/* roulang page: index */
:root{
  --primary:#1C4A45;
  --primary-dark:#12332F;
  --accent:#E0663B;
  --accent-hover:#C9552F;
  --bg:#F7F5EF;
  --bg-soft:#EDF2EE;
  --card:#FFFFFF;
  --text:#1B211F;
  --text-2:#58635F;
  --text-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --success:#2E7D5B;
  --warn:#C9812F;
  --error:#B4432F;
  --r-card:12px;
  --r-btn:8px;
  --r-img:10px;
  --r-badge:4px;
  --sh-1:0 1px 2px rgba(18,51,47,.06);
  --sh-2:0 8px 24px rgba(18,51,47,.08);
  --t:180ms ease-out;
  --font-title:"Songti SC","Noto Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --section-y:96px;
  --container:1180px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:600;letter-spacing:-.01em;color:var(--primary-dark);}
p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-y) 0;}
.section-soft{background:var(--bg-soft);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.4vw,30px);line-height:1.4;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:15px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--primary);background:#fff;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--accent);border-radius:50%;}
.badge{
  display:inline-block;padding:3px 10px;border-radius:var(--r-badge);
  background:var(--pill);color:var(--primary);font-size:12px;line-height:1.6;font-weight:500;
}
.badge-accent{background:rgba(224,102,59,.12);color:var(--accent-hover);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;font-family:var(--font-body);cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-ghost:hover{background:var(--pill);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--primary);}
.link-arrow span{transition:transform var(--t);}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover span{transform:translateX(2px);}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--primary-dark);color:rgba(255,255,255,.82);font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:16px;height:36px;}
.topbar-site{color:rgba(255,255,255,.72);letter-spacing:.02em;}
.topbar-sep{width:1px;height:14px;background:rgba(255,255,255,.22);}
.topbar-note{flex:1;color:rgba(255,255,255,.72);}
.topbar-actions{display:flex;align-items:center;gap:18px;}
.topbar-tel{color:rgba(255,255,255,.9);font-weight:500;}
.topbar-tel:hover{color:#fff;}
.topbar-link{color:var(--accent);}
.topbar-link:hover{color:#F08C64;}

/* ---------- 主导航 ---------- */
.site-nav{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:32px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary-dark);}
.brand:hover{color:var(--primary-dark);}
.brand-mark{
  width:26px;height:26px;border-radius:6px;background:var(--primary);
  position:relative;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;background:var(--bg);border-radius:3px;
  transform:rotate(45deg);
}
.brand-text{display:flex;align-items:baseline;gap:6px;line-height:1;}
.brand-name{font-family:var(--font-title);font-size:24px;font-weight:600;letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:22px 0;line-height:1;
  transition:color var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a.active{color:var(--primary-dark);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{margin-left:8px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:42px;height:42px;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-btn);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-dark);transition:transform var(--t),opacity var(--t);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{padding:64px 0 80px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 78%);}
.hero-inner{display:grid;grid-template-columns:58fr 42fr;gap:56px;align-items:center;}
.hero-title{margin-top:20px;font-size:clamp(30px,4vw,46px);line-height:1.25;}
.hero-sub{margin-top:18px;font-size:18px;line-height:1.7;color:var(--text-2);max-width:30em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-chips li{
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--text-2);background:rgba(255,255,255,.7);
}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  box-shadow:var(--sh-2);
}
.hero-figure{
  position:absolute;right:-8px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 18px;box-shadow:var(--sh-1);max-width:270px;
}
.hero-figure strong{
  font-family:var(--font-title);font-size:30px;color:var(--primary);line-height:1;
}
.hero-figure span{font-size:13px;color:var(--text-2);line-height:1.5;}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.pain-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 24px 22px 28px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.pain-card::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;
  background:var(--accent);border-radius:0 3px 3px 0;
}
.pain-card:hover{border-color:var(--primary);box-shadow:var(--sh-1);transform:translateY(-1px);}
.pain-card h3{font-family:var(--font-body);font-size:17px;font-weight:600;color:var(--text);line-height:1.55;}
.pain-card p{margin-top:6px;font-size:14px;color:var(--text-2);}

/* ---------- 方案卡 ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.solution-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px;
  transition:border-color var(--t),box-shadow var(--t),transform var(--t);
}
.solution-card:hover{border-color:var(--primary);box-shadow:var(--sh-2);transform:translateY(-2px);}
.icon-box{
  width:40px;height:40px;border-radius:10px;background:var(--pill);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.icon-box svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.solution-card h3{font-size:20px;line-height:1.5;}
.solution-card .desc{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.tick-list{margin:18px 0 22px;display:grid;gap:8px;}
.tick-list li{position:relative;padding-left:16px;font-size:14px;color:var(--text-2);}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:1px;background:var(--primary);
}
.solution-card .link-arrow{margin-top:auto;}
.solution-cta{
  grid-column:1 / -1;background:var(--primary-dark);border-radius:var(--r-card);
  padding:32px;display:flex;align-items:center;gap:28px;flex-wrap:wrap;
  color:#fff;position:relative;overflow:hidden;
}
.solution-cta::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:16px 16px;opacity:.35;pointer-events:none;
}
.solution-cta h3{color:#fff;font-size:22px;line-height:1.5;position:relative;}
.solution-cta p{color:rgba(255,255,255,.72);font-size:14px;margin-top:6px;position:relative;}
.solution-cta .btn{position:relative;margin-left:auto;}

/* ---------- 数据区 ---------- */
.stats{background:var(--primary-dark);color:#fff;padding:64px 0;position:relative;overflow:hidden;}
.stats::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:18px 18px;opacity:.35;pointer-events:none;
}
.stats-lead{position:relative;font-size:15px;color:rgba(255,255,255,.7);margin-bottom:32px;}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:0 28px;}
.stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.14);}
.stat-item strong{
  display:block;font-family:var(--font-title);font-size:clamp(36px,4vw,52px);
  line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;
}
.stat-item span{display:block;margin-top:10px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.6;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.step{position:relative;padding-top:8px;}
.step::before{
  content:"";position:absolute;left:0;right:0;top:20px;height:1px;background:var(--line);
}
.step:last-child::before{right:auto;width:0;}
.step-num{
  position:relative;display:inline-block;background:var(--bg);padding-right:14px;
  font-family:var(--font-title);font-size:28px;color:var(--primary);line-height:1;
}
.step h3{margin-top:18px;font-size:18px;font-family:var(--font-body);font-weight:600;color:var(--text);}
.step p{margin-top:8px;font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- 资讯 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.news-head h2{font-size:clamp(24px,2.4vw,30px);line-height:1.4;}
.news-head p{color:var(--text-2);font-size:15px;margin-top:10px;}
.news-grid{display:grid;grid-template-columns:40% 1fr;gap:24px;}
.news-side{display:grid;gap:16px;align-content:start;}
.news-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;color:var(--text);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-1px);box-shadow:var(--sh-2);border-color:var(--line);color:var(--text);}
.news-card:hover .news-title{color:var(--primary);}
.news-card-lg{display:flex;flex-direction:column;height:100%;}
.news-thumb{overflow:hidden;background:var(--bg-soft);}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 220ms ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.02);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:18px;line-height:1.55;color:var(--text);transition:color var(--t);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-desc{font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;
  font-size:13px;color:var(--text-3);padding-top:6px;}
.news-meta .arrow{transition:transform var(--t);color:var(--primary);}
.news-card:hover .news-meta .arrow{transform:translateX(3px);}
.news-card-sm{display:grid;grid-template-columns:150px 1fr;gap:0;}
.news-card-sm .news-thumb img{aspect-ratio:4/3;height:100%;}
.news-card-sm .news-body{padding:18px 20px;gap:8px;}
.news-card-sm .news-title{font-size:16px;}
.news-card-sm .news-desc{font-size:13px;-webkit-line-clamp:2;}
.empty-state{
  min-height:120px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(28,74,69,.04);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:24px;text-align:center;color:var(--text-2);font-size:14px;
}

/* ---------- 表单卡 ---------- */
.form-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field-full{grid-column:1 / -1;}
.field label{font-size:14px;color:var(--text);font-weight:500;}
.field label .req{color:var(--accent);margin-left:2px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;color:var(--text);
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#C3CEC8;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(28,74,69,.10);outline:none;
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--error);}
.field .err-msg{display:none;font-size:12px;color:var(--error);}
.field.error .err-msg{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;}
.chip-radio{position:relative;}
.chip-radio input{position:absolute;opacity:0;width:100%;height:100%;inset:0;cursor:pointer;margin:0;}
.chip-radio span{
  display:inline-block;padding:9px 16px;border:1px solid var(--line);border-radius:999px;
  font-size:14px;color:var(--text-2);background:#fff;transition:all var(--t);
}
.chip-radio input:checked + span{border-color:var(--primary);background:var(--pill);color:var(--primary);font-weight:500;}
.chip-radio input:focus-visible + span{outline:2px solid var(--primary);outline-offset:2px;}
.consent{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.6;}
.consent input{margin-top:3px;width:16px;height:16px;accent-color:var(--primary);flex:none;}
.consent a{text-decoration:underline;text-underline-offset:3px;}
.form-note{font-size:12px;color:var(--text-3);line-height:1.6;}
.form-actions{display:flex;flex-direction:column;gap:12px;}
.form-alert{
  display:none;padding:12px 16px;border-radius:var(--r-btn);font-size:14px;
  background:rgba(46,125,91,.10);color:var(--success);border:1px solid rgba(46,125,91,.25);
}
.form-alert.show{display:block;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:880px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#C3CEC8;}
.faq-item[open]{border-color:var(--primary);box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 56px 18px 22px;position:relative;
  font-size:16px;font-weight:500;color:var(--text);line-height:1.6;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;
  transform:translateY(-50%);transition:transform var(--t);
  background:
    linear-gradient(var(--primary),var(--primary)) center/12px 1.5px no-repeat,
    linear-gradient(var(--primary),var(--primary)) center/1.5px 12px no-repeat;
}
.faq-item[open] summary::after{
  transform:translateY(-50%) rotate(90deg);
  background:linear-gradient(var(--primary),var(--primary)) center/12px 1.5px no-repeat;
}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- 收尾 CTA ---------- */
.cta-bar{
  background:var(--primary-dark);color:#fff;border-radius:var(--r-card);
  padding:44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-bar::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:18px 18px;opacity:.3;pointer-events:none;
}
.cta-bar h2{color:#fff;font-size:clamp(22px,2.4vw,28px);line-height:1.45;position:relative;}
.cta-bar p{color:rgba(255,255,255,.72);font-size:14px;margin-top:8px;position:relative;max-width:44em;}
.cta-bar .btn{position:relative;margin-left:auto;}

/* ---------- 页脚 ---------- */
.footer{background:var(--primary-dark);color:rgba(255,255,255,.72);margin-top:var(--section-y);position:relative;}
.footer::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:20px 20px;opacity:.28;pointer-events:none;
}
.footer-inner{position:relative;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-name{color:#fff;font-family:var(--font-title);font-size:24px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);font-size:12px;letter-spacing:.06em;}
.footer-brand .brand-mark{background:rgba(255,255,255,.9);}
.footer-brand .brand-mark::after{background:var(--primary-dark);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:26em;}
.footer-domain{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.02em;}
.footer h3{font-family:var(--font-body);font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer ul{display:grid;gap:10px;}
.footer ul a{color:rgba(255,255,255,.66);font-size:14px;}
.footer ul a:hover{color:#fff;}
.footer-contact li{font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.footer-contact strong{display:block;font-size:18px;color:#fff;font-family:var(--font-title);letter-spacing:.02em;margin-bottom:2px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#fff;}
.footer-bottom .spacer{margin-left:auto;}

/* ---------- 抽屉表单 ---------- */
.mask{
  position:fixed;inset:0;background:rgba(18,51,47,.45);z-index:110;
  opacity:0;pointer-events:none;transition:opacity 200ms ease-out;
}
.mask.open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:480px;max-width:100%;background:#fff;
  border-radius:16px 0 0 16px;z-index:120;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform 220ms ease-out;
  box-shadow:var(--sh-2);
}
.drawer.open{transform:none;}
.drawer-head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:24px 28px;border-bottom:1px solid var(--line);
}
.drawer-head h2{font-size:20px;line-height:1.5;}
.drawer-head p{font-size:13px;color:var(--text-2);margin-top:6px;}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;cursor:pointer;position:relative;flex:none;
  transition:border-color var(--t),background var(--t);
}
.drawer-close:hover{border-color:var(--primary);background:var(--pill);}
.drawer-close::before,.drawer-close::after{
  content:"";position:absolute;left:50%;top:50%;width:14px;height:1.5px;background:var(--primary-dark);
}
.drawer-close::before{transform:translate(-50%,-50%) rotate(45deg);}
.drawer-close::after{transform:translate(-50%,-50%) rotate(-45deg);}
.drawer-body{padding:24px 28px 32px;overflow:auto;flex:1;}
.drawer .form-grid{grid-template-columns:1fr;}
.skeleton{background:linear-gradient(90deg,#EDF2EE 25%,#F5F8F5 37%,#EDF2EE 63%);background-size:400% 100%;animation:sk 1.2s ease-in-out infinite;border-radius:8px;}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}
body.lock{overflow:hidden;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--section-y:88px;}
}
@media (max-width:1023px){
  :root{--section-y:72px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-media img{aspect-ratio:16/9;}
  .hero-figure{right:12px;bottom:-14px;}
  .solution-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:1fr;}
  .news-card-sm{grid-template-columns:180px 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat-item:nth-child(odd){padding-left:0;}
  .stat-item:nth-child(3){border-left:0;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;left:0;right:0;top:104px;bottom:0;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px 24px 32px;
    overflow:auto;z-index:55;border-top:1px solid var(--line);
    opacity:0;pointer-events:none;transform:translateY(-8px);
    transition:opacity var(--t),transform var(--t);
  }
  body.nav-open .nav-links{opacity:1;pointer-events:auto;transform:none;}
  .nav-links a{font-size:16px;padding:0;line-height:56px;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--primary);font-weight:600;}
  .nav-cta{margin:20px 0 0;}
  .nav-cta .btn{width:100%;}
  .solution-cta .btn,.cta-bar .btn{margin-left:0;}
}
@media (max-width:767px){
  :root{--section-y:56px;}
  .container{padding:0 20px;}
  .topbar-note,.topbar-link,.topbar-sep{display:none;}
  .topbar-inner{justify-content:space-between;}
  .hero-chips li{font-size:13px;}
  .hero-sub{font-size:16px;}
  .pain-grid{grid-template-columns:1fr;}
  .solution-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding:0 0 24px 36px;border-left:1px solid var(--line);margin-left:6px;}
  .step::before{display:none;}
  .step-num{position:absolute;left:-6px;top:0;background:transparent;padding:0;font-size:22px;}
  .step:last-child{border-left-color:transparent;padding-bottom:0;}
  .news-card-sm{grid-template-columns:1fr;}
  .news-card-sm .news-thumb img{aspect-ratio:16/9;}
  .form-panel{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-bar,.solution-cta{padding:28px;}
  .footer-grid{grid-template-columns:1fr;}
  .drawer{top:auto;bottom:0;height:92%;width:100%;border-radius:16px 16px 0 0;transform:translateY(100%);}
  .drawer.open{transform:none;}
  .drawer-head,.drawer-body{padding-left:20px;padding-right:20px;}
  .stats-grid{gap:24px 0;}
  .stat-item{padding:0 18px;}
  .stat-item:nth-child(odd){padding-left:0;}
}
@media (max-width:519px){
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-figure{position:static;margin-top:16px;max-width:none;}
  .form-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .spacer{margin-left:0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --green:#1C4A45;
  --green-deep:#12332F;
  --coral:#E0663B;
  --coral-hover:#C9552F;
  --bg:#F7F5EF;
  --bg-alt:#EDF2EE;
  --card:#FFFFFF;
  --ink:#1B211F;
  --ink-2:#58635F;
  --ink-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --ok:#2E7D5B;
  --warn:#C9812F;
  --err:#B4432F;
  --r-card:12px;
  --r-btn:8px;
  --r-img:10px;
  --r-badge:4px;
  --sh1:0 1px 2px rgba(18,51,47,.06);
  --sh2:0 8px 24px rgba(18,51,47,.08);
  --font-title:"Songti SC","Noto Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--green);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--coral);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--green);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-family:var(--font-title);
  font-size:29px;
  line-height:1.4;
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--green-deep);
}
.section-head p{
  margin-top:14px;
  font-size:15px;
  color:var(--ink-2);
  max-width:44em;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
  font-size:13px;
  color:var(--green);
  letter-spacing:.02em;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  background:var(--coral);
  border-radius:50%;
}

/* ---------- 顶部导航 ---------- */
.site-nav{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:20px;height:20px;
  background:var(--green);
  border-radius:5px;
  transform:rotate(45deg);
  flex:none;
  position:relative;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:6px;
  background:var(--bg);
  border-radius:2px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{
  font-family:var(--font-title);
  font-size:24px;
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--green-deep);
}
.brand-sub{
  font-size:12px;
  color:var(--ink-3);
  letter-spacing:.14em;
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:15px;
}
.nav-links > a{
  position:relative;
  padding:8px 0;
  color:var(--ink-2);
}
.nav-links > a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--coral);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links > a:hover{color:var(--green);}
.nav-links > a:hover::after{transform:scaleX(1);}
.nav-links > a.active{color:var(--green);font-weight:500;}
.nav-links > a.active::after{transform:scaleX(1);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  cursor:pointer;
  padding:0 11px;
}
.nav-toggle span{
  display:block;
  height:2px;
  background:var(--green);
  border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:500;
  line-height:1.2;
  cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{
  background:var(--coral);
  color:#fff;
}
.btn-primary:hover{
  background:var(--coral-hover);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh2);
}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  background:transparent;
  color:var(--green);
  border-color:var(--green);
}
.btn-ghost:hover{
  background:var(--pill);
  color:var(--green);
  transform:translateY(-1px);
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{
  opacity:.4;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--green);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.link-arrow .arrow{transition:transform .18s ease-out;}
.link-arrow:hover{
  color:var(--green);
  border-bottom-color:var(--coral);
}
.link-arrow:hover .arrow{transform:translateX(3px);}

/* ---------- 面包屑 ---------- */
.crumb{
  padding:22px 0 0;
  font-size:13px;
  color:var(--ink-3);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--coral);}
.crumb .sep{color:var(--line);}
.crumb .current{color:var(--green);font-weight:500;}

/* ---------- 分类页头部 ---------- */
.cat-hero{padding:26px 0 72px;}
.cat-hero h1{
  font-family:var(--font-title);
  font-size:36px;
  line-height:1.35;
  font-weight:600;
  letter-spacing:-0.01em;
  color:var(--green-deep);
  margin-top:14px;
  max-width:22em;
}
.cat-hero h1 .brand-inline{
  display:inline-block;
  color:var(--green);
}
.cat-hero .lead{
  margin-top:18px;
  font-size:17px;
  color:var(--ink-2);
  max-width:46em;
}
.hero-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  font-size:13px;
  color:var(--green);
  background:var(--pill);
  border:1px solid transparent;
  border-radius:999px;
}
.banner{
  margin-top:38px;
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:16/6;
  background:var(--bg-alt);
  box-shadow:var(--sh1);
}
.banner img{
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ---------- 方案卡 ---------- */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:28px;
}
.plan-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.plan-card:hover{
  border-color:var(--green);
  box-shadow:var(--sh2);
  transform:translateY(-2px);
}
.plan-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg-alt);
}
.plan-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.plan-card:hover .plan-media img{transform:scale(1.03);}
.plan-body{
  padding:28px;
  display:flex;
  flex-direction:column;
  gap:14px;
  flex:1;
}
.plan-body h3{
  font-family:var(--font-title);
  font-size:21px;
  font-weight:600;
  color:var(--green-deep);
  line-height:1.45;
}
.plan-body .desc{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.7;
}
.plan-points{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-top:2px;
}
.plan-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.6;
}
.plan-points li::before{
  content:"";
  position:absolute;
  left:0;top:8px;
  width:6px;height:6px;
  background:var(--green);
  border-radius:1px;
}
.plan-foot{margin-top:auto;padding-top:8px;}

/* ---------- 对照条 ---------- */
.compare{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  display:grid;
  grid-template-columns:1fr 1fr;
  overflow:hidden;
  box-shadow:var(--sh1);
}
.compare-col{padding:32px;}
.compare-col + .compare-col{border-left:1px solid var(--line);}
.compare-col h3{
  font-family:var(--font-title);
  font-size:20px;
  color:var(--green-deep);
  font-weight:600;
  margin-bottom:6px;
}
.compare-col .tag{
  display:inline-block;
  font-size:12px;
  color:var(--green);
  background:var(--pill);
  border-radius:var(--r-badge);
  padding:3px 9px;
  margin-bottom:18px;
}
.compare-col.is-deep{
  background:var(--green-deep);
  color:#E8EFEA;
}
.compare-col.is-deep h3{color:#fff;}
.compare-col.is-deep .tag{
  color:#F6D9CC;
  background:rgba(224,102,59,.18);
}
.compare-row{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:12px;
  padding:12px 0;
  border-top:1px dashed var(--line);
  font-size:14px;
}
.compare-col.is-deep .compare-row{border-top-color:rgba(255,255,255,.16);}
.compare-row dt{color:var(--ink-3);}
.compare-col.is-deep .compare-row dt{color:rgba(232,239,234,.62);}
.compare-row dd{margin:0;color:var(--ink);}
.compare-col.is-deep .compare-row dd{color:#fff;}

/* ---------- 流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.step{
  position:relative;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.step::before{
  content:"";
  position:absolute;
  top:-4px;left:0;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--coral);
}
.step .num{
  font-family:var(--font-title);
  font-size:26px;
  color:var(--green);
  font-weight:600;
  letter-spacing:.02em;
}
.step h3{
  margin-top:8px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
}
.step p{
  margin-top:8px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:880px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item[open]{
  border-color:var(--green);
  box-shadow:var(--sh1);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--green);}
.faq-item summary::after{
  content:"";
  flex:none;
  width:14px;height:14px;
  background:
    linear-gradient(var(--green),var(--green)) center/14px 2px no-repeat,
    linear-gradient(var(--green),var(--green)) center/2px 14px no-repeat;
  transition:transform .22s ease-out;
}
.faq-item[open] summary{color:var(--green);}
.faq-item[open] summary::after{
  transform:rotate(45deg);
}
.faq-item .answer{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:44em;
}

/* ---------- 表单与 CTA ---------- */
.cta-wrap{
  background:var(--green-deep);
  border-radius:16px;
  padding:56px;
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:48px;
  color:#E8EFEA;
}
.cta-copy h2{
  font-family:var(--font-title);
  font-size:28px;
  line-height:1.4;
  color:#fff;
  font-weight:600;
}
.cta-copy p{
  margin-top:16px;
  font-size:15px;
  line-height:1.8;
  color:rgba(232,239,234,.78);
  max-width:32em;
}
.cta-facts{
  margin-top:28px;
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:14px;
  color:rgba(232,239,234,.86);
}
.cta-facts li{
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.cta-facts li::before{
  content:"";
  flex:none;
  width:6px;height:6px;
  margin-top:8px;
  background:var(--coral);
  border-radius:1px;
}
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  color:var(--ink);
  box-shadow:var(--sh2);
}
.form-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--green-deep);
  margin-bottom:6px;
}
.form-card .form-note{
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:20px;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field-full{grid-column:1/-1;}
.field label{
  font-size:13px;
  font-weight:500;
  color:var(--ink-2);
}
.field input,
.field select,
.field textarea{
  width:100%;
  padding:11px 13px;
  font-size:14px;
  font-family:inherit;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{resize:vertical;min-height:88px;line-height:1.7;}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:#C3CFC9;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--green);
  box-shadow:0 0 0 3px rgba(28,74,69,.12);
}
.field.invalid input,
.field.invalid select{border-color:var(--err);}
.err-msg{
  display:none;
  font-size:12px;
  color:var(--err);
}
.field.invalid .err-msg{display:block;}
.form-submit{margin-top:20px;}
.privacy-line{
  margin-top:12px;
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:12px;
  line-height:1.6;
  color:var(--ink-3);
}
.privacy-line input{
  width:15px;height:15px;
  margin-top:2px;
  accent-color:var(--green);
  flex:none;
}
.privacy-line a{color:var(--green);text-decoration:underline;}
.form-success{
  display:none;
  margin-bottom:16px;
  padding:11px 14px;
  border-radius:var(--r-btn);
  background:rgba(46,125,91,.1);
  border:1px solid rgba(46,125,91,.3);
  color:var(--ok);
  font-size:13px;
}
.form-success.show{display:block;}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--green-deep);
  color:rgba(232,239,234,.76);
  padding:72px 0 28px;
  margin-top:96px;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:18px 18px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer .brand-name{color:#fff;}
.footer .brand-sub{color:rgba(232,239,234,.6);}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  max-width:26em;
  color:rgba(232,239,234,.72);
}
.footer-domain{
  margin-top:14px;
  font-size:13px;
  letter-spacing:.06em;
  color:rgba(232,239,234,.55);
}
.footer h3{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer ul{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.footer a{color:rgba(232,239,234,.76);}
.footer a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{line-height:1.7;font-size:13.5px;}
.footer-contact strong{display:block;color:#fff;font-size:15px;letter-spacing:.02em;}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  font-size:13px;
  color:rgba(232,239,234,.6);
}
.footer-bottom .spacer{flex:1;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .cta-wrap{padding:44px;}
}
@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;
    top:68px;
    left:0;right:0;bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:12px 24px 32px;
    overflow-y:auto;
    transform:translateY(-10px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease-out,transform .2s ease-out;
    z-index:70;
    box-shadow:var(--sh2);
  }
  .nav-links.open{opacity:1;transform:none;pointer-events:auto;}
  .nav-links > a{
    padding:16px 0;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-links > a::after{display:none;}
  .nav-cta{margin-top:20px;width:100%;}
  .nav-cta .btn{width:100%;}
  .section{padding:72px 0;}
  .cta-wrap{grid-template-columns:1fr;gap:32px;padding:36px;}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line);}
  .footer{margin-top:72px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .cat-hero{padding:20px 0 48px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lead{font-size:16px;}
  .section-head h2{font-size:24px;}
  .banner{aspect-ratio:16/9;margin-top:28px;}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{padding:18px 0 18px 22px;border-top:0;border-left:1px solid var(--line);}
  .step::before{top:24px;left:-4.5px;}
  .step:first-child{border-top:0;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:22px;}
  .cta-wrap{padding:26px;border-radius:12px;}
  .cta-copy h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-bottom .spacer{display:none;}
  .compare-col{padding:22px;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:27px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .brand-name{font-size:21px;}
  .faq-item summary{font-size:15px;padding:16px 18px;}
  .faq-item .answer{padding:0 18px 18px;}
  .plan-body{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
  --ink:#1C4A45;
  --ink-deep:#12332F;
  --coral:#E0663B;
  --coral-hover:#C9552F;
  --paper:#F7F5EF;
  --section:#EDF2EE;
  --card:#FFFFFF;
  --text:#1B211F;
  --text-2:#58635F;
  --text-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --success:#2E7D5B;
  --warn:#C9812F;
  --error:#B4432F;
  --r-card:12px;
  --r-btn:8px;
  --r-img:10px;
  --r-badge:4px;
  --sh-1:0 1px 2px rgba(18,51,47,.06);
  --sh-2:0 8px 24px rgba(18,51,47,.08);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color var(--t)}
button{font:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{
  font-family:"Songti SC","Noto Serif SC",serif;
  font-weight:600;
  letter-spacing:-.01em;
  margin:0;
  color:var(--ink-deep);
}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-deep);color:#D6E3DD;font-size:13px}
.topbar-inner{display:flex;align-items:center;gap:14px;height:36px}
.tb-item{display:flex;align-items:center;gap:8px;white-space:nowrap;color:#D6E3DD}
.tb-item strong{color:#fff;font-weight:500}
.tb-divider{width:1px;height:14px;background:rgba(255,255,255,.22)}
.tb-spacer{flex:1}
.tb-link{color:#fff;font-size:13px;border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:1px}
.tb-link:hover{color:#F3C9B6;border-color:#F3C9B6}
@media (max-width:767px){
  .topbar .tb-tip,.topbar .tb-divider,.topbar .tb-cta{display:none}
}

/* ---------- 主导航 ---------- */
.site-nav{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1)}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:18px;height:18px;background:var(--ink);transform:rotate(45deg);border-radius:3px;position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:5px;background:var(--coral);border-radius:1px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-family:"Songti SC","Noto Serif SC",serif;font-size:24px;font-weight:600;color:var(--ink-deep);letter-spacing:-.01em}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.14em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:24px 0;transition:color var(--t)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--coral);transform:scaleX(0);transform-origin:left center;transition:transform var(--t)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-cta{margin-left:6px;display:inline-flex}
.nav-toggle{display:none}
@media (max-width:1023px){
  .nav-inner{gap:16px}
  .nav-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;margin-left:auto;padding:0 11px;
    border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;
  }
  .nav-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px;transition:transform var(--t),opacity var(--t)}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    height:calc(100vh - 68px);overflow-y:auto;
    flex-direction:column;align-items:stretch;gap:0;
    margin:0;padding:8px 20px 28px;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--sh-2);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity var(--t),transform var(--t),visibility var(--t);
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0)}
  .nav-links a{font-size:16px;color:var(--text);padding:0;line-height:56px;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--coral)}
  .nav-cta{margin:22px 0 0;display:block}
  .nav-cta .btn{width:100%}
}

/* ---------- 按钮与徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1;
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:var(--coral-hover);transform:translateY(-1px);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-secondary:hover{background:var(--pill);color:var(--ink)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--text-2)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;line-height:1.6;font-weight:500;
  color:var(--ink);background:var(--pill);
}
.badge-solid{background:var(--ink);color:#fff}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--ink)}
.link-more .arrow{transition:transform var(--t)}
.link-more:hover{color:var(--coral);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.link-more:hover .arrow{transform:translateX(2px)}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding:26px 0 0}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.breadcrumb .sep{color:#BCC7C1}
.breadcrumb .current{
  color:var(--coral);max-width:min(520px,60vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-head{padding:18px 0 30px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:34px;line-height:1.35;margin-top:14px;max-width:860px}
.article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--text-3)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#BCC7C1}

/* ---------- 正文双栏 ---------- */
.article-section{padding:44px 0 20px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-main{min-width:0;max-width:760px}
.article-side{position:sticky;top:92px}

.side-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.side-card + .side-card{margin-top:20px}
.side-card h3{font-size:16px;line-height:1.5;padding-bottom:12px;margin-bottom:14px;border-bottom:1px solid var(--line)}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.side-list a{display:block;font-size:14px;line-height:1.65;color:var(--text-2)}
.side-list a:hover{color:var(--coral)}
.side-list .side-tag{display:block;font-size:12px;color:var(--text-3);margin-bottom:4px}
.side-actions{margin-top:18px}
.side-note{font-size:12px;line-height:1.7;color:var(--text-3);margin-top:14px}

/* ---------- CMS 正文排版 ---------- */
.article-body{font-size:16px;line-height:1.9;color:var(--text);overflow-wrap:break-word;word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1em;max-width:38em}
.article-body h2{
  font-family:"Songti SC","Noto Serif SC",serif;
  font-size:24px;line-height:1.5;color:var(--ink-deep);
  margin:1.6em 0 .8em;padding-left:14px;border-left:4px solid var(--ink);
}
.article-body h3{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:20px;font-weight:600;line-height:1.5;color:var(--text);margin:1.4em 0 .6em}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink);margin:1.2em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--ink)}
.article-body img{max-width:100%;height:auto;border-radius:8px;margin:1.2em 0 .6em}
.article-body figure{margin:1.2em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);margin-top:8px;line-height:1.6}
.article-body blockquote{
  margin:1.4em 0;padding:20px;border-left:4px solid var(--ink);
  background:#EAF2EE;border-radius:0 8px 8px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--coral);text-decoration-thickness:2px}
.article-body strong{color:var(--ink-deep);font-weight:600}
.article-body table{
  display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-collapse:collapse;margin:1.4em 0;font-size:15px;line-height:1.7;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:#EAF2EE;color:var(--ink-deep);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAF8F3}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body code{background:var(--pill);padding:1px 6px;border-radius:4px;font-size:14px;color:var(--ink)}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  min-height:240px;padding:44px 24px;text-align:center;
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-card);
}
.empty-state h2{font-size:20px}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{font-size:28px;line-height:1.4}
.section-head .sub{font-size:14px;color:var(--text-2);margin-top:6px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C6D3CC}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--section)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 220ms ease-out}
.news-card:hover .news-thumb img{transform:scale(1.02)}
.news-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
.news-body h3{font-size:18px;line-height:1.5;color:var(--ink-deep);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t)}
.news-card:hover .news-body h3{color:var(--coral)}
.news-body p{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:10px;font-size:13px;color:var(--text-3)}
.news-foot .arrow{transition:transform var(--t)}
.news-card:hover .news-foot .arrow{transform:translateX(3px);color:var(--ink)}

/* ---------- CTA 区 ---------- */
.cta-wrap{padding:0 0 88px}
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:#E7EFEA;border-radius:16px;
  padding:52px 44px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-panel::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(#FFFFFF 1px,transparent 1px);
  background-size:16px 16px;
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{color:#fff;font-size:28px;line-height:1.4}
.cta-panel p{margin-top:10px;font-size:15px;line-height:1.8;color:#C4D5CE;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-actions .btn-secondary{border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn-secondary:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- 表单抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:200;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(18,51,47,.45);opacity:0;transition:opacity var(--t)}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:480px;max-width:100%;
  background:#fff;padding:32px;overflow-y:auto;
  border-radius:16px 0 0 16px;box-shadow:var(--sh-2);
  transform:translateX(100%);transition:transform 220ms ease-out;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-close{
  position:absolute;top:18px;right:18px;width:36px;height:36px;border-radius:50%;
  font-size:20px;line-height:1;color:var(--text-2);background:var(--section);
  display:inline-flex;align-items:center;justify-content:center;transition:background var(--t),color var(--t);
}
.drawer-close:hover{background:var(--pill);color:var(--ink)}
.drawer-panel h2{font-size:24px;line-height:1.4;padding-right:44px}
.drawer-sub{font-size:14px;color:var(--text-2);margin:8px 0 24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;font-size:15px;color:var(--text);background:#fff;
  border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color var(--t),box-shadow var(--t);font-family:inherit;
}
.field textarea{min-height:92px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(28,74,69,.1)}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--error)}
.field-error{display:none;font-size:12px;color:var(--error);margin-top:6px}
.field.invalid .field-error{display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:8px 14px;font-size:14px;color:var(--text-2);background:#fff;
  border:1px solid var(--line);border-radius:999px;
  transition:border-color var(--t),color var(--t),background var(--t);
}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.is-selected{background:var(--pill);border-color:var(--ink);color:var(--ink);font-weight:500}
.consent{display:flex;align-items:flex-start;gap:8px;font-size:12px;line-height:1.7;color:var(--text-3);margin:4px 0 18px}
.consent input{width:15px;height:15px;margin-top:3px;accent-color:var(--ink);flex:0 0 auto}
.consent a{color:var(--ink);border-bottom:1px solid var(--line)}
.consent a:hover{color:var(--coral)}
.form-status{display:none;padding:12px 14px;border-radius:var(--r-btn);font-size:14px;margin-bottom:16px;line-height:1.7}
.form-status.ok{display:block;background:#E8F3EC;border:1px solid #C6E0D0;color:var(--success)}
.form-status.err{display:block;background:#FBEAE6;border:1px solid #EFCFC7;color:var(--error)}
@media (max-width:600px){
  .drawer-panel{top:auto;bottom:0;height:92vh;width:100%;border-radius:16px 16px 0 0;transform:translateY(100%);padding:26px 20px}
  .drawer.open .drawer-panel{transform:translateY(0)}
}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-deep);color:#C4D5CE;padding:64px 0 0;position:relative}
.footer::before{
  content:"";position:absolute;inset:0;opacity:.04;pointer-events:none;
  background-image:radial-gradient(#FFFFFF 1px,transparent 1px);
  background-size:18px 18px;
}
.footer-inner{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-name{color:#fff;font-size:24px;display:block}
.footer-brand .brand-sub{color:#8FA9A0;font-size:12px;letter-spacing:.14em;display:block;margin-top:4px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:#B3C7BF;max-width:340px}
.footer-domain{margin-top:14px;font-size:13px;color:#8FA9A0;letter-spacing:.02em}
.footer h3{font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
.footer ul li{margin-bottom:11px;font-size:14px;line-height:1.7}
.footer ul li a{color:#B3C7BF}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-contact li{color:#B3C7BF;font-size:14px;line-height:1.8}
.footer-contact strong{display:block;color:#fff;font-size:18px;font-family:"Songti SC","Noto Serif SC",serif;letter-spacing:.02em;margin-bottom:2px}
.footer-bottom{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:#8FA9A0;
}
.footer-bottom .spacer{flex:1}
.footer-bottom a{color:#B3C7BF}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}

@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-main{max-width:100%}
  .article-side{position:static}
  .article-head h1{font-size:30px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
  .cta-panel{padding:40px 28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-section{padding:32px 0 12px}
  .article-head h1{font-size:27px;line-height:1.4}
  .article-body{font-size:15.5px}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:18px}
  .article-body p{max-width:100%}
  .related{padding:40px 0 56px}
  .cta-wrap{padding:0 0 56px}
  .cta-panel{padding:32px 22px;border-radius:12px}
  .cta-panel h2{font-size:23px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .footer{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-desc{max-width:100%}
  .breadcrumb .current{max-width:70vw}
}
@media (max-width:480px){
  .btn{width:100%}
  .nav-cta .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .news-body{padding:18px}
  .article-meta{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --ink:#1C4A45;
  --ink-deep:#12332F;
  --coral:#E0663B;
  --coral-hover:#C9552F;
  --paper:#F7F5EF;
  --section:#EDF2EE;
  --white:#FFFFFF;
  --text:#1B211F;
  --text-2:#58635F;
  --text-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --success:#2E7D5B;
  --warn:#C9812F;
  --error:#B4432F;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-img:10px;
  --radius-badge:4px;
  --shadow-1:0 1px 2px rgba(18,51,47,.06);
  --shadow-2:0 8px 24px rgba(18,51,47,.08);
  --ease:200ms ease-out;
  --font-title:"Songti SC","Noto Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-title);font-weight:600;letter-spacing:-.01em;margin:0;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
.container{max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.78);font-size:13px;}
.topbar-inner{display:flex;align-items:center;gap:16px;height:36px;}
.topbar .tb-domain{color:#fff;font-weight:500;letter-spacing:.02em;}
.topbar .tb-sep{width:1px;height:12px;background:rgba(255,255,255,.24);}
.topbar .tb-tip{color:rgba(255,255,255,.7);}
.topbar .tb-right{margin-left:auto;display:flex;align-items:center;gap:16px;}
.topbar .tb-phone{color:#fff;font-variant-numeric:tabular-nums;}
.topbar .tb-link{color:var(--coral);font-weight:500;}
.topbar .tb-link:hover{color:#fff;}

/* ---------- 主导航 ---------- */
.site-nav{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:80;}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:22px;height:22px;flex:0 0 auto;
  background:var(--ink);
  clip-path:polygon(50% 0%,100% 50%,50% 100%,0% 50%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;background:var(--coral);
  clip-path:polygon(50% 0%,100% 50%,50% 100%,0% 50%);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-name{font-family:var(--font-title);font-size:24px;font-weight:600;color:var(--ink-deep);letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.14em;margin-top:2px;}
.brand:hover .brand-name{color:var(--ink);}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;line-height:1.4;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--coral);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:500;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{display:flex;align-items:center;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;
  margin-left:auto;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--white);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);margin:0 auto;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-size:15px;font-weight:500;line-height:1;
  padding:14px 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--coral);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--coral-hover);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-secondary:hover{background:var(--pill);color:var(--ink);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--ink);font-size:15px;font-weight:500;}
.link-arrow .ar{transition:transform var(--ease);}
.link-arrow:hover{color:var(--coral);}
.link-arrow:hover .ar{transform:translateX(3px);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.4;}
.section-head p{margin-top:12px;color:var(--text-2);font-size:16px;max-width:620px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;
  color:var(--ink);background:var(--pill);border:1px solid rgba(28,74,69,.16);
  padding:5px 12px;border-radius:999px;margin-bottom:18px;
}
.badge{
  display:inline-block;font-size:12px;font-weight:500;letter-spacing:.04em;
  color:var(--ink);background:var(--pill);border-radius:var(--radius-badge);
  padding:3px 8px;line-height:1.6;
}
.badge-coral{color:var(--coral);background:rgba(224,102,59,.1);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:28px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--coral);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink);font-weight:500;}

/* ---------- 分类页头 ---------- */
.case-hero{padding:8px 0 0;}
.case-hero h1{font-size:44px;line-height:1.25;margin-top:18px;max-width:860px;}
.case-hero .lead{margin-top:18px;font-size:18px;color:var(--text-2);max-width:760px;line-height:1.8;}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:24px;}
.chip-static{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink);
  background:var(--white);border:1px solid var(--line);border-radius:999px;padding:7px 14px;
}
.hero-banner{
  margin-top:36px;border-radius:var(--radius-card);overflow:hidden;
  aspect-ratio:16/6;box-shadow:var(--shadow-1);background:var(--section);
}
.hero-banner img{width:100%;height:100%;object-fit:cover;}

/* ---------- 筛选条 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:48px 0 8px;}
.filter-bar .filter-label{font-size:14px;color:var(--text-3);margin-right:4px;}
.filter-chip{
  font-size:14px;color:var(--text-2);background:var(--white);border:1px solid var(--line);
  border-radius:999px;padding:8px 16px;transition:all var(--ease);cursor:pointer;
}
.filter-chip:hover{border-color:var(--ink);color:var(--ink);}
.filter-chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ---------- 案例图文交错 ---------- */
.case-list{display:flex;flex-direction:column;gap:64px;margin-top:40px;}
.case-row{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.case-row .case-media{
  border-radius:var(--radius-img);overflow:hidden;aspect-ratio:4/3;
  box-shadow:var(--shadow-1);background:var(--section);
}
.case-row .case-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.case-row:hover .case-media img{transform:scale(1.02);}
.case-row.rev .case-media{order:2;}
.case-row.rev .case-body{order:1;}
.case-body h3{font-size:22px;line-height:1.5;margin:14px 0 12px;}
.case-body p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.case-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line);}
.case-stats .num{
  font-family:var(--font-title);font-size:34px;line-height:1.1;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.case-stats .num small{font-size:16px;margin-left:2px;font-family:var(--font-body);}
.case-stats .lbl{font-size:13.5px;color:var(--text-3);margin-top:6px;}

/* ---------- 数据通栏 ---------- */
.stat-band{background:var(--ink-deep);color:#fff;position:relative;overflow:hidden;}
.stat-band::before{
  content:"";position:absolute;inset:0;opacity:.04;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:18px 18px;pointer-events:none;
}
.stat-band .container{position:relative;z-index:1;}
.stat-band h2{color:#fff;font-size:28px;line-height:1.4;max-width:640px;}
.stat-band .band-sub{color:rgba(255,255,255,.66);margin-top:12px;font-size:15px;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:48px;}
.stat-item{padding:0 24px;border-left:1px solid rgba(255,255,255,.16);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item .val{
  font-family:var(--font-title);font-size:48px;line-height:1.1;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-item .val small{font-size:18px;font-family:var(--font-body);margin-left:2px;}
.stat-item .cap{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}

/* ---------- 客户反馈 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;gap:16px;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(28,74,69,.28);}
.quote-card p{font-size:15.5px;line-height:1.85;color:var(--text-2);}
.quote-meta{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;background:var(--pill);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-title);font-size:16px;
}
.quote-meta .name{font-size:14px;color:var(--text);font-weight:500;}
.quote-meta .role{font-size:12.5px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:10px;
  overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:rgba(28,74,69,.3);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 22px;font-size:16px;font-weight:500;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--ink);}
.faq-item.is-open .faq-q{color:var(--ink);}
.faq-icon{position:relative;width:14px;height:14px;flex:0 0 auto;transition:transform var(--ease);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;
}
.faq-icon::before{left:0;top:6px;width:14px;height:2px;}
.faq-icon::after{left:6px;top:0;width:2px;height:14px;transition:opacity var(--ease);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--section);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:28px;line-height:1.4;max-width:560px;}
.cta-band p{margin-top:10px;color:var(--text-2);font-size:15.5px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-deep);color:rgba(255,255,255,.72);margin-top:96px;position:relative;overflow:hidden;}
.footer::before{
  content:"";position:absolute;inset:0;opacity:.035;
  background-image:radial-gradient(#fff 1px,transparent 1px);
  background-size:18px 18px;pointer-events:none;
}
.footer-inner{position:relative;z-index:1;padding:64px 24px 0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.footer .brand-name{color:#fff;font-size:22px;}
.footer .brand-sub{color:rgba(255,255,255,.5);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.64);max-width:340px;}
.footer-domain{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.04em;}
.footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--font-body);font-weight:600;}
.footer ul li{margin-bottom:10px;font-size:14px;line-height:1.7;}
.footer ul li a{color:rgba(255,255,255,.68);}
.footer ul li a:hover{color:var(--coral);}
.footer-contact li strong{display:block;color:#fff;font-size:15px;font-variant-numeric:tabular-nums;}
.footer-bottom{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom .spacer{flex:1;}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--coral);}

/* ---------- 表单弹层 ---------- */
.overlay{
  position:fixed;inset:0;background:rgba(18,51,47,.45);z-index:120;
  opacity:0;pointer-events:none;transition:opacity var(--ease);
}
.overlay.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:480px;max-width:100%;background:var(--white);
  z-index:130;transform:translateX(100%);transition:transform 220ms ease-out;
  display:flex;flex-direction:column;box-shadow:var(--shadow-2);border-radius:16px 0 0 16px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;padding:28px 28px 0;}
.drawer-head h2{font-size:22px;line-height:1.4;}
.drawer-head p{font-size:13.5px;color:var(--text-3);margin-top:6px;}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:18px;line-height:1;
  transition:all var(--ease);
}
.drawer-close:hover{background:var(--pill);color:var(--ink);border-color:var(--ink);}
.drawer-body{padding:22px 28px 32px;overflow-y:auto;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:6px;font-weight:500;}
.field input[type="text"],.field input[type="tel"],.field textarea{
  width:100%;padding:11px 13px;font-family:inherit;font-size:15px;color:var(--text);
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{resize:vertical;min-height:88px;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(28,74,69,.1);}
.field.has-error input,.field.has-error textarea{border-color:var(--error);}
.field .err{display:none;font-size:12px;color:var(--error);margin-top:6px;}
.field.has-error .err{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip-option{
  font-size:13.5px;color:var(--text-2);border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;background:var(--white);transition:all var(--ease);
}
.chip-option:hover{border-color:var(--ink);color:var(--ink);}
.chip-option.is-checked{background:var(--pill);border-color:var(--ink);color:var(--ink);font-weight:500;}
.consent{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--text-3);line-height:1.6;margin:14px 0 16px;}
.consent input{margin-top:3px;accent-color:var(--ink);}
.consent a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.form-note{font-size:12.5px;color:var(--text-3);text-align:center;margin-top:12px;line-height:1.7;}
.alert{display:none;border-radius:var(--radius-btn);padding:12px 14px;font-size:14px;margin-bottom:16px;}
.alert.is-ok{display:block;background:rgba(46,125,91,.1);color:var(--success);border:1px solid rgba(46,125,91,.24);}
.alert.is-err{display:block;background:rgba(180,67,47,.08);color:var(--error);border:1px solid rgba(180,67,47,.24);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:100%;}
}
@media (max-width:1023px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;left:0;right:0;top:104px;bottom:0;background:var(--white);
    flex-direction:column;align-items:flex-start;gap:0;margin:0;padding:12px 24px 32px;
    border-top:1px solid var(--line);overflow-y:auto;z-index:70;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-links a{width:100%;line-height:56px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--ink);}
  .nav-cta{width:100%;margin-top:20px;}
  .nav-cta .btn{width:100%;}
  .case-hero h1{font-size:36px;}
  .section{padding:72px 0;}
  .case-row{grid-template-columns:1fr;gap:28px;}
  .case-row.rev .case-media,.case-row.rev .case-body{order:0;}
  .quote-grid{grid-template-columns:1fr 1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;row-gap:36px;}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .stat-item:nth-child(even){padding-left:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .topbar .tb-tip,.topbar .tb-sep,.topbar .tb-link{display:none;}
  .topbar-inner{height:34px;font-size:12px;}
  .nav-links{top:102px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .case-hero h1{font-size:30px;line-height:1.3;}
  .case-hero .lead{font-size:16px;}
  .section-head h2{font-size:24px;}
  .stat-band h2{font-size:22px;}
  .cta-band h2{font-size:22px;}
  .stat-item .val{font-size:38px;}
  .quote-grid{grid-template-columns:1fr;}
  .case-stats{gap:16px;}
  .drawer{width:100%;border-radius:0;top:auto;height:100%;transform:translateY(100%);}
  .drawer.is-open{transform:translateY(0);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-inner{padding:48px 20px 0;}
}
@media (max-width:479px){
  .container{padding:0 20px;}
  .btn{width:100%;}
  .nav-cta .btn{width:100%;}
  .cta-actions{width:100%;}
  .case-hero h1{font-size:26px;}
  .filter-bar{gap:8px;}
  .filter-chip{font-size:13px;padding:7px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --ink:#1C4A45;
  --ink-deep:#12332F;
  --coral:#E0663B;
  --coral-hover:#C9552F;
  --paper:#F7F5EF;
  --section:#EDF2EE;
  --white:#FFFFFF;
  --text:#1B211F;
  --text-2:#58635F;
  --text-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --success:#2E7D5B;
  --warn:#C9812F;
  --danger:#B4432F;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-img:10px;
  --r-badge:4px;
  --r-drawer:16px;
  --shadow-1:0 1px 2px rgba(18,51,47,.06);
  --shadow-2:0 8px 24px rgba(18,51,47,.08);
  --ease:200ms ease-out;
  --font-title:"Songti SC","Noto Serif SC","Source Han Serif SC",serif;
  --font-body:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,sans-serif;
  --container:1180px;
  --sec-y:104px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.lock{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--coral);}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-title);font-weight:600;letter-spacing:-.01em;color:var(--ink-deep);}
p{margin:0;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- topbar ---------- */
.topbar{background:var(--ink-deep);color:#C8D6D1;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:20px;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;}
.topbar-domain{color:#EAF1EE;letter-spacing:.02em;}
.topbar-sep{width:1px;height:12px;background:rgba(255,255,255,.24);display:inline-block;}
.topbar a{color:#EAF1EE;}
.topbar a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}

/* ---------- header ---------- */
.site-nav{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{width:24px;height:24px;border-radius:50% 50% 50% 4px;background:var(--ink);transform:rotate(-45deg);position:relative;flex:none;}
.brand-mark::after{content:"";position:absolute;width:6px;height:6px;border-radius:50%;background:var(--paper);top:6px;right:6px;}
.brand-text{display:inline-flex;flex-direction:column;line-height:1.1;}
.brand-name{font-family:var(--font-title);font-size:24px;font-weight:600;color:var(--ink-deep);letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;line-height:1.2;}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--coral);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:500;}
.nav-cta{margin-left:6px;}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);flex-direction:column;justify-content:center;align-items:center;gap:5px;background:var(--white);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-deep);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15px;font-weight:500;padding:14px 26px;border:1px solid transparent;cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);}
.btn-primary{background:var(--coral);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--coral-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--pill);color:var(--ink);}
.btn-light{background:#fff;color:var(--ink-deep);border-color:#fff;}
.btn-light:hover{background:#EDF2EE;color:var(--ink-deep);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none!important;box-shadow:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--ink);font-weight:500;}
.link-more::after{content:"→";transition:transform var(--ease);}
.link-more:hover{color:var(--coral);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;}
.link-more:hover::after{transform:translateX(2px);}

/* ---------- generic ---------- */
.section{padding:var(--sec-y) 0;}
.sec-soft{background:var(--section);}
.sec-dark{background:var(--ink-deep);color:#D6E2DD;}
.sec-dark h2,.sec-dark h3{color:#fff;}
.sec-head{max-width:700px;margin-bottom:44px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:var(--ink);background:var(--pill);border:1px solid rgba(28,74,69,.16);border-radius:999px;padding:6px 14px;margin-bottom:18px;}
h2.sec-title{font-size:29px;line-height:1.4;}
.sec-sub{margin-top:14px;font-size:16px;color:var(--text-2);line-height:1.75;}
.sec-dark .sec-sub{color:#A9BDB7;}
.badge{display:inline-block;font-size:12px;letter-spacing:.05em;padding:4px 10px;border-radius:var(--r-badge);background:var(--pill);color:var(--ink);border:1px solid rgba(28,74,69,.14);}
.badge-warm{background:rgba(224,102,59,.1);color:var(--coral-hover);border-color:rgba(224,102,59,.24);}

/* ---------- page head ---------- */
.page-head{padding:36px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:26px;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--coral);}
.breadcrumb span.current{color:var(--ink);}
.page-head-grid{display:grid;grid-template-columns:1fr 0.92fr;gap:48px;align-items:center;}
.page-head h1{font-size:38px;line-height:1.32;margin:16px 0 18px;}
.page-head-sub{font-size:17px;color:var(--text-2);max-width:520px;}
.page-head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.page-head-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:16/11;background:var(--section);}
.page-head-media img{width:100%;height:100%;object-fit:cover;}
.media-note{position:absolute;left:18px;bottom:18px;right:18px;background:#fff;border-radius:10px;padding:14px 16px;display:flex;align-items:center;gap:14px;box-shadow:var(--shadow-2);}
.media-note strong{font-family:var(--font-title);font-size:26px;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1;}
.media-note span{font-size:13px;color:var(--text-2);line-height:1.5;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{content:"";position:absolute;left:19px;top:12px;bottom:12px;width:1px;background:var(--line);}
.tl-item{position:relative;padding:0 0 34px 68px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--font-title);font-size:17px;color:var(--ink);box-shadow:var(--shadow-1);transition:border-color var(--ease),color var(--ease);}
.tl-item:hover .tl-dot{border-color:var(--ink);}
.tl-title{font-size:20px;line-height:1.5;margin-bottom:6px;font-family:var(--font-title);color:var(--ink-deep);}
.tl-desc{font-size:15px;color:var(--text-2);max-width:660px;}
.tl-meta{display:inline-block;font-size:12px;color:var(--coral-hover);background:rgba(224,102,59,.1);border-radius:var(--r-badge);padding:2px 8px;margin-left:10px;vertical-align:2px;}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.flow-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3;background:#fff;}
.flow-media img{width:100%;height:100%;object-fit:cover;}
.flow-list{display:grid;gap:18px;margin-top:8px;}
.flow-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--shadow-1);transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);}
.flow-item:hover{border-color:var(--ink);box-shadow:var(--shadow-2);transform:translateY(-1px);}
.flow-item h3{font-size:18px;margin-bottom:6px;}
.flow-item p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:10px 26px;border-left:1px solid rgba(255,255,255,.16);}
.stat:first-child{border-left:0;padding-left:0;}
.stat-num{font-family:var(--font-title);font-size:48px;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.stat-num small{font-size:20px;margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:#A9BDB7;}

/* ---------- checklist ---------- */
.check-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:36px;box-shadow:var(--shadow-1);}
.check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 40px;}
.check-list li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:var(--text-2);padding-bottom:14px;border-bottom:1px dashed var(--line);}
.check-mark{flex:none;width:20px;height:20px;border-radius:6px;background:var(--pill);position:relative;margin-top:3px;}
.check-mark::after{content:"";position:absolute;left:6px;top:4px;width:6px;height:10px;border-right:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(42deg);}
.check-hint{margin-top:26px;font-size:13px;color:var(--text-3);}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:12px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item:hover{border-color:rgba(28,74,69,.4);}
.faq-item.open{border-color:var(--ink);box-shadow:var(--shadow-1);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;padding:18px 22px;text-align:left;font-size:16px;font-weight:500;color:var(--text);line-height:1.6;transition:color var(--ease);}
.faq-q:hover{color:var(--ink);}
.faq-item.open .faq-q{color:var(--ink);}
.faq-icon{position:relative;flex:none;width:14px;height:14px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);border-radius:1px;transition:transform var(--ease),opacity var(--ease);}
.faq-icon::before{left:0;top:6px;width:14px;height:2px;}
.faq-icon::after{left:6px;top:0;width:2px;height:14px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- cta + form ---------- */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.cta-info h2{color:#fff;font-size:30px;line-height:1.4;}
.cta-info p{margin-top:16px;color:#A9BDB7;font-size:15px;max-width:440px;}
.cta-points{margin-top:28px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#D6E2DD;}
.cta-points li::before{content:"";flex:none;width:6px;height:6px;background:var(--coral);border-radius:1px;margin-top:9px;}
.cta-phone{margin-top:30px;font-size:14px;color:#A9BDB7;}
.cta-phone strong{display:block;font-family:var(--font-title);font-size:26px;color:#fff;letter-spacing:.02em;margin-bottom:4px;}
.form-card{background:#fff;border-radius:var(--r-card);padding:32px;box-shadow:var(--shadow-2);}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--text-3);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px;font-weight:500;}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-input);background:#FCFCFA;transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);}
.field textarea{min-height:88px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink);background:#fff;box-shadow:0 0 0 3px rgba(28,74,69,.1);}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--danger);background:#FDF6F4;}
.field-error{display:none;font-size:12px;color:var(--danger);margin-top:6px;}
.field.invalid .field-error{display:block;}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip{position:relative;}
.chip input{position:absolute;opacity:0;width:1px;height:1px;}
.chip span{display:inline-block;padding:8px 14px;font-size:13px;color:var(--text-2);background:#FCFCFA;border:1px solid var(--line);border-radius:999px;cursor:pointer;transition:all var(--ease);}
.chip input:checked + span{background:var(--pill);border-color:var(--ink);color:var(--ink);font-weight:500;}
.chip input:focus-visible + span{outline:2px solid var(--ink);outline-offset:2px;}
.agree{display:flex;align-items:flex-start;gap:9px;font-size:12.5px;color:var(--text-3);line-height:1.6;margin:6px 0 18px;}
.agree input{margin-top:3px;flex:none;width:15px;height:15px;accent-color:var(--ink);}
.agree a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.form-success{display:none;background:rgba(46,125,91,.1);border:1px solid rgba(46,125,91,.3);color:var(--success);border-radius:var(--r-input);padding:12px 14px;font-size:13.5px;margin-bottom:16px;}
.form-success.show{display:block;}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;display:none;}
.drawer.open{display:block;}
.drawer-mask{position:absolute;inset:0;background:rgba(18,51,47,.45);animation:fadeIn 200ms ease-out;}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:480px;max-width:100%;background:#fff;border-radius:var(--r-drawer) 0 0 var(--r-drawer);padding:30px 32px 36px;overflow-y:auto;box-shadow:var(--shadow-2);animation:slideIn 220ms ease-out;}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.drawer-head h3{font-size:22px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);transition:all var(--ease);}
.drawer-close:hover{border-color:var(--ink);color:var(--ink);background:var(--pill);}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideIn{from{transform:translateX(28px);opacity:.6}to{transform:translateX(0);opacity:1}}

/* ---------- footer ---------- */
.footer{background:var(--ink-deep);color:#A9BDB7;padding:64px 0 26px;position:relative;}
.footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);background-size:22px 22px;opacity:.05;pointer-events:none;}
.footer-inner{position:relative;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8FA6A0;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:#A9BDB7;max-width:320px;}
.footer-domain{margin-top:14px;font-size:13px;color:#7E958F;letter-spacing:.04em;}
.footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-family:var(--font-body);font-weight:600;}
.footer ul li{margin-bottom:10px;font-size:14px;line-height:1.7;}
.footer ul li a{color:#A9BDB7;}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{color:#9FB3AD;}
.footer-contact strong{color:#fff;font-family:var(--font-title);font-size:18px;display:block;margin-bottom:2px;}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:13px;color:#8FA6A0;}
.footer-bottom .spacer{flex:1;}
.footer-bottom a{color:#A9BDB7;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--container:100%;}
}
@media (max-width:1023px){
  :root{--sec-y:72px;}
  .nav-toggle{display:flex;}
  .nav-links{position:fixed;top:68px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 24px 28px;overflow-y:auto;display:none;border-top:1px solid var(--line);}
  .nav-links.open{display:flex;}
  .nav-links a{font-size:16px;padding:16px 0;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-links a.active{color:var(--coral);}
  .nav-cta{margin:20px 0 0;}
  .nav-cta .btn{width:100%;}
  .page-head-grid{grid-template-columns:1fr;gap:32px;}
  .page-head h1{font-size:34px;}
  .flow-grid{grid-template-columns:1fr;gap:32px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat{padding:0 20px;}
  .stat:nth-child(3){border-left:0;padding-left:0;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .check-list{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  .container{padding:0 20px;}
  .topbar-inner{font-size:12px;}
  .topbar-left .topbar-hint,.topbar-sep{display:none;}
  .page-head{padding-top:24px;}
  .page-head h1{font-size:30px;}
  .page-head-sub{font-size:16px;}
  h2.sec-title{font-size:24px;}
  .sec-sub{font-size:15px;}
  .tl-item{padding-left:56px;}
  .stat-num{font-size:38px;}
  .check-card{padding:24px;}
  .form-card{padding:24px;}
  .drawer-panel{width:100%;height:auto;top:auto;bottom:0;max-height:92vh;border-radius:var(--r-drawer) var(--r-drawer) 0 0;padding:24px 20px 30px;animation:slideUp 220ms ease-out;}
  @keyframes slideUp{from{transform:translateY(28px);opacity:.7}to{transform:translateY(0);opacity:1}}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer{padding-top:48px;}
  .breadcrumb{font-size:12px;}
}
@media (max-width:520px){
  .page-head-actions{flex-direction:column;align-items:stretch;}
  .page-head-actions .btn{width:100%;}
  .stats{grid-template-columns:1fr;}
  .stat{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.14);padding-top:18px;}
  .stat:first-child{border-top:0;padding-top:0;}
  .btn{width:100%;}
  .link-more{width:auto;}
  .footer-bottom{font-size:12px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#1C4A45;
  --ink-deep:#12332F;
  --coral:#E0663B;
  --coral-hover:#C9552F;
  --paper:#F7F5EF;
  --section:#EDF2EE;
  --card:#FFFFFF;
  --text:#1B211F;
  --text-2:#58635F;
  --text-3:#8A9490;
  --line:#DCE3DE;
  --pill:rgba(28,74,69,.08);
  --success:#2E7D5B;
  --warn:#C9812F;
  --error:#B4432F;
  --r-card:12px;
  --r-btn:8px;
  --r-input:8px;
  --r-img:10px;
  --r-badge:4px;
  --sh-1:0 1px 2px rgba(18,51,47,.06);
  --sh-2:0 8px 24px rgba(18,51,47,.08);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  margin:0;
  font-family:"Songti SC","Noto Serif SC",serif;
  font-weight:600;
  letter-spacing:-.01em;
  color:var(--text);
}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--ink);text-decoration:none;transition:color var(--t)}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-alt{background:var(--section)}
.section-title{font-size:28px;line-height:1.4}
.section-sub{font-size:15px;color:var(--text-2);margin-top:10px;max-width:46em}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--ink-deep);color:rgba(255,255,255,.78)}
.topbar-inner{display:flex;align-items:center;gap:14px;height:36px;font-size:13px}
.topbar .domain{color:#fff;letter-spacing:.03em}
.topbar .divider{width:1px;height:14px;background:rgba(255,255,255,.24)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.topbar-right a{color:#fff}
.topbar-right a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ---------- 主导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  position:relative;width:22px;height:22px;flex:0 0 22px;
  background:var(--ink);border-radius:4px;transform:rotate(45deg);
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:1px;background:#fff;
}
.brand-text{display:flex;align-items:baseline;gap:6px}
.brand-name{font-family:"Songti SC","Noto Serif SC",serif;font-size:24px;font-weight:600;color:var(--ink);letter-spacing:.02em;line-height:1}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px}
.nav-links > a{
  color:var(--text-2);
  padding:23px 0;
  border-bottom:2px solid transparent;
  transition:color var(--t),border-color var(--t);
}
.nav-links > a:hover{color:var(--ink)}
.nav-links > a.active{color:var(--ink);border-bottom-color:var(--coral);font-weight:500}
.nav-cta{margin-left:6px}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:1px;transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1.4;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:var(--coral-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--pill)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-loading{opacity:.4;cursor:not-allowed;transform:none}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.link-arrow::after{content:"→";transition:transform var(--t)}
.link-arrow:hover{border-bottom-color:var(--ink);transform:translateY(-0px)}
.link-arrow:hover::after{transform:translateX(2px)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);padding-top:28px}
.crumbs a{color:var(--text-2)}
.crumbs a:hover{color:var(--coral)}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--ink)}

/* ---------- 页面头 ---------- */
.page-head{padding:22px 0 8px}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  background:#fff;color:var(--ink);font-size:13px;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--coral);transform:rotate(45deg)}
.page-title{font-size:36px;line-height:1.35;margin-top:20px}
.page-title .h1-sub{display:block;font-size:21px;font-weight:500;color:var(--text-2);margin-top:10px;letter-spacing:.01em}
.page-lead{font-size:16px;line-height:1.85;color:var(--text-2);margin-top:18px;max-width:38em}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border:1px solid var(--line);border-radius:999px;
  background:#fff;color:var(--text-2);font-size:13px;
}
.chip::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ink);opacity:.55}
.head-figure{
  border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-1);background:#fff;
}
.head-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- FAQ 布局 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start}
.faq-group{margin-top:36px}
.faq-group:first-of-type{margin-top:28px}
.faq-group-title{
  display:flex;align-items:center;gap:10px;
  font-size:20px;line-height:1.5;margin-bottom:16px;
}
.group-index{
  font-family:"Songti SC","Noto Serif SC",serif;font-size:13px;font-weight:600;
  color:var(--ink);background:var(--pill);border-radius:var(--r-badge);
  padding:3px 8px;letter-spacing:.04em;
}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#C6D6D0}
.faq-item[open]{border-color:#C6D6D0;box-shadow:var(--sh-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:500;color:var(--text);
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink)}
.faq-item[open] summary{color:var(--ink)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:1px;
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--text-2)}

/* ---------- 联系卡 ---------- */
.contact-card{
  position:sticky;top:96px;
  background:var(--section);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);
}
.contact-card h2{font-size:19px;line-height:1.5}
.contact-sub{font-size:13px;color:var(--text-2);margin-top:8px;line-height:1.75}
.contact-phone{
  display:block;font-family:"Songti SC","Noto Serif SC",serif;font-size:26px;
  color:var(--ink);letter-spacing:.02em;margin:16px 0 4px;font-variant-numeric:tabular-nums;
}
.contact-phone:hover{color:var(--coral)}
.contact-meta{font-size:13px;color:var(--text-2);line-height:1.85}
.contact-list{margin:18px 0 22px;border-top:1px solid var(--line);padding-top:16px}
.contact-list li{
  font-size:13px;color:var(--text-2);line-height:1.8;
  display:flex;gap:8px;align-items:flex-start;padding:4px 0;
}
.contact-list li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--ink);opacity:.5;margin-top:9px;flex:0 0 5px}
.privacy-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:12px}
.privacy-note a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.privacy-note a:hover{color:var(--coral)}

/* ---------- 相关入口 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px}
.related-card{
  display:flex;flex-direction:column;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#C6D6D0}
.related-card .rc-label{
  align-self:flex-start;font-size:12px;color:var(--ink);background:var(--pill);
  border-radius:var(--r-badge);padding:3px 9px;letter-spacing:.04em;
}
.related-card h3{font-size:18px;line-height:1.5;transition:color var(--t)}
.related-card:hover h3{color:var(--ink)}
.related-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.related-card .link-arrow{margin-top:6px}

/* ---------- 隐私说明 ---------- */
.privacy-block{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:32px}
.privacy-block h2{font-size:22px}
.privacy-block p{font-size:14px;color:var(--text-2);line-height:1.85;margin-top:12px;max-width:60em}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 88px}
.cta-band{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:var(--ink-deep);border-radius:16px;padding:48px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:20px 20px;opacity:.35;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:26px;line-height:1.45}
.cta-band p{color:rgba(255,255,255,.72);font-size:14px;margin-top:10px;line-height:1.8;max-width:34em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-deep);color:rgba(255,255,255,.72);padding:64px 0 24px;position:relative;overflow:hidden}
.footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.22;
}
.footer-inner{position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:40px}
.footer h3{color:#fff;font-size:15px;margin-bottom:14px;font-family:"PingFang SC","Microsoft YaHei",sans-serif;font-weight:600;letter-spacing:.02em}
.footer-brand .brand-name{color:#fff;font-size:24px}
.footer-brand .brand-sub{color:rgba(255,255,255,.58)}
.footer-desc{font-size:14px;line-height:1.85;margin:14px 0 10px;max-width:32em;color:rgba(255,255,255,.7)}
.footer-domain{font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.03em}
.footer ul li{font-size:14px;line-height:2.1}
.footer ul li a{color:rgba(255,255,255,.72)}
.footer ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:block;line-height:1.9;margin-bottom:6px;color:rgba(255,255,255,.72)}
.footer-contact strong{color:#fff;font-weight:600;font-variant-numeric:tabular-nums;margin-right:6px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:48px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:#fff}
.footer-bottom .spacer{flex:1}

/* ---------- 表单抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(18,51,47,.45);
  opacity:0;pointer-events:none;transition:opacity var(--t);z-index:90;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:480px;max-width:100%;
  background:#fff;z-index:100;padding:28px;
  border-radius:16px 0 0 16px;overflow-y:auto;
  transform:translateX(100%);transition:transform 220ms ease-out;
  box-shadow:var(--sh-2);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:6px}
.drawer-head h2{font-size:21px;line-height:1.4}
.drawer-desc{font-size:13px;color:var(--text-2);line-height:1.75;margin-bottom:22px}
.drawer-close{
  width:34px;height:34px;flex:0 0 34px;border:1px solid var(--line);border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--text-2);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.drawer-close:hover{background:var(--pill);color:var(--ink);border-color:#C6D6D0}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:500;color:var(--text);margin-bottom:6px}
.field input[type="text"],.field input[type="tel"],.field textarea,.field select{
  width:100%;padding:11px 14px;
  border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--text);font-size:15px;
  transition:border-color var(--t),box-shadow var(--t);
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(28,74,69,.12);
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field.invalid input[type="text"],.field.invalid input[type="tel"]{border-color:var(--error)}
.err{display:none;font-size:12px;color:var(--error);margin-top:6px;line-height:1.6}
.field.invalid .err{display:block}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip-opt{position:relative}
.chip-opt input{position:absolute;opacity:0;width:1px;height:1px}
.chip-opt span{
  display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--text-2);cursor:pointer;
  transition:background var(--t),border-color var(--t),color var(--t);
}
.chip-opt span:hover{border-color:#C6D6D0;color:var(--ink)}
.chip-opt input:checked + span{background:var(--pill);border-color:var(--ink);color:var(--ink);font-weight:500}
.chip-opt input:focus-visible + span{outline:2px solid var(--ink);outline-offset:2px}
.check-row{display:flex;gap:9px;align-items:flex-start;font-size:12.5px;color:var(--text-3);line-height:1.7;margin-top:4px}
.check-row input{margin-top:3px;accent-color:var(--ink);width:15px;height:15px;flex:0 0 15px}
.check-row a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.check-row.invalid{color:var(--error)}
.form-status{
  display:none;font-size:13px;line-height:1.7;border-radius:8px;padding:10px 14px;margin-top:14px;
}
.form-status.show{display:block}
.form-status.ok{background:rgba(46,125,91,.1);color:var(--success);border:1px solid rgba(46,125,91,.24)}
.form-status.bad{background:rgba(180,67,47,.08);color:var(--error);border:1px solid rgba(180,67,47,.24)}
body.locked{overflow:hidden}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:100%}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:68px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:12px 24px 32px;
    opacity:0;pointer-events:none;transform:translateY(-8px);
    transition:opacity var(--t),transform var(--t);
    overflow-y:auto;border-top:1px solid var(--line);
  }
  .nav-links.open{opacity:1;pointer-events:auto;transform:translateY(0)}
  .nav-links > a{
    display:flex;align-items:center;height:56px;width:100%;
    font-size:16px;color:var(--text);padding:0;
    border-bottom:1px solid var(--line);border-bottom-width:1px;
  }
  .nav-links > a.active{color:var(--ink);border-bottom-color:var(--line)}
  .nav-cta{width:100%;margin:20px 0 0}
  .nav-cta .btn{width:100%}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .contact-card{position:static;order:-1;margin-bottom:8px}
  .related-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:72px 0}
  .cta-wrap{padding-bottom:72px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .cta-wrap{padding-bottom:56px}
  .container{padding:0 20px}
  .page-title{font-size:30px}
  .page-title .h1-sub{font-size:18px}
  .section-title{font-size:24px}
  .topbar .tip,.topbar .divider,.topbar .quick{display:none}
  .topbar-inner{height:34px;font-size:12px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer{padding:48px 0 20px}
  .footer-bottom{margin-top:32px}
  .drawer{
    width:100%;top:auto;bottom:0;height:94vh;
    border-radius:16px 16px 0 0;transform:translateY(100%);
  }
  .drawer.open{transform:translateY(0)}
  .cta-band h2{font-size:22px}
  .privacy-block{padding:24px}
}
@media (max-width:479px){
  .btn{width:100%}
  .nav-cta .btn{width:100%}
  .btn-sm{width:auto;padding:9px 16px;font-size:13px}
  .cta-actions{width:100%}
  .chip{font-size:12px;padding:6px 12px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-answer{padding:0 16px 16px}
  .contact-card{padding:20px}
  .drawer{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}