/* roulang page: index */
:root{
  --brand-900:#0B3028;
  --brand-700:#12493C;
  --brand-500:#1E6B58;
  --accent-400:#D8F26A;
  --cta-500:#F2713C;
  --cta-600:#DD5F2C;
  --bg:#F6F8F5;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EC;
  --line:#DDE5E0;
  --ink-900:#101C19;
  --ink-700:#2C3B36;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-sm:0 1px 2px rgba(16,28,25,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,25,.18);
  --shadow-lg:0 24px 60px -28px rgba(11,48,40,.35);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --sec:96px;
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,a,li,span,div,input,textarea,select,button,label{
  font-family:var(--font-sans);
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:800;letter-spacing:.005em}
p{margin:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
img{max-width:100%;display:block}
ul{margin:0;padding:0;list-style:none}
button{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{
  outline:3px solid rgba(242,113,60,.35);
  outline-offset:2px;
  border-radius:6px;
}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section--alt{background:var(--surface-alt)}
.section--surface{background:var(--surface)}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;transition:height .25s ease}
.site-header.is-scrolled .brandbar-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink-900);font-weight:800;font-size:20px;letter-spacing:.01em;white-space:nowrap}
.logo:hover{color:var(--brand-700)}
.logo-mark{width:36px;height:36px;flex:0 0 36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(138deg,var(--brand-700),var(--brand-500));color:var(--accent-400)}
.logo-sub{font-size:12px;font-weight:600;color:var(--ink-400);letter-spacing:.04em;padding-left:10px;margin-left:2px;border-left:1px solid var(--line);line-height:1.2}
.brand-actions{display:flex;align-items:center;gap:14px}
.brand-phone{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-700);font-weight:700;font-variant-numeric:tabular-nums}
.brand-phone i{color:var(--brand-500)}
.channelbar{border-top:1px solid var(--line)}
.channelbar-inner{display:flex;align-items:center;gap:6px;height:54px;overflow-x:auto;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{position:relative;display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-600);white-space:nowrap;transition:background .2s ease,color .2s ease}
.channel:hover{background:var(--surface-alt);color:var(--brand-700)}
.channel.is-active{background:var(--surface-alt);color:var(--brand-700);font-weight:800}
.channel.is-active::after{content:"";position:absolute;left:18px;right:18px;bottom:-9px;height:2px;border-radius:2px;background:var(--accent-400)}
.channel-tail{margin-left:auto;display:flex;align-items:center;gap:10px;padding-left:12px}
.channel-search{position:relative}
.channel-search input{height:36px;width:190px;padding:0 14px 0 34px;border-radius:999px;border:1.5px solid var(--line);background:var(--surface-alt);font-size:14px;color:var(--ink-700)}
.channel-search input:focus{background:var(--surface);border-color:var(--brand-500)}
.channel-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--ink-400)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);color:var(--brand-700);font-size:17px;align-items:center;justify-content:center}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:16px;font-weight:700;line-height:1;border:1.5px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn-primary{background:var(--cta-500);color:#fff}
.btn-primary:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(242,113,60,.8)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-700);color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px}
.link-more:hover{color:var(--brand-500)}

/* ---------- generic bits ---------- */
.pill{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-700)}
.pill--dark{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:var(--accent-400)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--accent-400);color:var(--ink-900);font-size:13px;font-weight:700;letter-spacing:.02em}
.badge--soft{background:var(--surface-alt);color:var(--brand-700)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .pill{margin-bottom:18px}
.sec-head h2{font-size:28px;margin-bottom:14px}
.sec-head p{color:var(--ink-600)}
.eyebrow{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--cta-500);text-transform:uppercase;margin-bottom:16px;display:block}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--surface);padding:78px 0 88px}
.hero::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center;opacity:.09;pointer-events:none}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(11,48,40,.06) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none}
.hero .wrap{position:relative;z-index:2}
.hero-copy h1{font-size:38px;margin:20px 0 18px;letter-spacing:-.01em}
.hero-copy .lead{font-size:18px;color:var(--ink-600);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.trustbar{display:flex;flex-wrap:wrap;gap:0;align-items:stretch;border-top:1px solid var(--line);padding-top:22px}
.trust-item{padding-right:26px;margin-right:26px;border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0;margin-right:0;padding-right:0}
.trust-item b{display:block;font-size:24px;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.trust-item span{font-size:13px;color:var(--ink-400)}
.hero-visual{position:relative}
.hero-visual .frame{border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3;background:var(--surface-alt)}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-float{position:absolute;left:-18px;bottom:26px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);padding:14px 18px;display:flex;align-items:center;gap:12px}
.hero-float i{width:38px;height:38px;border-radius:11px;background:var(--surface-alt);color:var(--brand-700);display:grid;place-items:center;font-size:16px}
.hero-float b{display:block;font-size:15px;color:var(--ink-900);line-height:1.3}
.hero-float span{font-size:12px;color:var(--ink-400)}

/* ---------- pain points ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pain-card{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cta-500);border-radius:12px;padding:24px 26px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.pain-card h3{font-size:19px;margin-bottom:10px;display:flex;align-items:flex-start;gap:10px}
.pain-card h3 i{color:var(--cta-500);font-size:17px;margin-top:5px}
.pain-card p{font-size:16px;color:var(--ink-600)}

/* ---------- solution cards (asymmetric) ---------- */
.sol-main{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);height:100%;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.sol-main:hover,.sol-mini:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C9D6CF}
.sol-main:hover .card-title,.sol-mini:hover .card-title{color:var(--brand-700)}
.sol-main .card-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt)}
.sol-main .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.sol-main:hover .card-media img{transform:scale(1.03)}
.sol-main .card-body{padding:28px 30px 30px;display:flex;flex-direction:column;gap:14px;flex:1}
.sol-mini{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 26px 24px;box-shadow:var(--shadow-sm);display:flex;gap:18px;align-items:flex-start;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.sol-stack{display:grid;gap:20px;height:100%;align-content:stretch}
.sol-mini .ico{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--surface-alt);color:var(--brand-700);display:grid;place-items:center;font-size:18px}
.sol-mini h3{font-size:19px;margin-bottom:8px}
.sol-mini p{font-size:16px;margin-bottom:12px}
.sol-mini .idx{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--ink-400);display:block;margin-bottom:8px}
.card-title{font-size:22px;margin-bottom:0;transition:color .2s ease}

/* ---------- route / steps ---------- */
.route{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;position:relative;margin-top:10px}
.route::before{content:"";position:absolute;left:6%;right:6%;top:27px;height:2px;background:repeating-linear-gradient(90deg,var(--line) 0 10px,transparent 10px 18px)}
.route-node{position:relative;padding:0 18px;text-align:center}
.route-num{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:var(--surface);border:2px solid var(--brand-700);color:var(--brand-700);display:grid;place-items:center;font-size:19px;font-weight:800;position:relative;z-index:2;font-variant-numeric:tabular-nums}
.route-node h3{font-size:17px;margin-bottom:8px}
.route-node p{font-size:15px;color:var(--ink-600)}
.route-progress{height:8px;border-radius:999px;background:var(--surface-alt);overflow:hidden;margin-top:44px}
.route-progress i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--accent-400))}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:30px 26px;box-shadow:var(--shadow-sm)}
.stat-num{font-size:42px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.1;display:flex;align-items:baseline;gap:8px}
.stat-num em{font-style:normal;font-size:13px;font-weight:700;color:var(--brand-700);border:1px solid var(--accent-400);background:rgba(216,242,106,.22);border-radius:999px;padding:2px 9px;letter-spacing:.02em}
.stat-card span{display:block;margin-top:12px;font-size:14px;color:var(--ink-400)}

/* ---------- security dark block ---------- */
.dark-block{position:relative;background:var(--brand-900);color:rgba(255,255,255,.78);overflow:hidden}
.dark-block::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-3.webp);background-size:cover;background-position:center;opacity:.16}
.dark-block::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,48,40,.96),rgba(11,48,40,.72))}
.dark-block .wrap{position:relative;z-index:2}
.dark-block h2{color:#fff;font-size:28px;margin-bottom:14px}
.dark-block .sec-head p{color:rgba(255,255,255,.7)}
.zone-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.zone-tag{display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 14px;border-radius:999px;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);font-size:13px;font-weight:700;color:var(--accent-400);letter-spacing:.06em}
.check-list{display:grid;gap:14px}
.check-list li{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:16px 18px;font-size:15.5px;color:rgba(255,255,255,.82);transition:background .2s ease,border-color .2s ease}
.check-list li:hover{background:rgba(255,255,255,.1);border-color:rgba(216,242,106,.4)}
.check-list i{color:var(--accent-400);margin-top:6px;font-size:14px}
.check-list b{color:#fff;display:block;font-size:16px;margin-bottom:2px}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:26px}
.news-lead{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C9D6CF}
.news-lead .card-media{aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt)}
.news-lead .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-lead:hover .card-media img{transform:scale(1.03)}
.news-lead .body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-lead h3{font-size:21px;transition:color .2s ease}
.news-lead:hover h3{color:var(--brand-700)}
.news-side{display:grid;gap:26px;align-content:start}
.news-item{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#C9D6CF}
.news-item .thumb{aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:var(--surface-alt)}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-item:hover .thumb img{transform:scale(1.04)}
.news-item h3{font-size:17px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.news-item:hover h3{color:var(--brand-700)}
.news-item p{font-size:14.5px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:10px}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--ink-400)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.empty-state{background:var(--surface-alt);border:1px dashed var(--line);border-radius:var(--radius-card);height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--ink-400);grid-column:1/-1}
.empty-state i{font-size:48px;color:var(--line)}
.empty-state b{color:var(--ink-700);font-size:17px}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq .accordion{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm)}
.faq .accordion-item{border-bottom:1px solid var(--line)}
.faq .accordion-item:last-child{border-bottom:0}
.faq .accordion-title{display:flex;align-items:center;gap:14px;padding:20px 24px;font-size:17px;font-weight:700;color:var(--ink-900);background:transparent;border:0;line-height:1.5;transition:background .2s ease,color .2s ease}
.faq .accordion-title:hover{background:var(--surface-alt);color:var(--brand-700)}
.faq .accordion-title .q-idx{flex:0 0 auto;font-size:13px;font-weight:800;color:var(--cta-500);letter-spacing:.1em;font-variant-numeric:tabular-nums}
.faq .accordion-title::before{content:"+";position:static;margin:0 0 0 auto;font-size:22px;line-height:1;font-weight:400;color:var(--brand-700);order:3}
.faq .accordion-item.is-active .accordion-title{background:var(--surface-alt);color:var(--brand-700)}
.faq .accordion-item.is-active .accordion-title::before{content:"−"}
.faq .accordion-content{padding:0 24px 22px 24px;border:0;background:var(--surface);color:var(--ink-600);font-size:16px;line-height:1.9}

/* ---------- cta ---------- */
.cta-band{background:linear-gradient(135deg,var(--brand-700),var(--brand-500));border-radius:22px;padding:52px 48px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
.cta-band::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(216,242,106,.14)}
.cta-band::after{content:"";position:absolute;left:-60px;bottom:-100px;width:220px;height:220px;border-radius:50%;background:rgba(242,113,60,.16)}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center}
.cta-band h2{color:#fff;font-size:27px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.82);max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.privacy-line{display:flex;align-items:flex-start;gap:10px;margin-top:22px;font-size:13px;color:var(--ink-400);line-height:1.7}
.privacy-line i{color:var(--brand-500);margin-top:4px}

/* ---------- reveal form ---------- */
.reveal{border-radius:16px;border:0;box-shadow:var(--shadow-lg);padding:0;max-width:560px}
.reveal-overlay{background:rgba(11,48,40,.55)}
.modal-head{background:var(--brand-900);color:#fff;padding:26px 30px;border-radius:16px 16px 0 0}
.modal-head h3{color:#fff;font-size:20px;margin-bottom:6px}
.modal-head p{color:rgba(255,255,255,.72);font-size:14px}
.modal-body{padding:26px 30px 30px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:700;color:var(--ink-700);margin-bottom:8px}
.field input[type=text],.field input[type=tel],.field select,.field textarea{
  width:100%;border:1.5px solid var(--line);border-radius:10px;background:var(--surface);padding:12px 14px;font-size:15px;color:var(--ink-900);line-height:1.6;height:auto;
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);outline:none;box-shadow:0 0 0 3px rgba(30,107,88,.12)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.checkbox{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-600);line-height:1.7}
.checkbox input{margin-top:5px;accent-color:var(--brand-700)}
.reveal .close-button{color:#fff;top:16px;right:18px;font-size:22px}
.hint{font-size:13px;color:var(--ink-400);margin-top:8px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;letter-spacing:.02em}
.site-footer .flogo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;margin-bottom:16px}
.site-footer .flogo .logo-mark{background:linear-gradient(138deg,var(--accent-400),#A8C94A);color:var(--brand-900)}
.site-footer p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.66)}
.footer-links li{margin-bottom:11px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-links a:hover{color:var(--accent-400)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:13px;font-size:14.5px}
.footer-contact i{color:var(--accent-400);margin-top:6px;font-size:13px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.55)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec:72px}
  .hero{padding:56px 0 64px}
  .hero-copy h1{font-size:32px}
  .route{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 0}
  .route::before{display:none}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-inner{grid-template-columns:1fr}
  .brand-phone{display:none}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .channelbar{display:none}
  .brand-actions .btn-ghost{display:none}
}
@media (max-width:640px){
  :root{--sec:56px}
  body{font-size:16px}
  .wrap{padding:0 18px}
  .brandbar-inner{height:64px}
  .logo{font-size:17px}
  .logo-sub{display:none}
  .hero-copy h1{font-size:27px}
  .hero-copy .lead{font-size:16px}
  .hero-float{left:0;bottom:12px;padding:11px 14px}
  .sec-head h2{font-size:22px}
  .pain-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:14px}
  .stat-num{font-size:32px}
  .route{grid-template-columns:1fr;gap:28px}
  .news-item{grid-template-columns:96px minmax(0,1fr);padding:14px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .cta-band{padding:34px 24px;border-radius:16px}
  .cta-band h2{font-size:21px}
  .cta-actions .btn{width:100%}
  .field-row{grid-template-columns:1fr}
  .modal-body{padding:22px 20px 26px}
  .modal-head{padding:22px 20px}
  .hero-cta .btn{flex:1 1 auto}
}
@media (max-width:400px){
  .stat-grid{grid-template-columns:1fr}
}

/* ---------- mobile drawer ---------- */
.drawer{position:fixed;top:0;right:0;height:100%;width:86%;max-width:340px;background:var(--surface);z-index:120;transform:translateX(105%);transition:transform .28s ease;box-shadow:var(--shadow-lg);padding:24px 22px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-head b{color:var(--ink-900);font-size:17px}
.drawer-close{width:40px;height:40px;border-radius:11px;border:1.5px solid var(--line);background:var(--surface);color:var(--brand-700);font-size:16px}
.drawer nav a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:11px;color:var(--ink-700);font-weight:700;font-size:16px}
.drawer nav a:hover,.drawer nav a.is-active{background:var(--surface-alt);color:var(--brand-700)}
.drawer .drawer-cta{margin-top:20px;display:grid;gap:12px}
.drawer-mask{position:fixed;inset:0;background:rgba(11,48,40,.5);z-index:110;opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* roulang page: article */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --brand-900:#0B3028;
  --brand-700:#12493C;
  --brand-500:#1E6B58;
  --accent-400:#D8F26A;
  --cta-500:#F2713C;
  --cta-600:#DD5F2C;
  --bg:#F6F8F5;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EC;
  --line:#DDE5E0;
  --ink-900:#101C19;
  --ink-700:#2C3B36;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,28,25,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,25,.18);
  --shadow-lg:0 22px 48px -28px rgba(16,28,25,.35);
  --container:1200px;
  --gap:24px;
  --sec-desktop:96px;
  --sec-tablet:72px;
  --sec-mobile:56px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

/* ============================================================
   基础 reset
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink-600);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;background:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:15px;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
::selection{background:var(--accent-400);color:var(--ink-900);}
:focus-visible{outline:3px solid rgba(242,113,60,.35);outline-offset:2px;border-radius:4px;}
.button,.btn{background-image:none;}

/* 覆盖 Foundation 默认观感 */
body,.button,button,.accordion-title,.reveal{font-family:var(--font);}
a.button,a.button:hover{color:#fff;}
.accordion{background:transparent;border:none;margin:0;}
.accordion-title{
  border:none;
  padding:20px 46px 20px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  background:transparent;
  border-bottom:1px solid var(--line);
  transition:color .2s ease,background .2s ease;
}
.accordion-title:hover{background:var(--surface-alt);color:var(--brand-700);}
.accordion-title::before{
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:18px;
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  content:"\2b";
  color:var(--ink-400);
}
.accordion-item.is-active .accordion-title::before{content:"\f068";color:var(--cta-500);}
.accordion-content{
  border-bottom:1px solid var(--line);
  background:transparent;
  padding:4px 22px 20px;
  color:var(--ink-600);
  font-size:15.5px;
}
.accordion-content p:last-child{margin-bottom:0;}
.reveal{border-radius:16px;border:none;box-shadow:var(--shadow-lg);padding:32px;}
.reveal-overlay{background:rgba(11,48,40,.55);}

/* ============================================================
   容器与通用
   ============================================================ */
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gap);}
.section{padding:var(--sec-desktop) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;text-transform:none;
  color:var(--brand-700);background:var(--surface-alt);
  border:1px solid var(--line);
  padding:6px 14px;border-radius:var(--radius-pill);
  font-weight:600;margin-bottom:14px;
}
.section-head h2{font-size:28px;margin-bottom:12px;}
.section-head p{color:var(--ink-600);font-size:16px;margin:0;}
.divider{height:1px;background:var(--line);border:none;margin:0;}

/* ============================================================
   按钮 / 标签 / 徽章
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;border-radius:var(--radius-btn);
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  text-align:center;
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 10px 22px -14px rgba(242,113,60,.9);}
.btn-primary:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-700);color:#fff;}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:var(--accent-400);color:var(--brand-900);}
.btn-block{width:100%;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--accent-400);color:var(--ink-900);
}
.tag--outline{background:transparent;border:1px solid var(--line);color:var(--ink-400);font-weight:500;}
.textlink{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1.5px;
}
.textlink:hover{color:var(--brand-500);}
.textlink i{font-size:12px;transition:transform .2s ease;}
.textlink:hover i{transform:translateX(3px);}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm);}
.brandbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:74px;gap:20px;
  transition:min-height .25s ease;
}
.site-header.is-scrolled .brandbar-inner{min-height:62px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:.01em;}
.logo:hover{color:var(--brand-700);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:var(--accent-400);
}
.logo-sub{
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-700);background:var(--surface-alt);
  border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:3px 10px;
}
.brand-actions{display:flex;align-items:center;gap:12px;}
.brand-phone{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--ink-400);}
.brand-phone i{color:var(--brand-500);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1.5px solid var(--line);background:var(--surface);color:var(--ink-900);
  align-items:center;justify-content:center;font-size:17px;
}
.channelbar{border-top:1px solid var(--line);background:var(--surface);}
.channelbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:54px;}
.channelbar-inner > .channel,
.channelbar-inner > .channel-tail{flex:none;}
.channel{
  display:inline-flex;align-items:center;
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-700);
  padding:16px 4px;margin-right:26px;
  border-bottom:2px solid transparent;
}
.channel:hover{color:var(--brand-700);}
.channel.is-active{color:var(--brand-700);border-bottom-color:var(--accent-400);}
.channel-tail{margin-left:auto;}
.channel-search{
  display:flex;align-items:center;gap:8px;
  background:var(--surface-alt);border:1px solid var(--line);
  border-radius:var(--radius-pill);padding:7px 16px;min-width:230px;
}
.channel-search i{color:var(--ink-400);font-size:13px;}
.channel-search input{
  border:none;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink-700);line-height:1.4;
}
.channel-search input::placeholder{color:var(--ink-400);}

/* ============================================================
   文章页头部
   ============================================================ */
.article-hero{
  background:
    radial-gradient(circle at 12% 18%, rgba(216,242,106,.20), transparent 42%),
    linear-gradient(160deg,var(--brand-900) 0%, var(--brand-700) 62%, var(--brand-500) 100%);
  color:#fff;position:relative;overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size:26px 26px;opacity:.4;
}
.article-hero .wrap{position:relative;z-index:2;padding-top:52px;padding-bottom:56px;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:20px;}
.crumbs a{color:rgba(255,255,255,.86);}
.crumbs a:hover{color:var(--accent-400);}
.crumbs span.sep{opacity:.55;}
.crumbs .current{color:rgba(255,255,255,.6);}
.article-hero h1{
  color:#fff;font-size:36px;line-height:1.3;max-width:900px;margin-bottom:20px;
  letter-spacing:.005em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;font-size:14px;color:rgba(255,255,255,.75);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--accent-400);font-size:13px;}
.article-meta .cat-chip{
  background:var(--accent-400);color:var(--ink-900);
  padding:4px 12px;border-radius:var(--radius-pill);font-weight:700;font-size:13px;
}

/* ============================================================
   正文布局
   ============================================================ */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:44px 48px;
  box-shadow:var(--shadow-sm);
}
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:var(--ink-600);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-size:25px;margin:44px 0 16px;padding-left:16px;position:relative;line-height:1.35;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;
  border-radius:4px;background:var(--accent-400);
}
.article-body h3{font-size:19px;margin:32px 0 12px;color:var(--ink-700);}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink-700);}
.article-body p{margin:0 0 1.1em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:26px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:13px;width:7px;height:7px;border-radius:2px;
  background:var(--brand-500);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;padding-left:32px;}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:2px;
  width:20px;height:20px;border-radius:6px;background:var(--surface-alt);
  color:var(--brand-700);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;
  background:var(--surface-alt);border-left:4px solid var(--brand-500);
  border-radius:0 12px 12px 0;color:var(--ink-700);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:14px;margin:22px 0;width:100%;object-fit:cover;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:14px;color:var(--ink-400);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:var(--surface-alt);color:var(--ink-900);font-weight:700;}
.article-body code{
  background:var(--surface-alt);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--brand-700);
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:34px 0;}
.article-body a{border-bottom:1px solid rgba(18,73,60,.35);}
.article-body a:hover{border-bottom-color:var(--cta-500);color:var(--cta-500);}
.article-body strong{color:var(--ink-900);}

.empty-article{
  text-align:center;padding:60px 20px;background:var(--surface-alt);
  border-radius:var(--radius-card);
}
.empty-article i{font-size:40px;color:var(--ink-400);margin-bottom:16px;display:block;}
.empty-article h2{font-size:20px;margin-bottom:10px;}
.empty-article p{margin-bottom:20px;}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:104px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);
}
.side-card h3{
  font-size:16px;margin-bottom:16px;padding-bottom:12px;
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px;
}
.side-card h3 i{color:var(--cta-500);font-size:14px;}
.side-list li{border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:none;}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;font-size:14.5px;color:var(--ink-700);line-height:1.6;
}
.side-list a i{font-size:12px;color:var(--accent-400);margin-top:6px;flex:none;}
.side-list a:hover{color:var(--brand-700);}
.side-list a:hover i{color:var(--cta-500);}
.side-cta{
  background:linear-gradient(160deg,var(--brand-900),var(--brand-700));
  color:rgba(255,255,255,.82);border:none;
}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.16);}
.side-cta h3 i{color:var(--accent-400);}
.side-cta p{font-size:14.5px;line-height:1.8;margin-bottom:18px;}
.side-facts{display:flex;gap:12px;margin-top:18px;}
.side-facts div{
  flex:1;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:10px;padding:10px 12px;
}
.side-facts strong{display:block;font-size:18px;color:var(--accent-400);line-height:1.3;}
.side-facts span{font-size:12px;color:rgba(255,255,255,.65);}

/* ============================================================
   通用卡片
   ============================================================ */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CBD9D1;}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-alt);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{
  position:absolute;left:14px;top:14px;
  background:var(--accent-400);color:var(--ink-900);
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:var(--radius-pill);
}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;margin-bottom:10px;line-height:1.45;}
.card:hover .card-body h3{color:var(--brand-700);}
.card-body p{
  font-size:14.5px;color:var(--ink-600);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:10px;font-size:13px;color:var(--ink-400);
  padding-top:14px;border-top:1px solid var(--line);
}
.card-foot .arrow{color:var(--brand-700);font-size:13px;transition:transform .2s ease;}
.card:hover .card-foot .arrow{transform:translateX(4px);color:var(--cta-500);}

/* ============================================================
   问答
   ============================================================ */
.faq-wrap{max-width:880px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
.faq-wrap .accordion{margin:0;}

/* ============================================================
   CTA 区
   ============================================================ */
.cta-band{
  background:linear-gradient(150deg,var(--brand-900) 0%,var(--brand-700) 70%,var(--brand-500) 100%);
  border-radius:20px;color:#fff;padding:52px 48px;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(216,242,106,.28),transparent 70%);
}
.cta-band .cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;}
.cta-band h2{color:#fff;font-size:27px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:560px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.privacy-line{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;color:var(--ink-400);margin-top:22px;line-height:1.8;
}
.privacy-line i{color:var(--brand-500);margin-top:5px;}

/* ============================================================
   表单
   ============================================================ */
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:var(--radius-btn);background:var(--surface);color:var(--ink-900);
  outline:none;transition:border-color .2s ease,box-shadow .2s ease;line-height:1.5;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,107,88,.12);
}
.field textarea{resize:vertical;min-height:96px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.checkline{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-600);margin:6px 0 20px;}
.checkline input{margin-top:5px;flex:none;width:16px;height:16px;accent-color:var(--brand-500);}
.form-tip{font-size:13px;color:var(--ink-400);margin:14px 0 0;text-align:center;}
.reveal .close-button{color:var(--ink-400);top:14px;right:16px;font-size:22px;}
.reveal h3{font-size:21px;margin-bottom:8px;}
.reveal .reveal-sub{font-size:14.5px;color:var(--ink-400);margin-bottom:22px;}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.flogo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:16px;}
.flogo:hover{color:var(--accent-400);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.04em;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:var(--accent-400);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;margin-bottom:12px;line-height:1.75;}
.footer-contact i{color:var(--accent-400);margin-top:6px;font-size:13px;flex:none;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  :root{--gap:20px;}
  .section{padding:var(--sec-tablet) 0;}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .sidebar .side-card{flex:1 1 280px;}
  .article-main{padding:34px 30px;}
  .article-hero h1{font-size:29px;}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:900px){
  .brand-phone{display:none;}
}
@media (max-width:820px){
  .nav-toggle{display:inline-flex;}
  .channelbar{
    position:fixed;top:0;right:0;bottom:0;width:280px;max-width:84vw;
    background:var(--surface);z-index:90;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:var(--shadow-lg);border-top:none;overflow-y:auto;
  }
  body.nav-open .channelbar{transform:translateX(0);}
  .channelbar-inner{flex-direction:column;align-items:stretch;justify-content:flex-start;min-height:100%;padding:22px 0;}
  .channel{
    margin:0;padding:15px 4px;font-size:16px;
    border-bottom:1px solid var(--line);border-left:3px solid transparent;
    padding-left:12px;
  }
  .channel.is-active{border-bottom-color:var(--line);border-left-color:var(--accent-400);background:var(--surface-alt);}
  .channel-tail{margin:18px 0 0;}
  .channel-search{min-width:0;width:100%;}
  body.nav-open::after{
    content:"";position:fixed;inset:0;background:rgba(11,48,40,.5);z-index:80;
  }
}
@media (max-width:640px){
  :root{--gap:18px;}
  .section{padding:var(--sec-mobile) 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .article-hero .wrap{padding-top:34px;padding-bottom:38px;}
  .article-hero h1{font-size:24px;}
  .article-main{padding:24px 20px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:20px;margin-top:34px;}
  .article-body h3{font-size:17px;}
  .grid-cards{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:34px 22px;border-radius:16px;}
  .cta-band h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .form-grid{grid-template-columns:1fr;}
  .reveal{padding:24px 18px;border-radius:14px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{padding-top:52px;}
  .sidebar{flex-direction:column;}
  .logo-sub{display:none;}
  .logo{font-size:17px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3028;
  --brand-700:#12493C;
  --brand-500:#1E6B58;
  --accent-400:#D8F26A;
  --cta-500:#F2713C;
  --cta-600:#DD5F2C;
  --bg:#F6F8F5;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EC;
  --line:#DDE5E0;
  --ink-900:#101C19;
  --ink-700:#2C3B36;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --radius-card:14px;
  --radius-img:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,28,25,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,25,.18);
  --shadow-lg:0 26px 54px -28px rgba(11,48,40,.32);
  --sec:96px;
  --wrap:1200px;
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
@media (max-width:1024px){:root{--sec:72px}}
@media (max-width:640px){:root{--sec:56px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--bg);color:var(--ink-600);
  font-family:var(--font);font-size:17px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3;letter-spacing:0}
h1{font-size:36px}
h2{font-size:28px}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid rgba(242,113,60,.35);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
@media (max-width:640px){.wrap{padding:0 18px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:76px;transition:height .2s ease}
.site-header.is-scrolled .brandbar-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink-900);font-weight:700;font-size:19px;letter-spacing:.01em}
.logo:hover{color:var(--brand-700)}
.logo-mark{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,var(--brand-700),var(--brand-500));color:var(--accent-400);flex:0 0 auto}
.logo-sub{font-size:12px;font-weight:500;color:var(--ink-400);border-left:1px solid var(--line);padding-left:10px;letter-spacing:.06em}
.brand-actions{display:flex;align-items:center;gap:10px}
.brand-phone{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-600);background:var(--surface-alt);border-radius:var(--radius-pill);padding:7px 14px}
.brand-phone i{color:var(--brand-500)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius-btn);color:var(--ink-900);font-size:18px}
.channelbar{border-top:1px solid var(--line);background:var(--surface)}
.channelbar-inner{display:flex;align-items:center;gap:6px;overflow-x:auto;padding:8px 0;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{flex:0 0 auto;padding:9px 16px;border-radius:var(--radius-pill);font-size:15px;color:var(--ink-600);border-bottom:2px solid transparent;white-space:nowrap}
.channel:hover{background:var(--surface-alt);color:var(--brand-700)}
.channel.is-active{background:var(--surface-alt);color:var(--brand-700);font-weight:600;border-bottom-color:var(--accent-400)}
.channel-tail{margin-left:auto;display:flex;align-items:center;gap:10px;padding-left:12px}
.channel-search{display:flex;align-items:center;gap:8px;background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-pill);padding:7px 14px;color:var(--ink-400)}
.channel-search input{border:0;background:transparent;outline:none;width:150px;color:var(--ink-700);font-size:14px}
.channel-search input::placeholder{color:var(--ink-400)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;cursor:pointer}
.btn-sm{min-height:38px;padding:8px 16px;font-size:14px}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 10px 22px -14px rgba(242,113,60,.9)}
.btn-primary:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-700);color:#fff}
.btn-light{background:var(--surface);color:var(--brand-700);border-color:var(--line)}
.btn-light:hover{background:var(--surface-alt);color:var(--brand-700)}
.btn-block{width:100%}
.tlink{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.tlink:hover{color:var(--brand-500)}

/* ---------- pill / badge ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;letter-spacing:.08em;padding:6px 14px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--surface);color:var(--brand-700);font-weight:600}
.badge{display:inline-flex;align-items:center;font-size:13px;padding:4px 12px;border-radius:var(--radius-pill);background:var(--accent-400);color:var(--ink-900);font-weight:600;letter-spacing:.02em}

/* ---------- hero ---------- */
.page-hero{background:var(--surface);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(11,48,40,.09) 1px,transparent 1px);background-size:22px 22px;opacity:.5;pointer-events:none}
.page-hero .wrap{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);padding:20px 0 0}
.crumbs a{color:var(--ink-600)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs span.sep{color:var(--line)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:36px 0 60px}
.hero-copy h1{margin:16px 0 14px;max-width:18em}
.hero-lead{font-size:17px;color:var(--ink-600);max-width:30em;margin-bottom:24px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-lg)}
.hero-figure .fig-tag{position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.94);border-radius:var(--radius-pill);padding:7px 14px;font-size:13px;font-weight:600;color:var(--brand-700);box-shadow:var(--shadow-sm)}
.hero-strip{display:flex;flex-wrap:wrap;gap:28px;padding:0 0 26px;border-top:1px solid var(--line);margin-top:0;padding-top:22px}
.hero-strip .item{display:flex;align-items:baseline;gap:8px}
.hero-strip .num{font-size:24px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums}
.hero-strip .lbl{font-size:13px;color:var(--ink-400)}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0}
.section.alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin:14px 0 12px}
.section-head p{color:var(--ink-600)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- category layout ---------- */
.cat-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:40px;align-items:start}
.side-nav{position:sticky;top:150px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-sm)}
.side-nav h3{font-size:14px;letter-spacing:.08em;color:var(--ink-400);font-weight:600;margin-bottom:12px}
.side-nav ul li a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:11px 12px;border-radius:10px;font-size:15px;color:var(--ink-600);border-left:2px solid transparent}
.side-nav ul li a:hover{background:var(--surface-alt);color:var(--brand-700)}
.side-nav ul li a.is-active{background:var(--surface-alt);color:var(--brand-700);font-weight:600;border-left-color:var(--accent-400)}
.side-nav .side-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-400);line-height:1.7}
.card-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.info-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFDAD4}
.info-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--surface-alt)}
.info-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.info-card:hover .thumb img{transform:scale(1.03)}
.info-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.info-card h3{font-size:19px}
.info-card p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}
.info-card .meta{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(--ink-400)}

/* ---------- scenario ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.scene{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.scene .no{font-size:13px;letter-spacing:.08em;color:var(--brand-500);font-weight:700}
.scene h3{margin:10px 0 8px}
.scene p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:step}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:step;content:"0" counter(step);display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:32px;padding:0 12px;border-radius:var(--radius-pill);background:var(--brand-900);color:var(--accent-400);font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.06em}
.step h3{margin:16px 0 8px;font-size:18px}
.step p{font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}
.steps-line{height:2px;background:linear-gradient(90deg,var(--brand-500),var(--accent-400));border-radius:2px;margin:0 0 26px;opacity:.5}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat{background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 22px}
.stat .num{font-size:40px;font-weight:700;color:var(--brand-700);line-height:1.1;font-variant-numeric:tabular-nums}
.stat .num em{font-style:normal;font-size:15px;font-weight:600;margin-left:6px;padding:3px 10px;border:1px solid var(--brand-500);border-radius:var(--radius-pill);color:var(--brand-700)}
.stat .lbl{font-size:13px;color:var(--ink-400);margin-top:10px;letter-spacing:.04em}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;background:transparent;border:0;padding:22px 4px;text-align:left;color:var(--ink-900);font-size:17px;font-weight:600;line-height:1.5}
.faq-q:hover{color:var(--brand-700)}
.faq-num{font-size:13px;color:var(--brand-500);font-variant-numeric:tabular-nums;letter-spacing:.06em;flex:0 0 auto}
.faq-text{flex:1}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{padding:0 4px 24px 44px;color:var(--ink-600);font-size:16px;line-height:1.9}
.faq-a p{margin:0}

/* ---------- cta ---------- */
.cta-band{background:var(--brand-900);color:rgba(255,255,255,.82);border-radius:22px;padding:52px 48px;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(216,242,106,.22),transparent 70%)}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);margin:0}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}
.privacy-row{margin-top:20px;font-size:13px;color:var(--ink-400);display:flex;gap:10px;align-items:flex-start}
.privacy-row i{color:var(--brand-500);margin-top:4px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:var(--sec)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;padding:64px 0 44px}
.flogo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.flogo:hover{color:var(--accent-400)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin:0}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.04em}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:var(--accent-400)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--accent-400);margin-top:5px}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:120;display:none}
.modal.is-open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(11,48,40,.55)}
.modal-box{position:relative;max-width:560px;margin:6vh auto;background:var(--surface);border-radius:16px;padding:30px;box-shadow:var(--shadow-lg);max-height:88vh;overflow:auto;z-index:1}
.modal-close{position:absolute;right:14px;top:14px;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:20px;color:var(--ink-600);line-height:1}
.modal-close:hover{background:var(--surface-alt)}
.modal-box h3{font-size:22px;margin-bottom:8px}
.modal-sub{font-size:14px;color:var(--ink-400);margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--ink-700);font-weight:600}
.field input,.field select,.field textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:11px 13px;background:var(--surface);color:var(--ink-900);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,107,88,.12)}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.err{font-size:14px;color:var(--cta-500);display:none}
.field.has-err .err{display:block}
.field.has-err input,.field.has-err select,.field.has-err textarea{border-color:var(--cta-500)}
.check-row{grid-column:1 / -1;display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-400);line-height:1.6}
.check-row input{width:18px;height:18px;margin-top:3px;flex:0 0 auto;accent-color:var(--brand-700)}
.form-foot{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.ok-msg{grid-column:1 / -1;display:none;background:var(--surface-alt);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14px;color:var(--brand-700)}
.ok-msg.show{display:block}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--surface);z-index:130;transform:translateX(102%);transition:transform .25s ease;box-shadow:var(--shadow-lg);padding:24px;overflow:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(11,48,40,.5);z-index:125;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer h4{font-size:14px;letter-spacing:.08em;color:var(--ink-400);margin-bottom:12px}
.drawer nav a{display:block;padding:13px 14px;border-radius:10px;color:var(--ink-700);font-size:16px;margin-bottom:6px}
.drawer nav a:hover{background:var(--surface-alt)}
.drawer nav a.is-active{background:var(--surface-alt);color:var(--brand-700);font-weight:600}
.drawer-close{position:absolute;right:16px;top:16px;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:18px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  h1{font-size:28px}
  h2{font-size:22px}
  .hero-grid{grid-template-columns:1fr;gap:28px;padding-bottom:44px}
  .cat-layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:40px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;padding:48px 0 32px}
}
@media (max-width:860px){
  .brand-phone{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .channelbar{display:none}
  .card-grid-2,.scene-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .logo-sub{display:none}
  .brand-actions .btn-ghost{display:none}
  .hero-figure img{aspect-ratio:16/10}
  .steps,.stats{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .brandbar-inner{height:66px}
  .site-header.is-scrolled .brandbar-inner{height:60px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3028;
  --brand-700:#12493C;
  --brand-500:#1E6B58;
  --accent-400:#D8F26A;
  --cta-500:#F2713C;
  --cta-600:#DD5F2C;
  --bg:#F6F8F5;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EC;
  --line:#DDE5E0;
  --ink-900:#101C19;
  --ink-700:#2C3B36;
  --ink-600:#4A5A55;
  --ink-400:#7C8A85;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(16,28,25,.06);
  --shadow-md:0 8px 24px -12px rgba(16,28,25,.18);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--ink-600);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.no-scroll{overflow:hidden}
:focus-visible{outline:3px solid rgba(242,113,60,.35);outline-offset:2px;border-radius:6px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(16,28,25,.02)}
.brandbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px;padding:10px 0}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.logo:hover{color:var(--brand-700)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand-700);color:var(--accent-400);flex:0 0 auto}
.logo-sub{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-500);background:var(--surface-alt);border-radius:var(--radius-pill);padding:3px 10px}
.brand-actions{display:flex;align-items:center;gap:12px}
.brand-phone{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--ink-600);white-space:nowrap}
.brand-phone i{color:var(--brand-500)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:10px;color:var(--ink-900)}
.channelbar{background:var(--surface-alt);border-top:1px solid var(--line)}
.channelbar-inner{display:flex;align-items:center;gap:6px;min-height:54px;overflow-x:auto;scrollbar-width:none}
.channelbar-inner::-webkit-scrollbar{display:none}
.channel{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--radius-pill);font-size:15px;font-weight:600;color:var(--ink-700);white-space:nowrap;transition:background .2s ease,color .2s ease}
.channel:hover{background:#fff;color:var(--brand-700)}
.channel.is-active{background:var(--surface);color:var(--brand-700);box-shadow:var(--shadow-sm)}
.channel.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;border-radius:2px;background:var(--accent-400)}
.channel-tail{margin-left:auto;padding-left:12px;flex:0 0 auto}
.channel-search{display:flex;align-items:center;gap:8px;background:#fff;border:1.5px solid var(--line);border-radius:var(--radius-pill);padding:6px 14px;min-width:200px}
.channel-search i{color:var(--ink-400);font-size:13px}
.channel-search input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--ink-900);line-height:1.6;padding:0}
.channel-search input::placeholder{color:var(--ink-400)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;border:1.5px solid transparent;transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease;text-align:center}
.btn-primary{background:var(--cta-500);color:#fff;box-shadow:0 6px 16px -10px rgba(242,113,60,.9)}
.btn-primary:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:var(--brand-700);color:#fff}
.btn-light{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn-light:hover{background:#fff;color:var(--brand-900);border-color:#fff}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* Hero */
.page-hero{position:relative;color:#fff;overflow:hidden;background:var(--brand-900)}
.hero-media{position:absolute;inset:0;background-image:linear-gradient(105deg,rgba(11,48,40,.95) 0%,rgba(11,48,40,.82) 46%,rgba(11,48,40,.58) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.hero-media::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(216,242,106,.16) 1px,transparent 1px);background-size:26px 26px;opacity:.35}
.hero-inner{position:relative;z-index:2;padding:52px 24px 76px}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:26px;flex-wrap:wrap}
.crumb a{color:rgba(255,255,255,.68)}
.crumb a:hover{color:var(--accent-400)}
.crumb em{font-style:normal;color:rgba(255,255,255,.5)}
.crumb span{color:rgba(255,255,255,.35)}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;font-weight:600;padding:6px 14px;border-radius:var(--radius-pill);border:1px solid rgba(216,242,106,.5);color:var(--accent-400);background:rgba(216,242,106,.08)}
.page-hero h1{margin:20px 0 18px;font-size:38px;line-height:1.25;color:#fff;max-width:820px}
.page-hero .lede{max-width:640px;font-size:17px;color:rgba(255,255,255,.82);margin-bottom:30px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-micro{display:flex;flex-wrap:wrap;gap:18px;margin-top:36px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.hero-micro div{display:flex;align-items:baseline;gap:9px;font-size:13px;color:rgba(255,255,255,.66)}
.hero-micro strong{font-size:22px;font-weight:700;color:var(--accent-400);font-variant-numeric:tabular-nums;line-height:1}

/* 板块 */
.section{padding:96px 0}
.section-alt{background:var(--surface-alt)}
.sec-head{max-width:760px;margin-bottom:44px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-500);margin-bottom:10px;text-transform:none}
.section h2{font-size:28px;margin-bottom:14px}
.sec-sub{font-size:16px;color:var(--ink-600)}

/* 卡片 */
.card-grid{margin-top:0}
.icard{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.icard:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFDDD6}
.icard-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-alt)}
.icard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.icard:hover .icard-media img{transform:scale(1.03)}
.icard-body{padding:24px 22px 26px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-flex;align-items:center;align-self:flex-start;font-size:13px;font-weight:700;letter-spacing:.04em;padding:4px 12px;border-radius:var(--radius-pill);background:var(--accent-400);color:var(--ink-900);margin-bottom:14px}
.icard h3{font-size:20px;margin-bottom:10px}
.icard p{font-size:15px;line-height:1.85;color:var(--ink-600);margin-bottom:18px}
.tlink{display:inline-flex;align-items:center;gap:7px;margin-top:auto;font-size:15px;font-weight:700;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.tlink:hover{color:var(--brand-500)}
.tlink i{font-size:12px;transition:transform .2s ease}
.tlink:hover i{transform:translateX(3px)}

/* 步骤条 */
.steps{display:flex;gap:0;margin-top:8px;counter-reset:step}
.steps li{position:relative;flex:1 1 0;padding:0 22px;border-left:1px solid var(--line)}
.steps li:first-child{border-left:0;padding-left:0}
.steps li:last-child{padding-right:0}
.step-no{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:30px;padding:0 10px;border-radius:var(--radius-pill);background:var(--brand-700);color:var(--accent-400);font-size:13px;font-weight:700;letter-spacing:.06em;font-variant-numeric:tabular-nums;margin-bottom:16px}
.steps h3{font-size:18px;margin-bottom:8px}
.steps p{font-size:15px;line-height:1.85;margin:0}
.steps-rail{position:relative;height:2px;background:linear-gradient(90deg,var(--accent-400),rgba(216,242,106,.2));border-radius:2px;margin:34px 0 40px}

/* 图文与清单 */
.feature-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.feature-copy h2{margin-bottom:16px}
.checklist{margin-top:8px}
.checklist li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:16px;color:var(--ink-700)}
.checklist li:last-child{border-bottom:0}
.checklist i{color:var(--brand-500);margin-top:6px;font-size:14px}

/* 数据块 */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-sm)}
.stat strong{display:block;font-size:40px;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stat strong em{font-style:normal;font-size:15px;font-weight:700;color:var(--brand-500);margin-left:6px;padding:2px 9px;border:1px solid var(--line);border-radius:var(--radius-pill);vertical-align:6px}
.stat span{display:block;margin-top:10px;font-size:13px;color:var(--ink-400)}

/* 问答 */
.qa-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;margin-top:6px}
.qa{border-bottom:1px solid var(--line);background:transparent}
.qa:first-child{border-top:1px solid var(--line)}
.qa summary{display:flex;align-items:flex-start;gap:14px;padding:20px 4px;cursor:pointer;list-style:none;font-size:17px;font-weight:700;color:var(--ink-900);transition:color .2s ease}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--brand-700)}
.qa summary .q-no{font-size:13px;font-weight:700;color:var(--brand-500);font-variant-numeric:tabular-nums;margin-top:5px;flex:0 0 auto}
.qa summary .q-icon{margin-left:auto;flex:0 0 auto;color:var(--brand-500);font-size:14px;margin-top:6px;transition:transform .2s ease}
.qa[open] summary .q-icon{transform:rotate(45deg)}
.qa .a-body{padding:0 4px 22px 32px;font-size:15.5px;line-height:1.9;color:var(--ink-600)}

/* CTA */
.cta-band{background:var(--brand-900);color:#fff;border-radius:18px;padding:56px 48px;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(216,242,106,.18),transparent 65%)}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.78);max-width:620px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.privacy-note{display:flex;align-items:flex-start;gap:10px;margin-top:26px;font-size:13px;color:rgba(255,255,255,.66);line-height:1.7;position:relative;z-index:2}
.privacy-note i{color:var(--accent-400);margin-top:4px}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px}
.flogo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.flogo:hover{color:var(--accent-400)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--accent-400)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:rgba(255,255,255,.72)}
.footer-contact i{color:var(--accent-400);margin-top:5px;font-size:13px}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 28px;font-size:13px;color:rgba(255,255,255,.55)}

/* 弹层与表单 */
.modal-mask{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:24px;background:rgba(11,48,40,.55)}
.modal-mask.is-open{display:flex}
.modal-panel{width:100%;max-width:560px;max-height:90vh;overflow-y:auto;background:var(--surface);border-radius:16px;padding:32px;box-shadow:0 30px 60px -30px rgba(11,48,40,.6);position:relative}
.modal-panel h3{font-size:22px;margin-bottom:8px}
.modal-panel .modal-sub{font-size:14px;color:var(--ink-400);margin-bottom:24px}
.modal-close{position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink-700);display:inline-flex;align-items:center;justify-content:center}
.modal-close:hover{background:var(--surface-alt)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--ink-700)}
input[type="text"],input[type="tel"],input[type="email"],select,textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-900);line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease;height:auto;margin:0;box-shadow:none;
}
textarea{resize:vertical;min-height:108px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,107,88,.12)}
.consent{display:flex;align-items:flex-start;gap:10px;margin:20px 0 8px;font-size:13px;color:var(--ink-400);line-height:1.7}
.consent input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-700);flex:0 0 auto}
.form-note{font-size:13px;color:var(--ink-400);margin-top:14px;line-height:1.7}
.form-msg{display:none;margin-top:14px;font-size:14px;color:var(--brand-700);background:var(--surface-alt);border-radius:10px;padding:12px 14px}
.form-msg.is-show{display:block}

/* 响应式 */
@media screen and (max-width:1024px){
  body{font-size:16px}
  .section{padding:72px 0}
  .page-hero h1{font-size:30px}
  .section h2,.cta-band h2{font-size:24px}
  .channel-search{min-width:150px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:44px 32px}
}
@media screen and (max-width:900px){
  .brand-phone{display:none}
  .channelbar-inner{overflow-x:auto;padding-bottom:4px}
}
@media screen and (max-width:768px){
  .nav-toggle{display:none}
  .qa-cols{grid-template-columns:1fr}
  .qa:first-child{border-top:0}
  .steps{flex-direction:column;gap:26px}
  .steps li{border-left:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
  .steps li:last-child{padding-right:0}
  .steps-rail{display:none}
  .hero-inner{padding:38px 24px 58px}
  .page-hero h1{font-size:26px}
  .section{padding:56px 0}
  .brand-actions .btn-ghost{display:none}
}
@media screen and (max-width:640px){
  .wrap{padding:0 18px}
  .hero-inner{padding:32px 18px 48px}
  .page-hero h1{font-size:23px}
  .page-hero .lede{font-size:15.5px}
  .btn{width:100%}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .brand-actions .btn-sm{min-height:40px;padding:0 14px}
  .stats{grid-template-columns:1fr 1fr;gap:14px}
  .stat{padding:20px 16px}
  .stat strong{font-size:30px}
  .form-grid{grid-template-columns:1fr}
  .modal-panel{padding:24px 20px;max-height:94vh}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .cta-band{padding:34px 22px;border-radius:14px}
  .channel-search{min-width:130px}
}
@media screen and (max-width:400px){
  .logo{font-size:16px}
  .logo-sub{display:none}
}