/* roulang page: index */
:root{
  --ink:#0B2A22; --ink-2:#12463A; --ink-3:#1B5A49;
  --lime:#C9F24D; --lime-h:#D8FF6B; --lime-a:#B4DE3C;
  --coral:#FF5B3A;
  --bg:#F5F6F1; --card:#FFFFFF; --card-dark:#10231D;
  --text:#14201C; --text-2:#55635C; --text-3:#8A968F;
  --line:#E4E8E0; --soft:#F0F3EA; --skeleton:#EDF0E8;
  --r-card:18px; --r-lg:24px; --r-btn:999px; --r-tag:6px;
  --sh1:0 1px 2px rgba(11,42,34,.06), 0 8px 24px rgba(11,42,34,.06);
  --sh2:0 14px 36px rgba(11,42,34,.12);
  --sect:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.9;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .15s ease,background-color .15s ease,border-color .15s ease;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,monospace;}
.section{padding:var(--sect) 0;}
.section-tight{padding:56px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{font-size:26px;font-weight:700;line-height:1.4;letter-spacing:.2px;}
.sec-desc{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:8px;max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink-3);background:var(--soft);border-radius:var(--r-tag);padding:5px 10px;letter-spacing:.4px;}
.link-more{font-size:15px;font-weight:600;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;}
.link-more:hover{color:var(--ink-2);border-color:var(--ink-2);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(11,42,34,.94);
  backdrop-filter:saturate(140%) blur(6px);
  transition:height .25s ease,background-color .25s ease,box-shadow .25s ease;
  height:68px;
}
.site-header.is-scrolled{height:56px;background:#0B2A22;box-shadow:0 8px 24px rgba(11,42,34,.24);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--lime),#7FCF2E);
  display:flex;align-items:center;justify-content:center;color:var(--ink);font-weight:700;font-size:16px;
}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text b{color:#fff;font-size:17px;font-weight:700;letter-spacing:.3px;transition:font-size .25s ease;}
.logo-text span{color:rgba(255,255,255,.6);font-size:11px;letter-spacing:1.6px;text-transform:uppercase;}
.is-scrolled .logo-text b{font-size:15px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;color:rgba(255,255,255,.78);font-size:15px;font-weight:400;padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .15s ease;border-radius:2px;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--lime);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.18);transition:all .15s ease;
}
.nav-search:hover{color:var(--lime);border-color:var(--lime);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);
  font-weight:700;font-size:15px;padding:12px 24px;transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,color .15s ease,border-color .15s ease;}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--lime-h);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;background:var(--lime-a);}
.btn-outline{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-outline:active{transform:translateY(1px);box-shadow:none;}
.btn-on-dark{border:1px solid rgba(255,255,255,.45);color:#fff;background:transparent;}
.btn-on-dark:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-ghost{color:var(--ink);border-bottom:2px solid var(--lime);border-radius:0;padding:4px 0;font-weight:600;}
.btn-ghost:hover{color:var(--ink-3);}
.btn:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed;}
.btn-sm{padding:9px 18px;font-size:14px;}
.nav-cta{padding:10px 20px;font-size:14px;}
.burger{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  align-items:center;justify-content:center;color:#fff;font-size:17px;}
.burger:hover{border-color:var(--lime);color:var(--lime);}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink);color:#fff;
  transform:translateY(-100%);transition:transform .3s ease;display:flex;flex-direction:column;padding:22px 24px 32px;
}
.drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);color:#fff;display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{border-color:var(--lime);color:var(--lime);}
.drawer nav a{display:block;font-size:18px;line-height:56px;border-bottom:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.86);}
.drawer nav a:hover,.drawer nav a.active{color:var(--lime);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* ---------- Hero ---------- */
.hero{padding:132px 0 64px;background:
  radial-gradient(900px 460px at 84% 8%, rgba(201,242,77,.14), transparent 62%),
  linear-gradient(180deg,#0B2A22 0%,#0B2A22 62%,#F5F6F1 62%,#F5F6F1 100%);
}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center;}
.hero-copy h1{
  color:#fff;font-size:40px;line-height:1.25;font-weight:700;letter-spacing:.2px;
}
.hero-copy h1 em{font-style:normal;color:var(--lime);}
.hero-sub{color:rgba(255,255,255,.76);font-size:17px;line-height:1.9;margin-top:20px;max-width:520px;}
.hero-actions{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap;}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px;}
.hero-tags span{
  font-size:13px;color:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-tag);padding:5px 10px;
}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh2);
  aspect-ratio:9/16;max-height:560px;background:var(--skeleton);}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(11,42,34,.85) 0%,rgba(11,42,34,.18) 46%,rgba(11,42,34,0) 74%);}
.hero-visual .vp-badge{
  position:absolute;left:18px;bottom:18px;z-index:2;display:flex;align-items:center;gap:10px;
  color:#fff;font-size:13px;background:rgba(11,42,34,.62);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-btn);padding:8px 14px;
}
.hero-visual .vp-badge i{color:var(--lime);}
.hero-visual .mute{
  position:absolute;right:18px;bottom:18px;z-index:2;width:42px;height:42px;border-radius:50%;
  background:rgba(11,42,34,.62);border:1px solid rgba(255,255,255,.24);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.hero-visual .mute:hover{color:var(--lime);border-color:var(--lime);}
.stat-strip{margin-top:72px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item b{display:block;font-size:28px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.stat-item span{display:block;color:var(--text-2);font-size:14px;margin-top:6px;}

/* ---------- 通用卡片 ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D6DCD2;}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--ink-3);
  background:var(--soft);border-radius:var(--r-tag);padding:4px 9px;}
.tag-coral{background:#FFF1EC;color:#C33A1E;border:1px solid rgba(255,91,58,.35);}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 横滑轨道 ---------- */
.rail-wrap{position:relative;}
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;}
.rail::-webkit-scrollbar{display:none;}
.rail>*{scroll-snap-align:start;}
.rail-btn{
  position:absolute;top:calc(50% - 34px);width:44px;height:44px;border-radius:50%;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh1);color:var(--ink);display:flex;align-items:center;justify-content:center;z-index:5;
}
.rail-btn:hover{background:var(--lime);border-color:var(--lime);}
.rail-btn.prev{left:-14px;}
.rail-btn.next{right:-14px;}
.clip-card{flex:0 0 260px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease;}
.clip-card:hover{transform:translateY(-2px) scale(1.02);box-shadow:var(--sh2);}
.clip-thumb{position:relative;aspect-ratio:9/16;background:var(--skeleton);overflow:hidden;}
.clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.clip-card:hover .clip-thumb img{transform:scale(1.05);}
.clip-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:48px;height:48px;border-radius:50%;
  background:rgba(11,42,34,.6);border:1px solid rgba(255,255,255,.4);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;}
.clip-time{position:absolute;right:10px;bottom:10px;background:var(--coral);color:#fff;font-size:12px;font-weight:600;
  border-radius:var(--r-btn);padding:3px 9px;}
.clip-body{padding:14px 16px 18px;}
.clip-body h3{font-size:17px;font-weight:600;line-height:1.5;}
.clip-body p{color:var(--text-3);font-size:13px;margin-top:8px;}

/* ---------- 编号清单 ---------- */
.pick-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1);}
.pick-row{display:grid;grid-template-columns:78px 1fr 96px;gap:20px;align-items:center;padding:22px 26px;
  border-bottom:1px solid var(--line);transition:background-color .18s ease;}
.pick-row:last-child{border-bottom:0;}
.pick-row:hover{background:var(--soft);}
.pick-num{font-size:32px;font-weight:700;color:var(--lime);-webkit-text-stroke:1px var(--ink);letter-spacing:1px;}
.pick-main h3{font-size:19px;font-weight:600;line-height:1.5;}
.pick-main p{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:6px;}
.pick-thumb{width:96px;height:96px;border-radius:14px;overflow:hidden;background:var(--skeleton);}
.pick-thumb img{width:100%;height:100%;object-fit:cover;}

/* ---------- 口碑 ---------- */
.voice-card{flex:0 0 300px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh1);transition:box-shadow .18s ease,transform .18s ease;}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.voice-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--ink);color:var(--lime);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.voice-name{font-size:14px;font-weight:600;}
.voice-role{font-size:12px;color:var(--text-3);}
.voice-card p{font-size:15px;line-height:1.85;color:var(--text-2);}
.dots{display:flex;gap:8px;justify-content:center;margin-top:6px;}
.dots i{width:8px;height:8px;border-radius:50%;background:#D3D9CE;display:block;}
.dots i.on{background:var(--lime);box-shadow:0 0 0 3px rgba(201,242,77,.28);}

/* ---------- 深色 CTA ---------- */
.cta-band{background:var(--ink);border-radius:var(--r-lg);padding:64px 56px;color:#fff;
  display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;}
.cta-band p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.9;margin-top:12px;max-width:620px;}
.cta-side{display:flex;align-items:center;gap:20px;}
.qr{width:80px;height:80px;border:1px dashed rgba(255,255,255,.5);border-radius:14px;display:flex;
  align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:12px;text-align:center;line-height:1.4;}

/* ---------- 资讯网格 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease;}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);}
.post-thumb{aspect-ratio:16/10;background:var(--skeleton);overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:18px;font-weight:600;line-height:1.5;}
.post-body p{font-size:15px;line-height:1.85;color:var(--text-2);margin-top:10px;flex:1;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;font-size:13px;color:var(--text-3);}
.empty-state{grid-column:1/-1;text-align:center;padding:64px 24px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);}
.empty-state i{font-size:30px;color:var(--text-3);}
.empty-state p{color:var(--text-2);margin:14px 0 18px;font-size:15px;}

/* ---------- FAQ ---------- */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item[open]{border-color:#D3DACD;box-shadow:var(--sh1);}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;position:relative;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;background:transparent;border-radius:0 3px 3px 0;}
.faq-item[open] summary::before{background:var(--lime);}
.faq-item summary i{font-size:12px;color:var(--text-3);transition:transform .2s ease;}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--ink);}
.faq-answer{padding:0 24px 22px 24px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- 订阅 ---------- */
.subscribe{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh1);
  padding:40px 44px;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;}
.subscribe h2{font-size:24px;font-weight:700;}
.subscribe p{color:var(--text-2);font-size:15px;line-height:1.85;margin-top:10px;}
.sub-form{display:flex;gap:12px;}
.sub-form input{flex:1;height:48px;border-radius:var(--r-btn);border:1px solid var(--line);padding:0 20px;
  background:#FBFCF8;color:var(--text);transition:border-color .15s ease,box-shadow .15s ease;font-size:15px;}
.sub-form input::placeholder{color:var(--text-3);}
.sub-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 3px rgba(201,242,77,.3);}
.sub-form input.error{border-color:var(--coral);}
.form-hint{font-size:12px;color:var(--coral);margin-top:8px;min-height:16px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 32px;font-size:14px;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand b{color:#fff;font-size:18px;display:block;margin-bottom:12px;}
.footer-brand p{line-height:1.9;font-size:14px;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;color:rgba(255,255,255,.72);line-height:2.1;font-size:14px;}
.footer-col a:hover{color:var(--lime);}
.footer-qr{width:88px;height:88px;border:1px dashed rgba(255,255,255,.4);border-radius:14px;display:flex;
  align-items:center;justify-content:center;color:rgba(255,255,255,.55);font-size:12px;text-align:center;line-height:1.4;margin-top:14px;}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);}

/* ---------- 移动端固定条 ---------- */
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(11,42,34,.96);
  border-top:1px solid rgba(255,255,255,.12);padding:10px 16px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sect:64px;}
  .hero{padding:120px 0 48px;background:linear-gradient(180deg,#0B2A22 0%,#0B2A22 70%,#F5F6F1 70%,#F5F6F1 100%);}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{max-height:none;aspect-ratio:4/5;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:48px 32px;}
  .subscribe{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .nav-links,.nav-search{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .hero-copy h1{font-size:30px;}
  .sec-title{font-size:22px;}
  .pick-row{grid-template-columns:52px 1fr;padding:18px;}
  .pick-num{font-size:26px;}
  .pick-thumb{display:none;}
  .clip-card{flex:0 0 200px;}
  .voice-card{flex:0 0 262px;}
  .rail-btn{display:none;}
  .cta-side{flex-direction:column;align-items:stretch;}
  .cta-side .btn{width:100%;}
  .qr{align-self:flex-start;}
  .mobile-bar{display:block;}
  .site-footer{padding-bottom:96px;}
}
@media (max-width:520px){
  .hero-copy h1{font-size:26px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .post-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
}

/* roulang page: article */
:root{
  --ink:#0B2A22;--ink-2:#12463A;--ink-3:#1B5A49;--ink-card:#10231D;
  --lime:#C9F24D;--lime-hover:#D8FF6B;--lime-active:#B4DE3C;
  --coral:#FF5B3A;
  --bg:#F5F6F1;--card:#FFFFFF;--soft:#F0F3EA;--skeleton:#EDF0E8;
  --text:#14201C;--text-2:#55635C;--text-3:#8A968F;
  --line:#E4E8E0;
  --r-card:18px;--r-big:24px;--r-btn:999px;--r-tag:6px;
  --sh1:0 1px 2px rgba(11,42,34,.06),0 8px 24px rgba(11,42,34,.06);
  --sh2:0 14px 36px rgba(11,42,34,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;padding-top:68px;font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none;transition:color .15s ease,background .15s ease,border-color .15s ease}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{font-weight:700;color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.4px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease}
.btn-primary{background:var(--lime);color:var(--ink)}
.btn-primary:hover{background:var(--lime-hover);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{background:var(--lime-active);transform:translateY(1px);box-shadow:none}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-outline:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{padding:10px 4px;color:var(--ink);text-decoration:underline;text-underline-offset:5px;text-decoration-color:var(--lime);text-decoration-thickness:2px}
.btn-ghost:hover{color:var(--ink-3)}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;box-shadow:none;pointer-events:none}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;background:rgba(11,42,34,.96);transition:background .25s ease,box-shadow .25s ease}
.site-header.shrunk{background:#0B2A22;box-shadow:0 8px 24px rgba(11,42,34,.2)}
.nav-bar{display:flex;align-items:center;gap:20px;height:68px;transition:height .25s ease}
.site-header.shrunk .nav-bar{height:56px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--lime);color:var(--ink);font-weight:700;font-size:14px;letter-spacing:.5px;display:grid;place-items:center;font-family:ui-monospace,Menlo,monospace;transition:width .25s ease,height .25s ease}
.site-header.shrunk .logo-mark{width:34px;height:34px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{color:#fff;font-size:16px;font-weight:700;transition:font-size .25s ease}
.logo-text span{color:rgba(255,255,255,.45);font-size:10.5px;letter-spacing:1.4px;text-transform:uppercase;font-family:ui-monospace,Menlo,monospace}
.site-header.shrunk .logo-text b{font-size:15px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{position:relative;color:rgba(255,255,255,.76);font-size:14.5px;padding:8px 11px;border-radius:10px;white-space:nowrap;transition:color .15s ease,background .15s ease}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-links a.active{color:#fff}
.nav-links a.active::after{content:"";position:absolute;left:11px;right:11px;bottom:1px;height:2px;border-radius:2px;background:var(--lime)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:8px}
.nav-search{width:38px;height:38px;border-radius:999px;display:grid;place-items:center;color:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.16);transition:color .15s ease,border-color .15s ease}
.nav-search:hover{color:var(--lime);border-color:var(--lime)}
.nav-cta{padding:10px 18px;font-size:14px}
.burger{display:none;width:42px;height:42px;border-radius:12px;place-items:center;color:#fff;font-size:18px;transition:background .15s ease}
.burger:hover{background:rgba(255,255,255,.1)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;inset:0;z-index:80;background:var(--ink);display:flex;flex-direction:column;padding:calc(18px + env(safe-area-inset-top)) 24px 28px;transform:translateX(100%);opacity:0;pointer-events:none;transition:transform .28s ease,opacity .28s ease}
.mobile-drawer.open{transform:none;opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;border-radius:999px;display:grid;place-items:center;color:rgba(255,255,255,.85);font-size:20px;transition:color .15s ease,background .15s ease}
.drawer-close:hover{color:var(--lime);background:rgba(255,255,255,.08)}
.drawer-links{display:flex;flex-direction:column;margin-top:28px;flex:1;overflow-y:auto}
.drawer-links a{color:rgba(255,255,255,.85);font-size:18px;line-height:56px;border-bottom:1px solid rgba(255,255,255,.1);transition:color .15s ease}
.drawer-links a:hover,.drawer-links a.active{color:var(--lime)}
.drawer-cta{margin-top:24px}
.drawer-cta .btn{width:100%}
body.lock{overflow:hidden}

/* ---------- 文章头部 ---------- */
.article-top{background:#fff;border-bottom:1px solid var(--line);padding:44px 0 34px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:12.5px;line-height:1.7;color:var(--text-3)}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .cur{color:var(--text-2);max-width:min(520px,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:34px;line-height:1.3;letter-spacing:-.2px;margin:16px 0 18px;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.meta-row .dot{color:#c8d1c6}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-tag);background:var(--soft);color:var(--ink);font-size:12.5px;font-weight:600;line-height:1.6}
.tag-coral{background:transparent;border:1px solid var(--coral);color:var(--coral)}

/* ---------- 正文布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:48px;align-items:start;padding-top:44px;padding-bottom:88px}
.article-main{max-width:760px;width:100%;margin:0 auto}
.cover{margin:0 0 26px;border-radius:20px;overflow:hidden;background:var(--skeleton)}
.cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.lede{font-size:18px;line-height:1.85;background:var(--soft);border-left:4px solid var(--lime);border-radius:0 14px 14px 0;padding:20px 22px;margin:0 0 36px;color:var(--text)}
.article-body{font-size:17px;line-height:1.95;color:var(--text)}
.article-body>*+*{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{font-size:26px;line-height:1.4;margin:48px 0 16px;scroll-margin-top:100px}
.article-body h3{font-size:20px;font-weight:600;margin:32px 0 12px}
.article-body ul{list-style:disc;padding-left:1.5em;line-height:1.85}
.article-body ol{list-style:decimal;padding-left:1.5em;line-height:1.85}
.article-body li+li{margin-top:.5em}
.article-body li::marker{color:var(--ink-2)}
.article-body blockquote{margin:1.5em 0;padding:16px 20px;background:var(--soft);border-left:4px solid var(--coral);border-radius:0 14px 14px 0;color:var(--text-2)}
.article-body img{border-radius:16px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--ink);border-bottom:1px solid var(--lime)}
.article-body a:hover{color:var(--ink-3)}
.article-body strong{font-weight:600;color:var(--ink)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
.article-body th{background:var(--ink);color:#fff;font-weight:600;text-align:left;padding:12px 14px;white-space:nowrap}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body code{font-family:ui-monospace,Menlo,monospace;font-size:.92em;background:var(--soft);border-radius:6px;padding:2px 6px}

/* ---------- 空态 ---------- */
.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-icon{width:64px;height:64px;border-radius:18px;background:var(--soft);display:grid;place-items:center;margin:0 auto 18px;color:var(--ink-2);font-size:22px}
.empty-state h3{margin:0 0 10px;font-size:20px}
.empty-state p{margin:0 auto 22px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:420px}

/* ---------- 正文尾部组件 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row a:hover{background:var(--ink);color:#fff}
.block{margin-top:48px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{margin:0;font-size:22px}
.section-head .note{font-size:14px;color:var(--text-2)}
.split-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.split-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.split-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#d3dbcd}
.split-card .label{display:block;font-size:12.5px;color:var(--text-3);margin-bottom:8px}
.split-card .t{font-size:16px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#d3dbcd}
.card-img{aspect-ratio:16/10;background:var(--skeleton);overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-img img{transform:scale(1.04)}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.5;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:15px;line-height:1.85;color:var(--text-2);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.faq-list{margin-top:8px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;font-size:17px;font-weight:600;color:var(--ink);transition:box-shadow .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:18px;color:var(--ink-2);transition:transform .2s ease}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--lime)}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-a{padding:0 20px 18px;font-size:15px;line-height:1.9;color:var(--text-2)}
.back-row{margin-top:40px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.toc-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 18px 14px}
.toc-card h3,.side-card h3{margin:0 0 12px;font-size:13.5px;font-weight:700;letter-spacing:.6px}
.toc-card ul{list-style:none;margin:0;padding:0}
.toc-card li a{display:block;padding:6px 0 6px 10px;border-left:2px solid var(--line);font-size:13.5px;line-height:1.7;color:var(--text-2)}
.toc-card li a:hover{color:var(--ink)}
.toc-card li a.active{color:var(--ink);font-weight:600;border-left-color:var(--lime)}
.side-card a{display:block;font-size:14px;line-height:2.1;color:var(--text-2);border-bottom:1px dashed var(--line)}
.side-card a:last-child{border-bottom:0}
.side-card a:hover{color:var(--ink-3)}

/* ---------- CTA 横条 ---------- */
.cta-band{background:var(--ink);padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-text{max-width:580px}
.cta-text h2{color:#fff;font-size:26px;margin:0 0 12px;line-height:1.4}
.cta-text p{color:rgba(255,255,255,.66);font-size:15px;line-height:1.85;margin:0}
.cta-right{display:flex;align-items:center;gap:24px}
.qr-box{width:80px;height:80px;border:1px dashed rgba(255,255,255,.42);border-radius:12px;display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.5;color:rgba(255,255,255,.6)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand b{display:block;color:#fff;font-size:17px;margin-bottom:12px}
.footer-brand p{margin:0;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:14px;margin:0 0 14px}
.footer-col a{display:block;color:rgba(255,255,255,.72);line-height:2.05}
.footer-col a:hover{color:var(--lime)}
.footer-qr{width:80px;height:80px;margin-top:10px;border:1px dashed rgba(255,255,255,.42);border-radius:12px;display:grid;place-items:center;text-align:center;font-size:12px;line-height:1.5;color:rgba(255,255,255,.6)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 移动底部行动条 ---------- */
.mobile-bar{display:none}

@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .burger{display:grid}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-side{display:none}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .article-top{padding:32px 0 26px}
  .article-title{font-size:27px}
  .article-body{font-size:16.5px;line-height:1.9}
  .article-body h2{font-size:22px;margin-top:38px}
  .lede{font-size:16.5px;padding:16px 18px}
  .article-layout{padding-bottom:56px}
  .cta-band{padding:48px 0}
  .cta-inner{gap:26px}
  .cta-right{width:100%;justify-content:space-between}
  .cta-right .btn{width:100%}
  .split-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .footer-brand{grid-column:1/-1}
  .mobile-bar{display:block;position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(11,42,34,.98);padding:10px 16px calc(10px + env(safe-area-inset-bottom))}
  .mobile-bar .btn{width:100%}
  body{padding-bottom:74px}
}
@media (max-width:520px){
  .article-title{font-size:24px}
  .meta-row{font-size:12.5px;gap:8px}
  .breadcrumb .cur{max-width:200px}
  .logo-text b{font-size:15px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:auto}
  .card-title{font-size:16.5px}
}

/* roulang page: category1 */
:root{
  --ink:#0B2A22;
  --ink-2:#12463A;
  --ink-3:#1B5A49;
  --accent:#C9F24D;
  --accent-hi:#D8FF6B;
  --accent-lo:#B4DE3C;
  --coral:#FF5B3A;
  --bg:#F5F6F1;
  --card:#FFFFFF;
  --card-dark:#10231D;
  --text:#14201C;
  --muted:#55635C;
  --faint:#8A968F;
  --line:#E4E8E0;
  --soft:#F0F3EA;
  --skeleton:#EDF0E8;
  --r-card:18px;
  --r-lg:24px;
  --r-tag:6px;
  --r-btn:999px;
  --sh1:0 1px 2px rgba(11,42,34,.06),0 8px 24px rgba(11,42,34,.06);
  --sh2:0 14px 36px rgba(11,42,34,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;height:auto;background:var(--skeleton)}
a{color:inherit;text-decoration:none;transition:color .15s ease,background-color .15s ease,border-color .15s ease}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.35}
h1{font-size:38px;line-height:1.25}
h2{font-size:26px}
h3{font-size:19px;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;letter-spacing:.02em}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 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 .lead{color:var(--muted);font-size:15.5px;line-height:1.85;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);background:var(--soft);border-radius:var(--r-tag);padding:5px 12px;margin-bottom:14px;font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-btn);
  padding:0 26px;height:48px;font-size:15.5px;font-weight:700;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,color .15s ease,border-color .15s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:var(--ink);box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--accent-hi);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{background:var(--accent-lo);transform:translateY(1px);box-shadow:none}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-outline:active{transform:translateY(1px);box-shadow:none}
.btn-outline-light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn-outline-light:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-text{height:auto;padding:0;color:var(--ink);font-weight:600;border-bottom:2px solid var(--accent);border-radius:0}
.btn-text:hover{color:var(--ink-3)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn:disabled{opacity:.45;transform:none!important;box-shadow:none;cursor:not-allowed}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:68px;display:flex;align-items:center;
  background:rgba(11,42,34,.94);
  transition:height .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.site-header.shrink{height:56px;background:#0B2A22;box-shadow:0 10px 30px rgba(11,42,34,.22)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--accent);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;letter-spacing:.02em;
  transition:width .2s ease,height .2s ease;
}
.site-header.shrink .logo-mark{width:32px;height:32px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{color:#fff;font-size:16px;font-weight:700;letter-spacing:.01em;transition:font-size .2s ease}
.logo-text span{color:rgba(255,255,255,.5);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.site-header.shrink .logo-text b{font-size:15px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;color:rgba(255,255,255,.76);font-size:15px;padding:6px 0;transition:color .15s ease}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:var(--accent);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:var(--accent);border-radius:2px}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-search{width:38px;height:38px;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.18);transition:color .15s ease,border-color .15s ease}
.nav-search:hover{color:var(--accent);border-color:var(--accent)}
.nav-search svg{width:16px;height:16px}
.nav-cta{height:40px;padding:0 20px;font-size:14.5px}
.burger{display:none;width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger svg{width:18px;height:18px}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:#0B2A22;
  display:flex;flex-direction:column;padding:22px 24px 32px;
  transform:translateX(102%);transition:transform .25s ease;
}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px}
.drawer nav{display:flex;flex-direction:column;margin-top:8px}
.drawer nav a{color:rgba(255,255,255,.86);font-size:18px;line-height:56px;border-bottom:1px solid rgba(255,255,255,.08)}
.drawer nav a.active{color:var(--accent);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .now{color:rgba(255,255,255,.92)}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;color:#fff;padding:44px 0 64px;
  background-image:linear-gradient(118deg,rgba(11,42,34,.97) 0%,rgba(11,42,34,.9) 46%,rgba(19,74,61,.82) 100%),url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
}
.cat-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.08)}
.cat-hero h1{color:#fff;margin-top:22px;max-width:900px}
.cat-hero .hero-lead{color:rgba(255,255,255,.76);font-size:16.5px;line-height:1.9;max-width:720px;margin-top:18px}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:36px}
.stat b{display:block;font-size:32px;line-height:1.1;color:var(--accent);font-family:ui-monospace,Menlo,Consolas,monospace}
.stat span{font-size:13.5px;color:rgba(255,255,255,.6)}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}

/* ---------- 胶囊筛选条 ---------- */
.pill-bar{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12)}
.pill{
  border-radius:var(--r-btn);padding:9px 20px;font-size:14.5px;cursor:pointer;
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.04);color:rgba(255,255,255,.82);
  transition:background-color .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.pill:hover{border-color:var(--accent);color:#fff;transform:translateY(-1px)}
.pill.active{background:var(--accent);border-color:var(--accent);color:var(--ink);font-weight:700}
.pill.active:hover{background:var(--accent-hi)}

/* ---------- 竖屏封面卡网格 ---------- */
.v-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.v-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease}
.v-card:hover{transform:scale(1.02);box-shadow:var(--sh2)}
.v-card.hide{display:none}
.v-card-media{position:relative;aspect-ratio:9/16;overflow:hidden;background:var(--skeleton)}
.v-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.v-card:hover .v-card-media img{transform:scale(1.04)}
.v-card-tag{position:absolute;left:10px;top:10px;background:var(--coral);color:#fff;font-size:11.5px;line-height:1;padding:6px 10px;border-radius:var(--r-btn);font-weight:600}
.v-card-body{padding:14px 16px 18px}
.v-card-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.v-card-meta{margin-top:8px;font-size:13px;color:var(--faint)}
.empty-note{display:none;text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);color:var(--muted);background:#fff}
.empty-note.show{display:block}

/* ---------- 步骤时间线 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:12px}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px 26px;box-shadow:var(--sh1)}
.step-no{width:44px;height:44px;border-radius:14px;background:var(--ink);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;font-family:ui-monospace,Menlo,Consolas,monospace;margin-bottom:18px}
.step h3{margin-bottom:10px}
.step p{font-size:15px;color:var(--muted);line-height:1.85;margin:0}
.step .step-tip{margin-top:14px;font-size:13px;color:var(--coral);font-weight:600}

/* ---------- 双端对照 ---------- */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.compare-col{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh1)}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.compare-col h3 .dot{width:10px;height:10px;border-radius:3px;background:var(--accent)}
.compare-col.dark{background:var(--card-dark);border-color:transparent}
.compare-col.dark h3{color:#fff}
.compare-col.dark li{color:rgba(255,255,255,.74);border-color:rgba(255,255,255,.1)}
.compare-col.dark li b{color:var(--accent)}
.compare-col li{display:flex;gap:12px;padding:12px 0;font-size:15px;color:var(--muted);line-height:1.85;border-bottom:1px solid var(--line)}
.compare-col li:last-child{border-bottom:0}
.compare-col li b{color:var(--ink);font-weight:600;flex-shrink:0}

/* ---------- 紧凑速查清单 ---------- */
.check-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1)}
.check-row{display:flex;align-items:center;gap:16px;padding:18px 22px;border-bottom:1px solid var(--line);transition:background-color .15s ease}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:var(--soft)}
.check-icon{width:15px;height:15px;border-radius:4px;background:var(--soft);border:1px solid var(--line);flex-shrink:0}
.check-row:nth-child(odd) .check-icon{background:var(--accent);border-color:var(--accent)}
.check-main{flex:1;min-width:0}
.check-main h3{font-size:17px;font-weight:600;line-height:1.5}
.check-main p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:4px 0 0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.check-time{font-size:13px;color:var(--faint);flex-shrink:0}
.check-arrow{color:var(--faint);flex-shrink:0;transition:color .15s ease,transform .15s ease}
.check-row:hover .check-arrow{color:var(--ink-2);transform:translateX(2px)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .2s ease}
.faq-item[open]{box-shadow:var(--sh1);border-color:#D8DED2}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 54px 18px 22px;position:relative;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;margin-top:-7px;
  border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
.faq-item[open] summary{box-shadow:inset 3px 0 0 var(--accent)}
.faq-body{padding:0 22px 20px;border-top:1px solid var(--line);animation:fadeUp .2s ease}
.faq-body p{font-size:15px;line-height:1.9;color:var(--muted);padding-top:16px;margin:0}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- CTA 区块 ---------- */
.cta-band{background:var(--ink);color:#fff;padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:15.5px;max-width:560px;margin:0}
.cta-right{display:flex;align-items:center;gap:24px;flex-shrink:0}
.cta-qr{width:80px;height:80px;border:1px dashed rgba(255,255,255,.4);border-radius:14px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:1.4;color:rgba(255,255,255,.65)}
.cta-right .col{display:flex;flex-direction:column;gap:10px}
.cta-right .col small{font-size:12.5px;color:rgba(255,255,255,.5)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand b{color:#fff;font-size:17px;display:block;margin-bottom:12px}
.footer-brand p{color:rgba(255,255,255,.6);line-height:1.85;font-size:14px;margin:0;max-width:320px}
.footer-col h4{color:#fff;font-size:14.5px;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.68);padding:6px 0;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-qr{width:80px;height:80px;border:1px dashed rgba(255,255,255,.3);border-radius:14px;display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;line-height:1.4;color:rgba(255,255,255,.6);margin-top:8px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap}

/* ---------- 移动端底部行动条 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(11,42,34,.96);border-top:1px solid rgba(255,255,255,.12);
  padding:10px 16px;align-items:center;gap:12px;
}
.mobile-bar .btn{width:100%;height:46px}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .v-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
}
@media (max-width:1024px){
  h1{font-size:32px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:flex}
  .v-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(3,minmax(0,1fr))}
  .section{padding:72px 0}
}
@media (max-width:768px){
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:22px}
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cat-hero{padding:34px 0 48px}
  .hero-stats{gap:26px}
  .stat b{font-size:26px}
  .v-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .v-card-title{font-size:15.5px;min-height:46px}
  .v-card-body{padding:12px 13px 15px}
  .steps{grid-template-columns:1fr;gap:16px}
  .compare{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-right{width:100%;flex-direction:column;align-items:flex-start;gap:16px}
  .cta-right .col{width:100%}
  .cta-right .col .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .mobile-bar{display:flex}
  .site-footer{padding-bottom:96px}
}
@media (max-width:520px){
  h1{font-size:25px}
  .v-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
  .v-card-title{font-size:14.5px;min-height:44px}
  .hero-actions{gap:12px}
  .hero-actions .btn{width:100%}
  .pill{padding:8px 15px;font-size:13.5px}
  .check-row{padding:15px 16px;gap:12px}
  .check-time{display:none}
  .footer-grid{grid-template-columns:1fr}
  .faq-item summary{font-size:15.5px;padding:16px 46px 16px 18px}
}

/* roulang page: category2 */
:root{
  --ink:#0B2A22;
  --ink-2:#12463A;
  --ink-3:#1B5A49;
  --lime:#C9F24D;
  --lime-hover:#D8FF6B;
  --lime-active:#B4DE3C;
  --coral:#FF5B3A;
  --bg:#F5F6F1;
  --card:#FFFFFF;
  --dark-card:#10231D;
  --text:#14201C;
  --text-2:#55635C;
  --text-3:#8A968F;
  --line:#E4E8E0;
  --soft:#F0F3EA;
  --skeleton:#EDF0E8;
  --r-card:18px;
  --r-lg:24px;
  --r-btn:999px;
  --r-chip:6px;
  --sh-1:0 1px 2px rgba(11,42,34,.06), 0 8px 24px rgba(11,42,34,.06);
  --sh-2:0 14px 36px rgba(11,42,34,.12);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:72px; --sp-8:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:color .15s ease;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;letter-spacing:.02em;}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,color .15s ease,border-color .15s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--lime-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{background:var(--lime-active);transform:translateY(1px);box-shadow:none;}
.btn-outline{border:1px solid var(--ink-2);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--soft);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline:active{transform:translateY(1px);box-shadow:none;}
.btn-on-dark{border:1px solid rgba(233,244,214,.5);color:#F3F8E9;background:transparent;}
.btn-on-dark:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-on-dark:active{transform:translateY(1px);}
.btn-lg{height:54px;padding:0 34px;font-size:16px;}
.btn[disabled],.btn.is-disabled{opacity:.45;transform:none;box-shadow:none;pointer-events:none;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(11,42,34,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(201,242,77,.12);
  transition:height .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.site-header.shrink{background:rgba(8,32,26,.98);box-shadow:0 10px 28px rgba(11,42,34,.24);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:68px;transition:height .2s ease;}
.site-header.shrink .nav-bar{height:56px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;letter-spacing:.04em;
  transition:width .2s ease,height .2s ease;
}
.site-header.shrink .logo-mark{width:32px;height:32px;font-size:13px;}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{color:#fff;font-size:17px;font-weight:700;letter-spacing:.01em;transition:font-size .2s ease;}
.site-header.shrink .logo-text b{font-size:16px;}
.logo-text span{color:rgba(201,242,77,.78);font-size:11px;letter-spacing:.12em;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;color:rgba(255,255,255,.78);font-size:15px;padding:6px 0;
  transition:color .15s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--lime);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.nav-search{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.75);border:1px solid rgba(255,255,255,.16);
  transition:color .15s ease,border-color .15s ease,background-color .15s ease;
}
.nav-search:hover{color:var(--lime);border-color:rgba(201,242,77,.55);background:rgba(201,242,77,.08);}
.nav-cta{height:40px;padding:0 20px;font-size:14px;}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  color:#fff;font-size:18px;border:1px solid rgba(255,255,255,.18);
  align-items:center;justify-content:center;
}
.burger:hover{color:var(--lime);border-color:rgba(201,242,77,.5);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--ink);
  display:flex;flex-direction:column;
  padding:22px 24px 32px;
  transform:translateY(-102%);opacity:0;visibility:hidden;
  transition:transform .26s ease,opacity .26s ease,visibility .26s;
}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:42px;height:42px;border-radius:12px;color:#fff;font-size:19px;border:1px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;}
.drawer-close:hover{color:var(--lime);border-color:rgba(201,242,77,.5);}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:18px;color:rgba(255,255,255,.82);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.drawer-nav a:hover{color:var(--lime);}
.drawer-nav a.active{color:var(--lime);font-weight:700;}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn{width:100%;}

/* ---------- Hero ---------- */
.cat-hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:96px 0 72px;}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.22;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,42,34,.55) 0%,rgba(11,42,34,.92) 70%,rgba(11,42,34,1) 100%);
}
.hero-inner{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:var(--lime);}
.crumb .cur{color:#fff;}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(201,242,77,.14);color:var(--lime);
  border:1px solid rgba(201,242,77,.35);
  border-radius:var(--r-chip);padding:6px 12px;font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.cat-hero h1{
  font-size:38px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  max-width:820px;
}
.hero-sub{
  margin-top:18px;max-width:640px;
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:48px;
  margin-top:48px;padding-top:28px;
  border-top:1px solid rgba(255,255,255,.12);
}
.hero-stats li{display:flex;flex-direction:column;gap:4px;}
.hero-stats b{font-size:26px;font-weight:700;color:var(--lime);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.hero-stats span{font-size:14px;color:rgba(255,255,255,.66);}

/* ---------- 通用区块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:56px 0;}
.section-title{font-size:26px;font-weight:700;line-height:1.4;letter-spacing:.01em;}
.section-sub{margin-top:12px;font-size:16px;color:var(--text-2);max-width:720px;}
.chip{
  display:inline-block;background:var(--soft);color:var(--ink);
  border-radius:var(--r-chip);padding:5px 10px;font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.chip-coral{background:transparent;border:1px solid rgba(255,91,58,.5);color:#C43E22;}

/* ---------- 准备条 ---------- */
.prep-band{background:var(--soft);padding:64px 0;}
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:36px;}
.prep-item{position:relative;padding-left:60px;}
.prep-item .num{
  position:absolute;left:0;top:2px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:26px;font-weight:700;color:var(--ink);opacity:.28;
}
.prep-item h3{font-size:18px;font-weight:600;line-height:1.5;}
.prep-item p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- 主体：左文右图 + 粘性锚点 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:56px;align-items:start;}
.row-block{
  display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line);
}
.row-block:first-child{border-top:0;padding-top:0;}
.row-block:nth-of-type(even) .row-text{order:2;}
.row-block:nth-of-type(even) .row-media{order:1;}
.row-text h3{font-size:22px;font-weight:600;line-height:1.45;margin-top:14px;}
.row-text p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--text-2);}
.row-media img{
  width:100%;height:250px;object-fit:cover;
  border-radius:var(--r-card);background:var(--skeleton);border:1px solid var(--line);
}
.link-text{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--lime);padding-bottom:2px;
}
.link-text:hover{color:var(--ink-3);}
.anchor-nav{position:sticky;top:96px;padding:24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);}
.anchor-title{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--text-3);margin-bottom:14px;}
.anchor-nav a{
  display:block;padding:9px 0 9px 14px;font-size:14.5px;color:var(--text-2);
  border-left:3px solid transparent;transition:color .15s ease,border-color .15s ease,background-color .15s ease;
}
.anchor-nav a:hover{color:var(--ink);background:var(--soft);}
.anchor-nav a.active{color:var(--ink);font-weight:600;border-left-color:var(--lime);background:var(--soft);}

/* ---------- 深色数据带 ---------- */
.dark-band{background:var(--ink);color:#fff;padding:72px 0;}
.dark-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center;}
.dark-band h2{font-size:26px;font-weight:700;line-height:1.4;}
.dark-band p{margin-top:16px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.72);max-width:460px;}
.dark-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.dark-stats li{
  background:var(--dark-card);border:1px solid rgba(201,242,77,.16);
  border-radius:var(--r-card);padding:22px 18px;
}
.dark-stats b{display:block;font-size:24px;font-weight:700;color:var(--lime);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.dark-stats span{display:block;margin-top:8px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.68);}

/* ---------- 异常清单 ---------- */
.fix-section{padding:88px 0;background:var(--bg);}
.issue-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 40px;margin-top:40px;}
.issue{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.issue-num{
  width:40px;height:40px;border-radius:var(--r-chip);
  background:var(--soft);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:16px;font-weight:700;
}
.issue h3{font-size:17px;font-weight:600;line-height:1.5;}
.issue p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-section{padding:88px 0;background:#fff;}
.faq-list{display:grid;gap:12px;margin-top:36px;max-width:900px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--lime);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item[open]{box-shadow:var(--sh-1);}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:18px 52px 18px 22px;font-size:17px;font-weight:600;line-height:1.6;
  transition:color .15s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:24px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--ink-2);border-bottom:2px solid var(--ink-2);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(225deg);}
.faq-item summary:hover{color:var(--ink-3);}
.faq-item .faq-body{padding:0 52px 20px 22px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:#fff;padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;}
.cta-text h2{font-size:26px;font-weight:700;line-height:1.4;}
.cta-text p{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:520px;}
.cta-action{display:flex;align-items:center;gap:24px;flex:0 0 auto;}
.qr{
  width:80px;height:80px;border:1px dashed rgba(201,242,77,.6);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.4;color:rgba(201,242,77,.85);
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand b{display:block;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;max-width:300px;color:rgba(255,255,255,.62);}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--lime);}
.footer-qr{
  margin-top:14px;width:80px;height:80px;border:1px dashed rgba(201,242,77,.55);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;line-height:1.4;color:rgba(201,242,77,.85);
}
.footer-bottom{
  margin-top:44px;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,.55);
}

/* ---------- 移动底部行动条 ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(11,42,34,.97);border-top:1px solid rgba(201,242,77,.22);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px));
}
.mobile-bar .btn{width:100%;height:46px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,1fr) 240px;gap:40px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .burger{display:flex;}
  .layout{grid-template-columns:minmax(0,1fr);}
  .anchor-nav{display:none;}
  .dark-inner{grid-template-columns:1fr;gap:36px;}
  .prep-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:74px;}
  .container{padding:0 16px;}
  .section,.fix-section,.faq-section{padding:56px 0;}
  .section-tight,.prep-band{padding:44px 0;}
  .cat-hero{padding:60px 0 52px;}
  .cat-hero h1{font-size:27px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:28px;margin-top:36px;}
  .hero-stats b{font-size:22px;}
  .dark-band,.cta-band{padding:52px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .cta-action{width:100%;justify-content:space-between;}
  .cta-action .btn{flex:1 1 auto;}
  .row-block{grid-template-columns:1fr;gap:20px;padding:28px 0;}
  .row-block:nth-of-type(even) .row-text{order:1;}
  .row-block:nth-of-type(even) .row-media{order:2;}
  .row-media img{height:210px;}
  .row-text h3{font-size:20px;}
  .issue-grid{grid-template-columns:1fr;gap:0;margin-top:28px;}
  .dark-stats{grid-template-columns:1fr;gap:14px;}
  .section-title{font-size:22px;}
  .dark-band h2,.cta-text h2{font-size:22px;}
  .faq-item summary{font-size:16px;padding:16px 46px 16px 18px;}
  .faq-item .faq-body{padding:0 46px 18px 18px;}
  .mobile-bar{display:block;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:25px;}
  .logo-text b{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-action{flex-direction:column;align-items:stretch;gap:16px;}
  .qr{width:100%;height:64px;}
}

/* roulang page: category3 */
:root{
  --brand:#0B2A22;
  --brand-2:#12463A;
  --brand-3:#1B5A49;
  --action:#C9F24D;
  --action-hover:#D8FF6B;
  --action-active:#B4DE3C;
  --mark:#FF5B3A;
  --bg:#F5F6F1;
  --card:#FFFFFF;
  --card-dark:#10231D;
  --ink:#14201C;
  --ink-2:#55635C;
  --ink-3:#8A968F;
  --line:#E4E8E0;
  --soft:#F0F3EA;
  --skeleton:#EDF0E8;
  --r-card:18px;
  --r-big:24px;
  --r-tag:6px;
  --r-faq:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,34,.06),0 8px 24px rgba(11,42,34,.06);
  --sh-2:0 14px 36px rgba(11,42,34,.12);
  --t:150ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.9;font-weight:400;
}
img{display:block;max-width:100%;height:auto;object-fit:cover;background:var(--skeleton)}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35}
p{margin:0 0 1.2em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--action);outline-offset:2px;border-radius:4px}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(11,42,34,.92);
  backdrop-filter:saturate(140%) blur(2px);
  transition:padding var(--t),background var(--t),box-shadow var(--t);
  padding:14px 0;
}
.site-header.scrolled{padding:7px 0;background:var(--brand);box-shadow:0 8px 24px rgba(11,42,34,.18)}
.nav-bar{display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff}
.logo-mark{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--action);color:var(--brand);font-weight:700;font-size:15px;letter-spacing:.5px;
  transition:width var(--t),height var(--t);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:17px;font-weight:700;letter-spacing:.2px;transition:font-size var(--t)}
.logo-text span{font-size:11px;color:#9DBBAF;letter-spacing:1.4px;text-transform:uppercase}
.site-header.scrolled .logo-mark{width:32px;height:32px;border-radius:10px}
.site-header.scrolled .logo-text b{font-size:15.5px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav-links a{
  position:relative;padding:8px 12px;border-radius:10px;color:#D7E4DE;font-size:15px;
  transition:color var(--t),background var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--action);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:var(--action)}
.nav-links a.active::after,.nav-links a:hover::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-search{color:#D7E4DE;padding:8px 10px;border-radius:10px;transition:color var(--t),background var(--t)}
.nav-search:hover{color:var(--action);background:rgba(255,255,255,.06)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:11px 22px;font-weight:700;font-size:15px;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--action);color:var(--brand);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--action-hover);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--action-active);transform:translateY(1px);box-shadow:none}
.btn-primary:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}
.btn-outline{border:1px solid var(--brand);color:var(--brand);background:transparent}
.btn-outline:hover{background:var(--soft);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{color:var(--brand);text-decoration:underline;text-underline-offset:5px;padding:6px 2px}
.btn-ghost:hover{color:var(--brand-3)}
.btn-on-dark{border:1px solid rgba(201,242,77,.6);color:var(--action);background:transparent}
.btn-on-dark:hover{background:rgba(201,242,77,.12);transform:translateY(-1px)}
.nav-cta{padding:9px 18px;font-size:14.5px}
.burger{display:none;color:#fff;font-size:20px;padding:8px 10px;border-radius:10px}
.burger:hover{background:rgba(255,255,255,.08)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--brand);color:#fff;
  transform:translateX(100%);transition:transform 240ms ease;display:flex;flex-direction:column;
  padding:24px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{font-size:22px;color:#fff;padding:8px 12px;border-radius:10px}
.drawer-close:hover{background:rgba(255,255,255,.1)}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  font-size:18px;line-height:56px;color:#DCE8E2;border-bottom:1px solid rgba(255,255,255,.08);
  transition:color var(--t),padding-left var(--t);
}
.drawer nav a:hover,.drawer nav a.active{color:var(--action);padding-left:6px}
.drawer-cta{margin-top:24px}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--ink-3)}
.crumb a:hover{color:var(--brand-3)}
.crumb span.sep{margin:0 6px;color:var(--ink-3)}

/* ---------- hero ---------- */
.page-hero{
  background:linear-gradient(140deg,#0B2A22 0%,#12463A 62%,#1B5A49 100%);
  color:#fff;border-radius:var(--r-big);padding:48px;margin:16px 0 0;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,242,77,.22),transparent 68%);
}
.page-hero .tag{
  display:inline-flex;align-items:center;gap:8px;background:rgba(201,242,77,.15);color:var(--action);
  border:1px solid rgba(201,242,77,.42);border-radius:var(--r-tag);padding:5px 12px;font-size:13px;margin-bottom:18px;
}
.page-hero h1{font-size:38px;font-weight:700;max-width:820px}
.page-hero p{color:#C9DAD3;font-size:16.5px;max-width:720px;margin:16px 0 0}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px;position:relative;z-index:1}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:16px}
.stat b{display:block;font-size:26px;color:var(--action);font-family:ui-monospace,Menlo,monospace;line-height:1.2}
.stat span{font-size:13px;color:#B9CCC4}

/* ---------- section ---------- */
.section{padding:64px 0 0}
.section.tight{padding-top:48px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:26px;font-weight:700}
.section-head .desc{color:var(--ink-2);font-size:15px;margin-top:8px;max-width:680px}
.section-head .more{color:var(--brand-3);font-size:14.5px;text-decoration:underline;text-underline-offset:5px;white-space:nowrap}
.section-head .more:hover{color:var(--mark)}

/* ---------- index strip ---------- */
.index-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.index-strip a{
  border:1px solid var(--line);background:var(--card);border-radius:var(--r-pill);
  padding:8px 16px;font-size:14px;color:var(--ink-2);transition:all var(--t);
}
.index-strip a:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1)}
.index-strip a.on{background:var(--action);border-color:var(--action);color:var(--brand);font-weight:700}

/* ---------- checklist rows ---------- */
.check-block{margin-bottom:36px}
.block-title{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.block-title i{color:var(--mark);font-size:14px}
.block-title h3{font-size:20px;font-weight:600}
.block-note{color:var(--ink-2);font-size:14.5px;margin:0 0 10px}
.check-list{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
}
.check-row{
  display:flex;align-items:center;gap:16px;padding:14px 18px;border-bottom:1px solid var(--line);
  transition:background var(--t),transform var(--t);
}
.check-row:last-child{border-bottom:0}
.check-row:hover{background:var(--soft)}
.check-row:hover .row-arrow{color:var(--brand);transform:translateX(3px)}
.row-thumb{width:72px;height:72px;border-radius:14px;flex:0 0 72px;overflow:hidden;position:relative}
.row-thumb img{width:100%;height:100%}
.row-thumb .num{
  position:absolute;left:6px;top:6px;background:var(--mark);color:#fff;border-radius:var(--r-pill);
  font-size:11px;line-height:1;padding:4px 7px;font-family:ui-monospace,Menlo,monospace;
}
.row-main{flex:1;min-width:0}
.row-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink)}
.row-desc{font-size:14.5px;line-height:1.7;color:var(--ink-2);margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row-meta{
  flex:0 0 auto;display:flex;align-items:center;gap:14px;color:var(--ink-3);font-size:13px;
  font-family:ui-monospace,Menlo,monospace;
}
.row-meta .chip{
  background:var(--soft);color:var(--brand-3);border-radius:var(--r-tag);padding:3px 9px;font-family:inherit;
}
.row-arrow{color:var(--ink-3);transition:color var(--t),transform var(--t);font-size:14px}

/* ---------- dark submit band ---------- */
.dark-band{
  background:var(--card-dark);color:#fff;border-radius:var(--r-big);padding:44px;margin-top:56px;
  display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;
}
.dark-band h2{font-size:26px;font-weight:700}
.dark-band p{color:#B7C8C1;font-size:15.5px;margin-top:12px}
.form-inline{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.form-inline input{
  flex:1 1 240px;height:48px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;padding:0 20px;font-size:15px;
  transition:border-color var(--t),background var(--t);
}
.form-inline input::placeholder{color:#8FA69E}
.form-inline input:focus{outline:none;border-color:var(--action);background:rgba(255,255,255,.1)}
.form-inline input.err{border-color:var(--mark)}
.form-note{font-size:12px;color:#93A8A0;margin-top:10px}
.form-note.err{color:var(--mark)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-faq);overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.faq-item[open]{border-color:#CFDCC6;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;font-size:17px;font-weight:600;position:relative;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--action);transform:scaleY(0);transform-origin:top;transition:transform 200ms ease;
}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item summary i{color:var(--ink-3);font-size:12px;transition:transform 200ms ease}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--brand)}
.faq-body{padding:0 20px 18px 20px;color:var(--ink-2);font-size:15px;line-height:1.9}

/* ---------- cta strip ---------- */
.cta-strip{
  margin-top:56px;background:var(--brand);color:#fff;border-radius:var(--r-big);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.cta-strip h2{font-size:24px;font-weight:700}
.cta-strip p{color:#BFD1CA;font-size:15px;margin:10px 0 0}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand);color:#C7D8D1;margin-top:72px;padding:56px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand b{display:block;color:#fff;font-size:18px;margin-bottom:12px}
.footer-brand p{color:#9FB4AC;line-height:1.85;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col a{display:block;color:#B9CCC4;line-height:2.1;transition:color var(--t),padding-left var(--t)}
.footer-col a:hover{color:var(--action);padding-left:4px}
.footer-qr{
  width:80px;height:80px;border:1px dashed rgba(201,242,77,.55);border-radius:12px;
  display:grid;place-items:center;text-align:center;font-size:11px;line-height:1.5;color:#9FB4AC;margin-top:14px;
}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;color:#8FA69E;font-size:13px;
}

/* ---------- mobile bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;padding:10px 16px;
  background:rgba(11,42,34,.96);border-top:1px solid rgba(255,255,255,.12);
}
.mobile-bar .btn{width:100%}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:inline-flex}
  .nav-right{margin-left:auto}
  .page-hero{padding:40px 32px}
  .page-hero h1{font-size:32px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .dark-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding-top:56px}
  .section.tight{padding-top:48px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .page-hero{padding:32px 22px;border-radius:20px}
  .page-hero h1{font-size:28px}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:32px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-bar{display:block}
  .site-footer{padding-bottom:72px}
}
@media (max-width:520px){
  body{font-size:16px}
  .page-hero h1{font-size:24px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:10px}
  .stat b{font-size:22px}
  .row-thumb{width:56px;height:56px;flex:0 0 56px;border-radius:12px}
  .row-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
  .row-meta{gap:8px;font-size:12px}
  .check-row{padding:12px 14px;gap:12px}
}

/* roulang page: category4 */
:root{
  --ink:#0B2A22;
  --ink-2:#12463A;
  --ink-3:#1B5A49;
  --action:#C9F24D;
  --action-hover:#D8FF6B;
  --action-active:#B4DE3C;
  --coral:#FF5B3A;
  --bg:#F5F6F1;
  --card:#FFFFFF;
  --card-dark:#10231D;
  --soft:#F0F3EA;
  --skeleton:#EDF0E8;
  --text:#14201C;
  --text-2:#55635C;
  --text-3:#8A968F;
  --line:#E4E8E0;
  --focus:#C9F24D;
  --r-tag:6px;
  --r-sm:14px;
  --r-md:18px;
  --r-lg:20px;
  --r-xl:24px;
  --sh-1:0 1px 2px rgba(11,42,34,.06), 0 8px 24px rgba(11,42,34,.06);
  --sh-2:0 14px 36px rgba(11,42,34,.12);
  --ease:all .18s ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:var(--ease);}
button,input{font-family:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.mono{font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:4px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  padding:12px 24px;font-size:15px;font-weight:700;line-height:1.4;
  cursor:pointer;transition:var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--action);color:var(--ink);box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--action-hover);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{background:var(--action-active);transform:translateY(1px);box-shadow:none;}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-outline:hover{background:var(--soft);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline:active{transform:translateY(1px);box-shadow:none;}
.btn-outline.on-dark{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline.on-dark:hover{background:rgba(255,255,255,.1);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;
  border-bottom:1px solid currentColor;padding-bottom:2px;
}
.btn-text:hover{color:var(--ink-3);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none;}
.btn-sm{padding:9px 18px;font-size:14px;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--soft);color:var(--ink-2);
  border-radius:var(--r-tag);padding:4px 10px;
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.tag-coral{background:transparent;border:1px solid var(--coral);color:var(--coral);}
.pill{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--coral);color:#fff;border-radius:999px;
  padding:3px 10px;font-size:12px;font-weight:700;line-height:1.5;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:var(--ease);
}
.site-header.scrolled{box-shadow:0 10px 28px rgba(11,42,34,.28);}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:68px;transition:height .25s ease;
}
.site-header.scrolled .nav-bar{height:56px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  display:flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;
  background:var(--action);color:var(--ink);
  font-weight:700;font-size:15px;letter-spacing:.5px;
  transition:var(--ease);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;}
.logo-text b{color:#fff;font-size:16px;font-weight:700;letter-spacing:.3px;transition:font-size .25s ease;}
.logo-text span{color:rgba(255,255,255,.55);font-size:11px;letter-spacing:1.2px;text-transform:uppercase;}
.site-header.scrolled .logo-text b{font-size:15px;}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;color:rgba(255,255,255,.8);
  border-radius:8px;transition:var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--action);border-radius:2px;transform:scaleX(0);
  transform-origin:left;transition:transform .18s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--action);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:50%;
  color:rgba(255,255,255,.8);background:rgba(255,255,255,.08);
}
.nav-search:hover{color:var(--ink);background:var(--action);}
.burger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:17px;cursor:pointer;transition:var(--ease);
}
.burger:hover{background:rgba(255,255,255,.1);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--ink);
  padding:24px;
  display:none;flex-direction:column;
}
.mobile-drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);
  background:transparent;color:#fff;font-size:18px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;flex:1;}
.drawer-nav a{
  color:rgba(255,255,255,.85);font-size:18px;line-height:56px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-nav a.active{color:var(--action);font-weight:600;}
.drawer-nav a:hover{color:var(--action);}
.drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px;}
.drawer-cta .btn{width:100%;padding:15px 24px;font-size:16px;}
body.no-scroll{overflow:hidden;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;color:#fff;
  padding:48px 0 64px;
  background-image:linear-gradient(115deg,rgba(11,42,34,.96) 0%,rgba(18,70,58,.88) 58%,rgba(27,90,73,.78) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-radius:0 0 28px 28px;
  overflow:hidden;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.6);margin-bottom:22px;
}
.breadcrumb a:hover{color:var(--action);}
.breadcrumb span.sep{color:rgba(255,255,255,.35);}
.cat-hero h1{
  font-size:38px;line-height:1.28;font-weight:700;letter-spacing:.5px;
  max-width:860px;margin-bottom:18px;
}
.cat-hero h1 em{font-style:normal;color:var(--action);}
.hero-lead{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.82);
  max-width:760px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:40px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;max-width:720px;
  border-top:1px solid rgba(255,255,255,.14);padding-top:26px;
}
.hero-stats .num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:26px;font-weight:700;color:var(--action);line-height:1.2;
}
.hero-stats .lbl{font-size:13px;color:rgba(255,255,255,.7);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding:56px 0;}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:1.5px;
  color:var(--ink-3);background:var(--soft);border-radius:var(--r-tag);
  padding:4px 12px;margin-bottom:14px;
}
.section-head h2{
  font-size:26px;line-height:1.4;font-weight:700;color:var(--ink);margin-bottom:12px;
}
.section-head p{font-size:16px;line-height:1.9;color:var(--text-2);}
.section-head .head-row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
}

/* ---------- 2×2 大图卡片 ---------- */
.media-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.media-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:var(--ease);display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D7DED2;}
.media-thumb{
  position:relative;aspect-ratio:3/2;overflow:hidden;background:var(--skeleton);
}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.media-card:hover .media-thumb img{transform:scale(1.03);}
.media-thumb .pill{position:absolute;left:14px;top:14px;}
.media-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.media-body h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);}
.media-body p{font-size:15px;line-height:1.85;color:var(--text-2);}
.media-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}
.media-foot .meta{font-size:13px;color:var(--text-3);}

/* ---------- 编号清单 ---------- */
.step-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:8px 28px;box-shadow:var(--sh-1);
}
.step-item{
  display:flex;align-items:flex-start;gap:22px;
  padding:24px 0;border-bottom:1px solid var(--line);transition:var(--ease);
}
.step-item:last-child{border-bottom:none;}
.step-item:hover{background:var(--soft);border-radius:12px;padding-left:12px;padding-right:12px;}
.step-num{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:30px;font-weight:700;line-height:1;
  color:var(--ink);min-width:52px;padding-top:4px;
}
.step-content h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);margin-bottom:6px;}
.step-content p{font-size:15px;line-height:1.85;color:var(--text-2);}
.step-thumb{
  width:96px;height:96px;border-radius:16px;overflow:hidden;background:var(--skeleton);
  flex-shrink:0;
}
.step-thumb img{width:100%;height:100%;object-fit:cover;}

/* ---------- 浏览器对照列表 ---------- */
.compare-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;}
.compare-row{
  display:flex;align-items:center;gap:20px;
  padding:22px 26px;border-bottom:1px solid var(--line);transition:var(--ease);
}
.compare-row:last-child{border-bottom:none;}
.compare-row:hover{background:var(--soft);}
.compare-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  background:var(--soft);color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.compare-text h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--ink);}
.compare-text p{font-size:15px;line-height:1.85;color:var(--text-2);margin-top:4px;}
.compare-arrow{color:var(--text-3);font-size:14px;margin-left:auto;}
.compare-row:hover .compare-arrow{color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:var(--ease);
}
.faq-item:hover{border-color:#D7DED2;}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--action),var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{font-size:12px;color:var(--text-3);transition:transform .2s ease;}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--ink-3);}
.faq-answer{
  padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--text-2);
  animation:fadeIn .2s ease;
}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ink);color:#fff;border-radius:var(--r-xl);
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;
  border-radius:50%;background:rgba(201,242,77,.08);
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.cta-band p{font-size:16px;line-height:1.9;color:rgba(255,255,255,.78);max-width:620px;}
.cta-right{display:flex;align-items:center;gap:20px;flex-shrink:0;position:relative;z-index:1;}
.qr-box{
  width:80px;height:80px;border:1px dashed rgba(255,255,255,.5);border-radius:14px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:11.5px;line-height:1.45;color:rgba(255,255,255,.7);
}

/* ---------- 订阅条 ---------- */
.subscribe{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-1);
}
.subscribe h3{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.subscribe p{font-size:15px;line-height:1.8;color:var(--text-2);}
.subscribe-form{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.subscribe-form input{
  height:48px;width:280px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg);
  padding:0 20px;font-size:15px;color:var(--text);transition:var(--ease);
}
.subscribe-form input::placeholder{color:var(--text-3);}
.subscribe-form input:focus{outline:none;border-color:var(--action);background:#fff;box-shadow:0 0 0 4px rgba(201,242,77,.25);}
.subscribe-form .error{border-color:var(--coral);}
.form-hint{font-size:12px;color:var(--text-3);margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 32px;margin-top:88px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand b{display:block;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:320px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:.5px;}
.footer-col a{display:block;font-size:14px;line-height:2.1;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--action);}
.footer-qr{
  width:80px;height:80px;border:1px dashed rgba(255,255,255,.4);border-radius:12px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:11.5px;line-height:1.4;color:rgba(255,255,255,.62);margin-top:12px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom .mono{color:rgba(255,255,255,.4);}

/* ---------- 移动底部行动条 ---------- */
.mobile-bar{display:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .burger{display:flex;}
  .nav-cta{display:none;}
  .cat-hero h1{font-size:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section.tight{padding:44px 0;}
  .cat-hero{padding:36px 0 48px;border-radius:0 0 20px 20px;}
  .cat-hero h1{font-size:27px;line-height:1.35;}
  .hero-lead{font-size:16px;}
  .hero-stats{grid-template-columns:1fr;gap:14px;}
  .hero-stats .num{font-size:22px;}
  .section-head h2{font-size:22px;}
  .media-grid{grid-template-columns:1fr;gap:20px;}
  .step-panel{padding:4px 20px;}
  .step-item{gap:16px;}
  .step-num{font-size:24px;min-width:38px;}
  .step-thumb{width:72px;height:72px;border-radius:12px;}
  .compare-row{padding:18px 20px;gap:14px;align-items:flex-start;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px;}
  .cta-right{width:100%;justify-content:space-between;}
  .cta-right .btn{width:100%;}
  .subscribe{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .subscribe-form{width:100%;flex-direction:column;align-items:stretch;}
  .subscribe-form input{width:100%;}
  .subscribe-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{padding:48px 0 92px;margin-top:56px;}
  .mobile-bar{
    display:flex;align-items:center;gap:12px;
    position:fixed;left:0;right:0;bottom:0;z-index:65;
    padding:10px 16px;
    background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);
    box-shadow:0 -6px 20px rgba(11,42,34,.08);
  }
  .mobile-bar .btn{width:100%;padding:13px 20px;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:25px;}
  .logo-text b{font-size:15px;}
  .media-body{padding:18px 18px 22px;}
  .media-body h3{font-size:17px;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-answer{padding:0 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .compare-text h3{font-size:16px;}
}