/* roulang page: index */
:root{
  --c-primary:#12504A;
  --c-primary-deep:#0A3833;
  --c-primary-soft:#E4EFEC;
  --c-accent:#C25B2E;
  --c-accent-deep:#A9481F;
  --c-accent-soft:#FBEDE4;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#1B2421;
  --c-ink-2:#56605B;
  --c-ink-3:#8A928D;
  --c-line:#E4DED3;
  --c-error:#B23B2E;
  --c-success:#2F6D5B;
  --container:1200px;
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --shadow-1:0 2px 0 rgba(18,40,36,.05),0 10px 24px -16px rgba(18,40,36,.18);
  --shadow-2:0 3px 0 rgba(18,40,36,.07),0 12px 32px -14px rgba(18,40,36,.26);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;

  --bs-primary:#12504A;
  --bs-body-color:#1B2421;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DED3;
  --bs-border-radius:10px;
  --bs-link-color:#12504A;
  --bs-link-hover-color:#0A3833;
  --bs-font-sans-serif:var(--font-sans);
  --bs-body-font-family:var(--font-sans);
  --bs-body-font-size:16.5px;
  --bs-body-line-height:1.85;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
h1,h2,h3,h4,h5{font-weight:700;color:var(--c-ink);letter-spacing:.005em;margin:0;}
h1{font-size:40px;line-height:1.25;}
h2{font-size:30px;line-height:1.35;}
h3{font-size:21px;line-height:1.45;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease-out;}
a:hover{color:var(--c-primary-deep);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-focus,#12504A);outline-offset:2px;}
.container,.container-xl,.container-lg{max-width:var(--container);padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.section{padding:80px 0;}
.section-tight{padding:64px 0;}
.section-alt{background:var(--c-surface-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.16em;
  color:var(--c-primary);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{margin-bottom:14px;max-width:24em;}
.section-head p{color:var(--c-ink-2);font-size:16px;margin:0;}
.lead-text{color:var(--c-ink-2);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;font-size:14.5px;
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.text-link:hover{color:var(--c-accent);}
.text-link svg{transition:transform .16s ease-out;}
.text-link:hover svg{transform:translateX(3px);}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-border-radius:var(--r-btn);
  border-radius:var(--r-btn);
  font-weight:600;
  font-size:14.5px;
  letter-spacing:.02em;
  padding:.6rem 1.15rem;
  border:1px solid transparent;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;box-shadow:none;}
.btn-j9{background:var(--c-primary);color:#fff;}
.btn-j9:hover,.btn-j9:focus{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-j9:active{transform:translateY(0);box-shadow:none;}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover,.btn-accent:focus{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary);}
.btn-lg-j9{padding:.8rem 1.5rem;font-size:15.5px;}
.btn-block{width:100%;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease-out,background-color .2s ease-out;
}
.site-header.is-scrolled{background:#fff;box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;transition:height .2s ease-out;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;flex-shrink:0;
  box-shadow:0 2px 0 rgba(10,56,51,.35);
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--c-ink-3);letter-spacing:.12em;line-height:1;}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  flex:1 1 auto;
  padding:4px 2px;
  margin-left:8px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink-2);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  white-space:nowrap;
  transition:background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-soft);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip.is-active:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;
}
.menu-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mobile-drawer{
  position:fixed;inset:0;z-index:1060;
  background:#fff;
  transform:translateX(100%);
  transition:transform .24s ease-out;
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--c-line);
}
.mobile-drawer nav{padding:8px 0;}
.mobile-drawer nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 20px;
  border-bottom:1px solid var(--c-line);
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.mobile-drawer nav a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}
.mobile-drawer-foot{padding:20px;margin-top:auto;border-top:1px solid var(--c-line);}
.close-btn{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;color:var(--c-ink);
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 64px;
  background:
    radial-gradient(760px 420px at 88% 8%, rgba(18,80,74,.08), transparent 70%),
    radial-gradient(520px 320px at 4% 92%, rgba(194,91,46,.07), transparent 72%),
    var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;}
.hero-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--c-line);border-radius:999px;
  padding:5px 14px 5px 6px;
  font-size:13px;font-weight:600;color:var(--c-ink-2);
  margin-bottom:22px;
}
.hero-brand b{color:var(--c-primary);font-weight:700;}
.hero-brand span.dot{
  width:22px;height:22px;border-radius:999px;background:var(--c-accent-soft);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-accent);font-size:11px;font-weight:700;
}
.hero h1{max-width:22ch;margin-bottom:20px;}
.hero h1 em{font-style:normal;color:var(--c-primary);border-bottom:3px solid var(--c-accent-soft);}
.hero-sub{
  font-size:19px;line-height:1.75;color:var(--c-ink-2);
  max-width:30em;margin-bottom:28px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:22px;
  padding-top:22px;border-top:1px dashed var(--c-line);
}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-2);font-weight:600;}
.trust-item svg{width:18px;height:18px;color:var(--c-primary);flex-shrink:0;}
.hero-visual{position:relative;padding-bottom:20px;}
.hero-media{
  border-radius:var(--r-media);overflow:hidden;
  border:1px solid var(--c-line);
  background:var(--c-surface-2);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:-18px;bottom:0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);
  padding:16px 18px;min-width:200px;
}
.hero-float .num{
  font-size:28px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.hero-float .lbl{font-size:12.5px;color:var(--c-ink-3);margin-top:4px;}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:72px;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:top .2s ease-out;
}
.site-header.is-scrolled ~ .anchor-bar{top:60px;}
.anchor-tab{display:flex;gap:28px;overflow-x:auto;scrollbar-width:none;}
.anchor-tab::-webkit-scrollbar{display:none;}
.anchor-tab a{
  position:relative;
  padding:15px 0;font-size:14.5px;font-weight:600;color:var(--c-ink-2);
  white-space:nowrap;
}
.anchor-tab a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:transparent;
  transition:background-color .16s ease-out;
}
.anchor-tab a:hover{color:var(--c-primary);}
.anchor-tab a.is-active{color:var(--c-primary);}
.anchor-tab a.is-active::after{background:var(--c-primary);}

/* ============ 卡片体系 ============ */
.card-base{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
}
.card-data{
  background:var(--c-primary-soft);
  border:0;
  border-radius:var(--r-card);
}
.card-media{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card-media:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6CEC0;}

/* 卖点区 */
.value-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.value-feature{padding:24px;display:flex;flex-direction:column;gap:20px;}
.value-feature .media{
  border-radius:var(--r-media);overflow:hidden;background:var(--c-surface-2);aspect-ratio:16/10;border:1px solid var(--c-line);
}
.value-feature .media img{width:100%;height:100%;object-fit:cover;}
.value-feature h3{margin-bottom:10px;}
.value-feature p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:16px;}
.value-side{display:flex;flex-direction:column;gap:16px;}
.value-mini{padding:22px;display:flex;gap:14px;align-items:flex-start;transition:transform .18s ease-out;}
.value-mini:hover{transform:translateY(-2px);}
.value-mini .ico{
  width:38px;height:38px;border-radius:10px;background:#fff;color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.value-mini h4{margin-bottom:6px;}
.value-mini p{font-size:14.5px;color:var(--c-ink-2);margin:0;}

/* 演示区 */
.demo-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px;}
.demo-row:last-child{margin-bottom:0;}
.demo-row.reverse .demo-text{order:2;}
.demo-row.reverse .demo-media{order:1;}
.demo-media{
  border-radius:var(--r-media);overflow:hidden;border:1px solid var(--c-line);
  background:var(--c-surface-2);aspect-ratio:16/10;box-shadow:var(--shadow-1);
}
.demo-media img{width:100%;height:100%;object-fit:cover;}
.demo-text h3{margin-bottom:14px;}
.demo-text p{color:var(--c-ink-2);max-width:36em;}
.point-list{list-style:none;padding:0;margin:20px 0 0;}
.point-list li{
  position:relative;padding-left:24px;margin-bottom:12px;
  font-size:15.5px;color:var(--c-ink);
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:9px;height:9px;border-radius:999px;
  background:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-soft);
}
.scene-panel{
  margin-top:48px;border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;padding:24px;
}
.scene-chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;}
.scene-chip{
  height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);font-size:14px;font-weight:600;
  transition:all .16s ease-out;
}
.scene-chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.scene-chip.is-active{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary);}
.scene-body{display:none;color:var(--c-ink-2);font-size:15.5px;}
.scene-body.is-active{display:block;}
.scene-body strong{color:var(--c-ink);}

/* 证据区 */
.stat-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  margin-bottom:40px;
}
.stat-item{padding:28px 22px;border-left:1px solid var(--c-line);}
.stat-item:first-child{border-left:0;}
.stat-num{
  font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:16px;font-weight:600;color:var(--c-ink-2);margin-left:2px;}
.stat-lbl{font-size:13px;color:var(--c-ink-3);margin-top:6px;letter-spacing:.02em;}
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px;}
.quote-card{
  background:var(--c-primary-soft);border-radius:var(--r-card);
  border-left:3px solid var(--c-primary);
  padding:24px;
}
.quote-card p{font-size:15px;color:var(--c-ink);line-height:1.85;}
.quote-card .who{font-size:12.5px;color:var(--c-ink-3);margin-top:14px;}
.mark-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.mark-item{
  border:1px solid var(--c-line);border-radius:8px;background:#fff;
  padding:10px 18px;font-size:13.5px;font-weight:600;color:var(--c-ink-3);
  letter-spacing:.04em;
  transition:color .16s ease-out,border-color .16s ease-out;
}
.mark-item:hover{color:var(--c-primary);border-color:var(--c-primary-soft);}

/* 资讯区 */
.cms-news-list{display:flex;flex-direction:column;gap:0;}
.cms-news-feature{
  display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:28px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;margin-bottom:8px;
  transition:box-shadow .18s ease-out,border-color .18s ease-out;
}
.cms-news-feature:hover{box-shadow:var(--shadow-1);border-color:#D6CEC0;}
.news-thumb{
  border-radius:var(--r-media);overflow:hidden;background:var(--c-surface-2);
  aspect-ratio:4/3;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-main{display:flex;flex-direction:column;justify-content:center;gap:12px;min-width:0;}
.news-main h3{font-size:20px;line-height:1.5;}
.news-main h3 a{color:var(--c-ink);}
.news-main h3 a:hover{color:var(--c-primary);}
.news-main .excerpt{font-size:14.5px;color:var(--c-ink-2);margin:0;}
.news-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;color:var(--c-ink-3);
}
.news-meta .sep{width:1px;height:12px;background:var(--c-line);display:inline-block;}
.tag-chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:12.5px;font-weight:600;
}
.tag-outline{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid var(--c-line);color:var(--c-ink-2);font-size:12.5px;font-weight:600;background:#fff;
}
.cms-news-item{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:20px;
  padding:20px 8px;border-bottom:1px solid var(--c-line);
  position:relative;
  transition:background-color .16s ease-out;
}
.cms-news-item::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:transparent;
  transition:background-color .16s ease-out;
}
.cms-news-item:hover::before{background:var(--c-primary);}
.cms-news-item:hover{background:#fff;}
.cms-news-item .thumb{
  width:120px;height:80px;border-radius:10px;overflow:hidden;background:var(--c-surface-2);
}
.cms-news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.cms-news-item .body{min-width:0;}
.cms-news-item h3{font-size:16.5px;line-height:1.55;margin-bottom:6px;}
.cms-news-item h3 a{color:var(--c-ink);}
.cms-news-item:hover h3 a{color:var(--c-primary);}
.cms-news-item p{
  font-size:14px;color:var(--c-ink-2);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-news-empty{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px;color:var(--c-ink-2);background:#fff;
}
.cms-news-empty svg{width:34px;height:34px;color:var(--c-primary);}
.cms-news-empty p{font-size:15px;margin:0;}

/* 价格区 */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 24px;position:relative;display:flex;flex-direction:column;height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.price-card:hover{box-shadow:var(--shadow-1);}
.price-card.is-featured{
  border:1.5px solid var(--c-primary);
  box-shadow:var(--shadow-2);
  transform:translateY(-8px);
}
.price-badge{
  position:absolute;top:-13px;left:24px;
  background:var(--c-accent);color:#fff;border-radius:999px;
  padding:3px 14px;font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.price-name{font-size:17px;font-weight:700;margin-bottom:6px;}
.price-desc{font-size:13.5px;color:var(--c-ink-3);margin-bottom:18px;}
.price-num{
  font-size:32px;font-weight:700;color:var(--c-primary);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.price-num small{font-size:13px;font-weight:500;color:var(--c-ink-3);margin-left:4px;}
.price-line{height:1px;background:var(--c-line);margin:20px 0;}
.price-list{list-style:none;padding:0;margin:0 0 24px;flex:1;}
.price-list li{
  position:relative;padding-left:26px;font-size:14.5px;color:var(--c-ink-2);margin-bottom:12px;
}
.price-list li svg{
  position:absolute;left:0;top:.42em;width:16px;height:16px;color:var(--c-primary);
}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{
  --bs-accordion-border-color:var(--c-line);
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:13px;
  --bs-accordion-bg:#fff;
  --bs-accordion-color:var(--c-ink);
  --bs-accordion-btn-color:var(--c-ink);
  --bs-accordion-btn-bg:#fff;
  --bs-accordion-active-bg:var(--c-primary-soft);
  --bs-accordion-active-color:var(--c-primary);
  --bs-accordion-body-color:var(--c-ink-2);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-icon-width:18px;
  --bs-accordion-btn-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2312504A' stroke-width='1.75' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  --bs-accordion-btn-active-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2312504A' stroke-width='1.75' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  border-radius:14px;overflow:hidden;
}
.accordion-button{
  font-size:16.5px;font-weight:600;padding:17px 22px;
  letter-spacing:.005em;
  transition:background-color .16s ease-out,color .16s ease-out;
}
.accordion-button::after{transition:transform .2s ease-out;}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-item{border-left:0;border-right:0;position:relative;}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--c-primary);}
.accordion-body{font-size:15.5px;line-height:1.85;max-width:720px;padding:6px 22px 22px;}

/* CTA 转化带 */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-deep);color:#EFEAE1;
  padding:76px 0;
  border-top:1px solid rgba(255,255,255,.1);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  opacity:.14;
}
.cta-band .container-xl{position:relative;z-index:1;}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start;}
.cta-band h2{color:#fff;margin-bottom:16px;}
.cta-band .cta-desc{color:#CFD8D4;font-size:16px;max-width:34em;}
.cta-points{list-style:none;padding:0;margin:26px 0 0;}
.cta-points li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;color:#D8D2C6;margin-bottom:12px;
}
.cta-points svg{width:18px;height:18px;color:#7FB8AC;flex-shrink:0;margin-top:.28em;}
.lead-form{
  background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-2);
  padding:26px;color:var(--c-ink);
}
.lead-form h3{font-size:19px;margin-bottom:6px;}
.lead-form .hint{font-size:13px;color:var(--c-ink-3);margin-bottom:20px;}
.form-label{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px;}
.form-control,.form-select{
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink);
  min-height:44px;
  font-size:15px;
  padding:.5rem .85rem;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.form-control::placeholder{color:#A8AFA9;font-size:14px;}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-soft);
  outline:none;
}
textarea.form-control{min-height:96px;line-height:1.7;}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin-top:12px;}

/* 页脚 */
.site-footer{
  background:var(--c-primary-deep);color:#D8D2C6;padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-text small{color:#8FA39D;}
.footer-desc{font-size:14px;line-height:1.85;color:#B9C4BF;margin:18px 0 18px;max-width:28em;}
.footer-contact{display:flex;flex-direction:column;gap:10px;}
.footer-contact span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#D8D2C6;}
.footer-contact svg{width:17px;height:17px;color:#7FB8AC;flex-shrink:0;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#D8D2C6;text-decoration:none;transition:color .16s ease-out;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 calc(20px + env(safe-area-inset-bottom));
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:#8FA39D;
}
.footer-bottom a{color:#8FA39D;}
.footer-bottom a:hover{color:#fff;}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1050;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary);color:#fff;
  border-radius:999px;padding:13px 20px;
  font-size:14.5px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .16s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--c-accent);color:#fff;}
.float-cta svg{width:16px;height:16px;}

/* 响应式 */
@media (max-width:1199.98px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .hero-grid{gap:40px;}
  .value-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .hero{padding:56px 0 48px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{max-width:none;}
  .hero-media{aspect-ratio:16/10;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;min-width:0;}
  .demo-row,.demo-row.reverse{grid-template-columns:1fr;gap:28px;}
  .demo-row.reverse .demo-text{order:1;}
  .demo-row.reverse .demo-media{order:2;}
  .quote-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;gap:28px;}
  .price-card.is-featured{transform:none;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .stat-band{grid-template-columns:1fr 1fr;}
  .stat-item{border-left:1px solid var(--c-line);}
  .stat-item:nth-child(odd){border-left:0;}
  .stat-item:nth-child(n+3){border-top:1px solid var(--c-line);}
  .cms-news-feature{grid-template-columns:1fr;}
  .news-thumb{aspect-ratio:16/10;}
  .section{padding:64px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:22px;}
  h3{font-size:18px;}
  .container,.container-xl,.container-lg{padding-left:20px;padding-right:20px;}
  .chip-nav{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-accent{display:none;}
  .anchor-bar{top:60px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .value-feature,.price-card,.lead-form{padding:20px;}
  .value-mini{padding:18px;}
  .stat-item{padding:22px 16px;}
  .stat-num{font-size:30px;}
  .cms-news-item{grid-template-columns:92px minmax(0,1fr);gap:14px;padding:16px 4px;}
  .cms-news-item .thumb{width:92px;height:66px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;
    height:56px;justify-content:center;
    padding:0 20px;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 20px -10px rgba(18,40,36,.4);
    transform:translateY(0);
  }
  body{padding-bottom:56px;}
  .accordion-button{font-size:16px;padding:15px 18px;}
  .accordion-body{padding:6px 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
  --c-primary:#12504A;
  --c-primary-deep:#0A3833;
  --c-primary-soft:#E4EFEC;
  --c-accent:#C25B2E;
  --c-accent-soft:#FBEDE4;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#1B2421;
  --c-ink-2:#56605B;
  --c-ink-3:#8A928D;
  --c-line:#E4DED3;
  --c-error:#B23B2E;
  --c-success:#2F6D5B;
  --radius-card:14px;
  --radius-media:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,40,36,.05), 0 10px 24px -16px rgba(18,40,36,.18);
  --shadow-2:0 12px 32px -14px rgba(18,40,36,.26);
  --container:1200px;
  --section-pad:80px;

  --bs-primary:#12504A;
  --bs-body-color:#1B2421;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DED3;
  --bs-border-radius:10px;
  --bs-link-color:#12504A;
  --bs-link-hover-color:#0A3833;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--c-primary-deep);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.005em;}
p{margin:0 0 1.15em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

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

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-focus-box-shadow:0 0 0 3px rgba(18,80,74,.18);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-sm{height:34px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}
.btn-accent:hover,.btn-accent:focus{background:#AA4C24;border-color:#AA4C24;color:#fff;box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(18,80,74,.35);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep);}
.btn-block{width:100%;}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--c-primary);
  border-bottom:1px solid rgba(18,80,74,.3);padding-bottom:2px;
  transition:border-color .18s ease-out,color .18s ease-out,gap .18s ease-out;
}
.text-link:hover{border-color:var(--c-primary);color:var(--c-primary-deep);gap:10px;}

/* ---------- 标签 / 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14.5px;font-weight:600;color:var(--c-ink-2);white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:rgba(18,80,74,.25);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip.is-active:hover{background:var(--c-primary-deep);color:#fff;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  border:1px solid var(--c-line);color:var(--c-ink-2);background:#fff;
}
.tag-soft{background:var(--c-primary-soft);border-color:transparent;color:var(--c-primary-deep);}
.tag-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
  transition:padding .2s ease-out;
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:72px;padding-block:10px;flex-wrap:wrap;
  transition:min-height .2s ease-out;
}
.site-header.is-compact .header-inner{min-height:60px;padding-block:6px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 auto;
  display:grid;place-items:center;color:#fff;
  background:var(--c-primary);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.28);
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{
  display:inline-flex;flex-direction:column;line-height:1.15;
  font-size:19px;font-weight:700;color:var(--c-ink);letter-spacing:.01em;
}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-ink-3);letter-spacing:.06em;margin-top:2px;}

.chip-nav{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;flex:1 1 auto;min-width:0;
  scrollbar-width:none;-ms-overflow-style:none;
  padding-block:2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  display:none;place-items:center;cursor:pointer;color:var(--c-ink);
}
.nav-toggle svg{width:20px;height:20px;}

.drawer{
  display:none;border-top:1px solid var(--c-line);background:#fff;
}
.drawer.is-open{display:block;}
.drawer ul{padding:8px 0;}
.drawer li a{
  display:block;padding:0 24px;line-height:52px;font-size:16px;font-weight:600;
  color:var(--c-ink);border-bottom:1px solid var(--c-line);
}
.drawer li:last-child a{border-bottom:0;}
.drawer li a.is-active{color:var(--c-primary);background:var(--c-primary-soft);}

/* ---------- 页内题头 ---------- */
.page-hero{
  position:relative;
  background:
    radial-gradient(900px 320px at 12% -10%, rgba(18,80,74,.08), transparent 70%),
    var(--c-surface-2);
  border-bottom:1px solid var(--c-line);
  padding-block:64px 56px;
}
.page-hero .hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:18px;}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:var(--c-ink-3);}
.page-hero h1{
  font-size:40px;line-height:1.25;margin-bottom:18px;max-width:22ch;
}
.page-hero .hero-lead{
  font-size:16.5px;color:var(--c-ink-2);max-width:640px;margin-bottom:22px;
}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;}
.hero-media{
  border-radius:var(--radius-media);overflow:hidden;background:var(--c-surface-2);
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* ---------- 通用板块 ---------- */
.section{padding-block:var(--section-pad);}
.section-alt{background:var(--c-surface);border-block:1px solid var(--c-line);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:30px;line-height:1.35;margin-bottom:14px;}
.section-head p{color:var(--c-ink-2);font-size:16px;margin-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block;}

/* ---------- 筛选 chip 行 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:16px;border:1px solid var(--c-line);border-radius:var(--radius-card);
  background:var(--c-surface);box-shadow:var(--shadow-1);margin-bottom:32px;
}
.filter-bar .filter-label{font-size:13px;color:var(--c-ink-3);font-weight:600;margin-right:4px;}
.filter-chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:13.5px;font-weight:600;
}
.filter-chip.is-on{background:var(--c-primary-soft);border-color:rgba(18,80,74,.22);color:var(--c-primary-deep);}

/* ---------- 时间线 ---------- */
.timeline{border-top:1px solid var(--c-line);}
.tl-item{
  position:relative;display:grid;grid-template-columns:96px minmax(0,1fr);gap:28px;
  padding:26px 8px 26px 14px;border-bottom:1px solid var(--c-line);
  transition:background-color .18s ease-out;
}
.tl-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;
  background:transparent;border-radius:2px;transition:background-color .18s ease-out;
}
.tl-item:hover{background:#fff;}
.tl-item:hover::before{background:var(--c-primary);}
.tl-time{
  font-size:14px;font-weight:700;color:var(--c-ink-2);line-height:1.5;
  padding-top:4px;
}
.tl-time span{display:block;font-size:12.5px;font-weight:600;color:var(--c-ink-3);letter-spacing:.06em;}
.tl-body h3{font-size:21px;line-height:1.45;margin-bottom:10px;}
.tl-body p{color:var(--c-ink-2);font-size:15.5px;max-width:720px;margin-bottom:12px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--c-line);border-radius:var(--radius-card);
  background:var(--c-surface);overflow:hidden;box-shadow:var(--shadow-1);
}
.stat-cell{padding:28px 24px;border-left:1px solid var(--c-line);}
.stat-cell:first-child{border-left:0;}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;letter-spacing:.01em;}
.stat-num em{font-style:normal;font-size:18px;margin-left:4px;color:var(--c-ink-2);font-weight:600;}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--c-ink-2);line-height:1.6;}

/* ---------- 场景（非等宽） ---------- */
.scene-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:24px;}
.card-lg{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;
}
.card-lg .media{background:var(--c-surface-2);}
.card-lg .media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-lg .body{padding:26px;}
.card-lg h3{font-size:21px;margin-bottom:10px;}
.card-lg p{color:var(--c-ink-2);font-size:15.5px;margin-bottom:14px;}
.scene-side{display:grid;gap:24px;grid-template-rows:auto 1fr;}
.soft-card{
  background:var(--c-primary-soft);border-radius:var(--radius-card);padding:24px;
  border:1px solid rgba(18,80,74,.10);
}
.soft-card h4{font-size:17px;margin-bottom:8px;color:var(--c-primary-deep);}
.soft-card p{font-size:14.5px;color:#2C4B47;margin-bottom:0;}
.media-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:18px;display:flex;gap:16px;align-items:center;
}
.media-card img{
  width:110px;height:82px;object-fit:cover;border-radius:10px;flex:0 0 auto;background:var(--c-surface-2);
}
.media-card h4{font-size:16px;margin-bottom:6px;}
.media-card p{font-size:13.5px;color:var(--c-ink-2);margin-bottom:0;}

/* ---------- FAQ ---------- */
.accordion{--bs-accordion-border-color:var(--c-line);border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;background:var(--c-surface);}
.accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{
  position:relative;padding:0 56px 0 24px;min-height:56px;
  font-size:16.5px;font-weight:600;color:var(--c-ink);background:var(--c-surface);
  box-shadow:none;border:0;border-radius:0;transition:background-color .18s ease-out,color .18s ease-out;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:transparent;border-radius:0 3px 3px 0;
}
.accordion-button:not(.collapsed){background:var(--c-primary-soft);color:var(--c-primary-deep);box-shadow:none;}
.accordion-button:not(.collapsed)::before{background:var(--c-primary);}
.accordion-button::after{
  position:absolute;right:24px;width:16px;height:16px;background-size:16px;
  transition:transform .2s ease-out;
  filter:invert(24%) sepia(28%) saturate(1200%) hue-rotate(130deg) brightness(80%) contrast(90%);
}
.accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(18,80,74,.22);}
.accordion-body{
  padding:6px 24px 26px 24px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);
  max-width:760px;background:var(--c-surface);
}

/* ---------- 转化带 ---------- */
.cta-band{
  background:var(--c-primary-deep);color:#fff;padding-block:72px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 82% 15%, rgba(255,255,255,.08), transparent 70%);
  pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:48px;align-items:start;}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:16px;max-width:20ch;}
.cta-band p{color:#D8D2C6;font-size:15.5px;}
.cta-list{display:grid;gap:12px;margin-top:24px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:#EDE7DB;}
.cta-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:#8FC7BB;}

.form-card{
  background:#fff;border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-2);color:var(--c-ink);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:13.5px;color:var(--c-ink-2);margin-bottom:20px;}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;}
.form-control,.form-select{
  width:100%;height:44px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;padding:0 14px;font-size:15px;color:var(--c-ink);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(18,80,74,.14);
}
.form-control.is-error,.form-select.is-error{border-color:var(--c-error);box-shadow:0 0 0 3px rgba(178,59,46,.12);}
.err-text{display:none;font-size:12.5px;color:var(--c-error);margin-top:6px;}
.err-text.is-on{display:block;}
.form-ok{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  font-size:14px;font-weight:600;
}
.form-ok.is-on{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:#D8D2C6;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-text small{color:#9FB6B0;}
.footer-desc{font-size:14.5px;color:#B9B2A4;margin-top:16px;max-width:340px;line-height:1.8;}
.footer-contact{display:grid;gap:10px;margin-top:18px;}
.footer-contact span{display:flex;align-items:center;gap:9px;font-size:14px;color:#D8D2C6;}
.footer-contact svg{width:18px;height:18px;color:#8FC7BB;flex:0 0 auto;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:#D8D2C6;font-size:14.5px;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding-block:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#9A938A;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .18s ease-out;
}
.float-cta svg{width:18px;height:18px;}
.float-cta:hover{background:var(--c-primary-deep);color:#fff;}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--section-pad:64px;}
  .page-hero h1{font-size:34px;}
}
@media (max-width:991.98px){
  .header-inner{gap:14px;}
  .nav-toggle{display:grid;}
  .header-actions .btn-accent{display:none;}
  .page-hero .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media img{aspect-ratio:16/10;}
  .scene-grid{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:nth-child(3){border-left:0;}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--c-line);}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  :root{--section-pad:48px;}
  body{font-size:16px;}
  .container-xl{padding-inline:20px;}
  .header-inner{min-height:auto;padding-block:10px;}
  .chip-nav{order:3;width:100%;flex:0 0 100%;margin-top:2px;}
  .brand-text{font-size:17px;}
  .page-hero{padding-block:40px 36px;}
  .page-hero h1{font-size:28px;max-width:none;}
  .section-head h2{font-size:24px;}
  .tl-item{grid-template-columns:1fr;gap:10px;padding:22px 8px 22px 14px;}
  .tl-time{display:flex;align-items:center;gap:10px;padding-top:0;}
  .tl-time span{display:inline;}
  .tl-body h3{font-size:19px;}
  .stat-band{grid-template-columns:1fr;}
  .stat-cell{border-left:0 !important;border-top:1px solid var(--c-line);}
  .stat-cell:first-child{border-top:0;}
  .stat-num{font-size:30px;}
  .card-lg .body{padding:20px;}
  .form-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;height:56px;justify-content:center;
    opacity:1;transform:none;pointer-events:auto;
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -6px 18px -12px rgba(10,56,51,.5);
    border-top:1px solid rgba(255,255,255,.14);
  }
  body{padding-bottom:64px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --c-primary:#12504A;
  --c-primary-deep:#0A3833;
  --c-primary-soft:#E4EFEC;
  --c-accent:#C25B2E;
  --c-accent-soft:#FBEDE4;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#1B2421;
  --c-ink-2:#56605B;
  --c-ink-3:#8A928D;
  --c-line:#E4DED3;
  --c-error:#B23B2E;
  --c-success:#2F6D5B;
  --radius-card:14px;
  --radius-media:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,40,36,.05), 0 10px 24px -16px rgba(18,40,36,.18);
  --shadow-2:0 12px 32px -14px rgba(18,40,36,.26);
  --container:1200px;
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:40px; --sp-6:80px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--c-primary);text-decoration:none;}
a:hover{color:var(--c-primary-deep);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.005em;}
p{margin:0 0 1.15em;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

.container-xl{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:992px){.container-xl{padding:0 24px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--shadow-1);
}
.header-inner{display:flex;align-items:center;gap:var(--sp-3);min-height:72px;transition:min-height .18s ease-out;}
.site-header.is-scrolled .header-inner{min-height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;color:#F4EFE6;flex:0 0 auto;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.22);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-weight:800;font-size:19px;color:var(--c-ink);letter-spacing:.02em;line-height:1.2;}
.brand-text small{display:block;font-size:12px;font-weight:500;color:var(--c-ink-3);letter-spacing:.04em;}
.chip-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;margin:0 auto;}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14.5px;font-weight:600;white-space:nowrap;transition:all .16s ease-out;
}
.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary);}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;}

.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.75px;background:var(--c-ink);border-radius:2px;transition:.18s ease-out;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.75px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.75px) rotate(-45deg);}
.mobile-nav{
  overflow:hidden;max-height:0;transition:max-height .22s ease-out;
  border-top:1px solid transparent;
}
.mobile-nav.is-open{max-height:460px;border-top-color:var(--c-line);}
.mobile-nav .m-nav-inner{padding:8px 20px 20px;}
.m-nav-item{
  display:flex;align-items:center;min-height:52px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink);font-weight:600;font-size:16px;
}
.m-nav-item:hover,.m-nav-item.is-active{color:var(--c-primary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;letter-spacing:.02em;line-height:1;
  padding:0 20px;height:40px;border:1px solid transparent;
  transition:transform .16s ease-out,box-shadow .16s ease-out,background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-lg{height:48px;padding:0 26px;font-size:16.5px;}
.btn-sm{height:32px;padding:0 14px;font-size:14px;}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-accent:hover{background:#AD4E26;border-color:#AD4E26;color:#fff;box-shadow:var(--shadow-2);}
.btn-solid{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.btn-solid:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.btn svg{width:17px;height:17px;}
.text-link{color:var(--c-primary);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.text-link:hover{color:var(--c-accent);}

/* ---------- article head ---------- */
.page-wrap{padding:36px 0 0;}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-3);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--c-ink-2);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line .sep{color:var(--c-ink-3);}
.breadcrumb-line .current{color:var(--c-ink-2);}

.article-head{border-bottom:1px solid var(--c-line);padding-bottom:26px;margin-bottom:34px;max-width:860px;}
.article-head h1{
  font-size:40px;line-height:1.25;letter-spacing:0;max-width:760px;margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  font-size:13px;color:var(--c-ink-3);
}
.article-meta .divider{width:1px;height:12px;background:var(--c-line);}
.meta-chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:56px;
  align-items:start;padding-bottom:64px;
}
.article-main{min-width:0;}

/* ---------- article body ---------- */
.article-body{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;letter-spacing:.01em;}
.article-body h2{
  font-size:26px;line-height:1.35;margin:56px 0 20px;padding-left:14px;
  border-left:3px solid var(--c-primary);
}
.article-body h3{font-size:20px;line-height:1.45;margin:36px 0 14px;}
.article-body h4{font-size:17px;margin:26px 0 10px;}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.15em;}
.article-body ul > li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--c-primary);border-radius:2px;
}
.article-body ol{padding-left:24px;margin:0 0 1.15em;}
.article-body ol > li{margin-bottom:10px;padding-left:4px;}
.article-body ol > li::marker{color:var(--c-primary);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-card) var(--radius-card) 0;
  color:var(--c-ink-2);font-size:16px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-media);margin:26px auto;background:var(--c-surface-2);}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-accent);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;}
.article-body thead th{background:var(--c-surface-2);font-weight:700;}
.article-body tbody tr:nth-child(even){background:#FBF9F5;}
.article-body pre{
  background:#F2EEE6;border:1px solid var(--c-line);border-radius:8px;
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.article-body code{background:#F2EEE6;border-radius:6px;padding:2px 6px;font-size:.92em;}
.article-body pre code{background:transparent;padding:0;}

.article-empty{
  max-width:640px;border:1px dashed var(--c-line);border-radius:var(--radius-card);
  padding:44px 28px;text-align:center;background:var(--c-surface);
}
.article-empty svg{width:38px;height:38px;color:var(--c-primary);margin-bottom:14px;}
.article-empty p{color:var(--c-ink-2);margin-bottom:18px;}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:88px;display:flex;flex-direction:column;gap:24px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:24px;
}
.side-card h3{font-size:16.5px;margin-bottom:14px;}
.side-card.soft{background:var(--c-primary-soft);border-color:transparent;}
.side-card.soft h3{color:var(--c-primary-deep);}
.side-link-list{list-style:none;margin:0;padding:0;}
.side-link-list li{padding:12px 0;border-bottom:1px solid var(--c-line);}
.side-link-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-link-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:15px;font-weight:600;color:var(--c-ink);}
.side-link-list a:hover{color:var(--c-primary);}
.side-link-list .tiny{display:block;font-size:12.5px;color:var(--c-ink-3);font-weight:400;margin-top:4px;}
.side-card.soft p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;margin-bottom:16px;}

/* ---------- tags / share ---------- */
.article-tail{margin-top:44px;padding-top:24px;border-top:1px solid var(--c-line);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:20px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;font-size:13.5px;color:var(--c-ink-2);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);}
.tail-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;}

.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px;}
.pn-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:20px 22px;transition:box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.pn-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--c-primary-soft);}
.pn-card span{display:block;font-size:12.5px;color:var(--c-ink-3);margin-bottom:6px;}
.pn-card strong{font-size:16px;color:var(--c-ink);font-weight:700;}
.pn-card:hover strong{color:var(--c-primary);}

/* ---------- related ---------- */
.section{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head .lead{font-size:15px;color:var(--c-ink-2);margin:10px 0 0;max-width:640px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.rel-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.rel-card figure{margin:0;aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden;}
.rel-card img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:20px 22px 22px;}
.rel-body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.rel-card:hover h3{color:var(--c-primary);}
.rel-body p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin-bottom:14px;}
.rel-meta{font-size:12.5px;color:var(--c-ink-3);}

/* ---------- faq (accordion) ---------- */
.faq-wrap{max-width:900px;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-border-radius:0;--bs-accordion-inner-border-radius:0;}
.faq-box{
  border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;background:var(--c-surface);
}
.faq-box .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-box .accordion-item:last-child{border-bottom:0;}
.faq-box .accordion-button{
  background:transparent;color:var(--c-ink);font-size:16.5px;font-weight:600;line-height:1.5;
  padding:16px 22px;min-height:56px;box-shadow:none;border-left:3px solid transparent;
}
.faq-box .accordion-button:not(.collapsed){
  background:var(--c-primary-soft);color:var(--c-primary-deep);border-left-color:var(--c-primary);
}
.faq-box .accordion-button::after{
  background-image:none;width:16px;height:16px;flex:0 0 16px;
  border-right:1.75px solid var(--c-primary);border-bottom:1.75px solid var(--c-primary);
  transform:rotate(45deg);border-radius:2px;transition:transform .18s ease-out;margin-left:16px;
}
.faq-box .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.faq-box .accordion-body{padding:8px 22px 22px;max-width:720px;color:var(--c-ink-2);font-size:15.5px;line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--c-primary-deep);color:#F2EDE4;border-radius:var(--radius-card);
  padding:56px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 82% 18%,rgba(228,239,236,.10),transparent 55%);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:48px;align-items:start;position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;margin-bottom:18px;}
.cta-band .cta-sub{color:#CFD8D3;font-size:16px;line-height:1.85;margin-bottom:22px;}
.cta-points{list-style:none;margin:0;padding:0;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#E6EDE9;font-size:15px;margin-bottom:12px;}
.cta-points svg{width:18px;height:18px;flex:0 0 18px;margin-top:5px;color:#8FBEB2;}
.form-card{
  background:#fff;color:var(--c-ink);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-2);
}
.form-card .field{margin-bottom:16px;}
.form-card label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;}
.form-control,.form-select{
  height:44px;border-radius:var(--radius-btn);border:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink);background:#fff;padding:0 14px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(18,80,74,.14);outline:none;
}
.field.has-error .form-control,.field.has-error .form-select{border-color:var(--c-error);}
.field-error{display:none;font-size:12.5px;color:var(--c-error);margin-top:6px;}
.field.has-error .field-error{display:block;}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin:14px 0 0;text-align:center;}

/* ---------- floating cta ---------- */
.floating-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;
  background:var(--c-primary);color:#fff;border-radius:999px;font-weight:600;font-size:15px;
  box-shadow:var(--shadow-2);opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .2s ease-out;
}
.floating-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.floating-cta:hover{background:var(--c-accent);color:#fff;}
.floating-cta svg{width:17px;height:17px;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-primary-deep);color:#D8D2C6;margin-top:80px;padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-text{color:#fff;font-size:19px;}
.site-footer .brand-text small{color:#9FB5AF;}
.footer-desc{font-size:14px;line-height:1.85;color:#B9C4BF;margin:16px 0 18px;max-width:340px;}
.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:14px;color:#CFD8D3;}
.footer-contact span{display:flex;align-items:center;gap:8px;}
.footer-contact svg{width:17px;height:17px;flex:0 0 17px;color:#8FBEB2;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:#D8D2C6;font-size:14.5px;text-underline-offset:3px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;
  font-size:12.5px;color:#98A9A3;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-layout{gap:40px;}
}
@media (max-width:991.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .article-aside{position:static;}
  .article-head h1{font-size:34px;}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .article-head h1{font-size:28px;max-width:none;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;margin-top:44px;}
  .article-body h3{font-size:18px;}
  .prev-next{grid-template-columns:minmax(0,1fr);}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .side-card{padding:20px;}
  .cta-band{padding:32px 20px;border-radius:var(--radius-card);}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .site-footer{padding:48px 0 24px;}
  .floating-cta{
    left:0;right:0;bottom:0;width:100%;border-radius:0;height:56px;
    justify-content:center;opacity:1;transform:none;pointer-events:auto;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .page-wrap{padding-bottom:56px;}
}

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

/* roulang page: category2 */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#12504A;
  --c-primary-deep:#0A3833;
  --c-primary-soft:#E4EFEC;
  --c-accent:#C25B2E;
  --c-accent-soft:#FBEDE4;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#1B2421;
  --c-ink-2:#56605B;
  --c-ink-3:#8A928D;
  --c-line:#E4DED3;
  --c-line-strong:#D5CCBC;
  --c-error:#B23B2E;
  --c-success:#2F6D5B;

  --container:1200px;
  --r-card:14px;
  --r-media:12px;
  --r-btn:10px;
  --r-input:10px;

  --shadow-1:0 1px 2px rgba(18,40,36,.05), 0 10px 24px -16px rgba(18,40,36,.18);
  --shadow-2:0 12px 32px -14px rgba(18,40,36,.26);

  --bs-primary:#12504A;
  --bs-primary-rgb:18,80,74;
  --bs-body-color:#1B2421;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DED3;
  --bs-border-radius:14px;
  --bs-link-color:#12504A;
  --bs-link-hover-color:#0A3833;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-font-family:var(--bs-font-sans-serif);
  --bs-body-font-size:16.5px;
  --bs-body-line-height:1.85;
}

/* ===================== 基础 reset ===================== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .16s ease-out}
a:hover{color:var(--c-accent)}
p{margin:0 0 1.15em}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:.005em}
h1{font-size:40px;line-height:1.25}
h2{font-size:30px;line-height:1.35}
h3{font-size:21px;line-height:1.45}
h4{font-size:17px;line-height:1.5}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container-xl{padding-left:24px;padding-right:24px;max-width:1240px}

/* ===================== Bootstrap 组件覆盖 ===================== */
.btn{
  --bs-btn-padding-x:20px;
  --bs-btn-padding-y:0;
  --bs-btn-font-size:15px;
  --bs-btn-border-radius:10px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .16s ease-out, box-shadow .16s ease-out, background-color .16s ease-out, border-color .16s ease-out;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-lg{height:48px;--bs-btn-padding-x:26px;--bs-btn-font-size:16px}
.btn-sm{height:32px;--bs-btn-padding-x:14px;--bs-btn-font-size:13.5px}
.btn-primary{
  --bs-btn-bg:var(--c-primary);
  --bs-btn-border-color:var(--c-primary);
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:#0E423D;
  --bs-btn-hover-border-color:#0E423D;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--c-primary-deep);
  --bs-btn-active-border-color:var(--c-primary-deep);
  --bs-btn-focus-shadow-rgb:18,80,74;
}
.btn-accent{
  --bs-btn-bg:var(--c-accent);
  --bs-btn-border-color:var(--c-accent);
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:#A94C24;
  --bs-btn-hover-border-color:#A94C24;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:#93401D;
  --bs-btn-active-border-color:#93401D;
  --bs-btn-focus-shadow-rgb:194,91,46;
  box-shadow:0 8px 18px -12px rgba(194,91,46,.9);
}
.btn-ghost{
  background:transparent;
  border:1px solid var(--c-primary);
  color:var(--c-primary);
}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary)}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13.5px;font-weight:600;
}
.badge-line{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  border:1px solid var(--c-line);color:var(--c-ink-2);
  font-size:13.5px;font-weight:600;background:#fff;
}
.badge-accent{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-accent);color:#fff;font-size:13px;font-weight:600;
  letter-spacing:.04em;
}

/* ===================== 头部导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
  transition:height .18s ease-out;
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px -10px rgba(18,80,74,.95);
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.15;letter-spacing:.01em}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-ink-3);letter-spacing:.06em;margin-top:3px}
.chip-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:2px}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;
  height:36px;padding:0 16px;border-radius:999px;
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink-2);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:all .16s ease-out;
}
.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:1080;
  background:rgba(10,56,51,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out, visibility .2s ease-out;
}
.nav-drawer.is-open{opacity:1;visibility:visible}
.nav-drawer__panel{
  position:absolute;top:0;right:0;height:100%;width:82%;max-width:360px;
  background:var(--c-surface);padding:20px;
  transform:translateX(100%);transition:transform .24s ease-out;
  display:flex;flex-direction:column;gap:20px;overflow-y:auto;
}
.nav-drawer.is-open .nav-drawer__panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{
  display:flex;align-items:center;min-height:52px;
  border-bottom:1px solid var(--c-line);
  color:var(--c-ink);font-size:16px;font-weight:600;
}
.drawer-link.is-active{color:var(--c-primary)}
.drawer-link:hover{color:var(--c-primary)}

/* ===================== 题头 ===================== */
.page-hero{
  position:relative;overflow:hidden;
  padding:40px 0 64px;
  background:linear-gradient(180deg,var(--c-primary-soft) 0%,rgba(247,244,238,0) 100%);
  border-bottom:1px solid var(--c-line);
}
.page-hero::before{
  content:"";position:absolute;top:-220px;right:-160px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(18,80,74,.08),rgba(18,80,74,0) 68%);
  pointer-events:none;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:22px}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{color:var(--c-line-strong)}
.crumb strong{color:var(--c-ink-2);font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center;position:relative;z-index:1}
.hero-copy h1{max-width:20ch}
.hero-sub{margin-top:20px;max-width:600px;color:var(--c-ink-2);font-size:17px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-media);
  border:1px solid var(--c-line);
  background:var(--c-surface-2);
}
.hero-media::after{
  content:"";position:absolute;inset:12px;border:1px dashed rgba(18,80,74,.22);
  border-radius:9px;pointer-events:none;
}

/* ===================== 通用板块 ===================== */
.section{padding:80px 0}
.section--tight{padding:56px 0}
.section--paper{background:var(--c-surface-2)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-accent)}
.section-head h2{max-width:24ch}
.section-head p{margin-top:14px;margin-bottom:0;color:var(--c-ink-2);max-width:700px}

/* ===================== 非均匀卡片网格 ===================== */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.feat-card{
  position:relative;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:transform .18s ease-out, box-shadow .18s ease-out, border-color .18s ease-out;
}
.feat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-line-strong)}
.feat-card--hero{grid-column:1 / -1}
.feat-card--hero img{
  width:100%;height:300px;object-fit:cover;background:var(--c-surface-2);
  border-bottom:1px solid var(--c-line);
}
.feat-card--hero .feat-body{padding:26px 28px 28px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:end}
.feat-card--hero h3{font-size:24px;margin-bottom:10px}
.feat-card--hero p{margin:0;color:var(--c-ink-2);max-width:640px}
.feat-card--hero::after{
  content:"";position:absolute;inset:8px;border:1px dashed rgba(18,80,74,.12);
  border-radius:8px;pointer-events:none;
}
.feat-card--row{display:grid;grid-template-columns:168px minmax(0,1fr);gap:18px;padding:16px;align-items:center}
.feat-card--row img{
  width:100%;height:126px;object-fit:cover;border-radius:var(--r-media);
  background:var(--c-surface-2);
}
.feat-card--row h4{font-size:17.5px;margin-bottom:8px}
.feat-card--row p{margin:0 0 10px;font-size:14.5px;line-height:1.75;color:var(--c-ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}
.text-link:hover{color:var(--c-accent)}
.text-link svg{width:15px;height:15px}

/* ===================== 数据带 ===================== */
.stat-band{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:34px 28px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
}
.stat-item{position:relative;padding-left:24px}
.stat-item:first-child{padding-left:0}
.stat-item+.stat-item::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--c-line)}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px}
.stat-label{font-size:13.5px;color:var(--c-ink-2);margin-top:8px}
.quote-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:28px}
.quote-card{
  background:var(--c-primary-soft);border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:24px 26px;
}
.quote-card p{margin:0 0 12px;font-size:15px;color:var(--c-ink);line-height:1.85}
.quote-card span{font-size:12.5px;color:var(--c-ink-2)}

/* ===================== 场景分区 ===================== */
.scene-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;gap:12px;
  transition:border-color .18s ease-out, transform .18s ease-out;
}
.scene-card:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
}
.scene-icon svg{width:22px;height:22px}
.scene-card h4{font-size:17px}
.scene-card p{margin:0;font-size:14.5px;color:var(--c-ink-2);line-height:1.8}

/* ===================== 流程 ===================== */
.flow-wrap{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:44px;align-items:start}
.flow-list{border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);overflow:hidden}
.flow-item{display:grid;grid-template-columns:96px minmax(0,1fr);gap:20px;padding:24px;border-bottom:1px solid var(--c-line)}
.flow-item:last-child{border-bottom:0}
.flow-item:hover{background:var(--c-primary-soft)}
.flow-index{font-size:15px;font-weight:700;color:var(--c-ink-3);font-variant-numeric:tabular-nums;letter-spacing:.08em}
.flow-item h4{font-size:17px;margin-bottom:8px}
.flow-item p{margin:0;font-size:14.5px;color:var(--c-ink-2);line-height:1.8}
.side-card{
  background:var(--c-primary-soft);border-radius:var(--r-card);padding:26px;
  border:1px solid rgba(18,80,74,.12);position:sticky;top:96px;
}
.side-card h3{font-size:19px;margin-bottom:14px}
.price-lines{margin:18px 0 0;display:flex;flex-direction:column;gap:12px}
.price-line{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:12px;border-bottom:1px dashed rgba(18,80,74,.22);font-size:14.5px;color:var(--c-ink-2)}
.price-line:last-child{border-bottom:0;padding-bottom:0}
.price-line b{font-size:20px;color:var(--c-accent);font-weight:700;font-variant-numeric:tabular-nums}
.side-note{font-size:13px;color:var(--c-ink-2);margin:18px 0 0}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{
  --bs-accordion-border-color:var(--c-line);
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:12px;
  --bs-accordion-btn-padding-x:24px;
  --bs-accordion-btn-padding-y:17px;
  --bs-accordion-btn-color:var(--c-ink);
  --bs-accordion-btn-bg:#fff;
  --bs-accordion-active-color:var(--c-primary);
  --bs-accordion-active-bg:var(--c-primary-soft);
  --bs-accordion-body-padding-x:24px;
  --bs-accordion-body-padding-y:0;
  --bs-accordion-btn-focus-box-shadow:none;
  border:1px solid var(--c-line);border-radius:14px;overflow:hidden;background:var(--c-surface);
}
.accordion-item{border:0;border-bottom:1px solid var(--c-line)}
.accordion-item:last-child{border-bottom:0}
.accordion-button{font-size:16.5px;font-weight:600;line-height:1.6;min-height:56px}
.accordion-button:not(.collapsed){box-shadow:inset 3px 0 0 var(--c-primary)}
.accordion-button::after{
  width:18px;height:18px;background-size:18px;
  transition:transform .18s ease-out;
}
.accordion-body{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);max-width:720px}

/* ===================== CTA 与表单 ===================== */
.cta-band{
  position:relative;background:var(--c-primary-deep);color:#fff;overflow:hidden;
  padding:76px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:.14;pointer-events:none;
}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:52px;align-items:start}
.cta-band h2{color:#fff;max-width:22ch}
.cta-band .cta-lead{color:rgba(255,255,255,.78);margin-top:16px;max-width:560px}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.9)}
.check-list svg{width:19px;height:19px;flex:0 0 auto;margin-top:4px;color:#8FC9B9}
.form-card{background:#fff;border-radius:var(--r-card);box-shadow:var(--shadow-2);padding:28px}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-hint{margin:0 0 20px;font-size:14px;color:var(--c-ink-2)}
.form-label{font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.form-control,.form-select{
  height:44px;border-radius:var(--r-input);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:15.5px;padding:0 14px;
  box-shadow:none;
}
.form-control::placeholder{color:var(--c-ink-3)}
textarea.form-control{height:auto;min-height:104px;padding:10px 14px;line-height:1.7}
.form-control:focus,.form-select:focus{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(18,80,74,.12);outline:none}
.form-error{display:none;font-size:12.5px;color:var(--c-error);margin-top:6px}
.field-invalid .form-control,.field-invalid .form-select{border-color:var(--c-error)}
.field-invalid .form-error{display:block}
.form-note{font-size:12.5px;color:var(--c-ink-3);margin:14px 0 0}
.form-success{
  display:none;margin-top:16px;padding:12px 14px;border-radius:10px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:14px;
}
.form-success.is-visible{display:block}

/* ===================== 浮动 CTA ===================== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;
  height:50px;padding:0 22px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .22s ease-out, transform .22s ease-out, background-color .16s ease-out;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:#0E423D;color:#fff}
.float-cta svg{width:18px;height:18px}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--c-primary-deep);color:#D8D2C6;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand-text{color:#fff;font-size:18px}
.site-footer .brand-text small{color:rgba(216,210,198,.7)}
.footer-desc{margin:16px 0 0;font-size:14px;line-height:1.85;color:rgba(216,210,198,.82);max-width:340px}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.footer-contact span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(216,210,198,.86)}
.footer-contact svg{width:17px;height:17px;flex:0 0 auto}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:#D8D2C6;font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(216,210,198,.7);
}

/* ===================== 响应式 ===================== */
@media (max-width:1199.98px){
  h1{font-size:34px}
  h2{font-size:26px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-copy h1{max-width:100%}
  .hero-media img{aspect-ratio:16/10}
  .scene-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 20px}
  .stat-item:nth-child(3){padding-left:0}
  .stat-item:nth-child(3)::before{display:none}
  .flow-wrap{grid-template-columns:1fr}
  .side-card{position:static}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .feat-card--hero img{height:250px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  h1{font-size:28px}
  h2{font-size:21px}
  h3{font-size:18px}
  .header-inner{height:auto;flex-wrap:wrap;gap:12px;padding:12px 0}
  .site-header.is-scrolled .header-inner{height:auto}
  .chip-nav{order:3;flex:1 1 100%;padding-bottom:2px}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .section{padding:48px 0}
  .section-head{margin-bottom:32px}
  .card-grid{grid-template-columns:1fr}
  .feat-card--hero img{height:200px}
  .feat-card--hero .feat-body{grid-template-columns:1fr;padding:20px;align-items:start}
  .feat-card--hero h3{font-size:20px}
  .feat-card--row{grid-template-columns:1fr;padding:20px}
  .feat-card--row img{height:170px}
  .quote-row{grid-template-columns:1fr}
  .scene-row{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr;padding:26px 20px}
  .stat-item{padding-left:0;padding-bottom:18px;border-bottom:1px solid var(--c-line)}
  .stat-item:last-child{border-bottom:0;padding-bottom:0}
  .stat-item+.stat-item::before{display:none}
  .flow-item{grid-template-columns:56px minmax(0,1fr);padding:20px;gap:14px}
  .cta-band{padding:52px 0}
  .form-card{padding:20px}
  .faq-wrap .accordion-button{padding:15px 18px;font-size:15.5px;min-height:52px}
  .accordion-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:48px 0 96px}
  .float-cta{
    right:0;left:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
  }
}
@media (max-width:575.98px){
  .container-xl{padding-left:20px;padding-right:20px}
  .hero-media::after{inset:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
  --c-primary:#12504A;
  --c-primary-deep:#0A3833;
  --c-primary-soft:#E4EFEC;
  --c-accent:#C25B2E;
  --c-accent-soft:#FBEDE4;
  --c-bg:#F7F4EE;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFEAE1;
  --c-ink:#1B2421;
  --c-ink-2:#56605B;
  --c-ink-3:#8A928D;
  --c-line:#E4DED3;
  --c-error:#B23B2E;
  --c-success:#2F6D5B;
  --c-focus:#12504A;
  --radius-card:14px;
  --radius-media:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,40,36,.05), 0 10px 24px -16px rgba(18,40,36,.18);
  --shadow-2:0 12px 32px -14px rgba(18,40,36,.26);
  --container:1200px;

  --bs-primary:#12504A;
  --bs-primary-rgb:18,80,74;
  --bs-body-color:#1B2421;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DED3;
  --bs-border-radius:14px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:14px;
  --bs-link-color:#12504A;
  --bs-link-hover-color:#0A3833;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -webkit-text-size-adjust:100%;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.005em;color:var(--c-ink)}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-focus);outline-offset:2px}
.container-xl{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  --bs-btn-focus-box-shadow:none;
  border-radius:var(--radius-btn);
  font-weight:600;
  font-size:15px;
  letter-spacing:.02em;
  line-height:1;
  padding:0 20px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  transition:transform .16s ease-out, box-shadow .16s ease-out, background-color .16s ease-out, color .16s ease-out, border-color .16s ease-out;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;box-shadow:var(--shadow-1)}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover,.btn-accent:focus{background:#A94C24;border-color:#A94C24;color:#fff;box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}

.text-link{
  color:var(--c-primary);
  font-weight:600;
  font-size:14.5px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  text-decoration:underline;
  text-underline-offset:4px;
  text-decoration-thickness:1px;
}
.text-link:hover{color:var(--c-primary-deep);text-underline-offset:5px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .18s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  padding:16px 0;
  transition:padding .18s ease-out;
}
.site-header.is-scrolled .header-inner{padding:10px 0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--c-primary)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-primary);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{display:flex;flex-direction:column;font-size:19px;font-weight:700;line-height:1.1;letter-spacing:.01em}
.brand-text small{font-size:11.5px;font-weight:500;color:var(--c-ink-3);letter-spacing:.06em;margin-top:3px}
.chip-nav{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink-2);
  font-size:14.5px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  flex:0 0 auto;
  transition:background-color .16s ease-out,color .16s ease-out,border-color .16s ease-out;
}
.chip:hover{background:var(--c-primary-soft);border-color:var(--c-primary-soft);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.header-cta{flex:0 0 auto;height:42px;font-size:14.5px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:10px;
  background:#fff;
  color:var(--c-primary);
  margin-left:auto;
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:1060;background:rgba(15,32,29,.42);
  opacity:0;visibility:hidden;transition:opacity .18s ease-out,visibility .18s ease-out;
}
.mobile-drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:4px;
  transform:translateX(12px);transition:transform .2s ease-out;
  overflow-y:auto;
}
.mobile-drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-close{
  align-self:flex-end;width:38px;height:38px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);display:grid;place-items:center;cursor:pointer;margin-bottom:12px;
}
.drawer-link{
  display:flex;align-items:center;
  min-height:52px;
  border-bottom:1px solid var(--c-line);
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--c-primary)}
.drawer-panel .btn{margin-top:20px;width:100%}

/* ---------- 分类页题头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 56px;
  background:linear-gradient(180deg,#FCFAF6 0%,var(--c-bg) 100%);
  border-bottom:1px solid var(--c-line);
}
.page-hero::after{
  content:"";
  position:absolute;
  width:620px;height:620px;right:-180px;top:-260px;
  background:radial-gradient(circle,rgba(18,80,74,.08) 0%,rgba(18,80,74,0) 68%);
  pointer-events:none;
}
.crumb{
  font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-bottom:20px;position:relative;z-index:1;
}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{color:var(--c-line)}
.crumb .current{color:var(--c-ink-2)}
.page-hero-grid{
  display:grid;
  grid-template-columns:1.3fr .85fr;
  gap:48px;
  align-items:center;
  position:relative;z-index:1;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.25;
  max-width:22ch;
  margin-bottom:18px;
}
.page-hero-lead{
  font-size:16.5px;color:var(--c-ink-2);max-width:52ch;line-height:1.85;
}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.filter-chip{
  height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--c-line);background:transparent;
  color:var(--c-ink-2);font-size:13.5px;font-weight:600;
  display:inline-flex;align-items:center;
}
.filter-chip.is-on{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
.page-hero-media{
  border-radius:var(--radius-media);
  overflow:hidden;
  background:var(--c-surface-2);
  box-shadow:var(--shadow-2);
}
.page-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0}
.section-tight{padding:56px 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:clamp(21px,2.4vw,30px);line-height:1.35;margin-bottom:14px}
.section-head p{color:var(--c-ink-2);font-size:16px}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

/* ---------- 清单条目 + 侧栏 ---------- */
.list-shell{
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  background:var(--c-surface);
  overflow:hidden;
}
.list-row{
  position:relative;
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:20px;
  align-items:center;
  padding:24px;
  border-bottom:1px solid var(--c-line);
  transition:background-color .16s ease-out;
}
.list-row:last-child{border-bottom:0}
.list-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;
  background:var(--c-primary);transform:scaleY(0);transform-origin:center;
  transition:transform .18s ease-out;
}
.list-row:hover{background:#FBFAF7}
.list-row:hover::before{transform:scaleY(1)}
.list-num{
  font-size:22px;font-weight:700;color:var(--c-ink-3);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.list-name{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:6px;transition:color .16s ease-out}
.list-row:hover .list-name{color:var(--c-primary)}
.list-desc{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;margin:0;max-width:56ch}
.list-actions{display:flex;align-items:center;gap:12px}

.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px}
.side-card{background:var(--c-primary-soft);border-radius:var(--radius-card);padding:24px}
.side-card h3{font-size:17px;margin-bottom:16px;color:var(--c-primary-deep)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.side-list svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:var(--c-primary)}
.side-cta{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
}
.side-cta h3{font-size:17px;margin-bottom:10px}
.side-cta p{font-size:14.5px;color:var(--c-ink-2);margin-bottom:18px}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.stat-item{padding:26px 24px;border-right:1px solid var(--c-line)}
.stat-item:last-child{border-right:0}
.stat-num{
  font-size:34px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;line-height:1.1;
}
.stat-label{font-size:13.5px;color:var(--c-ink-2);margin-top:8px}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  padding:24px;
  transition:transform .18s ease-out, box-shadow .18s ease-out;
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.flow-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:var(--c-accent-soft);color:var(--c-accent);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.flow-card h3{font-size:17px;margin-bottom:8px}
.flow-card p{font-size:14.5px;color:var(--c-ink-2);line-height:1.75;margin:0}

/* ---------- FAQ ---------- */
.accordion{
  --bs-accordion-border-color:var(--c-line);
  --bs-accordion-border-radius:14px;
  --bs-accordion-inner-border-radius:14px;
  --bs-accordion-btn-focus-border-color:var(--c-line);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-active-bg:var(--c-primary-soft);
  --bs-accordion-active-color:var(--c-primary-deep);
  --bs-accordion-btn-color:var(--c-ink);
  border:1px solid var(--c-line);
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--c-surface);
}
.accordion-item{border:0;border-bottom:1px solid var(--c-line);border-radius:0!important;background:var(--c-surface)}
.accordion-item:last-child{border-bottom:0}
.accordion-button{
  font-size:16.5px;font-weight:600;line-height:1.5;
  padding:18px 24px;background:var(--c-surface);
  border-left:3px solid transparent;border-radius:0!important;
  box-shadow:none!important;
  transition:background-color .16s ease-out,border-color .16s ease-out,color .16s ease-out;
}
.accordion-button:not(.collapsed){
  background:var(--c-primary-soft);
  color:var(--c-primary-deep);
  border-left-color:var(--c-primary);
  box-shadow:none;
}
.accordion-button::after{
  background-image:none;
  content:"";
  width:14px;height:14px;
  border-right:2px solid var(--c-ink-3);
  border-bottom:2px solid var(--c-ink-3);
  transform:rotate(45deg);
  transition:transform .2s ease-out;
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{border-color:var(--c-primary);transform:rotate(-135deg)}
.accordion-body{
  padding:4px 24px 24px;
  font-size:15.5px;color:var(--c-ink-2);line-height:1.85;
  max-width:760px;
}

/* ---------- 转化带 ---------- */
.cta-band{
  background:var(--c-primary-deep);
  color:#E7EDEA;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band .container-xl{position:relative;z-index:1}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,30px);line-height:1.35;margin-bottom:16px}
.cta-band p{color:#C9D4D0;font-size:15.5px;max-width:48ch}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:#E7EDEA}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:#8FC4B4}
.form-card{
  background:#fff;border-radius:var(--radius-card);padding:28px;
  box-shadow:var(--shadow-2);
}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .form-note{font-size:13.5px;color:var(--c-ink-3);margin-bottom:20px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:6px}
.form-control,.form-select{
  height:44px;border-radius:10px;border:1px solid var(--c-line);
  font-size:15px;color:var(--c-ink);background-color:#fff;
  padding:0 14px;
  transition:border-color .16s ease-out, box-shadow .16s ease-out;
}
textarea.form-control{height:auto;padding:10px 14px;line-height:1.7;resize:vertical}
.form-control:focus,.form-select:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(18,80,74,.14);
  outline:none;
}
.form-control::placeholder{color:var(--c-ink-3)}
.form-card .btn{width:100%}
.form-hint{font-size:12.5px;color:var(--c-ink-3);margin-top:12px;margin-bottom:0;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary-deep);color:#D8D2C6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.site-footer .brand-text{color:#fff}
.site-footer .brand-text small{color:#9BA6A0}
.footer-desc{font-size:14.5px;color:#B9C3BF;line-height:1.85;margin:16px 0 20px;max-width:38ch}
.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-contact span{display:flex;align-items:center;gap:8px;font-size:14px;color:#D8D2C6}
.footer-contact svg{width:18px;height:18px;color:#8FC4B4;flex:0 0 auto}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#D8D2C6;font-size:14.5px;transition:color .16s ease-out}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#9BA6A0;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  height:50px;padding:0 22px;border-radius:999px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s ease-out,background-color .16s ease-out;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px)}
.float-cta svg{width:18px;height:18px}

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

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero-grid{gap:36px}
}
@media (max-width:991.98px){
  .container-xl{padding-left:20px;padding-right:20px}
  .header-inner{flex-wrap:wrap;gap:12px;padding:14px 0}
  .chip-nav{order:3;width:100%;margin-left:0;padding-bottom:2px}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .brand{margin-right:auto}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .page-hero-media{order:2}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .side-stack{position:static;top:auto}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line)}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  body{padding-bottom:0}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .page-hero{padding:32px 0 40px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
  .list-row{grid-template-columns:44px 1fr;gap:14px;padding:20px}
  .list-num{font-size:9px;font-size:18px}
  .list-actions{grid-column:2;justify-self:start}
  .list-row .btn{height:36px;font-size:14px;padding:0 16px}
  .flow-grid{grid-template-columns:1fr}
  .stat-item{padding:20px}
  .stat-num{font-size:28px}
  .accordion-button{padding:16px 20px;font-size:16px}
  .accordion-body{padding:4px 20px 20px}
  .form-card{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;
    justify-content:center;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.is-visible{transform:translateY(0)}
}
@media (max-width:519.98px){
  .page-hero h1{max-width:none}
  .list-row{grid-template-columns:1fr;gap:10px}
  .list-actions{grid-column:1}
  .side-card,.side-cta{padding:20px}
}