/* roulang page: index */
:root{
  --ink:#0F2A24;
  --ink-deep:#0B1714;
  --accent:#FF5A36;
  --celadon:#7FD8C3;
  --celadon-soft:#E4F6F0;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --border:#E4DED2;
  --text:#202825;
  --muted:#66736F;
  --success:#2E9D74;
  --warning:#D98A2B;
  --danger:#C7493A;
  --radius-s:14px;
  --radius-m:20px;
  --radius-l:28px;
  --radius-pill:999px;
  --shadow:0 20px 60px rgba(15,42,36,.08);
  --shadow-hover:0 28px 80px rgba(15,42,36,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.03em;line-height:1.14;color:var(--ink);}
p{margin:0;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}
::selection{background:var(--celadon);color:var(--ink-deep);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--dark{background:var(--ink);color:#EDF3F0;}
.section--dark h2,.section--dark h3{color:#F4FBF8;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section-title{font-size:clamp(28px,3.4vw,44px);margin-bottom:18px;}
.section-lead{color:var(--muted);font-size:17px;max-width:760px;}
.section--dark .section-lead{color:#B9CBC4;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;transition:all .3s var(--ease);white-space:nowrap;
}
.btn svg{transition:transform .3s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 14px 34px rgba(255,90,54,.26);}
.btn-primary:hover{background:#F04A26;color:#fff;box-shadow:0 20px 44px rgba(255,90,54,.34);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#14413A;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-ghost{border-color:var(--border);color:var(--ink);background:rgba(255,255,255,.6);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px);}
.btn-block{width:100%;}
.btn:disabled{opacity:.5;pointer-events:none;}

/* ===== 顶部状态条 ===== */
.topbar{
  background:var(--ink-deep);color:#C9DBD4;font-size:13px;
  letter-spacing:.01em;
}
.topbar .container{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;min-height:32px;padding-top:4px;padding-bottom:4px;}
.topbar-left{display:flex;align-items:center;gap:10px;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--celadon);box-shadow:0 0 0 4px rgba(127,216,195,.18);}
.topbar-right{display:flex;gap:18px;color:#8FA8A0;}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,243,234,.88);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 34px rgba(15,42,36,.09);background:rgba(247,243,234,.96);}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:17px;letter-spacing:-.02em;color:var(--ink);flex-shrink:0;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--ink);
  display:grid;place-items:center;flex-shrink:0;transition:transform .3s var(--ease);
}
.logo:hover .logo-mark{transform:translateY(-2px) rotate(-4deg);}
.logo-mark svg{width:16px;height:16px;fill:var(--celadon);}
.logo-text{white-space:nowrap;}
.logo-text span{color:var(--accent);}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;color:#2C3B36;transition:all .25s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover{background:rgba(127,216,195,.16);transform:translateY(-1px);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{background:var(--celadon-soft);color:var(--ink);}

.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);
  padding:8px 16px;min-width:190px;transition:all .25s var(--ease);
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 8px 24px rgba(15,42,36,.08);}
.search-box svg{width:15px;height:15px;fill:var(--muted);flex-shrink:0;}
.search-box input{border:none;outline:none;background:transparent;width:100%;font-size:14px;}
.search-box input::placeholder{color:#9AA6A1;}

.burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;place-items:center;}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

.mobile-drawer{
  position:fixed;inset:0;z-index:120;background:rgba(11,23,20,.55);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.mobile-drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(360px,88vw);height:100%;
  background:var(--bg);padding:26px 22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(12px);transition:transform .35s var(--ease);overflow-y:auto;
}
.mobile-drawer.open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px;}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;font-size:20px;line-height:1;color:var(--ink);}
.drawer-panel a.drawer-link{
  padding:14px 16px;border-radius:var(--radius-s);border:1px solid var(--border);
  background:#fff;font-weight:600;font-size:15px;color:var(--ink);
}
.drawer-panel a.drawer-link:hover{border-color:var(--ink);transform:translateY(-1px);}
.drawer-panel .drawer-cta{margin-top:12px;display:grid;gap:10px;}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 96px;
  background:
    radial-gradient(900px 520px at 88% -10%,rgba(127,216,195,.34),transparent 62%),
    repeating-linear-gradient(115deg,rgba(15,42,36,.045) 0 1px,transparent 1px 13px),
    linear-gradient(180deg,#FBF8F1 0%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);
  font-size:13px;font-weight:700;color:var(--ink);margin-bottom:22px;box-shadow:var(--shadow);
}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--success);display:block;}
.hero h1{font-size:clamp(34px,4.6vw,62px);line-height:1.08;margin-bottom:22px;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:17.5px;color:#48544F;max-width:600px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:620px;}
.hero-points div{border-left:2px solid var(--celadon);padding-left:14px;}
.hero-points strong{display:block;font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.hero-points span{font-size:13.5px;color:var(--muted);}

.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3.4;object-fit:cover;border-radius:var(--radius-l);
  box-shadow:var(--shadow-hover);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-l);
  background:linear-gradient(200deg,rgba(15,42,36,0) 45%,rgba(15,42,36,.32) 100%);
  pointer-events:none;
}
.hero-card{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-m);
  padding:18px 20px;box-shadow:var(--shadow);min-width:210px;
}
.hero-card b{display:block;font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.06em;}
.hero-card strong{font-size:26px;font-weight:800;color:var(--ink);letter-spacing:-.02em;}
.hero-card small{display:block;font-size:13px;color:var(--success);font-weight:700;margin-top:4px;}

/* ===== 标签条 ===== */
.tagstrip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:#FFFDF8;}
.tagstrip .container{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-top:20px;padding-bottom:20px;}
.tagstrip .label{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.08em;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);
  font-size:13.5px;font-weight:600;color:#38443F;transition:all .25s var(--ease);
}
.chip:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow);color:var(--ink);}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--celadon);display:block;}

/* ===== 服务区块 ===== */
.service-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start;}
.service-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.service-card{
  position:relative;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-m);padding:28px 26px;
  transition:all .32s var(--ease);overflow:hidden;
}
.service-card:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.service-num{
  font-family:"Inter","DIN Alternate",sans-serif;font-size:13px;font-weight:800;
  letter-spacing:.14em;color:var(--accent);margin-bottom:16px;
}
.service-card h3{font-size:19.5px;margin-bottom:10px;}
.service-card p{color:var(--muted);font-size:15px;}
.service-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:14px;font-weight:700;color:var(--ink);
}
.service-more svg{width:14px;height:14px;fill:currentColor;transition:transform .3s var(--ease);}
.service-card:hover .service-more svg{transform:translateX(4px);}
.service-card:hover .service-more{color:var(--accent);}

/* ===== 数据带 ===== */
.stats{
  background:
    repeating-linear-gradient(45deg,rgba(127,216,195,.08) 0 1px,transparent 1px 16px),
    radial-gradient(700px 400px at 15% 0%,rgba(127,216,195,.16),transparent 60%),
    var(--ink);
  color:#E9F2EE;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;}
.stat{padding:8px 0;border-left:1px solid rgba(127,216,195,.24);padding-left:22px;}
.stat b{
  display:block;font-family:"Inter","DIN Alternate",sans-serif;
  font-size:clamp(40px,5vw,68px);font-weight:800;letter-spacing:-.04em;
  color:#fff;line-height:1;
}
.stat b i{font-style:normal;font-size:.5em;color:var(--celadon);margin-left:4px;}
.stat span{display:block;margin-top:14px;font-size:15.5px;font-weight:700;color:#DDEBE6;}
.stat p{margin-top:6px;font-size:13.5px;color:#93A9A2;line-height:1.7;}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:52px;}
.flow-step{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-m);
  padding:26px 24px;position:relative;transition:all .32s var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--ink);}
.flow-step .idx{
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:var(--celadon-soft);color:var(--ink);font-weight:800;font-size:14px;margin-bottom:16px;
}
.flow-step h3{font-size:17.5px;margin-bottom:9px;}
.flow-step p{font-size:14.5px;color:var(--muted);}
.flow-line{position:relative;}
.flow-line::before{
  content:"";position:absolute;top:-26px;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,var(--border) 0 8px,transparent 8px 16px);
}

/* ===== 案例 ===== */
.case-layout{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:stretch;margin-top:48px;}
.case-main{
  position:relative;border-radius:var(--radius-l);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow);background:#000;
}
.case-main img{width:100%;height:100%;min-height:380px;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease);}
.case-main:hover img{transform:scale(1.03);}
.case-main figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:28px;
  background:linear-gradient(180deg,rgba(11,23,20,0),rgba(11,23,20,.86));
  color:#fff;
}
.case-main figcaption strong{display:block;font-size:20px;font-weight:800;margin-bottom:8px;}
.case-main figcaption span{font-size:14px;color:#C6D8D2;}
.case-list{display:flex;flex-direction:column;gap:16px;}
.case-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-m);
  padding:20px;transition:all .3s var(--ease);
}
.case-item:hover{border-color:var(--ink);transform:translateX(3px);box-shadow:var(--shadow);}
.case-item .thumb{width:64px;height:64px;border-radius:16px;object-fit:cover;flex-shrink:0;}
.case-item h3{font-size:16.5px;margin-bottom:6px;}
.case-item p{font-size:14px;color:var(--muted);}

/* ===== 资讯列表（CMS） ===== */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:48px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-m);
  overflow:hidden;transition:all .32s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--ink);color:inherit;}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--celadon-soft);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--celadon-soft);color:#1C4E44;font-size:12.5px;font-weight:700;
}
.news-body h3{font-size:19px;line-height:1.4;}
.news-body p{font-size:14.5px;color:var(--muted);flex:1;}
.news-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--accent);}
.news-link svg{width:14px;height:14px;fill:currentColor;transition:transform .3s var(--ease);}
.news-card:hover .news-link svg{transform:translateX(4px);}

.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  background:var(--card);border:1px dashed var(--border);border-radius:var(--radius-m);
}
.empty-state .ico{
  width:56px;height:56px;border-radius:18px;background:var(--celadon-soft);
  display:grid;place-items:center;margin:0 auto 18px;
}
.empty-state .ico svg{width:24px;height:24px;fill:var(--ink);}
.empty-state strong{display:block;font-size:18px;color:var(--ink);margin-bottom:8px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:52px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-m);
  overflow:hidden;transition:all .3s var(--ease);
}
.faq-item[open]{border-color:var(--ink);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:18px;font-weight:700;color:var(--ink);transition:color .25s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--accent);}
.faq-item summary .plus{
  width:26px;height:26px;flex-shrink:0;border-radius:9px;background:var(--celadon-soft);
  display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--ink);transition:transform .3s var(--ease);
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-answer{padding:0 26px 24px;color:#4E5A55;font-size:16px;line-height:1.85;}

/* ===== 联系 ===== */
.contact-wrap{
  display:grid;grid-template-columns:7fr 5fr;gap:36px;align-items:start;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-l);
  padding:44px;box-shadow:var(--shadow);margin-top:44px;
}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:14px;font-weight:700;color:var(--ink);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-s);
  background:#FCFAF5;padding:14px 16px;font-size:15px;outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.field textarea{min-height:132px;resize:vertical;line-height:1.75;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);background:#fff;box-shadow:0 0 0 4px rgba(127,216,195,.28);
}
.field .hint{font-size:12.5px;color:var(--muted);}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.form-msg{margin-top:14px;font-size:14px;font-weight:700;display:none;}
.form-msg.ok{display:block;color:var(--success);}
.form-msg.err{display:block;color:var(--danger);}

.info-card{background:var(--ink);border-radius:var(--radius-m);padding:32px 28px;color:#DCE9E4;}
.info-card h3{color:#fff;font-size:20px;margin-bottom:16px;}
.info-card li{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid rgba(127,216,195,.18);font-size:14.5px;}
.info-card li:last-child{border-bottom:none;}
.info-card li b{color:#fff;display:block;font-size:14.5px;margin-bottom:2px;}
.info-card li span{color:#9EB4AD;font-size:13.5px;}
.info-card .tag{
  display:inline-flex;margin-top:20px;padding:8px 16px;border-radius:var(--radius-pill);
  background:rgba(127,216,195,.16);color:var(--celadon);font-size:13px;font-weight:700;
}

/* ===== CTA ===== */
.cta-band{
  background:
    radial-gradient(600px 320px at 90% 10%,rgba(255,90,54,.24),transparent 60%),
    linear-gradient(135deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-radius:var(--radius-l);padding:52px 48px;color:#fff;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);max-width:620px;}
.cta-band p{color:#B6C8C2;margin-top:12px;font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-deep);color:#93A9A2;padding:76px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 3fr;gap:42px;padding-bottom:52px;}
.site-footer h4{color:#fff;font-size:15px;letter-spacing:.06em;margin-bottom:18px;font-weight:800;}
.site-footer .brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-weight:900;font-size:16.5px;}
.site-footer .brand .logo-mark{background:var(--celadon);}
.site-footer .brand .logo-mark svg{fill:var(--ink-deep);}
.site-footer p{font-size:14.5px;line-height:1.85;color:#8FA39C;max-width:330px;}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a{font-size:14.5px;color:#B4C6C0;transition:all .25s var(--ease);display:inline-block;}
.site-footer ul a:hover{color:var(--celadon);transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(127,216,195,.16);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:#7A8E88;
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid rgba(127,216,195,.3);color:#CBE0D9;font-size:13.5px;font-weight:700;
  transition:all .25s var(--ease);
}
.to-top:hover{border-color:var(--celadon);color:var(--celadon);transform:translateY(-2px);}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .container{padding:0 22px;}
  .hero-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .service-layout,.faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .search-box{display:none;}
  .burger{display:grid;}
  .section{padding:76px 0;}
  .hero{padding:64px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/10;}
  .hero-card{left:16px;bottom:16px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .case-layout{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .contact-wrap{grid-template-columns:1fr;padding:32px 26px;}
  .cta-band{padding:40px 30px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:58px 0;}
  .service-grid{grid-template-columns:1fr;}
  .hero-points{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
  .hero-points strong{font-size:18px;}
  .hero-actions .btn{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .topbar-right{display:none;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:32px;}
  .hero-points{grid-template-columns:1fr 1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .faq-item summary{font-size:16.5px;padding:18px 20px;}
  .faq-answer{padding:0 20px 20px;}
  .news-body{padding:20px;}
  .service-card{padding:22px;}
  .cta-band{padding:32px 22px;border-radius:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --ink:#0F2A24;
  --ink-deep:#0B1714;
  --accent:#FF5A36;
  --mint:#7FD8C3;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --border:#E4DED2;
  --text:#202825;
  --muted:#66736F;
  --ok:#2E9D74;
  --warn:#D98A2B;
  --err:#C7493A;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --sh-1:0 20px 60px rgba(15,42,36,.08);
  --sh-2:0 28px 80px rgba(15,42,36,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.03em;line-height:1.12;font-weight:800;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(247,243,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  box-shadow:0 6px 24px rgba(15,42,36,.05);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:900;font-size:17px;letter-spacing:-.02em;color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;
  border-radius:11px;
  background:var(--ink);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:17px;height:17px;fill:var(--mint);}

.nav-links{
  display:flex;align-items:center;gap:4px;
  margin-left:8px;flex:1 1 auto;
}
.nav-links a{
  position:relative;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--ink);font-weight:500;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:rgba(127,216,195,.22);transform:translateY(-1px);color:var(--ink);}
.nav-links a.active{background:rgba(127,216,195,.26);font-weight:700;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--accent);border-radius:2px;
}

.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-pill);
  padding:8px 14px;min-width:180px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--mint);box-shadow:0 0 0 3px rgba(127,216,195,.28);}
.search-box svg{width:15px;height:15px;fill:var(--muted);flex:0 0 15px;}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:var(--muted);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  padding:12px 24px;font-size:15px;font-weight:700;cursor:pointer;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  text-align:center;
}
.btn svg{width:15px;height:15px;fill:currentColor;transition:transform .22s var(--ease);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 30px rgba(255,90,54,.28);}
.btn-primary:hover{background:#F04A26;color:#fff;transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,90,54,.36);}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-soft{background:#fff;color:var(--ink);border-color:var(--border);}
.btn-soft:hover{border-color:var(--mint);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{border-bottom:1px solid var(--border);background:rgba(255,255,255,.5);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);padding:14px 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#B9C2BE;}
.crumb .cur{color:var(--ink);font-weight:600;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:84px 0 92px;
  background:
    linear-gradient(180deg,rgba(247,243,234,.4),rgba(247,243,234,.95)),
    repeating-linear-gradient(115deg,rgba(15,42,36,.045) 0 1px,transparent 1px 22px);
  overflow:hidden;
}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(127,216,195,.24);color:var(--ink);
  border-radius:var(--r-pill);padding:7px 16px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--accent);display:block;}
.hero h1{
  margin-top:22px;
  font-size:60px;font-weight:900;letter-spacing:-.035em;line-height:1.06;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-lead{
  margin-top:24px;font-size:17.5px;color:var(--muted);max-width:640px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;
}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-pill);
  padding:7px 15px;font-size:13.5px;color:var(--muted);
}
.tag b{color:var(--ink);font-weight:700;}

.hero-visual{position:relative;}
.hero-visual .frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-2);
}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,42,36,0) 40%,rgba(11,23,20,.62));
}
.hero-visual .frame img{width:100%;aspect-ratio:4/3.4;object-fit:cover;transition:transform .5s var(--ease);}
.hero-visual .frame:hover img{transform:scale(1.03);}
.hero-card{
  position:absolute;left:-26px;bottom:34px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  padding:18px 22px;box-shadow:var(--sh-1);min-width:210px;
}
.hero-card .num{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:36px;font-weight:800;color:var(--ink);line-height:1;letter-spacing:-.02em;
}
.hero-card .lbl{margin-top:6px;font-size:13.5px;color:var(--muted);}

/* ---------- section base ---------- */
.section{padding:100px 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:720px;margin-bottom:52px;}
.section-head .kicker{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent);
  text-transform:uppercase;
}
.section-head h2{margin-top:14px;font-size:42px;font-weight:900;letter-spacing:-.03em;}
.section-head p{margin-top:16px;color:var(--muted);font-size:16.5px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.step{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  padding:30px 30px 32px;position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.step:hover{transform:translateY(-2px);border-color:var(--mint);box-shadow:var(--sh-2);}
.step .idx{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:15px;font-weight:800;color:var(--accent);letter-spacing:.06em;
}
.step h3{margin-top:12px;font-size:23px;}
.step p{margin-top:12px;color:var(--muted);font-size:16px;}
.step ul{margin-top:16px;display:grid;gap:9px;}
.step ul li{
  position:relative;padding-left:20px;font-size:15px;color:var(--text);
}
.step ul li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--mint);
}
.step .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;}
.mini-tag{
  font-size:12.5px;letter-spacing:.06em;color:var(--ink);
  background:rgba(127,216,195,.2);border-radius:var(--r-pill);padding:5px 12px;font-weight:600;
}

/* ---------- checklist ---------- */
.split{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.split-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);position:relative;}
.split-media img{width:100%;aspect-ratio:16/12;object-fit:cover;transition:transform .5s var(--ease);}
.split-media:hover img{transform:scale(1.03);}
.check-list{display:grid;gap:16px;margin-top:28px;}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-sm);
  padding:16px 20px;
  transition:border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.check-list li:hover{border-color:var(--mint);transform:translateY(-2px);box-shadow:var(--sh-1);}
.check-list .dot{
  flex:0 0 26px;width:26px;height:26px;border-radius:9px;
  background:rgba(255,90,54,.1);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-family:Inter,sans-serif;
}
.check-list strong{display:block;font-size:16px;color:var(--ink);}
.check-list span{font-size:14.5px;color:var(--muted);}

/* ---------- note / warning ---------- */
.notes{
  background:var(--ink-deep);border-radius:var(--r-lg);
  padding:56px 52px;color:#E8F1EE;position:relative;overflow:hidden;
}
.notes::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(45deg,rgba(127,216,195,.05) 0 1px,transparent 1px 26px);
}
.notes > *{position:relative;}
.notes h2{color:#fff;font-size:34px;}
.notes > p{margin-top:14px;color:#A9BFB8;max-width:760px;font-size:16px;}
.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:38px;}
.note-card{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(127,216,195,.22);
  border-radius:var(--r-md);padding:24px;
  transition:background .24s var(--ease),transform .24s var(--ease);
}
.note-card:hover{background:rgba(127,216,195,.12);transform:translateY(-2px);}
.note-card h4{color:#fff;font-size:17.5px;}
.note-card p{margin-top:10px;color:#A9BFB8;font-size:15px;}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-aside h2{font-size:38px;}
.faq-aside p{margin-top:16px;color:var(--muted);font-size:16px;}
.faq-aside .btn{margin-top:26px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item.open{border-color:var(--mint);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;text-align:left;
  font-size:18px;font-weight:700;color:var(--ink);
}
.faq-q .ico{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;
  background:rgba(127,216,195,.24);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;line-height:1;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-item.open .faq-q .ico{transform:rotate(45deg);background:var(--accent);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s var(--ease);
}
.faq-a p{padding:0 26px 24px;font-size:16px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-radius:var(--r-lg);padding:64px 56px;
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  border:1px solid rgba(127,216,195,.25);
}
.cta-band h2{color:#fff;font-size:36px;position:relative;}
.cta-band p{margin-top:14px;color:#A9BFB8;font-size:16.5px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;position:relative;}
.btn-mint{background:var(--mint);color:var(--ink);}
.btn-mint:hover{background:#68CDB6;color:var(--ink);transform:translateY(-2px);box-shadow:0 16px 38px rgba(127,216,195,.3);}
.btn-line{background:transparent;border-color:rgba(255,255,255,.36);color:#fff;}
.btn-line:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:#A9BFB8;padding:76px 0 34px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:4fr 2.6fr 2.6fr 2.6fr;gap:40px;
}
.site-footer .brand{color:#fff;font-size:17px;}
.site-footer .logo-mark{background:rgba(127,216,195,.18);}
.site-footer .logo-mark svg{fill:var(--mint);}
.site-footer p{margin-top:18px;font-size:15px;line-height:1.85;color:#A9BFB8;}
.site-footer h4{color:#fff;font-size:15.5px;font-weight:700;letter-spacing:.02em;margin-bottom:18px;}
.site-footer ul{display:grid;gap:11px;}
.site-footer ul a{color:#A9BFB8;font-size:15px;}
.site-footer ul a:hover{color:var(--mint);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(127,216,195,.16);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:14px;color:#8AA19A;
}
.to-top{display:inline-flex;align-items:center;gap:7px;color:#A9BFB8;}
.to-top:hover{color:var(--mint);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero h1{font-size:50px;}
  .section-head h2{font-size:37px;}
  .nav-links a{padding:9px 11px;font-size:14.5px;}
  .search-box{min-width:150px;}
}
@media (max-width:991px){
  .header-inner{min-height:64px;}
  .nav-links,.search-box{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:60px 0 68px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:44px;}
  .hero-visual .frame img{aspect-ratio:16/10;}
  .hero-card{left:16px;bottom:16px;}
  .steps{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:34px;}
  .note-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:34px;}
  .cta-band{grid-template-columns:1fr;padding:44px 30px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section{padding:72px 0;}
  .notes{padding:40px 28px;}
  .notes h2{font-size:28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .hero h1{font-size:36px;letter-spacing:-.02em;}
  .hero-lead{font-size:16px;}
  .section-head h2{font-size:29px;}
  .section{padding:56px 0;}
  .hero-cta .btn{width:100%;}
  .faq-q{font-size:16.5px;padding:19px 20px;}
  .faq-a p{padding:0 20px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .crumb{font-size:13px;}
}
@media (max-width:520px){
  .hero h1{font-size:31px;}
  .hero-card{position:static;margin-top:16px;left:auto;bottom:auto;min-width:0;}
  .step{padding:24px 20px;}
  .note-card{padding:20px;}
  .cta-band{padding:34px 20px;}
  .brand{font-size:15.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:rgba(11,23,20,.96);
  display:none;flex-direction:column;
  padding:26px 24px 34px;
}
.drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;}
.drawer .brand{color:#fff;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:transparent;color:#fff;font-size:20px;cursor:pointer;line-height:1;
}
.drawer nav{display:grid;gap:6px;margin-top:38px;}
.drawer nav a{
  color:#fff;font-size:19px;font-weight:700;padding:15px 4px;
  border-bottom:1px solid rgba(127,216,195,.14);
}
.drawer nav a.active{color:var(--mint);}
.drawer .btn{margin-top:auto;}

/* roulang page: article */
:root{
  --ink:#0F2A24;
  --ink-deep:#0B1714;
  --accent:#FF5A36;
  --jade:#7FD8C3;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --line:#E4DED2;
  --text:#202825;
  --muted:#66736F;
  --ok:#2E9D74;
  --warn:#D98A2B;
  --err:#C7493A;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(15,42,36,.08);
  --shadow-hover:0 28px 80px rgba(15,42,36,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em;line-height:1.15;}
p{margin:0;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(247,243,234,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(15,42,36,.07);background:rgba(247,243,234,.98);}
.header-inner{display:flex;align-items:center;gap:22px;height:var(--header-h);}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--ink);letter-spacing:-.02em;white-space:nowrap;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(160deg,var(--ink),#1C4A3F);
  display:grid;place-items:center;flex:0 0 auto;
  box-shadow:0 8px 20px rgba(15,42,36,.22);
}
.logo-mark svg{width:18px;height:18px;fill:var(--jade);}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:8px;}
.nav-links a{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--muted);font-weight:500;
  transition:color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;border-radius:2px;
  background:var(--accent);transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-links a:hover{color:var(--ink);background:rgba(127,216,195,.20);transform:translateY(-1px);}
.nav-links a:hover::after{width:16px;}
.nav-links a.active{color:var(--ink);font-weight:700;background:rgba(15,42,36,.07);}
.nav-links a.active::after{width:18px;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{
  display:flex;align-items:center;gap:6px;height:40px;width:196px;
  padding:0 6px 0 14px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease),width .3s var(--ease);
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(15,42,36,.08);}
.search-box input{flex:1;min-width:0;border:0;background:transparent;font-size:13.5px;outline:none;}
.search-box input::placeholder{color:#9AA5A1;}
.search-box button{width:30px;height:30px;border-radius:var(--r-pill);display:grid;place-items:center;color:var(--muted);transition:background .2s var(--ease),color .2s var(--ease);}
.search-box button:hover{background:rgba(15,42,36,.07);color:var(--ink);}
.search-box svg{width:16px;height:16px;fill:currentColor;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn svg{width:15px;height:15px;fill:currentColor;transition:transform .28s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 28px rgba(255,90,54,.28);}
.btn-primary:hover{box-shadow:0 18px 40px rgba(255,90,54,.36);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(15,42,36,.22);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:var(--ink-deep);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-block{width:100%;}

.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--card);
  place-items:center;color:var(--ink);
}
.menu-toggle svg{width:20px;height:20px;fill:currentColor;}

.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:200;background:var(--bg);
  padding:22px 20px 32px;flex-direction:column;gap:6px;overflow-y:auto;
}
.mobile-drawer.open{display:flex;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:42px;height:42px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--card);display:grid;place-items:center;}
.drawer-close svg{width:18px;height:18px;fill:var(--ink);}
.mobile-drawer a.drawer-link{
  display:block;padding:15px 16px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--ink);background:var(--card);
  border:1px solid var(--line);transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.mobile-drawer a.drawer-link:hover{border-color:var(--ink);transform:translateY(-1px);}
.mobile-drawer a.drawer-link.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.drawer-search{display:flex;gap:8px;margin:14px 0 6px;}
.drawer-search input{flex:1;height:46px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--card);outline:none;}
.drawer-search input:focus{border-color:var(--ink);}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:16px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:26px 0 0;font-size:13.5px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:#BFC7C3;}
.breadcrumb .current{color:var(--ink);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头部 ============ */
.article-head{padding:30px 0 0;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 13px;
  border-radius:var(--r-pill);background:rgba(127,216,195,.30);color:#175A4A;
  font-size:12.5px;font-weight:700;letter-spacing:.06em;
}
.article-head h1{
  margin:18px 0 0;font-size:46px;font-weight:800;letter-spacing:-.03em;line-height:1.16;
  max-width:900px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;
  margin-top:22px;font-size:13.5px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C6CEC9;}
.article-meta b{color:var(--ink);font-weight:700;}
.share-btn{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 15px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--card);
  font-size:13px;font-weight:600;color:var(--ink);
  transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .3s var(--ease);
}
.share-btn svg{width:14px;height:14px;fill:currentColor;}
.share-btn:hover{border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow);}
.share-btn.copied{border-color:var(--ok);color:var(--ok);}
.article-cover{
  position:relative;margin:30px 0 0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);background:#0B1714;
}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover;transition:transform .5s var(--ease);}
.article-cover:hover img{transform:scale(1.03);}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,23,20,0) 45%,rgba(11,23,20,.60) 100%);
}
.cover-caption{
  position:absolute;left:24px;right:24px;bottom:20px;z-index:2;
  color:#F3F0E8;font-size:13.5px;letter-spacing:.02em;
}

/* ============ 文章布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;
  padding:52px 0 8px;align-items:start;
}
.prose{max-width:820px;font-size:17px;line-height:1.85;color:var(--text);}
.prose h2{
  position:relative;margin:52px 0 18px;padding-left:20px;
  font-size:30px;font-weight:800;letter-spacing:-.02em;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;border-radius:3px;background:var(--accent);
}
.prose h3{margin:36px 0 12px;font-size:23px;font-weight:700;}
.prose h4{margin:26px 0 10px;font-size:18px;font-weight:700;color:var(--ink);}
.prose p{margin:0 0 20px;}
.prose ul,.prose ol{margin:0 0 22px;padding-left:24px;}
.prose ul li{list-style:disc;margin-bottom:10px;}
.prose ol li{list-style:decimal;margin-bottom:10px;}
.prose li::marker{color:var(--accent);}
.prose a{color:var(--ink);font-weight:600;text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:4px;text-decoration-thickness:2px;transition:background .2s var(--ease);}
.prose a:hover{background:rgba(255,90,54,.12);}
.prose img{border-radius:var(--r-md);margin:26px 0;box-shadow:var(--shadow);}
.prose blockquote{
  margin:26px 0;padding:20px 26px;background:var(--card);
  border-left:3px solid var(--jade);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--muted);font-size:16.5px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose hr{border:0;border-top:1px solid var(--line);margin:40px 0;}
.prose table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:26px 0;font-size:15px;background:var(--card);border-radius:var(--r-sm);
}
.prose th,.prose td{border:1px solid var(--line);padding:11px 15px;text-align:left;white-space:nowrap;}
.prose th{background:rgba(15,42,36,.05);font-weight:700;color:var(--ink);}
.prose code{background:rgba(15,42,36,.06);padding:2px 6px;border-radius:6px;font-size:14.5px;}

/* 空态 */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow);
}
.empty-icon{width:64px;height:64px;margin:0 auto 20px;border-radius:20px;background:rgba(127,216,195,.28);display:grid;place-items:center;}
.empty-icon svg{width:30px;height:30px;fill:var(--ink);}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{color:var(--muted);max-width:460px;margin:0 auto 24px;}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:22px;position:sticky;top:96px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:0 14px 40px rgba(15,42,36,.05);
}
.side-card h3{font-size:15px;letter-spacing:.06em;color:var(--muted);font-weight:700;margin-bottom:14px;text-transform:uppercase;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:7px 10px;border-radius:10px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;transition:all .22s var(--ease);line-height:1.5;
}
.toc-list a:hover{color:var(--ink);background:rgba(127,216,195,.20);border-left-color:var(--jade);}
.toc-list a.lv3{padding-left:22px;font-size:13.5px;}
.reco-list{display:flex;flex-direction:column;gap:16px;}
.reco-item{display:flex;gap:12px;align-items:flex-start;transition:transform .25s var(--ease);}
.reco-item:hover{transform:translateY(-2px);}
.reco-item img{width:78px;height:60px;object-fit:cover;border-radius:12px;flex:0 0 auto;}
.reco-item .reco-body{min-width:0;}
.reco-item .reco-cat{font-size:12px;font-weight:700;color:#175A4A;letter-spacing:.05em;}
.reco-item h4{font-size:14.5px;font-weight:700;line-height:1.5;margin:4px 0 4px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.reco-item .reco-time{font-size:12.5px;color:var(--muted);}
.side-return{background:linear-gradient(165deg,var(--ink),#123328);color:#E8F1ED;border:0;}
.side-return h3{color:rgba(232,241,237,.62);}
.side-return p{font-size:14px;color:rgba(232,241,237,.82);margin-bottom:16px;}
.side-return .btn{width:100%;}
.side-return .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.side-return .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}

/* ============ 核对清单 ============ */
.check-block{margin:56px 0 0;padding:34px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);}
.check-block h2{font-size:26px;margin-bottom:10px;}
.check-block .lead{color:var(--muted);font-size:15px;margin-bottom:24px;max-width:640px;}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.check-item{display:flex;gap:12px;padding:16px 18px;border-radius:var(--r-sm);background:rgba(247,243,234,.75);border:1px solid var(--line);transition:border-color .25s var(--ease),transform .25s var(--ease);}
.check-item:hover{border-color:var(--jade);transform:translateY(-2px);}
.check-num{
  flex:0 0 auto;width:26px;height:26px;border-radius:9px;background:var(--ink);color:#fff;
  display:grid;place-items:center;font-size:12.5px;font-weight:700;
}
.check-item p{font-size:14.5px;line-height:1.7;color:var(--text);}
.check-item strong{color:var(--ink);}

/* ============ 底部 CTA ============ */
.article-cta{
  margin:64px 0 0;padding:56px 40px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,var(--ink),#123328);color:#EAF3EF;
  position:relative;overflow:hidden;
}
.article-cta::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,216,195,.28),rgba(127,216,195,0) 70%);
}
.article-cta h2{color:#fff;font-size:32px;margin-bottom:14px;position:relative;z-index:1;}
.article-cta p{color:rgba(234,243,239,.80);max-width:640px;margin-bottom:28px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}
.article-cta .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;}
.article-cta .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:#C9D6D1;margin-top:96px;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.site-footer .brand{color:#fff;font-size:17px;font-weight:800;}
.site-footer .brand .logo-mark{background:linear-gradient(160deg,#1C4A3F,#0F2A24);box-shadow:none;}
.site-footer p{color:#8EA09A;font-size:14px;line-height:1.85;margin-top:16px;max-width:340px;}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.08em;margin-bottom:16px;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer ul a{font-size:14px;color:#9FB0AA;transition:color .22s var(--ease),padding-left .22s var(--ease);}
.site-footer ul a:hover{color:var(--jade);padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E9089;
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:#9FB0AA;transition:color .22s var(--ease);}
.to-top:hover{color:var(--jade);}

@keyframes fadeUp{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.fade-up{animation:fadeUp .55s var(--ease) both;}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .article-head h1{font-size:40px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px;}
  .search-box{width:160px;}
}
@media (max-width:991px){
  :root{--header-h:64px;}
  .nav-links,.search-box,.header-actions .btn-ghost{display:none;}
  .menu-toggle{display:grid;}
  .header-actions .btn-primary{height:38px;padding:0 16px;font-size:13.5px;}
  .article-layout{grid-template-columns:1fr;gap:36px;padding-top:40px;}
  .side-col{position:static;}
  .article-head h1{font-size:34px;}
  .prose{font-size:16.5px;}
  .prose h2{font-size:26px;}
  .prose h3{font-size:21px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .check-grid{grid-template-columns:1fr;}
  .article-cta{padding:44px 26px;}
  .article-cta h2{font-size:26px;}
}
@media (max-width:767px){
  .brand span.brand-text{font-size:15.5px;}
  .article-cover img{aspect-ratio:16/10;}
  .cover-caption{left:16px;right:16px;bottom:14px;font-size:12.5px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:64px;padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-head h1{font-size:28px;line-height:1.25;}
  .article-meta{gap:8px 14px;font-size:13px;}
  .breadcrumb .current{max-width:100%;white-space:normal;}
  .prose h2{font-size:23px;padding-left:16px;}
  .prose h3{font-size:19.5px;}
  .check-block{padding:24px 20px;}
  .side-card{padding:18px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .header-actions .btn-primary{display:none;}
}

/* roulang page: category2 */
:root{
  --ink:#0F2A24;
  --ink-deep:#0B1714;
  --orange:#FF5A36;
  --mint:#7FD8C3;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --line:#E4DED2;
  --text:#202825;
  --muted:#66736F;
  --ok:#2E9D74;
  --warn:#D98A2B;
  --err:#C7493A;
  --r-btn:999px;
  --r-card:20px;
  --r-img:28px;
  --r-input:14px;
  --sh:0 20px 60px rgba(15,42,36,.08);
  --sh-hover:0 28px 80px rgba(15,42,36,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --h-nav:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.03em;line-height:1.14;font-weight:800;}
p{margin:0;}
svg{display:block;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部状态条 ---------- */
.topbar{background:var(--ink);color:#D9E6E1;font-size:12.5px;letter-spacing:.04em;}
.topbar .container{display:flex;align-items:center;gap:18px;height:32px;justify-content:space-between;}
.topbar .dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:8px;vertical-align:middle;}
.topbar-links{display:flex;gap:18px;}
.topbar-links a{opacity:.82;transition:opacity .2s var(--ease);}
.topbar-links a:hover{opacity:1;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.9);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(15,42,36,.08);}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  min-height:var(--h-nav);
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:900;color:var(--ink);font-size:18px;letter-spacing:-.02em;
  white-space:nowrap;
}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:none;
  background:linear-gradient(160deg,var(--ink) 0%,#164036 100%);
  display:grid;place-items:center;color:var(--mint);
  box-shadow:0 8px 18px rgba(15,42,36,.22);
}
.logo-mark svg{width:16px;height:16px;fill:currentColor;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  position:relative;display:block;
  padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink);opacity:.78;
  transition:transform .2s var(--ease),opacity .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);border-radius:2px;
}
.nav-links a:hover{transform:translateY(-1px);opacity:1;background:rgba(127,216,195,.2);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{opacity:1;background:rgba(127,216,195,.28);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;min-width:190px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 0 0 4px rgba(127,216,195,.3);}
.search-box svg{width:15px;height:15px;fill:var(--muted);flex:none;}
.search-box input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:#9AA5A1;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  padding:11px 22px;border:1px solid transparent;cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .3s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn svg{width:15px;height:15px;fill:currentColor;transition:transform .25s var(--ease);}
.btn:hover{transform:translateY(-2px);}
.btn:hover svg{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-outline{border-color:var(--line);background:#fff;color:var(--ink);}
.btn-outline:hover{border-color:var(--ink);box-shadow:var(--sh);}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 12px 26px rgba(255,90,54,.28);}
.btn-primary:hover{box-shadow:0 18px 38px rgba(255,90,54,.36);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{background:#164036;box-shadow:var(--sh);}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;}
.btn-block{width:100%;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

.menu-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s var(--ease),top .25s var(--ease);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}
.menu-toggle[aria-expanded="true"] span{background:transparent;}
.menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

.drawer{
  position:fixed;inset:0 0 0 0;z-index:80;
  background:var(--bg);transform:translateY(-102%);
  transition:transform .4s var(--ease);overflow-y:auto;padding:88px 24px 40px;
}
.drawer.open{transform:translateY(0);}
.drawer-close{
  position:absolute;top:22px;right:22px;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:20px;color:var(--ink);
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:28px;}
.drawer-nav a{
  padding:16px 18px;border-radius:16px;font-size:18px;font-weight:700;color:var(--ink);
  border:1px solid var(--line);background:#fff;
}
.drawer-nav a.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.drawer .search-box{min-width:0;width:100%;margin-bottom:18px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.breadcrumb a{color:var(--muted);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--orange);}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{color:var(--ink);font-weight:700;}

/* ---------- Hero（压缩高度） ---------- */
.hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(11,23,20,.94) 0%,rgba(15,42,36,.86) 46%,rgba(15,42,36,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#EAF2EF;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 13px);
  opacity:.75;
}
.hero .container{position:relative;z-index:2;}
.hero-top{padding:26px 0 0;}
.hero .breadcrumb,.hero .breadcrumb a,.hero .breadcrumb .current{color:#B9CFC9;}
.hero .breadcrumb .current{color:#fff;}
.hero-top{padding-bottom:8px;}
.hero-grid{
  display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:center;
  padding:34px 0 66px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;font-weight:700;text-transform:uppercase;
  color:var(--mint);margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--mint);opacity:.7;}
.hero h1{
  font-size:clamp(34px,4.4vw,58px);
  color:#fff;line-height:1.08;letter-spacing:-.035em;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--mint);}
.hero-lead{font-size:17px;color:#C9DAD5;max-width:640px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:rgba(127,216,195,.16);color:#CFF0E6;border:1px solid rgba(127,216,195,.34);
}
.hero-card{
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-img);
  padding:16px;backdrop-filter:blur(4px);
}
.hero-card img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:0 24px 50px rgba(0,0,0,.35);
}
.hero-card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;color:#D6E7E2;font-size:13.5px;}
.hero-card-meta strong{color:#fff;font-size:15px;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section.tight{padding:76px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(26px,3vw,40px);margin-bottom:16px;}
.section-sub{color:var(--muted);font-size:17px;}
.split-head{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:end;margin-bottom:48px;}

/* ---------- 矩阵卡 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.matrix-card{
  position:relative;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px 30px 26px;box-shadow:var(--sh);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;flex-direction:column;gap:18px;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--mint);}
.card-top{display:flex;align-items:flex-start;gap:16px;}
.card-num{
  font-family:Inter,"DIN Alternate",sans-serif;
  font-size:15px;font-weight:800;letter-spacing:.06em;color:var(--orange);
  background:rgba(255,90,54,.1);border-radius:12px;padding:7px 12px;flex:none;
}
.matrix-card h3{font-size:22px;margin-bottom:8px;}
.matrix-card .desc{color:var(--muted);font-size:15.5px;}
.tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  padding:5px 12px;border-radius:999px;
  background:var(--bg);border:1px solid var(--line);color:var(--ink);
}
.tag.mint{background:rgba(127,216,195,.22);border-color:rgba(127,216,195,.5);}
.meta-rows{border-top:1px dashed var(--line);padding-top:16px;display:flex;flex-direction:column;gap:10px;}
.meta-row{display:grid;grid-template-columns:84px 1fr;gap:12px;font-size:14.5px;}
.meta-row dt{color:var(--muted);font-weight:600;}
.meta-row dd{margin:0;color:var(--text);}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-weight:700;font-size:15px;color:var(--ink);
  transition:color .2s var(--ease);
}
.card-link svg{width:15px;height:15px;fill:currentColor;transition:transform .25s var(--ease);}
.card-link:hover{color:var(--orange);}
.card-link:hover svg{transform:translateX(4px);}

/* ---------- 适用场景 ---------- */
.scene-list{display:flex;flex-direction:column;gap:14px;}
.scene-item{
  display:grid;grid-template-columns:46px 1fr;gap:16px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh);
  transition:transform .25s var(--ease),border-color .25s var(--ease);
}
.scene-item:hover{transform:translateY(-2px);border-color:var(--mint);}
.scene-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:rgba(127,216,195,.24);color:var(--ink);
}
.scene-icon svg{width:20px;height:20px;fill:currentColor;}
.scene-item h3{font-size:18px;margin-bottom:6px;}
.scene-item p{color:var(--muted);font-size:15px;}
.scene-aside{
  background:var(--ink);color:#D8E7E2;border-radius:var(--r-img);
  padding:34px;position:relative;overflow:hidden;
}
.scene-aside::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:200px;height:200px;border-radius:50%;
  border:1px solid rgba(127,216,195,.28);
}
.scene-aside h3{color:#fff;font-size:22px;margin-bottom:14px;}
.scene-aside p{color:#B9CFC9;font-size:15px;margin-bottom:20px;}
.scene-aside .stat-mini{display:flex;gap:28px;position:relative;z-index:2;}
.scene-aside .stat-mini b{display:block;font-family:Inter,sans-serif;font-size:30px;color:var(--mint);line-height:1.2;}
.scene-aside .stat-mini span{font-size:13px;color:#9FBDB5;}

/* ---------- 步骤条带 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff;box-shadow:var(--sh);}
.step{padding:34px 30px;border-right:1px solid var(--line);position:relative;transition:background .3s var(--ease);}
.step:last-child{border-right:0;}
.step:hover{background:#FBFAF5;}
.step-num{
  font-family:Inter,sans-serif;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:#fff;background:var(--ink);display:inline-block;padding:6px 12px;border-radius:999px;margin-bottom:18px;
}
.step:nth-child(2) .step-num{background:var(--orange);}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{color:var(--muted);font-size:15px;}

/* ---------- 数据区 ---------- */
.stats{
  background:var(--ink-deep);color:#fff;position:relative;overflow:hidden;
  padding:88px 0;
}
.stats::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(127,216,195,.06) 0 1px,transparent 1px 18px);
}
.stats .container{position:relative;z-index:2;}
.stats-head{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:46px;}
.stats-head h2{color:#fff;font-size:clamp(24px,2.6vw,34px);max-width:620px;}
.stats-head p{color:#9FBDB5;font-size:15.5px;max-width:420px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat{border-left:2px solid rgba(127,216,195,.4);padding-left:20px;}
.stat-num{font-family:Inter,sans-serif;font-size:clamp(44px,5vw,72px);font-weight:900;line-height:1;color:#fff;letter-spacing:-.04em;}
.stat-num .unit{font-size:18px;font-weight:700;color:var(--mint);margin-left:6px;letter-spacing:0;}
.stat-label{margin-top:12px;font-size:15px;color:var(--mint);font-weight:700;}
.stat-desc{margin-top:6px;font-size:13.5px;color:#9FBDB5;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:var(--mint);}
.faq-item.open{box-shadow:var(--sh);border-color:var(--mint);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:20px 24px;font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q .ico{
  width:30px;height:30px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:var(--bg);color:var(--ink);transition:transform .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
}
.faq-q .ico svg{width:13px;height:13px;fill:currentColor;}
.faq-item.open .faq-q .ico{transform:rotate(180deg);background:var(--ink);color:#fff;}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s var(--ease);}
.faq-item.open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{padding:0 24px 22px;color:var(--muted);font-size:16px;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(150deg,var(--ink) 0%,#0B1714 100%);
  color:#fff;border-radius:var(--r-img);padding:56px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,54,.34) 0%,transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr .6fr;gap:36px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.8vw,36px);margin-bottom:14px;}
.cta-band p{color:#B9CFC9;font-size:16px;max-width:620px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:#B9CFC9;padding:76px 0 28px;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.1);}
.site-footer .brand{color:#fff;margin-bottom:16px;font-size:18px;}
.site-footer .brand .logo-mark{background:rgba(127,216,195,.16);color:var(--mint);box-shadow:none;}
.site-footer p{font-size:14.5px;color:#93ADA6;max-width:340px;}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:18px;letter-spacing:.02em;}
.site-footer ul{display:flex;flex-direction:column;gap:11px;}
.site-footer ul a{font-size:14.5px;color:#A9C2BB;transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.site-footer ul a:hover{color:var(--mint);transform:translateX(3px);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;padding-top:24px;font-size:13px;color:#7E9791;}
.to-top{display:inline-flex;align-items:center;gap:7px;color:#B9CFC9;font-size:13.5px;font-weight:600;transition:color .2s var(--ease);}
.to-top:hover{color:var(--mint);}
.to-top svg{margin-top:1px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links a{padding:9px 10px;font-size:14.5px;}
  .search-box{min-width:150px;}
  .hero-grid{gap:34px;}
}
@media (max-width:991px){
  .nav-links,.nav-actions .search-box,.nav-actions .btn-outline{display:none;}
  .menu-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:24px 0 56px;}
  .hero-card{max-width:520px;}
  .split-head{grid-template-columns:1fr;gap:18px;align-items:start;}
  .matrix-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:34px 24px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .topbar-links{display:none;}
  .steps{grid-template-columns:1fr;}
  .step{border-right:0;border-bottom:1px solid var(--line);}
  .step:last-child{border-bottom:0;}
  .cta-band{padding:34px 24px;border-radius:22px;}
  .cta-actions .btn{width:100%;}
  .hero-cta .btn{width:100%;}
  .scene-aside{padding:26px;}
}
@media (max-width:576px){
  .container{padding:0 20px;}
  .hero h1{font-size:34px;}
  .section{padding:56px 0;}
  .matrix-card{padding:24px 20px;}
  .meta-row{grid-template-columns:1fr;gap:2px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat{border-left-width:2px;}
  .faq-q{font-size:16.5px;padding:18px 20px;}
  .faq-a-inner p{padding:0 20px 20px;}
  .site-footer{padding:56px 0 24px;margin-top:64px;}
  .hero-card-meta{flex-direction:column;align-items:flex-start;gap:4px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --ink:#0F2A24;
  --ink-deep:#0B1714;
  --accent:#FF5A36;
  --mint:#7FD8C3;
  --bg:#F7F3EA;
  --card:#FFFFFF;
  --line:#E4DED2;
  --text:#202825;
  --muted:#66736F;
  --ok:#2E9D74;
  --warn:#D98A2B;
  --err:#C7493A;
  --r-btn:999px;
  --r-card:20px;
  --r-img:28px;
  --r-input:14px;
  --sh:0 20px 60px rgba(15,42,36,.08);
  --sh-hover:0 28px 80px rgba(15,42,36,.14);
  --ease:cubic-bezier(.2,.8,.2,1);
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit;font-size:16px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.03em;line-height:1.14}
p{margin:0}
svg{display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;
  color:var(--ink);background:rgba(127,216,195,.28);
  border:1px solid rgba(15,42,36,.08);
  padding:6px 14px;border-radius:999px;text-transform:uppercase;
}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{font-size:clamp(28px,3.4vw,44px);margin:18px 0 14px}
.sec-head p{color:var(--muted);font-size:16.5px}
.muted{color:var(--muted)}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,243,234,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(12px);
  transition:box-shadow .3s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 34px rgba(15,42,36,.09)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(160deg,var(--ink),#1C463B);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(15,42,36,.22);
}
.logo-mark svg{width:18px;height:18px;fill:var(--mint)}
.brand-text{display:flex;flex-direction:column;line-height:1.2;font-weight:900;color:var(--ink);font-size:16px;letter-spacing:-.02em}
.brand-text small{font-size:11px;font-weight:600;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px;flex:1}
.nav-links a{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:14.5px;font-weight:600;color:#33403C;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover{background:#fff;color:var(--ink);transform:translateY(-1px)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{background:rgba(127,216,195,.3);color:var(--ink)}
.nav-links a.active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:10px;flex-shrink:0}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:0 14px;height:42px;width:196px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-box:focus-within{border-color:var(--ink);box-shadow:0 0 0 4px rgba(127,216,195,.28)}
.search-box svg{width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:2}
.search-box input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:var(--text)}
.search-box input::placeholder{color:#98A29E}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-weight:700;font-size:15px;
  padding:12px 22px;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn svg{width:15px;height:15px;fill:currentColor;transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:#fff;box-shadow:0 10px 26px rgba(15,42,36,.2)}
.btn-primary:hover{background:#143A31;color:#fff;box-shadow:0 16px 34px rgba(15,42,36,.28);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 28px rgba(255,90,54,.3)}
.btn-accent:hover{background:#EB4925;color:#fff;transform:translateY(-2px);box-shadow:0 18px 38px rgba(255,90,54,.36)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-block{width:100%}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;transition:background .2s}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease)
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.menu-toggle[aria-expanded="true"] span{background:transparent}
.menu-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#FFFDF8;
  padding:18px 24px 26px;
}
.mobile-drawer.open{display:block;animation:drop .3s var(--ease)}
@keyframes drop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.mobile-drawer .search-box{width:100%;margin-bottom:14px}
.mobile-drawer nav{display:grid;gap:6px;margin-bottom:16px}
.mobile-drawer nav a{padding:12px 14px;border-radius:14px;font-weight:600;background:#fff;border:1px solid var(--line)}
.mobile-drawer nav a.active{background:rgba(127,216,195,.3);border-color:rgba(15,42,36,.12)}
.mobile-drawer .btn{width:100%;margin-top:8px}

/* ---------- Breadcrumb ---------- */
.crumbs{padding:22px 0 0;font-size:13.5px;color:var(--muted)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--accent)}
.crumbs li[aria-current]{color:var(--ink);font-weight:600}
.crumbs .sep{color:#C3BCAE}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,rgba(247,243,234,.2),rgba(247,243,234,.96)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(15,42,36,.05) 0 1px,transparent 1px 14px);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:64px 0 72px;max-width:840px}
.hero h1{font-size:clamp(32px,4.6vw,58px);margin:20px 0 20px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{font-size:17.5px;color:#374540;max-width:680px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.86);border:1px solid var(--line);
  color:#33403C;font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;
}
.chip .dot{width:7px;height:7px;border-radius:50%;background:var(--ok)}
.chip.warn .dot{background:var(--warn)}
.chip.info .dot{background:var(--mint)}

/* ---------- Layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 336px;gap:44px;align-items:start}
.qa-list{display:grid;gap:20px}
.qa-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--sh);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.qa-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(15,42,36,.22)}
.qa-thumb{
  position:relative;border-radius:16px;overflow:hidden;background:#EDE7DA;
  aspect-ratio:4/3;
}
.qa-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.qa-card:hover .qa-thumb img{transform:scale(1.05)}
.qa-body{display:flex;flex-direction:column;gap:10px;padding:6px 6px 6px 0}
.qa-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:5px 11px;border-radius:999px;
  background:rgba(127,216,195,.26);color:#123A31;border:1px solid rgba(15,42,36,.08);
}
.tag.orange{background:rgba(255,90,54,.12);color:#B93A1C;border-color:rgba(255,90,54,.22)}
.tag.grey{background:#F1EDE3;color:var(--muted)}
.qa-body h3{font-size:20px;letter-spacing:-.02em}
.qa-body h3 a{color:var(--ink)}
.qa-body h3 a:hover{color:var(--accent)}
.qa-body p{color:var(--muted);font-size:15px}
.qa-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:auto;padding-top:8px;border-top:1px dashed var(--line)}
.qa-foot .time{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:14px;color:var(--ink)}
.link-more svg{width:14px;height:14px;fill:currentColor;transition:transform .25s var(--ease)}
.link-more:hover{color:var(--accent)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- Sidebar ---------- */
.sidebar{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh);
}
.side-card h4{font-size:16px;margin-bottom:14px;letter-spacing:-.01em}
.side-nav{display:grid;gap:6px}
.side-nav a{
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;border-radius:14px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;color:#33403C;
}
.side-nav a .num{font-size:12px;font-weight:800;color:var(--muted);font-variant-numeric:tabular-nums}
.side-nav a:hover{background:#FBF8F1;border-color:var(--line);color:var(--ink);transform:translateX(2px)}
.side-nav a.active{background:rgba(127,216,195,.28);border-color:rgba(15,42,36,.1);color:var(--ink)}
.side-media{border-radius:16px;overflow:hidden;border:1px solid var(--line);margin-bottom:14px;aspect-ratio:16/10;background:#EDE7DA}
.side-media img{width:100%;height:100%;object-fit:cover}
.side-note{font-size:14px;color:var(--muted)}
.side-contact{background:linear-gradient(165deg,#12362E,#0B1714);border-color:rgba(255,255,255,.08);color:#DCE6E1}
.side-contact h4{color:#fff}
.side-contact p{font-size:14px;color:#B9C8C2;margin-bottom:16px}

/* ---------- Process ---------- */
.process{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh);position:relative;overflow:hidden;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(15,42,36,.2)}
.step .idx{
  font-size:40px;font-weight:900;color:rgba(15,42,36,.13);letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;line-height:1;
}
.step h3{font-size:19px;margin:12px 0 10px}
.step p{color:var(--muted);font-size:15px}

/* ---------- Dark safety block ---------- */
.safety{background:var(--ink-deep);color:#D7E2DD;position:relative;overflow:hidden}
.safety::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 1px,transparent 1px 16px);
}
.safety .container{position:relative;z-index:2}
.safety h2{color:#fff;font-size:clamp(28px,3.2vw,42px);margin-bottom:14px;max-width:640px}
.safety .sub{color:#A9BBB4;max-width:660px;margin-bottom:44px}
.safety-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.safety-item{
  border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:24px 22px;
  background:rgba(255,255,255,.03);transition:background .25s var(--ease),transform .25s var(--ease),border-color .25s var(--ease);
}
.safety-item:hover{background:rgba(255,255,255,.07);transform:translateY(-3px);border-color:rgba(127,216,195,.4)}
.safety-item .ico{
  width:40px;height:40px;border-radius:12px;background:rgba(127,216,195,.16);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.safety-item .ico svg{width:20px;height:20px;fill:var(--mint)}
.safety-item h3{color:#fff;font-size:17px;margin-bottom:8px}
.safety-item p{font-size:14.5px;color:#A9BBB4}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:14px;max-width:880px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  box-shadow:0 10px 30px rgba(15,42,36,.05);overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item:hover{border-color:rgba(15,42,36,.2)}
.faq-item.open{border-color:rgba(15,42,36,.28);box-shadow:var(--sh)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 24px;text-align:left;font-size:18px;font-weight:700;color:var(--ink);
}
.faq-q .plus{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);position:relative;transition:transform .3s var(--ease),background-color .3s var(--ease),border-color .3s var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:12px;height:2px}
.faq-q .plus::after{width:2px;height:12px;transition:opacity .25s var(--ease)}
.faq-item.open .faq-q .plus{background:var(--accent);border-color:var(--accent);transform:rotate(180deg)}
.faq-item.open .faq-q .plus::before{background:#fff}
.faq-item.open .faq-q .plus::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.faq-a .inner{padding:0 24px 24px;color:var(--muted);font-size:16px}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(160deg,#12362E,#0B1714);
  border-radius:28px;padding:56px;color:#DCE6E1;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,216,195,.24),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(26px,3vw,38px);margin-bottom:14px}
.cta-band p{color:#AFC0B9}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:2}
.cta-actions .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.cta-actions .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff}

/* ---------- Contact form ---------- */
.contact-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:36px;align-items:start}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:8px;color:var(--ink)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  padding:13px 16px;background:#FFFDF9;color:var(--text);outline:0;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease);
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink);background:#fff;box-shadow:0 0 0 4px rgba(127,216,195,.26);
}
.field .hint{font-size:12.5px;color:var(--muted);margin-top:6px}
.info-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh)}
.info-list{display:grid;gap:18px;margin-top:20px}
.info-list li{display:flex;gap:14px;align-items:flex-start;font-size:15px;color:var(--muted)}
.info-list .bullet{
  flex-shrink:0;width:26px;height:26px;border-radius:9px;background:rgba(127,216,195,.28);
  display:flex;align-items:center;justify-content:center;
}
.info-list .bullet svg{width:13px;height:13px;fill:var(--ink)}
.notice{
  display:flex;gap:12px;align-items:flex-start;
  background:#F1FAF6;border:1px solid rgba(46,157,116,.28);border-radius:14px;
  padding:14px 16px;font-size:14px;color:#1F6B52;margin-top:18px;
}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-deep);color:#A9BBB4;padding:76px 0 30px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr .9fr .9fr .9fr;gap:38px}
.site-footer .brand{font-size:17px;font-weight:900;color:#fff;margin-bottom:14px;letter-spacing:-.02em}
.site-footer .brand .logo-mark{width:34px;height:34px;background:rgba(127,216,195,.16);box-shadow:none}
.site-footer .brand .logo-mark svg{fill:var(--mint)}
.site-footer p{font-size:14.5px;color:#8FA29B;max-width:340px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.01em}
.site-footer ul{display:grid;gap:10px}
.site-footer ul a{color:#9FB2AB;font-size:14.5px}
.site-footer ul a:hover{color:var(--mint)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13.5px;color:#7D8F89;
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:#B9C8C2;font-weight:600}
.to-top:hover{color:var(--mint)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .nav-links a{padding:9px 10px;font-size:14px}
  .search-box{width:160px}
  .safety-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-links,.header-tools .search-box,.header-tools .btn-ghost{display:none}
  .menu-toggle{display:flex}
  .header-tools .btn-primary{padding:11px 16px;font-size:14px}
  .header-inner{height:64px;gap:12px}
  .section{padding:72px 0}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .sidebar{position:static}
  .process{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:40px}
  .contact-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .brand-text{font-size:15px}
  .hero-inner{padding:44px 0 52px}
  .qa-card{grid-template-columns:minmax(0,1fr);gap:14px}
  .qa-thumb{aspect-ratio:16/9}
  .qa-body{padding:0}
  .process{grid-template-columns:minmax(0,1fr)}
  .safety-grid{grid-template-columns:minmax(0,1fr)}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .form-card,.info-card,.side-card{padding:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .site-footer{padding:56px 0 24px;margin-top:64px}
  .faq-q{font-size:16.5px;padding:18px 18px}
  .faq-a .inner{padding:0 18px 20px}
}
@media (max-width:520px){
  .hero h1{font-size:32px}
  .sec-head h2{font-size:26px}
  .cta-band{padding:30px 22px;border-radius:22px}
  .qa-body h3{font-size:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}