/* roulang page: index */
:root{
  --primary:#2C63D4;
  --primary-deep:#1E45A0;
  --primary-soft:#E8EFFC;
  --accent:#F2653F;
  --accent-deep:#DF5530;
  --ink:#0F2138;
  --body:#46566B;
  --muted:#7A8798;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --band:#EDF3FB;
  --line:#E1E8F3;
  --ok:#1F9D6B;
  --warn:#D98A17;
  --danger:#D9483B;
  --radius:14px;
  --radius-lg:18px;
  --shadow:0 1px 2px rgba(15,33,56,.04),0 10px 28px -16px rgba(15,33,56,.18);
  --shadow-hover:0 16px 36px -18px rgba(15,33,56,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:#fff}
.section--band{background:var(--band)}
.section--page{background:var(--page)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px}
.section-head p{margin:0;font-size:16px;color:var(--body);max-width:72ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.eyebrow--accent{color:#B93F1E;background:#FDECE6}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(242,101,63,.95)}
.btn-accent:hover{background:var(--accent-deep);color:#fff}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,99,212,.35)}
.btn-block{width:100%}

/* ===== 标签 ===== */
.tag{display:inline-block;font-size:13px;line-height:1;padding:6px 10px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-weight:600}
.tag--soft{background:var(--band);color:var(--muted);font-weight:500}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--body);transition:all .2s ease}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}

/* ===== 页头 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:8px;flex:none;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:-.01em}
.brand:hover{color:var(--primary)}
.brand svg{width:30px;height:30px;color:var(--primary);flex:none}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;color:var(--body);font-weight:500;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.header-right{display:flex;align-items:center;gap:12px;flex:none}

/* 语言切换 */
.lang-wrap{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--body);cursor:pointer;transition:all .2s ease}
.lang-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:#C9DBF7}
.lang-btn svg{width:15px;height:15px}
.lang-btn .chev{transition:transform .2s ease}
.lang-wrap.open .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);width:170px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s ease;z-index:90}
.lang-wrap.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-item{display:flex;align-items:center;justify-content:space-between;width:100%;height:38px;padding:0 10px;border:0;background:transparent;border-radius:8px;font-size:14px;color:var(--body);cursor:pointer;text-align:left;transition:background .18s ease}
.lang-item:hover{background:var(--primary-soft);color:var(--primary)}
.lang-item.is-active{color:var(--primary);font-weight:600}
.lang-item svg{width:15px;height:15px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,99,212,.35)}
.nav-toggle svg{width:22px;height:22px}

/* 移动抽屉 */
.drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;z-index:75;padding:16px 20px 32px;display:none;flex-direction:column;gap:4px;overflow-y:auto}
.drawer.open{display:flex}
.drawer .btn{margin-bottom:12px}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 6px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);transition:color .2s ease}
.drawer-link.active{color:var(--primary);font-weight:600}
.drawer-lang{margin-top:18px;display:flex;gap:10px}
.drawer-lang button{flex:1;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--body);cursor:pointer}
.drawer-lang button.is-active{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);font-weight:600}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#FFFFFF 0%,#EDF3FB 100%);border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.09;pointer-events:none}
.hero-glow{position:absolute;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(44,99,212,.16),rgba(44,99,212,0) 70%);top:-200px;right:-140px;pointer-events:none}
.hero-inner{position:relative;padding:76px 0 68px;max-width:880px}
.hero h1{font-size:40px;line-height:1.22;margin:0 0 20px;color:var(--ink)}
.hero-lead{font-size:16px;line-height:1.9;color:var(--body);max-width:72ch;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.check-strip{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:38px;padding-top:24px;border-top:1px dashed #CBD9ED}
.check-strip li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--body)}
.check-strip svg{width:18px;height:18px;color:var(--ok);flex:none}

/* ===== 网格 ===== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ===== 下载卡 ===== */
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dl-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:30px 28px;display:flex;flex-direction:column;gap:14px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.dl-badge{position:absolute;top:20px;right:20px;font-size:12px;padding:4px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:600}
.dl-icon{width:52px;height:52px;border-radius:14px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center}
.dl-icon svg{width:26px;height:26px}
.dl-card h3{font-size:19px;font-weight:600}
.dl-card p{font-size:14px;margin:0;color:var(--body)}
.dl-note{margin-top:22px;font-size:13px;color:var(--muted)}

/* ===== 指标看板 ===== */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.metric{padding:32px 26px;border-right:1px solid var(--line)}
.metric:last-child{border-right:0}
.metric-num{font-size:40px;line-height:1.05;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric-label{margin-top:8px;font-size:14px;color:var(--ink);font-weight:600}
.metric-desc{margin-top:6px;font-size:13px;line-height:1.7;color:var(--muted)}

/* ===== 服务矩阵 ===== */
.matrix{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.matrix-main{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease}
.matrix-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.matrix-main figure{margin:0;aspect-ratio:16/9;background:linear-gradient(150deg,#E8EFFC,#D6E4F9);overflow:hidden}
.matrix-main figure img{width:100%;height:100%;object-fit:cover}
.matrix-main .matrix-body{padding:28px}
.matrix-main h3{font-size:21px;margin-bottom:10px}
.matrix-main p{font-size:15px;margin-bottom:16px}
.matrix-side{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.mini-icon{width:42px;height:42px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.mini-icon svg{width:22px;height:22px}
.mini-card h3{font-size:16px;font-weight:600;margin-bottom:8px}
.mini-card p{font-size:14px;line-height:1.75;margin:0;color:var(--body)}

/* ===== 场景卡 ===== */
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px 22px;position:relative;overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.scene-card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--primary);opacity:.75}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.scene-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.scene-card p{font-size:14px;line-height:1.78;margin:0;color:var(--body)}
.scene-ico{width:38px;height:38px;border-radius:10px;background:var(--band);color:var(--primary);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.scene-ico svg{width:20px;height:20px}

/* ===== 对比 ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.compare-col{border-radius:var(--radius-lg);padding:30px 28px;border:1px solid var(--line)}
.compare-col--plain{background:#F2F4F8}
.compare-col--guide{background:var(--primary-soft);border-color:#C9DBF7}
.compare-col h3{font-size:18px;margin-bottom:18px}
.compare-col ul li{display:flex;gap:10px;align-items:flex-start;font-size:15px;line-height:1.7;padding:10px 0;border-bottom:1px dashed rgba(15,33,56,.09)}
.compare-col ul li:last-child{border-bottom:0}
.mark{flex:none;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:3px}
.mark-x{background:#E3E7EE;color:#7A8798}
.mark-v{background:var(--ok);color:#fff}
.compare-note{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;font-size:15px;color:var(--ink);font-weight:500;box-shadow:var(--shadow)}

/* ===== 时间轴 ===== */
.timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.timeline::before{content:"";position:absolute;left:0;right:0;top:25px;height:2px;background:var(--line)}
.tl-item{position:relative;padding-top:64px}
.tl-dot{position:absolute;top:0;left:0;width:52px;height:52px;border-radius:50%;background:#fff;border:2px solid var(--accent);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;font-variant-numeric:tabular-nums}
.tl-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.tl-item p{font-size:14px;line-height:1.78;margin:0;color:var(--body)}

/* ===== 标签墙 ===== */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.tag-pill{padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--body);transition:all .2s ease;cursor:default}
.tag-pill:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);transform:translateY(-1px)}

/* ===== 误区列表 ===== */
.pitfall{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:10px 28px}
.pitfall li{display:flex;gap:16px;align-items:flex-start;padding:22px 0;border-bottom:1px solid var(--line)}
.pitfall li:last-child{border-bottom:0}
.pitfall-ico{flex:none;width:40px;height:40px;border-radius:12px;background:#FDECE6;color:var(--accent-deep);display:flex;align-items:center;justify-content:center}
.pitfall-ico svg{width:20px;height:20px}
.pitfall h3{font-size:16px;font-weight:600;margin-bottom:4px}
.pitfall p{font-size:14px;line-height:1.75;margin:0;color:var(--body)}

/* ===== 资讯 ===== */
.news-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:inherit}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.news-thumb{aspect-ratio:16/10;background:linear-gradient(150deg,#E8EFFC,#D6E4F9);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:19px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;line-height:1.75;margin:0;color:var(--body);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto}
.news-side{display:flex;flex-direction:column;gap:24px}
.news-mini{display:grid;grid-template-columns:132px 1fr;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-mini:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.news-mini .news-thumb{aspect-ratio:16/10;border-radius:10px}
.news-mini h3{font-size:15px;line-height:1.55;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:6px}
.news-mini .news-date{font-size:13px;color:var(--muted)}
.news-empty{min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);text-align:center;padding:32px}
.news-empty svg{width:48px;height:48px;color:#C7D4E8}
.news-empty p{margin:0;font-size:15px;color:var(--muted)}

/* ===== 保障卡 ===== */
.safe-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:transform .2s ease,box-shadow .2s ease}
.safe-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.safe-card h3{font-size:16px;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.safe-card h3 svg{width:20px;height:20px;color:var(--primary);flex:none}
.safe-card p{font-size:14px;line-height:1.78;margin:0;color:var(--body)}

/* ===== 快速解答 ===== */
.quick-card{background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:var(--radius);padding:22px 24px;transition:transform .2s ease,box-shadow .2s ease}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.quick-card h3{font-size:15px;font-weight:600;margin-bottom:8px}
.quick-card p{font-size:14px;line-height:1.75;margin:0;color:var(--body)}

/* ===== FAQ ===== */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:16px 26px;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);list-style:none;transition:color .2s ease,background .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary);background:#FAFCFF}
.faq-item[open] summary{color:var(--primary)}
.faq-sign{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:16px;line-height:1;transition:transform .25s ease,color .2s ease,border-color .2s ease}
.faq-item[open] .faq-sign{transform:rotate(45deg);color:var(--primary);border-color:var(--primary)}
.faq-answer{padding:0 26px 22px 26px;font-size:15px;line-height:1.85;color:var(--body)}

/* ===== 表单 ===== */
.form-layout{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start}
.form-intro h2{font-size:30px;line-height:1.35;margin-bottom:16px}
.form-intro p{font-size:15px;line-height:1.85}
.form-points{margin:24px 0 26px}
.form-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;padding:8px 0}
.form-points svg{width:18px;height:18px;color:var(--ok);flex:none;margin-top:5px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 18px 44px -24px rgba(15,33,56,.3);padding:32px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:3px}
.input{width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--ink);background:#FBFCFE;border:1px solid var(--line);border-radius:10px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.input::placeholder{color:#A6B2C4}
.input:focus{outline:none;border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(44,99,212,.14)}
.input.invalid{border-color:var(--danger)}
.err{display:block;min-height:16px;font-size:12px;color:var(--danger);margin-top:4px}
.pill-group{display:flex;flex-wrap:wrap;gap:10px}
.pill-opt{position:relative}
.pill-opt input{position:absolute;opacity:0;width:0;height:0}
.pill-opt span{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--body);cursor:pointer;transition:all .2s ease}
.pill-opt input:checked+span{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);font-weight:600}
.pill-opt input:focus-visible+span{box-shadow:0 0 0 3px rgba(44,99,212,.3)}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--body);line-height:1.7}
.check-line input{width:18px;height:18px;margin-top:4px;accent-color:var(--primary);flex:none}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.shake{animation:shake .12s ease 2}
.form-done{display:none;text-align:center;padding:26px 8px}
.form-done.show{display:block}
.form-done svg{width:52px;height:52px;color:var(--ok);margin:0 auto 14px}
.form-done h3{font-size:19px;margin-bottom:10px}
.form-done p{font-size:14px;color:var(--body);margin:0}

/* ===== 栏目入口 ===== */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;color:inherit;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.entry-card h3{font-size:17px;font-weight:600}
.entry-card p{font-size:14px;margin:0;color:var(--body);line-height:1.7}
.entry-arrow{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:8px}
.entry-card:hover .entry-arrow{gap:10px}

/* ===== 页脚 ===== */
.site-footer{background:#0F2138;color:#B9C6D8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand svg{width:28px;height:28px;color:#7FA8F0;flex:none}
.site-footer p{font-size:14px;line-height:1.8;color:#93A5BC;margin:0 0 16px}
.footer-dl{display:flex;flex-wrap:wrap;gap:10px}
.footer-dl a{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#C9D6E6;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:7px 12px;transition:all .2s ease}
.footer-dl a:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.22)}
.footer-dl svg{width:14px;height:14px}
.site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:13.5px;color:#93A5BC;transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#7A8BA3}
.footer-bottom a{color:#93A5BC}
.footer-bottom a:hover{color:#fff}

/* ===== 提示条 ===== */
.toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,14px);background:#0F2138;color:#fff;font-size:14px;padding:12px 22px;border-radius:999px;box-shadow:0 12px 30px -12px rgba(15,33,56,.6);opacity:0;visibility:hidden;transition:all .25s ease;z-index:200}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}

@media (max-width:1024px){
  .section{padding:64px 0}
  .hero-inner{padding:60px 0 56px}
  .hero h1{font-size:34px}
  .section-head h2{font-size:26px}
  .form-intro h2{font-size:26px}
  .grid-4,.dl-grid,.entry-grid{grid-template-columns:repeat(2,1fr)}
  .matrix{grid-template-columns:1fr}
  .matrix-side{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr);row-gap:36px}
  .timeline::before{display:none}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-last-child(-n+2){border-bottom:0}
  .news-grid{grid-template-columns:1fr}
  .form-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:900px){
  .main-nav{display:none}
  .lang-wrap{display:none}
  .nav-toggle{display:flex}
  .header-right .btn{display:none}
}
@media (max-width:768px){
  .compare{grid-template-columns:1fr}
  .grid-3,.grid-2,.dl-grid,.entry-grid,.grid-4{grid-template-columns:1fr}
  .matrix-side{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .header-inner{height:64px;gap:12px}
  .drawer{top:64px}
  .brand{font-size:15px}
  .brand svg{width:26px;height:26px}
  .hero-inner{padding:44px 0 44px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-lead{font-size:15px}
  .section-head h2{font-size:22px}
  .form-intro h2{font-size:22px}
  .btn,.btn-lg{height:48px;padding:0 20px;font-size:15px}
  .btn-block{width:100%}
  .hero-actions{flex-direction:column;align-items:stretch}
  .check-strip{gap:10px 18px}
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0}
  .metric:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .metric:last-child{border-bottom:0}
  .metric-num{font-size:32px}
  .timeline{grid-template-columns:1fr;row-gap:28px}
  .tl-item{padding-top:0;padding-left:66px;min-height:52px}
  .tl-dot{top:0}
  .news-mini{grid-template-columns:104px 1fr;gap:14px}
  .faq-item summary{padding:14px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px 18px;font-size:14px}
  .form-card{padding:24px 20px}
  .compare-col{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:left}
  .pitfall{padding:6px 20px}
  .news-body h3{font-size:17px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .dl-card:hover,.mini-card:hover,.scene-card:hover,.news-card:hover,.news-mini:hover,.safe-card:hover,.quick-card:hover,.entry-card:hover,.matrix-main:hover{transform:none}
}

/* roulang page: article */
:root{
  --primary:#2C63D4;
  --primary-deep:#1E45A0;
  --primary-soft:#E8EFFC;
  --accent:#F2653F;
  --accent-deep:#DF5530;
  --ink:#0F2138;
  --body:#46566B;
  --muted:#7A8798;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --band:#EDF3FB;
  --line:#E1E8F3;
  --ok:#1F9D6B;
  --warn:#D98A17;
  --danger:#D9483B;
  --radius:14px;
  --radius-lg:18px;
  --shadow:0 1px 2px rgba(15,33,56,.04),0 10px 28px -16px rgba(15,33,56,.18);
  --shadow-hover:0 16px 36px -18px rgba(15,33,56,.26);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em;overflow-wrap:anywhere}
p{margin:0}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-deep)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,99,212,.35);border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:#fff}
.section--band{background:var(--band)}
.section--page{background:var(--page)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--body);max-width:72ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(242,101,63,.95)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn:active{transform:translateY(1px)}
.btn-block{width:100%}
/* 标签 */
.tag{display:inline-block;font-size:13px;line-height:1;padding:6px 10px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-weight:600}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:5px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--body);transition:all .2s ease}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
/* 页头 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:8px;flex:none;color:var(--ink);font-weight:700;font-size:17px;letter-spacing:-.01em}
.brand:hover{color:var(--primary)}
.brand svg{width:30px;height:30px;color:var(--primary);flex:none}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;color:var(--body);font-weight:500;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.header-right{display:flex;align-items:center;gap:12px;flex:none}
.lang-wrap{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--body);cursor:pointer;transition:all .2s ease}
.lang-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:#C9DBF7}
.lang-btn svg{width:15px;height:15px}
.lang-btn .chev{transition:transform .2s ease}
.lang-wrap.open .lang-btn .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);width:178px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s ease;z-index:90}
.lang-wrap.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-item{display:flex;align-items:center;justify-content:space-between;width:100%;height:38px;padding:0 10px;border:0;background:transparent;border-radius:8px;font-size:14px;color:var(--body);cursor:pointer;text-align:left;transition:background .18s ease}
.lang-item:hover{background:var(--primary-soft);color:var(--primary)}
.lang-item.is-active{color:var(--primary);font-weight:600}
.lang-item svg{width:15px;height:15px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.nav-toggle svg{width:22px;height:22px}
.drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;z-index:75;padding:16px 20px 32px;display:none;flex-direction:column;gap:4px;overflow-y:auto}
.drawer.open{display:flex}
.drawer .btn{margin-bottom:12px}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 6px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);transition:color .2s ease}
.drawer-link.active{color:var(--primary);font-weight:600}
.drawer-lang{margin-top:18px;display:flex;gap:10px}
.drawer-lang button{flex:1;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--body);cursor:pointer}
.drawer-lang button.is-active{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);font-weight:600}
/* 面包屑 */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:26px 0 0}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#C3CEDD}
.crumbs .current{color:var(--muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
/* 文章头 */
.article-top{padding:18px 0 40px;background:#fff}
.article-head{max-width:820px}
.article-head h1{font-size:40px;line-height:1.22;margin-bottom:18px}
.article-lead{font-size:17px;line-height:1.85;color:var(--body);max-width:68ch}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:22px;font-size:13px;color:var(--muted)}
.article-meta .dot{color:#C3CEDD}
.share-row{display:flex;align-items:center;gap:10px;margin-top:24px;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--body);cursor:pointer;transition:all .2s ease}
.share-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.share-btn svg{width:17px;height:17px}
.article-cover{margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);aspect-ratio:21/9;background:linear-gradient(160deg,#fff,#EDF3FB);box-shadow:var(--shadow)}
.article-cover img{width:100%;height:100%;object-fit:cover}
/* 正文 */
.article-body{background:#fff;padding:8px 0 64px}
.article-shell{max-width:800px;margin:0 auto}
.prose-cn{font-size:17px;line-height:1.9;color:var(--body);max-width:760px}
.prose-cn > *:first-child{margin-top:0}
.prose-cn h2{font-size:25px;line-height:1.4;margin:44px 0 16px;padding-left:14px;position:relative}
.prose-cn h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:var(--primary)}
.prose-cn h3{font-size:19px;line-height:1.5;margin:32px 0 12px;font-weight:600}
.prose-cn p{margin:0 0 22px}
.prose-cn ul,.prose-cn ol{margin:0 0 22px;padding-left:24px}
.prose-cn ul li{list-style:disc;margin-bottom:8px;line-height:1.8}
.prose-cn ol li{list-style:decimal;margin-bottom:8px;line-height:1.8}
.prose-cn blockquote{margin:26px 0;padding:20px;border-left:3px solid var(--primary);background:var(--page);border-radius:10px;color:var(--body)}
.prose-cn blockquote p:last-child{margin-bottom:0}
.prose-cn img{border-radius:14px;border:1px solid var(--line);margin:26px 0;height:auto}
.prose-cn figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:-14px}
.prose-cn a{color:var(--primary);border-bottom:1px solid rgba(44,99,212,.4)}
.prose-cn a:hover{color:var(--primary-deep);border-bottom-color:var(--primary-deep)}
.prose-cn table{width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.prose-cn th{background:var(--band);color:var(--ink);font-weight:600;text-align:left}
.prose-cn th,.prose-cn td{padding:12px 14px;border-bottom:1px solid var(--line)}
.prose-cn tr:last-child td{border-bottom:0}
.prose-cn tbody tr:hover{background:#F9FBFF}
.prose-cn code{background:var(--band);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--primary-deep)}
/* 提示框 */
.callout{display:flex;gap:14px;padding:20px;border-radius:14px;background:var(--primary-soft);border:1px solid #CFDFF9;margin:32px 0}
.callout svg{width:24px;height:24px;color:var(--primary);flex:none;margin-top:2px}
.callout strong{display:block;color:var(--ink);font-size:16px;margin-bottom:6px}
.callout p{font-size:15px;line-height:1.8;margin:0;color:var(--body)}
.callout--warn{background:#FEF4E6;border-color:#F6DFBC}
.callout--warn svg{color:var(--warn)}
/* 要点回顾 */
.keypoints{max-width:800px;margin:0 auto;background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);border-radius:var(--radius);padding:28px 30px;box-shadow:var(--shadow)}
.keypoints h2{font-size:21px;margin-bottom:16px}
.keypoints li{position:relative;padding-left:24px;margin-bottom:12px;color:var(--body);font-size:15.5px;line-height:1.8}
.keypoints li:last-child{margin-bottom:0}
.keypoints li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--primary)}
/* 安全与隐私 */
.safety-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.safety-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.safety-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.safety-card .ico{width:44px;height:44px;border-radius:12px;background:var(--primary-soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.safety-card .ico svg{width:22px;height:22px;color:var(--primary)}
.safety-card h3{font-size:18px;margin-bottom:10px}
.safety-card p{font-size:15px;line-height:1.8;margin:0}
/* 延伸阅读 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.rel-card h3{font-size:17px;line-height:1.5;margin-bottom:8px;color:var(--ink)}
.rel-card p{font-size:14px;line-height:1.75;color:var(--body);margin-bottom:14px}
.rel-card .more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--primary);font-weight:600}
.rel-card .more svg{width:16px;height:16px}
/* FAQ */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:8px 26px;box-shadow:var(--shadow)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:56px;padding:14px 0;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);list-style:none;transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item[open] summary{color:var(--primary)}
.faq-sign{flex:none;width:22px;height:22px;position:relative}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease}
.faq-sign::before{left:50%;top:4px;width:2px;height:14px;transform:translateX(-50%)}
.faq-sign::after{top:50%;left:4px;height:2px;width:14px;transform:translateY(-50%)}
.faq-item[open] .faq-sign::before{transform:translateX(-50%) scaleY(0)}
.faq-body{padding:0 0 20px;font-size:15.5px;line-height:1.85;color:var(--body);max-width:70ch}
/* 下载引导 */
.dl-band{background:linear-gradient(160deg,#FFFFFF,#EDF3FB);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:44px 0}
.dl-band-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.dl-band h2{font-size:24px;line-height:1.4;margin-bottom:8px}
.dl-band p{font-size:15px;color:var(--body);margin:0}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px}
.dl-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:30px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px;transition:transform .2s ease,box-shadow .2s ease}
.dl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.dl-card .dl-head{display:flex;align-items:center;gap:10px}
.dl-card .dl-head svg{width:24px;height:24px;color:var(--primary)}
.dl-card h3{font-size:17px;margin:0}
.dl-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0}
.dl-card .btn{width:100%;margin-top:auto}
/* 返回栏 */
.back-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:52px}
.back-block{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.back-block:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.back-block .label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.back-block .title{font-size:16px;font-weight:600;color:var(--ink)}
.back-block svg{width:20px;height:20px;color:var(--primary);flex:none}
/* 空态 */
.empty-state{max-width:640px;margin:40px auto;min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:48px 24px;text-align:center;box-shadow:var(--shadow)}
.empty-state svg{width:48px;height:48px;color:#C7D4E8}
.empty-state p{font-size:16px;color:var(--muted);margin:0}
/* 声明 */
.notice-line{max-width:800px;margin:36px auto 0;font-size:13px;line-height:1.8;color:var(--muted);text-align:center}
/* 页脚 */
.site-footer{background:#0F2138;color:#B9C7DA;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.footer-brand svg{width:28px;height:28px;color:#7FA8F0;flex:none}
.site-footer p{font-size:14px;line-height:1.85;color:#A9B8CD;margin:0}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:16px;font-weight:600;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-links span{color:#A9B8CD;font-size:14px;transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-dl{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.footer-dl a{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.18);color:#D6E1F0;font-size:13px;transition:all .2s ease}
.footer-dl a:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.34)}
.footer-dl svg{width:15px;height:15px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FA1B9}
/* 提示条 */
.toast{position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);background:#0F2138;color:#fff;font-size:14px;padding:12px 20px;border-radius:10px;box-shadow:0 16px 36px -18px rgba(15,33,56,.6);opacity:0;visibility:hidden;transition:all .25s ease;z-index:200;max-width:calc(100% - 40px);text-align:center}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
/* 响应式 */
@media (max-width:1024px){
  .section{padding:64px 0}
  .article-head h1{font-size:34px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .dl-card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:900px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-right .btn-download{display:none}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-head h2{font-size:22px}
  .article-head h1{font-size:28px;line-height:1.3}
  .article-lead{font-size:16px}
  .prose-cn{font-size:16px}
  .prose-cn h2{font-size:21px;margin-top:36px}
  .prose-cn h3{font-size:18px;margin-top:28px}
  .prose-cn table{display:block;overflow-x:auto;white-space:nowrap}
  .safety-grid,.rel-grid,.dl-card-grid{grid-template-columns:minmax(0,1fr)}
  .back-row{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .dl-band-inner{flex-direction:column;align-items:flex-start}
  .keypoints{padding:22px}
  .faq-list{padding:6px 18px}
}
@media (max-width:520px){
  .lang-wrap{display:none}
  .article-cover{aspect-ratio:16/10}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .dl-actions .btn{width:100%}
  .article-meta{font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .safety-card:hover,.rel-card:hover,.dl-card:hover,.back-block:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --primary:#2C63D4;
  --primary-deep:#1E45A0;
  --primary-soft:#E8EFFC;
  --accent:#F2653F;
  --accent-deep:#DF5530;
  --ink:#0F2138;
  --body:#46566B;
  --muted:#7A8798;
  --page:#F6F8FC;
  --card:#FFFFFF;
  --band:#EDF3FB;
  --line:#E1E8F3;
  --ok:#1F9D6B;
  --warn:#D98A17;
  --danger:#D9483B;
  --radius:14px;
  --radius-lg:18px;
  --shadow:0 1px 2px rgba(15,33,56,.04),0 10px 28px -16px rgba(15,33,56,.18);
  --shadow-hover:0 16px 36px -18px rgba(15,33,56,.26);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body img{max-width:100%;display:block;border:0}
body a{color:var(--primary);text-decoration:none}
body a:hover{text-decoration:underline}
body h1,body h2,body h3,body h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
body p{margin:0}
body ul,body ol{margin:0;padding:0;list-style:none}
body button{font-family:inherit}
body input,body select,body textarea{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--white{background:#fff}
.section--band{background:var(--band)}
.section--page{background:var(--page)}
.section-head{max-width:780px;margin-bottom:42px}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--body);max-width:72ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.eyebrow--accent{color:#B93F1E;background:#FDECE6}
/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.btn-lg{height:50px;padding:0 26px;font-size:16px}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(242,101,63,.95)}
.btn-accent:hover{background:var(--accent-deep);color:#fff;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-deep);color:#fff;text-decoration:none}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep);text-decoration:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,99,212,.35)}
.btn-block{width:100%}
/* ===== 标签 ===== */
.tag{display:inline-block;font-size:13px;line-height:1;padding:6px 10px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-weight:600}
.tag--soft{background:var(--band);color:var(--muted);font-weight:500}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--body);transition:all .2s ease;white-space:nowrap}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);text-decoration:none}
/* ===== 页头 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:8px;flex:none;color:var(--ink);font-weight:700;font-size:17px}
.brand:hover{color:var(--primary);text-decoration:none}
.brand svg{width:30px;height:30px;color:var(--primary);flex:none}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1}
.nav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;color:var(--body);font-weight:500;transition:color .2s ease}
.nav-link:hover{color:var(--primary);text-decoration:none}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.header-right{display:flex;align-items:center;gap:12px;flex:none;position:relative}
.lang-wrap{position:relative}
.lang-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--body);cursor:pointer;transition:all .2s ease}
.lang-btn:hover{background:var(--primary-soft);color:var(--primary);border-color:#C9DBF7}
.lang-btn svg{width:15px;height:15px}
.lang-btn .chev{transition:transform .2s ease}
.lang-wrap.open .lang-btn .chev{transform:rotate(180deg)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);width:176px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s ease;z-index:90}
.lang-wrap.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-item{display:flex;align-items:center;justify-content:space-between;width:100%;height:38px;padding:0 10px;border:0;background:transparent;border-radius:8px;font-size:14px;color:var(--body);cursor:pointer;text-align:left;transition:background .18s ease}
.lang-item:hover{background:var(--primary-soft);color:var(--primary)}
.lang-item.is-active{color:var(--primary);font-weight:600}
.lang-item svg{width:15px;height:15px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(44,99,212,.35)}
.nav-toggle svg{width:22px;height:22px}
.drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;z-index:75;padding:16px 20px 32px;display:none;flex-direction:column;gap:4px;overflow-y:auto}
.drawer.open{display:flex}
.drawer .btn{margin-bottom:12px}
.drawer-link{display:flex;align-items:center;height:52px;padding:0 6px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);transition:color .2s ease}
.drawer-link.active{color:var(--primary);font-weight:600}
.drawer-link:hover{text-decoration:none;color:var(--primary)}
.drawer-lang{margin-top:18px;display:flex;gap:10px}
.drawer-lang button{flex:1;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--body);cursor:pointer}
.drawer-lang button.is-active{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);font-weight:600}

/* ===== 分类页头条 ===== */
.cat-hero{background:linear-gradient(160deg,#FFFFFF 0%,var(--band) 100%);border-bottom:1px solid var(--line);padding:44px 0 56px}
.cat-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary);text-decoration:none}
.crumb .sep{margin:0 8px;color:#C7D4E8}
.crumb .now{color:var(--body)}
.cat-hero h1{font-size:38px;line-height:1.26;margin-bottom:16px}
.cat-hero .lead{font-size:16.5px;line-height:1.9;max-width:60ch;color:var(--body)}
.cat-hero .lead + .lead{margin-top:10px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-facts .tag{background:#fff;border:1px solid var(--line);color:var(--body);font-weight:500}
.overview-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:22px}
.overview-card h2{font-size:16px;margin-bottom:14px;letter-spacing:0}
.overview-card ol{counter-reset:ov;display:flex;flex-direction:column;gap:12px}
.overview-card li{position:relative;padding-left:26px;font-size:14px;line-height:1.7;color:var(--body)}
.overview-card li::before{counter-increment:ov;content:counter(ov);position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;background:var(--primary-soft);color:var(--primary);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.overview-card .btn{margin-top:18px}

/* ===== 标签筛选条 ===== */
.tagbar{background:#fff;border-bottom:1px solid var(--line);padding:16px 0}
.tagbar-inner{display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.tagbar-inner::-webkit-scrollbar{display:none}
.tagbar-label{flex:none;font-size:13px;color:var(--muted);display:flex;align-items:center;padding-right:6px}

/* ===== 步骤 ===== */
.step-wrap{display:grid;grid-template-columns:400px minmax(0,1fr);gap:48px;align-items:center}
.step-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--primary-soft)}
.step-figure img{width:100%;height:100%;object-fit:cover}
.step-list{display:flex;flex-direction:column;gap:16px}
.step-card{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-num{flex:none;width:38px;height:38px;border-radius:50%;border:1.5px solid var(--accent);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;background:#fff}
.step-card h3{font-size:17px;margin-bottom:6px}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--body)}

/* ===== 设置清单 ===== */
.setup-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.setup-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:var(--radius);padding:22px 24px;transition:box-shadow .2s ease,transform .2s ease}
.setup-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.setup-item h3{font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.setup-item h3 svg{width:19px;height:19px;color:var(--primary);flex:none}
.setup-item p{font-size:14.5px;line-height:1.8}

/* ===== 对比 ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.compare-col{padding:26px 26px 22px}
.compare-col--bad{background:#F7F9FC;border-right:1px solid var(--line)}
.compare-col--good{background:var(--primary-soft)}
.compare-col h3{font-size:16px;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.compare-col--bad h3{color:var(--muted)}
.compare-col--good h3{color:var(--primary-deep)}
.compare-col ul{display:flex;flex-direction:column;gap:14px}
.compare-col li{display:flex;gap:10px;font-size:14.5px;line-height:1.75}
.mark{flex:none;width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-top:2px}
.mark--bad{background:#E7EDF6;color:#8A98AB}
.mark--good{background:#fff;color:var(--ok);box-shadow:0 1px 3px rgba(15,33,56,.12)}
.compare-foot{grid-column:1/-1;border-top:1px solid var(--line);background:#fff;padding:18px 26px;font-size:14.5px;color:var(--ink);font-weight:600}
.compare-foot span{color:var(--primary)}

/* ===== 资讯列表 ===== */
.post-feature{margin-bottom:24px}
.post-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;color:inherit}
.post-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.post-card--feature{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr)}
.post-thumb{background:var(--primary-soft);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover}
.post-card--feature .post-thumb{aspect-ratio:16/10}
.post-body{padding:26px 28px;display:flex;flex-direction:column;gap:12px}
.post-body h3{font-size:21px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body p{font-size:14.5px;line-height:1.8;color:var(--body);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);margin-top:auto}
.post-meta .more{color:var(--primary);font-weight:600}
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.post-grid .post-thumb{aspect-ratio:16/10}
.post-grid .post-body{padding:20px 22px;gap:10px}
.post-grid h3{font-size:17.5px}
.post-grid p{font-size:14px;-webkit-line-clamp:2}
.list-foot{display:flex;justify-content:center;margin-top:36px}
.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:40px 24px;text-align:center;box-shadow:var(--shadow)}
.empty-state svg{width:48px;height:48px;color:#C7D4E8}
.empty-state p{font-size:14.5px;color:var(--muted)}

/* ===== FAQ ===== */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px;min-height:58px;font-size:15.5px;font-weight:600;color:var(--ink);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .ic{flex:none;width:20px;height:20px;position:relative}
.faq-item summary .ic::before,.faq-item summary .ic::after{content:"";position:absolute;background:var(--muted);border-radius:2px;transition:transform .2s ease,background .2s ease}
.faq-item summary .ic::before{left:3px;right:3px;top:9px;height:2px}
.faq-item summary .ic::after{top:3px;bottom:3px;left:9px;width:2px}
.faq-item[open] summary{color:var(--primary)}
.faq-item[open] summary .ic::after{transform:scaleY(0)}
.faq-item[open] summary .ic::before{background:var(--primary)}
.faq-answer{padding:0 24px 22px;font-size:14.5px;line-height:1.85;color:var(--body);max-width:74ch}

/* ===== 相关主题 ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.related-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:inherit}
.related-card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#C9DBF7}
.related-card h3{font-size:16.5px;margin-bottom:8px}
.related-card p{font-size:14px;line-height:1.75;color:var(--body)}
.related-card .arrow{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--primary)}
.related-card .arrow svg{width:16px;height:16px}

/* ===== 下载引导条 ===== */
.dl-bar{background:linear-gradient(160deg,#FFFFFF 0%,var(--band) 100%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0}
.dl-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.dl-bar h2{font-size:23px;margin-bottom:8px}
.dl-bar p{font-size:14.5px;color:var(--body);max-width:56ch}
.dl-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:#0F2138;color:#B9C5D6;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand svg{width:30px;height:30px;color:#6E9BF0;flex:none}
.site-footer p{color:#93A3B8;line-height:1.8;font-size:13.5px;max-width:36ch}
.footer-dl{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.footer-dl a{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-radius:8px;border:1px solid rgba(255,255,255,.16);color:#D8E2F0;font-size:12.5px;transition:all .2s ease}
.footer-dl a:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.3);text-decoration:none}
.footer-dl svg{width:15px;height:15px}
.site-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;letter-spacing:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#93A3B8;font-size:13.5px;transition:color .2s ease}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7E8FA6}
.footer-bottom span{overflow-wrap:anywhere}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:64px 0}
  .cat-hero-inner{grid-template-columns:1fr;gap:28px}
  .overview-card{max-width:none}
  .step-wrap{grid-template-columns:1fr;gap:28px}
  .step-figure{max-width:520px}
  .post-card--feature{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-right .lang-wrap{display:none}
  .header-right .btn-accent{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .cat-hero{padding:32px 0 44px}
  .cat-hero h1{font-size:27px;line-height:1.35}
  .cat-hero .lead{font-size:15.5px}
  .section-head h2{font-size:23px}
  .setup-grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare-col--bad{border-right:0;border-bottom:1px solid var(--line)}
  .post-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .dl-bar h2{font-size:20px}
  .dl-actions{width:100%}
  .dl-actions .btn{flex:1 1 140px}
  .btn{min-height:48px}
  .btn-sm{min-height:40px}
}
@media (max-width:520px){
  .brand{font-size:15px}
  .brand svg{width:26px;height:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .post-body{padding:18px}
  .faq-item summary{padding:0 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  html{scroll-behavior:auto}
}