/* roulang page: index */
:root{
  --brand:#E8542F;
  --brand-dark:#C13F1E;
  --brand-soft:#FDEDE7;
  --brand-ink:#7A2410;
  --ink:#241F2E;
  --ink-2:#4A4358;
  --ink-3:#857D93;
  --accent:#F2B035;
  --accent-2:#16967A;
  --bg:#FBF8F4;
  --surface:#FFFFFF;
  --surface-2:#F5F0EA;
  --line:#EBE3DA;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,31,46,.05),0 8px 24px rgba(36,31,46,.06);
  --sh-2:0 14px 40px rgba(36,31,46,.10);
  --focus:0 0 0 4px rgba(232,84,47,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-body-font-family:var(--font-sans);
  --bs-body-color:var(--ink-2);
  --bs-body-bg:var(--bg);
  --bs-primary:#E8542F;
  --bs-border-radius:14px;
  --bs-link-color:#C13F1E;
  --bs-link-hover-color:#7A2410;
  --bs-border-color:var(--line);
  --bs-emphasis-color:var(--ink);
}
*,*::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:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;margin:0 0 .5em;line-height:1.32;letter-spacing:0}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.26;font-weight:700}
h2{font-size:clamp(24px,3vw,36px);line-height:1.32}
h3{font-size:21px;line-height:1.4}
h4{font-size:17.5px;line-height:1.45}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.45em}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-s)}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto}
section{position:relative}
.sec{padding:88px 0}
.sec-alt{background:var(--surface-2)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.sec-head h2{margin-bottom:8px}
.sec-head p{margin:0;color:var(--ink-3);font-size:15px;max-width:640px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand-ink);background:var(--brand-soft);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-weight:600;font-size:16px;
  padding:13px 28px;border-radius:var(--r-pill);
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-solid{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(232,84,47,.24)}
.btn-solid:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-solid:active{transform:translateY(0);box-shadow:0 4px 12px rgba(232,84,47,.22)}
.btn-line{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-line:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-white{background:#fff;color:var(--brand-ink)}
.btn-white:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-outline-white:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-ink);font-size:15px}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover span{transform:translateX(4px)}
.link-underline{color:var(--ink);font-weight:600;border-bottom:1px solid rgba(36,31,46,.28);padding-bottom:2px}
.link-underline:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 徽章 ---------- */
.badge-cat{display:inline-block;background:var(--brand-soft);color:var(--brand-ink);border-radius:var(--r-pill);font-size:12.5px;font-weight:600;padding:4px 12px;line-height:1.6}
.badge-soft{display:inline-block;background:rgba(36,31,46,.05);color:var(--ink-2);border-radius:var(--r-pill);font-size:12.5px;font-weight:600;padding:4px 12px}
.badge-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--brand-soft);color:var(--brand-ink);font-weight:700;font-size:15px;flex:0 0 38px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,248,244,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(251,248,244,.98);backdrop-filter:saturate(160%) blur(8px)}
.topbar{display:flex;align-items:center;gap:20px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700}
.logo:hover{color:var(--ink)}
.logo-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(140deg,var(--brand),#F07A45);display:flex;align-items:center;justify-content:center;flex:0 0 32px}
.logo-mark svg{width:18px;height:18px}
.logo-text{font-size:17px;line-height:1.25;white-space:nowrap;letter-spacing:-.01em}
.logo-text small{display:block;font-size:11.5px;font-weight:500;color:var(--ink-3);letter-spacing:.06em}
.search-wrap{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.search-box{
  position:relative;display:flex;align-items:center;
  width:clamp(300px,42vw,620px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:var(--focus)}
.search-box svg.mag{width:18px;height:18px;flex:0 0 18px;color:var(--ink-3)}
.search-box input{
  flex:1 1 auto;min-width:0;border:none;outline:none;background:transparent;
  font-size:14.5px;color:var(--ink);padding:8px 10px;line-height:1.5;
}
.search-box input::placeholder{color:var(--ink-3)}
.search-box button{
  flex:0 0 auto;border:none;background:var(--brand);color:#fff;font-weight:600;font-size:14px;
  border-radius:var(--r-pill);padding:8px 18px;cursor:pointer;transition:background-color .2s ease;
}
.search-box button:hover{background:var(--brand-dark)}
.head-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.head-login{font-size:14.5px;font-weight:600;color:var(--ink-2);white-space:nowrap}
.head-login:hover{color:var(--brand)}
.btn-sm-x{padding:9px 20px;font-size:14.5px}
.nav-chips{border-top:1px solid var(--line);padding:10px 0}
.chips-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.chips-scroll::-webkit-scrollbar{display:none}
.chip{
  display:inline-block;white-space:nowrap;font-size:14.5px;font-weight:600;color:var(--ink-2);
  background:var(--surface-2);border:1px solid transparent;border-radius:var(--r-pill);
  padding:8px 18px;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand-ink)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.mobile-tools{display:none;align-items:center;gap:8px;flex:0 0 auto}
.icon-btn{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.icon-btn svg{width:20px;height:20px}
.search-bar-mobile{display:none;padding:0 0 12px}
.search-bar-mobile.is-open{display:block}
.search-bar-mobile .search-box{width:100%;max-width:100%}
.offcanvas-x{--bs-offcanvas-width:320px}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-x .offcanvas-body{padding:20px}
.offcanvas-x .m-chip{
  display:flex;align-items:center;justify-content:space-between;
  font-size:16px;font-weight:600;color:var(--ink);line-height:52px;
  border-bottom:1px solid var(--line);padding:0 4px;
}
.offcanvas-x .m-chip.active{color:var(--brand)}
.offcanvas-x .m-chip svg{width:16px;height:16px;color:var(--ink-3)}

/* ---------- Hero ---------- */
.hero{padding:72px 0 84px;background:
  radial-gradient(900px 420px at 88% -10%, rgba(242,176,53,.14), transparent 62%),
  radial-gradient(700px 380px at 4% 6%, rgba(232,84,47,.08), transparent 60%),
  var(--bg);
  overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero h1{margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.trust-list{display:flex;flex-wrap:wrap;gap:12px 26px;padding-top:24px;border-top:1px solid var(--line)}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14.5px;color:var(--ink-2);font-weight:500}
.trust-item svg{width:18px;height:18px;color:var(--accent-2);flex:0 0 18px}
.hero-media{position:relative}
.hero-figure{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--sh-2);border:1px solid var(--line);background:var(--surface-2);
  aspect-ratio:4/3;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-badge{
  position:absolute;right:-8px;bottom:-8px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);box-shadow:var(--sh-2);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.hero-badge .dot{width:10px;height:10px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 4px rgba(22,150,122,.14)}
.hero-badge b{display:block;font-size:15px;color:var(--ink);font-weight:700;line-height:1.3}
.hero-badge small{color:var(--ink-3);font-size:12.5px}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px}
.pain-left h2{margin-bottom:14px}
.pain-left p{color:var(--ink-3);font-size:15px}
.pain-list{display:flex;flex-direction:column;gap:16px}
.pain-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pain-item:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2)}
.pain-item h4{margin:0 0 4px}
.pain-item p{margin:0;font-size:14.5px;color:var(--ink-3);line-height:1.75}
.pain-item:nth-child(2){margin-left:28px}
.pain-item:nth-child(4){margin-left:28px}

/* ---------- 图文交替 ---------- */
.zz-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:34px 0}
.zz-row.reverse .zz-media{order:2}
.zz-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);aspect-ratio:16/11;background:var(--surface-2)}
.zz-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.zz-row:hover .zz-media img{transform:scale(1.03)}
.zz-text h3{margin-bottom:12px}
.zz-text p{color:var(--ink-2);font-size:15.5px}
.zz-points{list-style:none;padding:0;margin:0}
.zz-points li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);margin-bottom:10px}
.zz-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 4px var(--brand-soft);
}

/* ---------- 时间轴 ---------- */
.timeline{margin-top:52px;border-top:1px solid var(--line);padding-top:44px}
.tl-track{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.tl-track::before{content:"";position:absolute;left:20px;right:20px;top:19px;height:2px;background:linear-gradient(90deg,var(--brand-soft),var(--line));z-index:0}
.tl-item{position:relative;z-index:1}
.tl-dot{
  width:40px;height:40px;border-radius:50%;background:#fff;border:2px solid var(--brand);
  color:var(--brand-ink);font-weight:700;display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:16px;box-shadow:0 0 0 6px var(--bg);
}
.sec-alt .tl-dot{box-shadow:0 0 0 6px var(--surface-2)}
.tl-item h4{margin-bottom:6px}
.tl-item p{font-size:14.5px;color:var(--ink-3);margin:0;line-height:1.75}

/* ---------- 数据带 ---------- */
.stats-band{background:var(--ink);color:#EDE8F2;padding:76px 0}
.stats-band h2{color:#fff}
.stats-band .sec-head p{color:rgba(237,232,242,.68)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}
.stat-item .num{font-size:clamp(32px,3.6vw,44px);font-weight:700;color:var(--accent-2);line-height:1.1;letter-spacing:-.02em}
.stat-item .num small{font-size:.5em;font-weight:600;margin-left:2px;color:rgba(237,232,242,.7)}
.stat-item p{margin:8px 0 0;font-size:14px;color:rgba(237,232,242,.72);line-height:1.7}
.progress-block{margin-top:52px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:24px 26px}
.progress-head{display:flex;justify-content:space-between;font-size:14.5px;color:rgba(237,232,242,.8);margin-bottom:10px}
.progress-bar-x{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);overflow:hidden}
.progress-bar-x i{display:block;height:100%;width:86%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--accent),var(--brand))}

/* ---------- 证言 ---------- */
.tst-track{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;scroll-snap-type:x mandatory}
.tst-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:26px;box-shadow:var(--sh-1);scroll-snap-align:start;
  transition:transform .2s ease,box-shadow .2s ease;
}
.tst-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tst-card.offset{margin-top:26px}
.tst-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{
  width:48px;height:48px;border-radius:50%;flex:0 0 48px;
  background:linear-gradient(140deg,var(--brand-soft),#FBE3D9);
  color:var(--brand-ink);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:16px;
}
.tst-head b{display:block;color:var(--ink);font-size:15.5px}
.tst-head small{color:var(--ink-3);font-size:13px}
.tst-quote{margin:0 0 14px;font-size:15px;color:var(--ink-2);line-height:1.8}
.tst-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--accent-2);font-weight:600}
.tst-meta svg{width:15px;height:15px}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--brand);color:#fff;padding:72px 0;overflow:hidden}
.cta-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.9);margin:0;max-width:620px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-deco{position:relative;height:170px}
.cta-deco i{
  position:absolute;border-radius:var(--r-l);border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.09);backdrop-filter:blur(2px);
}
.cta-deco i:nth-child(1){width:190px;height:110px;left:0;top:0}
.cta-deco i:nth-child(2){width:150px;height:86px;left:74px;top:58px;background:rgba(255,255,255,.16)}
.cta-deco i:nth-child(3){width:88px;height:88px;border-radius:50%;right:6px;top:18px;background:rgba(242,176,53,.35);border-color:rgba(242,176,53,.6)}

/* ---------- 最新信息 ---------- */
.news-card{
  height:100%;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2)}
.news-cover{position:relative;display:block;aspect-ratio:16/9;background:var(--surface-2);overflow:hidden}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover .badge-cat{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-ink)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{font-size:17.5px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--ink)}
.news-body h3 a:hover{color:var(--brand)}
.news-body .excerpt{
  font-size:14.5px;color:var(--ink-3);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.news-foot time{font-size:13px;color:var(--ink-3)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r);background:var(--surface);
  padding:56px 24px;text-align:center;color:var(--ink-3);
}
.empty-state svg{width:38px;height:38px;color:var(--ink-3);margin-bottom:12px}
.empty-state p{margin:0 0 14px;font-size:15px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-x .accordion-item{
  border:1px solid var(--line);border-radius:var(--r)!important;background:var(--surface);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-x .accordion-button{
  background:var(--surface);color:var(--ink);font-size:17px;font-weight:600;
  padding:18px 56px 18px 22px;line-height:1.55;border:none;box-shadow:none;
}
.accordion-x .accordion-button:not(.collapsed){background:var(--surface-2);color:var(--ink);box-shadow:inset 3px 0 0 var(--brand)}
.accordion-x .accordion-button:focus{box-shadow:var(--focus)}
.accordion-x .accordion-button::after{
  content:"";position:absolute;right:22px;width:14px;height:14px;background:none;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .22s ease;top:26px;
}
.accordion-x .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-x .accordion-body{padding:4px 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;background:var(--surface-2)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(245,240,234,.72);padding:64px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-col h5{color:#fff;font-size:15.5px;margin-bottom:16px;font-weight:700}
.footer-col p{font-size:14px;line-height:1.8;margin-bottom:14px;color:rgba(245,240,234,.66)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{width:30px;height:30px;flex:0 0 30px}
.footer-brand b{color:#fff;font-size:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(245,240,234,.72);font-size:14px}
.footer-links a:hover{color:var(--accent)}
.footer-grid .footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.08);padding-left:36px}
.footer-search{display:flex;align-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-pill);padding:4px 4px 4px 14px}
.footer-search input{flex:1 1 auto;min-width:0;background:transparent;border:none;outline:none;color:#fff;font-size:14px;padding:7px 8px}
.footer-search input::placeholder{color:rgba(245,240,234,.45)}
.footer-search button{border:none;background:var(--brand);color:#fff;font-size:13.5px;font-weight:600;border-radius:var(--r-pill);padding:7px 16px;cursor:pointer}
.footer-search button:hover{background:var(--brand-dark)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:rgba(245,240,234,.52)}
.footer-bottom a{color:rgba(245,240,234,.52)}
.footer-bottom a:hover{color:var(--accent)}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;border:none;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,background-color .2s ease;z-index:1040;
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--brand-dark)}
.to-top svg{width:20px;height:20px}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .sec{padding:76px 0}
  .hero-grid{gap:40px}
}
@media (max-width:991.98px){
  .search-wrap,.head-actions{display:none}
  .mobile-tools{display:flex}
  .topbar{justify-content:space-between}
  .nav-chips{display:none}
  .hero{padding:48px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:-1}
  .hero-figure{aspect-ratio:16/9}
  .pain-grid{grid-template-columns:1fr;gap:32px}
  .pain-item:nth-child(2),.pain-item:nth-child(4){margin-left:0}
  .zz-row{grid-template-columns:1fr;gap:26px;padding:22px 0}
  .zz-row.reverse .zz-media{order:0}
  .tl-track{grid-template-columns:repeat(2,1fr);gap:28px}
  .tl-track::before{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .tst-track{grid-template-columns:1fr}
  .tst-card.offset{margin-top:0}
  .cta-inner{grid-template-columns:1fr}
  .cta-deco{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid .footer-col + .footer-col{border-left:none;padding-left:0}
}
@media (max-width:575.98px){
  .sec{padding:52px 0}
  .sec-head{margin-bottom:30px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:16px}
  .hero-cta{gap:10px}
  .btn-x{width:100%;padding:13px 20px}
  .hero-badge{right:8px;bottom:8px;padding:10px 14px}
  .trust-list{gap:10px 18px;padding-top:20px}
  .tl-track{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:24px}
  .stat-item{border-left:none;border-top:1px solid rgba(255,255,255,.14);padding:16px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .tst-card{padding:20px}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: article */
:root{
  --brand:#E8542F;
  --brand-dark:#C13F1E;
  --brand-soft:#FDEDE7;
  --brand-ink:#7A2410;
  --ink:#241F2E;
  --ink-2:#4A4358;
  --ink-3:#857D93;
  --accent:#F2B035;
  --accent-2:#16967A;
  --bg:#FBF8F4;
  --surface:#FFFFFF;
  --surface-2:#F5F0EA;
  --line:#EBE3DA;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,31,46,.05), 0 8px 24px rgba(36,31,46,.06);
  --sh-2:0 14px 40px rgba(36,31,46,.10);
  --focus:0 0 0 4px rgba(232,84,47,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-font-family:var(--font-sans);
  --bs-body-color:var(--ink-2);
  --bs-border-radius:var(--r);
  --bs-primary:var(--brand);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-dark);
}
*,*::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:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;margin:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
button{font-family:inherit;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-s);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,248,244,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(251,248,244,.99);}
.topbar{display:flex;align-items:center;gap:24px;padding:14px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:28px;height:28px;border-radius:9px;background:linear-gradient(150deg,var(--brand),var(--brand-dark));display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;}
.logo-mark svg{width:17px;height:17px;}
.brand b{font-size:17px;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.nav-search{
  flex:1 1 auto;
  max-width:620px;
  min-width:220px;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:var(--focus);}
.nav-search svg{width:18px;height:18px;flex-shrink:0;color:var(--ink-3);}
.nav-search input{
  flex:1 1 auto;border:0;outline:0;background:transparent;
  font-size:15px;color:var(--ink);padding:7px 0;min-width:0;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search button{
  border:0;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  padding:8px 18px;cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--brand-dark);transform:translateY(-1px);}
.topbar-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.link-quiet{font-size:15px;color:var(--ink-2);font-weight:500;white-space:nowrap;}
.link-quiet:hover{color:var(--brand);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;
  padding:11px 24px;border-radius:var(--r-pill);border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--surface);color:var(--ink);font-weight:600;font-size:15px;
  padding:11px 24px;border-radius:var(--r-pill);border:1px solid var(--line);
  cursor:pointer;transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;align-items:center;justify-content:center;cursor:pointer;
}
.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;}

/* ============ 分类 chips ============ */
.nav-chips{border-top:1px solid var(--line);background:rgba(255,255,255,.6);}
.chips-scroll{display:flex;align-items:center;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.chips-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;font-size:14px;font-weight:500;color:var(--ink-2);
  background:var(--surface-2);border:1px solid transparent;
  padding:7px 18px;border-radius:var(--r-pill);white-space:nowrap;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand-ink);}
.chip.active{background:var(--brand);color:#fff;}
.chip.active:hover{background:var(--brand-dark);color:#fff;}

/* ============ 移动端抽屉 ============ */
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:var(--surface);padding:16px 0 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel .nav-search{max-width:none;width:100%;margin-bottom:16px;}
.mobile-links{display:flex;flex-direction:column;}
.mobile-links a{
  font-size:16px;line-height:52px;color:var(--ink);border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
}
.mobile-links a:last-child{border-bottom:0;}
.mobile-links a.active{color:var(--brand);font-weight:600;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:20px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--ink-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.article-head{padding:28px 0 8px;}
.article-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand-ink);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.28;margin:18px 0 16px;letter-spacing:-.01em;
  max-width:22ch;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:14px;color:var(--ink-3);}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.meta-row .badge-cat{
  background:var(--surface-2);color:var(--ink-2);border-radius:var(--r-pill);
  padding:4px 12px;font-size:13px;
}

/* ============ 正文布局 ============ */
.article-wrap{padding:36px 0 80px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;
  justify-content:center;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,800px) 240px;}
}
.card-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:32px clamp(20px,3vw,44px);
}
.post-body{font-size:16px;line-height:1.9;color:var(--ink-2);}
.post-body h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.4;margin:2.1em 0 .8em;
  padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:120px;
}
.post-body h3{font-size:19px;margin:1.7em 0 .6em;scroll-margin-top:120px;}
.post-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--ink);}
.post-body p{margin-bottom:1.15em;}
.post-body ul,.post-body ol{padding-left:1.3em;margin-bottom:1.3em;}
.post-body li{margin-bottom:.5em;}
.post-body strong{color:var(--ink);font-weight:600;}
.post-body a{border-bottom:1px solid rgba(232,84,47,.35);}
.post-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--surface-2);
  border-left:4px solid var(--brand);border-radius:0 var(--r) var(--r) 0;color:var(--ink-2);
}
.post-body blockquote p:last-child{margin-bottom:0;}
.post-body img{border-radius:var(--r);margin:1.4em 0;box-shadow:var(--sh-1);}
.post-body figure{margin:1.6em 0;}
.post-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.post-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;}
.post-body th,.post-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.post-body th{background:var(--surface-2);color:var(--ink);font-weight:600;}
.post-body tbody tr:nth-child(even){background:rgba(245,240,234,.45);}
.post-body code{background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-ink);}
.notice{
  display:flex;gap:12px;align-items:flex-start;
  border-radius:var(--r);padding:16px 18px;margin:1.5em 0;font-size:15px;line-height:1.75;
}
.notice .notice-icon{
  width:22px;height:22px;flex:0 0 22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;
}
.notice.info{background:#EFF7F5;border:1px solid #CFE6E0;}
.notice.info .notice-icon{background:var(--accent-2);}
.notice.warn{background:var(--brand-soft);border:1px solid #F7D3C6;}
.notice.warn .notice-icon{background:var(--brand);}
.notice p:last-child{margin-bottom:0;}

/* ============ 目录 ============ */
.toc{
  position:sticky;top:132px;align-self:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:20px 22px;box-shadow:var(--sh-1);display:none;
}
@media (min-width:1200px){.toc{display:block;}}
.toc h2{font-size:14px;letter-spacing:.08em;color:var(--ink-3);font-weight:600;margin-bottom:12px;}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:toc;}
.toc li{margin-bottom:8px;}
.toc a{
  display:block;font-size:14px;color:var(--ink-2);line-height:1.6;
  padding-left:12px;border-left:2px solid var(--line);
  transition:color .2s ease,border-color .2s ease;
}
.toc a:hover,.toc a.active{color:var(--brand);border-left-color:var(--brand);}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:56px 24px;
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:18px;
  background:var(--brand-soft);display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-3);margin-bottom:22px;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--ink-3);}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;white-space:nowrap;}
.text-link svg{transition:transform .2s ease;}
.text-link:hover svg{transform:translateX(4px);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-soft);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.card-cover img{width:100%;height:100%;object-fit:cover;}
.card-cover .tag{
  position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);
  color:var(--brand-ink);font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.card-body p{font-size:14px;color:var(--ink-3);line-height:1.75;margin-bottom:16px;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.card-foot .read{color:var(--brand);font-weight:600;}

/* ============ 返回操作 ============ */
.back-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:8px;}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--brand);border-radius:var(--r-l);
  padding:clamp(28px,4vw,48px);color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  margin:0 0 72px;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.9);margin:0;font-size:15px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-ink);font-weight:600;font-size:15px;
  padding:12px 26px;border-radius:var(--r-pill);border:1px solid #fff;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-light:hover{color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,0,0,.16);}
.btn-outline-light{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:#fff;font-weight:600;font-size:15px;
  padding:12px 26px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.65);
  transition:background .2s ease,transform .2s ease;
}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand);border-color:var(--brand-soft);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(251,248,244,.82);padding:64px 0 26px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col h5{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(251,248,244,.7);margin-bottom:12px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{color:#fff;font-size:16px;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(251,248,244,.75);}
.footer-links a:hover{color:var(--accent);}
.footer-col + .footer-col{border-left:1px solid rgba(251,248,244,.12);padding-left:32px;}
.footer-search{display:flex;gap:8px;background:rgba(251,248,244,.08);border:1px solid rgba(251,248,244,.16);border-radius:var(--r-pill);padding:5px 5px 5px 14px;}
.footer-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;color:#fff;font-size:14px;outline:0;padding:7px 0;}
.footer-search input::placeholder{color:rgba(251,248,244,.5);}
.footer-search button{border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;font-size:13px;font-weight:600;padding:8px 16px;cursor:pointer;transition:background .2s ease;}
.footer-search button:hover{background:var(--brand-dark);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(251,248,244,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(251,248,244,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .chips-scroll{gap:8px;}
}
@media (max-width:991px){
  .nav-search{display:none;}
  .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar{gap:12px;justify-content:space-between;}
  .topbar-actions .btn-brand{padding:10px 18px;font-size:14px;}
  .nav-chips{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
  .article-head h1{max-width:none;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .card-panel{padding:24px 18px;border-radius:var(--r);}
  .article-wrap{padding:26px 0 60px;}
  .cta-band{border-radius:var(--r);padding:26px 20px;}
  .cta-actions{width:100%;}
  .cta-actions a{flex:1 1 auto;}
  .crumb .current{max-width:100%;white-space:normal;}
}
@media (max-width:575px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .brand b{font-size:15px;}
  .topbar-actions .btn-brand{padding:9px 14px;font-size:13px;}
  .to-top{right:14px;bottom:16px;}
  .section-head{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --brand:#E8542F;
  --brand-dark:#C13F1E;
  --brand-soft:#FDEDE7;
  --brand-ink:#7A2410;
  --ink:#241F2E;
  --ink-2:#4A4358;
  --ink-3:#857D93;
  --accent:#F2B035;
  --accent-2:#16967A;
  --bg:#FBF8F4;
  --surface:#FFFFFF;
  --surface-2:#F5F0EA;
  --line:#EBE3DA;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,31,46,.05), 0 8px 24px rgba(36,31,46,.06);
  --sh-2:0 14px 40px rgba(36,31,46,.10);
  --focus:0 0 0 4px rgba(232,84,47,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-body-font-family:var(--font-sans);
  --bs-body-color:var(--ink-2);
  --bs-body-bg:var(--bg);
  --bs-primary:var(--brand);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-dark);
  --bs-border-radius:var(--r);
  --bs-border-color:var(--line);
  --bs-font-sans-serif:var(--font-sans);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-top:118px;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;margin:0 0 14px;letter-spacing:.005em;}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.26;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.32;}
h3{font-size:21px;line-height:1.4;}
h4{font-size:17px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
li{margin-bottom:.45em;}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-s);}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:84px 0;}
.section-alt{background:var(--surface-2);}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--brand-ink);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.section-head p{font-size:16px;color:var(--ink-3);max-width:660px;}
.section-head.center p{margin-left:auto;margin-right:auto;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(251,248,244,.86);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease, background-color .25s ease, border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(251,248,244,.97);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(8px);
}
.header-row{
  display:flex;align-items:center;gap:20px;
  padding-top:16px;padding-bottom:14px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700;font-size:17px;line-height:1.2;}
.brand:hover{color:var(--ink);}
.brand-text{white-space:nowrap;}
.logo-mark{
  width:28px;height:28px;flex:0 0 28px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(232,84,47,.28);
}
.logo-mark svg{width:18px;height:18px;}
.nav-search{
  position:relative;flex:1 1 auto;max-width:620px;min-width:0;
  display:flex;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 4px 4px 16px;transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:var(--focus);}
.nav-search .search-icon{width:18px;height:18px;flex:0 0 18px;color:var(--ink-3);}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:15px;color:var(--ink);padding:9px 12px;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  border-radius:var(--r-pill);padding:9px 20px;
  transition:background-color .2s ease, transform .2s ease;
}
.nav-search button:hover{background:var(--brand-dark);}
.nav-search button:active{transform:translateY(1px);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-primary,
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;
  padding:11px 24px;cursor:pointer;border:1px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(232,84,47,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);background:var(--surface);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;
  color:var(--brand);border-bottom:1px solid rgba(232,84,47,.35);
  padding-bottom:2px;transition:gap .2s ease, color .2s ease;
}
.btn-link-arrow:hover{gap:11px;color:var(--brand-dark);}
.nav-toggle{
  display:none;flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;}

.nav-chips{border-top:1px solid var(--line);background:rgba(255,255,255,.5);}
.chips-scroll{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;padding:12px 0;scrollbar-width:none;
}
.chips-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  font-size:14px;font-weight:600;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:8px 18px;
  transition:all .2s ease;white-space:nowrap;
}
.chip:hover{color:var(--brand-ink);background:var(--brand-soft);border-color:var(--brand-soft);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(232,84,47,.22);}
.chip.active:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}

.mobile-search{padding:0 0 14px;}
.mobile-search form{
  display:flex;align-items:center;gap:8px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);padding:5px 5px 5px 16px;
}
.mobile-search input{flex:1 1 auto;border:0;background:transparent;outline:none;font-size:15px;padding:8px 4px;color:var(--ink);}
.mobile-search button{border:0;background:var(--brand);color:#fff;border-radius:var(--r-pill);padding:9px 18px;font-weight:600;font-size:14px;}
.mobile-menu{padding-bottom:18px;}
.mobile-menu ul{list-style:none;padding:0;margin:0;}
.mobile-menu li{border-bottom:1px solid var(--line);}
.mobile-menu a{display:block;font-size:16px;line-height:52px;color:var(--ink);font-weight:600;}
.mobile-menu a.active{color:var(--brand);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(105deg, rgba(36,31,46,.92) 0%, rgba(36,31,46,.78) 52%, rgba(122,36,16,.72) 100%),
             url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  color:#fff;padding:60px 0 68px;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;
  border-radius:50%;border:1px solid rgba(255,255,255,.16);
}
.page-hero h1,.page-hero h2{color:#fff;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.page-hero-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:48px;align-items:end;position:relative;z-index:1;}
.page-hero .eyebrow{background:rgba(255,255,255,.14);color:#FFD9CB;}
.page-hero .eyebrow::before{background:var(--accent);}
.page-h1{margin-bottom:18px;font-size:clamp(30px,4vw,46px);}
.page-h1 em{
  display:block;font-style:normal;font-size:15px;font-weight:600;letter-spacing:.16em;
  color:var(--accent);margin-top:14px;
}
.page-hero p.lead{color:rgba(255,255,255,.84);font-size:16.5px;max-width:640px;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-on-dark{background:#fff;color:var(--brand-ink);border-color:#fff;}
.btn-on-dark:hover{background:#fff;color:var(--brand-dark);border-color:#fff;}
.btn-outline-light-c{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);
}
.btn-outline-light-c:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.hero-facts{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-l);padding:22px 22px 8px;
  backdrop-filter:blur(6px);
}
.hero-facts h4{color:#fff;font-size:15px;letter-spacing:.08em;margin-bottom:14px;color:rgba(255,255,255,.7);font-weight:600;}
.fact-item{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 0;border-top:1px solid rgba(255,255,255,.14);}
.fact-item:first-of-type{border-top:0;}
.fact-item b{color:#fff;font-size:20px;font-weight:700;}
.fact-item span{font-size:14px;color:rgba(255,255,255,.75);}

/* ---------- split rows ---------- */
.split-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:64px;}
.split-row:last-child{margin-bottom:0;}
.split-row.reverse .split-media{order:2;}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-l);box-shadow:var(--sh-1);}
.split-body .step-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand-ink);background:var(--brand-soft);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:14px;
}
.split-body h3{font-size:23px;margin-bottom:12px;}
.split-body p{color:var(--ink-2);}
.tick-list{list-style:none;padding:0;margin:18px 0 0;}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);margin-bottom:10px;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:12px;border-radius:50%;
  background:var(--brand-soft);border:2px solid var(--brand);
}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:6px;}
.timeline::before{
  content:"";position:absolute;left:21px;top:14px;bottom:34px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(232,84,47,.15));
}
.tl-item{position:relative;padding:0 0 34px 66px;min-height:60px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;box-shadow:var(--sh-1);
}
.tl-item h4{font-size:18px;margin-bottom:8px;}
.tl-item p{font-size:15px;color:var(--ink-2);margin-bottom:8px;}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line);
}
.tag.accent{background:#FFF6E2;color:#8A5B04;border-color:#F6E2B8;}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:34px 34px 20px;box-shadow:var(--sh-1);
}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2);}
.info-card .ic{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.info-card .ic svg{width:20px;height:20px;}
.info-card h4{font-size:17.5px;margin-bottom:10px;}
.info-card p{font-size:14.5px;color:var(--ink-3);line-height:1.8;}

/* ---------- faq ---------- */
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r) !important;
  background:var(--surface);margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:var(--surface);
  padding:18px 22px;line-height:1.55;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:var(--surface-2);color:var(--brand-ink);border-left:3px solid var(--brand);}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;filter:grayscale(1);opacity:.5;
}
.accordion-button:not(.collapsed)::after{filter:none;opacity:.9;}
.accordion-body{padding:6px 22px 22px;font-size:15px;color:var(--ink-2);background:var(--surface-2);}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(100deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;border-radius:var(--r-l);padding:52px 48px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  border-radius:50%;border:1px solid rgba(255,255,255,.22);
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,34px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.88);max-width:600px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:66px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.footer-col h5{color:#fff;font-size:15px;letter-spacing:.06em;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:16.5px;line-height:1.35;}
.footer-col p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.8;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px;}
.footer-links a:hover{color:var(--accent);}
.footer-search{display:flex;gap:8px;margin-top:14px;}
.footer-search input{
  flex:1 1 auto;min-width:0;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-s);color:#fff;padding:10px 12px;font-size:14px;outline:none;
}
.footer-search input::placeholder{color:rgba(255,255,255,.45);}
.footer-search input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,176,53,.18);}
.footer-search button{
  border:0;background:var(--brand);color:#fff;border-radius:var(--r-s);
  padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .2s ease;
}
.footer-search button:hover{background:var(--brand-dark);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

.to-top{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--ink);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .25s ease;z-index:1020;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand);border-color:var(--brand);}
.to-top svg{width:18px;height:18px;}

@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  body{padding-top:104px;}
  .nav-search,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .header-row{padding-top:12px;padding-bottom:12px;}
  .page-hero-grid{grid-template-columns:1fr;gap:32px;align-items:start;}
  .split-row{grid-template-columns:1fr;gap:26px;margin-bottom:48px;}
  .split-row.reverse .split-media{order:0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .section{padding:60px 0;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767px){
  body{padding-top:100px;}
  .card-grid{grid-template-columns:1fr;}
  .brand-text{font-size:15.5px;}
  .section{padding:48px 0;}
  .panel{padding:24px 20px 14px;}
  .timeline{padding-left:0;}
  .timeline::before{left:19px;}
  .tl-item{padding-left:56px;}
  .tl-dot{width:40px;height:40px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
  .hero-facts{padding:18px 18px 6px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .page-h1{font-size:27px;}
  .btn-primary,.btn-ghost{padding:10px 18px;font-size:14.5px;}
  .cta-band{padding:32px 20px;}
}

/* roulang page: category2 */
:root{
  --brand:#E8542F;
  --brand-dark:#C13F1E;
  --brand-soft:#FDEDE7;
  --brand-ink:#7A2410;
  --ink:#241F2E;
  --ink-2:#4A4358;
  --ink-3:#857D93;
  --accent:#F2B035;
  --accent-2:#16967A;
  --bg:#FBF8F4;
  --surface:#FFFFFF;
  --surface-2:#F5F0EA;
  --line:#EBE3DA;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,31,46,.05),0 8px 24px rgba(36,31,46,.06);
  --sh-2:0 14px 40px rgba(36,31,46,.10);
  --focus:0 0 0 4px rgba(232,84,47,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-body-font-family:var(--font-sans);
  --bs-body-color:var(--ink-2);
  --bs-body-bg:var(--bg);
  --bs-primary:var(--brand);
  --bs-border-radius:var(--r);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-dark);
  --bs-font-sans-serif:var(--font-sans);
}

*,*::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:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:var(--focus);}
button{font-family:inherit;}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;margin:0;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}

.section{padding:84px 0;}
.section-tint{background:var(--surface-2);}
.section-plain{background:var(--bg);}
@media(max-width:991px){.section{padding:64px 0;}}
@media(max-width:575px){.section{padding:48px 0;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,248,244,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.header-main{
  display:flex;align-items:center;gap:24px;
  padding:14px 0;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  flex:0 0 auto;white-space:nowrap;
}
.logo-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  display:grid;place-items:center;flex:0 0 auto;
}
.logo-mark svg{width:18px;height:18px;}
.logo b{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;}

.nav-search{
  flex:1 1 auto;
  max-width:620px;
  width:clamp(280px,42vw,620px);
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:6px 6px 6px 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:var(--focus);}
.search-ico{display:flex;color:var(--ink-3);flex:0 0 auto;}
.search-ico svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.7;fill:none;}
.nav-search input{
  flex:1 1 auto;min-width:0;
  border:0;background:transparent;
  font-size:15px;color:var(--ink);
  padding:8px 0;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search input:focus{box-shadow:none;}
.nav-search button{
  flex:0 0 auto;
  border:0;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;
  padding:9px 20px;cursor:pointer;
  transition:background-color .2s ease;
}
.nav-search button:hover{background:var(--brand-dark);}

.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  border-radius:var(--r-pill);padding:13px 28px;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink);
  border-radius:var(--r-pill);padding:12px 24px;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;
}
.btn-text:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.btn-text i{transition:transform .2s ease;}
.btn-text:hover i{transform:translateX(3px);}

.header-mobile-actions{display:none;align-items:center;gap:8px;margin-left:auto;}
.icon-btn{
  width:42px;height:42px;border-radius:var(--r-s);
  border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;color:var(--ink);cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.8;fill:none;stroke-linecap:round;}

.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.open{display:block;}
.mobile-search form{display:flex;align-items:center;gap:8px;}
.mobile-search input{
  flex:1 1 auto;min-width:0;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface);padding:11px 18px;font-size:15px;color:var(--ink);
}
.mobile-search input:focus{border-color:var(--brand);}
.mobile-search button[type=submit]{
  border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;
  padding:11px 20px;font-size:14px;font-weight:600;cursor:pointer;
}
.mobile-search .cancel{
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  border-radius:var(--r-pill);padding:11px 16px;font-size:14px;cursor:pointer;
}

.nav-chips{border-top:1px solid transparent;}
.chips-scroll{
  display:flex;gap:10px;
  overflow-x:auto;padding:6px 0 14px;
  scrollbar-width:none;
}
.chips-scroll::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  color:var(--ink-2);font-size:15px;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-ink);}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

#mobileMenu{border-top:1px solid var(--line);background:var(--surface);}
.mobile-nav{padding:8px 0 16px;}
.mobile-nav a{
  display:block;padding:0 4px;line-height:52px;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-nav li:last-child a{border-bottom:0;}
.mobile-nav a.active{color:var(--brand);font-weight:600;}

@media(max-width:991px){
  .nav-search,.header-actions{display:none;}
  .header-mobile-actions{display:flex;}
  .header-main{gap:12px;padding:12px 0;}
  .logo b{font-size:15px;}
}

/* ---------- page hero ---------- */
.page-hero{
  background:var(--brand-soft);
  padding:52px 0 60px;
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;
  width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(232,84,47,.14),transparent 68%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;
  gap:48px;align-items:center;
}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:18px;
}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line span.sep{color:var(--line);}
.page-hero h1{
  font-size:clamp(30px,3.8vw,46px);line-height:1.26;
  margin-bottom:16px;
}
.hero-lead{
  font-size:17px;line-height:1.8;color:var(--ink-2);
  max-width:56ch;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px;}
.hero-point{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.78);
  border:1px solid rgba(232,84,47,.18);
  border-radius:var(--r-pill);
  padding:7px 16px;font-size:13px;color:var(--brand-ink);
}
.hero-point i{font-size:12px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-l);
  border:6px solid rgba(255,255,255,.9);
  box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;right:18px;bottom:-16px;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#3A2705;
  font-size:13px;font-weight:600;
  border-radius:var(--r-pill);padding:9px 18px;
  box-shadow:var(--sh-1);
}
@media(max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero{padding:40px 0 48px;}
  .hero-figure img{aspect-ratio:16/9;}
}

/* ---------- section head ---------- */
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-ink);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.32;margin-bottom:14px;}
.section-head p{margin:0;color:var(--ink-2);}

/* ---------- matrix ---------- */
.matrix-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:24px;align-items:start;
}
.matrix-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.matrix-card:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2);}
.matrix-icon{
  width:46px;height:46px;border-radius:var(--r-s);
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-bottom:18px;
}
.matrix-icon svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.7;fill:none;stroke-linecap:round;stroke-linejoin:round;}
.matrix-card h3{font-size:19px;line-height:1.45;margin-bottom:10px;}
.matrix-card p{font-size:15px;color:var(--ink-2);}
.matrix-card:nth-child(3){margin-top:8px;}
.matrix-card:nth-child(4){margin-top:36px;}
@media(max-width:991px){
  .matrix-grid{grid-template-columns:1fr;}
  .matrix-card:nth-child(3),.matrix-card:nth-child(4){margin-top:0;}
}

/* ---------- table ---------- */
.table-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  overflow-x:auto;
}
.compare-table{width:100%;min-width:760px;border-collapse:collapse;font-size:15px;}
.compare-table th{
  text-align:left;font-size:14px;font-weight:600;color:var(--ink);
  padding:18px 22px;border-bottom:1px solid var(--line);
  background:var(--surface);white-space:nowrap;
}
.compare-table td{
  padding:16px 22px;border-bottom:1px solid var(--line);
  color:var(--ink-2);vertical-align:top;
}
.compare-table tbody tr:nth-child(even){background:rgba(245,240,234,.42);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table td strong{color:var(--ink);font-weight:600;}
.tag-soft{
  display:inline-block;background:var(--brand-soft);color:var(--brand-ink);
  border-radius:var(--r-pill);padding:3px 12px;font-size:12.5px;font-weight:600;
}

/* ---------- steps ---------- */
.steps-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.steps-aside{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-l);padding:28px 26px;box-shadow:var(--sh-1);
}
.steps-aside img{
  border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;margin-bottom:18px;
}
.steps-aside h3{font-size:18px;margin-bottom:10px;}
.steps-aside p{font-size:14.5px;color:var(--ink-3);}
.step-list{display:grid;gap:6px;}
.step-item{
  display:flex;gap:18px;padding:22px 0;
  border-bottom:1px dashed var(--line);
}
.step-item:last-child{border-bottom:0;padding-bottom:0;}
.step-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-ink);
  display:grid;place-items:center;font-size:14px;font-weight:700;
}
.step-body h3{font-size:17.5px;margin-bottom:8px;}
.step-body p{font-size:15px;margin:0;}
@media(max-width:991px){
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .steps-aside{order:2;}
}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface);margin-bottom:12px;overflow:hidden;
}
.faq-accordion .accordion-button{
  width:100%;background:var(--surface);box-shadow:none!important;
  font-size:17px;font-weight:600;color:var(--ink);
  padding:18px 22px;line-height:1.5;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--brand-ink);
  box-shadow:inset 3px 0 0 var(--brand)!important;
}
.faq-accordion .accordion-button::after{
  content:"";flex:0 0 auto;width:18px;height:18px;margin:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2.5v11M2.5 8h11' stroke='%23E8542F' stroke-width='1.9' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:center;background-size:18px;
  transition:transform .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-accordion .accordion-body{
  padding:4px 22px 22px;font-size:15px;color:var(--ink-2);background:var(--surface-2);
}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand);padding:64px 0;position:relative;overflow:hidden;}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);line-height:1.35;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.86);margin:0;font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-ink);border:1px solid #fff;
  border-radius:var(--r-pill);padding:13px 28px;font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-white:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,0,0,.16);color:var(--brand-dark);}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.65);
  border-radius:var(--r-pill);padding:13px 28px;font-size:15px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.cta-deco{position:absolute;right:-60px;bottom:-90px;width:320px;height:320px;opacity:.22;pointer-events:none;}
.cta-deco svg{width:100%;height:100%;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 28px;font-size:14.5px;}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col+.footer-col{border-left:1px solid rgba(255,255,255,.08);padding-left:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:16px;font-weight:700;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14px;line-height:1.8;}
.site-footer h5{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--accent);}
.footer-search{display:flex;gap:8px;margin-top:12px;}
.footer-search input{
  flex:1 1 auto;min-width:0;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-pill);padding:10px 16px;color:#fff;font-size:14px;
}
.footer-search input::placeholder{color:rgba(255,255,255,.5);}
.footer-search input:focus{border-color:var(--brand);}
.footer-search button{
  border:0;border-radius:var(--r-pill);background:var(--brand);color:#fff;
  padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease;
}
.footer-search button:hover{background:var(--brand-dark);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col+.footer-col{border-left:0;padding-left:0;}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:48px 0 24px;}
}

/* roulang page: category3 */
:root{
  --brand:#E8542F;
  --brand-dark:#C13F1E;
  --brand-soft:#FDEDE7;
  --brand-ink:#7A2410;
  --ink:#241F2E;
  --ink-2:#4A4358;
  --ink-3:#857D93;
  --accent:#F2B035;
  --accent-2:#16967A;
  --bg:#FBF8F4;
  --surface:#FFFFFF;
  --surface-2:#F5F0EA;
  --line:#EBE3DA;
  --r-s:8px;
  --r:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(36,31,46,.05),0 8px 24px rgba(36,31,46,.06);
  --sh-2:0 14px 40px rgba(36,31,46,.10);
  --focus:0 0 0 4px rgba(232,84,47,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-body-font-family:var(--font-sans);
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--ink-2);
  --bs-border-color:var(--line);
  --bs-border-radius:var(--r);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-dark);
  --bs-primary:var(--brand);
  --bs-emphasis-color:var(--ink);
  --bs-heading-color:var(--ink);
}
*,*::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:1.85;
  letter-spacing:.01em;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:700;letter-spacing:.01em;margin:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-dark)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit}
ul{list-style:none;padding:0;margin:0}
.container{max-width:1200px;padding-left:20px;padding-right:20px;width:100%;margin:0 auto}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:2000;
  background:var(--surface);color:var(--ink);padding:12px 20px;border-radius:0 0 var(--r) 0;
  box-shadow:var(--sh-1);font-size:14px;
}
.skip-link:focus{left:0}
:focus-visible{outline:none;box-shadow:var(--focus);border-radius:var(--r-s)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,248,244,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.topbar-inner{
  display:flex;align-items:center;gap:20px;
  padding:14px 0;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);font-weight:700;font-size:16px;line-height:1.2;
  white-space:nowrap;flex:0 0 auto;
}
.brand:hover{color:var(--brand-ink)}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand),var(--brand-dark));
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  box-shadow:0 4px 12px rgba(232,84,47,.28);
}
.logo-mark svg{width:18px;height:18px}
.nav-search{
  flex:1 1 auto;
  max-width:620px;
  display:flex;align-items:center;gap:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;
  height:48px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search:focus-within{border-color:var(--brand);box-shadow:var(--focus)}
.nav-search .search-icon{width:17px;height:17px;flex:0 0 auto;color:var(--ink-3)}
.nav-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:15px;color:var(--ink);height:100%;
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search button{
  flex:0 0 auto;border:0;cursor:pointer;
  background:var(--brand);color:#fff;font-weight:600;font-size:14px;
  padding:10px 20px;border-radius:var(--r-pill);
  transition:background .18s ease,transform .18s ease;
}
.nav-search button:hover{background:var(--brand-dark)}
.nav-search button:active{transform:translateY(1px)}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.link-quiet{
  font-size:14px;color:var(--ink-2);border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-quiet:hover{color:var(--brand);border-bottom-color:var(--brand)}
.btn-primary-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:var(--r-pill);border:1px solid var(--brand);
  cursor:pointer;transition:background .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary-c:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary-c:active{transform:translateY(0);box-shadow:none}
.btn-primary-c.sm{padding:10px 20px;font-size:14px}
.btn-ghost-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--surface);color:var(--ink);font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:var(--r-pill);border:1px solid var(--line);
  cursor:pointer;transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost-c:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-ink);font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:var(--r-pill);border:1px solid #fff;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-white:hover{background:#fff;color:var(--brand-ink);transform:translateY(-1px);box-shadow:0 14px 30px rgba(0,0,0,.18)}
.btn-outline-white{
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;color:#fff;font-weight:600;font-size:15px;
  padding:13px 28px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.7);
  transition:background .2s ease,transform .2s ease;
}
.btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.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}

/* chips */
.nav-chips{border-top:1px solid var(--line);background:rgba(255,255,255,.6)}
.chips-scroll{
  display:flex;gap:10px;align-items:center;overflow-x:auto;
  padding:10px 0;scrollbar-width:none;
}
.chips-scroll::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:var(--r-pill);font-size:14.5px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand-ink);border-color:var(--brand-soft)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ============ 页头（深底反白） ============ */
.page-hero{
  position:relative;
  background:
    linear-gradient(115deg,rgba(36,31,46,.94) 0%,rgba(36,31,46,.86) 52%,rgba(122,36,16,.82) 100%),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#fff;
  padding:64px 0 58px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(242,176,53,.22),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:22px;
}
.crumbs a{color:rgba(255,255,255,.78);border-bottom:1px solid transparent}
.crumbs a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.7)}
.crumbs .sep{opacity:.55}
.hero-title{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.26;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.005em;
}
.hero-title .hero-kicker{
  display:block;
  font-size:clamp(15px,1.6vw,19px);
  font-weight:600;
  color:var(--accent);
  letter-spacing:.06em;
  margin-bottom:14px;
}
.hero-lead{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.85);
  max-width:660px;margin-bottom:28px;
}
.hero-search{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.97);
  border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-pill);
  padding:6px 6px 6px 18px;
  max-width:620px;height:56px;
  box-shadow:0 18px 40px rgba(0,0,0,.24);
}
.hero-search svg{width:18px;height:18px;color:var(--ink-3);flex:0 0 auto}
.hero-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:15.5px;color:var(--ink);height:100%;
}
.hero-search input::placeholder{color:var(--ink-3)}
.hero-search button{
  border:0;cursor:pointer;background:var(--brand);color:#fff;font-weight:600;
  font-size:15px;padding:12px 26px;border-radius:var(--r-pill);
  transition:background .2s ease;
}
.hero-search button:hover{background:var(--brand-dark)}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;
}
.hero-meta .badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.9);
  font-size:13px;padding:7px 15px;border-radius:var(--r-pill);
}
.hero-meta .badge-soft svg{width:14px;height:14px;color:var(--accent)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--surface-2)}
.section.white{background:var(--surface)}
.section-head{max-width:720px;margin-bottom:44px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);background:var(--brand-soft);
  padding:7px 15px;border-radius:var(--r-pill);margin-bottom:18px;
}
.section-title{font-size:clamp(24px,3vw,36px);line-height:1.32;margin-bottom:14px}
.section-desc{font-size:16px;line-height:1.85;color:var(--ink-2);margin:0}
.section.dark .section-title,.section.dark .section-desc{color:#fff}

/* ============ 快速上手（图文） ============ */
.quick-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.quick-figure{position:relative;border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-2);background:var(--surface-2)}
.quick-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.quick-figure .figure-tag{
  position:absolute;left:18px;bottom:18px;
  background:rgba(255,255,255,.95);color:var(--brand-ink);
  font-size:13px;font-weight:600;padding:8px 16px;border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
}
.quick-list{margin-top:26px;display:grid;gap:14px}
.quick-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.quick-item:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2)}
.quick-item .num{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;
}
.quick-item h4{font-size:17px;margin-bottom:4px}
.quick-item p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ============ 分组卡片墙 ============ */
.group-block{margin-bottom:56px}
.group-block:last-child{margin-bottom:0}
.group-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;gap:16px;
  padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:26px;
}
.group-head h3{font-size:22px;line-height:1.4}
.group-head p{font-size:14.5px;color:var(--ink-3);margin:0}
.group-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:700;flex:0 0 auto;
}
.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.help-card{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:22px;box-shadow:var(--sh-1);color:var(--ink-2);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  height:100%;
}
.help-card:hover{transform:translateY(-3px);border-color:var(--brand-soft);box-shadow:var(--sh-2);color:var(--ink-2)}
.help-icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.help-icon svg{width:20px;height:20px}
.help-body{flex:1 1 auto;min-width:0}
.help-card h4{font-size:17px;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.help-card p{font-size:14.5px;color:var(--ink-2);margin:0;line-height:1.75}
.help-arrow{
  flex:0 0 auto;color:var(--ink-3);transition:transform .2s ease,color .2s ease;
  align-self:center;
}
.help-arrow svg{width:16px;height:16px}
.help-card:hover .help-arrow{transform:translateX(4px);color:var(--brand)}

/* ============ 中部大号搜索 ============ */
.search-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-2);
  padding:44px;
  display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center;
}
.search-panel h3{font-size:24px;margin-bottom:12px}
.search-panel p{font-size:15px;color:var(--ink-2);margin-bottom:0}
.big-search{
  display:flex;align-items:center;gap:10px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:7px 7px 7px 20px;height:60px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.big-search:focus-within{border-color:var(--brand);box-shadow:var(--focus);background:#fff}
.big-search svg{width:19px;height:19px;color:var(--ink-3);flex:0 0 auto}
.big-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  font-size:16px;color:var(--ink);height:100%;
}
.big-search input::placeholder{color:var(--ink-3)}
.big-search button{
  border:0;cursor:pointer;background:var(--brand);color:#fff;font-weight:600;font-size:15px;
  padding:13px 30px;border-radius:var(--r-pill);transition:background .2s ease;
}
.big-search button:hover{background:var(--brand-dark)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.tag{
  font-size:13px;color:var(--brand-ink);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--brand);color:#fff}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r)!important;
  margin-bottom:14px;background:var(--surface);overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:var(--surface);
  padding:19px 22px;box-shadow:none!important;line-height:1.55;
  transition:background .22s ease,color .22s ease;
}
.accordion-button:hover{color:var(--brand-ink)}
.accordion-button:not(.collapsed){
  background:var(--surface-2);color:var(--brand-ink);
  box-shadow:inset 3px 0 0 var(--brand)!important;
}
.accordion-button::after{
  content:"";background-image:none;
  width:12px;height:12px;margin-left:auto;flex:0 0 auto;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .22s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.accordion-body{
  padding:18px 22px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);
  background:var(--surface-2);border-top:1px solid var(--line);
}
.accordion-body p{margin-bottom:.8em}

/* ============ 相关入口列表 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-col{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.entry-col h4{font-size:18px;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.entry-col h4 .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);display:inline-block}
.entry-links{display:grid;gap:2px}
.entry-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 4px;font-size:15px;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
  transition:color .18s ease,padding-left .18s ease;
}
.entry-links li:last-child a{border-bottom:0}
.entry-links a:hover{color:var(--brand);padding-left:6px}
.entry-links a svg{width:14px;height:14px;flex:0 0 auto;color:var(--ink-3)}
.entry-links a:hover svg{color:var(--brand)}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;position:relative;overflow:hidden;
  padding:72px 0;border-radius:0;
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:34px;
  position:relative;z-index:1;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.9);font-size:16px;max-width:560px;margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-deco{
  position:absolute;right:-60px;top:-70px;width:320px;height:320px;
  border:2px dashed rgba(255,255,255,.25);border-radius:50%;
}
.cta-deco.two{right:120px;top:90px;width:140px;height:140px;border-style:solid;border-color:rgba(255,255,255,.18)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:rgba(251,248,244,.78);
  padding:64px 0 0;font-size:14.5px;
}
.footer-grid{
  display:grid;grid-template-columns:1.45fr 1fr 1fr 1.25fr;gap:36px;
}
.footer-col h5{
  color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em;font-weight:700;
}
.footer-col p{color:rgba(251,248,244,.66);font-size:14px;line-height:1.85;margin-bottom:14px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{color:#fff;font-size:16px;line-height:1.35}
.footer-links{display:grid;gap:2px}
.footer-links a{
  color:rgba(251,248,244,.72);font-size:14px;padding:7px 0;display:inline-block;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-search{
  display:flex;gap:8px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;height:48px;align-items:center;
}
.footer-search input{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  color:#fff;font-size:14px;height:100%;
}
.footer-search input::placeholder{color:rgba(251,248,244,.5)}
.footer-search button{
  border:0;cursor:pointer;background:var(--brand);color:#fff;font-weight:600;font-size:14px;
  padding:10px 20px;border-radius:var(--r-pill);transition:background .2s ease;
}
.footer-search button:hover{background:var(--brand-dark)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(251,248,244,.55);
}
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);color:var(--ink);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease,transform .22s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-3px);color:var(--brand);border-color:var(--brand-soft)}
.to-top svg{width:18px;height:18px}

/* 移动端抽屉 */
.mobile-drawer{background:var(--bg);width:min(86vw,360px)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.drawer-title{font-weight:700;color:var(--ink);font-size:15px;line-height:1.4}
.mobile-drawer .offcanvas-body{padding:20px}
.drawer-search{
  display:flex;align-items:center;gap:8px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:5px 5px 5px 16px;height:48px;margin-bottom:22px;
}
.drawer-search input{flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;font-size:15px;color:var(--ink)}
.drawer-search button{border:0;background:var(--brand);color:#fff;font-weight:600;font-size:14px;padding:10px 18px;border-radius:var(--r-pill)}
.drawer-nav{display:grid;margin-bottom:24px}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:16px;color:var(--ink-2);padding:14px 2px;border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);font-weight:700}
.drawer-nav a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .quick-grid{gap:34px}
  .search-panel{padding:36px;gap:28px}
}
@media (max-width:991.98px){
  .nav-search{display:none}
  .topbar-actions .link-quiet{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .section.tight{padding:56px 0}
  .quick-grid{grid-template-columns:1fr;gap:28px}
  .help-grid{grid-template-columns:repeat(2,1fr)}
  .search-panel{grid-template-columns:1fr;padding:30px}
  .entry-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .page-hero{padding:46px 0 44px}
  .hero-search{height:52px;padding-left:14px}
  .hero-search button{padding:11px 20px;font-size:14px}
  .hero-lead{font-size:16px}
  .help-grid{grid-template-columns:1fr}
  .brand b{font-size:14.5px}
  .logo-mark{width:26px;height:26px}
  .group-head{gap:12px}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:52px 0}
  .section.tight{padding:48px 0}
  .search-panel{padding:24px 20px;border-radius:var(--r)}
  .big-search{height:54px;padding-left:14px}
  .big-search button{padding:11px 20px;font-size:14px}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:14px;bottom:18px;width:42px;height:42px}
  .cta-band{padding:56px 0}
  .brand b{max-width:150px;white-space:normal;line-height:1.25}
}