/* roulang page: index */
:root{
  --cl-primary:#0F766E;
  --cl-primary-strong:#0B5F59;
  --cl-primary-soft:#E7F3F1;
  --cl-primary-line:#BBDCD7;
  --cl-accent:#D9702F;
  --cl-accent-soft:#FBEADA;
  --cl-ink:#12312E;
  --cl-body:#46564F;
  --cl-muted:#7C8D88;
  --cl-line:#DDE7E4;
  --cl-bg:#F4F7F6;
  --cl-surface:#FFFFFF;
  --cl-surface-deep:#12312E;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-panel:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,49,46,.05);
  --sh-2:0 6px 20px rgba(18,49,46,.07);
  --sh-3:0 18px 44px rgba(18,49,46,.12);
  --sp-section:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--cl-body);
  background:var(--cl-bg);
  font-weight:400;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cl-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--cl-primary-strong);}
h1,h2,h3,h4{color:var(--cl-ink);font-weight:700;margin:0;line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--cl-accent);outline-offset:2px;border-radius:var(--r-sm);}

.container{width:100%;max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}

/* ---------- 通用排版 ---------- */
.sec{padding:var(--sp-section) 0;}
.sec--tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--cl-primary);
  background:var(--cl-primary-soft);
  border:1px solid var(--cl-primary-line);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;margin-bottom:14px;}
.sec-head p{color:var(--cl-body);font-size:16px;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 按钮 ---------- */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-c:active{transform:translateY(1px);}
.btn-c--primary{background:var(--cl-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-c--primary:hover{background:var(--cl-primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-c--ghost{background:var(--cl-surface);color:var(--cl-primary);border:1px solid var(--cl-primary-line);}
.btn-c--ghost:hover{background:var(--cl-primary-soft);color:var(--cl-primary-strong);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-c--line{background:transparent;color:var(--cl-ink);border:1px solid var(--cl-line);}
.btn-c--line:hover{background:var(--cl-surface);border-color:var(--cl-primary-line);color:var(--cl-primary);transform:translateY(-2px);}
.btn-c--onDark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45);}
.btn-c--onDark:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-c--sm{height:40px;padding:0 18px;font-size:14px;}

.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--cl-primary);
}
.link-more i{transition:transform .18s ease;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border:1px solid var(--cl-primary-line);
}
.tag--accent{background:var(--cl-accent-soft);color:var(--cl-accent);border-color:#F0D3BC;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1050;
  padding:14px 0 10px;
  background:linear-gradient(180deg,rgba(244,247,246,.96) 60%,rgba(244,247,246,0));
  backdrop-filter:blur(6px);
}
.nav-panel{
  position:relative;
  display:flex;align-items:center;gap:18px;
  min-height:70px;padding:10px 20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--cl-line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  background:linear-gradient(150deg,var(--cl-primary) 0%,#14958A 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  box-shadow:var(--sh-1);
}
.brand__text{font-size:17px;font-weight:600;color:var(--cl-ink);letter-spacing:.01em;}
.brand__sub{display:block;font-size:11px;font-weight:500;color:var(--cl-muted);letter-spacing:.06em;line-height:1.2;}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 14px;border-radius:var(--r-md);
  font-size:14.5px;font-weight:500;color:var(--cl-body);
  border:1px solid transparent;
  transition:all .18s ease;
}
.nav-item i{font-size:15px;color:var(--cl-muted);transition:color .18s ease;}
.nav-item:hover{background:var(--cl-primary-soft);color:var(--cl-primary);transform:translateY(-1px);}
.nav-item:hover i{color:var(--cl-primary);}
.nav-item.is-active{
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border-color:var(--cl-primary-line);font-weight:600;
}
.nav-item.is-active i{color:var(--cl-primary);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--cl-line);background:var(--cl-surface);color:var(--cl-ink);
  align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{background:var(--cl-primary-soft);border-color:var(--cl-primary-line);color:var(--cl-primary);}

@media (max-width:991.98px){
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;margin:0;
    padding:12px;
    background:var(--cl-surface);
    border:1px solid var(--cl-line);
    border-radius:var(--r-panel);
    box-shadow:var(--sh-3);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{height:48px;width:100%;font-size:15px;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-c--primary{display:none;}
}

/* ---------- Hero ---------- */
.hero{padding-top:36px;padding-bottom:24px;}
.hero__inner{align-items:center;}
.hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;margin-bottom:18px;letter-spacing:-.01em;
}
.hero__sub{
  font-size:18px;font-weight:600;color:var(--cl-ink);margin-bottom:10px;
}
.hero__note{font-size:15px;color:var(--cl-body);margin-bottom:26px;max-width:520px;}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.hero__points{display:flex;flex-wrap:wrap;gap:18px;}
.hero__point{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--cl-muted);}
.hero__point i{color:var(--cl-primary);font-size:14px;}

.hero-visual{position:relative;padding-bottom:56px;}
.hero-shot{
  position:relative;overflow:hidden;border-radius:var(--r-panel);
  border:1px solid var(--cl-line);box-shadow:var(--sh-3);background:var(--cl-surface-deep);
}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-shot__mask{
  position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(18,49,46,.78) 0%,rgba(18,49,46,.34) 46%,rgba(18,49,46,0) 78%);
}
.hero-shot__caption{
  position:absolute;left:24px;top:24px;right:44%;
  color:#fff;
}
.hero-shot__caption strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px;}
.hero-shot__caption span{font-size:13px;color:rgba(255,255,255,.78);line-height:1.6;}
.hero-float{
  position:absolute;right:0;bottom:0;width:min(300px,78%);
  background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-3);overflow:hidden;
}
.hero-float img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.hero-float__body{padding:14px 18px 16px;}
.hero-float__num{display:block;font-size:26px;font-weight:700;color:var(--cl-primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-float__label{font-size:13px;color:var(--cl-muted);}

/* ---------- 指标卡 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:44px;}
.metric{
  background:var(--cl-surface);border:1px solid var(--cl-line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.metric:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--cl-primary-line);}
.metric__num{font-size:26px;font-weight:700;color:var(--cl-ink);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric__num em{font-style:normal;font-size:15px;font-weight:600;color:var(--cl-primary);margin-left:2px;}
.metric__label{font-size:13.5px;color:var(--cl-muted);margin-top:4px;}

/* ---------- 信任条 ---------- */
.trust{padding:34px 0 8px;}
.trust__label{font-size:13px;color:var(--cl-muted);letter-spacing:.06em;margin-bottom:14px;text-align:center;}
.trust__row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.trust__pill{
  height:36px;display:inline-flex;align-items:center;padding:0 16px;
  background:rgba(255,255,255,.8);border:1px solid var(--cl-line);
  border-radius:var(--r-pill);font-size:13.5px;color:var(--cl-body);
}

/* ---------- Bento 功能 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.bento__card{
  background:var(--cl-surface);border:1px solid var(--cl-line);border-radius:var(--r-lg);
  padding:26px 26px 24px;box-shadow:var(--sh-1);transition:all .18s ease;
  display:flex;flex-direction:column;
}
.bento__card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--cl-primary-line);}
.bento__icon{
  width:44px;height:44px;border-radius:var(--r-md);background:var(--cl-primary-soft);
  color:var(--cl-primary);display:flex;align-items:center;justify-content:center;
  font-size:19px;margin-bottom:16px;
}
.bento__card h3{font-size:19px;margin-bottom:10px;}
.bento__card p{font-size:14.5px;color:var(--cl-body);margin-bottom:16px;}
.bento__list li{
  display:flex;align-items:flex-start;gap:9px;
  font-size:14px;color:var(--cl-body);margin-bottom:8px;line-height:1.7;
}
.bento__list li:last-child{margin-bottom:0;}
.bento__list i{color:var(--cl-primary);font-size:12px;margin-top:7px;flex-shrink:0;}
.bento__media{margin-top:auto;padding-top:18px;}
.bento__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--cl-line);}
.bento--7{grid-column:span 7;}
.bento--5{grid-column:span 5;}
.bento--4{grid-column:span 4;}

/* ---------- 场景 zig-zag ---------- */
.scene{display:grid;grid-template-columns:repeat(2,1fr);gap:52px;align-items:center;padding:38px 0;}
.scene + .scene{border-top:1px solid var(--cl-line);}
.scene__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-panel);border:1px solid var(--cl-line);box-shadow:var(--sh-2);}
.scene h3{font-size:22px;margin-bottom:12px;}
.scene > div > p{font-size:15px;color:var(--cl-body);margin-bottom:18px;}
.scene__steps li{
  display:flex;gap:12px;margin-bottom:14px;font-size:14.5px;color:var(--cl-body);line-height:1.75;
}
.scene__steps li:last-child{margin-bottom:0;}
.scene__steps b{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  background:var(--cl-primary-soft);color:var(--cl-primary);
  font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.scene--rev .scene__media{order:2;}
.scene--rev .scene__text{order:1;}

/* ---------- 深色案例带 ---------- */
.band-dark{
  background:var(--cl-surface-deep);color:rgba(255,255,255,.82);
  padding:var(--sp-section) 0;position:relative;overflow:hidden;
}
.band-dark::after{
  content:"";position:absolute;left:-8%;right:-8%;top:-140px;height:280px;
  background:radial-gradient(ellipse at center,rgba(187,220,215,.08) 0%,rgba(187,220,215,0) 70%);
  pointer-events:none;
}
.band-dark .eyebrow{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#BBDCD7;}
.band-dark h2{color:#fff;}
.band-dark .sec-head p{color:rgba(255,255,255,.72);}
.case-card{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);padding:26px;
  height:100%;display:flex;flex-direction:column;
  transition:all .18s ease;
}
.case-card:hover{background:rgba(255,255,255,.09);transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,.25);}
.case-card__quote{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.9);margin-bottom:18px;}
.case-card__quote::before{content:"“";color:#BBDCD7;font-size:22px;margin-right:2px;}
.case-card__quote::after{content:"”";color:#BBDCD7;font-size:22px;margin-left:2px;}
.case-card__who{font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px;margin-top:auto;}
.case-card__stats{display:flex;gap:26px;border-top:1px solid rgba(255,255,255,.14);padding-top:16px;}
.case-card__stats div strong{display:block;font-size:22px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.case-card__stats div span{font-size:12.5px;color:rgba(255,255,255,.6);}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start;}
.price-card{
  position:relative;background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;height:100%;transition:all .18s ease;
}
.price-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.price-card--hot{
  border-color:var(--cl-primary);border-width:1.5px;
  box-shadow:var(--sh-3);
  transform:translateY(-8px);
}
.price-card--hot:hover{transform:translateY(-10px);}
.price-card__flag{
  position:absolute;top:16px;right:16px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--cl-accent-soft);color:var(--cl-accent);
  border:1px solid #F0D3BC;font-size:13px;font-weight:600;
  display:inline-flex;align-items:center;
}
.price-card h3{font-size:20px;margin-bottom:6px;}
.price-card__for{font-size:13.5px;color:var(--cl-muted);margin-bottom:18px;}
.price-card__price{font-size:32px;font-weight:700;color:var(--cl-ink);font-variant-numeric:tabular-nums;line-height:1.2;}
.price-card__price span{font-size:14px;font-weight:500;color:var(--cl-muted);margin-left:4px;}
.price-card__note{font-size:13px;color:var(--cl-muted);margin-bottom:20px;}
.price-card__list{margin-bottom:24px;flex:1;}
.price-card__list li{
  display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--cl-body);
  margin-bottom:10px;line-height:1.7;
}
.price-card__list li i{font-size:13px;margin-top:5px;flex-shrink:0;color:var(--cl-primary);}
.price-card__list li.is-off{color:var(--cl-muted);}
.price-card__list li.is-off i{color:#B9C6C2;}

/* ---------- 最新信息 ---------- */
.cms-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-card{
  background:var(--cl-surface);border:1px solid var(--cl-line);border-radius:var(--r-lg);
  overflow:hidden;height:100%;box-shadow:var(--sh-1);transition:all .18s ease;
  display:flex;flex-direction:column;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--cl-primary-line);}
.news-card__link{display:flex;flex-direction:column;height:100%;color:inherit;}
.news-card__link:hover{color:inherit;}
.news-card__cover{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-card__title{
  font-size:16.5px;font-weight:600;color:var(--cl-ink);line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-card__title{color:var(--cl-primary);}
.news-card__sum{
  font-size:13.5px;color:var(--cl-body);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.news-card__time{font-size:12.5px;color:var(--cl-muted);font-variant-numeric:tabular-nums;}
.cms-empty{
  text-align:center;padding:56px 24px;background:var(--cl-surface);
  border:1px dashed var(--cl-primary-line);border-radius:var(--r-panel);
}
.cms-empty i{font-size:28px;color:var(--cl-primary);margin-bottom:14px;display:block;}
.cms-empty p{font-size:15px;color:var(--cl-body);margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-lg) !important;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-item:last-child{margin-bottom:0;}
.faq-accordion .accordion-button{
  position:relative;
  width:100%;background:var(--cl-surface);color:var(--cl-ink);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:20px 56px 20px 24px;box-shadow:none;border:none;text-align:left;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--cl-primary);background:var(--cl-primary-soft);}
.faq-accordion .accordion-button::after{
  content:"+";font-family:inherit;font-size:20px;font-weight:500;line-height:1;
  color:var(--cl-primary);
  width:auto;height:auto;background-image:none;
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  transition:transform .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"−";transform:translateY(-50%);}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--cl-accent);outline-offset:-2px;}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--cl-primary);border-radius:0 3px 3px 0;
}
.faq-accordion .accordion-body{
  padding:4px 24px 22px;font-size:14.5px;color:var(--cl-body);line-height:1.85;
  border-top:1px solid var(--cl-line);
}

/* ---------- 结尾 CTA ---------- */
.cta-panel{
  background:linear-gradient(135deg,var(--cl-primary-soft) 0%,#F6FBFA 70%);
  border:1px solid var(--cl-primary-line);border-radius:var(--r-panel);
  padding:52px 48px;position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;bottom:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(15,118,110,.08) 0%,rgba(15,118,110,0) 70%);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-panel p{font-size:15px;max-width:620px;margin-bottom:26px;}
.cta-panel__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--cl-surface-deep);color:rgba(255,255,255,.66);padding:64px 0 26px;margin-top:8px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.site-footer .brand__text{color:#fff;}
.site-footer .brand__sub{color:rgba(255,255,255,.5);}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);}
.foot-links li{margin-bottom:10px;}
.foot-links a{font-size:13.5px;color:rgba(255,255,255,.66);}
.foot-links a:hover{color:#BBDCD7;}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.48);
}
.foot-bottom a{color:rgba(255,255,255,.6);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-shot__caption{right:34%;}
}
@media (max-width:991.98px){
  :root{--sp-section:72px;}
  .hero{padding-top:20px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .bento--7,.bento--5,.bento--4{grid-column:span 12;}
  .scene{grid-template-columns:1fr;gap:26px;padding:30px 0;}
  .scene--rev .scene__media{order:0;}
  .scene--rev .scene__text{order:0;}
  .price-grid{grid-template-columns:1fr;gap:18px;}
  .price-card--hot{transform:none;}
  .price-card--hot:hover{transform:translateY(-3px);}
  .cta-panel{padding:40px 28px;}
  .hero-float{position:static;width:100%;margin-top:16px;}
  .hero-visual{padding-bottom:0;}
  .hero-shot__caption{right:24px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .site-header{padding:10px 0 8px;}
  .nav-panel{padding:8px 12px;min-height:62px;gap:10px;border-radius:var(--r-lg);}
  .brand__text{font-size:15.5px;}
  .brand__sub{display:none;}
  .hero__actions .btn-c{width:100%;}
  .hero__actions{flex-direction:column;align-items:stretch;}
  .hero-shot__caption{position:static;padding:18px;background:rgba(18,49,46,.9);}
  .hero-shot__caption span{color:rgba(255,255,255,.72);}
  .sec-head{margin-bottom:30px;}
  .bento__card,.price-card,.news-card__body{padding:20px;}
  .faq-accordion .accordion-button{font-size:15px;padding:17px 50px 17px 18px;}
  .faq-accordion .accordion-body{padding:4px 18px 18px;}
  .foot-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  :root{--sp-section:56px;}
  .metrics{grid-template-columns:1fr;}
  .hero h1{font-size:26px;}
  .hero__sub{font-size:16px;}
  .case-card__stats{gap:18px;}
  .cta-panel{padding:32px 20px;}
}

/* roulang page: article */
:root{
  --cl-primary:#0F766E;
  --cl-primary-strong:#0B5F59;
  --cl-primary-soft:#E7F3F1;
  --cl-primary-line:#BBDCD7;
  --cl-accent:#D9702F;
  --cl-accent-soft:#FBEADA;
  --cl-ink:#12312E;
  --cl-body:#46564F;
  --cl-muted:#7C8D88;
  --cl-line:#DDE7E4;
  --cl-bg:#F4F7F6;
  --cl-surface:#FFFFFF;
  --cl-surface-deep:#12312E;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-panel:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,49,46,.05);
  --sh-2:0 6px 20px rgba(18,49,46,.07);
  --sh-3:0 18px 44px rgba(18,49,46,.12);
  --sp-section:96px;
  --font-sans:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--cl-body);
  background:var(--cl-bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--cl-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--cl-primary-strong);}
h1,h2,h3,h4,h5{color:var(--cl-ink);font-weight:600;margin:0;}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:22px;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cl-accent);outline-offset:2px;border-radius:var(--r-sm);}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:14px 0 12px;
  background:linear-gradient(180deg,rgba(244,247,246,.96) 60%,rgba(244,247,246,0));
  backdrop-filter:blur(6px);
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:70px;
  padding:0 20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--cl-line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:12px;color:var(--cl-ink);}
.brand:hover{color:var(--cl-ink);}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-md);
  background:linear-gradient(140deg,var(--cl-primary),#14958A);
  color:#fff;font-size:17px;
  box-shadow:var(--sh-1);
}
.brand__text{display:block;font-size:17px;font-weight:600;line-height:1.2;color:var(--cl-ink);}
.brand__sub{display:block;font-size:11px;letter-spacing:.14em;color:var(--cl-muted);line-height:1.4;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links .nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;
  font-size:14.5px;font-weight:500;
  color:var(--cl-body);
  border:1px solid transparent;
  border-radius:var(--r-md);
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.nav-links .nav-item i{color:var(--cl-muted);font-size:14px;transition:color .18s ease;}
.nav-links .nav-item:hover{
  background:var(--cl-primary-soft);
  color:var(--cl-primary);
  transform:translateY(-1px);
}
.nav-links .nav-item:hover i{color:var(--cl-primary);}
.nav-links .nav-item.is-active{
  background:var(--cl-primary-soft);
  border-color:var(--cl-primary-line);
  color:var(--cl-primary-strong);
  font-weight:600;
}
.nav-links .nav-item.is-active i{color:var(--cl-primary);}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-c--primary{background:var(--cl-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-c--primary:hover{background:var(--cl-primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-c--primary:active{transform:translateY(0);}
.btn-c--ghost{background:#fff;color:var(--cl-primary);border-color:var(--cl-primary-line);}
.btn-c--ghost:hover{background:var(--cl-primary-soft);color:var(--cl-primary-strong);transform:translateY(-2px);}
.btn-c--light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-c--light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
.btn-c--white{background:#fff;color:var(--cl-primary-strong);}
.btn-c--white:hover{background:var(--cl-primary-soft);color:var(--cl-primary-strong);transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--cl-line);border-radius:var(--r-md);
  color:var(--cl-ink);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cl-primary-line);color:var(--cl-primary);}

@media (max-width:991.98px){
  .nav-links{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:14px;
    background:var(--cl-surface);
    border:1px solid var(--cl-line);
    border-radius:var(--r-panel);
    box-shadow:var(--sh-3);
  }
  .nav-links.is-open{display:flex;}
  .nav-links .nav-item{width:100%;padding:13px 14px;}
  .nav-toggle{display:inline-flex;}
  .nav-right .btn-c--primary{display:none;}
}

/* ---------- article head ---------- */
.article-hero{
  padding:40px 0 8px;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--cl-muted);margin-bottom:18px;
}
.crumb a{color:var(--cl-muted);}
.crumb a:hover{color:var(--cl-primary);}
.crumb i{font-size:10px;color:var(--cl-muted);}
.crumb .crumb__now{color:var(--cl-ink);font-weight:500;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;
  font-size:13px;font-weight:500;line-height:1;
  border-radius:var(--r-pill);
  background:var(--cl-primary-soft);
  color:var(--cl-primary-strong);
  border:1px solid var(--cl-primary-line);
}
.chip--accent{background:var(--cl-accent-soft);color:#A8501B;border-color:#F0D2BA;}
.article-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.28;
  font-weight:700;
  margin:16px 0 18px;
  max-width:24ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:var(--cl-muted);
  padding-bottom:24px;
  border-bottom:1px solid var(--cl-line);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--cl-primary);font-size:13px;}
.article-meta time{font-variant-numeric:tabular-nums;}

/* ---------- layout ---------- */
.article-section{padding:36px 0 var(--sp-section);}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:36px;
  justify-content:center;
  max-width:760px;
  margin:0 auto;
}
@media (min-width:1200px){
  .article-layout{
    grid-template-columns:minmax(0,760px) 280px;
    max-width:none;
    gap:48px;
    align-items:start;
  }
}
.article-card{
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-1);
  padding:28px;
}
@media (max-width:575.98px){
  .article-card{padding:20px 16px;border-radius:var(--r-lg);}
}

/* ---------- body typography ---------- */
.article-body{font-size:17px;line-height:1.9;color:var(--cl-body);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.4;
  font-weight:600;
  color:var(--cl-ink);
  margin:40px 0 16px;
  padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:var(--r-pill);background:var(--cl-primary);
}
.article-body h3{
  font-size:20px;line-height:1.5;font-weight:600;color:var(--cl-ink);
  margin:28px 0 12px;
}
.article-body h4{font-size:17px;font-weight:600;color:var(--cl-ink);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body li{margin-bottom:8px;line-height:1.9;}
.article-body li::marker{color:var(--cl-primary);}
.article-body blockquote{
  margin:24px 0;
  padding:20px;
  background:var(--cl-primary-soft);
  border-left:3px solid var(--cl-primary);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--cl-ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:24px auto;
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  text-align:center;font-size:14px;color:var(--cl-muted);margin-top:10px;
}
.article-body a{color:var(--cl-primary-strong);text-decoration:underline;text-decoration-color:var(--cl-primary-line);text-underline-offset:3px;}
.article-body a:hover{text-decoration-color:var(--cl-primary);}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:#EEF3F2;
  color:#1F4B47;
  padding:2px 6px;
  border-radius:var(--r-sm);
}
.article-body pre{
  background:#F1F5F4;
  border:1px solid var(--cl-line);
  border-radius:var(--r-md);
  padding:18px;
  overflow:auto;
  margin:24px 0;
}
.article-body pre code{background:none;padding:0;}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15.5px;
}
.article-body th,.article-body td{
  border:0;
  border-bottom:1px solid var(--cl-line);
  padding:12px 10px;
  text-align:left;
}
.article-body th{background:var(--cl-primary-soft);color:var(--cl-ink);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--cl-line);margin:32px 0;}

/* ---------- empty state ---------- */
.empty-state{
  text-align:center;
  padding:56px 24px;
}
.empty-state i{font-size:38px;color:var(--cl-primary-line);display:block;margin-bottom:16px;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--cl-muted);margin-bottom:22px;}

/* ---------- side column ---------- */
.side-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;}
@media (max-width:1199.98px){
  .side-stack{position:static;}
}
.side-card{
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:22px;
}
.side-card h3{font-size:16px;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--cl-primary);font-size:14px;}
.side-card p{font-size:14px;color:var(--cl-muted);margin-bottom:14px;line-height:1.75;}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{margin-bottom:10px;}
.side-list a{
  display:flex;align-items:flex-start;gap:8px;
  font-size:14.5px;color:var(--cl-body);
  padding:8px 10px;border-radius:var(--r-sm);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.side-list a:hover{background:var(--cl-primary-soft);color:var(--cl-primary-strong);border-color:var(--cl-primary-line);transform:translateX(2px);}
.side-list i{color:var(--cl-primary);font-size:12px;margin-top:5px;}
.side-cta{
  background:linear-gradient(160deg,#12312E,#0F766E);
  color:#DCEDEA;
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;}
.side-cta p{color:#B7D6D2;font-size:14px;margin-bottom:18px;}
.side-cta .btn-c{width:100%;}

/* ---------- tags ---------- */
.tag-row{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:34px;padding-top:24px;border-top:1px solid var(--cl-line);
}
.tag-row .tag-label{font-size:14px;color:var(--cl-muted);display:inline-flex;align-items:center;gap:6px;margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  font-size:13.5px;
  border-radius:var(--r-pill);
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  color:var(--cl-body);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.tag:hover{background:var(--cl-primary-soft);border-color:var(--cl-primary-line);color:var(--cl-primary-strong);}

.article-actions{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:28px;
}

/* ---------- related ---------- */
.related{padding:0 0 var(--sp-section);}
.sec-head{max-width:760px;margin-bottom:28px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--cl-primary);
  background:var(--cl-primary-soft);
  border:1px solid var(--cl-primary-line);
  border-radius:var(--r-pill);
  height:28px;padding:0 12px;
  margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.35;margin-bottom:10px;}
.sec-head p{color:var(--cl-muted);font-size:15px;margin:0;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
@media (max-width:991.98px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:575.98px){.related-grid{grid-template-columns:1fr;}}
.info-card{
  display:flex;flex-direction:column;
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--cl-primary-line);}
.info-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E4EDEB;}
.info-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.info-card:hover .info-card__media img{transform:scale(1.04);}
.info-card__badge{
  position:absolute;left:12px;top:12px;
  height:26px;padding:0 12px;
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.94);
  color:var(--cl-primary-strong);
  border-radius:var(--r-pill);
}
.info-card__body{padding:20px;display:flex;flex-direction:column;flex:1;}
.info-card__body h3{font-size:17px;line-height:1.5;margin-bottom:10px;}
.info-card__body h3 a{color:var(--cl-ink);}
.info-card__body h3 a:hover{color:var(--cl-primary);}
.info-card__body p{
  font-size:14.5px;color:var(--cl-muted);line-height:1.75;
  margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--cl-muted);
  padding-top:14px;border-top:1px solid var(--cl-line);
}
.info-card__foot time{font-variant-numeric:tabular-nums;}
.info-card__foot .go{color:var(--cl-primary);font-weight:600;}
.info-card__foot .go i{font-size:11px;margin-left:4px;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--cl-surface-deep);
  color:#C6DCD8;
  padding:var(--sp-section) 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.35;margin-bottom:14px;}
.cta-band p{color:#B7D6D2;font-size:16px;max-width:60ch;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-points{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  margin-top:28px;padding:0;list-style:none;
}
.cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;color:#CDE3E0;}
.cta-points i{color:#5FC3B8;font-size:13px;}

/* ---------- footer ---------- */
.site-footer{
  background:#0E2724;
  color:#A9C4C0;
  padding:64px 0 28px;
  font-size:14.5px;
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.site-footer p{color:#9BB8B4;line-height:1.8;font-size:14px;}
.site-footer .brand__text{color:#fff;}
.site-footer .brand__sub{color:#7FA09C;}
.foot-links{list-style:none;padding:0;margin:0;}
.foot-links li{margin-bottom:10px;}
.foot-links a{color:#A9C4C0;font-size:14px;}
.foot-links a:hover{color:#fff;}
.foot-bottom{
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#82A19D;
}
.foot-bottom a{color:#BBDCD7;}
.foot-bottom a:hover{color:#fff;}

@media (max-width:991.98px){:root{--sp-section:72px;}}
@media (max-width:767.98px){
  :root{--sp-section:56px;}
  .article-hero{padding:24px 0 4px;}
  .article-title{max-width:none;}
  .cta-band::after{display:none;}
  .btn-c{height:48px;}
  .article-actions .btn-c{width:100%;}
}

/* roulang page: category1 */
:root{
  --cl-primary:#0F766E;
  --cl-primary-strong:#0B5F59;
  --cl-primary-soft:#E7F3F1;
  --cl-primary-line:#BBDCD7;
  --cl-accent:#D9702F;
  --cl-accent-soft:#FBEADA;
  --cl-ink:#12312E;
  --cl-body:#46564F;
  --cl-muted:#7C8D88;
  --cl-line:#DDE7E4;
  --cl-bg:#F4F7F6;
  --cl-surface:#FFFFFF;
  --cl-surface-deep:#12312E;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-panel:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(18,49,46,.05);
  --sh-2:0 6px 20px rgba(18,49,46,.07);
  --sh-3:0 18px 44px rgba(18,49,46,.12);
  --sp-section:96px;
  --ff:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--ff);font-size:16px;line-height:1.8;
  color:var(--cl-body);background:var(--cl-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--cl-primary)}
h1,h2,h3,h4{margin:0;color:var(--cl-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cl-accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1000;padding:12px 0 4px;background:linear-gradient(180deg,rgba(244,247,246,.96),rgba(244,247,246,.72));backdrop-filter:blur(8px)}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--cl-line);border-radius:var(--r-panel);
  box-shadow:var(--sh-2);padding:0 20px;min-height:70px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand__mark{
  width:40px;height:40px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border:1px solid var(--cl-primary-line);font-size:18px;
}
.brand__text{display:block;font-size:17px;font-weight:600;color:var(--cl-ink);line-height:1.3}
.brand__sub{display:block;font-size:11px;letter-spacing:.14em;color:var(--cl-muted);font-weight:500}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--r-md);
  font-size:15px;font-weight:500;color:var(--cl-body);
  border:1px solid transparent;transition:all .18s ease;white-space:nowrap;
}
.nav-item i{font-size:15px;color:var(--cl-muted);transition:color .18s ease}
.nav-item:hover{background:var(--cl-primary-soft);color:var(--cl-primary);transform:translateY(-1px)}
.nav-item:hover i{color:var(--cl-primary)}
.nav-item.is-active{background:var(--cl-primary-soft);color:var(--cl-primary);border-color:var(--cl-primary-line)}
.nav-item.is-active i{color:var(--cl-primary)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--cl-line);background:var(--cl-surface);
  color:var(--cl-ink);font-size:17px;cursor:pointer;transition:all .18s ease;
}
.nav-toggle:hover{background:var(--cl-primary-soft);color:var(--cl-primary);border-color:var(--cl-primary-line)}

/* ============ 按钮 ============ */
.btn-c{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:all .18s ease;line-height:1;white-space:nowrap;
}
.btn-c--primary{background:var(--cl-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-c--primary:hover{background:var(--cl-primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-c--primary:active{transform:translateY(1px)}
.btn-c--second{background:var(--cl-surface);color:var(--cl-primary);border-color:var(--cl-primary-line)}
.btn-c--second:hover{background:var(--cl-primary-soft);color:var(--cl-primary-strong);transform:translateY(-2px)}
.btn-c--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-c--ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.btn-c--lg{height:48px;padding:0 26px;font-size:16px}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0}
.section--tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--cl-primary);background:var(--cl-primary-soft);
  border:1px solid var(--cl-primary-line);border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.eyebrow--accent{color:var(--cl-accent);background:var(--cl-accent-soft);border-color:#F0D3B6}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,3vw,32px);line-height:1.35}
h3{font-size:20px;line-height:1.5}
.lead{font-size:17px;line-height:1.85;color:var(--cl-body)}
.muted{color:var(--cl-muted);font-size:14px;line-height:1.7}

/* ============ 页头横幅 ============ */
.page-hero{padding:28px 0 0}
.page-hero__card{
  position:relative;border-radius:var(--r-panel);overflow:hidden;
  border:1px solid var(--cl-line);box-shadow:var(--sh-3);
  min-height:260px;display:flex;align-items:flex-end;
}
.page-hero__card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.page-hero__card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(18,49,46,.92) 0%,rgba(18,49,46,.72) 46%,rgba(18,49,46,.18) 100%);
}
.page-hero__body{position:relative;z-index:2;padding:40px 44px;max-width:760px}
.page-hero__body .eyebrow{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.28);color:#DFF2EE}
.page-hero__body h1{color:#fff;margin-bottom:14px}
.page-hero__body p{color:rgba(255,255,255,.86);font-size:16px;line-height:1.8;max-width:640px}

/* ============ 筛选胶囊 ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;padding:28px 0 0}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--cl-body);
  background:var(--cl-surface);border:1px solid var(--cl-line);
  transition:all .18s ease;
}
.chip i{font-size:13px;color:var(--cl-muted);transition:color .18s ease}
.chip:hover{border-color:var(--cl-primary-line);color:var(--cl-primary);transform:translateY(-1px)}
.chip:hover i{color:var(--cl-primary)}
.chip.is-current{background:var(--cl-primary);border-color:var(--cl-primary);color:#fff}
.chip.is-current i{color:#fff}

/* ============ 图文交替步骤 ============ */
.step-row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;
  padding:36px 0;border-bottom:1px solid var(--cl-line);
}
.step-row:last-child{border-bottom:0}
.step-row--reverse .step-media{order:2}
.step-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--cl-line);
  box-shadow:var(--sh-2);background:var(--cl-surface);
}
.step-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:var(--r-sm);
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border:1px solid var(--cl-primary-line);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-body h3{margin-bottom:12px}
.step-body>p{margin-bottom:18px}
.check-list{display:grid;gap:10px;margin-bottom:20px}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.7;color:var(--cl-body)}
.check-list li i{margin-top:6px;color:var(--cl-primary);font-size:13px}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--cl-primary);
  border-bottom:1px solid var(--cl-primary-line);padding-bottom:2px;
}
.text-link i{font-size:12px;transition:transform .18s ease}
.text-link:hover{color:var(--cl-primary-strong);border-color:var(--cl-primary-strong)}
.text-link:hover i{transform:translateX(3px)}

/* ============ 深色节奏带 ============ */
.deep-band{
  background:var(--cl-surface-deep);color:#C9DAD6;
  border-radius:var(--r-panel);padding:56px 48px;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.deep-band h2{color:#fff}
.deep-band .eyebrow{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.26);color:#DFF2EE}
.deep-band .lead{color:rgba(255,255,255,.82)}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
.tl-item{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);padding:22px 20px;
  transition:all .18s ease;
}
.tl-item:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.tl-item span{display:block;font-size:13px;font-weight:600;color:#8FD3C9;letter-spacing:.04em;margin-bottom:8px}
.tl-item h4{color:#fff;font-size:16px;margin-bottom:8px}
.tl-item p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.74)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px;border-top:1px solid rgba(255,255,255,.14);padding-top:28px}
.stat-num{font-size:30px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2}
.stat-cap{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}

/* ============ 卡片 ============ */
.cl-card{
  background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:26px;
  transition:all .18s ease;height:100%;
}
.cl-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--cl-primary-line)}
.card-ico{
  width:44px;height:44px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border:1px solid var(--cl-primary-line);font-size:18px;margin-bottom:16px;
}
.cl-card h3{margin-bottom:10px;font-size:18px}
.cl-card p{font-size:15px;line-height:1.75}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  overflow:hidden;position:relative;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--cl-primary);opacity:0;transition:opacity .18s ease;
}
.faq-item.is-open{border-color:var(--cl-primary-line);box-shadow:var(--sh-2)}
.faq-item.is-open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--cl-ink);
}
.faq-q:hover{color:var(--cl-primary)}
.faq-ico{
  flex:0 0 auto;width:26px;height:26px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--cl-primary-soft);color:var(--cl-primary);
  border:1px solid var(--cl-primary-line);font-size:12px;transition:all .18s ease;
}
.faq-item.is-open .faq-ico{background:var(--cl-primary);color:#fff;border-color:var(--cl-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a__inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--cl-body)}

/* ============ 结尾 CTA ============ */
.cta-card{
  background:var(--cl-surface);border:1px solid var(--cl-line);
  border-radius:var(--r-panel);box-shadow:var(--sh-3);
  padding:52px 48px;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-card h2{margin-bottom:14px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.cta-side{
  background:var(--cl-primary-soft);border:1px solid var(--cl-primary-line);
  border-radius:var(--r-lg);padding:24px;
}
.cta-side h4{font-size:16px;margin-bottom:10px}
.cta-side p{font-size:14px;line-height:1.8;color:var(--cl-body)}

/* ============ 页脚 ============ */
.site-footer{background:var(--cl-surface-deep);color:#C4D6D2;margin-top:var(--sp-section);padding:64px 0 28px}
.site-footer .brand__text{color:#fff}
.site-footer .brand__sub{color:#7FB3AB}
.site-footer .brand__mark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#8FD3C9}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72)}
.foot-links{display:grid;gap:10px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72)}
.foot-links a:hover{color:#8FD3C9}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);
}
.foot-bottom a{color:#8FD3C9}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sp-section:88px}
}
@media (max-width:991.98px){
  :root{--sp-section:72px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-panel{min-height:64px;padding:0 16px;gap:12px}
  .nav-links{
    position:absolute;left:24px;right:24px;top:calc(100% + 8px);
    flex-direction:column;align-items:stretch;gap:8px;margin:0;
    background:var(--cl-surface);border:1px solid var(--cl-line);
    border-radius:var(--r-panel);box-shadow:var(--sh-3);padding:14px;
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-item{width:100%;justify-content:flex-start;padding:12px 14px}
  .nav-right .btn-c{display:none}
  .nav-links .nav-cta-mobile{display:flex}
  .site-header{position:relative}
  .step-row{grid-template-columns:1fr;gap:28px}
  .step-row--reverse .step-media{order:0}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:1fr;gap:18px}
  .deep-band{padding:40px 28px}
  .cta-card{grid-template-columns:1fr;padding:36px 28px}
  .page-hero__body{padding:32px 26px}
}
@media (max-width:767.98px){
  :root{--sp-section:56px}
  .page-hero__card{min-height:230px}
  .timeline{grid-template-columns:1fr}
  .section-head{margin-bottom:28px}
  .faq-q{padding:18px 18px;font-size:15px}
  .faq-a__inner{padding:0 18px 18px}
}
@media (max-width:575.98px){
  body{font-size:15px}
  .brand__text{font-size:15px}
  .brand__sub{font-size:10px}
  .btn-c{width:100%;height:48px}
  .cta-actions{flex-direction:column}
  .chip{height:36px;padding:0 14px;font-size:13px}
  .deep-band{padding:32px 20px}
  .cl-card{padding:22px}
  .page-hero__body{padding:26px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root{
  --cl-primary:#0F766E;
  --cl-primary-strong:#0B5F59;
  --cl-primary-soft:#E7F3F1;
  --cl-primary-line:#BBDCD7;
  --cl-accent:#D9702F;
  --cl-accent-soft:#FBEADA;
  --cl-ink:#12312E;
  --cl-body:#46564F;
  --cl-muted:#7C8D88;
  --cl-line:#DDE7E4;
  --cl-bg:#F4F7F6;
  --cl-surface:#FFFFFF;
  --cl-surface-deep:#12312E;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-panel:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,49,46,.05);
  --sh-2:0 6px 20px rgba(18,49,46,.07);
  --sh-3:0 18px 44px rgba(18,49,46,.12);
  --sp-section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--cl-body);
  background:var(--cl-bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden;}
h1,h2,h3,h4{color:var(--cl-ink);margin:0;font-weight:600;line-height:1.35;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cl-primary);text-decoration:none;transition:color 180ms ease;}
a:hover{color:var(--cl-primary-strong);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cl-accent);outline-offset:2px;border-radius:6px;}
section[id]{scroll-margin-top:110px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:14px 0;
  background:linear-gradient(180deg,rgba(244,247,246,.97) 0%,rgba(244,247,246,.78) 100%);
  backdrop-filter:blur(10px);
}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:18px;
  min-height:70px;
  padding:0 18px 0 20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--cl-line);
  border-radius:var(--r-panel);
  box-shadow:var(--sh-2);
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--cl-ink);flex-shrink:0;}
.brand__mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--cl-primary-soft);
  border:1px solid var(--cl-primary-line);
  color:var(--cl-primary);
  font-size:18px;
}
.brand__text{display:block;font-size:17px;font-weight:600;color:var(--cl-ink);line-height:1.2;}
.brand__sub{display:block;font-size:10.5px;letter-spacing:.14em;font-weight:500;color:var(--cl-muted);line-height:1.6;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 14px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;font-weight:500;
  color:var(--cl-body);
  transition:background 180ms ease,color 180ms ease,transform 180ms ease,border-color 180ms ease;
}
.nav-item i{font-size:14px;color:var(--cl-muted);transition:color 180ms ease;}
.nav-item:hover{background:var(--cl-primary-soft);color:var(--cl-primary);transform:translateY(-1px);}
.nav-item:hover i{color:var(--cl-primary);}
.nav-item.is-active{background:var(--cl-primary-soft);border-color:var(--cl-primary-line);color:var(--cl-primary);font-weight:600;}
.nav-item.is-active i{color:var(--cl-primary);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-cta-mobile{display:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:var(--r-md);
  border:1px solid var(--cl-primary-line);
  background:#fff;
  color:var(--cl-primary);
  font-size:16px;
  cursor:pointer;
  transition:background 180ms ease;
}
.nav-toggle:hover{background:var(--cl-primary-soft);}
@media (max-width:991.98px){
  .nav-panel{flex-wrap:wrap;}
  .nav-links{display:none;}
  .nav-links.is-open{
    display:flex;
    position:absolute;
    top:calc(100% + 10px);
    left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:14px;
    background:#fff;
    border:1px solid var(--cl-line);
    border-radius:var(--r-panel);
    box-shadow:var(--sh-3);
    margin-left:0;
  }
  .nav-links.is-open .nav-item{justify-content:flex-start;height:48px;width:100%;}
  .nav-links.is-open .nav-cta-mobile{
    display:flex;
    align-items:center;
    justify-content:center;
    height:48px;
    margin-top:6px;
    width:100%;
  }
  .nav-right{margin-left:auto;}
  .nav-right .btn-c{display:none;}
  .nav-toggle{display:inline-flex;}
}

/* ---------- 按钮 ---------- */
.btn-c{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.btn-c--primary{background:var(--cl-primary);border-color:var(--cl-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-c--primary:hover{background:var(--cl-primary-strong);border-color:var(--cl-primary-strong);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-c--primary:active{transform:translateY(1px);}
.btn-c--line{background:#fff;border-color:var(--cl-primary-line);color:var(--cl-primary);}
.btn-c--line:hover{background:var(--cl-primary-soft);border-color:var(--cl-primary);color:var(--cl-primary);transform:translateY(-2px);}
.btn-c--line:active{transform:translateY(1px);}
.btn-c--ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-c--ghost:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px);}
.btn-c--onDark{background:#fff;border-color:#fff;color:var(--cl-primary-strong);box-shadow:0 10px 30px rgba(0,0,0,.25);}
.btn-c--onDark:hover{background:var(--cl-primary-soft);border-color:var(--cl-primary-soft);color:var(--cl-primary-strong);transform:translateY(-2px);}
.btn-c--lg{height:48px;padding:0 26px;font-size:16px;}
@media (max-width:575.98px){.btn-c{height:48px;}}

/* ---------- 页头横幅 ---------- */
.page-hero-wrap{padding-top:10px;}
.page-hero{
  position:relative;
  overflow:hidden;
  min-height:260px;
  padding:54px 48px 56px;
  border-radius:var(--r-panel);
  background-image:linear-gradient(100deg,rgba(18,49,46,.94) 0%,rgba(18,49,46,.78) 46%,rgba(18,49,46,.42) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
}
.hero-inner{position:relative;max-width:720px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#DDF1EE;
  font-size:13px;font-weight:600;
  margin-bottom:18px;
}
.page-hero h1{
  color:#fff;
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  max-width:660px;
}
.hero-lead{
  margin-top:18px;
  max-width:620px;
  color:rgba(226,240,237,.86);
  font-size:16.5px;
  line-height:1.8;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
@media (max-width:767.98px){
  .page-hero{padding:36px 24px 40px;}
  .hero-lead{font-size:15.5px;}
}

/* ---------- 指标条 ---------- */
.metrics-row{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-top:24px;
}
@media (min-width:768px){.metrics-row{grid-template-columns:repeat(3,1fr);}}
.metric-card{
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow 200ms ease,transform 200ms ease,border-color 200ms ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--cl-primary-line);}
.metric-card__num{
  font-size:26px;font-weight:700;color:var(--cl-ink);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.metric-card__label{font-size:14px;color:var(--cl-muted);margin-top:4px;line-height:1.7;}

/* ---------- 筛选胶囊 ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--cl-line);
  background:#fff;
  color:var(--cl-body);
  font-size:14px;font-weight:500;
  transition:background 180ms ease,color 180ms ease,border-color 180ms ease,transform 180ms ease;
}
.chip i{font-size:13px;color:var(--cl-muted);transition:color 180ms ease;}
.chip:hover{background:var(--cl-primary-soft);border-color:var(--cl-primary-line);color:var(--cl-primary);transform:translateY(-1px);}
.chip:hover i{color:var(--cl-primary);}
.chip.is-active{background:var(--cl-primary);border-color:var(--cl-primary);color:#fff;}
.chip.is-active i{color:#fff;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sp-section) 0;}
.section--tight{padding-top:56px;padding-bottom:56px;}
.section-head{max-width:780px;margin-bottom:40px;}
.eyebrow{
  display:inline-block;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--cl-primary-soft);
  color:var(--cl-primary);
  font-size:13px;
  font-weight:600;
  line-height:1.6;
  margin-bottom:14px;
}
.section-title{font-size:clamp(24px,3vw,32px);line-height:1.35;}
.section-desc{margin-top:14px;font-size:16px;color:var(--cl-body);}

/* ---------- 功能卡片 ---------- */
.feature-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:992px){.feature-grid{grid-template-columns:repeat(2,1fr);gap:28px;}}
.feature-card{
  display:flex;
  flex-direction:column;
  background:var(--cl-surface);
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform 200ms ease,box-shadow 200ms ease,border-color 200ms ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--cl-primary-line);}
.feature-card__media{aspect-ratio:16/9;overflow:hidden;background:var(--cl-primary-soft);}
.feature-card__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.feature-card:hover .feature-card__media img{transform:scale(1.03);}
.feature-card__body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.tag{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--cl-primary-soft);
  color:var(--cl-primary);
  font-size:13px;font-weight:600;
  align-self:flex-start;
}
.tag--accent{background:var(--cl-accent-soft);color:var(--cl-accent);}
.feature-card h3{margin-top:14px;font-size:20px;line-height:1.5;}
.feature-card p{margin-top:10px;font-size:15px;color:var(--cl-body);line-height:1.8;}
.tick-list{margin-top:16px;display:grid;gap:10px;}
.tick-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--cl-body);}
.tick-list i{color:var(--cl-primary);font-size:13px;margin-top:6px;flex-shrink:0;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:20px;
  font-size:15px;font-weight:600;color:var(--cl-primary);
}
.text-link i{font-size:13px;transition:transform 180ms ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- 深色说明带 ---------- */
.deep-band{
  background:var(--cl-surface-deep);
  padding:var(--sp-section) 0;
  border-radius:var(--r-panel);
  margin:0 0 var(--sp-section);
}
.deep-band .eyebrow{background:rgba(255,255,255,.12);color:#9FDCD3;}
.deep-band .section-title{color:#fff;}
.deep-band .section-desc{color:rgba(226,240,237,.76);}
.deep-stats{display:grid;grid-template-columns:1fr;gap:18px;margin-top:34px;}
@media (min-width:768px){.deep-stats{grid-template-columns:repeat(3,1fr);}}
.deep-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
  transition:transform 200ms ease,background 200ms ease;
}
.deep-card:hover{transform:translateY(-3px);background:rgba(255,255,255,.1);}
.deep-card__num{
  font-size:34px;font-weight:700;color:#fff;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.deep-card__label{margin-top:8px;font-size:14.5px;color:rgba(226,240,237,.72);line-height:1.7;}
.deep-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 体验路径 ---------- */
.path-steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.path-steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1200px){.path-steps{grid-template-columns:repeat(4,1fr);}}
.step-card{
  background:#fff;
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform 200ms ease,box-shadow 200ms ease,border-color 200ms ease;
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--cl-primary-line);}
.step-card__num{
  width:36px;height:36px;
  border-radius:12px;
  display:grid;place-items:center;
  background:var(--cl-primary-soft);
  color:var(--cl-primary);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;line-height:1.5;}
.step-card p{margin-top:10px;font-size:15px;color:var(--cl-body);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--cl-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color 200ms ease,box-shadow 200ms ease;
}
.faq-item:hover{border-color:var(--cl-primary-line);box-shadow:var(--sh-2);}
.faq-item.is-open{border-color:var(--cl-primary-line);}
.faq-q{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:20px 24px;
  background:none;
  border:0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--cl-ink);
  cursor:pointer;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--cl-primary);
  opacity:0;
  transition:opacity 180ms ease;
}
.faq-item.is-open .faq-q::before{opacity:1;}
.faq-q i{color:var(--cl-primary);font-size:14px;flex-shrink:0;}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;color:var(--cl-body);line-height:1.85;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 结尾 CTA ---------- */
.cta-section{padding-bottom:var(--sp-section);}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  background:var(--cl-primary-soft);
  border:1px solid var(--cl-primary-line);
  padding:44px 36px;
  display:grid;
  gap:26px;
  align-items:center;
}
@media (min-width:992px){.cta-inner{grid-template-columns:1.5fr auto;padding:54px 52px;}}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;}
.cta-inner p{margin-top:14px;font-size:16px;color:var(--cl-body);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--cl-surface-deep);
  color:rgba(226,240,237,.74);
  padding:72px 0 28px;
  font-size:15px;
}
.site-footer h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.site-footer p{line-height:1.85;color:rgba(226,240,237,.74);}
.site-footer .brand__text{color:#fff;}
.site-footer .brand__sub{color:rgba(226,240,237,.6);}
.site-footer .brand__mark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:#8FD6CC;}
.foot-links{display:grid;gap:10px;}
.foot-links a{color:rgba(226,240,237,.76);font-size:15px;}
.foot-links a:hover{color:#fff;}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;
  color:rgba(226,240,237,.62);
}
.foot-bottom a{color:rgba(226,240,237,.88);}
.foot-bottom a:hover{color:#fff;}

@media (max-width:767.98px){
  :root{--sp-section:56px;}
  .section-head{margin-bottom:28px;}
  .deep-band{border-radius:var(--r-lg);}
}
@media (min-width:768px) and (max-width:991.98px){
  :root{--sp-section:72px;}
}