/* roulang page: index */
:root{
  --c-primary:#E0522D;
  --c-primary-deep:#B93C1E;
  --c-secondary:#6B2B57;
  --c-secondary-deep:#3A1730;
  --c-accent:#FFC24B;
  --c-bg:#FBF7F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4EDE6;
  --c-ink:#241A22;
  --c-ink-2:#6A5C66;
  --c-ink-3:#9A8D95;
  --c-line:#EADFD6;
  --c-dark-text:#FFF6EF;
  --c-success:#2F7D5C;
  --c-warn:#C4321C;
  --c-tip:#B9791C;
  --sh-1:0 1px 2px rgba(36,26,34,.06),0 8px 20px -12px rgba(36,26,34,.16);
  --sh-2:0 2px 4px rgba(36,26,34,.07),0 18px 36px -18px rgba(36,26,34,.22);
  --r-card:16px;
  --r-lg:24px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --w-container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-alt{background:var(--c-surface-2)}
.section-white{background:var(--c-surface)}
.section-line{border-top:1px solid var(--c-line)}
.section-dark{background:var(--c-secondary);color:var(--c-dark-text)}
.section-dark .sec-title{color:#fff}
.section-dark .sec-desc{color:rgba(255,246,239,.78)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:var(--c-primary);font-weight:600;margin-bottom:10px}
.sec-kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--c-primary)}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.sec-desc{margin-top:10px;max-width:62ch;color:var(--c-ink-2);font-size:15px}
.sec-more{color:var(--c-primary);font-weight:600;font-size:14px;border-bottom:2px solid transparent;transition:border-color .18s ease,color .18s ease}
.sec-more:hover{border-color:var(--c-primary);color:var(--c-primary-deep)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--c-primary);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2;font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.brand-text small{font-weight:400;font-size:11px;color:var(--c-ink-3);letter-spacing:.02em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .18s ease}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-cta{flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-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(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-backdrop{position:fixed;inset:0;background:rgba(36,26,34,.42);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:70}
.drawer-backdrop.show{opacity:1;pointer-events:auto}
.nav-drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--c-surface);z-index:80;transform:translateX(104%);transition:transform .28s ease;padding:22px 22px 32px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:16px;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:8px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface-2);font-size:18px;line-height:1}
.nav-drawer a{display:flex;align-items:center;height:48px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.nav-drawer a.active{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:22px;justify-content:center;border-bottom:0!important;color:#fff!important}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(224,82,45,.9)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:0 14px 26px -14px rgba(185,60,30,.9)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(224,82,45,.08)}
.btn-light{background:#fff;color:var(--c-secondary-deep)}
.btn-light:hover{background:var(--c-accent);color:var(--c-secondary-deep)}
.btn-ghost{color:var(--c-primary);font-weight:600;border-bottom:1.5px solid rgba(224,82,45,.5);padding:0 0 2px;height:auto;border-radius:0}
.btn-ghost:hover{border-color:var(--c-primary)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--c-bg);padding:72px 0 64px}
.hero::before{content:"";position:absolute;top:-120px;right:-80px;width:560px;height:560px;background:var(--c-secondary);border-radius:0 0 0 180px;opacity:.96;z-index:0}
.hero::after{content:"";position:absolute;left:-140px;bottom:-160px;width:360px;height:360px;border-radius:50%;background:rgba(255,194,75,.22);z-index:0}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:55% 1fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);color:var(--c-secondary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;box-shadow:var(--sh-1)}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--c-primary);display:block}
.hero h1{margin-top:18px;font-size:clamp(28px,4.2vw,46px);font-weight:700;line-height:1.22;letter-spacing:-.02em;max-width:20ch}
.hero h1 em{font-style:normal;color:var(--c-primary);background:linear-gradient(transparent 62%,rgba(255,194,75,.55) 0);padding:0 2px}
.hero-sub{margin-top:18px;font-size:16px;color:var(--c-ink-2);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{display:flex;gap:34px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line);flex-wrap:wrap}
.trust-item strong{display:block;font-size:22px;font-weight:700;letter-spacing:-.01em;color:var(--c-ink)}
.trust-item span{font-size:12px;color:var(--c-ink-3);letter-spacing:.02em}
.hero-media{position:relative}
.hero-frame{position:relative;aspect-ratio:16/11;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface-2);border:6px solid #fff}
.hero-frame img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;left:-26px;bottom:-24px;background:#fff;border-radius:var(--r-card);box-shadow:var(--sh-2);padding:14px 18px;display:flex;align-items:center;gap:12px;border:1px solid var(--c-line)}
.hero-float b{font-size:15px;display:block;line-height:1.3}
.hero-float small{font-size:12px;color:var(--c-ink-3)}
.hero-float .dot{width:34px;height:34px;border-radius:12px;background:rgba(224,82,45,.12);display:grid;place-items:center;color:var(--c-primary);font-weight:700;font-size:14px}

/* chips */
.chip-section{padding:34px 0;background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.chip-row{display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}
.chip{flex:none;display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);font-size:14px;font-weight:500;color:var(--c-ink-2);transition:all .18s ease;white-space:nowrap}
.chip span{width:6px;height:6px;border-radius:50%;background:var(--c-primary);opacity:.7}
.chip:hover{background:#fff;border-color:rgba(224,82,45,.5);color:var(--c-primary);box-shadow:var(--sh-1);transform:translateY(-2px)}

/* grids & cards */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(224,82,45,.3)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.thumb{position:relative;aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .thumb img{transform:scale(1.04)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-cat{background:var(--c-secondary);color:#fff}
.badge-quota{background:var(--c-accent);color:#5A3D06}
.badge-soft{background:var(--c-surface-2);color:var(--c-ink-2);border:1px solid var(--c-line);font-weight:500}
.thumb .badge{position:absolute;left:12px;top:12px;box-shadow:0 6px 14px -8px rgba(36,26,34,.6)}
.card h3{font-size:18px;font-weight:600;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);font-size:12px;color:var(--c-ink-2);letter-spacing:.02em}
.card-link{font-size:13px;font-weight:600;color:var(--c-primary);margin-top:4px}

/* mini features */
.mini-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;transition:transform .2s ease,box-shadow .2s ease}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.mini-ico{width:40px;height:40px;border-radius:12px;background:rgba(107,43,87,.1);color:var(--c-secondary);display:grid;place-items:center;font-weight:700;font-size:14px}
.mini-card h3{font-size:17px;font-weight:600}
.mini-card p{font-size:14px;color:var(--c-ink-2)}
.mini-card a{font-size:13px;font-weight:600;color:var(--c-primary);margin-top:2px}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split-media{aspect-ratio:4/3;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);background:var(--c-surface-2)}
.split-media img{width:100%;height:100%;object-fit:cover}
.feature-list{display:flex;flex-direction:column;gap:20px;margin-top:26px}
.feature-item{display:flex;gap:16px}
.feature-num{width:34px;height:34px;flex:none;border-radius:10px;background:var(--c-secondary);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}
.feature-item h4{font-size:16px;font-weight:600;margin-bottom:4px}
.feature-item p{font-size:14px;color:var(--c-ink-2)}

/* compare */
.compare-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.compare-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:640px}
table.compare th,table.compare td{padding:16px 20px;text-align:left;font-size:14px;border-bottom:1px solid var(--c-line)}
table.compare thead th{background:var(--c-surface-2);font-weight:700;font-size:14px;color:var(--c-ink)}
table.compare thead th:first-child{color:var(--c-ink-2);font-weight:600}
table.compare tbody tr:hover{background:rgba(244,237,230,.55)}
table.compare td:first-child{color:var(--c-ink-2);font-weight:500}
table.compare td strong{color:var(--c-primary);font-weight:700}
.check{color:var(--c-success);font-weight:700}
.dash{color:var(--c-ink-3)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{width:40px;height:40px;border-radius:50%;background:rgba(224,82,45,.12);color:var(--c-primary);display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:14px}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--c-ink-2)}

/* timeline steps */
.tl-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative}
.tl-step{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1)}
.tl-step .bar{height:4px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));margin-bottom:18px}
.tl-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tl-step p{font-size:14px;color:var(--c-ink-2)}

/* scene cards */
.scene-card{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--c-line);background:var(--c-surface);transition:transform .2s ease,box-shadow .2s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-card .thumb{aspect-ratio:4/3}
.scene-card .scene-body{padding:18px 20px 22px}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scene-card p{font-size:13.5px;color:var(--c-ink-2)}

/* news list */
.news-card .card-body{padding:18px 20px 20px}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--c-ink-3);margin-top:auto;padding-top:8px}
.news-meta time{color:var(--c-ink-3)}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface);color:var(--c-ink-2);text-align:center;padding:32px}
.empty-state .ico{width:56px;height:56px;border-radius:50%;background:var(--c-surface-2);display:grid;place-items:center;color:var(--c-primary);font-size:20px;font-weight:700}
.empty-state a{color:var(--c-primary);font-weight:600;font-size:14px}

/* quotes */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.quote-card{background:rgba(255,246,239,.08);border:1px solid rgba(255,246,239,.18);border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;gap:16px}
.quote-card .mark{font-size:36px;line-height:1;color:var(--c-accent);font-family:Georgia,serif}
.quote-card p{font-size:15px;line-height:1.75;color:rgba(255,246,239,.92)}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:15px;background:var(--c-primary);color:#fff;flex:none}
.avatar.b{background:var(--c-accent);color:#5A3D06}
.avatar.c{background:#2F7D5C;color:#fff}
.quote-foot b{display:block;font-size:14px;color:#fff}
.quote-foot small{font-size:12px;color:rgba(255,246,239,.65)}

/* city cloud */
.city-cloud{display:flex;flex-wrap:wrap;gap:12px}
.city-cloud a{display:inline-flex;align-items:center;height:40px;padding:0 20px;border-radius:999px;background:var(--c-surface);border:1px solid var(--c-line);font-size:14px;color:var(--c-ink-2);box-shadow:var(--sh-1);transition:all .18s ease}
.city-cloud a:hover{color:var(--c-primary);border-color:rgba(224,82,45,.45);transform:translateY(-2px)}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(224,82,45,.4);box-shadow:var(--sh-2)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:none;border:0;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;line-height:1.5}
.faq-q .sign{width:28px;height:28px;flex:none;border-radius:50%;background:rgba(224,82,45,.12);color:var(--c-primary);display:grid;place-items:center;font-size:17px;font-weight:600;transition:background .2s ease,color .2s ease}
.faq-item.open .faq-q .sign{background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease,padding .24s ease;padding:0 22px;color:var(--c-ink-2);font-size:14.5px;line-height:1.78}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 20px}

/* cta band */
.cta-band{position:relative;overflow:hidden;background:var(--c-secondary-deep);color:var(--c-dark-text);padding:56px 0}
.cta-band::before{content:"";position:absolute;right:-90px;top:-60px;width:420px;height:420px;background:linear-gradient(135deg,rgba(224,82,45,.32),rgba(255,194,75,.12));border-radius:0 0 0 240px}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-inner p{margin-top:10px;color:rgba(255,246,239,.76);font-size:15px;max-width:60ch}

/* changelog */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding:0 0 26px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-27px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--c-surface);border:3px solid var(--c-primary)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:4px}
.tl-top time{font-size:13px;color:var(--c-ink-3);letter-spacing:.02em}
.tl-item p{font-size:14.5px;color:var(--c-ink-2)}

/* footer */
.site-footer{background:var(--c-secondary-deep);color:rgba(255,246,239,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,246,239,.55)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,246,239,.68);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col a,.footer-col li{display:block;font-size:13.5px;color:rgba(255,246,239,.68);margin-bottom:10px;transition:color .18s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,246,239,.14);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,246,239,.5)}

/* responsive */
@media (max-width:1199px){
  .container{padding:0 24px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .quote-grid{grid-template-columns:1fr}
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991px){
  .section{padding:56px 0}
  .hero{padding:52px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero::before{width:400px;height:400px;border-radius:0 0 0 140px}
  .hero h1{max-width:26ch}
  .hero-media{order:2}
  .hero-float{left:auto;right:12px;bottom:-18px}
  .split{grid-template-columns:1fr;gap:32px}
  .tl-steps{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .section{padding:40px 0}
  .container{padding:0 18px}
  .grid-3,.grid-4,.grid-2,.steps{grid-template-columns:1fr}
  .btn{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .trust-bar{gap:20px}
  .trust-item{min-width:44%}
  .brand-text{font-size:14px}
  .brand-text small{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .quote-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .hero h1{font-size:26px}
  .trust-item strong{font-size:19px}
  .sec-head{margin-bottom:24px}
  .compare-scroll table.compare{min-width:560px}
}

/* roulang page: article */
:root{
  --c-primary:#E0522D;
  --c-primary-deep:#B93C1E;
  --c-secondary:#6B2B57;
  --c-secondary-deep:#3A1730;
  --c-accent:#FFC24B;
  --c-bg:#FBF7F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4EDE6;
  --c-ink:#241A22;
  --c-ink-2:#6A5C66;
  --c-ink-3:#9A8D95;
  --c-line:#EADFD6;
  --c-dark-text:#FFF6EF;
  --c-success:#2F7D5C;
  --c-warn:#C4321C;
  --c-tip:#B9791C;
  --sh-1:0 1px 2px rgba(36,26,34,.06),0 8px 20px -12px rgba(36,26,34,.16);
  --sh-2:0 2px 4px rgba(36,26,34,.07),0 18px 36px -18px rgba(36,26,34,.22);
  --r-card:16px;
  --r-lg:24px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --w-container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-alt{background:var(--c-surface-2)}
.section-white{background:var(--c-surface)}
.section-line{border-top:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.sec-desc{margin-top:10px;color:var(--c-ink-2);font-size:15px;line-height:1.7;max-width:60ch}
/* header */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--c-primary);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2;font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.brand-text small{font-weight:400;font-size:11px;color:var(--c-ink-3);letter-spacing:.02em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .18s ease}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-cta{flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-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(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-backdrop{position:fixed;inset:0;background:rgba(36,26,34,.42);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:70}
.drawer-backdrop.show{opacity:1;pointer-events:auto}
.nav-drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--c-surface);z-index:80;transform:translateX(104%);transition:transform .28s ease;padding:22px 22px 32px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:16px;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:8px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface-2);font-size:18px;line-height:1}
.nav-drawer a{display:flex;align-items:center;height:48px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.nav-drawer a.active{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:22px;justify-content:center;border-bottom:0!important;color:#fff!important}
/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(224,82,45,.9)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:0 14px 26px -14px rgba(185,60,30,.9)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(224,82,45,.08)}
.btn-light{background:#fff;color:var(--c-secondary-deep)}
.btn-light:hover{background:var(--c-accent);color:var(--c-secondary-deep)}
.btn-ghost{color:var(--c-primary);font-weight:600;border-bottom:1.5px solid rgba(224,82,45,.5);padding:0 0 2px;height:auto;border-radius:0}
.btn-ghost:hover{border-color:var(--c-primary)}
/* badges & tags */
.badge-cat{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-secondary);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-quota{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-accent);color:#5C3A0B;font-size:12px;font-weight:700}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);color:var(--c-ink-2);font-size:12px;letter-spacing:.02em}
/* article page */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:16px 0;font-size:13px;color:var(--c-ink-3)}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-line)}
.crumb .current{color:var(--c-ink-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{background:var(--c-surface);padding:44px 0 0}
.article-head-inner{max-width:860px;margin:0 auto}
.article-head h1{font-size:clamp(26px,3.4vw,40px);line-height:1.26;font-weight:700;letter-spacing:-.02em}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;margin-top:20px;font-size:13px;color:var(--c-ink-3)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.article-meta time{color:var(--c-ink-2)}
.article-cover{max-width:1000px;margin:32px auto 0;border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface-2);box-shadow:var(--sh-1)}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}
.article-wrap{background:var(--c-surface);padding:48px 0 72px}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.78}
.article-body p{margin:0 0 1.2em;color:var(--c-ink)}
.article-body h2{position:relative;font-size:clamp(20px,2.2vw,25px);line-height:1.35;font-weight:700;margin:40px 0 16px;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-primary)}
.article-body h3{font-size:18px;font-weight:600;line-height:1.4;color:var(--c-secondary);margin:28px 0 12px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:4px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:li}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;background:rgba(224,82,45,.12);color:var(--c-primary-deep);font-size:12px;font-weight:700;display:grid;place-items:center}
.article-body blockquote{margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);background:var(--c-surface-2);border-radius:0 12px 12px 0;color:var(--c-ink-2);font-style:normal}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:2px}
.article-body a:hover{color:var(--c-primary-deep)}
.article-body img{border-radius:var(--r-img);margin:24px 0 10px;background:var(--c-surface-2)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:12px;color:var(--c-ink-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0}
.article-body .table-scroll{overflow-x:auto;border:1px solid var(--c-line);border-radius:12px}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.article-body thead th{background:var(--c-surface-2);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(244,237,230,.5)}
.article-body code{background:var(--c-surface-2);border-radius:6px;padding:2px 6px;font-size:14px}
.article-body pre{background:var(--c-secondary-deep);color:var(--c-dark-text);padding:16px 18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.6}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.summary-card{background:var(--c-surface-2);border-left:4px solid var(--c-primary);border-radius:0 var(--r-card) var(--r-card) 0;padding:22px 24px;margin-bottom:28px}
.summary-card h2{font-size:17px;font-weight:700;margin:0 0 12px;padding:0;color:var(--c-secondary-deep)}
.summary-card h2::before{display:none}
.summary-card ol{counter-reset:sm;margin:0}
.summary-card ol li{position:relative;padding-left:26px;margin-bottom:8px;font-size:14.5px;color:var(--c-ink-2);line-height:1.72}
.summary-card ol li::before{content:counter(sm);counter-increment:sm;position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;background:var(--c-primary);color:#fff;font-size:11px;font-weight:700;display:grid;place-items:center}
.summary-card ol li:last-child{margin-bottom:0}
.empty-state{max-width:760px;margin:0 auto;text-align:center;padding:56px 24px;min-height:220px;background:var(--c-surface-2);border-radius:var(--r-lg);border:1px dashed var(--c-line)}
.empty-state .empty-dot{width:56px;height:56px;border-radius:50%;background:#fff;border:1px solid var(--c-line);margin:0 auto 16px;display:grid;place-items:center;color:var(--c-primary);font-size:24px;font-weight:700}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--c-ink-2);font-size:14.5px;margin-bottom:18px}
/* related cards */
.card-grid{display:grid;gap:24px;grid-template-columns:repeat(3,minmax(0,1fr))}
.post-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(224,82,45,.32)}
.post-card .thumb{position:relative;background:var(--c-surface-2)}
.post-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-card .badge-cat{position:absolute;left:12px;top:12px}
.post-card .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:16px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14px;line-height:1.7;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .card-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--c-ink-3);margin-top:auto}
.card-link{display:flex;flex-direction:column;height:100%}
/* prev next */
.pn-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}
.pn-card{display:flex;flex-direction:column;gap:6px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px 22px;box-shadow:var(--sh-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(224,82,45,.32)}
.pn-card .pn-label{font-size:12px;color:var(--c-ink-3);letter-spacing:.04em}
.pn-card .pn-title{font-size:15px;font-weight:600;line-height:1.5}
.pn-card.disabled{background:var(--c-surface-2);color:var(--c-ink-3);box-shadow:none;border-style:dashed;cursor:default}
.pn-card.disabled:hover{transform:none;box-shadow:none;border-color:var(--c-line)}
/* back links */
.back-links{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;margin-top:40px;font-size:15px}
.back-links a{color:var(--c-primary);font-weight:600;border-bottom:1.5px solid rgba(224,82,45,.45);padding-bottom:2px}
.back-links a:hover{border-color:var(--c-primary)}
.back-links .bar{color:var(--c-line)}
/* cta */
.cta-band{position:relative;overflow:hidden;background:var(--c-secondary-deep);color:var(--c-dark-text);border-radius:var(--r-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;background:linear-gradient(135deg,rgba(224,82,45,.28),rgba(255,194,75,.10));clip-path:polygon(0 0,100% 0,100% 100%);opacity:.9}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);line-height:1.35;position:relative;z-index:1}
.cta-band p{margin-top:8px;color:rgba(255,246,239,.78);font-size:14.5px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}
/* footer */
.site-footer{background:var(--c-secondary-deep);color:var(--c-dark-text);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,246,239,.6)}
.footer-brand p{font-size:14px;line-height:1.75;color:rgba(255,246,239,.72);max-width:36ch}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:16px;color:#fff}
.footer-col a{display:block;font-size:14px;color:rgba(255,246,239,.72);padding:6px 0;transition:color .16s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-col ul li{font-size:14px;color:rgba(255,246,239,.72);padding:6px 0;line-height:1.6}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,246,239,.16);font-size:13px;color:rgba(255,246,239,.6)}
@media (max-width:1199.98px){
  .container{padding:0 24px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .section{padding:56px 0}
  .article-head h1{font-size:clamp(24px,4vw,32px)}
}
@media (max-width:767.98px){
  .container{padding:0 18px}
  .section{padding:40px 0}
  .card-grid{grid-template-columns:1fr}
  .pn-grid{grid-template-columns:1fr}
  .article-wrap{padding:32px 0 48px}
  .article-cover{border-radius:var(--r-card)}
  .article-cover img{aspect-ratio:16/9}
  .cta-band{padding:32px 24px;border-radius:var(--r-card)}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn{height:48px}
  .brand-text{font-size:15px;white-space:normal}
  .brand-text small{display:none}
  .article-body h2{margin-top:32px}
}
@media (max-width:480px){
  body{font-size:15px}
  .sec-title{font-size:21px}
  .crumb{padding:12px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --c-primary:#E0522D;
  --c-primary-deep:#B93C1E;
  --c-secondary:#6B2B57;
  --c-secondary-deep:#3A1730;
  --c-accent:#FFC24B;
  --c-bg:#FBF7F3;
  --c-surface:#FFFFFF;
  --c-surface-2:#F4EDE6;
  --c-ink:#241A22;
  --c-ink-2:#6A5C66;
  --c-ink-3:#9A8D95;
  --c-line:#EADFD6;
  --c-dark-text:#FFF6EF;
  --c-success:#2F7D5C;
  --c-warn:#C4321C;
  --c-tip:#B9791C;
  --sh-1:0 1px 2px rgba(36,26,34,.06),0 8px 20px -12px rgba(36,26,34,.16);
  --sh-2:0 2px 4px rgba(36,26,34,.07),0 18px 36px -18px rgba(36,26,34,.22);
  --r-card:16px;
  --r-lg:24px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:12px;
  --w-container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:1.1em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--w-container);margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section-white{background:var(--c-surface)}
.section-alt{background:var(--c-surface-2)}
.section-dark{background:var(--c-secondary);color:var(--c-dark-text)}
.section-dark .sec-title{color:#fff}
.section-dark .sec-desc{color:rgba(255,246,239,.78)}
.section-line{border-top:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:8px}
.sec-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.sec-desc{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:720px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);text-transform:uppercase}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;height:76px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--c-primary);flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2;font-weight:700;font-size:16px;letter-spacing:-.01em;white-space:nowrap}
.brand-text small{font-weight:400;font-size:11px;color:var(--c-ink-3);letter-spacing:.02em;margin-top:3px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;transition:color .18s ease}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a.active{color:var(--c-primary);font-weight:600}
.main-nav a.active::after{transform:scaleX(1)}
.header-cta{flex:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);align-items:center;justify-content:center;flex:none}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-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(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-backdrop{position:fixed;inset:0;background:rgba(36,26,34,.42);opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:70}
.drawer-backdrop.show{opacity:1;pointer-events:auto}
.nav-drawer{position:fixed;top:0;right:0;width:min(320px,86vw);height:100%;background:var(--c-surface);z-index:80;transform:translateX(104%);transition:transform .28s ease;padding:22px 22px 32px;display:flex;flex-direction:column;gap:4px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;font-weight:700;font-size:16px;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:8px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface-2);font-size:18px;line-height:1}
.nav-drawer a{display:flex;align-items:center;height:48px;font-size:15px;font-weight:500;color:var(--c-ink-2);border-bottom:1px solid var(--c-line)}
.nav-drawer a.active{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:22px;justify-content:center;border-bottom:0!important;color:#fff!important}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 18px -12px rgba(224,82,45,.9)}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:0 14px 26px -14px rgba(185,60,30,.9)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:rgba(224,82,45,.08)}
.btn-light{background:#fff;color:var(--c-secondary-deep)}
.btn-light:hover{background:var(--c-accent);color:var(--c-secondary-deep)}
.btn-ghost{color:var(--c-primary);font-weight:600;border-bottom:1.5px solid rgba(224,82,45,.5);padding:0 0 2px;height:auto;border-radius:0}
.btn-ghost:hover{border-color:var(--c-primary)}

/* ---------- category head ---------- */
.cat-hero{background:var(--c-bg);padding:34px 0 0;position:relative;overflow:hidden}
.cat-hero::after{content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;border-radius:50%;background:rgba(107,43,87,.06);z-index:0}
.cat-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:20px}
.breadcrumb a{color:var(--c-ink-2);transition:color .18s}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line)}
.cat-title{font-size:clamp(28px,4.2vw,44px);font-weight:700;line-height:1.22;letter-spacing:-.02em}
.cat-title em{font-style:normal;color:var(--c-primary)}
.cat-lead{margin-top:14px;max-width:760px;font-size:16px;color:var(--c-ink-2)}
.cat-rule{width:64px;height:4px;border-radius:4px;background:var(--c-primary);margin-top:22px}

/* ---------- meta bar ---------- */
.cat-meta{margin-top:30px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:18px 26px;display:flex;align-items:center;flex-wrap:wrap;gap:14px 34px}
.meta-item{display:flex;flex-direction:column;line-height:1.3}
.meta-item strong{font-size:20px;font-weight:700;color:var(--c-secondary);letter-spacing:-.01em}
.meta-item span{font-size:12px;color:var(--c-ink-3);letter-spacing:.02em;margin-top:4px}
.meta-tags{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:auto}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;background:var(--c-surface-2);border:1px solid var(--c-line);font-size:12px;color:var(--c-ink-2);letter-spacing:.02em}
.tag-accent{background:rgba(255,194,75,.24);border-color:rgba(255,194,75,.6);color:#7A4A05}

/* ---------- filter ---------- */
.filter-wrap{padding:26px 0 6px}
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.filter-chips{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.chip{height:36px;padding:0 18px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;color:var(--c-ink-2);transition:background .18s,border-color .18s,color .18s,box-shadow .18s}
.chip:hover{border-color:rgba(224,82,45,.55);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 16px -12px rgba(224,82,45,.9)}
.filter-sort{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-ink-2)}
.filter-sort select{height:36px;border-radius:var(--r-input);border:1px solid var(--c-line);background:var(--c-surface);padding:0 12px;color:var(--c-ink);font-size:14px;transition:border-color .18s,box-shadow .18s}
.filter-sort select:hover{border-color:rgba(224,82,45,.5)}
.filter-sort select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(224,82,45,.14);outline:none}

/* ---------- post list ---------- */
.post-list{display:flex;flex-direction:column;margin-top:10px}
.post-row{display:grid;grid-template-columns:210px 1fr;gap:26px;padding:26px 8px;border-bottom:1px solid var(--c-line);transition:background .18s ease,padding-left .18s ease}
.post-row:last-child{border-bottom:0}
.post-row:hover{background:rgba(244,237,230,.62);border-radius:var(--r-card)}
.post-thumb{display:block;border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-2);aspect-ratio:4/3}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease}
.post-row:hover .post-thumb img{transform:scale(1.05)}
.post-body{min-width:0;display:flex;flex-direction:column}
.badge-cat{display:inline-flex;align-items:center;align-self:flex-start;height:24px;padding:0 10px;border-radius:8px;background:var(--c-secondary);color:#fff;font-size:12px;letter-spacing:.02em}
.post-body h3{margin:10px 0 8px;font-size:19px;font-weight:600;line-height:1.42}
.post-body h3 a{transition:color .18s}
.post-body h3 a:hover{color:var(--c-primary)}
.post-body p{font-size:14px;line-height:1.72;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:auto;padding-top:12px;font-size:13px;color:var(--c-ink-3)}
.post-foot time{display:inline-flex;align-items:center;gap:6px}
.post-arrow{margin-left:auto;color:var(--c-primary);font-weight:600;font-size:13px;transition:transform .18s}
.post-row:hover .post-arrow{transform:translateX(3px)}
.empty-state{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);color:var(--c-ink-2);font-size:14px;text-align:center;padding:24px}
.empty-dot{width:46px;height:46px;border-radius:50%;background:var(--c-surface-2);display:grid;place-items:center;color:var(--c-ink-3);font-size:20px}

/* ---------- guide ---------- */
.guide-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
.guide-item{position:relative;padding-left:18px;margin-top:26px}
.guide-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--c-accent)}
.guide-item h3{font-size:17px;font-weight:600;line-height:1.45}
.guide-item p{margin-top:6px;font-size:14px;line-height:1.74}
.guide-media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;background:rgba(255,255,255,.12);box-shadow:var(--sh-2)}
.guide-media img{width:100%;height:100%;object-fit:cover}
.section-dark .guide-item h3{color:#fff}
.section-dark .guide-item p{color:rgba(255,246,239,.78)}

/* ---------- top3 ---------- */
.top3-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}
.top3-card{display:flex;gap:16px;align-items:flex-start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--sh-1);transition:box-shadow .2s,transform .2s,border-color .2s}
.top3-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(224,82,45,.32)}
.top3-num{font-size:34px;font-weight:800;line-height:1;color:rgba(107,43,87,.2);letter-spacing:-.04em;flex:none;font-variant-numeric:tabular-nums}
.top3-card h3{font-size:16px;font-weight:600;line-height:1.45;transition:color .18s}
.top3-card:hover h3{color:var(--c-primary)}
.top3-card p{margin-top:8px;font-size:13px;line-height:1.66;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- column cards ---------- */
.col-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
.col-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 20px;transition:box-shadow .2s,transform .2s,border-color .2s}
.col-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(107,43,87,.28)}
.col-icon{width:38px;height:38px;border-radius:11px;background:rgba(107,43,87,.1);display:grid;place-items:center;color:var(--c-secondary);font-weight:700;font-size:15px}
.col-card h3{margin-top:14px;font-size:15px;font-weight:600;line-height:1.45}
.col-card p{margin-top:6px;font-size:13px;line-height:1.66;color:var(--c-ink-2)}

/* ---------- tail ---------- */
.tail-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}
.tail-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;color:#fff}
.tail-desc{margin-top:12px;font-size:15px;color:rgba(255,246,239,.8);max-width:440px}
.tail-links{display:grid;gap:12px}
.tail-link{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:16px 18px;transition:background .2s,border-color .2s,transform .2s}
.tail-link:hover{background:rgba(255,255,255,.16);border-color:rgba(255,194,75,.5);transform:translateY(-2px)}
.tail-link .dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);flex:none}
.tail-link span{font-size:15px;font-weight:500;line-height:1.5}
.back-home{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-size:14px;color:var(--c-accent);font-weight:600;transition:gap .18s}
.back-home:hover{gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-secondary-deep);color:rgba(255,246,239,.82);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text small{color:rgba(255,246,239,.55)}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,246,239,.68);max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,246,239,.72);padding:5px 0;transition:color .18s}
.footer-col a:hover{color:var(--c-accent)}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{font-size:13.5px;color:rgba(255,246,239,.66);padding:5px 0;line-height:1.7}
.footer-bottom{border-top:1px solid rgba(255,246,239,.16);margin-top:44px;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,246,239,.56)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .header-inner{gap:18px}
  .main-nav{gap:20px}
  .col-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .container{padding:0 24px}
  .section{padding:56px 0}
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .header-inner{height:68px}
  .guide-grid{grid-template-columns:1fr;gap:36px}
  .guide-media{order:-1}
  .top3-grid{grid-template-columns:1fr}
  .tail-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:40px 0}
  .cat-hero{padding-top:26px}
  .cat-lead{font-size:15px}
  .cat-meta{padding:16px 18px;gap:12px 24px}
  .meta-tags{margin-left:0;width:100%}
  .filter-chips{gap:8px}
  .chip{height:34px;padding:0 14px;font-size:13px}
  .post-row{grid-template-columns:1fr;gap:14px;padding:22px 4px}
  .post-thumb{aspect-ratio:16/9}
  .post-body h3{font-size:17px}
  .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .cat-title{font-size:26px}
  .col-grid{grid-template-columns:1fr}
  .top3-card{padding:20px 18px}
  .top3-num{font-size:28px}
  .brand-text{font-size:14px}
  .brand-text small{display:none}
}