/* roulang page: index */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF3D7F;
  --brand-3:#6C4BF6;
  --accent:#FFD166;
  --ink:#1A1420;
  --body:#4A4353;
  --muted:#7A7286;
  --bg:#FDF8F3;
  --surface:#FFFFFF;
  --line:#EDE4DA;
  --tint:#FFF1EA;
  --purple-tint:#F1EDFF;
  --brand-grad:linear-gradient(118deg,#FF6A2B 0%,#FF3D7F 52%,#6C4BF6 100%);
  --shadow-sm:0 2px 10px rgba(26,20,32,.05);
  --shadow-md:0 14px 34px rgba(26,20,32,.09);
  --shadow-brand:0 12px 28px rgba(255,106,43,.24);
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --container:1200px;
}
*,*::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,sans-serif;
  font-size:16px;line-height:1.85;color:var(--body);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700}
p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,7vw,96px) 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.sec-title{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.2vw,30px);font-weight:700;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  border-radius:4px;background:var(--brand-grad);
}
.sec-desc{margin-top:12px;padding-left:16px;font-size:15px;color:var(--muted);max-width:640px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--brand-1);
  transition:gap .18s ease,color .18s ease;
}
.link-more svg{width:16px;height:16px;transition:transform .18s ease}
.link-more:hover{gap:12px;color:var(--brand-2)}
.link-more:hover svg{transform:translateX(3px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,43,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(255,106,43,.22)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}
.btn-hero-main{background:#fff;color:var(--ink);box-shadow:0 14px 32px rgba(26,20,32,.22)}
.btn-hero-main:hover{transform:translateY(-2px);background:#fff;filter:none;box-shadow:0 18px 38px rgba(26,20,32,.26)}
.btn-hero-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.6);backdrop-filter:blur(4px)}
.btn-hero-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-2px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--tint);color:var(--ink);font-size:13px;line-height:1;white-space:nowrap;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-1);flex:none}
.badge b{font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.badge-gold{background:rgba(255,209,102,.24)}
.badge-gold::before{background:var(--accent)}
.badge-glass{
  background:rgba(255,255,255,.94);color:var(--ink);box-shadow:0 10px 24px rgba(26,20,32,.16);
  height:34px;padding:0 14px;font-size:12.5px;font-weight:600;
}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:8px;background:var(--purple-tint);color:var(--brand-3);font-size:12.5px;font-weight:700;line-height:1}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 8px;background:linear-gradient(180deg,rgba(253,248,243,.97) 55%,rgba(253,248,243,0))}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-md);padding:10px 14px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;box-shadow:var(--shadow-brand);flex:none;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;color:var(--ink);letter-spacing:.02em}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:8px;margin:0 auto}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 14px;border-radius:14px;background:var(--bg);
  font-size:13px;font-weight:600;color:var(--body);
  transition:background .18s ease,color .18s ease;
}
.nav-item svg{width:18px;height:18px;color:var(--muted);transition:color .18s ease}
.nav-item:hover{background:var(--tint);color:var(--ink)}
.nav-item:hover svg{color:var(--brand-1)}
.nav-item.active{background:var(--tint);color:var(--ink);font-weight:800}
.nav-item.active svg{color:var(--brand-1)}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:3px;border-radius:3px;background:var(--brand-grad);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;background:var(--bg);
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;display:none;flex-direction:column;
  background:rgba(253,248,243,.985);backdrop-filter:blur(10px);padding:20px 20px 28px;
}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
.drawer-close{width:44px;height:44px;border-radius:14px;background:var(--surface);border:1px solid var(--line);display:grid;place-items:center;color:var(--ink)}
.drawer-close svg{width:18px;height:18px}
.drawer-list{display:flex;flex-direction:column;gap:10px}
.drawer-item{
  display:flex;align-items:center;gap:12px;min-height:56px;padding:0 16px;border-radius:16px;
  background:var(--surface);border:1px solid var(--line);font-size:14.5px;font-weight:600;color:var(--ink);
}
.drawer-item svg{width:20px;height:20px;color:var(--brand-1)}
.drawer-item.active{background:var(--tint);border-color:#FFD9C7}
.drawer-foot{margin-top:auto;padding-top:24px}
.drawer-note{margin-top:12px;font-size:12px;color:var(--muted);text-align:center}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(44px,5vw,74px) 0 clamp(56px,7vw,92px)}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background-image:
    linear-gradient(118deg,rgba(255,106,43,.76) 0%,rgba(255,61,127,.66) 52%,rgba(108,75,246,.78) 100%),
    url(/assets/images/backpic/back-2.png);
  background-size:cover,cover;background-position:center,center;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;opacity:.08;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 78% 84%,#000,transparent 68%);
  mask-image:radial-gradient(circle at 78% 84%,#000,transparent 68%);
}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.42);
  color:#fff;font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero h1{
  margin-top:20px;color:#fff;font-size:clamp(28px,3.4vw,44px);line-height:1.25;font-weight:800;
  letter-spacing:-.01em;text-shadow:0 2px 18px rgba(26,20,32,.18);
}
.hero-sub{margin-top:18px;font-size:clamp(15px,1.3vw,17px);color:rgba(255,255,255,.94);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:18px;font-size:12px;color:rgba(255,255,255,.82);letter-spacing:.02em}
.hero-visual{position:relative}
.device-card{
  position:relative;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);
  border-radius:28px;padding:20px;backdrop-filter:blur(8px);box-shadow:0 26px 60px rgba(26,20,32,.24);
}
.device-screen{
  position:relative;border-radius:20px;overflow:hidden;background:var(--ink);
  aspect-ratio:16/10;
}
.device-screen img{width:100%;height:100%;object-fit:cover}
.device-screen::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,20,32,0) 40%,rgba(26,20,32,.62) 100%);
}
.device-caption{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;color:#fff;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.float-badge{position:absolute;z-index:3;box-shadow:0 12px 28px rgba(26,20,32,.22)}
.fb-1{top:-14px;right:14px}
.fb-2{bottom:52px;left:-16px}
.fb-3{bottom:-12px;right:26px}

/* ---------- 信任条 ---------- */
.trust-strip{margin-top:-28px;position:relative;z-index:5}
.trust-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:22px 26px;
}
.trust-item{display:flex;align-items:center;gap:12px}
.trust-ico{width:38px;height:38px;border-radius:12px;background:var(--tint);display:grid;place-items:center;color:var(--brand-1);flex:none}
.trust-ico svg{width:19px;height:19px}
.trust-item strong{display:block;font-size:14px;color:var(--ink);font-weight:700}
.trust-item span{font-size:12.5px;color:var(--muted)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);padding:26px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:38px}
.bento-main{grid-column:span 6;display:flex;flex-direction:column;padding:0;overflow:hidden}
.bento-main figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--bg)}
.bento-main figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.bento-main:hover figure img{transform:scale(1.04)}
.bento-body{padding:26px;display:flex;flex-direction:column;gap:14px;flex:1}
.bento-body h3{font-size:20px;font-weight:800}
.bento-body p{font-size:14.5px;color:var(--body)}
.bento-side{grid-column:span 3;display:flex;flex-direction:column;gap:14px}
.bento-side h3{font-size:18px;font-weight:800}
.bento-side p{font-size:14px;color:var(--body)}
.ico-box{width:46px;height:46px;border-radius:14px;background:var(--tint);display:grid;place-items:center;color:var(--brand-1)}
.ico-box svg{width:22px;height:22px}
.ico-box.purple{background:var(--purple-tint);color:var(--brand-3)}
.check-list{margin-top:2px;display:flex;flex-direction:column;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:var(--body);line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:15px;height:15px;border-radius:50%;
  background:var(--tint);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:.85em;width:6px;height:3px;border-left:2px solid var(--brand-1);border-bottom:2px solid var(--brand-1);transform:rotate(-45deg);
}
.card-badge-row{margin-top:auto;padding-top:8px}

/* ---------- 场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:38px}
.scene-card{display:flex;flex-direction:column;gap:12px}
.scene-card:nth-child(2),.scene-card:nth-child(4){margin-top:28px}
.scene-card h3{font-size:17px;font-weight:800}
.scene-card p{font-size:14px;color:var(--body)}
.scene-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--brand-1);margin-top:auto;transition:gap .18s ease}
.scene-link:hover{gap:10px}
.scene-link svg{width:14px;height:14px}

/* ---------- 数据面板 ---------- */
.stats-panel{
  position:relative;overflow:hidden;margin-top:38px;border-radius:var(--radius-lg);
  background:var(--ink);color:#fff;padding:clamp(28px,3.4vw,44px);
  display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center;
}
.stats-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:var(--brand-grad);opacity:.28;filter:blur(10px);
}
.case-item{position:relative;padding:18px 0 18px 20px;border-top:1px solid rgba(255,255,255,.14)}
.case-item:first-child{border-top:none;padding-top:0}
.case-item::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;border-radius:2px;background:var(--brand-grad)}
.case-item:first-child::before{top:4px}
.case-item h3{color:#fff;font-size:16px;font-weight:700}
.case-item p{margin-top:6px;font-size:14px;color:rgba(255,255,255,.7)}
.case-item .badge{margin-top:12px;background:rgba(255,255,255,.12);color:#fff}
.case-item .badge::before{background:var(--accent)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;position:relative;z-index:2}
.stat-block{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-md);padding:20px 16px;text-align:center}
.stat-num{font-size:clamp(24px,2.6vw,34px);font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2}
.stat-num small{font-size:14px;font-weight:700;color:rgba(255,255,255,.8);margin-left:2px}
.stat-label{margin-top:6px;font-size:12px;color:rgba(255,255,255,.66);letter-spacing:.04em}

/* ---------- 方案 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px;align-items:stretch}
.plan-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 26px;box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative;
}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
.plan-card.featured{background:var(--ink);border-color:var(--ink);color:#fff;box-shadow:0 20px 44px rgba(26,20,32,.22)}
.plan-card.featured h3,.plan-card.featured .plan-price .num{color:#fff}
.plan-card.featured .plan-desc,.plan-card.featured .plan-note{color:rgba(255,255,255,.68)}
.plan-card.featured .plan-list li{color:rgba(255,255,255,.86)}
.plan-card.featured .plan-list li::before{background:rgba(255,255,255,.16)}
.plan-card.featured .plan-list li::after{border-color:var(--accent)}
.plan-flag{
  position:absolute;top:-12px;left:26px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-grad);color:#fff;font-size:12px;font-weight:800;display:inline-flex;align-items:center;gap:6px;
  box-shadow:var(--shadow-brand);
}
.plan-card h3{font-size:19px;font-weight:800}
.plan-desc{margin-top:8px;font-size:13.5px;color:var(--muted);min-height:44px}
.plan-price{display:flex;align-items:flex-end;gap:6px;margin:18px 0 6px}
.plan-price .cur{font-size:15px;font-weight:700;color:var(--muted);line-height:1.6}
.plan-price .num{font-size:38px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:.01em;color:var(--ink)}
.plan-price .unit{font-size:13px;color:var(--muted);line-height:1.8}
.plan-list{display:flex;flex-direction:column;gap:11px;margin:18px 0 26px}
.plan-list li{position:relative;padding-left:24px;font-size:13.8px;line-height:1.7}
.plan-list li::before{content:"";position:absolute;left:0;top:.5em;width:15px;height:15px;border-radius:50%;background:var(--tint)}
.plan-list li::after{content:"";position:absolute;left:4px;top:.78em;width:6px;height:3px;border-left:2px solid var(--brand-1);border-bottom:2px solid var(--brand-1);transform:rotate(-45deg)}
.plan-note{margin-top:14px;font-size:12px;color:var(--muted)}
.plan-card .btn{margin-top:auto}
.plan-compare{margin-top:24px;text-align:center;font-size:13.5px;color:var(--muted)}
.plan-compare a{color:var(--brand-1);font-weight:700;border-bottom:1px solid rgba(255,106,43,.35)}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:38px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
.post-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-grad)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-top{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted)}
.post-body h3{
  font-size:16.5px;font-weight:800;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body p{
  font-size:13.8px;color:var(--body);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid var(--line)}
.post-time{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.post-more{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--brand-1)}
.post-more svg{width:14px;height:14px;transition:transform .18s ease}
.post-card:hover .post-more svg{transform:translateX(3px)}
.empty-state{
  margin-top:38px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:220px;max-height:320px;padding:36px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-lg);background:var(--surface);text-align:center;
}
.empty-state svg{width:38px;height:38px;color:var(--muted)}
.empty-state p{font-size:14.5px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:38px;max-width:860px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:#FFD9C7;box-shadow:var(--shadow-md)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;font-size:14.5px;font-weight:800;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:10px;height:10px;flex:none;
  border-right:2px solid var(--brand-1);border-bottom:2px solid var(--brand-1);
  transform:rotate(45deg) translateY(-2px);transition:transform .16s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-2px)}
.faq-body{position:relative;padding:0 22px 20px 26px;font-size:14.5px;line-height:1.8;color:var(--body)}
.faq-body::before{content:"";position:absolute;left:12px;top:4px;bottom:24px;width:3px;border-radius:3px;background:var(--brand-grad)}

/* ---------- 转化条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(118deg,rgba(255,106,43,.14) 0%,rgba(255,61,127,.12) 55%,rgba(108,75,246,.16) 100%);
  border:1px solid var(--line);padding:clamp(26px,3.2vw,40px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-band h2{font-size:clamp(20px,2vw,26px);font-weight:800}
.cta-band p{margin-top:8px;font-size:14px;color:var(--body)}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:240px;height:240px;border-radius:50%;
  background:var(--brand-grad);opacity:.18;filter:blur(6px);
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:clamp(56px,7vw,96px);background:var(--ink);color:rgba(255,255,255,.72);
  padding:clamp(40px,5vw,64px) 0 28px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-grad)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.brand-footer .brand-text strong{color:#fff}
.brand-footer .brand-text small{color:rgba(255,255,255,.56)}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:280px}
.footer-col h4{font-size:14px;color:#fff;font-weight:800;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.66);transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.62);
}

/* ---------- 断点 ---------- */
@media (max-width:1200px){
  .container{padding:0 22px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-card:nth-child(2),.scene-card:nth-child(4){margin-top:0}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-card{gap:12px}
  .nav-actions .btn-sm{display:none}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:-1}
  .hero h1{font-size:clamp(26px,4.6vw,34px)}
  .fb-1{right:6px}
  .fb-2{left:-6px}
  .bento{grid-template-columns:repeat(6,1fr)}
  .bento-main{grid-column:span 6}
  .bento-side{grid-column:span 3}
  .trust-inner{grid-template-columns:repeat(2,1fr)}
  .stats-panel{grid-template-columns:1fr;gap:28px}
  .plan-grid{grid-template-columns:1fr;max-width:560px;margin-left:auto;margin-right:auto}
  .plan-card.featured{order:-1}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .hero{padding-top:32px}
  .hero h1{font-size:28px}
  .hero-actions .btn{flex:1 1 auto}
  .trust-inner{grid-template-columns:1fr;padding:18px}
  .bento{grid-template-columns:1fr}
  .bento-main,.bento-side{grid-column:span 1}
  .scene-grid{grid-template-columns:1fr;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;display:flex;padding-bottom:8px}
  .scene-card{flex:0 0 82%;scroll-snap-align:start}
  .stats-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-desc{max-width:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
}
@media (max-width:480px){
  .section{padding:48px 0}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .card{padding:18px}
  .plan-card{padding:24px 20px}
  .faq-item summary{padding:14px 16px;font-size:14px}
  .faq-body{padding:0 16px 18px 22px}
  .brand-text small{display:none}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF3D7F;
  --brand-3:#6C4BF6;
  --accent:#FFD166;
  --ink:#1A1420;
  --body:#4A4353;
  --muted:#7A7286;
  --bg:#FDF8F3;
  --surface:#FFFFFF;
  --line:#EDE4DA;
  --tint:#FFF1EA;
  --tint-violet:#F1EDFF;
  --brand-grad:linear-gradient(118deg,#FF6A2B 0%,#FF3D7F 52%,#6C4BF6 100%);
  --shadow-sm:0 2px 10px rgba(26,20,32,.05);
  --shadow-md:0 14px 34px rgba(26,20,32,.09);
  --shadow-brand:0 12px 28px rgba(255,106,43,.24);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --container:1200px;
}
*,*::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:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
img{max-width:100%;display:block;height:auto;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 0;}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-md);
  padding:10px 14px;
  backdrop-filter:saturate(140%) blur(4px);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;
  box-shadow:var(--shadow-brand);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;color:var(--ink);font-weight:800;letter-spacing:.02em;}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:6px;flex:1 1 auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 14px;border-radius:14px;
  background:var(--bg);color:var(--body);
  font-size:13px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-item svg{width:20px;height:20px;flex:0 0 auto;}
.nav-item:hover{background:var(--tint);color:var(--ink);}
.nav-item:hover svg{color:var(--brand-1);}
.nav-item.active{
  background:var(--tint);color:var(--ink);font-weight:800;
  box-shadow:inset 0 -2px 0 0 var(--brand-1);
}
.nav-item.active svg{color:var(--brand-1);}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;}
.nav-toggle:hover{background:var(--tint);border-color:#FFD9C7;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:700;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
}
.btn svg{width:18px;height:18px;}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,43,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(255,106,43,.22);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:13.5px;}
.btn-light{background:#fff;color:var(--ink);border-color:transparent;}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(26,20,32,.18);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13.5px;font-weight:700;color:var(--brand-1);
}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--bg);
  transform:translateX(101%);
  visibility:hidden;
  opacity:0;
  transition:transform .24s ease,opacity .24s ease,visibility .24s;
  display:flex;flex-direction:column;
  padding:18px 20px 26px;
}
.drawer.open{transform:translateX(0);visibility:visible;opacity:1;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:22px;line-height:1;
  display:grid;place-items:center;cursor:pointer;
}
.drawer-close:hover{background:var(--tint);border-color:#FFD9C7;}
.drawer-links{display:flex;flex-direction:column;gap:10px;padding:18px 0;overflow-y:auto;}
.drawer-links .nav-item{height:52px;font-size:14.5px;justify-content:flex-start;}
.drawer-cta{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}
.drawer-cta .btn{width:100%;}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;
  margin-top:20px;
  border-radius:28px;
  overflow:hidden;
  color:#fff;
  background-image:
    linear-gradient(112deg,rgba(26,20,32,.78) 0%,rgba(255,61,127,.56) 55%,rgba(108,75,246,.6) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-md);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.07;
}
.page-hero-inner{
  position:relative;z-index:2;
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
  padding:clamp(32px,4.4vw,58px) clamp(24px,3.4vw,48px);
  min-height:290px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.82);margin-bottom:16px;flex-wrap:wrap;}
.crumbs a:hover{color:#fff;text-decoration:underline;}
.crumbs span{opacity:.6;}
.page-hero h1{
  color:#fff;
  font-size:clamp(28px,3.2vw,42px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.01em;
  margin-bottom:14px;
  max-width:18em;
}
.page-hero .hero-sub{
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
  max-width:36em;
  margin-bottom:22px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:12.5px;font-weight:600;
  backdrop-filter:blur(4px);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;}
.hero-badge-stack{display:flex;flex-direction:column;gap:12px;flex:0 0 auto;}
.hero-badge{
  background:rgba(255,255,255,.94);
  border-radius:18px;
  padding:14px 18px;
  min-width:168px;
  box-shadow:0 14px 30px rgba(26,20,32,.18);
}
.hero-badge strong{
  display:block;
  font-size:24px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1.2;
}
.hero-badge strong em{font-style:normal;font-size:12px;color:var(--muted);font-weight:700;margin-left:2px;}
.hero-badge span{font-size:12.5px;color:var(--muted);}

/* ============ 通用板块 ============ */
.section{padding:clamp(56px,7vw,92px) 0 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head h2{
  font-size:clamp(22px,2.2vw,30px);
  font-weight:700;
  position:relative;
  padding-left:16px;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:var(--brand-grad);
}
.section-head p{font-size:15.5px;color:var(--body);max-width:640px;}
.section-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ============ Bento ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7;}
.bento-main{
  grid-column:span 6;
  grid-row:span 2;
  padding:0;
  overflow:hidden;
  display:flex;flex-direction:column;
}
.bento-main .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--tint-violet);}
.bento-main .thumb img{width:100%;height:100%;object-fit:cover;}
.bento-main .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,20,32,0) 45%,rgba(26,20,32,.55) 100%);
}
.thumb-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--ink);
  font-size:12.5px;font-weight:700;
}
.thumb-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block;}
.bento-main .body{padding:26px 28px 28px;display:flex;flex-direction:column;flex:1 1 auto;}
.bento-main h3{font-size:21px;font-weight:700;margin-bottom:12px;}
.bento-main p{font-size:14.8px;line-height:1.85;}
.bento-small{
  grid-column:span 3;
  padding:26px;
  display:flex;flex-direction:column;gap:12px;
}
.icon-chip{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--tint);color:var(--brand-1);
}
.icon-chip svg{width:22px;height:22px;}
.icon-chip.violet{background:var(--tint-violet);color:var(--brand-3);}
.icon-chip.gold{background:rgba(255,209,102,.24);color:#B27A00;}
.bento-small h3{font-size:17.5px;font-weight:700;}
.bento-small p{font-size:14px;line-height:1.8;color:var(--body);}
.data-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--tint);color:var(--ink);
  font-size:12.8px;font-weight:600;align-self:flex-start;
}
.data-chip i{width:6px;height:6px;border-radius:50%;background:var(--brand-1);display:block;}
.data-chip b{font-variant-numeric:tabular-nums;font-weight:800;color:#C23E0B;}
.data-chip.gold{background:rgba(255,209,102,.24);}
.data-chip.gold i{background:var(--accent);}
.data-chip.gold b{color:#8A5B00;}

/* 勾选列表 */
.check-list{display:flex;flex-direction:column;gap:10px;margin:4px 0 20px;}
.check-list li{
  position:relative;padding-left:26px;
  font-size:14.2px;line-height:1.75;color:var(--body);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:14px;height:14px;border-radius:50%;
  background:var(--tint);
  box-shadow:inset 0 0 0 1.5px rgba(255,106,43,.45);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:.92em;
  width:5px;height:2.5px;border-left:2px solid var(--brand-1);border-bottom:2px solid var(--brand-1);
  transform:rotate(-45deg);
}

/* ============ 步骤列表 ============ */
.step-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  padding:clamp(26px,3vw,40px);
}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.step-item{position:relative;padding-top:6px;}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:14px;
  background:var(--brand-grad);color:#fff;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
  box-shadow:var(--shadow-brand);
  margin-bottom:16px;
}
.step-item h3{font-size:17.5px;font-weight:700;margin-bottom:10px;}
.step-item p{font-size:14.4px;line-height:1.82;color:var(--body);}
.step-item .tip{
  display:inline-block;margin-top:12px;
  font-size:12.5px;color:var(--muted);
  border-left:2px solid var(--line);padding-left:10px;
}

/* ============ 适配表 ============ */
.fit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.fit-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.fit-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7;}
.fit-card .fit-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.fit-card h3{font-size:16px;font-weight:700;}
.fit-card dl{margin:0;display:flex;flex-direction:column;gap:10px;}
.fit-card dt{font-size:12.5px;color:var(--muted);letter-spacing:.02em;}
.fit-card dd{margin:0;font-size:14px;color:var(--body);line-height:1.7;}
.fit-card dd b{color:var(--ink);font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#FFD9C7;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;
  font-size:14.8px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{
  flex:0 0 auto;width:22px;height:22px;color:var(--muted);
  transition:transform .16s ease,color .16s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand-1);}
.faq-item .faq-body{
  padding:12px 22px 20px;
  font-size:14.5px;line-height:1.85;color:var(--body);
  border-left:3px solid transparent;
  border-image:var(--brand-grad) 1;
  margin-left:0;
}
.faq-item[open] .faq-body{border-left:3px solid var(--brand-1);}

/* ============ CTA ============ */
.cta-band{
  margin-top:clamp(56px,7vw,92px);
  border-radius:28px;
  padding:clamp(28px,3.6vw,46px);
  background:linear-gradient(118deg,#FFF1EA 0%,#FFE9F1 52%,#F1EDFF 100%);
  border:1px solid #F6DFD2;
  box-shadow:var(--shadow-sm);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:var(--brand-grad);opacity:.1;
}
.cta-band h2{font-size:clamp(21px,2.1vw,28px);font-weight:800;margin-bottom:8px;position:relative;}
.cta-band p{font-size:14.5px;color:var(--body);position:relative;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:clamp(56px,7vw,96px);
  background:var(--ink);
  color:rgba(255,255,255,.72);
  border-top:3px solid transparent;
  border-image:var(--brand-grad) 1;
  padding:clamp(40px,5vw,64px) 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.brand-footer .brand-text strong{color:#fff;}
.brand-footer .brand-text small{color:rgba(255,255,255,.55);}
.footer-desc{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);margin-top:16px;max-width:26em;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.62);}
.footer-col a{font-size:13.5px;color:rgba(255,255,255,.62);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .nav-item{padding:0 11px;font-size:12.5px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:992px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-card{padding:10px;}
  .page-hero-inner{flex-direction:column;align-items:flex-start;gap:24px;min-height:0;}
  .hero-badge-stack{flex-direction:row;flex-wrap:wrap;width:100%;}
  .hero-badge{flex:1 1 160px;}
  .bento{grid-template-columns:repeat(6,1fr);}
  .bento-main{grid-column:span 6;grid-row:auto;}
  .bento-small{grid-column:span 3;}
  .steps{grid-template-columns:1fr;gap:22px;}
  .fit-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section-head.row{flex-direction:column;align-items:flex-start;gap:12px;}
  .bento{grid-template-columns:1fr;}
  .bento-small{grid-column:span 1;padding:22px;}
  .page-hero h1{font-size:28px;}
  .hero-btns{width:100%;}
  .hero-btns .btn{flex:1 1 auto;}
  .fit-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (max-width:520px){
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .hero-tags{gap:8px;}
  .hero-tag{font-size:12px;padding:0 11px;}
  .page-hero-inner{padding:26px 20px;}
  .step-panel{padding:22px;}
  .faq-item summary{padding:14px 18px;font-size:14px;}
  .faq-item .faq-body{padding:10px 18px 18px;}
  .brand-badge-name{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root {
      --brand-1: #FF6A2B;
      --brand-2: #FF3D7F;
      --brand-3: #6C4BF6;
      --accent: #FFD166;
      --ink: #1A1420;
      --body: #4A4353;
      --muted: #7A7286;
      --bg: #FDF8F3;
      --surface: #FFFFFF;
      --line: #EDE4DA;
      --brand-grad: linear-gradient(118deg, #FF6A2B 0%, #FF3D7F 52%, #6C4BF6 100%);
      --shadow-sm: 0 2px 10px rgba(26, 20, 32, .05);
      --shadow-md: 0 14px 34px rgba(26, 20, 32, .09);
      --shadow-brand: 0 12px 28px rgba(255, 106, 43, .24);
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
    }

    *,
    *::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", "Noto Sans SC", sans-serif;
      font-size: 16px;
      line-height: 1.85;
      color: var(--body);
      background: var(--bg);
      overflow-x: hidden;
    }

    body.drawer-open {
      overflow: hidden;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    figure,
    blockquote {
      margin-top: 0;
    }

    ul,
    ol {
      padding-left: 1.4em;
    }

    ::selection {
      background: rgba(255, 106, 43, .22);
      color: var(--ink);
    }

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

    .site-header {
      position: sticky;
      top: 12px;
      z-index: 100;
      padding: 0;
    }

    .nav-card {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 10px 14px;
      background: rgba(255, 255, 255, .94);
      border: 1px solid var(--line);
      border-radius: 20px;
      box-shadow: var(--shadow-md);
      backdrop-filter: blur(14px);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      min-width: max-content;
      text-decoration: none;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      background: #FFF1EA;
      color: var(--brand-1);
      flex: 0 0 auto;
    }

    .brand-mark svg {
      width: 23px;
      height: 23px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

    .brand-text strong {
      font-size: 18px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -.02em;
    }

    .brand-text small {
      margin-top: 3px;
      font-size: 10.5px;
      color: var(--muted);
      font-weight: 600;
      letter-spacing: .08em;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      flex: 1 1 auto;
      min-width: 0;
    }

    .nav-item {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 7px;
      height: 44px;
      padding: 0 13px;
      border-radius: 14px;
      border: 1px solid transparent;
      background: var(--bg);
      color: var(--body);
      font-size: 13px;
      font-weight: 600;
      white-space: nowrap;
      transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
    }

    .nav-item svg {
      width: 18px;
      height: 18px;
      color: var(--muted);
      transition: color .18s ease;
      flex: 0 0 auto;
    }

    .nav-item:hover {
      background: #FFF1EA;
      color: var(--ink);
      border-color: #FFE0D2;
      transform: translateY(-1px);
    }

    .nav-item:hover svg {
      color: var(--brand-1);
    }

    .nav-item.active {
      background: #FFF7F2;
      color: var(--ink);
      font-weight: 800;
    }

    .nav-item.active::after {
      content: "";
      position: absolute;
      left: 13px;
      right: 13px;
      bottom: 5px;
      height: 3px;
      border-radius: 999px;
      background: var(--brand-grad);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 48px;
      padding: 0 26px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 700;
      line-height: 1;
      text-decoration: none;
      white-space: nowrap;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease, filter .18s ease;
    }

    .btn svg {
      width: 17px;
      height: 17px;
    }

    .btn-primary {
      background: var(--brand-grad);
      color: #fff;
      box-shadow: var(--shadow-brand);
    }

    .btn-primary:hover {
      filter: brightness(1.06);
      transform: translateY(-2px);
      box-shadow: 0 16px 34px rgba(255, 106, 43, .3);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 8px 18px rgba(255, 106, 43, .22);
    }

    .btn-ghost {
      background: var(--surface);
      color: var(--ink);
      border-color: var(--line);
    }

    .btn-ghost:hover {
      border-color: var(--brand-1);
      color: var(--brand-1);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-ghost:active {
      transform: translateY(0);
    }

    .btn-sm {
      height: 42px;
      padding: 0 20px;
      font-size: 14px;
    }

    .btn:focus-visible,
    .nav-item:focus-visible,
    .nav-toggle:focus-visible,
    .brand:focus-visible,
    .post-nav-card:focus-visible,
    .related-item:focus-visible,
    .footer-col a:focus-visible,
    .drawer-link:focus-visible,
    .drawer-close:focus-visible,
    summary:focus-visible,
    .article-content a:focus-visible {
      outline: 2px solid var(--brand-3);
      outline-offset: 2px;
    }

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      padding: 0;
      border-radius: 13px;
      border: 1px solid var(--line);
      background: var(--surface);
      color: var(--ink);
    }

    .nav-toggle svg {
      width: 22px;
      height: 22px;
    }

    .drawer {
      position: fixed;
      inset: 0;
      z-index: 200;
      display: none;
      background: rgba(26, 20, 32, .38);
      padding: 14px;
    }

    .drawer.open {
      display: block;
    }

    .drawer-panel {
      width: min(100%, 420px);
      height: 100%;
      margin-left: auto;
      background: var(--surface);
      border-radius: 24px;
      box-shadow: 0 24px 80px rgba(26, 20, 32, .24);
      padding: 18px;
      display: flex;
      flex-direction: column;
      gap: 18px;
      overflow-y: auto;
    }

    .drawer-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }

    .drawer-close {
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 13px;
      border: 1px solid var(--line);
      background: var(--bg);
      color: var(--ink);
    }

    .drawer-close svg {
      width: 21px;
      height: 21px;
    }

    .drawer-links {
      display: grid;
      gap: 10px;
    }

    .drawer-link {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 52px;
      padding: 10px 14px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: var(--bg);
      color: var(--body);
      font-size: 14px;
      font-weight: 700;
    }

    .drawer-link svg {
      width: 20px;
      height: 20px;
      color: var(--muted);
      flex: 0 0 auto;
    }

    .drawer-link:hover {
      background: #FFF1EA;
      color: var(--ink);
      border-color: #FFE0D2;
    }

    .drawer-cta {
      width: 100%;
      margin-top: auto;
    }

    .article-hero {
      padding: clamp(30px, 4.6vw, 52px) 0 0;
    }

    .article-hero-inner {
      position: relative;
      overflow: hidden;
      padding: clamp(24px, 3.6vw, 42px);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 92% 10%, rgba(255, 106, 43, .14), transparent 34%),
        radial-gradient(circle at 80% 100%, rgba(108, 75, 246, .10), transparent 32%),
        linear-gradient(180deg, #FFF9F5 0%, #FFFFFF 100%);
      box-shadow: var(--shadow-sm);
    }

    .article-hero-inner::after {
      content: "";
      position: absolute;
      right: -36px;
      top: -46px;
      width: 170px;
      height: 170px;
      border-radius: 50%;
      border: 1px solid rgba(255, 106, 43, .16);
      pointer-events: none;
    }

    .breadcrumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      font-size: 13px;
      color: var(--muted);
      position: relative;
      z-index: 1;
    }

    .breadcrumbs a {
      color: var(--muted);
      text-decoration: none;
      transition: color .18s ease;
    }

    .breadcrumbs a:hover {
      color: var(--brand-1);
    }

    .breadcrumbs .sep {
      color: #C9BDB5;
    }

    .breadcrumbs .current {
      max-width: min(560px, 72vw);
      color: var(--ink);
      font-weight: 600;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .article-title {
      position: relative;
      z-index: 1;
      max-width: 920px;
      margin: 0;
      color: var(--ink);
      font-size: clamp(26px, 3vw, 36px);
      line-height: 1.35;
      font-weight: 800;
      letter-spacing: -.025em;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .meta-row {
      position: relative;
      z-index: 1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-top: 16px;
      font-size: 13px;
      color: var(--muted);
    }

    .meta-row .dot {
      color: #C9BDB5;
    }

    .meta-badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 28px;
      padding: 3px 12px;
      border-radius: 999px;
      background: #F1EDFF;
      color: var(--brand-3);
      font-size: 13px;
      font-weight: 700;
    }

    .meta-badge::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--brand-3);
    }

    .article-section {
      padding: clamp(40px, 5vw, 66px) 0;
    }

    .article-layout {
      display: grid;
      grid-template-columns: minmax(0, 8fr) minmax(280px, 4fr);
      gap: 28px;
      align-items: start;
    }

    .article-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: clamp(22px, 3vw, 40px);
      box-shadow: var(--shadow-sm);
    }

    .article-cover {
      margin: 0 0 32px;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      border-radius: 18px;
      background: #F6EEE7;
    }

    .article-cover img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .article-content {
      max-width: 760px;
      color: var(--body);
      font-size: 16px;
      line-height: 1.9;
      word-break: break-word;
    }

    .article-content > *:first-child {
      margin-top: 0;
    }

    .article-content h2 {
      position: relative;
      margin: 32px 0 16px;
      padding-left: 14px;
      color: var(--ink);
      font-size: clamp(22px, 2.2vw, 30px);
      line-height: 1.35;
      font-weight: 700;
      letter-spacing: -.02em;
    }

    .article-content h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .22em;
      bottom: .22em;
      width: 4px;
      border-radius: 999px;
      background: var(--brand-grad);
    }

    .article-content h3 {
      margin: 24px 0 10px;
      color: var(--ink);
      font-size: 19px;
      line-height: 1.5;
      font-weight: 700;
    }

    .article-content h4 {
      margin: 20px 0 8px;
      color: var(--ink);
      font-size: 17px;
      font-weight: 700;
    }

    .article-content p {
      margin: 0 0 1em;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 1.2em;
      padding-left: 1.4em;
    }

    .article-content li {
      margin-bottom: .45em;
      line-height: 1.85;
    }

    .article-content li::marker {
      color: var(--brand-1);
    }

    .article-content a {
      color: var(--brand-1);
      text-decoration: underline;
      text-underline-offset: 3px;
      text-decoration-thickness: 1px;
    }

    .article-content a:hover {
      color: var(--brand-2);
    }

    .article-content strong {
      color: var(--ink);
      font-weight: 700;
    }

    .article-content blockquote {
      margin: 1.5em 0;
      padding: 18px 20px;
      border-left: 4px solid var(--brand-1);
      border-radius: 0 14px 14px 0;
      background: #FFF7F2;
      color: var(--ink);
      font-style: normal;
    }

    .article-content blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-content figure {
      margin: 1.6em 0;
    }

    .article-content figure img {
      border-radius: 16px;
    }

    .article-content figcaption {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      text-align: center;
    }

    .article-content table {
      width: 100%;
      margin: 1.5em 0;
      border-collapse: collapse;
      font-size: 14px;
      line-height: 1.7;
      background: var(--surface);
    }

    .article-content th,
    .article-content td {
      padding: 11px 13px;
      border-bottom: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
    }

    .article-content th {
      background: #FFF7F2;
      color: var(--ink);
      font-weight: 700;
    }

    .article-content table {
      display: block;
      overflow-x: auto;
      white-space: nowrap;
    }

    .article-content img {
      height: auto;
      border-radius: 16px;
    }

    .article-content code {
      padding: 2px 6px;
      border-radius: 6px;
      background: #F6EEE7;
      color: var(--ink);
      font-size: .92em;
    }

    .article-content pre {
      overflow-x: auto;
      padding: 18px;
      border-radius: 14px;
      background: var(--ink);
      color: #fff;
      line-height: 1.7;
    }

    .empty-state {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      min-height: 280px;
      padding: 34px 20px;
      text-align: center;
      border: 1px dashed var(--line);
      border-radius: 18px;
      background: #FFFCF9;
    }

    .empty-state svg {
      width: 46px;
      height: 46px;
      color: var(--brand-1);
      margin-bottom: 14px;
    }

    .empty-state h2 {
      margin: 0 0 8px;
      color: var(--ink);
      font-size: 22px;
      font-weight: 800;
    }

    .empty-state p {
      max-width: 420px;
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.8;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 30px;
      padding-top: 20px;
      border-top: 1px solid var(--line);
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 30px;
      padding: 4px 12px;
      border-radius: 999px;
      background: #F1EDFF;
      color: var(--brand-3);
      font-size: 13px;
      font-weight: 700;
    }

    .post-nav {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-top: 22px;
    }

    .post-nav-card {
      display: block;
      padding: 18px 20px;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      background: var(--surface);
      box-shadow: var(--shadow-sm);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }

    .post-nav-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-md);
      border-color: #FFD9C7;
    }

    .post-nav-label {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-bottom: 7px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
    }

    .post-nav-card strong {
      display: -webkit-box;
      overflow: hidden;
      color: var(--ink);
      font-size: 14.5px;
      line-height: 1.55;
      font-weight: 700;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
    }

    .sidebar {
      position: sticky;
      top: 96px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .side-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 20px;
      box-shadow: var(--shadow-sm);
    }

    .side-title {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0 0 12px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 800;
      line-height: 1.4;
    }

    .side-title::before {
      content: "";
      width: 4px;
      height: 16px;
      border-radius: 999px;
      background: var(--brand-grad);
    }

    .side-info {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .side-info li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 9px;
      border-bottom: 1px solid var(--line);
      font-size: 13px;
      color: var(--muted);
    }

    .side-info li:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }

    .side-info b {
      color: var(--ink);
      font-weight: 700;
    }

    .related-list {
      display: grid;
      gap: 2px;
    }

    .related-item {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 10px 0;
      border-bottom: 1px solid var(--line);
      text-decoration: none;
    }

    .related-item:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .related-item:first-child {
      padding-top: 0;
    }

    .related-thumb {
      width: 64px;
      height: 64px;
      border-radius: 12px;
      object-fit: cover;
      flex: 0 0 auto;
      background: #F6EEE7;
    }

    .related-copy {
      min-width: 0;
    }

    .related-copy h4 {
      display: -webkit-box;
      overflow: hidden;
      margin: 0 0 4px;
      color: var(--ink);
      font-size: 13.5px;
      line-height: 1.5;
      font-weight: 700;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      transition: color .18s ease;
    }

    .related-item:hover h4 {
      color: var(--brand-1);
    }

    .related-copy time {
      color: var(--muted);
      font-size: 12px;
    }

    .side-actions {
      display: grid;
      gap: 9px;
    }

    .side-actions .btn {
      width: 100%;
      height: 44px;
      font-size: 14px;
    }

    .section {
      padding: clamp(42px, 5vw, 66px) 0;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 24px;
    }

    .section-head h2 {
      margin: 0;
      color: var(--ink);
      font-size: clamp(22px, 2.2vw, 30px);
      line-height: 1.35;
      font-weight: 700;
      letter-spacing: -.02em;
    }

    .section-head p {
      max-width: 520px;
      margin: 6px 0 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--brand-1);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .text-link svg {
      width: 16px;
      height: 16px;
      transition: transform .18s ease;
    }

    .text-link:hover svg {
      transform: translateX(4px);
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 920px;
      margin: 0 auto;
    }

    .faq-item {
      overflow: hidden;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: var(--surface);
      box-shadow: var(--shadow-sm);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 56px;
      padding: 14px 20px;
      color: var(--ink);
      font-size: 14.5px;
      font-weight: 700;
      line-height: 1.5;
      cursor: pointer;
      list-style: none;
      transition: background .18s ease;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary:hover {
      background: #FFF9F5;
    }

    .faq-item summary::after {
      content: "+";
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 26px;
      height: 26px;
      flex: 0 0 auto;
      border-radius: 999px;
      background: #FFF1EA;
      color: var(--brand-1);
      font-size: 18px;
      font-weight: 700;
      line-height: 1;
      transition: transform .16s ease, background .16s ease;
    }

    .faq-item[open] summary::after {
      content: "×";
      transform: rotate(180deg);
      background: #F1EDFF;
      color: var(--brand-3);
    }

    .faq-answer {
      padding: 0 20px 18px;
      color: var(--body);
      font-size: 14.5px;
      line-height: 1.8;
    }

    .faq-item[open] .faq-answer {
      border-left: 3px solid var(--brand-1);
      margin-left: 20px;
      padding-left: 17px;
    }

    .cta-band {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding: clamp(22px, 3vw, 32px);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 96% 0%, rgba(255, 106, 43, .16), transparent 34%),
        radial-gradient(circle at 78% 100%, rgba(108, 75, 246, .12), transparent 36%),
        linear-gradient(118deg, #FFF7F2 0%, #FFFDFB 100%);
      box-shadow: var(--shadow-sm);
    }

    .cta-band h2 {
      margin: 0 0 6px;
      color: var(--ink);
      font-size: clamp(21px, 2.2vw, 27px);
      line-height: 1.35;
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .cta-band p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .site-footer {
      position: relative;
      margin-top: clamp(40px, 5vw, 70px);
      background: var(--ink);
      color: rgba(255, 255, 255, .72);
      padding: 58px 0 24px;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 3px;
      background: var(--brand-grad);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .8fr 1fr .9fr;
      gap: 34px;
      padding-bottom: 36px;
    }

    .brand-footer .brand-text strong {
      color: #fff;
    }

    .brand-footer .brand-text small {
      color: rgba(255, 255, 255, .55);
    }

    .brand-footer .brand-mark {
      background: var(--brand-grad);
      color: #fff;
    }

    .footer-desc {
      max-width: 290px;
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .62);
      font-size: 13.5px;
      line-height: 1.8;
    }

    .footer-col h4 {
      margin: 3px 0 14px;
      color: #fff;
      font-size: 14px;
      font-weight: 700;
    }

    .footer-col ul {
      display: grid;
      gap: 9px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-col li {
      color: rgba(255, 255, 255, .62);
      font-size: 13.5px;
      line-height: 1.65;
    }

    .footer-col a {
      color: rgba(255, 255, 255, .62);
      text-decoration: none;
      transition: color .18s ease;
    }

    .footer-col a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding-top: 18px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .5);
      font-size: 13px;
      line-height: 1.6;
    }

    .footer-bottom p {
      margin: 0;
    }

    @media (max-width: 1200px) {
      .container {
        padding-left: 20px;
        padding-right: 20px;
      }

      .nav-item {
        padding: 0 10px;
        font-size: 12.5px;
      }

      .nav-item svg {
        width: 17px;
        height: 17px;
      }

      .nav-card {
        gap: 12px;
      }
    }

    @media (max-width: 992px) {
      .nav-links,
      .nav-actions .btn {
        display: none;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .nav-card {
        padding: 8px 10px;
      }

      .article-layout {
        grid-template-columns: 1fr;
      }

      .sidebar {
        position: static;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
      }

      .cta-band {
        align-items: flex-start;
        flex-direction: column;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }
    }

    @media (max-width: 768px) {
      body {
        font-size: 15px;
      }

      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .brand-text strong {
        font-size: 17px;
      }

      .brand-text small {
        font-size: 10px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .article-hero {
        padding-top: 24px;
      }

      .article-hero-inner {
        padding: 22px 20px;
        border-radius: 20px;
      }

      .article-title {
        font-size: 28px;
      }

      .breadcrumbs .current {
        max-width: 100%;
        white-space: normal;
        overflow: visible;
        text-overflow: initial;
      }

      .article-card {
        padding: 22px 18px;
        border-radius: 20px;
      }

      .article-content {
        max-width: none;
      }

      .article-content h2 {
        padding-left: 12px;
      }

      .post-nav {
        grid-template-columns: 1fr;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
      }

      .cta-band .btn {
        width: 100%;
      }

      .faq-item[open] .faq-answer {
        margin-left: 14px;
        padding-left: 14px;
      }

      .section {
        padding: 40px 0;
      }
    }

    @media (max-width: 480px) {
      .nav-card {
        border-radius: 18px;
      }

      .article-title {
        font-size: 26px;
      }

      .meta-row {
        font-size: 12.5px;
      }

      .article-cover {
        margin-bottom: 24px;
        border-radius: 15px;
      }

      .btn {
        width: 100%;
        padding: 0 18px;
      }

      .post-nav-card {
        padding: 16px;
      }

      .side-card {
        padding: 18px 16px;
      }

      .related-thumb {
        width: 58px;
        height: 58px;
      }

      .faq-item summary {
        padding: 14px 16px;
        font-size: 14px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
      }
    }

/* roulang page: category3 */
:root{
  --brand-1:#FF6A2B;
  --brand-2:#FF3D7F;
  --brand-3:#6C4BF6;
  --accent:#FFD166;
  --ink:#1A1420;
  --body:#4A4353;
  --muted:#7A7286;
  --bg:#FDF8F3;
  --surface:#FFFFFF;
  --line:#EDE4DA;
  --tint:#FFF1EA;
  --violet:#F1EDFF;
  --brand-grad:linear-gradient(118deg,#FF6A2B 0%,#FF3D7F 52%,#6C4BF6 100%);
  --shadow-sm:0 2px 10px rgba(26,20,32,.05);
  --shadow-md:0 14px 34px rgba(26,20,32,.09);
  --shadow-brand:0 12px 28px rgba(255,106,43,.24);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.32;font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:rgba(255,106,43,.18)}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:clamp(48px,6vw,84px) 0}
.sec-title{
  position:relative;
  padding-left:18px;
  font-size:clamp(22px,2.2vw,30px);
  letter-spacing:-.2px;
  margin:0 0 12px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:.3em;bottom:.3em;
  width:4px;border-radius:3px;
  background:var(--brand-grad);
}
.sec-lead{max-width:760px;color:var(--muted);font-size:15px;margin-bottom:28px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.2px;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,opacity .18s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;transition:transform .18s ease}
.btn-primary{
  background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,106,43,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,43,.22)}
.btn-ghost{
  background:var(--surface);color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm);
}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:44px;padding:0 22px;font-size:14px}
.btn-block{width:100%}
.btn:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-1);
}
.link-arrow svg{width:16px;height:16px;transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}
.link-arrow:focus-visible{outline:2px solid var(--brand-3);outline-offset:3px;border-radius:6px}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 6px;background:linear-gradient(180deg,rgba(253,248,243,.96) 60%,rgba(253,248,243,0))}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-md);
  padding:10px 14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--brand-grad);color:#fff;
  box-shadow:var(--shadow-brand);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;color:var(--ink);letter-spacing:.5px}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:6px;flex:1 1 auto}
.nav-item{
  position:relative;
  display:inline-flex;align-items:center;gap:7px;
  height:44px;padding:0 14px;border-radius:14px;
  background:var(--bg);color:var(--body);
  font-size:13px;font-weight:500;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-item svg{width:19px;height:19px;color:var(--muted);transition:color .18s ease}
.nav-item:hover{background:var(--tint);color:var(--ink);transform:translateY(-1px)}
.nav-item:hover svg{color:var(--brand-1)}
.nav-item.active{color:var(--ink);font-weight:700;background:var(--tint)}
.nav-item.active svg{color:var(--brand-1)}
.nav-item.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:3px;
  background:var(--brand-grad);
}
.nav-item:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:var(--bg);cursor:pointer;
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle svg{width:22px;height:22px}
.nav-toggle:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(26,20,32,.42);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;
  backdrop-filter:blur(2px);
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:var(--bg);padding:20px;
  display:flex;flex-direction:column;gap:14px;
  transform:translateX(100%);transition:transform .24s ease;
  box-shadow:var(--shadow-md);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head span{font-size:13px;color:var(--muted);letter-spacing:1px}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;display:grid;place-items:center;color:var(--ink);
}
.drawer-close svg{width:20px;height:20px}
.drawer-links{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.drawer-links a{
  display:flex;align-items:center;gap:10px;
  padding:13px 16px;border-radius:14px;background:var(--surface);
  border:1px solid var(--line);font-size:14px;color:var(--ink);
}
.drawer-links a svg{width:20px;height:20px;color:var(--brand-1)}
.drawer-links a.active{background:var(--tint);border-color:#FFD9C7;font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.drawer-foot p{font-size:12px;color:var(--muted);text-align:center;margin:0}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;
  margin-top:8px;
  border-radius:var(--r-lg);
  overflow:hidden;
  background-image:
    linear-gradient(112deg,rgba(26,20,32,.82) 0%,rgba(255,106,43,.68) 52%,rgba(108,75,246,.72) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-md);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;opacity:.55;
}
.hero-inner{position:relative;z-index:2;padding:clamp(30px,4vw,52px) clamp(22px,3vw,44px);max-width:820px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.9)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span.sep{opacity:.6}
.page-hero h1{
  color:#fff;
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.28;font-weight:800;letter-spacing:-.3px;
  margin:0 0 14px;
  text-shadow:0 2px 18px rgba(26,20,32,.28);
}
.hero-lead{color:rgba(255,255,255,.9);font-size:15px;max-width:620px;margin-bottom:20px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--ink);
  font-size:13px;font-weight:500;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-1)}
.badge.amber{background:rgba(255,209,102,.92)}
.badge.amber::before{background:#B07A00}
.badge b{font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 双列主体 ---------- */
.support-layout{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:28px;
  align-items:start;
}
.support-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:22px}
.support-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);
  padding:22px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.support-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
.support-card .icon-box{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--tint);color:var(--brand-1);margin-bottom:14px;
}
.support-card:nth-child(3n) .icon-box{background:var(--violet);color:var(--brand-3)}
.support-card .icon-box svg{width:22px;height:22px}
.support-card h3{font-size:17px;margin-bottom:8px}
.support-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:12px}
.support-card .card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:28px;height:22px;padding:0 8px;border-radius:999px;
  background:rgba(255,209,102,.24);color:#8A5B00;
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.figure-card{
  margin:22px 0 0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-card figcaption{
  padding:12px 20px 16px;font-size:13px;color:var(--muted);
}

/* 侧栏 */
.support-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--shadow-sm);padding:22px;
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 svg{width:18px;height:18px;color:var(--brand-1)}
details.faq-item{
  border:1px solid var(--line);border-radius:16px;background:var(--surface);
  padding:0 16px;margin-bottom:10px;transition:border-color .18s ease,box-shadow .18s ease;
}
details.faq-item:last-child{margin-bottom:0}
details.faq-item[open]{border-color:#FFD9C7;box-shadow:var(--shadow-sm)}
details.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:56px;padding:12px 0;
  font-size:14.5px;font-weight:700;color:var(--ink);
}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary .chev{flex:0 0 auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--bg);color:var(--muted);transition:transform .16s ease,color .16s ease}
details.faq-item summary .chev svg{width:14px;height:14px}
details.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand-1)}
details.faq-item summary:focus-visible{outline:2px solid var(--brand-3);outline-offset:3px;border-radius:10px}
.faq-body{
  font-size:14px;line-height:1.8;color:var(--muted);
  padding:0 0 16px 14px;border-left:3px solid transparent;
  border-image:var(--brand-grad) 1;
}
.faq-body p{margin:0}

/* 表单 */
.form-row{margin-bottom:14px}
.form-row label{display:block;font-size:13px;color:var(--ink);font-weight:600;margin-bottom:6px}
.form-row label .req{color:var(--brand-2)}
.form-row input,.form-row select,.form-row textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font-size:14px;font-family:inherit;
  padding:0 14px;height:46px;line-height:44px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-row textarea{height:96px;line-height:1.7;padding:12px 14px;resize:vertical}
.form-row input::placeholder,.form-row textarea::placeholder{color:#B3AABD}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(255,106,43,.14);
}
.form-note{font-size:12px;color:var(--muted);margin:10px 0 14px;line-height:1.7}
.form-msg{font-size:12px;color:#E5484D;margin-top:6px;display:none}
.form-msg.show{display:block}

/* ---------- 宽卡 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:clamp(26px,3.4vw,40px);
  border-radius:var(--r-lg);
  border:1px solid #FFD9C7;
  background:linear-gradient(118deg,#FFF1EA 0%,#FFEBF2 52%,#F1EDFF 100%);
  box-shadow:var(--shadow-sm);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:var(--brand-grad);opacity:.12;filter:blur(6px);
}
.cta-band h2{font-size:clamp(20px,2.2vw,27px);margin-bottom:8px;position:relative}
.cta-band p{font-size:14px;color:var(--muted);margin:0;position:relative}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:clamp(40px,6vw,72px);
  background:var(--ink);
  color:rgba(255,255,255,.72);
  border-top:3px solid transparent;
  border-image:var(--brand-grad) 1;
  padding:clamp(38px,5vw,60px) 0 24px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.brand-footer .brand-text strong{color:#fff}
.brand-footer .brand-text small{color:rgba(255,255,255,.5)}
.footer-desc{margin-top:14px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:280px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col li{font-size:13.5px;color:rgba(255,255,255,.62)}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:34px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom p{margin:0}

/* ---------- 断点 ---------- */
@media (max-width:1200px){
  .support-layout{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:24px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn-sm{display:none}
  .support-layout{grid-template-columns:1fr}
  .support-side{position:static;display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .support-cards{grid-template-columns:1fr}
  .support-side{grid-template-columns:1fr}
  .page-hero{border-radius:20px}
  .hero-inner{max-width:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-band .cta-actions{width:100%}
  .cta-band .btn{width:100%}
}
@media (max-width:480px){
  body{font-size:15.5px}
  .nav-card{padding:8px 10px;border-radius:18px}
  .brand-mark{width:38px;height:38px;border-radius:12px}
  .brand-text strong{font-size:16px}
  .support-card{padding:18px}
  .side-card{padding:18px}
  .btn{width:100%}
  .nav-toggle{width:42px;height:42px}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
    --brand-1:#FF6A2B;
    --brand-2:#FF3D7F;
    --brand-3:#6C4BF6;
    --accent:#FFD166;
    --ink:#1A1420;
    --body:#4A4353;
    --muted:#7A7286;
    --bg:#FDF8F3;
    --surface:#FFFFFF;
    --line:#EDE4DA;
    --brand-grad:linear-gradient(118deg,#FF6A2B 0%,#FF3D7F 52%,#6C4BF6 100%);
    --shadow-sm:0 2px 10px rgba(26,20,32,.05);
    --shadow-md:0 14px 34px rgba(26,20,32,.09);
    --shadow-brand:0 12px 28px rgba(255,106,43,.24);
    --radius-lg:24px;
    --radius:18px;
    --radius-sm:12px;
    --tint:#FFF1EA;
  }

  *,*::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","Helvetica Neue",sans-serif;
    background:var(--bg);
    color:var(--body);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:8px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
  .section{padding:clamp(44px,5.5vw,76px) 0}
  .num{font-variant-numeric:tabular-nums;letter-spacing:.02em}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    padding:12px 0 0;
    background:linear-gradient(to bottom,rgba(253,248,243,.96) 55%,rgba(253,248,243,0));
    backdrop-filter:blur(8px);
  }
  .nav-card{
    display:flex;align-items:center;gap:14px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:var(--shadow-md);
    padding:10px 14px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{
    width:40px;height:40px;border-radius:14px;
    display:grid;place-items:center;
    background:var(--brand-grad);color:#fff;
    box-shadow:var(--shadow-brand);
  }
  .brand-mark svg{width:22px;height:22px}
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-text strong{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em}
  .brand-text small{font-size:11px;color:var(--muted);letter-spacing:.06em}
  .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap}
  .nav-item{
    position:relative;
    display:inline-flex;align-items:center;gap:6px;
    height:44px;padding:0 13px;border-radius:14px;
    background:var(--bg);color:var(--body);
    font-size:13px;font-weight:500;
    transition:background-color .18s ease,color .18s ease,transform .18s ease;
  }
  .nav-item svg{width:18px;height:18px;flex:0 0 auto}
  .nav-item:hover{background:var(--tint);color:var(--brand-1)}
  .nav-item.active{background:var(--tint);color:var(--ink);font-weight:700}
  .nav-item.active::after{
    content:"";position:absolute;left:13px;right:13px;bottom:5px;height:3px;
    border-radius:3px;background:var(--brand-grad);
  }
  .nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:14px;
    border:1px solid var(--line);background:var(--bg);color:var(--ink);
    align-items:center;justify-content:center;cursor:pointer;
    transition:border-color .18s ease,color .18s ease;
  }
  .nav-toggle:hover{border-color:var(--brand-1);color:var(--brand-1)}
  .nav-toggle svg{width:22px;height:22px}

  /* ---------- 抽屉导航 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:90;
    display:none;flex-direction:column;
    padding:20px 20px 26px;
    background:rgba(253,248,243,.985);
    backdrop-filter:blur(10px);
    overflow-y:auto;
  }
  .drawer.open{display:flex}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}
  .drawer-nav{display:grid;gap:10px}
  .drawer-nav .nav-item{height:54px;width:100%;font-size:15px;justify-content:flex-start;padding:0 16px}
  .drawer-nav .nav-item.active::after{left:16px;right:16px;bottom:7px}
  .drawer-cta{margin-top:auto;padding-top:22px}
  .drawer-cta .btn{width:100%}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 26px;border-radius:999px;
    border:1px solid transparent;
    font-size:15px;font-weight:600;line-height:1;
    cursor:pointer;white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,filter .18s ease;
  }
  .btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--shadow-brand)}
  .btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,43,.3)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(255,106,43,.24)}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
  .btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-sm{height:42px;padding:0 20px;font-size:14px}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand-1);font-size:14px;font-weight:600;
  }
  .link-arrow svg{width:16px;height:16px;transition:transform .18s ease}
  .link-arrow:hover svg{transform:translateX(4px)}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    height:28px;padding:0 12px;border-radius:999px;
    background:var(--tint);color:var(--body);
    font-size:13px;font-weight:500;line-height:1;
  }
  .badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-1);flex:0 0 auto}
  .badge b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums}
  .badge-gold{background:rgba(255,209,102,.22)}
  .badge-gold::before{background:var(--accent)}
  .badge-dark{background:rgba(255,255,255,.16);color:#fff}
  .badge-dark::before{background:var(--accent)}
  .badge-dark b{color:#fff}
  .tag{
    display:inline-flex;align-items:center;
    height:24px;padding:0 10px;border-radius:999px;
    background:#F1EDFF;color:var(--brand-3);
    font-size:12px;font-weight:600;line-height:1;
  }

  /* ---------- 页头 Hero ---------- */
  .page-hero{padding-top:18px}
  .hero-panel{
    position:relative;
    min-height:280px;
    border-radius:28px;
    overflow:hidden;
    padding:clamp(26px,4vw,52px);
    display:flex;flex-direction:column;justify-content:center;gap:16px;
    color:#fff;
    border:1px solid rgba(26,20,32,.06);
    background-image:
      linear-gradient(112deg,rgba(26,20,32,.72) 0%,rgba(108,75,246,.52) 62%,rgba(255,106,43,.46) 100%),
      url("/assets/images/backpic/back-1.webp");
    background-size:cover;
    background-position:center;
    box-shadow:var(--shadow-md);
  }
  .hero-panel::after{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
    background-size:22px 22px;opacity:.07;
  }
  .hero-inner{position:relative;z-index:1;max-width:780px}
  .crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:14px;flex-wrap:wrap}
  .crumbs a{color:rgba(255,255,255,.9)}
  .crumbs a:hover{color:#fff;text-decoration:underline}
  .crumbs span{color:rgba(255,255,255,.6)}
  .hero-panel h1{
    color:#fff;
    font-size:clamp(26px,3.2vw,40px);
    line-height:1.3;font-weight:800;
    letter-spacing:-.01em;
    margin-bottom:14px;
  }
  .hero-panel h1 em{
    font-style:normal;
    background:linear-gradient(180deg,transparent 62%,rgba(255,209,102,.55) 62%);
    padding:0 2px;
  }
  .hero-sub{font-size:15px;color:rgba(255,255,255,.86);max-width:640px;margin-bottom:20px}
  .hero-badges{display:flex;gap:10px;flex-wrap:wrap}

  /* ---------- 通用板块标题 ---------- */
  .sec-head{max-width:760px;margin-bottom:34px}
  .sec-head h2{
    position:relative;padding-left:16px;
    font-size:clamp(22px,2.2vw,30px);line-height:1.4;
    margin-bottom:12px;
  }
  .sec-head h2::before{
    content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
    border-radius:4px;background:var(--brand-grad);
  }
  .sec-head p{color:var(--muted);font-size:15px;line-height:1.8}

  /* ---------- 布局：目录 + 时间线 ---------- */
  .layout{
    display:grid;
    grid-template-columns:minmax(0,290px) minmax(0,1fr);
    gap:32px;align-items:start;
  }
  .side-sticky{position:sticky;top:96px;display:grid;gap:16px}
  .side-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px;
    box-shadow:var(--shadow-sm);
  }
  .side-card h3{
    font-size:14px;font-weight:700;
    letter-spacing:.02em;margin-bottom:12px;
    display:flex;align-items:center;gap:8px;
  }
  .side-card h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-1)}
  .toc-list{display:grid;gap:2px}
  .toc-list a{
    display:flex;align-items:center;gap:10px;
    padding:9px 10px;border-radius:10px;
    font-size:14px;color:var(--body);
    transition:background-color .18s ease,color .18s ease;
  }
  .toc-list a::before{
    content:"";width:2px;height:14px;border-radius:2px;
    background:var(--line);transition:background .18s ease;
  }
  .toc-list a:hover{background:var(--bg);color:var(--brand-1)}
  .toc-list a:hover::before{background:var(--brand-grad)}
  .side-note{font-size:13px;color:var(--muted);line-height:1.75}
  .side-cover{border-radius:14px;overflow:hidden;margin-bottom:12px;border:1px solid var(--line)}
  .side-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
  .side-card .btn{width:100%;margin-top:14px}

  .records-head{margin-bottom:24px}
  .records-head h2{
    position:relative;padding-left:16px;
    font-size:clamp(22px,2.2vw,30px);line-height:1.4;margin-bottom:10px;
  }
  .records-head h2::before{
    content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
    border-radius:4px;background:var(--brand-grad);
  }
  .records-head p{color:var(--muted);font-size:15px}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;padding-left:34px}
  .timeline::before{
    content:"";position:absolute;left:6px;top:14px;bottom:14px;width:2px;
    background:var(--line);border-radius:2px;
  }
  .tl-item{position:relative;margin-bottom:16px}
  .tl-item:last-child{margin-bottom:0}
  .tl-item::before{
    content:"";position:absolute;left:-34px;top:26px;
    width:14px;height:14px;border-radius:50%;
    background:#fff;border:2px solid var(--line);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .tl-item.is-current::before{
    background:var(--brand-grad);border-color:#fff;
    box-shadow:0 0 0 4px rgba(255,106,43,.16);
  }
  .tl-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:20px 22px;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
  .tl-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
  .tl-date{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 10px;border-radius:999px;
    background:var(--bg);border:1px solid var(--line);
    font-size:12.5px;color:var(--muted);
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }
  .tl-card h3{font-size:18px;line-height:1.5;margin-bottom:8px}
  .tl-card p{font-size:14.5px;line-height:1.8;color:var(--body);margin-bottom:12px}
  .tl-tags{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
  .tl-tags .badge{height:26px;font-size:12.5px}

  /* ---------- 更新类型卡片 ---------- */
  .type-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .type-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:24px;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .type-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
  .type-icon{
    width:46px;height:46px;border-radius:14px;
    display:grid;place-items:center;margin-bottom:14px;
    background:var(--tint);color:var(--brand-1);
  }
  .type-icon svg{width:22px;height:22px}
  .type-card h3{font-size:18px;margin-bottom:8px}
  .type-card p{font-size:14.5px;line-height:1.8;color:var(--body);margin-bottom:12px}
  .type-card ul{display:grid;gap:6px;margin-bottom:14px}
  .type-card li{
    position:relative;padding-left:14px;
    font-size:13.5px;color:var(--muted);line-height:1.75;
  }
  .type-card li::before{
    content:"";position:absolute;left:0;top:.62em;
    width:2px;height:12px;border-radius:2px;background:var(--brand-grad);
  }

  /* ---------- 升级步骤 ---------- */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
  .step{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:22px 20px;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .step:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#FFD9C7}
  .step-num{
    width:36px;height:36px;border-radius:12px;
    display:grid;place-items:center;margin-bottom:14px;
    background:var(--brand-grad);color:#fff;
    font-size:15px;font-weight:800;
    font-variant-numeric:tabular-nums;
    box-shadow:var(--shadow-brand);
  }
  .step h3{font-size:16.5px;line-height:1.5;margin-bottom:8px}
  .step p{font-size:14px;line-height:1.8;color:var(--body)}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:880px}
  .faq-item{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-sm);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .faq-item:hover{border-color:#FFD9C7;box-shadow:var(--shadow-md)}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:14px 20px;
    font-size:14.5px;font-weight:700;color:var(--ink);
    cursor:pointer;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary .chev{
    flex:0 0 auto;width:22px;height:22px;color:var(--muted);
    transition:transform .16s ease,color .16s ease;
  }
  .faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand-1)}
  .faq-body{
    position:relative;
    padding:0 20px 18px 20px;
    font-size:14.5px;line-height:1.8;color:var(--body);
  }
  .faq-body::before{
    content:"";position:absolute;left:20px;top:2px;bottom:20px;width:3px;
    border-radius:3px;background:var(--brand-grad);opacity:.85;
  }
  .faq-body p{padding-left:14px}

  /* ---------- CTA 条 ---------- */
  .cta-band{
    display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
    padding:clamp(24px,3.6vw,42px);
    border-radius:var(--radius-lg);
    border:1px solid #FFE0CF;
    background:linear-gradient(118deg,rgba(255,106,43,.12) 0%,rgba(255,61,127,.1) 52%,rgba(108,75,246,.12) 100%);
    box-shadow:var(--shadow-sm);
  }
  .cta-band h2{font-size:clamp(20px,2.2vw,26px);line-height:1.4;margin-bottom:8px}
  .cta-band p{font-size:14px;color:var(--muted)}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:clamp(40px,5vw,70px);
    background:var(--ink);
    color:rgba(255,255,255,.7);
    border-top:3px solid transparent;
    border-image:var(--brand-grad) 1;
    padding:clamp(38px,5vw,60px) 0 24px;
    font-size:14px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.2fr;
    gap:32px;
    padding-bottom:34px;
  }
  .brand-footer .brand-text strong{color:#fff}
  .brand-footer .brand-text small{color:rgba(255,255,255,.55)}
  .footer-desc{margin-top:14px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);max-width:280px}
  .footer-col h4{
    color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;
    letter-spacing:.02em;
  }
  .footer-col ul{display:grid;gap:9px}
  .footer-col li{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.62)}
  .footer-col a{color:rgba(255,255,255,.66);transition:color .18s ease}
  .footer-col a:hover{color:var(--accent)}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
    padding-top:18px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.62);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1200px){
    .nav-item{padding:0 11px;font-size:12.5px}
  }
  @media (max-width:992px){
    .nav-links{display:none}
    .nav-toggle{display:inline-flex}
    .nav-actions .btn-primary{display:none}
    .layout{grid-template-columns:1fr;gap:24px}
    .side-sticky{position:static}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
    .hero-panel{min-height:250px}
  }
  @media (max-width:768px){
    .container{padding:0 18px}
    .type-grid{grid-template-columns:1fr}
    .steps{grid-template-columns:1fr}
    .hero-panel{border-radius:22px}
    .hero-panel h1{font-size:26px}
    .timeline{padding-left:26px}
    .timeline::before{left:3px}
    .tl-item::before{left:-26px;top:24px;width:12px;height:12px}
    .cta-band{flex-direction:column;align-items:flex-start}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 auto}
  }
  @media (max-width:520px){
    .brand-text small{display:none}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
    .tl-card{padding:18px}
    .type-card,.step{padding:18px}
    .btn{width:100%}
    .hero-badges .badge{font-size:12px}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    html{scroll-behavior:auto}
  }