/* roulang page: index */
/* ============ 设计令牌 ============ */
:root{
  --brand:#0E9E82;
  --brand-deep:#0A7A66;
  --brand-soft:#E6F6F1;
  --accent:#F2814A;
  --accent-soft:#FDEDE4;
  --indigo:#5B5BD6;
  --ink:#10231F;
  --text:#0F1F1C;
  --body:#41524E;
  --muted:#7C8C88;
  --bg:#F7F9F8;
  --surface:#FFFFFF;
  --sub:#EEF4F2;
  --border:#E3EAE7;
  --border-hover:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,158,130,.12) 0%,rgba(63,198,166,.08) 55%,rgba(242,129,74,.10) 100%);
  --r-xs:10px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-hero:28px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(16,35,31,.06);
  --sh-md:0 8px 24px rgba(16,35,31,.08);
  --sh-lg:0 20px 48px rgba(16,35,31,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans","Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}

/* ============ 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:1.85;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--t)}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:none;cursor:pointer}
table{border-collapse:collapse}
::selection{background:rgba(14,158,130,.18)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-sm);border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1.2;padding:14px 28px;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t),opacity var(--t);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-md)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-md);background:var(--brand-soft)}
.btn-ghost:active{transform:translateY(0)}
.btn-plain{background:#fff;color:var(--text);border-color:var(--border)}
.btn-plain:hover{border-color:var(--border-hover);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-sm)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:var(--r-xs)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none;box-shadow:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  transition:color var(--t);
}
.btn-text .arw{transition:transform var(--t)}
.btn-text:hover{color:var(--brand-deep)}
.btn-text:hover .arw{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;font-weight:600;white-space:nowrap;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#C4551F}
.badge-line{background:#fff;color:var(--brand-deep);border:1px solid var(--border-hover)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:var(--r-pill);
  background:var(--sub);color:var(--body);font-size:12px;line-height:1;font-weight:500;
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:200;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),background var(--t),border-color var(--t);
}
.site-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:var(--sh-sm);border-bottom-color:var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;box-shadow:var(--sh-sm);flex-shrink:0;
}
.brand-mark svg{width:22px;height:22px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:1.2px}

.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-xs);
  font-size:15px;color:var(--body);white-space:nowrap;transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:var(--r-pill);background:var(--grad);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}

/* Mega 面板 */
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:var(--r-xs);
  font-size:15px;color:var(--body);transition:color var(--t),background var(--t);
}
.mega-trigger .caret{transition:transform var(--t)}
.mega-trigger:hover,.mega-wrap:focus-within .mega-trigger{color:var(--brand);background:var(--brand-soft)}
.mega-wrap:hover .mega-trigger .caret,.mega-wrap:focus-within .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:860px;padding:28px;
  background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--sh-lg);
  display:grid;grid-template-columns:1fr 1fr 250px;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mega-panel::before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;font-weight:700;color:var(--muted);letter-spacing:1.4px;margin-bottom:14px}
.mega-list li{margin-bottom:4px}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:var(--r-xs);
  font-size:14px;color:var(--body);transition:background var(--t),color var(--t);
}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0}
.dot.alt{background:var(--accent)}
.dot.third{background:var(--indigo)}
.mega-card{
  display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:var(--r-md);
  background:var(--sub);border:1px solid var(--border);transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.mega-card:hover{border-color:var(--border-hover);box-shadow:var(--sh-md);transform:translateY(-2px)}
.mega-card img{width:100%;height:96px;object-fit:cover;border-radius:var(--r-sm)}
.mega-card h4{font-size:15px;color:var(--text);font-weight:600;line-height:1.5}
.mega-card p{font-size:12.5px;color:var(--muted);line-height:1.7}
.mega-card .go{font-size:13px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:4px}

/* 移动端抽屉 */
.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-xs);border:1px solid var(--border);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--t),opacity var(--t)}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  overflow:hidden;max-height:0;transition:max-height 240ms var(--ease);
  border-top:1px solid transparent;background:#fff;
}
.mobile-panel.is-open{max-height:640px;border-top-color:var(--border)}
.mobile-inner{padding:14px 0 24px}
.mobile-link{
  display:block;padding:13px 4px;font-size:15px;color:var(--body);
  border-bottom:1px solid var(--border);transition:color var(--t),padding-left var(--t);
}
.mobile-link:hover{color:var(--brand);padding-left:8px}
.mobile-link.is-active{color:var(--brand);font-weight:600}
.mobile-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;background:var(--bg)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(14,158,130,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(14,158,130,.055) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(ellipse 80% 70% at 30% 40%,#000 0%,transparent 72%);
  mask-image:radial-gradient(ellipse 80% 70% at 30% 40%,#000 0%,transparent 72%);
}
.hero::after{
  content:"";position:absolute;top:-160px;right:-180px;width:620px;height:620px;
  border-radius:50%;background:var(--grad-soft);filter:blur(10px);pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.32fr 1fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border-hover);color:var(--brand-deep);
  font-size:13px;font-weight:600;box-shadow:var(--sh-sm);
}
.hero-eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block}
.hero h1{
  margin-top:22px;font-size:46px;line-height:1.28;color:var(--text);font-weight:700;letter-spacing:-.4px;
}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--body);max-width:520px}
.hero-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px}

.hero-media{position:relative}
.hero-media .shot{
  width:100%;height:430px;object-fit:cover;border-radius:var(--r-hero);
  box-shadow:var(--sh-lg);background:var(--sub);
}
.stat-float{
  position:absolute;background:#fff;border:1px solid var(--brand);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-md);min-width:158px;
  transition:transform var(--t),box-shadow var(--t);
}
.stat-float:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.stat-float .v{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--text);line-height:1.2}
.stat-float .v small{font-size:14px;color:var(--brand);margin-left:3px;font-weight:600}
.stat-float .k{font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.5}
.stat-float.one{top:-20px;left:-20px}
.stat-float.two{bottom:-20px;right:-20px;border-color:var(--accent)}
.stat-float.two .v small{color:var(--accent)}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section-alt{background:var(--sub)}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:44px;
}
.sec-label{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1.6px;
}
.sec-head h2{margin-top:12px;font-size:33px;line-height:1.35;color:var(--text);font-weight:700;letter-spacing:-.3px}
.sec-rule{width:45px;height:4px;border-radius:var(--r-pill);background:var(--grad);margin-top:16px}
.sec-desc{max-width:430px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ============ 指标看板 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:28px;min-height:172px;box-shadow:var(--sh-sm);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--border-hover)}
.metric-icon{position:absolute;top:24px;right:24px;width:34px;height:34px;border-radius:11px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand)}
.metric-icon svg{width:17px;height:17px}
.metric-num{
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:42px;font-weight:700;line-height:1.1;color:var(--text);
  transition:transform var(--t);
}
.metric:hover .metric-num{transform:translateY(-2px)}
.metric-num small{font-size:18px;color:var(--brand);margin-left:4px;font-weight:600}
.metric-label{margin-top:14px;font-size:15px;font-weight:600;color:var(--text)}
.metric-note{margin-top:6px;font-size:12px;line-height:1.6;color:var(--muted);margin-top:auto}

/* ============ 服务矩阵 ============ */
.matrix-row{display:grid;gap:24px}
.matrix-row + .matrix-row{margin-top:24px}
.matrix-row-a{grid-template-columns:3fr 2fr;align-items:stretch}
.matrix-row-b{grid-template-columns:repeat(3,1fr)}
.matrix-row-b > *:nth-child(2){margin-top:26px}
.card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-md);padding:26px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--border-hover)}
.card-lg{border-radius:var(--r-lg);padding:32px}
.card-feature{display:grid;grid-template-columns:1fr 210px;gap:30px;align-items:center}
.card-title{font-size:20px;font-weight:700;color:var(--text);line-height:1.5}
.card-text{margin-top:12px;font-size:14.5px;line-height:1.85;color:var(--body)}
.card-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.card-ico{width:44px;height:44px;border-radius:14px;background:var(--brand-soft);display:grid;place-items:center;color:var(--brand);margin-bottom:18px}
.card-ico svg{width:22px;height:22px}
.card-ico.orange{background:var(--accent-soft);color:var(--accent)}
.card-ico.purple{background:#EEEEFB;color:var(--indigo)}
.card-img{width:100%;height:200px;object-fit:cover;border-radius:var(--r-md)}
.card-foot{margin-top:22px;padding-top:16px;border-top:1px solid var(--border);display:flex;justify-content:flex-end}
.card-sm .card-title{font-size:17px}
.card-sm .card-text{font-size:14px}

/* ============ 深色对比板块 ============ */
.dark-section{background:var(--ink);padding:96px 0;position:relative;overflow:hidden}
.dark-section::after{
  content:"";position:absolute;left:-140px;bottom:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,158,130,.28),transparent 70%);pointer-events:none;
}
.dark-section .sec-label{color:#5FD3B4}
.dark-section h2{color:#fff}
.dark-section .sec-desc{color:#9FB3AE}
.dark-inner{position:relative;z-index:2}
.compare-row{margin-bottom:30px}
.compare-row:last-of-type{margin-bottom:0}
.compare-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:10px}
.compare-head .name{font-size:15px;color:#E3EDEA;font-weight:600}
.compare-head .val{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;color:#5FD3B4;font-weight:600}
.compare-track{height:10px;border-radius:var(--r-pill);background:rgba(255,255,255,.13);overflow:hidden}
.compare-fill{height:100%;border-radius:var(--r-pill);background:var(--grad);transition:width 900ms var(--ease)}
.compare-note{font-size:12px;color:#8CA29D;margin-top:8px}
.compare-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:54px}
.compare-card{
  border-radius:var(--r-lg);padding:30px;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);
}
.compare-card h3{font-size:18px;color:#fff;font-weight:700}
.compare-card.hl{background:#fff;border:none;border-left:4px solid var(--brand);box-shadow:var(--sh-lg)}
.compare-card.hl h3{color:var(--text)}
.compare-list{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.compare-list li{font-size:14px;line-height:1.8;color:#B9CBC7;display:flex;gap:10px;align-items:flex-start}
.compare-card.hl .compare-list li{color:var(--body)}
.tick{width:18px;height:18px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);display:grid;place-items:center;flex-shrink:0;font-size:11px;font-weight:700;margin-top:5px}
.tick.grey{background:rgba(255,255,255,.12);color:#9FB3AE}
.compare-card.hl .tick{background:var(--brand-soft);color:var(--brand-deep)}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--border-hover)}
.news-thumb{position:relative;aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;background:var(--sub)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-title{
  font-size:18px;font-weight:600;color:var(--text);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand-deep)}
.news-desc{
  font-size:14px;line-height:1.8;color:var(--body);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.news-foot .arw{transition:transform var(--t);color:var(--brand);font-size:16px}
.news-card:hover .news-foot .arw{transform:translateX(4px)}
.news-badges{display:flex;flex-wrap:wrap;gap:8px;align-items:center}

.empty-state{
  border:1px dashed var(--border-hover);border-radius:20px;background:#fff;
  padding:60px 24px;text-align:center;grid-column:1/-1;
}
.empty-state .ico{
  width:56px;height:56px;border-radius:18px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin:0 auto 18px;
}
.empty-state .ico svg{width:26px;height:26px}
.empty-state p{font-size:15px;color:var(--body);margin-bottom:16px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:2fr 3fr;gap:48px;align-items:start}
.faq-aside h2{font-size:32px;line-height:1.36;color:var(--text);font-weight:700;margin-top:12px}
.faq-aside p{margin-top:16px;font-size:15px;line-height:1.9;color:var(--body)}
.faq-aside .side-card{
  margin-top:26px;padding:24px;border-radius:var(--r-lg);background:#fff;
  border:1px solid var(--border);box-shadow:var(--sh-sm);
}
.faq-aside .side-card strong{display:block;font-size:15px;color:var(--text);margin-bottom:6px}
.faq-aside .side-card span{font-size:13px;color:var(--muted);display:block;margin-bottom:16px;line-height:1.7}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.faq-item:hover{border-color:var(--border-hover);box-shadow:var(--sh-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;padding:17px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--sub);color:var(--brand);
  display:grid;place-items:center;font-size:12px;transition:transform var(--t),background var(--t);
}
.faq-item[open]{background:var(--brand-soft);border-color:var(--border-hover);box-shadow:inset 3px 0 0 var(--brand)}
.faq-item[open] summary .chev{transform:rotate(180deg);background:#fff}
.faq-body{padding:0 22px 20px;font-size:14.5px;line-height:1.9;color:var(--body)}

/* ============ 转化表单 ============ */
.form-card{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:40px;box-shadow:var(--sh-md);
}
.form-intro h2{margin-top:12px;font-size:30px;line-height:1.38;color:var(--text);font-weight:700}
.form-intro p{margin-top:16px;font-size:15px;line-height:1.9;color:var(--body)}
.form-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.form-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--body);line-height:1.8}
.point-dot{
  width:20px;height:20px;border-radius:7px;background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:11px;font-weight:700;flex-shrink:0;margin-top:4px;
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600;color:var(--text)}
.field label .req{color:var(--accent);margin-left:3px}
.input{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--border);border-radius:var(--r-sm);
  background:#fff;font-size:15px;color:var(--text);transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.input::placeholder{color:#A9B7B3}
.input:hover{border-color:var(--border-hover)}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(14,158,130,.18);background:var(--brand-soft)}
textarea.input{height:auto;min-height:132px;padding:14px 16px;line-height:1.75;resize:vertical}
select.input{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  position:relative;display:inline-flex;align-items:center;padding:10px 18px;
  border:1px solid var(--border);border-radius:var(--r-pill);background:#fff;
  font-size:14px;color:var(--body);cursor:pointer;
  transition:border-color var(--t),background var(--t),color var(--t),transform var(--t);
}
.chip:hover{border-color:var(--border-hover);color:var(--brand)}
.chip input{position:absolute;opacity:0;width:0;height:0}
.chip.is-active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);font-weight:600}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--body);line-height:1.7}
.agree input{width:18px;height:18px;margin-top:4px;accent-color:var(--brand);flex-shrink:0}
.form-msg{margin-top:16px;border-radius:var(--r-sm);padding:12px 16px;font-size:14px;display:none}
.form-msg.ok{display:block;background:var(--brand-soft);color:var(--brand-deep);border:1px solid var(--border-hover)}
.form-msg.err{display:block;background:#FDECEC;color:#B3382F;border:1px solid #F6CFCC}
.err-tip{font-size:12px;color:#C0392B;display:none}
.field.has-error .input{border-color:#E08A82;background:#FFF7F6}
.field.has-error .err-tip{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C9D6D2;padding:76px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.25fr;gap:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:12px}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700}
.footer-grid p{font-size:13.5px;line-height:1.9;color:#9FB3AE;max-width:330px}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:18px;letter-spacing:.6px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:13.5px;color:#C9D6D2;position:relative;transition:color var(--t)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--brand);text-decoration-thickness:2px;text-underline-offset:4px}
.footer-contact li{font-size:13.5px;color:#C9D6D2;line-height:1.9;display:flex;gap:10px;margin-bottom:12px}
.footer-contact .k{color:#7E938E;flex-shrink:0}
.footer-bottom{
  margin-top:60px;border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:#8CA29D;margin:0}
.to-top{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#C9D6D2;
  padding:9px 16px;border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.to-top:hover{background:rgba(255,255,255,.08);color:#fff;border-color:var(--brand);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .mega-panel{width:760px}
}
@media (max-width:1199px){
  .hero{padding:72px 0 84px}
  .hero-grid{grid-template-columns:1.2fr 1fr;gap:40px}
  .hero h1{font-size:40px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:36px}
  .footer-grid .footer-col:last-child{grid-column:1/-1}
  .mega-panel{display:none}
}
@media (max-width:1079px){
  .nav-menu{display:none}
  .hamburger{display:inline-flex}
  .nav-actions .btn-nav-cta{display:none}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .dark-section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero-media .shot{height:340px}
  .stat-float.one{top:-14px;left:0}
  .stat-float.two{bottom:-14px;right:0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:18px}
  .sec-desc{max-width:100%}
  .matrix-row-a{grid-template-columns:1fr}
  .card-feature{grid-template-columns:1fr}
  .card-img{height:220px}
  .matrix-row-b{grid-template-columns:1fr 1fr}
  .matrix-row-b > *:nth-child(2){margin-top:0}
  .news-grid{grid-template-columns:1fr 1fr}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .form-card{grid-template-columns:1fr;gap:32px;padding:30px}
  .compare-cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-grid .footer-col:last-child{grid-column:auto}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav{height:64px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:10px}
  .hero{padding:48px 0 60px}
  .hero h1{font-size:30px;line-height:1.34}
  .hero-sub{font-size:15.5px}
  .hero-media .shot{height:250px;border-radius:20px}
  .stat-float{padding:11px 14px;min-width:132px;border-radius:14px}
  .stat-float .v{font-size:21px}
  .stat-float.one{top:-12px;left:0}
  .stat-float.two{bottom:-12px;right:0}
  .section{padding:56px 0}
  .dark-section{padding:56px 0}
  .sec-head h2{font-size:25px}
  .sec-head{margin-bottom:32px}
  .metrics{grid-template-columns:1fr;gap:16px}
  .metric{padding:22px;min-height:auto;border-radius:var(--r-md)}
  .metric-num{font-size:36px}
  .matrix-row-b{grid-template-columns:1fr}
  .matrix-row-a{gap:16px}
  .card{padding:22px;border-radius:var(--r-md)}
  .card-lg{border-radius:var(--r-md);padding:24px}
  .news-grid{grid-template-columns:1fr;gap:16px}
  .form-card{padding:24px 20px;border-radius:var(--r-md)}
  .form-grid{grid-template-columns:1fr}
  .form-intro h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .compare-card{padding:22px;border-radius:var(--r-md)}
  .btn{min-height:44px;padding:13px 22px;font-size:15px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
  .card:hover,.metric:hover,.news-card:hover,.btn:hover,.stat-float:hover{transform:none !important}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E9E82;
  --c-primary-dark:#0A7A66;
  --c-primary-soft:#E6F6F1;
  --c-accent:#F2814A;
  --c-accent-soft:#FDEDE4;
  --c-ink:#10231F;
  --c-title:#0F1F1C;
  --c-body:#41524E;
  --c-muted:#7C8C88;
  --c-third:#5B5BD6;
  --bg-page:#F7F9F8;
  --bg-card:#FFFFFF;
  --bg-band:#EEF4F2;
  --line:#E3EAE7;
  --line-hover:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --r-pill:999px;
  --r-btn:12px;
  --r-card:16px;
  --r-card-lg:24px;
  --r-hero:28px;
  --r-img:16px;
  --shadow-sm:0 1px 2px rgba(16,35,31,.06);
  --shadow-md:0 8px 24px rgba(16,35,31,.08);
  --shadow-lg:0 20px 48px rgba(16,35,31,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --dur:220ms;
  --ctr:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-page);
  color:var(--c-body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px}
button{font-family:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-title);font-weight:700;line-height:1.35}
p{margin:0}
.num{font-family:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--ctr);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.band{background:var(--bg-band)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);background:rgba(255,255,255,.92)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.brand-mark svg{width:20px;height:20px}
.brand-name{display:block;font-size:17px;font-weight:700;color:var(--c-title);letter-spacing:.2px}
.brand-sub{display:block;font-size:11px;letter-spacing:1.6px;color:var(--c-muted);line-height:1.4}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:10px}
.nav-link{display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;font-size:15px;color:var(--c-body);position:relative;transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}
.nav-link:hover{color:var(--c-primary-dark);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary-dark);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--grad)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-primary[disabled]{opacity:.45;transform:none;box-shadow:var(--shadow-sm);cursor:not-allowed}
.btn-ghost{background:#fff;border-color:var(--c-primary);color:var(--c-primary-dark)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:var(--c-primary-soft)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-dark);font-weight:600;font-size:15px}
.btn-link .arw{transition:transform var(--dur) var(--ease)}
.btn-link:hover .arw{transform:translateX(4px)}

.mega-wrap{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 12px;border-radius:10px;background:transparent;border:1px solid transparent;color:var(--c-body);font-size:15px;transition:color var(--dur) var(--ease),background var(--dur) var(--ease)}
.mega-trigger .caret{font-size:12px;transition:transform var(--dur) var(--ease)}
.mega-wrap:hover .mega-trigger,.mega-wrap:focus-within .mega-trigger{color:var(--c-primary-dark);background:var(--c-primary-soft)}
.mega-wrap:hover .mega-trigger .caret,.mega-wrap:focus-within .mega-trigger .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:860px;
  display:grid;grid-template-columns:1fr 1fr 300px;gap:24px;padding:28px;
  background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.mega-panel::before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:.6px;margin-bottom:12px}
.mega-list li+li{margin-top:6px}
.mega-list a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;font-size:14.5px;color:var(--c-body);transition:background var(--dur) var(--ease),color var(--dur) var(--ease)}
.mega-list a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);flex:none}
.dot.alt{background:var(--c-accent)}
.dot.third{background:var(--c-third)}
.mega-card{border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.mega-card:hover{box-shadow:var(--shadow-md);border-color:var(--line-hover)}
.mega-card img{width:100%;height:120px;object-fit:cover}
.mega-card .mc-body{padding:14px 16px 16px}
.mega-card h4{font-size:15px;margin-bottom:6px}
.mega-card p{font-size:13px;color:var(--c-muted);line-height:1.6}
.mega-card .mc-go{margin-top:10px;font-size:13px;color:var(--c-primary-dark);font-weight:600}

.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{display:none;border-top:1px solid var(--line);background:#fff;overflow:hidden;max-height:0;transition:max-height 240ms var(--ease)}
.drawer.is-open{max-height:520px}
.drawer-inner{padding:16px 0 24px;display:grid;gap:6px}
.drawer a{display:block;padding:12px 4px;font-size:16px;border-radius:10px;color:var(--c-body)}
.drawer a.is-active{color:var(--c-primary-dark);font-weight:700;background:var(--c-primary-soft);padding-left:12px}
.drawer .drawer-cta{margin-top:12px}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  background-image:linear-gradient(120deg,rgba(16,35,31,.86) 0%,rgba(14,158,130,.78) 48%,rgba(242,129,74,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  color:#fff;
}
.cat-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;padding:52px 48px;min-height:300px}
.cat-hero h1{font-size:38px;color:#fff;letter-spacing:.4px}
.cat-hero p{color:rgba(255,255,255,.88);font-size:16px;max-width:640px;margin-top:14px;line-height:1.9}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.9)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.7}
.crumb .cur{color:rgba(255,255,255,.62)}
.hero-badge{
  background:rgba(255,255,255,.96);border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);background-origin:border-box;background-clip:padding-box,border-box;
  border-radius:16px;padding:20px 22px;min-width:210px;color:var(--c-title);box-shadow:var(--shadow-lg)
}
.hero-badge .hb-num{font-size:38px;font-weight:700;color:var(--c-primary-dark);line-height:1.1}
.hero-badge .hb-label{font-size:13px;color:var(--c-body);margin-top:6px}
.hero-badge .hb-note{font-size:12px;color:var(--c-muted);margin-top:4px}

/* ---------- metrics strip ---------- */
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:-38px;position:relative;z-index:5}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-hover)}
.metric-card .m-num{font-size:38px;font-weight:700;color:var(--c-primary-dark);line-height:1.15;transition:transform var(--dur) var(--ease)}
.metric-card:hover .m-num{transform:translateY(-2px)}
.metric-card .m-label{font-size:13px;color:var(--c-body);margin-top:6px}
.metric-card .m-note{font-size:12px;color:var(--c-muted);margin-top:2px}

/* ---------- section head ---------- */
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:end;margin-bottom:38px}
.sec-tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:13px;font-weight:600;margin-bottom:14px}
.sec-head h2{font-size:32px}
.sec-rule{width:45px;height:4px;border-radius:4px;background:var(--grad);margin-top:16px}
.sec-desc{font-size:15px;color:var(--c-muted);max-width:420px;text-align:right}

/* ---------- service list ---------- */
.svc-list{display:grid;gap:24px}
.svc-row{
  display:grid;grid-template-columns:minmax(0,40%) minmax(0,60%);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.svc-row:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-hover)}
.svc-media{position:relative;min-height:230px;overflow:hidden;background:var(--c-primary-soft)}
.svc-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;transition:transform 420ms var(--ease)}
.svc-row:hover .svc-media img{transform:scale(1.04)}
.svc-media .fallback{position:absolute;inset:0;display:none;place-items:center;background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:30px;font-weight:700}
.svc-body{padding:28px 30px;display:flex;flex-direction:column;gap:12px}
.svc-index{font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:1px}
.svc-body h3{font-size:22px}
.svc-body p{font-size:15px;color:var(--c-body);line-height:1.85}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary-dark);font-size:13px}
.tag--accent{background:var(--c-accent-soft);color:#B8552A}
.tag--plain{background:#F2F6F5;color:var(--c-body)}
.svc-body .btn-link{margin-top:auto;padding-top:6px}

/* ---------- guarantee ---------- */
.guard-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.guard-card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:32px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-hover)}
.guard-icon{width:48px;height:48px;border-radius:14px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:20px;font-weight:700;margin-bottom:20px}
.guard-card h3{font-size:20px;margin-bottom:12px}
.guard-card p{font-size:15px;line-height:1.85}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-body)}
.check-list li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-primary);margin-top:10px;flex:none}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cross-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-hover)}
.cross-card img{width:100%;height:150px;object-fit:cover}
.cross-card .cc-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.cross-card h3{font-size:18px}
.cross-card p{font-size:14px;color:var(--c-body);line-height:1.8}
.cross-card .cc-go{margin-top:auto;font-size:14px;color:var(--c-primary-dark);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.cross-card:hover .cc-go .arw{transform:translateX(4px)}
.cc-go .arw{transition:transform var(--dur) var(--ease)}

/* ---------- CTA ---------- */
.cta-band{background:var(--grad);border-radius:24px;padding:40px 48px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;color:#fff;box-shadow:var(--shadow-md)}
.cta-band h2{color:#fff;font-size:26px}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;margin-top:10px;max-width:640px}
.btn-on-grad{background:#fff;color:var(--c-primary-dark)}
.btn-on-grad:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-on-grad:active{transform:translateY(0)}
.btn-outline-white{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#C9D6D2;padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-col p{font-size:14px;line-height:1.9;color:#AEBDBA;max-width:340px}
.footer-col ul li+li{margin-top:10px}
.footer-col ul a{font-size:14px;color:#C9D6D2;position:relative;transition:color var(--dur) var(--ease)}
.footer-col ul a:hover{color:#fff}
.footer-col ul a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;background:var(--c-primary);border-radius:2px}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.8}
.footer-contact .k{color:#fff;flex:none;font-weight:600}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;font-size:13px;color:#93A5A1}
.to-top{color:#C9D6D2;transition:color var(--dur) var(--ease)}
.to-top:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1439px){
  .container{max-width:1200px}
}
@media (max-width:1199px){
  .nav-menu,.mega-wrap{display:none}
  .nav-toggle{display:flex}
  .drawer{display:block}
  .cat-hero-inner{grid-template-columns:1fr;padding:40px 32px}
  .metric-strip{grid-template-columns:1fr 1fr;margin-top:24px}
  .svc-row{grid-template-columns:1fr}
  .svc-media{min-height:200px}
  .guard-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .section{padding:72px 0}
  .sec-head{grid-template-columns:1fr;align-items:start}
  .sec-desc{text-align:left}
  .cat-hero h1{font-size:30px}
  .cross-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .cat-hero{border-radius:20px}
  .cat-hero-inner{padding:32px 22px;min-height:auto}
  .cat-hero h1{font-size:26px}
  .metric-strip{grid-template-columns:1fr}
  .metric-card .m-num{font-size:30px}
  .svc-body{padding:22px}
  .svc-body h3{font-size:19px}
  .sec-head h2{font-size:24px}
  .nav-actions .btn{padding:0 16px;font-size:14px}
  .footer-grid{grid-template-columns:1fr}
  .cross-card img{height:150px}
  .btn{min-height:44px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .svc-row:hover,.metric-card:hover,.cross-card:hover,.guard-card:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand:#0E9E82;
  --brand-deep:#0A7A66;
  --brand-soft:#E6F6F1;
  --accent:#F2814A;
  --accent-soft:#FDEDE4;
  --third:#5B5BD6;
  --ink:#10231F;
  --bg:#F7F9F8;
  --surface:#FFFFFF;
  --surface-2:#EEF4F2;
  --text:#0F1F1C;
  --text-2:#41524E;
  --text-3:#7C8C88;
  --border:#E3EAE7;
  --border-hover:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --r-pill:999px;
  --r-btn:12px;
  --r:16px;
  --r-lg:24px;
  --r-hero:28px;
  --sh-sm:0 1px 2px rgba(16,35,31,.06);
  --sh-md:0 8px 24px rgba(16,35,31,.08);
  --sh-lg:0 20px 48px rgba(16,35,31,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:220ms var(--ease);
  --container:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-deep);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.35;font-weight:750;letter-spacing:.2px}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.mono{font-family:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,249,248,.92);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:var(--sh-sm)}
.nav{display:flex;align-items:center;gap:24px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background:var(--grad);
  display:grid;place-items:center;box-shadow:var(--sh-sm);
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;color:var(--text);letter-spacing:.4px}
.brand-sub{font-size:10px;letter-spacing:2px;color:var(--text-3)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:10px;font-size:15px;color:var(--text-2);font-weight:600;
  position:relative;transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand-deep)}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.mega-wrap{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;
  border-radius:10px;font-size:15px;font-weight:600;color:var(--text-2);
  transition:color var(--t),background var(--t);
}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--brand-deep);background:var(--brand-soft)}
.mega-trigger .caret{font-size:11px;transition:transform var(--t)}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:860px;max-width:88vw;
  background:var(--surface);border:1px solid var(--border);border-radius:20px;
  box-shadow:var(--sh-lg);padding:28px;
  display:grid;grid-template-columns:1fr 1fr 300px;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mega-panel::before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{
  font-size:12px;font-weight:800;letter-spacing:1.6px;color:var(--text-3);
  text-transform:uppercase;margin-bottom:12px;
}
.mega-list li{margin-bottom:4px}
.mega-list a{
  display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text-2);font-weight:600;transition:background var(--t),color var(--t);
}
.mega-list a:hover{background:var(--surface-2);color:var(--brand-deep)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto}
.dot.alt{background:var(--accent)}
.dot.third{background:var(--third)}
.mega-card{
  display:flex;flex-direction:column;gap:12px;padding:16px;border-radius:16px;
  border:1px solid var(--border);background:var(--surface-2);
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.mega-card:hover{border-color:var(--border-hover);box-shadow:var(--sh-md);transform:translateY(-4px)}
.mega-card-img{position:relative;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft)}
.mega-card-img img{width:100%;height:100%;object-fit:cover}
.mega-card-body{display:flex;flex-direction:column;gap:4px}
.mega-card-tag{font-size:12px;font-weight:700;color:var(--accent)}
.mega-card-body strong{font-size:15px;color:var(--text)}
.mega-card-body span{font-size:13px;color:var(--text-3);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform var(--t);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:16px;font-weight:700;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-md)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--brand-deep);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-md)}
.btn-ghost:active{transform:translateY(0)}
.btn-line{background:transparent;color:var(--text-2);border:1px solid var(--border)}
.btn-line:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:700;white-space:nowrap;
}
.badge-cat{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#C25A25}
.badge-soft{background:var(--surface-2);color:var(--text-2)}

/* ============ 阅读进度 ============ */
.read-progress{
  position:fixed;top:var(--nav-h);left:0;right:0;height:3px;z-index:59;
  background:transparent;pointer-events:none;
}
.read-progress i{
  display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;
  background:var(--grad);transition:transform 120ms linear;
}

/* ============ 文章顶部头图 ============ */
.article-hero{
  position:relative;padding:44px 0 0;background:
    radial-gradient(900px 280px at 12% -10%, rgba(14,158,130,.10), transparent 70%),
    linear-gradient(180deg,#FFFFFF 0%, var(--bg) 100%);
}
.page-banner{
  position:relative;overflow:hidden;border-radius:var(--r-hero);
  min-height:200px;display:flex;align-items:flex-end;
  background-image:linear-gradient(120deg,rgba(14,158,130,.92) 0%,rgba(10,122,102,.86) 45%,rgba(242,129,74,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:30px 32px;box-shadow:var(--sh-md);
}
.page-banner .banner-inner{position:relative;z-index:2;max-width:760px}
.page-banner .crumb-light{color:rgba(255,255,255,.82)}
.page-banner .crumb-light a{color:rgba(255,255,255,.92)}
.page-banner .crumb-light a:hover{color:#fff}
.page-banner h1{
  color:#fff;font-size:34px;line-height:1.3;margin-top:10px;text-shadow:0 2px 16px rgba(16,35,31,.28);
}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb a{color:var(--text-2);font-weight:600}
.crumb a:hover{color:var(--brand-deep)}
.crumb .sep{color:var(--text-3)}
.crumb .cur{color:var(--text-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章布局 ============ */
.article-section{padding:40px 0 88px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:40px;align-items:start}
.article-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:36px 40px 40px;box-shadow:var(--sh-sm);
}
.article-head{margin-bottom:24px}
.article-head .badge{margin-bottom:14px}
.meta-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--text-3);padding-bottom:20px;border-bottom:1px dashed var(--border);
}
.meta-line .vline{width:1px;height:12px;background:var(--border)}
.meta-line .date{font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;color:var(--text-2)}

/* ============ 正文排版 ============ */
.article-body{max-width:820px;font-size:16px;line-height:1.9;color:var(--text-2)}
.article-body>*+*{margin-top:18px}
.article-body h2{
  position:relative;margin-top:44px;font-size:24px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{margin-top:32px;font-size:19px;color:var(--brand-deep)}
.article-body p{line-height:1.9}
.article-body strong{color:var(--text);font-weight:800}
.article-body a{color:var(--brand-deep);border-bottom:1px solid var(--border-hover)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.article-body ul,.article-body ol{padding-left:4px;display:flex;flex-direction:column;gap:10px}
.article-body ul li{position:relative;padding-left:22px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--brand);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:36px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;width:24px;height:24px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);font-size:13px;font-weight:800;
  display:grid;place-items:center;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 14px 14px 0;color:var(--text);
}
.article-body img{border-radius:var(--r);margin:24px auto;box-shadow:var(--sh-sm)}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:14px;margin:24px 0;border-radius:var(--r);overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left}
.article-body th{background:var(--surface-2);color:var(--text);font-weight:700}
.article-body code{
  background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:14px;
  font-family:ui-monospace,Menlo,Consolas,monospace;color:var(--brand-deep);
}
.article-body hr{border:0;height:1px;background:var(--border);margin:32px 0}
.empty-article{
  text-align:center;padding:56px 24px;border:1px dashed var(--border-hover);
  border-radius:20px;background:var(--surface-2);
}
.empty-article .empty-mark{
  width:64px;height:64px;border-radius:20px;background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:26px;font-weight:800;margin:0 auto 16px;
}
.empty-article h2{font-size:22px;margin-bottom:10px}
.empty-article p{max-width:460px;margin:0 auto 22px;font-size:15px;color:var(--text-3)}

/* ============ 侧栏 ============ */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:calc(var(--nav-h) + 20px)}
.side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:20px;box-shadow:var(--sh-sm);
}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:var(--text);
  margin-bottom:14px;letter-spacing:.4px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:3px;background:var(--grad)}
.toc-list a{
  display:block;font-size:14px;color:var(--text-2);padding:8px 10px;border-radius:10px;
  border-left:3px solid transparent;line-height:1.6;transition:all var(--t);
}
.toc-list a:hover{background:var(--surface-2);color:var(--brand-deep)}
.toc-list a.is-current{color:var(--brand-deep);border-left-color:var(--brand);background:var(--brand-soft);font-weight:700}
.side-empty{font-size:13px;color:var(--text-3)}
.rec-list{display:flex;flex-direction:column;gap:14px}
.rec-item{display:flex;gap:12px;align-items:flex-start}
.rec-thumb{position:relative;width:80px;height:80px;flex:0 0 auto;border-radius:12px;overflow:hidden;background:var(--brand-soft)}
.rec-thumb img{width:100%;height:100%;object-fit:cover}
.rec-thumb.img-fail::before{
  content:attr(data-fb);position:absolute;inset:0;display:grid;place-items:center;
  color:var(--brand-deep);font-size:24px;font-weight:800;
}
.rec-body{min-width:0}
.rec-body a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14px;font-weight:700;color:var(--text);line-height:1.55;
}
.rec-body a:hover{color:var(--brand-deep)}
.rec-body span{display:block;font-size:12px;color:var(--text-3);margin-top:6px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--text-2);font-size:13px;font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t);
}
.tag:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.side-links{display:flex;flex-direction:column;gap:10px}
.side-links .btn{width:100%}

/* ============ 文末区块 ============ */
.article-foot{margin-top:48px;display:flex;flex-direction:column;gap:36px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}
.block-head .tagline{font-size:13px;font-weight:800;letter-spacing:1.8px;color:var(--brand);text-transform:uppercase}
.block-head h2{font-size:28px;margin-top:6px}
.block-head .bar{width:45px;height:4px;border-radius:4px;background:var(--grad);margin-top:12px}
.block-head p{font-size:14px;color:var(--text-3);max-width:420px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--border-hover)}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb.img-fail::before{
  content:attr(data-fb);position:absolute;inset:0;display:grid;place-items:center;
  color:var(--brand-deep);font-size:34px;font-weight:800;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{
  font-size:17px;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body h3 a{color:var(--text)}
.post-body h3 a:hover{color:var(--brand-deep)}
.post-body p{
  font-size:14px;color:var(--text-3);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-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(--text-3);padding-top:12px;border-top:1px solid var(--border);
}
.post-foot .arrow{color:var(--brand);font-weight:800;transition:transform var(--t)}
.post-card:hover .post-foot .arrow{transform:translateX(4px)}

.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:20px 22px;border-radius:var(--r);
  background:var(--surface);border:1px solid var(--border);box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--border-hover)}
.pn-card .k{font-size:12px;font-weight:800;color:var(--text-3);letter-spacing:1px}
.pn-card .t{
  font-size:15px;font-weight:700;color:var(--text);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pn-card.next{text-align:right;align-items:flex-end}

.author-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--brand-soft);border:1px solid var(--border-hover);
  border-radius:var(--r-lg);padding:28px 30px;
}
.author-bar h3{font-size:19px;margin-bottom:8px}
.author-bar p{font-size:14px;color:var(--text-2);max-width:560px}

/* ============ CTA ============ */
.cta-band{
  margin:0 0 88px;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--grad);border-radius:var(--r-lg);padding:36px 40px;box-shadow:var(--sh-md);
}
.cta-inner h2{color:#fff;font-size:26px}
.cta-inner p{color:rgba(255,255,255,.9);font-size:14px;margin-top:8px;max-width:520px}
.cta-inner .btn{background:#fff;color:var(--brand-deep);box-shadow:var(--sh-md)}
.cta-inner .btn:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:var(--sh-lg)}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#C9D6D2;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-col p{font-size:14px;line-height:1.85;color:#9FB2AD;max-width:340px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  font-size:14px;color:#C9D6D2;border-bottom:2px solid transparent;padding-bottom:2px;
  transition:color var(--t),border-color var(--t);
}
.footer-col ul a:hover{color:#fff;border-bottom-color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#9FB2AD;line-height:1.7}
.footer-contact .k{color:#fff;font-weight:700;flex:0 0 64px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3A0;
}
.footer-bottom a{color:#C9D6D2}
.footer-bottom a:hover{color:#fff}
.to-top{display:inline-flex;align-items:center;gap:6px}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;z-index:58;background:rgba(247,249,248,.98);
  padding:20px 24px 40px;overflow-y:auto;transform:translateY(-12px);
  opacity:0;visibility:hidden;transition:opacity 240ms var(--ease),transform 240ms var(--ease),visibility 240ms;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer ul{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.drawer a{
  display:block;padding:14px 16px;border-radius:12px;background:var(--surface);
  border:1px solid var(--border);font-size:16px;font-weight:700;color:var(--text);
}
.drawer a:hover{border-color:var(--border-hover);color:var(--brand-deep)}
.drawer .drawer-label{
  font-size:12px;font-weight:800;letter-spacing:1.6px;color:var(--text-3);
  text-transform:uppercase;margin:8px 0 12px;
}
.drawer .btn{width:100%;margin-top:8px}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  :root{--container:1280px}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:1fr}
  .side{position:static}
  .article-body{max-width:100%}
  .nav-menu{display:none}
  .nav-toggle{display:grid}
  .mega-wrap{display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  .page-banner{padding:26px 24px;min-height:180px}
  .page-banner h1{font-size:28px}
  .article-card{padding:28px 24px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-inner{padding:28px 24px}
  .cta-inner h2{font-size:22px}
  .block-head h2{font-size:24px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  :root{--nav-h:64px}
  body{font-size:15px}
  .brand-sub{display:none}
  .nav-actions .btn{display:none}
  .page-banner{min-height:160px;border-radius:20px}
  .page-banner h1{font-size:24px}
  .article-section{padding:28px 0 64px}
  .card-grid{grid-template-columns:1fr}
  .prevnext{grid-template-columns:1fr}
  .pn-card.next{text-align:left;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .author-bar{padding:22px 20px}
  .cta-band{margin-bottom:64px}
  .article-body h2{font-size:21px}
  .side{position:static}
  .crumb .cur{max-width:200px}
}

/* roulang page: category3 */
:root{
  --brand:#0E9E82;
  --brand-deep:#0A7A66;
  --brand-soft:#E6F6F1;
  --accent:#F2814A;
  --accent-soft:#FDEDE4;
  --ink:#10231F;
  --third:#5B5BD6;
  --title:#0F1F1C;
  --text:#41524E;
  --muted:#7C8C88;
  --bg:#F7F9F8;
  --card:#FFFFFF;
  --soft:#EEF4F2;
  --line:#E3EAE7;
  --line-strong:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --r-pill:999px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:24px;
  --r-hero:28px;
  --sh-sm:0 1px 2px rgba(16,35,31,.06);
  --sh-md:0 8px 24px rgba(16,35,31,.08);
  --sh-lg:0 20px 48px rgba(16,35,31,.12);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --mono:ui-monospace,SFMono-Regular,"DIN Alternate","Roboto Mono",Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
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,p,figure{margin:0}
h1,h2,h3,h4{color:var(--title);line-height:1.35;font-weight:700}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-deep)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-size:16px;font-weight:600;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-md)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand-deep);border:1px solid var(--brand)}
.btn-ghost:hover{transform:translateY(-2px);background:var(--brand-soft);box-shadow:var(--sh-md)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--brand-deep);border:1px solid rgba(255,255,255,.7)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.btn-sm{padding:10px 18px;font-size:15px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;transform:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-deep);font-weight:600;font-size:15px;transition:color var(--t)}
.text-link .arw{transition:transform var(--t)}
.text-link:hover{color:var(--accent)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- Badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;line-height:1;font-weight:500}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#B4551F}
.badge-soft{background:var(--soft);color:var(--text)}
.badge-line{background:#fff;border:1px solid var(--line-strong);color:var(--brand-deep)}
.badge-third{background:#EEEEFA;color:#4343B8}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-sm);background:rgba(255,255,255,.96)}
.nav{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);display:grid;place-items:center;box-shadow:var(--sh-sm);flex-shrink:0}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:700;color:var(--title);letter-spacing:.2px}
.brand-sub{font-size:10px;letter-spacing:.16em;color:var(--muted);font-family:var(--mono)}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-block;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text);transition:color var(--t),background var(--t)}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand-deep);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:3px;background:var(--grad)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}

.mega-wrap{position:relative}
.mega-wrap::after{content:"";position:absolute;left:-10px;right:-10px;top:100%;height:16px}
.mega-trigger{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text);transition:color var(--t),background var(--t)}
.mega-trigger:hover,.mega-trigger[aria-expanded="true"]{color:var(--brand-deep);background:var(--brand-soft)}
.caret{font-size:11px;transition:transform var(--t)}
.mega-trigger[aria-expanded="true"] .caret{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:860px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh-lg);
  padding:28px;display:grid;grid-template-columns:1fr 1fr 268px;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel,.mega-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col-title{font-size:12px;letter-spacing:.1em;color:var(--muted);margin-bottom:14px;font-weight:600}
.mega-list li+li{margin-top:4px}
.mega-list a{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text);transition:background var(--t),color var(--t)}
.mega-list a:hover{background:var(--soft);color:var(--brand-deep)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0}
.dot.alt{background:var(--accent)}
.dot.third{background:var(--third)}
.mega-card{display:block;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.mega-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:var(--line-strong)}
.mega-card img{width:100%;height:110px;object-fit:cover}
.mega-card-body{padding:14px 16px 16px}
.mega-card-body h4{font-size:15px;margin-bottom:4px}
.mega-card-body p{font-size:13px;line-height:1.6;color:var(--muted)}
.mega-card-body .text-link{margin-top:8px;font-size:13px}

.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--title);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--title);border-radius:2px;transition:transform var(--t)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;padding:62px 0 66px;
  background-image:linear-gradient(115deg,rgba(14,158,130,.95) 0%,rgba(10,35,31,.88) 62%,rgba(242,129,74,.55) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 85%);
}
.page-hero-inner{position:relative;display:grid;grid-template-columns:1fr auto;gap:48px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.86);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:var(--r-pill)}
.page-hero h1{color:#fff;font-size:42px;line-height:1.3;margin:20px 0 16px;max-width:720px}
.hero-sub{font-size:17px;color:rgba(255,255,255,.86);max-width:640px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{font-size:13px;padding:7px 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);color:#fff}
.hero-side{display:flex;flex-direction:column;gap:14px}
.hero-badge{
  min-width:236px;background:#fff;border-radius:16px;padding:20px 22px;
  border:1px solid var(--line-strong);box-shadow:var(--sh-md);color:var(--text);
}
.hero-badge .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:38px;font-weight:700;color:var(--brand-deep);line-height:1.1}
.hero-badge .num em{font-style:normal;font-size:16px;margin-left:4px;color:var(--text)}
.hero-badge .lab{font-size:14px;color:var(--title);font-weight:600;margin-top:6px}
.hero-badge .foot{font-size:12px;color:var(--muted);margin-top:2px}

.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted);transition:color var(--t)}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb .sep{color:#C4D0CC}
.breadcrumb .now{color:var(--text)}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section.alt{background:var(--soft)}
.section.tight{padding-top:56px}
.section-head{margin-bottom:38px}
.section-head .kicker-soft{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand-deep);background:var(--brand-soft);padding:5px 12px;border-radius:var(--r-pill)}
.section-head h2{font-size:32px;margin:16px 0 14px}
.head-rule{width:45px;height:4px;border-radius:4px;background:var(--grad)}
.section-head .note{margin-top:14px;font-size:15px;color:var(--muted);max-width:760px}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

.lead{font-size:17px;color:var(--title);line-height:1.9}
.intro-copy p+p{margin-top:16px}
.intro-copy{max-width:900px}

/* ---------- Dark metrics panel ---------- */
.dark-panel{
  background:var(--ink);border-radius:var(--r-lg);padding:38px;color:#fff;
  display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
}
.dark-stat{border-left:2px solid rgba(63,198,166,.5);padding-left:18px}
.dark-stat .v{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:40px;font-weight:700;line-height:1.1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.dark-stat .v u{text-decoration:none;font-size:16px;color:#fff;-webkit-text-fill-color:#fff;margin-left:4px}
.dark-stat .l{font-size:14px;color:#fff;margin-top:10px;font-weight:600}
.dark-stat .f{font-size:12px;color:#9FB3AE;margin-top:4px;line-height:1.6}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:44px}
.timeline::before{
  content:"";position:absolute;left:24px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,rgba(14,158,130,.7),rgba(242,129,74,.55),rgba(14,158,130,.2));
}
.tl-item{position:relative;display:grid;grid-template-columns:48px 1fr;gap:26px;padding-bottom:30px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  width:48px;height:48px;border-radius:50%;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:18px;
  font-family:var(--mono);font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px var(--brand-soft);position:relative;z-index:1;
}
.tl-item:nth-child(even) .tl-num{background:var(--accent);box-shadow:0 0 0 6px var(--accent-soft)}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;
  box-shadow:var(--sh-sm);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-strong)}
.tl-body h3{font-size:20px;margin-bottom:10px}
.tl-body p{font-size:15px;color:var(--text)}
.mini-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.mini-badges .badge{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- Case cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-strong)}
.card-media{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;aspect-ratio:16/9;background:var(--brand-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:20px;margin:12px 0 10px}
.card-body p{font-size:15px;color:var(--text)}
.card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.case-points{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.case-points li{position:relative;padding-left:18px;font-size:14px;color:var(--text)}
.case-points li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.case-points li::after{content:none}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--sh-md);background:linear-gradient(90deg,var(--brand-soft) 0 6px,#fff 6px)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--title);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .ic{
  width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:14px;flex-shrink:0;transition:transform var(--t),background var(--t);
}
.faq-item[open] summary .ic{transform:rotate(180deg);background:var(--accent-soft);color:#B4551F}
.faq-item .ans{padding:0 22px 22px;font-size:15px;color:var(--text);border-top:1px dashed var(--line);margin-top:-2px;padding-top:16px}

/* ---------- Cross links ---------- */
.cross-card{display:flex;flex-direction:column;gap:10px;padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-sm);transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-strong)}
.cross-card h3{font-size:18px}
.cross-card p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- CTA strip ---------- */
.cta-strip{
  border-radius:var(--r-lg);padding:40px;color:#fff;
  background-image:var(--grad);box-shadow:var(--sh-lg);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-strip h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-strip p{color:rgba(255,255,255,.9);font-size:15px;max-width:620px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9D6D2;padding:64px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;box-shadow:none}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.8;color:#A9BBB6}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.site-footer ul li+li{margin-top:10px}
.site-footer ul a{font-size:14px;color:#C9D6D2;position:relative;transition:color var(--t)}
.site-footer ul a:hover{color:#fff}
.site-footer ul a:hover::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--brand);border-radius:2px}
.footer-contact .k{display:block;color:#fff;font-size:13px;font-weight:600}
.footer-contact .k+span{font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA39E;
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:#C9D6D2;transition:color var(--t)}
.to-top:hover{color:#fff}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (min-width:1440px){
  .container{max-width:1280px}
}
@media (max-width:1199px){
  .nav-menu{display:none}
  .nav-menu.is-open{
    display:flex;flex-direction:column;align-items:stretch;gap:2px;
    position:absolute;left:20px;right:20px;top:76px;
    background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-lg);
    padding:14px;max-height:70vh;overflow:auto;
  }
  .nav-menu.is-open .nav-link{padding:12px 14px}
  .nav-link.is-active::after{display:none}
  .nav-toggle{display:inline-flex}
  .site-header{position:sticky}
  .nav{position:relative}
  .page-hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-side{flex-direction:row;flex-wrap:wrap}
  .dark-panel{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
}
@media (max-width:991px){
  .mega-panel{width:min(680px,calc(100vw - 40px));grid-template-columns:1fr 1fr}
  .mega-card{grid-column:span 2}
  .page-hero h1{font-size:34px}
  .section-head h2{font-size:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  body{font-size:16px}
  .nav{height:64px;gap:12px}
  .brand-sub{display:none}
  .nav-actions .btn{display:none}
  .page-hero{padding:48px 0 52px}
  .page-hero h1{font-size:28px}
  .hero-sub{font-size:16px}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .grid-3{grid-template-columns:1fr}
  .dark-panel{grid-template-columns:1fr;padding:26px}
  .dark-stat .v{font-size:34px}
  .timeline::before{left:20px}
  .tl-item{grid-template-columns:40px 1fr;gap:16px}
  .tl-num{width:40px;height:40px;font-size:16px;box-shadow:0 0 0 4px var(--brand-soft)}
  .tl-item:nth-child(even) .tl-num{box-shadow:0 0 0 4px var(--accent-soft)}
  .tl-body{padding:20px}
  .cta-strip{padding:28px}
  .cta-strip h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{min-height:44px}
}
@media (max-width:520px){
  .hero-badge{min-width:0;width:100%}
  .hero-side{flex-direction:column}
  .mega-panel{grid-template-columns:1fr;width:calc(100vw - 32px);padding:20px}
  .mega-card{grid-column:span 1}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category2 */
:root{
  --brand:#0E9E82;
  --brand-deep:#0A7A66;
  --brand-soft:#E6F6F1;
  --accent:#F2814A;
  --accent-soft:#FDEDE4;
  --third:#5B5BD6;
  --ink:#10231F;
  --text:#0F1F1C;
  --body:#41524E;
  --muted:#7C8C88;
  --bg:#F7F9F8;
  --card:#FFFFFF;
  --sub:#EEF4F2;
  --line:#E3EAE7;
  --line-hover:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --grad-soft:linear-gradient(135deg,rgba(14,158,130,.12) 0%,rgba(63,198,166,.10) 55%,rgba(242,129,74,.12) 100%);
  --r-pill:999px;
  --r-btn:12px;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:24px;
  --r-hero:28px;
  --sh-sm:0 1px 2px rgba(16,35,31,.06);
  --sh-md:0 8px 24px rgba(16,35,31,.08);
  --sh-lg:0 20px 48px rgba(16,35,31,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size: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-soft);color:var(--brand-deep);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:14px 28px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background-color 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{
  background:var(--grad);
  color:#fff;
  box-shadow:var(--sh-md);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;
  color:var(--brand-deep);
  border:1px solid var(--brand);
}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-md);background:var(--brand-soft);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:42px;padding:11px 22px;font-size:15px;}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:var(--sh-sm);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-deep);font-weight:600;font-size:15px;
}
.btn-text .arw{transition:transform 220ms var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:6px 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;font-weight:600;
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge-accent{background:var(--accent-soft);color:#C25A24;}
.badge-third{background:#EDEDFB;color:#4343B8;}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--body);font-weight:500;}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--sub);color:var(--body);
  font-size:12px;line-height:1;font-weight:500;
}

.section{padding:88px 0;}
.section-sub{background:var(--sub);}
@media (max-width:991px){.section{padding:64px 0;}}
@media (max-width:767px){.section{padding:48px 0;}}

.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.sec-head-l{max-width:720px;}
.sec-kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-deep);
  margin-bottom:12px;
}
.sec-title{
  font-size:32px;
  line-height:1.35;
  color:var(--text);
  font-weight:800;
  letter-spacing:-.01em;
}
.sec-line{
  width:45px;height:4px;border-radius:var(--r-pill);
  background:var(--grad);
  margin:16px 0 14px;
}
.sec-desc{font-size:15px;color:var(--muted);max-width:640px;}
@media (max-width:767px){
  .sec-title{font-size:24px;}
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:28px;}
}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease),background-color 220ms var(--ease);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(8px);
  box-shadow:var(--sh-sm);
}
.nav{
  display:flex;align-items:center;gap:20px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.brand-sub{font-size:10px;letter-spacing:.18em;color:var(--muted);font-family:var(--font-num);}
.nav-menu{
  display:flex;align-items:center;gap:4px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--body);
  white-space:nowrap;
  transition:color 220ms var(--ease),background-color 220ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:3px;border-radius:var(--r-pill);
  background:var(--grad);opacity:0;transform:scaleX(.4);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease);
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand-deep);font-weight:700;}
.nav-link.is-active::after{opacity:1;transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.mega-wrap{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--body);
  transition:color 220ms var(--ease),background-color 220ms var(--ease);
}
.mega-trigger .caret{font-size:11px;transition:transform 220ms var(--ease);}
.mega-wrap:hover .mega-trigger,
.mega-wrap.is-open .mega-trigger,
.mega-trigger:focus-visible{color:var(--brand-deep);background:var(--brand-soft);}
.mega-wrap.is-open .mega-trigger .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;
  width:860px;max-width:calc(100vw - 40px);
  padding:28px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--sh-lg);
  display:grid;
  grid-template-columns:1fr 1fr 260px;
  gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms var(--ease);
}
.mega-wrap:hover .mega-panel,
.mega-wrap.is-open .mega-panel,
.mega-wrap:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-panel::before{
  content:"";position:absolute;top:-14px;left:0;right:0;height:14px;
}
.mega-col-title{
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--muted);margin-bottom:12px;
}
.mega-list li+li{margin-top:2px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--body);
  transition:background-color 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease);
}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateX(2px);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0;}
.dot.alt{background:var(--accent);}
.dot.third{background:var(--third);}
.mega-card{
  display:block;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease);
}
.mega-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-hover);}
.mega-card img{width:100%;height:104px;}
.mega-card div{padding:14px 16px 16px;}
.mega-card strong{display:block;font-size:15px;color:var(--text);}
.mega-card span{display:block;font-size:12px;color:var(--muted);line-height:1.6;margin-top:4px;}
.mega-card em{
  display:inline-flex;align-items:center;gap:4px;margin-top:10px;
  font-style:normal;font-size:13px;font-weight:600;color:var(--brand-deep);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform 220ms var(--ease),opacity 220ms var(--ease);}
.nav.is-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav.is-open .nav-toggle span:nth-child(2){opacity:0;}
.nav.is-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:1199px){
  .nav-menu{
    position:absolute;left:0;right:0;top:72px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-md);
    padding:10px 16px 18px;
    max-height:0;overflow:hidden;opacity:0;
    transition:max-height 240ms var(--ease),opacity 240ms var(--ease);
    margin-left:0;
  }
  .nav.is-open .nav-menu{max-height:420px;opacity:1;overflow:auto;}
  .nav-link{height:46px;border-radius:10px;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--brand-soft);}
  .nav-toggle{display:inline-flex;}
  .mega-wrap{display:none;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .nav{height:64px;gap:10px;}
  .brand-sub{display:none;}
  .nav-menu{top:64px;}
  .nav-actions .btn{padding:11px 16px;font-size:14px;min-height:42px;}
}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:16px;
}
.crumbs a{color:var(--muted);transition:color 220ms var(--ease);}
.crumbs a:hover{color:var(--brand-deep);}
.crumbs .sep{opacity:.6;}
.crumbs .cur{color:#9AA9A5;}

/* ============ 页面小 Hero ============ */
.page-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-image:linear-gradient(120deg,rgba(16,35,31,.86) 0%,rgba(14,158,130,.72) 52%,rgba(242,129,74,.55) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  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:56px 56px;
  pointer-events:none;
}
.page-hero-inner{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:40px;
  padding:56px 0;
  width:100%;
}
.page-hero .crumbs{color:rgba(255,255,255,.72);}
.page-hero .crumbs a{color:rgba(255,255,255,.82);}
.page-hero .crumbs a:hover{color:#fff;}
.page-hero .crumbs .cur{color:rgba(255,255,255,.56);}
.page-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:800;
  color:#fff;
  letter-spacing:-.015em;
  max-width:760px;
}
.page-hero p{
  margin-top:16px;
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:660px;
}
.hero-badge{
  background:#fff;
  border:1px solid rgba(255,255,255,.9);
  border-radius:var(--r-md);
  padding:22px 26px;
  box-shadow:var(--sh-lg);
  text-align:left;
  min-width:224px;
}
.hero-badge .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-badge .num i{font-style:normal;font-size:18px;margin-left:2px;}
.hero-badge .lb{font-size:14px;font-weight:700;color:var(--text);margin-top:6px;}
.hero-badge .fn{font-size:12px;color:var(--muted);line-height:1.6;margin-top:6px;}
@media (max-width:991px){
  .page-hero-inner{grid-template-columns:1fr;gap:24px;padding:48px 0;}
  .page-hero h1{font-size:32px;}
  .hero-badge{min-width:0;display:inline-block;}
}
@media (max-width:767px){
  .page-hero{min-height:auto;}
  .page-hero-inner{padding:44px 0 36px;gap:20px;}
  .page-hero h1{font-size:27px;line-height:1.34;}
  .page-hero p{font-size:15px;}
}

/* ============ 简介 ============ */
.intro{padding:72px 0 8px;}
.intro-grid{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.intro-grid p{font-size:16px;line-height:1.9;color:var(--body);}
.intro-grid p+p{margin-top:18px;}
.intro-side{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 26px 28px;
  box-shadow:var(--sh-sm);
}
.intro-side h3{font-size:17px;color:var(--text);font-weight:800;margin-bottom:14px;}
.intro-side li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;line-height:1.75;color:var(--body);
  padding:9px 0;
  border-bottom:1px dashed var(--line);
}
.intro-side li:last-child{border-bottom:0;padding-bottom:0;}
.intro-side li .ck{
  flex-shrink:0;width:18px;height:18px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:11px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
  margin-top:5px;
}
@media (max-width:991px){
  .intro{padding:48px 0 8px;}
  .intro-grid{grid-template-columns:1fr;gap:28px;}
}

/* ============ 场景卡片网格（等宽两列，奇偶交替底色） ============ */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  min-height:220px;
  display:flex;flex-direction:column;
  padding:28px;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:#fff;
  box-shadow:var(--sh-sm);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.scene-card:nth-child(even){background:var(--sub);}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-hover);}
.scene-card-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.scene-ico{
  width:46px;height:46px;border-radius:14px;flex-shrink:0;
  background:var(--grad);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-sm);
}
.scene-ico svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.scene-card h3{font-size:20px;line-height:1.4;color:var(--text);font-weight:800;}
.scene-card .lead{font-size:13px;color:var(--muted);margin-top:2px;}
.scene-points{margin:2px 0 18px;}
.scene-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;line-height:1.8;color:var(--body);
  margin-bottom:6px;
}
.scene-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);
}
.scene-foot{
  margin-top:auto;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:16px;
  border-top:1px solid var(--line);
}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;}
.scene-card:nth-child(even) .tag{background:#fff;}
@media (max-width:991px){
  .scene-grid{grid-template-columns:1fr;}
  .scene-card{padding:24px;min-height:0;}
}

/* ============ 落地四步 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.step{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 22px;
  box-shadow:var(--sh-sm);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-hover);}
.step-no{
  width:48px;height:48px;border-radius:50%;
  background:var(--grad);
  color:#fff;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:18px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  margin-bottom:16px;
  box-shadow:var(--sh-sm);
}
.step h3{font-size:17px;color:var(--text);font-weight:800;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.8;color:var(--body);}
.step-meta{
  margin-top:14px;font-size:12px;color:var(--muted);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}
@media (max-width:991px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:600px){.steps{grid-template-columns:1fr;}}

/* ============ 数据条 ============ */
.data-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.data-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  box-shadow:var(--sh-sm);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.data-item:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand);}
.data-item .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:38px;line-height:1.1;font-weight:700;
  color:var(--brand-deep);
  transition:transform 220ms var(--ease);
}
.data-item:hover .num{transform:translateY(-2px);}
.data-item .num i{font-style:normal;font-size:16px;margin-left:3px;color:var(--body);}
.data-item .lb{font-size:14px;font-weight:700;color:var(--text);margin-top:10px;}
.data-item .fn{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.6;}
@media (max-width:991px){.data-strip{grid-template-columns:1fr;gap:16px;}}

/* ============ FAQ ============ */
.faq-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.5fr);
  gap:48px;
  align-items:start;
}
.faq-aside{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 28px;
  box-shadow:var(--sh-sm);
}
.faq-aside h2{font-size:26px;line-height:1.4;color:var(--text);font-weight:800;}
.faq-aside p{font-size:14px;line-height:1.85;color:var(--body);margin:14px 0 22px;}
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease),background-color 220ms var(--ease);
}
.faq-item:hover{border-color:var(--line-hover);box-shadow:var(--sh-sm);}
.faq-item.is-open{background:#FBFEFC;border-color:var(--line-hover);box-shadow:var(--sh-sm);}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;
  padding:16px 20px;
  text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  position:relative;
  transition:color 220ms var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad);opacity:0;transition:opacity 220ms var(--ease);
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-item.is-open .faq-q{color:var(--brand-deep);}
.faq-q .ico{
  flex-shrink:0;width:24px;height:24px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;line-height:1;
  transition:transform 220ms var(--ease),background-color 220ms var(--ease),color 220ms var(--ease);
}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--brand);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 260ms var(--ease);
}
.faq-a p{
  padding:0 20px 20px 23px;
  font-size:14px;line-height:1.85;color:var(--body);
}
@media (max-width:991px){
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .faq-aside h2{font-size:22px;}
}

/* ============ 交叉入口 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.cross-card{
  display:flex;flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-sm);
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-hover);}
.cross-card img{width:100%;height:120px;border-radius:var(--r-sm);margin-bottom:16px;}
.cross-card h3{font-size:17px;color:var(--text);font-weight:800;margin-bottom:8px;}
.cross-card p{font-size:14px;line-height:1.8;color:var(--body);margin-bottom:16px;}
.cross-card .more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-deep);
}
.cross-card .more .arw{transition:transform 220ms var(--ease);}
.cross-card:hover .more .arw{transform:translateX(4px);}
@media (max-width:991px){.cross-grid{grid-template-columns:1fr;}}

/* ============ CTA 条 ============ */
.cta-band{
  border-radius:var(--r-lg);
  background:var(--grad);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-md);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.14);
}
.cta-band-l{position:relative;z-index:2;max-width:680px;}
.cta-band h2{font-size:26px;line-height:1.4;color:#fff;font-weight:800;}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);}
.cta-band .btn{position:relative;z-index:2;background:#fff;color:var(--brand-deep);flex-shrink:0;}
.cta-band .btn:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);}
@media (max-width:767px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:#C9D6D2;
  margin-top:88px;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800;}
.site-footer p{font-size:14px;line-height:1.85;color:#A9BAB5;}
.footer-col h4{
  font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;
  position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:"";position:absolute;left:0;bottom:0;width:28px;height:3px;border-radius:var(--r-pill);
  background:var(--grad);
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  position:relative;font-size:14px;color:#C9D6D2;
  transition:color 220ms var(--ease);
}
.footer-col ul a::after{
  content:"";position:absolute;left:0;bottom:-3px;width:100%;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.footer-col ul a:hover{color:#fff;}
.footer-col ul a:hover::after{transform:scaleX(1);}
.footer-contact li{display:flex;flex-direction:column;gap:2px;margin-bottom:14px;}
.footer-contact .k{font-size:12px;color:#7E918C;letter-spacing:.06em;}
.footer-contact span:not(.k){font-size:14px;color:#C9D6D2;line-height:1.7;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
}
.footer-bottom p{font-size:13px;color:#8FA19C;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:#C9D6D2;
  transition:color 220ms var(--ease);
}
.to-top:hover{color:#fff;}
@media (max-width:991px){
  .site-footer{padding-top:56px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:600px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
  .scene-card:hover,.step:hover,.data-item:hover,.cross-card:hover,.btn:hover,.mega-card:hover{transform:none !important;}
}

/* roulang page: category4 */
:root{
  --brand:#0E9E82;
  --brand-deep:#0A7A66;
  --brand-soft:#E6F6F1;
  --accent:#F2814A;
  --accent-soft:#FDEDE4;
  --third:#5B5BD6;
  --ink:#10231F;
  --title:#0F1F1C;
  --text:#41524E;
  --muted:#7C8C88;
  --bg:#F7F9F8;
  --card:#FFFFFF;
  --sub:#EEF4F2;
  --line:#E3EAE7;
  --line-strong:#C9E8DE;
  --grad:linear-gradient(135deg,#0E9E82 0%,#3FC6A6 55%,#F2814A 100%);
  --r-pill:999px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:24px;
  --r-hero:28px;
  --sh-sm:0 1px 2px rgba(16,35,31,.06);
  --sh-md:0 8px 24px rgba(16,35,31,.08);
  --sh-lg:0 20px 48px rgba(16,35,31,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--title);line-height:1.35;font-weight:700;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){ .container{max-width:1280px;} }

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-md);background:rgba(255,255,255,.96);}
.nav{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  box-shadow:var(--sh-sm);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:18px;font-weight:700;color:var(--title);letter-spacing:.2px;}
.brand-sub{font-size:10px;letter-spacing:2px;color:var(--muted);font-family:var(--font-num);}

.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--text);
  border-radius:10px;
  transition:color 220ms var(--ease),background 220ms var(--ease);
}
.nav-link:hover{color:var(--brand-deep);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand-deep);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:4px;height:3px;
  border-radius:3px;background:var(--grad);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}

/* mega */
.mega-wrap{position:relative;padding-bottom:14px;margin-bottom:-14px;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:10px 16px;font-size:14px;color:var(--text);
  cursor:pointer;
  transition:all 220ms var(--ease);
}
.mega-trigger:hover{border-color:var(--line-strong);color:var(--brand-deep);box-shadow:var(--sh-sm);}
.mega-trigger .caret{font-size:10px;transition:transform 220ms var(--ease);}
.mega-wrap.is-open .mega-trigger{border-color:var(--line-strong);color:var(--brand-deep);}
.mega-wrap.is-open .mega-trigger .caret{transform:rotate(180deg);}
.mega-panel{
  position:absolute;
  right:0;top:calc(100% + 8px);
  width:860px;max-width:calc(100vw - 48px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--sh-lg);
  padding:28px;
  display:grid;
  grid-template-columns:1fr 1fr 300px;
  gap:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel,
.mega-wrap.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col-title{font-size:12px;letter-spacing:1px;color:var(--muted);margin-bottom:12px;}
.mega-list li + li{margin-top:4px;}
.mega-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:10px;font-size:14px;color:var(--text);
  transition:background 220ms var(--ease),color 220ms var(--ease);
}
.mega-list a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex-shrink:0;}
.dot.alt{background:var(--accent);}
.dot.third{background:var(--third);}
.mega-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.mega-card:hover{box-shadow:var(--sh-md);transform:translateY(-2px);}
.mega-card img{width:100%;height:120px;object-fit:cover;}
.mega-card-body{padding:14px 16px 16px;}
.mega-card-body h5{margin:0 0 6px;font-size:15px;color:var(--title);}
.mega-card-body p{font-size:13px;line-height:1.6;color:var(--muted);}
.mega-card-more{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;color:var(--brand-deep);}
.mega-card-more span{transition:transform 220ms var(--ease);}
.mega-card:hover .mega-card-more span{transform:translateX(4px);}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform 220ms var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  padding:14px 28px;
  font-size:16px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:var(--sh-md);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand-deep);}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-md);background:var(--brand-soft);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none!important;box-shadow:var(--sh-sm);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-deep);
}
.btn-text span{transition:transform 220ms var(--ease);}
.btn-text:hover span{transform:translateX(4px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-radius:0 0 var(--r-hero) var(--r-hero);
  background-image:linear-gradient(115deg,rgba(10,122,102,.94) 0%,rgba(14,158,130,.86) 45%,rgba(242,129,74,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.page-hero .container{
  position:relative;z-index:2;
  min-height:300px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  padding-top:56px;padding-bottom:56px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{opacity:.7;}
.crumb .current{color:rgba(255,255,255,.72);}
.page-hero h1{
  color:#fff;font-size:clamp(28px,3.4vw,44px);line-height:1.28;
  max-width:640px;letter-spacing:.4px;
}
.page-hero .hero-sub{
  margin-top:16px;font-size:17px;color:rgba(255,255,255,.9);max-width:560px;line-height:1.75;
}
.hero-badge{
  flex-shrink:0;
  background:rgba(255,255,255,.96);
  border:1px solid rgba(14,158,130,.35);
  border-radius:20px;
  padding:22px 26px;
  min-width:220px;
  box-shadow:var(--sh-lg);
  text-align:center;
}
.hero-badge .num{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:38px;font-weight:700;color:var(--brand-deep);line-height:1.1;
}
.hero-badge .num small{font-size:16px;font-weight:600;margin-left:2px;}
.hero-badge .label{margin-top:6px;font-size:14px;color:var(--title);font-weight:600;}
.hero-badge .foot{margin-top:4px;font-size:12px;color:var(--muted);}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section.alt{background:var(--sub);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:1.4px;font-weight:600;
  color:var(--brand-deep);background:var(--brand-soft);
  padding:6px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head .rule{
  width:45px;height:4px;border-radius:3px;background:var(--grad);margin:16px 0;
}
.section-head p{font-size:16px;color:var(--text);max-width:680px;}

.lead-rows{max-width:900px;}
.lead-rows p{font-size:16.5px;line-height:1.9;color:var(--text);}
.lead-rows p + p{margin-top:18px;}

/* ---------- compare (问题 / 解答) ---------- */
.compare-list{display:flex;flex-direction:column;gap:20px;}
.compare-pair{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.35fr);
  gap:20px;
  align-items:stretch;
}
.compare-card{
  border-radius:var(--r-lg);
  padding:24px 26px;
  border:1px solid var(--line);
  background:#fff;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease);
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--line-strong);}
.compare-q{background:#F3F7F6;border-color:#E3EAE7;}
.compare-q .tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--text);
  background:#E7EDEB;border-radius:var(--r-pill);padding:5px 12px;margin-bottom:12px;
}
.compare-q h3{font-size:20px;margin-bottom:8px;}
.compare-q p{font-size:14px;color:var(--muted);line-height:1.75;}
.compare-a{
  border-left:4px solid var(--brand);
  background:#fff;
}
.compare-a .tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:5px 12px;margin-bottom:12px;
}
.compare-a ol{counter-reset:step;display:flex;flex-direction:column;gap:12px;margin-top:4px;}
.compare-a ol li{
  position:relative;
  padding-left:38px;
  font-size:15px;line-height:1.8;color:var(--text);
}
.compare-a ol li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:2px;
  width:24px;height:24px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  font-family:var(--font-num);font-size:12px;font-weight:700;
  display:grid;place-items:center;
  border:1px solid var(--line-strong);
}
.compare-a .hint{
  margin-top:16px;font-size:13px;color:var(--muted);
  background:var(--sub);border-radius:12px;padding:10px 14px;
}

/* ---------- support channels ---------- */
.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.support-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;display:flex;flex-direction:column;gap:12px;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease);
}
.support-card:hover{box-shadow:var(--sh-md);transform:translateY(-4px);border-color:var(--line-strong);}
.support-card.wide{grid-column:1 / -1;flex-direction:row;align-items:center;gap:28px;}
.support-card.wide .support-text{flex:1;}
.support-ico{
  width:48px;height:48px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:22px;flex-shrink:0;
}
.support-card h3{font-size:20px;}
.support-card p{font-size:15px;color:var(--text);line-height:1.8;}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;}
.chip{
  font-size:12px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand-deep);font-weight:600;
}
.chip.warm{background:var(--accent-soft);color:#B04F1F;}

/* ---------- faq ---------- */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color 220ms var(--ease),box-shadow 220ms var(--ease);
}
.faq-item + .faq-item{margin-top:12px;}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--sh-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:15px 22px;
  font-size:16px;font-weight:600;color:var(--title);
  transition:background 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:focus-visible{outline-offset:-3px;}
.faq-ico{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-size:15px;line-height:1;
  transition:transform 220ms var(--ease),background 220ms var(--ease);
}
.faq-item[open]{border-color:var(--line-strong);border-left:3px solid var(--brand);background:#FBFEFD;}
.faq-item[open] summary{background:var(--brand-soft);color:var(--brand-deep);}
.faq-item[open] .faq-ico{transform:rotate(180deg);background:#fff;}
.faq-body{padding:16px 22px 20px;border-top:1px solid var(--line);}
.faq-body p{font-size:15px;line-height:1.85;color:var(--text);}
.faq-body p + p{margin-top:10px;}
.faq-grid{margin-top:0;}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cross-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease),border-color 220ms var(--ease);
}
.cross-card:hover{box-shadow:var(--sh-md);transform:translateY(-4px);border-color:var(--line-strong);}
.cross-card img{width:100%;height:150px;object-fit:cover;}
.cross-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.cross-body h3{font-size:18px;margin-bottom:8px;}
.cross-body p{font-size:14px;color:var(--muted);line-height:1.75;flex:1;}
.cross-body .btn-text{margin-top:14px;}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:var(--r-lg);
  background:var(--grad);
  color:#fff;
  padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-lg);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.3vw,28px);}
.cta-band p{margin-top:8px;color:rgba(255,255,255,.92);font-size:15px;max-width:620px;}
.cta-band .btn{background:#fff;color:var(--brand-deep);box-shadow:var(--sh-md);flex-shrink:0;}
.cta-band .btn:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9D6D2;padding:64px 0 0;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;font-size:18px;font-weight:700;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{
  font-size:14px;color:#C9D6D2;position:relative;
  transition:color 220ms var(--ease);
}
.footer-col ul a:hover{color:#fff;}
.footer-col ul a:hover::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:100%;
  background:var(--brand);border-radius:2px;
}
.footer-col p{font-size:14px;line-height:1.85;color:#A9BAB5;}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;}
.footer-contact .k{color:#fff;flex-shrink:0;min-width:64px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FB0AB;
}
.to-top{color:#C9D6D2;display:inline-flex;align-items:center;gap:6px;}
.to-top:hover{color:#fff;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-menu{gap:2px;}
  .nav-link{padding:10px 10px;font-size:14px;}
  .mega-panel{width:720px;grid-template-columns:1fr 1fr 260px;}
}
@media (max-width:991px){
  .nav-menu{
    display:none;
    position:absolute;left:24px;right:24px;top:76px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-lg);padding:14px;
    max-height:0;overflow:hidden;
    transition:max-height 240ms var(--ease),padding 240ms var(--ease);
  }
  .nav-menu.is-open{display:flex;max-height:420px;}
  .nav-toggle{display:flex;}
  .mega-wrap{display:none;}
  .nav-actions .btn{padding:11px 18px;font-size:14px;}
  .page-hero .container{flex-direction:column;align-items:flex-start;gap:26px;min-height:auto;padding-top:44px;padding-bottom:44px;}
  .hero-badge{min-width:0;width:100%;text-align:left;}
  .section{padding:64px 0;}
  .section.tight{padding:52px 0;}
  .compare-pair{grid-template-columns:1fr;}
  .support-grid{grid-template-columns:1fr;}
  .support-card.wide{flex-direction:column;align-items:flex-start;}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  .brand-name{font-size:16px;}
  .brand-sub{display:none;}
  .nav{height:64px;gap:12px;}
  .nav-menu{top:68px;left:20px;right:20px;}
  .nav-actions .btn span.long{display:none;}
  .page-hero{border-radius:0 0 20px 20px;}
  .page-hero h1{font-size:26px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .hero-badge{padding:18px 20px;}
  .hero-badge .num{font-size:30px;}
  .section{padding:48px 0;}
  .section.tight{padding:40px 0;}
  .section-head{margin-bottom:28px;}
  .compare-card{padding:20px;border-radius:var(--r-card);}
  .compare-a ol li{padding-left:34px;}
  .cross-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px 22px;border-radius:20px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:28px;}
  .site-footer{padding-top:48px;margin-top:64px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .btn{min-height:44px;}
}