/* roulang page: index */
:root{
  --brand-600:#0B8E78;
  --brand-500:#10A98F;
  --brand-100:#E4F5F1;
  --accent-500:#FF6A3D;
  --accent-600:#E8562B;
  --accent-100:#FFEDE5;
  --gold:#FFC93C;
  --ink-900:#10131A;
  --ink-800:#1B1F28;
  --text-900:#1A1D24;
  --text-700:#3D434E;
  --text-500:#6E7681;
  --line:#E5E8E6;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --danger:#D64545;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(16,19,26,.05),0 2px 8px rgba(16,19,26,.05);
  --shadow-2:0 6px 16px rgba(16,19,26,.07),0 14px 32px rgba(16,19,26,.07);
  --shadow-3:0 14px 34px rgba(16,19,26,.12),0 28px 64px rgba(16,19,26,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:200ms;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text-700);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.3;letter-spacing:-0.01em}
h1{font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
strong{font-weight:700}
svg{flex:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}

/* ---------- 布局容器 ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media(min-width:1280px){.container{max-width:1264px;padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;min-width:120px;padding:0 22px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15.5px;font-weight:600;line-height:1;white-space:nowrap;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(255,106,61,.26)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,106,61,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(255,106,61,.24)}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--text-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;min-width:0;padding:0 16px;font-size:14.5px}
.btn-block{width:100%}

/* ---------- 徽章 / 标签 ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:var(--radius-pill);padding:4px 10px;font-size:12.5px;font-weight:600;line-height:1.5}
.pill-cat{background:var(--brand-100);color:var(--brand-600)}
.pill-rec{background:var(--accent-500);color:#fff}
.pill-neutral{background:var(--bg);color:var(--text-500);border:1px solid var(--line)}

/* ---------- 站点页头 ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:60}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-900);font-size:18px;font-weight:800;letter-spacing:-0.01em}
.brand:hover{color:var(--text-900);text-decoration:none}
.brand-mark{width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--brand-500),var(--brand-600));display:grid;place-items:center;color:#fff;box-shadow:0 4px 12px rgba(11,142,120,.28)}
.brand-text{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.brand-badge{font-size:11px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:var(--radius-pill);padding:2px 8px}
.search{position:relative;flex:1 1 auto;max-width:280px;min-width:0;margin-left:auto}
.search .search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-500);pointer-events:none}
.search input{width:100%;height:42px;padding:0 14px 0 40px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--bg);color:var(--text-900);font-size:14.5px;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease)}
.search input::placeholder{color:var(--text-500)}
.search input:focus{outline:none;background:var(--surface);border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.18)}
.topbar-actions{display:flex;align-items:center;gap:16px}
.link-quiet{font-size:14.5px;font-weight:600;color:var(--text-700)}
.link-quiet:hover{color:var(--brand-600);text-decoration:none}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);place-items:center;color:var(--text-900);background:var(--surface)}
.nav-toggle:hover{border-color:var(--brand-500);color:var(--brand-600)}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface);padding:6px 0 14px}
.mobile-menu.is-open{display:block}
.mobile-menu a{display:block;padding:12px 0;font-size:15.5px;font-weight:500;color:var(--text-900)}
.mobile-menu a.is-active{color:var(--brand-600)}
.mobile-menu a:hover{color:var(--brand-600);text-decoration:none}

/* ---------- 频道 Tabs ---------- */
.chan-tabs{position:sticky;top:0;z-index:55;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--dur) var(--ease)}
.chan-tabs.is-stuck{box-shadow:var(--shadow-1)}
.chan-tabs-inner{display:flex;align-items:center;gap:4px;height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;scroll-snap-type:x proximity}
.chan-tabs-inner::-webkit-scrollbar{display:none}
.chan-tab{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 16px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-500);white-space:nowrap;scroll-snap-align:start;transition:color var(--dur) var(--ease),background-color var(--dur) var(--ease)}
.chan-tab:hover{color:var(--brand-600);background:var(--brand-100);text-decoration:none}
.chan-tab.is-active{color:var(--text-900);font-weight:600}
.chan-tab.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent-500)}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;padding:68px 0 0}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(680px 420px at 10% 6%,rgba(16,169,143,.18),transparent 62%),
  radial-gradient(560px 380px at 90% 82%,rgba(255,106,61,.15),transparent 65%)}
.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:56px;align-items:center;padding-bottom:60px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#B6EFE4;background:rgba(16,169,143,.16);border:1px solid rgba(16,169,143,.42);border-radius:var(--radius-pill);padding:5px 12px;margin-bottom:22px}
.hero h1{font-size:clamp(31px,4.4vw,56px);line-height:1.15;font-weight:800;color:#fff;letter-spacing:-0.01em}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.76);max-width:54ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:20px 44px;margin-top:44px}
.hero-stats li{display:flex;flex-direction:column;gap:2px}
.hero-stats strong{font-size:28px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-0.01em}
.hero-stats span{font-size:13.5px;color:rgba(255,255,255,.62)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-3)}
.hero-visual::after{content:"";position:absolute;inset:0;border-radius:var(--radius-card);pointer-events:none;background:linear-gradient(180deg,rgba(16,19,26,.2),rgba(16,19,26,.66))}
.float-card{position:absolute;left:20px;right:20px;bottom:20px;z-index:2;background:rgba(255,255,255,.97);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow-3)}
.float-card h3{font-size:14.5px;font-weight:700;color:var(--text-900);display:flex;align-items:center;justify-content:space-between;gap:12px}
.float-card h3 span{font-size:12px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:var(--radius-pill);padding:2px 8px}
.float-list{margin-top:12px;display:grid;gap:10px}
.float-list li{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-700)}
.float-list .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-500);flex:none}
.float-list .dot.alt{background:var(--accent-500)}
.float-list .bar{flex:1;height:6px;border-radius:6px;background:var(--bg);overflow:hidden}
.float-list .bar i{display:block;height:100%;border-radius:6px;background:var(--brand-500)}
.float-list .bar i.alt{background:var(--accent-500)}
.hero-trust{position:relative;border-top:1px solid rgba(255,255,255,.12);padding:22px 0}
.hero-trust ul{display:flex;flex-wrap:wrap;gap:14px 34px}
.hero-trust li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-trust svg{color:var(--brand-500)}

/* ---------- 板块通用 ---------- */
.sec{padding:92px 0}
.sec-surface{background:var(--surface)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.sec-head-main{max-width:70ch}
.sec-head h2{font-size:clamp(23px,2.6vw,32px)}
.sec-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-700)}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);white-space:nowrap}
.more-link:hover{color:var(--brand-500);text-decoration:underline}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:var(--radius-pill);padding:4px 12px;margin-bottom:16px}

/* ---------- 功能分组 A：左图右行 ---------- */
.feature-split{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}
.feature-figure{position:relative}
.feature-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-2)}
.feature-rows{display:grid;gap:20px}
.feature-row{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.feature-row:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D9E2DF}
.icon-badge{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--brand-100);color:var(--brand-600)}
.feature-row h3{font-size:18.5px;font-weight:600}
.feature-row p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-700)}
.feature-row .card-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:14px;font-weight:600;color:var(--brand-600)}

/* ---------- 功能分组 B：交错卡片 ---------- */
.stagger{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.stagger > .card:nth-child(2),
.stagger > .card:nth-child(4){margin-top:44px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D9E2DF}
.card h3{font-size:19px;font-weight:600;margin-top:18px}
.card p{margin-top:10px;font-size:14.8px;line-height:1.8;color:var(--text-700)}
.card .card-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:600;color:var(--brand-600)}

/* ---------- 功能分组 C：图标横条 ---------- */
.icon-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.icon-strip > li{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 20px;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.icon-strip > li:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D9E2DF}
.icon-strip svg{color:var(--brand-600)}
.icon-strip h3{font-size:16.5px;font-weight:600;margin-top:16px}
.icon-strip p{margin-top:8px;font-size:14px;line-height:1.78;color:var(--text-700)}

/* ---------- 使用场景 ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.scene + .scene{margin-top:64px}
.scene--rev .scene-media{grid-column:2;grid-row:1}
.scene--rev .scene-copy{grid-column:1;grid-row:1}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-2);transition:transform 220ms var(--ease)}
.scene-media:hover img{transform:scale(1.02)}
.scene-copy h3{font-size:24px;font-weight:700;margin-top:16px}
.scene-copy .scene-text{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-700)}
.scene-feats{margin-top:20px;display:grid;gap:10px}
.scene-feats li{display:flex;gap:10px;font-size:14.8px;line-height:1.75;color:var(--text-700)}
.scene-feats svg{margin-top:6px;color:var(--brand-500)}
.scene-copy .btn{margin-top:26px}

/* ---------- 案例 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;background:var(--ink-900);border-radius:var(--radius-card);padding:30px 28px;margin-bottom:40px}
.stat-band li{display:flex;flex-direction:column;gap:4px}
.stat-band strong{font-size:26px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-0.01em}
.stat-band strong em{font-style:normal;font-size:15px;font-weight:600;color:var(--brand-500);margin-left:4px}
.stat-band span{font-size:13.5px;color:rgba(255,255,255,.6)}
.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.case-card{display:flex;flex-direction:column;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px 24px;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease)}
.case-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.case-quote{font-size:16.5px;line-height:1.78;color:var(--text-900);font-weight:500}
.case-metrics{display:flex;flex-wrap:wrap;gap:22px}
.case-metrics li{display:flex;flex-direction:column}
.case-metrics strong{font-size:20px;font-weight:800;color:var(--accent-500);font-variant-numeric:tabular-nums}
.case-metrics span{font-size:12.5px;color:var(--text-500)}
.case-person{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.case-logo{width:44px;height:44px;border-radius:11px;background:linear-gradient(135deg,#EEF2F1,#DBE4E2);flex:none}
.case-person b{display:block;font-size:14.5px;font-weight:600;color:var(--text-900)}
.case-person em{display:block;font-style:normal;font-size:12.5px;color:var(--text-500)}

/* ---------- 价格 ---------- */
.billing-toggle{display:inline-flex;align-items:center;gap:4px;background:var(--brand-100);border-radius:var(--radius-pill);padding:4px;margin-bottom:36px}
.billing-toggle button{height:36px;padding:0 20px;border-radius:var(--radius-pill);font-size:14.5px;font-weight:600;color:var(--brand-600);transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.billing-toggle button.is-active{background:var(--surface);color:var(--text-900);box-shadow:var(--shadow-1)}
.billing-toggle button:hover{color:var(--brand-500)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
.price-card{position:relative;display:flex;flex-direction:column;gap:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:30px 26px;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease)}
.price-card:hover{box-shadow:var(--shadow-2)}
.price-card--featured{border:2px solid var(--accent-500);transform:scale(1.02);box-shadow:var(--shadow-3);z-index:2}
.price-card--featured:hover{box-shadow:var(--shadow-3)}
.price-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.price-head h3{font-size:18px;font-weight:700}
.price-amount{display:flex;align-items:baseline;gap:6px}
.price-amount strong{font-size:40px;font-weight:800;color:var(--text-900);font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.price-amount span{font-size:14px;color:var(--text-500)}
.price-desc{font-size:14px;color:var(--text-500);margin-top:-8px}
.price-list{display:grid;gap:2px}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.6px;line-height:1.7;padding:5px 0}
.price-list svg{margin-top:5px}
.price-list .yes{color:var(--brand-600)}
.price-list .no{color:var(--text-500)}
.price-list .muted{color:var(--text-500)}
.price-card .btn{margin-top:auto}
.price-note{margin-top:22px;font-size:13.5px;color:var(--text-500)}

/* ---------- 资讯（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;align-items:start}
.news-side{display:grid;gap:20px}
.card-post{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.card-post:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#D9E2DF}
.card-post .post-link{display:block;color:inherit}
.card-post .post-link:hover{color:inherit;text-decoration:none}
.post-media{overflow:hidden;background:linear-gradient(135deg,rgba(16,169,143,.16),rgba(255,106,61,.16))}
.post-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms var(--ease)}
.card-post:hover .post-media img{transform:scale(1.02)}
.card-post--lead .post-media img{aspect-ratio:16/9}
.post-body{padding:20px 22px 24px;display:grid;gap:10px;justify-items:start}
.post-body h3{font-size:17.5px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-post--lead .post-body h3{font-size:21px;-webkit-line-clamp:3}
.post-body p{font-size:14.5px;line-height:1.78;color:var(--text-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-time{font-size:13px;color:var(--text-500)}
.card-post--mini .post-link{display:grid;grid-template-columns:132px minmax(0,1fr);gap:0}
.card-post--mini .post-media,.card-post--mini .post-body{padding:0}
.card-post--mini .post-media img{aspect-ratio:16/10;height:100%}
.card-post--mini .post-body{padding:16px 18px;gap:8px}
.card-post--mini .post-body h3{font-size:15.5px}
.card-post--mini .post-body p{-webkit-line-clamp:2}
.empty-state{display:grid;place-items:center;gap:14px;text-align:center;padding:64px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card)}
.empty-state svg{color:var(--text-500)}
.empty-state p{font-size:15px;color:var(--text-500)}
.empty-state .btn{margin-top:4px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.faq-item:hover{border-color:#D9E2DF}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--text-900);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{color:var(--text-500);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease)}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand-600)}
.faq-item .faq-body{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text-700)}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--ink-900);color:#fff;overflow:hidden;padding:64px 0}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;background:
  repeating-linear-gradient(115deg,rgba(255,255,255,.028) 0 2px,transparent 2px 14px),
  radial-gradient(560px 320px at 88% 20%,rgba(255,106,61,.16),transparent 65%),
  radial-gradient(520px 320px at 6% 90%,rgba(16,169,143,.18),transparent 62%)}
.cta-band-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-band h2{color:#fff;font-size:clamp(23px,2.6vw,32px)}
.cta-band p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.72);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.68)}
.foot-top{border-bottom:1px solid rgba(255,255,255,.12);padding:64px 0 48px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.foot-brand:hover{color:#fff;text-decoration:none}
.foot-intro{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:34ch}
.foot-sub{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.foot-sub input{flex:1 1 180px;height:44px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14.5px}
.foot-sub input::placeholder{color:rgba(255,255,255,.45)}
.foot-sub input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.22)}
.foot-sub .btn{min-width:0;padding:0 18px;height:44px}
.foot-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.foot-col ul{display:grid;gap:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66)}
.foot-col a:hover{color:#fff;text-decoration:none}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:22px 0;font-size:13.5px;color:rgba(255,255,255,.5)}

/* ---------- 滚动入场 ---------- */
.reveal{opacity:0;transform:translateY(10px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .feature-split{grid-template-columns:1fr;gap:32px}
  .stagger > .card:nth-child(2),.stagger > .card:nth-child(4){margin-top:0}
  .icon-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene{grid-template-columns:1fr;gap:28px}
  .scene--rev .scene-media{grid-column:1;grid-row:auto}
  .scene--rev .scene-copy{grid-column:1;grid-row:auto}
  .scene + .scene{margin-top:48px}
  .pricing-grid{grid-template-columns:1fr}
  .price-card--featured{transform:none}
  .news-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .case-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:34px}
}
@media(max-width:767px){
  body{font-size:15.5px;line-height:1.9}
  .topbar-inner{gap:12px;height:56px}
  .search{display:none}
  .nav-toggle{display:grid}
  .topbar-actions .link-quiet{display:none}
  .topbar-actions .btn-sm{padding:0 14px;font-size:14px}
  .hero{padding-top:48px}
  .hero-inner{padding-bottom:44px}
  .hero-stats{gap:18px 30px;margin-top:34px}
  .hero-stats strong{font-size:24px}
  .hero-cta .btn{width:100%}
  .hero-trust ul{gap:12px 20px}
  .sec{padding:56px 0}
  .feature-row{grid-template-columns:40px 1fr;padding:20px}
  .icon-badge{width:40px;height:40px;border-radius:11px}
  .stagger{grid-template-columns:1fr}
  .icon-strip{grid-template-columns:1fr}
  .card-post--mini .post-link{grid-template-columns:112px minmax(0,1fr)}
  .stat-band{padding:22px 20px;gap:16px}
  .case-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .cta-band-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .price-amount strong{font-size:34px}
}
@media(max-width:480px){
  .container{padding:0 18px}
  .hero h1{font-size:29px}
  .sec-head h2{font-size:22px}
  .scene-copy h3{font-size:20px}
  .float-card{left:12px;right:12px;bottom:12px;padding:14px}
  .stat-band{grid-template-columns:1fr 1fr}
  .billing-toggle{width:100%}
  .billing-toggle button{flex:1}
}

/* roulang page: article */
:root{
  --brand-600:#0B8E78;
  --brand-500:#10A98F;
  --brand-100:#E4F5F1;
  --accent-500:#FF6A3D;
  --accent-100:#FFEDE5;
  --gold:#FFC93C;
  --ink-900:#10131A;
  --ink-800:#1B1F28;
  --text-900:#1A1D24;
  --text-700:#3D434E;
  --text-500:#6E7681;
  --line:#E5E8E6;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --danger:#D64545;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,19,26,.05),0 4px 12px rgba(16,19,26,.05);
  --shadow-2:0 6px 18px rgba(16,19,26,.09);
  --shadow-3:0 18px 44px rgba(16,19,26,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);}
a:hover{color:var(--brand-500);}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(16,169,143,.35);border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);}
@media (min-width:1280px){:root{--gutter:32px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:120px;height:46px;padding:0 22px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .16s var(--ease),background-color .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease),color .16s var(--ease);
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(255,106,61,.24);}
.btn-primary:hover{background:#F0562A;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,61,.3);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:var(--surface);color:var(--text-900);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;min-width:96px;padding:0 16px;font-size:14px;}

/* ---------- 标签与徽章 ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6;}
.pill-brand{background:var(--brand-100);color:var(--brand-600);}
.pill-neutral{background:#EEF0EF;color:var(--text-700);}
.pill-accent{background:var(--accent-500);color:#fff;}

/* ---------- 头部导航 ---------- */
.site-header{position:relative;background:var(--surface);border-bottom:1px solid var(--line);z-index:80;}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-900);font-weight:800;font-size:18px;letter-spacing:-.01em;}
.brand:hover{color:var(--text-900);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-500),#0B8E78);color:#fff;
}
.brand-text{display:inline-flex;align-items:center;gap:6px;}
.brand-badge{
  font-style:normal;font-size:11.5px;font-weight:600;letter-spacing:.02em;
  padding:2px 7px;border-radius:999px;background:var(--brand-100);color:var(--brand-600);
}
.site-search{position:relative;flex:0 1 280px;margin-left:auto;}
.site-search input{
  width:100%;height:42px;padding:0 42px 0 14px;
  border:1px solid var(--line);border-radius:10px;background:var(--bg);
  font-size:14px;color:var(--text-900);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background-color .18s var(--ease);
}
.site-search input::placeholder{color:var(--text-500);}
.site-search input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.15);}
.search-icon{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--text-500);display:inline-flex;}
.topbar-actions{display:flex;align-items:center;gap:16px;}
.link-quiet{font-size:14px;font-weight:600;color:var(--text-700);}
.link-quiet:hover{color:var(--brand-600);}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-900);transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{display:none;}

.chan-tabs{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(6px);}
.chan-tabs-inner{display:flex;align-items:center;gap:8px;height:48px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;scroll-snap-type:x proximity;}
.chan-tabs-inner::-webkit-scrollbar{display:none;}
.chan-tab{
  position:relative;flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:14.5px;font-weight:500;color:var(--text-500);border-radius:8px;
}
.chan-tab:hover{color:var(--text-900);background:var(--brand-100);}
.chan-tab.is-active{color:var(--text-900);font-weight:600;}
.chan-tab.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--accent-500);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:22px 0 0;font-size:13.5px;color:var(--text-500);}
.breadcrumb a{color:var(--text-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#C6CBC8;}
.breadcrumb .current{color:var(--text-700);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-main{padding:28px 0 88px;}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:56px;align-items:start;}
.article-col{min-width:0;max-width:768px;}
.article-head{padding-bottom:24px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:36px;line-height:1.32;font-weight:800;letter-spacing:-.01em;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;margin-top:18px;font-size:13.5px;color:var(--text-500);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6CBC8;}
.article-hero-img{margin:28px 0 0;}
.article-hero-img img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1);}
.article-hero-img figcaption{margin-top:10px;font-size:12.5px;color:var(--text-500);}

.article-toc-mobile{display:none;margin:22px 0 0;border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:4px 16px;}
.article-toc-mobile summary{cursor:pointer;list-style:none;padding:12px 0;font-size:14.5px;font-weight:600;color:var(--text-900);display:flex;align-items:center;justify-content:space-between;}
.article-toc-mobile summary::-webkit-details-marker{display:none;}
.article-toc-mobile summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--text-500);border-bottom:2px solid var(--text-500);transform:rotate(45deg);transition:transform .2s var(--ease);}
.article-toc-mobile[open] summary::after{transform:rotate(-135deg);}
.article-toc-mobile .toc-list{padding-bottom:12px;border-top:1px solid var(--line);padding-top:8px;}

.article-body{margin-top:32px;font-size:17px;line-height:1.9;color:var(--text-700);}
.article-body > * + *{margin-top:1.25em;}
.article-body h2{
  font-size:25px;line-height:1.4;font-weight:700;color:var(--text-900);
  margin-top:1.9em;scroll-margin-top:96px;
}
.article-body h2::before{content:"";display:block;width:34px;height:3px;border-radius:2px;background:var(--accent-500);margin-bottom:12px;}
.article-body h3{font-size:20px;font-weight:600;color:var(--text-900);margin-top:1.6em;scroll-margin-top:96px;}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--brand-500);}
.article-body strong{color:var(--text-900);font-weight:600;}
.article-body ul,.article-body ol{padding-left:1.4em;}
.article-body li + li{margin-top:.4em;}
.article-body li::marker{color:var(--brand-500);}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--brand-500);
  background:var(--brand-100);border-radius:0 12px 12px 0;color:var(--text-900);
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:var(--radius-img);margin:1.6em 0;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--text-500);text-align:center;margin-top:8px;}
.article-body th{background:var(--bg);text-align:left;font-weight:600;color:var(--text-900);}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);font-size:15px;}
.article-body thead th{border-bottom:1px solid var(--line);}
.article-body .tip{margin:1.6em 0;padding:16px 20px;border-radius:12px;border-left:3px solid var(--brand-500);background:var(--brand-100);color:var(--text-900);font-size:15.5px;}
.article-body .tip-warn{border-left-color:var(--accent-500);background:var(--accent-100);}
.article-body .tip-done{border-left-color:var(--brand-600);background:#EFF7F4;}
.article-body code{background:#EEF0EF;border-radius:6px;padding:2px 6px;font-size:14.5px;}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.article-tags .tag-label{font-size:13px;font-weight:600;color:var(--text-500);}

.article-aside{position:sticky;top:88px;}
.article-toc{border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:18px;box-shadow:var(--shadow-1);}
.toc-title{font-size:13px;font-weight:600;color:var(--text-500);letter-spacing:.05em;margin-bottom:10px;}
.toc-list{display:block;}
.toc-list a{display:block;padding:7px 0 7px 12px;border-left:2px solid var(--line);font-size:14px;color:var(--text-500);line-height:1.5;}
.toc-list a:hover{color:var(--brand-600);background:var(--brand-100);}
.toc-list a.lvl-3{padding-left:24px;font-size:13.5px;}
.toc-list a.is-current{color:var(--text-900);font-weight:600;border-left-color:var(--accent-500);}
.toc-empty{font-size:13.5px;color:var(--text-500);}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:64px 24px;background:var(--surface);
  border:1px dashed var(--line);border-radius:var(--radius-card);
}
.empty-state .empty-icon{width:56px;height:56px;border-radius:16px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;background:var(--brand-100);color:var(--brand-600);}
.empty-state h2{font-size:22px;}
.empty-state p{margin-top:10px;font-size:15px;color:var(--text-500);}
.empty-state .btn{margin-top:22px;}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0;background:var(--surface);border-top:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-head h2{font-size:30px;font-weight:700;letter-spacing:-.01em;}
.sec-head p{margin-top:8px;font-size:15px;color:var(--text-500);}
.more-link{font-size:14.5px;font-weight:600;color:var(--brand-600);white-space:nowrap;}
.more-link:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-post{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card-post:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D8DEDB;}
.card-post .thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,rgba(16,169,143,.16),rgba(255,106,61,.16));}
.card-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card-post:hover .thumb img{transform:scale(1.02);}
.card-post .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-post h3{font-size:18px;font-weight:600;line-height:1.5;}
.card-post h3 a{color:var(--text-900);}
.card-post h3 a:hover{color:var(--brand-600);}
.card-post .excerpt{font-size:14px;color:var(--text-500);line-height:1.7;}
.card-post time{font-size:12.5px;color:var(--text-500);}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;background:var(--ink-900);color:#fff;padding:72px 0;overflow:hidden;}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 300px at 12% 22%, rgba(16,169,143,.18), transparent 70%),
    radial-gradient(520px 280px at 88% 78%, rgba(255,106,61,.16), transparent 70%),
    repeating-linear-gradient(115deg, rgba(255,255,255,.035) 0 2px, transparent 2px 18px);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-inner h2{color:#fff;font-size:30px;font-weight:700;letter-spacing:-.01em;}
.cta-inner p{margin-top:10px;font-size:16px;color:rgba(255,255,255,.76);max-width:52ch;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);}
.foot-top{border-top:1px solid rgba(255,255,255,.09);padding:64px 0 40px;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.foot-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;}
.foot-brand:hover{color:#fff;}
.foot-intro{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:38ch;}
.foot-sub{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap;}
.foot-sub input{
  flex:1 1 180px;height:44px;padding:0 14px;border-radius:10px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;font-size:14px;
}
.foot-sub input::placeholder{color:rgba(255,255,255,.45);}
.foot-sub input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.22);}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.foot-col ul{list-style:none;}
.foot-col li + li{margin-top:10px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.62);}
.foot-col a:hover{color:#fff;}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 24px 28px;border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:rgba(255,255,255,.45);
}
@media (min-width:1280px){.foot-bottom{padding-left:32px;padding-right:32px;}}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 断点 ---------- */
@media (max-width:1023px){
  .article-shell{grid-template-columns:1fr;gap:0;}
  .article-col{max-width:none;}
  .article-aside{display:none;}
  .article-toc-mobile{display:block;}
  .article-head h1{font-size:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;}
}
@media (max-width:767px){
  :root{--gutter:20px;}
  .site-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar-actions .link-quiet{display:none;}
  .topbar-inner{height:56px;gap:12px;}
  .topbar-actions .btn{padding:0 16px;min-width:0;height:42px;font-size:14px;}
  .nav-drawer.is-open{
    display:block;position:absolute;left:0;right:0;top:100%;z-index:65;
    background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);padding:16px var(--gutter) 20px;
  }
  .nav-drawer.is-open .site-search{display:flex;flex:1 1 auto;margin:0 0 14px;}
  .drawer-links{display:flex;flex-direction:column;}
  .drawer-links a{padding:12px 0;font-size:15px;font-weight:600;color:var(--text-700);border-bottom:1px solid var(--line);}
  .drawer-links a:last-child{border-bottom:0;}
  .drawer-links a.is-active{color:var(--brand-600);}
  .article-main{padding:16px 0 64px;}
  .article-head h1{font-size:28px;}
  .article-body{font-size:16px;line-height:1.95;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18.5px;}
  .card-grid{grid-template-columns:1fr;}
  .related{padding:56px 0;}
  .cta-band{padding:56px 0;}
  .cta-inner h2{font-size:23px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-top{padding:48px 0 32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .breadcrumb{padding-top:16px;}
}
@media (max-width:480px){
  .brand{font-size:16.5px;}
  .brand-badge{display:none;}
  .article-head h1{font-size:26px;}
  .sec-head h2{font-size:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-600:#0B8E78;
  --brand-500:#10A98F;
  --brand-100:#E4F5F1;
  --accent-500:#FF6A3D;
  --accent-600:#F05B2D;
  --accent-100:#FFEDE5;
  --gold:#FFC93C;
  --ink-900:#10131A;
  --ink-800:#1B1F28;
  --text-900:#1A1D24;
  --text-700:#3D434E;
  --text-500:#6E7681;
  --line:#E5E8E6;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --danger:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(16,19,26,.05),0 8px 20px -14px rgba(16,19,26,.14);
  --shadow-2:0 2px 6px rgba(16,19,26,.06),0 18px 36px -20px rgba(16,19,26,.22);
  --shadow-3:0 8px 20px rgba(16,19,26,.10),0 32px 64px -28px rgba(16,19,26,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(16,169,143,.35);outline-offset:2px;border-radius:8px}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:relative;z-index:60}
.topbar-inner{height:64px;display:flex;align-items:center;gap:16px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-900);font-size:18px;font-weight:700;letter-spacing:-.01em;flex:0 0 auto}
.brand:hover{color:var(--text-900);text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--brand-500),var(--brand-600));color:#fff;display:grid;place-items:center;flex:0 0 auto}
.brand-text{display:inline-flex;align-items:center;gap:8px}
.brand-badge{font-size:11.5px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:999px;padding:3px 8px;letter-spacing:0;line-height:1.4}

.search-form{position:relative;margin-left:auto;display:flex;align-items:center}
.search-form svg{position:absolute;left:13px;color:var(--text-500);pointer-events:none}
.search-form input{
  width:260px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--bg);padding:0 16px 0 40px;font-size:14.5px;color:var(--text-900);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.search-form input::placeholder{color:var(--text-500)}
.search-form input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.16)}

.top-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.top-link{font-size:14.5px;font-weight:600;color:var(--text-700);padding:8px 4px}
.top-link:hover{color:var(--brand-600);text-decoration:none}

.icon-btn{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--text-700);align-items:center;justify-content:center}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-500);text-decoration:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--text-900);align-items:center;justify-content:center;transition:border-color .18s var(--ease),background .18s var(--ease)}
.nav-toggle:hover{border-color:var(--brand-500);background:var(--brand-100)}

/* ---------- 频道 Tabs ---------- */
.chan-tabs{
  position:sticky;top:0;z-index:55;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.chan-tabs-inner{height:48px;display:flex;align-items:center;gap:26px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:none}
.chan-tabs-inner::-webkit-scrollbar{display:none}
.chan-tab{
  position:relative;flex:0 0 auto;display:inline-flex;align-items:center;height:48px;
  font-size:15px;font-weight:500;color:var(--text-500);scroll-snap-align:start;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.chan-tab::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.chan-tab:hover{color:var(--text-900);text-decoration:none;background:var(--brand-100)}
.chan-tab:hover::after{transform:scaleX(.4)}
.chan-tab.is-active{color:var(--text-900);font-weight:600}
.chan-tab.is-active::after{transform:scaleX(1)}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow-2)}
.mobile-drawer.is-open{display:block}
.mobile-drawer li{border-bottom:1px solid var(--line)}
.mobile-drawer li:last-child{border-bottom:0}
.mobile-drawer a.drawer-link{display:block;padding:15px 24px;font-size:15.5px;color:var(--text-700)}
.mobile-drawer a.drawer-link:hover{background:var(--brand-100);color:var(--brand-600);text-decoration:none}
.mobile-drawer a.drawer-link.is-active{color:var(--brand-600);font-weight:600}
.drawer-cta{padding:16px 24px 20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:120px;height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent-500);color:#fff}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,106,61,.85)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600)}
.btn-on-dark{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);color:#fff}
.btn-on-dark:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-1px)}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-500);flex-wrap:wrap}
.breadcrumb .sep{color:var(--text-500);opacity:.6}
.breadcrumb .cur{color:var(--text-900);font-weight:600}
.breadcrumb-on-dark a{color:rgba(255,255,255,.72)}
.breadcrumb-on-dark a:hover{color:#fff;text-decoration:none}
.breadcrumb-on-dark .sep{color:rgba(255,255,255,.45)}
.breadcrumb-on-dark .cur{color:#fff}

/* ---------- 分类页窄 Hero ---------- */
.hero-cat{
  position:relative;overflow:hidden;color:#fff;
  background-image:
    linear-gradient(100deg,rgba(16,19,26,.94) 0%,rgba(16,19,26,.70) 52%,rgba(16,19,26,.90) 100%),
    radial-gradient(120% 90% at 88% 6%,rgba(16,169,143,.22) 0%,rgba(16,169,143,0) 55%),
    radial-gradient(95% 85% at 4% 96%,rgba(255,106,61,.18) 0%,rgba(255,106,61,0) 52%),
    url("/assets/images/backpic/back-2.webp");
  background-repeat:no-repeat;
  background-size:cover;
  background-position:center;
}
.hero-cat-inner{min-height:400px;display:flex;flex-direction:column;justify-content:center;padding:56px 0}
.hero-cat h1{color:#fff;font-size:38px;line-height:1.22;font-weight:800;margin:18px 0 0;max-width:820px}
.hero-cat .hero-lead{margin-top:16px;max-width:620px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.78)}
.hero-cat .hero-cta{margin-top:28px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.hero-cat .hero-note{font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 板块 ---------- */
.sec{padding:88px 0}
.sec-alt{background:var(--surface)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.sec-head h2{font-size:32px;line-height:1.3}
.sec-sub{margin-top:12px;max-width:640px;font-size:16px;color:var(--text-500);line-height:1.8}
.sec-more{flex:0 0 auto;font-size:15px;font-weight:600;color:var(--brand-600);padding-bottom:4px}
.sec-more:hover{color:var(--brand-500)}

/* 功能分组：左大图 + 右侧说明行 */
.feat-split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.feat-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-2);background:linear-gradient(135deg,rgba(16,169,143,.14),rgba(255,106,61,.14))}
.feat-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.feat-media:hover img{transform:scale(1.02)}
.feat-rows{display:grid;gap:20px}
.feat-row{display:flex;gap:18px;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.feat-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D9E3E0}
.feat-ico{width:44px;height:44px;border-radius:12px;background:var(--brand-100);color:var(--brand-600);display:grid;place-items:center;flex:0 0 auto}
.feat-row h3{font-size:20px;margin-bottom:8px}
.feat-row p{font-size:15.5px;color:var(--text-700);line-height:1.8}
.feat-link{display:inline-block;margin-top:12px;font-size:14.5px;font-weight:600;color:var(--brand-600)}
.feat-link:hover{color:var(--brand-500)}

/* 功能分组：错落卡片 */
.feat-stagger{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start;margin-top:32px}
.feat-stagger > :nth-child(2){margin-top:44px}
.card-feature{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease);height:100%;
}
.card-feature:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.card-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-feature-body{padding:24px}
.card-feature-body h3{font-size:20px;margin-bottom:10px}
.card-feature-body p{font-size:15.5px;color:var(--text-700);line-height:1.8}
.tick-list{margin-top:14px;display:grid;gap:8px}
.tick-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--text-700)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(-45deg);border-radius:1px;
}

/* 功能分组：紧凑图标条 */
.feat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}
.feat-item{display:flex;gap:14px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:14px;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.feat-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.feat-item .ico-sm{width:36px;height:36px;border-radius:10px;background:var(--brand-100);color:var(--brand-600);display:grid;place-items:center;flex:0 0 auto}
.feat-item h3{font-size:16.5px;margin-bottom:4px}
.feat-item p{font-size:14px;color:var(--text-500);line-height:1.7}

/* ---------- 对比表 ---------- */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);box-shadow:var(--shadow-1);overflow:hidden}
table.cmp{min-width:680px}
.cmp th,.cmp td{padding:16px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.75}
.cmp thead th{background:var(--bg);font-size:13.5px;font-weight:600;color:var(--text-500);letter-spacing:0}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp tbody td:first-child{color:var(--text-900);font-weight:600;width:22%}
.cmp tbody tr:hover td{background:#FBFDFC}
.cmp .cell-strong{color:var(--brand-600);font-weight:600}

/* ---------- 上手步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.step-num{width:36px;height:36px;border-radius:999px;background:var(--brand-500);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.step h3{font-size:18px;margin:16px 0 8px}
.step p{font-size:14.5px;color:var(--text-700);line-height:1.8}
.step-tip{margin-top:12px;font-size:13px;color:var(--text-500)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 20px;align-items:start}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item[open]{border-color:var(--brand-500);box-shadow:var(--shadow-2)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16.5px;font-weight:600;color:var(--text-900);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-ico{flex:0 0 auto;color:var(--brand-600);transition:transform .2s var(--ease)}
.faq-item[open] .faq-ico{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;font-size:15.5px;color:var(--text-700);line-height:1.85}

/* ---------- CTA 带 ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink-900);color:#fff}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,rgba(255,255,255,0) 2px 9px),
    radial-gradient(80% 130% at 10% 0%,rgba(16,169,143,.20) 0%,rgba(16,169,143,0) 55%),
    radial-gradient(70% 110% at 96% 100%,rgba(255,106,61,.16) 0%,rgba(255,106,61,0) 52%);
}
.cta-inner{position:relative;padding:64px 0;display:flex;align-items:center;justify-content:space-between;gap:40px}
.cta-inner h2{color:#fff;font-size:30px;line-height:1.35}
.cta-inner p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.72);max-width:560px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}
.cta-actions .btn{min-width:148px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72)}
.foot-top{padding:64px 0 40px;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}
.foot-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700}
.foot-brand:hover{color:#fff;text-decoration:none}
.foot-intro{margin:16px 0 20px;max-width:380px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.6)}
.foot-sub{display:flex;gap:10px;max-width:400px}
.foot-sub input{
  flex:1;min-width:0;height:46px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14.5px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.foot-sub input::placeholder{color:rgba(255,255,255,.45)}
.foot-sub input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.22)}
.foot-sub .btn{min-width:auto;height:46px;padding:0 18px;font-size:15px}
.foot-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:rgba(255,255,255,.66)}
.foot-col a:hover{color:#fff;text-decoration:none}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
body.js-anim .reveal{opacity:0;transform:translateY(14px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
body.js-anim .reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  body.js-anim .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  .sec{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .sec-head h2{font-size:27px}
  .feat-split{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .feat-strip{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .search-form input{width:200px}
}
@media (max-width:860px){
  .topbar-inner{height:56px;gap:10px}
  .search-form{display:none}
  .icon-btn{display:inline-flex}
  .top-link{display:none}
  .top-actions > .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  .chan-tabs-inner{gap:20px}
  .hero-cat-inner{min-height:340px;padding:44px 0}
  .hero-cat h1{font-size:31px}
  .hero-cat .hero-lead{font-size:16px}
}
@media (max-width:767px){
  .sec{padding:56px 0}
  .sec-head h2{font-size:23px}
  .sec-sub{font-size:15px}
  .sec-more{font-size:14.5px}
  .feat-stagger{grid-template-columns:1fr;margin-top:24px}
  .feat-stagger > :nth-child(2){margin-top:0}
  .feat-strip{grid-template-columns:1fr;margin-top:20px}
  .steps{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:52px 0;gap:26px}
  .cta-inner h2{font-size:24px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-sub{flex-direction:column}
  .foot-sub .btn{width:100%}
  .foot-bottom{flex-direction:column;gap:6px;padding-bottom:32px}

  /* 表格转堆叠卡 */
  .cmp-wrap{overflow:visible;border:0;background:transparent;box-shadow:none}
  table.cmp{min-width:0;display:block}
  .cmp thead{display:none}
  .cmp tbody,.cmp tr,.cmp td{display:block;width:100%}
  .cmp tr{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-1);padding:6px 0;margin-bottom:14px}
  .cmp tbody tr:last-child{margin-bottom:0}
  .cmp td{border:0;padding:9px 18px;display:flex;gap:12px;font-size:14.5px}
  .cmp td::before{content:attr(data-label);flex:0 0 78px;font-size:13px;font-weight:600;color:var(--text-500)}
  .cmp tbody td:first-child{width:auto}
  .cmp tbody tr:hover td{background:transparent}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .brand-text{font-size:16.5px}
  .hero-cat h1{font-size:28px}
  .hero-cat-inner{min-height:320px;padding:36px 0}
  .sec{padding:48px 0}
  .feat-row{padding:20px}
  .card-feature-body{padding:20px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
}

/* roulang page: category2 */
:root{
  --brand-600:#0B8E78;
  --brand-500:#10A98F;
  --brand-100:#E4F5F1;
  --accent-500:#FF6A3D;
  --accent-600:#E85A2E;
  --accent-100:#FFEDE5;
  --gold:#FFC93C;
  --ink-900:#10131A;
  --ink-800:#1B1F28;
  --text-900:#1A1D24;
  --text-700:#3D434E;
  --text-500:#6E7681;
  --line:#E5E8E6;
  --bg:#F6F8F7;
  --surface:#FFFFFF;
  --danger:#D64545;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(16,19,26,.04), 0 4px 14px rgba(16,19,26,.05);
  --shadow-2:0 6px 18px rgba(16,19,26,.08), 0 12px 32px rgba(16,19,26,.06);
  --shadow-3:0 18px 40px rgba(16,19,26,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(16,169,143,.35);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1280px){.container{padding:0 32px;}}
.section{padding:88px 0;}
@media (max-width:1023px){.section{padding:64px 0;}}
@media (max-width:767px){.section{padding:56px 0;}}
.section--white{background:var(--surface);}
.num{font-variant-numeric:tabular-nums;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:120px;height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease),border-color 180ms var(--ease);
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--accent-500);color:#fff;}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,106,61,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--text-900);}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-1px);}
.btn-block{width:100%;}

/* ============ 顶部导航 ============ */
.site-header{position:relative;z-index:60;}
.topbar{background:var(--surface);border-bottom:1px solid var(--line);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text-900);letter-spacing:-.01em;}
.brand:hover{color:var(--brand-600);text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  box-shadow:0 4px 12px rgba(16,169,143,.28);
}
.brand-badge{
  font-size:11.5px;font-weight:600;line-height:1;
  padding:4px 8px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);
}
.topbar-search{margin-left:auto;position:relative;width:264px;flex:none;}
.topbar-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--text-500);}
.search-input{
  width:100%;height:44px;padding:0 14px 0 40px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--text-900);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-input::placeholder{color:var(--text-500);}
.search-input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.15);outline:none;}
.topbar-actions{display:flex;align-items:center;gap:14px;flex:none;}
.link-quiet{font-size:14.5px;color:var(--text-700);font-weight:500;}
.link-quiet:hover{color:var(--brand-600);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--text-900);
  align-items:center;justify-content:center;
}
.topbar-panel{display:none;padding:8px 0 20px;border-top:1px solid var(--line);}
.topbar-panel.is-open{display:block;}
.topbar-panel .search-input{padding-left:40px;margin-bottom:14px;position:relative;}
.topbar-panel-inner{position:relative;}
.topbar-panel-inner svg{position:absolute;left:13px;top:13px;color:var(--text-500);}
.panel-links{display:flex;flex-wrap:wrap;gap:10px;}
.panel-links a{
  font-size:14.5px;font-weight:600;color:var(--text-900);
  padding:10px 16px;border:1px solid var(--line);border-radius:10px;background:#fff;
}
.panel-links a:hover{border-color:var(--brand-500);color:var(--brand-600);text-decoration:none;}

.chan-tabs{
  position:sticky;top:0;z-index:55;
  background:var(--surface);border-bottom:1px solid var(--line);
}
.chan-tabs.is-stuck{box-shadow:var(--shadow-1);}
.chan-tabs-inner{
  display:flex;align-items:center;gap:6px;height:48px;
  overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
  scroll-snap-type:x proximity;
}
.chan-tabs-inner::-webkit-scrollbar{display:none;}
.chan-tab{
  position:relative;flex:none;scroll-snap-align:start;
  display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:15px;color:var(--text-500);font-weight:500;
  border-radius:8px;
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.chan-tab:hover{color:var(--brand-600);background:var(--brand-100);text-decoration:none;}
.chan-tab.is-active{color:var(--text-900);font-weight:600;}
.chan-tab.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  border-radius:3px 3px 0 0;background:var(--accent-500);
}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-500);}
.breadcrumb a{color:var(--text-500);}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:rgba(255,255,255,.86);}

/* ============ 窄版首屏 ============ */
.hero-scene{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--ink-900);
  background-image:
    linear-gradient(95deg,rgba(16,19,26,.95) 0%,rgba(16,19,26,.84) 52%,rgba(16,19,26,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  padding:44px 0 60px;
  min-height:392px;
}
.hero-scene::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 300px at 10% 14%,rgba(16,169,143,.18),transparent 70%),
    radial-gradient(460px 280px at 92% 88%,rgba(255,106,61,.14),transparent 72%);
}
.hero-scene-inner{position:relative;z-index:2;max-width:880px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  padding:6px 14px;border-radius:999px;
  background:rgba(16,169,143,.18);color:#7FE3CE;border:1px solid rgba(16,169,143,.34);
}
.hero-title{
  margin:18px 0 16px;
  font-size:38px;line-height:1.28;font-weight:800;letter-spacing:-.01em;
  color:#fff;
}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.78);max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.hero-pills li{
  font-size:13.5px;color:rgba(255,255,255,.9);
  padding:8px 15px;border-radius:999px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);
}

/* ============ 板块标题 ============ */
.section-head{max-width:740px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);
}
.sec-title{
  margin:16px 0 12px;
  font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;
  color:var(--text-900);
}
.sec-desc{font-size:16px;color:var(--text-700);}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.head-row .section-head{margin-bottom:0;}
.link-more{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-600);white-space:nowrap;
}
.link-more:hover{color:var(--brand-500);gap:10px;}

/* ============ 场景卡左右交错 ============ */
.scene-list{display:flex;flex-direction:column;gap:64px;}
.scene-row{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.scene-row.is-reverse .scene-media{order:2;}
.scene-row.is-reverse .scene-body{order:1;}
.scene-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-2);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease);
}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-media:hover{transform:translateY(-2px);box-shadow:var(--shadow-3);}
.scene-index{
  position:absolute;left:16px;top:16px;
  font-size:13px;font-weight:700;letter-spacing:.04em;
  padding:6px 12px;border-radius:999px;
  background:rgba(16,19,26,.7);color:#fff;
}
.scene-tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;
  padding:4px 10px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);
}
.scene-body h3{margin:14px 0 12px;font-size:22px;line-height:1.45;font-weight:600;color:var(--text-900);}
.scene-body p{font-size:16px;color:var(--text-700);}
.scene-points{display:grid;gap:10px;margin-top:20px;}
.scene-points li{position:relative;padding-left:24px;font-size:15px;color:var(--text-700);}
.scene-points li::before{
  content:"";position:absolute;left:2px;top:.68em;width:8px;height:8px;border-radius:50%;
  background:var(--brand-500);
}

/* ============ 对照表 ============ */
.table-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table caption{text-align:left;padding:20px 24px 0;font-size:14px;color:var(--text-500);}
.compare-table th,.compare-table td{padding:18px 24px;text-align:left;font-size:15.5px;}
.compare-table thead th{
  background:var(--brand-100);color:var(--brand-600);
  font-size:14px;font-weight:600;letter-spacing:.02em;
  border-bottom:1px solid rgba(11,142,120,.14);
}
.compare-table tbody tr + tr td{border-top:1px solid var(--line);}
.compare-table tbody tr:hover td{background:#FBFDFC;}
.compare-table td:first-child{font-weight:600;color:var(--text-900);}
.compare-table .cell-strong{color:var(--accent-500);font-weight:600;font-variant-numeric:tabular-nums;}

/* ============ 引述带 ============ */
.quote-band{
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F7F5 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  position:relative;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:18px;
}
.quote-card::before{
  content:"”";position:absolute;right:24px;top:6px;
  font-size:56px;line-height:1;color:var(--brand-100);font-weight:700;
}
.quote-text{font-size:16.5px;line-height:1.8;color:var(--text-900);}
.quote-who{font-size:15px;font-weight:600;color:var(--text-900);}
.quote-role{font-size:13px;color:var(--text-500);}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  padding:0 22px;box-shadow:var(--shadow-1);
  transition:border-color 180ms var(--ease);
}
.faq-item[open]{border-color:rgba(16,169,143,.4);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:16.5px;font-weight:600;color:var(--text-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-ico{flex:none;color:var(--brand-600);transition:transform 200ms var(--ease);}
.faq-item[open] .faq-ico{transform:rotate(180deg);}
.faq-a{padding:0 0 20px;font-size:15.5px;color:var(--text-700);border-top:1px solid var(--line);padding-top:16px;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;color:#fff;
  background-color:var(--ink-900);
  background-image:
    repeating-linear-gradient(115deg,rgba(255,255,255,.035) 0 2px,transparent 2px 14px);
  padding:72px 0;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 320px at 8% 0%,rgba(16,169,143,.18),transparent 70%),
    radial-gradient(460px 300px at 92% 100%,rgba(255,106,61,.15),transparent 70%);
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-inner h2{font-size:30px;line-height:1.32;font-weight:700;color:#fff;letter-spacing:-.01em;}
.cta-sub{margin-top:12px;font-size:16px;color:rgba(255,255,255,.72);}
.cta-actions{display:flex;gap:14px;flex:none;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.7);}
.foot-top{border-top:1px solid rgba(255,255,255,.08);padding:64px 0 44px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.foot-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:#fff;
}
.foot-brand:hover{color:#fff;text-decoration:none;}
.foot-brand .brand-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
}
.foot-intro{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:330px;}
.foot-sub{display:flex;gap:10px;margin-top:20px;max-width:380px;}
.foot-sub input{
  flex:1;min-width:0;height:44px;padding:0 14px;
  border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.foot-sub input::placeholder{color:rgba(255,255,255,.42);}
.foot-sub input:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(16,169,143,.22);outline:none;}
.foot-sub .btn{height:44px;min-width:auto;padding:0 18px;font-size:14.5px;}
.foot-col h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.64);}
.foot-col a:hover{color:#fff;text-decoration:none;}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding:22px 24px 30px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 480ms var(--ease),transform 480ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hero-title{font-size:32px;}
  .sec-title{font-size:26px;}
  .scene-row{gap:32px;}
  .scene-list{gap:52px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .quote-grid{grid-template-columns:1fr;gap:18px;}
}
@media (max-width:900px){
  .scene-row{grid-template-columns:1fr;gap:24px;}
  .scene-row.is-reverse .scene-media,
  .scene-row.is-reverse .scene-body{order:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-wrap:wrap;}
}
@media (max-width:767px){
  .topbar-inner{height:56px;gap:14px;}
  .topbar-search{display:none;}
  .topbar-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .brand{font-size:17px;}
  .hero-scene{padding:32px 0 48px;min-height:340px;background-position:center;}
  .hero-title{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{flex:1;min-width:0;}
  .sec-title{font-size:23px;}
  .faq-grid{grid-template-columns:1fr;}
  .compare-table thead{display:none;}
  .compare-table,.compare-table tbody,.compare-table tr,.compare-table td{display:block;width:100%;}
  .compare-table tr{
    padding:6px 0 14px;border-top:1px solid var(--line);
  }
  .compare-table tr:first-child{border-top:0;}
  .compare-table td{padding:10px 20px;font-size:15px;}
  .compare-table td::before{
    content:attr(data-label);
    display:block;font-size:12.5px;font-weight:600;color:var(--text-500);
    letter-spacing:.02em;margin-bottom:2px;
  }
  .compare-table td:first-child{font-size:16.5px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .foot-top{padding:48px 0 32px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-bottom{padding-left:24px;padding-right:24px;}
}
@media (max-width:480px){
  .container{padding:0 18px;}
  .brand-badge{display:none;}
  .hero-title{font-size:26px;}
  .scene-body h3{font-size:20px;}
  .quote-card{padding:22px;}
  .foot-sub{flex-direction:column;}
  .foot-sub .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1!important;transform:none!important;}
}