/* roulang page: index */
:root{
  --brand:#23433C;
  --brand-deep:#17302B;
  --brand-soft:#E6EEEA;
  --accent:#C87A4A;
  --celadon:#7FA6A0;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --ink:#1B201F;
  --text:#2A3130;
  --muted:#6B7370;
  --r-card:16px;
  --r-img:12px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.05);
  --shadow-md:0 12px 32px rgba(20,24,26,.10);
  --ease:240ms cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--paper);color:var(--text);font-family:var(--font-sans);font-size:16px;line-height:1.75;letter-spacing:.01em;overflow-x:hidden}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);font-weight:700;letter-spacing:-.01em}
::selection{background:var(--brand-soft);color:var(--brand-deep)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:56px 0}
.section-tight{padding:24px 0}
@media(min-width:768px){
  .section{padding:72px 0}
  .section-tight{padding:28px 0}
}
@media(min-width:1024px){.section{padding:96px 0}}
@media(min-width:1280px){.section{padding:104px 0}}

.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;color:var(--brand);text-transform:uppercase}
.section-head{display:flex;flex-direction:column;gap:12px;margin-bottom:32px}
.section-title{font-size:clamp(24px,3vw,36px);line-height:1.2}
.section-note{font-size:13px;color:var(--muted)}
@media(min-width:768px){
  .section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:14px 28px;border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-secondary:hover{border-color:var(--brand);background:var(--brand-soft)}
.btn-ghost{background:transparent;border-color:rgba(247,245,240,.45);color:#F2F0E9}
.btn-ghost:hover{background:rgba(247,245,240,.14);transform:translateY(-1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);display:inline-flex;align-items:center;justify-content:center;transition:background var(--ease),border-color var(--ease),color var(--ease),transform var(--ease)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.circle-btn{width:40px;height:40px;border-radius:var(--r-pill);border:1px solid rgba(247,245,240,.32);color:#EFEDE6;display:inline-flex;align-items:center;justify-content:center;transition:background var(--ease),transform var(--ease),border-color var(--ease)}
.circle-btn:hover{background:rgba(247,245,240,.14);border-color:rgba(247,245,240,.6);transform:translateY(-1px)}

/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(247,245,240,0);border-bottom:1px solid transparent;transition:background var(--ease),border-color var(--ease),box-shadow var(--ease)}
.site-header.is-scrolled{background:rgba(247,245,240,.95);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(20,24,26,.03)}
.nav{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px}
@media(min-width:1024px){.nav{height:64px;gap:24px}}
.nav-left{display:flex;align-items:center;gap:24px;min-width:0}
@media(min-width:1024px){.nav-left{gap:40px}}
.logo{display:inline-flex;align-items:center;gap:8px;flex:none}
.logo-text{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
@media(min-width:1024px){.logo-text{font-size:20px}}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:var(--r-sm);background:var(--brand);color:#fff;font-family:var(--font-sans);font-size:12px;font-weight:700;letter-spacing:.02em}
.nav-menu{display:none}
@media(min-width:1024px){.nav-menu{display:flex;align-items:center;gap:28px}}
.nav-link{position:relative;display:inline-flex;align-items:center;height:44px;font-size:15px;color:var(--text);transition:color var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:8px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left center;transition:transform 200ms ease}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);background:var(--brand)}
.nav-divider{display:none;width:1px;height:24px;background:var(--line)}
@media(min-width:1024px){.nav-divider{display:block}}
.nav-right{display:flex;align-items:center;gap:10px;flex:none}
.search-panel{width:0;opacity:0;overflow:hidden;transition:width 200ms ease,opacity 200ms ease}
.search-panel.is-open{width:240px;opacity:1}
.search-panel input{width:100%;height:40px;padding:0 12px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--text);font-size:14px}
.search-panel input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(200,122,74,.45)}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.menu-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.menu-btn:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.menu-btn{display:none}}

/* ===== 抽屉 ===== */
.drawer{position:fixed;inset:0;z-index:60;background:rgba(27,32,31,.42);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease)}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{position:absolute;top:0;right:0;width:min(88vw,360px);height:100%;background:var(--paper);padding:18px 22px 28px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;transform:translateX(100%);transition:transform var(--ease)}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;min-height:52px;padding:12px 0;font-size:17px;color:var(--text);border-bottom:1px solid var(--line)}
.drawer-nav a.is-active{color:var(--brand);font-weight:600}
.drawer-search input{width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;font-size:15px}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(200,122,74,.45)}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--muted);line-height:1.8;border-top:1px solid var(--line);padding-top:16px}

/* ===== Hero ===== */
.hero{padding-top:32px;padding-bottom:48px}
@media(min-width:1024px){.hero{padding-top:48px;padding-bottom:72px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:start}
@media(min-width:1024px){.hero-grid{grid-template-columns:55fr 45fr;gap:56px}}
.hero-copy{min-width:0}
.hero-copy > *{opacity:0;transform:translateY(16px);animation:heroIn 520ms cubic-bezier(.22,.61,.36,1) forwards}
.hero-copy > *:nth-child(1){animation-delay:40ms}
.hero-copy > *:nth-child(2){animation-delay:100ms}
.hero-copy > *:nth-child(3){animation-delay:160ms}
.hero-copy > *:nth-child(4){animation-delay:220ms}
.hero-copy > *:nth-child(5){animation-delay:280ms}
@keyframes heroIn{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion: reduce){
  .hero-copy > *{animation:none;opacity:1;transform:none}
}
.hero-title{font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.02em;margin-top:16px}
.hero-sub{margin-top:20px;font-size:17px;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-tags{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:30px;font-size:13px;color:var(--muted)}
.hero-tags li{display:flex;align-items:center;gap:12px;white-space:nowrap}
.hero-tags li + li::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block}
.hero-visual{min-width:0}
.media{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--line);background:#EFEBE3}
.media img{width:100%;height:100%;object-fit:cover}
.media-portrait{aspect-ratio:4/5}
.media-wide{aspect-ratio:16/10}
.media-square{aspect-ratio:1/1}
.media-43{aspect-ratio:4/3}
.media-32{aspect-ratio:3/2}
.hero-float{position:absolute;left:16px;bottom:16px;right:16px;display:flex;align-items:center;gap:14px;padding:16px;border-radius:var(--r-img);background:var(--surface);box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.hero-float-num{font-family:var(--font-serif);font-size:22px;color:var(--accent);font-variant-numeric:tabular-nums}
.hero-float-title{font-size:15px;font-weight:600;color:var(--ink);font-family:var(--font-sans)}
.hero-float-meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

/* ===== 导览条 ===== */
.chip-bar{display:flex;gap:10px;overflow-x:auto;scroll-snap-type:x proximity;padding:4px 0 10px;-webkit-overflow-scrolling:touch}
.chip-bar::-webkit-scrollbar{height:0}
.chip{flex:none;scroll-snap-align:start;display:inline-flex;align-items:center;min-height:40px;padding:8px 18px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--text);font-size:14px;transition:background var(--ease),color var(--ease),border-color var(--ease)}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ===== 封面区 ===== */
.cover-panel{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:1024px){.cover-panel{grid-template-columns:6fr 6fr;gap:48px}}
.cover-media{aspect-ratio:16/11}
.cover-title{font-size:clamp(24px,3vw,36px);line-height:1.22;margin-top:16px}
.cover-text{margin-top:18px;font-size:16px;color:var(--text);line-height:1.9}
.cover-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.cover-list li{display:flex;gap:12px;font-size:14px;color:var(--muted)}
.cover-list li::before{content:"";width:6px;height:6px;background:var(--accent);margin-top:9px;flex:none}
.cover-panel .btn{margin-top:26px}

/* ===== 目录 ===== */
.toc-grid{display:grid;grid-template-columns:1fr}
@media(min-width:1024px){.toc-grid{grid-template-columns:1fr 1fr;column-gap:40px}}
.toc-row{position:relative;display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:6px 16px;min-height:56px;padding:14px 16px 14px 20px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.toc-row::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:0;background:var(--accent);transition:width var(--ease)}
.toc-row:hover{background:var(--brand-soft)}
.toc-row:hover::before{width:3px}
.toc-num{font-family:var(--font-serif);font-size:15px;color:var(--accent);font-variant-numeric:tabular-nums}
.toc-name{font-size:17px;font-weight:600;color:var(--ink);min-width:0}
.toc-count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.toc-arrow{color:var(--celadon);transition:transform var(--ease),color var(--ease)}
.toc-row:hover .toc-arrow{transform:translateX(4px);color:var(--brand)}
.toc-row:hover .toc-name{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:6px;text-decoration-color:var(--accent)}
@media(max-width:639px){
  .toc-row{grid-template-columns:auto 1fr;gap:4px 12px;padding:16px 12px 16px 18px}
  .toc-count{grid-column:2}
  .toc-arrow{display:none}
}

/* ===== 卡片 ===== */
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.20)}
.zoom{overflow:hidden}
.zoom img{transition:transform 600ms ease-out}
.card:hover .zoom img{transform:scale(1.03)}
.card-body{padding:24px}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;line-height:1.5}
.badge-outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.card-title{font-size:19px;line-height:1.4;color:var(--ink);font-weight:700}
.card-text{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:18px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}

.feature-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:1024px){.feature-grid{grid-template-columns:7fr 5fr}}
.feature-side{display:grid;grid-template-rows:1fr;gap:24px}
@media(min-width:640px){.feature-side{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.feature-side{grid-template-columns:1fr;grid-template-rows:1fr 1fr}}
.h-card{display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:center;padding:16px}
@media(min-width:640px) and (max-width:1023px){.h-card{grid-template-columns:1fr;align-items:start}}
.h-card .zoom{aspect-ratio:1/1;border-radius:var(--r-img);border:1px solid var(--line);background:#EFEBE3}
.h-card-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.h-card-text{margin-top:8px;font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 最新信息 ===== */
.latest-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media(min-width:1024px){.latest-grid{grid-template-columns:3fr 9fr;gap:48px}}
.latest-aside{align-self:start}
.latest-aside p{margin-top:14px;font-size:14px;color:var(--muted);line-height:1.8}
.latest-aside .btn{margin-top:20px}
.info-list{border-top:1px solid var(--line)}
.info-row{position:relative;display:flex;justify-content:space-between;gap:20px;min-height:92px;padding:22px 12px 22px 18px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.info-row::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:0;background:var(--accent);transition:width var(--ease)}
.info-row:hover{background:var(--brand-soft)}
.info-row:hover::before{width:3px}
.info-main{min-width:0;flex:1}
.info-title{margin-top:10px;font-family:var(--font-sans);font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;transition:color var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-row:hover .info-title{color:var(--brand);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:5px;text-decoration-color:var(--accent)}
.info-summary{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.info-side{flex:none;display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:12px}
.info-time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.info-arrow{color:var(--celadon);transition:transform var(--ease),color var(--ease)}
.info-row:hover .info-arrow{transform:translateX(4px);color:var(--brand)}
.info-more{margin-top:22px;font-size:14px;color:var(--brand);font-weight:600;border-bottom:1px solid var(--brand);display:inline-block;padding-bottom:2px}
.info-more:hover{border-bottom-width:2px}
@media(max-width:639px){
  .info-row{flex-direction:column;gap:10px}
  .info-side{flex-direction:row;align-items:center;justify-content:flex-start;gap:14px}
}
.empty-state{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;border-bottom:1px solid var(--line)}
.empty-state svg{color:var(--celadon)}
.empty-state p{font-size:15px;color:var(--muted)}
.empty-state a{font-size:14px;color:var(--brand);font-weight:600;border-bottom:1px solid var(--brand);padding-bottom:2px}

/* ===== 相关推荐 ===== */
.reco-track{display:grid;grid-auto-flow:column;grid-auto-columns:80%;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 0 16px}
.reco-track::-webkit-scrollbar{height:0}
.reco-track .card{scroll-snap-align:start}
@media(min-width:640px){.reco-track{grid-auto-columns:46%}}
@media(min-width:1024px){.reco-track{grid-auto-columns:calc((100% - 60px)/4);overflow:visible}}

/* ===== CTA 带 ===== */
.cta-band{background:var(--brand-deep);color:#F1EFE9;border-radius:20px;padding:48px 24px}
@media(min-width:768px){.cta-band{padding:64px 48px}}
.cta-inner{display:flex;flex-direction:column;gap:28px}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-band h2{color:#F7F5F0;font-size:clamp(24px,3vw,34px);line-height:1.24}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(247,245,240,.76);max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-band .btn-primary{background:#F1EFE9;color:var(--brand-deep)}
.cta-band .btn-primary:hover{background:#fff;box-shadow:0 12px 32px rgba(0,0,0,.22)}
@media(max-width:639px){
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn,.cta-actions .circle-btn{width:100%}
  .cta-actions .circle-row{display:flex;gap:12px}
}

/* ===== FAQ ===== */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:20px 4px;font-size:16px;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:none;color:var(--accent);transition:transform 200ms ease}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 4px 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:70ch}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-deep);color:#D5DBD6;margin-top:0;padding:56px 0 0}
@media(min-width:1024px){.site-footer{padding-top:72px}}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}}
.footer-brand .logo-text{color:#F7F5F0}
.footer-brand .logo-mark{background:var(--celadon);color:var(--brand-deep)}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(213,219,214,.78);max-width:32em}
.footer-tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{font-size:12px;padding:4px 10px;border-radius:var(--r-sm);border:1px solid rgba(127,166,160,.42);color:#CBDBD6}
.footer-col h3{font-family:var(--font-sans);font-size:14px;font-weight:600;color:#F2F0E9;letter-spacing:.02em}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col p{font-size:14px;color:rgba(213,219,214,.78);line-height:1.7;transition:color var(--ease)}
.footer-col a:hover{color:#FFFFFF}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(247,245,240,.14);padding:20px 0 28px;display:flex;flex-direction:column;gap:8px;font-size:13px;color:rgba(213,219,214,.66)}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;gap:24px}}

/* ===== 滚动揭示 ===== */
html.js .reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms cubic-bezier(.22,.61,.36,1),transform 520ms cubic-bezier(.22,.61,.36,1)}
html.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
  .zoom img{transition:none}
}

/* roulang page: category1 */
:root{
    --brand:#23433C;
    --brand-deep:#17302B;
    --brand-soft:#E6EEEA;
    --accent:#C87A4A;
    --celadon:#7FA6A0;
    --paper:#F7F5F0;
    --surface:#FFFFFF;
    --line:#E2DED5;
    --ink:#1B201F;
    --text:#2A3130;
    --muted:#6B7370;
    --danger:#B4362F;
    --r-card:16px;
    --r-img:12px;
    --r-sm:8px;
    --r-pill:999px;
    --shadow-sm:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.05);
    --shadow-md:0 12px 32px rgba(20,24,26,.10);
    --ease:240ms cubic-bezier(.22,.61,.36,1);
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    --font-sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    --nav-h:64px;
    --sec-y:96px;
  }
  @media (max-width:1023px){ :root{ --nav-h:56px; --sec-y:72px; } }
  @media (max-width:639px){ :root{ --sec-y:56px; } }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.75;
    letter-spacing:.01em;
    overflow-x:hidden;
  }
  img{ display:block; max-width:100%; }
  a{ color:inherit; text-decoration:none; }
  button,input{ font:inherit; color:inherit; }
  h1,h2,h3,h4{ font-family:var(--font-serif); color:var(--ink); margin:0; font-weight:700; }
  h1{ font-size:clamp(30px,4.6vw,56px); line-height:1.12; letter-spacing:-.02em; }
  h2{ font-size:clamp(22px,2.6vw,34px); line-height:1.2; }
  h3{ font-size:20px; line-height:1.35; }
  p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  ::selection{ background:var(--brand-soft); color:var(--ink); }
  :focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }

  .wrap{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }
  .section{ padding:var(--sec-y) 0; }
  .section-tight{ padding:calc(var(--sec-y) * .62) 0; }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background var(--ease), border-color var(--ease), box-shadow var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(247,245,240,.94);
    backdrop-filter:blur(8px);
    border-bottom-color:var(--line);
    box-shadow:0 1px 0 rgba(20,24,26,.02);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    gap:16px; height:var(--nav-h);
  }
  .nav-left{ display:flex; align-items:center; gap:40px; min-width:0; }
  .nav-right{ display:flex; align-items:center; gap:10px; }
  .nav-divider{ width:1px; height:22px; background:var(--line); flex:0 0 1px; }

  .logo{ display:inline-flex; align-items:center; gap:8px; flex:0 0 auto; }
  .logo-text{
    font-family:var(--font-serif); font-weight:700;
    font-size:20px; letter-spacing:-.01em; color:var(--ink);
  }
  .logo-mark{
    display:inline-flex; align-items:center; justify-content:center;
    min-width:26px; height:22px; padding:0 5px;
    background:var(--brand); color:#fff;
    font-size:11px; font-weight:700; letter-spacing:.06em;
    border-radius:6px; text-transform:lowercase;
  }

  .nav-menu{ display:flex; align-items:center; gap:28px; }
  .nav-link{
    position:relative; padding:6px 0;
    font-size:15px; color:var(--text);
    transition:color var(--ease);
  }
  .nav-link::after{
    content:""; position:absolute; left:0; bottom:0;
    height:2px; width:100%; background:var(--accent);
    transform:scaleX(0); transform-origin:left center;
    transition:transform 200ms ease;
  }
  .nav-link:hover{ color:var(--brand); }
  .nav-link:hover::after{ transform:scaleX(1); }
  .nav-link.is-active{ color:var(--brand); font-weight:600; }

  .search-panel{
    width:0; overflow:hidden;
    transition:width 200ms ease;
  }
  .search-panel input{
    width:240px; height:44px; padding:0 14px;
    background:var(--surface); color:var(--text);
    border:1px solid var(--line); border-radius:var(--r-sm);
    transition:border-color var(--ease), box-shadow var(--ease);
  }
  .search-panel input::placeholder{ color:var(--muted); }
  .search-panel input:focus{ outline:none; border-color:var(--accent); box-shadow:0 0 0 2px rgba(200,122,74,.28); }
  .search-panel.is-open{ width:240px; margin-right:6px; }

  .icon-btn{
    width:40px; height:40px; display:inline-flex; align-items:center; justify-content:center;
    background:transparent; border:1px solid transparent; border-radius:10px;
    color:var(--text); cursor:pointer;
    transition:background var(--ease), color var(--ease), border-color var(--ease);
  }
  .icon-btn:hover{ background:var(--brand-soft); color:var(--brand); }
  .menu-btn{ display:none; }

  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    padding:13px 26px; font-size:15px; font-weight:600; line-height:1;
    border-radius:var(--r-pill); border:1px solid transparent;
    cursor:pointer; white-space:nowrap;
    transition:background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease), box-shadow var(--ease);
  }
  .btn-primary{ background:var(--brand); color:#fff; box-shadow:var(--shadow-sm); }
  .btn-primary:hover{ background:var(--brand-deep); transform:translateY(-1px); }
  .btn-primary:active{ transform:translateY(0); }
  .btn-outline{ background:var(--surface); color:var(--ink); border-color:var(--line); }
  .btn-outline:hover{ background:var(--brand-soft); border-color:var(--brand); color:var(--brand); }
  .btn-ghost{ background:transparent; color:#F3F1EC; border-color:rgba(255,255,255,.4); }
  .btn-ghost:hover{ background:rgba(255,255,255,.10); border-color:rgba(255,255,255,.75); }
  .btn[disabled],.btn.is-disabled{ opacity:.45; box-shadow:none; pointer-events:none; }
  .nav-cta{ padding:11px 20px; font-size:14px; }

  /* ---------- Mobile drawer ---------- */
  .drawer-mask{
    position:fixed; inset:0; background:rgba(23,48,43,.42);
    opacity:0; visibility:hidden; transition:opacity var(--ease), visibility var(--ease);
    z-index:70;
  }
  .drawer-mask.is-open{ opacity:1; visibility:visible; }
  .mobile-drawer{
    position:fixed; top:0; right:0; bottom:0; width:min(88vw,380px);
    background:var(--paper); border-left:1px solid var(--line);
    transform:translateX(102%); transition:transform 260ms cubic-bezier(.22,.61,.36,1);
    z-index:80; display:flex; flex-direction:column; padding:20px 22px 28px;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{ transform:translateX(0); }
  .drawer-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:22px; }
  .drawer-search{ margin-bottom:24px; }
  .drawer-search input{
    width:100%; height:46px; padding:0 14px;
    background:var(--surface); border:1px solid var(--line); border-radius:var(--r-sm);
  }
  .drawer-search input:focus{ outline:none; border-color:var(--brand); box-shadow:0 0 0 2px rgba(35,67,60,.18); }
  .drawer-nav{ display:flex; flex-direction:column; gap:2px; }
  .drawer-nav a{
    display:flex; align-items:center; justify-content:space-between;
    min-height:52px; padding:0 4px;
    font-size:17px; color:var(--text);
    border-bottom:1px solid var(--line);
  }
  .drawer-nav a.is-active{ color:var(--brand); font-weight:600; }
  .drawer-foot{ margin-top:auto; padding-top:26px; font-size:13px; color:var(--muted); line-height:1.8; }
  .drawer-foot a{ color:var(--brand); }
  .no-scroll{ overflow:hidden; }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    margin-top:calc(var(--nav-h) * -1);
    padding-top:calc(var(--nav-h) + 32px);
    padding-bottom:calc(var(--sec-y) * .72);
    background:
      radial-gradient(120% 90% at 88% 0%, rgba(127,166,160,.16), transparent 60%),
      var(--paper);
    border-bottom:1px solid var(--line);
  }
  .hero-grid{
    display:grid; grid-template-columns:7fr 5fr;
    gap:56px; align-items:start;
  }
  .crumb{
    display:flex; align-items:center; gap:8px; flex-wrap:wrap;
    font-size:13px; color:var(--muted); margin-bottom:16px;
  }
  .crumb a{ color:var(--muted); transition:color var(--ease); }
  .crumb a:hover{ color:var(--brand); }
  .crumb .sep{ color:var(--celadon); }
  .crumb-current{ color:var(--ink); }
  .hero-copy h1{ max-width:14em; }
  .hero-lead{
    margin-top:20px; max-width:30em;
    font-size:17px; line-height:1.85; color:var(--text);
  }
  .hero-meta{
    display:flex; align-items:center; flex-wrap:wrap; gap:14px;
    margin-top:26px; font-size:13px; color:var(--muted);
  }
  .hero-meta span{ display:inline-flex; align-items:center; gap:8px; }
  .hero-meta span + span::before{
    content:""; display:inline-block; width:1px; height:12px;
    background:var(--line); margin-right:6px;
  }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:32px; }
  .hero-visual{ position:relative; }
  .hero-visual img{
    width:100%; aspect-ratio:4/5; object-fit:cover;
    border-radius:var(--r-card); border:1px solid var(--line);
    background:linear-gradient(180deg,#F1EEE7,#E9E5DC);
    box-shadow:var(--shadow-sm);
  }
  .hero-index{
    position:absolute; left:-14px; bottom:22px;
    font-family:var(--font-serif); font-size:44px; font-weight:700;
    color:var(--accent); background:var(--surface);
    border:1px solid var(--line); border-radius:var(--r-sm);
    padding:2px 14px; box-shadow:var(--shadow-sm);
    font-variant-numeric:tabular-nums;
  }
  .hero-chip{
    position:absolute; right:16px; bottom:16px; max-width:220px;
    background:var(--surface); border:1px solid var(--line);
    border-radius:var(--r-img); padding:14px 16px;
    box-shadow:var(--shadow-sm);
  }
  .hero-chip b{ display:block; font-family:var(--font-serif); font-size:15px; color:var(--ink); }
  .hero-chip small{ display:block; margin-top:4px; font-size:12px; color:var(--muted); }

  /* ---------- Section head ---------- */
  .section-head{
    display:flex; align-items:flex-end; justify-content:space-between;
    gap:24px; margin-bottom:36px;
  }
  .section-head p{ font-size:13px; color:var(--muted); }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-size:13px; font-weight:600; letter-spacing:.08em;
    color:var(--brand); margin-bottom:14px;
  }
  .eyebrow::before{ content:""; width:18px; height:2px; background:var(--accent); display:inline-block; }

  /* ---------- Category layout ---------- */
  .cat-layout{ display:grid; grid-template-columns:8fr 4fr; gap:56px; align-items:start; }
  .cat-aside{ order:2; position:sticky; top:calc(var(--nav-h) + 28px); }
  .cat-main{ order:1; min-width:0; }

  .side-card{
    background:var(--surface); border:1px solid var(--line);
    border-radius:var(--r-card); padding:26px 24px; box-shadow:var(--shadow-sm);
  }
  .side-card + .side-card{ margin-top:20px; }
  .side-card h3{ font-size:18px; margin-bottom:12px; }
  .side-card p{ font-size:15px; line-height:1.9; color:var(--text); }
  .side-list{ margin-top:18px; display:flex; flex-direction:column; gap:14px; }
  .side-list li{
    position:relative; padding-left:20px; font-size:14px; line-height:1.8; color:var(--muted);
  }
  .side-list li::before{
    content:""; position:absolute; left:0; top:9px;
    width:6px; height:6px; background:var(--accent); border-radius:2px;
  }
  .side-cta{ margin-top:22px; display:flex; flex-direction:column; gap:10px; }
  .side-cta .btn{ width:100%; }

  /* ---------- Index list ---------- */
  .toc{ border-top:1px solid var(--line); }
  .toc-row a{
    position:relative; display:grid; grid-template-columns:56px 1fr 28px;
    align-items:center; gap:14px;
    padding:18px 16px 18px 12px; min-height:56px;
    border-bottom:1px solid var(--line);
    transition:background var(--ease);
  }
  .toc-row a::before{
    content:""; position:absolute; left:0; top:12px; bottom:12px; width:0;
    background:var(--accent); border-radius:2px;
    transition:width 200ms ease;
  }
  .toc-row a:hover{ background:var(--brand-soft); }
  .toc-row a:hover::before{ width:3px; }
  .toc-num{
    font-family:var(--font-serif); font-size:15px; font-weight:700;
    color:var(--accent); font-variant-numeric:tabular-nums;
    border:1px solid var(--line); border-radius:var(--r-sm);
    display:inline-flex; align-items:center; justify-content:center;
    height:34px; background:var(--surface);
  }
  .toc-title{
    display:block; font-family:var(--font-serif);
    font-size:17px; font-weight:600; color:var(--ink);
    transition:color var(--ease);
  }
  .toc-row a:hover .toc-title{ color:var(--brand); text-decoration:underline; text-decoration-thickness:2px; text-underline-offset:4px; }
  .toc-desc{
    display:block; margin-top:6px;
    font-size:14px; line-height:1.7; color:var(--muted);
    display:-webkit-box; -webkit-line-clamp:1; -webkit-box-orient:vertical; overflow:hidden;
  }
  .toc-go{ color:var(--celadon); font-size:18px; text-align:right; transition:transform var(--ease), color var(--ease); }
  .toc-row a:hover .toc-go{ transform:translateX(4px); color:var(--brand); }
  .list-foot{ margin-top:28px; text-align:center; }
  .text-link{
    display:inline-flex; align-items:center; gap:6px;
    font-size:14px; color:var(--brand); font-weight:600;
    border-bottom:1px solid transparent; transition:border-color var(--ease);
  }
  .text-link:hover{ border-bottom-color:var(--brand); }

  /* ---------- Related cards ---------- */
  .card-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
  .card{
    display:flex; flex-direction:column; overflow:hidden;
    background:var(--surface); border:1px solid var(--line);
    border-radius:var(--r-card); box-shadow:var(--shadow-sm);
    transition:transform var(--ease), box-shadow var(--ease), border-color var(--ease);
  }
  .card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:rgba(35,67,60,.20); }
  .card-thumb{ overflow:hidden; border-bottom:1px solid var(--line); }
  .card-thumb img{
    width:100%; aspect-ratio:3/2; object-fit:cover;
    background:linear-gradient(180deg,#F1EEE7,#E9E5DC);
    transition:transform 600ms ease-out;
  }
  .card:hover .card-thumb img{ transform:scale(1.03); }
  .card-body{ padding:20px 22px 24px; }
  .badge{
    display:inline-flex; align-items:center;
    padding:4px 10px; border-radius:var(--r-sm);
    background:var(--brand-soft); color:var(--brand);
    font-size:12px; font-weight:600; letter-spacing:.02em;
  }
  .badge-outline{ background:transparent; border:1px solid var(--accent); color:var(--accent); }
  .card-title{
    margin-top:12px; font-family:var(--font-serif);
    font-size:18px; font-weight:600; color:var(--ink); line-height:1.45;
    display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
  }
  .card-text{ margin-top:10px; font-size:14px; line-height:1.8; color:var(--muted); }
  .card-meta{ margin-top:16px; font-size:13px; color:var(--muted); font-variant-numeric:tabular-nums; }

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--brand-deep); color:#F3F1EC;
    border-radius:20px; padding:56px 48px;
    display:grid; grid-template-columns:1fr auto; gap:36px; align-items:center;
  }
  .cta-band h2{ color:#F7F5F0; }
  .cta-band p{ margin-top:12px; font-size:15px; line-height:1.85; color:rgba(243,241,236,.78); max-width:34em; }
  .cta-actions{ display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
  .round-btn{
    width:42px; height:42px; display:inline-flex; align-items:center; justify-content:center;
    border-radius:50%; border:1px solid rgba(255,255,255,.35);
    color:#F3F1EC; background:transparent; cursor:pointer;
    transition:background var(--ease), border-color var(--ease);
  }
  .round-btn:hover{ background:rgba(255,255,255,.12); border-color:rgba(255,255,255,.7); }

  /* ---------- FAQ ---------- */
  .faq{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
  .faq details{ border-bottom:1px solid var(--line); }
  .faq details:last-child{ border-bottom:none; }
  .faq summary{
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:22px 4px; cursor:pointer; list-style:none;
    font-size:16px; font-weight:600; color:var(--ink);
  }
  .faq summary::-webkit-details-marker{ display:none; }
  .faq summary .sign{
    flex:0 0 auto; width:22px; height:22px; position:relative;
    transition:transform 200ms ease;
  }
  .faq summary .sign::before,
  .faq summary .sign::after{
    content:""; position:absolute; background:var(--brand); border-radius:1px;
  }
  .faq summary .sign::before{ left:0; right:0; top:50%; height:1.5px; transform:translateY(-50%); }
  .faq summary .sign::after{ top:0; bottom:0; left:50%; width:1.5px; transform:translateX(-50%); }
  .faq details[open] summary .sign{ transform:rotate(45deg); }
  .faq-answer{ padding:0 4px 22px; font-size:15px; line-height:1.9; color:var(--muted); max-width:56em; }

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--surface); border-top:1px solid var(--line);
    padding:72px 0 32px; margin-top:var(--sec-y);
  }
  .footer-grid{
    display:grid; grid-template-columns:1.4fr 1fr 1fr 1.1fr;
    gap:40px; padding-bottom:44px; border-bottom:1px solid var(--line);
  }
  .footer-desc{ margin-top:16px; font-size:14px; line-height:1.9; color:var(--muted); max-width:30em; }
  .footer-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-top:18px; }
  .footer-tags span{
    font-size:12px; color:var(--brand); background:var(--brand-soft);
    padding:4px 10px; border-radius:var(--r-sm);
  }
  .footer-col h3{ font-size:14px; font-weight:600; margin-bottom:16px; color:var(--ink); }
  .footer-col ul{ display:flex; flex-direction:column; gap:12px; }
  .footer-col li a,.footer-col li p{ font-size:14px; color:var(--muted); line-height:1.7; transition:color var(--ease); }
  .footer-col li a:hover{ color:var(--brand); }
  .footer-bottom{
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
    padding-top:24px; font-size:13px; color:var(--muted);
  }

  /* ---------- Reveal motion ---------- */
  .reveal{ opacity:0; transform:translateY(16px); transition:opacity 520ms ease, transform 520ms ease; }
  .reveal.is-in{ opacity:1; transform:none; }
  @media (prefers-reduced-motion:reduce){
    .reveal{ opacity:1; transform:none; transition:none; }
    html{ scroll-behavior:auto; }
    *{ transition-duration:1ms !important; animation-duration:1ms !important; }
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1279px){
    .cat-layout{ gap:44px; }
    .hero-grid{ gap:44px; }
  }
  @media (max-width:1023px){
    .nav-menu,.nav-divider{ display:none; }
    .menu-btn{ display:inline-flex; }
    .search-panel{ display:none; }
    .hero-grid{ grid-template-columns:1fr; gap:36px; }
    .hero-copy h1{ max-width:none; font-size:clamp(30px,6vw,44px); }
    .hero-visual img{ aspect-ratio:16/10; }
    .cat-layout{ grid-template-columns:1fr; gap:36px; }
    .cat-aside{ position:static; top:auto; order:0; }
    .cat-main{ order:1; }
    .card-grid{ grid-template-columns:repeat(2,1fr); }
    .cta-band{ grid-template-columns:1fr; padding:44px 32px; border-radius:18px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
  }
  @media (max-width:639px){
    .wrap{ padding:0 18px; }
    .hero{ padding-top:calc(var(--nav-h) + 24px); }
    .nav-cta{ display:none; }
    .hero-index{ font-size:32px; left:10px; bottom:12px; }
    .hero-chip{ position:static; margin-top:14px; max-width:none; box-shadow:none; }
    .section-head{ flex-direction:column; align-items:flex-start; gap:10px; }
    .toc-row a{ grid-template-columns:46px 1fr; padding:16px 10px; }
    .toc-go{ display:none; }
    .toc-num{ height:30px; font-size:14px; }
    .card-grid{ grid-template-columns:1fr; }
    .cta-actions{ width:100%; }
    .cta-actions .btn{ width:100%; }
    .footer-grid{ grid-template-columns:1fr; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }

/* roulang page: article */
:root{
  --brand:#23433C;
  --brand-deep:#17302B;
  --brand-soft:#E6EEEA;
  --accent:#C87A4A;
  --celadon:#7FA6A0;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --ink:#1B201F;
  --text:#2A3130;
  --muted:#6B7370;
  --r-card:16px;
  --r-img:12px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.05);
  --shadow-md:0 12px 32px rgba(20,24,26,.10);
  --t:240ms cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);color:var(--ink);font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background 200ms ease,border-color 200ms ease,box-shadow 200ms ease;
}
.site-header.is-scrolled{
  background:rgba(247,245,240,.95);
  backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(20,24,26,.02);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.nav-left{display:flex;align-items:center;gap:40px;min-width:0}
.logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto}
.logo-text{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;line-height:1}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:6px;
  background:var(--brand);color:#fff;
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1;
}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;display:inline-block;font-size:15px;color:var(--text);padding:8px 0;transition:color var(--t)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left center;
  transition:transform 200ms ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-divider{width:1px;height:22px;background:var(--line);margin:0 12px;flex:0 0 auto}
.nav-right{display:flex;align-items:center;gap:10px}
.search-panel{width:0;overflow:hidden;transition:width 200ms ease}
.search-panel.is-open{width:240px}
.search-panel input{
  width:100%;height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font-size:14px;
}
.search-panel input::placeholder{color:var(--muted)}
.search-panel input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(200,122,74,.22)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  border:1px solid transparent;color:var(--ink);
  transition:background var(--t),border-color var(--t),color var(--t);
}
.icon-btn:hover{background:var(--brand-soft);border-color:var(--line);color:var(--brand)}
.menu-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;color:var(--ink);border:1px solid transparent}
.menu-btn:hover{background:var(--brand-soft);border-color:var(--line)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border-radius:var(--r-pill);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--paper);border:1px solid rgba(247,245,240,.45)}
.btn-ghost:hover{background:rgba(247,245,240,.12);border-color:rgba(247,245,240,.72)}
.btn-sm{padding:10px 20px;font-size:14px}
.nav-cta{padding:12px 22px;font-size:14px}

/* ---------- article layout ---------- */
main{display:block}
.crumb-bar{padding:28px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-shell{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:48px;padding-top:24px;padding-bottom:8px;
}
.article-main{max-width:760px;min-width:0}
.article-side{display:none}
.article-head{padding-bottom:8px}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);line-height:1.18;letter-spacing:-.02em;
  margin-bottom:18px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--brand);background:var(--brand-soft);
  padding:4px 10px;border-radius:var(--r-sm);
}
.meta-sep{width:1px;height:12px;background:var(--line)}
.rule{height:1px;background:var(--line);margin:22px 0 34px}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--text);letter-spacing:.01em}
.article-body>*+*{margin-top:1.2em}
.article-body p{margin:0}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,30px);line-height:1.25;
  margin-top:1.8em;margin-bottom:.6em;padding-left:14px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.44em;width:3px;height:18px;background:var(--accent)}
.article-body h3{font-size:20px;line-height:1.35;margin-top:1.4em;margin-bottom:.5em}
.article-body h4{font-size:17px;line-height:1.4;margin-top:1.2em;margin-bottom:.4em}
.article-body ul{margin:1.2em 0}
.article-body ul li{position:relative;padding-left:20px;margin:.5em 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:.74em;width:6px;height:6px;background:var(--accent)}
.article-body ol{counter-reset:item;margin:1.2em 0}
.article-body ol li{counter-increment:item;position:relative;padding-left:30px;margin:.55em 0}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:.28em;
  font-family:var(--font-serif);font-size:14px;color:var(--accent);
}
.article-body blockquote{
  background:var(--brand-soft);border-left:3px solid var(--brand);
  padding:20px 24px;border-radius:0 var(--r-img) var(--r-img) 0;
  font-size:16px;color:var(--ink);margin:1.6em 0;
}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);margin:1.6em auto;height:auto}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--paper);font-weight:600;color:var(--ink)}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{text-decoration-thickness:2px}
.article-body strong{color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

/* empty state */
.empty-state{
  min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;color:var(--muted);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px 24px;
}
.empty-state svg{color:var(--celadon)}
.empty-state p{font-size:15px}
.empty-state a{color:var(--brand);font-size:14px;text-decoration:underline;text-underline-offset:3px}

/* ---------- tags & share ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px}
.tag-row .tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--brand);background:var(--brand-soft);
  border-radius:var(--r-sm);padding:6px 12px;transition:background var(--t),color var(--t);
}
.tag-row .tag:hover{background:var(--brand);color:#fff}
.share-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:22px;padding:18px 22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
}
.share-bar .share-text{font-size:14px;color:var(--muted)}
.share-actions{display:flex;align-items:center;gap:10px}
.icon-actions{display:flex;align-items:center;gap:8px}
.icon-actions .icon-btn{width:40px;height:40px;border-radius:10px;background:var(--paper);border:1px solid var(--line);color:var(--brand)}
.icon-actions .icon-btn:hover{background:var(--brand-soft)}

/* ---------- post nav ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}
.post-nav-item{
  display:block;padding:20px 22px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-nav-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.20)}
.post-nav-label{display:block;font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:8px}
.post-nav-title{display:block;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
.post-nav-item.next{text-align:right}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:14px;color:var(--brand);
}
.back-link:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- sidebar ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--shadow-sm);margin-bottom:20px;
}
.side-card h3{font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.02em}
.toc-list li+li{margin-top:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--muted);padding:8px 10px;border-radius:var(--r-sm);
  line-height:1.5;transition:background var(--t),color var(--t);
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand)}
.toc-empty{font-size:13px;color:var(--muted);padding:6px 2px}
.side-links li+li{margin-top:10px}
.side-links a{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text);line-height:1.6}
.side-links a:hover{color:var(--brand)}
.side-links .num{font-family:var(--font-serif);font-size:13px;color:var(--accent);padding-top:2px}
.side-note{font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:16px}

/* ---------- related ---------- */
.section{padding:56px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.2}
.section-head .hint{font-size:13px;color:var(--muted)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.20)}
.card-media{position:relative;aspect-ratio:3/2;overflow:hidden;background:#F1EEE7}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 600ms ease-out}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body .cat{font-size:12px;color:var(--celadon);letter-spacing:.04em}
.card-body h3{font-size:17px;line-height:1.5;font-family:var(--font-sans);font-weight:600;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body .time{font-size:13px;color:var(--muted);margin-top:auto;font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary .plus{
  position:relative;flex:0 0 auto;width:18px;height:18px;color:var(--accent);
  transition:transform 200ms ease;
}
.faq-list summary .plus::before,
.faq-list summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;
  transform:translate(-50%,-50%);
}
.faq-list summary .plus::before{width:14px;height:1.5px}
.faq-list summary .plus::after{width:1.5px;height:14px}
.faq-list details[open] summary .plus{transform:rotate(45deg)}
.faq-list .answer{padding:0 0 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:76ch}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand-deep);color:var(--paper);border-radius:20px;margin:8px 0 0}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;padding:56px 32px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);line-height:1.24;margin-bottom:10px}
.cta-band p{color:rgba(247,245,240,.74);font-size:15px;max-width:46ch}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.cta-band .icon-actions .icon-btn{background:rgba(247,245,240,.10);border-color:rgba(247,245,240,.30);color:var(--paper)}
.cta-band .icon-actions .icon-btn:hover{background:rgba(247,245,240,.20)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(247,245,240,.78);margin-top:80px}
.site-footer .wrap{padding-top:64px;padding-bottom:28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(247,245,240,.14)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:var(--accent);color:#fff}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(247,245,240,.70);max-width:34ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-tags span{
  font-size:12px;color:rgba(247,245,240,.82);
  border:1px solid rgba(247,245,240,.24);border-radius:var(--r-sm);padding:4px 10px;
}
.footer-col h3{
  font-family:var(--font-sans);font-size:14px;font-weight:600;color:#fff;
  margin-bottom:16px;letter-spacing:.02em;
}
.footer-col li+li{margin-top:10px}
.footer-col a,.footer-col p{font-size:14px;line-height:1.8;color:rgba(247,245,240,.72);transition:color var(--t)}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;font-size:13px;color:rgba(247,245,240,.62)}
.footer-bottom p{font-variant-numeric:tabular-nums}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,24,26,.42);
  opacity:0;visibility:hidden;transition:opacity 200ms ease,visibility 200ms ease;z-index:60;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:70;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform 240ms cubic-bezier(.22,.61,.36,1);
  display:flex;flex-direction:column;padding:20px 22px 28px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-search{margin-bottom:24px}
.drawer-search input{
  width:100%;height:46px;padding:0 14px;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);
}
.drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(200,122,74,.22)}
.drawer-nav a{
  display:block;font-size:17px;color:var(--ink);padding:14px 2px;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--muted);line-height:1.8}
.drawer-cta{margin-top:18px;width:100%}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms ease,transform 520ms ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .card-media img,.card,.post-nav-item{transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .article-side{display:none}
}
@media (min-width:1280px){
  .article-shell{grid-template-columns:minmax(0,760px) 320px;gap:64px}
  .article-side{display:block;position:sticky;top:96px;align-self:start}
  .section{padding:96px 0}
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .menu-btn{display:inline-flex}
  .nav-left{gap:16px}
  .nav-divider{display:none}
  .nav-cta{display:none}
  .search-panel{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .nav{height:56px}
  .section{padding:56px 0}
  .article-shell{gap:36px;padding-top:16px}
  .article-body{font-size:16px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.next{text-align:left}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{padding:44px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .share-bar{flex-direction:column;align-items:flex-start}
  .breadcrumb .current{white-space:normal;max-width:100%}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-head h1{font-size:26px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* roulang page: category3 */
:root{
  --brand:#23433C;
  --brand-deep:#17302B;
  --brand-soft:#E6EEEA;
  --accent:#C87A4A;
  --celadon:#7FA6A0;
  --paper:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E2DED5;
  --ink:#1B201F;
  --text:#2A3130;
  --muted:#6B7370;
  --r-card:16px;
  --r-img:12px;
  --r-sm:8px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.05);
  --shadow-md:0 12px 32px rgba(20,24,26,.10);
  --t:240ms cubic-bezier(.22,.61,.36,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --font-sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.02em}
h2{font-size:clamp(24px,3vw,36px);line-height:1.2}
h3{font-size:20px;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:56px 0}
.section--tight{padding:40px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;line-height:1.6;color:var(--brand);font-weight:600;
  letter-spacing:.08em;text-transform:uppercase;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--accent)}
.lead{font-size:16px;line-height:1.9;color:var(--muted);max-width:64ch}
.meta{font-size:13px;line-height:1.6;color:var(--muted);font-variant-numeric:tabular-nums}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 28px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--brand);background:var(--brand-soft);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:rgba(247,245,240,.45);color:#F7F5F0}
.btn-ghost:hover{background:rgba(247,245,240,.12);border-color:rgba(247,245,240,.75);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:14px;min-height:40px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.icon-btn{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:var(--surface);color:var(--brand);
  transition:var(--t);
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-soft)}
.icon-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1.4;font-weight:600;
  padding:4px 10px;border-radius:var(--r-sm);
  background:var(--brand-soft);color:var(--brand);
}
.badge-outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:transparent;
  transition:background 200ms ease,box-shadow 200ms ease,border-color 200ms ease,backdrop-filter 200ms ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(247,245,240,.95);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
}
.nav{height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-left{display:flex;align-items:center;gap:40px;min-width:0}
.nav-divider{width:1px;height:24px;background:var(--line);flex:0 0 1px}
.nav-right{display:flex;align-items:center;gap:12px}

.logo{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em}
.logo-text{white-space:nowrap}
.logo-mark{
  display:inline-grid;place-items:center;width:26px;height:26px;border-radius:6px;
  background:var(--brand);color:#fff;font-family:var(--font-sans);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;color:var(--text);padding:6px 0;transition:color var(--t)}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform 200ms cubic-bezier(.22,.61,.36,1);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1);background:var(--brand)}

.search-panel{display:flex;align-items:center}
.search-panel input{
  width:0;opacity:0;height:44px;padding:0;border:1px solid transparent;
  border-radius:var(--r-sm);background:var(--surface);
  transition:width 200ms cubic-bezier(.22,.61,.36,1),opacity 200ms ease,padding 200ms ease,border-color 200ms ease;
}
.search-panel.is-open input{width:240px;opacity:1;padding:0 14px;border-color:var(--line);margin-left:4px}
.search-panel input:focus{outline:none;border:2px solid var(--accent);background:#fff}

.nav-cta{padding:10px 22px;font-size:14px}
.menu-btn{
  display:none;width:44px;height:44px;border-radius:10px;
  place-items:center;border:1px solid var(--line);background:var(--surface);color:var(--brand);
}
.menu-btn:hover{border-color:var(--brand);background:var(--brand-soft)}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:60;
  background:rgba(23,48,43,.42);
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.drawer.is-open{opacity:1;pointer-events:auto}
.drawer-inner{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,380px);
  background:var(--paper);padding:28px 24px 40px;
  transform:translateX(100%);transition:transform var(--t);
  display:flex;flex-direction:column;gap:26px;overflow-y:auto;
}
.drawer.is-open .drawer-inner{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);
}
.drawer-search input:focus{outline:none;border:2px solid var(--brand)}
.drawer-menu{display:flex;flex-direction:column}
.drawer-menu a{
  font-size:17px;padding:14px 0;border-bottom:1px solid var(--line);
  color:var(--text);transition:color var(--t),padding-left var(--t);
}
.drawer-menu a:hover{color:var(--brand);padding-left:6px}
.drawer-menu a.is-active{color:var(--brand);font-weight:600}
.drawer-foot{margin-top:auto;font-size:13px;color:var(--muted);line-height:1.8}

/* ---------- 分类页 Hero ---------- */
.cat-hero{padding:52px 0 64px}
.cat-hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:stretch;
  min-height:340px;
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;flex-wrap:wrap}
.crumbs a{transition:color var(--t)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--celadon)}
.crumbs .current{color:var(--ink)}
.cat-hero h1{margin-bottom:18px}
.cat-hero .lead{font-size:17px;max-width:52ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-facts{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:28px;font-size:13px;color:var(--muted)}
.hero-facts span{display:inline-flex;align-items:center;gap:14px}
.hero-facts span+span::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block}

.hero-visual{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:#EFEAE1;min-height:320px;
}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,32,31,0) 42%,rgba(27,32,31,.42) 100%);
}
.hero-num{
  position:absolute;right:22px;bottom:14px;z-index:2;
  font-family:var(--font-serif);font-size:clamp(48px,6vw,72px);
  line-height:1;color:rgba(247,245,240,.92);font-variant-numeric:tabular-nums;
}
.hero-chip{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:var(--surface);border-radius:var(--r-sm);
  padding:12px 16px;box-shadow:var(--shadow-sm);max-width:74%;
}
.hero-chip strong{display:block;font-family:var(--font-serif);font-size:15px;color:var(--ink)}
.hero-chip span{font-size:12px;color:var(--muted)}

/* ---------- 通用卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.20)}
.thumb{position:relative;overflow:hidden;background:#EFEAE1;border-radius:var(--r-img);border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform 600ms ease-out}
.card:hover .thumb img{transform:scale(1.03)}
.ratio-16-10{aspect-ratio:16/10}
.ratio-3-2{aspect-ratio:3/2}
.ratio-1-1{aspect-ratio:1/1}
.ratio-4-3{aspect-ratio:4/3}
.card-body{padding:22px 24px 24px}
.card-title{font-size:18px;line-height:1.45;color:var(--ink);font-family:var(--font-serif)}
.card-text{margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted)}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 排查线索时间轴 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{margin-top:12px}
.timeline{position:relative;padding-left:34px;border-left:1px solid var(--line);margin-left:6px}
.tl-item{position:relative;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-40px;top:8px;
  width:11px;height:11px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 5px var(--paper);
}
.tl-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.tl-num{
  font-family:var(--font-serif);font-size:15px;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.tl-item h3{font-size:19px;margin-bottom:8px}
.tl-item p{font-size:15px;line-height:1.9;color:var(--muted);max-width:70ch}
.tl-item p+p{margin-top:6px}

/* ---------- 现象对照 ---------- */
.grid-2{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.stack{display:flex;flex-direction:column;gap:24px}
.sym-list{margin-top:18px;display:flex;flex-direction:column}
.sym-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:14px 0;border-top:1px solid var(--line);
}
.sym-list li:first-child{border-top:0;padding-top:0}
.dot-sq{
  flex:0 0 8px;width:8px;height:8px;background:var(--accent);
  margin-top:9px;border-radius:2px;
}
.sym-list strong{display:block;font-size:15px;color:var(--ink);font-weight:600}
.sym-list span{font-size:14px;color:var(--muted);line-height:1.8}
.side-card{background:var(--brand-soft);border:1px solid var(--line);border-radius:var(--r-card);padding:24px}
.side-card h3{font-size:18px;margin-bottom:12px}
.side-card ul{display:flex;flex-direction:column;gap:10px;margin-bottom:20px}
.side-card li{font-size:14px;line-height:1.8;color:var(--text);padding-left:16px;position:relative}
.side-card li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  background:var(--brand);border-radius:2px;
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:20px;
  justify-content:space-between;padding:22px 0;
  font-size:16px;font-weight:600;color:var(--ink);transition:color var(--t);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand)}
.faq-ico{position:relative;flex:0 0 16px;width:16px;height:16px}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;background:var(--brand);border-radius:1px;
  transition:transform 200ms ease,opacity 200ms ease;
}
.faq-ico::before{left:0;top:7.5px;width:16px;height:1.5px}
.faq-ico::after{left:7.25px;top:0;width:1.5px;height:16px}
details[open] .faq-ico::after{transform:rotate(90deg);opacity:0}
.faq-body{padding:0 0 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:76ch}
.faq-body p+p{margin-top:10px}

/* ---------- 相关栏目 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  min-height:44px;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.20)}
.rel-card h3{font-size:18px}
.rel-card p{font-size:14px;line-height:1.8;color:var(--muted)}
.rel-more{
  display:inline-flex;align-items:center;gap:8px;margin-top:auto;
  font-size:14px;font-weight:600;color:var(--brand);
}
.rel-more svg{transition:transform var(--t)}
.rel-card:hover .rel-more svg{transform:translateX(4px)}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-deep);color:#F7F5F0;border-radius:20px;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#F7F5F0;max-width:22ch}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(247,245,240,.78);max-width:52ch}
.cta-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.cta-round{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(247,245,240,.35);color:#F7F5F0;background:transparent;
  transition:var(--t);
}
.cta-round:hover{background:rgba(247,245,240,.14);border-color:rgba(247,245,240,.7)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--paper);border-top:1px solid var(--line);margin-top:24px;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--muted);max-width:38ch}
.footer-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.footer-tags span{
  font-size:12px;color:var(--brand);background:var(--brand-soft);
  padding:4px 10px;border-radius:var(--r-sm);
}
.footer-col h3{font-size:14px;font-weight:600;margin-bottom:16px;font-family:var(--font-sans);letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color var(--t)}
.footer-col a:hover{color:var(--brand)}
.footer-col p{font-size:14px;color:var(--muted);line-height:1.85}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms ease,transform 520ms cubic-bezier(.22,.61,.36,1)}
.reveal[data-d="1"].is-in{transition-delay:60ms}
.reveal[data-d="2"].is-in{transition-delay:120ms}
.reveal[data-d="3"].is-in{transition-delay:180ms}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  .reveal.is-in{transition:none}
  .card:hover,.rel-card:hover,.btn:hover{transform:none}
  .thumb img,.card:hover .thumb img{transition:none;transform:none}
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .section{padding:72px 0}
  .section--tight{padding:48px 0}
}
@media (min-width:1024px){
  .section{padding:96px 0}
  .section--tight{padding:64px 0}
}
@media (min-width:1280px){
  .section{padding:104px 0}
  .section--tight{padding:72px 0}
}

@media (max-width:1023px){
  .nav-menu,.search-panel,.nav-cta,.nav-divider{display:none}
  .menu-btn{display:grid}
  .nav-left{gap:0}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;min-height:0}
  .hero-visual{min-height:260px;aspect-ratio:16/9}
  .grid-2{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px 32px}
}

@media (max-width:639px){
  .wrap{padding:0 18px}
  .cat-hero{padding:36px 0 48px}
  .cat-hero h1{font-size:clamp(28px,8vw,38px)}
  .cat-hero .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:10px}
  .hero-facts span+span::before{display:none}
  .section-head{margin-bottom:28px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-band{padding:36px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .timeline{padding-left:24px;margin-left:2px}
  .tl-item::before{left:-30px;width:9px;height:9px;box-shadow:0 0 0 4px var(--paper)}
  .card-body{padding:18px 18px 20px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
    --brand:#23433C;
    --brand-deep:#17302B;
    --brand-soft:#E6EEEA;
    --accent:#C87A4A;
    --celadon:#7FA6A0;
    --paper:#F7F5F0;
    --surface:#FFFFFF;
    --line:#E2DED5;
    --ink:#1B201F;
    --text:#2A3130;
    --muted:#6B7370;
    --r-card:16px;
    --r-img:12px;
    --r-sm:8px;
    --r-pill:999px;
    --shadow-sm:0 1px 2px rgba(20,24,26,.04), 0 8px 24px rgba(20,24,26,.05);
    --shadow-md:0 12px 32px rgba(20,24,26,.10);
    --ease:240ms cubic-bezier(.22,.61,.36,1);
    --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    --sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.75;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden;}
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button,input{font-family:inherit;font-size:inherit;color:inherit;}
  button{background:none;border:0;cursor:pointer;}
  h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  .section{padding:56px 0;}
  @media(min-width:768px){.section{padding:72px 0;}}
  @media(min-width:1024px){.section{padding:96px 0;}}
  @media(min-width:1280px){.section{padding:104px 0;}}

  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--accent);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:50;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(247,245,240,.95);
    backdrop-filter:blur(8px);
    border-bottom-color:var(--line);
  }
  .nav{
    height:64px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
  }
  .nav-left{display:flex;align-items:center;gap:40px;min-width:0;}
  .nav-right{display:flex;align-items:center;gap:12px;}
  .nav-divider{
    width:1px;height:24px;flex:0 0 1px;
    background:linear-gradient(to bottom,rgba(226,222,213,0),var(--line),rgba(226,222,213,0));
  }
  .logo{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;}
  .logo-text{
    font-family:var(--serif);
    font-size:19px;
    font-weight:700;
    color:var(--ink);
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .logo-mark{
    font-size:11px;
    font-weight:600;
    letter-spacing:.08em;
    padding:2px 6px;
    border:1px solid var(--brand);
    color:var(--brand);
    border-radius:6px;
    line-height:1.3;
  }
  .nav-menu{display:flex;align-items:center;gap:28px;}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 0;
    font-size:15px;
    line-height:1.4;
    color:var(--text);
    transition:color var(--ease);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;bottom:2px;
    width:100%;height:2px;
    background:var(--accent);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform 200ms cubic-bezier(.22,.61,.36,1);
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--brand);font-weight:600;}
  .nav-link.is-active::after{transform:scaleX(1);background:var(--brand);}

  .search-panel{
    width:0;
    overflow:hidden;
    transition:width 200ms cubic-bezier(.22,.61,.36,1);
  }
  .search-panel.is-open{width:240px;}
  .search-panel input{
    width:240px;
    height:40px;
    padding:0 12px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    font-size:14px;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .search-panel input:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 2px rgba(200,122,74,.35);
  }
  .icon-btn{
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:10px;
    background:var(--surface);
    color:var(--ink);
    transition:border-color var(--ease),background var(--ease),color var(--ease);
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
  .menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);}
  .menu-btn:hover{border-color:var(--brand);color:var(--brand);}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:44px;
    padding:14px 28px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    border-radius:var(--r-pill);
    border:1px solid transparent;
    transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  }
  .btn-primary{background:var(--brand);color:#fff;}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:var(--surface);
    color:var(--ink);
    border-color:var(--line);
  }
  .btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-ghost-light{
    background:transparent;
    color:#F7F5F0;
    border-color:rgba(247,245,240,.45);
  }
  .btn-ghost-light:hover{background:rgba(247,245,240,.12);border-color:#F7F5F0;}
  .btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;}
  .nav-cta{padding:11px 22px;min-height:40px;font-size:14px;}
  .icon-round{
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:50%;
    border:1px solid rgba(247,245,240,.4);
    color:#F7F5F0;
    transition:background var(--ease),border-color var(--ease);
  }
  .icon-round:hover{background:rgba(247,245,240,.14);border-color:#F7F5F0;}

  /* ---------- Breadcrumb / Eyebrow ---------- */
  .breadcrumb{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px;}
  .breadcrumb a{color:var(--muted);transition:color var(--ease);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:var(--celadon);}
  .breadcrumb .current{color:var(--ink);}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;
    letter-spacing:.14em;
    color:var(--brand);
    font-weight:600;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}

  /* ---------- Category hero ---------- */
  .cat-hero{padding:36px 0 0;}
  .cat-hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
    align-items:center;
  }
  .cat-hero-main h1{
    font-size:clamp(34px,5vw,52px);
    line-height:1.12;
    font-weight:700;
    margin:18px 0 16px;
  }
  .cat-lead{font-size:17px;line-height:1.85;color:var(--muted);max-width:48ch;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .stat-row{
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    margin-top:28px;padding-top:20px;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--muted);
  }
  .stat-row li{display:flex;align-items:center;gap:14px;}
  .stat-row li + li::before{content:"";width:1px;height:12px;background:var(--line);display:inline-block;}
  .hero-figure{
    position:relative;
    margin:0;
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-sm);
    background:#EFEBE3;
  }
  .hero-figure img{
    width:100%;
    aspect-ratio:4/5;
    object-fit:cover;
  }
  .float-card{
    position:absolute;
    left:16px;bottom:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    padding:12px 16px;
    box-shadow:var(--shadow-sm);
    max-width:calc(100% - 32px);
  }
  .float-card strong{display:block;font-family:var(--serif);font-size:15px;color:var(--ink);}
  .float-card span{display:block;font-size:12px;color:var(--muted);margin-top:2px;}
  .hero-index{
    position:absolute;top:14px;right:18px;
    font-family:var(--serif);
    font-size:52px;
    line-height:1;
    color:rgba(255,255,255,.92);
    text-shadow:0 2px 12px rgba(23,48,43,.45);
  }
  @media(min-width:1024px){
    .cat-hero{padding:64px 0 0;}
    .cat-hero-grid{grid-template-columns:1.05fr .95fr;gap:56px;min-height:340px;}
  }

  /* ---------- Section head ---------- */
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
  .section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.2;}
  .section-head .note{font-size:13px;color:var(--muted);max-width:46ch;line-height:1.7;}

  /* ---------- Mosaic wall ---------- */
  .mosaic{
    display:grid;
    grid-template-columns:1fr;
    grid-auto-rows:auto;
    gap:28px;
  }
  .tile{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-card);
    border:1px solid var(--line);
    background:#EFEBE3;
    box-shadow:var(--shadow-sm);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .tile img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform 600ms ease-out;
  }
  .tile::after{
    content:"";
    position:absolute;inset:0;
    background:rgba(27,32,31,.4);
    z-index:1;
    pointer-events:none;
  }
  .tile-body{
    position:absolute;
    left:20px;right:20px;bottom:18px;
    z-index:2;
    color:#fff;
  }
  .tile-body h3{
    color:#fff;
    font-size:18px;
    line-height:1.35;
    font-weight:700;
  }
  .tile-meta{font-size:13px;line-height:1.6;color:rgba(255,255,255,.8);margin-top:4px;}
  .tile-num{
    position:absolute;
    right:18px;bottom:14px;
    z-index:2;
    font-family:var(--serif);
    font-size:26px;
    color:rgba(255,255,255,.7);
    font-variant-numeric:tabular-nums;
  }
  .tile-badge{
    position:absolute;
    top:16px;left:16px;
    z-index:3;
    padding:4px 10px;
    font-size:12px;
    font-weight:600;
    border-radius:var(--r-sm);
    background:rgba(255,255,255,.94);
    color:var(--brand);
    opacity:0;
    transform:translateY(-6px);
    transition:opacity var(--ease),transform var(--ease);
  }
  .tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.2);}
  .tile:hover img{transform:scale(1.04);}
  .tile:hover .tile-badge,.tile:focus-within .tile-badge{opacity:1;transform:translateY(0);}
  .tile .tile-media{position:absolute;inset:0;}
  .tile .tile-media img{position:absolute;inset:0;}

  @media(min-width:640px){
    .mosaic{grid-template-columns:repeat(2,1fr);}
    .tile{aspect-ratio:4/3;}
    .tile.t-a,.tile.t-b,.tile.t-c,.tile.t-d,.tile.t-e,.tile.t-f,.tile.t-g,.tile.t-h{grid-column:span 1;}
  }
  @media(min-width:1024px){
    .mosaic{grid-template-columns:repeat(6,1fr);grid-auto-rows:190px;gap:28px;}
    .tile{aspect-ratio:auto;}
    .t-a{grid-column:span 3;grid-row:span 2;}
    .t-b{grid-column:span 3;grid-row:span 1;}
    .t-c{grid-column:span 3;grid-row:span 1;}
    .t-d{grid-column:span 2;grid-row:span 2;}
    .t-e{grid-column:span 4;grid-row:span 1;}
    .t-f{grid-column:span 4;grid-row:span 1;}
    .t-g{grid-column:span 3;grid-row:span 1;}
    .t-h{grid-column:span 3;grid-row:span 1;}
  }
  @media(hover:none){
    .tile-badge{opacity:1;transform:none;}
  }

  /* ---------- Order list ---------- */
  .order-panel{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-sm);
    padding:28px;
  }
  .order-grid{display:grid;grid-template-columns:1fr;gap:0;}
  .order-item{
    display:grid;
    grid-template-columns:auto 1fr;
    gap:16px;
    padding:22px 0;
    border-bottom:1px solid var(--line);
  }
  .order-item:first-child{padding-top:0;}
  .order-item:last-child{border-bottom:0;padding-bottom:0;}
  .order-no{
    font-family:var(--serif);
    font-size:20px;
    color:var(--accent);
    line-height:1.3;
    font-variant-numeric:tabular-nums;
  }
  .order-item h3{font-size:17px;line-height:1.4;margin-bottom:6px;}
  .order-item p{font-size:14px;line-height:1.85;color:var(--muted);}
  @media(min-width:768px){
    .order-grid{grid-template-columns:1fr 1fr;column-gap:48px;}
    .order-item:nth-child(odd){padding-right:0;}
  }

  /* ---------- Related cards ---------- */
  .rel-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media(min-width:640px){.rel-grid{grid-template-columns:repeat(2,1fr);}}
  @media(min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr);}}
  .rel-card{
    display:flex;
    flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(35,67,60,.2);}
  .rel-card img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform 600ms ease-out;}
  .rel-card:hover img{transform:scale(1.03);}
  .rel-body{padding:22px 24px 24px;}
  .rel-body h3{font-size:18px;line-height:1.4;margin-bottom:8px;}
  .rel-body p{font-size:14px;line-height:1.8;color:var(--muted);}
  .rel-more{
    display:inline-flex;align-items:center;gap:6px;
    margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);
  }
  .rel-more span{position:relative;}
  .rel-more span::after{
    content:"";position:absolute;left:0;bottom:-2px;width:100%;height:1px;
    background:currentColor;transform:scaleX(0);transform-origin:left;
    transition:transform 200ms cubic-bezier(.22,.61,.36,1);
  }
  .rel-card:hover .rel-more span::after{transform:scaleX(1);}
  .badge{
    display:inline-flex;align-items:center;
    padding:4px 10px;
    font-size:12px;
    font-weight:600;
    line-height:1.4;
    border-radius:var(--r-sm);
    background:var(--brand-soft);
    color:var(--brand);
  }
  .badge-outline{
    background:transparent;
    border:1px solid var(--accent);
    color:var(--accent);
    font-family:var(--serif);
    font-variant-numeric:tabular-nums;
  }

  /* ---------- CTA band ---------- */
  .cta-band{
    background:var(--brand-deep);
    border-radius:20px;
    padding:44px 28px;
    color:#F7F5F0;
  }
  .cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.25;}
  .cta-band p{color:rgba(247,245,240,.76);font-size:15px;line-height:1.85;margin-top:12px;max-width:52ch;}
  .cta-inner{display:flex;flex-direction:column;gap:28px;}
  .cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
  @media(min-width:1024px){
    .cta-band{padding:64px 56px;}
    .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:48px;}
    .cta-actions{flex:0 0 auto;}
  }
  @media(max-width:639px){
    .cta-actions{flex-direction:column;align-items:stretch;}
    .cta-actions .btn{width:100%;}
    .cta-actions .icon-round{align-self:center;}
  }

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:22px 0;
    font-family:var(--serif);
    font-size:16px;
    font-weight:700;
    color:var(--ink);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-sign{
    flex:0 0 auto;
    width:28px;height:28px;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    color:var(--brand);
    transition:transform 200ms cubic-bezier(.22,.61,.36,1),border-color var(--ease),background var(--ease);
  }
  .faq-item summary:hover .faq-sign{border-color:var(--brand);background:var(--brand-soft);}
  .faq-item[open] .faq-sign{transform:rotate(45deg);}
  .faq-body{padding:0 0 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:78ch;}

  /* ---------- Footer ---------- */
  .site-footer{
    margin-top:64px;
    background:var(--brand-deep);
    color:rgba(247,245,240,.82);
    padding:56px 0 28px;
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
  @media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px;}}
  .site-footer .logo-text{color:#F7F5F0;}
  .site-footer .logo-mark{border-color:rgba(247,245,240,.55);color:#F7F5F0;}
  .footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,245,240,.7);max-width:38ch;}
  .footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .footer-tags span{
    font-size:12px;
    padding:4px 10px;
    border:1px solid rgba(247,245,240,.24);
    border-radius:var(--r-sm);
    color:rgba(247,245,240,.78);
  }
  .footer-col h3{
    color:#F7F5F0;
    font-family:var(--sans);
    font-size:14px;
    font-weight:600;
    margin-bottom:16px;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:12px;}
  .footer-col a,.footer-col p{font-size:14px;line-height:1.7;color:rgba(247,245,240,.7);transition:color var(--ease);}
  .footer-col a:hover{color:#F7F5F0;}
  .footer-bottom{
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid rgba(247,245,240,.18);
    display:flex;flex-direction:column;gap:8px;
    font-size:13px;color:rgba(247,245,240,.6);
  }
  @media(min-width:768px){
    .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
  }

  /* ---------- Drawer ---------- */
  .drawer{
    position:fixed;inset:0;z-index:60;
    background:rgba(23,48,43,.46);
    opacity:0;visibility:hidden;
    transition:opacity var(--ease),visibility var(--ease);
  }
  .drawer.is-open{opacity:1;visibility:visible;}
  .drawer-panel{
    position:absolute;top:0;right:0;
    width:min(88vw,380px);
    height:100%;
    background:var(--paper);
    border-left:1px solid var(--line);
    padding:18px 22px 32px;
    overflow-y:auto;
    transform:translateX(14px);
    transition:transform var(--ease);
  }
  .drawer.is-open .drawer-panel{transform:none;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line);}
  .drawer-search{margin-top:20px;}
  .drawer-search input{
    width:100%;height:44px;padding:0 12px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    font-size:15px;
  }
  .drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px rgba(200,122,74,.35);}
  .drawer-nav{display:flex;flex-direction:column;margin-top:22px;}
  .drawer-nav a{
    font-size:17px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
    color:var(--text);
    transition:color var(--ease),padding-left var(--ease);
  }
  .drawer-nav a:hover{color:var(--brand);padding-left:6px;}
  .drawer-nav a.is-active{color:var(--brand);font-weight:600;}
  .drawer-cta{margin-top:24px;width:100%;}
  .drawer-foot{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.8;}

  /* ---------- Reveal ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms cubic-bezier(.22,.61,.36,1),transform 520ms cubic-bezier(.22,.61,.36,1);}
  .reveal.is-in{opacity:1;transform:none;}
  @media(prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .reveal{opacity:1;transform:none;transition:none;}
    *{transition-duration:1ms !important;}
  }

  @media(max-width:1023px){
    .nav-menu,.nav-divider,.search-panel{display:none;}
    .menu-btn{display:inline-flex;}
  }
  @media(max-width:639px){
    .nav{height:56px;}
    .nav-cta{display:none;}
    .nav-left{gap:0;}
  }