/* roulang page: index */
:root{
  --brand:#12A594;--brand-d:#0E8A7C;--brand-l:#E6F6F3;
  --accent:#FF8A3D;--accent-l:#FFF1E6;--violet:#7C6BFF;
  --ink:#14171A;--text:#4A5259;--muted:#8A9299;--line:#E5E8E4;
  --bg:#FAF9F6;--card:#FFFFFF;--dark:#0D2B27;
  --success:#1FA971;--warn:#F2A93B;--danger:#E5484D;--info:#6B7AFF;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --r-sm:14px;--r-md:16px;--r-lg:20px;--r-xl:24px;--r-2xl:28px;
  --maxw:1200px;
  --ease:0.25s cubic-bezier(.2,.7,.3,1);
}
*,*::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","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#F1F2F0;border-radius:8px}
::-webkit-scrollbar-thumb{background:#CBD4CF;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.mosaic{background-image:linear-gradient(90deg,rgba(18,165,148,.08) 1px,transparent 1px),linear-gradient(rgba(18,165,148,.08) 1px,transparent 1px);background-size:24px 24px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,249,246,.86);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:background var(--ease),box-shadow var(--ease),border-color var(--ease)}
.site-header.is-scrolled{background:rgba(255,255,255,.94);border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height var(--ease)}
.site-header.is-scrolled .nav-wrap{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:26px;height:26px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;padding:3px;border-radius:8px;background:#fff;box-shadow:var(--sh-1)}
.brand-mark i{border-radius:2px;display:block}
.brand-mark i:nth-child(1){background:var(--brand)}
.brand-mark i:nth-child(2){background:var(--accent)}
.brand-mark i:nth-child(3){background:var(--violet)}
.brand-mark i:nth-child(4){background:var(--brand-d)}
.brand-name{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.2px}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:12px}
.nav-link{position:relative;padding:8px 2px;font-size:15px;font-weight:500;color:var(--text);white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;border-radius:3px;background:var(--grad-brand);transform:scaleX(0);transition:transform var(--ease)}
.nav-link:hover{color:var(--brand-d)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);border-radius:12px;background:#fff;width:210px;transition:border-color var(--ease),box-shadow var(--ease)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.nav-search svg{flex:none;color:var(--muted)}
.nav-search input{border:0;outline:0;background:transparent;font-size:14px;width:100%;color:var(--ink)}
.icon-btn{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand-d)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;border-radius:20px 0 0 20px;box-shadow:var(--sh-2);transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.3,1);z-index:80;padding:24px;display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:14px;font-size:15px;font-weight:500;color:var(--text)}
.drawer-link:hover{background:var(--brand-l);color:var(--brand-d)}
.drawer-link.active{background:var(--brand-l);color:var(--brand-d);font-weight:600}
.drawer-mask{position:fixed;inset:0;background:rgba(13,43,39,.4);z-index:75;opacity:0;visibility:hidden;transition:.25s}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;white-space:nowrap;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-l);color:var(--brand-d)}
.btn-light{background:#fff;color:var(--brand-d)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(13,43,39,.22)}
.btn-outline-light{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-d);border-bottom:2px solid rgba(18,165,148,.35);padding-bottom:2px}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent)}
.pill{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-l);color:var(--brand-d);font-size:12px;font-weight:600}
.pill-accent{background:var(--accent-l);color:#C25E1C}
.badge{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid rgba(18,165,148,.22);font-size:13px;font-weight:600;color:var(--brand-d)}
.badge-soft{background:var(--brand-l);border-color:transparent}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--grad-soft);border-bottom:1px solid var(--line)}
.mosaic-corner{position:absolute;top:0;right:0;width:360px;height:280px;pointer-events:none;background-image:linear-gradient(90deg,rgba(18,165,148,.10) 1px,transparent 1px),linear-gradient(rgba(18,165,148,.10) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:radial-gradient(circle at 100% 0,#000,transparent 72%);mask-image:radial-gradient(circle at 100% 0,#000,transparent 72%)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:68px 0 60px;position:relative;z-index:2}
.hero h1{font-size:46px;line-height:1.18;letter-spacing:-.5px;font-weight:700;color:var(--ink);margin:18px 0 16px}
.hero-sub{font-size:16px;line-height:1.75;color:var(--text);max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:34px}
.hero-stats li{position:relative;background:#fff;border:1px solid rgba(18,165,148,.2);border-radius:14px;padding:12px 14px 12px 20px;box-shadow:var(--sh-1)}
.hero-stats li::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--brand)}
.hero-stats .num{display:block;font-size:25px;font-weight:800;line-height:1.15;color:var(--brand-d);font-variant-numeric:tabular-nums}
.hero-stats .lbl{display:block;font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media > img.hero-main{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:28px;box-shadow:var(--sh-3)}
.hero-thumb{position:absolute;left:-26px;bottom:-26px;width:124px;height:92px;object-fit:cover;border-radius:16px;border:4px solid #fff;box-shadow:var(--sh-2)}
.float-card{position:absolute;background:#fff;border:1px solid rgba(18,165,148,.22);border-radius:14px;box-shadow:var(--sh-2);padding:10px 14px;line-height:1.35}
.float-card .fc-num{display:block;font-size:19px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums}
.float-card .fc-lbl{display:block;font-size:12px;color:var(--muted)}
.fc-1{top:22px;right:-14px}
.fc-2{bottom:-14px;right:26px}

/* ---------- Sections ---------- */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:30px;font-weight:700;color:var(--ink);letter-spacing:-.4px;line-height:1.3}
.section-desc{font-size:15px;color:var(--muted);margin-top:8px}

/* ---------- 保障条 ---------- */
.guard-bar{background:var(--brand-l);border-radius:var(--r-xl);padding:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:-34px;position:relative;z-index:3;box-shadow:var(--sh-1)}
.guard-item{display:flex;gap:12px;align-items:flex-start;padding:0 16px;border-right:1px solid rgba(18,165,148,.2)}
.guard-item:last-child{border-right:0}
.guard-item svg{flex:none;color:var(--brand);margin-top:2px}
.guard-item b{display:block;font-size:15px;color:var(--ink);font-weight:600}
.guard-item span{display:block;font-size:13px;color:var(--muted);line-height:1.6}

/* ---------- 卡片通用 ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.card:hover .card-cover img{transform:scale(1.04)}
.card-cover{position:relative;overflow:hidden;background:var(--grad-soft)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.cover-badge{position:absolute;left:14px;top:14px;z-index:2}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px}
.card-title{font-size:19px;font-weight:600;line-height:1.45;color:var(--ink)}
.card-text{font-size:14px;line-height:1.7;color:var(--muted)}
.card-points{display:flex;flex-direction:column;gap:6px}
.card-points li{position:relative;padding-left:16px;font-size:13px;color:var(--text)}
.card-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.param-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px}
.param{font-size:12px;font-weight:600;color:var(--brand-d);background:#fff;border:1px solid rgba(18,165,148,.25);border-radius:999px;padding:3px 10px}
.param-num{color:var(--accent);border-color:rgba(255,138,61,.35);background:var(--accent-l)}

/* ---------- 非对称展示网格 ---------- */
.showcase-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.showcase-feature{grid-column:span 7;display:flex;flex-direction:column;height:430px}
.showcase-feature .card-cover{flex:1;min-height:180px}
.showcase-side{grid-column:span 5;display:grid;gap:24px;grid-template-rows:1fr 1fr}
.mini-card{display:grid;grid-template-columns:132px 1fr;gap:16px;padding:16px;align-items:stretch;height:203px}
.mini-card .card-cover{border-radius:14px;height:100%}
.mini-card .card-body{padding:0;justify-content:center;gap:8px}
.mini-card .card-title{font-size:17px}
.span-4{grid-column:span 4}
.span-4 .card-cover{aspect-ratio:16/10}
.card-foot{margin-top:auto;padding-top:12px}

/* ---------- 分类拼块 ---------- */
.cat-blocks{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cat-block{--off:0px;position:relative;background:var(--grad-soft);border:1px solid rgba(18,165,148,.14);border-radius:var(--r-xl);padding:32px;min-height:210px;display:flex;flex-direction:column;gap:12px;transform:translateY(var(--off));transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease)}
.cat-block:nth-child(2),.cat-block:nth-child(4){--off:16px}
.cat-block:hover{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-3);transform:translateY(calc(var(--off) - 4px))}
.cat-block h3{font-size:21px;font-weight:700;color:var(--ink);transition:color var(--ease)}
.cat-block p{font-size:14px;line-height:1.7;color:var(--text);transition:color var(--ease)}
.cat-block .cat-arrow{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-d);transition:color var(--ease)}
.cat-block:hover h3,.cat-block:hover p,.cat-block:hover .cat-arrow{color:#fff}
.cat-index{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.cat-block:hover .cat-index{color:rgba(255,255,255,.85)}

/* ---------- 数据面板 ---------- */
.data-panel{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:start}
.kpi-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.kpi{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1)}
.kpi .num{display:block;font-size:34px;font-weight:800;line-height:1.1;color:var(--brand-d);font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.kpi .num.orange{color:var(--accent)}
.kpi .lbl{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.panel-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.panel-card h3{font-size:17px;font-weight:600;color:var(--ink);padding:20px 24px 4px}
.panel-card p{font-size:13px;color:var(--muted);padding:0 24px 16px}
.data-table{font-size:14px}
.data-table th{background:var(--brand-l);color:var(--brand-d);font-weight:600;text-align:left;padding:12px 24px;font-size:13px}
.data-table td{padding:12px 24px;border-top:1px solid var(--line);color:var(--text)}
.data-table tr:hover td{background:#FCFDFC}

/* ---------- 最新信息（CMS） ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.post-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-cover{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--grad-soft)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a:hover{color:var(--brand-d)}
.post-excerpt{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted)}
.post-meta .read{color:var(--brand-d);font-weight:600}
.empty-state{border:2px dashed var(--line);border-radius:var(--r-xl);padding:56px 24px;text-align:center;background:#fff;display:flex;flex-direction:column;align-items:center;gap:14px}
.empty-state svg{color:var(--muted)}
.empty-state p{font-size:14px;color:var(--muted)}
.pager{display:flex;justify-content:center;gap:10px;margin-top:36px}
.pager a{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:600;color:var(--text)}
.pager a:hover{border-color:var(--brand);color:var(--brand-d)}
.pager a.current{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 评价轮播 ---------- */
.review-wrap{position:relative}
.review-wrap::before,.review-wrap::after{content:"";position:absolute;top:0;bottom:20px;width:32px;pointer-events:none;z-index:2}
.review-wrap::before{left:-4px;background:linear-gradient(90deg,var(--bg),transparent)}
.review-wrap::after{right:-4px;background:linear-gradient(270deg,var(--bg),transparent)}
.review-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px 4px 20px;scrollbar-width:thin}
.review-card{flex:0 0 340px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease)}
.review-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--grad-soft);display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--brand-d);flex:none}
.review-name{font-size:15px;font-weight:600;color:var(--ink);line-height:1.3}
.review-role{font-size:12px;color:var(--muted)}
.stars{display:flex;gap:3px;color:var(--accent);margin-bottom:12px}
.review-quote{font-size:16px;line-height:1.8;color:var(--text)}
.review-source{margin-top:16px;display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-l);color:var(--brand-d);font-size:12px;font-weight:600}
.review-nav{display:flex;gap:10px;margin-top:6px}
.round-btn{width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);display:inline-flex;align-items:center;justify-content:center;color:var(--text);transition:var(--ease)}
.round-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.review-dots{display:none;justify-content:center;gap:6px;margin-top:12px}
.review-dots i{width:6px;height:6px;border-radius:50%;background:#D3D8D5;display:block}
.review-dots i.on{background:var(--brand)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:16px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color var(--ease),background var(--ease),box-shadow var(--ease)}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{flex:none;color:var(--brand);transition:transform var(--ease)}
.faq-item[open]{border-color:rgba(18,165,148,.35);background:rgba(230,246,243,.6);border-left:3px solid var(--brand);box-shadow:var(--sh-1)}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{padding:16px 24px 22px;font-size:15px;line-height:1.8;color:var(--text);border-top:1px dashed rgba(18,165,148,.28)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-2xl);padding:48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh-3)}
.cta-band h2{font-size:29px;font-weight:700;line-height:1.3;letter-spacing:-.3px}
.cta-band p{font-size:15px;margin-top:10px;color:rgba(255,255,255,.9);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:none}
.cta-mosaic{position:absolute;right:0;bottom:0;width:280px;height:200px;pointer-events:none;background-image:linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:radial-gradient(circle at 100% 100%,#000,transparent 70%);mask-image:radial-gradient(circle at 100% 100%,#000,transparent 70%)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:96px;position:relative;overflow:hidden}
.footer-mosaic{position:absolute;top:0;left:0;right:0;height:120px;pointer-events:none;background-image:linear-gradient(90deg,rgba(63,208,180,.10) 1px,transparent 1px),linear-gradient(rgba(63,208,180,.10) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:linear-gradient(180deg,#000,transparent);mask-image:linear-gradient(180deg,#000,transparent)}
.footer-top{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:64px 0 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:700}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:320px}
.footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-col a:hover{color:#3FD0B4}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62)}
.footer-contact strong{display:block;color:#fff;font-size:15px;margin-bottom:8px}
.footer-bottom{position:relative;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#3FD0B4}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{display:none}
.tab-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px;color:var(--muted);min-height:44px;position:relative;text-align:center}
.tab-item.active{color:var(--brand-d);font-weight:600}
.tab-item.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:22px;height:2px;border-radius:2px;background:var(--brand)}
.tab-center .tab-ico{width:48px;height:48px;border-radius:50%;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;margin-top:-26px;box-shadow:var(--sh-3);border:3px solid #fff}
.tab-center{margin-top:-6px}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){:root{--maxw:1280px}}
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .nav-search{display:none}
  .icon-btn{display:inline-flex}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:48px 0 56px}
  .hero h1{font-size:36px}
  .section{padding:72px 0}
  .guard-bar{grid-template-columns:1fr 1fr;gap:20px;margin-top:-24px}
  .guard-item{border-right:0;padding:0}
  .showcase-feature{grid-column:span 12;height:auto}
  .showcase-feature .card-cover{aspect-ratio:16/9;min-height:0}
  .showcase-side{grid-column:span 12;grid-template-rows:auto auto;grid-template-columns:1fr 1fr}
  .mini-card{height:auto;grid-template-columns:1fr;gap:12px}
  .mini-card .card-cover{aspect-ratio:16/10;border-radius:14px}
  .span-4{grid-column:span 6}
  .span-4:last-child{grid-column:span 12}
  .data-panel{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
  .hero-stats{grid-template-columns:repeat(4,1fr)}
  .hero-thumb{left:-14px;bottom:-18px}
  .fc-1{right:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{padding-bottom:76px}
  .nav-wrap{height:62px}
  .site-header.is-scrolled .nav-wrap{height:56px}
  .brand-name{font-size:17px}
  .hero-grid{padding:36px 0 44px;gap:32px}
  .hero h1{font-size:30px;margin:14px 0 12px}
  .hero-sub{font-size:15px}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 100%}
  .hero-stats{grid-template-columns:1fr 1fr;gap:10px;margin-top:26px}
  .hero-stats .num{font-size:22px}
  .hero-media > img.hero-main{aspect-ratio:16/12;border-radius:22px}
  .hero-thumb{width:96px;height:72px;border-radius:14px;left:-8px;bottom:-14px}
  .float-card{padding:8px 12px}
  .fc-1{top:12px;right:-6px}
  .fc-2{bottom:-10px;right:10px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .section-title{font-size:23px}
  .guard-bar{grid-template-columns:1fr 1fr;padding:20px;gap:18px;margin-top:-18px}
  .guard-item svg{width:20px;height:20px}
  .showcase-grid{gap:18px}
  .showcase-side{grid-template-columns:1fr}
  .span-4,.span-4:last-child{grid-column:span 12}
  .cat-blocks{grid-template-columns:1fr;gap:18px}
  .cat-block:nth-child(2),.cat-block:nth-child(4){--off:0px}
  .cat-block{padding:24px;min-height:auto}
  .post-grid{grid-template-columns:1fr;gap:20px}
  .review-card{flex:0 0 82vw;padding:20px}
  .review-nav{display:none}
  .review-dots{display:flex}
  .cta-band{padding:32px 24px;border-radius:22px}
  .cta-band h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-top{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;text-align:left}
  .site-footer{margin-top:56px}
  .mobile-tab{display:flex;position:fixed;left:0;right:0;bottom:0;height:60px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(20,23,26,.06);z-index:60;align-items:center;justify-content:space-around;padding-bottom:env(safe-area-inset-bottom)}
  .kpi-grid{gap:12px}
  .kpi{padding:18px}
  .kpi .num{font-size:26px}
  .data-table th,.data-table td{padding:10px 16px}
  .panel-card h3{padding:16px 18px 4px}
  .panel-card p{padding:0 18px 14px}
}
@media (max-width:480px){
  .hero h1{font-size:26px}
  .section-title{font-size:21px}
  .guard-bar{grid-template-columns:1fr;padding:18px;gap:14px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .review-card{flex:0 0 86vw}
}

/* roulang page: category1 */
:root{
  --brand:#12A594;
  --brand-dark:#0E8A7C;
  --brand-light:#E6F6F3;
  --accent:#FF8A3D;
  --accent-light:#FFF1E6;
  --violet:#7C6BFF;
  --ink:#14171A;
  --text:#4A5259;
  --muted:#8A9299;
  --line:#E5E8E4;
  --bg:#FAF9F6;
  --card:#FFFFFF;
  --deep:#0D2B27;
  --success:#1FA971;
  --warn:#F2A93B;
  --danger:#E5484D;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --r-btn:14px;
  --r-sm:16px;
  --r-card:20px;
  --r-lg:24px;
  --r-xl:28px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--accent)}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-light);color:var(--brand-dark)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#F1F2F0;border-radius:8px}
::-webkit-scrollbar-thumb{background:#D5DAD6;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:520px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,249,246,.92);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
  transition:height .25s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;width:24px;height:24px}
.brand-mark i{display:block;border-radius:3px;background:var(--grad-brand)}
.brand-mark i:nth-child(2){opacity:.72}
.brand-mark i:nth-child(3){opacity:.55}
.brand-mark i:nth-child(4){opacity:.85}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.4px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex-wrap:wrap}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text);border-radius:12px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-light)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;border-radius:3px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:6px;
  height:44px;padding:0 6px 0 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.search-box input{border:0;outline:none;background:transparent;width:150px;font-size:14px}
.search-box button{
  width:34px;height:34px;display:grid;place-items:center;border-radius:10px;color:var(--brand);
  transition:background .2s var(--ease);
}
.search-box button:hover{background:var(--brand-light)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background-image:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark)}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:12px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.85}
.btn.is-loading .spin{
  width:15px;height:15px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.mobile-toggle{
  display:none;width:44px;height:44px;place-items:center;border:1px solid var(--line);
  border-radius:12px;background:#fff;color:var(--ink);
}
.mobile-toggle:hover{border-color:var(--brand);color:var(--brand)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);z-index:95;
  background:#fff;border-radius:20px 0 0 20px;box-shadow:-12px 0 40px rgba(20,23,26,.12);
  padding:20px;transform:translateX(105%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:40px;height:40px;display:grid;place-items:center;border-radius:12px;color:var(--muted);border:1px solid var(--line)}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer .nav-link{height:52px;font-size:16px;padding:0 14px;border-radius:14px}
.drawer .nav-link.active{background:var(--brand-light);color:var(--brand-dark)}
.drawer .nav-link.active::after{display:none}
.drawer .btn{margin-top:16px}
.scrim{
  position:fixed;inset:0;background:rgba(13,43,39,.4);z-index:94;opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.scrim.open{opacity:1;pointer-events:auto}
@media (max-width:1023px){
  .main-nav,.search-box{display:none}
  .mobile-toggle{display:grid}
}
@media (max-width:520px){
  .brand-name{font-size:17px}
  .header-actions .btn-primary{display:none}
}

/* ============ 面包屑 ============ */
.breadcrumb{padding:24px 0 0;font-size:13px;color:var(--muted)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#CBD0CC}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600}

/* ============ 页头 ============ */
.page-hero{padding:24px 0 8px}
.hero-panel{
  position:relative;overflow:hidden;
  background-image:var(--grad-soft);
  border:1px solid var(--line);border-radius:var(--r-xl);
  padding:40px;
}
.hero-panel::after{
  content:"";position:absolute;right:-40px;top:-40px;width:240px;height:240px;
  background-image:linear-gradient(rgba(18,165,148,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(18,165,148,.08) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;z-index:1}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid rgba(18,165,148,.25);color:var(--brand-dark);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-kicker span.dot{width:7px;height:7px;border-radius:50%;background:var(--brand)}
.page-hero h1{font-size:42px;line-height:1.18;letter-spacing:-.6px}
.page-hero h1 em{font-style:normal;background-image:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:16px;font-size:16px;color:var(--text);max-width:520px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-badge{
  position:relative;background:#fff;border:1px solid rgba(18,165,148,.2);border-radius:var(--r-btn);
  padding:12px 18px 12px 20px;min-width:120px;box-shadow:var(--sh-1);
}
.stat-badge::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:4px;background:var(--brand)}
.stat-badge strong{display:block;font-size:26px;font-weight:800;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-badge.accent::before{background:var(--accent)}
.stat-badge.accent strong{color:var(--accent)}
.stat-badge span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);aspect-ratio:4/3}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.float-badge{
  position:absolute;background:#fff;border:1px solid rgba(18,165,148,.2);border-radius:14px;
  padding:10px 14px;box-shadow:var(--sh-2);font-size:13px;color:var(--muted);
}
.float-badge b{display:block;font-size:18px;color:var(--ink);font-variant-numeric:tabular-nums}
.float-badge.tl{left:14px;top:14px}
.float-badge.br{right:14px;bottom:14px;border-color:rgba(255,138,61,.35)}
.float-badge.br b{color:var(--accent)}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .page-hero h1{font-size:34px}
  .hero-panel{padding:28px}
}
@media (max-width:520px){
  .page-hero h1{font-size:28px}
  .hero-panel{padding:22px}
  .stat-badge{flex:1 1 calc(50% - 6px);min-width:0;padding:10px 14px 10px 16px}
  .stat-badge strong{font-size:22px}
}

/* ============ 通用板块 ============ */
.section{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--muted)}
.section-head .link-more{
  font-size:15px;font-weight:600;color:var(--brand);text-decoration:underline;
  text-decoration-thickness:2px;text-underline-offset:3px;white-space:nowrap;
}
.section-head .link-more:hover{color:var(--accent)}
@media (max-width:767px){
  .section{padding:40px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2{font-size:23px}
}

/* ============ 8/4 布局 ============ */
.layout{margin-top:40px;display:grid;grid-template-columns:8fr 4fr;gap:32px;align-items:start}
.entry-list{display:flex;flex-direction:column;gap:20px}
.entry-card{
  display:grid;grid-template-columns:240px 1fr;gap:24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-2);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.entry-media{border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;background:var(--grad-soft)}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.entry-card:hover .entry-media img{transform:scale(1.04)}
.entry-body{display:flex;flex-direction:column;min-width:0}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:600;
}
.chip.accent{background:var(--accent-light);color:#C25A16}
.chip.line{background:#F2F0FF;color:#5A48D8}
.entry-body h3{font-size:19px;margin-top:12px}
.entry-body h3 a{color:var(--ink)}
.entry-body h3 a:hover{color:var(--brand-dark)}
.entry-desc{margin-top:10px;font-size:14px;line-height:1.7;color:var(--muted)}
.entry-points{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px 18px}
.entry-points li{position:relative;padding-left:16px;font-size:13px;color:var(--text)}
.entry-points li::before{content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.entry-foot{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.entry-foot time{font-size:13px;color:var(--muted)}
.read-link{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;min-height:44px}
.read-link:hover{color:var(--accent)}
.read-link:hover svg{transform:translateX(3px)}
.read-link svg{transition:transform .25s var(--ease)}
@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:28px}
}
@media (max-width:640px){
  .entry-card{grid-template-columns:1fr;gap:16px;padding:16px}
  .entry-media{aspect-ratio:16/9}
  .entry-body h3{font-size:17px}
}

/* ============ 侧栏 ============ */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-2)}
.side-card h3{font-size:17px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--brand)}
.side-note{margin-top:10px;font-size:13px;color:var(--muted)}
.anchor-list{margin-top:14px;display:flex;flex-direction:column;gap:4px}
.anchor-list a{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--text);background:#FAFAF8;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.anchor-list a:hover{background:var(--brand-light);color:var(--brand-dark);border-color:rgba(18,165,148,.25)}
.anchor-list .num{
  width:24px;height:24px;flex:0 0 24px;display:grid;place-items:center;border-radius:8px;
  background:var(--grad-soft);color:var(--brand-dark);font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
}
.tag-cloud{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--text);
  transition:all .2s var(--ease);
}
.tag-cloud a:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-light)}
.mini-steps{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.mini-steps li{display:flex;gap:12px;font-size:14px;color:var(--text)}
.mini-steps .step-dot{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-light);color:var(--brand-dark);font-size:12px;font-weight:700;
}
.form-field{margin-top:14px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-field textarea{height:96px;padding:12px 16px;resize:vertical;line-height:1.7}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light);
}
.form-tip{margin-top:12px;font-size:13px;color:var(--muted)}
.form-tip.ok{color:var(--success);font-weight:600}
.form-tip.err{color:var(--danger)}
@media (max-width:1023px){
  .sidebar{position:static}
}

/* ============ FAQ ============ */
.faq-wrap{margin-top:40px;display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;padding:20px 56px 20px 24px;
  font-size:16px;font-weight:600;color:var(--ink);min-height:56px;display:flex;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  transition:transform .25s var(--ease);color:var(--brand);
}
.faq-item[open] summary svg{transform:translateY(-50%) rotate(180deg)}
.faq-item[open]{border-left:3px solid var(--brand);background:rgba(230,246,243,.6)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--text);border-top:1px dashed var(--line);margin-top:2px;padding-top:16px}
@media (max-width:767px){
  .faq-wrap{grid-template-columns:1fr;gap:14px}
  .faq-item summary{font-size:15px;padding:18px 52px 18px 18px}
  .faq-body{padding:14px 18px 18px}
}

/* ============ CTA 条 ============ */
.cta-band{margin:56px 0}
.cta-inner{
  background-image:var(--grad-brand);border-radius:var(--r-xl);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:200px;height:200px;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta-inner h2{color:#fff;font-size:28px;position:relative;z-index:1}
.cta-inner p{color:rgba(255,255,255,.88);margin-top:10px;font-size:15px;max-width:560px;position:relative;z-index:1}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.cta-actions .btn-primary{background-image:none;background:#fff;color:var(--brand-dark)}
.cta-actions .btn-primary:hover{background:#F4FFFC;color:var(--brand-dark)}
.cta-actions .btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.16);border-color:#fff;color:#fff}
@media (max-width:900px){
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta-inner h2{font-size:23px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--deep);color:rgba(255,255,255,.72);margin-top:48px;overflow:hidden}
.footer-mosaic{
  position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.footer-top{
  position:relative;z-index:1;display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-name{color:#fff}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:360px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;min-height:24px;display:inline-flex;align-items:center}
.footer-col a:hover{color:#3FD0B4}
.footer-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-contact strong{display:block;color:#fff;margin-bottom:8px;font-size:14px}
.footer-bottom{
  position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#3FD0B4}
@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:520px){
  .footer-top{grid-template-columns:1fr}
}

/* ============ 移动底部 Tab ============ */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(20,23,26,.05);
}
.tab-list{display:grid;grid-template-columns:repeat(5,1fr);height:60px}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:12px;color:var(--muted);position:relative;min-height:44px;
}
.tab-item svg{width:20px;height:20px}
.tab-item.active{color:var(--brand);font-weight:600}
.tab-item.active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--brand);
}
@media (max-width:767px){
  .mobile-tabbar{display:block}
  body{padding-bottom:76px}
}

/* 图片淡入 */
.fade-img{opacity:0;transition:opacity .5s var(--ease)}
.fade-img.is-loaded{opacity:1}

/* roulang page: article */
:root{
  --brand:#12A594;--brand-d:#0E8A7C;--brand-l:#E6F6F3;
  --accent:#FF8A3D;--accent-l:#FFF1E6;--violet:#7C6BFF;
  --ink:#14171A;--text:#4A5259;--muted:#8A9299;--line:#E5E8E4;
  --bg:#FAF9F6;--card:#FFFFFF;--deep:#0D2B27;
  --ok:#1FA971;--warn:#F2A93B;--err:#E5484D;--info:#6B7AFF;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --r-sm:14px;--r-md:16px;--r-lg:20px;--r-xl:24px;--r-2xl:28px;
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-d);text-decoration:none;}
a:hover{color:var(--accent);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(18,165,148,.18);color:var(--ink);}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:#F1F2F0;border-radius:8px;}
::-webkit-scrollbar-thumb{background:#CFD6D2;border-radius:8px;}
::-webkit-scrollbar-thumb:hover{background:var(--brand);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
@media (min-width:1440px){:root{--container:1280px;}}
.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;}

/* 阅读进度 */
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad-brand);z-index:80;transition:width .12s linear;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:70;background:rgba(250,249,246,.86);backdrop-filter:blur(6px);border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);}
.site-header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s var(--ease);}
.site-header.scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;width:24px;height:24px;flex:0 0 auto;}
.brand-mark i{border-radius:3px;display:block;}
.brand-mark i:nth-child(1){background:#12A594;}
.brand-mark i:nth-child(2){background:#3FD0B4;}
.brand-mark i:nth-child(3){background:#7C6BFF;}
.brand-mark i:nth-child(4){background:#FF8A3D;}
.brand-name{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-link{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;font-size:15px;color:var(--text);border-radius:12px;transition:color .25s var(--ease),background .25s var(--ease);}
.nav-link:hover{color:var(--brand-d);background:var(--brand-l);}
.nav-link.active{color:var(--brand-d);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:3px;border-radius:3px;background:var(--brand);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{display:flex;align-items:center;gap:8px;height:42px;padding:0 14px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:border-color .25s var(--ease),box-shadow .25s var(--ease);}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l);}
.search-box svg{width:16px;height:16px;color:var(--muted);flex:0 0 auto;}
.search-box input{border:0;outline:0;background:transparent;width:150px;font-size:14px;color:var(--ink);}
.search-box input::placeholder{color:var(--muted);}
.menu-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;transition:all .25s var(--ease);}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand-d);background:var(--brand-l);}
.menu-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.drawer{position:fixed;inset:0;z-index:90;display:none;}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(13,43,39,.35);}
.drawer-panel{position:absolute;top:12px;right:12px;width:min(300px,84vw);background:#fff;border-radius:20px;box-shadow:var(--sh-3);padding:20px;}
.drawer-panel h2{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:10px;}
.drawer-panel ul li a{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;border-radius:14px;color:var(--ink);font-size:15px;transition:all .25s var(--ease);}
.drawer-panel ul li a:hover{background:var(--brand-l);color:var(--brand-d);}
.drawer-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer;color:var(--ink);}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:14px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s var(--ease);text-decoration:none;white-space:nowrap;}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 8px 18px rgba(18,165,148,.22);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-3);filter:saturate(1.08);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-l);color:var(--brand-d);}
.btn-light{background:#fff;color:var(--brand-d);}
.btn-light:hover{color:var(--brand-d);transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.16);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;border-radius:12px;font-size:14px;}

/* 面包屑 */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:24px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand-d);}
.crumbs .sep{color:#C9CFCB;}
.crumbs .current{color:var(--ink);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding-top:24px;padding-bottom:80px;}
.article-main{min-width:0;}
.article-head{background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r-2xl);padding:32px;position:relative;overflow:hidden;}
.article-head::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;background-image:linear-gradient(90deg,rgba(18,165,148,.10) 1px,transparent 1px),linear-gradient(0deg,rgba(18,165,148,.10) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;}
.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-l);color:var(--brand-d);font-size:12px;font-weight:600;letter-spacing:.2px;}
.chip:hover{background:var(--brand);color:#fff;}
.article-title{font-size:38px;line-height:1.28;font-weight:800;color:var(--ink);letter-spacing:-.5px;margin:16px 0 18px;position:relative;z-index:1;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);position:relative;z-index:1;}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:#C9CFCB;}
.meta-row strong{color:var(--ink);font-weight:600;}
.cover-card{margin:24px 0 0;position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);background:var(--grad-soft);}
.cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover;animation:fadeIn .6s var(--ease);}
.cover-card .cover-badge{position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.94);color:var(--brand-d);font-size:12px;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:var(--sh-1);}
@keyframes fadeIn{from{opacity:0;transform:scale(1.02);}to{opacity:1;transform:none;}}

/* 正文 */
.article-body{margin-top:32px;font-size:17px;line-height:1.85;color:var(--text);}
.article-body p{margin:0 0 1.15em;}
.article-body h2{font-size:24px;line-height:1.45;font-weight:700;color:var(--ink);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);border-radius:2px;}
.article-body h3{font-size:19px;font-weight:600;color:var(--ink);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.15em;line-height:1.9;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li::marker{color:var(--brand);}
.article-body li+li{margin-top:4px;}
.article-body a{color:var(--brand-d);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body blockquote{background:var(--brand-l);border-left:4px solid var(--brand);border-radius:0 14px 14px 0;padding:20px;color:var(--ink);margin:0 0 1.2em;font-size:16px;}
.article-body img{border-radius:var(--r-md);margin:20px auto;}
.article-body figure{margin:20px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.2em;border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.article-body th{background:var(--brand-l);color:var(--ink);font-weight:600;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;}
.article-body tr:nth-child(even) td{background:#FBFAF8;}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0;}
.article-body code{background:#F1F2F0;border-radius:6px;padding:2px 6px;font-size:14px;color:var(--brand-d);}

/* 空态 */
.empty-state{border:2px dashed var(--line);border-radius:var(--r-xl);padding:48px 24px;text-align:center;background:#fff;}
.empty-state svg{width:46px;height:46px;color:var(--brand);margin:0 auto 14px;}
.empty-state h3{font-size:19px;color:var(--ink);font-weight:700;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:20px;}

/* 文末模块 */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-row .label{font-size:14px;color:var(--muted);}
.tag{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text);transition:all .25s var(--ease);}
.tag:hover{border-color:var(--brand);background:var(--brand-l);color:var(--brand-d);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px;}
.pager-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-2);transition:all .25s var(--ease);}
.pager-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3);}
.pager-card .dir{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.4px;}
.pager-card h3{font-size:16px;color:var(--ink);font-weight:600;line-height:1.5;margin:8px 0 6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pager-card p{font-size:13px;color:var(--muted);}
.related{margin-top:44px;}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-title h2{font-size:24px;font-weight:700;color:var(--ink);letter-spacing:-.3px;}
.section-title p{font-size:14px;color:var(--muted);margin-top:6px;}
.text-link{font-size:14px;font-weight:600;color:var(--brand-d);border-bottom:2px solid rgba(18,165,148,.34);padding-bottom:2px;}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);transition:all .25s var(--ease);}
.post-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3);}
.post-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--grad-soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.post-foot .read{color:var(--brand-d);font-weight:600;}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-2);}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;}
.side-title span.bar{width:4px;height:16px;border-radius:3px;background:var(--grad-brand);}
.tip-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--text);padding:8px 0;}
.tip-list li svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:4px;}
.side-list li+li{margin-top:6px;}
.side-item{display:flex;gap:12px;padding:10px;border-radius:14px;transition:background .25s var(--ease);}
.side-item:hover{background:var(--brand-l);}
.side-num{width:28px;height:28px;flex:0 0 auto;border-radius:9px;background:var(--grad-soft);color:var(--brand-d);font-weight:800;font-size:13px;display:grid;place-items:center;font-variant-numeric:tabular-nums;}
.side-item .t{font-size:14px;color:var(--ink);font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-item .d{font-size:12px;color:var(--muted);margin-top:2px;}
.cat-links{display:grid;gap:10px;}
.cat-links a{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 14px;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink);font-weight:600;transition:all .25s var(--ease);}
.cat-links a:hover{background:var(--grad-soft);border-color:rgba(18,165,148,.4);color:var(--brand-d);}
.side-stat{display:flex;gap:12px;}
.side-stat div{flex:1;background:var(--grad-soft);border-radius:14px;padding:14px;text-align:center;}
.side-stat strong{display:block;font-size:24px;font-weight:800;color:var(--brand-d);font-variant-numeric:tabular-nums;line-height:1.1;}
.side-stat span{font-size:12px;color:var(--muted);}

/* CTA */
.cta-band{margin:0 auto 80px;}
.cta-inner{background:var(--grad-brand);border-radius:var(--r-2xl);padding:48px;color:#fff;position:relative;overflow:hidden;box-shadow:0 24px 60px rgba(18,165,148,.22);}
.cta-inner::after{content:"";position:absolute;right:-30px;bottom:-30px;width:220px;height:220px;background-image:linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(0deg,rgba(255,255,255,.14) 1px,transparent 1px);background-size:24px 24px;pointer-events:none;}
.cta-inner h2{font-size:30px;font-weight:800;letter-spacing:-.4px;margin-bottom:12px;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.9);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;position:relative;z-index:1;}

/* 页脚 */
.site-footer{position:relative;background:var(--deep);color:rgba(255,255,255,.76);padding:64px 0 28px;overflow:hidden;}
.footer-mosaic{position:absolute;top:0;left:0;right:0;height:120px;background-image:linear-gradient(90deg,rgba(63,208,180,.14) 1px,transparent 1px),linear-gradient(0deg,rgba(63,208,180,.14) 1px,transparent 1px);background-size:24px 24px;opacity:.7;pointer-events:none;}
.footer-top{position:relative;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:800;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px;}
.footer-col h3{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;}
.footer-col ul li+li{margin-top:10px;}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.7);transition:color .25s var(--ease);}
.footer-col ul li a:hover{color:#3FD0B4;}
.footer-contact{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.footer-contact strong{display:block;color:#fff;font-size:15px;margin-bottom:8px;}
.footer-bottom{position:relative;margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:#3FD0B4;}

/* 移动端底部 Tab */
.mobile-tab{display:none;}
@media (max-width:767px){
  .mobile-tab{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:60;height:60px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(20,23,26,.05);}
  body{padding-bottom:76px;}
  .container{padding:0 16px;}
  .site-footer{padding-bottom:90px;}
}

/* 响应式 */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:64px;}
  .article-side{position:static;}
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .search-box{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .article-title{font-size:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .article-head{padding:22px;border-radius:20px;}
  .article-title{font-size:26px;margin:12px 0 14px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .pager{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .cta-inner{padding:28px;border-radius:22px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .section-title h2{font-size:21px;}
  .crumbs{padding-top:16px;}
}
@media (max-width:520px){
  .article-title{font-size:24px;}
  .side-stat strong{font-size:20px;}
}

/* roulang page: category2 */
/* ============ 1. 设计令牌 ============ */
:root{
  --brand:#12A594;
  --brand-dark:#0E8A7C;
  --brand-light:#E6F6F3;
  --accent:#FF8A3D;
  --accent-light:#FFF1E6;
  --violet:#7C6BFF;
  --text:#14171A;
  --body:#4A5259;
  --muted:#8A9299;
  --line:#E5E8E4;
  --bg:#FAF9F6;
  --card:#FFFFFF;
  --footer-bg:#0D2B27;
  --ok:#1FA971;
  --warn:#F2A93B;
  --err:#E5484D;
  --info:#6B7AFF;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --r-btn:14px;
  --r-sm:16px;
  --r-md:20px;
  --r-lg:24px;
  --r-xl:28px;
  --ease:.25s cubic-bezier(.2,.7,.3,1);
  --header-h:72px;
}

/* ============ 2. 基础 reset ============ */
*,*::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","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;}
p{margin:0;}
table{border-collapse:collapse;width:100%;}
input,textarea{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-light);color:var(--brand-dark);}
body::-webkit-scrollbar{width:8px;height:8px;}
body::-webkit-scrollbar-track{background:#F1F2F0;border-radius:8px;}
body::-webkit-scrollbar-thumb{background:#CFD6D2;border-radius:8px;}

/* ============ 3. 容器与通用 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:32px;max-width:760px;}
.section-head h2{font-size:30px;line-height:1.3;letter-spacing:-.3px;}
.section-head p{margin-top:12px;font-size:15px;color:var(--muted);line-height:1.7;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}
.divider{height:1px;background:var(--line);border:0;margin:0;}
.text-link{
  color:var(--brand-dark);font-weight:600;font-size:15px;
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;
  transition:color var(--ease);
}
.text-link:hover{color:var(--accent);}

/* ============ 4. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  cursor:pointer;border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background-image:var(--grad-brand);background-size:160% 160%;color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3);background-position:100% 0;}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-light);color:var(--brand-dark);transform:translateY(-2px);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.16);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:12px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;transform:none;pointer-events:none;}

/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,249,246,.86);
  backdrop-filter:saturate(160%) blur(8px);
  -webkit-backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:var(--sh-1);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:16px;height:var(--header-h);transition:height var(--ease);}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;width:24px;height:24px;}
.brand-mark i{display:block;border-radius:3px;background-image:var(--grad-brand);}
.brand-mark i:nth-child(2){opacity:.7;}
.brand-mark i:nth-child(3){opacity:.55;}
.brand-mark i:nth-child(4){opacity:.85;}
.brand-name{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.4px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:40px;padding:0 12px;border-radius:12px;
  font-size:15px;color:var(--body);transition:color var(--ease),background var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background-image:var(--grad-brand);opacity:0;transform:scaleX(.4);transition:opacity var(--ease),transform var(--ease);
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-light);}
.nav-link.active{color:var(--brand-dark);font-weight:700;}
.nav-link.active::after{opacity:1;transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--text);
}
.menu-toggle svg{width:20px;height:20px;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);z-index:70;
  background:#fff;border-radius:20px 0 0 20px;box-shadow:-18px 0 44px rgba(20,23,26,.14);
  padding:24px 20px calc(24px + env(safe-area-inset-bottom));
  transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.drawer a.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 16px;border-radius:14px;font-size:15px;color:var(--text);
  border:1px solid var(--line);background:#fff;transition:var(--ease);
}
.drawer a.drawer-link:hover,.drawer a.drawer-link.active{background:var(--brand-light);border-color:rgba(18,165,148,.4);color:var(--brand-dark);font-weight:600;}
.drawer .btn{margin-top:12px;}
.overlay{
  position:fixed;inset:0;background:rgba(13,43,39,.42);z-index:65;opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 6. 面包屑 ============ */
.breadcrumb{padding-top:24px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.breadcrumb a{color:var(--muted);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--brand-dark);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--text);font-weight:600;}

/* ============ 7. 分类页头 ============ */
.cat-hero{position:relative;padding:32px 0 64px;overflow:hidden;}
.cat-hero::before{
  content:"";position:absolute;inset:0 0 auto 0;height:420px;
  background-image:var(--grad-soft);z-index:-2;
}
.cat-hero::after{
  content:"";position:absolute;top:0;right:0;width:320px;height:240px;z-index:-1;opacity:.08;
  background-image:
    repeating-linear-gradient(0deg,rgba(18,165,148,.9) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(18,165,148,.9) 0 1px,transparent 1px 24px);
  pointer-events:none;
}
.cat-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.cat-hero h1{font-size:46px;line-height:1.18;letter-spacing:-.5px;margin-bottom:16px;}
.cat-hero h1 .hl{color:var(--brand-dark);}
.cat-hero-lead{font-size:16px;color:var(--body);max-width:560px;line-height:1.8;}
.cat-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.kpi-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:32px;}
.kpi{
  background:#fff;border:1px solid rgba(18,165,148,.2);border-radius:14px;
  padding:14px 16px;box-shadow:var(--sh-1);
}
.kpi b{display:block;font-size:30px;line-height:1.1;font-weight:800;color:var(--brand-dark);font-variant-numeric:tabular-nums;}
.kpi span{display:block;margin-top:4px;font-size:13px;color:var(--muted);}
.cat-hero-media{position:relative;}
.cat-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-3);
}
.float-chip{
  position:absolute;background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:10px 16px;box-shadow:var(--sh-2);font-size:13px;color:var(--body);
  display:flex;align-items:center;gap:8px;
}
.float-chip strong{color:var(--brand-dark);font-size:15px;font-variant-numeric:tabular-nums;}
.float-chip.top{top:16px;left:-16px;}
.float-chip.bottom{bottom:16px;right:-16px;border-left:4px solid var(--accent);}

/* ============ 8. 数据条 ============ */
.stat-strip{
  background:var(--brand-light);border-radius:var(--r-lg);
  padding:28px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
}
.stat-item{display:flex;gap:14px;align-items:flex-start;padding:0 20px;border-right:1px solid rgba(18,165,148,.2);}
.stat-item:last-child{border-right:0;}
.stat-item svg{width:24px;height:24px;flex-shrink:0;color:var(--brand-dark);margin-top:2px;}
.stat-item h3{font-size:15px;font-weight:700;margin-bottom:4px;}
.stat-item p{font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ 9. 双列大卡网格（分类页专属版式） ============ */
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.cat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-2);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;
}
.cat-card-link{display:flex;flex-direction:column;width:100%;}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3);}
.cat-card-media{position:relative;overflow:hidden;}
.cat-card-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease-out;
}
.cat-card:hover .cat-card-media img{transform:scale(1.04);}
.cat-card-media::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(13,43,39,.55) 0%,rgba(13,43,39,.12) 46%,rgba(13,43,39,0) 72%);
}
.cat-card-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  background:rgba(255,255,255,.94);color:var(--brand-dark);
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;
}
.cat-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.cat-card-body h3{font-size:19px;line-height:1.45;}
.cat-card-desc{font-size:14px;line-height:1.7;color:var(--muted);}
.cat-points{display:flex;flex-direction:column;gap:6px;margin-top:2px;}
.cat-points li{
  position:relative;padding-left:18px;font-size:13px;color:var(--body);line-height:1.7;
}
.cat-points li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;
  background-image:var(--grad-brand);
}
.cat-card-foot{
  margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.cat-meta{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.mini-btn{
  display:inline-flex;align-items:center;gap:6px;min-height:40px;padding:0 16px;border-radius:12px;
  background:var(--brand-light);color:var(--brand-dark);font-size:13px;font-weight:700;
  transition:var(--ease);
}
.cat-card:hover .mini-btn{background-image:var(--grad-brand);color:#fff;}
.mini-btn svg{width:14px;height:14px;}

/* ============ 10. 选择建议 ============ */
.pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.pick-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);transition:var(--ease);
}
.pick-card:hover{transform:translateY(-4px);box-shadow:var(--sh-3);border-color:rgba(18,165,148,.4);}
.pick-index{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:10px;background:var(--grad-soft);color:var(--brand-dark);
  font-weight:800;font-size:15px;margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.pick-card h3{font-size:18px;margin-bottom:10px;}
.pick-card p{font-size:14px;line-height:1.8;color:var(--body);}
.pick-card .chip-row{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  font-size:12px;padding:5px 12px;border-radius:999px;background:var(--bg);
  border:1px solid var(--line);color:var(--body);
}

/* ============ 11. 对比表 ============ */
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-2);
}
.table-scroll{overflow-x:auto;}
table.compare{min-width:680px;font-size:14px;}
table.compare thead th{
  background:var(--brand-light);color:var(--text);font-weight:700;font-size:14px;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare tbody td{padding:16px 20px;border-bottom:1px solid var(--line);color:var(--body);}
table.compare tbody tr:nth-child(even){background:#FCFCFB;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td:first-child{font-weight:600;color:var(--text);}
.tag-soft{
  display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;
  background:var(--accent-light);color:#C25F1B;font-weight:600;
}
.tag-soft.green{background:var(--brand-light);color:var(--brand-dark);}

/* ============ 12. 维护说明 ============ */
.maintain{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.maintain-item{
  padding:24px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);
  border-top:3px solid var(--brand);
}
.maintain-item h3{font-size:17px;margin-bottom:8px;}
.maintain-item p{font-size:14px;line-height:1.8;color:var(--muted);}
.maintain-item:nth-child(2){border-top-color:var(--accent);}
.maintain-item:nth-child(3){border-top-color:var(--violet);}

/* ============ 13. FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;}
details.faq{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  transition:border-color var(--ease),background var(--ease);
}
details.faq summary{
  list-style:none;cursor:pointer;min-height:56px;padding:20px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.5;
}
details.faq summary::-webkit-details-marker{display:none;}
details.faq summary svg{width:20px;height:20px;flex-shrink:0;color:var(--brand-dark);transition:transform var(--ease);}
details.faq[open]{background:rgba(230,246,243,.6);border-color:rgba(18,165,148,.35);}
details.faq[open] summary svg{transform:rotate(180deg);}
details.faq .faq-body{
  padding:0 24px 22px;border-top:1px dashed var(--line);
  margin-top:-2px;padding-top:16px;font-size:15px;line-height:1.85;color:var(--body);
}

/* ============ 14. CTA ============ */
.cta-band{
  background-image:var(--grad-brand);background-size:160% 160%;
  border-radius:var(--r-xl);padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-3);
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.3;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:520px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex-shrink:0;}

/* ============ 15. 页脚 ============ */
.site-footer{
  position:relative;background:var(--footer-bg);color:rgba(255,255,255,.72);
  margin-top:96px;padding:64px 0 28px;overflow:hidden;
}
.footer-mosaic{
  position:absolute;top:0;left:0;right:0;height:120px;opacity:.09;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.9) 0 1px,transparent 1px 24px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.9) 0 1px,transparent 1px 24px);
}
.footer-top{
  position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:19px;font-weight:800;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:360px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--ease);}
.footer-col ul a:hover{color:#3FD0B4;}
.footer-contact{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.footer-contact strong{display:block;color:#fff;margin-bottom:6px;font-size:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:24px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7);transition:color var(--ease);}
.footer-bottom a:hover{color:#3FD0B4;}

/* ============ 16. 移动端底部 Tab ============ */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(20,23,26,.06);
}
.mobile-tab ul{display:grid;grid-template-columns:repeat(5,1fr);}
.mobile-tab li{display:flex;}
.mobile-tab a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  min-height:60px;font-size:12px;color:var(--muted);position:relative;transition:color var(--ease);
}
.mobile-tab a svg{width:22px;height:22px;}
.mobile-tab a.active{color:var(--brand-dark);font-weight:600;}
.mobile-tab a.active::before{
  content:"";position:absolute;top:0;width:22px;height:2px;border-radius:2px;background-image:var(--grad-brand);
}
.mobile-tab a.tab-center{
  justify-content:flex-start;padding-top:6px;
}
.mobile-tab a.tab-center .tab-bubble{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;background-image:var(--grad-brand);color:#fff;
  margin-top:-18px;box-shadow:0 10px 22px rgba(18,165,148,.35);
}
.mobile-tab a.tab-center .tab-bubble svg{width:22px;height:22px;}
.mobile-tab a.tab-center span.tab-label{font-size:12px;}

/* ============ 17. 图片懒加载 ============ */
img[loading="lazy"]{opacity:0;transition:opacity .5s ease;}
img[loading="lazy"].is-loaded{opacity:1;}

/* ============ 18. 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .main-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
  .cat-hero h1{font-size:36px;}
  .cat-hero-media{order:-1;}
  .float-chip.top{left:8px;}
  .float-chip.bottom{right:8px;}
  .kpi-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:24px;}
  .stat-item{border-right:0;padding:0;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;}
  .section-head h2{font-size:26px;}
}
@media (max-width:767px){
  body{padding-bottom:76px;}
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .cat-hero{padding:16px 0 48px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero-lead{font-size:15px;}
  .cat-hero-cta .btn{width:100%;}
  .kpi b{font-size:24px;}
  .card-grid-2,.pick-grid,.maintain{grid-template-columns:1fr;}
  .cat-card-body{padding:20px;}
  .cta-band{border-radius:var(--r-lg);padding:32px 24px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .mobile-tab{display:block;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:48px 0 24px;margin-top:64px;}
  .footer-about{max-width:none;}
  .btn{min-height:44px;}
  table.compare thead th,table.compare tbody td{padding:14px 16px;}
}
@media (max-width:480px){
  .kpi-row{grid-template-columns:1fr 1fr;gap:10px;}
  .stat-strip{grid-template-columns:1fr;}
  .cat-hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand:#12A594;
  --brand-dark:#0E8A7C;
  --brand-light:#E6F6F3;
  --accent:#FF8A3D;
  --accent-light:#FFF1E6;
  --violet:#7C6BFF;
  --ink:#14171A;
  --body:#4A5259;
  --muted:#8A9299;
  --line:#E5E8E4;
  --bg:#FAF9F6;
  --card:#FFFFFF;
  --dark:#0D2B27;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --r-12:12px; --r-14:14px; --r-16:16px; --r-20:20px; --r-24:24px; --r-28:28px;
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
h1{font-size:46px;line-height:1.18;letter-spacing:-.5px}
h2{font-size:30px}
h3{font-size:19px;font-weight:600;line-height:1.45}
h4{font-size:17px;font-weight:600;line-height:1.45}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
img.lazy-fade{opacity:0;transition:opacity .5s ease-out}
img.lazy-fade.is-loaded{opacity:1}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
svg{display:block}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-light);color:var(--brand-dark)}

/* ============ 容器与通用 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:10px}
.section-head p{font-size:15px;color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);border:1px solid rgba(18,165,148,.22);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-14);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease),color .25s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:rgba(18,165,148,.5);background:var(--brand-light);color:var(--brand-dark)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(13,43,39,.24)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:var(--r-12)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;box-shadow:none;transform:none;cursor:not-allowed}
.btn .spinner{
  width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.45);border-top-color:#fff;
  animation:spin .7s linear infinite;display:none;
}
.btn.is-loading .spinner{display:block}
@keyframes spin{to{transform:rotate(360deg)}}

.text-link{
  color:var(--brand-dark);font-weight:600;font-size:15px;
  border-bottom:2px solid rgba(18,165,148,.5);padding-bottom:2px;
  transition:color .25s var(--ease),border-color .25s var(--ease);
}
.text-link:hover{color:var(--accent);border-color:rgba(255,138,61,.6)}

.pill{
  display:inline-block;font-size:12px;font-weight:600;line-height:1.6;
  color:var(--brand-dark);background:var(--brand-light);
  border-radius:999px;padding:3px 11px;
}
.pill--accent{color:#B85A18;background:var(--accent-light)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,249,246,.88);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.93);box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);flex-shrink:0}
.brand-mark{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;width:24px;height:24px}
.brand-mark i{border-radius:3px;display:block}
.brand-mark i:nth-child(1){background:var(--brand)}
.brand-mark i:nth-child(2){background:#3FD0B4}
.brand-mark i:nth-child(3){background:#7C6BFF}
.brand-mark i:nth-child(4){background:var(--accent)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px;flex:1}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:var(--r-12);
  font-size:15px;font-weight:500;color:var(--body);
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--brand-dark);background:var(--brand-light)}
.nav-link.active{color:var(--brand-dark);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;border-radius:var(--r-12);
  background:#fff;border:1px solid var(--line);color:var(--muted);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.search-box input{border:0;outline:none;background:transparent;width:132px;font-size:14px;color:var(--ink)}
.search-icon-btn{display:none;width:42px;height:42px;border-radius:var(--r-12);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;color:var(--body)}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-12);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(13,43,39,.4);opacity:0;visibility:hidden;transition:.25s var(--ease);z-index:70}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:12px;right:12px;bottom:12px;width:min(300px,86vw);z-index:71;
  background:#fff;border-radius:var(--r-20);box-shadow:var(--sh-2);
  padding:20px;transform:translateX(112%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer h3{font-size:14px;color:var(--muted);font-weight:600;margin:12px 0 4px}
.drawer a{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-12);font-size:15px;font-weight:500;color:var(--ink);transition:background .25s var(--ease),color .25s var(--ease)}
.drawer a:hover{background:var(--brand-light);color:var(--brand-dark)}
.drawer a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.drawer .drawer-close{align-self:flex-end;width:36px;height:36px;border-radius:var(--r-12);background:var(--bg);display:flex;align-items:center;justify-content:center}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:24px 0 0}
.breadcrumb a{color:var(--muted);transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--brand-dark)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.breadcrumb .sep{color:#C9CFC9}

/* ============ 页头 Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--grad-soft);border-bottom:1px solid var(--line)}
.page-hero::after{
  content:"";position:absolute;top:-40px;right:-40px;width:360px;height:360px;
  background-image:linear-gradient(rgba(18,165,148,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(18,165,148,.08) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:44px 0 72px}
.hero-copy h1{margin-bottom:16px}
.hero-copy .hero-sub{font-size:17px;color:var(--body);max-width:520px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px}
.stat-row{display:flex;flex-wrap:wrap;gap:12px}
.stat{
  background:#fff;border:1px solid rgba(18,165,148,.2);border-radius:var(--r-16);
  padding:12px 18px;min-width:126px;box-shadow:var(--sh-1);
  border-left:4px solid var(--brand);
}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--brand-dark);font-variant-numeric:tabular-nums;line-height:1.1}
.stat span{font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-28);box-shadow:0 18px 44px rgba(20,23,26,.14)}
.float-badge{
  position:absolute;background:#fff;border:1px solid rgba(18,165,148,.28);
  border-radius:var(--r-14);padding:10px 14px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;line-height:1.3;
}
.float-badge b{font-size:18px;color:var(--accent);font-variant-numeric:tabular-nums}
.float-badge span{font-size:12px;color:var(--muted)}
.float-badge--tr{top:18px;right:-14px}
.float-badge--bl{bottom:-16px;left:-14px}

/* ============ 筛选胶囊 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-20);
  padding:16px 20px;box-shadow:var(--sh-1);margin-bottom:44px;
}
.filter-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:14px;font-weight:600;color:var(--body);
  transition:all .25s var(--ease);
}
.filter-pill:hover{border-color:rgba(18,165,148,.5);color:var(--brand-dark);background:var(--brand-light)}
.filter-pill.is-active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:var(--sh-2)}

/* ============ 卡片网格 ============ */
.group-block{margin-bottom:64px;scroll-margin-top:110px}
.group-block:last-of-type{margin-bottom:0}
.group-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:8px}
.group-head h3{font-size:22px}
.group-desc{font-size:14px;color:var(--muted);margin-bottom:24px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-20);
  overflow:hidden;box-shadow:var(--sh-2);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.card-link{display:block;height:100%}
.card-media{position:relative;overflow:hidden;background:var(--grad-soft)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(13,43,39,.35) 100%)}
.card-media .pill{position:absolute;left:12px;bottom:12px;z-index:1}
.card-body{padding:20px 22px 22px}
.card-title{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.45}
.card-desc{font-size:14px;line-height:1.7;color:var(--muted);margin-bottom:16px}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
.card-meta time{font-size:13px;color:var(--muted)}
.card-more{font-size:14px;font-weight:600;color:var(--brand-dark)}
.card:hover .card-more{color:var(--accent)}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-20);
  padding:26px 22px;box-shadow:var(--sh-1);position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.step-num{
  width:40px;height:40px;border-radius:var(--r-12);background:var(--grad-soft);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:var(--brand-dark);margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ============ 保障条 ============ */
.assure{background:var(--brand-light);border-radius:var(--r-24);padding:28px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.assure-item{display:flex;gap:12px;align-items:flex-start;padding-right:20px;border-right:1px solid rgba(18,165,148,.18)}
.assure-item:last-child{border-right:0;padding-right:0}
.assure-item svg{width:24px;height:24px;color:var(--brand-dark);flex-shrink:0;margin-top:2px}
.assure-item strong{display:block;font-size:15px;color:var(--ink);margin-bottom:2px}
.assure-item span{font-size:13px;color:var(--body)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:58px;padding:18px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{width:20px;height:20px;flex-shrink:0;color:var(--muted);transition:transform .25s var(--ease)}
.faq-item[open]{border-left:3px solid var(--brand);background:rgba(230,246,243,.6)}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand)}
.faq-answer{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--body);border-top:1px dashed var(--line);padding-top:16px;margin:0 0 0;}

/* ============ CTA ============ */
.cta-section{padding:0 0 88px}
.cta-card{
  background:var(--grad-brand);border-radius:var(--r-28);padding:48px;
  display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;
  box-shadow:0 24px 60px rgba(18,165,148,.28);color:#fff;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:280px;height:280px;
  background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-copy p{font-size:15px;color:rgba(255,255,255,.88);margin-bottom:26px;max-width:440px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.form-card{
  position:relative;z-index:1;background:#fff;border-radius:var(--r-24);
  padding:28px;box-shadow:0 18px 40px rgba(13,43,39,.2);color:var(--body);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13px;color:var(--muted);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-14);
  border:1px solid var(--line);background:#fff;font-size:15px;color:var(--ink);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.field textarea{height:96px;padding:12px 16px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light)}
.field.has-error input,.field.has-error textarea{border-color:#E5484D}
.field .err{display:none;font-size:13px;color:#E5484D;margin-top:6px}
.field.has-error .err{display:block}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-status{font-size:13px;color:var(--success,#1FA971);margin-top:12px;display:none}
.form-status.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);position:relative;overflow:hidden;padding-top:64px}
.footer-mosaic{
  position:absolute;top:0;left:0;right:0;height:120px;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:24px 24px;pointer-events:none;
}
.footer-top{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .25s var(--ease)}
.footer-col a:hover{color:#3FD0B4}
.footer-contact{font-size:13px;line-height:1.8;color:rgba(255,255,255,.66)}
.footer-contact strong{display:block;font-size:14px;color:#fff;margin-bottom:6px}
.footer-bottom{
  position:relative;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#3FD0B4}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  height:60px;font-size:12px;color:var(--muted);position:relative;
  transition:color .25s var(--ease);
}
.tab-item svg{width:22px;height:22px}
.tab-item.is-active{color:var(--brand-dark);font-weight:600}
.tab-item.is-active::before{content:"";position:absolute;top:0;width:24px;height:2px;border-radius:2px;background:var(--brand)}
.tab-cta-icon{
  width:52px;height:52px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;transform:translateY(-18px);
  box-shadow:0 12px 26px rgba(18,165,148,.38);margin-bottom:-16px;
}
.tab-cta-icon svg{width:24px;height:24px}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  h1{font-size:34px}
  h2{font-size:25px}
  .section{padding:72px 0}
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .search-box{display:none}
  .search-icon-btn{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:32px 0 56px}
  .hero-media img{aspect-ratio:16/9}
  .float-badge--tr{right:10px}
  .float-badge--bl{left:10px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .assure{grid-template-columns:repeat(2,1fr);gap:20px}
  .assure-item:nth-child(2){border-right:0;padding-right:0}
  .assure-item{border-right:0;padding-right:0}
  .cta-card{grid-template-columns:1fr;padding:36px}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{padding-bottom:76px}
  .container{padding:0 16px}
  h1{font-size:30px}
  h2{font-size:22px}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .header-inner{height:62px;gap:12px}
  .brand{font-size:17px}
  .tabbar{display:flex}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .assure{grid-template-columns:1fr;padding:22px}
  .cta-card{padding:28px 22px}
  .cta-copy h2{font-size:23px}
  .form-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .filter-bar{padding:12px;gap:8px}
  .filter-pill{height:36px;padding:0 14px;font-size:13px}
  .card-grid{gap:18px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .stat{flex:1 1 calc(50% - 6px);min-width:0;padding:10px 14px}
  .stat b{font-size:22px}
  .float-badge{padding:8px 11px}
  .float-badge b{font-size:16px}
}

/* roulang page: category4 */
:root{
  --brand:#12A594;
  --brand-deep:#0E8A7C;
  --brand-soft:#E6F6F3;
  --brand-ring:rgba(18,165,148,.22);
  --accent:#FF8A3D;
  --accent-soft:#FFF1E6;
  --violet:#7C6BFF;
  --ink:#14171A;
  --text:#4A5259;
  --muted:#8A9299;
  --line:#E5E8E4;
  --bg:#FAF9F6;
  --card:#FFFFFF;
  --dark:#0D2B27;
  --grad-brand:linear-gradient(135deg,#12A594 0%,#3FD0B4 45%,#7C6BFF 100%);
  --grad-soft:linear-gradient(135deg,#E6F6F3 0%,#F2F0FF 100%);
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 1px 3px rgba(20,23,26,.06);
  --sh-2:0 6px 18px rgba(20,23,26,.06);
  --sh-3:0 18px 44px rgba(18,165,148,.18);
  --r-xs:10px;
  --r-sm:12px;
  --r-md:14px;
  --r-lg:16px;
  --r-xl:20px;
  --r-2xl:24px;
  --r-3xl:28px;
  --tr:.25s cubic-bezier(.2,.7,.3,1);
  --ease:cubic-bezier(.2,.7,.3,1);
  --wrap: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","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:-.2px}
h1{font-size:clamp(28px,4.1vw,42px);line-height:1.2;letter-spacing:-.5px}
h2{font-size:clamp(22px,2.6vw,30px)}
h3{font-size:18px;font-weight:600;line-height:1.45}
h4{font-size:16px;font-weight:600;line-height:1.5}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
::selection{background:var(--brand-soft);color:var(--brand-deep)}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:#F1F2F0;border-radius:8px}
::-webkit-scrollbar-thumb{background:#CFD6D2;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--brand)}

.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1280px}}
.main-nav{display:flex;align-items:center;gap:2px}
.brand-name{font-weight:700}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(250,249,246,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:background var(--tr),box-shadow var(--tr),border-color var(--tr)}
.site-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;transition:height var(--tr)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:24px;height:24px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px}
.brand-mark i{display:block;border-radius:3px;background:var(--grad-brand)}
.brand-mark i:nth-child(2){opacity:.72}
.brand-mark i:nth-child(3){opacity:.72}
.brand-mark i:nth-child(4){opacity:.45}
.brand-name{font-size:19px;color:var(--ink);letter-spacing:-.4px}
.main-nav{margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 13px;font-size:15px;color:var(--text);border-radius:var(--r-xs);transition:color var(--tr),background var(--tr)}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft)}
.nav-link.active{color:var(--brand-deep);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:2px;height:3px;border-radius:3px;background:var(--grad-brand)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search svg{position:absolute;left:13px;width:16px;height:16px;color:var(--muted);pointer-events:none}
.nav-search input{width:196px;height:40px;padding:0 16px 0 36px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:14px;transition:border-color var(--tr),box-shadow var(--tr),width var(--tr)}
.nav-search input::placeholder{color:var(--muted)}
.nav-search input:focus{outline:none;width:224px;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle svg{width:20px;height:20px;color:var(--ink)}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);white-space:nowrap;cursor:pointer}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-deep)}
.btn-light{background:#fff;color:var(--brand-deep)}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.18)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
.btn-outline-light:hover{background:rgba(255,255,255,.14)}
.btn-sm{height:40px;padding:0 18px;border-radius:var(--r-sm);font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-loading{opacity:.6;pointer-events:none}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* drawer */
.backdrop{position:fixed;inset:0;background:rgba(13,43,39,.42);opacity:0;pointer-events:none;transition:opacity var(--tr);z-index:85}
.backdrop.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:90;padding:24px;border-radius:20px 0 0 20px;box-shadow:-18px 0 44px rgba(13,43,39,.18);transform:translateX(102%);transition:transform var(--tr);overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);display:grid;place-items:center}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{padding:13px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--text);border:1px solid transparent}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:600;border-color:var(--brand-ring)}
.drawer-cta{margin-top:20px}

/* ============ breadcrumb ============ */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:24px 0 0;font-size:13px;color:var(--muted)}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs .sep{color:#C4CBC7}
.crumbs .current{color:var(--ink)}

/* ============ page head ============ */
.page-head{position:relative;overflow:hidden;margin-top:20px;padding:48px;border:1px solid var(--line);border-radius:var(--r-3xl);background:var(--grad-soft);display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.mosaic-tile{position:absolute;pointer-events:none;opacity:.08;background-image:linear-gradient(90deg,#12A594 1px,transparent 1px),linear-gradient(180deg,#12A594 1px,transparent 1px);background-size:24px 24px}
.page-head .mosaic-tile{top:0;right:0;width:280px;height:180px}
.head-copy{position:relative;z-index:1}
.head-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--brand-ring);color:var(--brand-deep);font-size:13px;font-weight:600}
.head-sub{margin-top:18px;font-size:16px;line-height:1.8;color:var(--text);max-width:560px}
.head-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.stat-badge{min-width:126px;padding:12px 18px;border-radius:var(--r-md);background:#fff;border:1px solid var(--brand-ring);box-shadow:var(--sh-1)}
.stat-badge b{display:block;font-size:26px;font-weight:800;line-height:1.1;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-badge b.orange{color:var(--accent)}
.stat-badge span{display:block;margin-top:4px;font-size:13px;color:var(--muted)}
.head-visual{position:relative;z-index:1}
.head-visual .main-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-3xl);box-shadow:var(--sh-3)}
.float-badge{position:absolute;padding:10px 14px;border-radius:var(--r-md);background:#fff;border:1px solid var(--brand-ring);box-shadow:var(--sh-2);font-size:12px;color:var(--muted);line-height:1.4}
.float-badge b{display:block;font-size:16px;color:var(--brand-deep);font-weight:800;font-variant-numeric:tabular-nums}
.float-badge.top{top:16px;right:-10px}
.float-badge.bottom{bottom:18px;left:-14px}
.float-thumb{position:absolute;right:22px;bottom:-18px;width:120px;height:90px;border-radius:var(--r-lg);object-fit:cover;border:4px solid #fff;box-shadow:var(--sh-2)}

/* ============ section ============ */
.section{padding:64px 0}
.section-tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-sub{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.7}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;font-weight:600;border-bottom:2px solid var(--brand);padding-bottom:2px;transition:color var(--tr),border-color var(--tr)}
.text-link:hover{color:var(--accent);border-color:var(--accent)}
.text-link:hover svg{transform:translateX(3px)}
.text-link svg{width:16px;height:16px;transition:transform var(--tr)}

/* ============ faq ============ */
.faq-list{display:grid;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:border-color var(--tr),background var(--tr),box-shadow var(--tr)}
.faq-item:hover{border-color:var(--brand-ring);box-shadow:var(--sh-2)}
.faq-item[open]{background:rgba(230,246,243,.6);border-left:3px solid var(--brand)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{flex:0 0 auto;width:20px;height:20px;color:var(--brand);transition:transform var(--tr)}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-body{padding:16px 24px 22px;border-top:1px dashed var(--line);font-size:15px;line-height:1.85;color:var(--text)}
.faq-body p+p{margin-top:10px}

/* ============ help layout ============ */
.help-layout{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.timeline{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-2xl);padding:28px;box-shadow:var(--sh-2)}
.timeline h3{margin-bottom:6px}
.timeline .tl-note{font-size:13px;color:var(--muted);margin-bottom:22px}
.timeline ol{position:relative;padding-left:30px}
.timeline ol::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;border-left:2px dashed var(--line)}
.timeline li{position:relative;padding-bottom:24px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-30px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px var(--brand-soft)}
.node-step{display:block;font-size:12px;letter-spacing:.08em;color:var(--muted)}
.node-title{font-size:16px;font-weight:600;color:var(--ink);margin-top:4px}
.node-desc{font-size:14px;line-height:1.7;color:var(--text);margin-top:4px}
.timeline-foot{margin-top:22px;padding-top:20px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted)}

.topic-list{display:grid;gap:20px}
.topic-card{display:grid;grid-template-columns:200px 1fr;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-2);overflow:hidden;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr)}
.topic-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.topic-card .thumb{overflow:hidden;height:100%}
.topic-card .thumb img{width:100%;height:100%;min-height:180px;object-fit:cover;transition:transform .4s var(--ease)}
.topic-card:hover .thumb img{transform:scale(1.04)}
.topic-body{padding:22px 24px}
.pill{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:600}
.topic-body h3{margin:12px 0 8px}
.excerpt{font-size:14px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13px;color:var(--muted)}
.read-link{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-weight:600}
.read-link:hover{color:var(--accent)}
.read-link svg{width:14px;height:14px}

/* ============ checklist ============ */
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:26px;box-shadow:var(--sh-2);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr)}
.check-card:hover{transform:translateY(-4px);border-color:rgba(18,165,148,.4);box-shadow:var(--sh-3)}
.check-num{width:42px;height:42px;border-radius:var(--r-sm);display:grid;place-items:center;background:var(--grad-soft);color:var(--brand-deep);font-weight:800;font-variant-numeric:tabular-nums}
.check-card h3{margin:16px 0 8px}
.check-card p{font-size:14px;line-height:1.75;color:var(--text)}
.check-list{margin-top:14px;display:grid;gap:8px}
.check-list li{position:relative;padding-left:20px;font-size:14px;color:var(--text)}
.check-list li::before{content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:2px;background:var(--brand-soft);border:1px solid var(--brand)}

/* ============ form ============ */
.form-wrap{display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:start}
.form-intro{background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r-2xl);padding:28px}
.form-intro h3{margin-bottom:10px}
.form-intro p{font-size:14px;line-height:1.8;color:var(--text)}
.intro-list{margin-top:18px;display:grid;gap:10px}
.intro-list li{display:flex;gap:10px;font-size:14px;color:var(--text)}
.intro-list svg{flex:0 0 auto;width:18px;height:18px;margin-top:3px;color:var(--brand)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-2xl);padding:32px;box-shadow:var(--sh-2)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{display:flex;flex-direction:column}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;padding:0 16px;height:48px;font-size:15px;transition:border-color var(--tr),box-shadow var(--tr)}
.field textarea{height:auto;min-height:132px;padding:14px 16px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.field input:invalid:not(:placeholder-shown){border-color:#E5484D}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px}
.field .err{font-size:13px;color:#E5484D;margin-top:6px;display:none}
.field.has-error input,.field.has-error textarea{border-color:#E5484D}
.field.has-error .err{display:block}
.form-actions{display:flex;align-items:center;gap:16px;margin-top:24px;flex-wrap:wrap}
.form-status{margin-top:14px;font-size:14px;color:var(--brand-deep);display:none}
.form-status.show{display:block}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}

/* ============ cta ============ */
.cta-band{position:relative;overflow:hidden;background:var(--grad-brand);border-radius:var(--r-3xl);padding:48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:var(--sh-3)}
.cta-band .mosaic-tile{inset:0;opacity:.09;background-image:linear-gradient(90deg,#fff 1px,transparent 1px),linear-gradient(180deg,#fff 1px,transparent 1px)}
.cta-copy{position:relative;z-index:1;max-width:660px}
.cta-copy h2{color:#fff}
.cta-copy p{margin-top:12px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9)}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto}

/* ============ footer ============ */
.site-footer{position:relative;overflow:hidden;margin-top:96px;background:var(--dark);color:rgba(255,255,255,.72)}
.footer-mosaic{position:absolute;top:0;left:0;right:0;height:120px;opacity:.08;background-image:linear-gradient(90deg,#3FD0B4 1px,transparent 1px),linear-gradient(180deg,#3FD0B4 1px,transparent 1px);background-size:24px 24px}
.site-footer .container{position:relative;z-index:1}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 48px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-name{font-size:18px;color:#fff;font-weight:700}
.footer-about{margin-top:16px;max-width:340px;font-size:14px;line-height:1.85}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color var(--tr)}
.footer-col a:hover{color:#fff}
.footer-contact{font-size:14px;line-height:1.85}
.footer-contact strong{display:block;color:#fff;font-size:14px;margin-bottom:8px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:24px 0 32px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ============ tabbar ============ */
.tabbar{display:none}
@media (max-width:767px){
  body{padding-bottom:76px}
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(20,23,26,.06)}
  .tab-item{position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;min-height:44px;font-size:12px;color:var(--muted);transition:color var(--tr)}
  .tab-item svg{width:22px;height:22px}
  .tab-item.active{color:var(--brand-deep)}
  .tab-item.active::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:2px;border-radius:0 0 3px 3px;background:var(--brand)}
  .tab-center .tab-ico{width:46px;height:46px;margin-top:-20px;border-radius:50%;display:grid;place-items:center;background:var(--grad-brand);color:#fff;box-shadow:var(--sh-3)}
  .tab-center .tab-ico svg{width:22px;height:22px}
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .page-head{grid-template-columns:1fr;gap:32px;padding:36px}
  .page-head .mosaic-tile{width:200px;height:140px}
  .help-layout{grid-template-columns:1fr;gap:28px}
  .timeline{position:static}
  .check-grid{grid-template-columns:1fr 1fr}
  .form-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 36px}
  .section{padding:56px 0}
  .cta-band{padding:36px}
}
@media (max-width:767px){
  .header-actions .btn-sm{display:none}
  .page-head{padding:28px 22px;border-radius:var(--r-2xl)}
  .float-badge{display:none}
  .float-thumb{display:none}
  .head-sub{font-size:15px}
  .check-grid{grid-template-columns:1fr}
  .topic-card{grid-template-columns:1fr}
  .topic-card .thumb img{min-height:0;height:180px}
  .topic-body{padding:20px}
  .form-card{padding:22px}
  .form-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px;border-radius:var(--r-2xl)}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .footer-top{grid-template-columns:1fr;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .head-actions .btn{width:100%}
  .stat-badge{flex:1 1 calc(50% - 12px);min-width:0}
  .btn{height:44px;padding:0 18px}
  .footer-brand .brand-name{font-size:17px}
}