/* roulang page: index */
:root{
  --c-primary:#FF5B2E;
  --c-primary-dark:#E0431A;
  --c-secondary:#5B2A86;
  --c-secondary-lite:#8A4BFF;
  --c-accent:#C8F55A;
  --c-bg:#FFF7F2;
  --c-bg-2:#F6EEE8;
  --c-ink:#211A1E;
  --c-ink-2:#6E6470;
  --c-ink-3:#9A8F98;
  --c-line:#EFE3DA;
  --c-dark:#1C1220;
  --grad-brand:linear-gradient(135deg,#FF5B2E 0%,#8A4BFF 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(33,26,30,.06);
  --shadow-md:0 10px 30px rgba(33,26,30,.10);
  --shadow-lift:0 18px 44px rgba(91,42,134,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--c-primary)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.3px;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(255,91,46,.5);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.row{--bs-gutter-x:24px}
.btn{border-radius:var(--r-pill);font-weight:700;border:0;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease}
.btn:hover{transform:translateY(-2px)}
.card{border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.badge{border-radius:var(--r-pill);font-weight:600}
.form-control{border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;height:48px;padding:0 16px;font-size:15px;color:var(--c-ink);box-shadow:none}
.form-control:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,91,46,.16);outline:none}
.form-control::placeholder{color:var(--c-ink-3)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#fff}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;font-size:13px;letter-spacing:.2px}
.topbar-text{opacity:.88}
.topbar-close{background:transparent;border:0;color:#fff;font-size:18px;line-height:1;padding:4px 6px;opacity:.6;cursor:pointer;transition:opacity .2s}
.topbar-close:hover{opacity:1}
.topbar.hide{display:none}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,247,242,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  color:#fff;font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);
}
.logo-text{font-size:18px;font-weight:800;letter-spacing:-.4px;white-space:nowrap;color:var(--c-ink)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:12px}
.nav-item{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-item::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--c-primary);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.nav-item:hover{color:var(--c-primary)}
.nav-item:hover::after,.nav-item.active::after{width:16px}
.nav-item.active{color:var(--c-ink);font-weight:700}
.nav-cta{
  margin-left:auto;display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:12px 24px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 8px 18px rgba(255,91,46,.28);
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease;
}
.nav-cta:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,91,46,.34)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(28,18,32,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;
  background:var(--c-bg);z-index:90;padding:24px 20px;
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:8px;box-shadow:-10px 0 40px rgba(28,18,32,.18);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);background:#fff;font-size:20px;line-height:1;color:var(--c-ink);cursor:pointer}
.drawer-link{
  display:flex;align-items:center;min-height:56px;padding:0 14px;
  border-left:3px solid transparent;border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:16px;font-weight:600;color:var(--c-ink-2);
}
.drawer-link.active,.drawer-link:hover{border-left-color:var(--c-primary);background:var(--c-bg-2);color:var(--c-ink)}
.drawer .btn-brand{margin-top:auto;width:100%}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 28px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 10px 26px rgba(138,75,255,.26);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(138,75,255,.32);filter:saturate(1.05)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 28px;border-radius:var(--r-pill);
  background:transparent;color:var(--c-primary);font-size:15px;font-weight:700;
  border:1.5px solid rgba(255,91,46,.45);
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-ghost:hover{background:rgba(255,91,46,.08);border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-light-brand{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:48px;padding:14px 28px;border-radius:var(--r-pill);
  background:#fff;color:var(--c-primary);font-size:15px;font-weight:800;
  transition:transform .22s ease,box-shadow .22s ease;
}
.btn-light-brand:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(28,18,32,.22);color:var(--c-primary-dark)}

/* ---------- 徽章 / 标签 ---------- */
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--c-bg-2);border:1px solid var(--c-line);
  font-size:12px;color:var(--c-ink-2);
}
.stat-pill strong{font-size:18px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;line-height:1}
.stat-pill.accent{background:var(--c-accent);border-color:transparent;color:var(--c-dark)}
.stat-pill.accent strong{color:var(--c-dark)}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,91,46,.1);color:var(--c-primary-dark);font-size:12px;font-weight:700;
  white-space:nowrap;
}
.tag-pill.purple{background:rgba(138,75,255,.12);color:var(--c-secondary)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:56px 0 96px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(138,75,255,.16),rgba(138,75,255,0) 68%);
  border-radius:50%;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;bottom:-220px;left:-160px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(255,91,46,.14),rgba(255,91,46,0) 70%);
  border-radius:50%;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;z-index:1}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-ink-2);box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:inline-block}
.hero-title{
  font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero-title em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:32px}
.hero-stage{position:relative;display:flex;align-items:center;justify-content:center;gap:18px}
.stage-card{
  position:relative;margin:0;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--shadow-lift);background:var(--c-dark);
}
.stage-card img{width:100%;height:100%;object-fit:cover}
.stage-card-main{width:280px;aspect-ratio:9/16;flex:0 0 auto;z-index:2}
.stage-card-sm{width:150px;aspect-ratio:9/16;border-radius:20px;opacity:.95}
.stage-card-sm:first-child{transform:translateY(-34px)}
.stage-card-sm:last-child{transform:translateY(34px)}
.stage-card figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px;
  background:linear-gradient(transparent,rgba(28,18,32,.82));
  color:#fff;display:flex;flex-direction:column;gap:4px;
}
.stage-card-main figcaption strong{font-size:17px;font-weight:800}
.stage-card-main figcaption span{font-size:12px;opacity:.82}
.stage-card-sm figcaption{padding:12px}
.stage-card-sm figcaption span{font-size:12px;font-weight:700}
.stage-badge{
  position:absolute;top:14px;left:14px;height:26px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-dark);font-size:11px;font-weight:800;
  display:inline-flex;align-items:center;z-index:3;
}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-title{font-size:clamp(22px,2.6vw,30px);font-weight:800}
.section-desc{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-ink-2);max-width:620px}
.link-more{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--c-primary);
  padding:8px 4px;border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.link-more:hover{border-bottom-color:var(--c-primary);color:var(--c-primary-dark)}
.link-more::after{content:"→";font-size:14px}

/* ---------- 竖屏片段卡 ---------- */
.clip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.clip-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--c-dark);
  aspect-ratio:9/16;box-shadow:var(--shadow-md);
  transition:transform .25s ease,box-shadow .25s ease;
}
.clip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.clip-card img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.clip-card:hover img{transform:scale(1.03)}
.clip-card .clip-tag{position:absolute;top:16px;left:16px;z-index:2}
.clip-card .clip-num{
  position:absolute;top:16px;right:16px;z-index:2;height:26px;padding:0 10px;
  border-radius:var(--r-pill);background:rgba(255,255,255,.9);color:var(--c-ink);
  font-size:11px;font-weight:800;display:inline-flex;align-items:center;
}
.clip-body{
  position:absolute;left:0;right:0;bottom:0;padding:20px;z-index:2;
  background:linear-gradient(transparent,rgba(28,18,32,.86) 42%);
  color:#fff;display:flex;flex-direction:column;gap:10px;
}
.clip-title{font-size:17px;line-height:1.45;font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clip-meta{display:flex;gap:8px;flex-wrap:wrap}
.clip-meta span{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  font-size:11px;font-weight:600;letter-spacing:.2px;
}

/* ---------- 编号清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px}
.check-item{
  display:flex;align-items:flex-start;gap:20px;padding:24px 0;
  border-bottom:1px solid var(--c-line);transition:background .2s ease;
}
.check-num{
  flex:0 0 auto;font-size:28px;font-weight:800;line-height:1;
  color:var(--c-secondary-lite);font-variant-numeric:tabular-nums;letter-spacing:-1px;
  padding-top:4px;
}
.check-body h3{font-size:17px;font-weight:800;margin-bottom:6px}
.check-body p{font-size:14px;line-height:1.7;color:var(--c-ink-2)}
.check-arrow{margin-left:auto;color:var(--c-ink-3);font-size:18px;line-height:1;padding-top:6px;transition:color .2s ease,transform .2s ease}
.check-item:hover .check-arrow{color:var(--c-primary);transform:translateX(4px)}

/* ---------- CMS 列表 ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cms-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.cms-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(255,91,46,.28)}
.cms-card-lead{grid-column:span 2}
.cms-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2)}
.cms-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.cms-card:hover .cms-cover img{transform:scale(1.03)}
.cms-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.cms-title{font-size:18px;line-height:1.45;font-weight:800;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-title a:hover{color:var(--c-primary)}
.cms-desc{
  font-size:14px;line-height:1.8;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-ink-3);padding-top:8px;border-top:1px dashed var(--c-line);
}
.cms-meta .cms-go{color:var(--c-primary);font-weight:700}

/* 空态 */
.empty-state{
  max-width:520px;margin:0 auto;padding:48px 24px;border-radius:var(--r-lg);
  background:var(--c-bg-2);border:1px dashed var(--c-line);text-align:center;
}
.empty-icon{
  width:48px;height:48px;margin:0 auto 16px;border-radius:50%;
  border:2px solid var(--c-ink-3);display:flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--c-ink-3);
}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin-bottom:18px}
.empty-btn{
  display:inline-flex;align-items:center;justify-content:center;height:44px;padding:0 22px;
  border-radius:var(--r-pill);border:1.5px solid rgba(255,91,46,.45);color:var(--c-primary);
  font-size:14px;font-weight:700;transition:background .2s ease;
}
.empty-btn:hover{background:rgba(255,91,46,.08);color:var(--c-primary-dark)}

/* ---------- 口碑条 ---------- */
.voice-strip{
  padding:64px 0;
  background:linear-gradient(135deg,rgba(255,91,46,.07),rgba(138,75,255,.09));
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.voice-scroll{display:flex;gap:20px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory}
.voice-scroll::-webkit-scrollbar{height:6px}
.voice-scroll::-webkit-scrollbar-thumb{background:rgba(255,91,46,.35);border-radius:99px}
.voice-card{
  flex:0 0 300px;background:#fff;border-radius:20px;padding:22px;
  box-shadow:var(--shadow-sm);scroll-snap-align:start;
  display:flex;flex-direction:column;gap:12px;border:1px solid rgba(255,255,255,.7);
}
.voice-head{display:flex;align-items:center;gap:12px}
.voice-avatar{width:40px;height:40px;border-radius:50%;object-fit:cover;aspect-ratio:1/1;background:var(--c-bg-2)}
.voice-name{font-size:14px;font-weight:700}
.voice-tag{font-size:11px;color:var(--c-ink-3)}
.voice-text{font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.faq-accordion .accordion-item:first-child{border-top:1px solid var(--c-line)}
.faq-accordion .accordion-button{
  background:transparent;border:0;box-shadow:none;padding:22px 0;
  font-size:16px;font-weight:800;color:var(--c-ink);line-height:1.6;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-primary);background:transparent;box-shadow:none}
.faq-accordion .accordion-button:focus{box-shadow:none;border:0}
.faq-accordion .accordion-button::after{
  content:"+";background-image:none;transform:none;
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-primary);
  font-size:18px;font-weight:400;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:background .22s ease,color .22s ease,border-color .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"−";background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:none;
}
.faq-accordion .accordion-body{
  padding:0 0 22px 14px;font-size:15px;line-height:1.9;color:var(--c-ink-2);
  border-left:4px solid var(--c-primary);border-radius:0 0 0 2px;
}

/* ---------- CTA 大卡 ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 24px 60px rgba(138,75,255,.24);
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.12);
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-title{font-size:clamp(22px,2.4vw,28px);line-height:1.35;margin-bottom:12px}
.cta-desc{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86);margin-bottom:20px}
.cta-badges{display:flex;gap:10px;flex-wrap:wrap}
.cta-badges span{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.42);font-size:12px;font-weight:600;
}
.cta-card .btn-light-brand{position:relative;z-index:1;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-text{color:#fff;font-size:18px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin-bottom:20px;max-width:320px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
  color:#fff;transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.footer-social a:hover{background:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);color:#fff}
.footer-col h4{font-size:14px;font-weight:800;color:#fff;letter-spacing:.4px;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form .form-control{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;height:48px;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.45)}
.footer-form .form-control:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(255,91,46,.2);background:rgba(255,255,255,.12)}
.footer-form .btn-brand{flex:0 0 auto;padding:0 22px;min-height:48px;box-shadow:none}
.footer-tip{font-size:12px;color:rgba(255,255,255,.42);margin-top:10px;line-height:1.7}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:40px 0 24px}
.footer-bottom{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);line-height:1.8}
.footer-bottom p{max-width:720px}

/* ---------- 吸底条 & 回顶 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--c-line);
  box-shadow:0 -8px 24px rgba(33,26,30,.08);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:14px;min-height:64px;
}
.mobile-bar span{font-size:13px;font-weight:700;color:var(--c-ink)}
.mobile-bar .btn-brand{min-height:44px;padding:0 20px;font-size:14px}
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:65;
  width:48px;height:48px;border-radius:50%;border:0;cursor:pointer;
  background:var(--c-primary);color:#fff;font-size:18px;line-height:1;
  box-shadow:0 12px 26px rgba(255,91,46,.34);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background .2s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-dark)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-inner{gap:36px}
  .stage-card-main{width:250px}
  .stage-card-sm{width:132px}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .nav-cta{margin-left:auto;padding:10px 18px;font-size:14px}
  .nav-inner{min-height:64px;gap:14px}
  .hero{padding:40px 0 72px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-copy{text-align:left}
  .hero-sub{max-width:none}
  .hero-stage{order:2}
  .clip-grid{grid-template-columns:repeat(2,1fr)}
  .cms-grid{grid-template-columns:repeat(2,1fr)}
  .cms-card-lead{grid-column:span 2}
  .check-list{grid-template-columns:1fr;gap:0}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-card .btn-light-brand{width:100%}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .mobile-bar{display:flex}
  body{padding-bottom:80px}
  .to-top{bottom:88px}
}
@media (max-width:767.98px){
  .section{padding:52px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .stage-card-sm{display:none}
  .stage-card-main{width:250px;max-width:78vw}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%}
  .clip-grid{grid-template-columns:1fr}
  .clip-card{aspect-ratio:9/16}
  .cms-grid{grid-template-columns:1fr}
  .cms-card-lead{grid-column:span 1}
  .voice-card{flex:0 0 82%}
  .cta-badges{width:100%}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575.98px){
  .topbar-inner{min-height:34px;font-size:12px}
  .topbar-close{display:none}
  .logo-text{font-size:16px}
  .nav-cta{padding:9px 14px;font-size:13px;min-height:40px}
  .hero-title{font-size:30px}
  .footer-grid{grid-template-columns:1fr}
  .footer-form{flex-direction:column}
  .footer-form .btn-brand{width:100%}
  .voice-strip{padding:48px 0}
}

/* roulang page: category1 */
:root{
  --c-primary:#FF5B2E;
  --c-primary-dark:#E0431A;
  --c-secondary:#5B2A86;
  --c-secondary-lite:#8A4BFF;
  --c-accent:#C8F55A;
  --c-bg:#FFF7F2;
  --c-bg-2:#F6EEE8;
  --c-ink:#211A1E;
  --c-ink-2:#6E6470;
  --c-ink-3:#9A8F98;
  --c-line:#EFE3DA;
  --c-dark:#1C1220;
  --grad-brand:linear-gradient(135deg,#FF5B2E 0%,#8A4BFF 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(33,26,30,.06);
  --shadow-md:0 10px 30px rgba(33,26,30,.10);
  --shadow-lift:0 18px 44px rgba(91,42,134,.16);
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(255,91,46,.45);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.4px;line-height:1.3;}
.section-head .sub{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:640px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-primary);white-space:nowrap;transition:.2s;}
.text-link:hover{color:var(--c-primary-dark);gap:10px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#fff;font-size:13px;height:36px;display:flex;align-items:center;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar p{color:rgba(255,255,255,.86);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px;}
.topbar-close{background:none;border:0;color:rgba(255,255,255,.72);cursor:pointer;font-size:16px;line-height:1;padding:5px 9px;border-radius:8px;transition:.2s;}
.topbar-close:hover{color:#fff;background:rgba(255,255,255,.14);}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,247,242,.93);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s;}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:var(--shadow-sm);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;letter-spacing:-.5px;flex:0 0 auto;}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.2px;color:var(--c-ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-item{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .2s;white-space:nowrap;}
.nav-item::after{content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:0;height:2px;border-radius:2px;background:var(--c-primary);transition:width .22s;}
.nav-item:hover{color:var(--c-primary);}
.nav-item:hover::after{width:16px;}
.nav-item.active{color:var(--c-primary);font-weight:700;}
.nav-item.active::after{width:16px;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-nav{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;font-size:15px;font-weight:700;box-shadow:0 8px 20px rgba(255,91,46,.26);transition:transform .2s,box-shadow .2s;}
.btn-nav:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,91,46,.32);}
.btn-nav:active{transform:translateY(0);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:.2s;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer-cta{display:none;}
.nav-backdrop{position:fixed;inset:0;background:rgba(28,18,32,.42);opacity:0;visibility:hidden;transition:.25s;z-index:1040;}

/* ---------- 按钮 ---------- */
.btn-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;font-weight:700;font-size:15px;border:0;box-shadow:0 10px 24px rgba(255,91,46,.28);transition:transform .2s,box-shadow .2s,filter .2s;cursor:pointer;}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,91,46,.34);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--r-pill);border:1.5px solid var(--c-primary);background:transparent;color:var(--c-primary);font-weight:700;font-size:15px;transition:.2s;cursor:pointer;}
.btn-ghost:hover{background:rgba(255,91,46,.08);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-light{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:var(--r-pill);background:#fff;color:var(--c-primary);font-weight:700;font-size:15px;border:0;box-shadow:0 10px 24px rgba(28,18,32,.16);transition:.2s;cursor:pointer;}
.btn-light:hover{background:#fff;color:var(--c-primary-dark);transform:translateY(-2px);}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:linear-gradient(120deg,rgba(255,91,46,.09) 0%,rgba(138,75,255,.11) 100%);border-bottom:1px solid var(--c-line);}
.cat-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:360px;height:360px;border-radius:50%;background:radial-gradient(circle,rgba(255,91,46,.22),transparent 68%);pointer-events:none;}
.cat-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:56px 0 60px;}
.breadcrumb-row{margin-bottom:18px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"›";color:var(--c-ink-3);font-size:14px;}
.crumb a{color:var(--c-ink-2);transition:color .2s;}
.crumb a:hover{color:var(--c-primary);}
.crumb .here{color:var(--c-ink);font-weight:600;}
.cat-hero h1{font-size:clamp(26px,3.3vw,40px);font-weight:800;line-height:1.22;letter-spacing:-.6px;margin-bottom:16px;}
.cat-hero h1 em{font-style:normal;color:var(--c-primary-dark);}
.hero-lead{font-size:16px;line-height:1.85;color:var(--c-ink-2);max-width:560px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.stat-pill{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);font-size:12px;color:var(--c-ink-2);box-shadow:var(--shadow-sm);}
.stat-pill b{font-size:19px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;line-height:1;}
.stat-pill.accent{background:var(--c-accent);border-color:transparent;color:var(--c-dark);}
.stat-pill.accent b{color:var(--c-dark);}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--shadow-md);}
.hero-figure .float-tag{position:absolute;left:16px;bottom:16px;background:rgba(28,18,32,.82);color:#fff;font-size:12px;font-weight:600;padding:7px 14px;border-radius:var(--r-pill);backdrop-filter:blur(6px);}

/* ---------- 筛选条 ---------- */
.filter-wrap{padding:36px 0 8px;}
.filter-bar{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:none;}
.filter-bar::-webkit-scrollbar{display:none;}
.chip{flex:0 0 auto;padding:9px 20px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:600;white-space:nowrap;transition:.2s;cursor:pointer;}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(255,91,46,.24);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.guide-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s;}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(255,91,46,.28);}
.guide-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2);}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.guide-card:hover .guide-thumb img{transform:scale(1.04);}
.guide-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);font-size:12px;font-weight:700;background:var(--c-bg-2);color:var(--c-secondary);width:fit-content;}
.guide-card h3{font-size:18px;font-weight:700;line-height:1.45;letter-spacing:-.2px;}
.guide-card p{font-size:14px;line-height:1.8;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-ink-3);}
.card-foot a{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--c-primary);font-size:13px;transition:.2s;}
.card-foot a:hover{color:var(--c-primary-dark);gap:10px;}

/* ---------- 分页 ---------- */
.pager{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:40px;flex-wrap:wrap;}
.pager a,.pager span{min-width:44px;height:44px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--c-line);background:#fff;font-size:14px;font-weight:600;color:var(--c-ink-2);transition:.2s;}
.pager a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,91,46,.06);}
.pager .cur{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ---------- 核对流程条 ---------- */
.flow-band{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.step{display:flex;gap:18px;padding:32px 28px 32px 0;border-bottom:1px solid rgba(33,26,30,.08);transition:.2s;}
.step:hover{background:rgba(255,255,255,.55);}
.step-num{font-size:28px;font-weight:800;line-height:1;color:var(--c-secondary-lite);font-variant-numeric:tabular-nums;letter-spacing:-1px;flex:0 0 auto;}
.step h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.step p{font-size:14px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-acc{border:0;background:transparent;}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--c-line);}
.faq-acc .accordion-header{margin:0;}
.faq-acc .accordion-button{position:relative;background:transparent;border:0;box-shadow:none;font-size:16px;font-weight:700;color:var(--c-ink);padding:22px 44px 22px 18px;line-height:1.55;transition:color .2s;}
.faq-acc .accordion-button::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);width:4px;height:60%;border-radius:4px;background:var(--c-primary);transition:transform .25s;}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-primary-dark);}
.faq-acc .accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1);}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 4px rgba(255,91,46,.14);}
.faq-acc .accordion-button::after{position:absolute;right:8px;width:14px;height:14px;background-size:14px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF5B2E'%3E%3Cpath d='M8 1a1 1 0 0 1 1 1v5h5a1 1 0 1 1 0 2H9v5a1 1 0 1 1-2 0V9H2a1 1 0 1 1 0-2h5V2a1 1 0 0 1 1-1z'/%3E%3C/svg%3E");}
.faq-acc .accordion-button:not(.collapsed)::after{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E0431A'%3E%3Cpath d='M2 7h12a1 1 0 1 1 0 2H2a1 1 0 1 1 0-2z'/%3E%3C/svg%3E");}
.faq-acc .accordion-body{padding:0 18px 24px 18px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}

/* ---------- CTA ---------- */
.cta-card{position:relative;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-xl);padding:48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:0 24px 60px rgba(91,42,134,.24);}
.cta-card::after{content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.14);pointer-events:none;}
.cta-card h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.4;letter-spacing:-.3px;margin-bottom:12px;position:relative;z-index:1;}
.cta-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);max-width:520px;position:relative;z-index:1;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;position:relative;z-index:1;}
.badge-ghost{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.5);font-size:12px;color:#fff;}
.cta-card .btn-light{position:relative;z-index:1;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.78);padding:64px 0 32px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr 1.15fr;gap:40px;}
.footer-logo{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;}
.footer-logo .logo-text{font-weight:800;font-size:17px;color:#fff;letter-spacing:-.2px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:20px;}
.footer-social a{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.22);display:grid;place-items:center;font-size:12px;font-weight:700;color:rgba(255,255,255,.82);transition:.2s;}
.footer-social a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66);transition:.2s;}
.footer-links a:hover{color:var(--c-primary);}
.footer-form{display:flex;gap:10px;margin:14px 0 10px;}
.footer-form .form-control{height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;padding:0 14px;box-shadow:none;}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.42);}
.footer-form .form-control:focus{border-color:var(--c-primary);background:rgba(255,255,255,.1);box-shadow:0 0 0 4px rgba(255,91,46,.18);}
.footer-form .btn-brand{padding:0 20px;height:48px;font-size:14px;flex:0 0 auto;}
.footer-tip{font-size:12px;color:rgba(255,255,255,.42);margin-top:6px;}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:44px 0 24px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.48);line-height:1.8;margin:0;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 移动端吸底条 / 回顶 ---------- */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--c-line);box-shadow:0 -8px 24px rgba(33,26,30,.08);}
.mobile-bar span{font-size:13px;font-weight:600;color:var(--c-ink-2);}
.mobile-bar .btn-brand{padding:10px 18px;font-size:14px;}
.to-top{position:fixed;right:24px;bottom:96px;width:48px;height:48px;border-radius:50%;background:var(--c-primary);color:#fff;border:0;display:grid;place-items:center;cursor:pointer;box-shadow:0 12px 28px rgba(255,91,46,.34);opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s;z-index:1035;}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-dark);}
.to-top svg{width:18px;height:18px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.3fr .9fr .9fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .footer-form{max-width:520px;}
}
@media (max-width:991px){
  .header-inner{height:64px;}
  .nav-toggle{display:inline-flex;}
  .btn-nav{display:none;}
  .nav-links{position:fixed;top:0;right:0;width:84%;max-width:340px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;padding:88px 24px 32px;transform:translateX(100%);transition:transform .3s ease;box-shadow:-24px 0 60px rgba(28,18,32,.2);z-index:1050;overflow-y:auto;}
  .nav-links.open{transform:translateX(0);}
  .nav-item{height:56px;display:flex;align-items:center;padding:0 0 0 16px;border-left:3px solid transparent;border-radius:0 12px 12px 0;font-size:16px;}
  .nav-item::after{display:none;}
  .nav-item:hover,.nav-item.active{background:var(--c-bg-2);border-left-color:var(--c-primary);}
  .drawer-cta{display:flex;margin-top:24px;}
  .drawer-cta .btn-brand{width:100%;}
  .nav-backdrop.show{opacity:1;visibility:visible;}
  .cat-hero-inner{grid-template-columns:1fr;gap:32px;padding:40px 0 44px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/9;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .step-list{grid-template-columns:1fr;}
  .step{padding:24px 0;border-bottom:1px solid rgba(33,26,30,.08);}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px;gap:24px;}
  .cta-card .btn-light{width:100%;}
  .mobile-bar{display:flex;}
  body{padding-bottom:80px;}
  .to-top{bottom:104px;right:16px;}
  .section{padding:56px 0;}
}
@media (max-width:767px){
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .topbar-close{display:none;}
  .topbar p{font-size:12px;}
  .pager a,.pager span{min-width:40px;height:40px;font-size:13px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .hero-pills{gap:8px;}
  .stat-pill{height:30px;padding:0 12px;}
  .stat-pill b{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-form{flex-direction:column;}
  .footer-form .btn-brand{width:100%;}
  .cta-card{padding:30px 22px;border-radius:var(--r-lg);}
  .guide-body{padding:18px;}
  .faq-acc .accordion-button{font-size:15px;padding:18px 40px 18px 16px;}
}

/* roulang page: article */
:root{
  --c-primary:#FF5B2E;
  --c-primary-dark:#E0431A;
  --c-secondary:#5B2A86;
  --c-secondary-lite:#8A4BFF;
  --c-accent:#C8F55A;
  --c-bg:#FFF7F2;
  --c-bg-2:#F6EEE8;
  --c-ink:#211A1E;
  --c-ink-2:#6E6470;
  --c-ink-3:#9A8F98;
  --c-line:#EFE3DA;
  --c-dark:#1C1220;
  --grad-brand:linear-gradient(135deg,#FF5B2E 0%,#8A4BFF 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(33,26,30,.06);
  --shadow-md:0 10px 30px rgba(33,26,30,.10);
  --shadow-lift:0 18px 44px rgba(91,42,134,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---- Bootstrap 覆盖 ---- */
.btn{border-radius:var(--r-pill);font-weight:600;border:0}
.btn-primary{
  --bs-btn-bg:var(--c-primary);
  --bs-btn-border-color:var(--c-primary);
  --bs-btn-hover-bg:var(--c-primary-dark);
  --bs-btn-hover-border-color:var(--c-primary-dark);
  --bs-btn-active-bg:var(--c-primary-dark);
  --bs-btn-active-border-color:var(--c-primary-dark);
  --bs-btn-color:#fff;
  --bs-btn-hover-color:#fff;
  --bs-btn-border-radius:999px;
}
.card{border:0;border-radius:var(--r-lg);box-shadow:none;background:#fff}
.badge{border-radius:var(--r-pill);font-weight:600;letter-spacing:.2px}
.breadcrumb{background:none;padding:0;margin:0}
.form-control{
  height:48px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink);
  font-size:14px;
  box-shadow:none;
}
.form-control::placeholder{color:var(--c-ink-3)}
.form-control:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,91,46,.16);
  background:#fff;
  color:var(--c-ink);
}

/* ---- 顶部信息条 ---- */
.topbar{background:var(--c-dark);color:rgba(255,255,255,.86);font-size:13px}
.topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar p{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-close{background:none;border:0;color:rgba(255,255,255,.6);font-size:17px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:6px;transition:color .2s}
.topbar-close:hover{color:#fff}

/* ---- Header ---- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,247,242,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:0 6px 20px rgba(33,26,30,.05)}
.header-inner{height:72px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.2px;white-space:nowrap;color:var(--c-ink)}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--grad-brand);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800;flex:0 0 auto}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-item{position:relative;font-size:15px;font-weight:500;color:var(--c-ink);padding:6px 0;white-space:nowrap}
.nav-item::after{content:"";position:absolute;left:50%;bottom:-4px;width:0;height:2px;border-radius:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .22s ease}
.nav-item:hover{color:var(--c-primary)}
.nav-item:hover::after{width:16px}
.nav-item.active{color:var(--c-primary);font-weight:600}
.nav-item.active::after{width:16px}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:14px;
  border:0;box-shadow:var(--shadow-sm);white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);color:#fff}
.btn-brand:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:.2s}
.nav-mask{
  position:fixed;inset:0;background:rgba(28,18,32,.42);backdrop-filter:blur(2px);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:999;
}
.nav-mask.show{opacity:1;pointer-events:auto}

/* ---- 面包屑 ---- */
.crumb{padding:22px 0 0}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--c-ink-3)}
.crumb-list li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb-list li+li::before{
  content:"";width:5px;height:5px;flex:0 0 auto;
  border-top:1.5px solid var(--c-ink-3);border-right:1.5px solid var(--c-ink-3);
  transform:rotate(45deg);
}
.crumb-list a{color:var(--c-ink-2)}
.crumb-list a:hover{color:var(--c-primary)}
.crumb-list li[aria-current]{color:var(--c-ink-3);max-width:56vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---- 文章头 ---- */
.article-head{padding:20px 0 0}
.chip{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(255,91,46,.12);color:var(--c-primary-dark);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.article-head h1{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.32;font-weight:800;letter-spacing:-.3px;
  color:var(--c-ink);margin:16px 0 14px;max-width:900px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-3)}
.meta span{display:inline-flex;align-items:center}
.meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-ink-3);opacity:.7}
.head-rule{width:120px;height:2px;border-radius:2px;background:var(--grad-brand);margin-top:22px}

/* ---- 布局 ---- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;align-items:start;
  padding:34px 0 0;
}
.article-main{min-width:0}

/* ---- 正文 ---- */
.article-body{
  max-width:820px;font-size:16px;line-height:1.9;color:var(--c-ink-2);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:22px;line-height:1.45;font-weight:800;color:var(--c-ink);
  margin:36px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);
}
.article-body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--c-ink);margin:26px 0 12px}
.article-body h4{font-size:16px;font-weight:700;color:var(--c-ink);margin:20px 0 10px}
.article-body ul,.article-body ol{padding-left:1.4em;margin:0 0 18px}
.article-body li{margin:6px 0;line-height:1.85}
.article-body a{color:var(--c-primary-dark);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-secondary)}
.article-body strong{color:var(--c-ink)}
.article-body img{border-radius:var(--r-md);margin:20px 0 10px;width:100%;height:auto;object-fit:cover}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--c-bg-2);color:var(--c-ink-2);
  border-left:4px solid var(--c-secondary-lite);
  border-radius:0 16px 16px 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;min-width:480px}
.table-wrap{overflow-x:auto;margin:22px 0;border-radius:var(--r-md);border:1px solid var(--c-line)}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--c-line);text-align:left;line-height:1.7}
.article-body thead th{background:var(--c-bg-2);color:var(--c-ink);font-weight:600}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body pre{
  background:#F6EEE8;border-radius:var(--r-sm);padding:16px;overflow-x:auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;line-height:1.7;color:var(--c-ink);margin:20px 0;
}
.article-body code{
  background:#F6EEE8;border-radius:6px;padding:2px 6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13.5px;color:var(--c-secondary);
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:28px 0}

/* ---- 空态 ---- */
.empty-state{
  max-width:520px;margin:8px 0;padding:48px 24px;text-align:center;
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-lg);
}
.empty-icon{width:48px;height:48px;margin:0 auto 16px;color:var(--c-ink-3)}
.empty-state p{font-size:15px;color:var(--c-ink-2);margin:0 0 20px}

/* ---- 标签行 ---- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 0;padding-top:24px;border-top:1px solid var(--c-line);max-width:820px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-bg-2);color:var(--c-ink-2);font-size:14px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.tag:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.back-row{margin-top:24px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  border:1px solid var(--c-primary);color:var(--c-primary-dark);
  font-size:14px;font-weight:600;background:transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ---- FAQ ---- */
.faq-block{max-width:820px;margin:56px 0 0}
.faq-title{font-size:22px;font-weight:800;color:var(--c-ink);margin:0 0 8px;letter-spacing:-.2px}
.faq-sub{font-size:15px;color:var(--c-ink-2);margin:0 0 18px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;font-size:16px;font-weight:600;color:var(--c-ink);transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .plus{
  position:relative;width:18px;height:18px;flex:0 0 auto;
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease;
}
.faq-item summary .plus::before{width:14px;height:2px}
.faq-item summary .plus::after{width:2px;height:14px}
.faq-item[open] summary{color:var(--c-primary-dark)}
.faq-item[open] summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-body{
  padding:0 0 18px 14px;margin-bottom:4px;
  border-left:4px solid var(--c-primary);
  font-size:15px;line-height:1.9;color:var(--c-ink-2);
}
.faq-body p:last-child{margin-bottom:0}

/* ---- 相关推荐 ---- */
.related{margin:56px 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.sec-head h2{font-size:22px;font-weight:800;color:var(--c-ink);letter-spacing:-.2px}
.sec-more{font-size:14px;font-weight:600;color:var(--c-primary-dark)}
.sec-more:hover{color:var(--c-secondary)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--c-line);border-radius:20px;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:transparent}
.rel-card .thumb{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .thumb{transform:scale(1.03)}
.rel-thumb-box{overflow:hidden}
.rel-body{padding:16px 18px 18px}
.rel-body h3{
  font-size:15px;line-height:1.5;font-weight:700;color:var(--c-ink);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover h3{color:var(--c-primary)}
.rel-meta{font-size:12.5px;color:var(--c-ink-3);display:flex;align-items:center;justify-content:space-between;gap:8px}

/* ---- 上一篇 / 下一篇 ---- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0 0;max-width:820px}
.pager a{
  display:block;padding:16px 18px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-md);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pager a:hover{border-color:var(--c-primary);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.pager .dir{display:block;font-size:12px;color:var(--c-ink-3);margin-bottom:6px}
.pager .ttl{
  display:block;font-size:15px;font-weight:600;color:var(--c-ink);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* ---- 侧栏 ---- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-sm);
}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--c-ink);margin:0 0 12px}
.side-title::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-brand)}
.side-note{font-size:13.5px;line-height:1.8;color:var(--c-ink-2);margin:0 0 16px}
.side-cta{display:block;text-align:center;height:44px;line-height:44px;border-radius:var(--r-pill);background:var(--grad-brand);color:#fff;font-size:14px;font-weight:700;transition:transform .2s ease,box-shadow .2s ease}
.side-cta:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);color:#fff}
.rank-list{list-style:none;display:flex;flex-direction:column}
.rank-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.rank-item:last-child{border-bottom:0;padding-bottom:0}
.rank-item:first-child{padding-top:0}
.rank-num{font-size:20px;font-weight:800;line-height:1.25;color:var(--c-secondary-lite);font-variant-numeric:tabular-nums;flex:0 0 auto}
.rank-link{
  font-size:14px;line-height:1.55;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-link:hover{color:var(--c-primary)}

/* ---- 底部转化卡 ---- */
.cta-card{
  position:relative;overflow:hidden;
  margin:64px 0 0;padding:48px;border-radius:var(--r-xl);
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.12);pointer-events:none;
}
.cta-card h2{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.4;color:#fff;margin:0 0 10px;letter-spacing:-.2px}
.cta-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);max-width:560px;margin:0}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.cta-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.5);font-size:12px;color:#fff;
}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  background:#fff;color:var(--c-primary-dark);font-weight:700;font-size:15px;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(28,18,32,.22);color:var(--c-primary-dark)}

/* ---- 页脚 ---- */
.site-footer{background:var(--c-dark);color:#fff;padding:64px 0 32px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-text{font-size:16px;font-weight:800;letter-spacing:-.2px;white-space:nowrap}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0 0 18px;max-width:330px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);display:grid;place-items:center;
  font-size:12px;color:rgba(255,255,255,.8);
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.footer-social a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:var(--c-primary)}
.footer-form{display:flex;gap:10px;margin:14px 0 10px}
.footer-form .form-control{
  height:48px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.45)}
.footer-form .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,91,46,.18);
  color:#fff;
}
.footer-form .btn-brand{height:48px;padding:0 20px}
.footer-tip{font-size:12px;color:rgba(255,255,255,.45);margin:0;line-height:1.7}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:40px 0 24px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom p{margin:0;line-height:1.8}
.footer-bottom p:first-child{max-width:660px}

/* ---- 回到顶部 ---- */
.to-top{
  position:fixed;right:24px;bottom:88px;z-index:940;
  width:48px;height:48px;border-radius:50%;border:0;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;
  cursor:pointer;box-shadow:var(--shadow-md);
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-dark)}

/* ---- 移动端吸底条 ---- */
.mobile-bar{display:none}
.mobile-bar p{margin:0;font-size:13px;color:var(--c-ink-2);line-height:1.4}
.mobile-bar .btn-brand{height:40px;padding:0 18px;font-size:13px}

/* ---- 响应式 ---- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static}
  .article-side .rank-list{flex-direction:row;overflow-x:auto;gap:14px;padding-bottom:4px;scrollbar-width:thin}
  .article-side .rank-item{
    min-width:240px;border-bottom:0;border-left:3px solid var(--c-line);
    padding:4px 0 4px 12px;
  }
  .article-side .rank-item:first-child{padding-top:4px}
}
@media (max-width:991px){
  .header-inner{height:64px;gap:14px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;left:auto;
    width:84%;max-width:340px;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:88px 24px 32px;
    background:#fff;box-shadow:-20px 0 60px rgba(33,26,30,.16);
    transform:translateX(100%);transition:transform .3s ease;
    z-index:1000;overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-item{width:100%;padding:16px 0;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-item::after{display:none}
  .nav-item.active{border-left:3px solid var(--c-primary);padding-left:14px;color:var(--c-primary)}
  .article-side .side-card{padding:20px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mobile-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:950;
    align-items:center;justify-content:space-between;gap:12px;
    background:#fff;border-top:1px solid var(--c-line);
    box-shadow:0 -8px 24px rgba(33,26,30,.08);
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  }
  body{padding-bottom:80px}
  .to-top{bottom:88px;right:16px}
  .cta-card{padding:32px 24px;flex-direction:column;align-items:flex-start}
  .cta-card .btn-light{width:100%}
}
@media (max-width:767px){
  .article-layout{padding-top:26px}
  .article-head h1{-webkit-line-clamp:unset}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .pager{grid-template-columns:minmax(0,1fr)}
  .article-body h2{font-size:20px;margin-top:30px}
  .article-body h3{font-size:17px}
  .faq-title{font-size:20px}
  .sec-head h2{font-size:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding:48px 0 28px;margin-top:56px}
  .footer-bottom{flex-direction:column;gap:10px}
  .article-body ul,.article-body ol{padding-left:1.2em}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .topbar-close{display:none}
  .brand{font-size:14px;gap:8px}
  .logo-mark{width:28px;height:28px;border-radius:9px;font-size:14px}
  .header-actions .btn-brand{height:38px;padding:0 14px;font-size:13px}
  .nav-toggle{width:40px;height:40px}
  .article-head h1{font-size:22px}
  .crumb-list li[aria-current]{max-width:46vw}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-form{flex-direction:column}
  .footer-form .btn-brand{width:100%}
  .tag{font-size:13px;height:30px}
  .cta-badges{gap:8px}
}

/* roulang page: category2 */
:root{
  --c-primary:#FF5B2E;
  --c-primary-dark:#E0431A;
  --c-secondary:#5B2A86;
  --c-secondary-lite:#8A4BFF;
  --c-accent:#C8F55A;
  --c-bg:#FFF7F2;
  --c-bg-2:#F6EEE8;
  --c-ink:#211A1E;
  --c-ink-2:#6E6470;
  --c-ink-3:#9A8F98;
  --c-line:#EFE3DA;
  --c-dark:#1C1220;
  --grad-brand:linear-gradient(135deg,#FF5B2E 0%,#8A4BFF 100%);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --shadow-sm:0 2px 8px rgba(33,26,30,.06);
  --shadow-md:0 10px 30px rgba(33,26,30,.10);
  --shadow-lift:0 18px 44px rgba(91,42,134,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 顶部信息条 ---------- */
.top-bar{background:var(--c-dark);color:rgba(255,255,255,.82);font-size:13px;}
.top-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.top-bar p{margin:0;letter-spacing:.2px;}
.top-bar-close{
  border:0;background:transparent;color:rgba(255,255,255,.6);
  font-size:18px;line-height:1;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;transition:.2s;
}
.top-bar-close:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:rgba(255,247,242,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s,box-shadow .25s;
}
.site-header.scrolled{border-bottom-color:var(--c-line);box-shadow:var(--shadow-sm);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:16px;display:grid;place-items:center;flex-shrink:0;
}
.logo-text{font-weight:800;font-size:17px;letter-spacing:-.2px;white-space:nowrap;color:var(--c-ink);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-item{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:8px 0;transition:color .2s;white-space:nowrap;
}
.nav-item::after{
  content:"";position:absolute;left:50%;bottom:0;width:16px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:translateX(-50%) scaleX(0);transition:transform .2s;
}
.nav-item:hover,.nav-item.active{color:var(--c-primary);}
.nav-item:hover::after,.nav-item.active::after{transform:translateX(-50%) scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;border:0;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  box-shadow:var(--shadow-sm);cursor:pointer;
  transition:transform .2s,box-shadow .2s,filter .2s;min-height:44px;
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);color:#fff;filter:saturate(1.05);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  padding:11px 22px;border-radius:var(--r-pill);
  border:1.5px solid rgba(255,91,46,.45);color:var(--c-primary);
  background:transparent;font-size:15px;font-weight:600;cursor:pointer;min-height:44px;
  transition:background .2s,border-color .2s,transform .2s;
}
.btn-ghost:hover{background:rgba(255,91,46,.08);border-color:var(--c-primary);transform:translateY(-2px);}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 28px;border-radius:var(--r-pill);background:#fff;color:var(--c-primary-dark);
  font-size:15px;font-weight:700;border:0;cursor:pointer;min-height:48px;
  box-shadow:0 10px 26px rgba(28,18,32,.18);transition:transform .2s,box-shadow .2s;
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(28,18,32,.24);color:var(--c-primary-dark);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);cursor:pointer;place-items:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(28,18,32,.45);
  opacity:0;visibility:hidden;transition:.3s;z-index:1100;
}
.drawer-overlay.open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:84%;max-width:360px;
  background:#fff;z-index:1200;transform:translateX(100%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;
  box-shadow:-16px 0 44px rgba(28,18,32,.16);
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--c-line);}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;font-size:20px;line-height:1;color:var(--c-ink-2);cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-link{
  display:flex;align-items:center;min-height:56px;font-size:16px;font-weight:500;
  color:var(--c-ink);border-bottom:1px solid var(--c-line);border-left:3px solid transparent;
  padding-left:14px;transition:.2s;
}
.drawer-link:hover{color:var(--c-primary);}
.drawer-link.active{color:var(--c-primary);border-left-color:var(--c-primary);font-weight:700;}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  background:var(--c-dark);color:#fff;
  padding:72px 0 84px;
}
.hero-glow{position:absolute;border-radius:50%;pointer-events:none;filter:blur(90px);}
.hero-glow-1{
  width:460px;height:460px;top:-160px;right:-120px;opacity:.55;
  background:radial-gradient(circle,#8A4BFF 0%,rgba(138,75,255,0) 70%);
}
.hero-glow-2{
  width:380px;height:380px;bottom:-180px;left:-120px;opacity:.4;
  background:radial-gradient(circle,#FF5B2E 0%,rgba(255,91,46,0) 70%);
}
.cat-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  aspect-ratio:16/11;border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 60px rgba(0,0,0,.35);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media-badge{
  position:absolute;left:16px;bottom:16px;
  background:var(--c-accent);color:#1C1220;
  font-size:12px;font-weight:700;padding:6px 14px;border-radius:var(--r-pill);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:rgba(200,245,90,.14);color:var(--c-accent);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.cat-hero h1{
  font-size:clamp(28px,3.4vw,42px);
  font-weight:800;line-height:1.22;letter-spacing:-.5px;
  color:#fff;margin:18px 0 16px;
}
.hero-sub{
  font-size:16px;line-height:1.9;color:rgba(255,255,255,.74);
  max-width:560px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hbadge{
  display:inline-flex;align-items:center;gap:6px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.88);font-size:12px;letter-spacing:.2px;
}
.hbadge b{font-size:16px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-actions .btn-ghost{border-color:rgba(255,255,255,.32);color:#fff;}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;}

/* ---------- 主体 ---------- */
.cat-body{padding:72px 0 24px;}
.body-grid{display:grid;grid-template-columns:240px 1fr;gap:44px;align-items:start;}
.toc-panel{position:sticky;top:96px;}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:1px;color:var(--c-ink-3);
  text-transform:uppercase;margin-bottom:14px;padding-left:14px;
}
.toc-nav{display:flex;flex-direction:column;gap:2px;}
.toc-item{
  display:block;padding:11px 14px;font-size:14px;color:var(--c-ink-2);
  border-left:3px solid transparent;border-radius:0 10px 10px 0;
  transition:color .2s,background .2s,border-color .2s;line-height:1.5;
}
.toc-item:hover{color:var(--c-primary);background:rgba(255,91,46,.06);}
.toc-item.active{
  color:var(--c-primary);font-weight:700;border-left-color:var(--c-primary);
  background:rgba(255,91,46,.07);
}
.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.topic-card{
  display:flex;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:#F5D8C9;}
.topic-media{
  position:relative;width:38%;flex:0 0 38%;min-height:200px;overflow:hidden;
  background:var(--c-bg-2);
}
.topic-media img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .45s ease;
}
.topic-card:hover .topic-media img{transform:scale(1.05);}
.topic-body{padding:20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.chip{
  align-self:flex-start;display:inline-block;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-bg-2);color:var(--c-secondary);
  font-size:12px;font-weight:600;letter-spacing:.2px;
}
.topic-body h3{
  font-size:16px;font-weight:700;line-height:1.5;color:var(--c-ink);
  transition:color .2s;
}
.topic-card:hover .topic-body h3{color:var(--c-primary);}
.topic-body p{font-size:13.5px;line-height:1.82;color:var(--c-ink-2);}
.topic-meta{
  margin-top:auto;display:flex;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--c-ink-3);padding-top:6px;
}

/* ---------- FAQ ---------- */
.faq-section{padding:72px 0 8px;}
.section-head{max-width:640px;margin-bottom:36px;}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.3px;
  line-height:1.3;color:var(--c-ink);margin-bottom:12px;
}
.section-head p{font-size:15px;line-height:1.85;color:var(--c-ink-2);}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;
  gap:18px;padding:22px 0;font-size:16px;font-weight:600;line-height:1.6;color:var(--c-ink);
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:20px;font-weight:400;line-height:1.2;
  color:var(--c-primary);transition:transform .25s;
}
.faq-item[open] summary::after{content:"−";}
.faq-answer{
  font-size:15px;line-height:1.9;color:var(--c-ink-2);
  padding:0 0 22px 0;border-left:0;
  animation:fadeIn .25s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* ---------- CTA ---------- */
.cta-wrap{padding:56px 0 8px;}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-xl);
  padding:48px;display:flex;align-items:center;justify-content:space-between;
  gap:36px;color:#fff;box-shadow:var(--shadow-lift);
}
.cta-card::after{
  content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  right:-90px;top:-140px;background:rgba(255,255,255,.12);
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{font-size:clamp(21px,2.2vw,27px);font-weight:800;line-height:1.35;margin-bottom:12px;color:#fff;}
.cta-text p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.86);}
.cta-card .btn-light{position:relative;z-index:2;flex-shrink:0;}

/* ---------- 信息条 ---------- */
.info-section{padding:64px 0 0;}
.info-bars{display:flex;flex-direction:column;border-top:1px solid var(--c-line);}
.info-bar{
  display:flex;gap:28px;align-items:flex-start;
  padding:28px 8px;border-bottom:1px solid var(--c-line);
  transition:background .2s,padding-left .2s;
}
.info-bar:hover{background:rgba(255,255,255,.6);padding-left:16px;}
.info-num{
  font-size:22px;font-weight:800;line-height:1.3;min-width:48px;
  color:var(--c-secondary-lite);font-variant-numeric:tabular-nums;
}
.info-content h3{font-size:16px;font-weight:700;margin-bottom:6px;color:var(--c-ink);}
.info-content p{font-size:14px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;width:48px;height:48px;border-radius:50%;
  background:var(--c-primary);color:#fff;border:0;display:grid;place-items:center;
  font-size:18px;cursor:pointer;box-shadow:0 12px 28px rgba(255,91,46,.36);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:.28s;z-index:800;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-dark);}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--c-dark);color:rgba(255,255,255,.7);
  padding:64px 0 32px;margin-top:88px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:44px;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-logo .logo-text{color:#fff;font-size:16px;font-weight:800;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.18);
  display:grid;place-items:center;font-size:12px;color:rgba(255,255,255,.78);
  transition:border-color .2s,color .2s,background .2s;
}
.footer-social a:hover{border-color:var(--c-primary);color:var(--c-primary);background:rgba(255,91,46,.1);}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.2px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.64);transition:color .2s;}
.footer-links a:hover{color:var(--c-primary);}
.footer-form{display:flex;gap:10px;margin-bottom:12px;}
.footer-form .form-control{
  height:46px;border-radius:var(--r-sm);font-size:14px;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;
  box-shadow:none;transition:border-color .2s,box-shadow .2s,background .2s;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.4);}
.footer-form .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(255,91,46,.18);
  color:#fff;
}
.footer-form .btn-brand{padding:0 20px;font-size:14px;height:46px;min-height:46px;white-space:nowrap;}
.footer-tip{font-size:12px;color:rgba(255,255,255,.42);line-height:1.7;}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:44px 0 24px;}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.footer-bottom p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.45);max-width:620px;margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .body-grid{grid-template-columns:210px 1fr;gap:32px;}
  .topic-list{grid-template-columns:1fr;}
  .topic-media{width:34%;flex:0 0 34%;}
  .hero-grid{gap:36px;}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{max-width:520px;aspect-ratio:16/9;}
  .cat-hero{padding:48px 0 56px;}
  .body-grid{grid-template-columns:1fr;gap:24px;}
  .toc-panel{position:static;}
  .toc-title{display:none;}
  .toc-nav{flex-direction:row;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;}
  .toc-nav::-webkit-scrollbar{display:none;}
  .toc-item{
    flex:0 0 auto;border-left:0;border:1px solid var(--c-line);border-radius:var(--r-pill);
    padding:9px 18px;white-space:nowrap;background:#fff;font-size:13.5px;
  }
  .toc-item.active{border-color:var(--c-primary);background:var(--c-primary);color:#fff;}
  .faq-grid{grid-template-columns:1fr;gap:0;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-card .btn-light{width:100%;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .cat-body{padding-top:48px;}
  .faq-section,.info-section{padding-top:52px;}
}
@media (max-width:767.98px){
  .header-inner{height:64px;gap:12px;}
  .logo-text{font-size:15px;}
  .header-cta{padding:10px 16px;font-size:13.5px;min-height:40px;}
  .cat-hero h1{font-size:clamp(25px,6vw,32px);}
  .hero-sub{font-size:15px;}
  .topic-card{flex-direction:column;}
  .topic-media{width:100%;flex:0 0 auto;min-height:0;aspect-ratio:16/9;}
  .topic-list{gap:20px;}
  .cta-card{padding:32px 22px;border-radius:var(--r-lg);}
  .info-bar{gap:18px;padding:22px 4px;}
  .info-num{font-size:19px;min-width:36px;}
  .site-footer{margin-top:64px;padding-top:52px;}
  .footer-bottom{flex-direction:column;gap:10px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{flex:1 1 100%;}
}
@media (max-width:575.98px){
  .top-bar-close{display:none;}
  .top-bar-inner{justify-content:flex-start;}
  .top-bar p{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .container{padding-left:16px;padding-right:16px;}
  .logo-text{font-size:14px;}
  .logo-mark{width:28px;height:28px;border-radius:9px;font-size:14px;}
  .header-cta{padding:8px 12px;font-size:12.5px;min-height:36px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn-brand{width:100%;}
  .cta-text h2{font-size:20px;}
  .faq-item summary{font-size:15px;padding:18px 0;}
  .to-top{right:16px;bottom:20px;width:44px;height:44px;}
}