/* roulang page: index */
:root{
  --ink:#0F1512;
  --ink-2:#3C4642;
  --muted:#6B7570;
  --brand-900:#0A3A2C;
  --brand-600:#0F6B4F;
  --brand-050:#E8F1EC;
  --accent:#C6F24E;
  --alert:#FF6A2B;
  --paper:#F7F6F2;
  --paper-2:#EDEBE4;
  --line:rgba(15,21,18,.10);
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-static:0 1px 2px rgba(15,21,18,.06);
  --shadow-hover:0 24px 48px -32px rgba(15,21,18,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.2}
::selection{background:var(--accent);color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 40px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:44px 0}
@media(min-width:1024px){.section-tight{padding:64px 0}}

/* ---------- 公告条 ---------- */
.notice-bar{background:var(--brand-900);color:var(--paper);min-height:40px;display:flex;align-items:center;font-size:13.5px;position:relative;z-index:70}
.notice-inner{display:flex;align-items:center;gap:12px;justify-content:center;padding:8px 44px 8px 20px;text-align:center;width:100%;max-width:var(--container);margin:0 auto}
.notice-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;box-shadow:0 0 0 4px rgba(198,242,78,.18)}
.notice-link{color:var(--accent);font-weight:600;border-bottom:1px solid rgba(198,242,78,.5);padding-bottom:1px}
.notice-close{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:0;color:rgba(247,246,242,.65);cursor:pointer;font-size:18px;line-height:1;padding:6px}
.notice-close:hover{color:var(--accent)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease}
.site-header.scrolled{background:rgba(247,246,242,.93);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom-color:var(--line);box-shadow:0 6px 24px -20px rgba(15,21,18,.5)}
.nav-inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px}
.nav-left{display:none;align-items:center;gap:26px}
.nav-right{display:flex;align-items:center;gap:20px;justify-content:flex-end}
.nav-link{position:relative;font-size:15px;color:var(--ink-2);padding:6px 2px;transition:color .2s ease;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--brand-600);transition:left .22s ease,right .22s ease}
.nav-link:hover,.nav-link.active{color:var(--brand-600)}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--ink);white-space:nowrap}
.brand-mark{width:12px;height:12px;border-radius:3px;background:var(--accent);box-shadow:inset 0 0 0 1px var(--ink);flex:0 0 auto}
.nav-cta{display:none}
.nav-toggle{width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:rgba(247,246,242,.7);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:1024px){
  .nav-left{display:flex}
  .nav-cta{display:inline-flex}
  .nav-toggle{display:none}
}
.mobile-panel{position:fixed;left:0;right:0;top:72px;bottom:0;background:var(--paper);padding:28px 20px 40px;display:none;flex-direction:column;gap:6px;z-index:55;overflow-y:auto;border-top:1px solid var(--line)}
.mobile-panel.open{display:flex}
.mobile-panel .m-link{font-size:17px;font-weight:600;color:var(--ink-2);padding:14px 4px;border-bottom:1px solid var(--line)}
.mobile-panel .m-link.active{color:var(--brand-600)}
.mobile-panel .m-cta{margin-top:22px;width:100%}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:999px;border:1.5px solid transparent;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease,transform .18s ease,border-color .2s ease;white-space:nowrap}
.btn-primary{background:var(--brand-600);color:var(--paper)}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);border-radius:10px}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:15px;transition:color .2s ease}
.btn-text .arw{transition:transform .2s ease;display:inline-block}
.btn-text:hover{color:var(--brand-900)}
.btn-text:hover .arw{transform:translateX(4px)}

/* ---------- 通用 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--brand-050);color:var(--brand-600);font-size:13px;font-weight:600;padding:5px 10px;border-radius:6px;line-height:1.4}
.badge-dark{background:rgba(15,21,18,.06);color:var(--ink-2)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.h1{font-size:clamp(32px,5vw,60px);line-height:1.14;font-weight:800;letter-spacing:-.02em}
.h2{font-size:clamp(26px,3.2vw,40px);line-height:1.2;font-weight:800;letter-spacing:-.02em}
.h3{font-size:21px;font-weight:700;letter-spacing:-.01em;line-height:1.35}
.lead{font-size:16.5px;color:var(--ink-2);line-height:1.85}
.muted{color:var(--muted);font-size:14px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.section-head .sh-text{max-width:720px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;padding:40px 0 76px}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,246,242,.95) 0%,rgba(247,246,242,.88) 58%,rgba(247,246,242,.98) 100%)}
.hero>.container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1fr;gap:52px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.06fr 1fr;gap:56px}}
.hero h1{margin:20px 0 18px}
.hero-sub{font-size:clamp(17px,2vw,20px);color:var(--ink-2);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-mini{display:flex;flex-wrap:wrap;gap:10px 26px;list-style:none;margin-top:30px}
.hero-mini li{position:relative;padding-left:15px;font-size:14.5px;color:var(--ink-2)}
.hero-mini li::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:13px;border-radius:2px;background:var(--accent)}
.hero-visual{position:relative;padding:0 0 34px}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-static)}
.hero-float{position:absolute;left:0;bottom:0;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-hover);width:min(300px,86%)}
.hero-float .hf-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.hero-float .hf-num{font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.hero-float .hf-label{font-size:13px;color:var(--muted)}
.hero-float .hf-divide{height:1px;background:var(--line);margin:14px 0}
.hf-bar{height:7px;border-radius:999px;background:rgba(15,21,18,.08);overflow:hidden;margin-top:10px}
.hf-bar span{display:block;height:100%;width:0;background:var(--brand-600);border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1)}

/* ---------- 指标看板 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media(min-width:768px){.metric-grid{gap:24px}}
@media(min-width:1024px){.metric-grid{grid-template-columns:repeat(4,1fr)}}
.metric-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 22px;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.metric-num{font-size:clamp(32px,4vw,46px);font-weight:800;line-height:1;letter-spacing:-.02em;display:flex;align-items:baseline;gap:2px}
.metric-num .unit{font-size:19px;font-weight:700;margin-left:2px}
.metric-label{margin-top:10px;font-size:14.5px;color:var(--ink-2);font-weight:600}
.metric-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.trend-up{color:var(--brand-600);font-weight:700}
.trend-down{color:var(--alert);font-weight:700}

/* ---------- 卡片 ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;height:100%}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body p{font-size:15px;color:var(--ink-2)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted)}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
@media(min-width:768px){.bento{gap:24px}}
.bento-a{grid-column:span 12}
.bento-side{grid-column:span 12;display:grid;gap:20px}
@media(min-width:768px){.bento-side{gap:24px}}
.bento-wide{grid-column:span 12}
@media(min-width:1024px){
  .bento-a{grid-column:span 7}
  .bento-side{grid-column:span 5}
}
.bento-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;height:100%;display:flex;flex-direction:column}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.bento-card .idx{position:absolute;top:18px;left:20px;z-index:2;background:var(--ink);color:var(--accent);font-size:12.5px;font-weight:800;letter-spacing:.06em;padding:4px 9px;border-radius:6px}
.bento-card img{width:100%;object-fit:cover}
.bento-a img{aspect-ratio:16/10}
.bento-side .bento-card img{aspect-ratio:16/9}
.bento-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.bento-body p{color:var(--ink-2);font-size:15px}
.bento-wide-card{display:grid;grid-template-columns:1fr;gap:18px;background:var(--brand-900);color:var(--paper);border-radius:var(--radius-card);padding:28px;border:1px solid rgba(247,246,242,.12);transition:transform .25s ease,box-shadow .25s ease}
@media(min-width:1024px){.bento-wide-card{grid-template-columns:1fr auto;align-items:center;padding:32px 36px}}
.bento-wide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.bento-wide-card h3{color:#fff}
.bento-wide-card p{color:rgba(247,246,242,.78);font-size:15px;margin-top:10px}
.bento-wide-card .btn-ghost{border-color:var(--accent);color:var(--accent);border-radius:10px}
.bento-wide-card .btn-ghost:hover{background:var(--accent);color:var(--ink)}

/* ---------- 结果对照 ---------- */
.compare{display:grid;grid-template-columns:1fr;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff}
@media(min-width:768px){.compare{grid-template-columns:1fr 1fr}}
.compare-col{padding:28px 24px}
@media(min-width:1024px){.compare-col{padding:34px 32px}}
.compare-col.left{background:var(--brand-050);border-bottom:1px solid var(--line)}
@media(min-width:768px){.compare-col.left{border-bottom:0;border-right:1px solid var(--line)}}
.compare-col.right{background:var(--paper-2)}
.compare-col h3{font-size:17px;margin-bottom:6px}
.compare-col .cc-sub{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.cmp-row{margin-bottom:20px}
.cmp-row:last-child{margin-bottom:0}
.cmp-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;font-size:14.5px;margin-bottom:8px}
.cmp-head .val{font-weight:800;font-size:15px}
.bar{height:8px;border-radius:999px;background:rgba(15,21,18,.08);overflow:hidden}
.bar span{display:block;height:100%;width:0;border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.bar-l span{background:var(--alert)}
.bar-r span{background:var(--brand-600)}
.cmp-note{margin-top:22px;font-size:13px;color:var(--muted);line-height:1.7}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .25s ease,box-shadow .25s ease;height:100%}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-card .thumb{display:block;overflow:hidden}
.news-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .45s ease}
.news-card:hover .thumb img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-body h3{font-size:18px;line-height:1.45;font-weight:700}
.news-body h3 a{transition:color .2s ease}
.news-body h3 a:hover{color:var(--brand-600)}
.news-sum{font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.75}
.news-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.empty-state{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:56px 24px;text-align:center}
.empty-state .ico{width:52px;height:52px;border-radius:14px;background:var(--brand-050);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:22px;margin:0 auto 18px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;align-items:start}}
.faq-list{border-bottom:1px solid var(--line)}
.faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;background:none;border:0;padding:22px 0 22px 0;text-align:left;font-size:17px;font-weight:700;cursor:pointer;line-height:1.5;position:relative;transition:color .2s ease,padding-left .25s ease}
.faq-q::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:0;background:var(--accent);border-radius:2px;transition:height .25s ease}
.faq-q:hover{color:var(--brand-600)}
.faq-item.open .faq-q{padding-left:16px;color:var(--brand-600)}
.faq-item.open .faq-q::before{height:24px}
.faq-arrow{flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink-2);transition:transform .3s ease,background .25s ease,color .25s ease}
.faq-item.open .faq-arrow{transform:rotate(180deg);background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a p{padding:0 0 22px;font-size:15.5px;color:var(--ink-2)}

/* ---------- 转化表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:1024px){.contact-grid{grid-template-columns:5fr 7fr;gap:56px;align-items:start}}
.trust-list{list-style:none;display:grid;gap:20px;margin-top:28px}
.trust-list li{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start}
.trust-idx{width:30px;height:30px;border-radius:8px;background:var(--brand-050);color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.trust-list strong{display:block;font-size:16px}
.trust-list span{font-size:14.5px;color:var(--ink-2)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-static)}
@media(min-width:768px){.form-card{padding:34px}}
.form-row{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.form-row.two{grid-template-columns:1fr 1fr}}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-input);padding:12px 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(15,107,79,.12)}
.form-tip{font-size:13px;color:var(--muted);margin-top:14px}
.form-msg{display:none;margin-top:16px;padding:12px 14px;border-radius:10px;background:var(--brand-050);color:var(--brand-600);font-size:14px;font-weight:600}
.form-msg.show{display:block}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand-050);border:1px solid rgba(15,107,79,.14);border-radius:var(--radius-card);padding:32px 24px;display:grid;grid-template-columns:1fr;gap:24px;align-items:center}
@media(min-width:1024px){.cta-band{grid-template-columns:1fr auto;padding:44px 48px}}
.cta-band p{margin-top:12px;color:var(--ink-2);font-size:15.5px;max-width:640px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding:56px 0 32px}
@media(min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding:72px 0 40px}}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;color:#fff;letter-spacing:-.02em}
.footer-brand .brand-mark{box-shadow:inset 0 0 0 1px rgba(10,58,44,.9)}
.footer-about{margin-top:14px;font-size:14.5px;color:rgba(247,246,242,.72);max-width:320px;line-height:1.8}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.footer-links{list-style:none;display:grid;gap:11px}
.site-footer a{color:rgba(247,246,242,.76);font-size:14.5px;transition:color .2s ease}
.site-footer a:hover{color:var(--accent)}
.footer-contact{list-style:none;display:grid;gap:12px;font-size:14.5px;color:rgba(247,246,242,.76)}
.footer-contact strong{color:#fff;font-weight:600}
.footer-bottom{border-top:1px solid rgba(247,246,242,.14);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(247,246,242,.6)}
.footer-bottom a{font-size:13px}

/* ---------- 动效 ---------- */
.reveal{opacity:1}
html.js-reveal .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.8,.2,1),transform .5s cubic-bezier(.2,.8,.2,1)}
html.js-reveal .reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  html.js-reveal .reveal{opacity:1;transform:none;transition:none}
  .card:hover,.news-card:hover,.metric-card:hover,.bento-card:hover,.bento-wide-card:hover{transform:none}
  .bar span,.hf-bar span{transition:none}
}

/* roulang page: article */
:root{
  --ink:#0F1512;
  --ink-2:#3C4642;
  --muted:#6B7570;
  --brand-900:#0A3A2C;
  --brand-600:#0F6B4F;
  --brand-050:#E8F1EC;
  --accent:#C6F24E;
  --alert:#FF6A2B;
  --paper:#F7F6F2;
  --paper-2:#EDEBE4;
  --line:rgba(15,21,18,0.10);
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(15,21,18,.06);
  --shadow-2:0 24px 48px -32px rgba(15,21,18,.28);
  --container:1200px;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.num{font-variant-numeric:tabular-nums}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,246,242,.9);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 40px;
  height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:26px;justify-self:start}
.nav-right{display:flex;align-items:center;gap:18px;justify-self:end}
.nav-link{
  position:relative;font-size:14.5px;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--brand-600);transition:left .22s var(--ease),right .22s var(--ease);
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--brand-600);font-weight:700}
.nav-link.is-active::after{left:0;right:0}
.brand{
  display:inline-flex;align-items:center;gap:10px;justify-self:center;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;
}
.brand-mark{width:12px;height:12px;background:var(--accent);border:2px solid var(--brand-900)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),transform .18s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{
  background:var(--brand-600);color:var(--paper);
  height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:700;
}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;color:var(--ink);border:1.5px solid var(--ink);
  height:48px;padding:0 26px;border-radius:10px;font-size:15px;font-weight:700;
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.nav-toggle{
  display:none;width:42px;height:42px;background:transparent;border:1px solid var(--line);
  border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:64px;bottom:0;
  background:var(--paper);border-top:1px solid var(--line);
  padding:26px 22px 40px;overflow:auto;z-index:79;
}
.mobile-panel.is-open{display:block}
.mobile-panel .nav-link{display:block;font-size:17px;padding:14px 0;border-bottom:1px solid var(--line)}
.mobile-panel .nav-link::after{display:none}
.mobile-panel .btn{width:100%;margin-top:22px}

/* ============ ARTICLE HEAD ============ */
.article-hero{
  position:relative;
  background-image:linear-gradient(180deg,rgba(10,58,44,.86),rgba(10,58,44,.72)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:var(--paper);
  padding:56px 0 64px;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;pointer-events:none;
}
.breadcrumb{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(247,246,242,.72);margin-bottom:22px;
}
.breadcrumb a{color:rgba(247,246,242,.72);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--paper)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:700;padding:5px 12px;border-radius:6px;
}
.badge-dark{background:rgba(198,242,78,.14);color:var(--accent)}
.article-title{
  position:relative;z-index:2;
  font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.16;letter-spacing:-.02em;
  max-width:920px;margin:14px 0 22px;color:#fff;
}
.article-meta{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;
  font-size:14px;color:rgba(247,246,242,.78);
}
.article-meta .dot{width:6px;height:6px;background:var(--accent);display:inline-block;margin-right:8px;vertical-align:middle}

/* ============ ARTICLE LAYOUT ============ */
.article-shell{padding:64px 0 80px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;align-items:start;
}
.article-cols{max-width:760px;margin:0 auto;min-width:0}
.cover-figure{margin:0 0 40px}
.cover-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-1)}
.cover-figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:12px}

.article-body{
  font-size:16px;line-height:1.9;color:var(--ink-2);letter-spacing:.01em;
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);font-weight:800;color:var(--ink);
  line-height:1.32;margin:44px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;background:var(--accent);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:700;color:var(--ink);margin:32px 0 12px;line-height:1.4}
.article-body h4{font-size:17px;font-weight:700;color:var(--ink);margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.4em}
.article-body li{margin:.5em 0}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body ul li::marker{color:var(--brand-600)}
.article-body ol li::marker{color:var(--brand-600);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;background:var(--paper-2);
  border-left:4px solid var(--brand-600);border-radius:0 12px 12px 0;color:var(--ink);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:26px auto;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-900)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body code{
  background:var(--paper-2);padding:.15em .42em;border-radius:6px;font-size:13px;
  font-family:ui-monospace,Menlo,Consolas,"Courier New",monospace;color:var(--ink);
}
.article-body pre{
  background:var(--paper-2);padding:18px 20px;border-radius:12px;overflow-x:auto;
  font-size:13px;line-height:1.7;margin:24px 0;
  font-family:ui-monospace,Menlo,Consolas,"Courier New",monospace;
}
.article-body pre code{background:none;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-body th{background:var(--brand-050);color:var(--ink);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:64px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:14px;
  background:var(--brand-050);display:flex;align-items:center;justify-content:center;
  color:var(--brand-600);font-weight:800;font-size:20px;
}
.empty-state h2{font-size:22px;font-weight:800;color:var(--ink);margin-bottom:8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

.toc{
  display:none;position:sticky;top:104px;width:220px;
  border-left:1px solid var(--line);padding-left:20px;
}
.toc-title{font-size:13px;font-weight:800;color:var(--ink);letter-spacing:.06em;margin-bottom:14px}
.toc a{
  display:block;font-size:14px;color:var(--muted);padding:7px 0 7px 12px;
  border-left:2px solid transparent;margin-left:-2px;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.toc a:hover{color:var(--brand-600)}
.toc a.is-current{color:var(--brand-600);border-left-color:var(--brand-600);font-weight:700}

/* ============ CARD / TAGS ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:48px 0 0;padding-top:32px;border-top:1px solid var(--line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);
  background:var(--paper-2);border:1px solid var(--line);border-radius:6px;padding:6px 12px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.tag:hover{background:var(--brand-050);color:var(--brand-600)}
.tag .tag-dot{width:6px;height:6px;background:var(--accent)}

.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
.sec-head h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.015em;line-height:1.22;color:var(--ink)}
.sec-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:620px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:700;font-size:15px;
}
.link-arrow span{transition:transform .2s var(--ease)}
.link-arrow:hover span{transform:translateX(4px)}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px;font-weight:700;line-height:1.4;color:var(--ink)}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.card-foot a{color:var(--brand-600);font-weight:700}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0 22px 0;font-size:17px;font-weight:700;color:var(--ink);
  transition:padding-left .25s var(--ease),color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .arrow{
  flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--brand-600);
  transition:transform .3s var(--ease),background .2s var(--ease);
}
.faq-item[open] summary{padding-left:14px;color:var(--brand-900)}
.faq-item[open] summary .arrow{transform:rotate(180deg);background:var(--brand-050)}
.faq-item summary::before{
  content:"";position:absolute;
}
.faq-item .faq-answer{padding:0 0 24px 0;font-size:15px;color:var(--ink-2);line-height:1.85}
.faq-item[open] .faq-answer{padding-left:14px;border-left:4px solid var(--accent)}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-050);border-radius:var(--radius-card);
  padding:56px 48px;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:32px;align-items:center;border:1px solid rgba(15,107,79,.14);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.22;color:var(--brand-900);letter-spacing:-.015em}
.cta-band p{color:var(--ink-2);font-size:15.5px;margin-top:12px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:22px;font-size:14px;color:var(--brand-900)}
.trust-row span{display:inline-flex;align-items:center;gap:8px}
.trust-row i{width:8px;height:8px;background:var(--accent);display:inline-block}

/* ============ FOOTER ============ */
.site-footer{background:var(--brand-900);color:var(--paper);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,4fr) repeat(3,minmax(0,2.4fr));gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);border-color:var(--accent)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,246,242,.72);max-width:330px}
.footer-title{font-size:13px;font-weight:800;letter-spacing:.08em;color:rgba(247,246,242,.6);margin-bottom:16px}
.footer-links li,.footer-contact li{margin-bottom:11px;font-size:14px;color:rgba(247,246,242,.78)}
.footer-links a{color:rgba(247,246,242,.78);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.footer-contact strong{color:#fff;font-weight:700}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,246,242,.55);
}

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

/* ============ RESPONSIVE ============ */
@media (min-width:1280px){
  .toc{display:block}
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:56px}
}
@media (max-width:1023px){
  .nav-wrap{grid-template-columns:auto 1fr auto;height:64px;padding:0 20px;gap:12px}
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex}
  .brand{font-size:17px}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section-tight{padding:52px 0}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .article-shell{padding:48px 0 64px}
  .article-hero{padding:40px 0 48px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .card-grid{grid-template-columns:1fr}
  .article-title{font-size:clamp(26px,7.6vw,34px)}
  .article-meta{font-size:13px;gap:8px 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn-primary,.btn-ghost{height:46px;padding:0 22px;font-size:14.5px}
  .cta-band{padding:32px 20px}
  .article-body pre{padding:14px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0F1512;
  --ink-2:#3C4642;
  --muted:#6B7570;
  --brand-900:#0A3A2C;
  --brand-600:#0F6B4F;
  --brand-050:#E8F1EC;
  --accent:#C6F24E;
  --alert:#FF6A2B;
  --paper:#F7F6F2;
  --paper-2:#EDEBE4;
  --line:rgba(15,21,18,0.10);
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(15,21,18,.06);
  --shadow-2:0 24px 48px -32px rgba(15,21,18,.28);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
ul{margin:0;padding:0;list-style:none}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.site-header.scrolled{
  background:rgba(247,246,242,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-inner{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  height:72px;
}
.nav-left{display:flex;align-items:center;gap:24px}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:20px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;line-height:1;
  white-space:nowrap;
}
.brand-mark{
  width:12px;height:12px;background:var(--brand-600);border-radius:3px;
  box-shadow:6px -6px 0 -3px var(--accent);
  flex:none;
}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;font-weight:600;color:var(--ink-2);
  padding:6px 2px;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--brand-600);transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--brand-600)}
.nav-link:hover::after{left:0;right:0}
.nav-link.active{color:var(--brand-600)}
.nav-link.active::after{left:0;right:0;background:var(--brand-600)}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:999px;background:var(--brand-600);color:#fff;
  font-size:14px;font-weight:700;white-space:nowrap;
  transition:background .22s ease,transform .22s ease;
}
.nav-cta:hover{background:var(--brand-900);transform:translateY(-2px)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.7);color:var(--ink);
}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;transition:background .2s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .25s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;
  background:var(--paper);padding:24px 20px 40px;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.mobile-panel.open{display:flex}
.mobile-panel a.m-link{
  padding:14px 4px;font-size:17px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link.active{color:var(--brand-600)}
.mobile-panel .btn{margin-top:18px;justify-content:center;width:100%}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:700;line-height:1;
  border:1.5px solid transparent;
  transition:background .22s ease,color .22s ease,transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand-600);font-weight:700;font-size:15px;
}
.link-arrow svg{transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:28px 0 88px;background:var(--paper)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.18;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,246,242,.55) 0%,rgba(247,246,242,.94) 70%,var(--paper) 100%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:28px;
}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:rgba(15,21,18,.28)}
.crumb .now{color:var(--ink);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:700;padding:6px 12px;border-radius:6px;
}
.badge::before{content:"";width:6px;height:6px;background:var(--brand-600);border-radius:2px}
.hero-title{
  font-size:clamp(32px,5vw,58px);font-weight:800;letter-spacing:-.02em;line-height:1.14;
  margin:20px 0 18px;color:var(--ink);
}
.hero-lead{font-size:17px;color:var(--ink-2);line-height:1.85;max-width:600px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.mini-stats{display:flex;flex-wrap:wrap;gap:36px}
.mini-stat{padding-left:14px;position:relative}
.mini-stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--accent);border-radius:2px}
.mini-stat b{display:block;font-size:24px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.mini-stat span{font-size:13px;color:var(--muted)}
.hero-figure{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-float{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(247,246,242,.95);
  border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;display:grid;grid-template-columns:1fr 1fr;gap:14px;
}
.hero-float .fs b{display:block;font-size:22px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}
.hero-float .fs span{font-size:12px;color:var(--muted)}
.pill-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px}
.pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.7);font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.pill:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-2px)}
.pill.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}

/* ---------- Sections ---------- */
.sec{padding:96px 0}
.sec-alt{background:var(--paper-2)}
.sec-deep{background:var(--brand-900);color:var(--paper)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.row{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-title{font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.2;letter-spacing:-.01em;margin:0 0 14px}
.sec-sub{color:var(--ink-2);font-size:16px;max-width:640px}
.sec-deep .sec-title{color:var(--paper)}
.sec-deep .sec-sub{color:rgba(247,246,242,.72)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-600);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent)}

/* ---------- Card grid (分类页 1 主版式) ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.cat-card .thumb{position:relative;overflow:hidden}
.cat-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .thumb img{transform:scale(1.04)}
.cat-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.cat-card h3{font-size:20px;font-weight:800;line-height:1.35;margin:0}
.cat-card .desc{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0}
.key-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.key-list li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.7}
.key-list li::before{
  content:"";position:absolute;left:0;top:.6em;
  width:4px;height:12px;background:var(--accent);border-radius:2px;
}
.cat-card .foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--muted);
}
.cat-card .foot .link-arrow{font-size:14px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;position:relative;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent)}
.step .num{
  font-size:32px;font-weight:800;line-height:1;color:var(--brand-600);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-bottom:14px;
}
.step h3{font-size:19px;font-weight:800;margin:0 0 10px;line-height:1.4}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0}

/* ---------- Compare ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;
}
.compare .col{padding:32px 30px}
.compare .col.left{background:var(--brand-050);border-right:1px solid var(--line)}
.compare .col.right{background:var(--paper-2)}
.compare h3{font-size:19px;font-weight:800;margin:0 0 6px}
.compare .col p.note{font-size:13.5px;color:var(--muted);margin:0 0 22px}
.metric{margin-bottom:22px}
.metric:last-child{margin-bottom:0}
.metric .row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px}
.metric .label{font-size:14px;color:var(--ink-2);font-weight:600}
.metric .val{font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.bar{height:8px;border-radius:999px;background:rgba(15,21,18,.10);overflow:hidden}
.bar i{display:block;height:100%;border-radius:999px;width:0;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.col.left .bar i{background:var(--brand-600)}
.col.right .bar i{background:var(--accent)}
.compare-foot{font-size:13px;color:var(--muted);margin-top:18px}

/* ---------- Fit list ---------- */
.fit-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.fit-item{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 24px 22px;transition:transform .25s ease,box-shadow .25s ease;
}
.fit-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.fit-item .mark{
  flex:none;width:34px;height:34px;border-radius:8px;background:var(--brand-050);
  color:var(--brand-600);font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.fit-item h3{font-size:18px;font-weight:800;margin:0 0 8px}
.fit-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 0;position:relative;
  font-size:17px;font-weight:700;color:var(--ink);
  transition:color .2s ease,padding-left .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;
  background:var(--accent);border-radius:2px;opacity:0;transition:opacity .25s ease;
}
.faq-item summary:hover{color:var(--brand-600)}
.faq-item[open] summary{color:var(--brand-600);padding-left:16px}
.faq-item[open] summary::before{opacity:1}
.faq-item .chev{flex:none;transition:transform .3s ease;color:var(--brand-600)}
.faq-item[open] .chev{transform:rotate(180deg)}
.faq-item .answer{padding:0 0 24px 16px;color:var(--ink-2);font-size:15px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-050);
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:52px 48px;
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;margin:0 0 14px;letter-spacing:-.01em}
.cta-band .lead{color:var(--ink-2);font-size:16px;max-width:520px;margin-bottom:24px}
.trust-list{display:flex;flex-direction:column;gap:14px}
.trust-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.trust-list .sq{
  flex:none;width:22px;height:22px;border-radius:6px;
  background:var(--brand-600);color:#fff;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
  font-variant-numeric:tabular-nums;
}
.form-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-input);padding:12px 14px;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(15,107,79,.12);
}
.form-hint{font-size:13px;color:var(--muted);margin-top:14px}
.form-card .btn{width:100%;margin-top:6px}

/* ---------- Related ---------- */
.related{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.related .pill{background:#fff}

/* ---------- Footer ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding:72px 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--accent);box-shadow:6px -6px 0 -3px rgba(247,246,242,.5)}
.footer-about{color:rgba(247,246,242,.72);font-size:14.5px;line-height:1.85;margin:0;max-width:340px}
.footer-title{font-size:14px;font-weight:800;letter-spacing:.04em;margin-bottom:16px;color:var(--paper)}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(247,246,242,.74);font-size:14.5px;transition:color .2s ease}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{color:rgba(247,246,242,.74);font-size:14.5px;line-height:1.8;margin-bottom:10px}
.footer-contact strong{color:var(--paper);font-weight:700}
.footer-bottom{
  border-top:1px solid rgba(247,246,242,.16);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;font-size:13px;color:rgba(247,246,242,.6);
}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.8,.2,1),transform .5s cubic-bezier(.2,.8,.2,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .sec{padding:80px 0}
}
@media (max-width:1023px){
  .nav-left,.nav-right .nav-links-right,.nav-right .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-inner{height:64px}
  .page-hero{padding:18px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-figure{order:2}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
}
@media (max-width:767px){
  .sec{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare .col.left{border-right:none;border-bottom:1px solid var(--line)}
  .fit-grid{grid-template-columns:1fr}
  .mini-stats{gap:22px}
  .hero-float{position:static;left:auto;right:auto;bottom:auto;margin-top:14px;grid-template-columns:1fr 1fr}
  .hero-figure{box-shadow:var(--shadow-1)}
  .cta-band{padding:32px 20px}
  .form-card{padding:20px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .brand{font-size:17px}
  .hero-actions .btn{width:100%}
  .pill{height:34px;font-size:13.5px}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 28px}
  .cat-card .body{padding:20px 18px 22px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
  .bar i{transition:none}
  *{animation:none !important}
}

/* roulang page: category2 */
:root{
  --ink:#0F1512;
  --ink-2:#3C4642;
  --muted:#6B7570;
  --brand-900:#0A3A2C;
  --brand-600:#0F6B4F;
  --brand-050:#E8F1EC;
  --accent:#C6F24E;
  --alert:#FF6A2B;
  --paper:#F7F6F2;
  --paper-2:#EDEBE4;
  --line:rgba(15,21,18,.10);
  --radius-card:20px;
  --radius-img:14px;
  --radius-input:10px;
  --shadow-s:0 1px 2px rgba(15,21,18,.06);
  --shadow-h:0 24px 48px -32px rgba(15,21,18,.28);
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}
@media(min-width:1024px){.container{padding:0 40px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  height:72px;
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(247,246,242,.94);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.nav-left,.nav-right{display:none;align-items:center;gap:26px;flex:1;}
.nav-right{justify-content:flex-end;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;
  color:var(--paper);white-space:nowrap;
  transition:color .3s ease;
}
.brand-mark{
  width:14px;height:14px;border-radius:3px;background:var(--accent);
  display:inline-block;flex:none;
}
.nav-link{
  position:relative;
  font-size:15px;font-weight:600;
  color:rgba(247,246,242,.84);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);transition:left .2s ease,right .2s ease;
}
.nav-link:hover::after,.nav-link.active::after{left:0;right:0;}
.nav-link.active{color:var(--accent);}
.site-header.scrolled .brand{color:var(--ink);}
.site-header.scrolled .nav-link{color:var(--ink-2);}
.site-header.scrolled .nav-link.active{color:var(--brand-600);}
.site-header.scrolled .nav-link.active::after{background:var(--brand-600);}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  background:rgba(247,246,242,.12);
  border:1px solid rgba(247,246,242,.28);
  color:var(--paper);cursor:pointer;
}
.site-header.scrolled .nav-toggle{background:var(--paper-2);border-color:var(--line);color:var(--ink);}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{
  position:fixed;inset:72px 0 auto 0;z-index:55;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-h);
  padding:18px 20px 26px;
  display:none;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;
  color:var(--ink);border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand-600);}
.mobile-panel .btn{margin-top:18px;width:100%;justify-content:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;
  font-size:15px;font-weight:700;
  padding:0 28px;height:48px;border-radius:999px;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand-600);color:var(--paper);}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-h);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--paper);border:1.5px solid rgba(247,246,242,.6);
}
.btn-ghost:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);transform:translateY(-2px);}
.btn-outline{
  background:transparent;color:var(--ink);border:1.5px solid var(--ink);
}
.btn-outline:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-weight:700;font-size:15px;
}
.link-arrow .arw{transition:transform .2s ease;}
.link-arrow:hover .arw{transform:translateX(4px);}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-block;
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:700;line-height:1;
  padding:8px 12px;border-radius:6px;
}
.badge-inverse{background:rgba(198,242,78,.16);color:var(--accent);}
.pill-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.pill{
  font-size:14px;font-weight:600;
  padding:8px 16px;border-radius:999px;
  border:1px solid rgba(247,246,242,.32);
  color:rgba(247,246,242,.86);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.pill:hover{background:rgba(247,246,242,.14);}
.pill.is-current{background:var(--brand-600);border-color:var(--brand-600);color:var(--paper);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  margin-top:-72px;
  padding:150px 0 84px;
  background:var(--brand-900);
  color:var(--paper);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.24;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(10,58,44,.94) 0%,rgba(10,58,44,.78) 55%,rgba(10,58,44,.6) 100%);
}
.hero-grid{
  position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(247,246,242,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(247,246,242,.5) 1px,transparent 1px);
  background-size:96px 96px;
}
.hero-inner{position:relative;z-index:2;display:grid;gap:40px;}
.hero h1{
  font-size:clamp(32px,5vw,58px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  margin-top:22px;max-width:16em;
}
.hero-sub{
  margin-top:18px;max-width:34em;
  font-size:17px;line-height:1.8;color:rgba(247,246,242,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-metrics{
  display:grid;grid-template-columns:1fr;gap:18px;margin-top:44px;
  border-top:1px solid rgba(247,246,242,.18);padding-top:26px;
}
.hero-metric{position:relative;padding-left:16px;}
.hero-metric::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--accent);border-radius:2px;
}
.hero-metric strong{display:block;font-size:26px;font-weight:800;line-height:1.2;}
.hero-metric span{font-size:13.5px;color:rgba(247,246,242,.7);}
.hero-side{position:relative;}
.hero-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid rgba(247,246,242,.2);
  aspect-ratio:4/3;background:rgba(247,246,242,.06);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;object-position:center;}
.hero-float{
  margin-top:-56px;margin-left:auto;margin-right:auto;
  position:relative;z-index:3;
  width:calc(100% - 36px);max-width:380px;
  background:var(--paper);color:var(--ink);
  border-radius:var(--radius-card);
  padding:20px 22px;box-shadow:var(--shadow-h);
}
.hero-float .float-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em;}
.hero-float .float-row{display:flex;align-items:flex-end;justify-content:space-between;margin-top:12px;gap:12px;}
.hero-float .num{font-size:34px;font-weight:800;line-height:1;letter-spacing:-.02em;}
.hero-float .unit{font-size:13px;color:var(--muted);}
.hero-float .bar{
  margin-top:16px;height:8px;border-radius:999px;background:var(--paper-2);overflow:hidden;
}
.hero-float .bar i{display:block;height:100%;width:0;background:var(--brand-600);border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1);}
.hero-float .bar.alt i{background:var(--accent);}
.hero-float .bar-label{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:6px;}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media(min-width:768px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-alt{background:var(--paper-2);}
.section-dark{background:var(--brand-900);color:var(--paper);}
.section-head{display:grid;gap:14px;margin-bottom:38px;}
.section-head h2{
  font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
.section-head p{color:var(--muted);font-size:16px;max-width:62ch;}
.section-dark .section-head p{color:rgba(247,246,242,.72);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.06em;
}
.section-dark .eyebrow{color:var(--accent);}
.eyebrow::before{content:"";width:18px;height:2px;background:currentColor;display:block;}

/* ---------- 指标卡 ---------- */
.metric-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.metric-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px 20px;position:relative;box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card::before{
  content:"";position:absolute;top:0;left:22px;right:22px;height:3px;background:var(--accent);border-radius:0 0 3px 3px;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);}
.metric-card .m-num{font-size:clamp(34px,4.4vw,46px);font-weight:800;line-height:1.05;letter-spacing:-.02em;}
.metric-card .m-label{font-size:15px;font-weight:700;margin-top:10px;}
.metric-card .m-note{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7;}
.metric-card .m-trend{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:700;margin-top:14px;color:var(--brand-600);}
.metric-card .m-trend.down{color:var(--alert);}

/* ---------- 纵向条目列表 ---------- */
.entry-list{border-top:1px solid var(--line);}
.entry-row{
  display:grid;grid-template-columns:auto 1fr auto;
  gap:16px;align-items:flex-start;
  padding:24px 16px 24px 12px;
  border-bottom:1px solid var(--line);
  transition:background .25s ease,transform .25s ease;
}
.entry-row:hover{background:var(--paper-2);transform:translateY(-2px);}
.entry-index{
  font-size:20px;font-weight:800;color:var(--brand-600);line-height:1.2;letter-spacing:-.02em;
  min-width:38px;
}
.entry-body h3{font-size:20px;font-weight:700;line-height:1.4;}
.entry-body p{margin-top:8px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.entry-tags span{
  font-size:12.5px;font-weight:600;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:4px 9px;
}
.entry-arrow{
  color:var(--brand-600);font-size:20px;line-height:1;padding-top:4px;
  transition:transform .2s ease;
}
.entry-row:hover .entry-arrow{transform:translateX(6px);}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:1fr;gap:20px;}
.flow-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-s);
  transition:transform .25s ease,box-shadow .25s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);}
.flow-step{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  background:var(--brand-050);color:var(--brand-600);
  font-weight:800;font-size:15px;
}
.flow-card h3{font-size:19px;font-weight:700;margin-top:16px;}
.flow-card p{color:var(--ink-2);font-size:15px;margin-top:8px;line-height:1.8;}

/* ---------- 深色图文 ---------- */
.split{display:grid;gap:36px;align-items:center;}
.split-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid rgba(247,246,242,.18);}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.check-list{margin-top:24px;display:grid;gap:16px;}
.check-item{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;}
.check-mark{
  width:26px;height:26px;border-radius:8px;background:rgba(198,242,78,.18);
  color:var(--accent);font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.check-item strong{display:block;font-size:16px;font-weight:700;}
.section-dark .check-item p{font-size:14.5px;color:rgba(247,246,242,.72);margin-top:4px;}

/* ---------- 对照 ---------- */
.compare{
  display:grid;grid-template-columns:1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.compare-col{padding:28px 24px;}
.compare-col.left{background:var(--brand-050);}
.compare-col.right{background:var(--paper-2);}
.compare-col .c-tag{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.04em;}
.compare-col .c-line{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-top:18px;}
.compare-col .c-line .c-val{font-size:26px;font-weight:800;letter-spacing:-.02em;}
.compare-col .c-line .c-key{font-size:14px;color:var(--ink-2);}
.compare-bar{height:8px;border-radius:999px;background:rgba(15,21,18,.08);overflow:hidden;margin-top:10px;}
.compare-bar i{display:block;height:100%;width:0;border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1);}
.compare-col.left .compare-bar i{background:var(--brand-600);}
.compare-col.right .compare-bar i{background:var(--accent);}
.compare-note{margin-top:16px;font-size:13px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;gap:26px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:20px 8px 20px 0;
  font-size:17px;font-weight:700;color:var(--ink);
  transition:color .2s ease,padding-left .2s ease;
}
.faq-q:hover{color:var(--brand-600);}
.faq-item.open .faq-q{color:var(--brand-600);padding-left:14px;position:relative;}
.faq-item.open .faq-q::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:2px;background:var(--accent);
}
.faq-ico{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--brand-600);transition:transform .3s ease,background .2s ease;
}
.faq-item.open .faq-ico{transform:rotate(180deg);background:var(--brand-050);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 0 22px 0;color:var(--ink-2);font-size:15.5px;line-height:1.85;max-width:70ch;
}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand-050);
  border:1px solid rgba(15,107,79,.16);
  border-radius:var(--radius-card);
  padding:40px 26px;
  display:grid;gap:26px;
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;letter-spacing:-.02em;}
.cta-panel p{color:var(--ink-2);font-size:16px;margin-top:12px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.cta-mail{font-size:14px;color:var(--muted);}
.cta-mail strong{color:var(--ink);}

/* ---------- 相关分类 ---------- */
.rel-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.rel-pill{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;
  padding:10px 18px;font-size:14.5px;font-weight:600;
  background:var(--paper);transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.rel-pill:hover{background:var(--brand-600);border-color:var(--brand-600);color:var(--paper);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:-.01em;}
.footer-about{margin-top:16px;font-size:14.5px;line-height:1.85;color:rgba(247,246,242,.68);max-width:34ch;}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--accent);margin-bottom:16px;}
.footer-links li,.footer-contact li{font-size:14.5px;line-height:2;color:rgba(247,246,242,.72);}
.footer-links a{transition:color .2s ease;}
.footer-links a:hover{color:var(--accent);}
.footer-contact strong{color:rgba(247,246,242,.9);font-weight:700;}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(247,246,242,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(247,246,242,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.8,.2,1),transform .5s cubic-bezier(.2,.8,.2,1);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media(min-width:640px){
  .hero-metrics{grid-template-columns:repeat(3,1fr);gap:22px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{padding:46px 40px;}
}
@media(min-width:1024px){
  .nav-left,.nav-right{display:flex;}
  .nav-toggle{display:none;}
  .mobile-panel{display:none !important;}
  .hero{padding:170px 0 96px;}
  .hero-inner{grid-template-columns:1.05fr .95fr;align-items:center;gap:56px;}
  .hero-float{margin:0;position:absolute;left:-28px;bottom:-34px;width:330px;}
  .hero-side{padding:0 0 34px;}
  .metric-grid{grid-template-columns:repeat(4,1fr);}
  .flow-grid{grid-template-columns:repeat(4,1fr);}
  .split{grid-template-columns:1fr 1fr;gap:56px;}
  .compare{grid-template-columns:1fr 1fr;}
  .compare-col.left{border-right:1px solid var(--line);}
  .faq-wrap{grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
  .cta-panel{grid-template-columns:1.2fr 1fr;align-items:center;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
  .section-head{margin-bottom:48px;}
}
@media(max-width:520px){
  .brand{font-size:16px;}
  .hero{padding:126px 0 64px;}
  .entry-row{grid-template-columns:auto 1fr;padding:20px 8px;}
  .entry-arrow{display:none;}
  .hero-float{max-width:none;width:calc(100% - 24px);}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#0F1512;
  --ink-2:#3C4642;
  --muted:#6B7570;
  --brand-900:#0A3A2C;
  --brand-600:#0F6B4F;
  --brand-050:#E8F1EC;
  --accent:#C6F24E;
  --alert:#FF6A2B;
  --paper:#F7F6F2;
  --paper-2:#EDEBE4;
  --line:rgba(15,21,18,0.10);
  --r-card:20px;
  --r-img:14px;
  --r-input:10px;
  --shadow-1:0 1px 2px rgba(15,21,18,.06);
  --shadow-2:0 24px 48px -32px rgba(15,21,18,.28);
  --font-sans:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",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);
  background:var(--paper);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:4px}

body .container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1023px){ body .container{padding-left:24px;padding-right:24px} }
@media (max-width:640px){ body .container{padding-left:20px;padding-right:20px} }

/* ============ 顶部公告 ============ */
.topbar{background:var(--brand-900);color:rgba(247,246,242,.92);font-size:13.5px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding-top:6px;padding-bottom:6px}
.topbar strong{color:var(--accent);font-weight:700}
.topbar-close{background:none;border:0;color:rgba(247,246,242,.6);cursor:pointer;font-size:18px;line-height:1;padding:4px 8px;border-radius:6px;transition:color .2s,background .2s}
.topbar-close:hover{color:var(--paper);background:rgba(247,246,242,.12)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,246,242,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 2px rgba(15,21,18,.06);background:rgba(247,246,242,.95)}
.header-inner{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-left{display:flex;align-items:center;gap:26px;justify-self:start}
.nav-right{display:flex;align-items:center;gap:20px;justify-self:end}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--brand-600);transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{left:0;right:0}
.nav-link.is-active{color:var(--brand-600)}
.nav-link.is-active::after{left:0;right:0}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
  justify-self:center;white-space:nowrap;
}
.brand-mark{
  width:12px;height:12px;border-radius:3px;
  background:var(--brand-600);box-shadow:8px 0 0 -2px var(--accent);
  margin-right:8px;flex:none;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--paper);cursor:pointer;flex-direction:column;justify-content:center;
  align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s 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)}
.mobile-panel{
  display:none;
  position:fixed;left:0;right:0;top:64px;bottom:0;
  background:var(--paper);
  z-index:75;
  padding:24px 20px 40px;
  overflow-y:auto;
  flex-direction:column;gap:4px;
}
.mobile-panel.is-open{display:flex}
.mobile-panel .nav-link{font-size:17px;padding:14px 0;border-bottom:1px solid var(--line)}
.mobile-panel .btn{margin-top:20px;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:700;font-size:15px;line-height:1;
  border:0;cursor:pointer;border-radius:999px;
  transition:background .22s ease,color .22s ease,transform .18s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--brand-600);color:#fff;height:48px;padding:0 28px}
.btn-primary:hover{background:var(--brand-900);transform:translateY(-2px);box-shadow:0 18px 32px -24px rgba(10,58,44,.9)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);height:48px;padding:0 26px;border-radius:10px}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:700;font-size:15px}
.link-arrow span[aria-hidden]{transition:transform .2s ease}
.link-arrow:hover span[aria-hidden]{transform:translateX(4px)}

/* ============ 页面头部 Hero ============ */
.page-hero{
  position:relative;
  background-color:var(--brand-900);
  background-image:linear-gradient(118deg,rgba(10,58,44,.95) 12%,rgba(15,21,18,.78) 78%),url(/assets/images/backpic/back-1.png);
  background-size:cover;
  background-position:center;
  color:var(--paper);
  padding:76px 0 68px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(247,246,242,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(247,246,242,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(247,246,242,.62);margin-bottom:22px}
.crumb a:hover{color:var(--accent)}
.crumb .sep{opacity:.5}
.crumb .current{color:rgba(247,246,242,.92)}
.channel-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(198,242,78,.14);
  border:1px solid rgba(198,242,78,.4);
  color:var(--accent);
  font-size:13px;font-weight:700;
  padding:6px 14px;border-radius:6px;
  margin-bottom:20px;
}
.channel-badge::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent)}
.page-hero h1{
  font-size:clamp(32px,5vw,56px);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.02em;
  max-width:18em;
}
.page-hero h1 .h1-light{color:var(--accent)}
.hero-lead{
  margin-top:20px;
  max-width:44em;
  font-size:17px;
  line-height:1.9;
  color:rgba(247,246,242,.82);
}
.hero-subline{
  margin-top:14px;
  font-size:14px;
  color:rgba(247,246,242,.6);
}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}
.pill{
  display:inline-flex;align-items:center;
  padding:8px 18px;border-radius:999px;
  font-size:14px;font-weight:600;
  border:1px solid rgba(247,246,242,.3);
  color:rgba(247,246,242,.85);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.pill:hover{background:rgba(247,246,242,.12);color:#fff}
.pill.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.pill-light{border-color:var(--line);color:var(--ink-2);background:var(--paper)}
.pill-light:hover{background:var(--paper-2);color:var(--ink)}
.pill-light.is-active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:48px}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);
  letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px;
}
.section-label::before{content:"";width:4px;height:14px;background:var(--accent);border-radius:2px}
.section-title{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;
}
.section-desc{margin-top:16px;color:var(--ink-2);font-size:16px;line-height:1.9}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 指标卡 ============ */
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.metric-card{
  position:relative;overflow:hidden;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 28px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent)}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.metric-num{
  font-size:clamp(40px,4.4vw,54px);
  font-weight:800;line-height:1.05;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
  display:inline-flex;align-items:baseline;gap:6px;
}
.metric-unit{font-size:16px;font-weight:700;color:var(--brand-600)}
.metric-title{margin-top:12px;font-size:17px;font-weight:700}
.metric-desc{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 2×2 内容卡 ============ */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.content-card{
  display:flex;flex-direction:column;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .28s ease,box-shadow .28s ease;
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.content-card:hover .card-media img{transform:scale(1.04)}
.card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,58,44,0) 45%,rgba(10,58,44,.42) 100%);
}
.card-index{
  position:absolute;top:16px;left:16px;z-index:2;
  background:rgba(10,58,44,.86);color:var(--accent);
  font-size:13px;font-weight:800;letter-spacing:.06em;
  padding:5px 12px;border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.card-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:14px;flex:1}
.badge{
  display:inline-flex;align-items:center;
  background:var(--brand-050);color:var(--brand-600);
  font-size:13px;font-weight:700;
  padding:5px 12px;border-radius:6px;
}
.card-title{font-size:21px;font-weight:700;line-height:1.4}
.card-text{font-size:15px;color:var(--ink-2);line-height:1.85}
.point-list{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:6px}
.point-list li{
  position:relative;padding-left:16px;
  font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:4px;height:4px;border-radius:1px;background:var(--accent);
}

/* ============ 场景条目列表 ============ */
.scene-list{border-top:1px solid var(--line)}
.scene-row{
  display:grid;grid-template-columns:72px 1fr 220px 24px;
  align-items:center;gap:20px;
  padding:26px 18px;
  border-bottom:1px solid var(--line);
  transition:background .22s ease,transform .22s ease;
}
.scene-row:hover{background:var(--paper-2);transform:translateX(4px)}
.scene-num{
  font-size:22px;font-weight:800;color:var(--brand-600);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.scene-title{font-size:18px;font-weight:700}
.scene-desc{margin-top:6px;font-size:15px;color:var(--ink-2);line-height:1.8}
.scene-tag{font-size:13.5px;color:var(--muted);text-align:right}
.scene-arrow{color:var(--brand-600);font-size:18px;transition:transform .22s ease}
.scene-row:hover .scene-arrow{transform:translateX(4px)}

/* ============ 流程步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.step-title{margin-top:14px;font-size:18px;font-weight:700}
.step-text{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.step-bar{margin-top:20px;height:4px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.step-bar i{display:block;height:100%;width:0;background:var(--brand-600);border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.step-card.is-visible .step-bar i{width:var(--w,70%)}

/* ============ 对照区 ============ */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--paper);
}
.compare-col{padding:36px 32px}
.compare-col.left{background:var(--paper-2)}
.compare-col.right{background:var(--brand-050);border-left:1px solid var(--line)}
.compare-head{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--muted)}
.compare-col.right .compare-head{color:var(--brand-600)}
.compare-list{margin-top:22px;display:flex;flex-direction:column;gap:20px}
.compare-item{display:flex;gap:14px}
.compare-mark{
  flex:none;width:24px;height:24px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;
}
.compare-col.left .compare-mark{background:rgba(15,21,18,.08);color:var(--muted)}
.compare-col.right .compare-mark{background:var(--brand-600);color:#fff}
.compare-item p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.compare-col.right .compare-item p{color:var(--ink)}
.compare-note{margin-top:24px;font-size:13.5px;color:var(--muted)}
.compare-bars{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.bar-row{font-size:14px;color:var(--ink-2)}
.bar-track{margin-top:8px;height:8px;border-radius:999px;background:rgba(15,21,18,.08);overflow:hidden}
.bar-track i{display:block;height:100%;width:0;border-radius:999px;transition:width .9s cubic-bezier(.2,.8,.2,1)}
.bar-row.dark i{background:var(--brand-600)}
.bar-row.lime i{background:var(--accent)}
.compare.is-visible .bar-row.dark i{width:var(--w,68%)}
.compare.is-visible .bar-row.lime i{width:var(--w,88%)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:24px 0 24px 0;text-align:left;
  font-size:17px;font-weight:700;line-height:1.6;color:var(--ink);
  border-left:4px solid transparent;padding-left:0;
  transition:color .2s ease,border-color .2s ease,padding-left .25s ease;
}
.faq-q:hover{color:var(--brand-600)}
.faq-item.is-open .faq-q{border-left-color:var(--accent);padding-left:16px;color:var(--brand-900)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--brand-600);font-weight:700;
  transition:transform .3s ease,background .25s ease,color .25s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 0 26px 0;font-size:15.5px;color:var(--ink-2);line-height:1.9;max-width:44em}
.faq-item.is-open .faq-a-inner{padding-left:16px}

/* ============ CTA + 表单 ============ */
.cta-band{
  background:var(--brand-050);
  border:1px solid rgba(15,107,79,.16);
  border-radius:28px;
  padding:48px;
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.25;letter-spacing:-.02em}
.cta-band p{margin-top:16px;font-size:15.5px;color:var(--ink-2);line-height:1.9}
.trust-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.trust-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2)}
.trust-num{
  flex:none;width:22px;height:22px;border-radius:6px;background:var(--brand-600);color:#fff;
  font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.form-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px;
  box-shadow:var(--shadow-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-input);
  font-size:15px;line-height:1.5;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:96px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(15,107,79,.14);
}
.form-note{margin-top:14px;font-size:13.5px;color:var(--muted)}
.form-status{margin-top:14px;font-size:14px;font-weight:700;color:var(--brand-600);display:none}
.form-status.is-show{display:block}

/* ============ 相关分类 ============ */
.related-block{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.related-title{font-size:14px;font-weight:800;color:var(--muted);letter-spacing:.06em}
.related-pills{display:flex;gap:12px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:var(--paper);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--paper)}
.footer-about{margin-top:16px;font-size:14.5px;line-height:1.9;color:rgba(247,246,242,.68);max-width:26em}
.footer-title{font-size:14px;font-weight:800;letter-spacing:.08em;color:var(--accent);margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14.5px;color:rgba(247,246,242,.72);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{font-size:14.5px;color:rgba(247,246,242,.72);margin-bottom:12px;line-height:1.8}
.footer-contact strong{color:rgba(247,246,242,.92);font-weight:700}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(247,246,242,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,242,.58);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.8,.2,1),transform .5s cubic-bezier(.2,.8,.2,1)}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .scene-row{grid-template-columns:64px 1fr 24px}
  .scene-tag{display:none}
}
@media (max-width:1023px){
  .nav-left,.nav-right{display:none}
  .nav-toggle{display:flex}
  .header-inner{display:flex;justify-content:center;position:relative;height:64px}
  .nav-toggle{position:absolute;right:0;top:50%;transform:translateY(-50%)}
  .nav-toggle.is-open{transform:translateY(-50%)}
  .section{padding:72px 0}
  .metric-row{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .page-hero{padding:56px 0 52px}
}
@media (max-width:767px){
  .grid-2x2{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .compare-col.right{border-left:0;border-top:1px solid var(--line)}
  .compare-col{padding:28px 22px}
  .form-grid{grid-template-columns:1fr}
  .topbar-inner{font-size:12.5px}
}
@media (max-width:520px){
  .metric-row{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .page-hero{padding:44px 0 44px}
  .hero-lead{font-size:16px}
  .scene-row{grid-template-columns:48px 1fr 20px;gap:14px;padding:22px 10px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}