/* roulang page: index */
:root{
  --c-ink:#1C2B26;
  --c-ink-2:#16211D;
  --c-tea:#7B4B2A;
  --c-accent:#C86B3C;
  --c-accent-d:#A9532B;
  --c-celadon:#5E8C7A;
  --c-paper:#F6F1E8;
  --c-surface:#FFFDF8;
  --c-line:#E3D9C9;
  --c-text:#23201C;
  --c-muted:#6F665C;
  --c-white:#FFFFFF;
  --c-error:#B4482F;
  --c-hover:#FBF7EF;
  --shadow-1:0 1px 2px rgba(28,43,38,.06),0 8px 24px rgba(28,43,38,.06);
  --shadow-2:0 2px 4px rgba(28,43,38,.08),0 16px 40px rgba(28,43,38,.10);
  --r-s:6px;--r-m:10px;--r-l:14px;--r-xl:20px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-paper);color:var(--c-text);font-family:var(--font-sans);font-size:16px;line-height:1.85;letter-spacing:.01em;font-variant-numeric:tabular-nums}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;line-height:1.25;letter-spacing:.02em;color:var(--c-ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
::selection{background:rgba(200,107,60,.22)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--paper{background:var(--c-paper)}
.section--tint{background:#F2EADC}
.section--ink{background:var(--c-ink);color:#EFE7DA}
.section--ink h2,.section--ink h3{color:#F3EDE1}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,253,248,.95);border-bottom:1px solid var(--c-line);backdrop-filter:blur(10px);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.seal{width:24px;height:24px;flex:none;display:grid;place-items:center;background:var(--c-tea);color:#F7F1E6;border-radius:3px;font-family:var(--font-serif);font-size:9px;line-height:1;letter-spacing:0;text-align:center}
.seal-xs{width:20px;height:20px;font-size:8px}
.seal-lg{width:44px;height:44px;font-size:14px;border-radius:6px}
.brand-text strong{display:block;font-family:var(--font-serif);font-size:16px;font-weight:700;line-height:1.25;color:var(--c-ink);letter-spacing:.02em}
.brand-text small{display:block;font-size:11px;line-height:1.3;color:var(--c-muted);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.main-nav a{position:relative;font-size:14.5px;color:#4B453D;padding:6px 0;transition:color .16s ease;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;color:var(--c-muted);transition:all .16s ease}
.icon-btn:hover{background:var(--c-hover);color:var(--c-ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;transition:all .16s ease;text-align:center}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(200,107,60,.06)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.icon-btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);place-items:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ============ shared blocks ============ */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--c-tea);font-weight:600;margin-bottom:14px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(24px,3vw,34px)}
.sec-sub{color:var(--c-muted);font-size:14.5px;margin-top:12px;max-width:680px;line-height:1.8}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-accent);white-space:nowrap;transition:color .16s ease}
.sec-link .arrow{transition:transform .16s ease}
.sec-link:hover{color:var(--c-accent-d)}
.sec-link:hover .arrow{transform:translateX(4px)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-block;font-size:12px;line-height:1.6;padding:2px 8px;border-radius:6px;border:1px solid var(--c-line);color:var(--c-muted);background:#fff}
.badge-tea{background:rgba(123,75,42,.08);border-color:rgba(123,75,42,.24);color:var(--c-tea)}
.badge-celadon{background:rgba(94,140,122,.10);border-color:rgba(94,140,122,.30);color:#41695A}
.badge-accent{background:rgba(200,107,60,.10);border-color:rgba(200,107,60,.30);color:var(--c-accent-d)}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;overflow:hidden}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:rgba(200,107,60,.45)}
.img-wrap{overflow:hidden;border-radius:var(--r-m)}
.img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .img-wrap img,.feature-card:hover img{transform:scale(1.03)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:14px;font-weight:600}
.link-arrow .arrow{transition:transform .16s ease}
.link-arrow:hover .arrow{transform:translateX(4px)}

/* ============ hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;background:var(--c-paper)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 76% 20%,rgba(123,75,42,.055),transparent 58%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;min-height:540px}
.hero h1{font-size:clamp(32px,4.6vw,52px);line-height:1.22;letter-spacing:.02em}
.hero h1 span{display:block}
.hero h1 .line2{font-size:.7em;color:var(--c-tea);margin-top:10px;letter-spacing:.02em}
.hero-sub{margin-top:20px;font-size:17px;color:#4C463E;max-width:520px;line-height:1.85}
.search-bar{display:flex;align-items:center;gap:6px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;padding:6px 6px 6px 16px;max-width:540px;margin-top:28px;box-shadow:var(--shadow-1);transition:border-color .16s ease}
.search-bar:focus-within{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,107,60,.15)}
.search-bar svg{flex:none;color:var(--c-muted)}
.search-bar input{flex:1;min-width:0;border:0;background:transparent;height:44px;padding:0 10px;font-size:15px;outline:none}
.search-bar input::placeholder{color:#A39A8D}
.search-bar .btn{min-height:40px;padding:0 18px;font-size:14px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;align-items:center}
.hero-chips>span{font-size:12.5px;color:var(--c-muted)}
.chip{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;border-radius:999px;border:1px solid var(--c-line);font-size:12.5px;color:#5A534A;background:var(--c-surface);transition:all .16s ease}
.chip:hover{border-color:var(--c-accent);color:var(--c-accent-d)}
.hero-stats{display:grid;grid-template-columns:repeat(3,auto);gap:36px;margin-top:34px;justify-content:flex-start}
.hero-stats b{display:block;font-family:var(--font-serif);font-size:26px;line-height:1.2;color:var(--c-ink)}
.hero-stats span{font-size:12.5px;color:var(--c-muted)}
.hero-figure{position:relative}
.hero-figure>img{width:100%;aspect-ratio:4/5;object-fit:cover;border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:8px 8px 0 rgba(123,75,42,.10)}
.version-card{position:absolute;right:-12px;bottom:-18px;width:260px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);box-shadow:var(--shadow-2);padding:16px 18px}
.version-card .vc-label{display:block;font-size:11.5px;letter-spacing:.18em;color:var(--c-tea);font-weight:600;margin-bottom:10px}
.version-card li{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;padding:6px 0;border-top:1px dashed var(--c-line);color:var(--c-muted)}
.version-card li:first-child{border-top:0}
.version-card li b{color:var(--c-ink);font-weight:600}
.version-card li b.ok{color:#41695A}

/* ============ quickbar ============ */
.quickbar{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.quickbar-grid{display:grid;grid-template-columns:repeat(5,1fr)}
.quick-item{display:flex;gap:12px;align-items:flex-start;padding:24px 18px;border-left:1px solid var(--c-line);transition:background .16s ease}
.quick-item:first-child{border-left:0}
.quick-item:hover{background:var(--c-hover)}
.quick-item svg{flex:none;color:var(--c-accent);margin-top:3px}
.quick-item h3{font-size:14px;font-family:var(--font-sans);font-weight:600;color:var(--c-ink);letter-spacing:0}
.quick-item p{font-size:12px;color:var(--c-muted);line-height:1.6;margin-top:2px}

/* ============ S3 picks ============ */
.pick-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px}
.feature-card{display:grid;grid-template-columns:40% 1fr;align-items:stretch}
.feature-card .thumb{overflow:hidden;background:#EDE4D6}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.feature-body{padding:24px 26px;display:flex;flex-direction:column;gap:12px}
.feature-body h3{font-size:21px;line-height:1.4}
.feature-body h3 a:hover{color:var(--c-accent-d)}
.feature-body p{font-size:14px;color:var(--c-muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta-row{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--c-muted)}
.side-card{display:flex;flex-direction:column}
.side-card .thumb{overflow:hidden}
.side-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.side-body{padding:20px 22px 22px}
.side-body h3{font-size:18px;line-height:1.45;margin:10px 0 8px}
.side-body h3 a:hover{color:var(--c-accent-d)}
.side-body p{font-size:13.5px;color:var(--c-muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pick-rows{margin-top:26px;border-top:1px solid var(--c-line)}
.pick-row{display:flex;align-items:center;gap:20px;padding:18px 4px;border-bottom:1px solid var(--c-line);transition:background .16s ease}
.pick-row:hover{background:var(--c-hover)}
.pick-row:hover .row-title{color:var(--c-accent-d)}
.row-ico{width:72px;height:72px;flex:none;border-radius:var(--r-m);background:rgba(123,75,42,.10);display:grid;place-items:center;font-family:var(--font-serif);font-size:24px;color:var(--c-tea)}
.row-main{flex:1;min-width:0}
.row-title{font-size:16px;font-weight:600;color:var(--c-ink);transition:color .16s ease;display:block;line-height:1.5}
.row-desc{font-size:13px;color:var(--c-muted);margin-top:4px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.row-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;font-size:12px;color:var(--c-muted)}
.row-go{flex:none;font-size:13px;color:var(--c-accent);font-weight:600}

/* ============ S4 forum dark ============ */
.forum-grid{display:grid;grid-template-columns:8fr 4fr;gap:48px}
.forum-list{border-top:1px solid rgba(246,241,232,.16)}
.forum-item{display:flex;gap:18px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(246,241,232,.14);transition:background .16s ease}
.forum-item:hover{background:rgba(246,241,232,.04)}
.forum-num{font-family:var(--font-serif);font-size:22px;line-height:1.3;color:#5E8C7A;width:40px;flex:none;letter-spacing:.04em}
.forum-main{flex:1;min-width:0}
.forum-main h3{font-family:var(--font-sans);font-size:16px;font-weight:600;letter-spacing:0;line-height:1.5}
.forum-main h3 a{color:#F3EDE1;transition:color .16s ease}
.forum-main h3 a:hover{color:#8FBFA9}
.forum-meta{display:flex;flex-wrap:wrap;gap:10px 14px;margin-top:8px;font-size:12px;color:rgba(243,237,225,.62);align-items:center}
.forum-reply{flex:none;font-size:12px;color:rgba(243,237,225,.62);text-align:right;min-width:56px}
.forum-aside{display:flex;flex-direction:column;gap:22px}
.aside-panel{border:1px solid rgba(246,241,232,.18);border-radius:var(--r-l);padding:22px 22px 18px;background:rgba(246,241,232,.04)}
.aside-panel h3{font-family:var(--font-sans);font-size:14px;letter-spacing:.06em;color:#8FBFA9;font-weight:600;margin-bottom:14px}
.aside-panel li{padding:10px 0;border-top:1px dashed rgba(246,241,232,.16);font-size:13.5px;line-height:1.7;color:rgba(243,237,225,.86)}
.aside-panel li:first-child{border-top:0;padding-top:0}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid rgba(246,241,232,.24);color:rgba(243,237,225,.8);transition:all .16s ease}
.tag-cloud span:hover{border-color:#8FBFA9;color:#8FBFA9}

/* ============ S5 voices ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.voice-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);padding:26px 24px;transition:all .16s ease}
.voice-card:nth-child(2){margin-top:24px}
.voice-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(200,107,60,.45)}
.voice-top{display:flex;align-items:center;gap:12px}
.avatar{width:32px;height:32px;border-radius:50%;flex:none;display:grid;place-items:center;background:rgba(94,140,122,.16);color:#41695A;font-size:13px;font-family:var(--font-serif)}
.voice-name{font-size:14px;font-weight:600;color:var(--c-ink);line-height:1.4}
.voice-role{font-size:12px;color:var(--c-muted)}
.voice-quote{font-size:14px;line-height:1.85;color:#4B453D;margin:16px 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.voice-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--c-line);padding-top:14px;font-size:12.5px;color:var(--c-muted)}

/* ============ S6 app ============ */
.app-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px}
.app-left{position:sticky;top:96px;align-self:start}
.app-left h2{margin-bottom:16px}
.app-left p{font-size:14.5px;color:var(--c-muted);line-height:1.9}
.app-chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0}
.app-chips span{font-size:12px;padding:4px 12px;border-radius:999px;background:rgba(123,75,42,.08);border:1px solid rgba(123,75,42,.22);color:var(--c-tea)}
.app-row{display:flex;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.app-row:first-child{border-top:1px solid var(--c-line)}
.app-ico{width:56px;height:56px;flex:none;border-radius:12px;background:rgba(123,75,42,.10);display:grid;place-items:center;font-family:var(--font-serif);font-size:20px;color:var(--c-tea)}
.app-main{flex:1;min-width:0}
.app-main h3{font-size:16px;font-family:var(--font-sans);font-weight:600;letter-spacing:0;line-height:1.5}
.app-main h3 a:hover{color:var(--c-accent-d)}
.app-meta{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:6px;font-size:12.5px;color:var(--c-muted);align-items:center}
.app-status{flex:none}
.safety-note{display:flex;gap:10px;align-items:flex-start;margin-top:20px;font-size:13px;color:#5A534A;line-height:1.7;background:rgba(200,107,60,.07);border:1px solid rgba(200,107,60,.22);border-radius:var(--r-m);padding:12px 16px}

/* ============ S7 check ============ */
.check-band{background:#F1E8DA}
.check-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px}
.check-step{padding:0 26px;border-left:1px solid rgba(123,75,42,.18);position:relative}
.check-step:first-child{border-left:0;padding-left:0}
.check-num{font-family:var(--font-serif);font-size:34px;color:rgba(123,75,42,.34);line-height:1.1;letter-spacing:.04em}
.check-step h3{font-size:16px;margin:10px 0 8px;font-family:var(--font-sans);font-weight:600;letter-spacing:0;color:var(--c-ink)}
.check-step p{font-size:13.5px;color:var(--c-muted);line-height:1.75;min-height:48px}

/* ============ S8 categories ============ */
.tile-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tile{display:flex;flex-direction:column;justify-content:space-between;gap:22px;padding:22px 20px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);min-height:118px;transition:all .16s ease}
.tile:hover{border-color:var(--c-accent);box-shadow:var(--shadow-1)}
.tile h3{font-family:var(--font-sans);font-size:15px;font-weight:600;letter-spacing:0;color:var(--c-ink);line-height:1.45}
.tile-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--c-muted)}
.tile .arrow{color:var(--c-accent);transition:transform .16s ease}
.tile:hover .arrow{transform:translateX(4px)}

/* ============ S9 steps ============ */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.step-item{padding:0 32px;border-left:1px solid var(--c-line)}
.step-item:first-child{border-left:0;padding-left:0}
.step-num{font-family:var(--font-serif);font-size:30px;color:var(--c-accent);line-height:1.1}
.step-item h3{font-size:18px;margin:12px 0 10px}
.step-item p{font-size:14px;color:var(--c-muted);line-height:1.85;min-height:56px}

/* ============ S10 safety ============ */
.safety-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:start}
.tick-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:14.5px;line-height:1.8;color:#4B453D}
.tick-list li::before{content:"";flex:none;width:16px;height:16px;margin-top:5px;border-radius:4px;background:rgba(94,140,122,.18);border:1px solid rgba(94,140,122,.42)}
.panel-accent{background:#F1E7D9;border:1px solid rgba(200,107,60,.22);border-radius:var(--r-l);padding:28px 26px}
.panel-accent h3{font-size:18px;margin-bottom:16px}
.panel-accent li{display:flex;gap:10px;padding:12px 0;border-top:1px dashed rgba(123,75,42,.24);font-size:14px;line-height:1.75;color:#4B453D}
.panel-accent li:first-child{border-top:0;padding-top:0}
.panel-accent li b{color:var(--c-accent-d);font-weight:600;flex:none}
.disclaim{font-size:12px;color:var(--c-muted);margin-top:18px;line-height:1.7}

/* ============ S11 topics ============ */
.topic-rail{display:flex;gap:20px;overflow-x:auto;padding:4px 0 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.topic-rail::-webkit-scrollbar{height:6px}
.topic-rail::-webkit-scrollbar-thumb{background:rgba(123,75,42,.22);border-radius:99px}
.topic-card{flex:0 0 280px;scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--shadow-1);transition:all .16s ease}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(200,107,60,.45)}
.topic-card img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease}
.topic-card:hover img{transform:scale(1.03)}
.topic-body{padding:18px 20px 20px}
.topic-tag{font-size:11.5px;letter-spacing:.14em;color:var(--c-tea);font-weight:600}
.topic-body h3{font-size:17px;margin:8px 0 10px;line-height:1.45}
.topic-foot{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--c-muted)}

/* ============ S12 rank ============ */
.rank-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.rank-row{display:flex;gap:16px;align-items:baseline;padding:16px 6px;border-bottom:1px solid var(--c-line);transition:background .16s ease}
.rank-row:hover{background:var(--c-hover)}
.rank-num{font-family:var(--font-serif);font-size:28px;color:var(--c-accent);line-height:1;width:40px;flex:none}
.rank-main{min-width:0}
.rank-main h3{font-family:var(--font-sans);font-size:15px;font-weight:600;letter-spacing:0;line-height:1.5}
.rank-main h3 a:hover{color:var(--c-accent-d)}
.rank-meta{font-size:12px;color:var(--c-muted);margin-top:4px}

/* ============ S13 latest ============ */
.latest-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.latest-item{display:flex;gap:16px;padding:18px 6px;border-bottom:1px solid var(--c-line);transition:background .16s ease}
.latest-item:hover{background:var(--c-hover)}
.latest-thumb{width:120px;height:80px;flex:none;border-radius:var(--r-s);overflow:hidden;background:rgba(123,75,42,.12);display:grid;place-items:center;font-family:var(--font-serif);font-size:26px;color:var(--c-tea)}
.latest-thumb img{width:100%;height:100%;object-fit:cover}
.latest-main{min-width:0}
.latest-main h3{font-family:var(--font-sans);font-size:15.5px;font-weight:600;letter-spacing:0;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-main h3 a:hover{color:var(--c-accent-d)}
.latest-main p{font-size:13px;color:var(--c-muted);line-height:1.75;margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-meta{display:flex;flex-wrap:wrap;gap:8px 12px;margin-top:8px;font-size:12px;color:var(--c-muted)}
.empty-state{grid-column:1/-1;min-height:240px;border:1px dashed var(--c-line);border-radius:var(--r-l);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:32px;text-align:center;background:rgba(255,253,248,.6)}
.empty-state p{font-size:15px;font-weight:600;color:var(--c-ink)}
.empty-state span{font-size:13px;color:var(--c-muted)}

/* ============ S14 timeline ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--c-line)}
.tl-item{position:relative;display:flex;gap:20px;padding:14px 0;align-items:flex-start}
.tl-item::before{content:"";position:absolute;left:-28px;top:24px;width:8px;height:8px;border-radius:50%;background:var(--c-accent);transform:translateX(1px)}
.tl-date{flex:none;width:88px;font-size:12px;padding:3px 10px;border-radius:999px;background:rgba(123,75,42,.10);color:var(--c-tea);text-align:center}
.tl-main h3{font-family:var(--font-sans);font-size:15px;font-weight:600;letter-spacing:0;line-height:1.5}
.tl-main h3 a:hover{color:var(--c-accent-d)}
.tl-main p{font-size:13px;color:var(--c-muted);margin-top:4px;line-height:1.75}

/* ============ S15 faq ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;align-items:start}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);margin-bottom:14px;transition:all .16s ease;overflow:hidden}
.faq-item[open]{border-left:3px solid var(--c-accent);background:var(--c-hover)}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 20px;font-size:15px;font-weight:600;color:var(--c-ink);display:flex;justify-content:space-between;align-items:center;gap:16px;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{position:relative;width:20px;height:20px;flex:none;transition:transform .18s ease}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--c-accent);border-radius:1px}
.faq-plus::before{left:0;right:0;top:9px;height:2px}
.faq-plus::after{top:0;bottom:0;left:9px;width:2px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:14px;line-height:1.85;color:var(--c-muted)}
.faq-body a{color:var(--c-accent);border-bottom:1px solid rgba(200,107,60,.4)}

/* ============ S16 submit ============ */
.submit-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.submit-left p{font-size:14.5px;color:var(--c-muted);line-height:1.9;margin-top:14px}
.type-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.type-chips span{font-size:12.5px;padding:6px 14px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);color:#5A534A}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field label .opt{font-weight:400;color:var(--c-muted);font-size:12px}
.field input,.field select,.field textarea{width:100%;min-height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;padding:10px 14px;font-size:14px;transition:border-color .16s ease,box-shadow .16s ease}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,107,60,.15)}
.field .err{font-size:12px;color:var(--c-error);margin-top:6px;display:none}
.form-note{font-size:12px;color:var(--c-muted);margin-top:14px;line-height:1.7}
.form-ok{display:none;background:rgba(94,140,122,.12);border:1px solid rgba(94,140,122,.34);color:#3E6455;border-radius:10px;padding:12px 16px;font-size:13.5px;margin-bottom:18px}

/* ============ footer ============ */
.site-footer{background:var(--c-ink-2);color:#DED5C6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:44px}
.brand--footer .brand-text strong{color:#F3EDE1}
.brand--footer .brand-text small{color:rgba(222,213,198,.65)}
.site-footer h4{font-family:var(--font-sans);font-size:13px;letter-spacing:.14em;color:#F3EDE1;font-weight:600;margin-bottom:16px}
.site-footer li{padding:6px 0;font-size:13.5px}
.site-footer li a{color:rgba(222,213,198,.78);transition:color .16s ease}
.site-footer li a:hover{color:#F3EDE1}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(222,213,198,.7);margin:16px 0 18px;max-width:320px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{font-size:11.5px;padding:3px 10px;border-radius:999px;border:1px solid rgba(222,213,198,.26);color:rgba(222,213,198,.72)}
.footer-bar{border-top:1px solid rgba(222,213,198,.16);padding:18px 24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:rgba(222,213,198,.6)}

/* ============ responsive ============ */
@media (max-width:1199px){
  .container{max-width:960px}
  .hero-grid{gap:40px}
  .forum-grid{gap:32px}
  .app-grid{gap:36px}
  .submit-grid{gap:36px}
  .tile-grid{grid-template-columns:repeat(4,1fr)}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .header-inner{height:60px}
  .brand-text small{display:none}
  .main-nav{position:fixed;top:60px;left:0;right:0;bottom:0;background:var(--c-paper);flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px 24px 40px;overflow:auto;transform:translateY(-10px);opacity:0;pointer-events:none;transition:transform .2s ease,opacity .2s ease;z-index:70}
  .main-nav.open{transform:none;opacity:1;pointer-events:auto}
  .main-nav a{padding:14px 12px;border-bottom:1px solid var(--c-line);border-left:3px solid transparent;font-size:16px}
  .main-nav a::after{display:none}
  .main-nav a.active{border-left-color:var(--c-accent);background:var(--c-hover);color:var(--c-ink)}
  .header-actions .btn{display:none}
  .menu-toggle{display:grid}
  .hero{padding:44px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:44px;min-height:0}
  .hero-figure{max-width:460px}
  .version-card{position:static;width:100%;margin-top:18px;box-shadow:var(--shadow-1)}
  .hero-figure>img{box-shadow:6px 6px 0 rgba(123,75,42,.10)}
  .quickbar-grid{grid-template-columns:repeat(2,1fr)}
  .quick-item{border-left:0;border-bottom:1px solid var(--c-line);padding:18px 16px}
  .quick-item:nth-child(odd){border-right:1px solid var(--c-line)}
  .pick-grid{grid-template-columns:1fr}
  .feature-card{grid-template-columns:1fr}
  .feature-card .thumb img{aspect-ratio:16/10;height:auto}
  .forum-grid{grid-template-columns:1fr}
  .voice-grid{display:flex;overflow-x:auto;gap:18px;padding-bottom:12px;scroll-snap-type:x mandatory}
  .voice-card{flex:0 0 78%;scroll-snap-align:start}
  .voice-card:nth-child(2){margin-top:0}
  .app-grid{grid-template-columns:1fr}
  .app-left{position:static}
  .check-grid{grid-template-columns:1fr 1fr;gap:26px 0}
  .check-step{border-left:0;padding:0}
  .check-step p{min-height:0}
  .tile-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:1fr;gap:28px}
  .step-item{border-left:0;padding:0 0 0 16px;border-left:2px solid var(--c-line)}
  .step-item:first-child{padding-left:16px}
  .step-item p{min-height:0}
  .safety-grid{grid-template-columns:1fr;gap:32px}
  .rank-grid{grid-template-columns:1fr;gap:0}
  .latest-grid{grid-template-columns:1fr;gap:0}
  .faq-grid{grid-template-columns:1fr}
  .submit-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  body{font-size:15px}
  .section{padding:52px 0}
  .container{padding:0 18px}
  .hero h1{font-size:30px}
  .hero h1 .line2{font-size:15px}
  .hero-sub{font-size:15px}
  .hero-stats{gap:24px}
  .hero-stats b{font-size:22px}
  .search-bar{flex-wrap:wrap;padding:12px}
  .search-bar svg{display:none}
  .search-bar input{height:40px;padding:0}
  .search-bar .btn{width:100%}
  .feature-body{padding:20px}
  .feature-body h3{font-size:19px}
  .pick-row{flex-wrap:wrap;gap:14px}
  .row-ico{width:56px;height:56px;font-size:20px}
  .row-go{width:100%;text-align:right}
  .forum-item{gap:12px}
  .forum-num{font-size:18px;width:30px}
  .forum-reply{display:none}
  .latest-thumb{width:96px;height:64px}
  .tl-item{flex-direction:column;gap:6px}
  .tl-date{width:auto;align-self:flex-start}
  .timeline{padding-left:22px}
  .tl-item::before{left:-22px;top:20px}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:20px}
  .faq-item summary{font-size:14.5px;padding:16px}
  .hero-figure>img{aspect-ratio:4/5}
}
@media (max-width:560px){
  .hero-stats{grid-template-columns:1fr 1fr;display:grid;gap:18px 24px}
  .tile-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .quickbar-grid{grid-template-columns:1fr}
  .quick-item:nth-child(odd){border-right:0}
  .voice-card{flex:0 0 88%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn{width:100%}
  .sec-head{gap:14px}
  .sec-link{font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-ink:#1C2B26;
  --c-ink-2:#16211D;
  --c-tea:#7B4B2A;
  --c-accent:#C86B3C;
  --c-accent-d:#A9532B;
  --c-celadon:#5E8C7A;
  --c-paper:#F6F1E8;
  --c-surface:#FFFDF8;
  --c-line:#E3D9C9;
  --c-text:#23201C;
  --c-muted:#6F665C;
  --c-white:#FFFFFF;
  --c-error:#B4482F;
  --c-hover:#FBF7EF;
  --shadow-1:0 1px 2px rgba(28,43,38,.06),0 8px 24px rgba(28,43,38,.06);
  --shadow-2:0 2px 4px rgba(28,43,38,.08),0 16px 40px rgba(28,43,38,.10);
  --r-s:6px;--r-m:10px;--r-l:14px;--r-xl:20px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-paper);color:var(--c-text);font-family:var(--font-sans);font-size:16px;line-height:1.85;letter-spacing:.01em;font-variant-numeric:tabular-nums}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--paper{background:var(--c-paper)}
.section--tint{background:#F2EADC}
.section--ink{background:var(--c-ink);color:#EFE7DA}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-family:var(--font-serif);font-size:clamp(24px,3vw,34px);font-weight:600;letter-spacing:.02em;color:var(--c-ink);line-height:1.3}
.sec-head .sec-desc{margin-top:10px;font-size:14.5px;color:var(--c-muted);max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--c-tea);font-weight:600;margin-bottom:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:14px;font-weight:600;transition:color .16s ease}
.link-arrow .arrow{transition:transform .16s ease}
.link-arrow:hover{color:var(--c-accent-d)}
.link-arrow:hover .arrow{transform:translateX(4px)}
.badge{display:inline-block;font-size:12px;line-height:1.6;padding:2px 8px;border-radius:6px;border:1px solid var(--c-line);color:var(--c-muted);background:#fff}
.badge-tea{background:rgba(123,75,42,.08);border-color:rgba(123,75,42,.24);color:var(--c-tea)}
.badge-celadon{background:rgba(94,140,122,.10);border-color:rgba(94,140,122,.30);color:#41695A}
.badge-accent{background:rgba(200,107,60,.10);border-color:rgba(200,107,60,.30);color:var(--c-accent-d)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}
/* header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,253,248,.95);border-bottom:1px solid var(--c-line);backdrop-filter:blur(10px);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.seal{width:34px;height:34px;border-radius:6px;background:var(--c-tea);color:#fff;display:grid;place-items:center;font-family:var(--font-serif);font-size:12px;font-weight:700;letter-spacing:.06em;line-height:1.05;text-align:center;padding:2px}
.brand-text strong{display:block;font-family:var(--font-serif);font-size:16px;font-weight:700;line-height:1.25;color:var(--c-ink);letter-spacing:.02em}
.brand-text small{display:block;font-size:11px;line-height:1.3;color:var(--c-muted);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.main-nav a{position:relative;font-size:14.5px;color:#4B453D;padding:6px 0;transition:color .16s ease;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;color:var(--c-muted);transition:all .16s ease}
.icon-btn:hover{background:var(--c-hover);color:var(--c-ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;transition:all .16s ease;text-align:center}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-d);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(200,107,60,.06)}
.btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.icon-btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);place-items:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
/* breadcrumb */
.crumb-bar{padding:22px 0 6px;background:var(--c-paper)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;font-size:13px;color:var(--c-muted)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:#BCB0A0}
.crumbs a{color:var(--c-muted);transition:color .16s ease}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .current{color:var(--c-accent);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.column-tag{display:inline-flex;align-items:center;font-size:12px;letter-spacing:.14em;color:var(--c-tea);font-weight:600;margin-top:14px}
/* article head */
.article-head{padding:8px 0 56px;background:var(--c-paper)}
.article-head h1{font-family:var(--font-serif);font-size:clamp(30px,4vw,44px);line-height:1.3;font-weight:600;letter-spacing:.02em;color:var(--c-ink);max-width:900px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:13px;color:var(--c-muted)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C6B9A7}
.copy-btn{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 14px;border:1px solid var(--c-line);border-radius:8px;background:var(--c-surface);font-size:13px;color:var(--c-muted);transition:all .16s ease}
.copy-btn:hover{border-color:var(--c-accent);color:var(--c-accent-d);background:rgba(200,107,60,.06)}
.cover-figure{margin:34px 0 0;max-width:1000px}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:16px;border:1px solid var(--c-line);background:#E9DFCE}
.cover-figure figcaption{margin-top:10px;font-size:12px;color:var(--c-muted)}
/* key points */
.keypoints{max-width:900px;background:#F7EFE0;border-left:3px solid var(--c-accent);border-radius:0 var(--r-l) var(--r-l) 0;padding:26px 30px;box-shadow:var(--shadow-1)}
.keypoints h2{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--c-ink);margin-bottom:14px}
.keypoints ul{list-style:none;padding:0;display:grid;gap:10px}
.keypoints li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:#3E3A33}
.keypoints li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-accent);opacity:.75}
/* body + toc */
.read-grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start}
.prose{max-width:760px;font-size:16px;line-height:1.95;letter-spacing:.01em;color:#2B2721}
.prose p{margin:0 0 18px}
.prose h2{font-family:var(--font-serif);font-size:24px;font-weight:600;line-height:1.4;margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-accent);color:var(--c-ink)}
.prose h3{font-family:var(--font-serif);font-size:19px;font-weight:600;line-height:1.5;margin:28px 0 12px;color:var(--c-ink)}
.prose h4{font-size:16px;font-weight:600;margin:22px 0 10px;color:var(--c-ink)}
.prose blockquote{margin:24px 0;background:var(--c-paper);border-left:3px solid var(--c-accent);border-radius:0 var(--r-m) var(--r-m) 0;padding:16px 20px;color:#3E3A33}
.prose blockquote p:last-child{margin-bottom:0}
.prose ul,.prose ol{padding-left:22px;margin:0 0 18px}
.prose li{margin-bottom:8px}
.prose ul li::marker{color:var(--c-accent)}
.prose ol li::marker{color:var(--c-accent);font-weight:600}
.prose a{color:var(--c-accent);border-bottom:1px solid rgba(200,107,60,.45);transition:color .16s ease,border-color .16s ease}
.prose a:hover{color:var(--c-accent-d);border-color:var(--c-accent-d)}
.prose strong{font-weight:600;color:var(--c-ink)}
.prose em{font-style:normal;color:var(--c-tea)}
.prose img{width:100%;height:auto;border-radius:14px;border:1px solid var(--c-line);margin:22px 0;background:#E9DFCE}
.prose figure{margin:24px 0}
.prose figcaption{font-size:12px;color:var(--c-muted);margin-top:8px;text-align:center}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:34px 0}
.prose table{width:100%;border-collapse:collapse;font-size:14.5px;margin:20px 0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden}
.prose th,.prose td{padding:10px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.prose th{background:var(--c-hover);font-weight:600;color:var(--c-ink)}
.prose tr:last-child td{border-bottom:0}
.toc{position:sticky;top:96px;border:1px solid var(--c-line);border-radius:var(--r-l);background:var(--c-surface);padding:20px 22px;box-shadow:var(--shadow-1)}
.toc h2{font-family:var(--font-serif);font-size:15px;font-weight:600;letter-spacing:.06em;color:var(--c-ink);margin-bottom:14px}
.toc ol{list-style:none;padding:0;counter-reset:toc;display:grid;gap:2px}
.toc li a{display:block;padding:7px 10px;font-size:13.5px;line-height:1.6;color:#4B453D;border-left:2px solid transparent;border-radius:0 6px 6px 0;transition:all .16s ease}
.toc li a:hover{background:var(--c-hover);color:var(--c-ink)}
.toc li a.active{border-left-color:var(--c-accent);color:var(--c-accent-d);background:var(--c-hover);font-weight:600}
.toc-mobile{display:none;border:1px solid var(--c-line);border-radius:var(--r-m);background:var(--c-surface);padding:14px 18px;margin-bottom:26px}
.toc-mobile summary{font-size:14px;font-weight:600;color:var(--c-ink);cursor:pointer;list-style:none}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile ol{list-style:none;padding:12px 0 0;display:grid;gap:6px}
.toc-mobile ol a{font-size:13.5px;color:#4B453D}
/* empty state */
.empty-state{max-width:760px;border:1px dashed var(--c-line);border-radius:var(--r-l);padding:48px 28px;text-align:center;background:var(--c-surface)}
.empty-state .seal{margin:0 auto 14px;width:40px;height:40px}
.empty-state h3{font-family:var(--font-serif);font-size:18px;color:var(--c-ink);margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--c-muted);margin-bottom:16px}
/* info card */
.info-card{max-width:900px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);overflow:hidden}
.info-card h2{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--c-ink);padding:22px 26px;border-bottom:1px solid var(--c-line);background:var(--c-hover)}
.info-rows{display:grid;grid-template-columns:1fr 1fr}
.info-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 26px;border-bottom:1px solid var(--c-line);font-size:14px}
.info-row:nth-last-child(-n+2){border-bottom:0}
.info-row .k{color:var(--c-muted);flex:none}
.info-row .v{color:var(--c-ink);font-weight:600;text-align:right;word-break:break-all}
.info-foot{padding:16px 26px;border-top:1px solid var(--c-line);background:var(--c-hover);font-size:13.5px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:14px;align-items:center}
/* notice panel */
.notice{max-width:900px;background:#F7EFE0;border:1px solid rgba(200,107,60,.28);border-radius:var(--r-l);padding:28px 30px}
.notice h2{font-family:var(--font-serif);font-size:20px;font-weight:600;color:var(--c-ink);display:flex;align-items:center;gap:10px;margin-bottom:16px}
.notice h2 .mark{width:24px;height:24px;border-radius:6px;background:var(--c-accent);color:#fff;display:grid;place-items:center;font-size:13px;flex:none}
.notice ul{list-style:none;padding:0;display:grid;gap:10px}
.notice li{position:relative;padding-left:22px;font-size:14.5px;line-height:1.8;color:#3E3A33}
.notice li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-celadon);font-weight:700}
.notice-foot{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.legal{font-size:12px;color:var(--c-muted);margin-top:14px;max-width:900px}
/* related cards */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(200,107,60,.45)}
.rel-card .thumb{overflow:hidden}
.rel-card .thumb img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease}
.rel-card:hover .thumb img{transform:scale(1.03)}
.rel-card .body{padding:18px 20px 20px}
.rel-card h3{font-family:var(--font-serif);font-size:16.5px;line-height:1.5;font-weight:600;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.rel-meta{font-size:12px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
/* pager */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:920px}
.pager a{display:block;border:1px solid var(--c-line);border-radius:var(--r-l);background:var(--c-surface);padding:20px 22px;box-shadow:var(--shadow-1);transition:all .16s ease}
.pager a:hover{border-color:rgba(200,107,60,.45);box-shadow:var(--shadow-2);transform:translateY(-2px)}
.pager .dir{font-size:12px;letter-spacing:.1em;color:var(--c-muted);display:flex;align-items:center;gap:8px;margin-bottom:8px}
.pager .ttl{font-family:var(--font-serif);font-size:15.5px;font-weight:600;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pager .right{text-align:right}
.pager .right .dir{justify-content:flex-end}
.pager-back{margin-top:26px;text-align:center}
/* form */
.feedback{max-width:900px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-1);padding:32px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.field label{font-size:13px;font-weight:600;color:var(--c-ink)}
.field label .opt{font-weight:400;color:var(--c-muted);font-size:12px}
.field input,.field select,.field textarea{width:100%;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;padding:0 14px;font-size:14.5px;color:var(--c-text);transition:border-color .16s ease,box-shadow .16s ease}
.field textarea{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,107,60,.15)}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-hint{font-size:12px;color:var(--c-muted)}
.form-status{display:none;margin-top:16px;font-size:13.5px;padding:10px 14px;border-radius:8px}
.form-status.ok{display:block;background:rgba(94,140,122,.12);border:1px solid rgba(94,140,122,.35);color:#3C6355}
/* footer */
.site-footer{background:var(--c-ink);color:#DCD3C4;padding:68px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:48px}
.brand--footer .brand-text strong{color:#F3EDE1}
.brand--footer .brand-text small{color:#A79C8B}
.brand--footer .seal{background:#8C5A34}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.85;color:#B6AC9C;max-width:34ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{font-size:12px;color:#C9BFB0;border:1px solid rgba(227,217,201,.22);border-radius:6px;padding:2px 8px}
.site-footer h4{font-family:var(--font-serif);font-size:14px;letter-spacing:.08em;color:#F3EDE1;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;display:grid;gap:10px}
.site-footer ul li{font-size:13.5px;color:#B6AC9C;line-height:1.7}
.site-footer ul a{color:#B6AC9C;transition:color .16s ease}
.site-footer ul a:hover{color:#F0C9A8}
.footer-bar{border-top:1px solid rgba(227,217,201,.18);padding:18px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:#9A9080}
.footer-bar .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
/* mobile drawer */
.drawer{position:fixed;inset:0;z-index:120;background:var(--c-paper);transform:translateX(100%);transition:transform .24s ease;display:flex;flex-direction:column;padding:20px 24px 28px;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer nav{display:grid;gap:0}
.drawer nav a{display:flex;align-items:center;min-height:48px;padding:0 12px;border-left:3px solid transparent;border-bottom:1px solid var(--c-line);font-size:15px;color:#3E3A33}
.drawer nav a.active{border-left-color:var(--c-accent);color:var(--c-accent-d);font-weight:600;background:var(--c-hover)}
.drawer .btn{margin-top:24px;width:100%}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);display:grid;place-items:center;font-size:20px;color:var(--c-ink);background:var(--c-surface)}
body.drawer-open{overflow:hidden}
@media (max-width:1199px){
  .read-grid{grid-template-columns:1fr;gap:32px}
  .toc{display:none}
  .toc-mobile{display:block}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .main-nav{display:none}
  .menu-toggle{display:grid}
  .header-actions .btn-primary{display:none}
  .rel-grid{grid-template-columns:1fr 1fr}
  .info-rows{grid-template-columns:1fr}
  .info-row:nth-last-child(-n+2){border-bottom:1px solid var(--c-line)}
  .info-row:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .container{padding:0 18px}
  .header-inner{height:60px}
  .brand-text small{display:none}
  .article-head h1{font-size:28px}
  .article-meta{gap:10px}
  .prose{font-size:15px}
  .prose h2{font-size:21px}
  .prose h3{font-size:17.5px}
  .keypoints{padding:20px 22px}
  .rel-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .pager .right{text-align:left}
  .pager .right .dir{justify-content:flex-start}
  .f-row{grid-template-columns:1fr}
  .feedback{padding:22px}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .cover-figure img{border-radius:12px}
}
@media (max-width:520px){
  .crumbs .current{max-width:26ch}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --c-ink:#1C2B26;
  --c-ink-2:#16211D;
  --c-tea:#7B4B2A;
  --c-accent:#C86B3C;
  --c-accent-d:#A9532B;
  --c-celadon:#5E8C7A;
  --c-paper:#F6F1E8;
  --c-surface:#FFFDF8;
  --c-line:#E3D9C9;
  --c-text:#23201C;
  --c-muted:#6F665C;
  --c-white:#FFFFFF;
  --c-error:#B4482F;
  --c-hover:#FBF7EF;
  --shadow-1:0 1px 2px rgba(28,43,38,.06),0 8px 24px rgba(28,43,38,.06);
  --shadow-2:0 2px 4px rgba(28,43,38,.08),0 16px 40px rgba(28,43,38,.10);
  --r-s:6px;--r-m:10px;--r-l:14px;--r-xl:20px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-paper);color:var(--c-text);font-family:var(--font-sans);font-size:16px;line-height:1.85;letter-spacing:.01em;font-variant-numeric:tabular-nums;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:.02em;line-height:1.28}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--surface{background:var(--c-surface)}
.section--paper{background:var(--c-paper)}
.section--tint{background:#F2EADC}
.section--celadon{background:rgba(94,140,122,.09)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.28}
.section-head .sub{margin-top:10px;font-size:14.5px;color:var(--c-muted);max-width:660px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--c-tea);font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:14px;height:1px;background:var(--c-accent)}
.sec-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:14px;font-weight:600;white-space:nowrap}
.arrow{transition:transform .16s ease}
.sec-link:hover .arrow,.link-arrow:hover .arrow{transform:translateX(4px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:14px;font-weight:600}
/* header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,253,248,.95);border-bottom:1px solid var(--c-line);backdrop-filter:blur(10px);transition:box-shadow .2s ease}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.seal{width:26px;height:26px;display:grid;place-items:center;background:var(--c-tea);color:#F6F1E8;font-size:11px;border-radius:4px;font-family:var(--font-serif);letter-spacing:.02em;line-height:1}
.brand-text strong{display:block;font-family:var(--font-serif);font-size:16px;font-weight:700;line-height:1.25;color:var(--c-ink);letter-spacing:.02em}
.brand-text small{display:block;font-size:11px;line-height:1.3;color:var(--c-muted);letter-spacing:.08em}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.main-nav a{position:relative;font-size:14.5px;color:#4B453D;padding:6px 0;transition:color .16s ease;white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.main-nav a:hover{color:var(--c-ink)}
.main-nav a:hover::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{color:var(--c-ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;color:var(--c-muted);transition:all .16s ease}
.icon-btn:hover{background:var(--c-hover);color:var(--c-ink)}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);place-items:center;background:var(--c-surface)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;transition:all .16s ease;text-align:center}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(200,107,60,.06);color:var(--c-ink)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
/* badges */
.badge{display:inline-block;font-size:12px;line-height:1.6;padding:2px 8px;border-radius:6px;border:1px solid var(--c-line);color:var(--c-muted);background:#fff}
.badge-tea{background:rgba(123,75,42,.08);border-color:rgba(123,75,42,.24);color:var(--c-tea)}
.badge-celadon{background:rgba(94,140,122,.12);border-color:rgba(94,140,122,.34);color:#41695A}
.badge-accent{background:rgba(200,107,60,.10);border-color:rgba(200,107,60,.32);color:var(--c-accent-d)}
/* breadcrumb */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:18px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#BFB5A6}
.crumb .current{color:var(--c-accent);font-weight:600}
/* C1 */
.cat-head{background:var(--c-paper);padding:40px 0 52px;border-bottom:1px solid var(--c-line);position:relative;overflow:hidden}
.cat-head::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 12%,rgba(123,75,42,.06),transparent 56%);pointer-events:none}
.cat-head-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end}
.cat-head h1{font-size:clamp(30px,4vw,44px);line-height:1.22}
.cat-head h1 em{font-style:normal;color:var(--c-tea)}
.cat-lead{margin-top:18px;max-width:760px;font-size:15.5px;line-height:1.95;color:#4C463E}
.cat-stats{display:flex;gap:12px;flex-wrap:wrap}
.stat-chip{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);padding:12px 18px;min-width:104px;text-align:center}
.stat-chip strong{display:block;font-family:var(--font-serif);font-size:22px;line-height:1.2;color:var(--c-tea)}
.stat-chip span{display:block;font-size:12px;color:var(--c-muted);margin-top:4px}
/* C2 */
.filter-bar{position:sticky;top:72px;z-index:60;background:rgba(255,253,248,.97);border-bottom:1px solid var(--c-line);backdrop-filter:blur(8px)}
.filter-inner{display:flex;align-items:center;gap:16px;padding:12px 0;flex-wrap:wrap}
.filter-chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.filter-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;min-height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);font-size:13.5px;color:#4B453D;white-space:nowrap;transition:all .16s ease}
.chip:hover{border-color:rgba(200,107,60,.5);color:var(--c-accent-d)}
.chip.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#F3EDE1;font-weight:600}
.filter-tools{margin-left:auto;display:flex;align-items:center;gap:10px}
.select-mini{min-height:36px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);padding:0 32px 0 14px;font-size:13.5px;color:#4B453D;appearance:none;background-image:linear-gradient(45deg,transparent 50%,#6F665C 50%),linear-gradient(135deg,#6F665C 50%,transparent 50%);background-position:calc(100% - 18px) 16px,calc(100% - 13px) 16px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.view-toggle{display:flex;border:1px solid var(--c-line);border-radius:999px;overflow:hidden;background:var(--c-surface)}
.view-toggle button{width:38px;height:34px;display:grid;place-items:center;color:var(--c-muted);transition:all .16s ease}
.view-toggle button.is-active{background:rgba(200,107,60,.12);color:var(--c-accent-d)}
/* C3 */
.featured-card{display:grid;grid-template-columns:40% 1fr;gap:0;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .16s ease,border-color .16s ease}
.featured-card:hover{box-shadow:var(--shadow-2);border-color:rgba(200,107,60,.45)}
.featured-media{display:block;aspect-ratio:16/10;overflow:hidden;background:#EDE5D7}
.featured-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.featured-card:hover .featured-media img{transform:scale(1.03)}
.featured-body{padding:28px 32px;display:flex;flex-direction:column;gap:14px}
.featured-body h3{font-size:22px;line-height:1.4}
.featured-body h3 a:hover{color:var(--c-accent)}
.featured-body p{font-size:14.5px;color:#4C463E;line-height:1.9}
.featured-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--c-muted)}
.featured-meta span{display:inline-flex;align-items:center;gap:6px}
.featured-meta span::before{content:"";width:4px;height:4px;border-radius:50%;background:#C9BDA9}
.list-stack{margin-top:28px;border-top:1px solid var(--c-line)}
.list-row{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:18px 8px;border-bottom:1px solid var(--c-line);transition:background .16s ease}
.list-row:hover{background:var(--c-hover)}
.list-thumb{width:120px;aspect-ratio:3/2;border-radius:var(--r-s);overflow:hidden;background:#EDE5D7}
.list-thumb img{width:100%;height:100%;object-fit:cover}
.list-row h3{font-size:16.5px;line-height:1.5}
.list-row h3 a:hover{color:var(--c-accent)}
.list-row .row-desc{margin-top:6px;font-size:13px;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.list-row .row-meta{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:var(--c-muted)}
.list-more{display:flex;justify-content:center;margin-top:32px}
.list-empty{display:grid;place-items:center;gap:10px;min-height:240px;border:1px dashed #CFC3B0;border-radius:var(--r-l);background:var(--c-surface);text-align:center;padding:32px}
.list-empty .seal{width:34px;height:34px;font-size:13px}
.list-empty p{font-size:14.5px;color:var(--c-muted)}
/* C4 */
.guide-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.guide-title{position:relative;padding-left:16px}
.guide-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:var(--c-accent)}
.guide-title h2{font-size:24px;line-height:1.4}
.guide-title p{margin-top:12px;font-size:13.5px;color:var(--c-muted)}
.guide-body{max-width:760px}
.guide-body p{font-size:15.5px;line-height:1.95;color:#3C372F;margin-bottom:16px}
.check-list{margin-top:20px;display:grid;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:14.5px;color:#3C372F}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;width:18px;height:18px;border-radius:4px;background:rgba(94,140,122,.16);color:#41695A;font-size:12px;display:grid;place-items:center;line-height:1;margin-top:4px}
/* C5 */
.art-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.art-card{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.art-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(200,107,60,.45)}
.art-card .thumb{aspect-ratio:3/2;overflow:hidden;background:#EDE5D7}
.art-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.art-card:hover .thumb img{transform:scale(1.03)}
.art-card .body{padding:16px 18px 18px}
.art-card h3{font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.art-card .meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12.5px;color:var(--c-muted)}
/* C6 */
.topic-panel{background:rgba(94,140,122,.10);border:1px solid rgba(94,140,122,.26);border-radius:var(--r-xl);padding:36px}
.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 32px;margin-top:8px}
.topic-item{display:flex;gap:14px;padding:16px 4px;border-bottom:1px solid rgba(94,140,122,.22)}
.topic-item .no{font-family:var(--font-serif);font-size:20px;color:var(--c-celadon);line-height:1.4;min-width:28px}
.topic-item h3{font-size:15.5px;line-height:1.5}
.topic-item p{margin-top:6px;font-size:13px;color:#4C5B54;line-height:1.7}
/* C7 */
.faq-wrap{max-width:900px}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-m);background:var(--c-surface);margin-bottom:12px;overflow:hidden;transition:border-color .16s ease,box-shadow .16s ease}
.faq-item[open]{border-color:rgba(200,107,60,.45);box-shadow:var(--shadow-1);background:var(--c-hover);border-left:3px solid var(--c-accent)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;font-size:15px;font-weight:600;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{flex:none;width:18px;height:18px;position:relative;transition:transform .18s ease}
.faq-item summary .plus::before,.faq-item summary .plus::after{content:"";position:absolute;background:var(--c-accent);border-radius:1px}
.faq-item summary .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-item summary .plus::after{top:0;left:8px;width:2px;height:18px}
.faq-item[open] summary .plus{transform:rotate(45deg)}
.faq-item .answer{padding:0 20px 18px;font-size:14px;line-height:1.85;color:#4C463E}
/* C8 */
.timeline{max-width:900px;position:relative;padding-left:0}
.tl-item{display:grid;grid-template-columns:88px 1fr;gap:24px;position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:100px;top:26px;bottom:0;width:1px;background:var(--c-line)}
.tl-item:last-child::before{display:none}
.tl-item::after{content:"";position:absolute;left:97px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.tl-date{display:inline-flex;align-items:center;justify-content:center;font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(123,75,42,.10);color:var(--c-tea);height:26px;margin-top:-2px}
.tl-body h3{font-size:15px;line-height:1.6}
.tl-body h3 a:hover{color:var(--c-accent)}
.tl-body p{margin-top:6px;font-size:13px;color:var(--c-muted)}
/* C9 */
.matrix-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.cat-chip{display:inline-flex;align-items:center;gap:8px;min-height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);background:var(--c-surface);font-size:14px;color:#3C372F;transition:all .16s ease}
.cat-chip:hover{border-color:var(--c-accent);color:var(--c-accent-d);background:rgba(200,107,60,.05)}
.cat-chip .dot{width:6px;height:6px;border-radius:50%;background:var(--c-celadon)}
.report-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);padding:26px;box-shadow:var(--shadow-1)}
.report-card h3{font-size:18px;margin-bottom:8px}
.report-card p.hint{font-size:13px;color:var(--c-muted);margin-bottom:16px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:#3C372F}
.field input,.field select,.field textarea{width:100%;min-height:44px;border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff;padding:10px 12px;font-size:14px;transition:border-color .16s ease,box-shadow .16s ease}
.field textarea{min-height:104px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-accent);box-shadow:0 0 0 3px rgba(200,107,60,.15);outline:none}
.form-note{margin-top:10px;font-size:12px;color:var(--c-muted)}
/* footer */
.site-footer{background:var(--c-ink);color:#E5DDCE;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:44px}
.brand--footer .brand-text strong{color:#F3EDE1}
.brand--footer .brand-text small{color:#A9A294}
.brand--footer .seal{background:var(--c-accent)}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.85;color:#B9B1A2;max-width:340px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-tags span{font-size:12px;padding:3px 9px;border-radius:6px;border:1px solid rgba(243,237,225,.18);color:#C8C0B1}
.site-footer h4{font-size:14px;color:#F3EDE1;margin-bottom:14px;font-family:var(--font-sans);font-weight:600;letter-spacing:.04em}
.site-footer ul li{font-size:13.5px;color:#B9B1A2;margin-bottom:10px;line-height:1.7}
.site-footer ul li a:hover{color:var(--c-accent)}
.footer-bar{border-top:1px solid rgba(243,237,225,.14);padding:18px 24px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#9A9386}
/* responsive */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .footer-grid>div:last-child{grid-column:1/-1}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .header-inner{height:60px}
  .main-nav{position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--c-paper);flex-direction:column;align-items:stretch;gap:0;padding:14px 20px 32px;margin-left:0;transform:translateX(101%);transition:transform .25s ease;overflow-y:auto;z-index:90}
  .main-nav.open{transform:translateX(0)}
  .main-nav a{padding:14px 12px;border-bottom:1px solid var(--c-line);border-left:3px solid transparent;font-size:15px;white-space:normal}
  .main-nav a::after{display:none}
  .main-nav a.active{border-left-color:var(--c-accent);background:rgba(200,107,60,.07)}
  .menu-toggle{display:grid}
  .header-actions .btn{display:none}
  .cat-head-inner{grid-template-columns:1fr;gap:24px;align-items:start}
  .featured-card{grid-template-columns:1fr}
  .featured-media{aspect-ratio:16/10}
  .featured-body{padding:22px 20px}
  .guide-grid{grid-template-columns:1fr;gap:24px}
  .art-cards{grid-template-columns:1fr 1fr}
  .topic-grid{grid-template-columns:1fr}
  .matrix-grid{grid-template-columns:1fr;gap:32px}
  .filter-bar{top:60px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid>div:first-child{grid-column:1/-1}
  .footer-grid>div:last-child{grid-column:auto}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .container{padding:0 18px}
  .cat-head{padding:28px 0 36px}
  .cat-lead{font-size:15px}
  .list-row{grid-template-columns:96px 1fr;gap:14px;align-items:start}
  .list-thumb{width:96px}
  .list-row .row-status{display:none}
  .art-cards{grid-template-columns:1fr}
  .section-head{margin-bottom:26px}
  .topic-panel{padding:24px 18px}
  .tl-item{grid-template-columns:1fr;gap:8px;padding-left:2px}
  .tl-item::before{left:9px;top:34px}
  .tl-item::after{left:6px;top:26px}
  .tl-date{width:78px}
  .footer-bar{flex-direction:column}
}
@media (max-width:560px){
  .cat-stats{width:100%}
  .stat-chip{flex:1 1 40%;min-width:0;padding:10px 12px}
  .filter-inner{gap:10px}
  .filter-tools{margin-left:0;width:100%}
  .select-mini{flex:1}
  .btn{width:100%}
  .list-more .btn{width:auto}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}