/* roulang page: index */
:root{
  --brand:#1F7A6D;
  --brand-2:#2FA08D;
  --brand-ink:#155F55;
  --brand-soft:rgba(31,122,109,.08);
  --brand-soft-2:rgba(31,122,109,.14);
  --accent:#F28C4B;
  --accent-ink:#D9743A;
  --gold:#E8B44A;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --line:#E2EBE8;
  --text:#14201E;
  --muted:#5B6B67;
  --dark:#0E2B27;
  --dark-2:#123A34;
  --neon:#4EE0C0;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow:0 10px 30px rgba(20,32,30,.08);
  --shadow-hover:0 18px 40px rgba(20,32,30,.14);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-ink);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
h1,h2,h3,h4{font-weight:600;line-height:1.3;letter-spacing:-.2px;margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container-xl{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:88px 0 0;}
.section-last{padding-bottom:0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-ink);
  background:var(--brand-soft);border:1px solid var(--brand-soft-2);
  padding:6px 14px;border-radius:999px;letter-spacing:.3px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,30,.08);border-bottom-color:var(--line);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:72px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text);white-space:nowrap;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 38px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 6px 16px rgba(31,122,109,.28);
}
.brand-text{letter-spacing:.2px;}
.nav-chips{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;}
.chip{
  height:36px;display:inline-flex;align-items:center;
  padding:0 16px;border-radius:999px;font-size:14px;font-weight:500;
  color:#3B4A47;background:transparent;border:1px solid transparent;
  white-space:nowrap;transition:all .2s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand-ink);}
.chip.is-active{background:var(--brand);color:#fff;box-shadow:0 6px 14px rgba(31,122,109,.26);}
.chip.is-active:hover{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);display:grid;place-items:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-nav{border-top:1px solid var(--line);background:#fff;padding:16px 0 20px;}
.mobile-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.mobile-nav .btn-brand{width:100%;justify-content:center;}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff;font-weight:600;font-size:15px;border:0;
  box-shadow:0 8px 20px rgba(31,122,109,.24);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(31,122,109,.32);filter:saturate(1.05);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-sm);
  background:#fff;border:1px solid var(--brand);color:var(--brand-ink);
  font-weight:600;font-size:15px;transition:all .22s ease;
}
.btn-ghost:hover{background:var(--brand-soft);transform:translateY(-2px);color:var(--brand-ink);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--radius-sm);
  background:linear-gradient(135deg,var(--accent),var(--gold));
  color:#2A1508;font-weight:700;font-size:15px;border:0;
  box-shadow:0 10px 24px rgba(242,140,75,.32);transition:all .22s ease;
}
.btn-accent:hover{color:#2A1508;transform:translateY(-2px);box-shadow:0 16px 30px rgba(242,140,75,.4);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand-ink);
}
.btn-text:hover{gap:10px;color:var(--brand);}

/* ============ Hero ============ */
.hero{padding:56px 0 8px;}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:700;line-height:1.18;letter-spacing:-.6px;
  margin:18px 0 16px;
}
.hero-sub{font-size:17px;line-height:1.82;color:var(--muted);max-width:580px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:10px;}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);border:1px solid var(--brand-soft-2);
  color:var(--brand-ink);font-size:12.5px;font-weight:600;
  padding:7px 14px;border-radius:999px;
}
.stat-pill i{font-size:12px;}
.stat-pill b{font-size:14px;font-variant-numeric:tabular-nums;}
.hero-visual{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  min-height:420px;background:#DDE7E4;box-shadow:var(--shadow-hover);
}
.hero-visual img{width:100%;height:100%;min-height:420px;object-fit:cover;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(14,43,39,.78),rgba(31,122,109,.42) 52%,rgba(242,140,75,.5));
}
.hero-status{
  position:absolute;left:20px;top:20px;
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(14,43,39,.72);color:#D9F2EC;
  border:1px solid rgba(78,224,192,.45);
  padding:8px 15px;border-radius:999px;font-size:13px;font-weight:500;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--neon);box-shadow:0 0 0 4px rgba(78,224,192,.18);}
.float-badge{
  position:absolute;right:20px;bottom:20px;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border-radius:var(--radius-md);padding:14px 18px;
  box-shadow:0 12px 30px rgba(14,43,39,.24);
  border:1px solid rgba(255,255,255,.7);
}
.float-badge .fb-label{font-size:12px;color:var(--muted);margin-bottom:2px;}
.float-badge .fb-value{font-size:20px;font-weight:700;color:var(--brand-ink);font-variant-numeric:tabular-nums;}
.float-badge .fb-note{font-size:12px;color:var(--accent-ink);font-weight:600;}

/* ============ 卡片 ============ */
.bento-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D2E3DE;}
.card-media{position:relative;background:#E9EFED;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.bento-card:hover .card-media img{transform:scale(1.03);}
.card-media.lg{aspect-ratio:16/9;}
.card-media.md{aspect-ratio:16/10;}
.card-media.sm{aspect-ratio:4/3;}
.corner-tag{
  position:absolute;left:14px;top:14px;
  background:rgba(14,43,39,.8);color:#EAF6F2;
  font-size:12px;font-weight:500;padding:5px 12px;border-radius:999px;
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;line-height:1.4;}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--brand-ink);}
.card-desc{color:var(--muted);font-size:14.5px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:6px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--brand-ink);
  background:var(--brand-soft);border:1px solid var(--brand-soft-2);
  padding:4px 12px;border-radius:999px;
}
.tag-warm{color:#8A4A18;background:rgba(242,140,75,.12);border-color:rgba(242,140,75,.24);}
.card-num{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}

/* ============ 深色面板 ============ */
.dark-panel{
  background:
    radial-gradient(circle at 12% 18%,rgba(47,160,141,.3),transparent 55%),
    radial-gradient(circle at 88% 80%,rgba(242,140,75,.22),transparent 55%),
    linear-gradient(140deg,#0E2B27,#123A34 58%,#0E2B27);
  border:1px solid rgba(47,160,141,.35);
  border-radius:var(--radius-xl);
  padding:46px;
  color:#DCEFEA;
  position:relative;overflow:hidden;
}
.dark-panel h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.dark-panel p{color:#A8C7C0;font-size:15px;line-height:1.8;}
.step-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(122,214,197,.22);
  border-radius:var(--radius-md);padding:22px;height:100%;
  transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.step-item:hover{border-color:rgba(78,224,192,.5);background:rgba(255,255,255,.09);transform:translateY(-3px);}
.step-num{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,#2FA08D,#4EE0C0);
  color:#052A24;font-weight:700;font-size:15px;margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.step-item h3{color:#fff;font-size:17px;margin-bottom:8px;}
.step-item p{color:#9FC3BC;font-size:14px;}

/* ============ 数据条 / 保障条 ============ */
.support-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;
}
.support-item{display:flex;gap:14px;align-items:flex-start;}
.support-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;
  display:grid;place-items:center;font-size:17px;
  background:var(--brand-soft);color:var(--brand-ink);
  border:1px solid var(--brand-soft-2);
}
.support-item h3{font-size:15.5px;margin-bottom:4px;}
.support-item p{font-size:13.5px;color:var(--muted);line-height:1.66;}

/* ============ 评价轮播 ============ */
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;height:100%;display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{
  width:46px;height:46px;flex:0 0 46px;border-radius:50%;
  display:grid;place-items:center;font-weight:700;color:#fff;font-size:16px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.avatar.alt{background:linear-gradient(135deg,var(--accent),var(--gold));color:#33200B;}
.avatar.alt2{background:linear-gradient(135deg,#123A34,#2FA08D);}
.review-name{font-size:15px;font-weight:600;}
.review-role{font-size:12.5px;color:var(--muted);}
.stars{display:flex;gap:3px;color:var(--gold);font-size:13px;}
.review-text{font-size:14.5px;color:#37453F;line-height:1.8;flex:1;}
.review-date{font-size:12.5px;color:var(--muted);}
.carousel-indicators{margin-bottom:0;position:static;margin-top:26px;}
.carousel-indicators [data-bs-target]{
  width:8px;height:8px;border-radius:50%;background:#C6D6D1;
  border:0;opacity:1;margin:0 5px;transition:all .2s ease;
}
.carousel-indicators .active{background:var(--brand);width:24px;border-radius:999px;}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:
    radial-gradient(circle at 8% 20%,rgba(78,224,192,.22),transparent 55%),
    linear-gradient(135deg,#1F7A6D,#2FA08D 55%,#F28C4B);
  border-radius:var(--radius-xl);
  padding:38px 42px;color:#fff;
  box-shadow:0 18px 44px rgba(31,122,109,.26);
  flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.2vw,27px);color:#fff;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;}

/* ============ 最新信息 ============ */
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D2E3DE;}
.news-thumb{position:relative;aspect-ratio:16/9;background:#E9EFED;overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{font-size:17px;line-height:1.5;}
.news-title a{color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--brand-ink);}
.news-sum{font-size:14px;color:var(--muted);line-height:1.74;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:8px;font-size:12.5px;color:var(--muted);}
.news-link{font-weight:600;font-size:13px;color:var(--brand-ink);display:inline-flex;align-items:center;gap:6px;}
.news-link:hover{gap:10px;color:var(--brand);}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:52px 24px;text-align:center;color:var(--muted);
}
.news-empty i{font-size:26px;color:#A9BFB9;margin-bottom:14px;display:block;}
.news-empty p{font-size:15px;margin-bottom:16px;}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-md);
  background:#fff;margin-bottom:12px;overflow:hidden;
}
.faq-accordion .accordion-button{
  font-size:16px;font-weight:600;color:var(--text);
  background:#fff;padding:20px 24px;min-height:56px;
  box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-ink);
  background:var(--brand-soft);
  box-shadow:inset 3px 0 0 var(--brand);
}
.faq-accordion .accordion-button::after{
  background-image:none;
  font-family:"Font Awesome 6 Free";font-weight:900;content:"\f078";
  font-size:13px;width:auto;height:auto;transition:transform .25s ease;color:var(--brand);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq-accordion .accordion-body{padding:4px 24px 22px;color:var(--muted);font-size:14.5px;line-height:1.82;}
.faq-accordion .accordion-button:focus{box-shadow:none;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#CFE3DE;margin-top:88px;}
.footer-top{padding:56px 0 40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-desc{font-size:14px;line-height:1.85;color:#A8C7C0;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#CFE3DE;font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(207,227,222,.16);
  padding:20px 0 26px;font-size:13px;color:#8FB1AA;
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
}
.footer-bottom a{color:#8FB1AA;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container-xl{max-width:100%;}
}
@media (max-width:991.98px){
  .section{padding:64px 0 0;}
  .hero{padding:36px 0 4px;}
  .hero-visual,.hero-visual img{min-height:280px;}
  .dark-panel{padding:32px;}
  .support-strip{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:30px 28px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:767.98px){
  .review-slide .review-col:nth-child(n+2){display:none;}
  .hero-visual,.hero-visual img{min-height:240px;}
  .float-badge{right:14px;bottom:14px;padding:11px 14px;}
  .float-badge .fb-value{font-size:17px;}
  .brand{font-size:16px;}
}
@media (max-width:575.98px){
  .section{padding:40px 0 0;}
  .hero h1{font-size:clamp(26px,8vw,32px);}
  .hero-sub{font-size:15.5px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%;}
  .support-strip{grid-template-columns:1fr;padding:20px;}
  .cta-band{padding:26px 22px;}
  .cta-band .btn-accent{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --primary:#1F7A6D;
  --primary-dark:#155D53;
  --primary-soft:rgba(31,122,109,.09);
  --primary-line:rgba(31,122,109,.16);
  --accent:#F28C4B;
  --accent-dark:#DB7534;
  --gold:#E8B44A;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --border:#E2EBE8;
  --ink:#14201E;
  --ink-2:#31423E;
  --muted:#5B6B67;
  --dark:#0E2B27;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:14px;
  --shadow-1:0 10px 30px rgba(20,32,30,.08);
  --shadow-2:0 18px 40px rgba(20,32,30,.14);
  --grad-cloud:linear-gradient(135deg,#1F7A6D 0%,#3FA795 48%,#F28C4B 100%);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
a:hover{color:var(--primary);}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{font-weight:600;line-height:1.35;margin:0;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,122,109,.28);border-radius:10px;}
.container-xl{width:100%;max-width:1320px;margin:0 auto;padding:0 20px;}
.section{padding:88px 0;}
.section-sm{padding:56px 0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  box-shadow:0 8px 26px rgba(20,32,30,.09);
  border-bottom-color:var(--border);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;background:var(--grad-cloud);
  box-shadow:0 8px 18px rgba(31,122,109,.28);
}
.brand-text{font-size:18px;font-weight:600;letter-spacing:.2px;white-space:nowrap;}
.nav-chips{gap:8px;flex:1 1 auto;justify-content:center;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:14.5px;color:#41514D;white-space:nowrap;
  border:1px solid transparent;
}
.chip:hover{background:var(--primary-soft);color:var(--primary);}
.chip.is-active{background:var(--primary);color:#fff;box-shadow:0 8px 18px rgba(31,122,109,.24);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:12px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--primary);
  box-shadow:0 10px 22px rgba(31,122,109,.22);
}
.btn-cta:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(31,122,109,.3);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:12px;
  border:1px solid var(--primary-line);color:var(--primary);font-weight:600;font-size:15px;background:#fff;
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{width:18px;height:2px;background:var(--ink);border-radius:2px;display:block;}
.mobile-nav{border-top:1px solid var(--border);background:#fff;padding:14px 0 22px;}
.mobile-nav .m-chip{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:15.5px;color:var(--ink-2);border-bottom:1px dashed var(--border);
}
.mobile-nav .m-chip.is-active{color:var(--primary);font-weight:600;}
.mobile-nav .btn-cta{width:100%;margin-top:16px;}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);padding:14px 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:10px;opacity:.6;}
.crumb .is-current{color:var(--ink);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章布局 ============ */
.article-shell{padding:40px 0 72px;}
.article-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:34px 36px 40px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 13px;border-radius:999px;font-size:13px;
  background:var(--primary-soft);color:var(--primary);
  border:1px solid var(--primary-line);margin-bottom:18px;
}
.article-h1{font-size:clamp(26px,3.4vw,40px);line-height:1.28;margin-bottom:18px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;color:var(--muted);font-size:13.5px;}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C7D8D3;display:inline-block;}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  font-size:13px;background:rgba(242,140,75,.12);color:#B4602A;border:1px solid rgba(242,140,75,.28);
}
.cover-wrap{
  margin:26px 0 8px;border-radius:20px;overflow:hidden;background:#EDF3F1;
  aspect-ratio:16/9;position:relative;
}
.cover-wrap img{width:100%;height:100%;object-fit:cover;}

/* 正文排版 */
.article-prose{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:100%;}
.article-prose p{margin:0 0 1.2em;}
.article-prose h2{
  position:relative;font-size:clamp(21px,2.4vw,27px);color:var(--ink);
  margin:2.1em 0 .85em;padding-left:16px;
}
.article-prose h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:999px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.article-prose h3{font-size:20px;color:var(--ink);margin:1.7em 0 .7em;}
.article-prose h4{font-size:17px;color:var(--ink);margin:1.4em 0 .6em;}
.article-prose blockquote{
  margin:1.6em 0;padding:16px 20px;border-radius:12px;
  background:var(--primary-soft);border-left:4px solid var(--primary);color:#2A3C39;
}
.article-prose blockquote p:last-child{margin-bottom:0;}
.article-prose ul,.article-prose ol{padding-left:1.35em;margin:0 0 1.25em;}
.article-prose ul li{list-style:disc;margin-bottom:.5em;}
.article-prose ol li{list-style:decimal;margin-bottom:.5em;}
.article-prose img{border-radius:16px;margin:1.4em 0;}
.article-prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.article-prose table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px;}
.article-prose th,.article-prose td{border:1px solid var(--border);padding:11px 14px;text-align:left;}
.article-prose th{background:rgba(31,122,109,.08);color:var(--ink);font-weight:600;}
.article-prose pre{
  background:#F1F5F3;border:1px solid var(--border);border-radius:14px;
  padding:16px 18px;overflow:auto;font-size:14px;line-height:1.7;
}
.article-prose code{background:#F1F5F3;border-radius:6px;padding:2px 6px;font-size:14px;}
.table-scroll{overflow-x:auto;margin:1.4em 0;border-radius:14px;}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);padding:22px;
}
.side-title{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title i{color:var(--primary);}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--ink-2);
}
.toc-list a:hover{background:var(--primary-soft);color:var(--primary);}
.toc-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary-line);}
.side-cta{background:var(--dark);border-color:var(--dark);color:#CFE3DE;}
.side-cta .side-title{color:#fff;}
.side-cta p{font-size:14px;line-height:1.7;color:#B9D2CC;margin-bottom:16px;}
.side-cta .btn-cta{width:100%;background:var(--accent);border-color:var(--accent);box-shadow:0 10px 24px rgba(242,140,75,.3);}
.side-cta .btn-cta:hover{background:var(--accent-dark);border-color:var(--accent-dark);}

/* 空态 */
.empty-box{
  text-align:center;padding:64px 24px;border:1px dashed var(--border);border-radius:var(--radius-md);background:#FAFCFB;
}
.empty-box .ico{
  width:58px;height:58px;border-radius:18px;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;font-size:22px;
  background:var(--primary-soft);color:var(--primary);
}
.empty-box h3{font-size:20px;margin-bottom:8px;}
.empty-box p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* 相关推荐 */
.rel-card{
  height:100%;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:var(--primary-line);}
.rel-thumb{aspect-ratio:16/10;background:#EDF3F1;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:17.5px;line-height:1.5;}
.rel-body p{font-size:14.5px;color:var(--muted);line-height:1.7;}
.rel-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.rel-link i{transition:transform .2s ease;}
.rel-card:hover .rel-link i{transform:translateX(4px);}
.section-head{margin-bottom:34px;}
.section-head h2{font-size:clamp(23px,2.8vw,32px);}
.section-head p{color:var(--muted);margin-top:10px;font-size:15.5px;}

/* CTA 条 */
.cta-band{
  border-radius:var(--radius-lg);padding:40px 42px;
  background:var(--grad-cloud);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(31,122,109,.22);
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);color:#fff;}
.cta-band p{margin-top:8px;color:rgba(255,255,255,.9);font-size:15px;}
.cta-band .btn-cta{background:#fff;color:var(--primary);border-color:#fff;box-shadow:0 12px 26px rgba(0,0,0,.16);}
.cta-band .btn-cta:hover{background:#F4FFFC;color:var(--primary-dark);border-color:#F4FFFC;transform:translateY(-2px);}

/* 页脚 */
.site-footer{background:var(--dark);color:#CFE3DE;margin-top:80px;padding:68px 0 26px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px;background:var(--grad-cloud);color:#fff;display:inline-flex;align-items:center;justify-content:center;}
.footer-desc{font-size:14.5px;line-height:1.8;color:#A9C6C0;max-width:44ch;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14.5px;color:#B9D2CC;display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:#8FB0AA;
}

@media (max-width:1199.98px){
  .side-stack{position:static;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .article-card{padding:26px 22px 30px;border-radius:var(--radius-md);}
  .cta-band{padding:32px 26px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:44px 0;}
  .article-shell{padding:26px 0 48px;}
  .article-prose{font-size:16px;}
  .crumb{font-size:13px;}
  .crumb .is-current{max-width:100%;}
  .cover-wrap{aspect-ratio:4/3;border-radius:16px;}
  .cta-band{padding:26px 20px;border-radius:var(--radius-md);}
  .site-footer{padding:52px 0 22px;}
}
@media (max-width:575.98px){
  .container-xl{padding:0 16px;}
  .article-card{padding:22px 18px 26px;}
  .meta-row{gap:8px 12px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F7A6D;
  --c-primary-dark:#166055;
  --c-primary-soft:#E4F1EE;
  --c-primary-tint:#F2F9F7;
  --c-accent:#F28C4B;
  --c-gold:#E8B44A;
  --c-bg:#F5F8F7;
  --c-card:#FFFFFF;
  --c-border:#E2EBE8;
  --c-ink:#14201E;
  --c-muted:#5B6B67;
  --c-dark:#0E2B27;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 10px 30px rgba(20,32,30,.08);
  --sh-2:0 18px 40px rgba(20,32,30,.14);
  --grad-cloud:linear-gradient(135deg,#1F7A6D 0%,#39A08F 48%,#F28C4B 100%);
  --sec-y:88px;
  --bs-body-font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --bs-link-color:#1F7A6D;
  --bs-link-hover-color:#166055;
  --bs-body-color:#14201E;
  --bs-border-color:#E2EBE8;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  background:var(--c-bg);
  color:var(--c-ink);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease,background .25s ease,transform .25s ease,box-shadow .25s ease}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{font-weight:600;letter-spacing:.2px;line-height:1.35}
ul,ol{padding-left:1.2rem}
::selection{background:rgba(31,122,109,.18)}

.container-xl{max-width:1240px;padding-inline:20px;margin-inline:auto}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-border);box-shadow:0 8px 26px rgba(20,32,30,.08)}
.header-inner{display:flex;align-items:center;gap:18px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--c-ink);white-space:nowrap;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#E4F1EE,#FDEBDD);
  color:var(--c-primary);border:1px solid var(--c-border);
}
.brand:hover{color:var(--c-primary)}
.nav-chips{flex:1 1 auto;justify-content:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding:6px 2px}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:36px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:#3D4B47;
  background:transparent;white-space:nowrap;border:1px solid transparent;
}
.chip:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.chip.is-active{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(31,122,109,.28)}
.chip.is-active:hover{background:var(--c-primary-dark);color:#fff}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink);font-size:17px;display:grid;place-items:center;
  margin-left:auto;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.mobile-nav{border-top:1px solid var(--c-border);background:#fff;padding:16px 0 22px}
.mobile-links{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.mobile-links .chip{border:1px solid var(--c-border)}
.mobile-links .chip.is-active{border-color:var(--c-primary)}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .25s ease;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(31,122,109,.22)}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(31,122,109,.28)}
.btn-main:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,122,109,.28)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(31,122,109,.42)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-gold{background:#fff;color:var(--c-primary-dark)}
.btn-gold:hover{background:#FFFAF2;color:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(0,0,0,.16)}
.btn-sm-main{height:40px;padding:0 18px;font-size:14.5px}

/* ---------- hero ---------- */
.hero-cat{position:relative;overflow:hidden;padding:70px 0 62px;isolation:isolate}
.hero-cat-bg{position:absolute;inset:0;background-size:cover;background-position:center;z-index:-2}
.hero-cat::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,rgba(14,43,39,.94) 0%,rgba(31,122,109,.84) 52%,rgba(242,140,75,.62) 100%);
}
.hero-cat-inner{position:relative;color:#fff;max-width:900px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  color:#EAF6F3;margin-bottom:20px;
}
.hero-title{font-size:clamp(30px,3.8vw,46px);margin:0 0 16px;color:#fff}
.hero-title span{color:#FFE0C7}
.hero-sub{font-size:17px;color:rgba(255,255,255,.88);margin:0 0 26px;max-width:720px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.stat-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;padding:7px 15px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);color:#EAF6F3;
}
.stat-pill.soft{background:var(--c-primary-soft);border-color:rgba(31,122,109,.18);color:var(--c-primary-dark)}
.stat-pill i{font-size:12px;color:var(--c-gold)}
.stat-pill.soft i{color:var(--c-primary)}

/* ---------- sections ---------- */
.section{padding:var(--sec-y) 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.sec-title{font-size:clamp(24px,3vw,34px);margin:0 0 14px}
.sec-desc{color:var(--c-muted);font-size:16px;margin:0}

/* ---------- quick points ---------- */
.point-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:26px 24px;height:100%;box-shadow:var(--sh-1);transition:all .3s ease;
  display:flex;flex-direction:column;gap:12px;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(31,122,109,.3)}
.point-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary-soft),#FDEBDD);
  color:var(--c-primary);font-size:18px;
}
.point-card h3{font-size:18px;margin:0}
.point-card p{margin:0;color:var(--c-muted);font-size:14.8px}

/* ---------- article split ---------- */
.split-wrap{padding-bottom:var(--sec-y)}
.article-body{max-width:820px}
.article-block{padding-bottom:46px;margin-bottom:46px;border-bottom:1px dashed var(--c-border)}
.article-block:last-child{border-bottom:0;padding-bottom:0;margin-bottom:0}
.article-block h2{
  font-size:clamp(22px,2.4vw,28px);margin:0 0 18px;
  display:flex;align-items:center;gap:12px;
}
.article-block h2::before{
  content:"";width:5px;height:26px;border-radius:3px;flex:0 0 auto;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.article-block h3{font-size:19px;margin:26px 0 10px;color:var(--c-primary-dark)}
.article-block p{margin:0 0 14px;color:#2C3A36}
.article-block ul,.article-block ol{margin:0 0 16px;color:#2C3A36}
.article-block li{margin-bottom:8px}
.article-note{
  background:var(--c-primary-tint);border-left:4px solid var(--c-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;padding:16px 20px;color:#25403A;font-size:15.4px;
}
.figure-block{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--c-border);background:#E9F0EE;margin:22px 0}
.figure-block img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure-caption{font-size:13px;color:var(--c-muted);padding:10px 16px;background:#fff}

.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.toc-card,.side-cta{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.toc-title{font-size:15px;font-weight:600;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.toc-title i{color:var(--c-primary)}
.toc-list{list-style:none;padding:0;margin:0;display:grid;gap:4px}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14.5px;
  color:var(--c-muted);border-left:3px solid transparent;
}
.toc-list a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-left-color:var(--c-primary)}
.side-cta{
  background:linear-gradient(150deg,#0E2B27 0%,#155349 60%,#1F7A6D 100%);
  color:#fff;border-color:transparent;
}
.side-cta h3{font-size:18px;margin:0 0 10px;color:#fff}
.side-cta p{font-size:14px;color:rgba(255,255,255,.82);margin:0 0 18px}
.side-cta .btn-gold{width:100%;height:44px}
.side-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.8)}
.side-list li{display:flex;gap:8px;align-items:flex-start}
.side-list i{color:var(--c-gold);margin-top:4px;font-size:12px}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.faq-wrap .accordion-item{
  border:1px solid var(--c-border);border-radius:16px;overflow:hidden;
  background:#fff;margin-bottom:12px;box-shadow:var(--sh-1);
}
.faq-wrap .accordion-button{
  padding:17px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  background:#fff;box-shadow:none;border-radius:16px !important;gap:14px;
}
.faq-wrap .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,122,109,.18);border-color:var(--c-primary)}
.faq-wrap .accordion-button:not(.collapsed){color:var(--c-primary);background:var(--c-primary-tint)}
.faq-wrap .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  width:26px;height:26px;display:grid;place-items:center;font-size:12px;
  border-radius:50%;background:var(--c-primary-soft);color:var(--c-primary);
  transition:transform .3s ease,background .3s ease;
}
.faq-wrap .accordion-button:not(.collapsed)::after{transform:rotate(180deg);background:var(--c-primary);color:#fff}
.faq-wrap .accordion-body{padding:6px 22px 20px;color:#2C3A36;font-size:15.4px;line-height:1.8}
.faq-wrap .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--c-primary)}

/* ---------- category cards ---------- */
.cat-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-md);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);transition:all .3s ease;position:relative;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.cat-card-img{position:relative;aspect-ratio:16/10;background:#E9F0EE;overflow:hidden}
.cat-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-card-img img{transform:scale(1.03)}
.card-tag{
  position:absolute;left:14px;top:14px;font-size:12.5px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);background:rgba(255,255,255,.94);color:var(--c-primary);
}
.cat-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cat-card-body h3{font-size:18px;margin:0}
.cat-card-body p{margin:0;color:var(--c-muted);font-size:14.6px}
.cat-card-link{
  margin-top:auto;padding-top:6px;color:var(--c-primary);font-weight:600;font-size:14.5px;
  display:inline-flex;align-items:center;gap:6px;
}
.cat-card:hover .cat-card-link{gap:10px}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--grad-cloud);border-radius:var(--r-lg);color:#fff;
  padding:40px 42px;display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;box-shadow:var(--sh-2);
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);margin:0 0 8px;color:#fff}
.cta-band p{margin:0;color:rgba(255,255,255,.9);font-size:15.4px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:#CFE3DE;margin-top:20px;padding-top:64px}
.footer-top{padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#8FD3C6}
.footer-desc{color:#9FBAB4;font-size:14.4px;margin:0;max-width:340px;line-height:1.8}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#CFE3DE;font-size:14.4px;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8FA9A4;
}

@media (max-width:1199.98px){
  :root{--sec-y:72px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .header-inner{min-height:66px}
  .hero-cat{padding:56px 0 48px}
  .cta-band{padding:32px 26px;border-radius:20px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  :root{--sec-y:52px}
  .section-head{margin-bottom:32px}
  .article-block{padding-bottom:34px;margin-bottom:34px}
  .article-block h2{font-size:22px}
  .hero-sub{font-size:15.6px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 100%}
}
@media (max-width:575.98px){
  :root{--sec-y:44px}
  .container-xl{padding-inline:16px}
  .hero-cat{padding:44px 0 40px}
  .hero-title{font-size:27px}
  .point-card,.toc-card,.side-cta{padding:20px 18px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* roulang page: category2 */
:root{
  --c-primary:#1F7A6D;
  --c-primary-dark:#155C52;
  --c-primary-soft:#E7F2EF;
  --c-accent:#F28C4B;
  --c-accent-dark:#D9743A;
  --c-gold:#E8B44A;
  --c-bg:#F5F8F7;
  --c-card:#FFFFFF;
  --c-border:#E2EBE8;
  --c-text:#14201E;
  --c-muted:#5B6B67;
  --c-dark:#0E2B27;
  --c-dark-2:#123833;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:12px;
  --shadow-sm:0 10px 30px rgba(20,32,30,.08);
  --shadow-lg:0 18px 40px rgba(20,32,30,.14);
  --grad-cloud:linear-gradient(135deg,#1F7A6D 0%,#4FA795 55%,#F28C4B 130%);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{font-weight:600;line-height:1.35;color:var(--c-text);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;}

.container-xl{
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1600px){
  .container-xl{max-width:1320px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{
  box-shadow:0 10px 28px rgba(20,32,30,.10);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--c-text);
  font-weight:600;
  font-size:17px;
  letter-spacing:.2px;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--grad-cloud);
  color:#fff;
  box-shadow:0 8px 18px rgba(31,122,109,.28);
}
.brand-text{white-space:nowrap;}
.nav-chips{
  flex:1 1 auto;
  display:flex;
  align-items:center;
  gap:8px;
  overflow-x:auto;
  scrollbar-width:none;
  padding:4px 2px;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:500;
  color:var(--c-muted);
  background:transparent;
  border:1px solid transparent;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{
  color:var(--c-primary);
  background:var(--c-primary-soft);
}
.chip.is-active{
  color:#fff;
  background:var(--c-primary);
  border-color:var(--c-primary);
  box-shadow:0 8px 18px rgba(31,122,109,.24);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:none;
  border-radius:var(--r-btn);
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:0 10px 22px rgba(31,122,109,.24);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-main:hover{
  background:var(--c-primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 30px rgba(31,122,109,.30);
}
.btn-main:active{transform:translateY(0);}
.btn-main.btn-accent{
  background:var(--c-accent);
  box-shadow:0 10px 22px rgba(242,140,75,.30);
}
.btn-main.btn-accent:hover{background:var(--c-accent-dark);box-shadow:0 16px 30px rgba(242,140,75,.36);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-primary);
  background:transparent;
  color:var(--c-primary);
  font-size:15px;
  font-weight:600;
  transition:all .2s ease;
}
.btn-ghost:hover{
  background:var(--c-primary-soft);
  color:var(--c-primary-dark);
  transform:translateY(-2px);
}
.nav-toggle{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--c-border);
  background:#fff;
  color:var(--c-text);
  font-size:18px;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mobile-nav{
  border-top:1px solid var(--c-border);
  background:#fff;
  padding:14px 20px 20px;
}
.mobile-nav .chip{
  width:100%;
  justify-content:flex-start;
  height:44px;
  border-radius:12px;
  font-size:15px;
}
.mobile-nav .chip.is-active{background:var(--c-primary);}
.mobile-nav .btn-main{width:100%;margin-top:12px;}

/* ============ 小 Hero ============ */
.hero-small{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  min-height:300px;
  display:flex;
  align-items:center;
  margin-top:28px;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  box-shadow:var(--shadow-sm);
}
.hero-small::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.80) 48%,rgba(231,242,239,.55) 100%);
}
.hero-small .hero-body{
  position:relative;
  z-index:2;
  padding:48px 40px;
  max-width:760px;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:32px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(31,122,109,.12);
  border:1px solid rgba(31,122,109,.18);
  color:var(--c-primary-dark);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.hero-small h1{
  font-size:clamp(28px,4vw,44px);
  letter-spacing:.2px;
  margin-bottom:16px;
}
.hero-small h1 em{
  font-style:normal;
  color:var(--c-primary);
}
.hero-sub{
  font-size:16.5px;
  color:var(--c-muted);
  max-width:640px;
  margin-bottom:26px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.badge-data{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  border:1px solid rgba(31,122,109,.18);
  font-size:13px;
  color:var(--c-muted);
  box-shadow:0 6px 16px rgba(20,32,30,.06);
}
.badge-data b{
  font-size:16px;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  font-weight:700;
}
.badge-data i{color:var(--c-accent);font-size:13px;}

/* ============ 通用板块 ============ */
.section{padding:76px 0;}
.section-head{margin-bottom:34px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  letter-spacing:1px;
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(23px,2.8vw,32px);
  margin-bottom:10px;
}
.section-head p{color:var(--c-muted);max-width:720px;}

/* ============ 筛选条 ============ */
.filter-bar{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);
  margin-bottom:30px;
}
.filter-bar .filter-label{
  font-size:14px;
  font-weight:600;
  color:var(--c-text);
  margin-right:4px;
}
.filter-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:36px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid var(--c-border);
  background:#fff;
  color:var(--c-muted);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:all .2s ease;
}
.filter-chip:hover{
  color:var(--c-primary);
  border-color:rgba(31,122,109,.35);
  background:var(--c-primary-soft);
}
.filter-chip.is-active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  box-shadow:0 8px 18px rgba(31,122,109,.22);
}

/* ============ 卡片墙 ============ */
.wall-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.wall-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:#D2E3DE;
}
.wall-media{
  position:relative;
  overflow:hidden;
  background:#EDF3F1;
}
.wall-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.wall-card:hover .wall-media img{transform:scale(1.03);}
.wall-media.lg{height:236px;}
.wall-media.md{height:182px;}
.wall-media.sm{height:150px;}
.corner-tag{
  position:absolute;
  top:14px;
  left:14px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#fff;
  background:rgba(31,122,109,.92);
  backdrop-filter:blur(4px);
}
.corner-tag.warm{background:rgba(242,140,75,.94);}
.corner-tag.gold{background:rgba(232,180,74,.95);color:#463207;}
.wall-body{
  padding:22px 22px 20px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.wall-body h3{
  font-size:19px;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.wall-card.small .wall-body h3{font-size:16.5px;}
.wall-body p{
  color:var(--c-muted);
  font-size:14.5px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.wall-meta{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  margin-top:auto;
  padding-top:14px;
  border-top:1px dashed var(--c-border);
}
.mini-chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 11px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:500;
  color:var(--c-primary-dark);
  background:var(--c-primary-soft);
  border:1px solid rgba(31,122,109,.14);
}
.wall-link{
  margin-left:auto;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.wall-link i{transition:transform .2s ease;font-size:12px;}
.wall-card:hover .wall-link i{transform:translateX(3px);}

/* ============ 保障条 ============ */
.assure-strip{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:28px 22px;
  box-shadow:var(--shadow-sm);
}
.assure-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.assure-icon{
  width:44px;height:44px;
  flex:0 0 44px;
  border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:17px;
}
.assure-item h4{font-size:16px;margin-bottom:4px;}
.assure-item p{font-size:13.5px;color:var(--c-muted);}

/* ============ FAQ ============ */
.faq-col + .faq-col{margin-top:12px;}
@media (min-width:992px){
  .faq-col + .faq-col{margin-top:0;}
}
.accordion-item{
  border:none;
  border-radius:var(--r-md);
  background:#fff;
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  margin-bottom:12px;
}
.accordion-button{
  min-height:56px;
  padding:16px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  background:#fff;
  box-shadow:none !important;
  border-left:3px solid transparent;
  transition:all .2s ease;
}
.accordion-button:hover{background:var(--c-primary-soft);}
.accordion-button:not(.collapsed){
  color:var(--c-primary-dark);
  background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);
}
.accordion-button::after{
  width:16px;height:16px;
  background-size:16px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%231F7A6D'%3E%3Cpath d='M8 11.2 2.4 5.6l1.2-1.2L8 8.8l4.4-4.4 1.2 1.2z'/%3E%3C/svg%3E");
  transition:transform .25s ease;
}
.accordion-body{
  padding:6px 22px 22px;
  font-size:15px;
  color:var(--c-muted);
  line-height:1.8;
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  padding:44px 40px;
  background:var(--grad-cloud);
  color:#fff;
  box-shadow:0 20px 44px rgba(31,122,109,.24);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(255,255,255,.12);
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.6vw,30px);
  margin-bottom:10px;
  position:relative;
  z-index:2;
}
.cta-band p{
  color:rgba(255,255,255,.88);
  max-width:620px;
  position:relative;
  z-index:2;
  margin-bottom:0;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}
.cta-band .btn-main{
  background:#fff;
  color:var(--c-primary-dark);
  box-shadow:0 12px 26px rgba(14,43,39,.20);
}
.cta-band .btn-main:hover{background:#F4FAF8;color:var(--c-primary-dark);}
.cta-band .btn-ghost{
  border-color:rgba(255,255,255,.75);
  color:#fff;
}
.cta-band .btn-ghost:hover{
  background:rgba(255,255,255,.16);
  color:#fff;
}

/* ============ 表单 ============ */
.form-card{
  background:#fff;
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:30px 28px;
  box-shadow:var(--shadow-sm);
}
.form-card h3{font-size:20px;margin-bottom:8px;}
.form-card .form-hint{font-size:13.5px;color:var(--c-muted);margin-bottom:22px;}
.form-label{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.form-control{
  height:48px;
  border-radius:12px;
  border:1px solid #D9E5E1;
  padding:0 16px;
  font-size:15px;
  color:var(--c-text);
  background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:120px;padding:14px 16px;line-height:1.7;}
.form-control::placeholder{color:#9BAEA9;}
.form-control:focus{
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(31,122,109,.16);
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:80px;
  background:var(--c-dark);
  color:#CFE3DE;
  padding:64px 0 0;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:600;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.10);
  box-shadow:none;
  color:#7ED5C3;
}
.footer-desc{
  color:#9FBDB7;
  font-size:14px;
  max-width:360px;
  line-height:1.85;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  color:#CFE3DE;
  font-size:14px;
  transition:transform .2s ease,color .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:#fff;transform:translateX(-3px);}
.footer-bottom{
  margin-top:52px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:#8FADA7;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .wall-media.lg{height:216px;}
  .section{padding:64px 0;}
}
@media (max-width:991.98px){
  .hero-small .hero-body{padding:36px 26px;}
  .hero-small{min-height:260px;}
  .section{padding:52px 0;}
  .cta-band{padding:34px 26px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .header-inner{min-height:64px;gap:12px;}
  .brand-text{font-size:15.5px;}
  .hero-small{margin-top:18px;border-radius:20px;}
  .hero-small .hero-body{padding:28px 20px;}
  .hero-sub{font-size:15px;}
  .wall-media.lg{height:196px;}
  .wall-media.md{height:172px;}
  .wall-media.sm{height:158px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:575.98px){
  .section{padding:42px 0;}
  .filter-bar{padding:12px;}
  .filter-chip{height:34px;padding:0 13px;font-size:13.5px;}
  .assure-item{flex-direction:row;}
}

/* roulang page: category3 */
:root{
  --brand:#1F7A6D;
  --brand-dark:#155C52;
  --brand-soft:#E6F2EF;
  --accent:#F28C4B;
  --gold:#E8B44A;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --line:#E2EBE8;
  --ink:#14201E;
  --ink-2:#5B6B67;
  --dark:#0E2B27;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow:0 10px 30px rgba(20,32,30,.08);
  --shadow-hover:0 18px 40px rgba(20,32,30,.14);
  --grad:linear-gradient(135deg,#1F7A6D 0%,#3FA894 52%,#F28C4B 100%);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:hover{color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
::selection{background:rgba(31,122,109,.18);}

.container-xl{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container-xl{max-width:1320px;}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(20,32,30,.09);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;gap:16px;height:74px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.02em;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;box-shadow:0 8px 18px rgba(31,122,109,.3);
}
.brand-mark svg{display:block;}
.nav-chips{flex:1 1 auto;display:flex;align-items:center;justify-content:center;gap:8px;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14.5px;color:#3D4C49;background:transparent;border:1px solid transparent;
  white-space:nowrap;transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand);}
.chip.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,122,109,.26);}
.header-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px;}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:12px;border:0;
  background:var(--grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 22px rgba(31,122,109,.24);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-main:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(31,122,109,.32);filter:saturate(1.06);}
.btn-main:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,122,109,.28);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:12px;
  background:#fff;border:1px solid rgba(31,122,109,.42);color:var(--brand);
  font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,122,109,.24);}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;cursor:pointer;color:var(--ink);transition:background .2s ease;
}
.nav-toggle:hover{background:var(--brand-soft);}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:14px 0 20px;}
.mobile-panel.is-open{display:block;}
.mobile-links{display:flex;flex-direction:column;gap:4px;padding:0 16px;}
.mobile-links a{padding:12px 14px;border-radius:12px;font-size:15.5px;color:var(--ink);}
.mobile-links a:hover{background:var(--brand-soft);color:var(--brand);}
.mobile-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.mobile-cta{margin:14px 16px 0;}

/* ============ hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  padding:62px 0 58px;
  background-image:
    linear-gradient(118deg,rgba(14,43,39,.92) 0%,rgba(19,70,62,.8) 46%,rgba(31,122,109,.56) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,140,75,.35),rgba(242,140,75,0) 68%);pointer-events:none;
}
.page-hero .container-xl{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#A9C9C3;margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:#A9C9C3;transition:color .2s ease;}
.crumb a:hover{color:#fff;}
.crumb span.sep{color:rgba(255,255,255,.38);}
.crumb .cur{color:#fff;font-weight:600;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,48px);font-weight:600;color:#fff;max-width:900px;
}
.hero-sub{
  margin-top:18px;max-width:760px;font-size:16.5px;color:#CDE5E0;line-height:1.85;
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 15px;border-radius:999px;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.26);
  color:#EAF5F2;font-size:13.5px;
}
.badge-pill b{font-variant-numeric:tabular-nums;font-weight:700;color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.btn-onhero{
  display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 24px;border-radius:12px;
  background:#fff;color:var(--brand-dark);font-weight:600;font-size:15px;
  box-shadow:0 14px 30px rgba(0,0,0,.18);transition:transform .2s ease,background .2s ease;
}
.btn-onhero:hover{background:#FFF3EA;color:var(--brand-dark);transform:translateY(-2px);}
.btn-onhero-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:46px;padding:0 22px;border-radius:12px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.42);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s ease,transform .2s ease;
}
.btn-onhero-ghost:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px);}

/* ============ sections ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0 88px;}
.section-head{max-width:800px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 13px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-top:16px;}
.section-sub{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;}

/* ============ steps ============ */
.steps{position:relative;}
.step{position:relative;padding-left:68px;padding-bottom:30px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:23px;top:52px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(31,122,109,.42),rgba(31,122,109,.06));
}
.step:last-child::before{display:none;}
.step-num{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:999px;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:0 10px 22px rgba(31,122,109,.28);border:3px solid #fff;
  z-index:2;
}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:22px 24px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.step-title{font-size:19px;font-weight:600;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.step-title .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.step-text{color:var(--ink-2);font-size:15.5px;margin-top:12px;line-height:1.85;}
.step-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:#F1F6F4;color:#3D4C49;font-size:12.5px;font-variant-numeric:tabular-nums;
}
.tag.is-ok{background:rgba(31,122,109,.1);color:var(--brand);}
.tag.is-warn{background:rgba(242,140,75,.14);color:#B45F22;}

/* ============ side cards ============ */
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:20px;
  padding:22px;box-shadow:var(--shadow);
}
.side-card h3{font-size:16.5px;font-weight:600;display:flex;align-items:center;gap:10px;}
.side-card h3 .mark{width:8px;height:8px;border-radius:3px;background:var(--brand);display:inline-block;}
.side-list{margin-top:16px;display:flex;flex-direction:column;gap:12px;}
.side-list li{position:relative;padding-left:22px;font-size:14.5px;color:var(--ink-2);line-height:1.7;}
.side-list li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%;
  background:rgba(31,122,109,.16);border:2px solid var(--brand);
}
.side-card.dark{background:var(--dark);border-color:transparent;color:#CFE3DE;}
.side-card.dark h3{color:#fff;}
.side-card.dark h3 .mark{background:var(--accent);}
.side-card.dark .side-list li{color:#A9C7C1;}
.side-card.dark .side-list li::before{background:rgba(242,140,75,.2);border-color:var(--accent);}
.side-link{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;font-size:14px;font-weight:600;color:var(--accent);
  transition:gap .2s ease,color .2s ease;
}
.side-card.dark .side-link{color:var(--gold);}
.side-link:hover{gap:12px;}
.side-figure{
  border-radius:20px;overflow:hidden;border:1px solid var(--line);background:#EDF2F0;
  box-shadow:var(--shadow);margin:0;
}
.side-figure img{width:100%;height:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s ease;}
.side-figure:hover img{transform:scale(1.03);}
.side-cta-text{font-size:14.5px;color:var(--ink-2);margin-top:12px;line-height:1.75;}

/* ============ compare table ============ */
.table-wrap{
  overflow-x:auto;background:var(--card);border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--shadow);
}
table.cmp{width:100%;border-collapse:collapse;min-width:760px;font-size:15px;}
table.cmp thead th{
  background:#EAF3F1;color:var(--brand-dark);font-weight:600;font-size:14px;
  text-align:left;padding:16px 20px;white-space:nowrap;
}
table.cmp thead th:first-child{border-top-left-radius:20px;}
table.cmp thead th:last-child{border-top-right-radius:20px;}
table.cmp tbody td{
  padding:16px 20px;border-top:1px solid var(--line);color:var(--ink-2);
  vertical-align:middle;line-height:1.7;
}
table.cmp tbody td:first-child{color:var(--ink);font-weight:600;}
table.cmp tbody tr{transition:background .2s ease;}
table.cmp tbody tr:hover{background:#F7FBFA;}
.level{display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;font-size:12.5px;white-space:nowrap;}
.level.mid{background:rgba(232,180,74,.18);color:#8A6414;}
.level.high{background:rgba(31,122,109,.12);color:var(--brand);}
.table-note{margin-top:16px;font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ guard strip ============ */
.guard-strip{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:28px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.guard-item{display:flex;gap:14px;align-items:flex-start;}
.guard-ico{
  width:44px;height:44px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.guard-item h4{font-size:15.5px;font-weight:600;}
.guard-item p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;}

/* ============ cta band ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:26px;
  background:linear-gradient(135deg,#1F7A6D 0%,#2E9C88 48%,#F28C4B 100%);
  color:#fff;padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 44px rgba(31,122,109,.26);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),rgba(255,255,255,0) 70%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h3{font-size:clamp(20px,2.4vw,26px);color:#fff;}
.cta-band p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.9);max-width:640px;line-height:1.8;}
.btn-contrast{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;
  height:48px;padding:0 26px;border-radius:12px;border:0;
  background:#fff;color:var(--brand-dark);font-weight:600;font-size:15.5px;
  box-shadow:0 12px 26px rgba(14,43,39,.22);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.btn-contrast:hover{background:#FFF3EA;color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 18px 34px rgba(14,43,39,.3);}
.btn-contrast:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(255,255,255,.6);}

/* ============ footer ============ */
.site-footer{background:var(--dark);color:#CFE3DE;padding:66px 0 0;margin-top:88px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);box-shadow:none;color:#7FD6C2;}
.footer-desc{color:#9FBCB6;font-size:14.5px;margin-top:16px;line-height:1.85;}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{color:#A9C7C1;font-size:14.5px;transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(3px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:52px;padding:22px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13.5px;color:#8FAFA9;
}

/* ============ responsive ============ */
@media (max-width:1199.98px){
  .nav-chips{gap:6px;}
  .chip{padding:0 13px;font-size:14px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .page-hero{padding:50px 0 46px;}
  .side-sticky{position:static;margin-top:8px;}
  .guard-strip{grid-template-columns:repeat(2,1fr);gap:22px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px;}
  .cta-band .btn-contrast{width:100%;}
  .site-footer{margin-top:64px;padding-top:52px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .header-inner{height:66px;}
  .brand{font-size:17px;}
  .step{padding-left:56px;padding-bottom:24px;}
  .step::before{left:20px;top:46px;}
  .step-num{width:42px;height:42px;font-size:15px;}
  .step-body{padding:18px;border-radius:18px;}
  .step-title{font-size:17px;}
  .side-card{padding:20px;border-radius:18px;}
  .table-wrap{border-radius:18px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .container-xl{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:clamp(27px,7.4vw,34px);}
  .hero-sub{font-size:15.5px;}
  .guard-strip{grid-template-columns:1fr;padding:22px;}
  .cta-band{padding:24px;border-radius:20px;}
  .hero-actions .btn-onhero,.hero-actions .btn-onhero-ghost{width:100%;}
  .badge-pill{font-size:12.5px;height:32px;padding:0 12px;}
}

/* roulang page: category4 */
:root{
  --brand:#1F7A6D;
  --brand-dark:#155F55;
  --brand-soft:#E7F2EF;
  --brand-2:#F28C4B;
  --brand-2-dark:#DA7433;
  --accent:#E8B44A;
  --bg:#F5F8F7;
  --ink:#14201E;
  --muted:#5B6B67;
  --line:#E2EBE8;
  --dark:#0E2B27;
  --dark-2:#123832;
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 10px 30px rgba(20,32,30,.08);
  --sh-2:0 18px 40px rgba(20,32,30,.14);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:600;line-height:1.3;margin:0;color:var(--ink);letter-spacing:-.2px}
h1{font-size:clamp(30px,4.2vw,52px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:clamp(19px,2vw,23px)}
p{margin:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,transform .2s ease}
a:hover{color:var(--brand-dark)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container-xl{max-width:1200px}
@media (min-width:1400px){.container-xl{max-width:1320px}}
.num{font-variant-numeric:tabular-nums}
.section{padding:var(--sec) 0}
.section-tight{padding:56px 0}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--brand);background:var(--brand-soft);
  border:1px solid rgba(31,122,109,.14);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.sec-head p{color:var(--muted);margin-top:14px;font-size:16.5px}
.text-muted-2{color:var(--muted)}

/* header */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(226,235,232,.9);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(20,32,30,.09)}
.header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:72px;padding:10px 12px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink);letter-spacing:-.3px;flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),#2E9C8B);
  color:#fff;box-shadow:0 6px 16px rgba(31,122,109,.28);
}
.brand-text{white-space:nowrap}
.nav-chips{
  align-items:center;gap:8px;flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;font-size:14.5px;font-weight:500;color:#41514D;
  background:transparent;border:1px solid transparent;white-space:nowrap;
  transition:all .22s ease;
}
.chip:hover{background:var(--brand-soft);color:var(--brand)}
.chip.is-active{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(31,122,109,.24)}
.chip.is-active:hover{color:#fff;background:var(--brand-dark)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  background:linear-gradient(135deg,var(--brand),#2E9C8B);color:#fff;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .22s ease;
}
.btn-main:hover{color:#fff;background:linear-gradient(135deg,var(--brand-dark),#23806F);transform:translateY(-2px);box-shadow:0 12px 26px rgba(31,122,109,.28)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  border:1px solid var(--brand);background:transparent;color:var(--brand);
  font-size:15px;font-weight:600;cursor:pointer;transition:all .22s ease;
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.btn-warm{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);border:1px solid transparent;
  background:linear-gradient(135deg,var(--brand-2),#F5A468);color:#3A1B08;
  font-size:15px;font-weight:700;transition:all .22s ease;
}
.btn-warm:hover{background:linear-gradient(135deg,var(--brand-2-dark),var(--brand-2));color:#2C1406;transform:translateY(-2px);box-shadow:0 14px 28px rgba(242,140,75,.32)}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.mobile-nav{padding:12px 0 20px;border-top:1px solid var(--line);background:#fff}
.mobile-chips{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.mobile-chips .chip{height:44px;justify-content:flex-start;border:1px solid var(--line);width:100%}

/* hero */
.hero-cat{
  position:relative;overflow:hidden;
  padding:64px 0 56px;
  background-image:linear-gradient(120deg,rgba(14,43,39,.9),rgba(20,32,30,.72) 55%,rgba(31,122,109,.68)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;
}
.hero-cat h1{color:#fff;max-width:900px}
.hero-cat .lead{color:rgba(255,255,255,.86);margin-top:18px;max-width:760px;font-size:17px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#fff;backdrop-filter:blur(4px);
}
.badge-pill b{font-size:15px;font-weight:700;color:#FFE4C4}
.search-panel{
  margin-top:34px;background:rgba(255,255,255,.97);border-radius:var(--r-lg);
  padding:16px;box-shadow:var(--sh-2);max-width:760px;
}
.search-panel form{display:flex;gap:10px;flex-wrap:wrap}
.search-panel .form-control{flex:1 1 260px;height:48px;border-radius:var(--r-sm);border:1px solid #D9E5E1;background:#fff}
.search-panel .hint{font-size:13px;color:var(--muted);margin-top:10px}
.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  font-size:13px;padding:5px 12px;border-radius:999px;background:var(--brand-soft);
  color:var(--brand);border:1px solid rgba(31,122,109,.14);
}

/* 卡片 */
.card-soft{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);height:100%;transition:transform .25s ease,box-shadow .25s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.step-num{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-size:16px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.card-soft h3{font-size:19px;margin-bottom:10px}
.card-soft p{color:var(--muted);font-size:15.5px}
.thumb{
  border-radius:var(--r-md);overflow:hidden;background:#EEF3F1;
  aspect-ratio:16/10;position:relative;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card-soft:hover .thumb img{transform:scale(1.03)}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r-md)!important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:0 6px 18px rgba(20,32,30,.05);
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 22px;box-shadow:none!important;position:relative;
  min-height:56px;line-height:1.5;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:center;transition:transform .25s ease;
}
.accordion-button:not(.collapsed){color:var(--brand-dark);background:#FBFFFE}
.accordion-button:not(.collapsed)::before{transform:scaleY(1)}
.accordion-button::after{
  width:20px;height:20px;background-size:20px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231F7A6D' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  transition:transform .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23155F55' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E")}
.accordion-body{padding:4px 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.8}
.accordion-body strong{color:var(--ink)}
.accordion-body ul{margin-top:10px;padding-left:20px;list-style:disc}
.accordion-body li{margin-bottom:6px}

/* 保障条 */
.guard-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  box-shadow:var(--sh-1);padding:8px;
}
.guard-item{
  padding:24px 22px;border-radius:var(--r-md);transition:background-color .22s ease;
}
.guard-item:hover{background:#F7FBFA}
.guard-ico{
  width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);margin-bottom:14px;
}
.guard-item h3{font-size:17px;margin-bottom:8px}
.guard-item p{font-size:14.5px;color:var(--muted)}
.guard-divider{border-color:var(--line);opacity:1;margin:0}

/* 表单 */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:32px;box-shadow:var(--sh-1);
}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{
  height:48px;border-radius:var(--r-sm);border:1px solid #D9E5E1;background:#FCFEFD;
  padding:0 16px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control{height:auto;min-height:120px;padding:12px 16px;line-height:1.7}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,122,109,.14);background:#fff;
}
.form-control::placeholder{color:#9AAAA5}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background-image:linear-gradient(135deg,rgba(31,122,109,.94),rgba(46,156,139,.88) 45%,rgba(242,140,75,.82)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:44px 40px;color:#fff;box-shadow:0 20px 46px rgba(14,43,39,.24);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:rgba(255,255,255,.88);margin-top:10px;max-width:620px}

/* footer */
.site-footer{background:var(--dark);color:#CFE3DE;padding:64px 0 0;margin-top:var(--sec)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2E9C8B,#1F7A6D);box-shadow:none}
.footer-desc{font-size:14.5px;line-height:1.8;color:#9DBAB3;max-width:360px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.6px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:#CFE3DE;transition:transform .2s ease,color .2s ease}
.footer-links a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8FADA6;
}

@media (max-width:1199.98px){
  :root{--sec:72px}
}
@media (max-width:991.98px){
  :root{--sec:60px}
  .hero-cat{padding:48px 0 44px}
  .header-inner{min-height:64px}
}
@media (max-width:767.98px){
  :root{--sec:46px}
  body{font-size:16px}
  .hero-cat{padding:38px 0 36px}
  .search-panel{padding:14px}
  .card-soft{padding:22px}
  .form-card{padding:22px}
  .cta-band{padding:32px 24px}
  .guard-item{padding:20px 16px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .hero-badges{gap:8px}
  .badge-pill{font-size:12px;padding:7px 12px}
  .btn-main,.btn-ghost,.btn-warm{width:100%}
}