/* roulang page: index */
:root{
  --brand:#0FA57A;
  --brand-deep:#0A7A5B;
  --brand-soft:#E6F5EF;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E7;
  --ink:#0E1512;
  --ink-2:#33403A;
  --muted:#6B7A73;
  --line:#E4E9E5;
  --bg:#F7F8F5;
  --surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;
  --radius-m:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04),0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 2px 8px rgba(14,21,18,.07),0 22px 44px -20px rgba(14,21,18,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.26;letter-spacing:-.01em}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.4vw,38px)}
h3{font-size:20px;font-weight:600}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand-deep)}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(15,165,122,.45);outline-offset:2px}
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
@media (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
}
@media (max-width:639px){
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .grid-container{padding-left:18px;padding-right:18px}
}

/* ---------- 顶部导航面板 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  padding:14px 0;
  background:rgba(247,248,245,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:padding var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-head.is-stuck{padding:8px 0;background:rgba(247,248,245,.96);box-shadow:0 10px 30px -22px rgba(14,21,18,.5)}
.head-bar{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:padding var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-head.is-stuck .head-bar{padding:7px 12px;box-shadow:var(--shadow-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);
  display:grid;place-items:center;position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:-3px;bottom:-3px;width:12px;height:12px;
  border-radius:4px;background:var(--accent);border:2px solid var(--surface);
}
.brand-mark svg{width:19px;height:19px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:.01em}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 13px;border-radius:var(--radius-s);
  font-size:13.5px;color:var(--ink-2);white-space:nowrap;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-chip svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.nav-chip:hover svg{transform:translateY(-2px)}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);box-shadow:inset 0 0 0 2px rgba(15,165,122,.34)}
.head-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (max-width:1023px){
  .head-nav{display:none}
  .head-actions .btn{display:none}
  .nav-toggle{display:grid}
  .brand-text{font-size:13.5px}
}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:rgba(14,21,18,.42);
  opacity:0;visibility:hidden;transition:opacity var(--dur) var(--ease),visibility var(--dur) var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.drawer-inner{
  position:absolute;top:0;right:0;bottom:0;width:min(360px,88vw);
  background:var(--surface);padding:22px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);transition:transform 260ms var(--ease);overflow-y:auto;
}
.nav-drawer.is-open .drawer-inner{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{width:32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);font-size:19px;line-height:1;display:grid;place-items:center}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-chip{
  padding:12px 12px;border-radius:var(--radius-s);border:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);text-align:center;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.drawer-chip:hover{background:var(--brand-soft);border-color:rgba(15,165,122,.4);color:var(--brand-deep)}
.drawer-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);box-shadow:inset 0 0 0 2px rgba(15,165,122,.34)}

/* ---------- 按钮 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(10,122,91,.9)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(10,122,91,.95)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid rgba(14,21,18,.28)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,165,122,.45);transform:translateY(-1px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#C24A18}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-deep);
}
.arrow-link::after{content:"→";display:inline-block;transition:transform var(--dur) var(--ease)}
.arrow-link:hover{color:var(--brand)}
.arrow-link:hover::after{transform:translateX(4px)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 96px}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:56px 56px;opacity:.32;
  -webkit-mask-image:radial-gradient(circle at 62% 34%,#000 0%,transparent 72%);
  mask-image:radial-gradient(circle at 62% 34%,#000 0%,transparent 72%);
}
.hero-row{position:relative;z-index:1}
.hero-title{margin:18px 0 18px;max-width:12em}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:34em;line-height:1.9}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 26px}
.trust-bar{display:flex;flex-wrap:wrap;gap:0;font-size:12.5px;color:var(--muted);letter-spacing:.02em}
.trust-bar li{display:flex;align-items:center;gap:10px}
.trust-bar li::after{content:"";width:1px;height:12px;background:var(--line);margin:0 12px}
.trust-bar li:last-child::after{display:none}
.hero-media{
  position:relative;margin:0;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--brand-soft);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-chip{position:absolute;left:16px;top:16px}
.hero-stat{
  position:absolute;right:16px;bottom:16px;
  background:rgba(255,255,255,.95);border:1px solid var(--line);border-radius:14px;
  padding:10px 14px;display:flex;flex-direction:column;align-items:flex-start;
  box-shadow:var(--shadow-1);min-width:132px;
}
.hero-stat b{font-family:var(--font-num);font-size:26px;font-weight:800;color:var(--ink);line-height:1;font-variant-numeric:tabular-nums}
.hero-stat i{font-style:normal;font-size:12px;color:var(--brand-deep);font-weight:700;margin-left:2px}
.hero-stat em{font-style:normal;font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- 板块标题 ---------- */
.sec-head{margin-bottom:36px;max-width:760px}
.sec-head h2{margin-bottom:12px}
.sec-desc{font-size:16px;color:var(--muted);line-height:1.85}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}
@media (max-width:639px){
  .sec-head{margin-bottom:26px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:10px}
}

/* ---------- 痛点提问卡 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.pain-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-s);padding:22px 22px 22px 26px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:var(--accent-soft);transition:background var(--dur) var(--ease);
}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,165,122,.3)}
.pain-card:hover::before{background:var(--accent)}
.pain-card h3{font-size:17px;margin-bottom:8px}
.pain-card p{font-size:14px;color:var(--muted);line-height:1.75}
@media (max-width:1023px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.pain-grid{grid-template-columns:1fr;gap:16px}}

/* ---------- 方案卡片（1 大 + 2 小） ---------- */
.sol-large{
  position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:520px;height:100%;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.sol-large:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.sol-large img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.sol-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(16,26,22,.18) 0%,rgba(16,26,22,.78) 62%,rgba(16,26,22,.92) 100%)}
.sol-body{position:relative;z-index:2;padding:32px;color:#fff}
.sol-num{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.16em;padding:4px 10px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.16);color:#fff;margin-bottom:14px;
}
.sol-body h3{color:#fff;font-size:24px;margin-bottom:12px}
.sol-points li{
  position:relative;padding-left:16px;margin-bottom:6px;font-size:14.5px;color:rgba(255,255,255,.88);
}
.sol-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--brand)}
.sol-link{margin-top:16px;color:#fff}
.sol-link:hover{color:#fff}
.sol-link::after{content:"→";margin-left:6px;display:inline-block;transition:transform var(--dur) var(--ease)}
.sol-link:hover::after{transform:translateX(4px)}
.sol-col{display:grid;gap:22px;height:100%}
.sol-small{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-m);padding:26px 28px;box-shadow:var(--shadow-1);
  overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.sol-small::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--brand);
  transition:width 260ms var(--ease);
}
.sol-small:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,165,122,.3)}
.sol-small:hover::before{width:100%}
.sol-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  display:grid;place-items:center;margin-bottom:14px;
}
.sol-icon svg{width:21px;height:21px;stroke:var(--brand-deep);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.sol-small h3{font-size:19px;margin-bottom:10px}
.sol-small .sol-points li{color:var(--ink-2)}
.sol-small .sol-points li::before{background:var(--brand)}
@media (max-width:1023px){
  .sol-large{min-height:420px}
  .sol-col{margin-top:22px}
}

/* ---------- 数据面板 ---------- */
.stat-panel{
  background:var(--panel-dark);border-radius:var(--radius-m);
  padding:44px 44px 34px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-2);
}
.stat-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:300px;height:300px;border-radius:50%;
  background:rgba(15,165,122,.12);
}
.stat-head{position:relative;z-index:1;display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:30px}
.stat-head h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.stat-head span{font-size:12.5px;color:rgba(255,255,255,.5);letter-spacing:.06em}
.stat-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr)}
.stat-cell{
  padding:8px 22px 8px 0;
  border-left:1px solid rgba(255,255,255,.12);
  padding-left:24px;
}
.stat-cell:first-child{border-left:0;padding-left:0}
.stat-num{
  font-family:var(--font-num);font-size:clamp(36px,5vw,62px);font-weight:800;
  color:#fff;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:.36em;font-weight:700;color:var(--brand);margin-left:4px;letter-spacing:0}
.stat-label{display:block;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.56);letter-spacing:.06em}
@media (max-width:1023px){
  .stat-panel{padding:32px 26px 22px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px 0}
  .stat-cell:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:639px){
  .stat-head{flex-direction:column;gap:6px}
  .stat-cell{padding-right:12px;padding-left:16px}
}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,165,122,.3);color:inherit}
.news-media{position:relative;aspect-ratio:16/10;background:var(--brand-soft);overflow:hidden}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.news-card:hover .news-media img{transform:scale(1.04)}
.news-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{
  font-size:17px;line-height:1.55;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:13.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;
}
.news-meta .arrow-link{margin-left:auto;font-size:13px}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-m);background:var(--surface);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty-state svg{width:38px;height:38px;stroke:var(--brand);fill:none;stroke-width:1.6;margin:0 auto 14px;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{font-size:15px;margin-bottom:12px}
@media (max-width:1023px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.news-grid{grid-template-columns:1fr;gap:18px}}

/* ---------- FAQ ---------- */
.faq-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  opacity:0;transition:opacity var(--dur) var(--ease);
}
.faq-item[open]::before{opacity:1}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--brand-deep);line-height:1;
  transition:transform var(--dur) var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{background:var(--brand-soft)}
.faq-answer{padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:70em}
@media (max-width:639px){
  .faq-item summary{padding:16px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);padding:32px 36px;position:relative;overflow:hidden;
}
.cta-bar::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand);
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px}
.cta-bar p{font-size:14.5px;color:var(--muted)}
@media (max-width:767px){
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 24px}
  .cta-bar .btn{width:100%}
}

/* ---------- 弹层表单 ---------- */
.reveal.lead-modal{
  border-radius:20px;padding:0;border:0;overflow:hidden;
  width:min(560px,92vw);box-shadow:var(--shadow-2);background:var(--surface);
}
.reveal.lead-modal::before{content:"";display:block;height:3px;background:var(--brand)}
.lead-modal-inner{padding:30px 32px 28px}
.lead-modal-inner h3{font-size:22px;margin-bottom:8px}
.lead-modal-inner .lead-note{font-size:14px;color:var(--muted);margin-bottom:22px}
.lead-close{
  position:absolute;right:14px;top:16px;width:32px;height:32px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-deep);font-size:18px;line-height:1;
  display:grid;place-items:center;z-index:3;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-s);
  border:1px solid var(--line);background:var(--bg);font-size:14.5px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--brand);background:var(--surface);
  box-shadow:0 0 0 3px rgba(15,165,122,.18);
}
.field.has-error input,.field.has-error select{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,44,.14)}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--muted);line-height:1.7;margin:6px 0 18px}
.consent input{margin-top:3px;width:16px;height:16px;accent-color:var(--brand);flex:0 0 auto}
.form-tip{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7}
@media (max-width:639px){
  .reveal.lead-modal{width:100%;max-width:100%;bottom:0;top:auto;left:0;right:0;border-radius:20px 20px 0 0}
  .lead-modal-inner{padding:24px 20px 26px}
}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 30px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:30em}
.foot-contact{margin-top:16px;font-size:13.5px;color:var(--ink-2);line-height:2}
.foot-contact b{font-weight:600;color:var(--ink)}
.foot-col h4{font-size:13px;letter-spacing:.14em;color:var(--muted);font-weight:600;margin-bottom:16px}
.foot-col a{display:block;font-size:14px;color:var(--ink-2);padding:5px 0;transition:color var(--dur) var(--ease),transform var(--dur) var(--ease)}
.foot-col a:hover{color:var(--brand-deep);transform:translateX(3px)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12.5px;color:var(--muted);
}
@media (max-width:1023px){.foot-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:639px){.foot-grid{grid-template-columns:1fr;gap:24px}.site-foot{padding:44px 0 24px}}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(12px)}
.fade-up.is-in{opacity:1;transform:translateY(0);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --brand:#0FA57A;
  --brand-deep:#0A7A5B;
  --brand-soft:#E6F5EF;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E7;
  --ink:#0E1512;
  --ink-2:#33403A;
  --muted:#6B7A73;
  --line:#E4E9E5;
  --bg:#F7F8F5;
  --surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;
  --radius-m:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04), 0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 3px 6px rgba(14,21,18,.06), 0 20px 44px -18px rgba(14,21,18,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --num-font:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
:focus-visible{outline:3px solid rgba(15,165,122,.45);outline-offset:2px;border-radius:6px;}

.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-x{display:flex;flex-wrap:wrap;}
.grid-margin-x{margin-left:-10px;margin-right:-10px;}
.cell{padding-left:10px;padding-right:10px;width:100%;}
.large-8{width:100%;}
.large-4{width:100%;}
@media screen and (min-width:1024px){
  .large-8{width:66.6667%;}
  .large-4{width:33.3333%;}
}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,248,245,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-head.is-scrolled{box-shadow:0 10px 28px -22px rgba(14,21,18,.55);}
.head-bar{display:flex;align-items:center;gap:18px;min-height:72px;padding:12px 0;transition:min-height var(--dur) var(--ease);}
.site-head.is-scrolled .head-bar{min-height:62px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--brand);display:grid;place-items:center;box-shadow:0 8px 18px -12px rgba(15,165,122,.9);}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}
.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;
  font-size:13.5px;color:var(--ink-2);
  border-radius:var(--radius-s);
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
  white-space:nowrap;
}
.nav-chip svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease);}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.nav-chip:hover svg{transform:translateY(-2px);}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);box-shadow:inset 0 0 0 2px rgba(15,165,122,.35);}
.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);
  align-items:center;justify-content:center;
  transition:border-color var(--dur) var(--ease);
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--dur) var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

@media screen and (max-width:1023px){
  .head-bar{min-height:62px;flex-wrap:nowrap;}
  .brand-text{font-size:15.5px;}
  .nav-toggle{display:inline-flex;}
  .head-actions .btn-primary{display:none;}
  .head-nav{
    position:fixed;left:0;right:0;top:62px;bottom:0;
    margin-left:0;
    display:grid;grid-template-columns:1fr 1fr;gap:12px;
    align-content:start;
    padding:22px 24px 40px;
    background:var(--surface);
    border-top:1px solid var(--line);
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;pointer-events:none;
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
  }
  .nav-chip{font-size:14px;padding:16px 14px;background:var(--bg);justify-content:flex-start;}
  .head-nav.is-open{opacity:1;transform:none;pointer-events:auto;}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .head-nav{grid-template-columns:1fr;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  font-size:15px;font-weight:700;
  border-radius:var(--radius-s);
  border:1px solid transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(15,165,122,.9);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary[disabled],.btn-primary.is-disabled{opacity:.4;pointer-events:none;box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-2);transition:color var(--dur) var(--ease);}
.link-arrow svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease);}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 通用卡片 ---------- */
.surface-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;font-size:12px;font-weight:600;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand-deep);
  letter-spacing:.02em;
}
.badge-accent{background:var(--accent-soft);color:#C2480F;}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;}
.section{padding:64px 0;}
@media screen and (min-width:640px){.section{padding:76px 0;}}
@media screen and (min-width:1024px){.section{padding:92px 0;}}
.section-title{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em;line-height:1.3;}
.section-lead{color:var(--muted);font-size:15.5px;margin-top:10px;}

/* ---------- 文章头 ---------- */
.page-head{padding:30px 0 26px;border-bottom:1px solid var(--line);background:var(--bg);}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a{transition:color var(--dur) var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.crumb-sep{opacity:.55;}
.article-title{
  font-size:clamp(26px,4vw,42px);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.02em;
  margin:16px 0 16px;
  max-width:940px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);font-family:var(--num-font);font-variant-numeric:tabular-nums;}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--muted);opacity:.6;}
.meta-chip{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 12px;font-size:12.5px;color:var(--ink-2);font-family:inherit;}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:36px 0 8px;}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:28px;
  max-width:760px;
}
@media screen and (min-width:640px){.article-card{padding:40px 44px;}}

.prose{font-size:17px;line-height:1.9;color:var(--ink-2);}
.prose > *:first-child{margin-top:0;}
.prose p{margin:0 0 1.15em;}
.prose h2{
  position:relative;
  padding-left:15px;
  margin:48px 0 14px;
  font-size:clamp(20px,2.4vw,25px);
  font-weight:700;
  color:var(--ink);
  line-height:1.4;
}
.prose h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;border-radius:3px;background:var(--brand);}
.prose h3{margin:32px 0 10px;font-size:20px;font-weight:600;color:var(--ink);line-height:1.45;}
.prose h4{margin:24px 0 8px;font-size:17px;font-weight:700;color:var(--ink);}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.35em;}
.prose ul{list-style:none;}
.prose ul li{position:relative;padding-left:4px;}
.prose ul li::before{content:"";position:absolute;left:-.95em;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--brand);}
.prose ol{list-style:decimal;}
.prose ol li{margin-bottom:.45em;padding-left:2px;}
.prose li{margin-bottom:.5em;}
.prose blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--brand-soft);
  border-left:4px solid var(--brand);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:var(--ink);
  font-size:16.5px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:14px;margin:24px 0 10px;}
.prose figure{margin:26px 0;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.prose a{color:var(--brand-deep);border-bottom:1px solid rgba(15,165,122,.35);transition:color var(--dur) var(--ease),border-color var(--dur) var(--ease);}
.prose a:hover{color:var(--brand);border-color:var(--brand);}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  overflow:hidden;
  border-radius:14px;
  box-shadow:0 0 0 1px var(--line);
}
.prose thead th{background:var(--brand-soft);color:var(--brand-deep);text-align:left;font-weight:700;}
.prose th,.prose td{padding:12px 16px;border-bottom:1px solid var(--line);}
.prose tbody tr:nth-child(even){background:#FAFBFA;}
.prose tbody tr:last-child td{border-bottom:0;}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0;}
.prose code{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:.92em;}

.empty-note{
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius-m);
  background:var(--surface);
}
.empty-note h3{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-note p{color:var(--muted);font-size:15px;max-width:460px;margin:0 auto 22px;}

/* ---------- 侧栏 ---------- */
.side-col{padding-top:36px;}
@media screen and (min-width:1024px){
  .side-col{padding-top:36px;padding-left:26px;}
  .side-sticky{position:sticky;top:96px;}
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:22px;
}
.side-card + .side-card{margin-top:20px;}
.side-title{font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.side-title span.link-arrow{font-size:12.5px;font-weight:600;}
.rec-list{display:grid;gap:14px;}
.rec-item{
  display:grid;
  grid-template-columns:88px 1fr;
  gap:12px;
  padding:10px;
  border-radius:var(--radius-s);
  border:1px solid var(--line);
  background:var(--surface);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.rec-item:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2);}
.rec-thumb{aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--brand-soft);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;}
.rec-body h4{font-size:14px;font-weight:600;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-meta{font-size:12px;color:var(--muted);margin-top:6px;font-family:var(--num-font);font-variant-numeric:tabular-nums;}
.entry-links{display:grid;gap:10px;}
.entry-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;border-radius:var(--radius-s);
  background:var(--bg);border:1px solid var(--line);
  font-size:14px;color:var(--ink-2);
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.entry-links a:hover{background:var(--brand-soft);border-color:rgba(15,165,122,.35);color:var(--brand-deep);}
.entry-links a svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 相关推荐区 ---------- */
.rec-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media screen and (min-width:640px){.rec-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.rec-grid{grid-template-columns:repeat(3,1fr);}}
.post-card{
  position:relative;
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.post-card::before{
  content:"";position:absolute;top:0;left:0;height:3px;width:0;background:var(--brand);
  transition:width 260ms var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(15,165,122,.35);}
.post-card:hover::before{width:100%;}
.post-thumb{aspect-ratio:16/10;background:var(--brand-soft);overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);}
.post-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px;font-size:12.5px;color:var(--muted);font-family:var(--num-font);font-variant-numeric:tabular-nums;}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:30px 32px;
  border-radius:var(--radius-m);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,165,122,.12),rgba(15,165,122,0) 70%);
  pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);font-weight:700;line-height:1.35;}
.cta-band p{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-foot{border-top:1px solid var(--line);background:#FBFCFA;margin-top:64px;padding:56px 0 26px;}
.foot-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media screen and (min-width:640px){.foot-grid{grid-template-columns:repeat(2,1fr);}}
@media screen and (min-width:1024px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px;}}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin:14px 0 16px;max-width:420px;}
.foot-contact{display:grid;gap:6px;font-size:13.5px;color:var(--muted);}
.foot-contact b{color:var(--ink-2);font-weight:600;}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--ink);}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.foot-col a:hover{color:var(--brand-deep);transform:translateX(3px);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}

/* ---------- 弹层表单 ---------- */
.lead-modal{
  position:fixed;inset:0;z-index:120;
  display:none;
  align-items:center;justify-content:center;
  padding:24px;
  background:rgba(14,21,18,.5);
}
.lead-modal.is-open{display:flex;}
.lead-card{
  position:relative;
  width:100%;max-width:520px;
  max-height:88vh;overflow-y:auto;
  background:var(--surface);
  border-radius:20px;
  padding:32px;
  box-shadow:var(--shadow-2);
  animation:popIn 220ms var(--ease);
}
.lead-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);border-radius:20px 20px 0 0;}
@keyframes popIn{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.lead-close{
  position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;
  background:var(--bg);border:1px solid var(--line);display:grid;place-items:center;
  transition:background var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.lead-close:hover{background:var(--accent-soft);transform:rotate(90deg);}
.lead-close svg{width:15px;height:15px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;}
.lead-card h3{font-size:21px;font-weight:700;margin-bottom:8px;}
.lead-card > p{font-size:14px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;font-size:15px;font-family:inherit;color:var(--ink);
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-s);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;background:var(--surface);border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,165,122,.18);
}
.field.is-error input{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,44,.16);}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--muted);line-height:1.7;margin:6px 0 18px;}
.consent input{width:17px;height:17px;margin-top:2px;accent-color:var(--brand);flex:0 0 auto;}
.lead-card .btn{width:100%;}
.form-tip{font-size:12px;color:var(--accent);margin-top:10px;display:none;}
.form-tip.is-show{display:block;}

/* ---------- 动效 ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal-up.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal-up{opacity:1;transform:none;}
  .nav-chip:hover,.post-card:hover,.rec-item:hover{transform:none;}
}

@media screen and (max-width:639px){
  .section{padding:56px 0;}
  .article-card{padding:22px 20px;}
  .prose{font-size:16px;}
  .cta-band{padding:24px 20px;}
  .lead-modal{padding:0;align-items:flex-end;}
  .lead-card{max-width:none;border-radius:20px 20px 0 0;padding:26px 20px 32px;max-height:92vh;}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --brand:#0FA57A;
  --brand-deep:#0A7A5B;
  --brand-soft:#E6F5EF;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E7;
  --ink:#0E1512;
  --ink-2:#33403A;
  --muted:#6B7A73;
  --line:#E4E9E5;
  --bg:#F7F8F5;
  --surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;
  --radius-m:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04), 0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 2px 6px rgba(14,21,18,.06), 0 20px 44px -20px rgba(14,21,18,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --sec-y:96px;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC",sans-serif;
}

/* ===== 基础 reset ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
b,strong{font-weight:700}
:focus-visible{outline:3px solid rgba(15,165,122,.45);outline-offset:2px;border-radius:6px}

/* ===== 容器与栅格覆盖 ===== */
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
.grid-margin-x{margin-left:-10px;margin-right:-10px}
.grid-margin-x>.cell{padding-left:10px;padding-right:10px}
.grid-margin-y{margin-top:-12px;margin-bottom:-12px}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px}
.section{padding:var(--sec-y) 0}
.section--tight{padding:56px 0}

/* ===== 头部导航面板 ===== */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0;
  background:rgba(247,248,245,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:padding var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.site-head.is-stuck{padding:8px 0;border-bottom-color:var(--line);box-shadow:0 10px 30px -24px rgba(14,21,18,.4)}
.head-bar{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 14px 10px 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
}
.site-head.is-stuck .head-bar{padding-top:8px;padding-bottom:8px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);
}
.brand-mark svg{width:21px;height:21px;fill:none;stroke:var(--brand-deep);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}

.head-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;
  border-radius:var(--radius-s);
  border:2px solid transparent;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink-2);
  white-space:nowrap;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.nav-chip svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.nav-chip:hover svg{transform:translateY(-2px)}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,165,122,.35)}

.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);
  transition:transform var(--dur) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;
  border-radius:var(--radius-s);
  font-size:15px;font-weight:700;line-height:1.2;
  border:1px solid transparent;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(15,165,122,.85)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(15,165,122,.9)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(14,21,18,.22)}
.btn-ghost:hover{background:var(--brand-soft);border-color:rgba(15,165,122,.4);color:var(--brand-deep)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.head-actions .btn{padding:11px 18px;font-size:14px}

/* ===== 徽章 / 标签 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:700;letter-spacing:.02em;
  background:var(--brand-soft);color:var(--brand-deep);
}
.badge-accent{background:var(--accent-soft);color:#B84510}
.tag-line{
  display:inline-block;font-family:var(--font-num);
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  margin-bottom:10px;
}

/* ===== 页面头部 ===== */
.page-head{
  padding:56px 0 24px;
  position:relative;
  overflow:hidden;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,21,18,.045) 1px, transparent 1px),linear-gradient(90deg, rgba(14,21,18,.045) 1px, transparent 1px);
  background-size:52px 52px;
  opacity:.55;
  pointer-events:none;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 82%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.9), transparent 82%);
}
.page-head .grid-container{position:relative;z-index:1}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb-sep{opacity:.55}
.crumb-cur{color:var(--ink-2);font-weight:600}
.page-head h1{
  font-size:clamp(34px,5.2vw,60px);
  font-weight:800;letter-spacing:-.02em;line-height:1.15;
  margin:14px 0 16px;
}
.page-lead{font-size:17px;color:var(--ink-2);max-width:620px;line-height:1.85}
.head-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.head-cta .btn{flex:0 0 auto}
.trust-line{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;font-size:12.5px;color:var(--muted)}
.trust-line li{display:inline-flex;align-items:center;gap:8px}
.trust-line li+li::before{content:"";display:block;width:1px;height:12px;background:var(--line);margin-right:14px}
.trust-line li+li{margin-left:0}

.head-media{
  position:relative;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-soft);
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
}
.head-media img{width:100%;height:100%;object-fit:cover}
.media-badge{
  position:absolute;right:14px;bottom:14px;
  display:inline-flex;align-items:baseline;gap:6px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(16,26,22,.86);color:#fff;
  font-size:12px;font-weight:600;
  backdrop-filter:blur(6px);
}
.media-badge b{font-family:var(--font-num);font-size:17px;font-weight:800;color:#5BE0B4}

/* ===== 板块标题 ===== */
.sec-head{margin-bottom:38px;max-width:720px}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.015em;line-height:1.25}
.sec-sub{margin-top:12px;color:var(--muted);font-size:16px}

/* ===== 准备清单卡片 ===== */
.prep-card{
  position:relative;height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:26px 24px 24px 28px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.prep-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-soft);
  transition:background var(--dur) var(--ease);
}
.prep-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.3);box-shadow:var(--shadow-2)}
.prep-card:hover::before{background:var(--accent)}
.prep-num{font-family:var(--font-num);font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--accent)}
.prep-card h3{font-size:19px;font-weight:600;margin:10px 0 10px;line-height:1.5}
.prep-card p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ===== 图文交替 ===== */
.feature-row{align-items:center;padding:34px 0}
.feature-row.is-reverse>.cell:first-child{order:2}
.feature-media{
  position:relative;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);background:var(--brand-soft);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/11;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-media .figure-note{
  position:absolute;left:14px;bottom:14px;
  padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);color:var(--ink-2);
  font-size:12px;font-weight:600;
}
.feature-body h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.015em;line-height:1.25;margin-bottom:14px}
.feature-body p{color:var(--ink-2);font-size:16.5px;line-height:1.9;margin-bottom:14px}
.feature-body p:last-of-type{margin-bottom:20px}

.tick-list{display:grid;gap:10px}
.tick-list li{
  position:relative;padding-left:22px;
  font-size:15px;color:var(--ink-2);line-height:1.75;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.68em;
  width:8px;height:8px;border-radius:2px;background:var(--brand);
}

/* ===== 信息条 ===== */
.info-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;
  margin-top:14px;
}
.info-strip>div{background:var(--surface);padding:20px 22px}
.info-strip b{display:block;font-family:var(--font-num);font-size:22px;font-weight:800;color:var(--brand-deep);letter-spacing:-.01em}
.info-strip span{font-size:13px;color:var(--muted)}

/* ===== FAQ ===== */
.faq-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;min-height:64px;
  padding:18px 26px 18px 28px;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink);
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.faq-q:hover{background:rgba(230,245,239,.5);color:var(--brand-deep)}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.faq-icon{
  position:relative;flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line);
  transition:transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px}
.faq-icon::after{width:1.6px;height:10px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--brand-soft);border-color:rgba(15,165,122,.4)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:var(--brand-deep)}
.faq-a{display:none;padding:0 26px 22px 28px}
.faq-item.is-open .faq-a{display:block}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ===== 交叉入口 ===== */
.cross-card{
  display:flex;flex-direction:column;gap:8px;
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  padding:22px 22px 20px;
  transition:transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.cross-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.3);box-shadow:var(--shadow-2);background:var(--brand-soft)}
.cross-icon{
  width:38px;height:38px;border-radius:11px;background:var(--brand-soft);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:6px;
  transition:background var(--dur) var(--ease);
}
.cross-card:hover .cross-icon{background:#fff}
.cross-icon svg{width:20px;height:20px;fill:none;stroke:var(--brand-deep);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cross-card h3{font-size:17px;font-weight:600}
.cross-card p{font-size:14px;color:var(--muted);line-height:1.75}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:auto;padding-top:12px;
  font-size:13.5px;font-weight:700;color:var(--brand-deep);
}
.arrow-link svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.arrow-link:hover{color:var(--brand)}
.arrow-link:hover svg{transform:translateX(4px)}

/* ===== CTA 条 ===== */
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:var(--radius-m);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  background:#123023;
  padding:44px 40px;
}
.cta-bar::after{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.3;
  mix-blend-mode:luminosity;
}
.cta-bar::before{
  content:"";position:absolute;right:-70px;top:-90px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;z-index:1;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.015em;line-height:1.3}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15px;margin-top:10px;max-width:560px}
.cta-inner .btn-primary{background:var(--accent);box-shadow:0 14px 30px -16px rgba(255,107,44,.9)}
.cta-inner .btn-primary:hover{background:#E85C1F}

/* ===== 页脚 ===== */
.site-foot{
  margin-top:96px;
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr 1fr 1fr;
  gap:40px 34px;
}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14.5px;color:var(--muted);line-height:1.85;max-width:380px}
.foot-contact{margin-top:20px;display:grid;gap:6px;font-size:13.5px;color:var(--muted)}
.foot-contact b{color:var(--ink-2);font-weight:700}
.foot-col h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.01em}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0}
.foot-col a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
}

/* ===== 弹层表单 ===== */
.reveal.lead-modal{
  border:0;border-radius:20px;padding:0;overflow:hidden;
  box-shadow:var(--shadow-2);
  max-width:520px;
}
.reveal.lead-modal .modal-bar{height:3px;background:var(--brand)}
.modal-body{padding:30px 30px 28px}
.reveal.lead-modal h3{font-size:22px;font-weight:700;letter-spacing:-.01em}
.modal-sub{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}
.close-button{
  position:absolute;right:16px;top:16px;z-index:3;
  width:32px;height:32px;border-radius:50%;
  background:var(--bg);color:var(--ink-2);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;
  transition:background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.close-button:hover{background:var(--brand-soft);color:var(--brand-deep)}
.lead-form{margin-top:22px;display:grid;gap:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;
  font-family:var(--font-cn);font-size:15px;color:var(--ink);
  background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-s);
  transition:border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.75}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,165,122,.18);
}
.field.is-error input,.field.is-error select{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,44,.14)}
.consent{display:flex;align-items:flex-start;gap:9px;font-size:12.5px;color:var(--muted);line-height:1.7}
.consent input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex:0 0 16px}
.form-note{font-size:12px;color:var(--muted);line-height:1.7;margin-top:2px}
.form-msg{display:none;font-size:13.5px;font-weight:600;color:var(--brand-deep);background:var(--brand-soft);border-radius:var(--radius-s);padding:11px 14px}
.form-msg.is-visible{display:block}

/* ===== 进入动效 ===== */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease), transform 420ms var(--ease)}
.reveal-up.is-in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  :root{--sec-y:72px}
  .grid-container{padding-left:20px;padding-right:20px}
  .head-nav{
    display:none;
    position:absolute;left:12px;right:12px;top:calc(100% + 10px);
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
    box-shadow:var(--shadow-2);
    padding:14px;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:10px;
  }
  .head-nav.is-open{display:grid}
  .head-nav .nav-chip{justify-content:flex-start;background:var(--bg);border-color:transparent;padding:12px 12px;font-size:13px}
  .head-nav .nav-chip.is-active{background:var(--brand-soft);border-color:rgba(15,165,122,.35)}
  .nav-toggle{display:inline-flex}
  .head-actions .btn{padding:10px 14px;font-size:13.5px}
  .brand-text{font-size:15px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px 26px}
  .page-head{padding:40px 0 18px}
  .feature-row{padding:20px 0}
  .feature-row.is-reverse>.cell:first-child{order:0}
  .feature-media{margin-bottom:8px}
  .cta-bar{padding:34px 26px}
  .reveal.lead-modal.is-bottom-sheet{top:auto}
}

@media screen and (max-width:767px){
  :root{--sec-y:56px}
  .head-bar{gap:10px;padding:9px 10px 9px 12px}
  .brand-text{max-width:132px;white-space:normal;line-height:1.25;font-size:14px}
  .head-actions .btn{display:none}
  .head-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .page-head h1{font-size:clamp(30px,8vw,40px)}
  .page-lead{font-size:15.5px}
  .head-cta .btn{flex:1 1 auto}
  .trust-line{gap:10px;font-size:12px}
  .trust-line li+li::before{display:none}
  .info-strip{grid-template-columns:1fr}
  .faq-q{padding:16px 18px 16px 20px;font-size:15.5px;min-height:56px}
  .faq-a{padding:0 18px 20px 20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;gap:8px}
  .site-foot{padding-top:48px;margin-top:64px}
  .reveal.lead-modal{width:100%;max-width:100%;border-radius:18px 18px 0 0;margin:0}
  .modal-body{padding:26px 20px 24px}
}

@media screen and (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  .head-nav{left:8px;right:8px}
  .badge{font-size:11.5px}
  .feature-body p{font-size:15.5px}
}

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

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root{
  --brand:#0FA57A;
  --brand-deep:#0A7A5B;
  --brand-soft:#E6F5EF;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E7;
  --ink:#0E1512;
  --ink-2:#33403A;
  --muted:#6B7A73;
  --line:#E4E9E5;
  --bg:#F7F8F5;
  --surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;
  --radius-m:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04), 0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 2px 6px rgba(14,21,18,.06), 0 20px 44px -20px rgba(14,21,18,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
b,strong{font-weight:700;}
:focus-visible{outline:3px solid rgba(15,165,122,.35);outline-offset:2px;border-radius:8px;}

/* ============ 容器与板块 ============ */
.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.015em;line-height:1.2;}
.sec-head p{color:var(--muted);font-size:15px;max-width:560px;}
.kicker{display:inline-block;font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;margin-bottom:10px;}

/* ============ 导航面板 ============ */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(247,248,245,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) var(--ease),background-color var(--dur) var(--ease);
}
.site-head.is-scrolled{box-shadow:0 12px 30px -24px rgba(14,21,18,.5);background:rgba(247,248,245,.95);}
.head-bar{display:flex;align-items:center;gap:18px;min-height:76px;padding:10px 0;transition:min-height var(--dur) var(--ease);}
.site-head.is-scrolled .head-bar{min-height:64px;}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 10px 22px -14px rgba(15,165,122,.9);
}
.brand-mark svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap;}

.head-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 13px;border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  border:1px solid transparent;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.nav-chip svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease);}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px);}
.nav-chip:hover svg{transform:translateY(-2px);}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);box-shadow:inset 0 0 0 2px rgba(15,165,122,.35);}

.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);align-items:center;justify-content:center;cursor:pointer;
  transition:background-color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;border-radius:2px;transition:background-color var(--dur) var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--dur) var(--ease);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮与徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:600;font-size:15px;
  padding:14px 26px;border-radius:var(--radius-s);
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(15,165,122,.95);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 18px 32px -18px rgba(15,165,122,1);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);box-shadow:inset 0 0 0 1px var(--brand);transform:translateY(-1px);}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;letter-spacing:.04em;background:var(--brand-soft);color:var(--brand-deep);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-line{background:transparent;box-shadow:inset 0 0 0 1px var(--line);color:var(--ink-2);}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep);transition:color var(--dur) var(--ease);}
.link-arrow i{font-style:normal;transition:transform var(--dur) var(--ease);}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 页头 ============ */
.page-head{padding:56px 0 24px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:wrap;margin-bottom:20px;}
.crumbs a{transition:color var(--dur) var(--ease);}
.crumbs a:hover{color:var(--brand-deep);}
.crumbs .sep{opacity:.45;}
.page-head h1{font-size:clamp(34px,5.2vw,60px);font-weight:800;letter-spacing:-.02em;line-height:1.14;margin-top:14px;}
.page-lead{margin-top:18px;max-width:720px;font-size:17px;color:var(--ink-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;font-size:12px;color:var(--muted);letter-spacing:.02em;}
.trust-row span{display:inline-flex;align-items:center;gap:14px;}
.trust-row span::after{content:"";width:1px;height:12px;background:var(--line);}
.trust-row span:last-child::after{display:none;}

/* ============ 时间线 ============ */
.timeline{position:relative;margin-top:44px;}
.timeline::before{content:"";position:absolute;left:29px;top:12px;bottom:12px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(15,165,122,.10));}
.tl-item{position:relative;display:grid;grid-template-columns:60px 1fr;gap:22px;padding-bottom:22px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  width:60px;height:60px;border-radius:18px;background:var(--surface);border:1px solid var(--line);
  display:grid;place-items:center;font-family:var(--font-num);font-weight:800;font-size:17px;
  color:var(--brand-deep);box-shadow:var(--shadow-1);position:relative;z-index:1;
  font-variant-numeric:tabular-nums;
}
.tl-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-m);padding:24px 30px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.tl-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform var(--dur) var(--ease);}
.tl-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.3);box-shadow:var(--shadow-2);}
.tl-card:hover::before{transform:scaleY(1);}
.tl-card h3{font-size:20px;font-weight:600;letter-spacing:-.01em;}
.tl-card p{margin-top:10px;font-size:15px;color:var(--ink-2);}
.tl-meta{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:12px;color:var(--muted);}
.tl-meta b{font-family:var(--font-num);font-weight:700;color:var(--brand-deep);font-variant-numeric:tabular-nums;}

/* ============ 准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px;}
.prep-card{
  position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-s);padding:26px 24px 24px;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.prep-card::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent-soft);transition:background-color var(--dur) var(--ease);}
.prep-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.3);box-shadow:var(--shadow-2);}
.prep-card:hover::after{background:var(--accent);}
.prep-card h3{font-size:17px;font-weight:600;}
.prep-card p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.8;}
.prep-index{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;color:var(--muted);display:block;margin-bottom:10px;}

/* ============ 宽幅图卡 ============ */
.wide-card{
  position:relative;border-radius:var(--radius-m);overflow:hidden;min-height:380px;
  display:flex;align-items:flex-end;
  background:#0E1512 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--shadow-1);
}
.wide-card::after{content:"";position:absolute;inset:0;background:linear-gradient(92deg,rgba(16,26,22,.94) 0%,rgba(16,26,22,.62) 58%,rgba(16,26,22,.30) 100%);}
.wide-inner{position:relative;z-index:1;padding:48px;color:#fff;max-width:640px;}
.wide-inner .kicker{color:rgba(255,255,255,.62);}
.wide-inner h2{font-size:clamp(26px,3.2vw,36px);font-weight:700;letter-spacing:-.015em;}
.wide-inner p{margin-top:16px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.9;}
.wide-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.wide-points span{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:var(--radius-pill);font-size:13px;background:rgba(255,255,255,.10);box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);}
.wide-points span::before{content:"";width:6px;height:6px;background:var(--brand);border-radius:2px;}

/* ============ 数据面板 ============ */
.stats{margin-top:24px;background:var(--panel-dark);border-radius:var(--radius-m);padding:46px 26px;display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:6px 26px;border-left:1px solid rgba(255,255,255,.12);}
.stat:first-child{border-left:0;}
.stat b{display:block;font-family:var(--font-num);font-size:clamp(34px,5vw,64px);font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--brand);font-variant-numeric:tabular-nums;}
.stat .unit{font-size:14px;font-weight:600;color:rgba(255,255,255,.66);margin-left:6px;letter-spacing:0;}
.stat .label{display:block;margin-top:14px;font-size:12px;letter-spacing:.14em;color:rgba(255,255,255,.58);}

/* ============ FAQ ============ */
.faq{margin-top:36px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:0;}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;min-height:48px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 28px;font-size:17px;font-weight:600;line-height:1.6;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand-deep);line-height:1;transition:transform var(--dur) var(--ease);}
.faq-item summary:hover{background:var(--brand-soft);}
.faq-item[open] summary{background:var(--brand-soft);color:var(--brand-deep);}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item[open] summary::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);}
.faq-body{padding:2px 28px 24px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-body b{color:var(--ink);}

/* ============ 交叉入口 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;}
.cross-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.cross-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.3);box-shadow:var(--shadow-2);}
.cross-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);}
.cross-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.cross-card:hover .cross-thumb img{transform:scale(1.04);}
.cross-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cross-body h3{font-size:19px;font-weight:600;}
.cross-body p{font-size:14px;color:var(--ink-2);line-height:1.8;flex:1;}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow-1);
}
.cta-bar::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);}
.cta-bar h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;}
.cta-bar p{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px;}

/* ============ 页脚 ============ */
.site-foot{margin-top:96px;background:var(--surface);border-top:1px solid var(--line);padding:72px 0 28px;}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);max-width:380px;line-height:1.9;}
.foot-contact{margin-top:20px;font-size:13px;color:var(--muted);line-height:2;}
.foot-contact b{color:var(--ink);font-weight:600;}
.foot-col h4{font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.foot-col a{display:block;font-size:14px;color:var(--ink-2);padding:6px 0;transition:color var(--dur) var(--ease),transform var(--dur) var(--ease);}
.foot-col a:hover{color:var(--brand-deep);transform:translateX(3px);}
.foot-bottom{margin-top:44px;padding-top:24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted);}

/* ============ 弹层 ============ */
.modal-mask{
  position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  padding:24px;background:rgba(14,21,18,.55);backdrop-filter:blur(4px);
}
.modal-mask.is-open{display:flex;}
.modal{
  position:relative;width:100%;max-width:520px;max-height:92vh;overflow-y:auto;
  background:#fff;border-radius:20px;box-shadow:0 40px 80px -34px rgba(0,0,0,.55);
  animation:modalIn 240ms var(--ease);
}
.modal::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);}
@keyframes modalIn{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.modal-head{padding:30px 30px 0;}
.modal-head h3{font-size:22px;font-weight:700;}
.modal-head p{margin-top:8px;font-size:14px;color:var(--muted);}
.modal-close{
  position:absolute;top:18px;right:18px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);background:#fff;cursor:pointer;font-size:16px;line-height:1;
  display:grid;place-items:center;color:var(--muted);
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.modal-close:hover{background:var(--brand-soft);color:var(--brand-deep);transform:rotate(90deg);}
.modal-body{padding:24px 30px 30px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:15px;color:var(--ink);
  padding:12px 14px;border-radius:var(--radius-s);border:1px solid var(--line);background:#fff;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,165,122,.18);
}
.field.has-error input,.field.has-error select{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,44,.14);}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 18px;font-size:13px;color:var(--ink-2);line-height:1.7;}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);flex:0 0 auto;}
.form-note{font-size:12px;color:var(--muted);line-height:1.8;margin-bottom:18px;}
.form-tip{font-size:12px;color:var(--accent);margin-top:8px;display:none;}
.form-tip.is-show{display:block;}

/* ============ 动效 ============ */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal-up.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .section{padding:72px 0;}
  .prep-grid{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);padding:36px 12px;}
  .stat{padding:16px 22px;border-left:0;border-top:1px solid rgba(255,255,255,.12);}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0;}
  .stat:nth-child(even){border-left:1px solid rgba(255,255,255,.12);}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .wide-inner{padding:36px 30px;}

  .head-nav{
    position:fixed;left:0;right:0;top:0;bottom:0;
    margin:0;padding:96px 22px 40px;
    display:grid;grid-template-columns:1fr 1fr;grid-auto-rows:min-content;gap:12px;
    background:rgba(247,248,245,.98);backdrop-filter:blur(12px);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
    overflow-y:auto;z-index:70;
  }
  .head-nav.is-open{opacity:1;visibility:visible;transform:none;}
  .nav-chip{justify-content:flex-start;padding:16px 14px;font-size:15px;background:var(--surface);box-shadow:var(--shadow-1);}
  .nav-toggle{display:flex;}
}

@media (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .head-bar{min-height:68px;gap:10px;}
  .brand-mark{width:34px;height:34px;border-radius:11px;}
  .brand-mark svg{width:19px;height:19px;}
  .brand-text{font-size:15px;}
  .head-actions .btn{padding:11px 14px;font-size:13px;}
  .page-head{padding:36px 0 16px;}
  .page-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .timeline::before{left:21px;}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;}
  .tl-node{width:44px;height:44px;border-radius:14px;font-size:15px;}
  .tl-card{padding:20px 20px;}
  .prep-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;padding:28px 10px;}
  .stat{border-left:0;border-top:1px solid rgba(255,255,255,.12);padding:18px 22px;}
  .stat:nth-child(2){border-top:1px solid rgba(255,255,255,.12);}
  .stat:nth-child(even){border-left:0;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .cta-bar .btn{width:100%;}
  .faq-item summary{padding:18px 20px;font-size:16px;}
  .faq-body{padding:0 20px 20px;}
  .wide-inner{padding:28px 22px;}
  .site-foot{margin-top:64px;padding:52px 0 24px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal{max-width:none;border-radius:20px 20px 0 0;max-height:94vh;animation:sheetIn 260ms var(--ease);}
  @keyframes sheetIn{from{opacity:0;transform:translateY(40px);}to{opacity:1;transform:none;}}
  .modal-head{padding:26px 20px 0;}
  .modal-body{padding:20px 20px 28px;}
}

@media (max-width:520px){
  .brand-text{font-size:14px;}
  .trust-row{gap:10px;font-size:11px;}
  .sec-head h2{font-size:24px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal-up{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --brand:#0FA57A;--brand-deep:#0A7A5B;--brand-soft:#E6F5EF;
  --accent:#FF6B2C;--accent-soft:#FFF0E7;
  --ink:#0E1512;--ink-2:#33403A;--muted:#6B7A73;
  --line:#E4E9E5;--bg:#F7F8F5;--surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;--radius-m:18px;--radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04),0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 2px 6px rgba(14,21,18,.06),0 20px 40px -18px rgba(14,21,18,.22);
  --ease:cubic-bezier(.22,.61,.36,1);--dur:200ms;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-cn);
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(15,165,122,.35);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.eyebrow{font-family:var(--font-num);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ===== 顶部卡片式导航 ===== */
.site-head{position:sticky;top:0;z-index:60;padding:12px 0;transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),padding var(--dur) var(--ease)}
.site-head::before{content:"";position:absolute;inset:0;background:rgba(247,248,245,.88);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid transparent;z-index:-1;transition:border-color var(--dur) var(--ease)}
.site-head.is-stuck{padding:6px 0}
.site-head.is-stuck::before{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(14,21,18,.4)}
.head-bar{display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-1);padding:10px 14px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--brand-soft);display:grid;place-items:center;border:1px solid rgba(15,165,122,.22)}
.brand-mark svg{width:21px;height:21px;fill:none;stroke:var(--brand-deep);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}
.head-nav{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-chip{display:inline-flex;align-items:center;gap:7px;padding:9px 13px;border-radius:var(--radius-s);font-size:13px;font-weight:600;color:var(--ink-2);border:2px solid transparent;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.nav-chip svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-2px)}
.nav-chip:hover svg{transform:translateY(-2px)}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(10,122,91,.35)}
.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--radius-s);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.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 26px;border-radius:var(--radius-s);font-size:15px;font-weight:700;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),box-shadow var(--dur) var(--ease),color var(--dur) var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(15,165,122,.85)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(10,122,91,.9)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand)}
.btn-sm{padding:11px 18px;font-size:14px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:var(--radius-pill);font-size:12px;font-weight:700;background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#B14313}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-deep)}
.arrow-link i{font-style:normal;transition:transform var(--dur) var(--ease)}
.arrow-link:hover i{transform:translateX(4px)}

/* ===== 板块 ===== */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;letter-spacing:-.01em}
.sec-head p{color:var(--muted);max-width:56ch;margin-top:10px;font-size:15.5px}

/* ===== 内页页头 ===== */
.page-hero{position:relative;overflow:hidden;padding:56px 0 8px}
.page-hero::after{content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;border-radius:50%;border:1px solid rgba(15,165,122,.10);opacity:.9;pointer-events:none}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-deep)}
.crumb span.sep{opacity:.6}
.page-hero h1{font-size:clamp(34px,5.2vw,60px);font-weight:800;letter-spacing:-.02em}
.page-lead{margin-top:18px;max-width:66ch;font-size:17px;color:var(--ink-2)}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.fact-chip{display:inline-flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);padding:8px 16px;font-size:13px;color:var(--ink-2);box-shadow:var(--shadow-1)}
.fact-chip b{font-family:var(--font-num);font-size:15px;color:var(--brand-deep)}

/* ===== 宽幅图卡 ===== */
.wide-visual{position:relative;margin:0;border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);aspect-ratio:21/9;background:var(--brand-soft)}
.wide-visual img{width:100%;height:100%;object-fit:cover}
.wide-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,26,22,.82) 0%,rgba(16,26,22,.52) 48%,rgba(16,26,22,.18) 100%)}
.wide-caption{position:absolute;left:0;bottom:0;padding:34px 38px;z-index:2;max-width:640px;color:#fff}
.wide-caption .badge{background:rgba(255,255,255,.16);color:#fff;backdrop-filter:blur(4px)}
.wide-caption h2{font-size:clamp(22px,2.6vw,32px);color:#fff;margin:14px 0 10px;letter-spacing:-.01em}
.wide-caption p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.86)}
.visual-badge{position:absolute;right:26px;bottom:26px;z-index:2;background:rgba(255,255,255,.94);border-radius:var(--radius-s);padding:12px 18px;text-align:center;box-shadow:var(--shadow-1)}
.visual-badge b{display:block;font-family:var(--font-num);font-size:24px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em}
.visual-badge span{font-size:12px;color:var(--muted)}

/* ===== 规格矩阵 ===== */
.spec-list{margin-top:40px;border-top:1px solid var(--line)}
.spec-card{display:grid;grid-template-columns:1.05fr 1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-bottom:0;transition:box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.spec-card:first-child{border-radius:var(--radius-m) var(--radius-m) 0 0}
.spec-card:last-child{border-bottom:1px solid var(--line);border-radius:0 0 var(--radius-m) var(--radius-m)}
.spec-card:hover{border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2);position:relative;z-index:1}
.spec-left{padding:32px;border-right:1px solid var(--line)}
.spec-left .spec-index{font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand)}
.spec-left h3{margin:12px 0 12px;font-size:21px;font-weight:700}
.spec-left p{color:var(--ink-2);font-size:15.5px;line-height:1.85}
.spec-right{padding:26px 32px;background:linear-gradient(180deg,rgba(230,245,239,.35),rgba(230,245,239,0))}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px dashed var(--line)}
.spec-row:last-child{border-bottom:0}
.spec-row dt{font-size:13.5px;color:var(--muted);flex:0 0 auto}
.spec-row dd{margin:0;font-size:14.5px;font-weight:600;color:var(--ink);text-align:right;font-family:var(--font-num);letter-spacing:.01em}

/* ===== 参数对照表 ===== */
.table-wrap{margin-top:36px;border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;background:var(--surface);box-shadow:var(--shadow-1)}
table.spec-table{width:100%;border-collapse:collapse;font-size:14.5px}
table.spec-table caption{text-align:left;padding:20px 24px 12px;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:var(--font-num)}
table.spec-table th,table.spec-table td{padding:14px 20px;text-align:left;border:0}
table.spec-table thead th{font-size:13px;color:var(--brand-deep);background:var(--brand-soft);font-weight:700;white-space:nowrap}
table.spec-table tbody tr:nth-child(odd){background:#FBFCFA}
table.spec-table tbody tr:hover{background:var(--brand-soft)}
table.spec-table tbody th{font-weight:600;color:var(--ink)}
table.spec-table td{color:var(--ink-2);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ===== 场景卡 ===== */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.scene-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2)}
.scene-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.scene-body{padding:24px}
.scene-body h3{font-size:18px;margin-bottom:10px}
.scene-body p{font-size:14.5px;color:var(--ink-2)}

/* ===== FAQ ===== */
.faq-card{margin-top:34px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform var(--dur) var(--ease)}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 26px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);min-height:48px}
.faq-q i{font-style:normal;font-size:22px;font-weight:400;color:var(--brand);transition:transform var(--dur) var(--ease)}
.faq-item.is-open .faq-q i{transform:rotate(45deg)}
.faq-a{display:none;padding:0 26px 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-item.is-open .faq-a{display:block}

/* ===== 交叉入口 ===== */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.cross-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-s);padding:22px 24px;transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.cross-card:hover{transform:translateY(-3px);background:var(--brand-soft);border-color:rgba(15,165,122,.4)}
.cross-card .c-ico{width:38px;height:38px;border-radius:11px;background:var(--brand-soft);display:grid;place-items:center;margin-bottom:14px}
.cross-card:hover .c-ico{background:#fff}
.cross-card .c-ico svg{width:20px;height:20px;fill:none;stroke:var(--brand-deep);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cross-card h3{font-size:17px;margin-bottom:8px}
.cross-card p{font-size:14px;color:var(--muted);margin-bottom:14px}

/* ===== CTA 条 ===== */
.cta-bar{margin:0 0 8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-1);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;position:relative;overflow:hidden}
.cta-bar::before{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--brand)}
.cta-bar h3{font-size:clamp(20px,2.2vw,26px)}
.cta-bar p{margin-top:10px;color:var(--muted);font-size:15px;max-width:62ch}

/* ===== 表单弹层 ===== */
.modal{position:fixed;inset:0;z-index:90;display:none}
.modal.is-open{display:block}
.modal-backdrop{position:absolute;inset:0;background:rgba(14,21,18,.55)}
.modal-card{position:relative;z-index:1;width:calc(100% - 40px);max-width:560px;margin:6vh auto;background:var(--surface);border-radius:20px;box-shadow:var(--shadow-2);padding:34px 32px 30px;border-top:3px solid var(--brand);animation:modalIn .24s var(--ease)}
@keyframes modalIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.modal-close{position:absolute;right:16px;top:16px;width:32px;height:32px;border-radius:50%;background:#F1F4F1;color:var(--ink-2);font-size:17px;display:grid;place-items:center}
.modal-close:hover{background:var(--brand-soft);color:var(--brand-deep)}
.modal-card h3{font-size:22px}
.modal-sub{margin-top:10px;color:var(--muted);font-size:14.5px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:var(--radius-s);padding:12px 14px;background:#FBFCFA;color:var(--ink);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),background var(--dur) var(--ease)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(15,165,122,.18)}
.field input.is-error,.field select.is-error{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,44,.16)}
.field textarea{resize:vertical;min-height:88px}
.consent{display:flex;align-items:flex-start;gap:10px;margin-top:20px;font-size:12px;color:var(--muted);line-height:1.7}
.consent input{margin-top:3px;width:16px;height:16px;accent-color:var(--brand)}
.form-foot{margin-top:20px}
.form-foot .btn{width:100%}
.form-tip{margin-top:12px;font-size:12px;color:var(--muted)}
.form-ok{display:none;margin-top:16px;padding:14px 16px;border-radius:var(--radius-s);background:var(--brand-soft);color:var(--brand-deep);font-size:14px;font-weight:600}

/* ===== 页脚 ===== */
.site-foot{margin-top:96px;background:var(--surface);border-top:1px solid var(--line);padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.foot-brand p{margin-top:16px;color:var(--muted);font-size:14.5px;max-width:38ch}
.foot-contact{margin-top:18px;font-size:13.5px;color:var(--muted)}
.foot-contact b{color:var(--ink-2);font-family:var(--font-num)}
.foot-col h4{font-size:14px;margin-bottom:14px;color:var(--ink)}
.foot-col a{display:block;font-size:14px;color:var(--muted);padding:6px 0}
.foot-col a:hover{color:var(--brand-deep)}
.foot-bottom{margin-top:44px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}

/* ===== 动效 ===== */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity 260ms var(--ease),transform 260ms var(--ease)}
.reveal-up.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal-up{opacity:1;transform:none}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .head-nav{position:fixed;left:16px;right:16px;top:76px;display:none;grid-template-columns:1fr 1fr;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-2);padding:16px;max-height:calc(100vh - 110px);overflow:auto;z-index:70}
  .head-nav.is-open{display:grid}
  .nav-chip{width:100%;justify-content:flex-start;border-width:1px;border-color:var(--line)}
  .nav-toggle{display:flex}
  .spec-card{grid-template-columns:1fr}
  .spec-left{border-right:0;border-bottom:1px solid var(--line)}
  .scene-grid,.cross-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .wide-visual{aspect-ratio:16/9}
  .wide-caption{padding:26px 26px}
}
@media (max-width:767px){
  .head-bar{gap:12px;padding:9px 12px}
  .brand-text{font-size:14.5px}
  .page-hero{padding:36px 0 0}
  .site-foot{margin-top:72px;padding-top:48px}
}
@media (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .scene-grid,.cross-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .wide-visual{aspect-ratio:4/3}
  .wide-caption{padding:20px;max-width:100%}
  .visual-badge{right:16px;bottom:16px;padding:9px 13px}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-bar .btn{width:100%}
  .modal-card{width:100%;max-width:none;margin:auto;position:absolute;left:0;right:0;bottom:0;border-radius:20px 20px 0 0;padding:26px 20px 24px;max-height:92vh;overflow:auto;animation:sheetIn .26s var(--ease)}
  @keyframes sheetIn{from{transform:translateY(100%)}to{transform:none}}
  .form-grid{grid-template-columns:1fr}
  table.spec-table{font-size:13px}
  table.spec-table th,table.spec-table td{padding:11px 12px}
  .table-wrap{overflow-x:auto}
}

/* roulang page: category4 */
:root{
  --brand:#0FA57A;
  --brand-deep:#0A7A5B;
  --brand-soft:#E6F5EF;
  --accent:#FF6B2C;
  --accent-soft:#FFF0E7;
  --ink:#0E1512;
  --ink-2:#33403A;
  --muted:#6B7A73;
  --line:#E4E9E5;
  --bg:#F7F8F5;
  --surface:#FFFFFF;
  --panel-dark:#101A16;
  --radius-s:12px;
  --radius-m:18px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(14,21,18,.04),0 8px 24px -12px rgba(14,21,18,.10);
  --shadow-2:0 2px 6px rgba(14,21,18,.06),0 20px 44px -18px rgba(14,21,18,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:200ms;
  --sec:96px;
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Barlow Semi Condensed",-apple-system,"PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.15em}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(15,165,122,.35);outline-offset:2px;border-radius:4px}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* ---------- 导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(247,248,245,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.site-head.is-scrolled{border-bottom-color:var(--line)}
.head-bar{
  display:flex;align-items:center;gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:12px 18px;
  margin:14px 0;
  transition:padding var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-head.is-scrolled .head-bar{padding:8px 18px;box-shadow:var(--shadow-2)}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.head-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:var(--radius-s);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.nav-chip svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--dur) var(--ease)}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand-deep)}
.nav-chip:hover svg{transform:translateY(-2px)}
.nav-chip.is-active{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,165,122,.45)}
.head-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);cursor:pointer;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:12px;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease)}
.nav-toggle span{top:20px}
.nav-toggle span::before{top:-6px;left:0}
.nav-toggle span::after{top:6px;left:0}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-s);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -14px rgba(15,165,122,.9)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(10,122,91,.85)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:disabled,.btn-primary[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:rgba(15,165,122,.4)}
.btn-sm{padding:11px 20px;font-size:14px}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-deep)}
.arrow-link i{font-style:normal;transition:transform var(--dur) var(--ease)}
.arrow-link:hover i{transform:translateX(4px)}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:calc(var(--sec) * .6) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600;font-family:var(--font-num)}
h1{font-size:clamp(34px,5.2vw,56px);font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.18}
h2{font-size:clamp(26px,3.4vw,38px);font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.3}
h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.5}
.lead{font-size:17px;color:var(--ink-2);max-width:60ch}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:var(--radius-pill);font-size:12px;font-weight:600;background:var(--brand-soft);color:var(--brand-deep)}
.badge-accent{background:var(--accent-soft);color:#C94F17}

/* ---------- 页头 ---------- */
.page-head{padding:52px 0 24px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand-deep)}
.crumb span.sep{opacity:.6}
.page-head-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.page-head h1{margin-bottom:18px}
.page-head .lead{margin-bottom:26px}
.head-figure{
  position:relative;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--brand-soft);
  aspect-ratio:4/3;
}
.head-figure img{width:100%;height:100%;object-fit:cover}
.head-figure .float-badge{
  position:absolute;right:16px;bottom:16px;
  background:rgba(255,255,255,.94);border-radius:14px;padding:10px 16px;
  box-shadow:var(--shadow-1);text-align:right;line-height:1.35;
}
.head-figure .float-badge b{display:block;font-size:22px;color:var(--ink);font-family:var(--font-num);font-weight:800}
.head-figure .float-badge span{font-size:11.5px;color:var(--muted);letter-spacing:.06em}
.head-figure .corner-badge{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);border-radius:var(--radius-pill);padding:6px 14px;font-size:12px;font-weight:600;color:var(--brand-deep)}

/* ---------- 速览条 ---------- */
.facts{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.fact{padding:26px 24px;border-right:1px solid var(--line)}
.fact:last-child{border-right:0}
.fact b{display:block;font-family:var(--font-num);font-size:clamp(30px,4vw,42px);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.fact b em{font-style:normal;font-size:14px;color:var(--brand);margin-left:4px;font-weight:700}
.fact span{display:block;margin-top:6px;font-size:12.5px;color:var(--muted);letter-spacing:.04em}

/* ---------- 对比卡 2×2 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.compare-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-m);box-shadow:var(--shadow-1);padding:28px 26px 26px;
  overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.compare-card::before{
  content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--brand);
  transition:width 320ms var(--ease);
}
.compare-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2)}
.compare-card:hover::before{width:100%}
.compare-card h3{margin:14px 0 6px;font-size:19px}
.compare-card .sub{font-size:14px;color:var(--muted);margin-bottom:18px}
.compare-row{display:flex;gap:12px;padding:13px 0;border-top:1px dashed var(--line)}
.compare-row .tag{
  flex:0 0 78px;font-size:12px;font-weight:700;border-radius:var(--radius-pill);
  text-align:center;padding:4px 0;height:26px;line-height:18px;
}
.tag-self{background:var(--brand-soft);color:var(--brand-deep)}
.tag-help{background:var(--accent-soft);color:#C94F17}
.compare-row p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item:last-child{border-bottom:0}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--brand)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:56px;
  display:flex;align-items:center;
  padding:18px 56px 18px 26px;
  font-size:16.5px;font-weight:600;color:var(--ink);
  position:relative;transition:color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;
  font-family:var(--font-num);font-size:24px;font-weight:400;color:var(--muted);
  transform:translateY(-50%);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);
}
.faq-item[open] summary{color:var(--brand-deep)}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);color:var(--brand)}
.faq-item summary:hover{background:#FAFBF9}
.faq-answer{padding:0 56px 22px 26px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.faq-answer b{color:var(--ink)}

/* ---------- 服务通道 ---------- */
.channel-grid{display:grid;grid-template-columns:6fr 6fr;gap:28px;align-items:stretch}
.channel-media{position:relative;border-radius:var(--radius-m);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--brand-soft);min-height:280px}
.channel-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.channel-list{display:grid;gap:16px}
.channel-card{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-s);
  padding:20px 22px;box-shadow:0 1px 2px rgba(14,21,18,.03);
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)
}
.channel-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2)}
.channel-icon{width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center}
.channel-icon svg{width:22px;height:22px;fill:none;stroke:var(--brand-deep);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.channel-card h3{font-size:17px;margin-bottom:4px}
.channel-card p{font-size:14px;color:var(--muted);margin:0}

/* ---------- 交叉入口 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cross-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:26px 24px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)
}
.cross-card::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--brand);
  transition:width 320ms var(--ease);
}
.cross-card:hover{transform:translateY(-3px);border-color:rgba(15,165,122,.35);box-shadow:var(--shadow-2)}
.cross-card:hover::after{width:100%}
.cross-card h3{font-size:18px;margin:12px 0 8px}
.cross-card p{font-size:14px;color:var(--muted);margin-bottom:16px}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);padding:34px 36px;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand)}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:8px}
.cta-band p{font-size:15px;color:var(--muted);margin:0}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--surface);border-top:1px solid var(--line);margin-top:calc(var(--sec) * .6);padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand p{font-size:14px;color:var(--muted);margin:16px 0 18px;max-width:44ch}
.foot-contact{font-size:13.5px;color:var(--muted);display:grid;gap:6px}
.foot-contact b{color:var(--ink-2)}
.foot-col h4{font-size:14px;color:var(--ink);margin-bottom:16px;font-weight:700}
.foot-col a{display:block;font-size:14px;color:var(--muted);margin-bottom:11px}
.foot-col a:hover{color:var(--brand-deep)}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
}

/* ---------- 弹层 ---------- */
.lead-modal{
  position:fixed;inset:0;z-index:120;display:none;
  align-items:center;justify-content:center;padding:24px;
}
.lead-modal.is-open{display:flex}
.lead-modal .mask{position:absolute;inset:0;background:rgba(14,21,18,.5);backdrop-filter:blur(2px)}
.modal-card{
  position:relative;width:100%;max-width:520px;background:var(--surface);
  border-radius:20px;box-shadow:var(--shadow-2);padding:34px 32px 28px;
  border-top:3px solid var(--brand);max-height:90vh;overflow:auto;
  animation:popIn 240ms var(--ease);
}
@keyframes popIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.modal-close{
  position:absolute;right:16px;top:16px;width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);background:var(--surface);cursor:pointer;
  font-size:18px;line-height:1;color:var(--muted);
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease)
}
.modal-close:hover{background:var(--brand-soft);color:var(--brand-deep)}
.modal-card h3{font-size:21px;margin-bottom:6px}
.modal-card .modal-sub{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-s);
  background:#FCFDFC;font-size:15px;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease)
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,165,122,.18);background:#fff
}
.privacy{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--muted);margin:6px 0 18px}
.privacy input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand)}
.modal-card .btn{width:100%}

/* ---------- 动效 ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease)}
.reveal-up.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:72px}
  .head-nav{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
    box-shadow:var(--shadow-2);padding:14px;
    display:none;grid-template-columns:repeat(2,1fr);gap:10px;
  }
  body.nav-open .head-nav{display:grid}
  .nav-toggle{display:inline-block}
  .head-bar{position:relative;margin:12px 0}
  .page-head-grid{grid-template-columns:1fr;gap:28px}
  .facts{grid-template-columns:repeat(2,1fr)}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(1),.fact:nth-child(2){border-bottom:1px solid var(--line)}
  .channel-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr;gap:16px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--sec:56px}
  .head-nav{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .section-head{align-items:flex-start}
  .page-head{padding-top:34px}
}
@media (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .brand-text{font-size:15px}
  .head-actions .btn-primary{display:none}
  .facts{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--line)}
  .fact:last-child{border-bottom:0}
  .faq-item summary{padding:16px 48px 16px 20px;font-size:15.5px}
  .faq-answer{padding:0 48px 20px 20px}
  .cta-band{padding:26px 22px}
  .foot-grid{grid-template-columns:1fr}
  .lead-modal{padding:0;align-items:flex-end}
  .modal-card{border-radius:20px 20px 0 0;max-height:92vh;animation:slideUp 260ms var(--ease)}
  @keyframes slideUp{from{transform:translateY(30px);opacity:.6}to{transform:translateY(0);opacity:1}}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal-up{opacity:1;transform:none}
}