/* roulang page: index */
:root {
  --bg: #F5F3F0;
  --surface: #FFFFFF;
  --surface-soft: #FAF8F4;
  --ink-strong: #121315;
  --ink-body: #22242A;
  --ink-muted: #5F636C;
  --line: #E6E1D9;
  --line-strong: #D8D1C6;
  --primary: #C6A279;
  --primary-strong: #D9BA8F;
  --primary-deep: #8A6C4C;
  --dark-bg: #17181B;
  --dark-surface: #1F2125;
  --dark-line: rgba(255, 255, 255, 0.12);
  --success: #558B6C;
  --warning: #B8843D;
  --error: #B85C47;
  --focus: rgba(198, 162, 121, 0.45);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 4px 12px rgba(0,0,0,.04);
  --shadow-md: 0 8px 20px rgba(0,0,0,.06), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 18px 40px rgba(0,0,0,.10), 0 6px 14px rgba(0,0,0,.05);
  --container: 1200px;
  --ease: cubic-bezier(.2,.8,.25,1);
  --font-sans: -apple-system, "SF Pro SC", "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink-body);font-family:var(--font-sans);font-size:16px;line-height:1.75;margin:0;padding:0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit;border:0;cursor:pointer;transition:background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease,transform .2s ease}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
hr{border:0;border-top:1px solid var(--line);margin:40px 0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--primary-strong);color:var(--primary-ink);padding:8px 12px;z-index:9999;border-radius:0 0 var(--radius-sm) 0}
.skip-link:focus{left:0;color:#141518}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container-sm{max-width:960px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-head{margin-bottom:48px;display:flex;justify-content:space-between;align-items:flex-end;gap:24px}
.section-head h2{font-size:clamp(28px,4vw,38px);font-weight:800;letter-spacing:-.5px;line-height:1.2;color:var(--ink-strong)}
.section-head p{color:var(--ink-muted);font-size:15px;margin-top:12px;max-width:600px}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--primary-deep);letter-spacing:.22em;margin-bottom:14px}
.section-kicker::before{content:"";width:18px;height:2px;background:var(--primary);display:inline-block;border-radius:2px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:var(--radius-pill);font-size:16px;font-weight:700;line-height:1;padding:14px 30px;min-height:48px;transition:all .25s var(--ease);white-space:nowrap;text-align:center;border:1px solid transparent}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{background:var(--primary-strong);box-shadow:0 8px 18px rgba(198,162,121,.28);transform:translateY(-2px)}
.btn-dark{background:#fff;color:var(--ink-strong);border-color:#fff}
.btn-dark:hover{background:var(--primary-strong);color:#141518}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-outline{background:var(--surface);color:var(--ink-strong);border-color:var(--line-strong)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-deep);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.btn-block{width:100%}
.btn .arr{transition:transform .25s ease}
.btn:hover .arr{transform:translateX(4px)}
.topbar{background:var(--dark-bg);color:rgba(255,255,255,.82);font-size:13px;padding:9px 0}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar-status{display:inline-flex;align-items:center;gap:10px}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(85,139,108,.2);flex:0 0 auto}
.topbar-note{color:rgba(255,255,255,.66)}
.site-header{position:sticky;top:14px;z-index:100;margin-top:14px}
.header-shell{max-width:var(--container);margin:0 auto;padding:0 14px;display:flex;align-items:center;justify-content:space-between;background:rgba(23,24,27,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.10);border-radius:22px;box-shadow:0 12px 34px rgba(0,0,0,.26);height:76px}
.brand{display:flex;align-items:center;gap:12px;padding:0 8px;color:#fff;flex:0 0 auto}
.brand-mark{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:14px;background:var(--primary);color:var(--primary-ink);font-weight:800;font-size:17px;letter-spacing:.02em;line-height:1}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:17px;font-weight:800;color:#fff;letter-spacing:.02em}
.brand-text small{font-size:11px;color:rgba(255,255,255,.65);letter-spacing:.18em;margin-top:3px;text-transform:none}
.nav-panel{display:flex;align-items:center;gap:5px}
.nav-chip{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;width:72px;height:60px;border-radius:15px;color:rgba(255,255,255,.72);font-size:12px;font-weight:600;transition:background .2s ease,color .2s ease,transform .2s ease;text-align:center}
.nav-chip svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-chip:hover{background:var(--primary);color:var(--primary-ink);transform:translateY(-2px)}
.nav-chip.is-active{background:rgba(198,162,121,.18);color:var(--primary-strong)}
.nav-chip.is-active::after{content:"";position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:16px;height:2px;border-radius:2px;background:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.menu-toggle{display:none;width:44px;height:44px;border-radius:14px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;align-items:center;justify-content:center;transition:background .25s ease,transform .25s ease}
.menu-toggle:hover{background:rgba(255,255,255,.16)}
.menu-toggle svg{width:24px;height:24px;stroke:#fff}
.menu-toggle.is-open{transform:rotate(90deg)}
.mobile-bg{display:none}
.hero{position:relative;margin:0;padding:78px 0 120px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center 20%;opacity:.16;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(245,243,240,.96) 12%,rgba(245,243,240,.78) 48%,rgba(222,212,198,.68) 100%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 440px;gap:64px;align-items:center}
.hero-copy .hero-tag{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border:1px solid rgba(198,162,121,.4);background:rgba(255,255,255,.72);border-radius:999px;font-size:13px;font-weight:600;color:var(--primary-deep);margin-bottom:26px;backdrop-filter:blur(6px)}
.hero-tag .pulse{width:8px;height:8px;background:var(--success);border-radius:50%;box-shadow:0 0 0 0 rgba(85,139,108,.4);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(85,139,108,.4)}70%{box-shadow:0 0 0 9px rgba(85,139,108,0)}100%{box-shadow:0 0 0 0 rgba(85,139,108,0)}}
.hero h1{font-size:clamp(40px,5.4vw,62px);line-height:1.12;font-weight:800;letter-spacing:-1px;color:var(--ink-strong);max-width:700px}
.hero h1 .gold{color:var(--primary-deep);position:relative}
.hero-sub{font-size:17px;line-height:1.9;color:var(--ink-muted);max-width:540px;margin:24px 0 34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:22px}
.hero-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--ink-muted);font-size:13px}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-access{position:relative;background:rgba(23,24,27,.92);border-radius:28px;padding:28px;color:#fff;box-shadow:0 26px 64px rgba(0,0,0,.3);border:1px solid rgba(255,255,255,.08);min-height:430px;display:flex;flex-direction:column;overflow:hidden;backdrop-filter:blur(12px)}
.hero-access::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.2}
.hero-access::after{content:"";position:absolute;inset:0;background:linear-gradient(145deg,rgba(23,24,27,.2),rgba(23,24,27,.95) 70%)}
.access-inner{position:relative;z-index:2;display:flex;flex-direction:column;flex:1}
.access-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.access-label{font-size:12px;color:rgba(255,255,255,.58);letter-spacing:.2em;font-weight:600}
.access-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;padding:5px 12px;border-radius:999px;background:rgba(85,139,108,.22);color:var(--success);border:1px solid rgba(85,139,108,.4)}
.access-code{margin:46px 0 20px;border-top:1px dashed rgba(255,255,255,.16);padding-top:20px}
.access-code strong{font-family:var(--font-mono);font-size:15px;font-weight:600;color:rgba(255,255,255,.72);letter-spacing:.12em}
.access-title{font-size:22px;font-weight:700;line-height:1.4;margin:4px 0 26px}
.access-list{display:grid;gap:12px;margin-top:auto}
.access-list-item{display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:14px;color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:12px}
.access-list-item span:first-child{color:rgba(255,255,255,.5);font-size:13px}
.access-foot{margin-top:18px;padding:14px 0 0;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.56)}
.hero-note{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:12px;padding:9px 16px;font-size:13px;color:var(--ink-muted);display:inline-flex;align-items:center;gap:8px;backdrop-filter:blur(4px)}
.hero-note::before{content:"↗";color:var(--primary-deep);font-weight:700}
.scroll-guide{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;color:var(--ink-muted);z-index:3;gap:6px;font-size:12px;letter-spacing:.14em}
.scroll-guide .mouse{width:22px;height:36px;border:2px solid var(--ink-muted);border-radius:14px;position:relative}
.scroll-guide .mouse::after{content:"";position:absolute;top:7px;left:7px;width:4px;height:7px;background:var(--primary);border-radius:4px;animation:scrollDot 1.8s infinite ease-out}
@keyframes scrollDot{0%{opacity:1;transform:translateY(0)}70%{opacity:0;transform:translateY(12px)}100%{opacity:0;transform:translateY(0)}}
.stats-card{margin-top:-72px;background:var(--surface);border-radius:24px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.5);padding:32px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;z-index:5}
.stat-cell{text-align:center;border-left:1px solid var(--line);padding:12px 14px}
.stat-cell:first-child{border-left:0}
.stat-num{font-size:clamp(26px,3vw,40px);font-weight:800;color:var(--ink-strong);font-family:var(--font-mono);letter-spacing:-.02em;line-height:1.2}
.stat-num sup{font-size:15px;font-weight:700;color:var(--primary-deep);top:-.8em}
.stat-txt{font-size:13px;color:var(--ink-muted);margin-top:8px;line-height:1.5}
.paths-section{background:var(--bg)}
.path-step{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:path}
.path-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--line);padding:28px 24px;position:relative;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s ease}
.path-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(198,162,121,.6)}
.path-num{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:16px;background:rgba(198,162,121,.16);color:var(--primary-deep);font-weight:700;font-size:15px;margin-bottom:18px;transition:background .3s ease,color .3s ease}
.path-card:nth-child(2) .path-num{background:rgba(23,24,27,.08);color:var(--ink-strong)}
.path-card:nth-child(3) .path-num{background:rgba(85,139,108,.14);color:var(--success)}
.path-card:nth-child(4) .path-num{background:rgba(184,92,71,.1);color:var(--error)}
.path-card h3{font-size:18px;font-weight:700;color:var(--ink-strong);margin-bottom:8px}
.path-card p{font-size:14px;color:var(--ink-muted);line-height:1.7}
.news-section{background:var(--surface);border-radius:0;padding-top:70px;padding-bottom:82px;position:relative}
.news-list{position:relative}
.news-row{display:flex;align-items:center;gap:28px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:18px;margin-bottom:16px;transition:all .3s var(--ease);box-shadow:var(--shadow-sm)}
.news-row:hover{border-color:rgba(198,162,121,.5);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.news-time{flex:0 0 142px;display:flex;flex-direction:column;align-items:center;background:var(--surface-soft);border:1px solid var(--line);border-radius:14px;padding:14px 8px;line-height:1.25}
.news-time em{font-family:var(--font-mono);font-style:normal;font-size:26px;font-weight:800;color:var(--ink-strong)}
.news-time span{font-size:12px;color:var(--ink-muted)}
.news-content{flex:1;min-width:0}
.news-content h3{font-size:20px;font-weight:700;color:var(--ink-strong);margin:8px 0 8px;letter-spacing:.01em}
.news-content h3 a:hover{color:var(--primary-deep)}
.news-content p{font-size:14px;color:var(--ink-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.7}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:rgba(198,162,121,.14);color:var(--primary-deep);font-size:12px;font-weight:600;line-height:1.6}
.news-arrow{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);color:var(--primary-deep);font-size:20px;transition:all .25s ease;flex:0 0 auto}
.news-row:hover .news-arrow{background:var(--primary);color:var(--primary-ink);border-color:var(--primary);transform:translateX(3px)}
.empty-box{border:1px dashed var(--line-strong);border-radius:16px;padding:52px 20px;text-align:center;color:var(--ink-muted)}
.empty-box .empty-ic{font-size:36px;line-height:1;color:var(--primary);margin-bottom:12px}
.empty-box p{font-size:15px}
.cats-band{background:var(--bg)}
.cat-layout{display:grid;grid-template-columns:1.1fr .9fr;grid-auto-rows:auto;gap:24px}
.cat-col{display:grid;gap:24px}
.cat-col--left{grid-template-rows:auto 170px}
.cat-col--right{grid-template-rows:190px 210px}
.cat-card{position:relative;overflow:hidden;border-radius:22px;background:var(--surface);border:1px solid var(--line);padding:26px 34px;display:flex;flex-direction:column;justify-content:flex-end;min-height:100%;transition:transform .3s var(--ease),box-shadow .3s var(--ease);box-shadow:var(--shadow-sm)}
.cat-card .cat-media{position:absolute;inset:0;z-index:0}
.cat-card .cat-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card .cat-media::after{content:"";position:absolute;inset:0;background:linear-gradient(155deg,rgba(18,19,21,.3),rgba(18,19,21,.58) 68%,rgba(18,19,21,.82))}
.cat-card .cat-body{position:relative;z-index:2;color:#fff}
.cat-card:hover{box-shadow:var(--shadow-lg)}
.cat-card:hover .cat-media img{transform:scale(1.05)}
.cat-card .cat-flag{color:rgba(255,255,255,.66);font-size:13px;font-weight:600;letter-spacing:.14em;margin-bottom:8px}
.cat-card h3{font-size:clamp(20px,2.4vw,28px);font-weight:800;line-height:1.3}
.cat-card p{font-size:14px;color:rgba(255,255,255,.78);margin-top:10px;max-width:420px;line-height:1.7}
.cat-card .cat-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--primary-strong);font-size:14px;font-weight:700}
.cat-card .cat-link .arr{transition:transform .25s ease}
.cat-card:hover .cat-link .arr{transform:translateX(5px)}
.cat-card--feature{grid-row:auto;min-height:330px;border-radius:22px}
.cat-card--small{min-height:auto;padding:24px}
.cat-card--small h3{font-size:20px}
.cat-card--small p{font-size:13px}
.cat-card--solid-gold{background:var(--dark-bg)}
.cat-card--light{background:var(--surface)}
.cat-card--light h3{color:var(--ink-strong)}
.cat-card--light p{color:var(--ink-muted)}
.features-band{position:relative;background:var(--dark-bg);color:#fff;padding:104px 0}
.features-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-position:center 30%;background-size:cover;opacity:.2}
.features-band::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(23,24,27,.88),rgba(23,24,27,.72) 50%,rgba(23,24,27,.96))}
.features-inner{position:relative;z-index:2}
.features-inner .section-head h2{color:#fff}
.features-inner .section-head p{color:rgba(255,255,255,.62)}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-main{grid-column:span 2}
.feature-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:34px 32px;backdrop-filter:blur(8px);transition:all .3s var(--ease)}
.feature-item:hover{background:rgba(255,255,255,.1);border-color:rgba(198,162,121,.42);transform:translateY(-5px)}
.feature-ic{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;background:rgba(198,162,121,.18);border:1px solid rgba(198,162,121,.32);color:var(--primary-strong);font-size:24px;margin-bottom:20px}
.feature-item h3{font-size:20px;font-weight:700;margin-bottom:12px;letter-spacing:.01em}
.feature-item p{font-size:14px;color:rgba(255,255,255,.68);line-height:1.8}
.feature-tag{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.feature-tag span{font-size:12px;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.12);color:rgba(255,255,255,.76)}
.compare-section{background:var(--bg)}
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:32px 28px;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:all .3s var(--ease)}
.compare-col .plan-name{font-size:20px;font-weight:800;color:var(--ink-strong)}
.compare-col .plan-fit{font-size:13px;color:var(--ink-muted);margin-top:6px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.compare-col ul{padding:18px 0 24px;display:grid;gap:10px}
.compare-col li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-body);line-height:1.65}
.compare-col li::before{content:"✓";flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:rgba(85,139,108,.15);color:var(--success);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:2px}
.compare-col.is-recommend{background:var(--dark-bg);color:#fff;border-color:var(--primary);box-shadow:0 24px 52px rgba(0,0,0,.22);margin-top:-16px;padding-top:38px;position:relative}
.compare-col.is-recommend .plan-name{color:#fff}
.compare-col.is-recommend .plan-fit{color:rgba(255,255,255,.6)}
.compare-col.is-recommend li{color:rgba(255,255,255,.86)}
.compare-col.is-recommend li::before{background:rgba(198,162,121,.2);color:var(--primary-strong)}
.reco-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--primary);color:var(--primary-ink);padding:5px 16px;border-radius:999px;font-size:12px;font-weight:700}
.compare-col .price{display:flex;align-items:baseline;gap:6px;margin:8px 0 2px}
.price-data{color:var(--ink-muted);font-family:var(--font-mono);font-size:13px;margin-bottom:18px}
.recommend .price-data{color:rgba(255,255,255,.5)}
.price-data strong{font-size:30px;color:var(--ink-strong);font-weight:800}
.is-recommend .price-data strong{color:#fff}
.faq-section{background:var(--surface)}
.faq-width{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;background:transparent;text-align:left;padding:24px 4px;font-size:17px;font-weight:700;color:var(--ink-strong);line-height:1.55}
.faq-q:hover{color:var(--primary-deep)}
.faq-icon{position:relative;flex:0 0 26px;width:26px;height:26px;border:1px solid var(--line-strong);border-radius:50%;transition:all .3s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--ink-strong);border-radius:2px;transition:all .3s var(--ease)}
.faq-icon::before{width:11px;height:1.6px;transform:translate(-50%,-50%)}
.faq-icon::after{width:1.6px;height:11px;transform:translate(-50%,-50%)}
.faq-item.open .faq-icon{border-color:var(--primary)}
.faq-item.open .faq-icon::before{transform:translate(-50%,-50%) rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.faq-a-inner{padding:0 46px 26px 24px;color:var(--ink-muted);font-size:15px;line-height:1.85}
.cta-band{position:relative;background:var(--dark-bg);color:#fff;padding:100px 0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-position:center 20%;background-size:cover;opacity:.24}
.cta-band::after{content:"";position:absolute;inset:0;background:radial-gradient(600px 420px at 80% 20%,rgba(198,162,121,.2),rgba(14,15,16,.96) 70%)}
.cta-inner{position:relative;z-index:2;max-width:980px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:clamp(30px,4vw,44px);font-weight:800;color:#fff;letter-spacing:-.3px;line-height:1.25;margin-bottom:18px}
.cta-inner .lead{color:rgba(255,255,255,.7);font-size:17px;line-height:1.8;max-width:700px;margin:0 auto 44px}
.cta-form{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(20px);border-radius:24px;padding:36px 32px;display:grid;grid-template-columns:1fr 1fr;gap:22px;text-align:left;max-width:760px;margin:0 auto}
.form-title{grid-column:1/-1;text-align:center;font-size:19px;font-weight:700;color:#fff}
.form-group label{display:block;color:rgba(255,255,255,.68);font-size:13px;margin-bottom:8px;letter-spacing:.03em}
.form-group input,.form-group select{width:100%;border:0;border-bottom:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;font-size:16px;padding:10px 2px;transition:border-color .25s ease;border-radius:0}
.form-group input:focus,.form-group select:focus{outline:none;border-bottom-color:var(--primary-strong)}
.form-group input::placeholder{color:rgba(255,255,255,.36)}
.form-group select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10' viewBox='0 0 14 10'%3E%3Cpath fill='none' stroke='%23C6A279' d='M1 1l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 4px center}
.form-group option{background:var(--dark-surface);color:#fff}
.form-full{grid-column:1/-1}
.form-foot{grid-column:1/-1;text-align:center;padding-top:8px}
.form-foot p{color:rgba(255,255,255,.42);font-size:12px;margin-top:12px}
.site-footer{background:#111214;color:rgba(255,255,255,.7);padding-top:72px;border-top:1px solid rgba(198,162,121,.25)}
.footer-brand{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-bottom:44px}
.footer-brand .brand{color:#fff}
.footer-desc{font-size:14px;color:rgba(255,255,255,.5)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:48px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.62);font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--primary-strong)}
.footer-copy{position:relative;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:13px;color:rgba(255,255,255,.4)}
.footer-copy a{color:rgba(255,255,255,.5)}
.footer-copy a:hover{color:var(--primary-strong)}
.backtop{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--dark-bg);color:#fff;z-index:50;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;border:1px solid rgba(255,255,255,.3);cursor:pointer;transition:all .3s ease}
.backtop.show{opacity:1;visibility:visible}
.backtop:hover{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.backtop svg{width:20px;height:20px}
.home-cta{position:relative}
@media (max-width:1100px){
  .hero-inner{grid-template-columns:1fr 380px;gap:48px}
  .hero-access{min-height:400px}
  .compare-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
  .compare-col.is-recommend{margin-top:0;padding:32px 28px}
  .feature-main{grid-column:span 1}
  .feature-grid{grid-template-columns:1fr}
  .cat-layout{grid-template-columns:1fr}
  .cat-col--right{grid-template-rows:repeat(2,180px)}
  .nav-chip{width:60px}
}
@media (max-width:900px){
  .section{padding:72px 0}
  .header-shell{padding:0 12px}
  .nav-panel{position:absolute;top:calc(100% + 10px);left:12px;right:12px;background:rgba(23,24,27,.98);border-radius:20px;border:1px solid rgba(255,255,255,.12);padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:10px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .28s var(--ease);box-shadow:0 20px 50px rgba(0,0,0,.42);z-index:80}
  .site-header.menu-open .nav-panel{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-chip{width:100%;height:58px;flex-direction:row;gap:10px;justify-content:flex-start;padding:0 14px}
  .nav-chip.is-active::after{display:none}
  .nav-chip.is-active{background:rgba(198,162,121,.18)}
  .menu-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .header-actions .menu-toggle{margin-left:2px}
  .stats-card{grid-template-columns:1fr 1fr;gap:18px 12px;padding:24px}
  .stat-cell:nth-child(2){border-left:0}
  .news-row{flex-wrap:wrap}
  .news-time{flex:0 0 100%;flex-direction:row;justify-content:space-between;gap:8px;padding:10px 16px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{flex-direction:column;align-items:flex-start}
}
@media (max-width:640px){
  .section{padding:56px 0}
  .topbar .container{flex-direction:column;align-items:flex-start;gap:4px;padding-top:6px;padding-bottom:6px}
  .topbar-note{font-size:12px}
  .hero{padding:40px 0 80px}
  .hero-inner{grid-template-columns:1fr}
  .hero h1{font-size:34px;line-height:1.22}
  .hero-actions .btn{width:100%}
  .hero-access{margin-top:20px;min-height:auto}
  .scroll-guide{display:none}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .path-step{grid-template-columns:1fr}
  .bg-feed .path-card{display:grid;grid-template-columns:60px 1fr;gap:18px;align-items:start}
  .bg-feed .path-num{margin-bottom:0}
  .news-row{gap:14px;padding:18px}
  .news-content h3{font-size:17px;line-height:1.5}
  .news-arrow{width:38px;height:38px}
  .news-section-empty{padding-top:0}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cat-card{padding:24px}
  .cat-col--left{grid-template-rows:auto 190px}
  .cat-col--right{grid-template-rows:210px 220px}
  .cta-form{grid-template-columns:1fr;padding:28px 20px}
  .form-full{grid-column:auto}
  .form-foot{grid-column:auto}
  .compare-col{padding:26px 22px}
  .faq-a-inner{padding:0 20px 24px 4px}
}
@media (max-width:380px){
  .brand-text small{display:none}
  .hero h1{font-size:30px}
  .stat-num{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --bg:#F5F3F0;
  --surface:#FFFFFF;
  --ink-strong:#121315;
  --ink-body:#22242A;
  --ink-muted:#5F636C;
  --line:#E3DFD8;
  --primary:#C6A279;
  --primary-strong:#D5B48E;
  --primary-ink:#141518;
  --dark-bg:#17181B;
  --dark-surface:#1F2125;
  --success:#558B6C;
  --warning:#B8843D;
  --error:#B85C47;
  --focus-ring:rgba(198,162,121,.45);
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 1px 2px rgba(0,0,0,.04),0 4px 12px rgba(0,0,0,.04);
  --shadow-md:0 8px 24px rgba(0,0,0,.07),0 2px 6px rgba(0,0,0,.04);
  --container:1200px;
  --gutter:24px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink-body);
  font-family:-apple-system,"SF Pro SC","PingFang SC","HarmonicOS Sans SC","Microsoft YaHei UI","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.mono,time,.stat-num,.breadcrumb{font-family:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 28px;font-weight:700;font-size:15px;
  border:1px solid transparent;transition:all .3s ease-out;white-space:nowrap;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s ease-out}
.btn-primary{background:var(--primary);color:var(--primary-ink)}
.btn-primary:hover{background:var(--primary-strong);color:var(--primary-ink);transform:translateY(-2px);box-shadow:0 10px 24px rgba(198,162,121,.28)}
.btn-light{background:#fff;color:#1a1b1f}
.btn-light:hover{background:#f0ede8;color:#1a1b1f;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-strong);transform:translateY(-2px)}
.btn-arrow:hover svg{transform:translateX(4px)}

.topbar{background:#121315;color:rgba(255,255,255,.7);font-size:13px;line-height:1.2}
.topbar-inner{max-width:var(--container);margin:0 auto;padding:9px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{display:inline-flex;align-items:center;gap:8px}
.pulse-dot{width:8px;height:8px;border-radius:99px;background:#6fcf97;box-shadow:0 0 0 0 rgba(111,207,151,.55);animation:pulse 2s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(111,207,151,.5)}
  70%{box-shadow:0 0 0 8px rgba(111,207,151,0)}
  100%{box-shadow:0 0 0 0 rgba(111,207,151,0)}
}
.site-header{padding:14px 0 16px;background:var(--bg)}
.header-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:14px}
.brand{display:inline-flex;align-items:center;gap:12px}
.brand-mark{
  width:44px;height:44px;flex:none;border-radius:14px;
  background:var(--primary-ink);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;letter-spacing:-.02em;
  box-shadow:0 8px 20px rgba(0,0,0,.12);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:20px;font-weight:800;color:var(--ink-strong);letter-spacing:.01em}
.brand-text small{font-size:12px;color:var(--ink-muted);letter-spacing:.08em;margin-top:3px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink-strong)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;margin:3px auto;border-radius:2px;transition:transform .3s ease-out}
.nav-panel{
  background:var(--dark-bg);
  border-radius:20px;
  border-top:2px solid rgba(198,162,121,.7);
  box-shadow:0 12px 30px rgba(0,0,0,.12);
  padding:8px;
  display:flex;
  align-items:center;
  gap:6px;
  position:relative;
}
.nav-chip{
  display:inline-flex;align-items:center;gap:9px;
  min-height:48px;padding:8px 15px;border-radius:14px;
  color:rgba(255,255,255,.75);font-size:14px;font-weight:600;
  transition:background .25s ease-out,color .25s ease-out,transform .2s ease-out;
}
.nav-chip svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.nav-chip:hover{background:rgba(255,255,255,.08);color:#fff;transform:translateY(-1px)}
.nav-chip:active{transform:translateY(0)}
.nav-chip.is-active{background:var(--primary);color:var(--primary-ink)}
.nav-chip.is-active:hover{background:var(--primary-strong);color:var(--primary-ink)}
.nav-cta{margin-left:auto;flex:none}
@media (max-width:1023px){
  .nav-panel{overflow-x:auto;scrollbar-width:none}
  .nav-panel::-webkit-scrollbar{display:none}
  .nav-chip{flex:none}
  .nav-cta{margin-left:0;margin-right:2px}
}
@media (max-width:767px){
  .topbar-inner{font-size:12px;padding:8px 16px}
  .site-header{padding:10px 0 12px}
  .container{padding:0 16px}
  .header-bar{margin-bottom:12px}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:13px}
  .brand-text strong{font-size:17px}
  .brand-text small{font-size:11px}
  .nav-toggle{display:inline-flex}
  .nav-panel{display:none;flex-direction:column;align-items:stretch;gap:4px;padding:10px;max-height:calc(100vh - 130px);overflow-y:auto;position:absolute;left:16px;right:16px;top:100%;z-index:100}
  .nav-panel.is-open{display:flex}
  .nav-chip{width:100%;justify-content:flex-start;flex:none}
  .nav-cta{width:100%;justify-content:center;margin:8px 0 2px}
  .site-header{position:relative}
}

.breadcrumb{background:#EDEAE5;border-bottom:1px solid var(--line);font-size:13px;color:var(--ink-muted)}
.breadcrumb-inner{max-width:var(--container);margin:0 auto;padding:10px 24px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb-inner a{color:var(--ink-muted);transition:color .2s}
.breadcrumb-inner a:hover{color:var(--primary)}
.breadcrumb-sep{opacity:.45;margin:0 2px}
.breadcrumb-current{color:var(--ink-strong);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:300px}
@media(max-width:767px){
  .breadcrumb-inner{padding:9px 16px;font-size:12px}
  .breadcrumb-current{max-width:180px}
}

.article-wrap{padding:44px 0 28px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start}
.article-main{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:44px 48px;overflow:hidden}
.article-header{margin-bottom:28px}
.article-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(198,162,121,.14);border:1px solid rgba(198,162,121,.3);color:#8a6a46;font-size:13px;font-weight:700;padding:5px 12px;border-radius:999px;margin-bottom:20px}
.article-header h1{font-size:clamp(32px,4.8vw,52px);font-weight:800;line-height:1.2;color:var(--ink-strong);letter-spacing:-.02em}
.article-lead{font-size:16px;color:var(--ink-muted);margin-top:16px;max-width:720px}
.article-meta-line{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-muted)}
.article-meta-line a{color:inherit}
.article-meta-line a:hover{color:var(--primary)}
.article-cat-chip{display:inline-flex;align-items:center;background:var(--ink-strong);color:#fff;padding:3px 12px;border-radius:99px;font-size:13px;font-weight:600}
.article-date{font-size:13px}
.article-cover{border-radius:var(--radius);overflow:hidden;margin:26px 0 8px;background:var(--bg)}
.article-cover img{width:100%;height:auto;object-fit:cover}
.article-cover figcaption{padding:14px 16px 6px;font-size:13px;color:var(--ink-muted)}
.article-content{max-width:100%}
.article-content p{font-size:16px;line-height:1.9;color:#2a2c33;margin-bottom:22px}
.article-content h2{font-size:28px;font-weight:800;color:var(--ink-strong);margin:44px 0 18px;line-height:1.35;letter-spacing:-.01em}
.article-content h3{font-size:22px;font-weight:700;color:var(--ink-strong);margin:36px 0 14px;line-height:1.45}
.article-content h4{font-size:18px;font-weight:700;color:var(--ink-strong);margin:28px 0 10px}
.article-content img{border-radius:var(--radius);margin:24px auto}
.article-content ul,.article-content ol{margin:0 0 24px;padding-left:1.5em}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:8px;line-height:1.8}
.article-content blockquote{
  border-left:4px solid var(--primary);background:var(--bg);
  margin:28px 0;padding:16px 22px;border-radius:0 16px 16px 0;
  color:var(--ink-strong);font-size:16px;line-height:1.8;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content a{color:#9a6b33;text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--primary)}
.article-content pre{
  background:var(--dark-bg);color:#f0ebe3;padding:20px;border-radius:16px;
  overflow-x:auto;font-size:14px;line-height:1.7;margin:24px 0;
}
.article-content code{font-family:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;background:rgba(18,19,21,.06);padding:2px 7px;border-radius:6px;font-size:.9em;color:var(--ink-strong)}
.article-content pre code{background:transparent;padding:0;color:inherit}
.article-content hr{border:none;border-top:1px solid var(--line);margin:36px 0}
.article-back-to-top{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-muted);margin-top:8px}
.article-back-to-top:hover{color:var(--primary)}
@media(max-width:1023px){
  .article-grid{grid-template-columns:1fr;gap:32px}
  .article-main{padding:36px 32px}
}
@media(max-width:767px){
  .article-wrap{padding:28px 0 16px}
  .article-main{padding:24px 18px;border-radius:18px}
  .article-header h1{font-size:30px}
  .article-content p{font-size:15px;line-height:1.85}
  .article-content h2{font-size:24px;margin-top:34px}
  .article-content h3{font-size:19px}
}
.article-empty{text-align:center;padding:80px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-lg)}
.article-empty .empty-ico{width:68px;height:68px;margin:0 auto 20px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center}
.article-empty .empty-ico svg{width:30px;height:30px;stroke:var(--primary)}
.article-empty h1{font-size:24px;color:var(--ink-strong)}
.article-empty p{color:var(--ink-muted);margin-top:8px}
.article-empty .btn{margin-top:24px}

.article-aside{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){
  .article-aside{position:sticky;top:24px}
}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow-sm)}
.aside-title{font-size:15px;font-weight:800;color:var(--ink-strong);display:flex;align-items:center;gap:10px;margin-bottom:16px;letter-spacing:.02em}
.aside-title::before{content:"";width:4px;height:18px;background:var(--primary);border-radius:99px}
.aside-summary{font-size:14px;line-height:1.8;color:var(--ink-muted)}
.meta-list li{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.meta-list li:last-child{border-bottom:none}
.meta-list span{color:var(--ink-muted)}
.meta-list strong{color:var(--ink-strong);font-weight:600;text-align:right}
.aside-nav-list{display:flex;flex-direction:column;gap:6px}
.aside-nav-list a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:var(--bg);color:var(--ink-body);font-size:14px;transition:all .22s ease-out}
.aside-nav-list a:hover{background:rgba(198,162,121,.16);color:var(--primary-ink);transform:translateX(3px)}
.aside-nav-list .nav-list-arrow{margin-left:auto;color:var(--primary);font-size:18px;line-height:1}
.aside-tip{background:var(--dark-bg);color:rgba(255,255,255,.75);border-radius:16px;padding:20px}
.aside-tip h3{color:#fff;font-size:15px;margin-bottom:8px;font-weight:700}
.aside-tip p{font-size:13px;line-height:1.7}

.article-footer-link{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.link-group{display:inline-flex;align-items:center;gap:8px}
.text-btn{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink-strong);transition:all .22s ease-out}
.text-btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .3s}
.text-btn:hover{color:var(--primary)}
.text-btn:hover svg{transform:translateX(4px)}
.copy-btn{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-muted);padding:6px 14px;border:1px solid var(--line);border-radius:99px;transition:all .2s}
.copy-btn:hover{color:var(--primary);border-color:var(--primary);background:rgba(198,162,121,.06)}

.more-section{margin-top:72px}
.more-head{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}
.more-head h2{font-size:26px;font-weight:800;color:var(--ink-strong)}
.more-head a{font-size:14px;color:var(--ink-muted);display:inline-flex;align-items:center;gap:6px}
.more-head a:hover{color:var(--primary)}
.more-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.more-card{
  display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:18px;padding:18px;transition:all .3s ease-out;
}
.more-card img{width:132px;height:96px;object-fit:cover;border-radius:14px;flex:none}
.more-card-body{display:flex;flex-direction:column;justify-content:center;min-width:0;gap:6px}
.more-card-cat{font-size:12px;font-weight:700;color:#8a6a46;letter-spacing:.05em}
.more-card-title{font-size:16px;font-weight:700;color:var(--ink-strong);line-height:1.45}
.more-card-desc{font-size:13px;color:var(--ink-muted);line-height:1.6;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.more-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(198,162,121,.5)}
@media(max-width:767px){
  .more-section{margin-top:48px}
  .more-grid{grid-template-columns:1fr}
  .more-card img{width:100px;height:78px}
  .more-card-title{font-size:15px}
}

.article-cta{margin:72px 0 20px;background:var(--dark-bg);border-radius:var(--radius-lg);padding:56px;color:rgba(255,255,255,.78);position:relative;overflow:hidden}
.article-cta::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,rgba(198,162,121,0),var(--primary),rgba(198,162,121,0))}
.article-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.article-cta-text span{display:block;font-size:13px;color:var(--primary);font-weight:700;margin-bottom:8px}
.article-cta-text h2{font-size:26px;font-weight:800;color:#fff;line-height:1.4}
.article-cta-text p{margin-top:10px;color:rgba(255,255,255,.6);max-width:560px}
.article-cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media(max-width:767px){
  .article-cta{padding:36px 24px;margin-top:48px}
  .article-cta-text h2{font-size:21px}
}

.site-footer{margin-top:56px;background:var(--dark-bg);color:rgba(255,255,255,.62);border-top:1px solid rgba(198,162,121,.3);padding:56px 0 28px}
.site-footer .container{max-width:var(--container)}
.footer-brand{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{color:#fff}
.footer-desc{max-width:340px;font-size:14px;color:rgba(255,255,255,.48);margin-top:6px;line-height:1.7}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:36px 0 28px}
.footer-grid h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.footer-grid ul li{margin-bottom:9px;font-size:14px}
.footer-grid ul a{color:rgba(255,255,255,.56);display:inline-block;transition:color .2s,transform .2s}
.footer-grid ul a:hover{color:var(--primary-strong);transform:translateX(3px)}
.footer-copy{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.4)}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:767px){
  .site-footer{padding:40px 0 22px}
  .footer-brand{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:20px;padding:28px 0 22px}
  .footer-copy{flex-direction:column;gap:4px;font-size:12px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root {
  --bg: #F5F3F0;
  --surface: #FFFFFF;
  --ink-strong: #121315;
  --ink-body: #22242A;
  --ink-muted: #5F636C;
  --line: #E3DFD8;
  --primary: #C6A279;
  --primary-strong: #D5B48E;
  --primary-ink: #141518;
  --dark-bg: #17181B;
  --dark-surface: #1F2125;
  --dark-soft: #26272C;
  --success: #558B6C;
  --warning: #B8843D;
  --error: #B85C47;
  --focus-ring: rgba(198,162,121,0.45);
  --radius: 16px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 4px 12px rgba(0,0,0,.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,.07), 0 2px 6px rgba(0,0,0,.04);
  --container: 1200px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--ink-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body, h1, h2, h3, h4, p, ul, ol, figure, blockquote {
  margin: 0;
}

ul, ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section-space {
  padding: 96px 0;
}

@media (max-width: 1023px) {
  .section-space {
    padding: 72px 0;
  }
}

@media (max-width: 767px) {
  .section-space {
    padding: 56px 0;
  }
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ===== top bar ===== */
.topbar {
  background: #101114;
  color: rgba(255,255,255,.68);
  font-size: 12px;
  letter-spacing: .02em;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.topbar-inner {
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.topbar-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #7EC99A;
  border-radius: 50%;
  margin-right: 8px;
  box-shadow: 0 0 0 3px rgba(126,201,154,.14);
}

.topbar-right {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: rgba(255,255,255,.5);
}

.topbar-code {
  color: var(--primary);
  font-weight: 600;
}

@media (max-width: 767px) {
  .topbar-right span:last-child {
    display: none;
  }
}

/* ===== Header ===== */
.site-header {
  background: rgba(245,243,240,.86);
  backdrop-filter: blur(14px);
  padding: 14px 0 0;
  position: sticky;
  top: 0;
  z-index: 80;
}

.nav-panel-wrap {
  background: var(--dark-bg);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 36px rgba(0,0,0,.16);
  border: 1px solid rgba(198,162,121,.3);
  overflow: hidden;
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 14px;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  margin: 0 8px 0 6px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #D9BB91, #B98F5F);
  color: #1B1B1E;
  font-weight: 800;
  border-radius: 12px;
  font-size: 16px;
  letter-spacing: -.02em;
  padding: 0 8px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-text small {
  color: rgba(255,255,255,.44);
  font-size: 11px;
  letter-spacing: .08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 2px 0;
}

.nav-links::-webkit-scrollbar {
  display: none;
}

.nav-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.72);
  border-radius: 999px;
  padding: 8px 15px 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all .3s var(--ease);
}

.nav-chip svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-chip:hover {
  background: rgba(255,255,255,.09);
  color: #fff;
  border-color: rgba(255,255,255,.12);
}

.nav-chip:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.nav-chip.is-active {
  background: var(--primary);
  color: var(--primary-ink);
  border-color: transparent;
  font-weight: 700;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  background: var(--primary);
  color: var(--primary-ink);
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  padding: 12px 22px;
  transition: background .3s ease, transform .3s ease, box-shadow .3s;
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--primary-strong);
  box-shadow: 0 6px 18px rgba(198,162,121,.28);
  transform: translateY(-1px);
}

.nav-cta:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.06);
  color: #fff;
  flex-direction: column;
  gap: 4px;
  border: 1px solid rgba(255,255,255,.1);
}

.menu-toggle span {
  width: 18px;
  height: 1.6px;
  background: currentColor;
  display: block;
  transition: transform .3s, opacity .3s;
}

.mobile-menu {
  display: none;
  padding: 0 14px 16px;
  border-top: 1px solid rgba(255,255,255,.07);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 14px;
}

.mobile-menu-grid .nav-chip {
  width: 100%;
  justify-content: flex-start;
  background: rgba(255,255,255,.05);
}

@media (max-width: 1100px) {
  .brand-text strong {
    font-size: 14px;
  }
  .nav-chip {
    padding: 7px 11px;
    font-size: 12px;
  }
  .nav-cta {
    padding: 10px 16px;
    font-size: 13px;
  }
}

@media (max-width: 991px) {
  .nav-panel {
    flex-wrap: wrap;
    min-height: auto;
  }
  .nav-links {
    order: 4;
    width: 100%;
    border-top: 1px solid rgba(255,255,255,.07);
    padding-top: 10px;
    margin-top: 2px;
  }
  .nav-links .nav-chip {
    flex: 0 0 auto;
  }
  .menu-toggle {
    margin-left: auto;
  }
}

@media (max-width: 600px) {
  .brand-text small {
    display: none;
  }
  .nav-panel-wrap {
    border-radius: 14px;
  }
  .nav-panel {
    padding: 10px 12px;
  }
  .brand-mark {
    min-width: 34px;
    height: 34px;
    border-radius: 10px;
  }
  .brand-text strong {
    font-size: 13px;
  }
  .nav-links {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .nav-cta {
    display: none;
  }
}

/* ===== buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 999px;
  font-weight: 700;
  line-height: 1.2;
  padding: 14px 28px;
  border: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, color .3s ease, transform .3s ease, box-shadow .3s ease;
  cursor: pointer;
  text-align: center;
}

.btn svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform .3s ease;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-ink);
}

.btn-primary:hover {
  background: var(--primary-strong);
  box-shadow: 0 8px 24px rgba(198,162,121,.3);
  transform: translateY(-2px);
}

.btn-primary:focus-visible {
  outline: 2px solid rgba(198,162,121,.6);
  outline-offset: 4px;
}

.btn-line-light {
  background: transparent;
  color: rgba(255,255,255,.9);
  border-color: rgba(255,255,255,.35);
}

.btn-line-light:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.7);
  transform: translateY(-2px);
}

.btn-ghost-dark {
  background: var(--surface);
  color: var(--ink-strong);
  border-color: var(--line);
}

.btn-ghost-dark:hover {
  border-color: var(--primary);
  color: var(--ink-strong);
  background: #fcfaf7;
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.btn-line-gold {
  background: transparent;
  color: #fff;
  border-color: rgba(198,162,121,.7);
}

.btn-line-gold:hover {
  background: rgba(198,162,121,.12);
  border-color: var(--primary);
}

.btn .arrow {
  transition: transform .3s ease;
}

.btn:hover .arrow {
  transform: translateX(4px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 14px;
}

@media (max-width: 767px) {
  .btn {
    padding: 12px 20px;
  }
  .btn-sm {
    padding: 8px 14px;
  }
}

/* ===== hero ===== */
.category-hero {
  padding: 72px 0 76px;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 10%, rgba(198,162,121,.16), transparent 30%),
    linear-gradient(180deg, #EEEAE4, #F7F5F2);
  border-bottom: 1px solid var(--line);
}

.category-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-muted);
  margin-bottom: 22px;
}

.category-breadcrumb a {
  transition: color .25s;
}

.category-breadcrumb a:hover {
  color: var(--primary);
}

.category-breadcrumb .sep {
  color: var(--line);
  margin: 0 2px;
}

.category-breadcrumb .current {
  color: var(--ink-strong);
  font-weight: 600;
}

.category-hero-grid {
  display: grid;
  grid-template-columns: 1.2fr .9fr;
  gap: 60px;
  align-items: center;
}

.category-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(198,162,121,.14);
  border: 1px solid rgba(198,162,121,.28);
  border-radius: 999px;
  padding: 6px 15px;
  font-size: 13px;
  font-weight: 600;
  color: #8a6434;
  margin-bottom: 20px;
}

.category-eyebrow i {
  font-style: normal;
  font-size: 12px;
  letter-spacing: .1em;
  color: #a98655;
}

.hero-title {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.18;
  font-weight: 800;
  color: var(--ink-strong);
  margin-bottom: 20px;
  letter-spacing: -.02em;
}

.hero-title .gold {
  color: #A9793F;
}

.hero-lead {
  font-size: 17px;
  color: var(--ink-muted);
  max-width: 620px;
  line-height: 1.9;
  margin-bottom: 28px;
}

.hero-note {
  font-size: 13px;
  color: var(--ink-muted);
  border-top: 1px solid var(--line);
  margin-top: 26px;
  padding-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  max-width: 640px;
}

.hero-note span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-note svg {
  width: 14px;
  height: 14px;
  stroke: #A8824E;
  stroke-width: 2;
  fill: none;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* hero gate card */
.gate-card {
  background: #FFFFFF;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,.1);
  position: relative;
  padding: 26px 24px 24px;
  border: 1px solid rgba(198,162,121,.22);
}

.gate-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  opacity: .08;
  pointer-events: none;
  z-index: 0;
}

.gate-card > * {
  position: relative;
  z-index: 1;
}

.gate-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
  margin-bottom: 18px;
}

.gate-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--ink-strong);
}

.online-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #EDF6EF;
  color: #397251;
  font-size: 12px;
  border-radius: 999px;
  padding: 4px 10px;
  font-weight: 600;
}

.online-badge i {
  width: 6px;
  height: 6px;
  background: #4A9C65;
  border-radius: 50%;
}

.gate-status-item {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 0;
  border-bottom: 1px solid #F1EEE8;
}

.gate-status-icon {
  width: 38px;
  height: 38px;
  background: rgba(198,162,121,.16);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.gate-status-icon svg {
  width: 18px;
  height: 18px;
  stroke: #A2763E;
  fill: none;
  stroke-width: 1.8;
}

.gate-status-content {
  display: grid;
  gap: 2px;
  flex: 1;
}

.gate-status-content strong {
  font-size: 14px;
  color: var(--ink-strong);
}

.gate-status-content span {
  font-size: 12px;
  color: var(--ink-muted);
}

.status-flag {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 4px;
  background: #F4F4F2;
  color: var(--ink-muted);
}

.status-flag.gold {
  background: rgba(198,162,121,.15);
  color: #8E6937;
}

.gate-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 18px;
  margin-bottom: 8px;
}

.gate-foot-note {
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: .03em;
}

.gate-verify {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #7A7F87;
}

.gate-verify svg {
  width: 14px;
  height: 14px;
  stroke: #C9A271;
  fill: none;
  stroke-width: 2;
}

@media (max-width: 1023px) {
  .category-hero {
    padding: 48px 0 58px;
  }
  .category-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .gate-card {
    max-width: 560px;
  }
}

@media (max-width: 600px) {
  .hero-title {
    font-size: 30px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .gate-card {
    padding: 20px 18px;
  }
}

/* ===== status-data strip ===== */
.info-data {
  margin-top: 0;
  background: var(--dark-bg);
  color: #fff;
  border-top: 1px solid rgba(198,162,121,.36);
  border-bottom: 1px solid rgba(28,29,33,.9);
  position: relative;
}

.info-data-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.data-item {
  padding: 34px 24px;
  border-left: 1px solid rgba(255,255,255,.07);
  position: relative;
}

.data-item:first-child {
  border-left: 0;
}

.data-label {
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(255,255,255,.48);
  margin-bottom: 8px;
}

.data-value {
  font-size: 20px;
  font-weight: 700;
  color: #F2E6D2;
  line-height: 1.45;
}

.data-sub {
  font-size: 13px;
  color: rgba(255,255,255,.58);
  margin-top: 5px;
}

@media (max-width: 1023px) {
  .info-data-inner {
    grid-template-columns: 1fr 1fr;
  }
  .data-item {
    border-top: 1px solid rgba(255,255,255,.06);
    border-left: 0;
  }
}

@media (max-width: 620px) {
  .info-data-inner {
    grid-template-columns: 1fr;
  }
  .data-item {
    padding: 22px 16px;
  }
}

/* ===== section headings ===== */
.section-head {
  margin-bottom: 48px;
}

.section-head.center {
  text-align: center;
}

.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  color: #A9793F;
  letter-spacing: .16em;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-head h2 {
  font-size: clamp(26px, 3.2vw, 38px);
  color: var(--ink-strong);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -.01em;
}

.section-head p {
  color: var(--ink-muted);
  margin-top: 12px;
  max-width: 690px;
  line-height: 1.9;
}

.section-head.center p {
  margin-left: auto;
  margin-right: auto;
}

/* ===== guide topics ===== */
.topic-section {
  background: var(--surface);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.topic-card {
  background: var(--bg);
  border-radius: 18px;
  padding: 28px 24px;
  border: 1px solid #EEEBE5;
  position: relative;
  overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s ease, border-color .3s;
}

.topic-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(198,162,121,.42);
  background: #FDFCFA;
}

.topic-index {
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  color: #B59270;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.topic-index::after {
  content: "";
  width: 40px;
  height: 1px;
  background: rgba(198,162,121,.4);
  display: block;
}

.topic-icon {
  width: 46px;
  height: 46px;
  background: rgba(198,162,121,.15);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.topic-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: #A2763E;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.topic-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
  margin-bottom: 8px;
  line-height: 1.45;
}

.topic-card p {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.8;
}

.topic-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: #8E6B3C;
  margin-top: 15px;
  transition: gap .3s ease, color .2s;
}

.topic-card:hover .topic-more {
  gap: 9px;
  color: #A9793F;
}

.topic-more svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

@media (max-width: 991px) {
  .topic-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .topic-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== scene section ===== */
.scene-section {
  background: #EFECE7;
}

.scene-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.scene-feature {
  grid-column: span 2;
  background: #232428;
  border-radius: 22px;
  color: #fff;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 280px;
  position: relative;
}

.scene-feature-content {
  padding: 36px 30px;
  z-index: 2;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene-feature-content .label {
  color: var(--primary);
  font-size: 12px;
  letter-spacing: .18em;
  font-weight: 700;
  margin-bottom: 12px;
}

.scene-feature-content h3 {
  font-size: 25px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 14px;
}

.scene-feature-content p {
  color: rgba(255,255,255,.68);
  font-size: 14px;
  line-height: 1.85;
}

.scene-feature-content .btn {
  margin-top: 24px;
  align-self: flex-start;
}

.scene-feature-image {
  background: url('/assets/images/coverpic/cover-3.png') center / cover no-repeat;
  position: relative;
  min-height: 200px;
}

.scene-feature-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(35,36,40,.75), transparent 68%);
  z-index: 1;
}

.scene-cards {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.scene-card {
  flex: 1;
  border-radius: 22px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 25px 24px 20px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  box-shadow: var(--shadow-sm);
}

.scene-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(198,162,121,.56);
}

.scene-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 13px;
}

.scene-card-top strong {
  font-size: 16px;
  color: var(--ink-strong);
  font-weight: 800;
}

.scene-card-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(198,162,121,.13);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scene-card-icon svg {
  width: 19px;
  height: 19px;
  stroke: #9B7440;
  fill: none;
  stroke-width: 1.8;
}

.scene-card p {
  color: var(--ink-muted);
  font-size: 13.5px;
  line-height: 1.8;
}

@media (max-width: 1080px) {
  .scene-wrap {
    grid-template-columns: 1fr 1fr;
  }
  .scene-feature {
    grid-column: 1 / -1;
  }
  .scene-cards {
    flex-direction: row;
    grid-column: 1 / -1;
  }
  .scene-card {
    flex: 1;
  }
}

@media (max-width: 760px) {
  .scene-feature {
    grid-template-columns: 1fr;
  }
  .scene-feature-image {
    min-height: 140px;
  }
  .scene-feature-image::after {
    background: linear-gradient(0deg, rgba(35,36,40,.72), transparent 30%);
  }
  .scene-cards {
    flex-direction: column;
  }
}

/* ===== process section ===== */
.vice-section {
  background: #fff;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: process;
  position: relative;
  margin-bottom: 28px;
}

.process-step {
  background: #F9F7F3;
  border: 1px solid #ECE7DF;
  border-radius: 18px;
  padding: 24px 22px 22px;
  counter-increment: process;
  position: relative;
  transition: transform .35s var(--ease), box-shadow .3s, border-color .3s;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(198,162,121,.46);
}

.process-num {
  font-size: 13px;
  font-weight: 700;
  color: #FFFFFF;
  background: #26272B;
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  margin-bottom: 45px;
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

.process-title {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink-strong);
  margin-bottom: 8px;
}

.process-title::after {
  content: "";
  display: block;
  width: 24px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
  margin-top: 12px;
  margin-bottom: 10px;
}

.process-detail {
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-muted);
}

.process-arrow {
  font-size: 24px;
  color: #C9A99F;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 991px) {
  .process-steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}

/* ===== compare ===== */
.compare-section {
  background: var(--bg);
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 18px;
  align-items: stretch;
  perspective: 1200px;
}

.compare-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.compare-card.highlight {
  background: #242529;
  color: #fff;
  border-color: rgba(198,162,121,.56);
  box-shadow: 0 20px 45px rgba(30,26,20,.2);
  margin: -8px 0 8px;
  padding: 36px 26px;
}

.plan-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 4px 10px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 15px;
}

.compare-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}

.compare-card > p {
  margin-bottom: 22px;
  line-height: 1.75;
  min-height: 52px;
  font-size: 13px;
  color: var(--ink-muted);
}

.compare-card.highlight > p {
  color: rgba(255,255,255,.65);
}

.compare-card ul {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}

.compare-card li {
  display: flex;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-body);
}

.compare-card.highlight li {
  color: rgba(255,255,255,.86);
}

.compare-card li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 4px;
  stroke: #B08A55;
  stroke-width: 2;
  fill: none;
}

.compare-card.highlight li svg {
  stroke: var(--primary-strong);
}

.compare-cta {
  margin-top: auto;
}

.card-foot {
  font-size: 11px;
  color: #aaa;
  text-align: center;
  margin-top: 16px;
}

@media (max-width: 900px) {
  .compare-grid {
    grid-template-columns: 1fr;
    max-width: 560px;
    margin: auto;
  }
  .compare-card.highlight {
    margin: 0;
  }
}

/* ===== media card ===== */
.support-band {
  background: #1E1F23;
  padding: 72px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.support-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') center top / cover;
  opacity: .12;
}

.support-band-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items: center;
}

.support-band h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
}

.support-band .lead {
  color: rgba(255,255,255,.67);
  font-size: 15px;
  max-width: 560px;
  line-height: 1.85;
  margin-bottom: 22px;
}

.support-band-note {
  color: rgba(255,255,255,.42);
  font-size: 12px;
  border-left: 2px solid var(--primary);
  padding-left: 12px;
}

.support-list-card {
  background: #292A2F;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  padding: 24px;
  display: grid;
  gap: 16px;
}

.support-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: rgba(255,255,255,.04);
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 14px;
  color: rgba(255,255,255,.82);
  border: 1px solid transparent;
  transition: border-color .3s, background .3s;
}

.support-line:hover {
  background: rgba(255,255,255,.07);
  border-color: rgba(198,162,121,.28);
}

.support-line .name {
  display: flex;
  align-items: center;
  gap: 10px;
}

.support-line .name svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 2;
}

.support-line .status {
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(85,139,108,.2);
  color: #9AD7AE;
  border: 1px solid rgba(85,139,108,.26);
  white-space: nowrap;
}

@media (max-width: 900px) {
  .support-band-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== faq ===== */
.faq-section {
  background: #FCFBF9;
}

.faq-wrap {
  max-width: 900px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s;
}

.faq-item:hover {
  border-color: rgba(198,162,121,.46);
}

.faq-item.open {
  border-color: rgba(198,162,121,.65);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 19px 22px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-strong);
  line-height: 1.6;
  cursor: pointer;
  transition: color .25s;
}

.faq-question:hover {
  color: #9B7440;
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid #DAD4CB;
  position: relative;
  transition: transform .4s var(--ease), background .3s, border-color .3s;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: #9A7442;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: opacity .3s;
}

.faq-icon::before {
  width: 10px;
  height: 1.5px;
}

.faq-icon::after {
  width: 1.5px;
  height: 10px;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
  background: rgba(198,162,121,.16);
  border-color: var(--primary);
}

.faq-item.open .faq-icon::after {
  opacity: 0;
}

.faq-answer-box {
  overflow: hidden;
  max-height: 0;
  transition: max-height .4s ease;
}

.faq-answer {
  padding: 0 22px 20px;
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 2;
  border-top: 0 dashed transparent;
}

.faq-item.open .faq-answer-box {
  max-height: 300px;
}

@media (min-width: 768px) {
  .faq-item.open .faq-answer-box {
    max-height: 260px;
  }
}

/* ===== cta form ===== */
.register-section {
  background: #191A1E;
  padding: 88px 0;
  color: #fff;
  position: relative;
}

.register-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: .08;
}

.register-box {
  position: relative;
  z-index: 1;
  max-width: 1040px;
  margin: auto;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 24px;
  padding: 48px 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  backdrop-filter: blur(6px);
}

.register-intro h3 {
  font-size: 29px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
  color: #fff;
}

.register-intro h3 span {
  color: var(--primary);
}

.register-intro p {
  color: rgba(255,255,255,.66);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 22px;
}

.register-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 12px;
}

.register-feature {
  font-size: 13px;
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: rgba(255,255,255,.76);
}

.register-feature svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  stroke: var(--primary);
  stroke-width: 2;
  fill: none;
}

.register-form {
  background: rgba(0,0,0,.24);
  padding: 32px 30px 26px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.08);
}

.form-field {
  margin-bottom: 18px;
}

.form-field label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-bottom: 4px;
}

.form-field label em {
  font-style: normal;
  color: #BC8C64;
}

.form-field input,
.form-field select {
  width: 100%;
  background: transparent;
  border: 0;
  border-bottom: 1px solid rgba(255,255,255,.25);
  padding: 9px 2px;
  color: #fff;
  font-size: 16px;
  border-radius: 0;
  outline: none;
}

.form-field select option {
  color: #111;
}

.form-field input::placeholder {
  color: rgba(255,255,255,.35);
}

.form-field input:focus,
.form-field select:focus {
  border-bottom: 2px solid var(--primary);
}

.form-submit {
  width: 100%;
  background: linear-gradient(120deg, #D2AC80, #BA8B57);
  color: #17181B;
  font-weight: 800;
  padding: 13px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 15px;
  transition: background .3s ease, transform .3s ease, box-shadow .3s;
}

.form-submit:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(198,162,121,.25);
}

.form-footnote {
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255,255,255,.35);
  text-align: center;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .register-box {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
}

@media (max-width: 600px) {
  .register-section {
    padding: 56px 0;
  }
  .register-box {
    padding: 22px 18px;
  }
}

/* ===== final data CTA ===== */
.final-cta-band {
  background: #141518;
  padding: 72px 0;
  color: #fff;
  position: relative;
  text-align: center;
}

.final-cta-inner {
  max-width: 780px;
  margin: 0 auto;
}

.final-cta-inner .small-label {
  color: var(--primary);
  font-size: 13px;
  letter-spacing: .2em;
  font-weight: 700;
  margin-bottom: 14px;
}

.final-cta-inner h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 18px;
}

.final-cta-inner p {
  color: rgba(255,255,255,.62);
  line-height: 1.9;
  font-size: 14px;
  margin-bottom: 28px;
}

.final-cta-inner .btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* ===== footer ===== */
.site-footer {
  background: #0F1013;
  color: rgba(255,255,255,.7);
  border-top: 2px solid rgba(198,162,121,.34);
  padding: 62px 0 28px;
}

.footer-brand {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 26px;
  margin-bottom: 38px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  padding-bottom: 34px;
  flex-wrap: wrap;
}

.brand.footer-brand-inner {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
}

.footer-desc {
  max-width: 360px;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(255,255,255,.48);
  margin-left: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 42px;
}

.footer-grid h4 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-grid ul {
  display: grid;
  gap: 9px;
}

.footer-grid a {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  transition: color .3s ease, padding-left .3s ease;
}

.footer-grid a:hover {
  color: var(--primary-strong);
}

.footer-copy {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 22px;
  font-size: 12px;
  color: rgba(255,255,255,.34);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 28px;
  }
  .footer-desc {
    margin-left: 0;
    flex: 1 1 100%;
  }
}

@media (max-width: 700px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 26px;
  }
  .footer-copy {
    flex-direction: column;
  }
}

/* ===== utilities / animation ===== */
.fade-up {
  opacity: 0;
  transform: translateY(14px);
  animation: fadeUp .7s forwards;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

/* back to top */
.backtop {
  position: fixed;
  right: 20px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  background: #E5DBCC;
  border: 1px solid rgba(198,162,121,.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #2A2320;
  box-shadow: var(--shadow-hover);
  transition: transform .3s ease, background .3s;
  z-index: 99;
}

.backtop:hover {
  background: var(--primary);
  transform: translateY(-4px);
}

.backtop svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* roulang page: category2 */
:root {
            --bg: #F5F3F0;
            --surface: #FFFFFF;
            --ink-strong: #121315;
            --ink-body: #22242A;
            --ink-muted: #5F636C;
            --line: #E3DFD8;
            --primary: #C6A279;
            --primary-strong: #D5B48E;
            --primary-ink: #141518;
            --dark-bg: #17181B;
            --dark-surface: #1F2125;
            --success: #558B6C;
            --warning: #B8843D;
            --error: #B85C47;
            --focus-ring: rgba(198, 162, 121, 0.45);
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-default: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.07), 0 2px 6px rgba(0, 0, 0, 0.04);
            --container-width: 1200px;
            --spacer-section: 96px;
            --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            background: var(--bg);
            color: var(--ink-body);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            display: block;
            background: #EDEBE6;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }

        input,
        select {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ 顶部状态条 ============ */
        .top-pagebar {
            background: var(--primary-ink);
            color: rgba(255, 255, 255, 0.8);
            font-size: 13px;
            min-height: 36px;
            display: flex;
            align-items: center;
            letter-spacing: 0.02em;
        }
        .top-pagebar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            width: 100%;
        }
        .top-pagebar .status-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            margin-right: 8px;
            vertical-align: middle;
        }

        /* ============ 导航卡片面板 ============ */
        .nav-wrapper {
            position: sticky;
            top: 0;
            z-index: 100;
            padding: 12px 0 4px;
            background: transparent;
        }
        .nav-panel {
            background: var(--dark-bg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 999px;
            padding: 8px 12px;
            display: flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
            max-width: 960px;
            margin: 0 auto;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }
        .nav-panel .brand-chunk {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.02em;
            padding-right: 8px;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-panel .brand-chunk .brand-glyph {
            width: 36px;
            height: 36px;
            background: var(--primary);
            color: var(--primary-ink);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 15px;
            margin-right: 4px;
        }
        .nav-panel .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            color: rgba(255, 255, 255, 0.72);
            font-size: 14px;
            font-weight: 500;
            transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .nav-panel .nav-chip svg {
            width: 17px;
            height: 17px;
            fill: none;
            stroke: currentColor;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
            flex-shrink: 0;
        }
        .nav-panel .nav-chip:hover {
            background: var(--primary);
            color: var(--primary-ink);
            transform: translateY(-1px);
        }
        .nav-panel .nav-chip:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .nav-panel .nav-chip.is-active {
            background: var(--primary);
            color: var(--primary-ink);
        }
        .nav-cta {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn-primary-mini {
            background: var(--primary);
            color: var(--primary-ink);
            border-radius: 999px;
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
            white-space: nowrap;
        }
        .btn-primary-mini:hover {
            background: var(--primary-strong);
            box-shadow: 0 4px 12px rgba(198, 162, 121, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary-mini:focus-visible {
            outline: 2px solid var(--primary-strong);
            outline-offset: 2px;
        }
        .mobile-nav-toggle {
            display: none;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 50%;
            width: 38px;
            height: 38px;
            align-items: center;
            justify-content: center;
            color: #fff;
            margin-left: auto;
            flex-shrink: 0;
            transition: background 0.25s ease;
        }
        .mobile-nav-toggle svg {
            width: 20px;
            height: 20px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
        }

        /* 移动端抽屉 */
        .mobile-drop {
            display: none;
            position: fixed;
            top: 64px;
            left: 12px;
            right: 12px;
            background: var(--dark-bg);
            border-radius: 20px;
            padding: 18px;
            box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 120;
        }
        .mobile-drop.is-open {
            display: block;
        }
        .mobile-drop a.mobile-link {
            display: flex;
            align-items: center;
            gap: 12px;
            color: rgba(255, 255, 255, 0.82);
            padding: 13px 16px;
            border-radius: 14px;
            font-size: 15px;
            font-weight: 500;
            transition: background 0.2s ease;
        }
        .mobile-drop a.mobile-link:hover {
            background: rgba(255, 255, 255, 0.06);
        }
        .mobile-drop a.mobile-link.is-active {
            background: var(--primary);
            color: var(--primary-ink);
        }

        @media (max-width: 900px) {
            .nav-panel {
                border-radius: 24px;
                padding: 6px 6px 6px 12px;
                gap: 2px;
            }
            .nav-panel .nav-chip {
                padding: 8px 10px;
            }
            .nav-panel .nav-chip span {
                font-size: 13px;
            }
            .nav-panel .nav-chip svg {
                width: 16px;
                height: 16px;
            }
            .nav-panel .brand-chunk .brand-glyph {
                width: 28px;
                height: 28px;
                border-radius: 10px;
                font-size: 13px;
            }
            .nav-panel .brand-chunk span.text-hide {
                display: none;
            }
            .btn-primary-mini span.tt-hide {
                display: none;
            }
        }

        @media (max-width: 680px) {
            .nav-wrapper {
                padding: 10px 8px 0;
            }
            .nav-panel {
                border-radius: 20px;
                padding: 6px 8px;
                overflow-x: auto;
                scrollbar-width: none;
                -ms-overflow-style: none;
                gap: 0;
            }
            .nav-panel .brand-chunk {
                padding-right: 6px;
                flex-shrink: 0;
            }
            .nav-panel .brand-chunk span.brand-name {
                display: none;
            }
            .nav-panel .brand-chunk .brand-glyph {
                width: 30px;
                height: 30px;
                border-radius: 10px;
                font-size: 14px;
                margin: 0;
            }
            .nav-panel .nav-chip {
                padding: 7px 12px;
                font-size: 13px;
                flex-shrink: 0;
            }
            .nav-cta {
                display: none;
            }
        }

        /* ============ 分类页首屏标题区 ============ */
        .category-hero {
            position: relative;
            background: var(--surface);
            border-bottom: 1px solid var(--line);
            padding: 72px 0 56px;
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 40%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
            border-radius: 0 0 0 48px;
        }
        .category-hero .container {
            position: relative;
            z-index: 2;
        }
        .category-hero .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(198, 162, 121, 0.14);
            color: #8a6f4e;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.03em;
            margin-bottom: 20px;
        }
        .category-hero h1 {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--ink-strong);
            max-width: 760px;
            letter-spacing: -0.01em;
        }
        .category-hero .category-lead {
            margin-top: 18px;
            font-size: 17px;
            color: var(--ink-muted);
            max-width: 640px;
            line-height: 1.8;
        }
        .category-hero .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--line);
            flex-wrap: wrap;
        }
        .category-hero .hero-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .category-hero .stat-number {
            font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
            font-size: 28px;
            font-weight: 700;
            color: var(--ink-strong);
            line-height: 1.2;
        }
        .category-hero .stat-label {
            font-size: 13px;
            color: var(--ink-muted);
            margin-top: 4px;
        }

        /* 内容卡片系统 */
        .content-section {
            padding: 72px 0;
        }
        .content-section .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
            gap: 24px;
            flex-wrap: wrap;
        }
        .content-section .section-head h2 {
            font-size: 30px;
            font-weight: 800;
            color: var(--ink-strong);
            letter-spacing: -0.01em;
            line-height: 1.3;
        }
        .content-section .section-head .head-desc {
            color: var(--ink-muted);
            font-size: 14px;
            max-width: 420px;
            margin-top: 8px;
        }

        /* 内容卡片主网格 */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .guide-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: transform 0.3s var(--ease-out), box-shadow 0.3s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(198, 162, 121, 0.7);
        }
        .guide-card:focus-within {
            outline: 2px solid var(--focus-ring);
            outline-offset: 4px;
        }
        .guide-card .card-topline {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }
        .guide-card .card-index {
            font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.08em;
        }
        .guide-card .card-cat {
            background: #F1EDE7;
            color: var(--ink-muted);
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
        }
        .guide-card .card-section-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            background: rgba(198, 162, 121, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }
        .guide-card .card-section-icon svg {
            width: 22px;
            height: 22px;
            stroke: #8a6f4e;
            fill: none;
            stroke-width: 1.8;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .guide-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 12px;
            line-height: 1.45;
            letter-spacing: -0.01em;
        }
        .guide-card p {
            font-size: 15px;
            color: var(--ink-muted);
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card .card-meta-list {
            list-style: none;
            margin: 0;
            padding: 0;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }
        .guide-card .card-meta-list li {
            font-size: 14px;
            color: var(--ink-body);
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 4px 0;
        }
        .guide-card .card-meta-list li::before {
            content: "";
            width: 5px;
            height: 5px;
            background: var(--primary);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .guide-card .btn-line-link {
            margin-top: 20px;
            display: inline-flex;
            align-items: center;
            gap: 5px;
            color: var(--ink-strong);
            font-weight: 600;
            font-size: 14px;
            transition: gap 0.25s ease, color 0.25s ease;
            border-top: 1px solid var(--line);
            padding-top: 18px;
        }
        .guide-card .btn-line-link svg {
            width: 17px;
            height: 17px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
            transition: transform 0.25s ease;
        }
        .guide-card .btn-line-link:hover {
            color: var(--primary);
            gap: 10px;
        }
        .guide-card .btn-line-link:hover svg {
            transform: translateX(3px);
        }

        .card-lg {
            grid-column: span 6;
        }
        .card-md {
            grid-column: span 3;
        }
        .card-xs {
            grid-column: span 4;
        }

        /* 双栏操作流程 */
        .process-panel {
            background: var(--dark-bg);
            border-radius: 28px;
            padding: 64px 56px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .process-panel::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.15;
            pointer-events: none;
        }
        .process-panel .panel-content {
            position: relative;
            z-index: 2;
            max-width: 620px;
        }
        .process-panel .panel-kicker {
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .process-panel h2 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.3;
        }
        .process-panel .lead-text {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .process-steps {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0;
        }
        .process-steps li {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .process-steps li:last-child {
            border-bottom: none;
        }
        .process-steps .step-num {
            flex-shrink: 0;
            width: 38px;
            height: 38px;
            background: rgba(198, 162, 121, 0.15);
            border: 1px solid rgba(198, 162, 121, 0.4);
            color: var(--primary-strong);
            font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
            font-size: 14px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .process-steps .step-content {
            flex: 1;
        }
        .process-steps .step-content h3 {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .process-steps .step-content p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        /* 场景卡片区 */
        .scenario-section {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 32px;
        }
        .scenario-card {
            background: #fff;
            border-radius: 18px;
            border: 1px solid var(--line);
            padding: 30px 28px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scenario-card .image-placeholder {
            height: 130px;
            background: #EFECE7;
            border-radius: 12px;
            margin-bottom: 20px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .scenario-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--ink-strong);
            margin-bottom: 10px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--ink-muted);
            line-height: 1.75;
            flex: 1;
        }
        .scenario-card .status-chip {
            align-self: flex-start;
            margin-top: 18px;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            background: #EBF4EF;
            color: #3C7254;
            font-weight: 600;
        }

        /* 信息表格 */
        .info-compare {
            border-radius: 20px;
            overflow: hidden;
            background: #fff;
            border: 1px solid var(--line);
        }
        .info-compare table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .info-compare th {
            background: #F7F5F2;
            color: var(--ink-strong);
            font-weight: 700;
            padding: 16px 20px;
            text-align: left;
        }
        .info-compare td {
            padding: 16px 20px;
            border-top: 1px solid var(--line);
            color: var(--ink-body);
        }
        .info-compare td:first-child {
            font-weight: 600;
            color: var(--ink-strong);
        }
        .info-compare .browser-icon {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* FAQ */
        .faq-zone {
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--line);
            padding: 40px;
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            padding: 8px 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 0;
            font-size: 17px;
            font-weight: 700;
            color: var(--ink-strong);
            cursor: pointer;
            gap: 24px;
            border: none;
            background: none;
            text-align: left;
            width: 100%;
            transition: color 0.2s ease;
        }
        .faq-q:hover {
            color: #8a6f4e;
        }
        .faq-q .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(198, 162, 121, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            transition: transform 0.3s ease, background 0.3s ease;
        }
        .faq-q .faq-icon svg {
            width: 14px;
            height: 14px;
            stroke: #8a6f4e;
            stroke-width: 2;
            fill: none;
            transition: transform 0.3s ease;
        }
        .faq-q[aria-expanded="true"] .faq-icon svg {
            transform: rotate(45deg);
        }
        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            padding: 0 40px 0 0;
        }
        .faq-a p {
            color: var(--ink-muted);
            font-size: 15px;
            line-height: 1.8;
            padding-bottom: 20px;
        }

        /* CTA + 返回 */
        .cta-band {
            background: var(--dark-bg);
            border-radius: 28px;
            padding: 56px 48px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-top: 48px;
        }
        .cta-band .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
        }
        .cta-band .cta-desc {
            color: rgba(255, 255, 255, 0.6);
            margin-top: 8px;
            font-size: 15px;
        }
        .cta-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-gold {
            background: var(--primary);
            color: var(--primary-ink);
            font-weight: 700;
            padding: 12px 28px;
            font-size: 15px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
        }
        .btn-gold:hover {
            background: var(--primary-strong);
            box-shadow: 0 8px 20px rgba(198, 162, 121, 0.25);
            transform: translateY(-2px);
        }
        .btn-gold svg {
            width: 16px;
            height: 16px;
            fill: none;
            stroke: currentColor;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .btn-light-outline {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            font-weight: 500;
            padding: 11px 26px;
            font-size: 14px;
            border-radius: 999px;
            transition: background 0.25s ease, border-color 0.25s ease;
        }
        .btn-light-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.4);
        }

        /* 页脚 */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 28px;
            border-top: 1px solid rgba(198, 162, 121, 0.5);
        }
        .site-footer .brand {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
        }
        .site-footer .brand-mark {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: var(--primary-ink);
            border-radius: 14px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
        }
        .site-footer .brand-text {
            display: flex;
            flex-direction: column;
        }
        .footer-brand {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
            gap: 16px;
        }
        .footer-desc {
            font-size: 14px;
            max-width: 280px;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.6;
            margin-left: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            padding: 44px 0 36px;
        }
        .footer-grid h4 {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-grid ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-grid ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease;
        }
        .footer-grid ul a:hover {
            color: var(--primary);
        }
        .footer-copy {
            display: flex;
            justify-content: space-between;
            padding-top: 22px;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
            flex-wrap: wrap;
            gap: 12px;
        }

        /* 响应式 */
        @media (max-width: 1023px) {
            .card-lg {
                grid-column: span 6;
            }
            .card-md {
                grid-column: span 6;
            }
            .card-xs {
                grid-column: span 6;
            }
            .scenario-section {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero h1 {
                font-size: 40px;
            }
        }
        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .content-section {
                padding: 48px 0;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero::before {
                width: 100%;
                opacity: 0.08;
                border-radius: 0;
            }
            .category-hero h1 {
                font-size: 31px;
            }
            .category-hero .category-lead {
                font-size: 15px;
            }
            .category-hero .hero-stats {
                gap: 20px;
            }
            .card-lg,
            .card-md,
            .card-xs {
                grid-column: span 12;
            }
            .scenario-section {
                grid-template-columns: 1fr;
            }
            .process-panel {
                padding: 36px 22px;
                border-radius: 20px;
            }
            .process-panel h2 {
                font-size: 24px;
            }
            .process-steps li {
                gap: 14px;
            }
            .faq-zone {
                padding: 22px;
            }
            .cta-band {
                padding: 36px 24px;
                border-radius: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .footer-brand {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-desc {
                margin-left: 52px;
            }
            .footer-copy {
                align-items: flex-start;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
            }
        }

/* roulang page: category3 */
:root {
  --bg: #F5F3F0;
  --surface: #FFFFFF;
  --surface-soft: #FBF0E6;
  --ink-strong: #121315;
  --ink-body: #22242A;
  --ink-muted: #5F636C;
  --line: #E3DFD8;
  --primary: #C6A279;
  --primary-strong: #D5B48E;
  --primary-ink: #141518;
  --dark-bg: #17181B;
  --dark-surface: #1F2125;
  --success: #558B6C;
  --warning: #B8843D;
  --error: #B85C47;
  --focus-ring: rgba(198,162,121,0.45);
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.07), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-dark: 0 10px 30px rgba(0,0,0,0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, "SF Pro SC", "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  color: var(--ink-body);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }
button, input { font: inherit; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }

.skip-link { position: absolute; left: -9999px; top: 0; background: #fff; padding: 10px 18px; border-radius: 10px; z-index: 999; }
.skip-link:focus { left: 16px; top: 16px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 92px 0; }
.section-dark { background: var(--dark-bg); }
.bg-soft { background: #ECE8E1; }

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: .18em;
  color: #A97C50;
  font-weight: 600;
  margin-bottom: 16px;
}
.section-kicker::before { content: ""; width: 24px; height: 1px; background: var(--primary); }
.section-title { font-size: clamp(26px, 4vw, 40px); font-weight: 800; color: var(--ink-strong); line-height: 1.24; letter-spacing: -0.01em; }
.section-lead { max-width: 760px; margin-top: 14px; color: var(--ink-muted); font-size: 16px; }
.head-center { text-align: center; }
.head-center .section-kicker { justify-content: center; }
.head-center .section-kicker::before, .head-center .section-kicker::after { content: ""; width: 24px; height: 1px; background: var(--primary); }
.head-center .section-lead { margin-left: auto; margin-right: auto; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  padding: 13px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .25s ease, color .25s ease, border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(1px); }
.btn-gold { background: var(--primary); color: var(--primary-ink); }
.btn-gold:hover { background: var(--primary-strong); box-shadow: 0 8px 18px rgba(198,162,121, .3); }
.btn-light-outline { border-color: rgba(255,255,255,.62); color: #fff; background: rgba(255,255,255,.02); }
.btn-light-outline:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.btn-white { background: #fff; color: var(--ink-strong); }
.btn-white:hover { background: var(--primary); color: var(--primary-ink); }

/* top strip */
.top-strip { background: #101114; color: rgba(255,255,255,.72); font-size: 13px; border-bottom: 1px solid rgba(255,255,255,.05); padding: 8px 0; }
.top-strip-inner { display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 4px rgba(85,139,108,.16); margin-right: 8px; vertical-align: 1px; }
.top-tag { color: var(--primary-strong); }
@media (max-width: 700px) {
  .top-strip .top-strip-inner { justify-content: center; }
  .top-strip .strip-right { display: none; }
}

/* brand */
.site-header-wrap { position: relative; z-index: 100; padding: 16px 0 14px; }
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: linear-gradient(180deg, #1D1F24 0%, #141518 100%);
  border: 1px solid rgba(255,255,255,.08);
  border-top: 1px solid rgba(198,162,121,.45);
  box-shadow: var(--shadow-dark);
  border-radius: var(--radius);
  padding: 12px 14px 12px 18px;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: fit-content; }
.brand-mark {
  width: 48px; height: 48px; flex: 0 0 48px; border-radius: 16px;
  background: linear-gradient(135deg, #D5B48E, #A97C50);
  color: #161616; display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 18px; letter-spacing: -.02em;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.45);
}
.brand-text { color: #fff; display: block; line-height: 1.25; }
.brand-text strong { font-size: 18px; font-weight: 800; letter-spacing: .02em; display: block; }
.brand-text small { color: rgba(255,255,255,.48); font-size: 11px; display: block; margin-top: 3px; letter-spacing: .12em; }
.header-cta { display: flex; align-items: center; gap: 10px; }

/* nav panel */
.nav-panel {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.06);
  padding: 7px 9px;
  border-radius: 18px;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-panel::-webkit-scrollbar { display: none; }
.nav-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 64px;
  padding: 9px 8px 7px;
  border-radius: 14px;
  color: rgba(255,255,255,.64);
  font-size: 12.5px;
  line-height: 1;
  letter-spacing: .05em;
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
  text-align: center;
}
.nav-chip svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.nav-chip span { white-space: nowrap; }
.nav-chip:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav-chip.is-active {
  color: var(--primary-strong);
  background: rgba(198,162,121,.16);
  box-shadow: inset 0 0 0 1px rgba(198,162,121,.25);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.08);
  color: #fff;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.menu-toggle span { width: 18px; height: 2px; background: #fff; border-radius: 4px; transition: transform .3s ease, opacity .3s ease; }
.site-header.nav-open .menu-toggle span:first-child { transform: translateY(3.5px) rotate(45deg); }
.site-header.nav-open .menu-toggle span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero */
.hero {
  position: relative;
  background: linear-gradient(110deg, rgba(15,17,21,.92) 0%, rgba(15,17,21,.7) 48%, rgba(30,35,43,.52) 100%), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color: #fff;
  padding: 110px 0 100px;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -8%; bottom: -30%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(198,162,121,.2) 0%, transparent 70%);
  pointer-events: none;
}
.hero-container { display: grid; grid-template-columns: 1.12fr .88fr; gap: 60px; align-items: center; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-strong);
  font-size: 14px;
  letter-spacing: .16em;
  padding: 7px 16px;
  border: 1px solid rgba(198,162,121,.4);
  border-radius: 999px;
  background: rgba(198,162,121,.08);
  margin-bottom: 26px;
  white-space: nowrap;
}
.hero h1 { font-size: clamp(36px, 5vw, 62px); line-height: 1.16; font-weight: 800; letter-spacing: -.02em; color: #fff; margin-bottom: 8px; }
.hero h1 .h1-mark { color: var(--primary-strong); }
.hero h1 .h1-sub { display: block; font-size: .6em; letter-spacing: .08em; margin-top: 16px; color: rgba(255,255,255,.92); }
.hero-lead { margin-top: 26px; max-width: 660px; color: rgba(255,255,255,.72); font-size: 17px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.14);
  font-size: 13px;
  color: rgba(255,255,255,.86);
}
.meta-item svg { width: 16px; height: 16px; stroke: var(--primary-strong); fill: none; stroke-width: 1.8; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }

.entry-card {
  position: relative;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 26px;
  padding: 26px 24px 22px;
  box-shadow: 0 14px 40px rgba(0,0,0,.22);
}
.entry-card .card-topline { display: flex; justify-content: space-between; align-items: center; color: rgba(255,255,255,.72); font-size: 13px; margin-bottom: 22px; }
.entry-card .live-chip { color: var(--primary-strong); background: rgba(198,162,121,.12); border: 1px solid rgba(198,162,121,.3); border-radius: 999px; padding: 5px 12px; font-size: 12px; }
.entry-title { font-size: 22px; font-weight: 800; color: #fff; line-height: 1.4; margin-top: 4px; }
.entry-sub { font-size: 14px; color: rgba(255,255,255,.72); margin-top: 12px; }
.entry-list { border-top: 1px solid rgba(255,255,255,.14); margin-top: 22px; padding-top: 18px; display: grid; gap: 12px; }
.entry-list li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,.85); }
.entry-list li svg { width: 16px; height: 16px; stroke: var(--primary-strong); fill: none; stroke-width: 1.8; flex: 0 0 16px; }
.entry-card .card-action { display: inline-flex; align-items: center; gap: 8px; margin-top: 20px; color: var(--primary-strong); font-size: 14px; font-weight: 600; }
.entry-card .card-action svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; }

/* feature mosaic */
.feature-mosaic { display: grid; grid-template-columns: 1.08fr .92fr; gap: 24px; margin-top: 44px; }
.mosaic-primary, .mosaic-card {
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.mosaic-primary:hover, .mosaic-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(198,162,121,.5); }
.mosaic-media { height: 220px; background: #e2ded8; overflow: hidden; }
.mosaic-primary .mosaic-media { height: 100%; min-height: 280px; }
.mosaic-primary { display: grid; grid-template-columns: 1fr 1.08fr; align-items: stretch; }
.mosaic-body { padding: 28px; display: flex; flex-direction: column; gap: 14px; }
.mosaic-card .mosaic-body { min-height: 210px; }
.tagline { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 999px; background: #F1E4D7; color: #855a2b; font-size: 12px; font-weight: 700; letter-spacing: .06em; width: fit-content; }
.mosaic-body h3 { font-size: 22px; line-height: 1.4; font-weight: 800; color: var(--ink-strong); }
.mosaic-body p { font-size: 14.5px; color: var(--ink-muted); flex: 1; }
.mosaic-link { display: inline-flex; align-items: center; gap: 6px; color: #A67B42; font-weight: 600; font-size: 14px; width: fit-content; }
.mosaic-link svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 2; }
.mosaic-stack { display: grid; gap: 24px; }
.mosaic-media img, .mosaic-media picture, .mosaic-media img[src] { width: 100%; height: 100%; object-fit: cover; }

/* modes */
.mode-grid { margin-top: 46px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.mode-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px 26px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.mode-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.mode-card .num { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 12px; color: var(--primary); font-weight: 700; margin-bottom: 6px; letter-spacing: .18em; }
.mode-card h3 { font-size: 19px; font-weight: 800; color: var(--ink-strong); margin-bottom: 12px; line-height: 1.4; }
.mode-card p { font-size: 14px; color: var(--ink-muted); }
.mode-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.mode-tags span { font-size: 12px; color: #8A6B45; background: #F5ECDF; border-radius: 999px; padding: 5px 12px; }

/* quick compare */
.quick-compare { margin-top: 46px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.compare-item {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  align-items: center;
  box-shadow: var(--shadow-sm);
  transition: border-color .25s ease, box-shadow .25s ease;
}
.compare-item:hover { border-color: rgba(198,162,121,.55); box-shadow: var(--shadow-hover); }
.compare-left { display: grid; gap: 8px; }
.compare-left strong { display: block; font-size: 16px; color: var(--ink-strong); line-height: 1.4; }
.compare-left span { font-size: 13px; color: var(--primary); background: #F7EBDF; border-radius: 999px; padding: 4px 10px; width: fit-content; }
.compare-item p { font-size: 14px; color: var(--ink-muted); }

/* steps */
.steps { margin-top: 52px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px 22px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  top: 18px;
  right: 18px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
  color: rgba(198,162,121,.28);
}
.step h3 { font-size: 18px; color: var(--ink-dark, #17181B); font-weight: 800; padding-right: 36px; margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--ink-muted); }

/* faq */
.faq-list { max-width: 940px; margin: 46px auto 0; display: grid; gap: 14px; }
details.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  transition: border-color .3s ease;
}
details.faq-item[open] { border-color: rgba(198,162,121,.6); box-shadow: var(--shadow-sm); }
details.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 26px;
  font-weight: 700;
  color: var(--ink-strong);
  font-size: 16px;
  line-height: 1.5;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item .faq-icon {
  position: relative;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #F6F4F1;
  transition: transform .3s ease, background .3s ease, border-color .3s ease;
}
details.faq-item .faq-icon::before, details.faq-item .faq-icon::after { content: ""; position: absolute; left: 50%; top: 50%; translate: -50% -50%; background: var(--ink-strong); border-radius: 2px; }
details.faq-item .faq-icon::before { width: 11px; height: 1.5px; }
details.faq-item .faq-icon::after { width: 1.5px; height: 11px; }
details.faq-item[open] .faq-icon { transform: rotate(135deg); background: var(--primary); border-color: var(--primary); }
details.faq-item[open] .faq-icon::before, details.faq-item[open] .faq-icon::after { background: var(--primary-ink); }
.faq-answer { padding: 4px 26px 24px; color: var(--ink-muted); font-size: 15px; line-height: 1.8; max-width: 860px; }

/* dark CTA */
.cta-band {
  position: relative;
  background: linear-gradient(145deg, rgba(15,17,21,.94) 0%, rgba(31,33,37,.93) 100%), url('/assets/images/backpic/back-2.webp') center/cover;
  border-top: 1px solid rgba(198,162,121,.25);
  color: #fff;
  text-align: center;
  padding: 96px 0;
}
.cta-band .cta-title { font-size: clamp(26px, 4vw, 42px); font-weight: 800; max-width: 800px; margin: 12px auto 0; line-height: 1.3; }
.cta-band .cta-safe-title { color: var(--primary-strong); }
.cta-band p { max-width: 720px; margin: 20px auto 0; color: rgba(255,255,255,.76); font-size: 16px; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 38px; }
.cta-actions .btn { min-width: 190px; }

/* footer */
.site-footer { background: #101114; color: rgba(255,255,255,.68); padding: 76px 0 0; border-top: 1px solid rgba(198,162,121,.36); }
.footer-brand { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 28px; }
.footer-brand .brand-text small { color: rgba(255,255,255,.38); }
.footer-desc { max-width: 400px; text-align: right; font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.7; }
.footer-grid { display: grid; grid-template-columns: 1fr 1.1fr 1.1fr 1.4fr; gap: 28px; padding: 30px 0; border-top: 1px solid rgba(255,255,255,.08); }
.footer-grid h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.footer-grid a { display: inline-flex; padding: 5px 0; color: rgba(255,255,255,.6); font-size: 14px; transition: color .2s ease, transform .2s ease; }
.footer-grid a:hover { color: var(--primary-strong); transform: translateX(2px); }
.footer-copy { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 20px 0 26px; color: rgba(255,255,255,.38); font-size: 12.5px; border-top: 1px solid rgba(255,255,255,.08); }
.footer-copy a { color: rgba(255,255,255,.5); }
.footer-copy a:hover { color: var(--primary-strong); }

/* responsive */
@media (max-width: 1260px) {
  .site-header { gap: 12px; flex-wrap: wrap; }
  .nav-panel { overflow-x: auto; max-width: 100%; }
  .header-cta { margin-left: auto; }
  .hero-container { gap: 36px; }
}
@media (max-width: 1100px) {
  .menu-toggle { display: flex; }
  .nav-panel {
    display: none;
    order: 10;
    width: 100%;
    justify-content: center;
    overflow-x: visible;
  }
  .site-header.nav-open .nav-panel { display: flex; flex-wrap: wrap; gap: 8px; }
  .header-cta { margin-left: auto; }
  .hero-container { grid-template-columns: 1fr; }
  .entry-card { max-width: 560px; }
  .feature-mosaic { grid-template-columns: 1fr; }
  .mosaic-primary { grid-template-columns: 1fr; }
  .mosaic-primary .mosaic-media { height: 280px; }
  .mode-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 780px) {
  .section { padding: 68px 0; }
  .site-header { padding: 12px; }
  .brand-text strong { font-size: 15px; }
  .header-cta .btn-header-desktop { display: none; }
  .hero { padding: 60px 0; }
  .hero h1 { font-size: 35px; }
  .quick-compare { grid-template-columns: 1fr; }
  .compare-item { grid-template-columns: 1fr; }
  .footer-brand { flex-direction: column; align-items: flex-start; }
  .footer-desc { text-align: left; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  body { font-size: 15px; }
  .mode-grid, .steps { grid-template-columns: 1fr; gap: 16px; }
  .nav-panel { justify-content: initial; }
  .site-header.nav-open .nav-panel { display: grid; grid-template-columns: repeat(2, 1fr); width: 100%; }
  .nav-chip { min-width: 0; width: 100%; padding: 12px 8px; }
  .hero-lead { font-size: 15px; }
  .entry-card { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section-title { font-size: 26px; }
  .mosaic-primary .mosaic-body, .mosaic-card .mosaic-body { padding: 20px; }
  .cta-band { padding: 68px 0; }
  .footer-copy { flex-direction: column; align-items: center; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .step, .mode-card, .mosaic-primary, .mosaic-card, .compare-item, .btn { transform: none !important; }
}

/* roulang page: category4 */
:root {
  --bg: #F5F3F0;
  --surface: #FFFFFF;
  --ink-strong: #121315;
  --ink-body: #22242A;
  --ink-muted: #5F636C;
  --line: #E3DFD8;
  --primary: #C6A279;
  --primary-strong: #D5B48E;
  --primary-ink: #141518;
  --dark-bg: #17181B;
  --dark-surface: #1F2125;
  --success: #558B6C;
  --warning: #B8843D;
  --error: #B85C47;
  --focus-ring: rgba(198,162,121,0.45);
  --radius: 16px;
  --radius-full: 999px;
  --shadow: 0 1px 2px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.07), 0 2px 6px rgba(0,0,0,0.04);
  --container: 1200px;
  --space-xxl: 96px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "SF Pro SC", "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
}

.container {
  max-width: var(--container);
  padding-left: 24px;
  padding-right: 24px;
  margin: 0 auto;
}

@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ========== 顶部提示条 ========== */
.top-strip {
  background: var(--dark-bg);
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  line-height: 36px;
  letter-spacing: 0.02em;
}

.top-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
}

.top-notice {
  font-size: 12px;
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

@media (max-width: 767px) {
  .top-notice { display: none; }
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 12px 0 16px;
  background: transparent;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--dark-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  border-top: 2px solid var(--primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: 16px;
  flex-shrink: 0;
}

.brand-mark {
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(198,162,121,0.15);
  padding: 6px 10px;
  border-radius: 10px;
}

.brand-text {
  display: none;
}

.brand-text strong {
  color: #FFF;
  font-size: 16px;
  font-weight: 700;
  display: block;
  line-height: 1.2;
}

.brand-text small {
  color: rgba(255,255,255,0.5);
  font-size: 11px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  overflow-x: auto;
}

.nav-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  padding: 8px 12px;
  border-radius: 10px;
  color: rgba(255,255,255,0.65);
  font-size: 13px;
  white-space: nowrap;
  transition: background 0.3s ease, color 0.3s ease;
}

.nav-chip:hover {
  background: rgba(198,162,121,0.15);
  color: #fff;
}

.nav-chip.is-active {
  background: var(--primary);
  color: var(--primary-ink);
  font-weight: 700;
}

.nav-chip svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.nav-submit {
  padding: 10px 20px;
  background: linear-gradient(135deg, #D5B48E 0%, #C6A279 100%);
  color: var(--primary-ink);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
  margin-left: 12px;
  letter-spacing: 0.02em;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  white-space: nowrap;
}

.nav-submit:hover {
  box-shadow: 0 4px 16px rgba(198,162,121,0.4);
  transform: translateY(-1px);
}

/* 移动端菜单 */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(198,162,121,0.15);
  cursor: pointer;
  margin-left: 8px;
}

.nav-burger span {
  width: 16px;
  height: 2px;
  background: var(--primary);
  display: block;
  margin: 2px 0;
  transition: 0.3s;
}

@media (max-width: 900px) {
  .site-header {
    padding-bottom: 0;
    height: auto;
  }
  .brand-text { display: block; margin-right: auto; }
  .brand-mark { font-size: 14px; padding: 4px 8px; }
  .brand { margin-right: 0; }
  .nav-panel {
    flex-wrap: wrap;
    gap: 8px;
    width: calc(100% - 32px);
    margin: 0 auto;
  }
  .nav-submit { display: none; }
  .nav-links {
    order: 3;
    display: none;
    width: 100%;
    padding-top: 4px;
    border-top: 1px solid rgba(255,255,255,.1);
    flex-wrap: wrap;
    overflow: visible;
  }
  .nav-links.is-open {
    display: block;
  }
  .nav-chip {
    padding: 10px;
    width: calc(33.333% - 8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border-radius: 12px;
    background: rgba(255,255,255,0.06);
    margin: 3px;
  }
  .nav-chip svg {
    width: 20px;
    height: 20px;
  }
  .nav-chip span {
    font-size: 12px;
  }
  .nav-burger {
    display: flex;
  }
}

@media (max-width: 520px) {
  .nav-links { gap: 0; }
  .nav-chip {
    width: calc(50% - 8px);
  }
  .nav-chip {
    flex-direction: row;
    justify-content: flex-start;
  }
}

/* ========== 分类页 Hero ========== */
.category-hero {
  background:
    linear-gradient(135deg, rgba(23,24,27,0.95) 0%, rgba(23,24,27,0.75) 50%, rgba(23,24,27,0.6) 100%),
    url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  position: relative;
  color: #FFFFFF;
  padding: 72px 0 90px;
  overflow: hidden;
}

.category-hero .shape {
  position: absolute;
  right: -50px;
  bottom: -40px;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(198,162,121,0.25);
  border-radius: 24px;
  transform: rotate(12deg);
}

.category-hero .container {
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(198,162,121,0.12);
  border: 1px solid rgba(198,162,121,0.3);
  padding: 6px 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  border-radius: var(--radius-full);
  color: var(--primary-strong);
  margin-bottom: 18px;
}

.category-hero h1 {
  margin-top: 20px;
  font-size: clamp(32px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.category-hero h1 .accent {
  display: block;
  background: linear-gradient(120deg, var(--primary-strong), #E4C9A4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.category-hero .intro {
  margin-top: 20px;
  max-width: 620px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255,255,255,0.82);
}

.hero-meta {
  margin-top: 24px;
  display: flex;
  gap: 24px;
  color: rgba(255,255,255,0.5);
  font-size: 13px;
}

.hero-meta span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-meta i {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,162,121,0.15);
  border-radius: 6px;
  font-style: normal;
  color: var(--primary-strong);
  font-size: 11px;
  font-weight: 700;
}

@media (max-width: 768px) {
  .category-hero {
    padding: 48px 0 54px;
  }
  .hero-meta {
    flex-direction: column;
    gap: 8px;
  }
}

/* ========== 面包屑 ========== */
.breadcrumb {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  font-size: 13px;
  color: var(--ink-muted);
}

.breadcrumb .container {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb a {
  color: var(--ink-muted);
  transition: color 0.3s;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb .sep {
  color: var(--line);
  margin: 0 4px;
}

/* ========== 正文通用板块 ========== */
.section {
  padding: var(--space-xxl) 0;
}

.section-title-wrap {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-title-wrap.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.sec-special {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 12px;
  text-indent: 0.2em;
}

.section-title {
  font-size: clamp(24px, 3vw, 32px);
  color: var(--ink-strong);
  font-weight: 800;
  line-height: 1.3;
}

.section-sub {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.8;
  margin-top: 16px;
}

@media (max-width: 768px) {
  .section { --space-xxl: 72px; }
}

/* ========== 内容卡片 ========== */
.content-card-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

.content-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 20px 28px;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.content-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: var(--primary);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  flex-shrink: 0;
}

.service-icon {
  background: rgba(198,162,121,0.2);
  color: #B8895B;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
}

.card-icon.gold {
  background: linear-gradient(135deg, #C6A279, #D9B993);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-icon.gold svg, .service-icon svg {
  width: 20px;
  height: 20px;
  stroke: #fff;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-icon.service-icon svg {
  stroke: #B8895B;
  width: 20px;
  height: 20px;
}

.card-body {
  flex: 1;
}

.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--ink-strong);
}

.card-body p {
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.7;
  max-width: 680px;
}

.card-tag {
  background: var(--bg);
  border-radius: 8px;
  font-size: 12px;
  padding: 2px 10px;
  color: var(--ink-body);
  display: inline-block;
  margin-top: 8px;
}

/* 安全全景卡 */
.security-overview {
  background: linear-gradient(160deg, var(--dark-surface), var(--dark-bg));
  border: 1px solid rgba(198,162,121,0.2);
  border-radius: 20px;
  padding: 36px;
  color: #fff;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 36px;
}

.sec-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.sec-title-gold {
  color: var(--primary-strong);
}

.sec-desc {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  line-height: 1.8;
}

.sec-bullets {
  margin-top: 18px;
}

.sec-bullets li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  color: rgba(255,255,255,0.8);
}

.sec-bullets li i {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .security-overview {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }
}

/* ========== 安全防线 ========== */
.security-suite {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.suite-block {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.suite-block:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.suite-block .num {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0;
  line-height: 1;
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

.suite-name {
  font-weight: 700;
  font-size: 16px;
  color: var(--ink-strong);
}

.suite-desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.75;
  flex: 1;
}

.suite-block .bar {
  height: 2px;
  background: rgba(198,162,121,0.1);
}

.suite-block .bar i {
  display: block;
  height: 2px;
  background: var(--primary);
  width: 100%;
}

@media (max-width: 800px) {
  .security-suite {
    grid-template-columns: 1fr;
  }
}

/* ========== 数据展示 ========== */
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.data-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: border-color 0.3s;
}

.data-box:hover {
  border-color: var(--primary);
}

.data-box .val {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink-strong);
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

.data-box .val sup {
  font-size: 14px;
}

.data-box .label {
  font-size: 13px;
  color: var(--ink-muted);
  margin-top: 6px;
}

@media (max-width: 768px) {
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 420px) {
  .data-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== 流程图 ========== */
.flow-wrap {
  display: flex;
  flex-direction: column;
}

.flow-list {
  list-style: none;
  margin: 16px 0 0;
}

.flow-list li {
  display: flex;
  align-items: stretch;
  padding: 0;
  margin-bottom: 0;
  gap: 20px;
}

.flow-marker {
  position: relative;
  flex: 2;
  max-width: 100px;
}

.flow-marker .dot {
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: var(--primary-ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  position: relative;
  z-index: 2;
  margin-left: 14px;
}

.flow-marker .line {
  position: absolute;
  left: 44px;
  top: 52px;
  width: 2px;
  height: calc(100% - 0px);
  background: rgba(198,162,121,0.35);
}

.flow-marker.linear .line {
  height: calc(100% - 18px);
  top: 52px;
}

.flow-item {
  flex: 8;
  padding: 14px 22px 26px 0;
  max-width: 920px;
}

.flow-item h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--ink-strong);
}

.flow-item p {
  font-size: 15px;
  color: var(--ink-muted);
  line-height: 1.8;
}

/* ========== 评论区代表角色 ========== */
.representative-section {
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 28px;
  margin-top: 40px;
}

.rep-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.rep-row {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg);
  border-radius: 14px;
  padding: 20px;
}

.rep-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--primary-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  font-family: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  flex-shrink: 0;
}

.rep-text h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-strong);
}

.rep-text .pos {
  font-size: 12px;
  color: var(--primary);
  margin-bottom: 6px;
}

.rep-text .desc {
  font-size: 14px;
  color: var(--ink-muted);
  line-height: 1.7;
}

@media (max-width: 600px) {
  .rep-row {
    flex-direction: column;
    text-align: center;
  }
}

/* ========== FAQ ========== */
.faq-list {
  margin-top: 40px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-bottom: 8px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item.is-open {
  border-color: var(--primary);
}

.faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  cursor: pointer;
  min-height: 56px;
  justify-content: space-between;
  font-size: 16px;
  font-weight: 600;
  background: transparent;
  color: var(--ink-body);
  outline: none;
}

.faq-q .faq-ic {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,162,121,0.15);
  color: #B8895B;
  flex-shrink: 0;
  font-size: 18px;
  font-weight: 300;
  transition: 0.3s;
  line-height: 1;
}

.faq-item.is-open .faq-ic {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-muted);
}

.faq-inner strong {
  color: var(--ink-body);
}

.faq-inner p {
  margin: 8px 0;
}

/* ========== CTA ========== */
.cta-panel {
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-surface) 60%, var(--dark-bg) 100%);
  border-top: 1px solid rgba(198,162,121,0.5);
  border-radius: 20px;
  padding: 54px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  background-image: url('/assets/images/backpic/back-3.png');
  background-blend-mode: overlay;
  background-size: cover;
  background-position: center;
  position: relative;
  color: #fff;
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(23,24,27,0.85);
  border-radius: 20px;
}

.cta-left, .cta-right {
  position: relative;
  z-index: 2;
}

.cta-left .eyebrow {
  color: var(--primary-strong);
  font-size: 13px;
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 10px;
}

.cta-left h2 {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 10px;
}

.cta-left p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  max-width: 500px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, #D5B48E, #C6A279);
  color: var(--primary-ink);
  padding: 16px 40px;
  border-radius: var(--radius-full);
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(198,162,121,0.35);
}

.cta-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.4;
  transition: transform 0.3s;
}

.cta-btn:hover {
  box-shadow: 0 6px 24px rgba(198,162,121,0.5);
}

.cta-btn:hover svg {
  transform: translateX(4px);
}

@media (max-width: 760px) {
  .cta-panel {
    padding: 30px 24px;
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark-bg);
  color: #FFF;
  margin-top: 0;
  border-top: 2px solid rgba(198,162,121,0.3);
}

.site-footer .container {
  padding-top: 56px;
  padding-bottom: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 24px;
}

.footer-brand .brand {
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  max-width: 460px;
  line-height: 1.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 0;
}

.footer-grid h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-strong);
  margin-bottom: 18px;
  position: relative;
  display: inline-block;
}

.footer-grid h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 20px;
  height: 2px;
  background: var(--primary);
}

.footer-grid ul {
  list-style: none;
}

.footer-grid ul li {
  margin: 10px 0;
}

.footer-grid ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: color 0.3s;
}

.footer-grid ul li a:hover {
  color: var(--primary);
}

.footer-copy {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 18px;
  color: rgba(255,255,255,0.35);
  font-size: 13px;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-copy {
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }
}

/* ========== 通用动画 ========== */
.hover-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--ink-body);
  font-size: 14px;
  font-weight: 600;
  transition: 0.3s;
}

.hover-link svg {
  transition: transform 0.3s;
}

.hover-link:hover {
  color: var(--primary);
}

.hover-link:hover svg {
  transform: translateX(4px);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========== back-to-top ========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--dark-bg);
  border: 1px solid var(--primary);
  color: var(--primary-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99;
  transition: background 0.3s;
  box-shadow: 0 6px 16px rgba(0,0,0,0.25);
  font-size: 18px;
  opacity: 0.9;
  cursor: pointer;
}

.back-to-top:hover {
  background: var(--primary);
  color: var(--primary-ink);
}

@media (max-width: 600px) {
  .back-to-top { display: none; }
}