/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-light:#FFEDE6;
  --accent:#12B3A6;
  --accent-hover:#0E9488;
  --accent-light:#E3F7F5;
  --amber:#FFC24B;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark:#191622;
  --dark-2:#2A1F2E;
  --danger:#E5484D;
  --grad-main:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-accent:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --grad-dark:linear-gradient(160deg,#191622 0%,#2A1F2E 100%);
  --r-xl:28px;
  --r-lg:24px;
  --r-img:20px;
  --r-input:14px;
  --r-pill:999px;
  --sh:0 8px 24px rgba(25,22,34,.06);
  --sh-hover:0 18px 46px rgba(255,92,57,.16);
  --sh-deep:0 24px 60px rgba(25,22,34,.12);
  --ease:cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.22;letter-spacing:.5px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
input,textarea{font:inherit;color:inherit}
::selection{background:var(--brand);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:18px;
}
.eyebrow.acc{background:var(--accent-light);color:var(--accent-hover)}
.sec-title{font-size:clamp(24px,3.4vw,38px);font-weight:700}
.sec-title em{font-style:normal;color:var(--brand)}
.sec-desc{margin-top:16px;color:var(--ink-2);font-size:16.5px;line-height:1.85}
.lead{font-size:17px;color:var(--ink-2);line-height:1.9}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.5px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 10px 26px rgba(255,92,57,.28)}
.btn-primary:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(255,92,57,.36)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid rgba(255,92,57,.4)}
.btn-ghost:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--sh-hover)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--grad-accent);color:#fff;box-shadow:0 10px 26px rgba(18,179,166,.26)}
.btn-accent:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(18,179,166,.34)}
.btn-plain{color:var(--brand);font-weight:600;padding:14px 8px}
.btn-plain::after{content:"→";margin-left:6px;transition:transform .25s var(--ease)}
.btn-plain:hover::after{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-block{width:100%}

/* ============ 徽章与标签 ============ */
.tag{
  display:inline-flex;align-items:center;
  padding:5px 14px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.5px;
}
.tag-acc{background:var(--accent-light);color:var(--accent-hover)}
.tag-amber{background:#FFF6E2;color:#B87A00}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.stat-badge{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 24px;box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,92,57,.3)}
.stat-badge .v{font-size:clamp(28px,4vw,46px);font-weight:800;line-height:1.05;color:var(--brand);letter-spacing:-.5px}
.stat-badge .v small{font-size:.5em;font-weight:700;margin-left:3px;color:var(--ink-2)}
.stat-badge .l{margin-top:8px;font-size:14px;color:var(--ink-2)}
.stat-badge.acc .v{color:var(--accent)}
.stat-badge.plain{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);box-shadow:none}
.stat-badge.plain .v{color:#fff}
.stat-badge.plain .l{color:#C9C2D4}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 28px rgba(25,22,34,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .25s var(--ease)}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad-main);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 8px 18px rgba(255,92,57,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16.5px;font-weight:800;letter-spacing:.5px;color:var(--ink)}
.logo-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:2px}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink-2);white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-menu a:hover{background:var(--brand-light);color:var(--brand)}
.nav-menu a.active{background:var(--brand-light);color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-actions .btn{padding:11px 24px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s var(--ease)}
.nav-toggle.on i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.on i:nth-child(2){opacity:0}
.nav-toggle.on i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(25,22,34,.45);
  opacity:0;visibility:hidden;transition:.3s var(--ease);z-index:110;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:120;padding:22px 20px calc(24px + env(safe-area-inset-bottom));
  transform:translateX(100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  box-shadow:-20px 0 50px rgba(25,22,34,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:10px}
.drawer-close{width:38px;height:38px;border-radius:12px;background:var(--bg);display:grid;place-items:center;font-size:18px;color:var(--ink-2)}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  height:48px;display:flex;align-items:center;padding:0 14px;border-radius:14px;
  font-size:15.5px;color:var(--ink-2);border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--brand);font-weight:600;background:var(--brand-light);border-color:transparent}
.drawer .btn{margin-top:18px}

/* ============ Hero ============ */
.hero{position:relative;padding:76px 0 88px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-180px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,57,.16),transparent 68%);pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-200px;left:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,179,166,.14),transparent 68%);pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(30px,5vw,54px);line-height:1.15;font-weight:800;letter-spacing:.8px}
.hero h1 em{font-style:normal;background:var(--grad-main);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:17px;color:var(--ink-2);line-height:1.9;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-badges .stat-badge{padding:16px 20px;min-width:132px}
.hero-badges .stat-badge .v{font-size:26px}
.hero-badges .stat-badge .l{font-size:13px;margin-top:4px}
.hero-visual{position:relative}
.hero-visual>img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:0 24px 60px rgba(255,92,57,.2);
}
.float-badge{
  position:absolute;background:#fff;border-radius:var(--r-pill);
  padding:11px 20px;box-shadow:0 12px 32px rgba(25,22,34,.14);
  display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:var(--ink);
  animation:floaty 5s ease-in-out infinite;
}
.float-badge i{width:9px;height:9px;border-radius:50%;background:var(--accent);display:block}
.fb-1{left:-16px;bottom:34px}
.fb-2{right:-12px;top:30px;animation-delay:1.4s}
.fb-2 i{background:var(--amber)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}

/* ============ 信任条 ============ */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;padding:26px 0}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px}
.trust-label{font-size:13.5px;color:var(--ink-3);letter-spacing:1px;flex-shrink:0}
.trust-items{display:flex;flex-wrap:wrap;gap:10px 26px}
.trust-items span{
  font-size:14.5px;font-weight:600;color:#B9B2C0;letter-spacing:1px;
  transition:color .25s var(--ease),transform .25s var(--ease);cursor:default;
}
.trust-items span:hover{color:var(--brand);transform:translateY(-2px)}

/* ============ 卖点错落 ============ */
.feature-layout{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.feature-stack{display:grid;gap:24px}
.card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh);overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-main);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,92,57,.3)}
.card:hover::before{transform:scaleX(1)}
.card-xl{border-radius:var(--r-xl);padding:34px}
.card-num{
  display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--brand-light);color:var(--brand);font-weight:800;font-size:15px;margin-bottom:18px;
}
.card-num.acc{background:var(--accent-light);color:var(--accent-hover)}
.card h3{font-size:20px;font-weight:600;margin-bottom:12px}
.card p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.card-img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);margin-bottom:22px}
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.mini{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.mini:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.mini h4{font-size:16.5px;font-weight:600;margin-bottom:8px}
.mini p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.mini .dot{width:30px;height:30px;border-radius:10px;background:var(--accent-light);display:grid;place-items:center;color:var(--accent-hover);font-weight:800;font-size:13px;margin-bottom:14px}

/* ============ 深色演示区 ============ */
.section-dark{background:var(--grad-dark);color:#fff;padding:88px 0;position:relative;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;top:-160px;left:8%;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,57,.16),transparent 70%);
}
.section-dark .sec-title{color:#fff}
.section-dark .sec-desc{color:#C9C2D4}
.section-dark .eyebrow{background:rgba(255,92,57,.18);color:#FFB39E}
.demo-visual{position:relative;margin-bottom:52px}
.demo-visual img{
  width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:var(--r-xl);
  border:1px solid rgba(255,255,255,.14);
}
.demo-visual::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);
  background:linear-gradient(180deg,rgba(25,22,34,.08),rgba(25,22,34,.62));
  pointer-events:none;
}
.demo-caption{
  position:absolute;left:32px;bottom:28px;right:32px;z-index:2;
  font-size:15px;color:#EDE8F2;letter-spacing:.5px;
}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);padding:24px;position:relative;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.step:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.step b{display:block;font-size:13px;color:var(--amber);letter-spacing:2px;margin-bottom:12px}
.step h3{font-size:17px;color:#fff;margin-bottom:8px;font-weight:600}
.step p{font-size:14px;color:#C9C2D4;line-height:1.8}
.step::after{
  content:"";position:absolute;top:44px;right:-20px;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.3),transparent);
}
.steps .step:last-child::after{display:none}

/* ============ 证据区 ============ */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:36px}
.proof-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:30px;box-shadow:var(--sh);display:flex;flex-direction:column;gap:18px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.quote-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img)}
.quote-card blockquote{margin:0;font-size:16px;line-height:1.9;color:var(--ink);position:relative;padding-left:18px}
.quote-card blockquote::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--grad-main)}
.quote-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-3)}
.stars{color:var(--amber);letter-spacing:2px;font-size:14px}

/* ============ 服务方案 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:30px;box-shadow:var(--sh);position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.plan h3{font-size:20px;font-weight:700;margin-bottom:8px}
.plan .plan-sub{font-size:14px;color:var(--ink-3);margin-bottom:20px}
.plan ul{display:grid;gap:11px;margin:22px 0 26px}
.plan li{display:flex;gap:10px;font-size:14.8px;color:var(--ink-2);line-height:1.75}
.plan li::before{content:"✓";color:var(--accent);font-weight:800;flex-shrink:0}
.plan.featured{
  border:2px solid transparent;
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-main) border-box;
  transform:translateY(-12px);
  box-shadow:0 26px 60px rgba(255,92,57,.18);
}
.plan.featured:hover{transform:translateY(-16px)}
.plan-flag{
  position:absolute;top:-14px;right:24px;
  background:var(--grad-main);color:#fff;font-size:12.5px;font-weight:700;
  padding:6px 16px;border-radius:var(--r-pill);letter-spacing:1px;
  box-shadow:0 8px 20px rgba(255,92,57,.3);
}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,92,57,.3)}
.post-cover{display:block;overflow:hidden;background:var(--brand-light)}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s var(--ease)}
.post-card:hover .post-cover img{transform:scale(1.05)}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-body h3{font-size:17.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a:hover{color:var(--brand)}
.post-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.post-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);
}
.post-foot a{color:var(--brand);font-weight:600}
.post-foot a:hover{color:var(--brand-hover)}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-xl);color:var(--ink-2);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:18px;background:var(--brand-light);color:var(--brand);
  display:grid;place-items:center;margin:0 auto 16px;font-size:22px;font-weight:800;
}
.empty-state p{font-size:15px;margin-bottom:20px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh);overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item[open]{border-color:rgba(255,92,57,.45);box-shadow:var(--sh-hover)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex-shrink:0;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .3s var(--ease);margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 26px 24px;color:var(--ink-2);font-size:15.5px;line-height:1.9}

/* ============ 底部 CTA ============ */
.cta-card{
  background:var(--grad-main);border-radius:var(--r-xl);
  padding:60px 48px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 30px 70px rgba(255,92,57,.26);
}
.cta-card::before{
  content:"";position:absolute;top:-120px;right:-80px;width:380px;height:380px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-card::after{
  content:"";position:absolute;bottom:-160px;left:-60px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.1);
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(24px,3.4vw,36px);color:#fff;max-width:560px}
.cta-inner p{color:rgba(255,255,255,.9);margin-top:14px;font-size:16px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-primary{background:#fff;color:var(--brand);box-shadow:0 12px 30px rgba(25,22,34,.16)}
.cta-actions .btn-primary:hover{box-shadow:0 18px 40px rgba(25,22,34,.22)}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-actions .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12);box-shadow:none}

/* ============ 反馈表单 ============ */
.feedback{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:var(--ink-2)}
.field input,.field textarea{
  width:100%;padding:13px 16px;border-radius:var(--r-input);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  font-size:15px;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,92,57,.14);
}
.field textarea{min-height:110px;resize:vertical}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--grad-dark);color:#C9C2D4;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .logo-mark{box-shadow:none}
.footer-brand b{color:#fff;font-size:16.5px;font-weight:800;letter-spacing:.5px}
.footer-brand span{display:block;font-size:11.5px;color:#8E879A;letter-spacing:2px}
.site-footer p{font-size:14.5px;line-height:1.9;color:#C9C2D4}
.footer-col h4{color:#fff;font-size:15.5px;font-weight:600;margin-bottom:18px;letter-spacing:1px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:#C9C2D4;transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{font-size:14.5px;color:#C9C2D4}
.footer-contact li b{color:#fff;font-weight:600;display:block;font-size:14px;margin-bottom:2px}
.qr-slot{
  margin-top:18px;width:104px;height:104px;border-radius:18px;
  border:1px dashed rgba(255,255,255,.24);background:rgba(255,255,255,.05);
  display:grid;place-items:center;font-size:12.5px;color:#8E879A;text-align:center;line-height:1.5;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 calc(22px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8E879A;
}
.footer-bottom a{color:#C9C2D4}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 浮动 CTA / 移动底栏 ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  padding:15px 26px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 16px 40px rgba(255,92,57,.34);
  transition:transform .25s var(--ease),opacity .3s var(--ease),box-shadow .25s var(--ease);
}
.float-cta:hover{transform:scale(1.04);box-shadow:0 20px 50px rgba(255,92,57,.42)}
.float-cta.is-hidden{opacity:0;visibility:hidden;transform:translateY(14px)}
.mobile-bar{display:none}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-menu a{padding:9px 12px;font-size:14.5px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section-dark{padding:64px 0}
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .feature-layout{grid-template-columns:1fr}
  .mini-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .step::after{display:none}
  .proof-stats{grid-template-columns:1fr 1fr}
  .plan-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .plan.featured{transform:none}
  .plan.featured:hover{transform:translateY(-4px)}
  .post-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feedback{grid-template-columns:1fr}
  .cta-card{padding:48px 32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-dark{padding:56px 0}
  .section-tight{padding:44px 0}
  .float-cta{display:none}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:75;
    height:52px;align-items:center;justify-content:center;
    background:var(--grad-main);color:#fff;font-size:15px;font-weight:600;letter-spacing:1px;
    padding-bottom:env(safe-area-inset-bottom);box-sizing:content-box;
    box-shadow:0 -8px 26px rgba(25,22,34,.16);
  }
  body{padding-bottom:52px}
  .site-footer{padding-bottom:8px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .trust-row{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:575px){
  .hero h1{letter-spacing:.5px}
  .hero-cta .btn{width:100%}
  .hero-badges{gap:10px}
  .hero-badges .stat-badge{flex:1 1 calc(50% - 5px);min-width:0;padding:14px 16px}
  .hero-badges .stat-badge .v{font-size:22px}
  .mini-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .proof-stats{grid-template-columns:1fr 1fr}
  .proof-cards{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-item summary{padding:18px;font-size:15.5px}
  .faq-body{padding:0 18px 20px;font-size:15px}
  .card,.card-xl{padding:22px}
  .cta-card{padding:36px 22px}
  .cta-actions .btn{width:100%}
  .float-badge{padding:9px 15px;font-size:12.5px}
  .fb-1{left:-6px;bottom:20px}
  .fb-2{right:-6px;top:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-soft:#FFEDE6;
  --accent:#12B3A6;
  --accent-hover:#0E9C91;
  --accent-soft:#E3F7F5;
  --gold:#FFC24B;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark:#191622;
  --dark-2:#2A1F2E;
  --grad:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-accent:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:20px;
  --r-xs:14px;
  --sh-1:0 8px 24px rgba(25,22,34,.06);
  --sh-2:0 18px 46px rgba(255,92,57,.16);
  --t:.25s cubic-bezier(.4,0,.2,1);
  --container:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-hover);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:.5px;line-height:1.25;font-weight:700;}
p{margin:0 0 1.2em;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.5px;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,92,57,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(255,92,57,.34);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid rgba(255,92,57,.4);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-hover);transform:translateY(-2px);}
.btn-dark{background:var(--grad-accent);color:#fff;box-shadow:0 10px 24px rgba(18,179,166,.26);}
.btn-dark:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 36px rgba(18,179,166,.32);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}
.btn.is-loading{color:transparent;position:relative;overflow:hidden;}
.btn.is-loading::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.15) 25%,rgba(255,255,255,.4) 50%,rgba(255,255,255,.15) 75%);
  background-size:200% 100%;animation:shimmer 1.2s infinite linear;
}
@keyframes shimmer{0%{background-position:200% 0;}100%{background-position:-200% 0;}}
.link-more{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{color:var(--accent-hover);gap:10px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.5px;
  background:var(--brand-soft);color:var(--brand-hover);
}
.badge-accent{background:var(--accent-soft);color:#0B8177;}
.badge-outline{background:#fff;color:var(--ink-2);border:1px solid var(--line);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag-cloud a{
  padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);transition:all var(--t);
}
.tag-cloud a:hover{border-color:rgba(255,92,57,.4);color:var(--brand-hover);background:var(--brand-soft);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.scrolled{box-shadow:0 6px 22px rgba(25,22,34,.08);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--t);}
.site-header.scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:40px;height:40px;border-radius:13px;flex:0 0 auto;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:19px;font-weight:800;box-shadow:0 8px 18px rgba(255,92,57,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:1px;}
.logo-text span{font-size:11px;color:var(--ink-3);letter-spacing:2px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-menu a{
  padding:9px 15px;border-radius:999px;font-size:14.5px;font-weight:500;color:var(--ink-2);
  transition:all var(--t);
}
.nav-menu a:hover{color:var(--brand-hover);background:var(--brand-soft);}
.nav-menu a.active{background:var(--brand-soft);color:var(--brand-hover);font-weight:700;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:all var(--t);}
.nav-overlay{
  position:fixed;inset:0;background:rgba(25,22,34,.42);
  opacity:0;visibility:hidden;transition:all var(--t);z-index:95;
}
body.nav-open .nav-overlay{opacity:1;visibility:visible;}

/* ============ 页面头 ============ */
.page-head{
  position:relative;padding:56px 0 64px;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(255,92,57,.16),transparent 60%),
    radial-gradient(700px 380px at 2% 110%,rgba(18,179,166,.14),transparent 62%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:22px;
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#D9D2DA;}
.article-head{max-width:880px;}
.article-head h1{
  font-size:clamp(28px,4.2vw,44px);font-weight:800;line-height:1.22;
  margin:16px 0 18px;letter-spacing:.8px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:13.5px;color:var(--ink-3);
}
.article-meta b{color:var(--ink-2);font-weight:600;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#DED7DF;}

/* ============ 摘要卡 ============ */
.abstract-card{
  background:var(--brand-soft);
  border-radius:var(--r-md);
  padding:26px 30px;
  margin:0 auto 40px;
  max-width:900px;
  border:1px solid rgba(255,92,57,.16);
  position:relative;overflow:hidden;
}
.abstract-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);
}
.abstract-card h2{
  font-size:15px;font-weight:700;color:var(--brand-hover);margin-bottom:10px;letter-spacing:1px;
}
.abstract-card p{margin:0;font-size:15.5px;line-height:1.85;color:var(--ink-2);}

/* ============ 正文 ============ */
.article-shell{padding:56px 0 72px;}
.article-wrap{max-width:780px;margin:0 auto;}
.article-body{font-size:17px;line-height:1.9;color:#2B2533;}
.article-body p{margin:0 0 1.35em;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.6vw,26px);font-weight:700;color:var(--ink);
  margin:44px 0 18px;padding-left:16px;letter-spacing:.6px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:20px;font-weight:600;margin:32px 0 14px;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px;color:var(--ink-2);}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.6em;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;
  background:#FFF4EE;border-left:3px solid var(--brand);border-radius:0 16px 16px 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:16px;margin:26px auto;box-shadow:var(--sh-1);
}
.article-body figure{margin:26px 0;}
.article-body figcaption,.article-body .caption{
  text-align:center;font-size:13px;color:var(--ink-3);margin-top:10px;
}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-hover);}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border-radius:16px;overflow:hidden;box-shadow:var(--sh-1);background:#fff;
}
.article-body thead{background:var(--brand-soft);}
.article-body th,.article-body td{
  padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);
}
.article-body th{font-weight:700;color:var(--ink);}
.article-body tbody tr:nth-child(even){background:#FFFAF7;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  background:#F6F2F0;border-radius:6px;padding:2px 7px;font-size:14.5px;
  color:#C2410C;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.article-body pre{
  background:var(--dark);color:#EFE9F3;padding:20px 22px;border-radius:18px;
  overflow:auto;margin:26px 0;font-size:14px;line-height:1.75;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ============ 空态 ============ */
.article-empty{
  max-width:640px;margin:0 auto;text-align:center;
  background:#fff;border:1px dashed rgba(255,92,57,.35);
  border-radius:var(--r-lg);padding:56px 32px;box-shadow:var(--sh-1);
}
.article-empty .empty-icon{
  width:64px;height:64px;border-radius:22px;margin:0 auto 20px;
  background:var(--brand-soft);display:grid;place-items:center;
  font-size:26px;font-weight:800;color:var(--brand);
}
.article-empty h2{font-size:22px;margin-bottom:12px;}
.article-empty p{color:var(--ink-2);font-size:15.5px;margin-bottom:26px;}

/* ============ 文末 ============ */
.article-foot{margin-top:56px;padding-top:34px;border-top:1px solid var(--line);}
.article-foot h3{font-size:15px;font-weight:700;letter-spacing:1px;color:var(--ink-2);margin-bottom:14px;}
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:34px 0 12px;
}
.pager a{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:20px 22px;transition:all var(--t);display:block;
}
.pager a:hover{border-color:rgba(255,92,57,.4);box-shadow:var(--sh-2);transform:translateY(-4px);}
.pager span{display:block;font-size:12.5px;color:var(--ink-3);margin-bottom:8px;letter-spacing:1px;}
.pager b{display:block;font-size:15.5px;color:var(--ink);font-weight:600;line-height:1.6;}
.pager .next{text-align:right;}

/* ============ 相关推荐 ============ */
.related{padding:72px 0 8px;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:34px;
}
.section-head h2{font-size:clamp(22px,3vw,32px);font-weight:700;}
.section-head p{color:var(--ink-2);font-size:15px;margin:10px 0 0;max-width:640px;}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;position:relative;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);opacity:0;transition:opacity var(--t);z-index:2;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,92,57,.28);}
.post-card:hover::before{opacity:1;}
.post-card .thumb{aspect-ratio:16/10;overflow:hidden;background:#F6F2F0;}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.4,0,.2,1);}
.post-card:hover .thumb img{transform:scale(1.05);}
.post-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.post-card h3{
  font-size:17px;font-weight:700;line-height:1.55;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{color:var(--ink);}
.post-card h3 a:hover{color:var(--brand-hover);}
.post-card .excerpt{
  font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{
  margin-top:auto;display:flex;align-items:center;gap:12px;
  font-size:12.5px;color:var(--ink-3);padding-top:16px;border-top:1px solid var(--line);
}
.post-card .meta .badge{padding:4px 11px;font-size:12px;}

/* ============ FAQ ============ */
.faq-section{padding:72px 0 8px;}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:rgba(255,92,57,.3);}
.faq-item.open{border-color:rgba(255,92,57,.5);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q .arrow{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;
  font-size:13px;transition:transform var(--t),background var(--t);
}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:520px;}
.faq-a .inner{padding:0 24px 22px;color:var(--ink-2);font-size:15px;line-height:1.9;}

/* ============ CTA ============ */
.cta-band{padding:72px 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#191622 0%,#2A1F2E 100%);
  border-radius:var(--r-lg);padding:56px 48px;
  color:#fff;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-card::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-140px;top:-160px;background:var(--grad);opacity:.18;filter:blur(20px);
}
.cta-card > *{position:relative;z-index:1;}
.cta-card h2{font-size:clamp(22px,3vw,32px);margin-bottom:12px;letter-spacing:.8px;}
.cta-card p{color:#C9C2D4;font-size:15.5px;margin:0;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 浮动 CTA / 移动条 ============ */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:80;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 24px;border-radius:999px;
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 14px 34px rgba(255,92,57,.36);
  transition:transform var(--t),opacity var(--t),box-shadow var(--t);
}
.float-cta:hover{color:#fff;transform:scale(1.04);box-shadow:0 18px 40px rgba(255,92,57,.42);}
.float-cta.is-hidden{opacity:0;pointer-events:none;transform:translateY(14px);}
.mobile-cta-bar{display:none;}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(160deg,#191622 0%,#2A1F2E 100%);
  color:#C9C2D4;padding:66px 0 0;font-size:14.5px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .logo-mark{width:38px;height:38px;font-size:18px;}
.footer-brand span{display:flex;flex-direction:column;line-height:1.15;}
.footer-brand b{font-size:16.5px;color:#fff;letter-spacing:1px;}
.footer-brand span span{font-size:11px;color:#9A93A6;letter-spacing:2px;}
.site-footer p{color:#A79FB4;font-size:14px;line-height:1.85;margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:1px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{color:#C9C2D4;font-size:14px;}
.footer-col ul a:hover{color:var(--gold);}
.footer-contact li{display:flex;flex-direction:column;gap:2px;font-size:13.5px;color:#A79FB4;}
.footer-contact b{color:#fff;font-weight:600;font-size:14px;}
.qr-slot{
  margin-top:18px;width:104px;height:104px;border-radius:16px;
  border:1px dashed rgba(201,194,212,.35);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:#8E879A;line-height:1.5;
}
.footer-bottom{
  border-top:1px solid rgba(201,194,212,.16);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:#8E879A;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .nav-wrap{height:64px;gap:14px;}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:86px 20px 24px;z-index:100;
    transform:translateX(100%);transition:transform var(--t);
    box-shadow:-16px 0 44px rgba(25,22,34,.14);
    overflow-y:auto;
  }
  body.nav-open .nav-menu{transform:translateX(0);}
  .nav-menu a{padding:0 16px;height:48px;display:flex;align-items:center;border-radius:14px;font-size:15.5px;border-bottom:1px solid var(--line);}
  .nav-menu a.active{background:var(--brand-soft);border-bottom-color:transparent;}
  .nav-toggle{display:flex;}
  body.nav-open .nav-toggle i:nth-child(1){transform:translateY(7px) rotate(45deg);}
  body.nav-open .nav-toggle i:nth-child(2){opacity:0;}
  body.nav-open .nav-toggle i:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .nav-actions .btn-primary{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-cta{display:none;}
  .mobile-cta-bar{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:85;
    padding:8px 18px calc(8px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
  }
  .mobile-cta-bar .btn{width:100%;height:48px;}
  .article-shell{padding:40px 0 56px;}
  .related,.faq-section{padding-top:56px;}
  .cta-band{padding:56px 0 80px;}
  .cta-card{padding:40px 28px;}
  .pager{grid-template-columns:1fr;}
  .pager .next{text-align:left;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .page-head{padding:38px 0 48px;}
  .article-head h1{margin:14px 0 16px;}
  .abstract-card{padding:22px 20px;margin-bottom:32px;}
  .card-grid{grid-template-columns:1fr;}
  .article-body{font-size:16.5px;line-height:1.9;}
  .article-body h2{margin-top:36px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:10px 12px;}
  .faq-q{padding:17px 18px;font-size:15px;}
  .faq-a .inner{padding:0 18px 18px;}
  .cta-card{padding:34px 22px;border-radius:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: category1 */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-soft:#FFEDE6;
  --accent:#12B3A6;
  --accent-soft:#E3F7F5;
  --amber:#FFC24B;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark:#191622;
  --dark-2:#2A1F2E;
  --grad:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-2:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:14px;
  --sh:0 8px 24px rgba(25,22,34,.06);
  --sh-hover:0 18px 46px rgba(255,92,57,.16);
  --container:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:20px}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.5px}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-hover)}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--brand);background:var(--brand-soft);
  padding:7px 16px;border-radius:999px;margin-bottom:18px;
}
.eyebrow.teal{color:#0E8C82;background:var(--accent-soft)}
h1{font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15}
h2{font-size:clamp(24px,3.4vw,38px);font-weight:700}
h3{font-size:21px;font-weight:600}
.lead{font-size:17px;color:var(--ink-2);margin-top:18px}
.muted{color:var(--ink-2)}
.small{font-size:14px;color:var(--ink-3)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;font-weight:600;font-size:15.5px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
  white-space:nowrap;
}
.btn i{font-size:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(255,92,57,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,92,57,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:#fff;color:var(--brand);border:1.5px solid rgba(255,92,57,.45)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost{color:var(--ink-2);padding:12px 4px;font-weight:600}
.btn-ghost:hover{color:var(--brand)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(25,22,34,.08)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .3s var(--ease)}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:14px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:19px;
  box-shadow:0 8px 18px rgba(255,92,57,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.6px}
.logo-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:2px}
.nav-menu{display:flex;align-items:center;gap:4px;background:#FFF9F5;border:1px solid var(--line);border-radius:999px;padding:5px}
.nav-menu a{
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  padding:9px 16px;border-radius:999px;transition:all .25s var(--ease);white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand);background:#fff}
.nav-menu a.active{background:var(--brand-soft);color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .25s var(--ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(340px,86vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform .32s var(--ease);
  padding:22px 22px 96px;overflow-y:auto;box-shadow:-20px 0 50px rgba(25,22,34,.16);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.drawer-close{width:40px;height:40px;border-radius:12px;background:var(--bg);font-size:18px;color:var(--ink-2)}
.drawer nav a{
  display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:600;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--brand)}
.drawer .btn{width:100%;margin-top:26px}
.backdrop{position:fixed;inset:0;background:rgba(25,22,34,.42);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s var(--ease)}
.backdrop.show{opacity:1;visibility:visible}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb span{color:#CFC8D0}

/* ---------- Page hero ---------- */
.page-hero{position:relative;padding:56px 0 72px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;top:-160px;right:-140px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,57,.18),transparent 68%);pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;bottom:-180px;left:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,179,166,.16),transparent 68%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.hero-copy h1 span.hl{
  background:linear-gradient(180deg,transparent 62%,rgba(255,194,75,.55) 62%);
  padding:0 2px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.badge-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.stat{
  display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:12px 22px;box-shadow:var(--sh);
}
.stat.teal{background:var(--accent-soft);border-color:rgba(18,179,166,.22)}
.stat.orange{background:var(--brand-soft);border-color:rgba(255,92,57,.22)}
.stat b{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat b small{font-size:12px;font-weight:700;margin-left:2px}
.stat em{font-style:normal;font-size:13px;color:var(--ink-2);line-height:1.4}
.hero-art{position:relative}
.hero-art .art-frame{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:0 26px 60px rgba(25,22,34,.14);
  aspect-ratio:4/3;background:var(--brand-soft);
}
.hero-art .art-frame img{width:100%;height:100%;object-fit:cover;border-radius:0}
.float-chip{
  position:absolute;background:#fff;border-radius:999px;padding:11px 18px;
  box-shadow:0 14px 34px rgba(25,22,34,.14);display:flex;align-items:center;gap:9px;
  font-size:13.5px;font-weight:600;
}
.float-chip i{color:var(--accent)}
.float-chip.top{top:22px;left:-22px}
.float-chip.bottom{bottom:26px;right:-16px}
.float-chip .dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}

/* ---------- Z rows ---------- */
.zblock{margin-top:64px}
.zblock:first-of-type{margin-top:0}
.zrow{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center}
.zrow.reverse .zmedia{order:2}
.zrow img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:0 18px 44px rgba(25,22,34,.1)}
.zcopy h3{font-size:clamp(21px,2.4vw,28px);font-weight:700;margin-bottom:16px}
.zcopy p{color:var(--ink-2);font-size:16.5px}
.znum{
  display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:14px;
  background:var(--grad);color:#fff;font-weight:800;font-size:16px;margin-bottom:18px;
  box-shadow:0 10px 22px rgba(255,92,57,.26);
}
.znum.teal{background:var(--grad-2);box-shadow:0 10px 22px rgba(18,179,166,.26)}
.point-list{margin-top:20px;display:grid;gap:10px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink-2)}
.point-list li i{color:var(--accent);margin-top:6px;font-size:13px}

/* ---------- Checklist cards ---------- */
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.check-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:26px 24px;
  position:relative;overflow:hidden;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.check-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);
  opacity:0;transition:opacity .25s var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(255,92,57,.3)}
.check-card:hover::before{opacity:1}
.check-card .ico{
  width:46px;height:46px;border-radius:15px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.check-card.teal .ico{background:var(--accent-soft);color:#0E8C82}
.check-card h3{font-size:18px;margin-bottom:10px}
.check-card p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ---------- Steps timeline ---------- */
.steps-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:44px 40px;box-shadow:var(--sh)}
.steps{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.steps::before{
  content:"";position:absolute;top:22px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(255,92,57,.35),rgba(18,179,166,.35));
}
.step{position:relative;text-align:center;padding-top:0}
.step .num{
  width:46px;height:46px;border-radius:50%;background:#fff;border:2px solid var(--brand);
  color:var(--brand);font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;
  margin:0 auto 16px;position:relative;z-index:2;
}
.step:nth-child(even) .num{border-color:var(--accent);color:#0E8C82}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14px;color:var(--ink-2);margin:0}

/* ---------- Dark evidence strip ---------- */
.dark-band{
  background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 100%);
  border-radius:var(--r-lg);padding:52px 44px;color:#fff;position:relative;overflow:hidden;
}
.dark-band::before{
  content:"";position:absolute;top:-90px;right:-60px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,57,.32),transparent 70%);
}
.dark-band h2{color:#fff;position:relative}
.dark-band .lead{color:#C9C2D4;position:relative}
.dark-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;position:relative}
.dark-stat{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:20px;padding:24px 22px;
}
.dark-stat b{display:block;font-size:clamp(28px,4vw,40px);font-weight:800;font-variant-numeric:tabular-nums;color:#fff}
.dark-stat b small{font-size:.45em;margin-left:3px;color:var(--amber)}
.dark-stat span{font-size:13.5px;color:#C9C2D4}

/* ---------- Scroll evidence bar ---------- */
.scroll-bar{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;scroll-snap-type:x mandatory}
.scroll-bar::-webkit-scrollbar{height:8px}
.scroll-bar::-webkit-scrollbar-thumb{background:#EADFD8;border-radius:999px}
.quote-card{
  flex:0 0 300px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px;
  scroll-snap-align:start;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.quote-card .stars{color:var(--amber);font-size:13px;margin-bottom:12px;letter-spacing:2px}
.quote-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px}
.quote-card .who{font-size:13px;font-weight:700;color:var(--ink)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.faq-item:hover{border-color:rgba(255,92,57,.3)}
.faq-item.open{border-color:var(--brand);box-shadow:var(--sh)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
  padding:22px 26px;font-size:16.5px;font-weight:600;text-align:left;
}
.faq-q i{color:var(--brand);transition:transform .3s var(--ease);flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a p{padding:0 26px 24px;font-size:15.5px;color:var(--ink-2);margin:0}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--grad);border-radius:var(--r-lg);padding:56px 44px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;box-shadow:0 24px 54px rgba(255,92,57,.28);
}
.cta-band::after{
  content:"";position:absolute;top:-70px;right:8%;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;position:relative}
.cta-band p{color:rgba(255,255,255,.9);margin-top:10px;position:relative;max-width:620px}
.cta-band .btn-outline{background:#fff;color:var(--brand);border-color:#fff;position:relative}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.9)}

/* ---------- Footer ---------- */
.site-footer{
  background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 100%);
  color:#C9C2D4;padding:68px 0 0;margin-top:88px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-brand .logo-mark{width:40px;height:40px}
.footer-brand b{color:#fff;font-size:17px;font-weight:800;display:block}
.footer-brand span span{font-size:11.5px;letter-spacing:2px;color:#8E879A}
.footer-col p{font-size:14.5px;line-height:1.8;color:#A79FB2}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:1px}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14.5px;color:#C9C2D4;transition:color .25s var(--ease)}
.footer-col ul a:hover{color:var(--brand)}
.footer-contact li{font-size:14px;color:#A79FB2}
.footer-contact b{display:block;color:#fff;font-size:13px;font-weight:600;margin-bottom:2px}
.qr-slot{
  margin-top:20px;width:112px;height:112px;border-radius:18px;border:1px dashed rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:12.5px;
  color:#8E879A;line-height:1.6;background:rgba(255,255,255,.04);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13.5px;color:#8E879A;
}

/* ---------- Floating CTA & mobile bar ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;background:var(--grad);color:#fff;
  padding:15px 26px;border-radius:999px;font-weight:700;font-size:15px;
  box-shadow:0 16px 36px rgba(255,92,57,.36);display:inline-flex;align-items:center;gap:9px;
  transition:transform .25s var(--ease),opacity .35s var(--ease);
}
.float-cta:hover{transform:scale(1.04)}
.float-cta.hide{opacity:0;pointer-events:none;transform:translateY(14px)}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
}
.mobile-bar .btn{width:100%;padding:13px 20px}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-menu a{padding:8px 12px;font-size:14px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-art .art-frame{aspect-ratio:16/10}
  .float-chip.top{left:8px;top:12px}
  .float-chip.bottom{right:8px;bottom:14px}
  .zrow{grid-template-columns:1fr;gap:32px}
  .zrow.reverse .zmedia{order:0}
  .check-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps::before{display:none}
  .dark-stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .page-hero{padding:34px 0 48px}
  .hero-cta .btn{flex:1 1 100%}
  .badge-row{gap:10px}
  .stat{flex:1 1 100%}
  .check-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .steps-wrap{padding:30px 22px}
  .dark-band{padding:36px 24px}
  .dark-stats{grid-template-columns:1fr}
  .cta-band{padding:38px 24px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:52px;margin-top:64px}
  .float-cta{display:none}
  .mobile-bar{display:block}
  body{padding-bottom:76px}
  .faq-q{padding:18px 20px;font-size:15.5px}
  .faq-a p{padding:0 20px 20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-soft:#FFEDE6;
  --accent:#12B3A6;
  --accent-hover:#0E9A8F;
  --accent-soft:#E3F7F5;
  --amber:#FFC24B;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark:#191622;
  --dark-2:#2A1F2E;
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-img:20px;
  --radius-input:14px;
  --shadow:0 8px 24px rgba(25,22,34,.06);
  --shadow-hover:0 18px 46px rgba(255,92,57,.16);
  --grad-brand:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-accent:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --grad-dark:linear-gradient(160deg,#191622 0%,#2A1F2E 100%);
  --container:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:.5px;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit}
::selection{background:var(--brand-soft);color:var(--brand-hover)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.section-title{font-size:clamp(24px,3.4vw,38px);font-weight:700;margin-bottom:14px}
.section-lead{max-width:760px;color:var(--ink-2);font-size:16.5px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand-hover);background:var(--brand-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow.is-accent{color:var(--accent-hover);background:var(--accent-soft)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 20px rgba(255,92,57,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,92,57,.32)}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(255,92,57,.38)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-2px)}
.btn-accent{background:var(--grad-accent);color:#fff;box-shadow:0 8px 20px rgba(18,179,166,.26)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,179,166,.3)}
.btn-text{color:var(--brand);padding:13px 4px;font-weight:600}
.btn-text:hover{color:var(--brand-hover);text-decoration:underline;text-underline-offset:4px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{color:transparent;position:relative;pointer-events:none}
.btn.is-loading::after{
  content:"";position:absolute;inset:0;margin:auto;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(255,255,255,.55);border-top-color:#fff;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),height .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 30px rgba(25,22,34,.08)}
.nav-wrap{
  display:flex;align-items:center;gap:22px;
  height:72px;transition:height .25s var(--ease);
}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;letter-spacing:0;
  box-shadow:0 6px 16px rgba(255,92,57,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:800;letter-spacing:.5px}
.logo-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:2px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:12px}
.nav-menu a{
  padding:8px 14px;border-radius:999px;font-size:15px;color:var(--ink-2);
  transition:background-color .25s var(--ease),color .25s var(--ease);
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand-hover)}
.nav-menu a.active{background:var(--brand-soft);color:var(--brand-hover);font-weight:600}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle i{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s var(--ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 页面头区 ---------- */
.page-head{position:relative;overflow:hidden;padding:52px 0 84px;background:linear-gradient(180deg,#FFF9F5 0%,#FFEDE6 100%)}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.14;
}
.page-head::after{
  content:"";position:absolute;width:460px;height:460px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,194,75,.28),rgba(255,194,75,0) 68%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2}
.breadcrumb{font-size:13px;color:var(--ink-3);margin-bottom:26px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#CFC7CE}
.breadcrumb .current{color:var(--brand-hover);font-weight:600}
.head-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.head-copy h1{font-size:clamp(28px,4.4vw,46px);font-weight:800;line-height:1.16;margin-bottom:20px}
.head-copy h1 em{font-style:normal;background:linear-gradient(180deg,transparent 62%,rgba(255,194,75,.55) 62%);padding:0 2px}
.head-copy .lead{font-size:17px;color:var(--ink-2);margin-bottom:14px}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.head-note{font-size:13.5px;color:var(--ink-3);margin-top:18px}
.head-visual{position:relative}
.head-visual .frame{
  border-radius:var(--radius-xl);overflow:hidden;background:#fff;
  box-shadow:0 24px 60px rgba(25,22,34,.14);
  border:1px solid rgba(255,255,255,.7);
}
.head-visual img{width:100%;aspect-ratio:4/3;object-fit:cover}
.float-badge{
  position:absolute;background:#fff;border-radius:18px;padding:12px 18px;
  box-shadow:0 14px 34px rgba(25,22,34,.14);border:1px solid var(--line);
}
.float-badge b{display:block;font-size:20px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-hover);line-height:1.1}
.float-badge span{font-size:12.5px;color:var(--ink-3)}
.float-badge.fb-a{left:-18px;bottom:34px}
.float-badge.fb-b{right:-12px;top:28px}
.float-badge.fb-b b{color:var(--accent-hover)}

/* ---------- 数据徽章条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:56px}
.stat{
  background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);
  border-radius:var(--radius-lg);padding:20px 22px;box-shadow:var(--shadow);
}
.stat b{display:block;font-size:clamp(26px,3.6vw,40px);font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-hover);line-height:1.1}
.stat b small{font-size:.5em;font-weight:700;margin-left:2px;color:var(--ink-3)}
.stat span{display:block;font-size:13.5px;color:var(--ink-2);margin-top:6px}
.stat.is-accent b{color:var(--accent-hover)}

/* ---------- 时间线 ---------- */
.flow-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.timeline{position:relative;padding-left:0;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:31px;top:16px;bottom:16px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,#FF5C39 0%,#FF9A3D 38%,#12B3A6 100%);
  opacity:.35;
}
.tl-item{display:grid;grid-template-columns:64px 1fr;gap:26px;position:relative;padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-badge{
  width:64px;height:64px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-hover);
  box-shadow:0 8px 22px rgba(25,22,34,.08);position:relative;z-index:2;
  transition:.25s var(--ease);
}
.tl-item:hover .tl-badge{background:var(--grad-brand);color:#fff;border-color:transparent;transform:translateY(-3px)}
.tl-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 28px;transition:.25s var(--ease);position:relative;overflow:hidden;
}
.tl-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:var(--grad-brand);opacity:0;transition:opacity .25s var(--ease);
}
.tl-card:hover{background:#fff;box-shadow:var(--shadow-hover);border-color:rgba(255,92,57,.3);transform:translateY(-4px)}
.tl-card:hover::before{opacity:1}
.tl-card h3{font-size:20px;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px}
.tag{
  display:inline-block;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent-hover);
}
.tag.is-brand{background:var(--brand-soft);color:var(--brand-hover)}
.tag.is-amber{background:#FFF4DC;color:#B47800}

/* ---------- 功能卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.f-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow);transition:.25s var(--ease);position:relative;overflow:hidden;
}
.f-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--grad-accent);
  opacity:0;transition:opacity .25s var(--ease);
}
.f-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(255,92,57,.28)}
.f-card:hover::before{opacity:1}
.f-icon{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-hover);font-size:20px;font-weight:800;margin-bottom:16px;
}
.f-card:nth-child(3n+2) .f-icon{background:var(--accent-soft);color:var(--accent-hover)}
.f-card:nth-child(3n+3) .f-icon{background:#FFF4DC;color:#B47800}
.f-card h3{font-size:19px;margin-bottom:10px}
.f-card p{font-size:15px;color:var(--ink-2);margin:0}

/* ---------- 对照卡 ---------- */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare{
  border-radius:var(--radius-xl);padding:32px;border:1px solid var(--line);
}
.compare.is-yes{background:#fff;box-shadow:var(--shadow)}
.compare.is-no{background:#FBF7F5}
.compare h3{font-size:20px;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.compare .dot{
  width:30px;height:30px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;
}
.compare.is-yes .dot{background:var(--accent-soft);color:var(--accent-hover)}
.compare.is-no .dot{background:#EFE9E6;color:var(--ink-3)}
.compare li{
  position:relative;padding-left:24px;margin-bottom:14px;font-size:15.5px;color:var(--ink-2);
}
.compare li:last-child{margin-bottom:0}
.compare li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--grad-brand);
}
.compare.is-no li::before{background:#CFC7CE}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{border-radius:var(--radius-img);aspect-ratio:16/10;object-fit:cover;box-shadow:0 18px 44px rgba(25,22,34,.12)}
.split h2{font-size:clamp(22px,3vw,32px);margin-bottom:16px}
.split p{color:var(--ink-2)}
.check-list li{position:relative;padding-left:28px;margin-bottom:12px;color:var(--ink-2);font-size:15.5px}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:6px;
  background:var(--accent-soft);
  box-shadow:inset 0 0 0 4px #fff,0 0 0 1px var(--accent);
}

/* ---------- FAQ ---------- */
.faq-section{background:#fff;border-top:1px solid var(--line)}
.faq-list{max-width:860px}
.faq-item{
  background:var(--bg);border:1px solid var(--line);border-radius:18px;
  margin-bottom:12px;overflow:hidden;transition:.25s var(--ease);
}
.faq-item[open]{border-color:rgba(255,92,57,.55);background:#fff;box-shadow:var(--shadow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;
  display:flex;align-items:center;gap:16px;font-size:16.5px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";margin-left:auto;width:10px;height:10px;flex:0 0 auto;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .25s var(--ease);border-radius:1px;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-body{padding:0 24px 22px;color:var(--ink-2);font-size:15.5px}
.faq-q-index{
  width:26px;height:26px;border-radius:9px;background:var(--brand-soft);color:var(--brand-hover);
  font-size:13px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}

/* ---------- 证据条 ---------- */
.proof-strip{
  display:flex;gap:18px;overflow-x:auto;padding:6px 2px 16px;scroll-snap-type:x mandatory;
}
.proof-strip::-webkit-scrollbar{height:6px}
.proof-strip::-webkit-scrollbar-thumb{background:#EADFD9;border-radius:99px}
.proof-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow);
}
.proof-card .stars{color:var(--amber);letter-spacing:3px;font-size:15px;margin-bottom:12px}
.proof-card p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.proof-card .who{font-size:13px;color:var(--ink-3)}

/* ---------- 深色 CTA ---------- */
.cta-band{background:var(--grad-dark);color:#fff;padding:72px 0;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;bottom:-240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,92,57,.34),rgba(255,92,57,0) 70%);
}
.cta-band .container{position:relative;z-index:2;display:flex;align-items:center;gap:32px;flex-wrap:wrap;justify-content:space-between}
.cta-band h2{font-size:clamp(22px,3.2vw,34px);margin-bottom:10px}
.cta-band p{color:#C9C2D4;margin:0;max-width:620px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- 浮动 CTA / 移动底栏 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:70;
  background:var(--grad-brand);color:#fff;font-weight:600;font-size:15px;
  padding:14px 24px;border-radius:999px;box-shadow:0 14px 34px rgba(255,92,57,.36);
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.float-cta:hover{transform:scale(1.04)}
.float-cta.hide{opacity:0;pointer-events:none;transform:translateY(14px)}
.mobile-bar{display:none}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad-dark);color:#C9C2D4;padding:68px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .logo-mark{width:36px;height:36px;font-size:18px}
.footer-brand b{color:#fff;font-size:17px;font-weight:800;letter-spacing:.5px;display:block;line-height:1.2}
.footer-brand span span{font-size:11.5px;color:#9F97AC;letter-spacing:2px}
.footer-col p{font-size:14.5px;line-height:1.8;color:#B4ACC2;max-width:340px}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;font-weight:700}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:#B4ACC2}
.footer-col ul a:hover{color:#fff}
.footer-contact li{font-size:14px;color:#B4ACC2;margin-bottom:12px}
.footer-contact b{display:block;color:#fff;font-size:13px;font-weight:600;margin-bottom:2px}
.qr-slot{
  margin-top:18px;width:104px;height:104px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.28);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:#9F97AC;line-height:1.5;
}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:#9F97AC;
}

/* ---------- 空态 / 骨架 ---------- */
.empty-state{
  grid-column:1/-1;text-align:center;padding:48px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-lg);background:#fff;color:var(--ink-3);
}
.skeleton{
  border-radius:var(--radius-lg);background:linear-gradient(90deg,#F6F0EC 25%,#FBF7F4 37%,#F6F0EC 63%);
  background-size:400% 100%;animation:shimmer 1.4s ease infinite;min-height:120px;
}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .head-grid{gap:40px}
  .float-badge.fb-a{left:0}
  .float-badge.fb-b{right:0}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section-sm{padding:44px 0}
  .nav-menu{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,86vw);
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:20px 18px;margin:0;border-left:1px solid var(--line);
    box-shadow:-18px 0 44px rgba(25,22,34,.12);
    transform:translateX(102%);transition:transform .3s var(--ease);
    overflow-y:auto;z-index:90;
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-menu a{padding:14px 16px;border-radius:14px;font-size:15.5px;border-bottom:1px solid var(--line)}
  .nav-menu a:last-child{border-bottom:0}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .head-grid{grid-template-columns:1fr;gap:36px}
  .head-visual{order:-1}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:14px;margin-top:40px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .compare-wrap{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .float-cta{display:none}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:75;
    padding:8px 16px calc(8px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.95);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
  }
  .mobile-bar .btn{width:100%}
  .site-footer{padding-bottom:64px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-badge{width:48px;height:48px;font-size:15px}
  .timeline::before{left:23px}
  .tl-card{padding:22px 20px}
  .stat-strip{grid-template-columns:1fr 1fr}
  .proof-card{flex:0 0 78vw}
  .head-copy .lead{font-size:16px}
}
@media (max-width:575px){
  body{font-size:16px}
  .section{padding:52px 0}
  .logo-text span{display:none}
  .logo-text b{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .head-actions .btn{width:100%}
  .stat b{font-size:28px}
  .float-badge{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-soft:#FFEDE6;
  --accent:#12B3A6;
  --accent-hover:#0E9A8F;
  --accent-soft:#E3F7F5;
  --amber:#FFC24B;
  --amber-soft:#FFF4DC;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark-1:#191622;
  --dark-2:#2A1F2E;
  --danger:#E5484D;
  --grad-brand:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-accent:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --r-lg:28px;
  --r-md:24px;
  --r-sm:20px;
  --r-xs:14px;
  --shadow-1:0 8px 24px rgba(25,22,34,.06);
  --shadow-2:0 18px 46px rgba(255,92,57,.16);
  --shadow-3:0 24px 60px rgba(25,22,34,.14);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:.5px}
h1{font-size:clamp(30px,4.6vw,50px);line-height:1.15}
h2{font-size:clamp(24px,3.2vw,36px);font-weight:700}
h3{font-size:20px;font-weight:600}
h4{font-size:16px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
strong{font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-soft);color:var(--brand-hover)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:linear-gradient(150deg,var(--dark-1) 0%,var(--dark-2) 100%);color:#fff}
.section--dark h2,.section--dark h3{color:#fff}
.section--dark p{color:#C9C2D4}
.section--paper{background:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;font-size:15.5px;font-weight:600;
  letter-spacing:.5px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(255,92,57,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,92,57,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(255,92,57,.26)}
.btn-secondary{background:#fff;color:var(--brand);border:1.5px solid rgba(255,92,57,.35)}
.btn-secondary:hover{transform:translateY(-2px);border-color:var(--brand);background:var(--brand-soft)}
.btn-secondary:active{transform:translateY(1px)}
.btn-quiet{background:var(--accent-soft);color:var(--accent-hover);font-weight:600}
.btn-quiet:hover{background:#D2F1EE;transform:translateY(-2px)}
.btn-link{color:var(--brand);font-weight:600;padding:4px 0;border-bottom:1.5px solid rgba(255,92,57,.3)}
.btn-link:hover{color:var(--brand-hover);border-bottom-color:var(--brand-hover)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none}
.btn-loading{position:relative;color:transparent!important;pointer-events:none}
.btn-loading::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(100deg,rgba(255,255,255,.15) 25%,rgba(255,255,255,.55) 50%,rgba(255,255,255,.15) 75%);
  background-size:220% 100%;animation:shimmer 1.2s linear infinite;
}
@keyframes shimmer{0%{background-position:120% 0}100%{background-position:-120% 0}}

/* ---------- 徽章 / 胶囊 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;letter-spacing:.6px;
}
.pill-brand{background:var(--brand-soft);color:var(--brand-hover)}
.pill-accent{background:var(--accent-soft);color:var(--accent-hover)}
.pill-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.pill-dot{width:7px;height:7px;border-radius:50%;background:currentColor;display:inline-block}

.hero-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;
  background:rgba(255,255,255,.85);border:1px solid rgba(255,92,57,.22);
  box-shadow:0 10px 26px rgba(255,92,57,.12);
  font-size:14px;font-weight:700;color:var(--brand-hover);letter-spacing:1px;
}
.hero-chip .chip-num{
  font-variant-numeric:tabular-nums;font-size:20px;font-weight:800;color:var(--brand);
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 30px rgba(25,22,34,.09)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;transition:height .25s var(--ease)}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:800;
  box-shadow:0 8px 18px rgba(255,92,57,.28);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:16px;letter-spacing:1px}
.logo-text span{font-size:11px;color:var(--ink-3);letter-spacing:2.5px}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--ink-2);
  transition:background .22s var(--ease),color .22s var(--ease);
}
.nav-menu a:hover{background:var(--brand-soft);color:var(--brand-hover)}
.nav-menu a.active{background:var(--brand-soft);color:var(--brand-hover);font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-actions .btn{padding:11px 22px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-scrim{
  position:fixed;inset:0;background:rgba(25,22,34,.45);opacity:0;visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:70;
}
.nav-scrim.open{opacity:1;visibility:visible}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:#CFC7D2}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;overflow:hidden;
  padding:72px 0 80px;
  background:
    radial-gradient(620px 320px at 88% 6%,rgba(18,179,166,.14),transparent 62%),
    radial-gradient(560px 300px at 4% 88%,rgba(255,92,57,.16),transparent 66%),
    var(--bg);
}
.page-head-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.page-head-copy h1{margin:22px 0 20px;max-width:16em}
.page-head-copy h1 em{font-style:normal;color:var(--brand);position:relative}
.page-head-copy h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:.28em;
  background:rgba(255,194,75,.45);border-radius:6px;z-index:-1;
}
.lead{font-size:17px;color:var(--ink-2);max-width:44em}
.page-head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.page-head-visual{position:relative}
.page-head-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--shadow-3);border:6px solid #fff;
}
.float-badge{
  position:absolute;left:-18px;bottom:26px;
  background:#fff;border-radius:20px;padding:14px 20px;
  box-shadow:var(--shadow-2);border-top:3px solid transparent;
  border-image:var(--grad-brand) 1;
}
.float-badge b{display:block;font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand);line-height:1.1}
.float-badge span{font-size:12.5px;color:var(--ink-3);letter-spacing:1px}
.float-badge--accent{left:auto;right:-14px;top:22px;bottom:auto;box-shadow:0 16px 40px rgba(18,179,166,.2)}
.float-badge--accent b{color:var(--accent)}

/* ---------- 板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16.5px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 对照矩阵 ---------- */
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.matrix-card{
  background:var(--card);border-radius:var(--r-lg);padding:34px 32px;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  position:relative;overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.matrix-card::before{content:"";position:absolute;left:0;top:0;height:4px;width:100%;transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,92,57,.3)}
.matrix-card:hover::before{transform:scaleX(1)}
.matrix-card--keep::before{background:var(--grad-accent)}
.matrix-card--fix::before{background:var(--grad-brand)}
.matrix-card header{margin-bottom:24px}
.matrix-card h3{margin-top:12px}
.matrix-tag{font-size:12.5px;font-weight:700;letter-spacing:2px;padding:6px 14px;border-radius:999px;display:inline-block}
.matrix-card--keep .matrix-tag{background:var(--accent-soft);color:var(--accent-hover)}
.matrix-card--fix .matrix-tag{background:var(--brand-soft);color:var(--brand-hover)}
.matrix-list li{display:flex;gap:14px;padding:16px 0;border-top:1px dashed var(--line)}
.matrix-list li:first-child{border-top:0;padding-top:0}
.matrix-list li:last-child{padding-bottom:0}
.mk{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:800;margin-top:4px;
}
.mk-ok{background:var(--accent-soft);color:var(--accent-hover)}
.mk-warn{background:var(--brand-soft);color:var(--brand-hover)}
.matrix-list b{display:block;font-size:16px;margin-bottom:3px}
.matrix-list p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---------- 要点卡 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:32px}
.point-card{
  background:var(--card);border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,92,57,.3)}
.point-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.point-body{padding:24px 26px 28px}
.point-body h3{margin:12px 0 10px}
.point-body p{font-size:15px;color:var(--ink-2);line-height:1.8}
.point-body .btn-link{margin-top:8px;display:inline-block;font-size:14.5px}

/* ---------- 自查三步 ---------- */
.check-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
.check-item{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);padding:28px 26px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.check-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.check-num{
  width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-variant-numeric:tabular-nums;
  margin-bottom:18px;box-shadow:0 10px 22px rgba(255,92,57,.35);
}
.check-item h3{margin-bottom:10px;font-size:18px}
.check-item p{font-size:14.5px;line-height:1.8;margin:0}

/* ---------- 强调条 ---------- */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--amber-soft);border:1px solid rgba(255,194,75,.55);
  border-radius:var(--r-xs);padding:20px 24px;margin-top:32px;
}
.notice i{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--amber);
  color:#191622;display:grid;place-items:center;font-size:13px;font-weight:800;font-style:normal;margin-top:4px;
}
.notice p{margin:0;font-size:15px;color:#6B5418;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xs);
  overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item[open]{border-color:rgba(255,92,57,.55);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";margin-left:auto;flex-shrink:0;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .28s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item summary:hover{color:var(--brand-hover)}
.faq-body{padding:0 24px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.faq-body p{margin:0}

/* ---------- 底部 CTA ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-lg);
  padding:64px 56px;color:#fff;
  display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;
  box-shadow:0 30px 70px rgba(255,92,57,.28);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.28),transparent 68%);
}
.cta-card h2{color:#fff;margin-bottom:16px}
.cta-card p{color:rgba(255,255,255,.92);margin-bottom:0;font-size:16.5px}
.cta-actions{display:flex;flex-direction:column;gap:14px;position:relative;z-index:2}
.btn-white{background:#fff;color:var(--brand-hover);font-weight:700;box-shadow:0 14px 30px rgba(25,22,34,.16)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 20px 40px rgba(25,22,34,.22)}
.btn-outline-white{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn-outline-white:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(160deg,var(--dark-1) 0%,var(--dark-2) 100%);color:#C9C2D4;padding:72px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand b{color:#fff;font-size:16px;letter-spacing:1px;display:block;line-height:1.2}
.footer-brand span span{font-size:11px;letter-spacing:2.5px;color:#8E879A}
.footer-col p{font-size:14.5px;line-height:1.85;color:#A79FB3}
.footer-col h4{color:#fff;margin-bottom:18px;font-size:16px}
.footer-col ul li{margin-bottom:12px;font-size:14.5px}
.footer-col ul li a{color:#C9C2D4;transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-col ul li a:hover{color:var(--brand);padding-left:4px}
.footer-contact li{font-size:14.5px;color:#C9C2D4}
.footer-contact b{color:#fff;font-weight:600;margin-right:8px}
.qr-slot{
  margin-top:16px;width:112px;height:112px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.28);display:grid;place-items:center;
  font-size:12.5px;color:#8E879A;text-align:center;line-height:1.6;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8E879A;
}

/* ---------- 浮动 CTA / 移动底栏 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:14.5px;
  box-shadow:0 16px 36px rgba(255,92,57,.38);
  transition:transform .25s var(--ease),opacity .3s var(--ease),box-shadow .25s var(--ease);
}
.float-cta:hover{transform:scale(1.04);box-shadow:0 20px 44px rgba(255,92,57,.45)}
.float-cta.hide{opacity:0;visibility:hidden;transform:translateY(12px)}
.mobile-bar{display:none}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-head-grid{gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .page-head{padding:48px 0 56px}
  .page-head-grid{grid-template-columns:1fr;gap:36px}
  .page-head-visual{max-width:560px}
  .float-badge{left:12px;bottom:14px}
  .float-badge--accent{right:12px;top:14px;left:auto;bottom:auto}
  .matrix{grid-template-columns:1fr}
  .point-grid{grid-template-columns:repeat(2,1fr)}
  .check-list{grid-template-columns:1fr;gap:16px}
  .cta-card{grid-template-columns:1fr;padding:48px 34px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 20px 36px;margin:0;z-index:75;overflow-y:auto;
    box-shadow:-24px 0 60px rgba(25,22,34,.16);
    transform:translateX(102%);transition:transform .32s var(--ease);
  }
  .nav-menu.open{transform:translateX(0)}
  .nav-menu a{padding:15px 16px;font-size:16px;border-radius:14px;border-bottom:1px solid var(--line)}
  .nav-menu a:last-child{border-bottom:0}
  .nav-actions .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .point-grid{grid-template-columns:1fr}
  .page-head-copy h1{margin:18px 0 16px}
  .lead{font-size:16px}
  .page-head-actions{gap:12px}
  .page-head-actions .btn{flex:1 1 auto;justify-content:center}
  .cta-card{padding:40px 24px;border-radius:var(--r-md)}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:56px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:6px}
  .float-cta{right:16px;bottom:78px;padding:12px 20px;font-size:14px}
  .mobile-bar{
    display:block;position:fixed;left:0;right:0;bottom:0;z-index:75;
    padding:10px 18px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
    border-top:1px solid var(--line);
  }
  .mobile-bar .btn{width:100%;padding:14px 20px}
}
@media (max-width:575px){
  body{font-size:16px}
  .logo-text span{letter-spacing:1.6px}
  .matrix-card{padding:26px 22px;border-radius:var(--r-md)}
  .point-body{padding:20px 22px 24px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-body{padding:0 18px 18px}
  .float-badge{padding:10px 14px}
  .float-badge b{font-size:22px}
}

/* roulang page: category4 */
:root{
  --brand:#FF5C39;
  --brand-hover:#E84A28;
  --brand-soft:#FFEDE6;
  --accent:#12B3A6;
  --accent-soft:#E3F7F5;
  --amber:#FFC24B;
  --ink:#191622;
  --ink-2:#5C5566;
  --ink-3:#8E879A;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --line:#F1ECE9;
  --dark-1:#191622;
  --dark-2:#2A1F2E;
  --grad-main:linear-gradient(135deg,#FF5C39 0%,#FF9A3D 100%);
  --grad-accent:linear-gradient(135deg,#12B3A6 0%,#2FD6C0 100%);
  --shadow-1:0 8px 24px rgba(25,22,34,.06);
  --shadow-2:0 18px 46px rgba(255,92,57,.16);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:14px;
  --r-pill:999px;
  --container:1200px;
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--brand);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:.5px;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 16px;border-radius:var(--r-pill);margin-bottom:18px;
}
.eyebrow i{font-size:12px;}
h1{font-size:clamp(30px,5vw,54px);font-weight:800;line-height:1.15;}
h2{font-size:clamp(24px,3.4vw,38px);font-weight:700;}
h3{font-size:21px;font-weight:600;}
.section-sub{color:var(--ink-2);font-size:17px;margin-top:16px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 30px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.5px;
  transition:all .25s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--grad-main);color:#fff;box-shadow:0 10px 26px rgba(255,92,57,.28);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border:1.5px solid rgba(255,92,57,.45);}
.btn-ghost:hover{color:var(--brand-hover);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.28);}
.btn-dark:hover{color:#fff;background:rgba(255,255,255,.2);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:baseline;gap:4px;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-hover);}
.badge-accent{background:var(--accent-soft);color:#0B7C72;}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-2);}
.tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand-hover);
}
.tag-accent{background:var(--accent-soft);color:#0B7C72;}
.tag-amber{background:#FFF6E2;color:#9A6B00;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.scrolled{box-shadow:0 8px 26px rgba(25,22,34,.09);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;transition:height .3s var(--ease);}
.site-header.scrolled .nav-wrap{height:64px;}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:13px;
  background:var(--grad-main);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 6px 16px rgba(255,92,57,.3);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.6px;}
.logo-text span{font-size:11px;color:var(--ink-3);letter-spacing:2px;}
.nav-menu{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;padding:5px;border-radius:var(--r-pill);
  background:#FFF9F5;border:1px solid var(--line);
}
.nav-menu a{
  padding:8px 15px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand-hover);background:var(--brand-soft);}
.nav-menu a.active{background:var(--brand-soft);color:var(--brand-hover);font-weight:700;}
.nav-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-actions .btn{padding:10px 22px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle i{display:block;width:19px;height:2px;border-radius:2px;background:var(--ink);transition:transform .3s var(--ease),opacity .3s var(--ease);}
.nav-toggle[aria-expanded="true"] i:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] i:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] i:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:64px 0 76px;
  background:
    radial-gradient(760px 380px at 88% -10%,rgba(255,92,57,.14),transparent 62%),
    radial-gradient(620px 320px at 4% 108%,rgba(18,179,166,.13),transparent 64%),
    var(--bg);
}
.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);margin-bottom:24px;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#CFC7CE;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center;}
.hero-copy h1 .hl{
  background:linear-gradient(180deg,transparent 62%,rgba(255,194,75,.55) 62%);
  padding:0 2px;
}
.hero-lead{font-size:17.5px;color:var(--ink-2);margin-top:22px;max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px;}
.stat-badge{
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:11px 22px 11px 18px;box-shadow:var(--shadow-1);
}
.stat-badge .v{font-size:clamp(22px,3vw,30px);font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;}
.stat-badge .v em{font-style:normal;font-size:.5em;font-weight:700;margin-left:3px;color:var(--ink-2);}
.stat-badge .k{font-size:13px;color:var(--ink-2);line-height:1.35;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3.2;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:0 24px 60px rgba(25,22,34,.14);
}
.float-badge{
  position:absolute;background:#fff;border-radius:18px;padding:12px 18px;
  box-shadow:0 16px 36px rgba(25,22,34,.14);display:flex;align-items:center;gap:10px;
}
.float-badge i{font-size:16px;}
.float-badge b{font-size:15px;font-weight:700;display:block;line-height:1.2;}
.float-badge small{font-size:12px;color:var(--ink-3);}
.fb-1{top:22px;left:-22px;}
.fb-1 i{color:var(--brand);}
.fb-2{bottom:26px;right:-18px;}
.fb-2 i{color:var(--accent);}

/* ---------- 问题分区图卡网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.topic-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.topic-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad-main);opacity:0;transition:opacity .25s var(--ease);z-index:2;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,92,57,.3);}
.topic-card:hover::before{opacity:1;}
.card-media{position:relative;aspect-ratio:16/10;background:linear-gradient(135deg,#FFEDE6,#E3F7F5);}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.card-media .tag{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--brand-hover);box-shadow:0 6px 16px rgba(25,22,34,.1);}
.card-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1;}
.card-body h3{margin-bottom:10px;font-size:19px;}
.card-body p{font-size:14.8px;color:var(--ink-2);line-height:1.75;}
.card-link{
  margin-top:auto;padding-top:18px;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:8px;
}
.card-link i{font-size:12px;transition:transform .25s var(--ease);}
.topic-card:hover .card-link i{transform:translateX(4px);}

/* ---------- 准备清单对照卡 ---------- */
.prepare-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.compare-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 30px 32px;position:relative;overflow:hidden;
}
.compare-card::after{
  content:"";position:absolute;top:0;left:0;width:100%;height:4px;
}
.compare-card.need::after{background:var(--grad-main);}
.compare-card.skip::after{background:var(--grad-accent);}
.compare-head{display:flex;align-items:center;gap:12px;margin-bottom:22px;}
.compare-head .ico{
  width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:17px;color:#fff;flex-shrink:0;
}
.compare-card.need .ico{background:var(--grad-main);}
.compare-card.skip .ico{background:var(--grad-accent);}
.compare-head h3{font-size:19px;}
.compare-head small{display:block;font-size:13px;color:var(--ink-3);font-weight:400;letter-spacing:0;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--line);font-size:15.3px;color:var(--ink-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{margin-top:6px;font-size:13px;flex-shrink:0;}
.compare-card.need .check-list i{color:var(--brand);}
.compare-card.skip .check-list i{color:var(--accent);}
.check-list b{color:var(--ink);font-weight:600;}

/* ---------- 处理流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-1);border-color:rgba(255,92,57,.3);}
.step-num{
  width:46px;height:46px;border-radius:50%;
  background:var(--grad-main);color:#fff;font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  font-variant-numeric:tabular-nums;box-shadow:0 10px 22px rgba(255,92,57,.26);
}
.step-card h3{font-size:17.5px;margin-bottom:8px;}
.step-card p{font-size:14.6px;color:var(--ink-2);line-height:1.75;}

/* ---------- 横向滚动证据条 ---------- */
.strip-section{background:var(--dark-1);background-image:linear-gradient(135deg,#191622 0%,#2A1F2E 100%);color:#fff;}
.strip-section h2{color:#fff;}
.strip-section .section-sub{color:#C9C2D4;}
.proof-strip{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.proof-strip::-webkit-scrollbar{height:8px;}
.proof-strip::-webkit-scrollbar-track{background:rgba(255,255,255,.08);border-radius:99px;}
.proof-strip::-webkit-scrollbar-thumb{background:rgba(255,92,57,.7);border-radius:99px;}
.proof-card{
  flex:0 0 330px;scroll-snap-align:start;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);padding:26px 24px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.proof-card:hover{transform:translateY(-4px);border-color:rgba(255,92,57,.55);}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px;margin-bottom:14px;}
.proof-card p{font-size:15px;line-height:1.8;color:#EDE9F2;margin-bottom:18px;}
.proof-meta{display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:#A79FB4;border-top:1px solid rgba(255,255,255,.12);padding-top:14px;}
.proof-meta b{color:#fff;font-weight:600;font-size:13.5px;}
.strip-hint{display:flex;align-items:center;gap:8px;font-size:13px;color:#A79FB4;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(255,92,57,.35);}
.faq-item.open{border-color:var(--brand);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:22px 26px;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .q-mark{
  flex-shrink:0;width:30px;height:30px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand-hover);font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.faq-q .arrow{margin-left:auto;flex-shrink:0;color:var(--ink-3);font-size:14px;transition:transform .3s var(--ease),color .3s var(--ease);}
.faq-item.open .faq-q .arrow{transform:rotate(180deg);color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);}
.faq-a-inner{padding:0 26px 24px 72px;font-size:15.4px;color:var(--ink-2);line-height:1.85;}
.faq-item.open .faq-a{max-height:460px;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);padding:62px 56px;
  background:var(--grad-main);color:#fff;
  box-shadow:0 26px 60px rgba(255,92,57,.28);
}
.cta-band::before,.cta-band::after{
  content:"";position:absolute;border-radius:50%;background:rgba(255,255,255,.14);
}
.cta-band::before{width:280px;height:280px;top:-120px;right:-60px;}
.cta-band::after{width:190px;height:190px;bottom:-100px;left:8%;background:rgba(255,255,255,.1);}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(23px,3vw,32px);}
.cta-band p{color:rgba(255,255,255,.92);margin-top:14px;font-size:16px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.btn-white{background:#fff;color:var(--brand-hover);}
.btn-white:hover{color:var(--brand-hover);transform:translateY(-2px);box-shadow:0 16px 34px rgba(0,0,0,.16);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:linear-gradient(160deg,#191622 0%,#2A1F2E 100%);
  color:#C9C2D4;padding:72px 0 0;margin-top:88px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .logo-mark{width:36px;height:36px;border-radius:12px;font-size:17px;}
.footer-brand span{display:flex;flex-direction:column;line-height:1.2;}
.footer-brand b{color:#fff;font-size:16px;font-weight:800;letter-spacing:.6px;}
.footer-brand span span{font-size:11px;color:#8E879A;letter-spacing:2px;}
.footer-col p{font-size:14.4px;line-height:1.85;color:#A79FB4;max-width:340px;}
.footer-col h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:20px;letter-spacing:.6px;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul a{font-size:14.4px;color:#C9C2D4;}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{font-size:14.4px;display:flex;gap:10px;flex-wrap:wrap;}
.footer-contact li b{color:#fff;font-weight:600;min-width:72px;}
.qr-slot{
  margin-top:20px;width:124px;height:124px;border-radius:18px;
  border:1px dashed rgba(255,255,255,.24);background:rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:#8E879A;line-height:1.6;padding:10px;
}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13.4px;color:#8E879A;
}

/* ---------- 浮动 CTA 与移动底栏 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:80;
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:var(--r-pill);
  background:var(--grad-main);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 16px 38px rgba(255,92,57,.36);
  transition:transform .25s var(--ease),opacity .3s var(--ease);
}
.float-cta:hover{color:#fff;transform:scale(1.04);}
.float-cta.hide{opacity:0;transform:translateY(14px);pointer-events:none;}
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:85;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.96);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.mobile-bar .btn{width:100%;padding:12px 20px;font-size:15px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:38px;}
  .nav-menu a{padding:8px 11px;font-size:13.8px;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .page-hero{padding:44px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:-1;}
  .fb-1{left:8px;top:14px;}
  .fb-2{right:8px;bottom:14px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:88px 20px 110px;border:0;border-radius:0;
    background:#fff;box-shadow:-18px 0 46px rgba(25,22,34,.16);
    transform:translateX(100%);transition:transform .32s var(--ease);
    overflow-y:auto;z-index:95;
  }
  .nav-menu.open{transform:translateX(0);}
  .nav-menu a{padding:15px 16px;border-bottom:1px solid var(--line);border-radius:12px;font-size:15.5px;}
  .nav-menu a.active{background:var(--brand-soft);}
  .nav-toggle{display:flex;z-index:96;}
  .nav-actions .btn{display:none;}
  .float-cta{display:none;}
  .mobile-bar{display:block;}
  .site-footer{padding-bottom:80px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .grid-3{grid-template-columns:1fr;gap:20px;}
  .prepare-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .cta-band{padding:40px 24px;border-radius:var(--r-lg);}
  .compare-card{padding:24px 22px;}
  .faq-q{padding:18px 18px;font-size:15.4px;gap:12px;}
  .faq-a-inner{padding:0 18px 20px 60px;font-size:15px;}
  .footer-grid{grid-template-columns:1fr;}
  .proof-card{flex:0 0 280px;}
  .hero-badges{gap:10px;}
  .stat-badge{padding:10px 16px 10px 14px;}
}
@media (max-width:520px){
  h3{font-size:18px;}
  .hero-lead{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .card-body{padding:20px 20px 22px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}