/* roulang page: index */
/* ================= 设计变量 ================= */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-success:#2E9E5B;
  --c-warn:#E9A20B;
  --c-error:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04), 0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
  --w:1200px;
}

/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;width:100%;}
.num,.countdown-num,.price{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-s);}
::selection{background:var(--c-primary-soft);color:var(--c-primary-hover);}

/* ================= 布局容器 ================= */
.container{max-width:var(--w);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:.01em;}
.section-head .sub{font-size:14px;line-height:1.75;color:var(--c-text-2);max-width:560px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border:1px solid var(--c-accent);border-radius:999px;color:var(--c-accent);font-size:13px;line-height:1;background:var(--c-accent-soft);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--c-primary);}
.link-arrow::after{content:"→";transition:transform .18s ease-out;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-outline{border-color:var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px);}
.btn-ghost-light{border-color:rgba(255,255,255,.42);color:#fff;background:transparent;}
.btn-ghost-light:hover{background:#fff;color:var(--c-ink);border-color:#fff;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:var(--c-primary-soft);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-block{width:100%;}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}

/* ================= 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,242,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 6px 20px -18px rgba(20,24,28,.35);}
.header-inner{display:flex;align-items:center;gap:28px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:30px;height:30px;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;}
.logo-text span{font-size:11.5px;color:var(--c-text-3);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--c-text);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-link{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;color:var(--c-text-2);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.icon-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-toggle{
  display:none;width:44px;height:44px;flex-direction:column;justify-content:center;
  align-items:center;gap:6px;border-radius:var(--r-s);
}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--c-ink);transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(3.75px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){transform:translateY(-3.75px) rotate(-45deg);}
.drawer{
  display:none;position:fixed;inset:76px 0 0 0;z-index:79;
  background:var(--c-bg);padding:28px 24px 32px;
  opacity:0;pointer-events:none;transition:opacity .2s ease-out;
  overflow-y:auto;
}
.drawer.is-open{opacity:1;pointer-events:auto;}
.drawer a{display:block;font-size:20px;font-weight:600;padding:16px 0;border-bottom:1px solid var(--c-line);}
.drawer a.active{color:var(--c-primary);}
.drawer .btn{margin-top:26px;}

/* ================= Hero ================= */
.hero{position:relative;padding:76px 0 84px;background:var(--c-bg);overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;
  border:1px solid var(--c-line);border-radius:50%;opacity:.55;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero h1{
  font-size:clamp(34px,5vw,58px);line-height:1.16;font-weight:800;
  letter-spacing:.01em;margin:22px 0 18px;
}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
  margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line);
}
.hero-metrics .value{font-size:28px;font-weight:800;line-height:1.2;color:var(--c-ink);}
.hero-metrics .value small{font-size:14px;font-weight:600;color:var(--c-text-2);margin-left:2px;}
.hero-metrics .label{font-size:13px;line-height:1.6;color:var(--c-text-3);margin-top:4px;}
.hero-figure{
  position:relative;aspect-ratio:4/5;border-radius:var(--r-l);overflow:hidden;
  background:var(--c-surface-2);box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure::after{
  content:"";position:absolute;inset:auto 0 0 0;height:42%;
  background:linear-gradient(to top,rgba(20,24,28,.62),rgba(20,24,28,0));
}
.hero-badge{
  position:absolute;top:18px;right:18px;z-index:2;
  height:28px;padding:0 14px;border-radius:999px;background:var(--c-primary);
  color:#fff;font-size:12.5px;font-weight:600;display:inline-flex;align-items:center;
}
.hero-figure-note{
  position:absolute;left:20px;right:20px;bottom:20px;z-index:2;color:#fff;
}
.hero-figure-note strong{display:block;font-size:17px;font-weight:700;}
.hero-figure-note span{font-size:13px;color:rgba(255,255,255,.78);}
.hero-arc{
  position:absolute;left:-40px;bottom:-60px;width:300px;height:180px;
  border-top:1px solid rgba(255,90,31,.5);border-radius:50% 50% 0 0;opacity:.16;pointer-events:none;
}

/* ================= 优惠阶梯 ================= */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start;}
.ladder-item{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-m);padding:26px 22px 24px 26px;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.ladder-item::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
  background:var(--c-primary);border-radius:0 3px 3px 0;
}
.ladder-item:nth-child(2){margin-top:26px;}
.ladder-item:nth-child(3){margin-top:52px;}
.ladder-item:nth-child(4){margin-top:78px;}
.ladder-item:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.ladder-no{font-size:28px;font-weight:800;line-height:1;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.ladder-name{font-size:17px;font-weight:700;margin-top:14px;}
.ladder-rate{font-size:32px;font-weight:800;line-height:1.2;color:var(--c-primary);margin-top:10px;font-variant-numeric:tabular-nums;}
.ladder-rate small{font-size:14px;font-weight:600;color:var(--c-text-2);}
.ladder-for{font-size:13.5px;color:var(--c-text-2);margin-top:8px;}
.ladder-list{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);}
.ladder-list li{position:relative;font-size:14px;line-height:1.75;color:var(--c-text-2);padding-left:14px;margin-bottom:6px;}
.ladder-list li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:1px;background:var(--c-primary);}
.ladder-item .link-arrow{margin-top:18px;}

/* ================= 套餐对比 ================= */
.compare-desktop{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;
}
.compare-table th,.compare-table td{padding:18px 20px;text-align:center;font-size:15px;border-bottom:1px solid var(--c-line);}
.compare-table thead th{border-bottom:1px solid var(--c-line);vertical-align:top;background:var(--c-surface);}
.compare-table thead th.feature-col{
  text-align:left;font-size:14px;font-weight:500;color:var(--c-text-2);vertical-align:bottom;
}
.plan-name{font-size:18px;font-weight:700;line-height:1.4;}
.plan-price{font-size:28px;font-weight:800;line-height:1.2;margin-top:8px;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.plan-price small{font-size:13px;font-weight:500;color:var(--c-text-2);margin-left:2px;}
.plan-for{font-size:13px;color:var(--c-text-3);margin-top:6px;line-height:1.7;}
.compare-table th.recommended,.compare-table td.recommended{background:var(--c-primary-soft);}
.compare-table thead th.recommended{box-shadow:inset 0 2px 0 var(--c-primary);position:relative;}
.plan-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:12px;font-weight:600;margin-bottom:8px;
}
.compare-table tbody th{text-align:left;font-weight:500;font-size:14.5px;color:var(--c-text-2);}
.compare-table tbody tr:hover th,.compare-table tbody tr:hover td{background:var(--c-surface-2);}
.compare-table tbody tr:hover td.recommended{background:#FFE7DA;}
.check{display:inline-flex;width:20px;height:20px;align-items:center;justify-content:center;border-radius:50%;background:var(--c-accent);color:#fff;font-size:12px;line-height:1;}
.dash{display:inline-block;width:14px;height:1px;background:var(--c-line);vertical-align:middle;}
.compare-table tfoot td{padding:22px 20px;border-bottom:0;}
.compare-mobile{display:none;}
.plan-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:22px;margin-bottom:16px;}
.plan-card.recommended{border:2px solid var(--c-primary);background:var(--c-primary-soft);}
.plan-card .plan-row{display:flex;align-items:center;gap:10px;font-size:14.5px;line-height:1.8;color:var(--c-text-2);padding:10px 0;border-bottom:1px solid var(--c-line);}
.plan-card .plan-row:last-of-type{border-bottom:0;}

/* ================= 限时入口 ================= */
.urge{background:var(--c-ink);color:#fff;padding:64px 0;position:relative;overflow:hidden;}
.urge::before{
  content:"";position:absolute;right:-80px;top:-140px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);opacity:.5;
}
.urge::after{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 1px,transparent 1px 26px);
  opacity:.5;pointer-events:none;
}
.urge-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;position:relative;z-index:1;}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;}
.countdown-cell{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-m);padding:16px 8px;text-align:center;
}
.countdown-num{font-size:34px;font-weight:800;line-height:1.1;color:#fff;}
.countdown-label{font-size:12px;color:rgba(255,255,255,.62);margin-top:6px;}
.urge-right h2{font-size:28px;line-height:1.35;font-weight:700;}
.urge-right p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);margin-top:14px;max-width:520px;}
.urge-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:26px;}
.urge-link{font-size:15px;color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.32);padding-bottom:2px;}
.urge-link:hover{color:#fff;border-bottom-color:#fff;}

/* ================= 最新信息 ================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-1);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-tag{
  align-self:flex-start;height:26px;padding:0 12px;border:1px solid var(--c-accent);
  color:var(--c-accent);background:var(--c-accent-soft);border-radius:999px;font-size:12px;
  display:inline-flex;align-items:center;
}
.news-title{
  font-size:16.5px;font-weight:600;line-height:1.55;margin-top:12px;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:14px;line-height:1.75;color:var(--c-text-3);margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;font-size:13px;color:var(--c-text-3);
}
.news-foot .go{color:var(--c-primary);font-weight:600;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:10px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-m);
  padding:40px 24px;text-align:center;
}
.empty-state svg{width:40px;height:40px;color:var(--c-accent);}
.empty-state strong{font-size:16px;font-weight:600;}
.empty-state span{font-size:13.5px;color:var(--c-text-3);}
.empty-state .btn{margin-top:14px;}

/* ================= 证据 / 服务节奏 ================= */
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.evidence-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:26px;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.evidence-card:hover{transform:translateY(-2px);border-color:var(--c-accent);box-shadow:var(--shadow-1);}
.evidence-icon{width:44px;height:44px;border-radius:var(--r-m);background:var(--c-accent-soft);display:flex;align-items:center;justify-content:center;color:var(--c-accent);}
.evidence-card h3{font-size:19px;font-weight:600;margin-top:18px;}
.evidence-card p{font-size:14.5px;line-height:1.85;color:var(--c-text-2);margin-top:10px;}
.evidence-card ul{margin-top:14px;}
.evidence-card li{font-size:13.5px;color:var(--c-text-3);line-height:1.8;padding-left:14px;position:relative;}
.evidence-card li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:1px;background:var(--c-accent);}

/* ================= FAQ ================= */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--c-text);
  border-left:3px solid transparent;padding-left:16px;transition:border-color .18s ease-out,color .18s ease-out;
}
.faq-q:hover{color:var(--c-primary);}
.faq-item.is-open .faq-q{border-left-color:var(--c-primary);}
.faq-sign{flex:0 0 auto;width:22px;height:22px;position:relative;}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-text-2);
  transform:translate(-50%,-50%);transition:transform .18s ease-out,background-color .18s ease-out;
}
.faq-sign::before{width:12px;height:1.5px;}
.faq-sign::after{width:1.5px;height:12px;}
.faq-item.is-open .faq-sign::before{background:var(--c-primary);}
.faq-item.is-open .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-a p{font-size:15px;line-height:1.9;color:var(--c-text-2);padding:0 0 22px 16px;}

/* ================= 咨询表单 ================= */
.inquiry-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.inquiry-points li{display:flex;gap:14px;margin-top:22px;}
.inquiry-points svg{flex:0 0 auto;width:24px;height:24px;color:var(--c-accent);margin-top:3px;}
.inquiry-points strong{display:block;font-size:16px;font-weight:600;}
.inquiry-points span{font-size:14px;line-height:1.8;color:var(--c-text-2);}
.inquiry-contact{margin-top:30px;padding-top:20px;border-top:1px solid var(--c-line);font-size:15px;color:var(--c-text-2);font-variant-numeric:tabular-nums;}
.inquiry-contact b{color:var(--c-text);font-weight:600;}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);padding:32px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13.5px;color:var(--c-text-2);font-weight:500;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;border:1px solid var(--c-line);
  border-radius:var(--r-s);background:var(--c-surface);font-size:15px;line-height:1.6;
  transition:border-color .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:112px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(255,90,31,.18);background:var(--c-primary-soft);
}
.field .err{font-size:13px;color:var(--c-error);display:none;}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-error);}
.field.has-error .err{display:block;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.consent input{width:16px;height:16px;min-height:0;margin-top:4px;accent-color:var(--c-primary);}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:22px;}
.form-note{font-size:12.5px;color:var(--c-text-3);line-height:1.7;margin-top:14px;}
.form-success{
  display:none;align-items:center;gap:12px;margin-top:18px;padding:14px 18px;
  border-left:3px solid var(--c-success);background:var(--c-accent-soft);border-radius:0 var(--r-s) var(--r-s) 0;
  font-size:14.5px;color:var(--c-text);
}
.form-success.is-visible{display:flex;}

/* ================= 页脚 ================= */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin-top:18px;max-width:280px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);
  transition:border-color .18s ease-out,color .18s ease-out,background-color .18s ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:#fff;background:var(--c-primary);}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:16px;letter-spacing:.04em;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);font-variant-numeric:tabular-nums;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;
}

/* ================= 响应式 ================= */
@media (max-width:1279px){
  .ladder-item:nth-child(4){margin-top:52px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .header-actions .btn{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .drawer{display:block;}
  .hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{aspect-ratio:16/10;}
  .ladder{grid-template-columns:repeat(2,1fr);}
  .ladder-item:nth-child(2),.ladder-item:nth-child(3),.ladder-item:nth-child(4){margin-top:0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .urge-grid{grid-template-columns:1fr;gap:32px;}
  .inquiry-grid{grid-template-columns:1fr;gap:36px;}
  .evidence-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:23px;}
  .hero h1{margin:18px 0 14px;}
  .hero-lead{font-size:16px;}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:18px;}
  .hero-metrics .value{font-size:24px;}
  .hero-figure{aspect-ratio:4/3;}
  .ladder{grid-template-columns:1fr;}
  .compare-desktop{display:none;}
  .compare-mobile{display:block;}
  .countdown-cell{padding:12px 4px;}
  .countdown-num{font-size:26px;}
  .news-grid{grid-template-columns:1fr;}
  .evidence-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:520px){
  .hero-cta .btn{width:100%;}
  .urge-actions{flex-direction:column;align-items:stretch;gap:14px;}
  .urge-actions .btn{width:100%;}
  .form-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-success:#2E9E5B;
  --c-warn:#E9A20B;
  --c-error:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04),0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,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:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.3em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-9999px;top:0;background:var(--c-ink);color:#fff;padding:10px 18px;z-index:999}
.skip:focus{left:12px;top:12px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,242,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow 180ms ease-out,background 180ms ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(20,24,28,.35)}
.header-inner{display:flex;align-items:center;gap:32px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:28px;height:28px;display:inline-flex}
.logo-mark svg{width:100%;height:100%}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--c-text)}
.logo-text span{font-size:11.5px;color:var(--c-text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.main-nav a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;
  transition:color 180ms ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-primary);transition:width 180ms ease-out;
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--c-text);font-weight:600}
.main-nav a.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:14px}
.icon-link{
  width:42px;height:42px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text-2);border:1px solid transparent;
  transition:color 180ms ease-out,border-color 180ms ease-out,background 180ms ease-out;
}
.icon-link:hover{color:var(--c-primary);border-color:var(--c-line);background:var(--c-surface)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);
  background:var(--c-surface);border-radius:var(--r-s);
  padding:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:6px;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--c-text);transition:transform 180ms ease-out}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,background 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--c-ink);color:var(--c-ink)}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--c-ink);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{transition:transform 180ms ease-out}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- pills / badges ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;
}
.pill-orange{border:1px solid var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.pill-accent{border:1px solid var(--c-accent);color:var(--c-accent);background:var(--c-accent-soft)}
.pill-ink{background:var(--c-ink);color:#fff;border:1px solid var(--c-ink)}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:13px;color:var(--c-text-3);
}
.breadcrumb a{color:var(--c-text-3)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line)}
.breadcrumb .current{color:var(--c-text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- article layout ---------- */
main{display:block;padding-bottom:80px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 260px;
  gap:64px;align-items:start;padding-top:26px;
}
.article-main{max-width:780px}
.article-head{padding-bottom:22px;border-bottom:1px solid var(--c-line)}
.article-head h1{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.28;font-weight:800;letter-spacing:.01em;
  margin:16px 0 16px;color:var(--c-text);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.article-meta .num{font-variant-numeric:tabular-nums}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line)}
.article-hero{margin:26px 0 0}
.article-hero .frame{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--r-m);background:var(--c-surface-2);border:1px solid var(--c-line);
}
.article-hero img{width:100%;height:100%;object-fit:cover}
.article-hero figcaption{margin-top:10px;font-size:13px;color:var(--c-text-3)}

.article-body{margin-top:34px;font-size:16.5px;line-height:1.9;color:var(--c-text);word-break:break-word}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  font-size:26px;line-height:1.3;font-weight:700;letter-spacing:.01em;
  margin:2.4em 0 .9em;
}
.article-body h3{font-size:21px;line-height:1.4;font-weight:600;margin:2em 0 .8em}
.article-body h4{font-size:18px;font-weight:600;margin:1.6em 0 .7em}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(255,90,31,.35)}
.article-body a:hover{border-bottom-color:var(--c-primary)}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:1.4em}
.article-body li{margin:.5em 0;line-height:1.85}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body blockquote{
  margin:1.8em 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-surface-2);border-radius:0 var(--r-s) var(--r-s) 0;color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-m);margin:1.6em 0;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--c-text-3);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:15px}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:10px 14px;text-align:left;line-height:1.7;
}
.article-body th{background:var(--c-surface-2);font-weight:600}
.article-body code{
  font-family:var(--mono);font-size:14px;background:var(--c-surface-2);
  padding:2px 6px;border-radius:var(--r-s);
}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:2.4em 0}

.article-empty{
  margin-top:34px;padding:56px 28px;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
}
.article-empty .empty-icon{
  width:44px;height:44px;margin:0 auto 16px;color:var(--c-accent);
}
.article-empty h2{font-size:21px;font-weight:700;margin-bottom:10px}
.article-empty p{font-size:14.5px;color:var(--c-text-2);margin-bottom:22px}

/* ---------- article footer blocks ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--c-line)}
.tag-row .label{font-size:13px;color:var(--c-text-3);align-self:center;margin-right:4px}
.tag-row a{
  height:30px;padding:0 14px;border-radius:999px;display:inline-flex;align-items:center;
  font-size:13px;color:var(--c-text-2);border:1px solid var(--c-line);background:var(--c-surface);
  transition:border-color 180ms ease-out,color 180ms ease-out,transform 180ms ease-out;
}
.tag-row a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}
.pager a{
  display:block;padding:18px 20px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);
  transition:border-color 180ms ease-out,transform 180ms ease-out,box-shadow 180ms ease-out;
}
.pager a:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.pager .pager-label{display:block;font-size:12.5px;color:var(--c-text-3);margin-bottom:6px}
.pager .pager-title{display:block;font-size:15px;font-weight:600;line-height:1.5;color:var(--c-text)}
.pager .pager-next{text-align:right}

.related{margin-top:56px}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:22px}
.related-head h2{font-size:24px;font-weight:700;line-height:1.35}
.related-head p{font-size:13.5px;color:var(--c-text-3);margin-top:4px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;
  transition:border-color 180ms ease-out,transform 180ms ease-out,box-shadow 180ms ease-out;
}
.card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.card .thumb{position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease-out}
.card:hover .thumb img{transform:scale(1.03)}
.card .card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:16.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14px;line-height:1.75;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .card-foot{margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}

.back-row{margin-top:30px}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:26px}
.aside-block{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:20px}
.aside-block h3{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--c-text-2);margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--c-line)}
.aside-list{list-style:none;padding:0;margin:0}
.aside-list li{border-bottom:1px solid var(--c-line)}
.aside-list li:last-child{border-bottom:none}
.aside-list a{display:flex;gap:10px;padding:12px 0;font-size:14px;line-height:1.6;color:var(--c-text-2);transition:color 180ms ease-out}
.aside-list a:hover{color:var(--c-primary)}
.aside-list .idx{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--c-text-3);font-size:13px;flex:0 0 auto}
.aside-cta{
  background:var(--c-surface);border:1px solid var(--c-primary);border-radius:var(--r-m);padding:22px 20px;
}
.aside-cta h3{font-size:16px;font-weight:700;margin-bottom:8px}
.aside-cta p{font-size:13.5px;line-height:1.75;color:var(--c-text-2);margin-bottom:16px}

/* ---------- dark banner ---------- */
.dark-cta{margin-top:72px;background:var(--c-ink);border-radius:var(--r-l);padding:40px 44px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;position:relative;overflow:hidden}
.dark-cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.dark-cta h2{font-size:23px;font-weight:700;line-height:1.4;margin-bottom:8px}
.dark-cta p{font-size:14.5px;color:rgba(255,255,255,.7);line-height:1.75;max-width:620px}
.dark-cta .dark-actions{flex:0 0 auto;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:36px;padding-bottom:48px}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:18px 0 20px;max-width:300px}
.site-footer .logo-text b{color:#fff}
.site-footer .logo-text span{color:rgba(255,255,255,.5)}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.75);
  transition:border-color 180ms ease-out,color 180ms ease-out,background 180ms ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:#fff;background:rgba(255,90,31,.18)}
.footer-col h4{font-size:13px;font-weight:700;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:2px}
.footer-col a{display:inline-block;font-size:14px;line-height:2;color:rgba(255,255,255,.72);transition:color 180ms ease-out}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.45);
}
.footer-bottom .mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-aside{display:none}
  .article-main{max-width:none}
}
@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:32px}
}
@media (max-width:900px){
  .header-inner{min-height:64px;gap:16px}
  .main-nav{
    display:none;
  }
  .main-nav.is-open{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:fixed;left:0;right:0;top:64px;bottom:0;
    background:var(--c-bg);padding:16px 24px 40px;margin:0;
    animation:fadeIn 200ms ease-out;overflow-y:auto;
  }
  .main-nav.is-open a{
    width:100%;font-size:20px;font-weight:600;color:var(--c-text);
    padding:18px 0;border-bottom:1px solid var(--c-line);
  }
  .main-nav.is-open a::after{display:none}
  .main-nav.is-open a.active{color:var(--c-primary)}
  .nav-toggle{display:flex;margin-left:8px}
  .header-actions .btn{display:none}
  @keyframes fadeIn{from{opacity:0}to{opacity:1}}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 20px}
  .article-head h1{font-size:clamp(24px,7vw,30px)}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18.5px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .pager .pager-next{text-align:left}
  .dark-cta{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}
  .dark-cta .dark-actions{width:100%}
  .dark-cta .dark-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .breadcrumb .current{max-width:200px}
  .article-body table{font-size:14px}
  .article-body th,.article-body td{padding:8px 10px}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-success:#2E9E5B;
  --c-warn:#E9A20B;
  --c-error:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04),0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
  --gutter:24px;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--c-text);}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--gutter);}
.reading{max-width:780px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,242,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color 180ms ease-out,background 180ms ease-out;
}
.site-header.is-scrolled{border-bottom:1px solid var(--c-line);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  min-height:76px;
}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:32px;height:32px;display:block;flex:0 0 auto;}
.logo-mark svg{width:100%;height:100%;display:block;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:800;letter-spacing:.01em;}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:32px;flex:1 1 auto;justify-content:center;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;white-space:nowrap;transition:color 180ms ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-primary);transition:width 180ms ease-out;
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--c-text);font-weight:600;}
.main-nav a.active::after{width:100%;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-link{
  width:42px;height:42px;border-radius:999px;border:1px solid var(--c-line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-text-2);
  transition:border-color 180ms ease-out,color 180ms ease-out,background 180ms ease-out;
}
.icon-link:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  padding:0;flex-direction:column;justify-content:center;align-items:flex-end;gap:7px;
}
.nav-toggle span{display:block;width:24px;height:1.5px;background:var(--c-text);transition:transform 200ms ease-out,opacity 200ms ease-out;}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4.25px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4.25px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform 180ms ease-out,background 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--c-text);color:var(--c-text);background:transparent;}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px);}
.btn-ghost-light{border-color:rgba(255,255,255,.4);color:#fff;background:transparent;}
.btn-ghost-light:hover{background:#fff;color:var(--c-ink);border-color:#fff;}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:var(--c-primary-soft);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--c-primary);min-height:44px;
}
.link-arrow svg{transition:transform 180ms ease-out;}
.link-arrow:hover svg{transform:translateX(3px);}
.link-plain{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-text-2);
  min-height:38px;transition:color 180ms ease-out;
}
.link-plain:hover{color:var(--c-primary);}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;
}
.badge-accent{border:1px solid var(--c-accent);color:#00897A;background:var(--c-accent-soft);}
.badge-primary{border:1px solid var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.badge-ink{background:var(--c-ink);color:#fff;border:1px solid var(--c-ink);}
.badge-plain{border:1px solid var(--c-line);color:var(--c-text-2);background:#fff;}

/* ---------- hero ---------- */
.page-hero{padding:56px 0 72px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--c-text-3);transition:color 180ms ease-out;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-text-2);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-copy h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.18;font-weight:800;margin:18px 0 18px;
}
.hero-copy h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:600px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 0;}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.anchor-pills a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;font-size:13.5px;color:var(--c-text-2);
  transition:border-color 180ms ease-out,color 180ms ease-out,transform 180ms ease-out;
}
.anchor-pills a:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
.hero-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;aspect-ratio:4/3;
  background:var(--c-surface-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,24,28,0) 45%,rgba(20,24,28,.34) 100%);
}
.hero-media .media-tag{
  position:absolute;top:16px;right:16px;z-index:2;
  background:var(--c-primary);color:#fff;border-radius:999px;height:28px;
  display:inline-flex;align-items:center;padding:0 13px;font-size:12.5px;font-weight:600;
}
.hero-media .media-note{
  position:absolute;left:20px;bottom:18px;z-index:2;color:#fff;
  font-size:13.5px;line-height:1.6;max-width:78%;
}
.hero-media .media-note b{display:block;font-size:15px;font-weight:700;}

/* ---------- metrics ---------- */
.metric-strip{border-top:1px solid var(--c-line);margin-top:56px;padding-top:26px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric{}
.metric .num{display:block;font-size:30px;font-weight:800;line-height:1.2;}
.metric .num small{font-size:15px;font-weight:600;color:var(--c-text-2);margin-left:4px;}
.metric .label{display:block;font-size:13px;color:var(--c-text-3);margin-top:6px;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:20px;border-bottom:1px solid var(--c-line);margin-bottom:44px;
}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--c-text-2);}
.section-sub{font-size:14px;color:var(--c-text-3);white-space:nowrap;}

/* ---------- alternating blocks ---------- */
.alt-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--c-line);
}
.alt-row:first-of-type{padding-top:0;}
.alt-row:last-of-type{border-bottom:0;padding-bottom:0;}
.alt-row.reverse .alt-media{order:2;}
.alt-media{position:relative;border-radius:var(--r-l);overflow:hidden;aspect-ratio:4/3;background:var(--c-surface-2);}
.alt-media img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out;}
.alt-row:hover .alt-media img{transform:scale(1.03);}
.alt-media .idx{
  position:absolute;top:14px;left:14px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-s);padding:4px 10px;font-size:12.5px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.alt-body h3{font-size:21px;line-height:1.4;margin-bottom:14px;}
.alt-body h3 .dot{color:var(--c-accent);}
.alt-body p{color:var(--c-text-2);font-size:16px;line-height:1.9;}
.alt-points{margin:18px 0 20px;}
.alt-points li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--c-text-2);
  line-height:2;border-bottom:1px solid var(--c-line);
}
.alt-points li:last-child{border-bottom:0;}
.alt-points li::before{
  content:"";position:absolute;left:0;top:15px;width:7px;height:7px;border-radius:2px;background:var(--c-accent);
}

/* ---------- scene list ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;}
.scene-item{
  display:flex;align-items:flex-start;gap:14px;padding:22px 0;border-bottom:1px solid var(--c-line);
}
.scene-item .dot{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--c-accent);
  color:#00897A;background:var(--c-accent-soft);display:inline-flex;align-items:center;justify-content:center;
  margin-top:6px;
}
.scene-item h4{font-size:16px;font-weight:600;margin-bottom:4px;}
.scene-item p{font-size:14px;color:var(--c-text-2);line-height:1.75;}

/* ---------- assure ---------- */
.assure-list{border-top:1px solid var(--c-line);}
.assure-item{
  display:grid;grid-template-columns:56px 1fr;gap:20px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--c-line);
}
.assure-item .no{
  font-size:15px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;
  border-left:2px solid var(--c-primary);padding-left:10px;line-height:1.6;
}
.assure-item h4{font-size:17px;margin-bottom:6px;}
.assure-item p{font-size:14.5px;color:var(--c-text-2);line-height:1.8;}

/* ---------- related links ---------- */
.rel-section{padding:56px 0 0;}
.rel-links{
  display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;border-top:1px solid var(--c-line);
}
.rel-links a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:500;
  transition:color 180ms ease-out,padding-left 180ms ease-out;
}
.rel-links a span.tag{font-size:12.5px;color:var(--c-text-3);}
.rel-links a:hover{color:var(--c-primary);padding-left:6px;}

/* ---------- cta band ---------- */
.cta-band{
  margin:64px 0 72px;background:var(--c-ink);color:#fff;border-radius:var(--r-l);
  padding:48px 52px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:26px;line-height:1.35;max-width:620px;}
.cta-band p{color:rgba(255,255,255,.68);font-size:14.5px;margin:10px 0 0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr 1fr;gap:36px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:rgba(255,255,255,.45);}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:280px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.18);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);
  transition:border-color 180ms ease-out,color 180ms ease-out,background 180ms ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:#fff;background:rgba(255,90,31,.18);}
.footer-col h4{font-size:13px;color:rgba(255,255,255,.45);font-weight:600;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.75);transition:color 180ms ease-out;}
.footer-col ul a:hover{color:#fff;}
.footer-col address{font-style:normal;line-height:2;color:rgba(255,255,255,.75);font-size:14px;}
.footer-col address .num{font-variant-numeric:tabular-nums;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5);}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 22px;}
}
@media (max-width:1023px){
  .header-inner{min-height:70px;}
  .main-nav{
    position:fixed;inset:70px 0 0 0;background:rgba(247,245,242,.98);
    flex-direction:column;justify-content:flex-start;align-items:stretch;
    gap:0;padding:24px;opacity:0;visibility:hidden;transition:opacity 200ms ease-out;
    border-top:1px solid var(--c-line);
  }
  .main-nav.is-open{opacity:1;visibility:visible;}
  .main-nav a{
    font-size:20px;padding:16px 0;border-bottom:1px solid var(--c-line);font-weight:500;
  }
  .main-nav a::after{display:none;}
  .main-nav a.active{color:var(--c-primary);}
  .nav-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:36px 0 52px;}
  .hero-media{aspect-ratio:16/10;order:2;}
  .metric-strip{grid-template-columns:repeat(2,1fr);gap:22px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:32px;}
  .alt-row{grid-template-columns:1fr;gap:26px;padding:34px 0;}
  .alt-row.reverse .alt-media{order:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .scene-grid{grid-template-columns:1fr;}
  .rel-links{grid-template-columns:1fr;}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 18px;}
  .hero-copy h1{font-size:30px;}
  .hero-lead{font-size:16px;}
  .hero-cta .btn{width:100%;}
  .metric-strip{grid-template-columns:repeat(2,1fr);gap:18px;}
  .metric .num{font-size:24px;}
  .section-head h2{font-size:23px;}
  .alt-body h3{font-size:18px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .assure-item{grid-template-columns:1fr;gap:8px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-success:#2E9E5B;
  --c-error:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04),0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0}
li{list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,242,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .18s ease-out;
}
.site-header.scrolled{box-shadow:0 8px 26px -18px rgba(20,24,28,.4)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px}
.logo-mark{width:32px;height:32px;display:grid;place-items:center;flex:0 0 32px}
.logo-mark svg{width:32px;height:32px;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.01em}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:32px}
.main-nav a{
  position:relative;display:flex;align-items:center;min-height:44px;
  font-size:15px;font-weight:500;color:var(--c-text-2);transition:color .18s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:7px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-text);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px}
.icon-link{
  display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  color:var(--c-text-2);border:1px solid transparent;transition:all .18s ease-out;
}
.icon-link:hover{color:var(--c-primary);border-color:var(--c-line);background:var(--c-surface)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:6px;
  width:44px;height:44px;padding:0 10px;background:none;border:0;cursor:pointer;border-radius:var(--r-s);
}
.nav-toggle span{display:block;height:1.5px;background:var(--c-text);transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle.is-open span:first-child{transform:translateY(3.75px) rotate(45deg)}
.nav-toggle.is-open span:last-child{transform:translateY(-3.75px) rotate(-45deg)}
.nav-cta-mobile{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .18s ease-out;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-light:hover{background:#fff;color:var(--c-ink);border-color:#fff;transform:translateY(-1px)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;min-height:44px;
  font-size:14.5px;font-weight:600;color:var(--c-primary);
}
.text-link span{transition:transform .18s ease-out}
.text-link:hover span{transform:translateX(3px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;height:27px;padding:0 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;border:1px solid transparent;
}
.badge-accent{color:var(--c-accent);border-color:var(--c-accent);background:var(--c-accent-soft)}
.badge-primary{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.badge-ink{background:var(--c-ink);color:#fff}

/* ---------- page hero ---------- */
.page-hero{padding:44px 0 56px;border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:26px;flex-wrap:wrap}
.breadcrumb a{color:var(--c-text-3);transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--c-text-2)}
.page-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.2;font-weight:800;
  margin:20px 0 18px;letter-spacing:.01em;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:34em}
.kpi-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:36px;border-top:1px solid var(--c-line);padding-top:22px;
}
.kpi{padding-right:20px}
.kpi + .kpi{border-left:1px solid var(--c-line);padding-left:22px}
.kpi b{display:block;font-size:19px;font-weight:800;font-variant-numeric:tabular-nums;margin-bottom:4px}
.kpi span{font-size:13px;color:var(--c-text-3);line-height:1.6;display:block}
.hero-aside{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:26px 26px 20px;
}
.hero-aside h2{font-size:16px;font-weight:700;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.aside-list li{
  display:flex;justify-content:space-between;gap:16px;align-items:baseline;
  padding:14px 0;border-bottom:1px solid var(--c-line);font-size:14.5px;
}
.aside-list li:last-child{border-bottom:0}
.aside-list span{color:var(--c-text-3);flex:0 0 auto}
.aside-list b{font-weight:600;text-align:right}
.hero-aside .text-link{margin-top:10px}

/* ---------- spec layout ---------- */
.spec-layout{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:56px;
  padding:64px 0 8px;
}
.index-nav{position:sticky;top:96px;align-self:start;border-left:1px solid var(--c-line)}
.index-nav a{
  display:block;padding:12px 0 12px 18px;margin-left:-1px;
  border-left:3px solid transparent;
  font-size:14.5px;color:var(--c-text-2);min-height:44px;line-height:20px;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.index-nav a:hover{color:var(--c-text);border-left-color:var(--c-line)}
.index-nav a.active{color:var(--c-text);font-weight:600;border-left-color:var(--c-primary)}

.spec-section{padding-bottom:52px;margin-bottom:52px;border-bottom:1px solid var(--c-line);scroll-margin-top:96px}
.spec-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.spec-title{display:flex;align-items:baseline;gap:12px;font-size:24px;font-weight:700;margin-bottom:14px}
.spec-no{font-size:13px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:.04em;flex:0 0 auto}
.spec-section > p{color:var(--c-text-2);max-width:44em}

.desc-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;margin-top:22px}
.desc-item{border-bottom:1px solid var(--c-line);padding:16px 0}
.desc-item dt{font-size:14px;color:var(--c-text-3);margin-bottom:5px}
.desc-item dd{margin:0;font-size:16.5px;font-weight:500;line-height:1.7}

.spec-table{margin-top:26px;font-size:15px}
.spec-table thead th{
  background:var(--c-surface-2);font-size:13.5px;font-weight:600;color:var(--c-text-2);
  text-align:left;padding:12px 16px;border-bottom:1px solid var(--c-line);
}
.spec-table td{padding:14px 16px;border-bottom:1px solid var(--c-line);vertical-align:top;line-height:1.7}
.spec-table td:first-child{color:var(--c-text-2);width:32%}
.spec-table tbody tr{transition:background .18s ease-out}
.spec-table tbody tr:hover{background:var(--c-surface-2)}

.check-list{margin-top:22px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--c-line);
  font-size:15.5px;color:var(--c-text-2);
}
.check-list li::before{
  content:"";flex:0 0 8px;height:8px;margin-top:11px;border-radius:2px;background:var(--c-accent);
}

.spec-figure{margin:28px 0 0}
.spec-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-m);
  background:var(--c-surface-2);
}
.spec-figure figcaption{font-size:13px;color:var(--c-text-3);margin-top:12px}

/* ---------- sections ---------- */
.section{padding:72px 0}
.section-alt{background:var(--c-surface-2)}
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;gap:24px;
  padding-bottom:20px;border-bottom:1px solid var(--c-line);margin-bottom:36px;
}
.section-head h2{font-size:clamp(23px,3vw,30px);font-weight:700;line-height:1.3}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--c-text-2)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:20px 0 20px 14px;border-left:3px solid transparent;
  font-size:17px;font-weight:600;cursor:pointer;list-style:none;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--c-primary);
  line-height:1;transition:transform .18s ease-out;
}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item[open] summary{border-left-color:var(--c-primary)}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{padding:0 0 22px 14px;color:var(--c-text-2);font-size:15.5px;line-height:1.9;max-width:60em}

/* ---------- links ---------- */
.link-list{border-top:1px solid var(--c-line)}
.link-list li{border-bottom:1px solid var(--c-line)}
.link-list a{
  display:flex;justify-content:space-between;align-items:center;gap:24px;
  min-height:72px;padding:16px 0;transition:color .18s ease-out;
}
.link-list a:hover{color:var(--c-primary)}
.link-list .lk-main{font-size:16.5px;font-weight:600}
.link-list .lk-sub{display:block;font-size:14px;color:var(--c-text-3);margin-top:2px;font-weight:400}
.link-list .lk-arrow{font-size:18px;color:var(--c-primary);transition:transform .18s ease-out;flex:0 0 auto}
.link-list a:hover .lk-arrow{transform:translateX(3px)}

/* ---------- CTA banner ---------- */
.cta-banner{
  position:relative;background-color:var(--c-ink);
  background-image:linear-gradient(120deg,rgba(20,24,28,.94),rgba(20,24,28,.86)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;padding:64px 0;
}
.cta-inner{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center}
.cta-banner h2{font-size:clamp(23px,3vw,30px);line-height:1.3;font-weight:700}
.cta-banner p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.72);max-width:46em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-primary:hover{box-shadow:var(--shadow-2)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.5)}
.footer-brand p{line-height:1.9;max-width:30em;color:rgba(255,255,255,.62)}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{
  display:grid;place-items:center;width:38px;height:38px;border-radius:50%;
  border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.75);
  transition:all .18s ease-out;
}
.footer-social a:hover{border-color:var(--c-primary);color:#fff;background:rgba(255,90,31,.18)}
.footer-col h4{
  font-size:13px;font-weight:600;color:rgba(255,255,255,.5);
  margin-bottom:18px;
}
.footer-col li a{
  display:inline-flex;align-items:center;min-height:34px;
  line-height:2;color:rgba(255,255,255,.72);transition:color .18s ease-out;
}
.footer-col li a:hover{color:#fff}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:13px;color:rgba(255,255,255,.48);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .page-hero-grid{grid-template-columns:1fr;gap:36px}
  .spec-layout{grid-template-columns:1fr;gap:34px;padding-top:48px}
  .index-nav{
    position:static;display:flex;gap:8px;overflow-x:auto;
    border-left:0;border-bottom:1px solid var(--c-line);padding-bottom:14px;
    -webkit-overflow-scrolling:touch;
  }
  .index-nav a{
    margin:0;padding:8px 15px;border:1px solid var(--c-line);border-radius:999px;
    white-space:nowrap;min-height:40px;line-height:22px;
  }
  .index-nav a:hover{border-color:var(--c-line);color:var(--c-text-2)}
  .index-nav a.active{border-color:var(--c-primary);background:var(--c-primary-soft);color:var(--c-primary)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:16px;line-height:1.85}
  .nav-toggle{display:flex}
  .header-actions{display:none}
  .main-nav{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:20px 20px 36px;overflow-y:auto;
    background:rgba(247,245,242,.98);
    backdrop-filter:blur(10px);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav a{
    font-size:20px;font-weight:500;width:100%;min-height:60px;
    border-bottom:1px solid var(--c-line);
  }
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--c-primary)}
  .nav-cta-mobile{
    display:flex;margin-top:26px;width:100%;min-height:50px;
  }
  .page-hero{padding:28px 0 40px}
  .kpi-row{grid-template-columns:1fr;border-top:1px solid var(--c-line)}
  .kpi{padding:16px 0}
  .kpi + .kpi{border-left:0;border-top:1px solid var(--c-line);padding-left:0}
  .spec-title{font-size:20px;flex-direction:column;gap:6px;align-items:flex-start}
  .desc-grid{grid-template-columns:1fr;gap:0}
  .spec-table thead th,.spec-table td{padding:12px 10px;font-size:14px}
  .section{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .link-list a{flex-direction:column;align-items:flex-start;gap:6px}
  .link-list .lk-arrow{align-self:flex-end;margin-top:-24px}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .logo-text span{display:none}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-ok:#2E9E5B;
  --c-warn:#E9A20B;
  --c-err:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04),0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
  --container:1200px;
  --ease:180ms ease-out;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-text);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:none;padding:0;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:.01em;}
strong,b{font-weight:700;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:2px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:all var(--ease);white-space:nowrap;
}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(255,90,31,.85);}
.btn-primary:hover{background:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{border-color:var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn-ghost:hover{background:#fff;color:var(--c-ink);border-color:#fff;}
.btn-white{background:#fff;color:var(--c-primary);}
.btn-white:hover{background:var(--c-primary-soft);color:var(--c-primary-hover);transform:translateY(-1px);}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow svg{transition:transform var(--ease);}
.link-arrow:hover{color:var(--c-primary-hover);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ============ 徽章 / 胶囊 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:27px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1;
}
.badge-orange{border:1px solid var(--c-primary);color:var(--c-primary);}
.badge-accent{border:1px solid var(--c-accent);color:var(--c-accent);background:var(--c-accent-soft);}
.badge-ink{background:var(--c-ink);color:#fff;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,242,.86);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-stuck{
  background:rgba(247,245,242,.94);
  border-bottom-color:var(--c-line);
  box-shadow:0 6px 20px -18px rgba(20,24,28,.4);
}
.header-inner{display:flex;align-items:center;gap:32px;min-height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:30px;height:30px;display:inline-flex;}
.logo-mark svg{width:100%;height:100%;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.01em;}
.logo-text span{font-size:11.5px;color:var(--c-text-3);letter-spacing:.04em;}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:8px;}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);padding:6px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-primary);transition:width var(--ease);
}
.main-nav a:hover{color:var(--c-text);}
.main-nav a:hover::after{width:100%;}
.main-nav a.active{color:var(--c-text);font-weight:600;}
.main-nav a.active::after{width:100%;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px;}
.icon-link{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);color:var(--c-text-2);
}
.icon-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:6px;}
.nav-toggle span{display:block;width:22px;height:1.5px;background:var(--c-ink);transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.75px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.75px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;inset:76px 0 0 0;z-index:55;
  background:var(--c-bg);padding:28px 24px 32px;
  opacity:0;pointer-events:none;transition:opacity 200ms ease-out;
}
.mobile-drawer.is-open{opacity:1;pointer-events:auto;}
.mobile-drawer a.drawer-link{
  display:block;font-size:20px;font-weight:600;padding:18px 0;border-bottom:1px solid var(--c-line);
}
.mobile-drawer a.drawer-link.active{color:var(--c-primary);}
.mobile-drawer .btn{margin-top:28px;}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;background:var(--c-ink);color:#fff;overflow:hidden;
  border-radius:0 0 var(--r-l) var(--r-l);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  opacity:.28;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(20,24,28,.94) 0%,rgba(20,24,28,.78) 48%,rgba(20,24,28,.52) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:78px;padding-bottom:78px;}
.breadcrumb{display:flex;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;}
.breadcrumb a{color:rgba(255,255,255,.6);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span{opacity:.6;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:end;}
.page-hero h1{
  font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.16;margin:18px 0 20px;color:#fff;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-lead{font-size:17px;color:rgba(255,255,255,.78);max-width:620px;line-height:1.85;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:38px;
  border-top:1px solid rgba(255,255,255,.14);padding-top:24px;max-width:620px;
}
.hero-facts .fact-num{font-size:27px;font-weight:800;color:#fff;line-height:1.1;}
.hero-facts .fact-num i{font-style:normal;font-size:14px;font-weight:600;color:var(--c-primary);margin-left:2px;}
.hero-facts .fact-label{font-size:13px;color:rgba(255,255,255,.6);margin-top:6px;}
.hero-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;aspect-ratio:4/5;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(20,24,28,.86),rgba(20,24,28,0) 58%);
}
.hero-media-tag{position:absolute;top:16px;right:16px;z-index:3;background:var(--c-primary);color:#fff;}
.hero-media-cap{
  position:absolute;left:20px;right:20px;bottom:18px;z-index:3;color:#fff;
}
.hero-media-cap strong{display:block;font-size:15px;font-weight:700;}
.hero-media-cap span{font-size:12.5px;color:rgba(255,255,255,.72);}

/* ============ 通用板块 ============ */
.section{padding:78px 0;}
.section-alt{background:var(--c-surface-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;}
.section-head p{font-size:14px;color:var(--c-text-2);max-width:560px;margin-top:10px;}
.section-head .head-side{font-size:14px;color:var(--c-text-3);white-space:nowrap;}

/* 卖点卡 */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.feature-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:26px 22px;transition:all var(--ease);
}
.feature-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.feature-icon{
  width:40px;height:40px;border-radius:var(--r-s);background:var(--c-accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--c-accent);margin-bottom:16px;
}
.feature-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.feature-card p{font-size:14px;color:var(--c-text-2);line-height:1.8;}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:1px;background:var(--c-line);
}
.tl-item{
  position:relative;display:grid;grid-template-columns:40px 1fr 260px;gap:28px;
  padding:0 0 34px 0;
}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:relative;z-index:2;width:11px;height:11px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-accent);
  margin:9px auto 0;
}
.tl-item.is-current .tl-node{
  background:var(--c-primary);border-color:var(--c-primary);
  box-shadow:0 0 0 5px var(--c-primary-soft);
}
.tl-body{border-bottom:1px solid var(--c-line);padding-bottom:30px;}
.tl-item:last-child .tl-body{border-bottom:none;padding-bottom:0;}
.tl-head{display:flex;align-items:baseline;gap:14px;margin-bottom:10px;}
.tl-num{font-size:26px;font-weight:800;color:var(--c-primary);line-height:1;font-variant-numeric:tabular-nums;}
.tl-head h3{font-size:21px;font-weight:600;}
.tl-body p{font-size:15.5px;color:var(--c-text-2);line-height:1.85;max-width:640px;}
.tl-aside{
  align-self:start;border-left:1px solid var(--c-line);padding-left:20px;margin-top:6px;
}
.tl-aside .aside-value{font-size:22px;font-weight:800;color:var(--c-ink);line-height:1.2;font-variant-numeric:tabular-nums;}
.tl-aside .aside-label{font-size:13px;color:var(--c-text-3);margin-top:6px;line-height:1.7;}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  overflow:hidden;transition:all var(--ease);display:flex;flex-direction:column;
}
.scene-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.scene-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-surface-2);}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.scene-card:hover .scene-thumb img{transform:scale(1.03);}
.scene-body{padding:22px 20px 24px;}
.scene-body h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.scene-body p{font-size:14px;color:var(--c-text-2);line-height:1.8;}
.scene-body ul{margin-top:14px;border-top:1px solid var(--c-line);padding-top:12px;}
.scene-body li{
  position:relative;padding-left:14px;font-size:13.5px;color:var(--c-text-2);line-height:2;
}
.scene-body li::before{
  content:"";position:absolute;left:0;top:13px;width:5px;height:5px;background:var(--c-accent);
}

/* 规格列表 */
.spec-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.spec-side{position:sticky;top:104px;}
.spec-side h2{font-size:26px;font-weight:700;margin-bottom:14px;}
.spec-side p{font-size:14.5px;color:var(--c-text-2);line-height:1.9;}
.spec-side .spec-note{
  margin-top:22px;background:var(--c-surface);border:1px solid var(--c-line);
  border-left:3px solid var(--c-primary);border-radius:var(--r-s);padding:16px 18px;
  font-size:13.5px;color:var(--c-text-2);line-height:1.8;
}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 32px;}
.dl-grid > div{border-bottom:1px solid var(--c-line);padding:16px 0;}
.dl-grid dt{font-size:14px;color:var(--c-text-3);margin-bottom:6px;}
.dl-grid dd{margin:0;font-size:17px;font-weight:600;color:var(--c-text);font-variant-numeric:tabular-nums;}
.spec-table{width:100%;border-collapse:collapse;margin-top:26px;}
.spec-table th,.spec-table td{
  text-align:left;padding:15px 16px;border-bottom:1px solid var(--c-line);font-size:14.5px;
}
.spec-table th{font-size:13px;font-weight:600;color:var(--c-text-3);background:var(--c-bg);}
.spec-table td:first-child{font-weight:600;}
.spec-table tr:hover td{background:var(--c-surface-2);}

/* ============ FAQ ============ */
.faq-list{margin-top:8px;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:24px 4px 24px 0;font-size:17px;font-weight:600;line-height:1.6;
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary .faq-sign{
  flex-shrink:0;width:22px;height:22px;position:relative;margin-top:3px;
}
.faq-item summary .faq-sign::before,
.faq-item summary .faq-sign::after{
  content:"";position:absolute;background:var(--c-text-2);transition:transform var(--ease),background var(--ease);
}
.faq-item summary .faq-sign::before{left:0;top:10px;width:22px;height:1.6px;}
.faq-item summary .faq-sign::after{left:10px;top:0;width:1.6px;height:22px;}
.faq-item[open] summary{color:var(--c-text);}
.faq-item[open] summary .faq-sign::before{background:var(--c-primary);}
.faq-item[open] summary .faq-sign::after{transform:rotate(90deg);background:var(--c-primary);}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--c-primary);padding-left:18px;}
.faq-answer{padding:0 4px 26px 0;max-width:820px;}
.faq-item[open] .faq-answer{padding-left:18px;}
.faq-answer p{font-size:15px;color:var(--c-text-2);line-height:1.9;}

/* ============ 咨询表单 ============ */
.inquiry-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.inquiry-intro h2{font-size:clamp(23px,2.6vw,30px);font-weight:700;margin-bottom:16px;}
.inquiry-intro > p{font-size:15px;color:var(--c-text-2);line-height:1.9;}
.point-list{margin-top:26px;}
.point-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px solid var(--c-line);}
.point-list li:first-child{border-top:1px solid var(--c-line);}
.point-list svg{flex-shrink:0;margin-top:4px;color:var(--c-accent);}
.point-list span{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}
.contact-line{margin-top:26px;font-size:14.5px;color:var(--c-text-2);}
.contact-line strong{color:var(--c-text);font-variant-numeric:tabular-nums;}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);padding:34px 32px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:13.5px;font-weight:600;color:var(--c-text-2);}
.field input,.field select,.field textarea{
  min-height:48px;padding:12px 14px;border:1px solid var(--c-line);border-radius:var(--r-s);
  background:#fff;font-size:15px;line-height:1.6;transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:118px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 1px var(--c-primary);background:var(--c-primary-soft);
}
.field.has-error input,.field.has-error select{border-color:var(--c-err);}
.field .err-msg{display:none;font-size:13px;color:var(--c-err);}
.field.has-error .err-msg{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--c-text-2);line-height:1.7;}
.check-row input{width:17px;height:17px;min-height:17px;margin-top:4px;accent-color:var(--c-primary);}
.form-foot{margin-top:8px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.privacy-note{font-size:12px;color:var(--c-text-3);margin-top:14px;line-height:1.7;}
.form-success{
  display:none;margin-top:18px;background:var(--c-accent-soft);border-left:3px solid var(--c-accent);
  border-radius:var(--r-s);padding:14px 16px;font-size:14px;color:#0A6B5D;
}
.form-success.is-visible{display:block;}

/* ============ 相关链接 + 转化横幅 ============ */
.related-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0 32px;border-top:1px solid var(--c-line);}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 2px;border-bottom:1px solid var(--c-line);font-size:15px;font-weight:600;
}
.related-list a:hover{color:var(--c-primary);border-bottom-color:var(--c-primary);}
.related-list a svg{transition:transform var(--ease);color:var(--c-text-3);}
.related-list a:hover svg{transform:translateX(3px);color:var(--c-primary);}

.cta-band{
  position:relative;background:var(--c-ink);color:#fff;border-radius:var(--r-l);
  padding:46px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;
  background-image:repeating-linear-gradient(115deg,#fff 0 1px,transparent 1px 60px);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:700;color:#fff;margin-bottom:10px;}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.72);line-height:1.8;max-width:620px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:66px 0 0;margin-top:78px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:36px;}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:rgba(255,255,255,.5);}
.footer-brand p{font-size:14px;line-height:1.9;margin-top:18px;max-width:300px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:38px;height:38px;border:1px solid rgba(255,255,255,.2);border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:16px;}
.footer-col li{line-height:2;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:14px;line-height:2;color:rgba(255,255,255,.72);}
.footer-col p .num{color:#fff;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.5);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .spec-side{position:static;}
  .feature-grid,.scene-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .header-inner{gap:20px;}
  .main-nav{display:none;}
  .header-actions .btn-outline{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .hero-grid{grid-template-columns:1fr;gap:34px;align-items:start;}
  .hero-media{aspect-ratio:16/10;}
  .tl-item{grid-template-columns:40px 1fr;}
  .tl-aside{grid-column:2;border-left:none;padding-left:0;border-top:1px solid var(--c-line);padding-top:14px;margin-top:2px;display:flex;gap:18px;align-items:baseline;}
  .spec-wrap{grid-template-columns:1fr;gap:32px;}
  .inquiry-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .page-hero .container{padding-top:52px;padding-bottom:56px;}
  .hero-facts{grid-template-columns:repeat(3,1fr);gap:14px;}
  .hero-facts .fact-num{font-size:22px;}
  .feature-grid,.scene-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .related-list{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:26px 20px;}
  .cta-band{padding:34px 24px;}
  .tl-head h3{font-size:18px;}
  .tl-num{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:8px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.1);}
  .footer-col h4{padding:16px 0 0;}
  .footer-col ul,.footer-col p{padding-bottom:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px;}
  .hero-cta .btn{width:100%;}
  .hero-facts{grid-template-columns:repeat(2,1fr);}
}

/* roulang page: category4 */
:root{
  --c-primary:#FF5A1F;
  --c-primary-hover:#E94A0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#00B39A;
  --c-accent-soft:#E6F7F4;
  --c-accent-ink:#00786A;
  --c-ink:#14181C;
  --c-ink-2:#1F252B;
  --c-bg:#F7F5F2;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEBE6;
  --c-line:#E4DFD8;
  --c-text:#1A1D21;
  --c-text-2:#5C636A;
  --c-text-3:#8C939A;
  --c-ok:#2E9E5B;
  --c-warn:#E9A20B;
  --c-err:#D93A28;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
  --shadow-1:0 1px 2px rgba(20,24,28,.04), 0 10px 28px -14px rgba(20,24,28,.12);
  --shadow-2:0 18px 44px -20px rgba(20,24,28,.20);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
}
body.nav-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:.01em}
p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;background:none;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{border-color:var(--c-ink);color:var(--c-ink);background:transparent}
.btn-outline:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--c-ink);border-color:#fff}
.btn-white{background:#fff;color:var(--c-primary);border-color:#fff}
.btn-white:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);transform:translateY(-1px)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--c-primary);transition:color .18s ease-out;
}
.text-link svg{transition:transform .18s ease-out}
.text-link:hover{color:var(--c-primary-hover)}
.text-link:hover svg{transform:translateX(3px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:27px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-primary{border:1px solid var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.badge-accent{border:1px solid var(--c-accent);color:var(--c-accent-ink);background:var(--c-accent-soft)}
.badge-ink{background:var(--c-ink);color:#fff}
.badge-solid{background:var(--c-primary);color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,242,.6);
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(247,245,242,.92);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom-color:var(--c-line);
}
.header-inner{display:flex;align-items:center;gap:32px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:32px;height:32px;flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text b{font-size:16px;font-weight:800;color:var(--c-text)}
.logo-text span{font-size:11px;color:var(--c-text-3);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;transition:color .18s ease-out;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-text);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.nav-mobile-cta{display:none}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-link{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;
  border-radius:999px;border:1px solid var(--c-line);color:var(--c-text-2);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.icon-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-soft)}
.nav-toggle{
  display:none;width:44px;height:44px;padding:0 10px;margin-left:auto;
  background:none;border:0;cursor:pointer;flex-direction:column;justify-content:center;gap:7px;
}
.nav-toggle span{display:block;height:1.5px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease-out}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(4.25px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-4.25px) rotate(-45deg)}

/* ---------- 面包屑与首屏 ---------- */
.page-hero{padding:44px 0 76px;position:relative}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:28px;flex-wrap:wrap}
.breadcrumb a{transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text-2)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-copy .badge{margin-bottom:20px}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.16;
  margin-bottom:20px;letter-spacing:.01em;
}
.hero-copy h1 em{font-style:normal;color:var(--c-primary)}
.hero-lead{font-size:17px;color:var(--c-text-2);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--c-line);padding-top:22px;max-width:540px;
}
.hero-metrics div{padding-right:20px}
.hero-metrics div + div{border-left:1px solid var(--c-line);padding-left:20px}
.hero-metrics strong{display:block;font-size:24px;font-weight:800;line-height:1.2;color:var(--c-text)}
.hero-metrics span{font-size:13px;color:var(--c-text-3);line-height:1.6}
.hero-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  aspect-ratio:4/3;background:var(--c-surface-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(20,24,28,.42),rgba(20,24,28,0) 58%);
}
.hero-media .media-tag{position:absolute;top:18px;right:18px;z-index:2}
.hero-media .media-caption{
  position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
  color:#fff;font-size:13px;line-height:1.7;
}
.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-surface);font-size:13.5px;color:var(--c-text-2);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.pill:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0}
.section-alt{background:var(--c-surface-2)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  margin-bottom:44px;flex-wrap:wrap;
}
.section-title{font-size:clamp(23px,2.4vw,30px);font-weight:700}
.section-desc{font-size:14.5px;color:var(--c-text-2);max-width:560px;line-height:1.85}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-accent-ink);margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--c-accent)}

/* ---------- 服务范围 ---------- */
.scope-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.scope-aside h2{font-size:clamp(22px,2.3vw,28px);font-weight:700;margin-bottom:16px}
.scope-aside p{font-size:15px;color:var(--c-text-2);margin-bottom:22px}
.scope-note{
  border:1px solid var(--c-line);border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-m) var(--r-m) 0;background:var(--c-surface);
  padding:18px 20px;font-size:14px;color:var(--c-text-2);line-height:1.85;
}
.scope-list{border-top:1px solid var(--c-line)}
.scope-item{
  display:grid;grid-template-columns:48px 1fr;gap:20px;
  padding:26px 0;border-bottom:1px solid var(--c-line);
}
.scope-icon{
  width:48px;height:48px;border-radius:var(--r-m);display:flex;align-items:center;justify-content:center;
  background:var(--c-accent-soft);color:var(--c-accent-ink);
}
.scope-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scope-item p{font-size:14.5px;color:var(--c-text-2);line-height:1.85}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);
}
.step{padding:30px 26px 6px 0;position:relative}
.step + .step{border-left:1px solid var(--c-line);padding-left:26px}
.step-no{
  display:block;font-size:28px;font-weight:800;line-height:1;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;font-weight:600;margin:16px 0 8px}
.step p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.step-bar{margin-top:18px;height:2px;width:44px;border-radius:2px;background:var(--c-primary);opacity:.28}

/* ---------- 服务方式条带 ---------- */
.ways{display:grid;grid-template-columns:repeat(4,1fr)}
.way{padding:30px 26px;border-left:1px solid var(--c-line)}
.way:first-child{border-left:0;padding-left:0}
.way h3{font-size:16.5px;font-weight:600;margin-bottom:8px}
.way p{font-size:14px;color:var(--c-text-2);line-height:1.8}
.way .way-tag{display:block;font-size:13px;font-weight:600;color:var(--c-accent-ink);margin-bottom:10px}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.split-media{border-radius:var(--r-l);overflow:hidden;aspect-ratio:4/3;background:var(--c-surface-2)}
.split-media img{width:100%;height:100%;object-fit:cover}
.split-copy h2{font-size:clamp(22px,2.3vw,28px);font-weight:700;margin-bottom:18px}
.split-copy p{font-size:15.5px;color:var(--c-text-2);margin-bottom:18px}
.check-list{margin:22px 0 26px}
.check-list li{
  display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;
  padding:12px 0;border-bottom:1px solid var(--c-line);font-size:15px;
}
.check-list li:first-child{border-top:1px solid var(--c-line)}
.check-list svg{margin-top:5px;color:var(--c-accent)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:920px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  position:relative;display:flex;gap:14px;align-items:flex-start;
  padding:22px 56px 22px 20px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;line-height:1.6;
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:2px;
  background:var(--c-primary);opacity:0;transition:opacity .18s ease-out;
}
.faq-item summary::after{
  content:"+";position:absolute;right:16px;top:22px;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:500;color:var(--c-text-3);
  transition:transform .18s ease-out,color .18s ease-out;
}
.faq-item[open] summary::before{opacity:1}
.faq-item[open] summary::after{content:"−";color:var(--c-primary);transform:rotate(180deg)}
.faq-item summary:hover{color:var(--c-primary)}
.faq-index{
  flex:0 0 auto;font-size:13px;font-weight:700;color:var(--c-text-3);
  line-height:1.9;letter-spacing:.02em;
}
.faq-item[open] .faq-index{color:var(--c-primary)}
.faq-body{
  padding:0 56px 26px 54px;font-size:15px;color:var(--c-text-2);line-height:1.9;
  max-width:820px;
}
.faq-body strong{color:var(--c-text);font-weight:600}

/* ---------- 咨询表单 ---------- */
.inquiry-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.inquiry-copy h2{font-size:clamp(22px,2.3vw,28px);font-weight:700;margin-bottom:16px}
.inquiry-copy p{font-size:15px;color:var(--c-text-2);margin-bottom:24px}
.point-list li{
  display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start;
  padding:14px 0;border-bottom:1px solid var(--c-line);font-size:15px;color:var(--c-text-2);
}
.point-list li:first-child{border-top:1px solid var(--c-line)}
.point-list svg{margin-top:5px;color:var(--c-primary)}
.inquiry-contact{
  margin-top:26px;font-size:14px;color:var(--c-text-2);line-height:2;
  border-left:3px solid var(--c-primary);padding-left:16px;
}
.inquiry-contact b{color:var(--c-text);font-weight:700}
.inquiry-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  padding:34px;box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13.5px;font-weight:600;color:var(--c-text-2)}
.field .hint{font-size:12px;color:var(--c-text-3);line-height:1.6}
input[type="text"],input[type="tel"],select,textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-s);
  background:var(--c-surface);font-size:15px;
  transition:border-color .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.75}
select{appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238C939A' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
input::placeholder,textarea::placeholder{color:var(--c-text-3)}
input[type="text"]:focus,input[type="tel"]:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--c-primary);background:var(--c-primary-soft);
  box-shadow:0 0 0 1px var(--c-primary);
}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.form-privacy{font-size:12px;color:var(--c-text-3);line-height:1.7;margin-top:14px}
.form-alert{
  display:flex;gap:10px;align-items:flex-start;padding:13px 16px;border-radius:var(--r-s);
  font-size:14px;line-height:1.75;margin-bottom:20px;
}
.form-alert.ok{background:var(--c-accent-soft);border-left:3px solid var(--c-accent);color:var(--c-accent-ink)}
.form-alert.err{background:#FDECEA;border-left:3px solid var(--c-err);color:#A82A1C}

/* ---------- 相关链接 ---------- */
.related-list{border-top:1px solid var(--c-line)}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;border-bottom:1px solid var(--c-line);
  font-size:16px;font-weight:600;transition:color .18s ease-out,padding-left .18s ease-out;
}
.related-list a em{font-style:normal;font-size:13.5px;font-weight:500;color:var(--c-text-3);margin-left:14px}
.related-list a .arrow{transition:transform .18s ease-out;color:var(--c-text-3)}
.related-list a:hover{color:var(--c-primary);padding-left:12px}
.related-list a:hover .arrow{transform:translateX(4px);color:var(--c-primary)}

/* ---------- 转化横幅 ---------- */
.cta-banner{
  position:relative;overflow:hidden;border-radius:var(--r-l);
  background:var(--c-ink);color:#fff;
  padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:44px;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.14;
}
.cta-banner::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.cta-banner > *{position:relative;z-index:1}
.cta-banner h2{font-size:clamp(21px,2.2vw,27px);font-weight:700;margin-bottom:12px}
.cta-banner p{font-size:14.5px;color:rgba(255,255,255,.72);max-width:640px}
.cta-banner .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:68px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-text b{color:#fff}
.footer-brand .logo-text span{color:rgba(255,255,255,.45)}
.footer-brand p{font-size:14px;line-height:1.9;margin:20px 0 22px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.footer-social a:hover{color:#fff;border-color:var(--c-primary);background:rgba(255,90,31,.14)}
.footer-col h4{font-size:13px;font-weight:600;color:rgba(255,255,255,.5);margin-bottom:18px}
.footer-col li{font-size:14px;line-height:2.1}
.footer-col li a{transition:color .18s ease-out}
.footer-col li a:hover{color:#fff}
.footer-col .tel{color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:58px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap;
}
.footer-bottom a{transition:color .18s ease-out}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:44px}
  .scope-grid,.split,.inquiry-grid{gap:44px}
}
@media (max-width:1023px){
  .main-nav{gap:20px}
  .main-nav a{font-size:14.5px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-media{aspect-ratio:16/10}
  .scope-grid{grid-template-columns:1fr;gap:36px}
  .split{grid-template-columns:1fr;gap:36px}
  .split-media{order:-1;aspect-ratio:16/10}
  .inquiry-grid{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step{padding:28px 22px 4px 0}
  .step:nth-child(3){border-left:0;padding-left:0}
  .ways{grid-template-columns:repeat(2,1fr)}
  .way{padding:26px 22px}
  .way:nth-child(odd){border-left:0;padding-left:0}
  .way:nth-child(3){border-top:1px solid var(--c-line)}
  .way:nth-child(4){border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:36px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 20px}
  .header-inner{min-height:64px;gap:12px}
  .main-nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    display:flex;flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:20px 20px 32px;background:rgba(247,245,242,.98);
    border-top:1px solid var(--c-line);
    opacity:0;transform:translateY(-8px);pointer-events:none;
    transition:opacity .2s ease-out,transform .2s ease-out;
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .main-nav a{
    width:100%;font-size:20px;font-weight:600;color:var(--c-text);
    padding:18px 0;border-bottom:1px solid var(--c-line);
  }
  .main-nav a::after{display:none}
  .main-nav a.active{color:var(--c-primary)}
  .nav-mobile-cta{display:inline-flex;margin-top:26px;border-bottom:0 !important;padding:0 !important}
  .header-actions{margin-left:auto}
  .header-actions .btn{display:none}
  .nav-toggle{display:flex;margin-left:0}
  .page-hero{padding:28px 0 52px}
  .hero-copy h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-metrics{grid-template-columns:1fr 1fr;row-gap:20px}
  .hero-metrics div:nth-child(2){border-left:1px solid var(--c-line)}
  .hero-metrics div:nth-child(3){border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:16px;grid-column:1 / -1}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .steps{grid-template-columns:1fr;border-top:0}
  .step{padding:20px 0 20px 20px;border-top:1px solid var(--c-line);border-left:0 !important}
  .step + .step{border-left:0;padding-left:20px}
  .step::before{content:"";position:absolute;left:0;top:30px;width:2px;height:26px;background:var(--c-primary);border-radius:2px}
  .ways{grid-template-columns:1fr}
  .way{padding:22px 0;border-left:0 !important;border-top:1px solid var(--c-line)}
  .way:first-child{border-top:0}
  .scope-item{grid-template-columns:40px 1fr;gap:16px;padding:22px 0}
  .scope-icon{width:40px;height:40px}
  .faq-item summary{padding:20px 48px 20px 16px;font-size:16px}
  .faq-body{padding:0 24px 22px 16px;font-size:14.5px}
  .inquiry-card{padding:24px 20px}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:36px 24px;gap:26px}
  .cta-banner .cta-actions{width:100%}
  .cta-banner .cta-actions .btn{flex:1 1 auto}
  .related-list a{flex-direction:column;align-items:flex-start;gap:6px;font-size:15.5px}
  .related-list a em{margin-left:0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .site-footer{padding-top:52px;margin-top:64px}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px}
  .hero-metrics strong{font-size:21px}
  .section-title{font-size:22px}
  .step-no{font-size:24px}
  .btn{padding:0 20px;font-size:14.5px}
  .anchor-pills .pill{font-size:13px;height:34px}
}