/* roulang page: index */
:root{
  --brand:#0E9F8A;
  --brand-dark:#0A7C6C;
  --accent:#E4662B;
  --ink:#12161B;
  --body:#4A4F55;
  --muted:#7C838B;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --surface-2:#EDEBE6;
  --line:#DCD9D2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-y:104px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.2}
h1{font-size:clamp(2.2rem,5vw,3.6rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:1.14rem;font-weight:700}
h4{font-size:1rem;font-weight:700}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:1rem}
.container{max-width:1240px !important;padding-left:32px;padding-right:32px;margin:0 auto}
.row{--bs-gutter-x:32px}
.section{padding:var(--section-y) 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--ink);color:rgba(255,255,255,.78)}
.section--dark h2,.section--dark h3{color:#fff}
.section--alt{background:var(--surface-2)}
.section-head{max-width:760px;margin-bottom:52px}
.section-head--center{max-width:720px;margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--brand);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);display:block}
.section--dark .eyebrow{color:var(--brand)}
.section-head p{color:var(--muted);margin-top:14px;margin-bottom:0}
.section--dark .section-head p{color:rgba(255,255,255,.66)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:999px;font-size:.95rem;font-weight:700;
  border:1px solid transparent;transition:all 220ms var(--ease);
  white-space:nowrap;
}
.btn i{transition:transform 220ms var(--ease);font-size:.82em}
.btn:hover i{transform:translateX(4px)}
.btn-brand{background:var(--brand);color:#08110F}
.btn-brand:hover{background:var(--brand-dark);color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000;color:#fff}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.32);color:#fff}
.btn-ghost-light:hover{border-color:var(--brand);color:var(--brand)}
.btn-block{width:100%}
.btn-sm{padding:10px 20px;font-size:.88rem}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background 280ms var(--ease),box-shadow 280ms var(--ease);
}
.site-header.is-solid{background:rgba(18,22,27,.96);box-shadow:var(--shadow-md)}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand);
  position:relative;flex-shrink:0;
}
.logo-mark::after{
  content:"";position:absolute;left:7px;right:7px;top:50%;height:2px;
  background:var(--ink);transform:translateY(-50%);border-radius:2px;
}
.logo-mark::before{
  content:"";position:absolute;left:13px;top:7px;bottom:7px;width:2px;
  background:var(--ink);border-radius:2px;opacity:.5;
}
.logo-text{color:#fff;font-weight:800;font-size:1.08rem;letter-spacing:-.01em}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  display:block;padding:9px 14px;border-radius:999px;
  color:rgba(255,255,255,.76);font-size:.94rem;font-weight:500;
  transition:all 200ms var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-link.is-active{background:var(--brand);color:#08110F;font-weight:700}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.18);
  transition:all 200ms var(--ease);
}
.icon-btn:hover{color:#fff;border-color:var(--brand);background:rgba(14,159,138,.16)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform 200ms var(--ease),opacity 200ms var(--ease)}
.mobile-drawer{
  position:fixed;inset:0;z-index:1050;background:rgba(18,22,27,.98);
  transform:translateX(100%);transition:transform 320ms var(--ease);
  display:flex;flex-direction:column;padding:24px 24px 32px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.mobile-drawer__close{width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.2);color:#fff;display:flex;align-items:center;justify-content:center}
.mobile-drawer a.m-link{
  display:flex;align-items:center;height:52px;color:rgba(255,255,255,.82);
  border-bottom:1px solid rgba(255,255,255,.08);font-size:1rem;font-weight:500;
}
.mobile-drawer a.m-link.is-active{color:var(--brand);font-weight:700}
.mobile-drawer__cta{margin-top:auto;padding-top:24px}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:168px 0 96px;
  background-color:var(--ink);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:rgba(255,255,255,.78);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:rgba(12,16,20,.78);
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy{max-width:620px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;
  background:rgba(14,159,138,.16);border:1px solid rgba(14,159,138,.4);
  color:var(--brand);font-size:.8rem;font-weight:700;letter-spacing:.04em;margin-bottom:22px;
}
.hero-badge i{font-size:.72rem}
.hero h1{color:#fff;margin-bottom:22px}
.hero h1 .hl{color:var(--brand)}
.hero-sub{font-size:1.06rem;color:rgba(255,255,255,.7);max-width:560px;margin-bottom:34px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.12)}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:5/4}
.hero-visual__tag{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(18,22,27,.72);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-md);
  padding:14px 18px;display:flex;align-items:center;gap:14px;
}
.hero-visual__tag strong{color:var(--brand);font-size:1.5rem;font-weight:800;letter-spacing:-.02em;line-height:1}
.hero-visual__tag span{font-size:.84rem;color:rgba(255,255,255,.72);line-height:1.5}
.hero-stats{
  margin-top:64px;background:rgba(246,245,242,.94);
  border-radius:var(--radius-lg);border-top:3px solid var(--brand);
  box-shadow:var(--shadow-md);overflow:hidden;
}
.hero-stats__grid{display:grid;grid-template-columns:repeat(3,1fr)}
.stat{padding:26px 30px;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat__num{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1.1}
.stat__num small{font-size:.5em;font-weight:700;color:var(--brand);margin-left:4px}
.stat__label{font-size:.86rem;color:var(--muted);margin-top:6px;line-height:1.6}

/* ---------- 价值主张 ---------- */
.value-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:start}
.value-lead h2{margin-bottom:18px}
.value-lead p{color:var(--body)}
.value-list{display:flex;flex-direction:column;gap:16px}
.value-item{
  display:flex;gap:18px;padding:24px 26px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);transition:all 260ms var(--ease);
}
.value-item:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md)}
.value-item__idx{
  flex-shrink:0;width:42px;height:42px;border-radius:var(--radius-sm);
  background:var(--surface-2);color:var(--ink);font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:.95rem;
}
.value-item h3{margin-bottom:8px}
.value-item p{margin:0;font-size:.93rem;color:var(--muted)}

/* ---------- 功能分组 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.feature-row + .feature-row{margin-top:88px}
.feature-row:nth-child(even) .feature-media{order:2}
.feature-media{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-md);background:var(--surface)}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature-body h3{font-size:clamp(1.3rem,2vw,1.6rem);margin-bottom:14px}
.feature-body > p{color:var(--muted);margin-bottom:22px}
.feature-points{display:flex;flex-direction:column;gap:14px}
.feature-points li{display:flex;gap:12px;align-items:flex-start;font-size:.95rem}
.feature-points i{color:var(--brand);font-size:1.05rem;margin-top:5px;flex-shrink:0}
.feature-points strong{color:var(--ink);font-weight:700}

/* ---------- 使用场景 横滚 ---------- */
.hscroll-wrap{position:relative;margin:0 -32px;padding:0 32px}
.hscroll{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;
}
.hscroll::-webkit-scrollbar{height:6px}
.hscroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.hscroll::-webkit-scrollbar-track{background:transparent}
.scene-card{
  flex:0 0 calc((100% - 72px)/4);min-width:250px;scroll-snap-align:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all 260ms var(--ease);
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-card__body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column;gap:10px}
.scene-card h3{font-size:1.05rem}
.scene-card p{margin:0;font-size:.9rem;color:var(--muted)}
.scene-card__tag{
  display:inline-flex;align-self:flex-start;padding:4px 12px;border-radius:999px;
  background:var(--surface-2);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;
}

/* ---------- 成功案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:26px}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:all 260ms var(--ease);
}
.case-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md)}
.case-card--wide img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-card--small{flex-direction:row;align-items:stretch}
.case-card--small img{width:38%;object-fit:cover;aspect-ratio:auto}
.case-card__body{padding:26px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-card__metrics{display:flex;gap:28px;flex-wrap:wrap;margin:6px 0 2px}
.case-metric strong{display:block;font-size:1.6rem;font-weight:800;color:var(--brand);letter-spacing:-.02em;line-height:1.1}
.case-metric span{font-size:.8rem;color:var(--muted)}
.case-tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  display:inline-flex;padding:4px 12px;border-radius:999px;background:var(--surface-2);
  color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.case-link{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:700;color:var(--brand);margin-top:auto}
.case-link i{transition:transform 220ms var(--ease)}
.case-link:hover i{transform:translateX(4px)}

/* ---------- 资讯卡片 ---------- */
.news-card{
  height:100%;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;transition:all 260ms var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md)}
.news-card__thumb{display:block;overflow:hidden}
.news-card__thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms var(--ease)}
.news-card:hover .news-card__thumb img{transform:scale(1.04)}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__title{font-size:1.05rem;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-card__title a:hover{color:var(--brand)}
.news-card__excerpt{
  margin:0;font-size:.9rem;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:.82rem;color:var(--muted);
}
.badge-soft{
  display:inline-flex;padding:4px 12px;border-radius:10px;background:var(--surface-2);
  color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;
}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-lg);
  padding:60px 24px;text-align:center;background:var(--surface);
}
.empty-state i{font-size:1.8rem;color:var(--brand);margin-bottom:14px;display:block}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:stretch}
.price-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:34px 30px 30px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;transition:all 260ms var(--ease);
}
.price-card:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md)}
.price-card--featured{border:2px solid var(--accent);box-shadow:var(--shadow-md)}
.price-card__flag{
  position:absolute;top:-13px;left:30px;padding:5px 14px;border-radius:999px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.price-card h3{font-size:1.15rem;margin-bottom:8px}
.price-card__desc{font-size:.88rem;color:var(--muted);margin-bottom:20px;min-height:44px}
.price-num{display:flex;align-items:baseline;gap:6px;margin-bottom:6px}
.price-num strong{font-size:clamp(2.1rem,3.4vw,2.8rem);font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1}
.price-num span{font-size:.86rem;color:var(--muted)}
.price-unit{font-size:.82rem;color:var(--muted);margin-bottom:22px}
.price-features{display:flex;flex-direction:column;gap:0;margin-bottom:26px}
.price-features li{
  display:flex;gap:10px;align-items:flex-start;font-size:.9rem;
  padding:11px 0;border-bottom:1px dashed var(--line);
}
.price-features li:last-child{border-bottom:none}
.price-features i{color:var(--brand);margin-top:5px;font-size:.86rem;flex-shrink:0}
.price-card .btn{margin-top:auto}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:8px 28px;box-shadow:var(--shadow-sm)}
.faq-item{border-bottom:1px solid var(--line);position:relative;transition:padding 200ms var(--ease)}
.faq-item:last-child{border-bottom:none}
.faq-item.is-open{padding-left:16px}
.faq-item.is-open::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;background:var(--brand)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:1rem;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand-dark)}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform 180ms var(--ease),background 180ms var(--ease);font-size:.8rem;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand);color:#08110F;border-color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 320ms var(--ease)}
.faq-a__inner{padding:0 44px 24px 0;font-size:.94rem;color:var(--body);line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--radius-lg);padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.3vw,1.9rem);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.66);margin:0;max-width:560px}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 订阅表单 ---------- */
.form-note{font-size:.82rem;color:var(--muted);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.6);position:relative;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:0;
  padding:76px 0 46px;
}
.footer-col{padding:0 34px;border-right:1px solid rgba(255,255,255,.08)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:none;padding-right:0}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-logo .logo-text{color:#fff}
.footer-col p{font-size:.88rem;line-height:1.8;color:rgba(255,255,255,.55);margin-bottom:0}
.footer-title{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:20px;letter-spacing:.01em}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:.88rem;color:rgba(255,255,255,.6);display:inline-flex;align-items:center;gap:8px;width:fit-content;position:relative}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform 260ms var(--ease);
}
.footer-links a:hover{color:#fff}
.footer-links a:hover::after{transform:scaleX(1)}
.footer-contact{display:flex;flex-direction:column;gap:14px;font-size:.88rem}
.footer-contact span{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.6)}
.footer-contact i{color:var(--brand);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:24px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:.82rem;color:rgba(255,255,255,.42);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
.hero-copy > *{opacity:0;transform:translateY(12px);animation:heroUp 620ms var(--ease) forwards}
.hero-copy > *:nth-child(1){animation-delay:60ms}
.hero-copy > *:nth-child(2){animation-delay:120ms}
.hero-copy > *:nth-child(3){animation-delay:180ms}
.hero-copy > *:nth-child(4){animation-delay:240ms}
@keyframes heroUp{to{opacity:1;transform:none}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  .hero-copy > *{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .container{max-width:1140px !important}
}
@media (max-width:1199.98px){
  :root{--section-y:88px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-copy{max-width:100%}
  .value-grid{grid-template-columns:1fr;gap:40px}
  .scene-card{flex:0 0 calc((100% - 48px)/3)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px 0;padding:60px 0 36px}
  .footer-col{padding:0 26px}
  .footer-col:nth-child(2){border-right:none}
  .footer-col:nth-child(3){padding-left:0}
}
@media (max-width:991.98px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-actions .icon-btn{display:none}
  .nav-actions .btn{display:none}
  .hero{padding:140px 0 72px}
  .feature-row{grid-template-columns:1fr;gap:32px}
  .feature-row:nth-child(even) .feature-media{order:0}
  .feature-row + .feature-row{margin-top:64px}
  .case-grid{grid-template-columns:1fr}
  .case-card--small{flex-direction:column}
  .case-card--small img{width:100%;aspect-ratio:16/9}
  .price-grid{grid-template-columns:1fr;gap:22px;max-width:560px;margin:0 auto}
  .cta-band{padding:40px 32px;flex-direction:column;align-items:flex-start}
  .hero-stats__grid{grid-template-columns:1fr}
  .stat{border-right:none;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:none}
  .scene-card{flex:0 0 calc((100% - 24px)/2)}
  .news-card__body{padding:20px}
}
@media (max-width:767.98px){
  :root{--section-y:64px}
  .container{padding-left:20px;padding-right:20px}
  .row{--bs-gutter-x:20px}
  .hscroll-wrap{margin:0 -20px;padding:0 20px}
  .scene-card{flex:0 0 78%;min-width:0}
  .hero{padding:126px 0 60px}
  .hero-stats{margin-top:44px}
  .stat{padding:20px 22px}
  .section-head{margin-bottom:36px}
  .faq-list{padding:4px 20px}
  .faq-a__inner{padding-right:12px}
  .footer-grid{grid-template-columns:1fr;gap:36px;padding:52px 0 30px}
  .footer-col{padding:0;border-right:none}
  .footer-col + .footer-col{border-top:1px solid rgba(255,255,255,.08);padding-top:36px}
  .cta-band{padding:34px 24px}
  .value-item{padding:20px}
  .feature-media img{aspect-ratio:16/10}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .hero h1{font-size:clamp(1.85rem,7.4vw,2.4rem)}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .cta-band__actions{width:100%;flex-direction:column}
  .cta-band__actions .btn{width:100%}
  .stat__num{font-size:1.7rem}
  .price-card{padding:28px 22px 24px}
}

/* roulang page: article */
:root{
  --brand:#0E9F8A; --brand-dark:#0A7C6C; --accent:#E4662B;
  --ink:#12161B; --body:#4A4F55; --muted:#7C838B;
  --bg:#F6F5F2; --surface:#FFFFFF; --surface-2:#EDEBE6; --line:#DCD9D2;
  --radius-lg:16px; --radius-md:12px; --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-y:104px; --sec-y-m:60px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px; line-height:1.8; font-weight:400; -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.02em;margin:0;line-height:1.28;font-weight:750}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.container{width:100%;padding-right:20px;padding-left:20px;margin:0 auto;max-width:1140px}
@media(min-width:1400px){.container{max-width:1240px}}
@media(min-width:768px){.container{padding-right:32px;padding-left:32px}}
.section{padding:var(--sec-y) 0}
@media(max-width:991px){.section{padding:var(--sec-y-m) 0}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);text-transform:none;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:14px}
.sec-head p{color:var(--muted);margin:0}
.lead{font-size:17.5px;color:var(--body)}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 6px 24px rgba(18,22,27,.14);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(18,22,27,.96);box-shadow:var(--shadow-md);border-color:rgba(255,255,255,.08)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:26px;height:26px;border-radius:8px;background:var(--brand);position:relative;box-shadow:0 0 0 3px rgba(14,159,138,.18)}
.logo-mark::after{content:"";position:absolute;inset:7px 5px;border-radius:2px;background:var(--accent)}
.logo-text{color:#fff;font-weight:800;font-size:18px;letter-spacing:-.02em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{color:rgba(255,255,255,.78);font-size:15px;font-weight:500;padding:9px 13px;border-radius:999px;position:relative;transition:color .18s var(--ease),background .18s var(--ease)}
.nav-link::after{content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;background:rgba(14,159,138,.18)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{width:38px;height:38px;border-radius:999px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .18s var(--ease)}
.icon-btn:hover{background:rgba(255,255,255,.16);border-color:var(--brand);color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:650;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:all .22s var(--ease);text-align:center;line-height:1.2}
.btn i{transition:transform .22s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-brand{background:var(--brand);color:#08211D;padding:13px 26px;font-size:15.5px}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:#fff;padding:13px 26px;font-size:15.5px}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(14,159,138,.06)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink);padding:13px 26px;font-size:15.5px}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn-dark{background:var(--ink);color:#fff;padding:13px 26px;font-size:15.5px}
.btn-dark:hover{background:#000;color:#fff;box-shadow:var(--shadow-md)}
.btn-full{width:100%}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .28s var(--ease),opacity .2s var(--ease)}
@media(max-width:1199px){
  .nav-menu{gap:2px}
  .nav-link{padding:8px 10px;font-size:14.5px}
}
@media(max-width:991px){
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(18,22,27,.98);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    padding:16px 20px 120px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .24s var(--ease),transform .24s var(--ease);
    margin-left:0;
  }
  .site-header.nav-open .nav-menu{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-link{height:52px;display:flex;align-items:center;border-radius:12px;font-size:16px;color:rgba(255,255,255,.86)}
  .nav-link::after{display:none}
  .site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
  .site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-actions .btn-brand{display:none}
}

/* ---------- article masthead ---------- */
.article-masthead{
  position:relative;color:#fff;padding:150px 0 72px;
  background-image:linear-gradient(180deg,rgba(18,22,27,.86),rgba(18,22,27,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.article-masthead::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .now{color:rgba(255,255,255,.55);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.masthead-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(14,159,138,.2);border:1px solid rgba(14,159,138,.42);color:#8FE7D6;font-size:12.5px;font-weight:700;letter-spacing:.04em;padding:6px 13px;border-radius:999px;margin-bottom:18px}
.article-masthead h1{color:#fff;font-size:clamp(1.75rem,3.6vw,2.85rem);max-width:900px;margin-bottom:24px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:rgba(255,255,255,.68)}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row i{color:var(--brand)}
@media(max-width:767px){
  .article-masthead{padding:124px 0 52px}
  .crumb .now{display:none}
}

/* ---------- article body ---------- */
.article-wrap{padding:64px 0 96px}
@media(max-width:767px){.article-wrap{padding:44px 0 64px}}
.read-col{max-width:760px;margin:0 auto}
.cover-fig{margin:0 0 40px}
.cover-fig img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.cover-fig figcaption{font-size:13.5px;color:var(--muted);margin-top:12px;text-align:center}
.article-body{font-size:17px;line-height:1.85;color:var(--body)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:clamp(1.3rem,2.1vw,1.65rem);margin:52px 0 20px;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;border-radius:3px;background:var(--brand)}
.article-body h3{font-size:1.16rem;margin:34px 0 14px;font-weight:700}
.article-body h4{font-size:1rem;margin:26px 0 12px;font-weight:700;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:0;list-style:none}
.article-body ul li,.article-body ol li{position:relative;padding-left:28px;margin-bottom:12px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;
  background:transparent;border:2px solid var(--brand);transform:rotate(45deg);
}
.article-body ol{counter-reset:olc}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.34em;
  width:20px;height:20px;border-radius:6px;background:var(--surface-2);color:var(--brand-dark);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:28px 0;padding:22px 26px;background:var(--surface);
  border-left:3px solid var(--accent);border-radius:0 var(--radius-md) var(--radius-md) 0;
  box-shadow:var(--shadow-sm);color:var(--ink);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  background:var(--surface-2);color:#0A5F53;padding:2px 7px;border-radius:6px;
  font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--ink);color:#D8E6E2;padding:20px 22px;border-radius:var(--radius-md);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 24px;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body figure{margin:28px 0}
.article-body figure img{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);width:100%}
.article-body figcaption{font-size:13.5px;color:var(--muted);margin-top:10px;text-align:center}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.table-scroll{overflow-x:auto;margin:0 0 26px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface)}
.table-scroll table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px}
.table-scroll th{
  background:var(--ink);color:#fff;font-weight:650;text-align:left;padding:13px 16px;white-space:nowrap;
}
.table-scroll td{padding:12px 16px;border-top:1px solid var(--line);color:var(--body)}
.table-scroll tbody tr:nth-child(even){background:#FAF9F7}
.article-body a{color:var(--brand-dark);border-bottom:1px solid rgba(14,159,138,.35)}
.article-body a:hover{color:var(--brand);border-bottom-color:var(--brand)}
.empty-article{
  border:1px dashed var(--line);border-radius:var(--radius-lg);background:var(--surface);
  padding:56px 28px;text-align:center;
}
.empty-article i{font-size:30px;color:var(--muted);margin-bottom:16px;display:block}
.empty-article p{margin-bottom:22px;color:var(--muted)}

/* ---------- footer of article ---------- */
.article-foot{margin-top:52px;padding-top:32px;border-top:1px solid var(--line)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--surface-2);color:var(--ink);font-size:12.5px;font-weight:700;letter-spacing:.04em;padding:7px 13px;border-radius:var(--radius-sm)}
.tag:hover{background:var(--brand);color:#08211D}
.share-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}
.share-row .label{font-size:14px;font-weight:600;color:var(--ink)}
.share-icons{display:flex;gap:10px}
.share-icons a{width:38px;height:38px;border-radius:999px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--body)}
.share-icons a:hover{border-color:var(--brand);color:var(--brand);background:rgba(14,159,138,.06)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px}
@media(max-width:767px){.pager{grid-template-columns:1fr}}
.pager a{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:20px 22px;box-shadow:var(--shadow-sm);transition:all .22s var(--ease);
}
.pager a:hover{border-color:var(--brand);box-shadow:var(--shadow-md);transform:translateY(-3px);color:inherit}
.pager .k{font-size:12.5px;font-weight:700;letter-spacing:.06em;color:var(--brand);display:block;margin-bottom:8px}
.pager .t{font-size:15.5px;font-weight:650;color:var(--ink);line-height:1.5}
.pager .next{text-align:right}
.back-row{margin-top:26px;text-align:center}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:991px){.card-grid{grid-template-columns:repeat(2,1fr);gap:22px}}
@media(max-width:575px){.card-grid{grid-template-columns:1fr}}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease)}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .body{padding:24px 24px 22px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card p{font-size:14.5px;color:var(--muted);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.badge-soft{background:var(--surface-2);color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;padding:5px 11px;border-radius:var(--radius-sm)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative;transition:background .2s var(--ease)}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);transform:scaleY(0);transform-origin:top;transition:transform .18s var(--ease)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;padding:22px 46px 22px 18px;
  font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;position:relative;line-height:1.6;
}
.faq-q .ic{
  position:absolute;right:16px;top:50%;transform:translateY(-50%);width:22px;height:22px;
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:15px;
  transition:transform .18s var(--ease);
}
.faq-item.open .faq-q .ic{transform:translateY(-50%) rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-a p{padding:0 46px 24px 18px;margin:0;color:var(--body);font-size:15.5px;line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--radius-lg);padding:52px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.cta-band h2{color:#fff;font-size:clamp(1.35rem,2.2vw,1.85rem);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.68);margin:0;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:767px){.cta-band{padding:36px 24px}}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);position:relative;padding-top:4px}
.site-footer::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent))}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 44px}
.footer-col{position:relative}
.footer-col+.footer-col{padding-left:36px;border-left:1px solid rgba(255,255,255,.09)}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .logo-text{font-size:17px}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.6);margin:0;line-height:1.8}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:13px;font-size:14.5px;color:rgba(255,255,255,.66)}
.footer-contact i{color:var(--brand);width:18px}
.footer-contact a{color:rgba(255,255,255,.8);border-bottom:1px solid rgba(255,255,255,.2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;font-size:13.5px;color:rgba(255,255,255,.5);
}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .footer-col+.footer-col{padding-left:0;border-left:0}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr}
}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#0E9F8A; --brand-dark:#0A7C6C; --accent:#E4662B;
  --ink:#12161B; --body:#4A4F55; --muted:#7C838B;
  --bg:#F6F5F2; --surface:#FFFFFF; --surface-2:#EDEBE6; --line:#DCD9D2;
  --radius-lg:16px; --radius-md:12px; --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-gutter-x:32px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.8;font-weight:400;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.28;margin:0 0 16px}
h1{font-size:clamp(1.9rem,3.8vw,2.9rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem)}
h3{font-size:clamp(1.05rem,1.5vw,1.24rem);font-weight:700}
h4{font-size:1rem;font-weight:700}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding-left:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;padding-right:var(--bs-gutter-x);padding-left:var(--bs-gutter-x);margin-right:auto;margin-left:auto;max-width:1140px}
@media (min-width:1400px){.container{max-width:1240px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;border-radius:999px;
  padding:12px 22px;border:1px solid transparent;transition:all .22s var(--ease);text-align:center;line-height:1.2;cursor:pointer}
.btn i{transition:transform .22s var(--ease);font-size:.92em}
.btn:hover i{transform:translateX(4px)}
.btn-brand{background:var(--brand);color:#08110F;box-shadow:var(--shadow-sm)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000;color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-light-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.34)}
.btn-light-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%;justify-content:center}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 2px 12px rgba(18,22,27,.14);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-solid{background:rgba(18,22,27,.96);box-shadow:var(--shadow-md)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;letter-spacing:-.02em}
.logo:hover{color:#fff}
.logo-mark{width:22px;height:22px;border-radius:7px;background:var(--brand);position:relative;flex:0 0 22px}
.logo-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:#08110F;opacity:.85}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-link{position:relative;display:inline-flex;align-items:center;padding:8px 13px;border-radius:999px;
  font-size:15px;font-weight:500;color:rgba(255,255,255,.82);white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.is-active{color:#fff;background:rgba(14,159,138,.24)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;transition:all .2s var(--ease)}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .24s var(--ease),opacity .24s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero ---------- */
.page-hero{position:relative;background:var(--ink) url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(18,22,27,.82)}
.page-hero .container{position:relative;z-index:2}
.hero-pad{padding:150px 0 76px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-size:10px;opacity:.6}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(14,159,138,.16);border:1px solid rgba(14,159,138,.4);color:#7FE3D2;
  font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:18px}
.page-hero h1{color:#fff;max-width:840px;margin-bottom:18px}
.page-hero .lead{color:rgba(255,255,255,.78);font-size:17px;max-width:720px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-thumb{margin-top:34px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-lg)}
.hero-thumb img{width:100%;aspect-ratio:21/8;object-fit:cover}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-alt{background:var(--surface-2)}
.section-dark{background:var(--ink);color:rgba(255,255,255,.76)}
.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .kicker{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.06em;color:var(--brand);margin-bottom:10px}
.section-dark .kicker{color:#7FE3D2}
.section-head p{margin-bottom:0}

/* ---------- 图文交替 ---------- */
.split-row{align-items:center;margin-bottom:56px}
.split-row:last-child{margin-bottom:0}
.split-figure{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--surface)}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-body h3{margin-bottom:12px}
.split-body p{color:var(--body)}

/* ---------- 要点列表 ---------- */
.point-list li{position:relative;padding-left:32px;margin-bottom:14px;line-height:1.75}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:6px;color:var(--brand);
  background:rgba(14,159,138,.12);display:flex;align-items:center;justify-content:center}
.section-dark .point-list li{color:rgba(255,255,255,.76)}
.section-dark .point-list li::before{background:rgba(14,159,138,.22);color:#7FE3D2}

/* ---------- 数据条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:0;background:var(--surface);
  border:1px solid var(--line);border-top:3px solid var(--brand);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);overflow:hidden}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1.1}
.stat-num span{font-size:.5em;font-weight:700;color:var(--brand);margin-left:4px}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- 卡片 ---------- */
.card-tile{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);height:100%;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.card-tile .tile-icon{width:44px;height:44px;border-radius:12px;background:rgba(14,159,138,.12);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.card-tile h3{margin-bottom:10px}
.card-tile p{margin-bottom:0;font-size:15px;color:var(--muted)}
.badge-soft{display:inline-block;background:var(--surface-2);color:var(--ink);font-size:12px;font-weight:700;
  letter-spacing:.04em;padding:5px 11px;border-radius:8px}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0!important}
.faq-accordion .accordion-button{background:transparent;box-shadow:none;color:var(--ink);font-weight:600;font-size:17px;
  padding:22px 44px 22px 16px;border-radius:0!important;position:relative}
.faq-accordion .accordion-button::after{display:none}
.faq-accordion .accordion-button .faq-sign{position:absolute;right:12px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--ink);transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease)}
.faq-accordion .accordion-button:not(.collapsed){color:var(--ink);background:rgba(14,159,138,.05)}
.faq-accordion .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  border-radius:2px;background:var(--brand)}
.faq-accordion .accordion-button:not(.collapsed) .faq-sign{transform:translateY(-50%) rotate(180deg);background:var(--brand);color:#fff;border-color:var(--brand)}
.faq-accordion .accordion-body{padding:0 44px 24px 16px;color:var(--body);line-height:1.8;font-size:16px}

/* ---------- CTA ---------- */
.cta-band{background:var(--ink);color:rgba(255,255,255,.76);border-radius:var(--radius-lg);
  padding:44px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(14,159,138,.35)}
.cta-band h2{color:#fff;margin-bottom:8px}
.cta-band p{margin-bottom:0;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.62);position:relative;margin-top:96px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent))}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:0;padding:64px 0 40px}
.footer-col{padding:0 28px;border-right:1px solid rgba(255,255,255,.08)}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:16px}
.footer-col p{font-size:15px;line-height:1.8;margin-bottom:0}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(255,255,255,.62);font-size:15px}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:15px}
.footer-contact i{color:var(--brand);margin-right:8px}
.footer-contact a{color:rgba(255,255,255,.62)}
.footer-contact a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:10px;font-size:14px;color:rgba(255,255,255,.48)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0}
  .footer-col:nth-child(2){border-right:0}
  .footer-col:nth-child(3){padding-left:0}
  .footer-col:nth-child(4){padding-right:0}
}
@media (max-width:991.98px){
  :root{--bs-gutter-x:24px}
  .nav-toggle{display:flex}
  .nav-menu{position:fixed;top:72px;left:0;right:0;bottom:0;background:#12161B;flex-direction:column;
    align-items:stretch;gap:4px;padding:18px 20px 40px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s var(--ease);z-index:1039}
  .nav-menu.is-open{transform:translateX(0)}
  .nav-link{height:52px;border-radius:12px;font-size:16px;padding:0 16px}
  .section{padding:72px 0}
  .hero-pad{padding:130px 0 64px}
  .split-row{margin-bottom:44px}
  .cta-band{padding:34px 26px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:56px 0}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .hero-thumb img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 32px;gap:32px 0}
  .footer-col{padding:0;border-right:0;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:28px}
  .footer-col:last-child{border-bottom:0;padding-bottom:0}
  .page-hero h1{font-size:clamp(1.7rem,7vw,2.2rem)}
}
@media (max-width:575.98px){
  :root{--bs-gutter-x:20px}
  .hero-actions .btn{width:100%;justify-content:center}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%;justify-content:center}
  .card-tile{padding:22px}
}

/* roulang page: category2 */
:root{
  --brand:#0E9F8A;
  --brand-dark:#0A7C6C;
  --accent:#E4662B;
  --ink:#12161B;
  --body:#4A4F55;
  --muted:#7C838B;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --surface-2:#EDEBE6;
  --line:#DCD9D2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-gutter-x:32px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0 0 18px;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.24;}
h1{font-size:clamp(2.2rem,5vw,3.6rem);}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
h3{font-size:1.15rem;font-weight:700;}
h4{font-size:1rem;font-weight:700;}
p{margin:0 0 18px;}
ul,ol{margin:0 0 18px;padding-left:1.2em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1240px;}}

.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head p{color:var(--muted);font-size:1rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--brand-dark);background:rgba(14,159,138,.1);
  border:1px solid rgba(14,159,138,.22);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.eyebrow.on-dark{color:#7FE3D5;background:rgba(14,159,138,.18);border-color:rgba(127,227,213,.3);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  font-size:.95rem;font-weight:600;line-height:1;border-radius:999px;
  padding:14px 26px;border:1px solid transparent;cursor:pointer;
  transition:all 220ms var(--ease);text-decoration:none;}
.btn i{transition:transform 220ms var(--ease);font-size:.85em;}
.btn:hover i{transform:translateX(4px);}
.btn-brand{background:var(--brand);color:var(--ink);border-color:var(--brand);}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}
.btn-ink{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-ink:hover{background:#000;border-color:#000;color:#fff;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark);}
.btn-ghost.on-dark{color:#fff;border-color:rgba(255,255,255,.32);}
.btn-ghost.on-dark:hover{border-color:var(--brand);color:#7FE3D5;}
.btn-sm{padding:10px 18px;font-size:.85rem;}
.btn-block{width:100%;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 2px 18px rgba(18,22,27,.18);
  transition:background 280ms var(--ease),box-shadow 280ms var(--ease),border-color 280ms var(--ease);
}
.site-header.is-scrolled{background:rgba(18,22,27,.96);box-shadow:var(--shadow-md);border-bottom-color:rgba(255,255,255,.06);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;letter-spacing:-.01em;}
.logo:hover{color:#fff;}
.logo-mark{position:relative;width:26px;height:26px;border-radius:8px;background:var(--brand);flex:0 0 auto;}
.logo-mark::before,.logo-mark::after{content:"";position:absolute;background:#0B1220;border-radius:2px;}
.logo-mark::before{width:2px;height:10px;left:8px;top:8px;box-shadow:5px 0 0 #0B1220,10px 0 0 #0B1220;}
.logo-mark::after{width:2px;height:6px;left:8px;top:10px;background:rgba(11,18,32,.5);}
.logo-text{font-size:1.06rem;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-link{position:relative;display:inline-block;padding:8px 12px;font-size:.94rem;font-weight:500;color:rgba(255,255,255,.82);border-radius:var(--radius-sm);}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform 280ms var(--ease);}
.nav-link:hover{color:#fff;}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:#fff;font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{width:38px;height:38px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;cursor:pointer;transition:all 200ms var(--ease);}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-sm);background:transparent;padding:9px 8px;cursor:pointer;}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px;margin:0 auto;transition:all 240ms var(--ease);}
.nav-toggle span+span{margin-top:5px;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 内页 Hero ---------- */
.cat-hero{
  position:relative;padding:150px 0 78px;color:#fff;
  background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(18,22,27,.86) 0%,rgba(18,22,27,.78) 55%,rgba(18,22,27,.92) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.cat-hero h1{color:#fff;max-width:20em;}
.cat-hero p.lead{color:rgba(255,255,255,.82);font-size:1.06rem;max-width:660px;margin-bottom:26px;}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.85rem;color:rgba(255,255,255,.6);margin-bottom:20px;}
.breadcrumb-nav a{color:rgba(255,255,255,.78);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav .sep{opacity:.5;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{margin-top:44px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:var(--shadow-lg);}
.hero-figure img{width:100%;height:auto;}

/* ---------- 指标条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;
  border-top:3px solid var(--brand);box-shadow:var(--shadow-sm);
}
.metric-item{background:var(--surface);padding:26px 24px;}
.metric-num{font-size:1.9rem;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;}
.metric-num span{font-size:.95rem;font-weight:700;color:var(--brand-dark);margin-left:4px;}
.metric-label{font-size:.85rem;color:var(--muted);margin-top:8px;}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.tile{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform 280ms var(--ease),box-shadow 280ms var(--ease),border-color 280ms var(--ease);
}
.tile:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md);}
.tile-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.tile-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease);}
.tile:hover .tile-thumb img{transform:scale(1.04);}
.tile-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.tile-tag{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--ink);background:var(--surface-2);border-radius:var(--radius-sm);padding:4px 10px;margin-bottom:14px;align-self:flex-start;}
.tile h3{margin-bottom:10px;font-size:1.12rem;}
.tile p{font-size:.94rem;color:var(--muted);margin-bottom:18px;}
.tile-link{margin-top:auto;font-size:.9rem;font-weight:700;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px;}
.tile-link i{transition:transform 220ms var(--ease);font-size:.8em;}
.tile:hover .tile-link i{transform:translateX(4px);}

/* ---------- 损耗分析区 ---------- */
.loss-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:32px;align-items:start;}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-sm);}
.bar-row{margin-bottom:22px;}
.bar-row:last-child{margin-bottom:0;}
.bar-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;font-size:.94rem;font-weight:600;color:var(--ink);margin-bottom:8px;}
.bar-head span:last-child{font-weight:800;color:var(--accent);font-size:.95rem;}
.bar-track{height:8px;border-radius:999px;background:var(--surface-2);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:var(--brand);width:0;transition:width 900ms var(--ease);}
.bar-fill.is-done{width:var(--w);}
.priority-card{background:var(--ink);color:rgba(255,255,255,.78);border-radius:var(--radius-lg);padding:30px;border-top:3px solid var(--brand);}
.priority-card h3{color:#fff;margin-bottom:14px;}
.priority-card p{font-size:.93rem;color:rgba(255,255,255,.68);}
.priority-list{list-style:none;padding:0;margin:0;}
.priority-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:.92rem;}
.priority-list li:last-child{border-bottom:0;}
.priority-list i{color:var(--brand);margin-top:5px;}

/* ---------- 场景标签 ---------- */
.scene-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-sm);}
.scene-tags{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.scene-tag{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;color:var(--ink);background:var(--surface-2);border:1px solid transparent;border-radius:999px;padding:9px 16px;transition:all 220ms var(--ease);}
.scene-tag:hover{border-color:var(--brand);color:var(--brand-dark);background:#fff;}
.scene-tag i{color:var(--brand);font-size:.82em;}

/* ---------- 交付物 ---------- */
.deliver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.deliver-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm);transition:transform 280ms var(--ease),border-color 280ms var(--ease),box-shadow 280ms var(--ease);}
.deliver-item:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-md);}
.deliver-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--radius-sm);background:rgba(14,159,138,.12);color:var(--brand-dark);font-weight:800;font-size:.9rem;margin-bottom:16px;}
.deliver-item h3{font-size:1.02rem;margin-bottom:8px;}
.deliver-item p{font-size:.9rem;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0;}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;padding:24px 44px 24px 16px;
  font-size:1.02rem;font-weight:600;color:var(--ink);border-radius:0;position:relative;
  transition:color 200ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-dark);}
.faq-acc .accordion-button::after{display:none;}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--brand);border-radius:2px;opacity:0;transition:opacity 220ms var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-acc .accordion-button:focus{box-shadow:none;}
.faq-icon{position:absolute;right:14px;top:50%;width:16px;height:16px;transform:translateY(-50%);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--muted);border-radius:2px;transition:transform 180ms var(--ease),background 180ms var(--ease);}
.faq-icon::before{left:0;right:0;top:7px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::after{transform:rotate(90deg);}
.faq-acc .accordion-button:not(.collapsed) .faq-icon::before,
.faq-acc .accordion-button:not(.collapsed) .faq-icon::after{background:var(--brand);}
.faq-acc .accordion-body{padding:0 44px 26px 16px;color:var(--body);font-size:.96rem;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--radius-lg);padding:46px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  border-top:3px solid transparent;
  background-image:linear-gradient(var(--ink),var(--ink)),linear-gradient(90deg,var(--brand),var(--accent));
  background-origin:border-box;background-clip:padding-box,border-box;
}
.cta-band h2{color:#fff;margin-bottom:8px;font-size:clamp(1.35rem,2.2vw,1.75rem);}
.cta-band p{color:rgba(255,255,255,.66);margin:0;font-size:.95rem;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink);color:rgba(255,255,255,.7);padding:72px 0 0;margin-top:96px;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--brand),var(--accent));}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:48px;}
.footer-col+.footer-col{border-left:1px solid rgba(255,255,255,.08);padding-left:40px;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:16px;}
.footer-col p{font-size:.9rem;color:rgba(255,255,255,.6);line-height:1.85;}
.footer-title{color:#fff;font-weight:700;font-size:.95rem;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:.9rem;color:rgba(255,255,255,.66);}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:.88rem;color:rgba(255,255,255,.6);}
.footer-contact i{color:var(--brand);width:18px;margin-right:6px;}
.footer-contact a{color:rgba(255,255,255,.78);}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;font-size:.83rem;color:rgba(255,255,255,.5);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  .bar-fill{width:var(--w);}
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .container{max-width:1140px;}
}
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .deliver-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:nth-child(4){border-left:0;padding-left:0;grid-column:1 / -1;border-top:1px solid rgba(255,255,255,.08);padding-top:26px;}
  .footer-col+.footer-col{border-left:0;padding-left:0;}
}
@media (max-width:991px){
  .section{padding:72px 0;}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(15,19,24,.98);padding:16px 20px 96px;overflow-y:auto;
    transform:translateX(-102%);opacity:0;visibility:hidden;
    transition:transform 320ms var(--ease),opacity 280ms var(--ease),visibility 320ms;
  }
  .nav-menu.is-open{transform:translateX(0);opacity:1;visibility:visible;}
  .nav-link{height:52px;display:flex;align-items:center;padding:0 8px;font-size:1rem;border-radius:var(--radius-sm);}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:rgba(14,159,138,.14);color:#7FE3D5;}
  .nav-toggle{display:block;}
  .nav-actions .btn{display:none;}
  .loss-wrap{grid-template-columns:1fr;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .cat-hero{padding:120px 0 60px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .card-grid{grid-template-columns:1fr;}
  .deliver-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .panel{padding:24px;}
  .scene-block{padding:24px;}
}
@media (max-width:575px){
  .container{padding:0 20px;}
  .metric-strip{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .breadcrumb-nav{font-size:.8rem;}
}

/* roulang page: category3 */
:root{
  --brand:#0E9F8A;
  --brand-dark:#0A7C6C;
  --accent:#E4662B;
  --ink:#12161B;
  --body:#4A4F55;
  --muted:#7C838B;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --surface-2:#EDEBE6;
  --line:#DCD9D2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--body);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-dark);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{color:var(--ink);font-weight:800;letter-spacing:-.02em;margin:0}
p{margin:0 0 18px}
ul,ol{margin:0 0 18px;padding-left:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{width:100%;padding-right:20px;padding-left:20px;margin-right:auto;margin-left:auto}
@media (min-width:576px){.container{max-width:560px}}
@media (min-width:768px){.container{max-width:720px}}
@media (min-width:992px){.container{max-width:960px}}
@media (min-width:1200px){.container{max-width:1140px}}
@media (min-width:1400px){.container{max-width:1240px}}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(18,22,27,.96);
  box-shadow:var(--shadow-md);
  border-bottom-color:rgba(255,255,255,.08);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.06rem;letter-spacing:-.02em;white-space:nowrap}
.logo:hover{color:#fff}
.logo-mark{
  width:24px;height:24px;border-radius:7px;background:var(--brand);position:relative;flex:0 0 24px;
  box-shadow:0 0 0 3px rgba(14,159,138,.22);
}
.logo-mark::before{
  content:"";position:absolute;left:5px;right:5px;top:11px;height:2px;border-radius:2px;background:#08211C;
  box-shadow:0 -5px 0 -0.5px #08211C,0 5px 0 -0.5px #08211C;
}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;color:rgba(255,255,255,.82);font-size:.94rem;font-weight:500;
  padding:9px 13px;border-radius:var(--radius-sm);transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.10)}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.24);
  background:transparent;color:rgba(255,255,255,.86);display:inline-flex;align-items:center;justify-content:center;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{border-color:var(--brand);color:#fff;background:rgba(14,159,138,.18)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.24);
  background:transparent;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .18s var(--ease),opacity .18s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;font-weight:600;font-size:.95rem;
  padding:12px 24px;cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .28s var(--ease);
}
.btn i{transition:transform .18s var(--ease)}
.btn:hover i{transform:translateX(4px)}
.btn-brand{background:var(--brand);color:#06231D}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000;color:#fff;box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost-light:hover{border-color:var(--brand);color:#fff;background:rgba(14,159,138,.16)}
.btn-sm{padding:9px 18px;font-size:.88rem}
.btn-block{width:100%}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-alt{background:var(--surface-2)}
.section-dark{background:var(--ink);color:rgba(255,255,255,.76)}
.section-dark h2,.section-dark h3{color:#fff}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;color:var(--brand-dark);
  background:rgba(14,159,138,.10);border:1px solid rgba(14,159,138,.22);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.section-dark .eyebrow{color:#7FE3D4;background:rgba(14,159,138,.16);border-color:rgba(14,159,138,.34)}
h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.18}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3}
h3{font-size:1.14rem;line-height:1.45}
h4{font-size:1rem;font-weight:700}
.lead{font-size:1.06rem;color:var(--body);line-height:1.85}
.section-dark .lead{color:rgba(255,255,255,.76)}

/* ---------- 内页 Hero ---------- */
.page-hero{
  position:relative;color:#fff;padding:152px 0 76px;overflow:hidden;
  background-color:rgba(15,19,24,.82);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  background-blend-mode:multiply;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.10);
}
.page-hero h1{color:#fff;max-width:840px}
.page-hero .lead{color:rgba(255,255,255,.80);max-width:720px;margin-top:18px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.86rem;color:rgba(255,255,255,.62);margin-bottom:20px}
.crumb a{color:rgba(255,255,255,.78)}
.crumb a:hover{color:#fff}
.crumb i{font-size:.62rem;opacity:.7}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:2px;
  margin-top:52px;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--line);border-top:3px solid var(--brand);
  box-shadow:var(--shadow-lg);
}
.hero-metric{background:rgba(246,245,242,.94);padding:22px 24px}
.hero-metric .num{font-size:1.9rem;font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1.1}
.hero-metric .num small{font-size:.86rem;font-weight:700;color:var(--brand-dark);margin-left:4px;letter-spacing:0}
.hero-metric .cap{font-size:.86rem;color:var(--muted);margin-top:6px}

/* ---------- 卡片 ---------- */
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card-x:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.card-x h3{margin-bottom:10px}
.card-x p{color:var(--body);font-size:.95rem;margin-bottom:0}
.card-icon{
  width:44px;height:44px;border-radius:var(--radius-md);background:rgba(14,159,138,.10);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-dark);font-size:1.05rem;margin-bottom:16px;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;background:var(--surface-2);color:var(--ink);
  font-size:.75rem;font-weight:700;letter-spacing:.04em;padding:5px 11px;border-radius:var(--radius-sm);
}
.badge-accent{background:rgba(228,102,43,.12);color:#B64A18}

/* ---------- 信号判断（四宫格不等宽） ---------- */
.signal-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px}
.signal-grid .card-x:first-child{background:var(--ink);border-color:var(--ink);color:rgba(255,255,255,.78)}
.signal-grid .card-x:first-child h3{color:#fff}
.signal-grid .card-x:first-child p{color:rgba(255,255,255,.72)}
.signal-grid .card-x:first-child .card-icon{background:rgba(14,159,138,.22);color:#7FE3D4}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:12px}
.timeline::before{content:"";position:absolute;left:27px;top:16px;bottom:16px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-left:82px;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{
  position:absolute;left:0;top:6px;width:56px;height:56px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.05rem;
  box-shadow:var(--shadow-sm);transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease);
}
.tl-item:hover .tl-dot{background:var(--brand);color:#06231D;border-color:var(--brand)}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 26px;box-shadow:var(--shadow-sm);transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.tl-item:hover .tl-card{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.tl-card h3{margin-bottom:8px}
.tl-card p{font-size:.95rem;margin-bottom:12px}
.tl-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tl-meta .badge-soft{font-size:.72rem}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center}
.split + .split{margin-top:56px}
.split-media{grid-column:span 5}
.split-body{grid-column:span 7}
.split.reverse .split-media{order:2}
.split-media img{border-radius:var(--radius-md);box-shadow:var(--shadow-md);width:100%;height:auto;object-fit:cover}
.split-body h3{font-size:1.3rem;margin-bottom:12px}
.split-body p{font-size:.97rem}

/* ---------- 要点列表 ---------- */
.checks li{
  display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:.96rem;
}
.checks li:last-child{border-bottom:0}
.checks i{color:var(--brand);font-size:1rem;margin-top:5px;flex:0 0 auto}
.section-dark .checks li{border-bottom-color:rgba(255,255,255,.14);color:rgba(255,255,255,.78)}

/* ---------- 指标条 ---------- */
.bar-list{display:grid;gap:18px;margin-top:8px}
.bar-row{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px 24px;box-shadow:var(--shadow-sm)}
.bar-row .bar-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:12px}
.bar-row .bar-top h4{margin:0;font-size:1rem}
.bar-row .bar-top span{font-size:.86rem;color:var(--muted)}
.bar-track{height:10px;border-radius:999px;background:var(--surface-2);overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:var(--brand);width:0;transition:width 1.1s var(--ease)}
.bar-fill.accent{background:var(--accent)}

/* ---------- 场景卡片 ---------- */
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.scene-card img{width:100%;height:auto}
.scene-card .scene-body{padding:22px 24px 26px}
.scene-card h3{font-size:1.06rem;margin-bottom:8px}
.scene-card p{font-size:.92rem;color:var(--body);margin-bottom:0}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  background:transparent;color:var(--ink);font-weight:600;font-size:1.02rem;
  padding:22px 4px;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-dark);background:transparent;box-shadow:inset 3px 0 0 var(--brand);padding-left:18px;
}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand);border-color:transparent}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;font-size:1.4rem;font-weight:600;line-height:1;
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;margin-left:auto;
  transform:none;transition:transform .18s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.faq-acc .accordion-body{padding:0 18px 24px;color:var(--body);line-height:1.85;font-size:.96rem}

/* ---------- CTA 横条 ---------- */
.cta-strip{
  background:var(--ink);color:#fff;border-radius:var(--radius-lg);
  padding:44px 46px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-lg);
}
.cta-strip h2{color:#fff;font-size:clamp(1.3rem,2.2vw,1.7rem);margin-bottom:8px}
.cta-strip p{color:rgba(255,255,255,.72);margin:0;font-size:.95rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.68);position:relative;padding-top:64px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px}
.footer-col + .footer-col{border-left:1px solid rgba(255,255,255,.08);padding-left:32px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:14px}
.footer-col p{font-size:.92rem;line-height:1.85;color:rgba(255,255,255,.62);margin-bottom:0}
.footer-title{color:#fff;font-weight:700;font-size:.95rem;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.68);font-size:.92rem}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:12px;font-size:.9rem;color:rgba(255,255,255,.66)}
.footer-contact i{color:var(--brand);margin-right:8px;width:14px}
.footer-contact a{color:rgba(255,255,255,.78)}
.footer-contact a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.85rem;color:rgba(255,255,255,.5);
}

/* ---------- 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}
.hero-anim{opacity:0;transform:translateY(12px);animation:heroUp .6s var(--ease) forwards}
.hero-anim.d1{animation-delay:.06s}
.hero-anim.d2{animation-delay:.12s}
.hero-anim.d3{animation-delay:.18s}
.hero-anim.d4{animation-delay:.24s}
@keyframes heroUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  [data-reveal],.hero-anim{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:28px}
  .footer-col:nth-child(4){grid-column:1 / -1;border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.08);padding-top:26px}
  .signal-grid{grid-template-columns:1fr 1fr}
  .signal-grid .card-x:first-child{grid-column:1 / -1}
}
@media (max-width:991.98px){
  .site-header{background:rgba(18,22,27,.9)}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;bottom:0;
    background:rgba(15,19,24,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    flex-direction:column;align-items:stretch;gap:0;margin:0;padding:18px 20px 32px;
    transform:translateX(100%);transition:transform .28s var(--ease);
    border-top:1px solid rgba(255,255,255,.10);overflow-y:auto;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-link{padding:0 6px;height:52px;display:flex;align-items:center;font-size:1rem;border-radius:var(--radius-sm);border-bottom:1px solid rgba(255,255,255,.07)}
  .nav-link.is-active::after{left:6px;right:auto;width:22px;bottom:14px}
  .nav-toggle{display:flex}
  .icon-btn{display:none}
  .section{padding:64px 0}
  .section-sm{padding:48px 0}
  .page-hero{padding:120px 0 60px}
  .split{grid-template-columns:1fr;gap:24px}
  .split-media,.split-body{grid-column:auto;order:0 !important}
  .split-body h3{font-size:1.2rem}
  .cta-strip{padding:32px 26px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col + .footer-col{border-left:0;padding-left:0}
  .footer-col{padding-top:24px;border-top:1px solid rgba(255,255,255,.08)}
  .footer-col:first-child{border-top:0;padding-top:0}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .hero-metrics{grid-template-columns:1fr;gap:1px}
  .hero-metric{padding:18px 20px}
  .signal-grid{grid-template-columns:1fr}
  .timeline::before{left:21px}
  .tl-item{padding-left:64px}
  .tl-dot{width:44px;height:44px;font-size:.95rem}
  .tl-card{padding:20px}
  .card-x{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .page-hero{padding:110px 0 54px}
  .nav-inner{height:64px}
  .nav-menu{top:64px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .faq-acc .accordion-button{font-size:.97rem;padding:18px 2px}
}

/* roulang page: category4 */
:root{
  --brand:#0E9F8A;
  --brand-dark:#0A7C6C;
  --accent:#E4662B;
  --ink:#12161B;
  --body:#4A4F55;
  --muted:#7C838B;
  --bg:#F6F5F2;
  --surface:#FFFFFF;
  --surface-2:#EDEBE6;
  --line:#DCD9D2;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",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:16.5px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md);}
a{color:var(--brand-dark);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand);}
h1,h2,h3,h4{color:var(--ink);letter-spacing:-.02em;font-weight:800;margin:0 0 14px;line-height:1.28;}
h1{font-size:clamp(2.2rem,3.8vw,3.1rem);}
h2{font-size:clamp(1.5rem,2.6vw,2.1rem);}
h3{font-size:clamp(1.05rem,1.5vw,1.25rem);font-weight:700;}
h4{font-size:1rem;font-weight:700;}
p{margin:0 0 18px;}
ul,ol{margin:0 0 18px;padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}

.container{
  width:100%;
  max-width:100%;
  margin-inline:auto;
  padding-inline:20px;
}
@media (min-width:768px){ .container{max-width:960px;padding-inline:24px;} }
@media (min-width:1200px){ .container{max-width:1140px;} }
@media (min-width:1400px){ .container{max-width:1240px;} }

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  box-shadow:0 2px 14px rgba(18,22,27,.18);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(18,22,27,.96);
  box-shadow:var(--shadow-md);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:22px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.08rem;letter-spacing:-.02em;}
.logo:hover{color:#fff;}
.logo-mark{
  width:22px;height:22px;border-radius:7px;background:var(--brand);
  position:relative;display:inline-block;flex:0 0 auto;
}
.logo-mark::after{content:"";position:absolute;inset:6px;border-radius:50%;background:#fff;}
.logo-text{white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-flex;align-items:center;
  color:rgba(255,255,255,.82);
  font-size:15px;font-weight:500;
  padding:9px 14px;border-radius:999px;
  transition:color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.10);}
.nav-link.is-active{color:#fff;background:var(--brand-dark);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:38px;height:38px;border-radius:999px;
  border:1px solid rgba(255,255,255,.18);
  background:transparent;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34);}
.nav-cta-mobile{display:none;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.18);background:transparent;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .24s var(--ease),opacity .24s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:none;border-radius:999px;
  font-weight:600;font-size:15px;padding:12px 24px;cursor:pointer;
  transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md);}
.btn-brand i{transition:transform .18s var(--ease);}
.btn-brand:hover i{transform:translateX(4px);}
.btn-brand.btn-sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);
  border-radius:999px;font-weight:600;font-size:15px;padding:12px 24px;cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease),background .22s var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(14,159,138,.08);}
.btn-outline-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--ink);border:1px solid var(--line);
  border-radius:999px;font-weight:600;font-size:15px;padding:12px 24px;cursor:pointer;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.btn-outline-dark:hover{border-color:var(--brand);color:var(--brand);}
.btn-block{width:100%;}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;color:#fff;
  padding:152px 0 76px;
  background:#12161B url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow:hidden;
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(18,22,27,.74);}
.page-hero .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.68);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.5;}
.crumb .now{color:var(--brand);font-weight:600;}
.page-hero h1{color:#fff;max-width:15em;}
.page-hero .lead{color:rgba(255,255,255,.78);font-size:1.06rem;max-width:44em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:38px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  background:rgba(255,255,255,.92);
  border-radius:var(--radius-lg);
  border-top:3px solid var(--brand);
  box-shadow:var(--shadow-lg);
  overflow:hidden;
}
.hero-stat{padding:22px 24px;border-right:1px solid var(--line);}
.hero-stat:last-child{border-right:none;}
.hero-stat .num{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;}
.hero-stat .num span{font-size:.5em;font-weight:700;color:var(--brand-dark);margin-left:4px;}
.hero-stat .cap{font-size:13.5px;color:var(--muted);font-weight:500;margin-top:6px;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--surface-2);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--brand-dark);background:rgba(14,159,138,.12);
  border-radius:var(--radius-sm);padding:5px 12px;margin-bottom:14px;
}
.section-head p{color:var(--muted);margin-bottom:0;}
.section-head.center{margin-inline:auto;text-align:center;}

/* ============ 表格 ============ */
.table-wrap{
  overflow-x:auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  -webkit-overflow-scrolling:touch;
}
table.cmp{width:100%;min-width:900px;border-collapse:separate;border-spacing:0;font-size:15px;}
table.cmp thead th{
  position:-webkit-sticky;position:sticky;top:0;z-index:2;
  background:var(--ink);color:#fff;
  text-align:left;font-weight:600;font-size:13.5px;letter-spacing:.03em;
  padding:16px 18px;white-space:nowrap;
  border-bottom:1px solid rgba(255,255,255,.12);
}
table.cmp tbody td{
  padding:16px 18px;border-top:1px solid var(--line);
  color:var(--body);vertical-align:top;line-height:1.7;
}
table.cmp tbody tr:nth-child(even){background:var(--surface-2);}
table.cmp tbody tr:hover{background:rgba(14,159,138,.07);}
table.cmp td:first-child{font-weight:700;color:var(--ink);white-space:nowrap;}
.num-strong{font-weight:800;color:var(--ink);}
.num-accent{font-weight:800;color:var(--accent);}
.num-good{font-weight:800;color:var(--brand-dark);}
.badge-soft{
  display:inline-block;padding:4px 10px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);
  color:var(--ink);font-size:12px;font-weight:700;letter-spacing:.04em;
  white-space:nowrap;
}
.table-note{font-size:13.5px;color:var(--muted);margin-top:14px;}

/* ============ 卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
  display:flex;flex-direction:column;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand);}
.info-card img{width:100%;aspect-ratio:16/9;object-fit:cover;margin-bottom:18px;}
.info-card h3{margin-bottom:10px;}
.info-card p{font-size:15px;color:var(--muted);margin-bottom:14px;}
.info-card .card-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--body);padding:6px 0;
}
.info-card .card-list i{color:var(--brand);font-size:13px;margin-top:6px;flex:0 0 auto;}

/* ============ 双列对照 ============ */
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.dual-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px;
  box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.dual-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand);}
.dual-card.is-feature{border:2px solid var(--accent);position:relative;}
.dual-card.is-feature::before{
  content:"推荐路径";
  position:absolute;top:-13px;left:26px;
  background:var(--accent);color:#fff;font-size:12px;font-weight:700;
  letter-spacing:.04em;padding:4px 12px;border-radius:999px;
}
.dual-card h3{margin-bottom:6px;}
.dual-card .sub{font-size:14px;color:var(--muted);margin-bottom:18px;}
.tick-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:15px;
}
.tick-list li:last-child{border-bottom:none;}
.tick-list .tick{
  flex:0 0 auto;width:20px;height:20px;border-radius:50%;
  background:rgba(14,159,138,.14);color:var(--brand-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;margin-top:5px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin-inline:auto;}
.accordion-item{
  background:transparent;border:none;border-top:1px solid var(--line);
}
.accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion-button{
  background:transparent;color:var(--ink);
  font-weight:600;font-size:1.02rem;
  padding:22px 54px 22px 18px;
  border-radius:0;box-shadow:none !important;
  transition:color .2s var(--ease);
  position:relative;
}
.accordion-button::after{display:none;}
.accordion-button::before{
  content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform .18s var(--ease),color .18s var(--ease);
}
.accordion-button:not(.collapsed)::before{content:"−";transform:translateY(-50%) rotate(180deg);color:var(--accent);}
.accordion-button:not(.collapsed){background:rgba(14,159,138,.06);color:var(--ink);box-shadow:inset 3px 0 0 var(--brand) !important;}
.accordion-button:hover{color:var(--brand-dark);}
.accordion-body{padding:4px 18px 24px;color:var(--body);font-size:15.5px;line-height:1.85;}

/* ============ CTA ============ */
.cta-section{padding:0 0 96px;}
.cta-bar{
  background:var(--ink);color:#fff;
  border-radius:var(--radius-lg);
  padding:44px 46px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.cta-bar::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  border-radius:50%;background:rgba(14,159,138,.16);
}
.cta-bar h2{color:#fff;margin-bottom:8px;font-size:clamp(1.35rem,2.2vw,1.75rem);}
.cta-bar p{color:rgba(255,255,255,.72);margin:0;font-size:15px;max-width:44em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--ink);color:rgba(255,255,255,.68);
  padding:64px 0 26px;font-size:14.5px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:34px;
  padding-bottom:36px;
}
.footer-col{border-right:1px solid rgba(255,255,255,.08);padding-right:24px;}
.footer-col:last-child{border-right:none;padding-right:0;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.05rem;margin-bottom:14px;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0;}
.footer-title{color:#fff;font-weight:700;font-size:15px;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(255,255,255,.66);font-size:14px;}
.footer-links a:hover{color:var(--brand);}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.66);}
.footer-contact i{color:var(--brand);margin-right:8px;}
.footer-contact a{color:rgba(255,255,255,.66);}
.footer-contact a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding-top:20px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13.5px;color:rgba(255,255,255,.48);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .card-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-col:nth-child(4){grid-column:1/-1;border-right:none;padding-right:0;border-top:1px solid rgba(255,255,255,.08);padding-top:24px;}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .nav-menu{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(18,22,27,.98);
    -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
    padding:18px 16px 26px;
    transform:translateX(102%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
    box-shadow:-12px 0 40px rgba(0,0,0,.35);
  }
  .nav-menu.is-open{transform:translateX(0);}
  .nav-link{height:52px;padding:0 16px;font-size:16px;border-radius:var(--radius-md);}
  .nav-cta-mobile{
    display:flex;align-items:center;justify-content:center;
    height:52px;margin-top:16px;
    background:var(--brand);color:#fff;font-weight:700;
    border-radius:999px;font-size:16px;
  }
  .nav-cta-mobile:hover{background:var(--brand-dark);color:#fff;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .page-hero{padding:132px 0 64px;}
  .hero-stats{grid-template-columns:1fr;}
  .hero-stat{border-right:none;border-bottom:1px solid var(--line);}
  .hero-stat:last-child{border-bottom:none;}
  .section{padding:74px 0;}
  .cta-bar{padding:34px 28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .dual-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .footer-col{border-right:none;padding-right:0;}
  .footer-col:nth-child(1),.footer-col:nth-child(4){grid-column:1/-1;}
  .footer-col:nth-child(4){border-top:1px solid rgba(255,255,255,.08);padding-top:22px;margin-top:4px;}
  .page-hero{padding:118px 0 56px;}
  .page-hero h1{max-width:none;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  .container{padding-inline:20px;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:58px 0;}
  .section-head{margin-bottom:32px;}
  h1{font-size:2rem;}
  .info-card,.dual-card{padding:22px;}
  .cta-bar{padding:28px 22px;border-radius:var(--radius-md);}
  .nav-actions .btn-brand{display:none;}
  .footer-bottom{flex-direction:column;}
  table.cmp{font-size:14px;}
  table.cmp thead th,table.cmp tbody td{padding:13px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category5 */
:root{
  --brand:#0E9F8A;--brand-dark:#0A7C6C;--accent:#E4662B;--ink:#12161B;
  --body:#4A4F55;--muted:#7C838B;--bg:#F6F5F2;--surface:#FFFFFF;--surface-2:#EDEBE6;
  --line:#DCD9D2;--radius-lg:16px;--radius-md:12px;--radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(18,22,27,.05);
  --shadow-md:0 8px 24px rgba(18,22,27,.08);
  --shadow-lg:0 18px 44px rgba(18,22,27,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:74px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--body);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em;line-height:1.24}
p{margin:0 0 18px}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:1240px;margin-inline:auto;padding-inline:32px;--bs-gutter-x:2rem}
.row{--bs-gutter-x:2rem}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;font-weight:600;font-size:.95rem;
  padding:.78rem 1.5rem;line-height:1.2;background:transparent;color:var(--ink);
  transition:background-color .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn i{transition:transform .18s var(--ease)}
.btn:hover i.fa-arrow-right{transform:translateX(4px)}
.btn-brand{background:var(--brand);color:#04211C;box-shadow:var(--shadow-sm)}
.btn-brand:hover,.btn-brand:focus{background:var(--brand-dark);color:#fff;box-shadow:var(--shadow-md)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover,.btn-ink:focus{background:#000;color:#fff}
.btn-ghost{border-color:var(--line);color:var(--ink);background:transparent}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--brand);color:var(--brand)}
.btn-ghost-light{border-color:rgba(255,255,255,.34);color:#fff}
.btn-ghost-light:hover,.btn-ghost-light:focus{border-color:var(--brand);color:var(--brand);background:rgba(255,255,255,.06)}
.btn-sm{padding:.52rem 1rem;font-size:.88rem}
.btn-lg{padding:.95rem 1.9rem;font-size:1.02rem}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(18,22,27,.42);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.12);
  transition:background-color .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-solid{
  background:rgba(18,22,27,.96);
  border-bottom-color:rgba(255,255,255,.07);
  box-shadow:var(--shadow-md);
}
.nav-inner{display:flex;align-items:center;gap:18px;height:var(--nav-h)}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.06rem;letter-spacing:-.02em;flex:0 0 auto}
.logo-mark{
  position:relative;width:28px;height:28px;border-radius:9px;background:var(--brand);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.28);flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 5px;border-radius:2px;
  background:linear-gradient(90deg,transparent 0 12%,#04211C 12% 26%,transparent 26% 40%,#04211C 40% 56%,transparent 56% 70%,#04211C 70% 84%,transparent 84%);
}
.footer-logo .logo-mark{box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.nav-menu{display:flex;align-items:center;gap:2px;margin-inline:auto}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  color:rgba(255,255,255,.82);font-size:.94rem;font-weight:500;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.09)}
.nav-link.is-active{
  color:#fff;background:rgba(14,159,138,.26);
  box-shadow:inset 0 0 0 1px rgba(14,159,138,.65);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;border-radius:999px;display:grid;place-items:center;
  color:rgba(255,255,255,.85);transition:background-color .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;padding:9px 8px;flex-direction:column;justify-content:space-between}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:#fff;transition:transform .24s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:calc(var(--nav-h) + 78px) 0 0;
  background-image:linear-gradient(115deg,rgba(18,22,27,.94) 0%,rgba(18,22,27,.82) 46%,rgba(18,22,27,.58) 100%),
                   url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;color:rgba(255,255,255,.82);overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.10);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center;padding-bottom:78px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:22px;
  padding:7px 15px;border-radius:999px;font-size:.82rem;font-weight:600;letter-spacing:.02em;
  color:#DFFBF5;background:rgba(14,159,138,.18);border:1px solid rgba(14,159,138,.45);
}
.hero-eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(14,159,138,.22)}
.hero-title{color:#fff;font-size:clamp(2.1rem,4.4vw,3.35rem);font-weight:800;margin-bottom:20px}
.hero-title em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:1.06rem;line-height:1.9;color:rgba(255,255,255,.78);max-width:600px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-side{position:relative}
.hero-figure{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);
}
.hero-figure img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.hero-note{
  margin-top:18px;display:flex;align-items:flex-start;gap:12px;
  padding:16px 18px;border-radius:var(--radius-md);
  background:rgba(18,22,27,.55);border:1px solid rgba(255,255,255,.12);
}
.hero-note i{color:var(--brand);margin-top:4px}
.hero-note span{font-size:.92rem;color:rgba(255,255,255,.76);line-height:1.7}

.stat-strip{
  position:relative;background:rgba(246,245,242,.96);
  border-top:3px solid var(--brand);border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow:0 -14px 34px rgba(18,22,27,.18);
}
.stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.stat-item{padding:30px 34px;position:relative}
.stat-item+.stat-item::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:1px;background:var(--line)}
.stat-num{display:flex;align-items:baseline;gap:6px;color:var(--ink);font-weight:800;font-size:2.1rem;letter-spacing:-.03em;line-height:1.1}
.stat-num .unit{font-size:1rem;font-weight:700;color:var(--brand-dark)}
.stat-label{margin-top:6px;font-size:.9rem;color:var(--muted);font-weight:500}

/* ---------- 通用板块 ---------- */
.section{padding:104px 0}
.section--alt{background:var(--surface)}
.section--tight{padding-top:84px;padding-bottom:84px}
.section-head{max-width:760px;margin-bottom:52px}
.section-head.is-center{margin-inline:auto;text-align:center}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:.8rem;font-weight:700;letter-spacing:.06em;color:var(--brand-dark);
}
.section-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.section-title{font-size:clamp(1.5rem,2.6vw,2.1rem);margin-bottom:16px}
.section-desc{color:var(--body);font-size:1.02rem;margin:0}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.88rem;color:var(--muted);padding:22px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line)}
.crumb .current{color:var(--ink);font-weight:600}

/* ---------- 清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 26px}
.check-item{
  display:flex;gap:16px;padding:22px 24px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.check-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.check-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:rgba(14,159,138,.12);color:var(--brand-dark);font-size:.82rem;margin-top:2px;
}
.check-title{font-size:1.05rem;font-weight:700;color:var(--ink);margin-bottom:6px;letter-spacing:-.01em}
.check-text{font-size:.94rem;color:var(--body);line-height:1.75;margin:0}

/* ---------- 交付物卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.dc-card{
  display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.dc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.dc-media{position:relative;overflow:hidden;background:var(--surface-2)}
.dc-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .42s var(--ease)}
.dc-card:hover .dc-media img{transform:scale(1.04)}
.dc-tag{
  position:absolute;left:14px;top:14px;padding:5px 11px;border-radius:999px;
  background:rgba(18,22,27,.82);color:#fff;font-size:.74rem;font-weight:700;letter-spacing:.04em;
}
.dc-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.dc-title{font-size:1.13rem;font-weight:700;margin-bottom:10px;color:var(--ink)}
.dc-text{font-size:.94rem;color:var(--body);line-height:1.78;margin-bottom:18px}
.dc-list{margin:0 0 20px;display:grid;gap:10px}
.dc-list li{position:relative;padding-left:20px;font-size:.9rem;color:var(--muted)}
.dc-list li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--brand);opacity:.85}
.dc-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:.92rem;font-weight:700;color:var(--brand-dark)}
.dc-link i{transition:transform .18s var(--ease)}
.dc-link:hover i{transform:translateX(4px)}

/* ---------- 配合事项 ---------- */
.fit-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.fit-item{
  padding:26px 28px;border-radius:var(--radius-lg);background:var(--surface-2);
  border:1px solid transparent;transition:border-color .28s var(--ease),background-color .28s var(--ease);
}
.fit-item:hover{border-color:var(--brand);background:var(--surface)}
.fit-item i{font-size:1.1rem;color:var(--brand-dark);margin-bottom:14px;display:block}
.fit-item h4{font-size:1.02rem;margin-bottom:8px;color:var(--ink);font-weight:700}
.fit-item p{font-size:.93rem;margin:0;line-height:1.76;color:var(--body)}

/* ---------- 深色数据带 ---------- */
.metric-band{
  background:var(--ink);color:rgba(255,255,255,.76);position:relative;overflow:hidden;
}
.metric-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 18% 12%,rgba(14,159,138,.22),transparent 46%),
                   radial-gradient(circle at 88% 82%,rgba(228,102,43,.16),transparent 50%);
  pointer-events:none;
}
.metric-band .inner{position:relative;padding:88px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px;margin-top:44px}
.metric{
  padding:26px 24px;border-radius:var(--radius-md);
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.10);
  transition:background-color .28s var(--ease),transform .28s var(--ease);
}
.metric:hover{background:rgba(14,159,138,.14);transform:translateY(-3px)}
.metric-num{font-size:2.15rem;font-weight:800;color:#fff;letter-spacing:-.03em;line-height:1.15}
.metric-num small{font-size:.95rem;font-weight:700;color:var(--brand);margin-left:4px}
.metric-label{margin-top:8px;font-size:.9rem;color:rgba(255,255,255,.66)}
.metric-band h2{color:#fff}
.metric-band .section-desc{color:rgba(255,255,255,.72)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin-inline:auto;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:8px 30px}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:last-child{border-bottom:0}
.accordion-header{font-size:inherit}
.accordion-button{
  display:flex;align-items:center;gap:16px;width:100%;
  padding:24px 4px;background:transparent;color:var(--ink);
  font-size:1.04rem;font-weight:600;line-height:1.5;letter-spacing:-.01em;
  border:0;box-shadow:none;border-radius:0;
  transition:color .18s var(--ease),box-shadow .18s var(--ease),padding .18s var(--ease);
}
.accordion-button:not(.collapsed){
  color:var(--brand-dark);box-shadow:inset 3px 0 0 var(--brand);padding-left:16px;
}
.accordion-button::after{
  content:"+";margin-left:auto;flex:0 0 auto;
  width:28px;height:28px;display:grid;place-items:center;
  background-image:none;background-color:var(--surface-2);color:var(--ink);
  font-size:1.05rem;font-weight:600;line-height:1;border-radius:9px;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"−";background-color:var(--brand);color:#fff;transform:rotate(180deg)}
.accordion-button:focus{box-shadow:none}
.accordion-button:not(.collapsed):focus{box-shadow:inset 3px 0 0 var(--brand)}
.accordion-body{padding:0 4px 26px;font-size:.96rem;line-height:1.85;color:var(--body)}
.accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{padding-left:16px}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 104px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#12161B 0%,#173B36 100%);
  padding:56px 58px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.cta-inner::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,159,138,.34),transparent 68%);
}
.cta-copy{position:relative;max-width:620px}
.cta-copy h2{color:#fff;font-size:clamp(1.4rem,2.3vw,1.9rem);margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.74);font-size:.98rem;margin:0}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.62);position:relative;padding:0 0 34px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:0;padding:66px 0 44px}
.footer-col{padding:0 30px;position:relative}
.footer-col:first-child{padding-left:0}
.footer-col:last-child{padding-right:0}
.footer-col+.footer-col::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:rgba(255,255,255,.09)}
.footer-logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.06rem;margin-bottom:16px}
.footer-col p{font-size:.9rem;line-height:1.8;color:rgba(255,255,255,.58);margin:0}
.footer-title{color:#fff;font-size:.94rem;font-weight:700;margin-bottom:16px;letter-spacing:.01em}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:.92rem;color:rgba(255,255,255,.62);display:inline-block}
.footer-links a:hover{color:var(--brand)}
.footer-contact{display:grid;gap:12px}
.footer-contact span{display:flex;gap:10px;font-size:.9rem;line-height:1.7;color:rgba(255,255,255,.62)}
.footer-contact i{color:var(--brand);margin-top:5px;flex:0 0 auto}
.footer-contact a{color:rgba(255,255,255,.78)}
.footer-contact a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.09);padding-top:22px;
  font-size:.85rem;color:rgba(255,255,255,.45);
}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
.js .hero-title,.js .hero-sub,.js .hero-eyebrow,.js .hero-cta{opacity:0;transform:translateY(12px);animation:heroUp .62s var(--ease) forwards}
.js .hero-eyebrow{animation-delay:.05s}
.js .hero-title{animation-delay:.11s}
.js .hero-sub{animation-delay:.17s}
.js .hero-cta{animation-delay:.23s}
@keyframes heroUp{to{opacity:1;transform:none}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .js .reveal{opacity:1;transform:none}
  .js .hero-title,.js .hero-sub,.js .hero-eyebrow,.js .hero-cta{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .container{max-width:1140px}
}
@media (max-width:1199.98px){
  .container{max-width:960px}
  .hero-grid{gap:40px}
  .nav-link{padding:0 11px;font-size:.9rem}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 0;padding:56px 0 36px}
  .footer-col{padding:0 26px}
  .footer-col:nth-child(odd){padding-left:0}
  .footer-col:nth-child(even){padding-right:0}
  .footer-col:nth-child(3)::before,.footer-col:nth-child(4)::before{display:none}
}
@media (max-width:991.98px){
  .container{max-width:100%;padding-inline:24px}
  .nav-menu{
    position:fixed;left:0;right:0;top:var(--nav-h);bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;margin:0;padding:20px 20px 30px;
    background:rgba(18,22,27,.98);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    transform:translateY(-10px);opacity:0;visibility:hidden;overflow-y:auto;
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
  }
  .nav-menu.is-open{opacity:1;visibility:visible;transform:none}
  .nav-link{height:52px;padding:0 16px;border-radius:12px;font-size:1rem}
  .nav-toggle{display:flex}
  .icon-btn{display:none}
  .hero{padding-top:calc(var(--nav-h) + 52px)}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:56px}
  .hero-side{order:2}
  .stat-grid{grid-template-columns:1fr}
  .stat-item+.stat-item::before{left:34px;right:34px;top:0;bottom:auto;width:auto;height:1px}
  .section{padding:76px 0}
  .section-head{margin-bottom:36px}
  .check-grid,.fit-grid{grid-template-columns:1fr}
  .faq-wrap{padding:6px 22px}
  .cta-inner{padding:40px 32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .hero{padding-top:calc(var(--nav-h) + 40px)}
  .hero-title{font-size:clamp(1.9rem,7.4vw,2.4rem)}
  .hero-cta .btn{flex:1 1 100%}
  .stat-item{padding:22px 24px}
  .stat-num{font-size:1.75rem}
  .section{padding:60px 0}
  .card-grid,.metric-grid{grid-template-columns:1fr}
  .cta-band{padding:0 0 66px}
  .cta-inner{padding:34px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-col{padding:0 !important}
  .footer-col+.footer-col::before{display:none}
  .footer-bottom{flex-direction:column}
}
@media (max-width:575.98px){
  .container{padding-inline:20px}
  .hero-eyebrow{font-size:.78rem}
  .dc-body{padding:20px 20px 24px}
  .faq-wrap{padding:4px 16px}
  .accordion-button{font-size:.98rem;padding:20px 2px}
  .accordion-body{padding-bottom:22px}
}