/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --brand:#E8452C; --brand-d:#C2351F; --brand-soft:#FDEDE9;
  --teal:#0E8F76; --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A; --text:#3C4247; --muted:#7A828A; --line:#E6E3DE;
  --bg:#FAF8F5; --bg-2:#F2EFEA; --card:#FFFFFF;
  --r-card:20px; --r-img:14px; --r-sm:10px; --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-bar:0 -6px 24px rgba(20,23,26,.08);
  --section-y:96px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ===== reset 与基础排版 ===== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:17px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
  padding-bottom:64px;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-d)}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
/* ===== 通用区块 ===== */
.section{padding:var(--section-y) 0}
.section--tight{padding:64px 0}
.section--bg2{background:var(--bg-2)}
.section--ink{background:var(--ink);color:#C9CED3}
.section--ink h2,.section--ink h3{color:#fff}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.sec-head h2{font-size:32px;letter-spacing:-.01em}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:12px}
.sec-kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.sec-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;line-height:1.75}
.link-more{font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px}
.link-more:hover{border-bottom-color:var(--brand);transform:translateY(-1px)}
/* ===== 按钮 ===== */
.btn-brand,.btn-ghost,.btn-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;border:1px solid transparent;
  cursor:pointer;text-align:center;transition:all .22s ease;line-height:1.2;
}
.btn-lg{padding:16px 34px;font-size:17px}
.btn-md{padding:12px 26px;font-size:15px}
.btn-sm{padding:8px 18px;font-size:13px}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(232,69,44,.24)}
.btn-brand:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000;color:#fff;transform:translateY(-2px)}
.btn-teal{background:transparent;color:var(--teal);border-color:var(--teal)}
.btn-teal:hover{background:var(--teal-soft);color:var(--teal)}
/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(250,248,245,.96);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,padding .25s ease}
.site-header.is-stuck{box-shadow:0 10px 30px rgba(20,23,26,.09)}
.nav-top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0 10px}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{width:42px;height:42px;border-radius:12px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;letter-spacing:-.02em;box-shadow:0 6px 16px rgba(232,69,44,.3);flex:0 0 auto}
.logo-text{display:flex;flex-direction:column;font-size:20px;font-weight:800;letter-spacing:-.02em;line-height:1.15}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-top:3px}
.nav-actions{display:flex;align-items:center;gap:18px}
.nav-phone{font-size:14px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}
.nav-phone i{color:var(--brand)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);color:var(--ink);font-size:18px}
.chip-nav{display:flex;gap:8px;align-items:center;padding:8px 0 14px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  color:var(--ink);font-size:14px;font-weight:600;white-space:nowrap;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand-d)}
.chip.active{background:var(--brand-soft);color:var(--brand-d);border-color:var(--brand)}
.offcanvas{background:var(--bg)}
.offcanvas .chip{width:100%;justify-content:flex-start;height:48px}
/* ===== Hero ===== */
.hero{position:relative;padding:72px 0 88px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(1100px 460px at 88% -8%,rgba(232,69,44,.10),transparent 62%),
  radial-gradient(720px 420px at 6% 106%,rgba(14,143,118,.10),transparent 60%);
  pointer-events:none}
.hero-inner{position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:7px 16px;font-size:13px;font-weight:700;color:var(--text);box-shadow:var(--sh-1)}
.hero-badge i{color:var(--amber)}
.hero h1{margin:22px 0 18px;font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.02em}
.hero h1 span{color:var(--brand)}
.hero-lead{font-size:17px;color:var(--text);max-width:560px;line-height:1.8}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:30px 0 24px}
.hero-trust{display:flex;gap:34px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px}
.hero-trust div{display:flex;flex-direction:column}
.hero-trust b{font-size:26px;font-weight:800;color:var(--ink);line-height:1.1;letter-spacing:-.02em}
.hero-trust b i{font-style:normal;color:var(--brand);font-size:16px;margin-left:2px}
.hero-trust small{font-size:13px;color:var(--muted);margin-top:6px}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line)}
.hero-visual img{width:100%;height:420px;object-fit:cover}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(232,69,44,.18),rgba(20,23,26,.02) 55%)}
.hero-stats{position:absolute;right:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;z-index:2}
/* ===== 数据徽章 ===== */
.badge-data{display:inline-flex;flex-direction:column;gap:2px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:10px 16px;box-shadow:var(--sh-1)}
.badge-data b{font-size:20px;font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.badge-data small{font-size:12px;color:var(--muted);white-space:nowrap}
.badge-data--amber{background:var(--amber);border-color:var(--amber)}
.badge-data--amber b{color:var(--ink)}
.badge-data--amber small{color:#5B4A15}
.badge-data--ink{background:var(--ink);border-color:var(--ink)}
.badge-data--ink b{color:#fff}
.badge-data--ink small{color:#B9BFC5}
/* ===== 卖点（非对称 8:4） ===== */
.feature-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);height:100%;transition:transform .3s ease,box-shadow .3s ease}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-main img{width:100%;height:240px;object-fit:cover;border-radius:var(--r-img);margin-bottom:22px}
.feature-main h3{font-size:22px;margin-bottom:12px}
.feature-points{margin-top:18px;display:grid;gap:12px}
.feature-points li{display:flex;gap:12px;font-size:15px;color:var(--text);line-height:1.7}
.feature-points li::before{content:"";flex:0 0 auto;width:10px;height:10px;border-radius:3px;background:var(--brand);margin-top:8px}
.feature-side{display:grid;gap:24px;height:100%}
.feature-mini{border:1px solid var(--line);border-radius:var(--r-card);padding:24px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease;height:100%}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-mini .badge-data{align-self:flex-start}
.feature-mini h3{font-size:18px}
.feature-mini p{font-size:15px;color:var(--muted);margin:0;line-height:1.7}
.bg-card{background:var(--card)}
.bg-2{background:var(--bg-2)}
.bg-teal{background:var(--teal-soft)}
/* ===== 场景演示 ===== */
.tab-strip{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:40px}
.tab-strip button{height:40px;padding:0 20px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:600;transition:all .2s ease}
.tab-strip button:hover{border-color:var(--brand);color:var(--brand-d)}
.tab-strip button.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}
.scene-panel{display:none}
.scene-panel.active{display:block;animation:fadeUp .38s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.scene-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.scene-media img{width:100%;height:330px;object-fit:cover;transition:transform .5s ease}
.scene-media:hover img{transform:scale(1.04)}
.scene-body h3{font-size:24px;margin-bottom:14px}
.scene-body .tag{margin-bottom:14px}
.scene-body p{color:var(--text);font-size:16px}
.scene-facts{display:flex;gap:28px;flex-wrap:wrap;margin:20px 0 24px}
.scene-facts div{display:flex;flex-direction:column}
.scene-facts b{font-size:22px;color:var(--teal);font-weight:800;font-variant-numeric:tabular-nums}
.scene-facts small{font-size:13px;color:var(--muted);margin-top:4px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand-d)}
.tag--teal{background:var(--teal-soft);color:var(--teal)}
.tag--ink{background:var(--ink);color:#fff}
/* ===== 社会认同 ===== */
.proof-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:52px}
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:36px 0 56px}
.partner{height:80px;border:1px solid var(--line);border-radius:var(--r-img);background:#fff;display:flex;align-items:center;justify-content:center;color:#9AA1A8;font-weight:700;font-size:15px;letter-spacing:.04em;filter:grayscale(1);transition:all .25s ease}
.partner:hover{filter:grayscale(0);color:var(--brand-d);border-color:var(--brand);transform:translateY(-3px)}
.quote-track{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:18px}
.quote-card p{font-size:16px;color:var(--text);margin:0}
.quote-meta{display:flex;align-items:center;gap:14px;margin-top:auto}
.quote-avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-soft);color:var(--brand-d);display:flex;align-items:center;justify-content:center;font-weight:800}
.quote-meta b{display:block;font-size:15px;color:var(--ink)}
.quote-meta small{font-size:13px;color:var(--muted)}
.stars{color:var(--amber);font-size:14px;letter-spacing:2px}
/* ===== 资讯列表 ===== */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-cover .tag{position:absolute;left:14px;top:14px;z-index:2}
.news-body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:15px;color:var(--muted);margin:0;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.news-meta i{color:var(--brand)}
.news-card__link{position:absolute;inset:0;z-index:3;text-indent:-9999px;overflow:hidden}
.news-card-wrap{position:relative}
.empty-state{min-height:220px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--bg-2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:40px 24px}
.empty-state i{font-size:34px;color:var(--brand)}
.empty-state p{color:var(--muted);margin:0}
/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item:has(.faq-btn[aria-expanded="true"]){border-color:var(--brand);box-shadow:var(--sh-1)}
.faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:transparent;border:0;font-size:16px;font-weight:600;color:var(--ink);text-align:left;cursor:pointer}
.faq-btn::after{content:"+";font-size:22px;font-weight:700;color:var(--brand);line-height:1;transition:transform .24s ease}
.faq-btn[aria-expanded="true"]::after{content:"−"}
.faq-body{padding:0 22px 20px;color:var(--text);font-size:15.5px;line-height:1.8}
/* ===== CTA 分区 ===== */
.cta-band{background:var(--ink);border-radius:var(--r-card);padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:38%;background:linear-gradient(135deg,rgba(232,69,44,.22),transparent 72%)}
.cta-band h2{color:#fff;font-size:28px;position:relative;z-index:1}
.cta-band p{color:#B9BFC5;margin:10px 0 0;position:relative;z-index:1;max-width:620px}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
/* ===== 表单 ===== */
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;font-size:15px;color:var(--text);background:#fff;width:100%;transition:border-color .2s ease,box-shadow .2s ease}
.form-control:focus,.form-select:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(232,69,44,.14);outline:none}
.form-control::placeholder{color:#A9AFB5}
.form-hint{font-size:13px;color:var(--brand);margin-top:6px}
/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#C9CED3;padding:72px 0 34px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:48px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text em{color:#8D949B}
.footer-brand p{font-size:14px;line-height:1.8;margin:18px 0 0;max-width:320px;color:#9AA1A8}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9CED3;font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;border-bottom:none}
.footer-contact li{font-size:14px;margin-bottom:12px;display:flex;gap:10px;line-height:1.6}
.footer-contact i{color:var(--brand);margin-top:4px}
.qr-box{width:104px;height:104px;border-radius:var(--r-sm);background:#23272C;border:1px solid #33383E;display:flex;align-items:center;justify-content:center;color:#6C7379;font-size:12px;text-align:center;line-height:1.5}
.footer-bottom{margin-top:52px;padding-top:22px;border-top:1px solid #2A2F35;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8D949B}
.footer-bottom a{color:#8D949B}
.footer-bottom a:hover{color:#fff}
/* ===== 底部固定转化条 ===== */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);box-shadow:var(--sh-bar);height:64px;display:flex;align-items:center}
.sticky-bar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.sticky-bar p{margin:0;font-size:15px;font-weight:600;color:var(--ink)}
.sticky-bar p i{color:var(--brand);margin-right:8px}
.sticky-actions{display:flex;align-items:center;gap:14px}
.sticky-phone{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:8px}
.sticky-phone:hover{color:var(--brand-d)}
/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  :root{--section-y:80px}
  .hero h1{font-size:38px}
  .hero-visual img{height:380px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr;gap:36px}
}
@media (max-width:991.98px){
  :root{--section-y:72px}
  body{font-size:16px}
  .nav-phone{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .hero{padding:48px 0 64px}
  .hero h1{font-size:34px}
  .hero-visual{margin-top:36px}
  .hero-visual img{height:320px}
  .proof-badges{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .quote-track{grid-template-columns:1fr}
  .cta-band{padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head h2{font-size:27px}
}
@media (max-width:767.98px){
  :root{--section-y:56px}
  body{padding-bottom:56px;font-size:16px}
  .container{padding-left:18px;padding-right:18px}
  .hero h1{font-size:28px}
  .hero-lead{font-size:16px}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%}
  .hero-trust{gap:22px}
  .hero-trust b{font-size:22px}
  .hero-visual img{height:240px}
  .hero-stats{right:12px;bottom:12px;gap:8px}
  .badge-data{padding:8px 12px}
  .badge-data b{font-size:17px}
  .chip-nav{position:relative;padding-right:24px}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .news-body{padding:18px}
  .sticky-bar{height:56px}
  .sticky-bar p{display:none}
  .sticky-bar .container{gap:12px}
  .sticky-actions{width:100%;gap:10px}
  .sticky-actions .btn-brand{flex:1 1 60%}
  .sticky-actions .btn-ghost{flex:1 1 40%}
  .sticky-phone{width:100%;justify-content:center}
  .check-list{grid-template-columns:1fr}
}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 24px;margin:22px 0 0}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text);line-height:1.7}
.check-list li i{color:var(--teal);margin-top:5px}
.consult-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-1)}
.consult-card h3{font-size:20px;margin-bottom:8px}
.consult-card .sec-sub{margin-bottom:20px}

/* roulang page: article */
:root{
  --brand:#E8452C;
  --brand-d:#C2351F;
  --brand-soft:#FDEDE9;
  --teal:#0E8F76;
  --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A;
  --text:#3C4247;
  --muted:#7A828A;
  --line:#E6E3DE;
  --bg:#FAF8F5;
  --bg-2:#F2EFEA;
  --card:#FFFFFF;
  --r-card:20px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-3:0 -6px 24px rgba(20,23,26,.08);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  padding-bottom:64px;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 1em}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.container{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,248,245,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:10px;transition:padding .25s ease}
.site-header.scrolled .header-row{padding-top:8px;padding-bottom:6px}
.logo{display:inline-flex;align-items:center;gap:10px}
.logo-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 40px;
  background:var(--brand);color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.01em;line-height:1.15}
.logo-text em{display:block;font-style:normal;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.06em}
.header-side{display:flex;align-items:center;gap:12px}
.header-phone{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text)}
.header-phone i{color:var(--brand)}
.header-phone:hover{color:var(--brand-d)}
.nav-wrap{padding-bottom:12px}
.chip-nav{
  display:flex;gap:8px;align-items:center;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink);
  white-space:nowrap;transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand-d)}
.chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;
  font-weight:700;cursor:pointer;transition:all .22s ease;text-align:center;
}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-md{padding:12px 24px;font-size:15px}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(232,69,44,.22)}
.btn-primary:hover{background:var(--brand-d);transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-d)}
.link-more{color:var(--brand);font-weight:600;font-size:15px;border-bottom:2px solid transparent;padding-bottom:1px}
.link-more:hover{border-bottom-color:var(--brand);color:var(--brand-d)}

/* ---------- article head ---------- */
.article-head{padding:44px 0 28px;background:var(--bg)}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:14px}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .sep{color:#C6C1BA}
.breadcrumb-line .current{color:var(--ink);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head h1{
  font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.02em;
  max-width:960px;margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--muted)}
.cat-chip{
  display:inline-flex;align-items:center;gap:6px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand-d);
  font-size:13px;font-weight:700;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#CFCAC3;display:inline-block}

/* ---------- article layout ---------- */
.article-main{padding:12px 0 72px}
.article-grid{--bs-gutter-x:40px;--bs-gutter-y:32px}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.article-cover{border-radius:var(--r-img);overflow:hidden;margin-bottom:12px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.cover-caption{font-size:13px;color:var(--muted);margin-bottom:28px}

.article-body{max-width:760px;font-size:17px;line-height:1.8;color:var(--text)}
.article-body p{margin-bottom:18px}
.article-body h2{
  font-size:28px;font-weight:700;margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand);line-height:1.35;
}
.article-body h3{font-size:21px;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:18px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:2px}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  background:var(--brand);border-radius:2px;
}
.article-body ol{counter-reset:li}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  background:none;color:var(--brand);font-weight:700;font-size:14px;top:0;width:auto;height:auto;
}
.article-body blockquote{
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;padding:20px 22px;margin:24px 0;
  color:var(--ink);font-weight:500;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(232,69,44,.4)}
.article-body a:hover{color:var(--brand-d);border-bottom-color:var(--brand-d)}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;font-size:15px;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden}
.article-body th{background:var(--ink);color:#fff;text-align:left;padding:12px 16px;font-weight:600}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-empty{
  text-align:center;padding:56px 24px;background:var(--bg-2);
  border-radius:var(--r-card);border:1px dashed var(--line);
}
.article-empty i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{max-width:520px;margin:0 auto 20px;color:var(--muted)}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:120px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title i{color:var(--brand);font-size:14px}
.side-consult{background:var(--brand-soft);border-color:#F6D9D2}
.side-consult p{font-size:14px;color:var(--text);margin-bottom:16px}
.side-consult .btn{width:100%}
.side-contact-line{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);font-weight:600;margin-top:12px}
.side-contact-line i{color:var(--brand)}
.reco-list li+li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.reco-item{display:block}
.reco-item .reco-title{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;display:block;margin-bottom:6px}
.reco-item:hover .reco-title{color:var(--brand-d)}
.reco-item .reco-time{font-size:12px;color:var(--muted)}
.side-badge{
  display:flex;align-items:center;gap:12px;background:var(--ink);color:#fff;
  border-radius:var(--r-card);padding:18px 22px;
}
.side-badge .num{font-size:26px;font-weight:800;color:var(--amber);line-height:1}
.side-badge span.desc{font-size:13px;color:#C9CED3}

/* ---------- bottom blocks ---------- */
.post-nav{display:flex;justify-content:space-between;gap:16px;margin-top:32px;font-size:13px;color:var(--muted)}
.post-nav em{font-style:normal;color:var(--ink);font-weight:600;margin-right:6px}
.back-row{margin-top:24px}

.related{padding:0 0 72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:32px}
.section-head p{font-size:15px;color:var(--muted);margin:8px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--teal-soft);color:var(--teal);font-size:13px;font-weight:600;margin-bottom:12px;align-self:flex-start}
.news-body h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--text);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.news-foot i{color:var(--brand)}

.cross-links{padding:0 0 72px}
.cross-links .label{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:14px}
.cross-links .chips{display:flex;flex-wrap:wrap;gap:10px}
.cross-links .chip{height:40px}

.cta-band{background:var(--ink);color:#fff;border-radius:var(--r-card);padding:44px;margin-bottom:72px}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-band p{color:#C9CED3;font-size:15px;margin:0;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
.cta-band .btn-outline{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9CED3;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr .8fr;gap:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text em{color:#9AA1A8}
.footer-brand p{font-size:14px;line-height:1.8;margin:0;max-width:330px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#C9CED3}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:10px;align-items:flex-start}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.qr-box{
  width:112px;height:112px;border:1px dashed #4A5058;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12px;color:#8A9199;line-height:1.5;
}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid #2A2F34;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom a{color:#C9CED3}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* ---------- sticky cta ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;
  border-top:1px solid var(--line);box-shadow:var(--sh-3);height:64px;
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.sticky-text{font-size:15px;font-weight:600;color:var(--ink);margin:0}
.sticky-actions{display:flex;align-items:center;gap:12px}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-head h1{font-size:38px}
  .footer-grid{grid-template-columns:1.2fr 1fr 1.2fr;gap:32px}
}
@media (max-width:991.98px){
  body{font-size:16px;padding-bottom:56px}
  .article-head{padding:32px 0 22px}
  .article-head h1{font-size:30px}
  .article-body h2{font-size:24px;margin-top:32px}
  .article-body h3{font-size:19px}
  .article-card{padding:24px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .sidebar{position:static;margin-top:8px}
  .cta-band{padding:32px 24px;margin-bottom:56px}
  .cta-band h2{font-size:24px}
  .section-head h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sticky-cta,.sticky-inner{height:56px}
  .sticky-text{display:none}
  .sticky-inner{justify-content:stretch}
  .sticky-actions{display:flex;width:100%;gap:10px}
  .sticky-actions .btn{flex:1;padding:10px 12px;font-size:15px}
  .sticky-actions .btn-primary{flex:1.5}
}
@media (max-width:767.98px){
  .container{padding-left:18px;padding-right:18px}
  .article-grid{--bs-gutter-x:0px}
  .card-grid{grid-template-columns:1fr}
  .header-phone{display:none}
  .logo-text{font-size:17px}
  .article-head h1{font-size:26px}
  .post-nav{flex-direction:column;gap:8px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .article-head h1{font-size:23px}
  .article-card{padding:20px}
  .btn-lg{padding:13px 22px;font-size:15px}
  .header-side .btn-ghost{display:none}
}

/* roulang page: category1 */
:root{
  --brand:#E8452C;
  --brand-d:#C2351F;
  --brand-soft:#FDEDE9;
  --teal:#0E8F76;
  --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A;
  --text:#3C4247;
  --muted:#7A828A;
  --line:#E6E3DE;
  --bg:#FAF8F5;
  --bg-2:#F2EFEA;
  --card:#FFFFFF;
  --r-card:20px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-3:0 -6px 24px rgba(20,23,26,.08);
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:24px; --s6:32px; --s7:48px; --s8:64px; --s9:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px; line-height:1.8; color:var(--text); background:var(--bg);
  padding-bottom:72px;
}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:-.02em}
h1{font-size:44px;font-weight:800;line-height:1.25}
h2{font-size:32px;font-weight:700;line-height:1.3}
h3{font-size:22px;font-weight:600;line-height:1.4}
p{margin:0}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-d)}
img{max-width:100%;display:block}
button{font-family:inherit}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:96px 0}
.section.tight{padding:64px 0}
.section.alt{background:var(--bg-2)}
.section.dark{background:var(--ink);color:#C9CED3}
.section.dark h2,.section.dark h3{color:#fff}
.section-head{max-width:720px;margin-bottom:var(--s7)}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-soft);border-radius:var(--r-pill);padding:6px 14px;margin-bottom:14px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--muted)}
.section.dark .section-head p{color:#A9B0B6}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease,padding .25s ease}
.site-header.shrink{box-shadow:0 6px 20px rgba(20,23,26,.08)}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:var(--s5);height:72px}
.site-header.shrink .header-top{height:60px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{width:42px;height:42px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.logo-text{font-size:19px;font-weight:800;line-height:1.15;display:flex;flex-direction:column}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.04em}
.header-right{display:flex;align-items:center;gap:var(--s4)}
.header-tel{font-size:14px;color:var(--text);font-weight:600;display:inline-flex;align-items:center;gap:8px;min-height:44px}
.header-tel i{color:var(--brand)}
.header-tel:hover{color:var(--brand-d)}
.chip-nav{display:flex;gap:var(--s2);overflow-x:auto;padding:0 0 14px;scrollbar-width:none}
.chip-nav::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);color:var(--ink);font-size:14px;font-weight:600;transition:border-color .2s ease,background .2s ease,color .2s ease}
.chip:hover{border-color:var(--brand);color:var(--brand-d)}
.chip.active{background:var(--brand-soft);color:var(--brand);border-color:var(--brand)}

/* 按钮 */
.btn-hua{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;text-align:center}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-md{padding:12px 24px;font-size:15px}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}
.btn-teal{background:#fff;color:var(--teal);border-color:var(--teal)}
.btn-teal:hover{background:var(--teal-soft);color:var(--teal);transform:translateY(-2px)}
.btn-on-dark{background:#fff;color:var(--ink)}
.btn-on-dark:hover{background:var(--amber);color:var(--ink);transform:translateY(-2px)}
.link-more{font-weight:600;border-bottom:2px solid transparent;transition:border-color .2s ease}
.link-more:hover{border-bottom-color:var(--brand)}

/* 内页横幅 */
.inner-hero{position:relative;min-height:270px;display:flex;align-items:flex-end;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;}
.inner-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,23,26,.30) 0%,rgba(20,23,26,.72) 100%)}
.inner-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:40px}
.breadcrumb-line{font-size:13px;color:rgba(255,255,255,.78);margin-bottom:12px;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb-line a{color:rgba(255,255,255,.78)}
.breadcrumb-line a:hover{color:#fff}
.breadcrumb-line span.sep{opacity:.6}
.breadcrumb-line span.current{color:#fff}
.inner-hero h1{color:#fff;max-width:820px}
.inner-hero .lede{color:rgba(255,255,255,.9);margin-top:12px;max-width:640px;font-size:16px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-tags span{font-size:13px;font-weight:600;color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);border-radius:var(--r-pill);padding:5px 14px}

/* 概览与卡片 */
.split{display:grid;grid-template-columns:8fr 4fr;gap:var(--s7);align-items:start}
.svc-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--s5)}
.svc-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;height:100%}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.svc-media{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.svc-card:hover .svc-media img{transform:scale(1.04)}
.svc-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag{display:inline-block;font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:5px 12px;background:var(--brand-soft);color:var(--brand);align-self:flex-start}
.tag.teal{background:var(--teal-soft);color:var(--teal)}
.svc-body h3{font-size:20px}
.svc-body p{font-size:15px;color:var(--muted)}
.check-list li{position:relative;padding-left:20px;font-size:15px;color:var(--text);margin-top:8px}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--brand)}

/* 侧栏咨询卡 */
.side-card{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1)}
.side-card h3{font-size:20px;margin-bottom:8px}
.side-card .sub{font-size:14px;color:var(--muted);margin-bottom:18px}
.side-meta{border-top:1px solid var(--line);border-top:1px solid var(--line);margin-top:20px;padding-top:18px;display:grid;gap:12px}
.side-meta div{display:flex;gap:10px;font-size:14px;color:var(--text)}
.side-meta i{color:var(--brand);width:16px;text-align:center;margin-top:5px}
.side-soft{background:var(--brand-soft);border-radius:var(--r-sm);padding:16px;font-size:14px;color:var(--brand-d);font-weight:600;margin-top:18px;line-height:1.7}

/* 数据徽章 */
.badge-row{display:flex;flex-wrap:wrap;gap:var(--s4)}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 18px;min-width:170px;flex:1 1 170px;box-shadow:var(--sh-1)}
.stat .n{font-size:26px;font-weight:800;color:var(--brand);line-height:1.2}
.stat .n em{font-style:normal;font-size:15px;font-weight:700;margin-left:2px}
.stat .t{font-size:13px;color:var(--muted);margin-top:4px}
.stat.amber{background:var(--amber);border-color:var(--amber)}
.stat.amber .n,.stat.amber .t{color:var(--ink)}
.stat.dark{background:var(--ink);border-color:var(--ink)}
.stat.dark .n{color:#fff}
.stat.dark .t{color:#A9B0B6}

/* 交付节奏 */
.rhythm{display:grid;gap:0;border-left:2px solid var(--line);margin-left:12px}
.rhythm li{position:relative;padding:0 0 32px 32px}
.rhythm li:last-child{padding-bottom:0}
.rhythm li::before{content:attr(data-step);position:absolute;left:-17px;top:2px;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.rhythm h3{font-size:19px;margin-bottom:6px}
.rhythm p{font-size:15px;color:var(--muted);max-width:44em}

/* 适用场景 */
.scene-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--s5)}
.scene{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-1);transition:transform .3s ease,box-shadow .3s ease}
.scene:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.scene i{width:44px;height:44px;border-radius:var(--r-sm);background:var(--teal-soft);color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.scene h3{font-size:19px;margin-bottom:8px}
.scene p{font-size:15px;color:var(--muted)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);transition:border-color .2s ease}
.faq-item:has(.faq-btn[aria-expanded="true"]){border-color:var(--brand)}
.faq-btn{width:100%;background:none;border:0;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);text-align:left;min-height:56px;cursor:pointer}
.faq-btn .ico{color:var(--brand);font-size:18px;line-height:1;flex:0 0 auto;transition:transform .24s ease}
.faq-btn[aria-expanded="true"] .ico{transform:rotate(180deg)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text);line-height:1.85}
.collapsing{transition:height .24s ease}

/* 交叉链接 */
.cross{padding:56px 0}
.cross h2{font-size:24px;margin-bottom:18px}
.cross-chips{display:flex;flex-wrap:wrap;gap:12px}
.cross-chips a{display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);color:var(--ink);font-weight:600;font-size:15px;transition:border-color .2s ease,color .2s ease,transform .2s ease}
.cross-chips a:hover{border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}

/* CTA 分区 */
.cta-band{background:var(--ink);color:#C9CED3;padding:72px 0}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:#A9B0B6;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin-top:28px}
.cta-tel{color:#fff;font-weight:700;font-size:17px;display:inline-flex;align-items:center;gap:10px;min-height:44px}
.cta-tel i{color:var(--amber)}
.cta-tel:hover{color:var(--amber)}

/* 页面底部固定转化条 */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);box-shadow:var(--sh-3)}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.sticky-inner .msg{font-weight:700;color:var(--ink);font-size:15px}
.sticky-actions{display:flex;align-items:center;gap:14px}
.sticky-tel{font-size:15px;font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:8px;min-height:44px}
.sticky-tel i{color:var(--brand)}
.sticky-tel:hover{color:var(--brand-d)}

/* 页脚 */
.site-footer{background:var(--ink);color:#C9CED3;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.3fr 1fr;gap:48px}
.footer-brand .logo{color:#fff}
.footer-brand .logo:hover{color:#fff}
.footer-brand .logo-text em{color:#8E969C}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#A9B0B6;max-width:30em}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9CED3;font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#C9CED3}
.footer-contact i{color:var(--brand);margin-top:5px;width:16px;text-align:center}
.qr-box{width:112px;height:112px;border:1px dashed #4A5055;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;color:#8E969C;line-height:1.6}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid #2A2F34;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:#8E969C}
.footer-bottom a{color:#C9CED3}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* 响应式 */
@media (max-width:1199px){
  h1{font-size:38px}
  .footer-grid{grid-template-columns:1.4fr 1fr;gap:40px}
}
@media (max-width:991px){
  .section{padding:72px 0}
  h1{font-size:36px}
  h2{font-size:28px}
  .split{grid-template-columns:1fr;gap:var(--s6)}
  .side-card{position:static}
  .scene-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .header-tel{display:none}
  .inner-hero{min-height:250px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:64px}
  .section{padding:56px 0}
  h1{font-size:28px}
  h2{font-size:24px}
  h3{font-size:18px}
  .container{padding-left:18px;padding-right:18px}
  .header-top{height:60px}
  .logo-mark{width:38px;height:38px;font-size:18px}
  .logo-text{font-size:17px}
  .chip-nav{padding-bottom:10px;margin:0 -18px;padding-left:18px;padding-right:18px}
  .chip{height:44px}
  .svc-grid{grid-template-columns:1fr}
  .scene-list{grid-template-columns:1fr}
  .badge-row{gap:12px}
  .stat{flex:1 1 100%}
  .sticky-inner{height:56px;gap:10px}
  .sticky-inner .msg{display:none}
  .sticky-actions{width:100%}
  .sticky-actions .btn-hua{flex:0 0 60%;}
  .sticky-actions .sticky-tel{flex:0 0 40%;justify-content:center;border:1px solid var(--line);border-radius:var(--r-pill);height:44px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .inner-hero .container{padding-top:48px;padding-bottom:28px}
  .cta-band{padding:56px 0}
}
@media (max-width:519px){
  .btn-lg{padding:13px 22px;font-size:15px}
  .cta-actions{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand:#E8452C;
  --brand-d:#C2351F;
  --brand-soft:#FDEDE9;
  --teal:#0E8F76;
  --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A;
  --text:#3C4247;
  --muted:#7A828A;
  --line:#E6E3DE;
  --bg:#FAF8F5;
  --bg-2:#F2EFEA;
  --card:#FFFFFF;
  --r-card:20px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-3:0 -6px 24px rgba(20,23,26,.08);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-bottom:76px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-d);}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
h1{font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.02em;}
h2{font-size:32px;font-weight:700;}
h3{font-size:22px;font-weight:600;}
p{margin:0 0 18px;max-width:38em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(250,248,245,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-2);}
.site-header.is-stuck .nav-top{padding-top:8px;padding-bottom:8px;}
.nav-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0 10px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 42px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:20px;box-shadow:0 6px 16px rgba(232,69,44,.28);
}
.logo-text{display:flex;flex-direction:column;font-size:19px;font-weight:800;letter-spacing:-.02em;line-height:1.15;}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-top:2px;}
.nav-actions{display:flex;align-items:center;gap:14px;}
.nav-phone{font-size:14px;font-weight:600;color:var(--text);display:inline-flex;align-items:center;gap:6px;}
.nav-phone i{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:17px;align-items:center;justify-content:center;
}
.chip-nav{display:flex;flex-wrap:wrap;gap:8px;padding:0 0 14px;}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:14px;font-weight:600;white-space:nowrap;transition:all .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);}
.chip:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-lg{padding:16px 34px;font-size:17px;min-height:54px;}
.btn-md{padding:14px 28px;font-size:15px;min-height:48px;}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}
.btn-block{width:100%;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  min-height:270px;
  display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border-radius:0 0 var(--r-card) var(--r-card);
  overflow:hidden;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,26,.42) 0%,rgba(20,23,26,.78) 100%);
}
.banner-inner{position:relative;z-index:2;padding:56px 0 44px;width:100%;color:#fff;}
.breadcrumb-line{font-size:13px;color:#C9CED3;display:flex;align-items:center;gap:8px;margin-bottom:12px;}
.breadcrumb-line a{color:#C9CED3;}
.breadcrumb-line a:hover{color:#fff;}
.breadcrumb-line .cur{color:#fff;}
.page-banner h1{color:#fff;margin-bottom:12px;}
.page-banner .lead-line{color:#E8E5E1;font-size:16px;margin:0;max-width:44em;}
.banner-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.banner-tags span{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13px;font-weight:600;
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:var(--bg-2);}
.section.dark{background:var(--ink);color:#D8DCE0;}
.section.dark h2,.section.dark h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:700;letter-spacing:.06em;margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:16px;margin-top:14px;}
.section.dark .section-head p{color:#A6ADB4;}

/* ---------- flow ---------- */
.flow-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:48px 40px;box-shadow:var(--sh-1);
}
.flow{display:flex;gap:0;position:relative;}
.flow-step{flex:1 1 0;padding:0 16px;position:relative;}
.flow-step:first-child{padding-left:0;}
.flow-step:last-child{padding-right:0;}
.flow-dot{
  width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  margin-bottom:18px;position:relative;z-index:2;box-shadow:0 6px 16px rgba(232,69,44,.24);
}
.flow-step::before{
  content:"";position:absolute;left:52px;right:-16px;top:21px;height:2px;background:var(--line);z-index:1;
}
.flow-step:last-child::before{display:none;}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;max-width:none;}
.flow-step .step-time{
  display:inline-block;margin-top:12px;font-size:12px;font-weight:700;color:var(--teal);
  background:var(--teal-soft);border-radius:var(--r-pill);padding:3px 12px;
}

/* ---------- badges ---------- */
.badge-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.stat .val{font-size:32px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.02em;}
.stat .val small{font-size:15px;font-weight:700;margin-left:2px;}
.stat .lbl{font-size:13px;color:var(--muted);margin-top:6px;}
.stat.is-amber{background:var(--amber);border-color:#EFB829;}
.stat.is-amber .val{color:var(--ink);}
.stat.is-amber .lbl{color:#5A4A18;}
.stat.is-ink{background:var(--ink);border-color:var(--ink);}
.stat.is-ink .val{color:#fff;}
.stat.is-ink .lbl{color:#A6ADB4;}

/* ---------- cases ---------- */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:72px;}
.case-row:last-of-type{margin-bottom:0;direction:rtl;}
.case-row:last-of-type > *{direction:ltr;}
.case-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease;}
.case-media:hover img{transform:scale(1.04);}
.case-body h3{font-size:24px;margin-bottom:14px;}
.case-body .tag{
  display:inline-flex;height:28px;align-items:center;padding:0 12px;border-radius:var(--r-pill);
  background:var(--teal-soft);color:var(--teal);font-size:12px;font-weight:700;margin-bottom:14px;
}
.case-list{margin-top:20px;display:grid;gap:10px;}
.case-list li{display:flex;gap:10px;font-size:15px;color:var(--text);line-height:1.7;}
.case-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--brand);
}
.text-link{
  display:inline-block;color:var(--brand);font-weight:700;font-size:15px;margin-top:22px;
  border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color .2s ease,transform .2s ease;
}
.text-link:hover{border-bottom-color:var(--brand);transform:translateY(1px);}

/* ---------- types ---------- */
.type-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.type-cloud span{
  display:inline-flex;align-items:center;height:44px;padding:0 22px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;
  transition:all .2s ease;cursor:default;
}
.type-cloud span:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.type-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px 40px;box-shadow:var(--sh-1);margin-top:32px;
}
.type-panel ul{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 40px;}
.type-panel li{display:flex;gap:10px;font-size:15px;line-height:1.75;}
.type-panel li i{color:var(--teal);margin-top:5px;font-size:14px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item:has(.accordion-button:not(.collapsed)){border-color:var(--brand);box-shadow:var(--sh-1);}
.faq-item .accordion-button{
  width:100%;background:#fff;border:0;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;box-shadow:none;
}
.faq-item .accordion-button:not(.collapsed){color:var(--brand);background:#fff;box-shadow:none;}
.faq-item .accordion-button::after{display:none;}
.faq-item .accordion-button .ico{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;transition:transform .24s ease;
}
.faq-item .accordion-button:not(.collapsed) .ico{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-item .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--text);line-height:1.85;max-width:44em;}

/* ---------- consult ---------- */
.consult-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;}
.form-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:36px;box-shadow:var(--sh-1);}
.form-card h3{margin-bottom:8px;}
.form-card .form-tip{font-size:14px;color:var(--muted);margin-bottom:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;font-size:15px;color:var(--text);font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(232,69,44,.16);
}
.field .hint{font-size:13px;color:var(--muted);margin-top:6px;}
.contact-lines{margin-top:28px;display:grid;gap:14px;}
.contact-lines li{display:flex;gap:12px;font-size:15px;color:var(--text);align-items:flex-start;}
.contact-lines i{color:var(--brand);margin-top:5px;}

/* ---------- cross links ---------- */
.cross-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.cross-links a{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);font-size:15px;font-weight:600;transition:all .2s ease;
}
.cross-links a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);border-radius:var(--r-card);padding:48px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:8px;}
.cta-band p{color:#A6ADB4;margin:0;font-size:15px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#C9CED3;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:48px;}
.footer-brand .logo{color:#fff;margin-bottom:18px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text em{color:#8D949B;}
.footer-brand p{font-size:14px;line-height:1.85;color:#A6ADB4;max-width:30em;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a,.footer-contact span{font-size:14px;color:#C9CED3;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:14px;align-items:flex-start;}
.footer-contact i{color:var(--brand);margin-top:5px;}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-sm);border:1px dashed #4A5158;color:#8D949B;
  display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;line-height:1.6;
}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid #2A3036;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8D949B;
}
.footer-bottom a{color:#C9CED3;}
.footer-bottom a:hover{color:#fff;text-decoration:underline;}

/* ---------- sticky bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;height:64px;background:#fff;
  border-top:1px solid var(--line);box-shadow:var(--sh-3);
  display:flex;align-items:center;
}
.sticky-bar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.sticky-bar .phrase{font-size:15px;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:10px;}
.sticky-bar .phrase i{color:var(--brand);}
.sticky-bar .bar-actions{display:flex;align-items:center;gap:16px;}
.sticky-bar .bar-tel{font-size:15px;font-weight:700;color:var(--ink);border-bottom:2px solid transparent;padding-bottom:2px;transition:border-color .2s ease;}
.sticky-bar .bar-tel:hover{border-bottom-color:var(--brand);color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  h1{font-size:36px;}
  h2{font-size:28px;}
  .section{padding:72px 0;}
  .footer-grid{gap:32px;}
}
@media (max-width:991.98px){
  .badge-row{grid-template-columns:repeat(2,1fr);}
  .case-row{grid-template-columns:1fr;gap:28px;margin-bottom:56px;direction:ltr;}
  .consult-grid{grid-template-columns:1fr;gap:36px;}
  .flow-wrap{padding:36px 28px;}
  .flow{flex-direction:column;gap:28px;}
  .flow-step{padding:0 0 0 60px;}
  .flow-step:first-child,.flow-step:last-child{padding-left:60px;padding-right:0;}
  .flow-step::before{left:21px;right:auto;top:52px;bottom:-32px;width:2px;height:auto;}
  .flow-dot{position:absolute;left:0;top:0;margin-bottom:0;}
  .type-panel ul{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  body{font-size:16px;padding-bottom:68px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  h3{font-size:18px;}
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .nav-phone{display:none;}
  .nav-toggle{display:inline-flex;}
  .chip-nav{
    flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;padding-bottom:12px;
    -webkit-overflow-scrolling:touch;
  }
  .chip-nav::-webkit-scrollbar{display:none;}
  .page-banner{min-height:230px;}
  .banner-inner{padding:40px 0 32px;}
  .badge-row{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .form-card{padding:24px;}
  .flow-wrap{padding:28px 20px;}
  .sticky-bar{height:56px;}
  .sticky-bar .phrase{display:none;}
  .sticky-bar .bar-actions{width:100%;gap:10px;}
  .sticky-bar .btn-brand{flex:1 1 60%;}
  .sticky-bar .bar-tel{
    flex:1 1 40%;text-align:center;border:1px solid var(--line);border-radius:var(--r-pill);
    padding:12px 8px;font-size:14px;background:#fff;line-height:1.2;
  }
}
@media (max-width:519.98px){
  .logo-text{font-size:17px;}
  .banner-tags span{font-size:12px;}
  .type-cloud span{height:40px;padding:0 16px;font-size:14px;}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
:root{
  --brand:#E8452C;
  --brand-d:#C2351F;
  --brand-soft:#FDEDE9;
  --teal:#0E8F76;
  --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A;
  --text:#3C4247;
  --muted:#7A828A;
  --line:#E6E3DE;
  --bg:#FAF8F5;
  --bg-2:#F2EFEA;
  --card:#FFFFFF;
  --r-card:20px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-3:0 -6px 24px rgba(20,23,26,.08);
}
/* ===== reset 与基础排版 ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-bottom:72px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em}
h1{font-size:44px;line-height:1.25;font-weight:800;letter-spacing:-.02em}
h2{font-size:32px;line-height:1.3}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{margin:0}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-d)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
.num,.stat-badge .num,.spec-v,.table-num{font-variant-numeric:tabular-nums}
/* ===== 容器与栅格微调 ===== */
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
@media (min-width:1400px){.container{max-width:1240px}}
/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,23,26,.09)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:800;font-size:20px;flex:0 0 auto;
}
.logo-text{display:flex;flex-direction:column;line-height:1.18;color:var(--ink);font-weight:800;font-size:18px;letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.chip-nav{display:flex;align-items:center;gap:8px;margin:0 auto}
.chip{
  display:inline-flex;align-items:center;justify-content:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.nav-tel{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.nav-tel:hover{color:var(--brand)}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.btn-lg{padding:14px 28px;font-size:17px}
.btn-md{padding:11px 22px;font-size:15px}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-d);transform:translateY(-2px)}
.btn-block{width:100%}
.text-link{color:var(--brand);font-weight:600;border-bottom:2px solid transparent;padding-bottom:1px}
.text-link:hover{border-bottom-color:var(--brand);color:var(--brand-d)}
.text-link i{margin-left:6px;font-size:12px}
/* ===== 页面横幅 ===== */
.page-banner{position:relative;min-height:280px;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.banner-media{position:absolute;inset:0}
.banner-media img{width:100%;height:100%;object-fit:cover;opacity:.5}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,23,26,.3) 0%,rgba(20,23,26,.88) 100%)}
.banner-inner{position:relative;z-index:2;padding-top:72px;padding-bottom:34px;color:#fff;width:100%}
.breadcrumb-bar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:12px}
.breadcrumb-bar a{color:rgba(255,255,255,.72)}
.breadcrumb-bar a:hover{color:#fff}
.breadcrumb-bar .sep{opacity:.6}
.breadcrumb-bar .current{color:#fff;font-weight:600}
.page-banner h1{color:#fff;margin-bottom:12px;max-width:900px}
.banner-sub{color:rgba(255,255,255,.82);font-size:16px;max-width:720px}
/* ===== 板块通用 ===== */
.section{padding:96px 0}
.section-alt{background:var(--bg-2)}
.section-ink{background:var(--ink);color:#C9CED3}
.section-ink h2,.section-ink h3{color:#fff}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{margin-bottom:14px}
.section-head p{font-size:16px;color:var(--muted)}
.section-ink .section-head p,.section-ink p{color:#A9B0B6}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.section-ink .eyebrow{background:rgba(255,201,74,.16);color:var(--amber)}
/* ===== 课程大卡 ===== */
.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px}
.course-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease;
}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.course-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.course-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.course-card:hover .course-media img{transform:scale(1.04)}
.course-body{padding:28px 28px 30px}
.tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-d);
  background:var(--brand-soft);padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.tag-teal{color:var(--teal);background:var(--teal-soft)}
.course-body h3{margin-bottom:10px}
.course-body p{font-size:15px;color:var(--text)}
.spec-list{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--bg-2);border-radius:var(--r-sm);overflow:hidden;margin-top:22px;
}
.spec-list li{padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.spec-list li + li{border-left:1px solid #E2DDD6}
.spec-k{font-size:12px;color:var(--muted);letter-spacing:.04em}
.spec-v{font-size:15px;font-weight:700;color:var(--ink)}
/* ===== 特色信息块 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;transition:transform .26s ease,box-shadow .26s ease;
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--sh-1)}
.feature-icon{
  width:46px;height:46px;border-radius:14px;background:var(--teal-soft);color:var(--teal);
  display:grid;place-items:center;font-size:18px;margin-bottom:16px;
}
.feature-item h3{font-size:18px;margin-bottom:8px}
.feature-item p{font-size:14px;color:var(--muted);line-height:1.75}
/* ===== 教练团队 ===== */
.coach-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.coach-card{text-align:center;transition:transform .26s ease}
.coach-card:hover{transform:translateY(-4px)}
.coach-avatar{
  width:96px;height:96px;border-radius:50%;overflow:hidden;margin:0 auto 14px;
  border:3px solid #fff;box-shadow:var(--sh-1);background:var(--bg-2);
}
.coach-avatar img{width:100%;height:100%;object-fit:cover}
.coach-card h3{font-size:17px;margin-bottom:2px}
.coach-card p{font-size:13px;color:var(--muted)}
/* ===== 数据徽章 ===== */
.result-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-badge{
  display:flex;flex-direction:column;gap:4px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;
}
.stat-badge .num{font-size:26px;font-weight:800;color:var(--brand);line-height:1.2}
.stat-badge .lbl{font-size:13px;color:var(--muted);line-height:1.5}
.stat-badge.is-amber{background:var(--amber);border-color:var(--amber)}
.stat-badge.is-amber .num{color:var(--ink)}
.stat-badge.is-amber .lbl{color:#6B5410}
/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-list .accordion-item:hover{box-shadow:var(--sh-1)}
.faq-list .accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--brand);box-shadow:var(--sh-1)}
.faq-list .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:18px 20px;box-shadow:none;border-radius:var(--r-sm);
}
.faq-list .accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand-d)}
.faq-list .accordion-button:focus{box-shadow:0 0 0 2px rgba(232,69,44,.25);border-color:transparent}
.faq-list .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:22px;font-weight:600;line-height:1;color:var(--brand);
  transform:none;transition:color .2s ease;
}
.faq-list .accordion-button:not(.collapsed)::after{content:"−";color:var(--brand-d)}
.faq-list .accordion-body{padding:2px 20px 22px;font-size:15px;color:var(--text)}
/* ===== 报名 CTA 与表单 ===== */
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.cta-copy h2{margin-bottom:16px}
.cta-copy p{font-size:16px;margin-bottom:24px;max-width:520px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:#C9CED3;margin-bottom:10px}
.cta-points i{color:var(--amber);margin-top:6px;font-size:13px}
.form-card{background:#fff;border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-note{font-size:14px;color:var(--muted);margin-bottom:22px}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-control,.form-select{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:12px 14px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:#A8AEB4}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(232,69,44,.15);outline:none;
}
.form-tip{font-size:13px;color:var(--muted);margin-top:14px}
/* ===== 交叉链接 ===== */
.cross-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cross-box h2{font-size:20px;margin:0}
.cross-chips{display:flex;flex-wrap:wrap;gap:10px}
/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:#C9CED3;padding:72px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:48px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-text em{color:#8B9298}
.footer-brand p{margin-top:16px;font-size:14px;color:#A9B0B6;max-width:300px;line-height:1.75}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9CED3}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;color:#C9CED3}
.footer-contact i{margin-top:5px;color:var(--amber);font-size:13px;width:16px}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-sm);
  border:1px dashed #41474C;display:grid;place-items:center;
  color:#7A828A;font-size:13px;text-align:center;line-height:1.6;
}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid #2A2F34;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8B9298;
}
.footer-bottom a{color:#C9CED3}
.footer-bottom a:hover{color:#fff;text-decoration:underline}
/* ===== 底部固定转化条 ===== */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;border-top:1px solid var(--line);box-shadow:var(--sh-3);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.sticky-text{font-size:15px;font-weight:600;color:var(--ink)}
.sticky-actions{display:flex;align-items:center;gap:20px}
.tel-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;
}
.tel-link:hover{color:var(--brand)}
/* ===== 响应式 ===== */
@media (max-width:1199px){
  h1{font-size:38px}
  h2{font-size:29px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .coach-grid{grid-template-columns:repeat(3,1fr)}
  .result-badges{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  body{font-size:16px}
  h1{font-size:32px}
  h2{font-size:27px}
  h3{font-size:20px}
  .section{padding:72px 0}
  .nav-inner{flex-wrap:wrap;height:auto;padding-top:10px;gap:10px}
  .nav-tel{display:none}
  .nav-actions{margin-left:auto}
  .chip-nav{
    order:3;flex:0 0 100%;margin:0 -24px;padding:0 24px 12px;
    overflow-x:auto;white-space:nowrap;-ms-overflow-style:none;scrollbar-width:none;
    justify-content:flex-start;
  }
  .chip-nav::-webkit-scrollbar{display:none}
  .course-grid{grid-template-columns:1fr;gap:24px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .page-banner{min-height:240px}
  .banner-inner{padding-top:56px;padding-bottom:26px}
  h1{font-size:28px}
  h2{font-size:24px}
  .feature-grid{grid-template-columns:1fr;gap:16px}
  .coach-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .result-badges{grid-template-columns:1fr}
  .spec-list li{padding:12px 10px}
  .spec-v{font-size:14px}
  .course-body{padding:22px 20px 24px}
  .form-card{padding:24px 20px}
  .cross-box{padding:24px 20px}
  body{padding-bottom:64px}
  .sticky-cta{height:56px}
  .sticky-inner{height:56px;gap:10px;padding-left:14px;padding-right:14px}
  .sticky-text{display:none}
  .sticky-actions{width:100%;gap:10px}
  .sticky-actions .btn{flex:0 0 58%;height:44px}
  .sticky-actions .tel-link{
    flex:1;justify-content:center;height:44px;border:1px solid var(--line);border-radius:var(--r-pill);
    font-size:14px;
  }
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .chip-nav{margin:0 -18px;padding:0 18px 12px}
  .logo-text{font-size:16px}
  .course-body h3{font-size:19px}
  .stat-badge .num{font-size:23px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --brand:#E8452C;
  --brand-d:#C2351F;
  --brand-soft:#FDEDE9;
  --teal:#0E8F76;
  --teal-soft:#E6F4F0;
  --amber:#FFC94A;
  --ink:#14171A;
  --text:#3C4247;
  --muted:#7A828A;
  --line:#E6E3DE;
  --bg:#FAF8F5;
  --bg-2:#F2EFEA;
  --card:#FFFFFF;
  --r-card:20px;
  --r-img:14px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 16px 40px rgba(232,69,44,.14);
  --sh-3:0 -6px 24px rgba(20,23,26,.08);
}
/* ============ reset 与基础排版 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Inter,Arial,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  padding-bottom:64px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease,transform .2s ease}
a:hover{color:var(--brand-d)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 18px}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
::selection{background:var(--brand-soft);color:var(--brand-d)}

/* ============ 容器与栅格微调 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media(min-width:1400px){.container{max-width:1240px}}
@media(max-width:575px){.container{padding-left:18px;padding-right:18px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,23,26,.08)}
.head-top{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding-top:8px;padding-bottom:8px;transition:min-height .25s ease}
.site-header.is-scrolled .head-top{min-height:60px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink);font-weight:800}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:20px;font-weight:800;flex:none;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;font-size:19px;font-weight:800;letter-spacing:-.01em}
.logo-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-top:2px}
.head-right{display:flex;align-items:center;gap:16px}
.head-tel{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-weight:700;font-size:15px;font-variant-numeric:tabular-nums}
.head-tel i{color:var(--brand)}
.head-tel:hover{color:var(--brand)}
.head-chips{padding-bottom:12px}
.chip-nav{
  display:flex;gap:8px;flex-wrap:wrap;overflow-x:auto;padding:2px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:border-color .2s ease,background-color .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand-d);background:var(--brand-soft)}
.chip.active{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d)}
.chip:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1px solid transparent;font-weight:700;
  text-align:center;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-sm{font-size:14px;padding:10px 18px}
.btn-md{font-size:15px;padding:12px 24px}
.btn-lg{font-size:16px;padding:14px 28px}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--brand-d);border-color:var(--brand-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus-visible{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-d);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* ============ 内页横幅 ============ */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,26,.78) 0%,rgba(20,23,26,.45) 100%);
}
.banner-inner{position:relative;z-index:1;padding-top:56px;padding-bottom:48px;min-height:264px;display:flex;flex-direction:column;justify-content:center}
.crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:14px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb .sep{margin:0 8px;opacity:.6}
.crumb .cur{color:#fff}
.page-banner h1{
  color:#fff;font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.02em;max-width:860px;
}
.banner-desc{margin:16px 0 0;color:rgba(255,255,255,.86);font-size:16px;max-width:760px}

/* ============ 板块 ============ */
.sec{padding:96px 0}
.sec-alt{background:var(--bg-2)}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-head h2{font-size:32px;font-weight:700;line-height:1.3;margin-bottom:14px}
.sec-head p{margin:0;color:var(--muted)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-d);background:var(--brand-soft);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;letter-spacing:.02em;
}
.eyebrow.teal{color:var(--teal);background:var(--teal-soft)}

/* ============ 参数对比表 ============ */
.table-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-table{width:100%;min-width:860px;border-collapse:collapse;font-size:15px}
.spec-table caption{text-align:left}
.spec-table thead th{
  background:var(--ink);color:#fff;font-weight:700;font-size:14px;letter-spacing:.02em;
  text-align:left;padding:18px 16px;white-space:nowrap;border:0;
}
.spec-table th,.spec-table td{padding:14px 16px;border-bottom:1px solid var(--line);vertical-align:middle;text-align:left}
.spec-table tbody th{font-weight:700;color:var(--ink);background:#fff;white-space:nowrap}
.spec-table tbody tr:nth-child(even) th,
.spec-table tbody tr:nth-child(even) td{background:var(--bg-2)}
.spec-table tbody tr:hover th,
.spec-table tbody tr:hover td{background:var(--brand-soft)}
.spec-table tbody tr:last-child th,
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table .num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.spec-table .tag-cell{color:var(--teal);font-weight:600}
.table-note{margin:16px 0 0;font-size:14px;color:var(--muted)}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split + .split{margin-top:72px}
.split.rev .split-media{order:2}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.split-body h3{font-size:22px;font-weight:600;margin-bottom:16px;line-height:1.4}
.split-body p{max-width:36em}
.point-list{margin:0 0 22px;padding:0}
.point-list li{position:relative;padding-left:22px;margin-bottom:10px;color:var(--text)}
.point-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;border-bottom:2px solid transparent;transition:border-color .2s ease,transform .2s ease,color .2s ease}
.link-arrow:hover{border-bottom-color:var(--brand);transform:translateY(-1px);color:var(--brand-d)}
.link-arrow i{font-size:12px}

/* ============ 数据徽章 ============ */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-badge{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat-badge .num{
  font-size:34px;font-weight:800;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:2px;
}
.stat-badge .num small{font-size:16px;font-weight:700}
.stat-badge .txt{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.6}
.stat-badge.amber{background:var(--amber);border-color:var(--amber)}
.stat-badge.amber .num{color:var(--ink)}
.stat-badge.amber .txt{color:rgba(20,23,26,.72)}
.stat-badge.ink{background:var(--ink);border-color:var(--ink)}
.stat-badge.ink .num{color:#fff}
.stat-badge.ink .txt{color:#9AA1A8}
.stat-note{margin:24px 0 0;font-size:14px;color:var(--muted)}

/* ============ 保障要点 ============ */
.assure-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px}
.assure-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.assure-card:hover{transform:translateY(-4px);box-shadow:var(--sh-1);border-color:#DAD5CE}
.assure-card i{font-size:20px;color:var(--brand);margin-bottom:16px;display:block}
.assure-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.assure-card p{margin:0;font-size:15px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:var(--brand);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);text-align:left;line-height:1.6;
}
.faq-q .ico{flex:none;color:var(--brand);font-size:16px;font-weight:700;transition:transform .24s ease}
.faq-item.open .faq-q .ico{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 20px 20px;margin:0;color:var(--text);font-size:16px;max-width:60em}

/* ============ 交叉链接 ============ */
.cross-links{display:flex;flex-wrap:wrap;gap:12px}
.cross-links a{
  display:inline-flex;align-items:center;gap:8px;padding:12px 20px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-pill);color:var(--ink);
  font-weight:600;font-size:15px;transition:all .22s ease;
}
.cross-links a:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-d);transform:translateY(-2px)}
.cross-links a i{font-size:12px;color:var(--brand)}

/* ============ 咨询 CTA 分区 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);border-radius:var(--r-card);
  padding:56px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:linear-gradient(135deg,rgba(232,69,44,.85),rgba(232,69,44,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:30px;font-weight:700;line-height:1.35;margin-bottom:12px;position:relative;z-index:1}
.cta-band p{color:#C9CED3;margin:0;max-width:560px;position:relative;z-index:1}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.cta-band .btn-ghost{background:transparent;border-color:#4A5157;color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:#fff;color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#C9CED3;padding:72px 0 32px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.3fr 1fr;gap:48px}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo:hover{color:#fff}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-text em{color:#8D949B}
.footer-brand p{margin:0;color:#9AA1A8;max-width:22em;font-size:14px;line-height:1.75}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#C9CED3}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;color:#C9CED3;font-size:14px;line-height:1.6}
.footer-contact i{color:var(--brand);margin-top:5px;flex:none}
.qr-box{
  width:120px;height:120px;border:1px dashed #3B4247;border-radius:var(--r-sm);
  display:grid;place-items:center;text-align:center;font-size:13px;color:#8D949B;line-height:1.6;
}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid #262B2F;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8D949B;
}
.footer-bottom a{color:#C9CED3}
.footer-bottom a:hover{color:#fff}

/* ============ 底部固定转化条 ============ */
.fix-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;
  border-top:1px solid var(--line);box-shadow:var(--sh-3);
}
.fix-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:64px;padding-top:8px;padding-bottom:8px;
}
.fix-text{font-size:15px;font-weight:700;color:var(--ink)}
.fix-actions{display:flex;align-items:center;gap:12px}

/* ============ hover / focus / active 兜底 ============ */
.card-link:hover{color:inherit}
a:focus-visible,button:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

/* ============ 响应式断点 ============ */
@media(max-width:1199px){
  .page-banner h1{font-size:36px}
  .sec-head h2{font-size:28px}
  .cta-band{padding:48px}
  .split{gap:40px}
}
@media(max-width:991px){
  .sec{padding:72px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .split.rev .split-media{order:0}
  .split + .split{margin-top:56px}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:767px){
  body{font-size:16px;padding-bottom:56px}
  .head-top{min-height:60px;gap:12px}
  .head-tel{display:none}
  .logo-mark{width:34px;height:34px;font-size:17px;border-radius:10px}
  .logo-text{font-size:16px}
  .logo-text em{font-size:11px}
  .chip-nav{flex-wrap:nowrap;padding-bottom:4px}
  .head-chips{padding-bottom:10px}
  .sec{padding:56px 0}
  .page-banner h1{font-size:28px}
  .banner-inner{padding-top:36px;padding-bottom:32px;min-height:240px}
  .banner-desc{font-size:15px}
  .sec-head{margin-bottom:28px}
  .sec-head h2{font-size:24px}
  .stat-row{grid-template-columns:1fr;gap:16px}
  .stat-badge .num{font-size:28px}
  .assure-grid{margin-top:36px}
  .cta-band{padding:32px 24px;border-radius:var(--r-card)}
  .cta-band h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:56px 0 28px}
  .footer-bottom{flex-direction:column;gap:10px}
  .fix-inner{min-height:56px;padding-top:6px;padding-bottom:6px;gap:10px}
  .fix-text{display:none}
  .fix-actions{flex:1;gap:10px}
  .fix-actions .btn{width:auto}
  .fix-actions .btn-primary{flex:3}
  .fix-actions .btn-ghost{flex:2}
  .table-note{font-size:13px}
}
@media(max-width:575px){
  .page-banner h1{font-size:26px}
  .split-media img{aspect-ratio:16/10}
}