/* roulang page: index */
:root{
  --brand-a:#FF6B3D;
  --brand-b:#FF3D77;
  --brand-c:#7A5CFF;
  --brand-grad:linear-gradient(120deg,#FF6B3D 0%,#FF3D77 55%,#7A5CFF 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,107,61,.12),rgba(122,92,255,.12));
  --ink-900:#171320;
  --ink-700:#3A3346;
  --ink-500:#6B6379;
  --line:#ECE7F2;
  --bg:#FFFFFF;
  --bg-soft:#FFF7F3;
  --bg-alt:#F7F4FF;
  --success:#12B886;
  --warn:#FFB020;
  --danger:#F03E3E;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px rgba(23,19,32,.05);
  --sh-2:0 12px 32px rgba(255,61,119,.10);
  --sh-3:0 24px 60px rgba(122,92,255,.16);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-b);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-a)}
a:focus-visible,button:focus-visible{outline:3px solid rgba(255,61,119,.35);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{color:var(--ink-900);margin:0 0 16px;font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4vw,3.25rem);line-height:1.18;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.3}
h3{font-size:1.25rem;line-height:1.5;font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px;padding-left:1.3em}
li{margin-bottom:8px}
.grid-container{max-width:1200px;padding-left:40px;padding-right:40px}
section{position:relative}
.sec{padding:88px 0}
.sec-soft{background:var(--bg-soft)}
.sec-alt{background:var(--bg-alt)}
.sec-line{border-top:1px solid var(--line)}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{margin-bottom:14px}
.sec-lead{font-size:1.0625rem;color:var(--ink-500);max-width:62ch;margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--brand-b);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-grad);border-radius:2px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;overflow-y:auto;z-index:60;
}
.brand-block{height:96px;display:flex;flex-direction:column;justify-content:center;gap:2px;padding:0 6px;border-bottom:1px solid var(--line);margin-bottom:18px}
.brand-mark{display:flex;align-items:center;gap:8px}
.brand-dot{width:26px;height:26px;border-radius:9px;background:var(--brand-grad);box-shadow:var(--sh-2);flex:none;position:relative}
.brand-dot::after{content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(255,255,255,.85)}
.brand-name{font-size:1.05rem;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;line-height:1.2}
.brand-sub{font-size:.75rem;color:var(--ink-500);letter-spacing:.04em;padding-left:34px}
.nav-label{font-size:.6875rem;letter-spacing:.14em;color:var(--ink-500);padding:0 8px;margin-bottom:8px}
.nav-list{list-style:none;margin:0 0 22px;padding:0}
.nav-list li{margin:0 0 6px}
.nav-list a{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--ink-700);font-size:.9375rem;font-weight:600;position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-list a::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand-grad);opacity:0;transition:opacity .2s ease}
.nav-list a:hover,.nav-list a:focus-visible{background:var(--bg-soft);color:var(--brand-b)}
.nav-list a.active{background:var(--brand-grad-soft);color:var(--brand-b)}
.nav-list a.active::before{opacity:1}
.side-foot{margin-top:auto;padding-top:20px}
.side-cta{display:block;text-align:center;padding:13px 16px;border-radius:999px;background:var(--brand-grad);color:#fff;font-weight:700;font-size:.9375rem;box-shadow:var(--sh-2);transition:transform .2s ease,filter .2s ease}
.side-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.side-cta:active{transform:translateY(0) scale(.98)}
.side-note{margin-top:12px;text-align:center}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:.8125rem;font-weight:600;line-height:1.4}
.badge-grad{background:var(--brand-grad);color:#fff}
.badge-soft{background:var(--brand-grad-soft);color:var(--brand-b)}
.badge-status{background:rgba(18,184,134,.12);color:var(--success)}
.badge-warn{background:rgba(255,176,32,.14);color:#B87A00}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- 移动端顶部条与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;height:64px;align-items:center;justify-content:space-between;
  padding:0 18px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-bar .brand-name{font-size:1rem}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:284px;background:#fff;z-index:120;padding:24px 18px;
  transform:translateX(-102%);transition:transform .3s ease;overflow-y:auto;box-shadow:var(--sh-3);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(23,19,32,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 主体容器 ---------- */
.site-main{margin-left:var(--side-w)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:.9375rem;font-weight:700;line-height:1;
  border:1.5px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
  text-align:center;min-height:44px;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{color:var(--brand-b);border-color:var(--brand-b);background:var(--bg-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{padding:9px 18px;font-size:.8125rem;min-height:38px}
.btn-block{width:100%}
.link-more{font-weight:700;font-size:.9375rem;color:var(--brand-b);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{text-decoration:underline;text-underline-offset:3px}

/* ---------- Hero ---------- */
.hero{background:var(--bg-soft);padding:76px 0 104px;overflow:hidden}
.hero-glow{position:absolute;top:-120px;right:-80px;width:420px;height:420px;border-radius:50%;background:var(--brand-grad);opacity:.18;filter:blur(30px);pointer-events:none}
.hero h1{margin:16px 0 20px}
.hero-lead{font-size:1.0625rem;color:var(--ink-700);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 16px}
.hero-note{font-size:.8125rem;color:var(--ink-500);margin:0}
.qr-stage{position:relative;margin-top:36px;display:flex;justify-content:center}
.phone-card{
  width:min(340px,100%);background:#fff;border-radius:var(--r-xl);padding:22px;
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-3);position:relative;z-index:2;
}
.phone-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.phone-top-t{font-size:.875rem;font-weight:700;color:var(--ink-900)}
.qr-canvas{
  aspect-ratio:1/1;border-radius:var(--r-md);border:1px solid var(--line);padding:10px;background:#fff;
}
.qr-svg{width:100%;height:100%;display:block;border-radius:6px}
.qr-caption{font-size:.8125rem;color:var(--ink-500);text-align:center;margin:14px 0 12px}
.phone-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.qr-badge-float{
  position:absolute;background:#fff;border-radius:var(--r-md);padding:10px 16px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;line-height:1.25;z-index:3;
}
.qr-badge-float strong{font-size:1.125rem;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums}
.qr-badge-float span{font-size:.6875rem;color:var(--ink-500)}
.qr-badge-float.one{top:8px;left:-6px}
.qr-badge-float.two{bottom:36px;right:-6px}

/* ---------- 数据条 ---------- */
.stat-strip{margin-top:-52px;position:relative;z-index:5}
.stat-card{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-1);border:1px solid var(--line);
  padding:26px 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
}
.stat-item{text-align:center;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:1.75rem;font-weight:800;font-variant-numeric:tabular-nums;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-cap{font-size:.8125rem;color:var(--ink-500)}

/* ---------- 分类入口墙 ---------- */
.cat-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 20px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;gap:6px;color:var(--ink-900);
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,61,119,.4);color:var(--ink-900)}
.cat-card .cat-ico{width:44px;height:44px;border-radius:14px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1rem;margin-bottom:8px;box-shadow:var(--sh-2)}
.cat-card h3{font-size:1rem;margin:0}
.cat-card p{font-size:.8125rem;color:var(--ink-500);margin:0}

/* ---------- 价值主张 ---------- */
.value-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center}
.value-list{list-style:none;padding:0;margin:24px 0 0}
.value-list li{display:flex;gap:16px;padding:16px 0;border-top:1px solid var(--line);margin:0}
.value-list li:last-child{border-bottom:1px solid var(--line)}
.value-no{font-size:1.5rem;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;flex:none;font-variant-numeric:tabular-nums}
.value-list h3{font-size:1rem;margin:0 0 4px}
.value-list p{font-size:.875rem;color:var(--ink-500);margin:0}
.stack-cards{position:relative;padding:12px 0}
.stack-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.stack-card + .stack-card{margin-top:-28px;margin-left:28px;box-shadow:var(--sh-2);border-color:rgba(255,61,119,.25);position:relative;z-index:2}
.stack-card h4{font-size:.9375rem;margin:0 0 10px;color:var(--ink-900)}
.stack-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:.8125rem;color:var(--ink-500);padding:7px 0;border-bottom:1px dashed var(--line)}
.stack-row:last-child{border-bottom:0}
.stack-row b{color:var(--ink-900);font-weight:700}

/* ---------- Tabs ---------- */
.tabs{border:0;background:transparent;display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}
.tabs::before,.tabs::after{display:none}
.tabs-title{float:none}
.tabs-title>a{
  padding:11px 22px;border-radius:999px;font-size:.875rem;font-weight:700;color:var(--ink-700);
  background:#fff;border:1px solid var(--line);transition:all .22s ease;display:block;
}
.tabs-title>a:hover{background:var(--bg-soft);color:var(--brand-b);border-color:rgba(255,61,119,.4)}
.tabs-title.is-active>a{background:var(--brand-grad);color:#fff;border-color:transparent;box-shadow:var(--sh-2)}
.tabs-panel{padding:0;background:transparent;min-height:240px}
.fn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.fn-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.fn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.fn-ico{width:48px;height:48px;border-radius:14px;background:var(--brand-grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:14px}
.fn-card h3{font-size:1.0625rem;margin:0 0 6px}
.fn-card p{font-size:.875rem;color:var(--ink-500);margin:0}

/* ---------- 二维码卡片墙 ---------- */
.qr-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.qr-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:18px;
  box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.qr-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,61,119,.45)}
.qr-mini{
  aspect-ratio:1/1;border-radius:var(--r-md);border:1px solid var(--line);
  background-color:#fff;
  background-image:repeating-conic-gradient(#171320 0% 25%,#ffffff 0% 50%);
  background-size:14px 14px;
  margin-bottom:14px;
  box-shadow:inset 0 0 0 10px #fff;
}
.qr-item h3{font-size:.9375rem;margin:0 0 8px}
.qr-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.75rem;color:var(--ink-500);margin-bottom:14px}
.qr-item .btn{margin-top:auto}

/* ---------- 下载专区 ---------- */
.dl-wrap{
  background:#fff;border-radius:var(--r-xl);box-shadow:var(--sh-2);padding:36px;
  border-top:4px solid transparent;position:relative;overflow:hidden;
}
.dl-wrap::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--brand-grad)}
.dl-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:start}
.dl-title{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.dl-title h3{margin:0;font-size:1.35rem}
.dl-spec{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0}
.dl-spec div{background:var(--bg-alt);border-radius:var(--r-sm);padding:10px 14px;font-size:.8125rem;color:var(--ink-500)}
.dl-spec b{display:block;color:var(--ink-900);font-size:.9375rem;font-weight:700}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.dl-side{display:grid;gap:14px}
.dl-info{background:var(--bg-soft);border-radius:var(--r-md);padding:18px;border:1px solid var(--line)}
.dl-info h4{font-size:.9375rem;margin:0 0 6px;color:var(--ink-900)}
.dl-info p{font-size:.8125rem;color:var(--ink-500);margin:0}
.code-line{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.75rem;color:var(--ink-700);background:var(--bg-alt);border-radius:8px;padding:8px 10px;display:block;word-break:break-all;margin-top:8px}

/* ---------- 使用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-big{grid-row:span 2;background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column}
.scene-big img{aspect-ratio:4/3;object-fit:cover;width:100%}
.scene-body{padding:24px}
.scene-body h3{font-size:1.125rem;margin:0 0 8px}
.scene-body p{font-size:.875rem;color:var(--ink-500);margin:0}
.scene-card{background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);padding:24px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-card h3{font-size:1rem;margin:0 0 8px}
.scene-card p{font-size:.875rem;color:var(--ink-500);margin:0}
.scene-wide{grid-column:1/-1;display:flex;align-items:center;gap:20px;background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);padding:24px;box-shadow:var(--sh-1)}
.scene-wide .fn-ico{margin-bottom:0;flex:none}
.scene-wide h3{font-size:1rem;margin:0 0 4px}
.scene-wide p{font-size:.875rem;color:var(--ink-500);margin:0}

/* ---------- 演示 ---------- */
.demo-frame{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3);border:1px solid var(--line);background:#fff}
.demo-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.demo-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}
.demo-thumb{border-radius:var(--r-md);overflow:hidden;border:2px solid transparent;background:#fff;padding:0;cursor:pointer;box-shadow:var(--sh-1);transition:border-color .2s ease,transform .2s ease}
.demo-thumb img{aspect-ratio:16/10;object-fit:cover;width:100%}
.demo-thumb:hover{border-color:rgba(255,61,119,.5);transform:translateY(-2px)}
.demo-thumb.is-on{border-color:var(--brand-b)}
.demo-note{font-size:.8125rem;color:var(--ink-500);margin-top:14px;text-align:center}

/* ---------- 排行榜 ---------- */
.rank-list{background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);overflow:hidden}
.rank-row{display:flex;align-items:center;gap:18px;padding:18px 24px;border-bottom:1px solid var(--line);transition:background .2s ease}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:var(--bg-soft)}
.rank-no{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.875rem;background:var(--bg-alt);color:var(--ink-700);flex:none}
.rank-row:nth-child(1) .rank-no,.rank-row:nth-child(2) .rank-no,.rank-row:nth-child(3) .rank-no{background:var(--brand-grad);color:#fff}
.rank-main{flex:1;min-width:0}
.rank-main h3{font-size:.9375rem;margin:0 0 2px}
.rank-main p{font-size:.8125rem;color:var(--ink-500);margin:0}
.rank-val{font-size:.8125rem;color:var(--ink-500);white-space:nowrap;font-variant-numeric:tabular-nums}

/* ---------- 案例 ---------- */
.case-row{display:flex;align-items:center;gap:24px;padding:24px 0;border-top:1px solid var(--line);transition:background .2s ease}
.case-row:last-child{border-bottom:1px solid var(--line)}
.case-row:hover{background:var(--bg-soft)}
.case-no{font-size:1.75rem;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;flex:none;width:60px;font-variant-numeric:tabular-nums}
.case-main{flex:1;min-width:0}
.case-main h3{font-size:1.0625rem;margin:0 0 4px}
.case-main p{font-size:.875rem;color:var(--ink-500);margin:0}
.case-badges{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;position:relative;transition:transform .22s ease,box-shadow .22s ease}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.price-card.featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--sh-3);transform:scale(1.04);
}
.price-card.featured:hover{transform:scale(1.04) translateY(-4px)}
.price-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);white-space:nowrap}
.price-card h3{font-size:1.0625rem;margin:0 0 6px}
.price-desc{font-size:.8125rem;color:var(--ink-500);margin:0 0 16px}
.price-num{font-size:2.125rem;font-weight:800;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.1;margin-bottom:4px}
.price-num small{font-size:.875rem;font-weight:600;color:var(--ink-500);margin-left:4px}
.price-feats{list-style:none;padding:0;margin:18px 0 24px}
.price-feats li{font-size:.875rem;color:var(--ink-700);padding-left:22px;position:relative;margin-bottom:10px}
.price-feats li::before{content:"";position:absolute;left:0;top:9px;width:12px;height:7px;border-left:2px solid var(--brand-b);border-bottom:2px solid var(--brand-b);transform:rotate(-45deg)}
.price-card .btn{margin-top:auto}

/* ---------- 评价墙 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.review-card:nth-child(2n){margin-top:24px}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--brand-b);font-size:.875rem;flex:none}
.review-head h4{font-size:.875rem;margin:0;color:var(--ink-900)}
.stars{color:var(--warn);font-size:.8125rem;letter-spacing:2px;margin:0 0 8px}
.review-card p{font-size:.875rem;color:var(--ink-700);margin:0 0 12px}

/* ---------- 长证言 ---------- */
.voice-card{background:var(--brand-grad-soft);border-radius:var(--r-xl);padding:44px;display:grid;grid-template-columns:200px 1fr;gap:36px;align-items:center}
.voice-avatar{aspect-ratio:1/1;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff}
.voice-avatar img{width:100%;height:100%;object-fit:cover}
.voice-quote{font-size:1.125rem;line-height:1.9;color:var(--ink-900);font-weight:600;margin:0 0 18px}
.voice-quote::before{content:"“";font-size:2.5rem;line-height:0;color:var(--brand-b);margin-right:4px;vertical-align:-14px}
.voice-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:.875rem;color:var(--ink-500)}

/* ---------- 论坛板块 ---------- */
.forum-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:32px}
.forum-nav{background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);overflow:hidden}
.forum-item{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);transition:background .2s ease}
.forum-item:last-child{border-bottom:0}
.forum-item:hover{background:var(--bg-soft)}
.forum-ico{width:32px;height:32px;border-radius:10px;background:var(--brand-grad-soft);color:var(--brand-b);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.8125rem;flex:none}
.forum-item h3{font-size:.9375rem;margin:0;flex:1}
.forum-count{font-size:.75rem;color:var(--ink-500);white-space:nowrap}
.hot-list{background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);overflow:hidden}
.hot-row{display:flex;align-items:flex-start;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line);transition:background .2s ease}
.hot-row:last-child{border-bottom:0}
.hot-row:hover{background:var(--bg-soft)}
.hot-no{width:24px;height:24px;border-radius:8px;background:var(--bg-alt);color:var(--ink-700);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:800;flex:none;margin-top:2px}
.hot-main{flex:1;min-width:0}
.hot-main a{font-size:.9375rem;font-weight:600;color:var(--ink-900);display:block;line-height:1.5}
.hot-main a:hover{color:var(--brand-b)}
.hot-time{font-size:.75rem;color:var(--ink-500);white-space:nowrap}

/* ---------- 资讯卡片 ---------- */
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;height:100%;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-thumb{display:block;position:relative;overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.post-card:hover .post-thumb img{transform:scale(1.05)}
.post-cat{position:absolute;top:12px;left:12px}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:1rem;line-height:1.55;margin:0 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-body h3 a{color:var(--ink-900)}
.post-body h3 a:hover{color:var(--brand-b)}
.post-body p{font-size:.8125rem;color:var(--ink-500);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:.75rem;color:var(--ink-500)}
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px}
.empty-box{background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;box-shadow:var(--sh-1)}
.empty-box p{color:var(--ink-500);margin:14px 0 0;font-size:.9375rem}

/* ---------- FAQ ---------- */
.acc-wrap{max-width:860px;margin:0 auto;background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);padding:10px 26px}
.accordion{border:0;background:transparent;margin:0}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-title{
  font-size:1rem;font-weight:700;color:var(--ink-900);padding:20px 34px 20px 18px;border:0;background:transparent;
  position:relative;transition:color .2s ease,background .2s ease;border-radius:var(--r-sm);
}
.accordion-title:hover,.accordion-title:focus{background:var(--bg-soft);color:var(--brand-b)}
.accordion-title::before{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:1.25rem;font-weight:700;color:var(--brand-b);margin:0;
}
.accordion-item.is-active .accordion-title::before{content:"−"}
.accordion-item.is-active .accordion-title{color:var(--brand-b)}
.accordion-item.is-active .accordion-title::after{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand-grad)}
.accordion-content{padding:0 18px 20px;border:0;background:transparent;color:var(--ink-700);font-size:.9375rem}
.accordion-content p{margin:0}

/* ---------- 收口 CTA ---------- */
.cta-band{
  border-radius:var(--r-xl);background:var(--brand-grad);color:#fff;padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.18)}
.cta-band h2{color:#fff;margin:0 0 8px;font-size:clamp(1.4rem,2.2vw,1.875rem)}
.cta-band p{color:rgba(255,255,255,.9);margin:0;font-size:.9375rem;max-width:52ch}
.cta-right{display:flex;flex-direction:column;align-items:flex-start;gap:10px;position:relative;z-index:2}
.cta-right .btn{background:#fff;color:var(--ink-900);box-shadow:0 10px 26px rgba(23,19,32,.18)}
.cta-right .btn:hover{color:var(--brand-b);transform:translateY(-2px)}
.cta-hint{font-size:.75rem;color:rgba(255,255,255,.85)}

/* ---------- 页脚 ---------- */
.site-footer{background:#171320;color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0}
.site-footer h4{color:#fff;font-size:.9375rem;margin:0 0 14px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-dot{width:30px;height:30px;border-radius:10px}
.foot-brand strong{color:#fff;font-size:1.05rem;font-weight:800}
.site-footer p{font-size:.875rem;color:rgba(255,255,255,.6);line-height:1.8}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:10px}
.foot-links a{color:rgba(255,255,255,.72);font-size:.875rem}
.foot-links a:hover{color:#fff}
.foot-bottom{margin-top:36px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:.8125rem;color:rgba(255,255,255,.5);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease,transform .4s ease}
.reveal.in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .grid-container{max-width:1280px}
  .sec{padding:96px 0}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .site-main{margin-left:0}
  .sec{padding:64px 0}
  .hero{padding:48px 0 72px}
  .grid-container{padding-left:24px;padding-right:24px}
  .value-grid{grid-template-columns:1fr;gap:32px}
  .qr-wall{grid-template-columns:repeat(2,1fr)}
  .cat-wall{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .scene-big{grid-row:auto;grid-column:1/-1}
  .price-grid{grid-template-columns:1fr;gap:32px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .review-card:nth-child(2n){margin-top:0}
  .voice-card{grid-template-columns:1fr;padding:32px}
  .voice-avatar{max-width:160px}
  .forum-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 28px}
  .stat-card{grid-template-columns:repeat(2,1fr);gap:24px}
  .stat-item{border-right:0}
  .stat-item:nth-child(odd){border-right:1px solid var(--line)}
  .demo-thumbs{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  h1{font-size:1.85rem}
  .sec{padding:48px 0}
  .grid-container{padding-left:18px;padding-right:18px}
  .hero-actions .btn{width:100%}
  .qr-wall{grid-template-columns:1fr}
  .cat-wall{grid-template-columns:1fr}
  .fn-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .dl-wrap{padding:24px 18px;border-radius:var(--r-lg)}
  .dl-spec{grid-template-columns:1fr}
  .dl-actions .btn{width:100%}
  .qr-badge-float.one{left:0;top:0;padding:8px 12px}
  .qr-badge-float.two{right:0;bottom:10px;padding:8px 12px}
  .acc-wrap{padding:4px 12px}
  .cta-band{padding:32px 20px;border-radius:var(--r-lg)}
  .cta-right{width:100%}
  .cta-right .btn{width:100%}
  .case-row{flex-wrap:wrap;gap:12px}
  .case-badges{width:100%}
  .price-num{font-size:1.85rem}
  .foot-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --brand-a:#FF6B3D;
  --brand-b:#FF3D77;
  --brand-c:#7A5CFF;
  --brand-grad:linear-gradient(120deg,#FF6B3D 0%,#FF3D77 55%,#7A5CFF 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,107,61,.12),rgba(122,92,255,.12));
  --ink-900:#171320;
  --ink-700:#3A3346;
  --ink-500:#6B6379;
  --line:#ECE7F2;
  --bg:#FFFFFF;
  --bg-soft:#FFF7F3;
  --bg-alt:#F7F4FF;
  --success:#12B886;
  --warn:#FFB020;
  --danger:#F03E3E;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px rgba(23,19,32,.05);
  --sh-2:0 12px 32px rgba(255,61,119,.10);
  --sh-3:0 24px 60px rgba(122,92,255,.16);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-b);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-a)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0 0 16px}
ul,ol{margin:0 0 16px;padding-left:1.4em}
li{margin-bottom:8px}
button{font-family:inherit}
a:focus-visible,button:focus-visible{outline:3px solid rgba(255,61,119,.35);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:40px;padding-right:40px}
.sec-lead{font-size:1.0625rem;color:var(--ink-500);max-width:62ch;margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--brand-b);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-grad);border-radius:2px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 20px;overflow-y:auto;z-index:60;
}
.brand-block{height:96px;display:flex;flex-direction:column;justify-content:center;gap:2px;padding:0 6px;border-bottom:1px solid var(--line);margin-bottom:18px}
.brand-mark{display:flex;align-items:center;gap:8px}
.brand-dot{width:26px;height:26px;border-radius:9px;background:var(--brand-grad);box-shadow:var(--sh-2);flex:none;position:relative}
.brand-dot::after{content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(255,255,255,.85)}
.brand-name{font-size:1.05rem;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;line-height:1.2}
.brand-sub{font-size:.75rem;color:var(--ink-500);letter-spacing:.04em;padding-left:34px}
.nav-label{font-size:.6875rem;letter-spacing:.14em;color:var(--ink-500);padding:0 8px;margin-bottom:8px}
.nav-list{list-style:none;margin:0 0 22px;padding:0}
.nav-list li{margin:0 0 6px}
.nav-list a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:8px 12px;border-radius:var(--r-sm);
  color:var(--ink-700);font-size:.9375rem;font-weight:600;position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-list a::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand-grad);opacity:0;transition:opacity .2s ease}
.nav-list a:hover,.nav-list a:focus-visible{background:var(--bg-soft);color:var(--brand-b)}
.nav-list a.active{background:var(--brand-grad-soft);color:var(--brand-b)}
.nav-list a.active::before{opacity:1}
.nav-list i{width:18px;text-align:center;color:var(--brand-c);font-size:.875rem}
.side-cta{display:block;text-align:center;padding:13px 16px;border-radius:999px;background:var(--brand-grad);color:#fff;font-weight:700;font-size:.9375rem;box-shadow:var(--sh-2);transition:transform .2s ease,filter .2s ease}
.side-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.side-cta:active{transform:translateY(0) scale(.98)}
.side-note{margin-top:14px;text-align:center}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:.8125rem;font-weight:600;line-height:1.4}
.badge-grad{background:var(--brand-grad);color:#fff}
.badge-soft{background:var(--brand-grad-soft);color:var(--brand-b)}
.badge-status{background:rgba(18,184,134,.12);color:var(--success)}
.badge-status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--success)}
.badge-warn{background:rgba(255,176,32,.14);color:#B87A00}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:.9375rem;font-weight:700;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
  text-align:center;min-height:44px;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{color:var(--brand-b);border-color:var(--brand-b);background:var(--bg-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{padding:9px 18px;font-size:.8125rem;min-height:38px}
.btn-block{width:100%}

/* ---------- 移动端顶部条与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;height:64px;align-items:center;justify-content:space-between;
  padding:0 18px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-bar .brand-name{font-size:1rem}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:284px;background:#fff;z-index:120;padding:24px 18px;
  transform:translateX(-102%);transition:transform .3s ease;overflow-y:auto;box-shadow:var(--sh-3);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(23,19,32,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 主体容器 ---------- */
.site-main{margin-left:var(--side-w);min-height:60vh}

/* ---------- A1 面包屑 ---------- */
.crumbbar{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:22px 0}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-500);margin:0}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-b)}
.crumbs span.sep{color:#C9C1D6}
.crumbs .cur{color:var(--ink-900);font-weight:600;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.crumb-title{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:14px}
.crumb-title h2{font-size:1.125rem;font-weight:800;letter-spacing:-.01em}

/* ---------- A2 文章头部 ---------- */
.article-head{padding:56px 0 0}
.article-head-inner{max-width:760px;margin:0 auto}
.article-head h1{
  font-size:clamp(2rem,4vw,3.25rem);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:.8125rem;color:var(--ink-500);padding-bottom:22px;border-bottom:1px solid var(--line)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row i{color:var(--brand-c)}

/* ---------- A4 关键要点 ---------- */
.keypoints{
  max-width:760px;margin:32px auto 0;
  background:var(--brand-grad-soft);
  border-radius:var(--r-lg);
  padding:28px 32px;
  border:1px solid rgba(255,61,119,.12);
}
.keypoints h3{font-size:1.0625rem;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.keypoints h3 i{color:var(--brand-b)}
.keypoints ol{list-style:none;margin:0;padding:0;counter-reset:kp}
.keypoints li{
  counter-increment:kp;position:relative;padding-left:38px;margin-bottom:12px;
  font-size:.9375rem;color:var(--ink-700);line-height:1.75;
}
.keypoints li:last-child{margin-bottom:0}
.keypoints li::before{
  content:counter(kp,decimal-leading-zero);
  position:absolute;left:0;top:1px;font-weight:800;font-size:.9375rem;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- A3 正文排版 ---------- */
.article-body{
  max-width:760px;margin:0 auto;padding:40px 0 8px;
  font-size:1.0625rem;line-height:1.9;color:var(--ink-700);
}
.article-body > p:first-of-type{font-size:1.0625rem}
.article-body p{margin-bottom:20px}
.article-body h2{
  position:relative;font-size:clamp(1.375rem,2.2vw,1.75rem);line-height:1.35;
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--brand-grad);
}
.article-body h3{font-size:1.25rem;line-height:1.4;margin:28px 0 12px;color:var(--ink-900)}
.article-body h4{font-size:1.0625rem;margin:22px 0 10px}
.article-body ul,.article-body ol{padding-left:1.4em;margin-bottom:20px}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--brand-b);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-a)}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;border-left:4px solid var(--brand-b);
  background:var(--bg-soft);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:24px 0 8px;width:100%}
.article-body code,.article-body kbd{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:8px;
  padding:2px 8px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.875rem;color:var(--ink-900);word-break:break-all;
}
.article-body pre{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;overflow-x:auto;margin:20px 0;
}
.article-body pre code{background:none;border:0;padding:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:.9375rem;
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-body thead th{background:var(--bg-alt);color:var(--ink-900);font-weight:700}
.article-body th,.article-body td{padding:12px 16px;border:1px solid var(--line);text-align:left}
.article-body tbody tr:nth-child(even){background:#FCFAFE}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.not-found{max-width:760px;margin:0 auto;padding:56px 0;text-align:center}
.not-found h2{font-size:1.5rem;margin-bottom:12px}
.not-found p{color:var(--ink-500);margin-bottom:24px}

/* ---------- A5 作者卡 ---------- */
.author-card{
  max-width:760px;margin:48px auto 0;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px;
  display:flex;align-items:center;gap:18px;
}
.author-card .avatar{width:56px;height:56px;border-radius:50%;overflow:hidden;border:2px solid var(--line);flex:none}
.author-card .avatar img{width:100%;height:100%;object-fit:cover}
.author-card .author-name{font-weight:800;color:var(--ink-900);font-size:1rem;margin-bottom:2px}
.author-card .author-desc{font-size:.8125rem;color:var(--ink-500);margin:0;line-height:1.7}
.author-card .author-badge{margin-left:auto;flex:none}

/* ---------- A6 相关推荐 ---------- */
.related{padding:64px 0 72px;background:var(--bg-alt);margin-top:56px}
.related-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px}
.related-head h2{font-size:clamp(1.375rem,2.2vw,1.75rem);letter-spacing:-.01em}
.related-head a{font-size:.875rem;font-weight:600}
.rec-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,61,119,.35)}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover}
.rec-thumb .badge{position:absolute;left:12px;top:12px}
.rec-body{padding:20px;display:flex;flex-direction:column;flex:1}
.rec-title{font-size:1rem;font-weight:700;color:var(--ink-900);line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-excerpt{font-size:.875rem;color:var(--ink-500);line-height:1.7;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:.8125rem;color:var(--ink-500)}
.rec-foot .go{color:var(--brand-b);font-weight:600}

/* ---------- A7 上下篇 ---------- */
.pager-wrap{max-width:760px;margin:0 auto;padding:56px 0 8px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.pager-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.pager-card:hover{transform:translateY(-3px);border-color:rgba(255,61,119,.35);box-shadow:var(--sh-2)}
.pager-card .lab{font-size:.75rem;color:var(--ink-500);letter-spacing:.08em;display:block;margin-bottom:6px}
.pager-card .val{font-size:.9375rem;font-weight:700;color:var(--ink-900);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pager-back{text-align:center;margin-top:24px;font-size:.9375rem;font-weight:600}

/* ---------- 底部精简 CTA ---------- */
.mini-cta{
  max-width:760px;margin:48px auto 0;padding:27px 32px;border-radius:var(--r-xl);
  background:var(--brand-grad-soft);border:1px solid rgba(255,61,119,.14);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.mini-cta h2{font-size:1.125rem;margin-bottom:4px;letter-spacing:-.01em}
.mini-cta p{margin:0;font-size:.875rem;color:var(--ink-500)}

/* ---------- 页脚 ---------- */
.site-footer{background:#171320;color:#C9C1D6;padding:56px 0 24px;margin-top:72px}
.site-footer h4{color:#fff;font-size:.9375rem;margin-bottom:14px;letter-spacing:.02em}
.site-footer p{font-size:.875rem;line-height:1.8;color:#A79FBA;margin:0}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand strong{color:#fff;font-size:1rem;font-weight:800}
.foot-links{list-style:none;margin:0;padding:0}
.foot-links li{margin-bottom:10px}
.foot-links a{color:#A79FBA;font-size:.875rem}
.foot-links a:hover{color:#fff}
.foot-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:.75rem;color:#8A8299;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .grid-container{max-width:1140px}
}
@media (max-width:1023px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .site-main{margin-left:0}
  .grid-container{padding-left:24px;padding-right:24px}
  .article-head{padding-top:40px}
  .related{padding:56px 0}
}
@media (max-width:767px){
  .article-head h1{font-size:1.75rem}
  .keypoints{padding:22px 20px}
  .article-body{font-size:1rem;line-height:1.85}
  .author-card{flex-wrap:wrap;padding:20px}
  .author-card .author-badge{margin-left:0}
  .pager{grid-template-columns:1fr}
  .mini-cta{padding:22px 20px}
  .rec-body{padding:16px}
}
@media (max-width:519px){
  .grid-container{padding-left:18px;padding-right:18px}
  .article-head h1{font-size:1.5rem}
  .meta-row{font-size:.75rem;gap:8px 14px}
  .crumbs .cur{max-width:30ch}
  .site-footer{padding:40px 0 20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --brand-a:#FF6B3D;
  --brand-b:#FF3D77;
  --brand-c:#7A5CFF;
  --brand-grad:linear-gradient(120deg,#FF6B3D 0%,#FF3D77 55%,#7A5CFF 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,107,61,.12),rgba(122,92,255,.12));
  --ink-900:#171320;
  --ink-700:#3A3346;
  --ink-500:#6B6379;
  --line:#ECE7F2;
  --bg:#FFFFFF;
  --bg-soft:#FFF7F3;
  --bg-alt:#F7F4FF;
  --success:#12B886;
  --warn:#FFB020;
  --danger:#F03E3E;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --sh-1:0 2px 8px rgba(23,19,32,.05);
  --sh-2:0 12px 32px rgba(255,61,119,.10);
  --sh-3:0 24px 60px rgba(122,92,255,.16);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-b);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-a)}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(255,61,119,.35);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--ink-900)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
.grid-container{max-width:1200px;padding-left:40px;padding-right:40px;margin-left:auto;margin-right:auto}
.sec{position:relative;padding:88px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.sec-title{font-size:clamp(1.5rem,2.4vw,2.125rem);line-height:1.3;font-weight:700}
.sec-lead{font-size:1.0625rem;color:var(--ink-500);max-width:52ch;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--brand-b);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand-grad);border-radius:2px}
/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--side-w);height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 22px;overflow-y:auto;z-index:60;
}
.brand-block{height:96px;display:flex;flex-direction:column;justify-content:center;gap:2px;padding:0 6px;border-bottom:1px solid var(--line);margin-bottom:18px}
.brand-mark{display:flex;align-items:center;gap:8px}
.brand-dot{width:26px;height:26px;border-radius:9px;background:var(--brand-grad);box-shadow:var(--sh-2);flex:none;position:relative}
.brand-dot::after{content:"";position:absolute;inset:7px;border-radius:3px;background:rgba(255,255,255,.85)}
.brand-name{font-size:1.05rem;font-weight:800;color:var(--ink-900);letter-spacing:-.01em;line-height:1.2}
.brand-sub{font-size:.75rem;color:var(--ink-500);letter-spacing:.04em;padding-left:34px}
.nav-label{font-size:.6875rem;letter-spacing:.14em;color:var(--ink-500);padding:0 8px;margin-bottom:8px}
.nav-list{list-style:none;margin:0 0 22px;padding:0}
.nav-list li{margin:0 0 6px}
.nav-list a{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;border-radius:var(--r-sm);
  color:var(--ink-700);font-size:.9375rem;font-weight:600;position:relative;
  transition:background .2s ease,color .2s ease;
}
.nav-list a::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand-grad);opacity:0;transition:opacity .2s ease}
.nav-list a:hover,.nav-list a:focus-visible{background:var(--bg-soft);color:var(--brand-b)}
.nav-list a.active{background:var(--brand-grad-soft);color:var(--brand-b)}
.nav-list a.active::before{opacity:1}
.side-note{display:inline-flex;align-self:flex-start;margin:0 0 14px}
.side-cta{display:block;text-align:center;padding:13px 16px;border-radius:999px;background:var(--brand-grad);color:#fff;font-weight:700;font-size:.9375rem;box-shadow:var(--sh-2);transition:transform .2s ease,filter .2s ease}
.side-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.side-cta:active{transform:translateY(0) scale(.98)}
/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:.8125rem;font-weight:600;line-height:1.4}
.badge-grad{background:var(--brand-grad);color:#fff}
.badge-soft{background:var(--brand-grad-soft);color:var(--brand-b)}
.badge-status{background:rgba(18,184,134,.12);color:var(--success)}
.badge-status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--success)}
.badge-warn{background:rgba(255,176,32,.14);color:#B87A00}
.badge-warn::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--warn)}
/* ---------- 移动端顶部条与抽屉 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;height:64px;align-items:center;justify-content:space-between;
  padding:0 18px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-bar .brand-name{font-size:1rem}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
  padding:0;transition:border-color .2s ease,background .2s ease;
}
.menu-btn:hover{border-color:var(--brand-b);background:var(--bg-soft)}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900)}
.drawer{
  position:fixed;top:0;bottom:0;left:0;width:284px;background:#fff;z-index:120;padding:24px 18px;
  transform:translateX(-102%);transition:transform .3s ease;overflow-y:auto;box-shadow:var(--sh-3);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(23,19,32,.45);z-index:110;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer .brand-block{border-bottom:1px solid var(--line)}
/* ---------- 主体容器 ---------- */
.site-main{margin-left:var(--side-w)}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:.9375rem;font-weight:700;line-height:1;
  border:1.5px solid transparent;cursor:pointer;text-align:center;min-height:44px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.98)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-ghost:hover{color:var(--brand-b);border-color:var(--brand-b);background:var(--bg-soft);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-sm{padding:9px 18px;font-size:.8125rem;min-height:38px}
/* ---------- C1 分类页头 ---------- */
.page-head{
  position:relative;overflow:hidden;padding:44px 0 46px;
  background:linear-gradient(135deg,rgba(255,247,243,.95),rgba(247,244,255,.95)),url('/assets/images/be459d1f0d1fd34d.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.ph-glow{position:absolute;top:-160px;right:-120px;width:380px;height:380px;border-radius:50%;background:var(--brand-grad);opacity:.14;filter:blur(6px);pointer-events:none}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--ink-500);margin-bottom:14px;position:relative}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-b)}
.crumb .sep{color:rgba(107,99,121,.5)}
.ph-title{font-size:clamp(1.75rem,3vw,2.5rem);line-height:1.2;font-weight:800;letter-spacing:-.02em;margin:0 0 12px;position:relative}
.ph-lead{font-size:1rem;color:var(--ink-500);max-width:62ch;margin:0 0 18px;position:relative}
.ph-badges{display:flex;flex-wrap:wrap;gap:10px;position:relative}
/* ---------- C2 列表卡栅格 ---------- */
.card-grid > .cell{margin-bottom:24px;display:flex}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;display:flex;flex-direction:column;width:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,61,119,.35)}
.pc-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);position:relative}
.pc-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .pc-media img{transform:scale(1.04)}
.pc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pc-badge{align-self:flex-start}
.pc-title{font-size:1.0625rem;line-height:1.5;font-weight:700;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-title a{color:var(--ink-900)}
.pc-title a:hover{color:var(--brand-b)}
.pc-desc{font-size:.875rem;line-height:1.7;color:var(--ink-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--ink-500)}
.pc-foot a{font-weight:600;white-space:nowrap}
.list-more{display:flex;justify-content:center;margin-top:14px}
.empty-state{
  text-align:center;padding:56px 24px;background:var(--bg-alt);border:1px dashed var(--line);
  border-radius:var(--r-lg);color:var(--ink-500);
}
.empty-state .empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:18px;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;font-weight:800;color:var(--brand-b);font-size:1.25rem}
.empty-state p{margin:0 0 14px;font-size:.9375rem}
/* ---------- C3 要点速览 ---------- */
.point-grid > .cell{margin-bottom:24px;display:flex}
.point-item{display:flex;gap:14px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);width:100%;transition:transform .25s ease,box-shadow .25s ease}
.point-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.point-num{font-size:1.25rem;font-weight:800;line-height:1;flex:none;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums;padding-top:4px}
.point-item h3{font-size:1rem;font-weight:700;margin:0 0 6px;line-height:1.5}
.point-item p{font-size:.875rem;line-height:1.7;color:var(--ink-500);margin:0}
/* ---------- C4 标签带 ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag{
  display:inline-flex;align-items:center;padding:9px 18px;border-radius:999px;
  background:var(--brand-grad-soft);color:var(--brand-b);font-size:.875rem;font-weight:600;
  border:1px solid transparent;cursor:default;
  transition:background .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tag:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
/* ---------- C5 三步流程 ---------- */
.steps{display:flex;gap:28px;flex-wrap:wrap}
.step{flex:1 1 260px;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{width:44px;height:44px;border-radius:14px;background:var(--brand-grad);color:#fff;font-weight:800;font-size:1.0625rem;display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-variant-numeric:tabular-nums}
.step h3{font-size:1.0625rem;margin:0 0 8px}
.step p{font-size:.9375rem;color:var(--ink-500);margin:0;line-height:1.75}
@media screen and (min-width:1024px){
  .step:not(:last-child)::after{content:"→";position:absolute;right:-22px;top:50%;transform:translateY(-50%);color:rgba(255,61,119,.45);font-weight:700;font-size:1.1rem}
}
/* ---------- C6 数据统计 ---------- */
.stat-grid > .cell{margin-bottom:24px;display:flex}
.stat-card{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:26px 20px;text-align:center;transition:transform .25s ease,box-shadow .25s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.stat-num{font-size:1.75rem;font-weight:800;line-height:1.2;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stat-label{font-size:.8125rem;color:var(--ink-500);margin-top:6px}
/* ---------- C7 FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  margin-bottom:14px;overflow:hidden;position:relative;transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:rgba(255,61,119,.25)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 60px 20px 26px;font-weight:700;font-size:1rem;
  color:var(--ink-900);position:relative;min-height:44px;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-grad);opacity:0;transition:opacity .2s ease}
.faq-item[open] summary::before{opacity:1}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:1.25rem;font-weight:700;color:var(--brand-b);line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-answer{padding:0 26px 22px;font-size:.9375rem;color:var(--ink-500);line-height:1.8}
/* ---------- C8 返回与推荐 ---------- */
.entry-grid > .cell{margin-bottom:24px;display:flex}
.entry-card{
  display:flex;gap:18px;align-items:flex-start;width:100%;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:rgba(255,61,119,.35)}
.entry-icon{width:52px;height:52px;border-radius:16px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.0625rem;flex:none}
.entry-body h3{font-size:1.0625rem;margin:0 0 8px;color:var(--ink-900)}
.entry-body p{font-size:.9375rem;color:var(--ink-500);margin:0 0 14px;line-height:1.75}
.entry-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:.9375rem;color:var(--brand-b);min-height:32px}
.entry-link:hover{color:var(--brand-a);text-decoration:underline;text-underline-offset:3px}
/* ---------- 页脚 ---------- */
.site-footer{background:#171320;color:rgba(255,255,255,.72);padding:64px 0 28px;position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-grad)}
.site-footer h4{color:#fff;font-size:.9375rem;font-weight:700;margin:0 0 14px;letter-spacing:.02em}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand strong{color:#fff;font-size:1.0625rem;letter-spacing:-.01em}
.site-footer p{font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.62);max-width:44ch;margin:0}
.foot-links{list-style:none;margin:0;padding:0}
.foot-links li{margin-bottom:10px}
.foot-links a{color:rgba(255,255,255,.72);font-size:.875rem}
.foot-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.foot-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;
  font-size:.8125rem;color:rgba(255,255,255,.5);
}
/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s ease,transform .4s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .post-card,.point-item,.step,.stat-card,.entry-card,.tag,.btn{transition:none}
}
/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .grid-container{max-width:1140px}
}
@media screen and (max-width:1023px){
  .side-nav{display:none}
  .site-main{margin-left:0}
  .mobile-bar{display:flex}
  .grid-container{padding-left:24px;padding-right:24px}
  .sec{padding:64px 0}
  .page-head{padding:36px 0 38px}
  .steps{gap:18px}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:18px;padding-right:18px}
  .sec{padding:48px 0}
  .ph-title{font-size:1.75rem}
  .ph-lead{font-size:.9375rem}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .sec-lead{max-width:100%}
  .pc-body{padding:18px 18px 20px}
  .entry-card{flex-direction:column;padding:22px}
  .foot-bottom{flex-direction:column;gap:6px}
  .site-footer{padding:48px 0 24px}
  .step{padding:22px}
}