/* roulang page: index */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#C95C39;
  --jade:#4E8C86;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E4DED4;
  --line-soft:#EFEAE2;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(15,30,33,.06);
  --sh-2:0 10px 24px rgba(15,30,33,.08);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color var(--t)}
a:hover,a:focus{color:var(--accent)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);line-height:1.35;font-weight:700}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.foundation-clear,a.button,button.button{background-image:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(226,112,74,.24)}
.btn-primary:hover,.btn-primary:focus{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(247,244,239,.55)}
.btn-ghost:hover,.btn-ghost:focus{background:rgba(247,244,239,.14);color:#fff;border-color:rgba(247,244,239,.85)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover,.btn-outline:focus{background:#fff;color:var(--accent);border-color:var(--accent);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.text-link{font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px;transition:color var(--t),border-color var(--t)}
.text-link:hover,.text-link:focus{color:var(--accent);border-color:var(--accent)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:74px;transition:height var(--t)}
.site-header.is-scrolled .nav-wrap{height:62px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:28px;height:28px;flex:0 0 auto;color:var(--ink)}
.logo-mark .cloud-line{stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
.logo-mark .link-accent{stroke:var(--accent);stroke-width:1.8;fill:none;stroke-linecap:round}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--text);border-radius:8px;transition:color var(--t),background-color var(--t)}
.nav-link:hover,.nav-link:focus{color:var(--accent);background:#FBF8F4}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px;background:var(--accent)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:210px;height:42px;padding:0 16px;border-radius:999px;border:1px solid transparent;
  background:#F3F0EA;color:var(--text);font-size:14px;transition:background-color var(--t),border-color var(--t),width var(--t);
}
.nav-search input::placeholder{color:#93A0A1}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--accent);width:236px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.drawer-mask{position:fixed;inset:0;background:rgba(15,30,33,.42);opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:90}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:#fff;z-index:100;padding:22px;transform:translateX(102%);transition:transform 260ms ease-out;overflow-y:auto;box-shadow:-12px 0 32px rgba(15,30,33,.14)}
body.drawer-open .nav-drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--ink)}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{flex:1;height:44px;padding:0 14px;border:1px solid #E2DCD2;border-radius:var(--r-input);background:#FCFAF7}
.drawer-search input:focus{outline:none;border-color:var(--accent);background:#fff}
.drawer-search button{height:44px;padding:0 16px;border:0;border-radius:var(--r-input);background:var(--ink);color:#fff;font-size:14px}
.drawer-links{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-link{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--text)}
.drawer-link:hover,.drawer-link:focus{background:#FBF8F4;color:var(--accent)}
.drawer-link.is-active{background:#FBF8F4;color:var(--ink);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.drawer-cta{width:100%}

/* ---------- hero ---------- */
.hero{position:relative;min-height:600px;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02)}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,30,33,.15) 0%,rgba(15,30,33,.78) 78%)}
.hero-inner{position:relative;z-index:2;padding-top:120px;padding-bottom:56px;max-width:820px}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--r-badge);font-size:13px;font-weight:600;letter-spacing:0;background:rgba(226,112,74,.16);color:#F4B79F;border:1px solid rgba(226,112,74,.35)}
.badge-jade{background:rgba(78,140,134,.16);color:#8FC4BE;border-color:rgba(78,140,134,.36)}
.hero h1{color:#fff;font-size:42px;line-height:1.28;margin:18px 0 16px;max-width:14em}
.hero-sub{color:#D7DBD9;font-size:17px;max-width:32em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px}
.hero-pills li{padding:8px 14px;border-radius:999px;font-size:13px;color:#E3E7E4;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16)}

/* ---------- sections ---------- */
.section{padding:96px 0;border-top:1px solid var(--line)}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-kicker{font-size:13px;font-weight:600;color:var(--jade);margin:0 0 8px}
.sec-title{font-size:28px}
.sec-desc{color:var(--muted);font-size:15px;margin-top:10px;max-width:46em}

/* ---------- rail ---------- */
.rail-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}
.rail-outer{position:relative}
.rail-outer::before,.rail-outer::after{content:"";position:absolute;top:0;bottom:0;width:52px;pointer-events:none;z-index:3}
.rail-outer::before{left:-1px;background:linear-gradient(90deg,var(--bg),rgba(247,244,239,0))}
.rail-outer::after{right:-1px;background:linear-gradient(270deg,var(--bg),rgba(247,244,239,0))}
.rail-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 2px 18px;scrollbar-width:thin}
.rail-track::-webkit-scrollbar{height:6px}
.rail-track::-webkit-scrollbar-thumb{background:#D9D2C6;border-radius:99px}
.rail-card{flex:0 0 calc((100% - 5 * 20px) / 4.5);scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.rail-card:hover,.rail-card:focus-within{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD4C6}
.rail-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E7E1D6}
.rail-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.rail-card:hover .rail-media img{transform:scale(1.04)}
.rail-flag{position:absolute;top:10px;left:10px;padding:4px 9px;border-radius:var(--r-badge);font-size:12px;font-weight:600;background:rgba(15,30,33,.78);color:#fff}
.rail-flag.alt{background:var(--accent);color:#fff}
.rail-body{padding:16px 16px 18px}
.rail-title{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em;transition:color var(--t)}
.rail-card:hover .rail-title{color:var(--accent)}
.rail-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--muted)}
.tag{display:inline-block;padding:3px 9px;border-radius:var(--r-badge);font-size:12px;font-weight:600;background:rgba(78,140,134,.12);color:#3D6F6A;border:1px solid rgba(78,140,134,.22)}
.tag-warm{background:rgba(226,112,74,.12);color:#B4522F;border-color:rgba(226,112,74,.24)}
.date{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.rail-nav{display:flex;gap:8px}
.rail-btn{width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;line-height:1;transition:border-color var(--t),color var(--t),background-color var(--t)}
.rail-btn:hover,.rail-btn:focus{border-color:var(--accent);color:var(--accent)}

/* ---------- focus block ---------- */
.focus-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:32px;align-items:start}
.focus-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform var(--t),box-shadow var(--t)}
.focus-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.focus-thumb{aspect-ratio:16/9;overflow:hidden}
.focus-thumb img{width:100%;height:100%;object-fit:cover}
.focus-body{padding:24px}
.focus-body h3{font-size:22px;margin:12px 0 10px}
.focus-body p{color:var(--muted);font-size:15px}
.rank-list{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:8px 22px}
.rank-item{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.rank-item:last-child{border-bottom:0}
.rank-num{flex:0 0 30px;font-size:18px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.5}
.rank-num.calm{color:var(--jade)}
.rank-item h3{font-size:16px;line-height:1.5}
.rank-item p{font-size:13px;color:var(--muted);margin:6px 0 0}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.steps::before{content:"";position:absolute;top:52px;left:8%;right:8%;border-top:2px dashed #DED7CA;z-index:0}
.step-card{position:relative;z-index:1;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t)}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:#FBF1EC;color:var(--accent);font-size:18px;font-weight:700;margin-bottom:18px;font-variant-numeric:tabular-nums}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:14.5px;color:var(--muted)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2)}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.split-body h2{margin-bottom:16px}
.split-body p{color:#4A5455}
.spec-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.spec-row{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px}
.spec-row .k{font-size:13px;color:var(--muted)}
.spec-row .v{font-size:20px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;margin-top:4px}
.spec-row .v small{font-size:13px;font-weight:400;color:var(--muted);margin-left:4px}
.status-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-top:18px}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 4px rgba(78,140,134,.16)}

/* ---------- category cards ---------- */
.cat-grid{margin-left:-12px;margin-right:-12px}
.cat-grid > .cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.cat-card{display:block;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.cat-card:hover,.cat-card:focus{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD4C6}
.cat-card:hover h3{color:var(--accent)}
.cat-card .cat-media{aspect-ratio:16/9;overflow:hidden}
.cat-card .cat-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.cat-card:hover .cat-media img{transform:scale(1.04)}
.cat-card .cat-body{padding:20px 22px 24px}
.cat-card h3{font-size:19px;margin-bottom:8px;transition:color var(--t)}
.cat-card p{font-size:14.5px;color:var(--muted)}
.cat-card.wide .cat-media{aspect-ratio:21/9}
.cat-card.wide .cat-body{padding:24px 26px 28px}
.cat-card.wide h3{font-size:22px}
.cat-more{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--accent)}

/* ---------- stats ---------- */
.stats-band{background:var(--ink-2);color:#E9EDEA;border-radius:20px;padding:48px 40px}
.stats-band h2{color:#fff;font-size:24px;margin-bottom:12px}
.stats-band p{color:#B7C1BF;font-size:15px;max-width:52em}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:34px}
.stat-item{border-left:2px solid rgba(226,112,74,.7);padding-left:16px}
.stat-num{font-size:30px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{font-size:13.5px;color:#9FADAB;margin-top:6px}

/* ---------- news ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{padding:7px 15px;border-radius:999px;font-size:13.5px;color:#5A6667;background:#fff;border:1px solid var(--line)}
.chip.is-on{background:var(--ink);color:#fff;border-color:var(--ink)}
.news-grid{display:grid;gap:20px}
.news-feature{display:grid;grid-template-columns:1.05fr 1fr;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform var(--t),box-shadow var(--t)}
.news-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-feature-media{overflow:hidden;min-height:260px}
.news-feature-media img{width:100%;height:100%;object-fit:cover}
.news-feature-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.news-feature-body h3{font-size:24px;line-height:1.4;margin:14px 0 12px}
.news-feature-body h3 a:hover,.news-feature-body h3 a:focus{color:var(--accent)}
.news-feature-body p{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-feature-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}
.news-row{display:flex;gap:18px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:16px 20px;transition:transform var(--t),box-shadow var(--t)}
.news-row:hover,.news-row:focus-within{transform:translateY(-3px);box-shadow:var(--sh-2)}
.news-row-thumb{flex:0 0 120px;height:68px;border-radius:var(--r-img);overflow:hidden;background:#E7E1D6}
.news-row-thumb img{width:100%;height:100%;object-fit:cover}
.news-row-body{flex:1;min-width:0}
.news-row-body h3{font-size:16.5px;line-height:1.45;margin-bottom:6px}
.news-row-body h3 a:hover,.news-row-body h3 a:focus{color:var(--accent)}
.news-row-body p{font-size:13.5px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row-side{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.empty-state{background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center}
.empty-state svg{width:44px;height:44px;color:#C9C1B3;margin:0 auto 16px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-intro h2{margin-bottom:14px}
.faq-intro p{color:var(--muted);font-size:15px}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line-soft);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent);transform:scaleY(0);transition:transform var(--t);transform-origin:top}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-title{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--ink);text-decoration:none}
.faq-title:hover,.faq-title:focus{color:var(--accent);background:#FDFBF8}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;transition:transform var(--t),background-color var(--t),color var(--t),border-color var(--t)}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:var(--accent);border-color:var(--accent);color:#fff}
.faq-content{display:none;padding:0 24px 22px 24px;font-size:15px;color:#4A5455;line-height:1.85}
.faq-item.is-open .faq-content{display:block}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink);border-radius:20px;padding:56px 48px;color:#E9EDEA}
.cta-band-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.35}
.cta-band-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:12px}
.cta-band p{color:#B7C1BF;font-size:15px;margin:0}
.sub-form{display:flex;flex-direction:column;gap:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:24px}
.sub-form label{font-size:13.5px;color:#C8D1CF}
.sub-form-row{display:flex;gap:10px;flex-wrap:wrap}
.sub-form input{flex:1;min-width:180px;height:48px;padding:0 16px;border-radius:var(--r-input);border:1px solid #3A4A4C;background:rgba(255,255,255,.96);color:var(--ink);font-size:15px}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,112,74,.22)}
.sub-form .btn{height:48px}
.form-note{font-size:13px;color:#9FADAB;min-height:20px}
.form-note.is-ok{color:#8FC4BE}
.form-note.is-err{color:#F0A88C}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C8D1CF;margin-top:96px;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-text{color:#fff}
.foot-brand .logo-mark{color:#fff}
.foot-desc{font-size:14px;color:#9FADAB;max-width:28em}
.foot-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:14px;color:#B7C1BF;transition:color var(--t)}
.foot-links a:hover,.foot-links a:focus{color:var(--accent)}
.foot-contact{font-size:14px;color:#B7C1BF;line-height:2}
.foot-contact a{color:#B7C1BF}
.foot-contact a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8A9897}
.foot-bottom a{color:#8A9897}
.foot-bottom a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media screen and (max-width:1024px){
  .nav-links{display:none}
  .nav-search input{width:170px}
  .nav-search input:focus{width:190px}
  .hero h1{font-size:34px}
  .focus-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .news-feature{grid-template-columns:1fr}
  .news-feature-media{min-height:220px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .rail-card{flex:0 0 calc((100% - 3.2 * 20px) / 3.2)}
  .cta-band-inner{grid-template-columns:1fr;gap:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cat-grid > .cell{margin-bottom:20px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:64px;gap:12px}
  .site-header.is-scrolled .nav-wrap{height:58px}
  .logo-text{font-size:16.5px}
  .hero{min-height:420px}
  .hero-inner{padding-top:88px;padding-bottom:36px}
  .hero h1{font-size:27px;margin:14px 0 12px}
  .hero-sub{font-size:15px}
  .hero-pills li{font-size:12px;padding:6px 11px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .sec-title{font-size:22px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .rail-card{flex:0 0 calc((100% - 1.15 * 20px) / 1.15)}
  .steps{grid-template-columns:1fr;gap:18px}
  .steps::before{display:none}
  .spec-list{grid-template-columns:1fr}
  .stats-band{padding:32px 24px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:20px}
  .stat-num{font-size:24px}
  .news-feature-body{padding:22px}
  .news-feature-body h3{font-size:20px}
  .news-row{flex-direction:column;align-items:flex-start}
  .news-row-thumb{flex:0 0 auto;width:100%;height:auto;aspect-ratio:16/9}
  .news-row-side{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
  .cta-band{padding:34px 22px}
  .cta-band h2{font-size:21px}
  .sub-form{padding:18px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:60px;padding-top:48px}
  .faq-title{font-size:15.5px;padding:18px}
  .faq-content{padding:0 18px 20px}
}
@media screen and (max-width:520px){
  .hero h1{font-size:24px}
  .btn{padding:12px 20px;font-size:14.5px}
  .stats-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#CE5F3B;
  --jade:#4E8C86;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E4DED4;
  --line-soft:#EFEAE1;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(15,30,33,.06);
  --sh-2:0 10px 24px rgba(15,30,33,.08);
  --s-8:8px; --s-12:12px; --s-16:16px; --s-24:24px; --s-32:32px;
  --s-48:48px; --s-72:72px; --s-96:96px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink);font-weight:700;line-height:1.35;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;border-top:1px solid var(--line);}
.section:first-of-type{border-top:0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:28px;}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:6px;}
.sec-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--jade);
  border:1px solid rgba(78,140,134,.35);border-radius:var(--r-badge);
  padding:2px 10px;margin-bottom:12px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
  transition:padding .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  min-height:72px;padding-top:14px;padding-bottom:14px;
  transition:min-height .2s ease-out,padding .2s ease-out;
}
.site-header.is-scrolled .nav-wrap{min-height:60px;padding-top:8px;padding-bottom:8px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:26px;height:26px;flex-shrink:0;}
.logo-mark .cloud-line{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round;}
.logo-mark .link-accent{fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--accent);background:rgba(226,112,74,.06);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F3F1EC;border:1px solid transparent;border-radius:999px;
  padding:8px 14px;transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,112,74,.14);}
.nav-search svg{width:16px;height:16px;flex-shrink:0;stroke:var(--muted);fill:none;stroke-width:1.6;}
.nav-search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--text);width:132px;
}
.nav-search input::placeholder{color:#9AA6A6;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;border-radius:999px;
  transition:transform .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-line{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-line:hover{color:var(--accent);border-color:var(--accent);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.nav-cta{padding:11px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  align-items:center;justify-content:center;background:#fff;
}
.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;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;background:#fff;z-index:120;
  transform:translateX(100%);transition:transform .28s ease-out;
  box-shadow:-12px 0 32px rgba(15,30,33,.14);padding:24px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,33,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease-out,visibility .28s ease-out;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px;}
.drawer-nav a{padding:12px 10px;font-size:15px;font-weight:500;border-radius:10px;color:var(--ink-2);}
.drawer-nav a:hover,.drawer-nav a.is-active{background:#F6F3EE;color:var(--accent);}
.drawer-form{display:flex;flex-direction:column;gap:10px;}
.drawer-form input{
  border:1px solid #E2DCD2;border-radius:var(--r-input);padding:12px 14px;font-size:15px;
  background:#FBF9F6;outline:none;transition:border-color .2s ease-out,background .2s ease-out;
}
.drawer-form input:focus{border-color:var(--accent);background:#fff;}

/* ---------- 内页窄幅头图 ---------- */
.page-hero{
  position:relative;height:268px;display:flex;align-items:flex-end;
  background-image:linear-gradient(180deg,rgba(15,30,33,.15) 0%,rgba(15,30,33,.78) 78%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 32%;
}
.page-hero .container{padding-bottom:30px;}
.page-hero h2{color:#fff;font-size:26px;margin-bottom:8px;}
.page-hero p{color:rgba(255,255,255,.82);font-size:14px;margin:0;max-width:620px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:12px;}
.crumb a{color:rgba(255,255,255,.78);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{opacity:.6;}
.crumb .now{color:#fff;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:56px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.article-main{min-width:0;}
.article-head{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:36px;}
.badge{
  display:inline-block;font-size:13px;font-weight:600;color:var(--jade);
  border:1px solid rgba(78,140,134,.35);border-radius:var(--r-badge);
  padding:3px 10px;margin-bottom:16px;background:rgba(78,140,134,.07);
}
.article-head h1{font-size:40px;line-height:1.32;margin-bottom:16px;}
.article-lead{font-size:17px;color:var(--muted);line-height:1.85;margin-bottom:20px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.tag-chip{
  display:inline-block;font-size:13px;color:var(--ink-2);background:#F3F1EC;
  border-radius:var(--r-badge);padding:3px 10px;
}

/* ---------- 正文排版 ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text);}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  font-size:26px;margin:48px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:20px;margin:32px 0 12px;}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body p{margin:0 0 1.1em;}
.article-body a{color:var(--accent);border-bottom:1px solid rgba(226,112,74,.35);}
.article-body a:hover{border-bottom-color:var(--accent);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:2px;}
.article-body li{position:relative;padding-left:20px;margin-bottom:8px;}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:50%;
  background:var(--jade);
}
.article-body ol{counter-reset:olc;}
.article-body ol>li{counter-increment:olc;}
.article-body ol>li::before{
  content:counter(olc);position:absolute;left:0;top:.2em;
  font-size:13px;font-weight:700;color:var(--accent);
}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:#fff;border-left:3px solid var(--accent);
  border-radius:0 var(--r-card) var(--r-card) 0;box-shadow:var(--sh-1);color:var(--ink-2);
}
.article-body img{border-radius:var(--r-img);margin:24px 0;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body code{
  background:#F3F1EC;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--ink-2);
}
.article-body pre{
  background:var(--ink);color:#EDE9E1;border-radius:var(--r-card);padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.table-scroll{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;}
.article-body table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px;}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line-soft);text-align:left;}
.article-body th{background:#F7F4EF;font-weight:600;color:var(--ink-2);}
.article-body tr:last-child td{border-bottom:0;}
.empty-state{
  text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:64px 24px;box-shadow:var(--sh-1);
}
.empty-state svg{width:52px;height:52px;margin:0 auto 16px;stroke:var(--jade);fill:none;stroke-width:1.6;}
.empty-state p{color:var(--muted);margin-bottom:20px;}

/* ---------- 侧栏 ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:15px;background:var(--accent);border-radius:2px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow-y:auto;}
.toc-list a{
  display:block;font-size:14px;color:var(--muted);padding:7px 10px;
  border-left:2px solid transparent;border-radius:0 6px 6px 0;line-height:1.6;
}
.toc-list a:hover,.toc-list a.is-current{color:var(--accent);background:#FBF7F4;border-left-color:var(--accent);}
.toc-list a.lv3{padding-left:22px;font-size:13px;}
.side-read{display:flex;flex-direction:column;gap:14px;}
.side-read a{display:flex;gap:12px;align-items:flex-start;}
.side-read img{width:76px;height:44px;object-fit:cover;border-radius:8px;flex-shrink:0;}
.side-read .t{font-size:14px;font-weight:600;color:var(--ink-2);line-height:1.5;}
.side-read a:hover .t{color:var(--accent);}
.side-read .d{font-size:12px;color:var(--muted);margin-top:4px;}
.side-cta{background:var(--ink);border-color:var(--ink);color:#fff;}
.side-cta h3{color:#fff;}
.side-cta h3::before{background:var(--accent);}
.side-cta p{color:rgba(255,255,255,.76);font-size:14px;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD5C9;}
.rel-thumb{overflow:hidden;aspect-ratio:16/9;background:#EFEAE1;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .2s ease-out;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rel-body h3{font-size:17px;line-height:1.45;}
.rel-card:hover .rel-body h3{color:var(--accent);}
.rel-body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-more{margin-top:auto;font-size:13px;color:var(--jade);font-weight:600;}

/* ---------- 上下篇 ---------- */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:48px;}
.pager a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.pager a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#DCD5C9;}
.pager .k{font-size:13px;color:var(--muted);margin-bottom:6px;}
.pager .v{font-size:16px;font-weight:600;color:var(--ink-2);}
.pager a:hover .v{color:var(--accent);}

.back-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:40px;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--ink);color:#fff;border-top:0;}
.cta-band .inner{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:40px;align-items:center;padding:64px 0;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.78);margin:0;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(247,244,239,.82);padding:72px 0 28px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .logo-mark .cloud-line{stroke:#F7F4EF;}
.site-footer .logo-text{color:#fff;}
.foot-desc{color:rgba(247,244,239,.66);font-size:14px;line-height:1.8;max-width:320px;margin:0;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a,.foot-contact a{color:rgba(247,244,239,.72);}
.foot-links a:hover,.foot-contact a:hover{color:var(--accent);}
.foot-contact{display:flex;flex-direction:column;gap:10px;color:rgba(247,244,239,.72);}
.foot-bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid rgba(247,244,239,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,244,239,.55);
}

/* ---------- 响应式 ---------- */
@media screen and (min-width:64em){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;}
  .sidebar{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 120px);overflow-y:auto;}
  .sidebar::-webkit-scrollbar{width:6px;}
  .sidebar::-webkit-scrollbar-thumb{background:#DDD6CA;border-radius:3px;}
}
@media screen and (max-width:1023px){
  .nav-search{display:none;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-band .inner{grid-template-columns:1fr;gap:24px;}
  .cta-actions{justify-content:flex-start;}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-wrap{min-height:62px;padding-top:10px;padding-bottom:10px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .section-head h2{font-size:22px;}
  .page-hero{height:216px;background-position:center 24%;}
  .page-hero h2{font-size:22px;}
  .crumb .now{max-width:200px;}
  .article-wrap{padding:36px 0 64px;}
  .article-head h1{font-size:28px;}
  .article-lead{font-size:15px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:22px;margin:36px 0 12px;}
  .article-body h3{font-size:18px;}
  .rel-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .cta-band .inner{padding:52px 0;}
  .cta-band h2{font-size:22px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;gap:6px;}
}
@media screen and (max-width:519px){
  .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-row .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#C85C39;
  --jade:#4E8C86;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E4DED4;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(15,30,33,.06);
  --sh-2:0 10px 24px rgba(15,30,33,.08);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;letter-spacing:-.01em;line-height:1.32;margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
time{font-variant-numeric:tabular-nums;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--t);}
.site-header.is-scrolled .header-inner{height:60px;}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:26px;height:26px;flex:0 0 auto;}
.cloud-line{fill:none;stroke:var(--ink-2);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.link-accent{fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;}
.nav-links{display:flex;align-items:stretch;height:100%;margin-left:8px;}
.nav-link{position:relative;display:flex;align-items:center;padding:0 14px;font-size:15px;color:var(--text);white-space:nowrap;}
.nav-link::before{
  content:"";position:absolute;top:16px;bottom:16px;left:6px;right:6px;
  border-radius:10px;background:transparent;transition:background var(--t);
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::before{background:#FAF7F2;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;
  background:var(--accent);border-radius:3px 3px 0 0;
}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{display:flex;align-items:center;background:#F3EFE8;border:1px solid transparent;border-radius:999px;padding:0 16px;height:40px;transition:background var(--t),border-color var(--t);}
.search-box:focus-within{background:#fff;border-color:var(--accent);}
.search-box input{width:170px;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:#96A2A0;}
.menu-toggle{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--ink);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink);}
.menu-toggle span::before{top:-5px;}
.menu-toggle span::after{top:5px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border:1px solid transparent;
  transition:background var(--t),color var(--t),transform var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(226,112,74,.24);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:#CFC7BA;}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);}
.btn-ghost-light{background:transparent;color:#F2EFE8;border-color:rgba(242,239,232,.42);}
.btn-ghost-light:hover{border-color:#F2EFE8;color:#fff;transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:14px;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,30,33,.44);opacity:0;visibility:hidden;transition:opacity var(--t);z-index:200;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;z-index:210;height:100%;width:84%;max-width:340px;
  background:#fff;box-shadow:-8px 0 28px rgba(15,30,33,.14);
  transform:translateX(102%);transition:transform var(--t);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:17px;font-weight:700;color:var(--ink);}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);font-size:20px;line-height:1;color:var(--muted);}
.drawer-search{display:flex;align-items:center;background:#F3EFE8;border-radius:var(--r-input);padding:0 14px;height:44px;}
.drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:15px;}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--text);}
.drawer-nav a.is-active{color:var(--accent);font-weight:600;}

/* ---------- 窄幅 Hero ---------- */
.cat-hero{position:relative;min-height:280px;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink);}
.cat-hero-media{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 38%;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,30,33,.32) 0%,rgba(15,30,33,.80) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:34px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(242,239,232,.76);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(242,239,232,.86);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .current{color:#fff;}
.hero-title{color:#fff;font-size:38px;line-height:1.28;margin-bottom:14px;max-width:22em;}
.hero-sub{color:rgba(242,239,232,.86);font-size:16px;margin:0 0 20px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-chips li{
  font-size:13px;color:#F2EFE8;border:1px solid rgba(242,239,232,.34);
  border-radius:999px;padding:6px 14px;background:rgba(15,30,33,.28);
  font-variant-numeric:tabular-nums;
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.section-head h2{font-size:28px;margin-bottom:10px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;}
.text-link{color:var(--accent);font-size:15px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;transition:border-color var(--t),color var(--t);}
.text-link:hover{color:var(--accent-dark);border-color:var(--accent-dark);}
.badge{
  display:inline-block;font-size:12.5px;padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(78,140,134,.12);color:var(--jade);font-weight:600;white-space:nowrap;
}
.badge-accent{background:rgba(226,112,74,.12);color:var(--accent-dark);}

/* ---------- 排行列表 ---------- */
.rank-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:6px 18px;}
.rank-row{
  display:grid;grid-template-columns:56px 96px minmax(0,1fr) auto;
  gap:20px;align-items:center;padding:18px 8px;border-bottom:1px solid var(--line);
  transition:background var(--t),transform var(--t);
}
.rank-row:last-child{border-bottom:0;}
.rank-row:hover{background:#FAF7F2;transform:translateX(2px);}
.rank-no{font-size:20px;font-weight:700;color:var(--jade);text-align:center;font-variant-numeric:tabular-nums;}
.rank-row:nth-child(-n+3) .rank-no{color:var(--accent);}
.rank-thumb{width:96px;height:54px;object-fit:cover;border-radius:8px;background:#EFEAE2;}
.rank-title{font-size:17px;line-height:1.45;margin:0 0 6px;}
.rank-row:hover .rank-title{color:var(--accent);}
.rank-desc{margin:0;font-size:14px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rank-meta{display:flex;align-items:center;gap:14px;justify-content:flex-end;}
.rank-time{font-size:13px;color:var(--muted);}

/* ---------- 数据带 ---------- */
.stat-band{background:var(--ink);padding:52px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(233,228,219,.16);border-radius:var(--r-card);overflow:hidden;}
.stat-card{background:var(--ink);padding:26px 24px;}
.stat-num{display:block;font-size:34px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--accent);}
.stat-label{display:block;margin-top:8px;font-size:14px;color:#9FB0AE;}

/* ---------- 特征对照 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:28px 26px;border-top-width:3px;}
.compare-col.is-ok{border-top-color:var(--jade);}
.compare-col.is-warn{border-top-color:var(--accent);}
.compare-head{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.compare-list li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15.5px;color:var(--text);}
.compare-list li:last-child{margin-bottom:0;}
.compare-list li::before{
  content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:50%;
}
.is-ok .compare-list li::before{background:var(--jade);}
.is-warn .compare-list li::before{background:var(--accent);}

/* ---------- 记录表 ---------- */
.table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.ledger{border-collapse:collapse;width:100%;min-width:660px;}
.ledger th{
  text-align:left;font-size:13.5px;font-weight:600;color:var(--muted);
  background:#FAF7F2;padding:16px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.ledger td{padding:18px 22px;border-bottom:1px solid var(--line);font-size:15px;font-variant-numeric:tabular-nums;}
.ledger tr:last-child td{border-bottom:0;}
.ledger tbody tr{transition:background var(--t);}
.ledger tbody tr:hover{background:#FAF7F2;}
.tag{display:inline-block;font-size:13px;padding:3px 10px;border-radius:var(--r-badge);font-weight:600;}
.tag-ok{background:rgba(78,140,134,.12);color:var(--jade);}
.tag-warn{background:rgba(226,112,74,.12);color:var(--accent-dark);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item[open]{border-left:3px solid var(--accent);box-shadow:var(--sh-2);}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 24px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"";flex:0 0 auto;width:9px;height:9px;margin-right:4px;
  border-right:2px solid var(--jade);border-bottom:2px solid var(--jade);
  transform:rotate(45deg);transition:transform var(--t);
}
.faq-item[open] .faq-q::after{transform:rotate(-135deg);border-color:var(--accent);}
.faq-a{padding:0 24px 22px;color:var(--muted);font-size:16px;}

/* ---------- 相关分类 ---------- */
.related-chips{display:flex;flex-wrap:wrap;gap:12px;}
.chip-link{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:12px 22px;font-size:15px;font-weight:600;color:var(--ink);
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),color var(--t),border-color var(--t);
}
.chip-link::after{content:"→";font-size:14px;color:var(--jade);}
.chip-link:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--accent);border-color:rgba(226,112,74,.4);}
.chip-link:hover::after{color:var(--accent);}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--ink-2);padding:72px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-title{color:#fff;font-size:26px;margin-bottom:12px;}
.cta-desc{color:#A9B8B6;font-size:16px;margin:0;max-width:46em;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#E9E4DB;padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .cloud-line{stroke:#E9E4DB;}
.site-footer .link-accent{stroke:var(--accent);}
.site-footer .logo-text{color:#fff;font-size:17px;}
.foot-desc{color:#9FB0AE;font-size:15px;line-height:1.85;margin:0;max-width:32em;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-links li{margin-bottom:11px;}
.foot-links a{color:#BCC9C7;font-size:15px;}
.foot-links a:hover{color:var(--accent);}
.foot-contact{color:#BCC9C7;font-size:15px;line-height:2.05;}
.foot-contact a{color:#E9E4DB;border-bottom:1px solid rgba(233,228,219,.32);}
.foot-contact a:hover{color:var(--accent);border-color:var(--accent);}
.foot-bottom{
  margin-top:56px;border-top:1px solid rgba(233,228,219,.16);padding:22px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8C9C9A;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .menu-toggle{display:inline-flex;}
  .hero-title{font-size:32px;}
  .section{padding:72px 0;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .compare-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .cat-hero{min-height:240px;}
  .cat-hero-inner{padding-top:48px;padding-bottom:26px;}
  .hero-title{font-size:28px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .section-head h2{font-size:22px;}
  .rank-panel{padding:4px 12px;}
  .rank-row{grid-template-columns:34px 72px minmax(0,1fr);gap:14px;padding:16px 4px;align-items:start;}
  .rank-thumb{width:72px;height:41px;}
  .rank-no{font-size:17px;padding-top:6px;}
  .rank-desc{white-space:normal;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-height:1.6;}
  .rank-meta{grid-column:2 / -1;justify-content:flex-start;gap:12px;margin-top:2px;}
  .stat-band{padding:40px 0;}
  .stat-num{font-size:28px;}
  .cta-band{padding:56px 0;}
  .cta-title{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .foot-bottom{margin-top:40px;flex-direction:column;gap:8px;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a{padding:0 18px 18px;font-size:15px;}
}
@media (max-width:520px){
  .logo-text{font-size:16px;}
  .hero-chips li{font-size:12.5px;padding:5px 12px;}
  .compare-col{padding:22px 18px;}
  .rank-panel{padding:4px 8px;}
  .ledger th,.ledger td{padding:14px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#cf5f3b;
  --jade:#4E8C86;
  --bg:#F7F4EF;
  --white:#FFFFFF;
  --line:#E4DED4;
  --line-soft:#EFE9E0;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(15,30,33,.06);
  --sh-2:0 10px 24px rgba(15,30,33,.08);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px;
  --sp-5:32px; --sp-6:48px; --sp-7:72px; --sp-8:96px;
}

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

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.88;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:0;background:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
table{border-collapse:collapse;width:100%}

a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:4px;
}

/* Foundation 覆盖 */
body,button,input{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--text)}
a:hover{color:var(--accent)}
.button,.button.primary,.button.secondary{
  background:var(--accent);
  color:#fff;
  border-radius:999px;
  box-shadow:none;
  font-weight:600;
}
.grid-x{margin-left:0;margin-right:0}
.grid-margin-x{margin-left:0;margin-right:0}
.accordion{border:0;background:none}

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

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--white);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-4);
  height:76px;
  transition:height .2s ease-out;
}
.site-header.is-scrolled .header-inner{height:64px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:28px;height:28px;flex:0 0 auto}
.logo-mark .cloud-line{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.logo-mark .link-accent{fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.logo-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:var(--sp-4);
  margin-left:var(--sp-5);
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 2px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-21px;
  height:3px;
  background:var(--accent);
  border-radius:2px 2px 0 0;
  opacity:0;
  transform:scaleX(.4);
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.site-header.is-scrolled .nav-link::after{bottom:-17px}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}

.header-tools{display:flex;align-items:center;gap:var(--sp-3);flex:0 0 auto}
.nav-search{
  width:190px;
  height:40px;
  border-radius:999px;
  border:1px solid transparent;
  background:#F1EDE6;
  padding:0 18px;
  font-size:14px;
  color:var(--text);
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search::placeholder{color:#919A9B}
.nav-search:focus{
  background:#fff;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(226,112,74,.14);
  outline:none;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background .2s ease-out,transform .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  padding:13px 24px;
  font-size:15px;
}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;
  color:#fff;
  border:1px solid rgba(255,255,255,.6);
  padding:12px 24px;
  font-size:15px;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px)}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border:1px solid var(--line);
  padding:12px 22px;
  font-size:15px;
}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  align-items:center;
  justify-content:center;
  background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,33,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s ease-out;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;z-index:100;
  transform:translateX(102%);
  transition:transform .24s ease-out;
  padding:22px 22px 32px;
  overflow-y:auto;
  box-shadow:-8px 0 32px rgba(15,30,33,.12);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);font-size:18px;color:var(--muted);line-height:1}
.drawer-search{width:100%;height:42px;border-radius:999px;border:1px solid var(--line);background:#F7F4EF;padding:0 18px;margin-bottom:20px}
.drawer-links a{
  display:block;padding:13px 0;border-bottom:1px solid var(--line-soft);
  font-size:15px;color:var(--text);
}
.drawer-links a.is-active{color:var(--accent);font-weight:600}
.drawer-cta{display:block;text-align:center;margin-top:24px}

/* ============ 窄幅 Hero ============ */
.page-hero{
  position:relative;
  min-height:280px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  background:var(--ink);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 32%;
  transform:scale(1.02);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,30,33,.20) 0%,rgba(15,30,33,.62) 55%,rgba(15,30,33,.86) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 24px 44px;width:100%}

.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(255,255,255,.42)}
.breadcrumb .crumb-current{color:#fff}

.stamp{
  display:inline-block;
  padding:5px 12px;
  border:1px solid rgba(226,112,74,.85);
  border-radius:var(--r-badge);
  color:var(--accent);
  font-size:13px;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.page-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
  color:#fff;
  max-width:18em;
}
.page-hero-sub{
  margin-top:14px;
  font-size:17px;
  color:rgba(255,255,255,.82);
  max-width:36em;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-chips li{
  padding:7px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.9);
  font-size:13px;
  backdrop-filter:blur(2px);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-line{border-top:1px solid var(--line)}
.section-head{margin-bottom:var(--sp-5)}
.section-head h2{
  font-size:28px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:52em}

/* ============ 主体：索引 + 卡片 ============ */
.overview-layout{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:var(--sp-6);
  align-items:start;
}
.side-index{
  position:sticky;
  top:104px;
  border-right:1px solid var(--line);
  padding-right:var(--sp-2);
}
.side-index .index-title{
  font-size:13px;
  color:var(--muted);
  padding:0 14px 12px;
  border-bottom:1px solid var(--line-soft);
  margin-bottom:10px;
}
.side-index a{
  display:block;
  padding:12px 14px;
  border-left:3px solid transparent;
  font-size:15px;
  color:var(--muted);
  border-radius:0 10px 10px 0;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,padding .2s ease-out;
}
.side-index a:hover{background:#fff;color:var(--ink)}
.side-index a.is-current{
  border-left-color:var(--accent);
  background:#fff;
  color:var(--ink);
  font-weight:600;
  box-shadow:var(--sh-1);
}

.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--sp-4);
}
.entry-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.entry-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
  border-color:#DCD4C7;
}
.entry-card:hover .entry-title{color:var(--accent)}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}

.entry-card.is-wide{grid-column:span 2;flex-direction:row}
.entry-card.is-wide .entry-thumb{flex:0 0 54%;}
.entry-card.is-wide .entry-thumb img{height:100%;min-height:270px}

.entry-thumb{
  position:relative;
  overflow:hidden;
  background:var(--ink);
}
.entry-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .2s ease-out;
}
.entry-card.is-wide .entry-thumb img{aspect-ratio:auto}

.entry-flag{
  position:absolute;top:12px;left:12px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  background:var(--accent);
  color:#fff;
  font-size:12px;
  line-height:1.6;
}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto}
.entry-badge{
  display:inline-block;
  align-self:flex-start;
  padding:3px 10px;
  border-radius:var(--r-badge);
  background:rgba(78,140,134,.12);
  color:var(--jade);
  font-size:12px;
  margin-bottom:12px;
}
.entry-title{
  font-size:19px;
  line-height:1.45;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease-out;
}
.entry-card.is-wide .entry-title{font-size:22px}
.entry-desc{
  margin-top:12px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-foot{
  margin-top:auto;
  padding-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--muted);
}
.entry-foot .entry-time{font-variant-numeric:tabular-nums}
.entry-link{color:var(--accent);font-weight:600;font-size:14px}
.entry-link:hover{text-decoration:underline}

/* ============ 卖点：左标题右列表 ============ */
.adv-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:var(--sp-6);align-items:start}
.adv-left h2{
  font-size:28px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.4;
}
.adv-left p{margin-top:16px;color:var(--muted);font-size:16px}
.adv-left .adv-note{
  margin-top:28px;padding:18px 20px;border-radius:var(--r-card);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  font-size:14px;color:var(--muted);line-height:1.8;
}
.adv-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-4)}
.adv-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.adv-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.adv-num{
  font-size:26px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.adv-item h3{margin-top:10px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5}
.adv-item p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ 对照表 ============ */
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
}
table.compare{min-width:760px}
table.compare th,table.compare td{
  padding:16px 20px;
  text-align:left;
  font-size:14.5px;
  border-bottom:1px solid var(--line-soft);
  white-space:nowrap;
}
table.compare th{
  background:#F3EFE8;
  color:var(--ink);
  font-weight:600;
  font-size:14px;
}
table.compare td{color:var(--muted)}
table.compare td:first-child{color:var(--ink);font-weight:600}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare tbody tr:hover td{background:#FAF8F4}
.tag{
  display:inline-block;padding:2px 9px;border-radius:var(--r-badge);
  font-size:12.5px;background:rgba(78,140,134,.12);color:var(--jade);
}
.tag-amber{background:rgba(226,112,74,.12);color:var(--accent)}

/* ============ 场景行列表 ============ */
.scene-list{border-top:1px solid var(--line)}
.scene-row{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:var(--sp-4);
  padding:26px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
  transition:padding-left .2s ease-out;
}
.scene-row:hover{padding-left:6px}
.scene-row .scene-key{
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.scene-row .scene-key span{
  display:block;font-size:13px;font-weight:400;color:var(--jade);margin-bottom:6px;
}
.scene-row p{font-size:15px;color:var(--muted);line-height:1.85;max-width:62em}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item.is-open{border-color:#DCD4C7;box-shadow:var(--sh-2)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-3);
  padding:20px 22px;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
  border-left:3px solid transparent;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.faq-item.is-open .faq-q{border-left-color:var(--accent)}
.faq-q:hover{color:var(--accent)}
.faq-icon{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-icon::before{top:10px;left:2px;width:18px;height:2px}
.faq-icon::after{left:10px;top:2px;width:2px;height:18px;transition:opacity .2s ease-out}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .26s ease-out;
}
.faq-a-inner{
  padding:0 22px 22px 25px;
  font-size:15px;
  color:var(--muted);
  line-height:1.9;
}

/* ============ 相关分类 chips ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:var(--sp-4)}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  font-size:14.5px;
  color:var(--ink);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.chip:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent)}
.chip.is-current{background:var(--ink);border-color:var(--ink);color:#fff}
.chip.is-current:hover{color:#fff}

/* ============ CTA 带 ============ */
.cta-band{background:var(--ink);color:#fff;padding:72px 0}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--sp-6);align-items:center}
.cta-band h2{font-size:28px;font-weight:700;color:#fff;letter-spacing:-.01em}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.72);font-size:16px;max-width:42em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-band .btn-outline{color:#fff;border-color:rgba(255,255,255,.4)}
.cta-band .btn-outline:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.1)}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#EFE9E0;padding:72px 0 28px;margin-top:0}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:var(--sp-6);
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-mark .cloud-line{stroke:#EFE9E0}
.foot-brand .logo-text{color:#fff;font-size:18px}
.foot-desc{font-size:14px;line-height:1.9;color:rgba(239,233,224,.66);max-width:30em}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:14px;color:rgba(239,233,224,.7)}
.foot-links a:hover{color:var(--accent)}
.foot-contact{font-size:14px;line-height:2;color:rgba(239,233,224,.7)}
.foot-contact a{color:rgba(239,233,224,.86)}
.foot-contact a:hover{color:var(--accent)}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;
  font-size:13px;
  color:rgba(239,233,224,.5);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-links{margin-left:var(--sp-3);gap:var(--sp-3)}
  .nav-link{font-size:14px}
  .nav-search{width:150px}
  .overview-layout{grid-template-columns:170px minmax(0,1fr);gap:var(--sp-5)}
  .adv-wrap{grid-template-columns:1fr;gap:var(--sp-5)}
  .adv-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--sp-5)}
}

@media screen and (max-width:767px){
  .container{padding:0 20px}
  .header-inner{height:64px}
  .site-header.is-scrolled .header-inner{height:58px}
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:flex}
  .header-tools .btn-primary{display:none}

  .page-hero{min-height:300px}
  .page-hero-inner{padding:40px 20px 32px}
  .page-hero h1{font-size:28px;line-height:1.34}
  .page-hero-sub{font-size:15px}

  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head h2,.adv-left h2,.cta-band h2{font-size:22px}

  .overview-layout{grid-template-columns:1fr;gap:var(--sp-4)}
  .side-index{
    position:static;
    border-right:0;
    border-bottom:1px solid var(--line);
    padding:0 0 8px;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
  }
  .side-index .index-title{width:100%;padding:0 0 8px;border-bottom:0;margin-bottom:4px}
  .side-index a{
    border-left:0;
    border-bottom:3px solid transparent;
    border-radius:8px 8px 0 0;
    padding:9px 12px;
    background:#fff;
    border:1px solid var(--line);
    font-size:14px;
  }
  .side-index a.is-current{border-color:var(--accent);background:rgba(226,112,74,.08);color:var(--accent)}

  .entry-grid{grid-template-columns:1fr}
  .entry-card.is-wide{grid-column:span 1;flex-direction:column}
  .entry-card.is-wide .entry-thumb{flex:0 0 auto}
  .entry-card.is-wide .entry-thumb img{min-height:0;aspect-ratio:16/9}
  .entry-card.is-wide .entry-title{font-size:19px}

  .adv-list{grid-template-columns:1fr}
  .scene-row{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .faq-q{font-size:15.5px;padding:18px}
  .faq-a-inner{padding:0 18px 20px 21px}

  .cta-band{padding:56px 0}
  .cta-actions .btn{width:100%}

  .foot-grid{grid-template-columns:1fr;gap:var(--sp-5)}
  .foot-bottom{flex-direction:column;gap:8px}
}

@media screen and (max-width:519px){
  .page-hero h1{font-size:25px}
  .hero-chips li{font-size:12.5px;padding:6px 12px}
  .entry-body{padding:18px 18px 20px}
  .entry-foot{flex-direction:column;align-items:flex-start;gap:8px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category3 */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#CE5F3B;
  --celadon:#4E8C86;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E4DED4;
  --line-soft:#EFEAE2;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(15,30,33,.06);
  --sh2:0 10px 24px rgba(15,30,33,.08);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px;
  --sp-6:48px; --sp-7:72px; --sp-8:96px;
  --ease:200ms ease-out;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{letter-spacing:-0.01em;line-height:1.35;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.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:60;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,30,33,.05);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(15,30,33,.09);}
.header-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  min-height:72px;
  transition:min-height var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:60px;}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{width:26px;height:26px;flex-shrink:0;}
.logo-mark .cloud-line{
  fill:none;stroke:var(--ink);stroke-width:1.6;
  stroke-linecap:round;stroke-linejoin:round;
}
.logo-mark .link-accent{
  fill:none;stroke:var(--accent);stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;
}
.logo-text{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-0.01em;
  white-space:nowrap;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
  border-radius:8px 8px 0 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:3px;
  border-radius:2px;
  background:transparent;
  transition:background var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{font-weight:600;color:var(--ink);}
.nav-link.is-active::after{background:var(--accent);}

.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  background:#F2F0EA;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  padding:8px 14px;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-box svg{width:15px;height:15px;flex-shrink:0;stroke:var(--muted);fill:none;stroke-width:1.8;}
.search-box input{
  border:0;background:transparent;outline:none;
  width:132px;font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--muted);}
.search-box:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,112,74,.14);}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(226,112,74,.26);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(226,112,74,.32);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.62);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-sm{padding:9px 20px;font-size:14px;}

.burger{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  cursor:pointer;
}
.burger span{
  display:block;width:18px;height:2px;background:var(--ink);
  border-radius:2px;position:relative;
}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  height:100vh;width:300px;max-width:86vw;
  background:#fff;
  border-left:1px solid var(--line);
  box-shadow:-14px 0 32px rgba(15,30,33,.14);
  transform:translateX(102%);
  transition:transform 240ms ease-out;
  z-index:90;
  padding:22px 22px 32px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;border-bottom:1px solid var(--line-soft);
}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);background:#fff;
  border-radius:10px;cursor:pointer;font-size:18px;color:var(--muted);line-height:1;
}
.drawer-links{margin:18px 0 22px;display:flex;flex-direction:column;}
.drawer-links a{
  padding:13px 12px;
  border-bottom:1px solid var(--line-soft);
  font-size:15px;font-weight:500;border-radius:8px;
}
.drawer-links a.is-active{color:var(--accent);font-weight:600;box-shadow:inset 3px 0 0 var(--accent);padding-left:14px;}
.drawer .search-box{width:100%;margin-bottom:16px;}
.drawer .search-box input{width:100%;}
.drawer .btn{width:100%;}
.scrim{
  position:fixed;inset:0;background:rgba(15,30,33,.42);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  z-index:80;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:16px 0 0;}
.crumb{
  font-size:13px;color:var(--muted);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#C3BBAE;}
.crumb .current{color:var(--text);font-weight:500;}

/* ============ 专题 Hero ============ */
.topic-hero{
  position:relative;
  margin-top:20px;
  min-height:480px;
  border-radius:18px;
  overflow:hidden;
  background:#0F1E21;
  display:flex;
  align-items:flex-end;
  box-shadow:var(--sh2);
}
.topic-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 32%;
  transform:scale(1.02);
}
.topic-hero__mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,30,33,.15) 0%,rgba(15,30,33,.62) 52%,rgba(15,30,33,.9) 100%);
}
.topic-hero__inner{
  position:relative;
  padding:48px 44px 42px;
  max-width:780px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:var(--r-badge);
  font-size:13px;font-weight:600;line-height:1.5;
}
.badge-topic{background:rgba(226,112,74,.94);color:#fff;}
.badge-green{background:rgba(78,140,134,.16);color:var(--celadon);}
.badge-line{border:1px solid var(--line);color:var(--muted);background:#fff;}
.topic-hero h1{
  margin:18px 0 14px;
  font-size:40px;
  line-height:1.32;
  font-weight:700;
  color:#fff;
}
.topic-hero__sub{
  font-size:17px;
  color:rgba(247,244,239,.86);
  max-width:600px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:32px;padding-top:22px;
  border-top:1px solid rgba(247,244,239,.22);
}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;
  border-radius:var(--r-pill);
  background:rgba(247,244,239,.13);
  border:1px solid rgba(247,244,239,.2);
  font-size:13px;
  color:#F7F4EF;
  font-variant-numeric:tabular-nums;
}
.hero-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section + .section{border-top:1px solid var(--line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:28px;
  font-weight:700;
  color:var(--ink);
}
.section-head .lead{
  margin-top:10px;
  font-size:15px;
  color:var(--muted);
  max-width:660px;
}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--celadon);
  margin-bottom:10px;
  padding-left:10px;
  border-left:3px solid var(--celadon);
}

/* 左图右文 / 右图左文 交替双列 */
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:44px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line-soft);}
.feature-row.reverse .feature-media{order:2;}
.feature-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  background:#E9E4DA;
  box-shadow:var(--sh1);
}
.feature-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 420ms ease-out;
}
.feature-row:hover .feature-media img{transform:scale(1.04);}
.feature-media .tag-corner{
  position:absolute;top:14px;left:14px;
  background:rgba(15,30,33,.82);
  color:#F7F4EF;
  font-size:12px;
  padding:5px 11px;
  border-radius:var(--r-badge);
  font-variant-numeric:tabular-nums;
}
.feature-body h3{
  font-size:22px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:14px;
}
.feature-body p{color:#3C4749;margin-bottom:14px;}
.feature-points{display:flex;flex-direction:column;gap:12px;margin-top:20px;}
.feature-points li{
  display:flex;gap:12px;
  font-size:15px;
  color:var(--text);
}
.feature-points .mark{
  flex-shrink:0;
  width:22px;height:22px;border-radius:6px;
  background:rgba(78,140,134,.14);
  color:var(--celadon);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
  margin-top:6px;
}
.meta-line{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-top:22px;
  font-size:13px;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.meta-line span{display:inline-flex;align-items:center;gap:6px;}

/* ============ 时间轴 ============ */
.timeline-wrap{position:relative;max-width:820px;margin:0 auto;}
.timeline-wrap::before{
  content:"";
  position:absolute;
  left:9px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,var(--line) 0%,var(--line) 82%,transparent 100%);
}
.timeline-item{
  position:relative;
  padding:0 0 34px 44px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item .node{
  position:absolute;
  left:0;top:7px;
  width:20px;height:20px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--celadon);
  display:flex;align-items:center;justify-content:center;
}
.timeline-item .node::after{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--celadon);
}
.timeline-item.is-current .node{border-color:var(--accent);}
.timeline-item.is-current .node::after{background:var(--accent);}
.timeline-date{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--celadon);
  font-variant-numeric:tabular-nums;
  margin-bottom:8px;
}
.timeline-item.is-current .timeline-date{color:var(--accent);}
.timeline-item h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.timeline-item p{font-size:15px;color:#4B5658;}

/* ============ 对照表卡 ============ */
.stat-band{
  background:var(--ink);
  border-radius:18px;
  padding:44px 40px;
  color:#F7F4EF;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.stat-item{border-left:2px solid rgba(226,112,74,.55);padding-left:18px;}
.stat-item .num{
  font-size:30px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-item .lbl{margin-top:8px;font-size:14px;color:rgba(247,244,239,.72);}

/* ============ 轻量问答 ============ */
.qa-block{max-width:820px;margin:0 auto;}
.qa-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.qa-item:hover{box-shadow:var(--sh1);}
.qa-item summary{
  cursor:pointer;
  list-style:none;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.qa-item summary::-webkit-details-marker{display:none;}
.qa-item summary .arrow{
  flex-shrink:0;
  width:24px;height:24px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--muted);
  transition:transform var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
}
.qa-item[open]{border-color:#E7D6CD;box-shadow:inset 3px 0 0 var(--accent),var(--sh1);}
.qa-item[open] summary .arrow{transform:rotate(90deg);background:var(--accent);border-color:var(--accent);color:#fff;}
.qa-item .qa-body{padding:0 24px 22px;font-size:15px;color:#485356;}

/* ============ 相关分类 chips ============ */
.related{padding:0 0 88px;}
.related-inner{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 32px;
  display:flex;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  justify-content:space-between;
  box-shadow:var(--sh1);
}
.related-inner h2{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
}
.related-inner .hint{font-size:14px;color:var(--muted);margin-top:6px;}
.chip-list{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#FCFAF7;
  font-size:14px;
  font-weight:500;
  color:var(--text);
  transition:border-color var(--ease),color var(--ease),transform var(--ease),background var(--ease);
}
.chip:hover{border-color:var(--accent);color:var(--accent);background:#fff;transform:translateY(-2px);}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--ink);
  color:#F7F4EF;
  border-radius:18px;
  padding:52px 48px;
  display:grid;
  grid-template-columns:1.5fr 1fr;
  gap:40px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;bottom:-70px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(226,112,74,.28),transparent 68%);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(247,244,239,.76);font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#F7F4EF;
  padding:72px 0 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(247,244,239,.16);
}
.foot-brand{
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.foot-brand .logo-mark .cloud-line{stroke:#F7F4EF;}
.foot-brand .logo-text{color:#fff;font-size:18px;}
.foot-desc{font-size:14px;line-height:1.9;color:rgba(247,244,239,.68);max-width:320px;}
.foot-title{
  font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;
}
.foot-links{display:flex;flex-direction:column;gap:11px;}
.foot-links a{font-size:14px;color:rgba(247,244,239,.72);}
.foot-links a:hover{color:var(--accent);}
.foot-contact{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(247,244,239,.72);}
.foot-contact a{color:rgba(247,244,239,.86);}
.foot-contact a:hover{color:var(--accent);}
.foot-bottom{
  padding-top:24px;
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;
  font-size:13px;color:rgba(247,244,239,.55);
  font-variant-numeric:tabular-nums;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .header-inner{gap:20px;}
  .nav-links{display:none;}
  .header-tools .search-box{display:none;}
  .burger{display:inline-flex;}
  .section{padding:72px 0;}
  .topic-hero{min-height:420px;}
  .topic-hero__inner{padding:38px 30px 34px;}
  .topic-hero h1{font-size:32px;}
  .feature-row{gap:36px;}
  .stat-band{grid-template-columns:repeat(2,1fr);padding:36px 30px;}
  .cta-band{grid-template-columns:1fr;padding:42px 34px;}
  .cta-actions{justify-content:flex-start;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related{padding-bottom:72px;}
}

@media screen and (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .topic-hero{min-height:420px;border-radius:14px;margin-top:14px;}
  .topic-hero__inner{padding:30px 22px 28px;}
  .topic-hero h1{font-size:27px;}
  .topic-hero__sub{font-size:15px;}
  .hero-actions{margin-top:22px;gap:10px;}
  .hero-actions .btn{padding:10px 20px;font-size:14px;}
  .hero-chips{margin-top:24px;padding-top:18px;gap:8px;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .feature-row{
    grid-template-columns:1fr;
    gap:22px;
    padding:32px 0;
  }
  .feature-row.reverse .feature-media{order:0;}
  .feature-body h3{font-size:19px;}
  .timeline-item{padding-left:34px;}
  .timeline-item h3{font-size:17px;}
  .stat-band{grid-template-columns:1fr;gap:20px;padding:30px 24px;}
  .stat-item .num{font-size:26px;}
  .qa-item summary{padding:16px 18px;font-size:15px;}
  .qa-item .qa-body{padding:0 18px 18px;}
  .related-inner{padding:24px 22px;gap:18px;}
  .cta-band{padding:34px 24px;border-radius:14px;}
  .cta-band h2{font-size:21px;}
  .cta-actions .btn{width:100%;}
  .site-footer{padding:56px 0 24px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;gap:8px;}
}

@media screen and (max-width:520px){
  .logo-text{font-size:17px;}
  .header-inner{min-height:64px;}
  .topic-hero h1{font-size:24px;}
  .hero-chip{font-size:12px;padding:6px 11px;}
  .meta-line{flex-direction:column;gap:8px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#0F1E21;
  --ink-2:#16333A;
  --accent:#E2704A;
  --accent-dark:#cf6342;
  --celadon:#4E8C86;
  --bg:#F7F4EF;
  --card:#FFFFFF;
  --line:#E4DED4;
  --line-soft:#EDE7DD;
  --text:#2A3436;
  --muted:#6B7A7C;
  --r-card:14px;
  --r-img:12px;
  --r-input:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,30,33,.06);
  --sh-2:0 10px 24px rgba(15,30,33,.08);
  --s-8:8px; --s-12:12px; --s-16:16px; --s-24:24px; --s-32:32px; --s-48:48px; --s-72:72px; --s-96:96px;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.88;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-2);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-0.01em;line-height:1.35;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
strong{font-weight:600;color:var(--ink-2);}

/* Foundation 覆盖 */
.button,.button.primary,.button.secondary{
  background:var(--accent);color:#fff;border-radius:var(--r-pill);border:0;
  font-size:15px;font-weight:600;padding:12px 22px;line-height:1;transition:all .2s ease-out;
}
.button:hover{background:var(--accent-dark);color:#fff;}
input[type="search"],input[type="text"],input[type="email"],textarea,select{
  border-radius:var(--r-input);border:1px solid #E2DCD2;box-shadow:none;
}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(15,30,33,.06);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  display:flex;align-items:center;gap:20px;
  padding-top:14px;padding-bottom:14px;
  transition:padding .2s ease-out;
}
.site-header.is-scrolled .header-inner{padding-top:8px;padding-bottom:8px;}

.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{width:28px;height:28px;flex-shrink:0;}
.logo-mark .cloud-line{fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.logo-mark .link-accent{fill:none;stroke:var(--accent);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-0.01em;white-space:nowrap;}

.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:block;padding:10px 12px;font-size:15px;color:var(--text);
  border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--accent);background:#FBF9F5;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:3px;
  border-radius:var(--r-pill);background:var(--accent);
}

.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:6px;background:#F2EEE7;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:3px 5px 3px 14px;transition:all .2s ease-out;
}
.nav-search:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(226,112,74,.14);}
.nav-search input{
  width:168px;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);padding:8px 0;
}
.nav-search input::placeholder{color:#9AA5A5;}
.nav-search button{
  border:0;background:var(--ink);color:#fff;width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease-out;
}
.nav-search button:hover{background:var(--accent);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 24px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1;
  transition:all .2s ease-out;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-2);}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}

.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

.drawer-mask{
  position:fixed;inset:0;background:rgba(15,30,33,.45);opacity:0;visibility:hidden;
  transition:opacity .2s ease-out,visibility .2s ease-out;z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:95;
  transform:translateX(100%);transition:transform .24s ease-out;
  padding:24px 22px;overflow-y:auto;box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-close{border:0;background:#F2EEE7;width:36px;height:36px;border-radius:10px;font-size:18px;cursor:pointer;color:var(--ink);}
.drawer-search{display:flex;align-items:center;background:#F2EEE7;border-radius:var(--r-pill);padding:3px 5px 3px 14px;margin-bottom:18px;}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;padding:9px 0;font-size:14px;color:var(--text);}
.drawer-search button{border:0;background:var(--ink);color:#fff;width:30px;height:30px;border-radius:50%;cursor:pointer;}
.drawer-nav{display:grid;gap:4px;margin-bottom:22px;}
.drawer-nav a{padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text);border:1px solid transparent;}
.drawer-nav a:hover{background:#FBF9F5;color:var(--accent);}
.drawer-nav a.is-active{background:#FDF1EC;color:var(--accent);border-color:#F6DACE;font-weight:600;}
.drawer-cta{width:100%;}

/* ---------- 面包屑 ---------- */
.crumbs{background:#fff;border-bottom:1px solid var(--line-soft);}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 0;font-size:13px;color:var(--muted);}
.crumbs li{display:flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:#C6CECB;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs .current{color:var(--ink-2);font-weight:600;}

/* ---------- 窄幅 Hero ---------- */
.page-hero{
  position:relative;
  min-height:268px;
  display:flex;align-items:flex-end;
  background:#0F1E21 url('/assets/images/backpic/back-3.webp') center 38%/cover no-repeat;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,30,33,.30) 0%,rgba(15,30,33,.78) 62%,rgba(15,30,33,.90) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:40px;}
.hero-badge{
  display:inline-block;background:rgba(226,112,74,.92);color:#fff;
  font-size:13px;font-weight:600;padding:5px 12px;border-radius:var(--r-badge);
  margin-bottom:16px;
}
.page-hero h1{
  color:#fff;font-size:38px;line-height:1.3;margin-bottom:12px;max-width:820px;
}
.page-hero .hero-sub{color:rgba(247,244,239,.86);font-size:16px;max-width:640px;margin:0 0 22px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;}
.hero-pills span{
  display:inline-block;font-size:13px;color:rgba(247,244,239,.92);
  border:1px solid rgba(247,244,239,.32);border-radius:var(--r-pill);
  padding:5px 14px;backdrop-filter:blur(2px);
}

/* ---------- 指南页两栏 ---------- */
.guide-wrap{padding:64px 0 88px;}
.guide-grid{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start;}

.anchor-nav{position:sticky;top:100px;}
.anchor-title{
  font-size:13px;color:var(--muted);font-weight:600;margin-bottom:12px;padding-left:14px;
}
.anchor-list{display:grid;gap:2px;border-left:1px solid var(--line);}
.anchor-list a{
  display:block;padding:10px 14px;font-size:15px;color:var(--text);
  border-left:3px solid transparent;margin-left:-2px;
  transition:all .2s ease-out;
}
.anchor-list a:hover{color:var(--accent);background:#fff;border-left-color:#F0C4B2;}
.anchor-list a.is-current{color:var(--ink);font-weight:600;border-left-color:var(--accent);background:#fff;}

.guide-main{min-width:0;}
.guide-section{margin-bottom:72px;scroll-margin-top:110px;}
.guide-section:last-child{margin-bottom:0;}
.sec-head{margin-bottom:24px;}
.sec-eyebrow{
  display:inline-block;font-size:12px;color:var(--celadon);font-weight:600;
  border:1px solid #CFE0DD;background:#F0F6F5;border-radius:4px;padding:2px 8px;margin-bottom:10px;
}
.sec-head h2{font-size:27px;margin-bottom:8px;}
.sec-head p{color:var(--muted);font-size:15px;margin:0;}

/* 准备清单 */
.prep-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.prep-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;}
.prep-body{padding:28px 30px;}
.prep-list{display:grid;gap:16px;counter-reset:prep;}
.prep-list li{
  position:relative;padding-left:42px;font-size:15.5px;color:var(--text);
}
.prep-list li::before{
  counter-increment:prep;content:counter(prep,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  width:26px;height:26px;border-radius:8px;background:#F4F0E9;color:var(--celadon);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.prep-visual{
  background:#F4F0E9;display:flex;align-items:center;justify-content:center;padding:20px;
  border-left:1px solid var(--line-soft);
}
.prep-visual img{border-radius:var(--r-img);width:100%;height:100%;max-height:280px;object-fit:cover;}

/* 三步流程卡 */
.step-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);transition:all .2s ease-out;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DFD5C7;}
.step-card:not(:last-child)::after{
  content:"";position:absolute;top:52px;right:-24px;width:24px;
  border-top:2px dashed #D9D0C3;
}
.step-no{
  font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;
  display:inline-block;margin-bottom:14px;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--muted);margin:0;}
.step-tip{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--celadon);
}

/* 提示语对照 */
.msg-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.msg-row{
  display:grid;grid-template-columns:230px minmax(0,1fr);gap:20px;
  padding:18px 24px;border-bottom:1px solid var(--line-soft);transition:all .2s ease-out;
}
.msg-row:last-child{border-bottom:0;}
.msg-row:hover{background:#FBF8F3;}
.msg-key{font-weight:600;color:var(--ink-2);font-size:15.5px;display:flex;align-items:center;gap:10px;}
.msg-key::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0;
}
.msg-val{font-size:15px;color:var(--muted);}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;gap:18px;transition:all .2s ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:#F0F6F5;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.scene-icon svg{width:22px;height:22px;stroke:var(--celadon);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:17px;margin-bottom:8px;}
.scene-card p{font-size:15px;color:var(--muted);margin:0;}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-item:hover{border-color:#DFD5C7;}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--accent);border-color:#F0D4C8;}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  padding:18px 24px;font-size:16.5px;font-weight:600;color:var(--ink-2);line-height:1.6;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex-shrink:0;width:20px;height:20px;margin-top:4px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);border-radius:2px;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;transition:opacity .2s ease-out;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease-out;}
.faq-a-inner{padding:0 24px 22px 24px;font-size:15.5px;color:var(--muted);}
.faq-a-inner p:last-child{margin-bottom:0;}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0F1E21 0%,#16333A 100%);
  border-radius:20px;padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-50px;width:240px;height:240px;
  background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'><path d='M40 130a34 34 0 0 1 4-67 42 42 0 0 1 79 9 30 30 0 0 1-5 58H40z' fill='none' stroke='%23E2704A' stroke-width='1.4' opacity='0.5'/><path d='M120 60a26 26 0 0 1 3-51 32 32 0 0 1 60 7 23 23 0 0 1-4 44h-59z' fill='none' stroke='%234E8C86' stroke-width='1.2' opacity='0.45'/></svg>") no-repeat center/contain;
  opacity:.5;pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{color:#fff;font-size:25px;margin-bottom:10px;}
.cta-text p{color:rgba(247,244,239,.78);font-size:15px;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;}

/* 相关分类 */
.related{padding:56px 0 0;border-top:1px solid var(--line);margin-top:72px;}
.related h2{font-size:20px;margin-bottom:16px;}
.chip-row{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:10px 20px;font-size:15px;color:var(--ink-2);
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:var(--sh-1);}
.chip::after{content:"→";font-size:13px;color:var(--muted);}
.chip:hover::after{color:var(--accent);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F7F4EF;margin-top:88px;padding:64px 0 28px;}
.site-footer a{color:#D8DFDD;}
.site-footer a:hover{color:var(--accent);}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.site-footer .logo-mark .cloud-line{stroke:#F7F4EF;}
.site-footer .logo-mark .link-accent{stroke:var(--accent);}
.foot-brand .logo-text{color:#F7F4EF;font-size:18px;font-weight:700;}
.foot-desc{font-size:14px;color:rgba(247,244,239,.66);line-height:1.8;margin:0;max-width:320px;}
.foot-title{font-size:15px;font-weight:600;color:#F7F4EF;margin-bottom:16px;}
.foot-links{display:grid;gap:10px;font-size:14px;}
.foot-contact{display:grid;gap:10px;font-size:14px;color:rgba(247,244,239,.72);}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(247,244,239,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,239,.6);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .nav-links{display:none;}
  .nav-search{display:none;}
  .menu-toggle{display:flex;}
  .guide-grid{grid-template-columns:1fr;gap:32px;}
  .anchor-nav{position:static;border:1px solid var(--line);border-radius:var(--r-card);background:#fff;padding:18px;}
  .anchor-title{padding-left:0;}
  .anchor-list{border-left:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;}
  .anchor-list a{border-left:0;border-bottom:2px solid transparent;border-radius:8px;padding:8px 10px;font-size:14px;}
  .anchor-list a:hover{border-left-color:transparent;border-bottom-color:#F0C4B2;}
  .anchor-list a.is-current{border-left-color:transparent;border-bottom-color:var(--accent);background:#FDF6F2;}
  .prep-grid{grid-template-columns:1fr;}
  .prep-visual{border-left:0;border-top:1px solid var(--line-soft);}
  .prep-visual img{max-height:220px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media screen and (max-width:768px){
  .container{padding:0 20px;}
  .page-hero{min-height:240px;}
  .page-hero h1{font-size:28px;}
  .page-hero .hero-sub{font-size:15px;}
  .sec-head h2{font-size:22px;}
  .step-cards{grid-template-columns:1fr;}
  .step-card:not(:last-child)::after{
    top:auto;right:auto;left:34px;bottom:-24px;width:0;height:24px;
    border-top:0;border-left:2px dashed #D9D0C3;
  }
  .msg-row{grid-template-columns:1fr;gap:6px;padding:16px 20px;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 26px;border-radius:16px;}
  .cta-text h2{font-size:21px;}
  .faq-q{font-size:16px;padding:16px 20px;}
  .faq-a-inner{padding:0 20px 20px 20px;}
  .anchor-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guide-wrap{padding:44px 0 64px;}
  .guide-section{margin-bottom:56px;}
}

@media screen and (max-width:520px){
  .page-hero h1{font-size:26px;}
  .brand .logo-text{font-size:16px;}
  .hero-pills span{font-size:12px;padding:4px 11px;}
  .foot-grid{grid-template-columns:1fr;}
  .prep-body{padding:22px 20px;}
  .footer{padding-top:48px;}
  .anchor-list{grid-template-columns:1fr;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}