/* roulang page: index */
:root{
  --c-brand:#0E8F6E;
  --c-brand-dark:#0A6B53;
  --c-brand-soft:#E6F4EF;
  --c-accent:#FF6B35;
  --c-accent-hover:#F05A22;
  --c-lime:#B6F24A;
  --c-ink:#101B17;
  --c-text:#2C3A34;
  --c-muted:#64756D;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-line:#E2E8E2;
  --c-warn:#D8483C;
  --c-ok:#0E8F6E;
  --sh-1:0 1px 2px rgba(16,27,23,.06);
  --sh-2:0 6px 20px rgba(16,27,23,.08);
  --sh-3:0 16px 40px rgba(16,27,23,.12);
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;--sp-8:80px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-brand-dark);text-decoration:underline}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
::selection{background:rgba(14,143,110,.16)}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-8) 0}
.section-soft{background:var(--c-brand-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:28px;font-weight:700;line-height:1.35;color:var(--c-ink);letter-spacing:-.01em}
.section-sub{font-size:13px;line-height:1.7;color:var(--c-muted);margin-top:8px;max-width:720px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;white-space:nowrap}
.link-more span{transition:transform .2s ease}
.link-more:hover span{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-brand-soft);color:var(--c-brand-dark);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-accent{background:rgba(255,107,53,.12);color:#C4400F}
.badge-line{background:transparent;border:1px solid var(--c-line);color:var(--c-muted)}
.meta-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);line-height:1.6}
.dot{width:4px;height:4px;border-radius:50%;background:var(--c-line);display:inline-block}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-md);font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 4px 12px rgba(255,107,53,.24)}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,107,53,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:var(--c-surface);border-color:rgba(14,143,110,.45);color:var(--c-brand-dark)}
.btn-outline:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:var(--c-surface);font-size:13px;color:var(--c-muted)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 0}
.nav-card{
  display:flex;align-items:center;gap:20px;
  min-height:72px;padding:12px 16px 12px 20px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand:hover{text-decoration:none}
.logo-mark{
  width:30px;height:30px;border-radius:var(--r-sm);
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-dark));
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:16px;height:16px;fill:none;stroke:#EAFBF4;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--c-muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:8px;flex:1 1 auto}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;border-radius:var(--r-md);
  background:var(--c-brand-soft);color:var(--c-ink);
  font-size:14px;font-weight:600;transition:all .2s ease;
}
.nav-link:hover{background:var(--c-surface);color:var(--c-brand);border-color:rgba(14,143,110,.35);box-shadow:var(--sh-1);text-decoration:none}
.nav-link.is-active{background:var(--c-brand);color:#fff}
.nav-link.is-active:hover{background:var(--c-brand-dark);color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-actions .btn{height:42px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{display:none}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 80px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(560px 420px at 88% 6%, rgba(14,143,110,.10), rgba(14,143,110,0) 70%),
    radial-gradient(rgba(16,27,23,.05) 1px, transparent 1px);
  background-size:100% 100%, 8px 8px;
  opacity:.9;
}
.hero-grid{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-copy{max-width:820px}
.hero h1{font-size:40px;font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--c-ink);margin-top:18px}
.hero h1 em{font-style:normal;color:var(--c-brand)}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--c-text);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-stats{display:flex;align-items:center;gap:28px;margin-top:38px}
.hero-stat{display:flex;flex-direction:column;gap:2px;padding-right:28px;border-right:1px solid var(--c-line)}
.hero-stat:last-child{border-right:0;padding-right:0}
.hero-stat strong{font-size:26px;font-weight:700;color:var(--c-brand);line-height:1.3}
.hero-stat span{font-size:13px;color:var(--c-muted)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-3)}
.float-card{
  position:absolute;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:12px 14px;min-width:150px;
}
.float-card strong{display:block;font-size:13px;color:var(--c-ink);font-weight:700}
.float-card span{font-size:12px;color:var(--c-muted)}
.float-card-a{top:22px;left:-24px}
.float-card-b{bottom:26px;right:-20px}

/* ============ Bento ============ */
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4)}
.card-img{overflow:hidden;background:var(--c-brand-soft)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.card:hover .card-img img{transform:scale(1.04)}
.bento-main{grid-column:span 6;grid-row:span 2;display:flex}
.bento-main .card-img{flex:0 0 45%}
.bento-main .bento-body{padding:28px;display:flex;flex-direction:column;gap:14px}
.bento-main h3{font-size:21px;font-weight:700;line-height:1.45;color:var(--c-ink)}
.bento-main p{font-size:14px;line-height:1.75;color:var(--c-text)}
.bento-body .meta-row{margin-top:auto}
.bento-card{grid-column:span 3;display:flex;flex-direction:column}
.bento-card .card-img{aspect-ratio:16/10}
.bento-card .bento-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.bento-card h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.bento-card p{font-size:13px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-brand);margin-top:auto}
.arrow-link:hover{text-decoration:none;color:var(--c-brand-dark)}
.arrow-link span{transition:transform .2s ease}
.arrow-link:hover span{transform:translateX(3px)}

/* ============ 保障条 ============ */
.guarantee{
  background:linear-gradient(120deg,var(--c-brand-dark),var(--c-ink));
  border-radius:var(--r-lg);padding:28px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border:1px solid rgba(255,255,255,.12);
}
.guarantee-item{display:flex;gap:14px;padding-right:24px;border-right:1px solid rgba(255,255,255,.12)}
.guarantee-item:last-child{border-right:0;padding-right:0}
.guarantee-item svg{width:22px;height:22px;flex:0 0 auto;stroke:var(--c-lime);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-top:3px}
.guarantee-item strong{display:block;font-size:14px;color:#fff;font-weight:700;line-height:1.5}
.guarantee-item span{display:block;font-size:13px;color:rgba(255,255,255,.68);line-height:1.6;margin-top:4px}

/* ============ 最新信息 ============ */
.news-lead{
  display:grid;grid-template-columns:40% 60%;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4)}
.news-lead-media{overflow:hidden;background:var(--c-brand-soft)}
.news-lead-media img{width:100%;height:100%;min-height:260px;object-fit:cover;transition:transform .28s ease}
.news-lead:hover .news-lead-media img{transform:scale(1.04)}
.news-lead-body{padding:32px;display:flex;flex-direction:column;gap:14px}
.news-lead-body h3{font-size:22px;font-weight:700;line-height:1.45}
.news-lead-body h3 a{color:var(--c-ink)}
.news-lead-body h3 a:hover{color:var(--c-brand);text-decoration:none}
.news-lead-body p{font-size:14px;line-height:1.8;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-lead-body .meta-row{margin-top:auto}
.news-list{margin-top:28px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden}
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:20px 28px;border-bottom:1px dashed var(--c-line);transition:background-color .2s ease;
}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:var(--c-brand-soft)}
.news-item-main{flex:1 1 auto;min-width:0}
.news-item-main h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--c-ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-main h3 a{color:var(--c-ink)}
.news-item-main h3 a:hover{color:var(--c-brand);text-decoration:none}
.news-item-main p{margin-top:8px;font-size:13px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex:0 0 auto}
.news-item-side time{font-size:13px;color:var(--c-muted)}
.news-empty{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.news-empty svg{width:40px;height:40px;stroke:var(--c-brand);fill:none;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round}
.news-empty p{font-size:15px;color:var(--c-muted)}

/* ============ 评价 ============ */
.reviews-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.reviews-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:12px;scrollbar-width:none;
}
.reviews-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.review-top{display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--c-brand-soft);color:var(--c-brand-dark);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px}
.review-name{font-size:14px;font-weight:700;color:var(--c-ink);line-height:1.4}
.review-src{font-size:12px;color:var(--c-muted)}
.stars{margin:16px 0 12px;color:var(--c-accent);font-size:14px;letter-spacing:2px}
.review-text{font-size:14px;line-height:1.8;color:var(--c-text);height:75px;overflow:hidden}
.review-controls{display:flex;gap:8px}
.ctrl-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:var(--c-surface);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink);transition:all .2s ease;font-size:15px;
}
.ctrl-btn:hover{border-color:var(--c-brand);color:var(--c-brand);transform:translateY(-1px)}
.progress{margin-top:20px;height:6px;border-radius:var(--r-pill);background:rgba(14,143,110,.16);overflow:hidden}
.progress-bar{height:100%;width:33%;border-radius:var(--r-pill);background:var(--c-brand);transition:width .2s ease}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:rgba(14,143,110,.45);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.faq-q .icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-q .icon::before,.faq-q .icon::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform .25s ease}
.faq-q .icon::before{top:8px;left:0;width:18px;height:2px}
.faq-q .icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-q .icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{padding:0 22px 22px;border-left:3px solid var(--c-brand);margin-left:22px;padding-left:18px}
.faq-a p{font-size:15px;line-height:1.9;color:var(--c-text)}

/* ============ CTA 表单 ============ */
.cta-band{
  position:relative;background:var(--c-ink);border-radius:var(--r-xl);
  padding:48px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;top:-120px;left:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,110,.24),rgba(14,143,110,0) 70%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.cta-grid h2{font-size:28px;font-weight:700;line-height:1.4;color:#fff}
.cta-grid .cta-sub{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72)}
.cta-points{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.86)}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;stroke:var(--c-lime);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-top:4px}
.form-card{background:var(--c-surface);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-3)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--c-ink)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);font-size:14px;color:var(--c-text);transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(14,143,110,.2)}
.field.is-error input,.field.is-error select{border-color:var(--c-warn)}
.field-hint{font-size:12px;color:var(--c-warn);min-height:16px;line-height:1.4}
.form-note{margin-top:14px;font-size:12px;color:var(--c-muted);line-height:1.7}
.form-success{margin-top:14px;font-size:13px;color:var(--c-ok);font-weight:600;display:none}
.form-success.is-visible{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C9D6CF;margin-top:80px;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:700}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .logo-mark{background:linear-gradient(140deg,var(--c-brand),var(--c-lime))}
.footer-brand .logo-mark svg{stroke:#08150F}
.footer-about{font-size:14px;line-height:1.9;color:rgba(201,214,207,.82);max-width:320px}
.social-row{display:flex;gap:10px;margin-top:20px}
.social-btn{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.16);display:flex;align-items:center;justify-content:center;color:#C9D6CF;transition:all .2s ease}
.social-btn:hover{border-color:var(--c-lime);color:var(--c-lime);text-decoration:none}
.social-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{line-height:2.2;font-size:14px}
.footer-links a{color:#C9D6CF}
.footer-links a:hover{color:var(--c-lime);text-decoration:underline}
.footer-contact li{font-size:14px;line-height:2.1;color:rgba(201,214,207,.86)}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(201,214,207,.72);
}
.footer-bottom a{color:rgba(201,214,207,.82)}
.footer-bottom a:hover{color:var(--c-lime)}

/* ============ 响应式 ============ */
@media (max-width:1263px){
  .container{padding:0 24px}
  .hero-grid{grid-template-columns:6fr 6fr;gap:36px}
  .bento-main{grid-column:span 12;grid-row:auto}
  .bento-main .card-img{flex:0 0 42%}
  .bento-card{grid-column:span 6}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:40px}
  .news-lead{grid-template-columns:45% 55%}
}
@media (max-width:991px){
  .section{padding:56px 0}
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-card{justify-content:space-between}
  .mobile-panel{
    display:none;margin-top:12px;background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:16px;
  }
  .mobile-panel.is-open{display:block}
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
  .mobile-grid .nav-link{background:var(--c-brand-soft);justify-content:center;padding:14px 12px}
  .mobile-panel .btn{margin-top:14px}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .float-card{display:none}
  .guarantee{grid-template-columns:1fr 1fr;gap:20px;padding:24px}
  .guarantee-item{border-right:0;padding-right:0;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.12)}
  .guarantee-item:nth-last-child(-n+2){border-bottom:0;padding-bottom:0}
  .review-card{flex:0 0 calc((100% - 24px)/2)}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .section{padding:40px 0}
  .hero h1{font-size:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-actions .btn{width:100%;min-height:48px}
  .hero-stats{gap:0;justify-content:space-between}
  .hero-stat{padding-right:0;border-right:0;flex:1;text-align:center}
  .hero-stat strong{font-size:22px}
  .bento-grid{gap:16px}
  .bento-main{flex-direction:column}
  .bento-main .card-img{flex:0 0 auto;aspect-ratio:16/9}
  .bento-card{grid-column:span 12}
  .bento-card .card-img{aspect-ratio:16/9}
  .news-lead{grid-template-columns:1fr}
  .news-lead-media img{min-height:200px}
  .news-lead-body{padding:22px}
  .news-item{flex-direction:column;align-items:flex-start;gap:12px;padding:18px}
  .news-item-side{flex-direction:row;align-items:center;gap:12px}
  .review-card{flex:0 0 86%}
  .cta-band{padding:28px 20px;border-radius:var(--r-lg)}
  .cta-grid h2{font-size:22px}
  .form-card{padding:20px}
  .form-grid{grid-template-columns:1fr}
  .site-footer{margin-top:56px;padding:48px 0 20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  body{font-size:15px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .mobile-grid{grid-template-columns:1fr}
  .hero-sub{font-size:15px}
  .guarantee{grid-template-columns:1fr}
  .guarantee-item{border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:14px}
  .guarantee-item:last-child{border-bottom:0;padding-bottom:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-stat span{font-size:12px}
}

/* roulang page: article */
:root{
  --c-brand:#0E8F6E;
  --c-brand-dark:#0A6B53;
  --c-brand-soft:#E6F4EF;
  --c-accent:#FF6B35;
  --c-accent-hover:#F05A22;
  --c-lime:#B6F24A;
  --c-ink:#101B17;
  --c-text:#2C3A34;
  --c-muted:#64756D;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-line:#E2E8E2;
  --c-warn:#D8483C;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,27,23,.06);
  --sh-2:0 6px 20px rgba(16,27,23,.08);
  --sh-3:0 16px 40px rgba(16,27,23,.12);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;}
h1{font-size:40px;line-height:1.28;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);}
h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--c-ink);}
h3{font-size:19px;line-height:1.5;font-weight:600;color:var(--c-ink);}
ul,ol{padding-left:1.2em;}
li{line-height:1.85;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-brand-dark);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-brand);outline-offset:2px;
}
button{font-family:inherit;}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:80px 0;}
.section-sm{padding:56px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-brand-soft);color:var(--c-brand);
  font-size:13px;font-weight:600;line-height:1.6;
}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head p{font-size:13px;color:var(--c-muted);margin-top:8px;}
.text-link{font-size:15px;font-weight:600;color:var(--c-brand);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--c-brand-dark);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink);}
.btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand);text-decoration:none;transform:translateY(-1px);}
.btn-solid{background:var(--c-brand);color:#fff;}
.btn-solid:hover{background:var(--c-brand-dark);color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:16px 0 8px;}
.nav-card{
  display:flex;align-items:center;gap:24px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:0 20px;height:72px;transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled .nav-card{box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.logo-mark{
  width:36px;height:36px;border-radius:var(--r-sm);
  background:var(--c-brand);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;}
.brand-sub{font-size:12px;color:var(--c-muted);}
.nav-links{display:flex;align-items:center;gap:8px;flex:1 1 auto;}
.nav-item{
  padding:8px 14px;border-radius:var(--r-md);
  background:var(--c-brand-soft);color:var(--c-ink);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-item:hover{background:#fff;color:var(--c-brand);box-shadow:inset 0 0 0 1px var(--c-line);text-decoration:none;}
.nav-item.is-active{background:var(--c-brand);color:#fff;}
.nav-item.is-active:hover{color:#fff;box-shadow:none;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{display:none;}
.mobile-mask{display:none;}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{padding:20px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:13px;color:var(--c-muted);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#B7C4BD;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .current{color:var(--c-muted);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.article-hero{padding:24px 0 40px;}
.article-hero-inner{max-width:860px;}
.article-hero h1{margin:16px 0 18px;font-size:38px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C4D0C9;}
.article-lead{
  margin-top:22px;padding:18px 20px;border-left:3px solid var(--c-brand);
  background:var(--c-brand-soft);border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:14px;line-height:1.8;color:var(--c-text);
}

/* ============ 布局 ============ */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;padding-bottom:80px;}
.main-col{min-width:0;}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4);}
.side-card{padding:22px;margin-bottom:20px;}
.side-card:hover{transform:none;}
.side-title{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px;}
.toc-list li{margin-bottom:10px;}
.toc-list a{color:var(--c-text);display:block;line-height:1.6;}
.toc-list a:hover{color:var(--c-brand);}
.rec-list{list-style:none;margin:0;padding:0;}
.rec-list li{padding:12px 0;border-bottom:1px dashed var(--c-line);}
.rec-list li:last-child{border-bottom:0;padding-bottom:0;}
.rec-list a{font-size:14px;color:var(--c-text);font-weight:600;line-height:1.65;display:block;}
.rec-list a:hover{color:var(--c-brand);}
.rec-list .rec-meta{display:block;font-size:12px;color:var(--c-muted);margin-top:4px;font-weight:400;}
.side-cta{background:var(--c-brand-dark);border-radius:var(--r-lg);padding:24px;color:#fff;}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:8px;}
.side-cta p{font-size:13px;color:rgba(255,255,255,.78);line-height:1.75;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ============ 正文排版 ============ */
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:44px 48px;font-size:16px;line-height:1.85;color:var(--c-text);
}
.article-body > *{max-width:820px;}
.article-body h2{
  font-size:26px;margin:44px 0 16px;padding-left:14px;border-left:4px solid var(--c-brand);
  line-height:1.4;
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:19px;margin:32px 0 12px;}
.article-body p{margin-bottom:1.35em;}
.article-body ul,.article-body ol{margin:0 0 1.35em;padding-left:1.4em;}
.article-body li{margin-bottom:8px;}
.article-body a{font-weight:600;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--c-brand);
  background:var(--c-brand-soft);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text);font-size:15px;
}
.article-body img{border-radius:var(--r-md);margin:26px 0;width:100%;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-body th{background:var(--c-brand-soft);color:var(--c-ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FAFCFA;}
.article-body pre{
  background:var(--c-ink);color:#DCEAE3;padding:20px;border-radius:var(--r-md);
  overflow-x:auto;font-size:13.5px;line-height:1.7;margin:26px 0;
}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;}
.article-body p code,.article-body li code{background:var(--c-brand-soft);color:var(--c-brand-dark);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.tag{
  padding:6px 14px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;font-size:13px;color:var(--c-muted);
}
.tag:hover{border-color:var(--c-brand);color:var(--c-brand);text-decoration:none;}

/* ============ 空态 ============ */
.empty-state{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:56px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:var(--r-md);
  background:var(--c-brand-soft);display:flex;align-items:center;justify-content:center;
}
.empty-state .empty-icon svg{width:26px;height:26px;fill:none;stroke:var(--c-brand);stroke-width:2;stroke-linecap:round;}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:20px;}
.skeleton{max-width:420px;margin:0 auto 22px;}
.skeleton span{display:block;height:12px;border-radius:var(--r-pill);background:#EDF2EE;margin-bottom:10px;}
.skeleton span:nth-child(2){width:82%;}
.skeleton span:nth-child(3){width:64%;}

/* ============ 翻页卡 ============ */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px;}
.pager-card{
  display:block;padding:22px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pager-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4);text-decoration:none;}
.pager-card .pager-label{font-size:12px;color:var(--c-muted);display:block;margin-bottom:8px;}
.pager-card strong{font-size:16px;color:var(--c-ink);font-weight:600;line-height:1.5;}
.pager-card span.arrow{display:block;margin-top:10px;color:var(--c-brand);font-size:14px;font-weight:600;}

/* ============ 相关推荐 ============ */
.related-section{padding:8px 0 80px;}
.related-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:24px;}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4);text-decoration:none;}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-soft);}
.related-card.is-lead .related-thumb{aspect-ratio:16/9;}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease;}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.related-body h3{font-size:17px;line-height:1.5;}
.related-card.is-lead .related-body h3{font-size:20px;}
.related-body p{font-size:14px;color:var(--c-text);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-meta{font-size:13px;color:var(--c-muted);margin-top:auto;}

/* ============ CTA ============ */
.cta-section{padding:0 0 88px;}
.cta-block{
  position:relative;overflow:hidden;background:var(--c-ink);border-radius:var(--r-xl);
  padding:48px;display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center;
}
.cta-block::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,110,.35),transparent 70%);
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.8;margin-bottom:20px;}
.cta-points{list-style:none;padding:0;margin:0;}
.cta-points li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.86);font-size:14px;margin-bottom:10px;}
.cta-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;fill:none;stroke:var(--c-lime);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.form-card{position:relative;z-index:1;background:#fff;border-radius:var(--r-lg);padding:26px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--c-ink);}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border-radius:var(--r-md);border:1px solid var(--c-line);
  background:#fff;font-size:14px;color:var(--c-text);font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(14,143,110,.2);
}
.form-card .btn{width:100%;margin-top:16px;min-height:48px;}
.form-hint{font-size:12px;color:var(--c-muted);margin-top:10px;text-align:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C9D6CF;padding:64px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-about{font-size:14px;line-height:1.8;color:#A9BAB2;max-width:340px;margin-bottom:18px;}
.social-row{display:flex;gap:10px;}
.social-btn{
  width:38px;height:38px;border-radius:var(--r-md);border:1px solid rgba(255,255,255,.16);
  display:inline-flex;align-items:center;justify-content:center;transition:border-color .2s ease,background-color .2s ease;
}
.social-btn svg{width:18px;height:18px;fill:none;stroke:#C9D6CF;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.social-btn:hover{border-color:var(--c-lime);background:rgba(182,242,74,.08);text-decoration:none;}
.social-btn:hover svg{stroke:var(--c-lime);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;}
.footer-links li,.footer-contact li{font-size:14px;line-height:2.2;color:#C9D6CF;}
.footer-links a{color:#C9D6CF;}
.footer-links a:hover{color:var(--c-lime);text-decoration:underline;text-underline-offset:3px;}
.footer-contact strong{color:#fff;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA29A;
}

/* ============ 响应式 ============ */
@media (max-width:1263px){
  .layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .article-body{padding:36px 32px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .related-card.is-lead{grid-column:1 / -1;}
}
@media (max-width:991px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .layout{grid-template-columns:1fr;gap:28px;padding-bottom:56px;}
  .side-card{margin-bottom:16px;}
  .article-hero h1{font-size:32px;}
  .cta-block{grid-template-columns:1fr;padding:36px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-card{gap:16px;justify-content:space-between;}
  .nav-actions .btn-ghost{display:none;}
  .mobile-panel{
    display:none;margin-top:12px;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:16px;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .m-item{
    padding:12px 14px;border-radius:var(--r-md);background:var(--c-brand-soft);
    color:var(--c-ink);font-size:14px;font-weight:600;
  }
  .m-item:hover{background:#fff;color:var(--c-brand);box-shadow:inset 0 0 0 1px var(--c-line);text-decoration:none;}
  .mobile-panel .btn{width:100%;margin-top:12px;min-height:48px;}
  .mobile-mask{display:none;position:fixed;inset:0;background:rgba(16,27,23,.4);z-index:50;}
  .mobile-mask.is-open{display:block;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:40px 0;}
  h1,.article-hero h1{font-size:28px;}
  h2{font-size:22px;}
  .article-body{padding:24px 20px;font-size:15.5px;}
  .article-body h2{font-size:21px;margin:32px 0 12px;}
  .pager{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .related-card.is-lead .related-thumb{aspect-ratio:16/10;}
  .form-grid{grid-template-columns:1fr;}
  .cta-block{padding:26px 20px;border-radius:var(--r-lg);}
  .cta-copy h2{font-size:22px;}
  .nav-card{height:auto;padding:12px 16px;}
  .brand-sub{display:none;}
  .nav-actions .btn-primary{padding:0 16px;min-height:42px;}
  .breadcrumb .current{max-width:200px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:479px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-meta{font-size:12px;}
  .btn{font-size:14px;}
}

/* roulang page: category1 */
:root{
  --c-brand:#0E8F6E;
  --c-brand-dark:#0A6B53;
  --c-brand-soft:#E6F4EF;
  --c-accent:#FF6B35;
  --c-accent-hover:#F05A22;
  --c-lime:#B6F24A;
  --c-ink:#101B17;
  --c-text:#2C3A34;
  --c-muted:#64756D;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-line:#E2E8E2;
  --c-warn:#D8483C;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,27,23,.06);
  --sh-2:0 6px 20px rgba(16,27,23,.08);
  --sh-3:0 16px 40px rgba(16,27,23,.12);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.35}
h1{font-size:40px;line-height:1.28;letter-spacing:-.01em}
h2{font-size:28px}
h3{font-size:19px;font-weight:600;line-height:1.5}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--c-brand-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:64px 0}
.section-tight{padding:40px 0}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;text-decoration:none;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,53,.24)}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;box-shadow:0 10px 22px rgba(255,107,53,.3)}
.btn-brand{background:var(--c-brand);color:#fff}
.btn-brand:hover{background:var(--c-brand-dark);color:#fff}
.btn-outline{background:transparent;color:var(--c-brand);border-color:rgba(14,143,110,.45)}
.btn-outline:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);border-color:var(--c-brand)}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);border-color:rgba(14,143,110,.35)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--c-brand-soft);color:var(--c-brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.02em;line-height:1.6;
}
.badge-accent{background:rgba(255,107,53,.12);color:#C2420F}
.tag{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;border:1px solid var(--c-line);
  background:var(--c-surface);color:var(--c-muted);font-size:12px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px 0;
  background:rgba(246,248,245,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-card{
  display:flex;align-items:center;gap:20px;
  height:72px;padding:0 18px 0 20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck .nav-card{box-shadow:var(--sh-2);border-color:rgba(14,143,110,.18)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--c-ink);text-decoration:none}
.logo-mark{
  width:28px;height:28px;border-radius:var(--r-sm);
  background:var(--c-brand);display:grid;place-items:center;flex-shrink:0;
}
.logo-mark svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-link{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:var(--r-md);
  background:var(--c-brand-soft);color:var(--c-ink);
  font-size:14px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.nav-link:hover{background:var(--c-surface);color:var(--c-brand);border-color:rgba(14,143,110,.35);text-decoration:none}
.nav-link.is-active{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
.nav-link.is-active:hover{background:var(--c-brand-dark);color:#fff}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;margin-left:auto;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:var(--c-ink);stroke-width:2;stroke-linecap:round}
.nav-drawer{
  display:none;margin-top:12px;padding:16px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-3);
}
.nav-drawer.is-open{display:block}
.nav-drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.nav-drawer .nav-link{justify-content:center;padding:12px 10px}
.nav-overlay{
  position:fixed;inset:0;background:rgba(16,27,23,.4);
  opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:70;
}
.nav-overlay.is-open{opacity:1;pointer-events:auto}

/* ============ 面包屑 ============ */
.breadcrumb-wrap{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--c-line)}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-brand)}
.breadcrumb [aria-current="page"]{color:var(--c-muted)}

/* ============ 顶部说明卡 ============ */
.page-intro{padding:28px 0 0}
.intro-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:36px;align-items:center;
  padding:32px 36px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-1);
}
.intro-card::after{
  content:"";position:absolute;right:-90px;top:-100px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,110,.14),rgba(14,143,110,0) 70%);
  pointer-events:none;
}
.intro-left{position:relative;z-index:1}
.intro-left h1{margin:14px 0 0;font-size:36px}
.intro-left .intro-sub{margin-top:10px;font-size:14px;color:var(--c-muted);line-height:1.75}
.intro-right{position:relative;z-index:1;display:flex;flex-direction:column;gap:16px}
.intro-right p{font-size:15px;line-height:1.85;color:var(--c-text);margin:0}
.intro-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 主区布局 ============ */
.layout{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:112px}
.side-card{
  padding:22px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.side-title{
  font-size:14px;font-weight:700;color:var(--c-ink);
  letter-spacing:.04em;margin-bottom:14px;
}
.side-list{display:flex;flex-direction:column;gap:8px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 14px;border-radius:var(--r-md);
  background:var(--c-bg);color:var(--c-ink);font-size:14px;font-weight:600;
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.side-list a:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);border-color:rgba(14,143,110,.28);text-decoration:none}
.side-list a.is-current{background:var(--c-brand);color:#fff}
.side-list a.is-current:hover{background:var(--c-brand-dark);color:#fff;border-color:var(--c-brand-dark)}
.side-list a svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.rhythm{display:flex;flex-direction:column;gap:14px}
.rhythm-item{display:flex;align-items:baseline;gap:10px}
.rhythm-num{font-size:22px;font-weight:700;color:var(--c-brand);letter-spacing:-.02em}
.rhythm-label{font-size:13px;color:var(--c-muted);line-height:1.6}
.side-note{font-size:13px;color:var(--c-muted);line-height:1.8;margin:0}

/* ============ 内容区 ============ */
.feed-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:24px;
}
.feed-head h2{font-size:26px}
.feed-head .feed-desc{margin-top:8px;font-size:13px;color:var(--c-muted)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600}
.link-more svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.link-more:hover svg{transform:translateX(3px)}
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-soft)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 22px;flex:1}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5}
.card p{font-size:14px;line-height:1.75;color:var(--c-text);margin:0}
.card .card-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:auto;padding-top:6px;font-size:13px;color:var(--c-muted);
}
.dot-sep{width:4px;height:4px;border-radius:50%;background:var(--c-line)}

/* ============ 保障条 ============ */
.assure{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  padding:28px 32px;border-radius:var(--r-lg);
  background:linear-gradient(115deg,var(--c-brand-dark),var(--c-ink));
  color:#fff;
}
.assure-item{padding:0 22px;border-left:1px solid rgba(255,255,255,.12)}
.assure-item:first-child{border-left:none;padding-left:0}
.assure-item:last-child{padding-right:0}
.assure-icon{width:22px;height:22px;fill:none;stroke:var(--c-lime);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;margin-bottom:10px}
.assure-item h3{color:#fff;font-size:14px;font-weight:700;margin-bottom:6px}
.assure-item p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.72);margin:0}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-items:start}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(14,143,110,.4);box-shadow:var(--sh-1)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 20px;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  min-height:56px;
}
.faq-q:hover{color:var(--c-brand-dark)}
.faq-sign{
  position:relative;width:18px;height:18px;flex-shrink:0;
  transition:transform .25s ease;
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px;transition:opacity .25s ease}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{
  display:none;padding:0 20px 20px;border-left:3px solid var(--c-brand);
  font-size:15px;line-height:1.9;color:var(--c-text);
}
.faq-item.is-open .faq-a{display:block}
.faq-a p{margin:0}

/* ============ 底部 CTA ============ */
.cta-block{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:40px;align-items:center;
  padding:48px;border-radius:var(--r-xl);
  background:var(--c-ink);color:#fff;
}
.cta-block::after{
  content:"";position:absolute;left:-120px;bottom:-140px;
  width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,110,.32),rgba(14,143,110,0) 70%);
  pointer-events:none;
}
.cta-left{position:relative;z-index:1}
.cta-left h2{color:#fff;font-size:28px;margin-bottom:14px}
.cta-left .cta-sub{font-size:15px;line-height:1.85;color:rgba(255,255,255,.76);margin-bottom:20px}
.cta-points{display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.86);line-height:1.7}
.cta-points svg{width:16px;height:16px;flex-shrink:0;margin-top:5px;fill:none;stroke:var(--c-lime);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.form-card{
  position:relative;z-index:1;
  background:var(--c-surface);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-3);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;font-weight:600;color:var(--c-muted)}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);color:var(--c-ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:88px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(14,143,110,.2);
}
.field .err{display:none;font-size:12px;color:var(--c-warn)}
.field.has-error input,.field.has-error select{border-color:var(--c-warn)}
.field.has-error .err{display:block}
.form-tip{margin-top:10px;font-size:13px;color:var(--c-muted);line-height:1.7}
.form-msg{display:none;margin-top:12px;padding:10px 14px;border-radius:var(--r-md);background:var(--c-brand-soft);color:var(--c-brand-dark);font-size:14px}
.form-msg.is-show{display:block}

/* ============ 页脚 ============ */
.site-footer{margin-top:80px;background:var(--c-ink);color:#C9D6CF;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-name{color:#fff}
.footer-about{font-size:14px;line-height:1.85;color:#9FB2A9;margin:0 0 18px;max-width:340px}
.social-row{display:flex;gap:10px}
.social-btn{
  width:36px;height:36px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.social-btn svg{width:16px;height:16px;fill:none;stroke:#C9D6CF;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.social-btn:hover{background:rgba(182,242,74,.12);border-color:rgba(182,242,74,.5);transform:translateY(-2px);text-decoration:none}
.social-btn:hover svg{stroke:var(--c-lime)}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{line-height:2.2}
.footer-links a{font-size:14px;color:#C9D6CF}
.footer-links a:hover{color:var(--c-lime);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{font-size:14px;line-height:2.1;color:#9FB2A9}
.footer-contact strong{color:#C9D6CF;font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8A9C93;
}

/* ============ 响应式 ============ */
@media (max-width:1263px){
  .container{padding:0 24px}
  h1{font-size:34px}
  .intro-left h1{font-size:32px}
  .layout{grid-template-columns:270px minmax(0,1fr);gap:24px}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:56px 0}
  .intro-card{grid-template-columns:1fr;gap:22px;padding:28px}
  .intro-left h1{font-size:30px}
  .layout{grid-template-columns:1fr}
  .side-col{position:static}
  .assure{grid-template-columns:1fr 1fr;gap:24px 0}
  .assure-item:nth-child(odd){border-left:none;padding-left:0}
  .assure-item:nth-child(even){border-left:1px solid rgba(255,255,255,.12)}
  .cta-block{grid-template-columns:1fr;gap:28px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  h1{font-size:28px}
  h2{font-size:22px}
  .container{padding:0 16px}
  .section{padding:40px 0}
  .site-header{padding:10px 0}
  .nav-card{height:64px;padding:0 14px;gap:12px}
  .brand-name{font-size:15px}
  .intro-left h1{font-size:26px}
  .card-grid{grid-template-columns:1fr;gap:18px}
  .faq-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr;gap:0}
  .btn{min-height:48px}
  .intro-actions .btn{width:100%}
  .assure{padding:24px 20px}
  .cta-block{padding:26px 20px;border-radius:var(--r-lg)}
  .cta-left h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px;margin-top:34px}
}
@media (max-width:479px){
  body{font-size:15px}
  h1{font-size:24px}
  .intro-card{padding:22px 18px}
  .side-card{padding:18px}
  .assure{grid-template-columns:1fr;gap:20px}
  .assure-item{border-left:none;padding:0}
  .nav-drawer-grid{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --c-brand:#0E8F6E;
  --c-brand-dark:#0A6B53;
  --c-brand-soft:#E6F4EF;
  --c-accent:#FF6B35;
  --c-accent-hover:#F05A22;
  --c-lime:#B6F24A;
  --c-ink:#101B17;
  --c-text:#2C3A34;
  --c-muted:#64756D;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-line:#E2E8E2;
  --c-warn:#D8483C;
  --c-ok:#0E8F6E;
  --sh-1:0 1px 2px rgba(16,27,23,.06);
  --sh-2:0 6px 20px rgba(16,27,23,.08);
  --sh-3:0 16px 40px rgba(16,27,23,.12);
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--c-brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
a:hover{color:var(--c-brand-dark);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-brand);
  outline-offset:2px;
}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text);}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}
.section{padding:80px 0;}
.section--tight{padding:56px 0;}
.section--soft{background:var(--c-brand-soft);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{
  font-size:28px;
  font-weight:700;
  line-height:1.35;
  color:var(--c-ink);
  letter-spacing:-.01em;
}
.section-sub{font-size:13px;color:var(--c-muted);margin-top:8px;}
.text-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.text-link svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}

/* 头部与导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--c-bg);
  padding:16px 0 8px;
}
.nav-card{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
  padding:12px 20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease;
}
.nav-card.is-scrolled{box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:24px;height:24px;
  border-radius:var(--r-sm);
  background:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.logo-mark svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{display:flex;flex-direction:column;}
.brand-name{font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.3;letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--c-muted);line-height:1.4;}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:8px;
  flex-wrap:wrap;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  border-radius:var(--r-md);
  background:var(--c-brand-soft);
  color:var(--c-ink);
  font-size:14px;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
}
.nav-link:hover{
  background:var(--c-surface);
  color:var(--c-brand);
  border-color:var(--c-line);
  text-decoration:none;
}
.nav-link.is-active{
  background:var(--c-brand);
  color:#fff;
  border-color:var(--c-brand);
}
.nav-link.is-active:hover{background:var(--c-brand-dark);color:#fff;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  align-items:center;justify-content:center;
  margin-left:auto;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-ink);position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  padding:0 20px;
  height:44px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,53,.28);}
.btn-primary:hover{background:var(--c-accent-hover);color:#fff;box-shadow:0 10px 22px rgba(255,107,53,.32);}
.btn-outline{background:transparent;color:var(--c-brand);border-color:var(--c-brand);}
.btn-outline:hover{background:var(--c-brand-soft);color:var(--c-brand-dark);}
.btn-ghost{background:var(--c-brand-soft);color:var(--c-ink);}
.btn-ghost:hover{background:#fff;color:var(--c-brand);border-color:var(--c-line);}
.btn-light-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-light-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-block{width:100%;}

/* 徽章 */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--c-brand-soft);
  color:var(--c-brand-dark);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
}
.badge-accent{background:rgba(255,107,53,.12);color:#C4420F;}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}

/* 面包屑 */
.breadcrumb{padding:24px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";color:#B9C5BE;}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-brand);}
.breadcrumb .current{color:var(--c-muted);}

/* Banner */
.banner{
  position:relative;
  margin-top:24px;
  border-radius:var(--r-xl);
  overflow:hidden;
  min-height:440px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(100deg,rgba(16,27,23,.86) 0%,rgba(16,27,23,.62) 46%,rgba(16,27,23,.28) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-3);
}
.banner-inner{padding:56px;max-width:640px;}
.banner h1{
  font-size:40px;
  font-weight:700;
  line-height:1.28;
  letter-spacing:-.01em;
  color:#fff;
  margin:16px 0 16px;
}
.banner p{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:560px;
}
.banner-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap;}
.banner-points{
  display:flex;gap:24px;margin-top:32px;flex-wrap:wrap;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
}
.banner-points li{font-size:13px;color:rgba(255,255,255,.82);display:flex;align-items:center;gap:8px;}
.banner-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-lime);flex-shrink:0;
}

/* 三栏亮点 */
.hl-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.hl-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.hl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(14,143,110,.4);}
.hl-icon{
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--c-brand-soft);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.hl-icon svg{width:20px;height:20px;fill:none;stroke:var(--c-brand);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.hl-card h3{font-size:19px;font-weight:600;color:var(--c-ink);margin-bottom:10px;}
.hl-card p{font-size:14px;line-height:1.75;color:var(--c-text);}
.hl-meta{margin-top:16px;font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px;}
.hl-meta strong{color:var(--c-brand);font-weight:700;}

/* 交错图文 */
.feature-rows{display:flex;flex-direction:column;gap:64px;}
.feature-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.feature-row.is-reversed .feature-media{order:2;}
.feature-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  aspect-ratio:4/3;
}
.feature-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.feature-row:hover .feature-media img{transform:scale(1.04);}
.feature-copy h3{font-size:22px;font-weight:700;color:var(--c-ink);line-height:1.4;margin:14px 0 14px;}
.feature-copy p{font-size:15.5px;line-height:1.85;color:var(--c-text);margin-bottom:14px;}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:8px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;line-height:1.75;color:var(--c-text);
}
.check-list li::before{
  content:"";
  width:16px;height:16px;flex-shrink:0;margin-top:5px;
  border-radius:50%;
  background:var(--c-brand-soft) url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E8F6E' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5 10 17.5 19 7'/%3E%3C/svg%3E") center/10px 10px no-repeat;
}
.step-number{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--r-sm);
  background:var(--c-ink);color:var(--c-lime);
  font-size:14px;font-weight:700;margin-bottom:14px;
}

/* 数据条 */
.stats-bar{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  padding:32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  box-shadow:var(--sh-1);
}
.stat-item{padding:0 16px;border-left:1px solid var(--c-line);}
.stat-item:first-child{border-left:none;padding-left:0;}
.stat-value{font-size:28px;font-weight:700;color:var(--c-brand);line-height:1.3;}
.stat-value small{font-size:15px;font-weight:600;margin-left:2px;}
.stat-label{font-size:13px;color:var(--c-muted);margin-top:6px;line-height:1.6;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(14,143,110,.4);box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:rgba(14,143,110,.5);box-shadow:var(--sh-2);}
.faq-question{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  background:transparent;border:none;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);
  min-height:56px;
  line-height:1.6;
}
.faq-question:hover{color:var(--c-brand);}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-answer-inner{
  padding:0 20px 20px 23px;
  border-left:3px solid var(--c-brand);
  margin-left:20px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-text);
}

/* CTA */
.cta-panel{
  position:relative;
  background:var(--c-ink);
  border-radius:var(--r-xl);
  padding:48px;
  overflow:hidden;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.cta-panel::before{
  content:"";
  position:absolute;right:-120px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,143,110,.28) 0%,rgba(14,143,110,0) 70%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:28px;font-weight:700;color:#fff;line-height:1.35;margin-bottom:14px;}
.cta-copy p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);margin-bottom:22px;}
.cta-points{display:flex;flex-direction:column;gap:12px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.86);line-height:1.7;}
.cta-points li::before{
  content:"";
  width:18px;height:18px;flex-shrink:0;margin-top:4px;border-radius:50%;
  background:rgba(182,242,74,.16) url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23B6F24A' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5 10 17.5 19 7'/%3E%3C/svg%3E") center/10px 10px no-repeat;
}
.form-card{
  position:relative;z-index:1;
  background:var(--c-surface);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-3);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--c-ink);}
.field input,.field select,.field textarea{
  height:46px;
  padding:0 14px;
  border-radius:var(--r-md);
  border:1px solid var(--c-line);
  background:#FCFDFC;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(14,143,110,.2);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-warn);}
.field-error{font-size:12px;color:var(--c-warn);display:none;}
.field.has-error .field-error{display:block;}
.form-note{font-size:12px;color:var(--c-muted);line-height:1.7;margin-top:12px;}
.form-success{
  display:none;
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--r-md);
  background:var(--c-brand-soft);
  color:var(--c-brand-dark);
  font-size:13px;
  line-height:1.7;
}
.form-success.is-visible{display:block;}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#C9D6CF;margin-top:80px;padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB2A9;max-width:320px;}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-btn{
  width:38px;height:38px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  transition:background-color .2s ease,border-color .2s ease;
}
.social-btn svg{width:18px;height:18px;fill:none;stroke:#C9D6CF;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.social-btn:hover{background:rgba(182,242,74,.12);border-color:rgba(182,242,74,.5);text-decoration:none;}
.social-btn:hover svg{stroke:var(--c-lime);}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li,.footer-contact li{font-size:14px;line-height:2.2;}
.footer-links a{color:#C9D6CF;}
.footer-links a:hover{color:var(--c-lime);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{color:#9FB2A9;line-height:2;}
.footer-contact strong{color:#DDE8E2;font-weight:600;}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8B9C94;
}

/* 移动菜单 */
.mobile-panel{
  display:none;
  margin-top:12px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:16px;
  box-shadow:var(--sh-2);
}
.mobile-panel.is-open{display:block;}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.mobile-grid .nav-link{justify-content:center;padding:12px 10px;}
.mobile-cta{margin-top:14px;display:flex;flex-direction:column;gap:10px;}

/* 响应式 */
@media (max-width:1120px){
  .nav-links{gap:6px;}
  .nav-link{padding:8px 12px;font-size:13.5px;}
}
@media (max-width:992px){
  .container{padding:0 24px;}
  .section{padding:56px 0;}
  .section--tight{padding:40px 0;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .nav-card{min-height:64px;}
  .banner{min-height:400px;}
  .banner-inner{padding:40px;}
  .banner h1{font-size:32px;}
  .hl-strip{grid-template-columns:1fr;}
  .feature-row{grid-template-columns:1fr;gap:24px;}
  .feature-row.is-reversed .feature-media{order:0;}
  .stats-bar{grid-template-columns:1fr 1fr;gap:24px;}
  .stat-item{border-left:none;padding:0;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-panel{grid-template-columns:1fr;padding:32px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .section{padding:40px 0;}
  .banner{margin-top:16px;min-height:0;border-radius:var(--r-lg);}
  .banner-inner{padding:28px 20px;}
  .banner h1{font-size:28px;}
  .banner-actions .btn{width:100%;height:48px;}
  .banner-points{gap:12px;flex-direction:column;}
  .section-title{font-size:22px;}
  .feature-copy h3{font-size:19px;}
  .feature-media{aspect-ratio:16/10;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:20px;}
  .cta-panel{padding:24px 20px;border-radius:var(--r-lg);}
  .cta-copy h2{font-size:22px;}
  .stats-bar{padding:24px 20px;}
  .stat-value{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-about{max-width:none;}
  .mobile-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:479px){
  body{font-size:15px;}
  .banner h1{font-size:26px;}
  .mobile-grid{grid-template-columns:1fr;}
  .footer-links li,.footer-contact li{font-size:13.5px;}
}