/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-soft:#22262D;
  --orange:#F2542D;
  --orange-dark:#D8411C;
  --green:#1F6F5C;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E6E2DC;
  --text:#2B2F36;
  --text-2:#74716B;
  --muted:#B6B2AC;
  --r-card:14px;
  --r-nav:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04);
  --sh-2:0 14px 30px -20px rgba(20,22,26,.22);
  --wrap:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-body-bg:#F7F5F2;
  --bs-body-color:#2B2F36;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-border-color:#E6E2DC;
  --bs-border-radius:14px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:16px;
  --bs-primary:#F2542D;
  --bs-primary-rgb:242,84,45;
  --bs-link-color:#1F6F5C;
  --bs-link-hover-color:#F2542D;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--green);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--orange)}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.22;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700}
h3{font-size:20px;font-weight:600}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;width:100%}
.sec{padding:96px 0}
.sec--tight{padding:76px 0}
.sec--white{background:var(--card)}
.sec--dark{background:var(--ink);color:#EDEAE5}
.sec--dark h2,.sec--dark h3{color:#fff}
.num{font-variant-numeric:tabular-nums;font-weight:800}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;padding:14px 0;background:rgba(247,245,242,.88);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease)}
.site-header.is-stuck{border-bottom-color:var(--line);background:rgba(247,245,242,.96)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-nav);
  padding:10px 20px;box-shadow:var(--sh-1);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px}
.brand:hover .brand-name{color:var(--orange)}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;letter-spacing:-.02em;
  position:relative;overflow:hidden;
}
.brand-mark::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:3px;background:var(--orange)}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em;transition:color .2s var(--ease);white-space:nowrap}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:flex;align-items:center;gap:8px;min-height:44px;padding:8px 13px;
  border-radius:12px;background:#FBFAF8;border:1px solid transparent;
  color:var(--text);font-size:14px;font-weight:500;white-space:nowrap;
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-card i{font-size:15px;color:var(--green);transition:color .22s var(--ease)}
.nav-card:hover{transform:translateY(-2px);background:#fff;border-color:var(--orange);box-shadow:var(--sh-1);color:var(--ink)}
.nav-card:hover i{color:var(--orange)}
.nav-card.active{background:rgba(242,84,45,.08);border-color:rgba(242,84,45,.30);color:var(--orange);box-shadow:inset 3px 0 0 var(--orange)}
.nav-card.active i{color:var(--orange)}
.nav-cta{flex:0 0 auto}
.nav-burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#FBFAF8;border-radius:12px;
  color:var(--ink);align-items:center;justify-content:center;font-size:17px;
}
.offcanvas{background:var(--bg)}
.offcanvas-header{border-bottom:1px solid var(--line)}
.offcanvas-title{font-size:16px;font-weight:800;color:var(--ink)}
.oc-cards{display:flex;flex-direction:column;gap:10px;padding:18px 0}
.oc-cards .nav-card{justify-content:flex-start;background:#fff;border-color:var(--line)}

/* ============ 按钮 ============ */
.btn{--bs-btn-border-radius:10px;border-radius:var(--r-btn);font-weight:600;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.btn-hs{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 22px;font-size:15px;line-height:1.2}
.btn-primary{
  --bs-btn-bg:#F2542D;--bs-btn-border-color:#F2542D;
  --bs-btn-hover-bg:#D8411C;--bs-btn-hover-border-color:#D8411C;
  --bs-btn-active-bg:#C63A18;--bs-btn-active-border-color:#C63A18;
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;--bs-btn-active-color:#fff;
  --bs-btn-focus-shadow-rgb:242,84,45;
  box-shadow:0 1px 2px rgba(20,22,26,.06);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 24px -14px rgba(242,84,45,.75)}
.btn-outline-ink{
  --bs-btn-color:#14161A;--bs-btn-border-color:#14161A;--bs-btn-bg:transparent;
  --bs-btn-hover-bg:#14161A;--bs-btn-hover-color:#fff;--bs-btn-hover-border-color:#14161A;
  --bs-btn-active-bg:#14161A;--bs-btn-active-color:#fff;--bs-btn-active-border-color:#14161A;
  border-width:1px;
}
.btn-outline-ink:hover{transform:translateY(-2px)}
.btn-link-hs{
  display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-weight:600;font-size:15px;
  border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease)
}
.btn-link-hs:hover{color:var(--orange);border-bottom-color:var(--orange)}
.btn-link-hs i{transition:transform .2s var(--ease)}
.btn-link-hs:hover i{transform:translateX(3px)}

/* ============ 标签 / 徽章 ============ */
.badge-hs{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1.5;letter-spacing:.01em;
}
.badge-green{background:rgba(31,111,92,.12);color:var(--green)}
.badge-orange{background:rgba(242,84,45,.12);color:var(--orange)}
.badge-ink{background:rgba(20,22,26,.07);color:var(--ink)}
.sec--dark .badge-green{background:rgba(31,111,92,.28);color:#8FD3C0}
.badge{border-radius:999px;font-size:12px;font-weight:600}

/* ============ 首屏 ============ */
.hero{padding:70px 0 96px;background:
  radial-gradient(1100px 420px at 88% -10%, rgba(31,111,92,.10), transparent 62%),
  linear-gradient(180deg,#F7F5F2 0%,#F4F1ED 100%);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;padding:6px 14px;border-radius:999px;background:rgba(20,22,26,.06);font-size:13px;font-weight:600;color:var(--ink)}
.hero-eyebrow i{color:var(--orange)}
.hero h1{margin-bottom:20px}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;background:rgba(242,84,45,.18);z-index:-1;border-radius:3px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:540px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px}
.trust-chip{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--text)}
.trust-chip i{font-size:12px;color:var(--green)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-nav);box-shadow:var(--sh-2)}
.hero-badge{
  position:absolute;left:-18px;bottom:24px;background:var(--green);color:#fff;border-radius:var(--r-card);
  padding:16px 20px;box-shadow:0 18px 34px -22px rgba(20,22,26,.6);min-width:180px;
}
.hero-badge .hb-num{font-size:26px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.hero-badge .hb-txt{font-size:12.5px;opacity:.9;margin-top:2px}

/* ============ 指标看板 ============ */
.board-head{max-width:720px;margin-bottom:44px}
.board-head p{color:var(--text-2);margin-top:14px}
.sec--dark .board-head p{color:#ADA9A2}
.board{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.12)}
.board-item{background:var(--ink);padding:32px 26px;transition:background .25s var(--ease)}
.board-item:hover{background:var(--ink-soft)}
.board-num{font-size:clamp(32px,4vw,48px);font-weight:800;color:var(--orange);font-variant-numeric:tabular-nums;line-height:1.05;letter-spacing:-.02em}
.board-num span{font-size:17px;font-weight:700;margin-left:4px;color:#E7E3DD}
.board-label{margin-top:12px;font-size:14px;color:#CFCAC3;line-height:1.7}
.board-note{margin-top:14px;font-size:12.5px;color:#8B8781}

/* ============ 服务矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.mx-lead{
  grid-column:span 2;grid-row:span 2;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease)
}
.mx-lead:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh-2)}
.mx-lead img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mx-lead-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.mx-lead-body h3{font-size:22px}
.mx-lead-body p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0}
.mx-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  display:flex;flex-direction:column;gap:10px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease)
}
.mx-item:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh-2)}
.mx-ico{
  width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:rgba(31,111,92,.10);color:var(--green);font-size:16px
}
.mx-item h3{font-size:17px}
.mx-item p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0}
.mx-arrow{margin-top:auto;color:var(--muted);font-size:14px;transition:color .2s var(--ease),transform .2s var(--ease)}
.mx-item:hover .mx-arrow{color:var(--orange);transform:translateX(3px)}

/* ============ 结果对比 ============ */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.cmp-card.is-hs{border-color:var(--orange);box-shadow:var(--sh-2)}
.cmp-title{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);margin-bottom:20px}
.cmp-title .dot{width:10px;height:10px;border-radius:3px;background:var(--muted)}
.cmp-card.is-hs .cmp-title .dot{background:var(--orange)}
.cmp-list{display:flex;flex-direction:column;gap:14px}
.cmp-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:var(--text-2)}
.cmp-list li i{margin-top:6px;font-size:12px;color:var(--muted);flex:0 0 auto}
.cmp-card.is-hs .cmp-list li{color:var(--text)}
.cmp-card.is-hs .cmp-list li i{color:var(--green)}

/* ============ 最新信息 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head .sh-txt{max-width:660px}
.sec-head p{color:var(--text-2);margin-top:12px;font-size:15px}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease)
}
.post-card:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh-2)}
.post-media{display:block;overflow:hidden;background:#EFECE7}
.post-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-media img{transform:scale(1.04)}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:18px;line-height:1.5;transition:color .2s var(--ease)}
.post-body h3 a{color:var(--ink)}
.post-card:hover .post-body h3 a{color:var(--orange)}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;font-size:13px;color:var(--text-2)}
.post-meta i{font-size:12px;margin-right:5px;color:var(--muted)}
.post-more{font-size:13px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:5px}
.post-card:hover .post-more{color:var(--orange)}
.empty-state{
  grid-column:1/-1;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;color:var(--text-2)
}
.empty-state i{font-size:28px;color:var(--muted);display:block;margin-bottom:14px}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq .accordion-item{
  background:var(--card);border:1px solid var(--line)!important;border-radius:var(--r-card)!important;
  margin-bottom:14px;overflow:hidden;position:relative;box-shadow:var(--sh-1)
}
.faq .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--orange);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease)
}
.faq .accordion-item:has(.accordion-button:not(.collapsed))::before{transform:scaleY(1)}
.faq .accordion-button{
  background:transparent;box-shadow:none!important;font-size:17px;font-weight:600;color:var(--ink);
  padding:22px 24px;gap:16px;line-height:1.6
}
.faq .accordion-button::after{display:none}
.faq .accordion-button .fx{
  margin-left:auto;flex:0 0 auto;width:24px;height:24px;position:relative;
  transition:transform .3s var(--ease)
}
.faq .accordion-button .fx::before,
.faq .accordion-button .fx::after{
  content:"";position:absolute;background:var(--orange);border-radius:2px;transition:opacity .3s var(--ease)
}
.faq .accordion-button .fx::before{left:50%;top:4px;width:2px;height:16px;transform:translateX(-50%)}
.faq .accordion-button .fx::after{top:50%;left:4px;height:2px;width:16px;transform:translateY(-50%)}
.faq .accordion-button:not(.collapsed) .fx{transform:rotate(90deg)}
.faq .accordion-button:not(.collapsed) .fx::before{opacity:0}
.faq .accordion-body{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 转化表单 ============ */
.convert{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border:1px solid var(--line);border-radius:var(--r-nav);overflow:hidden;background:var(--card);box-shadow:var(--sh-1)}
.convert-form{padding:40px}
.convert-side{background:var(--ink);color:#EDEAE5;padding:40px;display:flex;flex-direction:column;gap:22px}
.convert-side h3{color:#fff;font-size:20px}
.convert-side p{color:#B9B4AD;font-size:14.5px;line-height:1.85}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{display:flex;gap:12px;font-size:14.5px;color:#D6D1CA;line-height:1.7}
.side-list li i{color:var(--orange);margin-top:6px;font-size:12px}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-label .req{color:var(--orange);margin-left:4px}
.form-control,.form-select{
  border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;color:var(--text);
  background:#FCFBF9;min-height:46px;box-shadow:none;transition:border-color .2s var(--ease),background .2s var(--ease)
}
.form-control:focus,.form-select:focus{border-color:var(--orange);background:#fff;box-shadow:0 0 0 3px rgba(242,84,45,.12)}
.form-control::placeholder{color:var(--muted)}
.form-hint{font-size:12.5px;color:var(--text-2);margin-top:6px}
.form-msg{font-size:13px;margin-top:8px;color:var(--green);display:none}
.form-msg.is-on{display:block}

/* ============ 面包屑 ============ */
.crumb{font-size:12px;color:var(--text-2);display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--orange)}
.crumb span.sep{color:var(--muted)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#B9B4AD;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:#fff;color:var(--ink)}
.footer-brand .brand-name{color:#fff}
.site-footer p{font-size:14px;line-height:1.85;color:#8F8B85}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#B9B4AD;font-size:14px;display:inline-flex;align-items:center;gap:8px}
.footer-links a:hover{color:var(--orange)}
.footer-links i{font-size:11px;color:#5C5955}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7C7873}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .brand-name{font-size:15px}
  .nav-card{padding:8px 10px;font-size:13px}
  .hero-grid{gap:40px}
  .board{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .mx-lead{grid-column:span 2;grid-row:auto}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .nav-cards,.nav-cta{display:none}
  .nav-burger{display:flex}
  .nav-panel{padding:10px 16px}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-badge{left:16px;bottom:-14px}
  .sec{padding:64px 0}
  .sec--tight{padding:56px 0}
  .cmp{grid-template-columns:1fr}
  .convert{grid-template-columns:1fr}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  body{font-size:15.5px}
  .sec{padding:56px 0}
  .board{grid-template-columns:repeat(2,1fr)}
  .board-item{padding:24px 18px}
  .post-grid{grid-template-columns:1fr}
  .convert-form,.convert-side{padding:26px}
  .blog-title{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  .hero-actions .btn-hs{width:100%}
  .faq .accordion-button{font-size:16px;padding:18px}
  .faq .accordion-body{padding:0 18px 20px}
  .footer-bottom{font-size:12px}
}
@media (max-width:520px){
  .hero-badge{position:static;margin-top:14px;display:inline-block}
  .brand-name{font-size:14px;white-space:normal}
  .mx-lead{grid-column:span 1}
  .matrix{grid-template-columns:1fr}
  .board{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-color:#2B2F36;
  --bs-body-bg:#F7F5F2;
  --bs-border-color:#E6E2DC;
  --bs-link-color:#2B2F36;
  --bs-link-hover-color:#F2542D;
  --bs-border-radius:14px;

  --ink:#14161A;
  --ink-soft:#1F2228;
  --accent:#F2542D;
  --accent-dark:#D8441F;
  --green:#1F6F5C;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E6E2DC;
  --text:#2B2F36;
  --muted:#74716B;
  --disabled:#B6B2AC;
  --r-card:14px;
  --r-panel:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04);
  --sh-2:0 14px 30px -20px rgba(20,22,26,.22);
  --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;
  font-family:var(--bs-body-font-family);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}

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

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:1030;
  padding:14px 0 12px;
  background:rgba(247,245,242,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:10px 20px;
}
.brand{display:flex;align-items:center;gap:10px;min-height:44px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;font-weight:800;font-size:18px;
  letter-spacing:0;
}
.brand-name{font-size:17px;font-weight:800;color:var(--ink);white-space:nowrap}
.nav-cards{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-card{
  display:flex;align-items:center;gap:8px;
  padding:10px 14px;min-height:44px;
  border-radius:12px;
  background:#F7F5F2;
  border:1px solid transparent;
  color:var(--text);font-size:14px;font-weight:600;
  white-space:nowrap;
}
.nav-card i{font-size:15px;color:var(--green);transition:color .22s var(--ease)}
.nav-card:hover{transform:translateY(-2px);background:#fff;border-color:var(--accent);color:var(--ink);box-shadow:var(--sh-1)}
.nav-card:hover i{color:var(--accent)}
.nav-card.active{
  background:#fff;border-color:var(--accent);color:var(--ink);
  box-shadow:inset 3px 0 0 var(--accent);
}
.nav-card.active i{color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;
  background:var(--accent);color:#fff;
  border:1px solid var(--accent);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  transition:background-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn-main:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;box-shadow:0 12px 24px -14px rgba(242,84,45,.75);transform:translateY(-1px)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;
  background:transparent;color:var(--ink);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.nav-toggle{
  width:44px;height:44px;display:none;align-items:center;justify-content:center;
  background:#F7F5F2;border:1px solid var(--line);border-radius:12px;color:var(--ink);
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}

.offcanvas.nav-drawer{background:var(--bg)}
.offcanvas.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas.nav-drawer .offcanvas-body{padding:18px 20px}
.drawer-title{font-size:16px;font-weight:800;color:var(--ink)}
.drawer-list{display:flex;flex-direction:column;gap:10px}
.drawer-item{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;min-height:48px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  font-size:15px;font-weight:600;color:var(--ink);
}
.drawer-item i{color:var(--green)}
.drawer-item:hover{border-color:var(--accent)}
.drawer-item:hover i{color:var(--accent)}
.drawer-cta{margin-top:18px}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);line-height:1.6;
}
.crumb .sep{color:var(--disabled)}
.crumb a:hover{color:var(--accent)}
.crumb .current{color:var(--text)}

/* ---------- 文章头部 ---------- */
.article-head{padding:26px 0 0}
.head-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:34px 36px;
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:34px;
  align-items:center;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;line-height:1;
  padding:7px 12px;border-radius:999px;
}
.chip-green{background:rgba(31,111,92,.12);color:var(--green)}
.chip-orange{background:rgba(242,84,45,.12);color:var(--accent-dark)}
.article-title{
  font-size:clamp(26px,3.3vw,42px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
  color:var(--ink);
  margin:16px 0 0;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:18px;font-size:13px;color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--disabled);font-size:13px}
.head-visual{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:#EFECE7;
}
.head-visual img{width:100%;height:100%;object-fit:cover}
.head-badge{
  position:absolute;left:14px;bottom:14px;
  background:var(--green);color:#fff;
  border-radius:12px;
  padding:10px 14px;
  font-size:12px;font-weight:700;line-height:1.4;
  box-shadow:0 12px 26px -18px rgba(20,22,26,.6);
}
.head-badge strong{display:block;font-size:18px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- 主体排版 ---------- */
.section{padding:78px 0}
.section-tight{padding-top:56px}
.sec-head{max-width:760px;margin-bottom:34px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.article-shell{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:38px 44px;
}
.article-body{
  max-width:100%;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);
  font-weight:700;line-height:1.35;
  margin:44px 0 16px;color:var(--ink);
}
.article-body h3{
  font-size:20px;font-weight:600;line-height:1.45;
  margin:32px 0 12px;color:var(--ink);
}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--ink)}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--accent-dark);border-bottom:1px solid rgba(242,84,45,.35)}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body img{border-radius:var(--r-card);margin:22px 0;border:1px solid var(--line)}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:#FBF9F7;
  border-left:3px solid var(--accent);
  border-radius:0 12px 12px 0;
  color:var(--ink);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{list-style:none;margin:0 0 20px;padding:0}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:8px;height:8px;border-radius:2px;background:var(--green);
}
.article-body ol{list-style:none;counter-reset:olist;margin:0 0 20px;padding:0}
.article-body ol li{
  counter-increment:olist;position:relative;
  padding-left:38px;margin-bottom:12px;
}
.article-body ol li::before{
  content:counter(olist,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;
  font-size:15px;
}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:24px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
.article-body th{background:#FBF9F7;color:var(--ink);font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-empty{
  text-align:center;padding:64px 20px;
}
.article-empty i{font-size:34px;color:var(--disabled)}
.article-empty h3{margin-top:16px;font-size:20px;font-weight:700}
.article-empty p{margin-top:10px;color:var(--muted);font-size:15px}
.article-empty .btn-main{margin-top:24px}

/* 侧栏 */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-panel);box-shadow:var(--sh-1);
  padding:24px;
}
.side-card h3{font-size:16px;font-weight:800;margin-bottom:16px}
.side-links{display:flex;flex-direction:column;gap:4px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--text);
}
.side-links a:last-child{border-bottom:0}
.side-links a i{color:var(--disabled);font-size:12px;transition:transform .22s var(--ease),color .22s var(--ease)}
.side-links a:hover{color:var(--accent)}
.side-links a:hover i{color:var(--accent);transform:translateX(3px)}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.8}
.side-stat{
  display:flex;align-items:baseline;gap:8px;
  font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;
  font-size:32px;line-height:1;
}
.side-stat span{font-size:13px;font-weight:600;color:var(--muted)}
.side-cta{
  display:block;text-align:center;
  margin-top:16px;padding:12px;
  background:var(--ink);color:#fff;border-radius:var(--r-btn);
  font-size:14px;font-weight:700;
}
.side-cta:hover{background:var(--accent);color:#fff}

/* ---------- 相关推荐 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.post-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--sh-2)}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:#EFECE7}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:17px;font-weight:700;line-height:1.5;margin:12px 0 10px}
.post-card:hover .post-body h3{color:var(--accent)}
.post-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{
  margin-top:auto;padding-top:16px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}
.post-foot .more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--ink)}
.post-card:hover .post-foot .more{color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  width:100%;background:#fff;color:var(--ink);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:18px 22px;box-shadow:none;border:0;
  display:flex;align-items:center;gap:14px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--ink);
  background:#fff;
  box-shadow:inset 3px 0 0 var(--accent);
}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px}
.acc-icon{
  margin-left:auto;position:relative;flex:0 0 auto;
  width:16px;height:16px;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--muted);
  border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease),background-color .3s var(--ease);
}
.acc-icon::before{left:0;top:7px;width:16px;height:2px}
.acc-icon::after{left:7px;top:0;width:2px;height:16px}
.accordion-button:not(.collapsed) .acc-icon::before{background:var(--accent)}
.accordion-button:not(.collapsed) .acc-icon::after{transform:rotate(90deg);opacity:0;background:var(--accent)}
.faq-acc .accordion-body{
  padding:0 22px 22px;font-size:14.5px;line-height:1.85;color:var(--muted);
}

/* ---------- 转化表单 ---------- */
.cta-block{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:40px;align-items:start;
}
.form-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-panel);box-shadow:var(--sh-1);
  padding:32px;
}
.form-row{margin-bottom:18px}
.form-label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:8px}
.form-label .req{color:var(--accent);margin-left:4px}
.form-control,.form-select{
  width:100%;padding:12px 14px;min-height:46px;
  background:#FBF9F7;border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--text);font-size:15px;
  font-family:inherit;
  transition:border-color .22s var(--ease),background-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control::placeholder{color:var(--disabled)}
.form-control:focus,.form-select:focus{
  outline:none;background:#fff;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(242,84,45,.14);
}
textarea.form-control{min-height:110px;resize:vertical;line-height:1.7}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.form-submit{width:100%;margin-top:6px}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;
  background:rgba(31,111,92,.1);color:var(--green);
  border-radius:var(--r-btn);font-size:14px;font-weight:600;
}
.form-msg.show{display:block}
.cta-copy h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.cta-copy > p{margin-top:14px;color:var(--muted);font-size:15px}
.cta-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.cta-item{display:flex;gap:14px;align-items:flex-start}
.cta-item .dot{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;
  background:rgba(31,111,92,.12);color:var(--green);
  display:flex;align-items:center;justify-content:center;font-size:13px;
}
.cta-item h3{font-size:15.5px;font-weight:700;margin-bottom:4px}
.cta-item p{font-size:13.8px;color:var(--muted);line-height:1.75}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C9C6C1;padding:70px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);color:#fff}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800}
.site-footer p{font-size:13.5px;line-height:1.85;color:#A9A6A1}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#C9C6C1}
.footer-links a i{font-size:11px;color:#6E6B66;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.footer-links a:hover i{color:var(--accent);transform:translateX(3px)}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12.5px;color:#8B8883;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

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

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 280px}
}
@media (max-width:991px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex}
  .nav-panel{padding:10px 14px;gap:12px}
  .brand-name{font-size:16px}
  .head-card{grid-template-columns:minmax(0,1fr);padding:28px 24px;gap:24px}
  .head-visual{order:-1}
  .cta-block{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:60px 0}
  .article-shell{padding:30px 26px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .brand-name{font-size:15px;white-space:normal;line-height:1.3}
  .btn-main,.btn-ghost{padding:10px 16px;font-size:14px}
  .article-title{font-size:24px}
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding:52px 0}
  .section-tight{padding-top:40px}
  .article-shell{padding:24px 20px}
  .form-card{padding:24px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --flame:#F2542D;
  --flame-dark:#D8431F;
  --pine:#1F6F5C;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E6E2DC;
  --text:#2B2F36;
  --muted:#74716B;
  --disabled:#B6B2AC;
  --r-card:14px;
  --r-panel:16px;
  --r-btn:10px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04);
  --sh-2:0 14px 30px -20px rgba(20,22,26,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-color:#2B2F36;
  --bs-body-bg:#F7F5F2;
  --bs-primary:#F2542D;
  --bs-primary-rgb:242,84,45;
  --bs-border-color:#E6E2DC;
  --bs-border-radius:14px;
  --bs-link-color:#2B2F36;
  --bs-link-hover-color:#F2542D;
  --bs-emphasis-color:#14161A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--flame)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--flame);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sec{padding:96px 0}
.sec-alt{background:var(--card)}
.sec-dark{background:var(--ink);color:#EDEBE8}
.sec-dark h2,.sec-dark h3{color:#fff}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head p{margin-top:14px;font-size:15px;color:var(--muted)}
.sec-dark .sec-head p{color:#A8A5A0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--pine);background:rgba(31,111,92,.1);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.badge-soft{display:inline-block;font-size:12px;font-weight:600;border-radius:999px;padding:5px 12px;background:rgba(31,111,92,.1);color:var(--pine)}
.badge-flame{display:inline-block;font-size:12px;font-weight:600;border-radius:999px;padding:5px 12px;background:rgba(242,84,45,.12);color:var(--flame)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);position:relative;padding-bottom:2px}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--flame);transform:scaleX(0);transform-origin:left;transition:transform .26s var(--ease)}
.link-arrow:hover::after{transform:scaleX(1)}
.link-arrow:hover{color:var(--flame)}
.link-arrow i{transition:transform .26s var(--ease)}
.link-arrow:hover i{transform:translateX(3px)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;padding:14px 0 10px;background:rgba(247,245,242,.9);backdrop-filter:blur(10px)}
.nav-card{display:flex;align-items:center;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--sh-1);padding:10px 20px;min-height:68px}
.nav-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800;flex:0 0 auto}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);white-space:nowrap;letter-spacing:-.01em}
.nav-brand:hover .brand-name{color:var(--flame)}
.nav-pills{display:flex;align-items:center;justify-content:center;gap:8px;flex:1 1 auto}
.nav-pill{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border-radius:12px;background:#FBFAF8;border:1px solid transparent;color:#3A3E45;font-size:14px;font-weight:600;white-space:nowrap;transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),color .22s var(--ease)}
.nav-pill i{font-size:15px;color:var(--muted);transition:color .22s var(--ease)}
.nav-pill:hover{transform:translateY(-2px);border-color:var(--flame);background:#fff;color:var(--ink);box-shadow:var(--sh-2)}
.nav-pill:hover i{color:var(--flame)}
.nav-pill.active{background:#FEF0EB;color:var(--flame);border-color:rgba(242,84,45,.35)}
.nav-pill.active i{color:var(--flame)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);font-size:16px;transition:border-color .22s var(--ease),color .22s var(--ease)}
.nav-toggle:hover{border-color:var(--flame);color:var(--flame)}

/* 按钮 */
.btn-flame,.btn-ghost,.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .22s var(--ease),background .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease)}
.btn-flame{background:var(--flame);border-color:var(--flame);color:#fff;box-shadow:var(--sh-1)}
.btn-flame:hover{background:var(--flame-dark);border-color:var(--flame-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:transparent;border-color:var(--flame);color:var(--flame)}
.btn-line:hover{background:var(--flame);border-color:var(--flame);color:#fff;transform:translateY(-2px)}
.btn-block{width:100%}

/* 面包屑 */
.crumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--flame)}
.crumb .sep{color:var(--disabled)}
.crumb .cur{color:var(--ink);font-weight:600}

/* 首屏 */
.hero{padding:44px 0 0}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:52px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.22;letter-spacing:-.01em}
.hero-sub{font-size:17px;color:var(--muted);margin:18px 0 28px;max-width:540px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.trust span{font-size:13px;font-weight:600;color:#3A3E45;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;display:inline-flex;align-items:center;gap:7px}
.trust i{color:var(--pine);font-size:12px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh-1)}
.hero-badge{position:absolute;left:-14px;bottom:22px;background:var(--pine);color:#fff;border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);max-width:240px}
.hero-badge b{display:block;font-size:22px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.hero-badge span{font-size:12px;opacity:.88}

/* 导语卡 */
.lead-card{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--sh-1)}
.lead-text{padding:40px}
.lead-text h2{font-size:clamp(22px,2.4vw,30px)}
.lead-text p{margin-top:16px;font-size:15px;color:var(--muted)}
.lead-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.lead-media{position:relative;min-height:260px}
.lead-media img{width:100%;height:100%;object-fit:cover}

/* 步骤区 */
.steps-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:40px;align-items:start}
.toc{position:sticky;top:108px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--sh-1)}
.toc h4{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;margin-bottom:12px}
.toc a{display:flex;gap:10px;align-items:baseline;padding:10px 0;font-size:14px;color:#3A3E45;border-bottom:1px dashed var(--line);transition:color .22s var(--ease),padding-left .22s var(--ease)}
.toc a:last-of-type{border-bottom:0}
.toc a b{color:var(--flame);font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;flex:0 0 auto}
.toc a:hover{color:var(--flame);padding-left:4px}
.toc .btn-line{margin-top:16px;width:100%;font-size:14px;padding:10px 16px}
.steps-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.item-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);scroll-margin-top:110px;transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease)}
.item-card:hover{transform:translateY(-4px);border-color:var(--flame);box-shadow:var(--sh-2)}
.item-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.item-no{font-size:26px;font-weight:800;color:var(--flame);line-height:1;font-variant-numeric:tabular-nums}
.item-card h3{font-size:19px;margin-bottom:10px}
.item-card p{font-size:14.5px;line-height:1.75;color:var(--muted)}

/* 对比 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;box-shadow:var(--sh-1)}
.cmp-card.best{border-color:var(--flame);box-shadow:0 16px 34px -24px rgba(242,84,45,.55)}
.cmp-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.cmp-list li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:#3A3E45}
.cmp-list li:last-child{border-bottom:0}
.cmp-list i{margin-top:6px;font-size:12px;flex:0 0 auto}
.cmp-card .plain i{color:var(--disabled)}
.cmp-card.best i{color:var(--pine)}

/* 指标条 */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid rgba(255,255,255,.12);border-radius:16px;overflow:hidden;background:rgba(255,255,255,.03)}
.metric{padding:32px 26px;border-right:1px solid rgba(255,255,255,.1)}
.metric:last-child{border-right:0}
.metric b{display:block;font-size:clamp(30px,3.6vw,44px);font-weight:800;color:var(--flame);line-height:1.1;font-variant-numeric:tabular-nums}
.metric span{display:block;margin-top:10px;font-size:13.5px;color:#B9B6B0}

/* FAQ */
.faq .accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1)}
.faq .accordion-button{background:#fff;color:var(--ink);font-size:17px;font-weight:600;padding:20px 24px;box-shadow:none;border:0;position:relative;line-height:1.6}
.faq .accordion-button:not(.collapsed){color:var(--flame);background:#fff;box-shadow:none}
.faq .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--flame)}
.faq .accordion-button::after{content:"+";background-image:none;font-size:22px;font-weight:400;color:var(--flame);width:auto;height:auto;line-height:1;display:flex;align-items:center;justify-content:center;transition:transform .26s var(--ease)}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq .accordion-body{padding:0 24px 22px;font-size:14.5px;line-height:1.8;color:var(--muted)}

/* 转化表单 */
.cta-card{display:grid;grid-template-columns:1.05fr .95fr;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--sh-1)}
.cta-form{padding:44px}
.cta-aside{padding:44px;background:var(--bg);border-left:1px solid var(--line)}
.cta-aside h3{font-size:18px;margin-bottom:16px}
.cta-aside ul li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#3A3E45;padding:8px 0}
.cta-aside i{color:var(--pine);font-size:12px;margin-top:7px}
.cta-aside .aside-note{margin-top:24px;padding-top:20px;border-top:1px dashed var(--line);font-size:14px;color:var(--muted)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--flame);margin-left:4px}
.form-control,.form-select{border:1px solid var(--line);border-radius:var(--r-input);padding:12px 14px;font-size:15px;background:#FBFAF8;color:var(--text);min-height:46px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease)}
.form-control::placeholder{color:var(--disabled)}
.form-control:focus,.form-select:focus{border-color:var(--flame);background:#fff;box-shadow:0 0 0 3px rgba(242,84,45,.14)}
.form-tip{margin-top:16px;font-size:14px;color:var(--pine);background:rgba(31,111,92,.1);border-radius:10px;padding:12px 16px}
.form-hint{font-size:13px;color:var(--muted);margin-top:12px}

/* Offcanvas */
.offcanvas{background:var(--bg)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.oc-title{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:15px}
.oc-pills{display:flex;flex-direction:column;gap:10px}
.oc-pill{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:15px;font-weight:600;color:var(--ink);min-height:48px}
.oc-pill i{color:var(--flame);width:20px;text-align:center}
.oc-pill.active{background:#FEF0EB;border-color:rgba(242,84,45,.35);color:var(--flame)}

/* 页脚 */
.site-footer{background:var(--ink);color:#C9C6C1;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:52px}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--flame)}
.footer-brand .brand-name{color:#fff;font-size:16px}
.site-footer p{font-size:14px;line-height:1.8;color:#A8A5A0;margin:0 0 8px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#C9C6C1;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-links a i{font-size:11px;color:var(--flame)}
.footer-links a:hover{color:var(--flame);transform:translateX(3px)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8E8B86}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.in{opacity:1;transform:none}

@media (max-width:1199.98px){
  .nav-pills{display:none}
}
@media (max-width:991.98px){
  .sec{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero{padding:32px 0 0}
  .lead-card{grid-template-columns:1fr}
  .lead-media{min-height:220px;order:-1}
  .steps-layout{grid-template-columns:1fr}
  .toc{position:static}
  .compare{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid rgba(255,255,255,.1)}
  .cta-card{grid-template-columns:1fr}
  .cta-aside{border-left:0;border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .wrap{padding:0 18px}
  .sec{padding:56px 0}
  .nav-card{padding:8px 12px;gap:10px;min-height:62px}
  .brand-name{font-size:14px}
  .brand-mark{width:30px;height:30px;font-size:14px;border-radius:9px}
  .steps-grid{grid-template-columns:1fr}
  .hero-badge{left:10px;bottom:12px;padding:12px 14px;max-width:200px}
  .hero-badge b{font-size:18px}
  .lead-text{padding:26px 20px}
  .item-card{padding:22px}
  .cmp-card{padding:24px 20px}
  .metric{padding:22px 18px}
  .cta-form,.cta-aside{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#14161A;
  --orange:#F2542D;
  --orange-deep:#D8431F;
  --green:#1F6F5C;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E6E2DC;
  --text:#2B2F36;
  --muted:#74716B;
  --disabled:#B6B2AC;
  --r-card:14px;
  --r-nav:16px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(20,22,26,.04);
  --sh2:0 14px 30px -20px rgba(20,22,26,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --wrap:1200px;
  --bs-primary:#F2542D;
  --bs-body-bg:#F7F5F2;
  --bs-body-color:#2B2F36;
  --bs-border-color:#E6E2DC;
  --bs-border-radius:10px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease)}
a:hover{color:var(--orange)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--orange);outline-offset:2px;
}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-white{background:var(--card)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.32}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--green);background:rgba(31,111,92,.1);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:12px}
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .32s var(--ease),transform .32s var(--ease)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  padding:14px 0;
  background:rgba(247,245,242,.92);
  backdrop-filter:blur(10px);
}
.header-inner{
  max-width:var(--wrap);margin:0 auto;
  padding:10px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh1);
  display:flex;align-items:center;gap:18px;
}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;
  background:var(--ink);color:#fff;font-weight:800;font-size:17px;
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.nav-cards{display:flex;align-items:center;gap:8px;margin:0 auto}
.nav-card{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 14px;
  border-radius:12px;border:1px solid transparent;
  background:#F7F5F2;color:var(--text);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.nav-card i{font-size:15px;color:var(--muted);transition:color .22s var(--ease)}
.nav-card:hover{transform:translateY(-2px);border-color:var(--orange);color:var(--ink);background:#fff}
.nav-card:hover i{color:var(--orange)}
.nav-card.active{
  background:rgba(242,84,45,.09);
  border-color:rgba(242,84,45,.34);
  color:var(--orange-deep);
  box-shadow:inset 3px 0 0 var(--orange);
}
.nav-card.active i{color:var(--orange-deep)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{
  background:var(--orange);color:#fff;border-color:var(--orange);
}
.btn-primary:hover{background:var(--orange-deep);border-color:var(--orange-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh2)}
.btn-outline{
  background:transparent;color:var(--ink);border-color:var(--ink);
}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-ghost{
  background:#fff;color:var(--ink);border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:2px solid rgba(242,84,45,.5);padding-bottom:2px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.link-arrow:hover{color:var(--orange);border-color:var(--orange)}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);padding-top:22px;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--orange)}
.crumb .sep{color:var(--disabled)}
.crumb .current{color:var(--ink);font-weight:600}

/* ============ 内页首屏 ============ */
.page-hero{padding:34px 0 84px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.22;letter-spacing:-.01em;
}
.hero-copy .lead{margin-top:20px;font-size:17px;color:var(--muted);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.trust-tags li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:var(--green);
  background:rgba(31,111,92,.09);border-radius:999px;padding:7px 14px;
}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-nav);border:1px solid var(--line);box-shadow:var(--sh1);
}
.badge-float{
  position:absolute;left:-14px;bottom:-16px;
  background:var(--green);color:#fff;
  border-radius:14px;padding:14px 18px;box-shadow:var(--sh2);
  min-width:172px;
}
.badge-float strong{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.2}
.badge-float span{font-size:12px;opacity:.9}

/* ============ 指标条 ============ */
.metrics-dark{background:var(--ink);padding:0}
.metrics-row{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:rgba(255,255,255,.14);
  border-radius:var(--r-card);overflow:hidden;
  margin:56px 0;
}
.metric{background:var(--ink);padding:34px 28px}
.metric-num{
  font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.1;
  color:var(--orange);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.metric-num small{font-size:16px;font-weight:600;color:rgba(255,255,255,.72);margin-left:6px;letter-spacing:0}
.metric p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.68)}

/* ============ 拼贴栅格 ============ */
.collage{
  display:grid;grid-template-columns:repeat(3,1fr);
  grid-auto-rows:minmax(150px,auto);gap:24px;
}
.tile{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:26px;position:relative;
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
  display:flex;flex-direction:column;gap:12px;
}
.tile:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh2)}
.tile h3{font-size:20px;font-weight:700;line-height:1.4}
.tile p{font-size:14.5px;color:var(--muted);line-height:1.75}
.tile .icon-chip{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,111,92,.1);color:var(--green);font-size:17px;
}
.tile-lg{grid-column:1 / 3;grid-row:1 / 3;padding:0;overflow:hidden;gap:0}
.tile-lg img{width:100%;height:280px;object-fit:cover}
.tile-lg .lg-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1}
.tile-lg h3{font-size:22px}
.tile-sm1{grid-column:3;grid-row:1}
.tile-sm2{grid-column:3;grid-row:2}
.tile-sm3{grid-column:1;grid-row:3}
.tile-bar1{grid-column:2 / 4;grid-row:3;flex-direction:row;align-items:center;gap:20px}
.tile-bar2{grid-column:1 / 4;grid-row:4;flex-direction:row;align-items:center;gap:20px}
.tile-bar1 .bar-text,.tile-bar2 .bar-text{flex:1;display:flex;flex-direction:column;gap:6px}
.tile-bar1 h3,.tile-bar2 h3{font-size:19px}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;border-radius:999px;padding:5px 12px;
  background:rgba(242,84,45,.12);color:var(--orange-deep);align-self:flex-start;
}
.badge-soft.green{background:rgba(31,111,92,.12);color:var(--green)}

/* ============ 更新流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 22px;box-shadow:var(--sh1);
  transition:transform .26s var(--ease),border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:var(--sh2)}
.step-no{
  font-size:15px;font-weight:800;color:var(--orange);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;
}
.step h3{margin-top:12px;font-size:18px;font-weight:700}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-list{max-width:900px}
.accordion-item{
  background:var(--card);border:1px solid var(--line)!important;
  border-radius:var(--r-card)!important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--sh1);
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(242,84,45,.45)!important;box-shadow:inset 3px 0 0 var(--orange),var(--sh1)}
.accordion-button{
  background:var(--card);color:var(--ink);
  font-size:16.5px;font-weight:600;line-height:1.6;
  padding:20px 22px;box-shadow:none!important;border-radius:var(--r-card)!important;
}
.accordion-button:not(.collapsed){background:var(--card);color:var(--ink)}
.accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;font-size:13px;color:var(--orange);
  width:auto;height:auto;transform:rotate(0);transition:transform .26s var(--ease);flex:0 0 auto;margin-left:16px;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(180deg)}
.accordion-body{
  padding:0 22px 22px;font-size:14.5px;color:var(--muted);line-height:1.8;
}

/* ============ 描边 CTA ============ */
.cta-outline{
  padding:88px 0;
  background-image:linear-gradient(rgba(247,245,242,.94),rgba(247,245,242,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.cta-bar{
  border:2px solid var(--ink);border-radius:var(--r-nav);
  background:rgba(255,255,255,.72);backdrop-filter:blur(6px);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-bar h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35}
.cta-bar p{margin-top:12px;color:var(--muted);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ============ 移动端抽屉 ============ */
.nav-drawer{background:var(--bg);width:min(360px,86vw)}
.nav-drawer .offcanvas-header{
  padding:18px 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:16px;
}
.drawer-close:hover{border-color:var(--orange);color:var(--orange)}
.nav-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:12px}
.drawer-cards{display:flex;flex-direction:column;gap:10px;margin-bottom:8px}
.drawer-cards .nav-card{width:100%;justify-content:flex-start;background:#fff;border-color:var(--line)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:var(--orange);color:#fff}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:800}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62)}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{display:inline-flex;align-items:center;gap:8px;color:rgba(255,255,255,.68);font-size:14px}
.footer-links a i{font-size:11px;color:var(--orange)}
.footer-links a:hover{color:var(--orange)}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .header-inner{padding:10px 16px;gap:14px}
  .nav-card{padding:0 12px;font-size:13.5px}
  .nav-card span{white-space:nowrap}
  .hero-grid{gap:40px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:34px}
  .footer-grid > div:last-child{grid-column:1 / -1}
}
@media (max-width:991px){
  .nav-cards{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .header-inner{justify-content:space-between}
  .section{padding:68px 0}
  .page-hero{padding:24px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media img{aspect-ratio:16/10}
  .badge-float{left:14px;bottom:-14px}
  .collage{grid-template-columns:repeat(2,1fr)}
  .tile-lg{grid-column:1 / -1;grid-row:auto}
  .tile-sm1,.tile-sm2,.tile-sm3{grid-column:auto;grid-row:auto}
  .tile-bar1,.tile-bar2{grid-column:1 / -1;grid-row:auto}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:32px 28px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-grid > div:first-child{grid-column:1 / -1}
  .footer-grid > div:last-child{grid-column:1 / -1}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .wrap{padding:0 18px}
  .section{padding:52px 0}
  .section-head{margin-bottom:32px}
  .metrics-row{grid-template-columns:1fr;margin:44px 0}
  .metric{padding:26px 22px;border-bottom:1px solid rgba(255,255,255,.14)}
  .metric:last-child{border-bottom:none}
  .collage{grid-template-columns:1fr;gap:18px}
  .steps{grid-template-columns:1fr;gap:18px}
  .tile-bar1,.tile-bar2{flex-direction:column;align-items:flex-start;gap:14px}
  .tile-lg img{height:220px}
  .cta-outline{padding:56px 0}
  .hero-cta .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --ink:#14161A;
  --accent:#F2542D;
  --accent-dark:#D8431F;
  --green:#1F6F5C;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E6E2DC;
  --text:#2B2F36;
  --muted:#74716B;
  --disabled:#B6B2AC;
  --r-card:14px;
  --r-panel:16px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04);
  --sh-2:0 14px 30px -20px rgba(20,22,26,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;

  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-color:#2B2F36;
  --bs-body-bg:#F7F5F2;
  --bs-body-line-height:1.85;
  --bs-border-color:#E6E2DC;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-xl:16px;
  --bs-primary:#F2542D;
  --bs-link-color:#2B2F36;
  --bs-link-hover-color:#F2542D;
  --bs-emphasis-color:#14161A;
  --bs-secondary-color:#74716B;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--text);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:14px 0 10px;
  background:linear-gradient(180deg,rgba(247,245,242,.96) 68%,rgba(247,245,242,0));
  backdrop-filter:blur(8px);
}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:10px 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-height:44px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;letter-spacing:0;
}
.brand-name{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:8px 14px;
  border-radius:12px;
  border:1px solid transparent;
  background:#FAF8F5;
  font-size:14px;font-weight:600;color:var(--text);
  white-space:nowrap;
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.nav-card i{font-size:15px;color:var(--muted);transition:color .22s var(--ease);}
.nav-card:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent);background:#fff;}
.nav-card:hover i{color:var(--accent);}
.nav-card.is-active{
  background:rgba(242,84,45,.09);
  border-color:rgba(242,84,45,.32);
  color:var(--accent);
}
.nav-card.is-active i{color:var(--accent);}
.nav-card.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:3px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:17px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* ============ 按钮 ============ */
.btn-accent,.btn-ghost,.btn-dark-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:#fff;}
.btn-dark-ink{background:var(--ink);color:#fff;}
.btn-dark-ink:hover{background:#000;color:#fff;box-shadow:var(--sh-2);}
.btn-sm{padding:0 16px;min-height:44px;font-size:14px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--ink);
  padding-bottom:2px;border-bottom:2px solid transparent;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);
  padding:6px 0 0;
}
.crumb .sep{color:var(--disabled);}
.crumb span:last-child{color:var(--text);font-weight:600;}

/* ============ 首屏 ============ */
.page-hero{padding:36px 0 0;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--green);
  background:rgba(31,111,92,.1);
  border-radius:999px;padding:6px 14px;
}
.page-hero h1{
  margin-top:18px;
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;line-height:1.22;letter-spacing:-.01em;
}
.lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:30em;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  font-size:13px;font-weight:600;color:var(--ink);
  background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 15px;
  display:inline-flex;align-items:center;gap:7px;
}
.tag i{color:var(--green);font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.media-badge{
  position:absolute;left:-14px;bottom:22px;
  background:var(--green);color:#fff;
  border-radius:var(--r-card);
  padding:12px 18px;
  box-shadow:var(--sh-2);
  min-width:170px;
}
.media-badge strong{display:block;font-size:15px;font-weight:800;line-height:1.3;}
.media-badge span{font-size:12px;opacity:.86;}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-white{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;}
.section-head p{margin-top:14px;color:var(--muted);font-size:15.5px;}
.section-head .rule{width:52px;height:4px;border-radius:3px;background:var(--accent);margin-bottom:20px;}

/* ============ 条目流 ============ */
.flow-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:0 44px;
}
.flow-item{
  display:grid;
  grid-template-columns:88px 1fr 232px;
  gap:34px;
  align-items:start;
  padding:44px 0;
  border-bottom:1px solid var(--line);
  transition:background .28s var(--ease);
}
.flow-item:last-child{border-bottom:0;}
.flow-num{
  font-size:38px;font-weight:800;line-height:1;
  color:var(--accent);
  letter-spacing:-.02em;
  padding-top:6px;
}
.flow-body h3{font-size:21px;font-weight:600;line-height:1.5;}
.flow-body h3 a:hover{color:var(--accent);}
.flow-body p.sum{margin-top:12px;font-size:15px;line-height:1.85;color:var(--muted);}
.flow-points{margin-top:18px;display:grid;gap:10px;}
.flow-points li{
  display:flex;gap:10px;font-size:14.5px;color:var(--text);line-height:1.7;
}
.flow-points li i{color:var(--green);font-size:13px;margin-top:7px;}
.flow-thumb img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);
  border:1px solid var(--line);
}

/* ============ 对照条 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.compare-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:34px 34px 30px;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.compare-card.solution{border-color:var(--accent);}
.compare-card h3{font-size:20px;display:flex;align-items:center;gap:10px;}
.compare-card h3 i{font-size:16px;color:var(--muted);}
.compare-card.solution h3 i{color:var(--accent);}
.compare-card ul{margin-top:22px;display:grid;gap:16px;}
.compare-card li{
  display:flex;gap:12px;font-size:14.5px;line-height:1.75;
  padding-bottom:16px;border-bottom:1px dashed var(--line);
}
.compare-card li:last-child{border-bottom:0;padding-bottom:0;}
.dot{
  flex:0 0 auto;width:8px;height:8px;border-radius:3px;margin-top:9px;
  background:var(--disabled);
}
.solution .dot{background:var(--green);}

/* ============ FAQ ============ */
.faq .accordion-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease);
}
.faq .accordion-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:3px;background:transparent;
  transition:background .24s var(--ease);
}
.faq .accordion-item.is-open{border-color:rgba(242,84,45,.4);}
.faq .accordion-item.is-open::before{background:var(--accent);}
.faq .accordion-button{
  background:transparent;
  box-shadow:none;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:20px 22px 20px 24px;
  line-height:1.6;
  display:flex;align-items:center;gap:14px;width:100%;
}
.faq .accordion-button:not(.collapsed){background:transparent;color:var(--ink);}
.faq .accordion-button::after{display:none;}
.faq-icon{
  margin-left:auto;flex:0 0 auto;
  width:30px;height:30px;border-radius:9px;
  background:#FAF8F5;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.faq-icon i{font-size:12px;color:var(--muted);transition:transform .28s var(--ease),color .24s var(--ease);}
.accordion-button:not(.collapsed) .faq-icon{background:rgba(242,84,45,.1);border-color:rgba(242,84,45,.35);}
.accordion-button:not(.collapsed) .faq-icon i{color:var(--accent);transform:rotate(45deg);}
.faq .accordion-body{
  padding:0 72px 24px 24px;
  font-size:14.5px;line-height:1.8;color:var(--muted);
}

/* ============ 转化表单 ============ */
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start;}
.cta-aside h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;}
.cta-aside p{margin-top:16px;color:var(--muted);font-size:15.5px;max-width:26em;}
.cta-list{margin-top:26px;display:grid;gap:14px;}
.cta-list li{display:flex;gap:11px;font-size:14.5px;align-items:flex-start;}
.cta-list li i{color:var(--green);font-size:13px;margin-top:7px;}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:34px;
  box-shadow:var(--sh-1);
}
.form-row{margin-bottom:20px;}
.form-row label{
  display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;
}
.form-row label .req{color:var(--accent);margin-left:3px;}
.form-control,.form-select{
  width:100%;
  min-height:46px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FCFBFA;
  font-size:15px;color:var(--text);
  padding:10px 14px;
  font-family:var(--font);
  transition:border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.form-control:focus,.form-select:focus{
  border-color:var(--accent);
  background:#fff;
  box-shadow:0 0 0 3px rgba(242,84,45,.12);
  outline:none;
}
textarea.form-control{min-height:104px;resize:vertical;line-height:1.75;}
.form-err{display:none;font-size:13px;color:var(--accent);margin-top:6px;}
.form-row.has-error .form-control,
.form-row.has-error .form-select{border-color:var(--accent);background:rgba(242,84,45,.04);}
.form-row.has-error .form-err{display:block;}
.form-note{font-size:13px;color:var(--muted);margin-top:16px;}
.form-ok{
  display:none;margin-top:18px;font-size:14px;color:var(--green);
  background:rgba(31,111,92,.09);border-radius:var(--r-btn);padding:12px 16px;
}
.form-ok.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C9C6C1;padding:76px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{background:var(--accent);}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:800;}
.site-footer p{font-size:14px;line-height:1.85;color:#9C9993;max-width:26em;}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.01em;}
.footer-links{display:grid;gap:12px;}
.footer-links a{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:#B8B4AE;transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-links a i{font-size:12px;color:#5A5751;transition:color .22s var(--ease);}
.footer-links a:hover{color:var(--accent);transform:translateX(3px);}
.footer-links a:hover i{color:var(--accent);}
.footer-bottom{
  margin-top:56px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#7E7B75;
}

/* ============ 移动抽屉 ============ */
.nav-drawer{background:var(--bg);width:320px;border-left:1px solid var(--line);}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.nav-drawer .offcanvas-body{padding:22px;display:flex;flex-direction:column;}
.drawer-cards{display:grid;gap:10px;}
.drawer-cards .nav-card{width:100%;justify-content:flex-start;background:#fff;border-color:var(--line);}
.drawer-cards .nav-card.is-active{background:rgba(242,84,45,.09);}
.drawer-cta{margin-top:auto;padding-top:24px;}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .32s var(--ease),transform .32s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .flow-item{grid-template-columns:72px 1fr 200px;gap:26px;}
  .flow-panel{padding:0 32px;}
}
@media (max-width:991.98px){
  .nav-cards{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-accent{display:none;}
  .nav-panel{padding:10px 18px;gap:12px;}
  .brand{margin-right:auto;}
  .page-hero{padding-top:24px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .media-badge{left:16px;bottom:16px;}
  .section{padding:64px 0;}
  .section.tight{padding:56px 0;}
  .flow-panel{padding:0 26px;}
  .flow-item{grid-template-columns:64px 1fr;gap:20px;}
  .flow-thumb{grid-column:1 / -1;max-width:340px;}
  .compare-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:767.98px){
  .wrap{padding:0 18px;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:32px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .lead{font-size:16px;}
  .flow-panel{padding:0 18px;border-radius:var(--r-card);}
  .flow-item{padding:34px 0;}
  .flow-num{font-size:30px;padding-top:2px;}
  .flow-body h3{font-size:19px;}
  .flow-thumb{max-width:100%;}
  .faq .accordion-button{font-size:16px;padding:18px 16px 18px 18px;}
  .faq .accordion-body{padding:0 44px 20px 18px;}
  .form-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding:56px 0 24px;margin-top:64px;}
  .btn-accent,.btn-ghost,.btn-dark-ink{width:100%;}
  .hero-actions .btn-accent,.hero-actions .btn-ghost{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}