/* roulang page: index */
:root{
  --brand:#0F9BEF;
  --brand-deep:#0B7FC7;
  --brand-soft:#EAF4FF;
  --coral:#FF6B4A;
  --coral-deep:#E85736;
  --lemon:#FFC53D;
  --ink:#0E1F33;
  --text:#3C4E63;
  --muted:#6B7C93;
  --bg:#F4F8FD;
  --paper:#FFFBF3;
  --card:#FFFFFF;
  --line:#E3EBF5;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(14,31,51,.06);
  --shadow-2:0 8px 24px rgba(14,31,51,.08);
  --shadow-3:0 16px 36px rgba(15,155,239,.18);
  --grad:linear-gradient(135deg,#0F9BEF,#5AD0FF);
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:-.02em;}
h1{font-size:40px;}
h2{font-size:30px;}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
img{max-width:100%;display:block;border:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;}
input{font-family:inherit;}
::selection{background:rgba(15,155,239,.18);}

/* Foundation 框架默认样式覆盖 */
.grid-x{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;margin:0;flex-flow:row wrap;}
.grid-x>.cell{width:auto;max-width:none;min-width:0;padding:0;margin:0;grid-column:span 12;}
.grid-margin-x{margin:0;}
.grid-margin-x>.cell{width:auto;margin:0;}
.button,.button.primary,.button.secondary{background:var(--brand);border-radius:999px;}
.accordion,.accordion-item,.accordion-title,.accordion-content{background:transparent;border:0;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* 通用组件 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:15px;font-weight:600;color:#fff;background:var(--brand);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .2s cubic-bezier(.2,.6,.2,1),transform .2s cubic-bezier(.2,.6,.2,1),box-shadow .2s cubic-bezier(.2,.6,.2,1),color .2s ease;
}
.btn svg{width:16px;height:16px;flex:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(15,155,239,.24);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(15,155,239,.28);}
.btn-primary:active{background:var(--grad);transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-coral{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(255,107,74,.26);}
.btn-coral:hover{background:var(--coral-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,107,74,.3);}
.btn-coral:active{transform:translateY(1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-cat{background:var(--brand-soft);color:var(--brand);}
.badge-time{background:rgba(14,31,51,.68);color:#fff;}
.badge-lemon{background:rgba(255,197,61,.18);color:#B87B00;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px dashed var(--line);color:var(--muted);font-size:12.5px;
}
.tag-solid{background:var(--brand-soft);border:1px solid transparent;color:var(--brand);font-weight:600;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  border:1px dashed var(--brand);background:#fff;color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--coral);}

.section{padding:84px 0;}
.section-soft{background:var(--brand-soft);}
.section-paper{background:var(--paper);border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{position:relative;padding-left:16px;}
.section-head h2::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:4px;background:var(--brand);}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:14.5px;max-width:640px;}
.section-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);}
.section-link svg{width:14px;height:14px;transition:transform .2s ease;}
.section-link:hover svg{transform:translateX(3px);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.93);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap;}
.brand:hover{color:var(--brand);}
.brand-mark{width:28px;height:28px;flex:none;}
.brand-text{display:inline-block;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;margin-left:6px;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:10px;color:var(--text);font-size:15px;font-weight:500;}
.nav-links a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-links a.active{color:var(--brand);font-weight:700;}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-14px;height:3px;border-radius:3px;background:var(--brand);}
.nav-tools{display:flex;align-items:center;gap:14px;}
.nav-search{position:relative;display:flex;align-items:center;width:220px;height:40px;border-radius:999px;background:var(--bg);border:1px solid var(--line);}
.nav-search svg{position:absolute;left:14px;width:15px;height:15px;color:var(--muted);}
.nav-search input{width:100%;height:100%;padding:0 16px 0 36px;border:0;background:transparent;border-radius:999px;font-size:14px;color:var(--ink);}
.nav-search input::placeholder{color:var(--muted);}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,155,239,.15);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--ink);}
.nav-toggle svg{width:18px;height:18px;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:18px 0 24px;}
.mobile-drawer.open{display:block;}
.drawer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px;}
.drawer-links a{display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:12px;background:var(--bg);color:var(--ink);font-size:15px;font-weight:600;border:1px solid var(--line);}
.drawer-links a.active{background:var(--brand-soft);color:var(--brand);border-color:transparent;}
.drawer-search{display:flex;align-items:center;gap:10px;height:46px;padding:0 16px;border-radius:12px;background:var(--bg);border:1px solid var(--line);margin-bottom:14px;}
.drawer-search input{flex:1;border:0;background:transparent;font-size:15px;color:var(--ink);}
.drawer-search svg{width:16px;height:16px;color:var(--muted);}
.drawer-cta{width:100%;}

/* Hero */
.hero{position:relative;padding:64px 0 76px;background:var(--bg);border-bottom:1px solid var(--line);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(15,155,239,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.55;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero h1{margin:20px 0 18px;font-size:40px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{max-width:560px;font-size:17px;line-height:1.85;color:var(--text);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:38px;padding-top:26px;border-top:1px dashed var(--line);}
.hero-stats li{min-width:110px;}
.hero-stats strong{display:block;font-size:28px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.hero-stats strong span{font-size:16px;color:var(--brand);margin-left:2px;}
.hero-stats em{display:block;font-style:normal;font-size:13px;color:var(--muted);margin-top:2px;}
.hero-visual{position:relative;display:flex;justify-content:center;}
.phone-frame{
  position:relative;width:min(320px,100%);aspect-ratio:9/16;
  border:6px solid #fff;border-radius:24px;overflow:hidden;background:var(--brand-soft);
  box-shadow:0 24px 48px rgba(15,155,239,.22),0 0 0 1px var(--line);
}
.phone-frame img{width:100%;height:100%;object-fit:cover;}
.play-btn{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.92);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  box-shadow:0 12px 28px rgba(14,31,51,.24);transition:transform .2s ease,background .2s ease;
}
.play-btn:hover{transform:translate(-50%,-50%) scale(1.06);background:#fff;}
.play-btn svg{width:22px;height:22px;margin-left:3px;}
.duration-tag{position:absolute;right:12px;bottom:12px;background:rgba(14,31,51,.72);color:#fff;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;}
.mini-card{
  position:absolute;left:-26px;bottom:20px;display:flex;align-items:center;gap:12px;
  width:236px;padding:10px;border-radius:14px;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-2);transition:transform .2s ease,box-shadow .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.mini-card img{width:64px;height:44px;border-radius:10px;object-fit:cover;flex:none;}
.mini-card strong{display:block;font-size:13.5px;color:var(--ink);line-height:1.4;}
.mini-card span{display:block;font-size:12px;color:var(--muted);line-height:1.4;}

/* 横滑条 */
.strip-bar{padding:26px 0 30px;background:#fff;border-bottom:1px solid var(--line);}
.strip-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:220px;gap:16px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x proximity;}
.strip-scroll::-webkit-scrollbar{height:6px;}
.strip-scroll::-webkit-scrollbar-thumb{background:#D6E3F2;border-radius:6px;}
.strip-card{scroll-snap-align:start;display:block;border-radius:14px;overflow:hidden;background:#fff;border:1px solid var(--line);transition:transform .2s ease,box-shadow .2s ease;}
.strip-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.strip-card figure{margin:0;position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden;}
.strip-card img{width:100%;height:100%;object-fit:cover;transition:transform .22s cubic-bezier(.2,.6,.2,1);}
.strip-card:hover img{transform:scale(1.04);}
.strip-card p{margin:0;padding:10px 12px 12px;font-size:13.5px;color:var(--ink);font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}

/* 竖屏片段卡 */
.clip-card{height:100%;}
.clip-link{display:block;height:100%;border-radius:var(--radius-lg);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s cubic-bezier(.2,.6,.2,1),box-shadow .2s ease;}
.clip-link:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.clip-media{position:relative;aspect-ratio:9/16;overflow:hidden;background:var(--brand-soft);}
.clip-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s cubic-bezier(.2,.6,.2,1);}
.clip-link:hover .clip-media img{transform:scale(1.03);}
.clip-media .badge-time{position:absolute;right:10px;top:10px;}
.clip-media .badge-cat{position:absolute;left:10px;top:10px;}
.clip-overlay{
  position:absolute;left:0;right:0;bottom:0;padding:44px 14px 14px;color:#fff;
  background:linear-gradient(180deg,rgba(14,31,51,0) 0%,rgba(14,31,51,.86) 100%);
}
.clip-overlay h3{margin:0 0 6px;color:#fff;font-size:16px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clip-meta{display:flex;align-items:center;gap:14px;margin:0;font-size:12px;color:rgba(255,255,255,.88);}
.clip-meta span{display:inline-flex;align-items:center;gap:4px;}
.clip-meta svg{width:12px;height:12px;}

/* 编号榜单 */
.rank-list{border-top:1px dashed var(--line);}
.rank-row{
  display:flex;align-items:flex-start;gap:24px;padding:26px 20px;
  border-bottom:1px dashed var(--line);border-radius:14px;
  transition:background .2s ease,transform .2s ease;
}
.rank-row:hover{background:#F7FBFF;transform:translateX(2px);}
.rank-num{
  flex:none;width:64px;font-size:42px;font-weight:700;line-height:1;letter-spacing:-.04em;
  color:var(--brand);font-variant-numeric:tabular-nums;opacity:.9;
}
.rank-row:nth-child(-n+3) .rank-num{color:#E8A200;}
.rank-main{flex:1;min-width:0;}
.rank-main h3{margin:0 0 8px;font-size:19px;}
.rank-main p{margin:0 0 12px;font-size:14.5px;color:var(--text);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.rank-side{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:10px;padding-top:4px;}
.rank-score{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.stars{color:var(--lemon);letter-spacing:2px;font-size:13px;}
.rank-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.rank-link svg{width:14px;height:14px;transition:transform .2s ease;}
.rank-link:hover svg{transform:translateX(3px);}

/* 上手路径 */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step-card{
  position:relative;height:100%;padding:28px 24px 24px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-good{background:rgba(255,197,61,.2);color:#B87B00;}
.step-card h3{margin:0 0 10px;font-size:18px;}
.step-card p{margin:0;font-size:14.5px;color:var(--text);}

/* 最新信息 */
.info-card{height:100%;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s cubic-bezier(.2,.6,.2,1),box-shadow .2s ease;}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.info-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);}
.info-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s cubic-bezier(.2,.6,.2,1);}
.info-card:hover .info-thumb img{transform:scale(1.04);}
.info-body{display:flex;flex-direction:column;flex:1;padding:20px 22px 18px;}
.info-body .badge{align-self:flex-start;margin-bottom:12px;}
.info-title{margin:0 0 10px;font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-title a{color:var(--ink);}
.info-title a:hover{color:var(--brand);}
.info-desc{margin:0 0 16px;font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.info-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
.info-foot .meta{display:inline-flex;align-items:center;gap:6px;}
.info-foot svg{width:14px;height:14px;}
.read-more{font-weight:600;color:var(--brand);font-size:13.5px;}
.empty-state{
  grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);text-align:center;
}
.empty-state svg{width:44px;height:44px;color:var(--brand);opacity:.7;}
.empty-state p{margin:0;color:var(--muted);font-size:15px;}

/* 口碑条 */
.voice-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:300px;gap:20px;overflow-x:auto;padding:6px 4px 16px;scroll-snap-type:x mandatory;}
.voice-scroll::-webkit-scrollbar{height:6px;}
.voice-scroll::-webkit-scrollbar-thumb{background:#D6E3F2;border-radius:6px;}
.voice-card{scroll-snap-align:start;padding:22px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;}
.voice-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-3);}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-weight:600;flex:none;}
.voice-head strong{display:block;font-size:14.5px;color:var(--ink);line-height:1.4;}
.voice-head span{display:block;font-size:12px;color:var(--muted);}
.voice-card p{margin:0;font-size:14.5px;color:var(--text);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* CTA */
.cta-band{padding:0 0 84px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  padding:38px 40px;border-radius:20px;background:var(--brand-soft);border:1px dashed rgba(15,155,239,.4);
}
.cta-inner h2{font-size:26px;margin-bottom:10px;}
.cta-inner p{margin:0;color:var(--text);font-size:15px;max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;}
.faq-item.open{border-color:rgba(15,155,239,.45);box-shadow:var(--shadow-2);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;
  min-height:56px;padding:14px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:none;width:22px;height:22px;border-radius:50%;background:var(--brand-soft);transition:transform .2s ease,background .2s ease;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:10px;height:2px;}
.faq-icon::after{width:2px;height:10px;transition:opacity .2s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand);}
.faq-item.open .faq-icon::before{background:#fff;}
.faq-item.open .faq-icon::after{opacity:0;background:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:2px 22px 20px;background:#F7FAFE;font-size:15px;line-height:1.85;color:var(--text);}
.faq-a-inner p{margin:0;padding-top:16px;}

/* 页脚 */
.site-footer{background:var(--ink);color:#C7D5E5;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand{color:#fff;font-size:17px;}
.site-footer .brand:hover{color:#5AD0FF;}
.footer-brand p{margin:16px 0 0;font-size:14px;color:#9DB1C7;line-height:1.8;max-width:280px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:#C7D5E5;font-size:14px;}
.footer-col a:hover{color:#5AD0FF;}
.footer-bottom{
  margin-top:52px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3B9;
}

/* 响应式 */
@media (min-width:1025px){
  .grid-x>.large-3{grid-column:span 3;}
  .grid-x>.large-4{grid-column:span 4;}
  .grid-x>.large-5{grid-column:span 5;}
  .grid-x>.large-6{grid-column:span 6;}
  .grid-x>.large-7{grid-column:span 7;}
}
@media (min-width:641px) and (max-width:1024px){
  .grid-x>.medium-4{grid-column:span 4;}
  .grid-x>.medium-6{grid-column:span 6;}
  .grid-x>.medium-12{grid-column:span 12;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:34px;}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mini-card{left:auto;right:-14px;}
}
@media (max-width:992px){
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .hero{padding:44px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:26px;}
  .hero-visual{order:-1;}
  .phone-frame{width:min(260px,72%);}
  .mini-card{position:static;width:100%;margin-top:16px;left:auto;bottom:auto;}
  .cta-inner{padding:26px 22px;}
  .cta-inner h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .brand-text{font-size:16px;}
}
@media (max-width:640px){
  .grid-x{gap:16px;}
  .hscroll{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:78%;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;}
  .hscroll>.cell{grid-column:auto;scroll-snap-align:start;}
  .strip-scroll{grid-auto-columns:180px;}
  .rank-row{flex-direction:column;gap:12px;padding:22px 8px;}
  .rank-num{width:auto;font-size:36px;}
  .rank-side{align-items:flex-start;flex-direction:row;gap:16px;padding-top:0;}
  .step-grid{grid-template-columns:1fr;}
  .voice-scroll{grid-auto-columns:260px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .faq-q{font-size:16px;padding:12px 18px;}
  .faq-a-inner{padding:2px 18px 18px;}
  .hero-actions .btn{flex:1;}
}

/* roulang page: article */
:root{
  --brand:#0F9BEF;
  --brand-deep:#0B7FC7;
  --brand-soft:#5AD0FF;
  --accent:#FF6B4A;
  --accent-deep:#E85535;
  --lemon:#FFC53D;
  --ink:#0E1F33;
  --body:#3C4E63;
  --muted:#6B7C93;
  --bg:#F4F8FD;
  --card:#FFFFFF;
  --line:#E3EBF5;
  --soft:#EAF4FF;
  --tint:#F7FAFE;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;
  --shadow-1:0 1px 2px rgba(14,31,51,.06);
  --shadow-2:0 8px 24px rgba(14,31,51,.08);
  --shadow-3:0 16px 36px rgba(15,155,239,.18);
  --ease:cubic-bezier(.2,.6,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:640px){.container{padding:0 16px;}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;border-radius:999px;border:1px solid transparent;font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-3);}
.btn-primary:active{transform:translateY(1px);background:linear-gradient(135deg,#0F9BEF 0%,#5AD0FF 100%);}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--soft);color:var(--brand);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 36px rgba(255,107,74,.28);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--body);border-color:transparent;padding:0 12px;}
.btn-ghost:hover{color:var(--brand);background:var(--soft);}
.btn-lg{height:48px;padding:0 26px;font-size:15px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{width:28px;height:28px;flex:0 0 auto;}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:15px;font-weight:500;color:var(--body);text-decoration:none;white-space:nowrap;transition:color .2s var(--ease);}
.nav-links a:hover{color:var(--brand);text-decoration:none;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:14px;height:3px;border-radius:3px;background:var(--brand);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;}
.nav-search{position:relative;width:220px;}
.nav-search i{position:absolute;left:13px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);pointer-events:none;}
.nav-search input{width:100%;height:38px;border-radius:999px;border:1px solid var(--line);background:var(--bg);padding:0 14px 0 34px;font-size:14px;color:var(--ink);outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);}
.nav-search input::placeholder{color:#9AACC2;}
.nav-search input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,155,239,.15);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:0;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s var(--ease);}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 18px;}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-drawer .drawer-links a{display:flex;align-items:center;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:12px;font-size:14px;font-weight:600;color:var(--ink);background:var(--tint);}
.mobile-drawer .drawer-links a.active{color:var(--brand);border-color:rgba(15,155,239,.4);background:var(--soft);}
.mobile-drawer .drawer-links a:hover{text-decoration:none;border-color:var(--brand);}
.mobile-drawer .drawer-search{margin-top:12px;}
.mobile-drawer .drawer-search input{width:100%;height:44px;border-radius:12px;border:1px solid #D6E3F2;background:#fff;padding:0 14px;font-size:14px;}
@media (max-width:992px){
  .nav-links,.nav-search,.header-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .brand-text{font-size:16px;}
}
@media (max-width:640px){
  .header-actions .btn-accent{display:none;}
  .brand-text{max-width:7em;overflow:hidden;text-overflow:ellipsis;}
}

/* ---------- 页面头 ---------- */
.page-head{background:#F4F8FD;border-bottom:1px solid var(--line);padding:32px 0 40px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);text-decoration:none;}
.breadcrumb a:hover{color:var(--brand);text-decoration:none;}
.breadcrumb .sep{color:#B9C7D8;}
.breadcrumb em{font-style:normal;color:var(--body);max-width:36ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{font-size:34px;line-height:1.35;max-width:900px;letter-spacing:-.02em;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:14px;color:var(--muted);}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;}
.badge-cat{background:var(--soft);color:var(--brand);}
.badge-dot{background:rgba(14,31,51,.72);color:#fff;}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-row .meta-item i{font-size:13px;color:#9AACC2;}
@media (max-width:640px){
  .page-head{padding:22px 0 28px;}
  .article-title{font-size:24px;}
  .breadcrumb em{max-width:20ch;}
}

/* ---------- 正文区 ---------- */
.article-section{padding:48px 0 24px;}
.article-card{max-width:900px;margin:0 auto;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:48px;}
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--body);overflow-wrap:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{position:relative;font-size:24px;line-height:1.4;padding-left:16px;margin:40px 0 18px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:18px;border-radius:2px;background:var(--brand);}
.article-body h3{font-size:17px;font-weight:700;color:var(--brand);margin:28px 0 12px;}
.article-body h4{font-size:16px;margin:22px 0 10px;}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 1.2em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{border-left:3px solid var(--brand);background:var(--tint);border-radius:0 12px 12px 0;padding:16px 22px;margin:24px 0;color:var(--body);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:22px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body thead th{background:var(--soft);color:var(--ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:var(--tint);}
.article-body code{background:var(--tint);border:1px solid var(--line);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-deep);}
.article-body a{text-decoration:underline;text-underline-offset:3px;}
.article-empty{max-width:780px;margin:0 auto;text-align:center;padding:48px 20px;}
.article-empty i{font-size:40px;color:#BCD3EA;}
.article-empty h2{font-size:22px;margin:18px 0 10px;}
.article-empty p{color:var(--muted);margin-bottom:22px;}
@media (max-width:640px){
  .article-section{padding:24px 0 8px;}
  .article-card{padding:20px;border-radius:14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;margin:30px 0 14px;}
}

/* ---------- 标签行 ---------- */
.tag-row{max-width:900px;margin:28px auto 0;display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row .label{font-size:14px;color:var(--muted);}
.tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--body);text-decoration:none;transition:.2s var(--ease);}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--soft);text-decoration:none;transform:translateY(-1px);}

/* ---------- 上一篇 / 下一篇 ---------- */
.adjacent{max-width:900px;margin:32px auto 0;}
.adjacent .grid-x{margin-left:-12px;margin-right:-12px;}
.adjacent .cell{padding-left:12px;padding-right:12px;}
.adj-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;height:100%;text-decoration:none;box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.adj-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(15,155,239,.35);text-decoration:none;}
.adj-card i{font-size:16px;color:var(--brand);flex:0 0 auto;}
.adj-card .adj-text{min-width:0;}
.adj-card .adj-label{display:block;font-size:12px;color:var(--muted);margin-bottom:2px;}
.adj-card .adj-title{display:block;font-size:15px;font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.adj-card.next{justify-content:flex-end;text-align:right;}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 8px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-head h2{font-size:26px;letter-spacing:-.02em;}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--muted);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);text-decoration:none;white-space:nowrap;}
.link-more:hover{gap:10px;text-decoration:none;}
.related .grid-x{margin-left:-12px;margin-right:-12px;}
.related .cell{padding:12px;}
.post-card{display:flex;flex-direction:column;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);text-decoration:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);text-decoration:none;}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.post-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:8px;margin-top:auto;font-size:13px;color:var(--muted);}
.post-meta i{font-size:12px;color:#9AACC2;}

/* ---------- 返回入口 CTA ---------- */
.back-cta{margin:48px auto 0;max-width:900px;background:var(--soft);border-radius:20px;padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.back-cta h3{font-size:19px;margin-bottom:6px;}
.back-cta p{margin:0;font-size:14px;color:var(--body);}
.back-cta .btn-group{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:640px){
  .back-cta{padding:22px;flex-direction:column;align-items:flex-start;}
  .back-cta .btn-group{width:100%;}
  .back-cta .btn-group .btn{flex:1 1 auto;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1F33;color:#C7D5E5;padding:64px 0 24px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#93A9C0;max-width:300px;}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin:0 0 16px;letter-spacing:0;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#C7D5E5;text-decoration:none;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--brand-soft);text-decoration:none;}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding-top:20px;font-size:13px;color:#7E93AA;}
@media (max-width:992px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .site-footer{padding:44px 0 20px;margin-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* ---------- Foundation 覆盖 ---------- */
.button{background:transparent;}
.grid-x > .cell{min-width:0;}

/* roulang page: category2 */
:root{
  --brand:#0F9BEF;
  --brand-deep:#0B7FC7;
  --accent:#FF6B4A;
  --accent-deep:#E85A38;
  --lemon:#FFC53D;
  --ink:#0E1F33;
  --body:#3C4E63;
  --muted:#6B7C93;
  --bg:#F4F8FD;
  --card:#FFFFFF;
  --line:#E3EBF5;
  --blue-soft:#EAF4FF;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:12px;
  --shadow-1:0 1px 2px rgba(14,31,51,.06);
  --shadow-2:0 8px 24px rgba(14,31,51,.08);
  --shadow-3:0 16px 36px rgba(15,155,239,.18);
  --grad:linear-gradient(135deg,#0F9BEF,#5AD0FF);
  --ease:cubic-bezier(.2,.6,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--brand-deep);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
h1,h2,h3,h4{color:var(--ink);font-family:inherit;margin:0;letter-spacing:-.01em}
h1{font-size:40px;font-weight:700;line-height:1.25;letter-spacing:-.02em}
h2{font-size:30px;font-weight:700;line-height:1.3}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0}
button{font:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px;max-width:640px}
.link-more{font-size:15px;font-weight:600;white-space:nowrap}
.link-more i{font-size:12px;margin-left:6px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand);background:var(--blue-soft);border-radius:999px;padding:5px 14px;letter-spacing:.02em}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;text-decoration:none;
  transition:all .2s var(--ease);background:transparent;color:var(--ink);
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(15,155,239,.25)}
.btn-primary:hover{background:var(--brand-deep);color:#fff}
.btn-primary:active{background:var(--grad);color:#fff}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.25)}
.btn-accent:hover{background:var(--accent-deep);color:#fff}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--blue-soft);color:var(--brand-deep)}
.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:999px}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:28px;height:28px;flex-shrink:0}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.brand:hover .brand-text{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--body);text-decoration:none;
}
.nav-links a:hover{color:var(--brand);text-decoration:none}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:3px;border-radius:999px;
  background:var(--brand);opacity:0;transform:scaleX(.4);transition:all .2s var(--ease);
}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search i{position:absolute;left:15px;color:var(--muted);font-size:13px;pointer-events:none}
.nav-search input{
  width:220px;height:40px;margin:0;border-radius:999px;border:1px solid var(--line);
  background:var(--bg);padding:0 16px 0 38px;font-size:14px;color:var(--ink);
  transition:all .2s var(--ease);
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,155,239,.15)}
.link-login{font-size:15px;font-weight:500;color:var(--body)}
.link-login:hover{color:var(--brand);text-decoration:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-inner{padding:16px 32px 24px;display:flex;flex-wrap:wrap;gap:12px}
.mobile-drawer a{
  flex:1 1 45%;display:inline-flex;align-items:center;justify-content:center;min-height:44px;
  border-radius:12px;border:1px solid var(--line);font-size:15px;color:var(--ink);background:var(--bg);
}
.mobile-drawer a.active{background:var(--blue-soft);border-color:var(--brand);color:var(--brand);font-weight:600}
.mobile-drawer a:hover{text-decoration:none;border-color:var(--brand);color:var(--brand)}

/* ---------- 分类头部 ---------- */
.cat-hero{
  background-color:#EAF4FF;
  background-image:linear-gradient(180deg,rgba(244,248,253,.94),rgba(244,248,253,.99)),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:72px 0 56px;
}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:52px;align-items:center}
.hero-copy .eyebrow{margin-bottom:20px}
.hero-lead{font-size:17px;line-height:1.9;color:var(--body);margin-top:18px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-side{position:relative}
.hero-side img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);border:6px solid #fff;box-shadow:var(--shadow-2)}
.hero-note{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:12px 16px;box-shadow:var(--shadow-2);display:flex;align-items:center;gap:10px;
}
.hero-note i{color:var(--accent);font-size:15px}
.hero-note span{font-size:13px;color:var(--ink);font-weight:600}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:56px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.stat{background:#fff;padding:22px 24px}
.stat-num{font-size:32px;font-weight:700;color:var(--ink);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--brand);margin-left:4px}
.stat-label{font-size:13px;color:var(--muted);margin-top:6px}

/* ---------- 编号榜单 ---------- */
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:8px 28px}
.rank-list{list-style:none}
.rank-row{
  display:grid;grid-template-columns:64px 104px 1fr auto;
  grid-template-areas:"no thumb body side";
  gap:22px;align-items:center;padding:24px 0;border-bottom:1px dashed var(--line);
  transition:background .2s var(--ease);
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:#F7FBFF}
.rank-no{grid-area:no;font-size:40px;font-weight:800;line-height:1;color:#C8DAEA;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.rank-row.is-top .rank-no{color:var(--lemon)}
.rank-thumb{grid-area:thumb}
.rank-thumb img{width:104px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-sm)}
.rank-body{grid-area:body}
.rank-body h3{font-size:19px;margin-bottom:6px}
.rank-body p{font-size:14px;color:var(--body);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;background:var(--blue-soft);color:var(--brand);font-weight:500}
.tag--warm{background:#FFF1EC;color:var(--accent)}
.rank-side{grid-area:side;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.rating{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums}
.rating i{color:var(--lemon);font-size:13px}

/* ---------- 口碑条 ---------- */
.quote-bar{
  display:flex;align-items:center;gap:18px;background:var(--blue-soft);border-radius:var(--radius);
  padding:20px 24px;margin:22px 0;
}
.quote-bar .avatar{
  width:40px;height:40px;border-radius:50%;background:var(--brand);color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.quote-bar p{font-size:15px;color:var(--ink);line-height:1.75}
.quote-bar .quote-meta{font-size:12px;color:var(--muted);margin-top:4px}
.quote-bar .quote-rate{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink);white-space:nowrap}
.quote-bar .quote-rate i{color:var(--lemon)}

/* ---------- 图文交替 ---------- */
.split-row{align-items:center;margin-bottom:56px}
.split-row:last-child{margin-bottom:0}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-2)}
.split-copy h3{font-size:24px;margin-bottom:14px}
.split-copy p{font-size:16px;line-height:1.9;color:var(--body)}
.check-list{list-style:none;margin-top:20px}
.check-list li{position:relative;padding-left:30px;margin-bottom:14px;font-size:15px;line-height:1.8;color:var(--body)}
.check-list li i{position:absolute;left:0;top:5px;color:var(--brand);font-size:15px}
.check-list li strong{color:var(--ink);font-weight:600}

/* ---------- 提交表单 ---------- */
.submit-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-2);
  padding:40px;display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:center;
}
.submit-card h2{font-size:26px;margin-bottom:14px}
.submit-card .submit-text{font-size:15px;line-height:1.9;color:var(--body)}
.submit-points{list-style:none;margin-top:20px}
.submit-points li{display:flex;gap:10px;font-size:14px;color:var(--muted);margin-bottom:10px}
.submit-points li i{color:var(--brand);margin-top:6px;font-size:13px}
.field{margin-bottom:18px;text-align:left}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input{
  width:100%;height:44px;margin:0;border-radius:10px;border:1px solid #D6E3F2;background:#fff;
  padding:0 14px;font-size:15px;color:var(--ink);transition:all .2s var(--ease);
}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,155,239,.15)}
.form-note{font-size:13px;color:var(--muted);margin-top:12px;min-height:20px}
.form-note.is-ok{color:var(--brand);font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s var(--ease)}
.faq-item.is-open{box-shadow:var(--shadow-2)}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:14px 22px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}
.faq-q i{color:var(--brand);font-size:15px;transition:transform .2s var(--ease);flex-shrink:0}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);background:#F7FAFE}
.faq-a p{padding:16px 22px;font-size:15px;line-height:1.85;color:var(--body)}

/* ---------- CTA ---------- */
.cta-strip{
  background:var(--blue-soft);border-radius:20px;padding:32px 36px;
  display:flex;align-items:center;gap:28px;flex-wrap:wrap;justify-content:space-between;
}
.cta-strip h2{font-size:24px}
.cta-strip p{font-size:15px;color:var(--body);margin-top:8px;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C7D5E5;padding:64px 0 24px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-mark{width:26px;height:26px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;color:#9FB3C8;line-height:1.8;margin-top:16px;max-width:290px}
.footer-col h3{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col a{color:#C7D5E5;font-size:14px}
.footer-col a:hover{color:#5AD0FF;text-decoration:none}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8FA4BB;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-side{max-width:560px}
  .submit-card{grid-template-columns:1fr;gap:28px;padding:32px}
}
@media (max-width:992px){
  .nav-links{display:none}
  .nav-search{display:none}
  .link-login{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  h1{font-size:32px}
  h2{font-size:26px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .mobile-drawer .drawer-inner{padding:16px}
  .brand-text{font-size:16px}
  .hero-stats{margin-top:36px}
  .stat{padding:16px}
  .stat-num{font-size:26px}
  .panel{padding:4px 18px}
  .rank-row{
    grid-template-columns:52px 1fr;
    grid-template-areas:"no body" "thumb thumb" "side side";
    gap:14px;padding:22px 0;
  }
  .rank-no{font-size:34px}
  .rank-thumb img{width:100%;aspect-ratio:16/9}
  .rank-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .quote-bar{flex-wrap:wrap;gap:12px}
  .quote-bar .quote-rate{margin-left:0}
  .split-row{margin-bottom:36px}
  .split-copy h3{font-size:21px}
  .cta-strip{padding:26px 22px}
  .cta-strip h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
}
@media (max-width:640px){
  body{font-size:15px}
  h1{font-size:27px}
  h2{font-size:22px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:24px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-note{position:static;margin-top:14px;left:0;bottom:0}
  .hero-stats{grid-template-columns:1fr}
  .stat{display:flex;align-items:baseline;gap:12px;padding:14px 18px}
  .stat-label{margin-top:0}
  .submit-card{padding:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --blue:#0F9BEF;
  --blue-dark:#0A6FB0;
  --blue-soft:#EAF4FF;
  --blue-soft-2:#F4F8FD;
  --orange:#FF6B4A;
  --orange-dark:#E85535;
  --yellow:#FFC53D;
  --ink:#0E1F33;
  --text:#3C4E63;
  --muted:#6B7C93;
  --bg:#F4F8FD;
  --card:#FFFFFF;
  --line:#E3EBF5;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(14,31,51,.06);
  --sh-2:0 8px 24px rgba(14,31,51,.08);
  --sh-3:0 16px 36px rgba(15,155,239,.18);
  --hard:4px 4px 0 rgba(14,31,51,.9);
  --ease:cubic-bezier(.2,.6,.2,1);
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(15,155,239,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,155,239,.045) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{
  margin:0;
  color:var(--ink);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.02em;
}

p{margin:0;}

ul{margin:0;padding:0;list-style:none;}

a{color:var(--blue);text-decoration:none;transition:color .2s var(--ease);}

a:hover{color:var(--blue-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}

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

input,button,textarea{font-family:inherit;font-size:inherit;}

:focus-visible{outline:2px solid var(--blue);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 32px;
}

@media (min-width:1440px){
  .container{max-width:1280px;}
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}

.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--ink);
}

.brand:hover{text-decoration:none;color:var(--ink);}

.brand-mark{width:28px;height:28px;flex-shrink:0;}

.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}

.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  border-radius:var(--r-sm);
}

.nav-links a:hover{
  color:var(--blue);
  text-decoration:none;
  background:var(--blue-soft);
}

.nav-links a.active{
  color:var(--blue);
  font-weight:700;
}

.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--blue);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}

.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}

.nav-search svg{
  position:absolute;
  left:13px;
  width:16px;
  height:16px;
  color:var(--muted);
  pointer-events:none;
}

.nav-search input{
  width:220px;
  height:40px;
  padding:0 16px 0 38px;
  border:1.5px solid var(--line);
  border-radius:var(--pill);
  background:#F7FAFE;
  color:var(--ink);
  font-size:14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}

.nav-search input::placeholder{color:#93A3B8;}

.nav-search input:focus{
  outline:none;
  border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(15,155,239,.15);
  background:#fff;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--pill);
  border:2px solid var(--ink);
  font-size:15px;
  font-weight:700;
  line-height:1.2;
  cursor:pointer;
  white-space:nowrap;
  box-shadow:3px 3px 0 var(--ink);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease);
}

.btn:hover{
  text-decoration:none;
  transform:translate(-1px,-1px);
  box-shadow:5px 5px 0 var(--ink);
}

.btn:active{
  transform:translate(2px,2px);
  box-shadow:1px 1px 0 var(--ink);
}

.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{background:var(--blue-dark);color:#fff;}

.btn-accent{background:var(--orange);color:#fff;}
.btn-accent:hover{background:var(--orange-dark);color:#fff;}

.btn-ghost{background:#fff;color:var(--blue);}
.btn-ghost:hover{background:var(--blue-soft);color:var(--blue-dark);}

.btn-sm{padding:8px 16px;font-size:14px;box-shadow:2px 2px 0 var(--ink);}
.btn-sm:hover{box-shadow:3px 3px 0 var(--ink);}

.btn svg{width:15px;height:15px;}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border:2px solid var(--ink);
  border-radius:12px;
  background:#fff;
  box-shadow:3px 3px 0 var(--ink);
  cursor:pointer;
  padding:0;
}

.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  position:relative;
}

.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--ink);
  border-radius:2px;
}

.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.mobile-drawer{
  position:fixed;
  top:68px;
  left:0;
  right:0;
  z-index:55;
  background:#fff;
  border-bottom:2px solid var(--ink);
  padding:20px 0 26px;
  transform:translateY(-118%);
  transition:transform .28s var(--ease);
  max-height:calc(100vh - 68px);
  overflow-y:auto;
}

.mobile-drawer.is-open{transform:translateY(0);}

.mobile-drawer .drawer-search{
  display:flex;
  align-items:center;
  height:46px;
  border:1.5px solid var(--line);
  border-radius:var(--r-sm);
  padding:0 14px;
  background:#F7FAFE;
  margin-bottom:18px;
}

.mobile-drawer .drawer-search input{
  border:0;
  background:transparent;
  width:100%;
  height:100%;
  font-size:15px;
}

.mobile-drawer .drawer-search input:focus{outline:none;}

.drawer-tags{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}

.drawer-tags a{
  display:flex;
  align-items:center;
  min-height:44px;
  padding:0 14px;
  border:1.5px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
}

.drawer-tags a.active{
  background:var(--blue-soft);
  border-color:var(--blue);
  color:var(--blue);
}

.drawer-tags a:hover{text-decoration:none;border-color:var(--blue);}

/* ---------- 分类头部 ---------- */
.cat-hero{
  position:relative;
  padding:64px 0 52px;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(rgba(244,248,253,.94),rgba(244,248,253,.97)),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
}

.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:22px;
  flex-wrap:wrap;
}

.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--blue);}
.crumb span[aria-current]{color:var(--text);font-weight:600;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--pill);
  background:#fff;
  border:2px solid var(--ink);
  color:var(--blue);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  margin-bottom:18px;
  box-shadow:3px 3px 0 rgba(14,31,51,.12);
}

.cat-hero h1{
  font-size:40px;
  line-height:1.25;
  margin-bottom:18px;
}

.lead{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  margin-bottom:26px;
}

.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:34px;
  padding:20px 0 0;
  border-top:1px dashed #C9DDF2;
}

.stat-num{
  font-size:26px;
  font-weight:700;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}

.stat-label{
  font-size:13px;
  color:var(--muted);
}

/* ---------- 标签筛选 ---------- */
.tag-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}

.tag{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:var(--pill);
  border:1.5px solid var(--line);
  background:#fff;
  color:var(--text);
  font-size:14px;
  font-weight:600;
  cursor:pointer;
  transition:all .2s var(--ease);
}

.tag:hover{
  border-color:var(--blue);
  color:var(--blue);
  text-decoration:none;
  transform:translateY(-1px);
}

.tag.is-active{
  background:var(--blue);
  border-color:var(--blue);
  color:#fff;
}

.tag.is-active:hover{color:#fff;}

/* ---------- 区块 ---------- */
.section{padding:80px 0;}

.section-soft{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
  flex-wrap:wrap;
}

.section-head h2{
  font-size:30px;
  line-height:1.3;
}

.section-head h2::before{
  content:"";
  display:inline-block;
  width:6px;
  height:24px;
  border-radius:3px;
  background:var(--blue);
  margin-right:12px;
  vertical-align:-3px;
}

.section-head .sub{
  display:block;
  margin-top:8px;
  font-size:15px;
  font-weight:400;
  color:var(--muted);
  letter-spacing:0;
}

.more{
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
}

/* ---------- 分类主体布局 ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:34px;
  align-items:start;
}

.side-nav{
  position:sticky;
  top:92px;
  display:flex;
  flex-direction:column;
  gap:18px;
}

.side-box{
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--r-md);
  padding:20px 18px;
  box-shadow:4px 4px 0 rgba(14,31,51,.08);
}

.side-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px dashed #D6E3F2;
}

.side-list li + li{margin-top:4px;}

.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:40px;
  padding:6px 10px;
  border-radius:var(--r-sm);
  color:var(--text);
  font-size:15px;
  transition:all .2s var(--ease);
}

.side-list a:hover{
  background:var(--blue-soft);
  color:var(--blue);
  text-decoration:none;
}

.side-list a.is-current{
  background:var(--blue-soft);
  color:var(--blue);
  font-weight:700;
}

.side-list .count{
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}

.side-note{
  background:var(--blue-soft);
  border:2px solid var(--blue);
  border-radius:var(--r-md);
  padding:16px 18px;
  box-shadow:4px 4px 0 rgba(15,155,239,.18);
}

.side-note h3{
  font-size:15px;
  margin-bottom:8px;
}

.side-note p{
  font-size:14px;
  line-height:1.75;
  color:var(--text);
}

/* ---------- 竖屏片段卡 ---------- */
.clip-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}

.clip-card{
  background:#fff;
  border:1.5px solid var(--line);
  border-radius:var(--r-lg);
  padding:10px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}

.clip-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-3);
  border-color:#BFE1FA;
}

.clip-card:hover .clip-thumb img{transform:scale(1.03);}

.clip-card:hover .clip-overlay{background:linear-gradient(transparent,rgba(14,31,51,.92));}

.clip-link{display:block;color:inherit;}

.clip-link:hover{text-decoration:none;color:inherit;}

.clip-thumb{
  position:relative;
  aspect-ratio:9/16;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--blue-soft);
}

.clip-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s var(--ease);
}

.badge-dur{
  position:absolute;
  left:10px;
  top:10px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--pill);
  background:rgba(14,31,51,.72);
  color:#fff;
  font-size:12px;
  font-weight:600;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.badge-cat{
  position:absolute;
  right:10px;
  top:10px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--pill);
  background:rgba(255,255,255,.94);
  color:var(--blue);
  font-size:12px;
  font-weight:700;
}

.clip-play{
  position:absolute;
  left:50%;
  top:50%;
  z-index:2;
  width:52px;
  height:52px;
  margin:-26px 0 0 -26px;
  border-radius:50%;
  background:rgba(255,255,255,.9);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 18px rgba(14,31,51,.22);
  transition:transform .2s var(--ease);
}

.clip-play svg{width:18px;height:18px;color:var(--blue);margin-left:2px;}

.clip-card:hover .clip-play{transform:scale(1.08);}

.clip-overlay{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:2;
  padding:44px 14px 14px;
  background:linear-gradient(transparent,rgba(14,31,51,.86));
  transition:background .2s var(--ease);
}

.clip-title{
  font-size:16px;
  font-weight:700;
  line-height:1.45;
  color:#fff;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.clip-meta{
  margin-top:6px;
  font-size:12px;
  color:#C7D5E5;
  font-variant-numeric:tabular-nums;
}

/* ---------- 横滑条 ---------- */
.rail{
  position:relative;
}

.rail-track{
  display:flex;
  gap:18px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding:4px 4px 18px;
  margin:0 -4px;
  -webkit-overflow-scrolling:touch;
}

.rail-track::-webkit-scrollbar{height:8px;}
.rail-track::-webkit-scrollbar-track{background:#E9F1FA;border-radius:8px;}
.rail-track::-webkit-scrollbar-thumb{background:#BFDCF3;border-radius:8px;}

.rail-card{
  flex:0 0 268px;
  scroll-snap-align:start;
  background:#fff;
  border:1.5px solid var(--line);
  border-radius:var(--r-md);
  padding:10px;
  box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}

.rail-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
}

.rail-thumb{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--blue-soft);
  margin-bottom:10px;
}

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

.rail-card h3{
  font-size:15px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.rail-card h3 a{color:var(--ink);}
.rail-card h3 a:hover{color:var(--blue);}

.rail-meta{
  margin-top:6px;
  font-size:12px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}

.rail-hint{
  font-size:13px;
  color:var(--muted);
}

/* ---------- 步骤卡 ---------- */
.steps-row{margin-top:0;}

.step-card{
  height:100%;
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--r-md);
  padding:24px 22px;
  box-shadow:4px 4px 0 rgba(14,31,51,.1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}

.step-card:hover{
  transform:translateY(-4px);
  box-shadow:6px 6px 0 rgba(15,155,239,.32);
}

.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--yellow);
  color:var(--ink);
  border:2px solid var(--ink);
  font-size:16px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}

.step-card h3{font-size:19px;margin-bottom:10px;}

.step-card p{font-size:15px;line-height:1.8;color:var(--text);}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:820px;
}

.faq-item{
  background:#fff;
  border:2px solid var(--ink);
  border-radius:var(--r-md);
  box-shadow:4px 4px 0 rgba(14,31,51,.08);
  overflow:hidden;
}

.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:14px 22px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:background-color .2s var(--ease);
}

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

.faq-item summary:hover{background:#F7FBFF;}

.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--blue-soft);
  color:var(--blue);
  font-size:18px;
  font-weight:700;
  line-height:26px;
  text-align:center;
  transition:transform .25s var(--ease),background-color .2s var(--ease);
}

.faq-item[open] summary::after{
  content:"–";
  background:var(--blue);
  color:#fff;
  transform:rotate(180deg);
}

.faq-body{
  padding:4px 22px 20px;
  background:#F7FAFE;
  border-top:1px dashed #D6E3F2;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--blue-soft);
  border:2px solid var(--blue);
  border-radius:20px;
  padding:32px 36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  box-shadow:6px 6px 0 rgba(15,155,239,.16);
}

.cta-band h2{font-size:24px;margin-bottom:8px;}

.cta-band p{font-size:15px;color:var(--text);max-width:620px;}

.cta-actions{
  display:flex;
  gap:14px;
  flex-shrink:0;
  flex-wrap:wrap;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#C7D5E5;
  margin-top:80px;
  padding:64px 0 0;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}

.footer-brand .brand{color:#fff;margin-bottom:14px;}
.footer-brand .brand:hover{color:#fff;text-decoration:none;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:#93A6BC;max-width:280px;}

.footer-col h3{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:700;
}

.footer-col li + li{margin-top:10px;}

.footer-col a{
  color:#C7D5E5;
  font-size:14px;
}

.footer-col a:hover{color:#5AD0FF;text-decoration:none;}

.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(199,213,229,.18);
  padding:22px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8B9DB3;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-search input{width:170px;}
  .nav-links a{padding:10px 10px;font-size:14px;}
  .cat-layout{grid-template-columns:1fr;gap:26px;}
  .side-nav{position:static;flex-direction:row;overflow-x:auto;padding-bottom:8px;gap:14px;}
  .side-box{flex:0 0 auto;min-width:230px;}
  .side-note{flex:0 0 auto;min-width:250px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .clip-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}

@media (max-width:992px){
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero{padding:48px 0 40px;}
  .cat-hero h1{font-size:34px;}
}

@media (max-width:768px){
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .cat-hero h1{font-size:29px;}
  .lead{font-size:16px;}
  .hero-stats{gap:24px;}
  .stat-num{font-size:22px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}

@media (max-width:640px){
  .container{padding:0 16px;}
  .brand-text{font-size:16px;}
  .header-inner{gap:12px;height:64px;}
  .mobile-drawer{top:64px;}
  .clip-grid{
    display:flex;
    gap:14px;
    overflow-x:auto;
    scroll-snap-type:x mandatory;
    padding-bottom:14px;
    margin:0 -16px;
    padding-left:16px;
    padding-right:16px;
  }
  .clip-card{flex:0 0 68%;scroll-snap-align:start;}
  .rail-card{flex:0 0 76%;}
  .side-nav{margin:0 -16px;padding-left:16px;padding-right:16px;}
  .faq-item summary{font-size:16px;padding:12px 16px;}
  .faq-body{padding:4px 16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{font-size:12px;}
  .btn{padding:10px 18px;font-size:14px;}
}

@media (max-width:520px){
  .cat-hero h1{font-size:26px;}
  .tag{height:34px;padding:0 13px;font-size:13px;}
  .clip-card{flex:0 0 72%;}
  .hero-stats{gap:18px;}
}