff}
.site-footer .logo-mark{background:var(--terra)}
.site-footer .logo-mark::after{border-bottom-color:#fff}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:18px;font-size:14.5px;line-height:1.85;color:rgba(237,231,219,.7);max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;font-family:'Noto Serif SC',serif}
.footer-col a{display:block;font-size:14px;color:rgba(237,231,219,.72);padding:6px 0;transition:color 220ms var(--ease)}
.footer-col a:hover{color:var(--terra-soft)}
.footer-bottom{border-top:1px solid rgba(237,231,219,.16);padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(237,231,219,.58)}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ============ 移动端导航 ============ */
@media (max-width:1023px){
  .header-inner{grid-template-columns:auto 1fr auto;height:60px;gap:12px}
  .nav-toggle{display:inline-flex;justify-self:start}
  .logo{justify-self:center}
  .header-cta{display:none}
  .nav-side{display:none}
  body.nav-open .nav-side{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:fixed;left:0;right:0;top:60px;bottom:0;
    background:var(--sand);border-top:1px solid var(--line);
    padding:8px 20px 40px;overflow-y:auto;z-index:55;
  }
  body.nav-open .nav-link{width:100%;font-size:20px;line-height:56px;border-bottom:1px solid var(--line);color:var(--txt)}
  body.nav-open .nav-link::after{display:none}
  body.nav-open{overflow:hidden}
}

/* ============ 进入视口动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 300ms var(--ease),transform 300ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}