/* roulang page: index */
:root{
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-ink:#14161A;
  --c-ink-2:#343A42;
  --c-muted:#6B7280;
  --c-line:#E5E8EE;
  --c-brand:#FF6A1A;
  --c-brand-d:#E85A0C;
  --c-brand-s:#FFF1E6;
  --c-accent:#12C8B4;
  --c-accent-s:#E4FBF7;
  --c-hot:#FFB020;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --r-s:8px; --r-m:12px; --r-l:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 8px 24px rgba(20,22,26,.10);
  --t:180ms cubic-bezier(.4,0,.2,1);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.75;
  color:var(--c-ink-2);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- 通用按钮 / 标签 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  cursor:pointer;transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 6px 16px rgba(255,106,26,.28)}
.btn-primary:hover{background:var(--c-brand-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,26,.32)}
.btn-secondary{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-secondary:hover{border-color:var(--c-ink);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1}
.badge-accent{background:var(--c-accent-s);color:#0A8C7E}
.badge-brand{background:var(--c-brand-s);color:var(--c-brand-d)}
.badge-hot{background:transparent;color:#9A6400;border:1px solid var(--c-hot)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-bg);border:1px solid var(--c-line);font-size:13px;color:var(--c-muted)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand)}
.link-arrow .arw{display:inline-block;transition:transform var(--t)}
.link-arrow:hover .arw{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid transparent;transition:box-shadow var(--t),border-color var(--t)}
.site-header.is-scrolled{box-shadow:var(--sh-2);border-bottom-color:var(--c-line)}
.brand-row{display:flex;align-items:center;gap:20px;height:60px}
@media(max-width:639px){.brand-row{height:56px;gap:12px}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:block;width:36px;height:36px;flex:0 0 36px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--c-muted);letter-spacing:.06em}
.main-nav{display:none;align-items:center;gap:4px;flex:1 1 auto;min-width:0}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;padding:0 14px;line-height:60px;font-size:15px;font-weight:500;color:var(--c-ink-2);transition:color var(--t)}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-link:hover{color:var(--c-brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{display:none;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg);transition:border-color var(--t),background var(--t)}
@media(min-width:1024px){.nav-search{display:flex;width:240px}}
@media(min-width:1280px){.nav-search{width:280px}}
.nav-search svg{flex:0 0 16px;color:var(--c-muted)}
.nav-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.nav-search input::placeholder{color:var(--c-muted)}
.nav-search:focus-within{border-color:var(--c-brand);background:#fff}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;background:#fff;cursor:pointer;transition:border-color var(--t)}
.nav-toggle:hover{border-color:var(--c-brand)}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media(min-width:1024px){.nav-toggle{display:none}}

/* 趋势条 */
.trend-bar{overflow:hidden;max-height:48px;transition:max-height var(--t),opacity var(--t),padding var(--t);border-top:1px solid var(--c-line)}
.site-header.is-scrolled .trend-bar{max-height:0;opacity:0;border-top-color:transparent}
.trend-inner{display:flex;align-items:center;gap:14px;height:47px}
.trend-label{flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-muted)}
.trend-scroll{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 48px),transparent 100%);-webkit-mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 48px),transparent 100%)}
.trend-scroll::-webkit-scrollbar{display:none}
.pill{flex:0 0 auto;display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-bg);font-size:13px;color:var(--c-ink-2);transition:all var(--t)}
.pill:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-s)}

/* 移动端抽屉 */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:120;
  transform:translateX(102%);transition:transform var(--t);display:flex;flex-direction:column;padding:20px;box-shadow:-8px 0 32px rgba(20,22,26,.16)}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(20,22,26,.5);opacity:0;pointer-events:none;transition:opacity var(--t);z-index:110}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-head strong{font-size:15px;color:var(--c-ink)}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);border-radius:10px;background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--c-muted)}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand)}
.drawer-search{display:flex;width:100%;margin-bottom:18px;background:#fff}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-m);font-size:15px;font-weight:500;color:var(--c-ink-2);transition:background var(--t),color var(--t)}
.drawer-nav a:hover{background:var(--c-brand-s);color:var(--c-brand-d)}
.drawer-nav a.is-active{background:var(--c-brand-s);color:var(--c-brand-d);font-weight:600}
.drawer-foot{display:flex;flex-direction:column;gap:12px;padding-top:16px;border-top:1px solid var(--c-line);margin-top:16px}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-ink);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 10px)}
.hero::after{content:"";position:absolute;right:-4%;bottom:-18%;width:24%;height:56%;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(255,106,26,.18),rgba(255,106,26,0) 70%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
@media(min-width:1024px){.hero-inner{grid-template-columns:1fr 1fr;gap:56px;padding:88px 0 96px;align-items:center}}
.hero-tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);font-size:12px;font-weight:600;letter-spacing:.06em;color:rgba(255,255,255,.86)}
.hero h1{margin:18px 0 0;font-size:28px;line-height:1.28;color:#fff;letter-spacing:-.02em}
@media(min-width:1024px){.hero h1{font-size:40px;line-height:1.2}}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.76);max-width:560px}
@media(min-width:1024px){.hero-sub{font-size:18px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:28px;font-weight:700;line-height:1.1;color:#fff}
.hero-stats span{font-size:12px;letter-spacing:.04em;color:rgba(255,255,255,.6)}
.hero-visual{position:relative}
.hero-shot{position:relative;aspect-ratio:16/10;border-radius:var(--r-l);overflow:hidden;background:#22262C;
  border:2px solid rgba(255,255,255,.9);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.hero-shot img{width:100%;height:100%;object-fit:cover}
.hero-chip{position:absolute;display:flex;flex-direction:column;gap:2px;background:#fff;border-radius:var(--r-m);
  padding:10px 14px;box-shadow:var(--sh-2);color:var(--c-ink)}
.hero-chip span{font-size:12px;color:var(--c-muted);letter-spacing:.02em}
.hero-chip strong{font-size:18px;font-weight:700}
.hero-chip-a{left:-8px;top:18%}
.hero-chip-b{right:-8px;bottom:12%}
@media(max-width:639px){.hero-chip-a{left:8px;top:10%}.hero-chip-b{right:8px;bottom:8%}}
.hero-cut{position:absolute;left:0;right:0;bottom:-1px;height:24px;background:var(--c-bg);
  clip-path:polygon(0 100%,100% 0,100% 100%)}

/* ---------- 板块通用 ---------- */
.sec{padding:56px 0}
@media(min-width:1024px){.sec{padding:88px 0}}
.sec-alt{background:#fff}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head h2{font-size:24px;line-height:1.3}
@media(min-width:1024px){.sec-head h2{font-size:26px;line-height:34px}}
.sec-head p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-muted)}
.sec-head-row{display:flex;flex-direction:column;gap:16px;max-width:none}
@media(min-width:768px){.sec-head-row{flex-direction:row;align-items:flex-end;justify-content:space-between}}

/* ---------- 三步上手 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px;counter-reset:step}
@media(min-width:900px){.steps{grid-template-columns:repeat(3,1fr)}}
.step-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;padding:24px;
  display:flex;flex-direction:column;gap:12px;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.step-num{font-size:40px;font-weight:700;line-height:1;color:var(--c-accent);letter-spacing:-.03em}
.step-icon{width:40px;height:40px;border-radius:10px;background:var(--c-accent-s);display:flex;align-items:center;justify-content:center;color:#0A8C7E}
.step-card h3{font-size:20px;line-height:28px}
.step-card p{font-size:14px;line-height:1.75;color:var(--c-muted)}
.step-card .link-arrow{margin-top:auto}
@media(max-width:899px){
  .steps{position:relative;padding-left:22px}
  .steps::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;border-left:2px dashed var(--c-line)}
  .step-card::before{content:"";position:absolute;left:-22px;top:32px;width:12px;height:12px;border-radius:50%;
    background:#fff;border:2px solid var(--c-accent)}
}

/* ---------- 频道入口 ---------- */
.channel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:900px){.channel-grid{grid-template-columns:repeat(2,1fr)}}
.channel-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-l);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.channel-media{aspect-ratio:21/9;background:#EDEFF3;overflow:hidden}
.channel-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.channel-card:hover .channel-media img{transform:scale(1.04)}
.channel-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.channel-body h3{font-size:20px;line-height:28px}
.channel-body p{font-size:14px;line-height:1.75;color:var(--c-muted)}
.channel-body .link-arrow{margin-top:auto}

/* ---------- 案例证明 ---------- */
.proof-layout{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:1024px){.proof-layout{grid-template-columns:1.55fr 1fr;align-items:stretch}}
.proof-main{display:grid;grid-template-columns:1fr;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-l);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
@media(min-width:768px){.proof-main{grid-template-columns:1.05fr 1fr}}
.proof-main:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.proof-media{aspect-ratio:4/3;background:#EDEFF3;overflow:hidden}
.proof-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.proof-main:hover .proof-media img{transform:scale(1.04)}
.proof-body{padding:24px;display:flex;flex-direction:column;gap:14px}
.proof-body h3{font-size:20px;line-height:28px}
.proof-body p{font-size:14px;line-height:1.8;color:var(--c-muted)}
.proof-points{display:flex;flex-wrap:wrap;gap:24px;margin-top:auto;padding-top:8px}
.proof-points li{display:flex;flex-direction:column;gap:2px}
.proof-points strong{font-size:22px;font-weight:700;color:var(--c-ink);letter-spacing:-.02em}
.proof-points span{font-size:12px;color:var(--c-muted);letter-spacing:.02em}
.proof-side{display:flex;flex-direction:column;gap:16px}
.proof-mini{display:flex;gap:14px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;padding:14px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.proof-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.proof-thumb{flex:0 0 88px;width:88px;height:66px;border-radius:10px;background:#EDEFF3;overflow:hidden}
.proof-thumb img{width:100%;height:100%;object-fit:cover}
.proof-mini-body{display:flex;flex-direction:column;gap:6px;min-width:0}
.proof-mini-body h3{font-size:16px;line-height:1.5;font-weight:600}
.proof-mini-body .meta{font-size:13px;color:var(--c-muted)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.faq-layout{grid-template-columns:7fr 5fr;gap:32px;align-items:start}}
.faq-list{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);padding:8px 24px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 0;font-size:16px;font-weight:600;color:var(--c-ink);transition:color var(--t)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:0 0 auto;font-size:22px;line-height:1;color:var(--c-muted);
  transition:transform var(--t),color var(--t)}
.faq-item summary:hover{color:var(--c-brand)}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--c-brand)}
.faq-body{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--c-muted);max-width:660px}
.faq-aside{position:static}
@media(min-width:1024px){.faq-aside{position:sticky;top:96px}}
.side-card{background:var(--c-ink);color:#fff;border-radius:var(--r-l);padding:26px;position:relative;overflow:hidden}
.side-card::after{content:"";position:absolute;right:-30px;bottom:-40px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.22),rgba(255,106,26,0) 70%)}
.side-card h3{color:#fff;font-size:20px;line-height:28px;position:relative}
.side-card p{position:relative;margin-top:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72)}
.side-card .ticks{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;position:relative}
.ticks li{position:relative;padding-left:24px;font-size:14px;line-height:1.6;color:rgba(255,255,255,.86)}
.ticks li::before{content:"";position:absolute;left:0;top:6px;width:12px;height:8px;
  border-left:2px solid var(--c-accent);border-bottom:2px solid var(--c-accent);transform:rotate(-45deg)}

/* ---------- 新闻列表 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.news-media{display:block;aspect-ratio:16/9;background:#EDEFF3;overflow:hidden}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;min-width:0}
.news-title{font-size:17px;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{transition:color var(--t)}
.news-card:hover .news-title a{color:var(--c-brand)}
.news-sum{font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted)}
.meta-more{display:inline-flex;align-items:center;gap:4px;font-weight:600;color:var(--c-ink-2);transition:color var(--t)}
.meta-more .arw{transition:transform var(--t)}
.meta-more:hover{color:var(--c-brand)}
.meta-more:hover .arw{transform:translateX(4px)}
.news-empty{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:260px;padding:32px;border:1px dashed var(--c-line);border-radius:var(--r-l);background:var(--c-surface);text-align:center}
.news-empty p{font-size:15px;color:var(--c-muted)}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);border-radius:20px;padding:32px 24px;color:#fff;
  display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr 1fr;padding:48px;gap:48px;align-items:center}}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 10px)}
.cta-band::after{content:"";position:absolute;right:-40px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.2),rgba(255,106,26,0) 70%)}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:24px;line-height:1.3}
@media(min-width:1024px){.cta-copy h2{font-size:26px;line-height:34px}}
.cta-copy > p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:520px}
.cta-copy .ticks{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cta-form{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:520px){.cta-form .field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}}
.field{display:flex;flex-direction:column}
.field label{font-size:13px;font-weight:600;color:rgba(255,255,255,.72);margin-bottom:6px;letter-spacing:.02em}
.field input,.field select{width:100%;height:48px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color var(--t),background var(--t)}
.field input::placeholder{color:rgba(255,255,255,.4)}
.field select option{color:#14161A}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-brand);background:rgba(255,255,255,.1)}
.cta-form .btn{width:100%}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.68);margin-top:0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:rgba(255,255,255,.6)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:360px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color var(--t)}
.footer-col a:hover{color:var(--c-brand)}
.footer-note{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-note strong{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;display:flex;flex-direction:column;gap:14px}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}
.to-top{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);font-size:13px;color:rgba(255,255,255,.8);align-self:flex-start;transition:all var(--t)}
.to-top:hover{border-color:var(--c-brand);color:#fff;background:rgba(255,106,26,.16)}
@media(min-width:768px){.to-top{align-self:auto}}

/* roulang page: article */
:root{
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-ink:#14161A;
  --c-ink-2:#343A42;
  --c-muted:#6B7280;
  --c-line:#E5E8EE;
  --c-brand:#FF6A1A;
  --c-brand-d:#E85A0C;
  --c-brand-s:#FFF1E6;
  --c-accent:#12C8B4;
  --c-accent-d:#0E9A8B;
  --c-accent-s:#E4FBF7;
  --c-hot:#FFB020;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 8px 24px rgba(20,22,26,.10);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.02em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.tabular{font-variant-numeric:tabular-nums}

/* ============ 顶栏 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .18s var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:block;width:36px;height:36px;border-radius:10px;overflow:hidden;flex:none}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text strong{font-size:16px;color:var(--c-ink);letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.02em}
.main-nav{display:none;align-items:center;gap:2px;margin-left:6px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{position:relative;padding:8px 12px;border-radius:var(--r-s);font-size:15px;font-weight:500;color:var(--c-ink-2);transition:color .18s var(--ease),background .18s var(--ease)}
.nav-link:hover{color:var(--c-brand);background:var(--c-brand-s)}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-brand)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-form{display:none;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
@media (min-width:1024px){.search-form{display:flex}}
.search-form:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-brand-s)}
.search-form .search-icon{width:16px;height:16px;color:var(--c-muted);flex:none}
.search-form input{border:0;outline:0;background:transparent;width:158px;font-size:14px}
.header-cta{display:none}
@media (min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;background:#fff;transition:border-color .18s var(--ease),color .18s var(--ease)}
.nav-toggle:hover{border-color:var(--c-brand);color:var(--c-brand)}
@media (min-width:1024px){.nav-toggle{display:none}}

/* 热搜趋势条 */
.trend-bar{display:none;border-top:1px solid var(--c-line);background:#FBFBFC}
@media (min-width:1024px){.trend-bar{display:block}}
.trend-inner{display:flex;align-items:center;gap:16px;height:44px}
.trend-label{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-ink);flex:none}
.trend-label svg{width:14px;height:14px;color:var(--c-brand)}
.trend-scroll{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 92%,transparent);mask-image:linear-gradient(90deg,#000 92%,transparent)}
.trend-scroll::-webkit-scrollbar{display:none}
.trend-chip{flex:none;font-size:13px;line-height:1;padding:7px 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;color:var(--c-ink-2);transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
.trend-chip:hover{color:var(--c-brand);border-color:var(--c-brand);background:var(--c-brand-s)}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(20,22,26,.45);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:80;transform:translateX(103%);transition:transform .26s var(--ease);display:flex;flex-direction:column;overflow-y:auto;padding:20px;box-shadow:-12px 0 40px rgba(20,22,26,.16)}
.mobile-drawer.is-open{transform:none}
@media (min-width:1024px){.mobile-drawer,.drawer-mask{display:none}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:700;color:var(--c-ink)}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);border-radius:10px;display:inline-flex;align-items:center;justify-content:center;color:var(--c-muted)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:#FBFBFC;margin-bottom:20px}
.drawer-search input{border:0;background:transparent;outline:0;flex:1;font-size:14px}
.drawer-group{margin-bottom:20px}
.drawer-group h4{font-size:12px;letter-spacing:.08em;color:var(--c-muted);font-weight:600;margin-bottom:10px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:var(--r-m);font-size:15px;color:var(--c-ink-2);background:#FBFBFC;margin-bottom:8px;transition:background .18s var(--ease),color .18s var(--ease)}
.drawer-link:hover{background:var(--c-brand-s);color:var(--c-brand)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-line)}
.drawer-quick{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.drawer-quick a{font-size:13px;color:var(--c-muted)}
.drawer-quick a:hover{color:var(--c-brand)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(-1px)}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;transform:none}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 6px 16px rgba(255,106,26,.24)}
.btn-primary:hover{background:var(--c-brand-d)}
.btn-outline{background:#fff;color:var(--c-ink);border-color:var(--c-ink)}
.btn-outline:hover{background:var(--c-ink);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12)}
.btn-soft{background:var(--c-brand-s);color:var(--c-brand-d)}
.btn-soft:hover{background:#FFE3CE}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand)}
.text-link svg{width:15px;height:15px;transition:transform .18s var(--ease)}
.text-link:hover svg{transform:translateX(4px)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);padding:20px 0 0}
.breadcrumb a{transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#C9CED8}
.breadcrumb .current{display:block;color:var(--c-ink-2);max-width:48ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{padding:18px 0 26px;border-bottom:1px solid var(--c-line)}
.article-head h1{font-size:27px;line-height:1.34;margin:14px 0 18px;max-width:940px}
@media (min-width:1024px){.article-head h1{font-size:34px;line-height:1.3}}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;letter-spacing:.02em}
.chip-accent{background:var(--c-accent-s);color:var(--c-accent-d)}
.chip-brand{background:var(--c-brand-s);color:var(--c-brand-d)}
.chip-hot{border:1px solid var(--c-hot);color:#B47400;background:transparent}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--c-muted)}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C9CED8}
.meta-actions{margin-left:auto;display:flex;gap:10px}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--c-muted);transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
.icon-btn:hover{color:var(--c-brand);border-color:var(--c-brand);background:var(--c-brand-s)}
.icon-btn svg{width:16px;height:16px}

/* ============ 布局 ============ */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px;padding:34px 0 48px}
@media (min-width:1024px){.article-layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;padding:44px 0 64px}}

/* ============ 正文排版 ============ */
.article-content{max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink-2);word-wrap:break-word}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 20px}
.article-content h2{position:relative;font-size:22px;line-height:1.4;margin:40px 0 16px;padding-left:16px}
.article-content h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--c-brand)}
.article-content h3{font-size:19px;line-height:1.5;margin:28px 0 12px}
.article-content h4{font-size:17px;margin:22px 0 10px}
.article-content ul,.article-content ol{margin:0 0 20px;padding-left:1.4em;line-height:1.9}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin:6px 0}
.article-content strong{color:var(--c-ink)}
.article-content a{color:var(--c-accent-d);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--c-brand)}
.article-content blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--c-accent);background:var(--c-accent-s);border-radius:0 var(--r-m) var(--r-m) 0;font-size:16px;line-height:1.85;color:var(--c-ink-2)}
.article-content img{border-radius:var(--r-m);margin:24px auto;height:auto}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-content .scroll-x{overflow-x:auto;margin:8px 0 24px;border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-content th{background:var(--c-ink);color:#fff;font-weight:600;text-align:left;padding:12px 14px;white-space:nowrap}
.article-content td{padding:12px 14px;border-bottom:1px solid var(--c-line);vertical-align:top}
.article-content tbody tr:last-child td{border-bottom:0}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

/* 空态 */
.empty-state{max-width:760px;background:#fff;border:1px dashed #D3D8E0;border-radius:14px;padding:44px 28px;text-align:center}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px}

/* ============ 侧栏 ============ */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:14px;padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 .bar{width:4px;height:15px;border-radius:2px;background:var(--c-brand);display:inline-block}
@media (min-width:1024px){.side-card.is-sticky{position:sticky;top:96px}}
.toc-list li{margin-bottom:2px}
.toc-list a{display:block;font-size:14px;line-height:1.6;color:var(--c-muted);padding:7px 10px;border-left:2px solid var(--c-line);border-radius:0 var(--r-s) var(--r-s) 0;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
.toc-list a:hover{color:var(--c-brand);background:var(--c-brand-s)}
.toc-list a.is-current{color:var(--c-brand-d);font-weight:600;border-left-color:var(--c-brand);background:var(--c-brand-s)}
.toc-empty{font-size:13px;color:var(--c-muted)}
.rank-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px dashed var(--c-line)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-num{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--c-brand);width:18px;flex:none;line-height:1.65}
.rank-list a{font-size:14px;line-height:1.65;color:var(--c-ink-2);transition:color .18s var(--ease)}
.rank-list a:hover{color:var(--c-brand)}
.cat-list li+li{margin-top:8px}
.cat-list a{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r-m);font-size:14px;color:var(--c-ink-2);transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease)}
.cat-list a:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-s)}
.cat-list .count{font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.side-cta{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;border:0}
.side-cta::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(30deg,rgba(255,255,255,.045) 0 2px,transparent 2px 9px)}
.side-cta::after{content:"";position:absolute;right:-60px;bottom:-70px;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,26,.55),rgba(255,106,26,0) 70%);opacity:.55}
.side-cta-inner{position:relative;z-index:1}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:8px;display:block}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72);margin-bottom:16px}

/* ============ 文末 ============ */
.article-foot{display:flex;flex-direction:column;gap:32px;padding:0 0 64px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .label{font-size:13px;color:var(--c-muted)}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);font-size:13px;color:var(--c-ink-2);transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease)}
.tag:hover{color:var(--c-brand);border-color:var(--c-brand);background:var(--c-brand-s)}
.foot-block-title{font-size:20px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.next-prev{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.next-prev{grid-template-columns:repeat(2,1fr)}}
.nav-card{display:flex;flex-direction:column;gap:6px;padding:18px 20px;border:1px solid var(--c-line);border-radius:14px;background:#fff;transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}
.nav-card:hover{transform:translateY(-3px);border-color:var(--c-brand-s);box-shadow:var(--sh-2)}
.nav-card .kicker{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--c-accent-d)}
.nav-card strong{font-size:16px;color:var(--c-ink)}
.nav-card span{font-size:13.5px;color:var(--c-muted);line-height:1.65}
.rel-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:14px;overflow:hidden;transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease)}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--c-brand-s)}
.thumb{position:relative;aspect-ratio:16/9;background:#EEF0F3;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.card:hover .thumb img{transform:scale(1.04)}
.thumb-badge{position:absolute;left:12px;top:12px;height:24px;display:inline-flex;align-items:center;padding:0 10px;border-radius:var(--r-pill);background:rgba(20,22,26,.82);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--c-brand)}
.card-desc{font-size:14px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--c-muted);padding-top:10px;border-top:1px solid var(--c-line)}

/* CTA 带 */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);border-radius:var(--r-l);padding:32px 24px;color:#fff;display:grid;gap:26px}
@media (min-width:1024px){.cta-band{grid-template-columns:1.5fr 1fr;align-items:center;padding:44px 44px}}
.cta-band::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 9px)}
.cta-band::after{content:"";position:absolute;right:-80px;bottom:-110px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,26,.5),rgba(255,106,26,0) 70%);opacity:.5}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:12px}
@media (min-width:1024px){.cta-band h2{font-size:27px}}
.cta-band p{color:rgba(255,255,255,.74);font-size:15px;line-height:1.8}
.check-list{display:flex;flex-wrap:wrap;gap:10px 20px;margin-top:16px}
.check-list li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.86)}
.check-list svg{width:15px;height:15px;color:var(--c-accent);flex:none}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:56px 0 0;position:relative;overflow:hidden}
.site-footer::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(30deg,rgba(255,255,255,.035) 0 2px,transparent 2px 9px)}
.site-footer .container{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:rgba(255,255,255,.5)}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34ch}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-brand)}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.52)}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.72);transition:color .18s var(--ease)}
.to-top:hover{color:var(--c-brand)}

/* roulang page: category1 */
:root{
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-ink:#14161A;
  --c-ink-2:#343A42;
  --c-muted:#6B7280;
  --c-line:#E5E8EE;
  --c-brand:#FF6A1A;
  --c-brand-d:#E85A0C;
  --c-brand-s:#FFF1E6;
  --c-accent:#12C8B4;
  --c-accent-d:#0B8C7E;
  --c-accent-s:#E4FBF7;
  --c-hot:#FFB020;
  --r-s:8px;
  --r-m:12px;
  --r-card:14px;
  --r-l:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 8px 24px rgba(20,22,26,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --t:180ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{color:var(--c-ink);font-weight:700;letter-spacing:-.02em;line-height:1.25}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--c-brand);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:999}
.skip-link:focus{left:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-stuck{box-shadow:var(--sh-2);border-color:transparent}
.header-inner{display:flex;align-items:center;gap:20px;height:56px}
@media (min-width:1024px){.header-inner{height:60px;gap:28px}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:flex;flex:0 0 auto}
.logo-mark svg{display:block;border-radius:10px}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.02em}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--c-muted)}
.main-nav{display:none;align-items:center;gap:2px}
@media (min-width:1024px){.main-nav{display:flex}}
.nav-link{
  position:relative;padding:18px 14px;font-size:15px;font-weight:600;
  color:var(--c-ink-2);transition:color var(--t);white-space:nowrap;
}
.nav-link:hover{color:var(--c-brand)}
.nav-link.is-active{color:var(--c-ink)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-brand);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:none;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
@media (min-width:1024px){.search-box{display:flex}}
.search-box:focus-within{border-color:var(--c-brand);background:#fff;box-shadow:0 0 0 3px var(--c-brand-s)}
.search-box svg{flex:0 0 auto;color:var(--c-muted)}
.search-box input{border:0;background:transparent;outline:none;width:170px;font-size:14px;color:var(--c-ink)}
.search-box input::placeholder{color:#9AA1AC}
.header-actions .btn-primary{display:none}
@media (min-width:1024px){.header-actions .btn-primary{display:inline-flex}}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff;
  cursor:pointer;transition:var(--t);
}
.menu-toggle:hover{border-color:var(--c-brand);color:var(--c-brand)}
@media (min-width:1024px){.menu-toggle{display:none}}
.trend-bar{display:none;border-top:1px solid var(--c-line);background:#fff}
@media (min-width:1024px){.trend-bar{display:block}}
.trend-inner{display:flex;align-items:center;gap:14px;height:44px}
.trend-label{
  flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--c-brand);
  padding-right:12px;border-right:1px solid var(--c-line);
}
.trend-scroll{
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,#000 90%,transparent);
  mask-image:linear-gradient(90deg,#000 90%,transparent);
}
.trend-scroll::-webkit-scrollbar{display:none}

/* ---------- Chips / tags ---------- */
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;white-space:nowrap;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;
  font-size:12.5px;font-weight:600;color:var(--c-ink-2);transition:var(--t);
}
.chip:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-s)}
.chip.is-active{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.chip.is-active:hover{background:var(--c-brand-d);color:#fff}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--c-accent-s);color:var(--c-accent-d);
}
.tag.is-brand{background:var(--c-brand-s);color:var(--c-brand-d)}
.tag.is-hot{border:1px solid var(--c-hot);color:#A96C00;background:#fff}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);font-weight:600;
  cursor:pointer;transition:var(--t);white-space:nowrap;
}
.btn-primary{background:var(--c-brand);color:#fff;height:48px;padding:0 26px;font-size:15px}
.btn-primary:hover{background:var(--c-brand-d);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{
  background:transparent;color:#fff;border-color:rgba(255,255,255,.55);
  height:48px;padding:0 24px;font-size:15px;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-secondary{
  background:#fff;border-color:var(--c-ink);color:var(--c-ink);
  height:40px;padding:0 20px;border-radius:10px;font-size:14px;
}
.btn-secondary:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand)}
.link-arrow svg{transition:transform var(--t)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;background:rgba(20,22,26,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(340px,86vw);
  background:#fff;padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform var(--t);
  display:flex;flex-direction:column;gap:18px;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--t);
}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg)}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px}
.drawer-title{font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--c-muted)}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--c-line);
  font-size:15px;font-weight:600;color:var(--c-ink-2);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-brand)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:18px;border-top:1px solid var(--c-line)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:18px 20px;font-size:13px;color:var(--c-muted)}
@media (min-width:1024px){.breadcrumb{padding:20px 32px}}
.breadcrumb a{transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb .sep{color:#C4C9D2}
.breadcrumb .current{color:var(--c-ink-2);font-weight:600}

/* ---------- Category hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff}
.cat-hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(20,22,26,.84),rgba(20,22,26,.72)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 9px);
}
.cat-hero-inner{position:relative;display:grid;gap:32px;padding:44px 20px 48px}
@media (min-width:1024px){
  .cat-hero-inner{grid-template-columns:minmax(0,1fr) 380px;align-items:center;gap:48px;padding:64px 32px 72px}
}
.eyebrow{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-brand-s);color:var(--c-brand-d);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.cat-hero h1{margin-top:16px;font-size:28px;line-height:1.28;color:#fff;letter-spacing:-.02em}
@media (min-width:1024px){.cat-hero h1{font-size:32px;line-height:42px}}
.cat-hero-lead{margin-top:14px;font-size:16px;line-height:1.8;color:#C7CCD4;max-width:620px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-cards{display:grid;gap:12px;grid-template-columns:1fr}
@media (min-width:640px){.stat-cards{grid-template-columns:repeat(3,minmax(0,1fr))}}
.stat-cards li{
  background:#fff;color:var(--c-ink);border-radius:var(--r-card);
  padding:16px 18px;box-shadow:var(--sh-2);
}
.stat-cards strong{
  display:block;font-size:26px;font-weight:700;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-cards span{display:block;margin-top:6px;font-size:12px;font-weight:600;letter-spacing:.02em;color:var(--c-muted)}

/* ---------- Sections ---------- */
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section--tight{padding:40px 0}
@media (min-width:1024px){.section--tight{padding:56px 0}}
.section-head{
  display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;
  margin-bottom:28px;
}
.section-head h2{font-size:23px;line-height:1.3}
@media (min-width:1024px){.section-head h2{font-size:26px}}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--c-muted);max-width:680px}

/* ---------- Filter bar ---------- */
.filter-bar{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.filter-inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.filter-list{display:flex;flex-wrap:wrap;gap:8px}
.filter-meta{margin-left:auto;font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}

/* ---------- Layout ---------- */
.layout{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:1024px){.layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:40px}}

/* ---------- Entry list ---------- */
.entry-list{display:flex;flex-direction:column;gap:16px}
.entry{
  position:relative;display:grid;grid-template-columns:1fr;gap:16px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px;transition:var(--t);overflow:hidden;
}
@media (min-width:640px){.entry{grid-template-columns:160px minmax(0,1fr);gap:18px;align-items:flex-start}}
.entry::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-brand);
  transform:scaleY(0);transform-origin:top;transition:transform var(--t);
}
.entry:hover{background:var(--c-bg);border-color:var(--c-brand-s);transform:translateY(-3px);box-shadow:var(--sh-2)}
.entry:hover::before{transform:scaleY(1)}
.thumb{position:relative;border-radius:var(--r-m);overflow:hidden;background:#EEF0F4;aspect-ratio:16/10;width:100%}
@media (min-width:640px){.thumb{width:160px;height:96px;aspect-ratio:auto;flex:0 0 160px}}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.entry:hover .thumb img{transform:scale(1.04)}
.entry-body{min-width:0}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.entry h3{font-size:17px;font-weight:600;line-height:1.5;letter-spacing:-.01em}
.entry h3 a{transition:color var(--t)}
.entry h3 a:hover{color:var(--c-brand)}
.entry-summary{
  margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;
  font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums;
}
.entry-meta .dot{width:3px;height:3px;border-radius:50%;background:#C4C9D2}
.entry-meta .time{font-weight:600;color:var(--c-ink-2)}
.entry-meta .detail{margin-left:auto;font-weight:600;color:var(--c-brand)}
.entry-meta .detail:hover{color:var(--c-brand-d)}

/* ---------- Sidebar ---------- */
.side-col{display:flex;flex-direction:column;gap:20px}
@media (min-width:1024px){.side-col{position:sticky;top:96px}}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px}
.side-card h3{font-size:16px;font-weight:700;letter-spacing:-.01em}
.side-card .side-desc{margin-top:8px;font-size:13.5px;line-height:1.7;color:var(--c-muted)}
.field{margin-top:14px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--c-ink-2);margin-bottom:6px}
.field input,.field select{
  width:100%;height:44px;border:1px solid var(--c-line);border-radius:10px;
  padding:0 12px;background:#fff;font-size:14px;color:var(--c-ink);outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field input:focus,.field select:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px var(--c-brand-s)}
.form-note{margin-top:10px;font-size:12px;line-height:1.7;color:var(--c-muted)}
.side-links li{border-bottom:1px solid var(--c-line)}
.side-links li:last-child{border-bottom:0}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 0;font-size:14px;font-weight:600;color:var(--c-ink-2);transition:color var(--t);
}
.side-links a:hover{color:var(--c-brand)}
.side-links .count{font-size:12px;font-weight:600;color:var(--c-muted);font-variant-numeric:tabular-nums}
.side-card.is-dark{
  background:var(--c-ink);border-color:transparent;color:#fff;
  background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 9px);
}
.side-card.is-dark h3{color:#fff}
.side-card.is-dark .side-desc{color:#A6ADB8}
.side-card.is-dark .btn-primary{margin-top:16px}
.rate-list li{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--c-line);font-size:13.5px}
.rate-list li:last-child{border-bottom:0}
.rate-list .name{color:var(--c-ink-2);font-weight:600}
.rate-list .val{color:var(--c-brand-d);font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- Pagination ---------- */
.pagination{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:32px}
.pagination a,.pagination span{
  display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;
  padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:var(--t);font-variant-numeric:tabular-nums;
}
.pagination a:hover{border-color:var(--c-brand);color:var(--c-brand)}
.pagination .is-current{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.pagination .is-disable{opacity:.45;pointer-events:none}

/* ---------- Steps ---------- */
.steps-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;transition:var(--t);
}
.step:hover{border-color:var(--c-brand-s);box-shadow:var(--sh-2);transform:translateY(-3px)}
.step-num{font-size:40px;font-weight:700;line-height:1;color:var(--c-accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.step h3{margin-top:14px;font-size:17px}
.step p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-muted)}
.step .link-arrow{margin-top:14px}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:24px;grid-template-columns:1fr}
@media (min-width:1024px){.faq-wrap{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start}}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:0 20px;transition:border-color var(--t),box-shadow var(--t)}
.faq-item[open]{border-color:var(--c-brand-s);box-shadow:var(--sh-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;cursor:pointer;list-style:none;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;color:var(--c-muted);font-size:20px;line-height:1;transition:transform var(--t),color var(--t)}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--c-brand)}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--c-muted);border-top:1px solid var(--c-line);padding-top:16px}
.faq-side{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;
}
@media (min-width:1024px){.faq-side{position:sticky;top:96px}}
.faq-side h3{font-size:18px}
.faq-side p{margin-top:10px;font-size:14px;line-height:1.7;color:var(--c-muted)}
.faq-side .btn{margin-top:18px}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-ink);color:#fff;border-radius:20px;
  padding:32px 24px;
  background-image:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 2px,transparent 2px 9px);
}
@media (min-width:1024px){.cta-band{padding:48px 48px}}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:260px;height:260px;pointer-events:none;
  background:radial-gradient(circle,rgba(255,106,26,.18),transparent 70%);
}
.cta-grid{position:relative;display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:1024px){.cta-grid{grid-template-columns:minmax(0,1fr) 320px;align-items:center;gap:48px}}
.cta-band h2{font-size:23px;color:#fff}
@media (min-width:1024px){.cta-band h2{font-size:26px}}
.cta-band .cta-desc{margin-top:12px;font-size:15px;line-height:1.8;color:#A6ADB8}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#D5D9DF}
.cta-points svg{flex:0 0 auto;margin-top:4px;color:var(--c-accent)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:1024px){.cta-actions{flex-direction:column;align-items:stretch}}
.cta-actions .btn-secondary{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.cta-actions .btn-secondary:hover{background:#fff;border-color:#fff;color:var(--c-ink)}

/* ---------- Footer ---------- */
.site-footer{background:#14161A;color:#9AA1AC;margin-top:64px;padding:56px 0 24px;border-top:4px solid var(--c-brand)}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-text strong{color:#fff}
.footer-brand .logo-text em{color:#8B929C}
.footer-desc{font-size:13.5px;line-height:1.8;color:#8B929C;max-width:380px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:-.01em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#9AA1AC;transition:color var(--t)}
.footer-col a:hover{color:var(--c-brand)}
.footer-note{font-size:13.5px;line-height:1.9;color:#8B929C}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;
}
.to-top{color:#fff;font-weight:600;transition:color var(--t)}
.to-top:hover{color:var(--c-brand)}

/* roulang page: category2 */
:root{
  --c-bg:#F6F7F9;
  --c-surface:#FFFFFF;
  --c-ink:#14161A;
  --c-ink-2:#343A42;
  --c-muted:#6B7280;
  --c-line:#E5E8EE;
  --c-brand:#FF6A1A;
  --c-brand-d:#E85A0C;
  --c-brand-s:#FFF1E6;
  --c-accent:#12C8B4;
  --c-accent-s:#E4FBF7;
  --c-hot:#FFB020;
  --r-s:8px;
  --r-m:12px;
  --r-l:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,22,26,.06);
  --sh-2:0 8px 24px rgba(20,22,26,.10);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.02em;line-height:1.3;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .18s cubic-bezier(.4,0,.2,1);}
img{max-width:100%;display:block;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .18s cubic-bezier(.4,0,.2,1),background-color .18s cubic-bezier(.4,0,.2,1),box-shadow .18s cubic-bezier(.4,0,.2,1),border-color .18s cubic-bezier(.4,0,.2,1),color .18s cubic-bezier(.4,0,.2,1);
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-brand);color:#fff;box-shadow:0 6px 16px rgba(255,106,26,.28);}
.btn-primary:hover{background:var(--c-brand-d);transform:translateY(-2px);box-shadow:0 10px 22px rgba(255,106,26,.32);}
.btn-second{background:#fff;color:var(--c-ink);border:1px solid var(--c-ink);border-radius:10px;}
.btn-second:hover{background:var(--c-ink);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand);
}
.btn-link .arrow{transition:transform .18s cubic-bezier(.4,0,.2,1);}
.btn-link:hover .arrow{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--c-accent-s);color:#0B8C7E;
}
.tag-brand{background:var(--c-brand-s);color:var(--c-brand-d);}
.tag-hot{background:transparent;color:#B57400;border:1px solid var(--c-hot);}
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px;}
.section-head h2{font-size:26px;line-height:1.35;}
.section-head .section-desc{margin-top:8px;font-size:15px;color:var(--c-muted);max-width:640px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .18s cubic-bezier(.4,0,.2,1),border-color .18s cubic-bezier(.4,0,.2,1);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);border-bottom-color:var(--c-line);}
.header-top{display:flex;align-items:center;height:60px;transition:height .18s cubic-bezier(.4,0,.2,1);}
.site-header.is-scrolled .header-top{height:52px;}
@media (max-width:1023px){.header-top{height:56px;}.site-header.is-scrolled .header-top{height:52px;}}
.header-inner{display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{display:inline-flex;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text strong{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.logo-text em{font-style:normal;font-size:12px;color:var(--c-muted);letter-spacing:.08em;}
.main-nav{display:flex;align-items:center;gap:26px;flex:1 1 auto;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .18s cubic-bezier(.4,0,.2,1);
}
.nav-link:hover{color:var(--c-brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg);
  transition:border-color .18s cubic-bezier(.4,0,.2,1),background-color .18s cubic-bezier(.4,0,.2,1);
}
.nav-search:focus-within{border-color:var(--c-brand);background:#fff;}
.nav-search svg{flex:0 0 auto;color:var(--c-muted);}
.nav-search input{
  width:150px;border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-muted);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);
  align-items:center;justify-content:center;color:var(--c-ink);
}
.menu-toggle:hover{border-color:var(--c-brand);color:var(--c-brand);}
.trend-bar{border-top:1px solid var(--c-line);background:#fff;}
.trend-inner{display:flex;align-items:center;gap:14px;height:44px;overflow:hidden;}
.trend-label{
  flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-brand);
  padding-right:14px;border-right:1px solid var(--c-line);
}
.trend-scroll{
  display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;
  -webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);
  mask-image:linear-gradient(90deg,#000 88%,transparent 100%);
}
.trend-scroll::-webkit-scrollbar{display:none;}
.trend-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;height:28px;padding:0 12px;
  font-size:13px;color:var(--c-ink-2);background:var(--c-bg);
  border:1px solid var(--c-line);border-radius:var(--r-pill);white-space:nowrap;
  transition:all .18s cubic-bezier(.4,0,.2,1);
}
.trend-pill:hover{border-color:var(--c-brand);color:var(--c-brand);background:var(--c-brand-s);}
@media (max-width:1023px){
  .main-nav,.nav-search,.trend-bar{display:none;}
  .menu-toggle{display:inline-flex;}
}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,22,26,.45);opacity:0;visibility:hidden;
  transition:opacity .18s cubic-bezier(.4,0,.2,1),visibility .18s;z-index:200;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:#fff;z-index:210;
  transform:translateX(100%);transition:transform .22s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;gap:20px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);display:inline-flex;align-items:center;justify-content:center;}
.drawer-close:hover{border-color:var(--c-brand);color:var(--c-brand);}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);background:var(--c-bg);}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav .drawer-group{font-size:12px;font-weight:600;letter-spacing:.06em;color:var(--c-muted);padding:8px 0 4px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:var(--r-m);font-size:15px;font-weight:500;color:var(--c-ink-2);
  background:var(--c-bg);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--c-brand-s);color:var(--c-brand-d);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-links{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--c-muted);}
.drawer-links a:hover{color:var(--c-brand);}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-bottom:20px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.breadcrumb ol li{display:flex;align-items:center;gap:8px;}
.breadcrumb ol li+li::before{content:"/";color:rgba(255,255,255,.42);}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb [aria-current="page"]{color:#fff;}

/* ---------- 分类页头横幅 ---------- */
.page-hero{
  position:relative;
  min-height:240px;
  display:flex;align-items:center;
  background:
    linear-gradient(180deg,rgba(20,22,26,.72) 0%,rgba(20,22,26,.72) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.28) 0%,rgba(255,106,26,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;padding-top:40px;padding-bottom:40px;}
.page-hero h1{
  font-size:32px;line-height:1.32;color:#fff;
  text-shadow:0 2px 12px rgba(0,0,0,.35);
}
.hero-lead{
  margin-top:12px;font-size:16px;line-height:1.7;color:rgba(255,255,255,.84);max-width:560px;
}
@media (max-width:639px){
  .page-hero h1{font-size:26px;}
  .page-hero .container{padding-top:28px;padding-bottom:28px;}
}

/* ---------- 数据条 ---------- */
.stat-strip{background:#fff;border-bottom:1px solid var(--c-line);}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:24px 0;
}
.stat-item{display:flex;flex-direction:column;gap:4px;}
.stat-num{
  font-size:28px;font-weight:700;color:var(--c-ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;
}
.stat-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--c-muted);margin-left:2px;}
.stat-label{font-size:13px;color:var(--c-muted);}
@media (max-width:1023px){.stat-grid{grid-template-columns:repeat(2,1fr);gap:16px;}}
@media (max-width:639px){.stat-grid{padding:20px 0;}}

/* ---------- 礼包卡片网格 ---------- */
.gift-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
@media (max-width:1279px){.gift-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
@media (max-width:1023px){.gift-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (max-width:639px){.gift-grid{grid-template-columns:1fr;}}
.gift-card{
  display:flex;flex-direction:column;background:#fff;border-radius:var(--r-l);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s cubic-bezier(.4,0,.2,1),box-shadow .18s cubic-bezier(.4,0,.2,1);
}
.gift-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.gift-thumb{position:relative;aspect-ratio:16/9;background:#EDEFF3;overflow:hidden;}
.gift-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s cubic-bezier(.4,0,.2,1);}
.gift-card:hover .gift-thumb img{transform:scale(1.04);}
.gift-thumb .thumb-badge{
  position:absolute;left:12px;top:12px;height:24px;display:inline-flex;align-items:center;
  padding:0 10px;border-radius:var(--r-pill);background:rgba(20,22,26,.72);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.gift-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;}
.gift-body h3{font-size:17px;line-height:1.5;}
.gift-card:hover .gift-body h3{color:var(--c-brand);}
.gift-body .gift-desc{
  font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.gift-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.gift-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;margin-top:2px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-muted);
}
.gift-foot .btn-link{font-size:13px;}

/* ---------- 要点速览 ---------- */
.keyfacts{
  position:relative;background:var(--c-ink);color:#fff;border-radius:var(--r-l);
  padding:36px;overflow:hidden;
}
.keyfacts::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.keyfacts::after{
  content:"";position:absolute;right:-30px;bottom:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.18) 0%,rgba(255,106,26,0) 68%);
  pointer-events:none;
}
.keyfacts-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:36px;}
@media (max-width:1023px){.keyfacts{padding:26px 20px;}.keyfacts-inner{grid-template-columns:1fr;gap:28px;}}
.fact-col{display:grid;grid-template-columns:140px 1fr;gap:20px;align-items:start;}
@media (max-width:639px){.fact-col{grid-template-columns:1fr;gap:12px;}}
.fact-col h3{font-size:18px;color:#fff;line-height:1.45;}
.fact-col h3 span{
  display:block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-accent);margin-bottom:6px;
}
.fact-list{display:flex;flex-direction:column;gap:12px;}
.fact-list li{
  position:relative;padding-left:20px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.78);
}
.fact-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--c-brand);
}
.fact-divider{display:none;}
@media (min-width:1024px){.fact-divider{display:block;position:absolute;left:50%;top:36px;bottom:36px;width:1px;background:rgba(255,255,255,.12);}}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:24px;}
.faq-list{background:#fff;border-radius:var(--r-l);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--c-ink);
  transition:color .18s cubic-bezier(.4,0,.2,1),background-color .18s cubic-bezier(.4,0,.2,1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-brand);background:var(--c-brand-s);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;color:var(--c-muted);line-height:1;
  transition:transform .18s cubic-bezier(.4,0,.2,1),color .18s cubic-bezier(.4,0,.2,1);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--c-brand);}
.faq-body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--c-muted);}
.faq-body p{max-width:820px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--c-ink);border-radius:var(--r-l);
  padding:40px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(30deg,rgba(255,255,255,.04) 0 1px,transparent 1px 12px);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,106,26,.18) 0%,rgba(255,106,26,0) 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;display:grid;grid-template-columns:1.3fr 1fr;gap:36px;align-items:center;
}
@media (max-width:1023px){.cta-band{padding:28px 22px;}.cta-inner{grid-template-columns:1fr;gap:24px;}}
.cta-inner h2{font-size:26px;color:#fff;line-height:1.35;}
.cta-inner .cta-sub{margin-top:10px;font-size:15px;line-height:1.7;color:rgba(255,255,255,.76);max-width:520px;}
.cta-perks{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;}
.cta-perks li{position:relative;padding-left:22px;font-size:14px;color:rgba(255,255,255,.82);}
.cta-perks li::before{
  content:"";position:absolute;left:0;top:6px;width:12px;height:12px;border-radius:3px;
  background:var(--c-accent);
}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
@media (max-width:1023px){.cta-actions{justify-content:flex-start;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);margin-top:56px;}
@media (min-width:1024px){.site-footer{margin-top:88px;}}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:56px 0 36px;
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 28px;}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .logo-text strong{color:#fff;}
.footer-brand .logo-text em{color:rgba(255,255,255,.55);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:360px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--c-brand);}
.footer-note{font-size:13px;line-height:1.9;color:rgba(255,255,255,.58);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.8);font-size:13px;
  transition:all .18s cubic-bezier(.4,0,.2,1);
}
.to-top:hover{border-color:var(--c-brand);color:var(--c-brand);transform:translateY(-2px);}