/* roulang page: index */
:root{
  --brand:#FF5A1F;
  --brand-700:#D93F0B;
  --accent:#00D3A7;
  --ink:#101114;
  --bg:#FAF7F3;
  --text:#1A1B1F;
  --muted:#5A5F6B;
  --line:#E7E2DA;
  --r-card:20px;
  --r-media:16px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(16,17,20,.05);
  --shadow-2:0 14px 34px -16px rgba(16,17,20,.18);
  --shadow-brand:0 12px 30px -12px rgba(255,90,31,.45);
}
*,*::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:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,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}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.tnum{font-variant-numeric:tabular-nums}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,247,243,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px -18px rgba(16,17,20,.35)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:-.01em}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow-brand)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--muted);padding:8px 0;transition:color .2s ease}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 24px;border-radius:var(--r-chip);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#ff6d36;transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:rgba(16,17,20,.08)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(16,17,20,.45)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px}
.btn-link:hover{text-decoration:underline;text-underline-offset:5px}

/* ---------- 通用文字 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;font-weight:600;color:var(--brand-700);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.eyebrow-light{color:#FFD8C6}
.eyebrow-light::before{background:var(--brand)}
.h1{
  font-size:clamp(2.5rem,6.2vw,5rem);line-height:1.05;font-weight:800;letter-spacing:-.03em;
}
.h2{
  font-size:clamp(1.75rem,3.1vw,2.6rem);line-height:1.18;font-weight:700;letter-spacing:-.02em;margin-top:14px;
}
.h2-light{color:#fff}
.lead{font-size:16px;line-height:1.9;color:var(--muted);margin-top:16px;max-width:640px}
.lead-light{color:rgba(250,247,243,.72)}

/* ---------- Hero ---------- */
.hero{padding:56px 0 64px;position:relative;overflow:hidden}
@media (min-width:1024px){.hero{padding:88px 0 104px}}
.hero::before{
  content:"";position:absolute;top:-120px;right:-160px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(255,90,31,.10),rgba(255,90,31,0) 68%);
  pointer-events:none;
}
.hero-grid{display:grid;gap:40px;position:relative}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}}
.hero-title{margin-top:20px;max-width:14em}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);margin-top:20px;max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:32px}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:44px}
.hero-fact strong{display:block;font-size:26px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums;color:var(--ink)}
.hero-fact span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;box-shadow:var(--shadow-2)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(to bottom,rgba(16,17,20,.42),rgba(16,17,20,.04) 32%,rgba(16,17,20,0) 58%,rgba(16,17,20,.72));
}
.hero-steps{position:absolute;left:22px;top:24px;z-index:2;display:flex;flex-direction:column;gap:8px}
.hero-steps li{display:flex;flex-direction:column;align-items:center;gap:6px}
.hero-steps span{font-size:12px;letter-spacing:.1em;color:#fff;font-variant-numeric:tabular-nums;text-shadow:0 2px 10px rgba(0,0,0,.5)}
.hero-steps i{display:block;width:1px;height:16px;background:rgba(255,255,255,.6)}
.hero-steps li:last-child i{display:none}
.hero-visual-caption{position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#fff}
.hero-visual-caption strong{display:block;font-size:17px;font-weight:700}
.hero-visual-caption span{font-size:13px;color:rgba(255,255,255,.82)}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:80px 0}}
@media (min-width:1024px){.section{padding:104px 0}}
.section-ink{background:var(--ink);color:#fff}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px}

/* ---------- 清单式排版 ---------- */
.row-list{border-top:1px solid var(--line)}
.row-item{display:grid;grid-template-columns:52px 1fr;gap:16px;padding:22px 12px;border-bottom:1px solid var(--line);transition:background .2s ease}
.row-item:hover{background:rgba(16,17,20,.03)}
.row-num{font-size:15px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.row-title{font-size:18px;font-weight:600;line-height:1.45}
.row-desc{font-size:14px;line-height:1.75;color:var(--muted);margin-top:6px}
@media (min-width:768px){
  .row-item{grid-template-columns:64px 220px 1fr;align-items:baseline;padding:24px 14px}
  .row-desc{margin-top:0}
}

.media{border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1)}
.media img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2}

/* ---------- 数据块 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat-item{padding:24px 18px;border-left:1px solid rgba(255,255,255,.1)}
.stat-grid > .stat-item:first-child{border-left:0}
@media (max-width:767px){
  .stat-item{border-left:0;border-top:1px solid rgba(255,255,255,.1)}
  .stat-grid > .stat-item:first-child{border-top:0}
  .stat-grid > .stat-item:nth-child(2){border-top:0}
}
.stat-num{font-size:clamp(2rem,4.4vw,3.25rem);font-weight:800;letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:#fff;line-height:1.1}
.stat-label{font-size:13px;line-height:1.7;color:rgba(250,247,243,.68);margin-top:10px}

/* ---------- 卡片 ---------- */
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;
  transition:transform .3s ease, box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{display:block;border-radius:var(--r-media);overflow:hidden;background:#f1ede8;aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  padding:3px 12px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;color:#0A8C72;
  background:rgba(0,211,167,.09);border:1px solid rgba(0,211,167,.4);
}
.card-title{font-size:18px;font-weight:600;line-height:1.48;margin-top:14px}
.card-text{font-size:14px;line-height:1.75;color:var(--muted);margin-top:8px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:18px;font-size:13px;color:var(--muted)}
.arrow{transition:transform .25s ease;color:var(--brand)}
.card:hover .arrow{transform:translateX(4px)}
.card-link{display:flex;flex-direction:column;height:100%}
.card-link .card-title{color:var(--ink)}
.card-link:hover .card-title{color:var(--brand-700)}

/* ---------- 头条大卡 ---------- */
.feature-card{display:grid;padding:0;overflow:hidden}
@media (min-width:900px){.feature-card{grid-template-columns:1.15fr 1fr}}
.feature-media{overflow:hidden;background:#f1ede8}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:21/9;transition:transform .4s ease}
@media (min-width:900px){.feature-media img{aspect-ratio:auto;min-height:340px}}
.feature-card:hover .feature-media img{transform:scale(1.03)}
.feature-body{padding:26px;display:flex;flex-direction:column}
@media (min-width:1024px){.feature-body{padding:34px}}
.feature-body h3{font-size:22px;font-weight:700;line-height:1.4;margin-top:16px}
.feature-body p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:12px}

/* ---------- 步骤 / 时间轴 ---------- */
.steps{max-width:820px;margin-top:44px}
.step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:12px;padding-bottom:38px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:19px;top:52px;bottom:6px;width:1px;background:var(--line)}
.step:last-child::before{display:none}
.step-num{font-size:26px;font-weight:800;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.step h3{font-size:19px;font-weight:600;line-height:1.45}
.step p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:8px;max-width:52em}

/* ---------- 最新信息 ---------- */
.latest-grid{display:grid;gap:22px;margin-top:40px}
@media (min-width:768px){.latest-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){
  .latest-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .latest-grid > .card:first-child{grid-column:span 2}
  .latest-grid > .card:first-child .card-media{aspect-ratio:21/9}
}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;text-align:center;
}
.empty-state p{font-size:15px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:20px 0;text-align:left;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{position:relative;flex:0 0 24px;width:24px;height:24px;transition:transform .26s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:11px;width:24px;height:2px}
.faq-icon::after{left:11px;top:0;width:2px;height:24px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a p{font-size:15px;line-height:1.9;color:var(--muted);padding:0 0 22px;max-width:66em}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;gap:36px}
@media (min-width:1024px){.contact-grid{grid-template-columns:5fr 7fr;gap:56px}}
.info-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-list li:first-child{border-top:1px solid var(--line)}
.info-icon{flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:rgba(255,90,31,.1);display:flex;align-items:center;justify-content:center;color:var(--brand)}
.info-list strong{display:block;font-size:14px;font-weight:600;color:var(--muted)}
.info-list span{font-size:16px;font-weight:600}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1)}
@media (min-width:1024px){.form-card{padding:36px}}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.input{
  width:100%;height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:15px;font-family:inherit;
  transition:border-color .2s ease, box-shadow .2s ease;
}
textarea.input{height:auto;padding:12px 14px;line-height:1.7;resize:vertical;min-height:112px}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,31,.12)}
select.input{
  appearance:none;-webkit-appearance:none;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235A5F6B' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.form-note{font-size:13px;color:var(--muted);margin-top:14px}
.form-msg{display:none;margin-top:14px;font-size:14px;font-weight:600;color:#0A8C72}

/* ---------- CTA 横条 ---------- */
.cta-band{
  background:var(--brand);color:#fff;border-radius:24px;padding:36px 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-brand);
}
@media (min-width:1024px){.cta-band{padding:48px 52px}}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:700;line-height:1.25;letter-spacing:-.02em;color:#fff}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.88);margin-top:10px;max-width:44em}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(250,247,243,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(250,247,243,.6);margin-top:16px;max-width:30em}
.footer-title{font-size:13px;letter-spacing:.1em;color:rgba(250,247,243,.5);font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(250,247,243,.78);transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(250,247,243,.78)}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(250,247,243,.5);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:flex;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 24px -20px rgba(16,17,20,.5);
}
.mobile-tab a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;min-height:56px;font-size:11px;color:var(--muted);transition:color .2s ease;
}
.mobile-tab a.is-active{color:var(--brand)}
.mobile-tab a.is-active::before{content:"";position:absolute;top:0;width:18px;height:2px;border-radius:2px;background:var(--brand)}
@media (min-width:768px){.mobile-tab{display:none}}
@media (max-width:767px){
  body{padding-bottom:72px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .hero-facts{gap:24px}
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s cubic-bezier(.2,.7,.2,1), transform .42s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#FF5A1F;
  --brand-700:#D93F0B;
  --brand-soft:rgba(255,90,31,.10);
  --accent:#00D3A7;
  --ink:#101114;
  --bg:#FAF7F3;
  --surface:#FFFFFF;
  --text:#1A1B1F;
  --muted:#5A5F6B;
  --line:#E7E2DA;
  --r-card:20px;
  --r-media:16px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(16,17,20,.05);
  --shadow-2:0 14px 34px -16px rgba(16,17,20,.18);
  --shadow-brand:0 12px 30px -12px rgba(255,90,31,.45);
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
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:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{list-style:none;padding:0;}
.tnum{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.94);
  transition:box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  backdrop-filter:blur(10px);
  box-shadow:0 8px 24px -20px rgba(16,17,20,.35);
}
.nav{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.brand-mark{
  width:32px;height:32px;border-radius:11px;
  background:linear-gradient(135deg,#FF7A3D,var(--brand));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-brand);
  flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--muted);transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--ink);background:rgba(16,17,20,.05);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.nav-cta{margin-left:6px;}
@media (max-width:959px){
  .nav-links,.nav-cta{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-chip);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s cubic-bezier(.2,.7,.2,1),background .2s,box-shadow .2s,color .2s;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-brand);}
.btn-primary:hover{background:#FF7240;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px -12px rgba(255,90,31,.6);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:rgba(16,17,20,.06);transform:translateY(-1px);}
.btn-ink{background:var(--ink);color:#fff;}
.btn-ink:hover{background:#22242b;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}

/* ---------- 面包屑 ---------- */
.crumb-wrap{border-bottom:1px solid var(--line);background:var(--bg);}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:14px 0;
}
.breadcrumb a{color:var(--muted);transition:color .2s;}
.breadcrumb a:hover{color:var(--brand-700);}
.breadcrumb .sep{color:#C4BEB4;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(255,90,31,.06),rgba(250,247,243,0) 70%),
    repeating-linear-gradient(45deg,rgba(255,90,31,.045) 0 1px,transparent 1px 22px);
  padding:44px 0 40px;
}
.article-hero-inner{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.12em;font-weight:600;
  color:var(--brand-700);background:var(--brand-soft);border:1px solid rgba(255,90,31,.22);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.article-title{
  font-size:clamp(2rem,4.4vw,3.25rem);
  line-height:1.12;font-weight:800;letter-spacing:-.03em;
  color:var(--ink);margin:18px 0 16px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13px;color:var(--muted);
}
.article-meta .item{display:inline-flex;align-items:center;gap:6px;}
.article-meta svg{opacity:.75;}
.hero-rule{height:1px;background:var(--line);margin-top:26px;}

/* ---------- 文章主体 ---------- */
.article-section{padding:56px 0 72px;}
@media (min-width:1024px){.article-section{padding:76px 0 96px;}}
.article-layout{display:grid;grid-template-columns:1fr;gap:44px;}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 264px;gap:56px;}
}
.article-main{max-width:780px;width:100%;}
.article-body{font-size:17px;line-height:1.95;color:var(--text);}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative;font-size:22px;line-height:1.35;font-weight:700;
  color:var(--ink);margin:2em 0 .8em;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  border-radius:4px;background:var(--brand);
}
.article-body h3{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);margin:1.6em 0 .6em;}
.article-body img{border-radius:var(--r-media);margin:1.4em 0;width:100%;}
.article-body blockquote{
  border-left:3px solid var(--brand);background:#fff;
  border-radius:0 var(--r-media) var(--r-media) 0;
  padding:16px 20px;margin:1.4em 0;color:var(--muted);font-size:16px;
}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 1.25em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.45em 0;line-height:1.9;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-variant-numeric:tabular-nums;}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;transition:text-decoration-thickness .2s;}
.article-body a:hover{text-decoration-thickness:2px;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:rgba(16,17,20,.06);font-weight:600;color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

.empty-state{
  text-align:center;padding:56px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.empty-state .glyph{
  width:88px;height:88px;margin:0 auto 18px;border-radius:26px;
  display:flex;align-items:center;justify-content:center;
  border:1px dashed rgba(255,90,31,.4);background:var(--brand-soft);color:var(--brand);
}
.empty-state h2{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;}
@media (min-width:1024px){
  .side-col{position:sticky;top:96px;align-self:start;}
}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);
}
.side-title{
  font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--muted);
  margin-bottom:14px;
}
.side-list li + li{border-top:1px solid var(--line);}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 0;font-size:14px;color:var(--ink);transition:color .2s,transform .2s;
}
.side-list a:hover{color:var(--brand-700);transform:translateX(3px);}
.side-list .arrow{color:var(--muted);}
.side-nums{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.side-nums .num{
  font-size:26px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.side-nums .num em{font-style:normal;color:var(--accent);font-size:16px;}
.side-nums .cap{font-size:12px;color:var(--muted);margin-top:2px;}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:var(--r-chip);border:1px solid var(--line);background:#fff;
  font-size:13px;color:var(--muted);transition:all .2s;
}
.chip:hover{border-color:rgba(255,90,31,.45);color:var(--brand-700);background:var(--brand-soft);}

/* ---------- 上一篇 / 下一篇 ---------- */
.pager{display:grid;grid-template-columns:1fr;gap:16px;margin-top:32px;}
@media (min-width:640px){.pager{grid-template-columns:1fr 1fr;}}
.pager-item{
  display:flex;flex-direction:column;gap:6px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;transition:transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s,border-color .25s;
}
.pager-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,31,.35);}
.pager-item .label{font-size:12px;letter-spacing:.14em;color:var(--muted);font-weight:600;}
.pager-item .ttl{font-size:16px;font-weight:600;color:var(--ink);}
.pager-item .go{font-size:13px;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}

/* ---------- 相关推荐 ---------- */
.rec-section{padding:64px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
@media (min-width:1024px){.rec-section{padding:88px 0;}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:34px;}
.sec-label{font-size:12px;letter-spacing:.14em;font-weight:700;color:var(--brand-700);margin-bottom:10px;}
.sec-title{font-size:clamp(1.6rem,3vw,2.25rem);line-height:1.15;font-weight:700;letter-spacing:-.02em;color:var(--ink);}
.sec-sub{font-size:15px;color:var(--muted);max-width:520px;margin-top:10px;line-height:1.8;}
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .28s cubic-bezier(.2,.7,.2,1),box-shadow .28s,border-color .28s;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,31,.3);}
.post-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EFEAE3;}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.2,1);}
.post-card:hover .post-media img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-cat{
  align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:#00775F;background:rgba(0,211,167,.12);border:1px solid rgba(0,211,167,.35);
  border-radius:var(--r-chip);padding:3px 10px;
}
.post-title{font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);}
.post-desc{font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.post-foot .go{color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;transition:transform .25s;}
.post-card:hover .post-foot .go{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-section{padding:64px 0;background:var(--bg);}
@media (min-width:1024px){.faq-section{padding:96px 0;}}
.faq-list{max-width:780px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:10px 2px;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);transition:color .2s;
}
.faq-q:hover{color:var(--brand-700);}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;position:relative;color:var(--brand);
  transition:transform .26s cubic-bezier(.2,.7,.2,1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{left:3px;right:3px;top:11px;height:2px;}
.faq-icon::after{top:3px;bottom:3px;left:11px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease;}
.faq-a p{font-size:15px;line-height:1.9;color:var(--muted);padding:0 2px 22px;}

/* ---------- CTA 条 ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:26px;
  background:linear-gradient(120deg,#FF6A2B,#FF5A1F 45%,#E8460D);
  padding:40px 32px;display:grid;gap:22px;align-items:center;
  box-shadow:var(--shadow-brand);
}
@media (min-width:900px){
  .cta-inner{grid-template-columns:1fr auto;padding:52px 48px;}
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.12);
}
.cta-inner h2{font-size:clamp(1.4rem,2.6vw,2rem);font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.25;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.88);margin-top:10px;line-height:1.8;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.btn-on-brand{background:#fff;color:var(--ink);box-shadow:0 12px 26px -14px rgba(16,17,20,.5);}
.btn-on-brand:hover{transform:translateY(-1px);background:#FFF6F1;}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.16);transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(250,247,243,.78);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(250,247,243,.62);margin-top:14px;max-width:320px;}
.footer-title{font-size:13px;letter-spacing:.14em;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(250,247,243,.66);transition:color .2s;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(250,247,243,.66);margin-bottom:12px;}
.footer-contact svg{flex:0 0 auto;color:var(--brand);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 20px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(250,247,243,.5);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 24px -22px rgba(16,17,20,.6);
}
.mobile-tab a{
  flex:1;min-height:56px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--muted);position:relative;transition:color .2s;
}
.mobile-tab a svg{width:22px;height:22px;}
.mobile-tab a.is-active{color:var(--brand);font-weight:600;}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:4px;width:18px;height:2px;border-radius:2px;background:var(--brand);
}
@media (min-width:768px){
  .mobile-tab{display:none;}
}
@media (max-width:767px){
  body{padding-bottom:72px;}
}

/* ---------- 入场动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px);transition:opacity .4s cubic-bezier(.2,.7,.2,1),transform .4s cubic-bezier(.2,.7,.2,1);}
.fade-up.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .fade-up{opacity:1;transform:none;transition:none;}
  *{animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --brand:#FF5A1F;
  --brand-700:#D93F0B;
  --accent:#00D3A7;
  --ink:#101114;
  --bg:#FAF7F3;
  --text:#1A1B1F;
  --muted:#5A5F6B;
  --line:#E7E2DA;
  --r-card:20px;
  --r-media:16px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(16,17,20,.05);
  --shadow-2:0 14px 34px -16px rgba(16,17,20,.18);
  --shadow-brand:0 12px 30px -12px rgba(255,90,31,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--ink);flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(255,90,31,.7);
}
.nav-links{display:none;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;color:var(--muted);border-radius:10px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(16,17,20,.05)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-cta{margin-left:auto;display:none}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-chip);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(255,90,31,.8)}
.btn-primary:hover{background:#FF6E38;transform:translateY(-1px);box-shadow:var(--shadow-brand);color:#fff}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:rgba(16,17,20,.08)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:#F3EFEA;transform:translateY(-1px)}
.btn:focus-visible,.nav-link:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid transparent;transition:border-color .2s var(--ease),gap .2s var(--ease);
}
.link-arrow:hover{border-bottom-color:var(--brand-700);gap:10px}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 4px;font-size:13px;color:var(--muted)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.crumb li::after{content:"/";margin-left:6px;color:#C3BCB2}
.crumb li:last-child::after{content:""}
.crumb a:hover{color:var(--brand-700)}
.crumb .current{color:var(--ink)}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;border-radius:0 0 var(--r-card) var(--r-card);margin-top:12px}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.cat-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,17,20,.86) 0%,rgba(16,17,20,.62) 48%,rgba(255,90,31,.45) 100%)}
.cat-hero-inner{position:relative;z-index:2;padding:56px 0 48px;color:#fff}
@media (min-width:1024px){.cat-hero-inner{padding:88px 0 76px}}
.cat-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:#FFD9C7;text-transform:none;
}
.cat-tag::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(255,90,31,.25)}
.cat-hero h1{
  margin:16px 0 14px;font-size:clamp(2.1rem,5.4vw,3.6rem);line-height:1.08;font-weight:800;letter-spacing:-.03em;
}
.cat-hero p.lead{max-width:620px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.84);margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:32px;padding:0 14px;border-radius:var(--r-chip);
  font-size:13px;color:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.06);
}

/* ---------- 数据条 ---------- */
.stat-bar{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);margin:-32px auto 0;position:relative;z-index:5;
  display:grid;grid-template-columns:repeat(2,1fr);overflow:hidden;
}
@media (min-width:768px){.stat-bar{grid-template-columns:repeat(4,1fr);margin-top:-44px}}
.stat-cell{padding:22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat-bar .stat-cell:nth-child(2n){border-right:none}
@media (min-width:768px){
  .stat-cell{border-bottom:none}
  .stat-bar .stat-cell:nth-child(2n){border-right:1px solid var(--line)}
  .stat-bar .stat-cell:last-child{border-right:none}
}
.stat-num{font-size:clamp(1.75rem,3.4vw,2.6rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;color:var(--ink)}
.stat-num span{color:var(--accent);font-size:.6em;font-weight:700;margin-left:4px}
.stat-label{font-size:12px;letter-spacing:.08em;color:var(--muted);margin-top:6px}

/* ---------- 区块通用 ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:34px}
.eyebrow{font-size:12px;letter-spacing:.12em;color:var(--brand-700);font-weight:700}
h2.section-title{
  font-size:clamp(1.7rem,3.6vw,2.5rem);line-height:1.15;font-weight:700;letter-spacing:-.02em;margin:10px 0 12px;
}
.section-sub{color:var(--muted);font-size:16px;margin:0}

/* ---------- 交替图文 ---------- */
.zig{display:grid;gap:28px;align-items:center}
@media (min-width:1024px){.zig{grid-template-columns:1fr 1fr;gap:56px}}
.zig-media{position:relative;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2)}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.zig-media:hover img{transform:scale(1.03)}
.zig-media .plate{
  position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;font-size:15px;font-weight:600;
  background:linear-gradient(180deg,rgba(16,17,20,0) 0%,rgba(16,17,20,.82) 100%);
}
.zig-index{
  font-size:12px;letter-spacing:.14em;color:var(--brand-700);font-weight:700;
}
.zig h3{font-size:clamp(1.25rem,2.2vw,1.6rem);line-height:1.35;font-weight:700;margin:10px 0 12px}
.zig p{color:var(--muted);margin:0 0 16px;font-size:16px}
.zig ul{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px}
.zig li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.zig li::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-top:9px}
.zig-row + .zig-row{margin-top:56px}
@media (min-width:1024px){
  .zig-row + .zig-row{margin-top:84px}
  .zig-row.reverse .zig-media{order:2}
}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-chip);
  font-size:12px;font-weight:600;color:#0C7F68;background:rgba(0,211,167,.12);border:1px solid rgba(0,211,167,.42);
}
.card h3{font-size:19px;line-height:1.45;font-weight:600;margin:12px 0 8px}
.card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 14px}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto}
.card-foot .go{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:transform .25s var(--ease)}
.card:hover .card-foot .go{transform:translateX(4px)}

/* ---------- 清单 ---------- */
.list-rows{border-top:1px solid var(--line)}
.list-row{
  display:grid;grid-template-columns:44px 1fr;gap:14px;align-items:start;
  padding:20px 12px;border-bottom:1px solid var(--line);transition:background .2s var(--ease);
}
.list-row:hover{background:rgba(16,17,20,.03)}
.list-row .num{font-size:14px;font-weight:700;color:var(--brand);letter-spacing:.04em;padding-top:3px}
.list-row h3{font-size:17px;font-weight:600;margin:0 0 4px}
.list-row p{margin:0;font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:780px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;font-size:17px;font-weight:600;cursor:pointer;min-height:64px;
}
.faq-q .plus{
  flex:0 0 auto;width:24px;height:24px;position:relative;transition:transform .26s var(--ease);color:var(--brand);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-q .plus::before{left:11px;top:3px;width:2px;height:18px}
.faq-q .plus::after{top:11px;left:3px;height:2px;width:18px}
.faq-item.open .faq-q .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{margin:0 0 20px;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#FF5A1F 0%,#D93F0B 100%);
  border-radius:var(--r-card);padding:36px 28px;color:#fff;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
  box-shadow:var(--shadow-brand);
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px}
}
.cta-band h2{font-size:clamp(1.4rem,2.6vw,2rem);line-height:1.25;font-weight:800;margin:0 0 8px;letter-spacing:-.02em}
.cta-band p{margin:0;font-size:15px;color:rgba(255,255,255,.88);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(250,247,243,.72);margin-top:56px;padding:56px 0 0}
@media (min-width:1024px){.site-footer{padding-top:72px}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;padding-bottom:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#FAF7F3}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(250,247,243,.6);margin:14px 0 0;max-width:300px}
.footer-title{color:#FAF7F3;font-size:14px;font-weight:700;margin:0 0 14px;letter-spacing:.02em}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14px}
.footer-links a{color:rgba(250,247,243,.68);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{list-style:none;margin:0;padding:0;display:grid;gap:12px;font-size:14px}
.footer-contact li{display:flex;align-items:center;gap:10px;color:rgba(250,247,243,.68)}
.footer-contact svg{flex:0 0 auto;color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:20px 0;
  display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(250,247,243,.5);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);
  display:flex;padding-bottom:env(safe-area-inset-bottom);
}
@media (min-width:768px){.tabbar{display:none}}
.tab-item{
  flex:1;min-height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:var(--muted);position:relative;padding:6px 2px;
}
.tab-item svg{width:22px;height:22px}
.tab-item.is-active{color:var(--brand);font-weight:600}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;width:22px;height:2px;border-radius:2px;background:var(--brand);
}
@media (max-width:767px){
  body{padding-bottom:72px}
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
}

/* roulang page: category1 */
:root{
    --brand:#FF5A1F;
    --brand-700:#D93F0B;
    --accent:#00D3A7;
    --ink:#101114;
    --bg:#FAF7F3;
    --text:#1A1B1F;
    --muted:#5A5F6B;
    --line:#E7E2DA;
    --r-card:20px;
    --r-media:16px;
    --r-chip:999px;
    --shadow-1:0 1px 2px rgba(16,17,20,.05);
    --shadow-2:0 14px 34px -16px rgba(16,17,20,.18);
    --shadow-brand:0 12px 30px -12px rgba(255,90,31,.45);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    padding-bottom:calc(72px + env(safe-area-inset-bottom));
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
  h1{font-size:clamp(2.1rem,6vw,4rem);line-height:1.06;font-weight:800;letter-spacing:-.03em;color:var(--ink)}
  h2{font-size:clamp(1.55rem,3.6vw,2.5rem);line-height:1.16;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
  h3{font-size:18px;line-height:1.42;font-weight:600;color:var(--ink)}
  a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:var(--bg);transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;border-bottom:1px solid transparent}
  .site-header.is-scrolled{background:rgba(250,247,243,.92);backdrop-filter:blur(10px);border-bottom-color:var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap}
  .brand-mark{width:30px;height:30px;border-radius:10px;background:var(--brand);display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow-brand);flex:0 0 30px}
  .nav-links{display:none;align-items:center;gap:4px}
  .nav-link{position:relative;padding:10px 12px;font-size:15px;color:var(--muted);border-radius:10px;transition:color .2s ease,background .2s ease}
  .nav-link:hover{color:var(--ink);background:rgba(16,17,20,.04)}
  .nav-link.is-active{color:var(--brand);font-weight:600}
  .nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
  .nav-cta{display:none}
  @media (min-width:768px){
    .nav-links{display:flex}
    .nav-link{font-size:13px;padding:10px 8px}
  }
  @media (min-width:1024px){
    .nav-link{font-size:15px;padding:10px 12px}
    .nav-cta{display:inline-flex}
  }

  /* ---------- buttons ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 26px;border-radius:var(--r-chip);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-brand)}
  .btn-primary:hover{background:#ff7038;transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(255,90,31,.6)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
  .btn-ghost:hover{background:rgba(16,17,20,.06);transform:translateY(-1px)}
  .btn-light{background:#fff;color:var(--ink)}
  .btn-light:hover{background:#f2ede6;transform:translateY(-1px)}
  .text-link{color:var(--brand-700);font-size:15px;font-weight:600}
  .text-link:hover{text-decoration:underline;text-underline-offset:4px}

  .chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.1em;padding:6px 13px;border-radius:var(--r-chip);color:#0a7a66;background:rgba(0,211,167,.12);border:1px solid rgba(0,211,167,.38)}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand-700);background:rgba(255,90,31,.09);border-radius:var(--r-chip);padding:7px 14px}
  .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 6px}

  /* ---------- breadcrumb ---------- */
  .crumb{padding:22px 0 0;font-size:13px;color:var(--muted)}
  .crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
  .crumb li{display:inline-flex;align-items:center;gap:8px}
  .crumb li+li::before{content:"/";color:#c9c2b8}
  .crumb a:hover{color:var(--brand-700)}
  .crumb li[aria-current] span{color:var(--ink);font-weight:600}

  /* ---------- hero ---------- */
  .hero{position:relative;overflow:hidden;padding:40px 0 56px}
  .hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,90,31,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,90,31,.06) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(70% 60% at 22% 30%,#000,transparent);mask-image:radial-gradient(70% 60% at 22% 30%,#000,transparent);pointer-events:none}
  .hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:36px}
  .hero-sub{margin-top:18px;max-width:34em;font-size:17px;color:var(--muted)}
  .hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:28px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:36px}
  .hero-stats li{display:flex;flex-direction:column;gap:2px}
  .hero-stats b{font-size:28px;font-weight:800;line-height:1.2;color:var(--ink)}
  .hero-stats span{font-size:13px;color:var(--muted)}
  .hero-media{position:relative;border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:4/3;background:var(--ink)}
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-media-mask{position:absolute;left:0;right:0;bottom:0;height:40%;background:linear-gradient(transparent,rgba(16,17,20,.8))}
  .hero-index{position:absolute;top:16px;right:16px;display:flex;flex-direction:column;gap:12px;padding:14px 16px;border-radius:12px;background:rgba(16,17,20,.72);color:#fff;font-size:12px;letter-spacing:.14em}
  .hero-index li{position:relative;padding-left:16px;font-variant-numeric:tabular-nums}
  .hero-index li::before{content:"";position:absolute;left:0;top:50%;width:8px;height:1px;background:rgba(255,255,255,.75)}
  @media (min-width:1024px){
    .hero{padding:56px 0 88px}
    .hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}
  }

  /* ---------- section ---------- */
  .section{padding:56px 0}
  .section + .section{padding-top:0}
  .section-head{max-width:780px;margin-bottom:32px}
  .section-head h2{margin-top:16px}
  .section-head p{margin-top:14px;font-size:16px;color:var(--muted)}
  @media (min-width:1024px){ .section{padding:88px 0} .section-head{margin-bottom:44px} }

  /* ---------- side layout ---------- */
  .side-layout{display:grid;grid-template-columns:1fr;gap:28px}
  .side-title{font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--muted);margin-bottom:10px}
  .side-links{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;-ms-overflow-style:none}
  .side-links::-webkit-scrollbar{display:none}
  .side-links a{white-space:nowrap;font-size:14px;color:var(--muted);padding:9px 14px;border:1px solid var(--line);border-radius:var(--r-chip);background:#fff;transition:color .2s ease,background .2s ease,border-color .2s ease}
  .side-links a:hover{color:var(--ink);border-color:#cfc6b9}
  .side-links a.is-active{color:#fff;background:var(--brand);border-color:var(--brand);font-weight:600}
  .side-main > .block + .block{margin-top:64px}
  @media (min-width:1024px){
    .side-layout{grid-template-columns:216px 1fr;gap:48px;align-items:start}
    .side-nav{position:sticky;top:96px}
    .side-links{flex-direction:column;gap:0;overflow:visible;padding-bottom:0;border-left:1px solid var(--line)}
    .side-links a{border:0;border-left:2px solid transparent;border-radius:0 10px 10px 0;background:transparent;margin-left:-1px;padding:10px 14px}
    .side-links a:hover{background:rgba(16,17,20,.04);color:var(--ink)}
    .side-links a.is-active{background:transparent;color:var(--brand);border-left-color:var(--brand);font-weight:600}
  }

  /* ---------- list rows ---------- */
  .rows{border-top:1px solid var(--line)}
  .row{display:grid;grid-template-columns:52px 1fr;gap:6px 16px;padding:22px 6px;border-bottom:1px solid var(--line);transition:background .2s ease}
  .row:hover{background:rgba(16,17,20,.03)}
  .row-num{grid-row:span 2;padding-top:3px;font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--brand);font-variant-numeric:tabular-nums}
  .row p{grid-column:2;font-size:15px;color:var(--muted)}
  @media (min-width:768px){
    .row{grid-template-columns:64px 236px 1fr;gap:24px;align-items:start;padding:26px 10px}
    .row-num{grid-row:span 1;padding-top:2px}
    .row p{grid-column:3}
  }

  /* ---------- media rows ---------- */
  .media-row{display:grid;grid-template-columns:1fr;gap:22px;align-items:center;margin-top:44px}
  .media-figure{border-radius:var(--r-media);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/10;background:#fff;box-shadow:var(--shadow-1)}
  .media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
  .media-row:hover .media-figure img{transform:scale(1.03)}
  .media-copy h3{font-size:21px}
  .media-copy > p{margin-top:12px;font-size:15px;color:var(--muted)}
  .bullet{margin-top:16px;display:flex;flex-direction:column;gap:10px}
  .bullet li{position:relative;padding-left:20px;font-size:15px;color:var(--muted)}
  .bullet li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand)}
  @media (min-width:768px){
    .media-row{grid-template-columns:1fr 1fr;gap:40px;margin-top:56px}
    .media-row.reverse .media-figure{order:2}
  }

  /* ---------- cards ---------- */
  .grid-4{display:grid;grid-template-columns:1fr;gap:16px}
  .mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease}
  .mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .mini-card h3{margin-bottom:8px}
  .mini-card p{font-size:14px;color:var(--muted)}
  .mini-icon{width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;background:rgba(0,211,167,.12);color:#0a7a66;margin-bottom:14px;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
  @media (min-width:640px){ .grid-4{grid-template-columns:1fr 1fr} }
  @media (min-width:1024px){ .grid-4{grid-template-columns:repeat(4,1fr);gap:24px} }

  .grid-2{display:grid;grid-template-columns:1fr;gap:16px}
  @media (min-width:768px){ .grid-2{grid-template-columns:1fr 1fr;gap:24px} }
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease;display:block}
  .card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
  .card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
  .card:hover img{transform:scale(1.03)}
  .card-body{padding:20px 22px 24px}
  .card-body h3{margin:12px 0 10px}
  .card-body p{font-size:14px;color:var(--muted)}

  /* ---------- dark band ---------- */
  .dark-band{background:var(--ink);color:#fff;border-radius:24px;padding:36px 24px}
  .dark-band h2{color:#fff}
  .dark-band .dark-sub{margin-top:14px;font-size:15px;color:rgba(250,247,243,.7)}
  .dark-stats{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px}
  .dark-stats li{padding-left:0}
  .dark-stats b{display:block;font-size:clamp(1.9rem,4vw,2.9rem);font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
  .dark-stats span{display:block;margin-top:6px;font-size:12.5px;color:rgba(250,247,243,.62)}
  @media (min-width:768px){
    .dark-band{padding:56px 56px}
    .dark-stats{grid-template-columns:repeat(4,1fr);gap:0}
    .dark-stats li{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
    .dark-stats li:first-child{padding-left:0;border-left:0}
  }

  /* ---------- faq ---------- */
  .faq{max-width:780px;margin:0 auto}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:first-child{border-top:1px solid var(--line)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:64px;padding:20px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;transition:color .2s ease}
  .faq-q:hover{color:var(--brand-700)}
  .faq-icon{position:relative;flex:0 0 24px;width:24px;height:24px;transition:transform .26s ease}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--brand)}
  .faq-icon::before{width:14px;height:2px}
  .faq-icon::after{width:2px;height:14px}
  .faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-a p{padding:0 0 22px;font-size:15px;color:var(--muted);max-width:64ch}

  /* ---------- cta band ---------- */
  .cta-band{background:var(--brand);border-radius:24px;padding:36px 26px;display:grid;gap:24px;color:#fff;text-align:center;box-shadow:var(--shadow-brand)}
  .cta-band h2{color:#fff}
  .cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.88)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
  @media (min-width:768px){
    .cta-band{grid-template-columns:1fr auto;align-items:center;text-align:left;padding:48px 56px;gap:32px}
    .cta-actions{justify-content:flex-end}
  }

  /* ---------- footer ---------- */
  .site-footer{background:var(--ink);color:rgba(250,247,243,.68);margin-top:72px;padding-top:64px}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff}
  .footer-desc{margin-top:14px;max-width:34ch;font-size:14px;color:rgba(250,247,243,.6)}
  .footer-title{font-size:14px;font-weight:600;letter-spacing:.06em;color:#fff;margin-bottom:14px}
  .footer-links li+li{margin-top:10px}
  .footer-links a{font-size:14px;color:rgba(250,247,243,.66);transition:color .2s ease}
  .footer-links a:hover{color:#fff}
  .footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(250,247,243,.66)}
  .footer-contact li+li{margin-top:12px}
  .footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(250,247,243,.5)}
  @media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:2fr 1fr 1fr 1.3fr;gap:32px} }

  /* ---------- mobile tab ---------- */
  .mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:70;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
  .tab-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:56px;font-size:11px;color:var(--muted);transition:color .2s ease}
  .tab-item.is-active{color:var(--brand);font-weight:600}
  .tab-item.is-active::before{content:"";position:absolute;top:0;width:20px;height:2px;border-radius:999px;background:var(--brand)}
  @media (min-width:768px){ .mobile-tab{display:none} body{padding-bottom:0} }

  /* ---------- motion ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .4s cubic-bezier(.2,.7,.2,1),transform .4s cubic-bezier(.2,.7,.2,1)}
  .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}
  }

/* roulang page: category3 */
:root{
  --brand:#FF5A1F;
  --brand-700:#D93F0B;
  --brand-soft:#FFEDE5;
  --accent:#00D3A7;
  --ink:#101114;
  --bg:#FAF7F3;
  --surface:#ffffff;
  --text:#1A1B1F;
  --muted:#5A5F6B;
  --line:#E7E2DA;
  --r-card:20px;
  --r-media:16px;
  --r-chip:999px;
  --shadow-1:0 1px 2px rgba(16,17,20,.05);
  --shadow-2:0 14px 34px -16px rgba(16,17,20,.18);
  --shadow-brand:0 12px 30px -12px rgba(255,90,31,.45);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3{margin:0;font-weight:700;letter-spacing:-.02em}
.tnum{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
body .container{padding-left:32px;padding-right:32px}
@media(max-width:767px){body .container{padding-left:20px;padding-right:20px}}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(1.6rem,3.2vw,2.5rem);line-height:1.15}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--brand-700)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(16,17,20,.55)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-700));
  box-shadow:var(--shadow-brand);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 12px;border-radius:10px;
  font-size:15px;color:var(--muted);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--ink);background:rgba(16,17,20,.05)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-8px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-cta{margin-left:12px;height:42px;padding:0 20px;font-size:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-chip);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -16px rgba(255,90,31,.8)}
.btn-primary:hover{background:#FF6A33;transform:translateY(-1px);box-shadow:var(--shadow-brand)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:rgba(16,17,20,.06);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px -18px rgba(0,0,0,.6)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700)}
.link-more:hover{text-decoration:underline;text-underline-offset:4px}
.link-more svg{transition:transform .2s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:22px;font-size:13px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb [aria-current]{color:var(--ink);font-weight:600}

/* ---------- 分类 Hero ---------- */
.cat-hero{position:relative;padding:40px 0 64px;overflow:hidden}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;
  opacity:.45;
  -webkit-mask-image:radial-gradient(120% 80% at 12% 0%,#000 0%,transparent 72%);
  mask-image:radial-gradient(120% 80% at 12% 0%,#000 0%,transparent 72%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;margin-top:26px}
@media(min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.cat-hero h1{font-size:clamp(2.4rem,6vw,3.9rem);line-height:1.06;letter-spacing:-.03em;font-weight:800;margin-top:14px}
.hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;align-items:center}
.trust-row{display:flex;flex-wrap:wrap;gap:32px;margin-top:38px}
.trust-item strong{display:block;font-size:24px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.trust-item span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.hero-media{
  position:relative;border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:4/3;box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.hero-media:hover img{transform:scale(1.03)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,17,20,0) 52%,rgba(16,17,20,.62) 100%);
}
.hero-media figcaption{
  position:absolute;left:20px;right:20px;bottom:16px;z-index:2;color:#fff;
  font-size:13px;letter-spacing:.02em;
}
.hero-index{display:none}
@media(min-width:1024px){
  .hero-index{display:flex;flex-direction:column;gap:14px;position:absolute;left:-58px;top:8px}
  .hero-index li{font-size:12px;letter-spacing:.12em;color:var(--muted);font-variant-numeric:tabular-nums;display:flex;align-items:center;gap:8px}
  .hero-index li::after{content:"";width:24px;height:1px;background:var(--line)}
  .hero-index li:first-child{color:var(--brand);font-weight:700}
}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
@media(min-width:768px){.stat-bar{grid-template-columns:repeat(4,1fr)}}
.stat-cell{background:#fff;padding:24px 20px;transition:background .2s var(--ease)}
.stat-cell:hover{background:#FFFBF8}
.stat-cell strong{display:block;font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1}
.stat-cell strong em{font-style:normal;color:var(--accent)}
.stat-cell span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:44px}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(255,90,31,.08));
}
.tl-item{position:relative;padding:0 0 34px 62px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-1);transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.tl-item:hover .tl-num{background:var(--brand);border-color:var(--brand);color:#fff}
.tl-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.tl-item:hover .tl-body{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.tl-body h3{font-size:18px;font-weight:600}
.tl-body p{margin-top:8px;font-size:15px;color:var(--muted);line-height:1.85}
.tl-tag{display:inline-block;margin-top:14px;padding:4px 12px;border-radius:var(--r-chip);background:var(--brand-soft);color:var(--brand-700);font-size:12px;font-weight:600}

/* ---------- 深色对照区 ---------- */
.dark-block{background:var(--ink);border-radius:28px;padding:40px 24px;color:#fff}
@media(min-width:768px){.dark-block{padding:56px 48px}}
.dark-block h2{font-size:clamp(1.5rem,3vw,2.2rem);line-height:1.2}
.dark-block .lead{margin-top:12px;color:rgba(255,255,255,.66);font-size:15px;max-width:44em}
.contrast{display:grid;grid-template-columns:1fr;gap:32px;margin-top:40px}
@media(min-width:900px){
  .contrast{grid-template-columns:1fr 1fr;gap:0}
  .contrast > div + div{border-left:1px solid rgba(255,255,255,.10);padding-left:40px}
  .contrast > div:first-child{padding-right:40px}
}
.contrast h3{font-size:18px;display:flex;align-items:center;gap:10px}
.contrast h3 .chip{display:inline-flex;align-items:center;padding:3px 10px;border-radius:var(--r-chip);font-size:12px;letter-spacing:.08em}
.contrast .chip.brand{background:rgba(255,90,31,.18);color:#FFB499}
.contrast .chip.acc{background:rgba(0,211,167,.16);color:#7BF0D8}
.compare-list{margin-top:22px}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-top:1px solid rgba(255,255,255,.10);
  font-size:15px;color:rgba(255,255,255,.82);
}
.compare-list li span.k{color:rgba(255,255,255,.5);font-size:13px;min-width:44px;font-variant-numeric:tabular-nums}
.compare-list li svg{flex:none;margin-top:5px;color:var(--accent)}

/* ---------- 瀑布卡片 ---------- */
.masonry{columns:1;column-gap:24px;margin-top:40px}
@media(min-width:768px){.masonry{columns:2}}
.pin{
  break-inside:avoid;margin-bottom:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.pin:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.pin-media{overflow:hidden;position:relative}
.pin-media img{width:100%;object-fit:cover;transition:transform .4s var(--ease)}
.pin:hover .pin-media img{transform:scale(1.03)}
.pin-media.ar-1 img{aspect-ratio:4/3}
.pin-media.ar-2 img{aspect-ratio:16/10}
.pin-media.ar-3 img{aspect-ratio:1/1}
.pin-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,17,20,0) 60%,rgba(16,17,20,.35))}
.pin-body{padding:20px 22px 22px}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-chip);
  background:rgba(0,211,167,.12);border:1px solid rgba(0,211,167,.35);color:#0A8C74;
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.pin-body h3{margin-top:14px;font-size:19px;font-weight:600;line-height:1.4}
.pin-body p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.8}
.pin-foot{display:flex;align-items:center;justify-content:space-between;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.pin-foot time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.pin-foot .go{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.pin:hover .pin-foot .go svg{transform:translateX(4px)}
.pin-foot .go svg{transition:transform .2s var(--ease)}

/* ---------- FAQ ---------- */
.faq-list{max-width:780px;margin:36px auto 0;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:18px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;line-height:1.6;transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{flex:none;width:24px;height:24px;color:var(--muted);transition:transform .26s var(--ease),color .26s var(--ease)}
.faq-item.is-open .faq-q{color:var(--brand-700)}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease)}
.faq-a p{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-700) 100%);
  border-radius:26px;padding:36px 28px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
@media(min-width:768px){.cta-band{padding:46px 48px}}
.cta-band h2{font-size:clamp(1.4rem,2.8vw,2rem);line-height:1.25;color:#fff}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:40em}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);margin-top:72px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1.2fr}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:26em}
.footer-title{color:#fff;font-size:14px;font-weight:600;letter-spacing:.08em;margin-bottom:16px}
.footer-links li a{display:inline-block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.footer-links li a:hover{color:#fff}
.footer-contact li{display:flex;align-items:center;gap:10px;padding:5px 0;font-size:14px}
.footer-contact svg{flex:none;color:var(--brand)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0 24px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tab{display:none}
@media(max-width:767px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav{justify-content:space-between}
  body{padding-bottom:72px}
  .mobile-tab{
    display:grid;grid-template-columns:repeat(4,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    background:#fff;border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .tab-item{
    position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:3px;height:56px;font-size:11px;color:var(--muted);
  }
  .tab-item.is-active{color:var(--brand);font-weight:600}
  .tab-item.is-active::before{
    content:"";position:absolute;top:2px;width:20px;height:2px;border-radius:2px;background:var(--brand);
  }
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}