/* roulang page: index */
:root{
  --brand-900:#082A22;--brand-700:#0F5C4A;--brand-500:#178B6E;--brand-100:#E6F2EC;
  --lime-400:#C8F169;--accent-500:#FF7A2F;--accent-600:#E8641B;
  --ink-900:#101A16;--ink-700:#33443D;--ink-500:#66756E;
  --bg:#F7F6F2;--surface:#FFFFFF;--surface-alt:#EEF3EF;--border:#DDE4DF;
  --ok:#1F9D6B;--warn:#D97706;--err:#DC2626;
  --r-card:16px;--r-lg:22px;--r-btn:10px;--r-input:12px;
  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);
  --bs-primary:#0F5C4A;--bs-body-bg:#F7F6F2;--bs-body-color:#101A16;
  --bs-border-color:#DDE4DF;--bs-link-color:#0F5C4A;--bs-link-hover-color:#178B6E;
  --bs-border-radius:16px;--bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.9;letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:.005em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand-700);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:2000}
.skip:focus{left:0}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:1399px){.wrap{max-width:1140px}}
section{position:relative}
.sec{padding:88px 0}
.sec-alt{background:var(--surface-alt)}
.sec-head{max-width:780px;margin-bottom:40px}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.32;margin-bottom:.6em}
.sec-head .lead{color:var(--ink-500);font-size:16.5px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:16px}
.eyebrow i{color:var(--accent-500)}
.rule{width:52px;height:4px;border-radius:99px;background:var(--lime-400);margin:14px 0 0}

/* 顶部信任条 */
.topbar{background:var(--brand-900);color:#D7EDE3;font-size:13.5px;line-height:34px;height:34px;overflow:hidden}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar .ticker{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .ticker i{color:var(--lime-400);margin-right:8px}
.topbar .contact{white-space:nowrap;color:#9FC7B8}
.topbar .contact i{margin-right:6px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);transition:box-shadow .2s ease-out}
.site-header.is-stuck{box-shadow:var(--sh-md)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease-out}
.site-header.is-stuck .nav-wrap{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-700);flex:0 0 auto}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--brand-700),var(--brand-500));display:grid;place-items:center;color:var(--lime-400);font-size:15px;box-shadow:var(--sh-sm)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;list-style:none;padding:0;margin:0}
.main-nav a{display:block;padding:8px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--ink-700)}
.main-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.cmd-search{position:relative;width:240px}
.cmd-search i.fa-magnifying-glass{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--ink-500);font-size:13px}
.cmd-search input{width:100%;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);background:var(--surface-alt);padding:0 54px 0 34px;font-size:14px;color:var(--ink-900);transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out}
.cmd-search input::placeholder{color:#8C9A93}
.cmd-search input:focus{outline:none;background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12)}
.cmd-search kbd{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:11px;color:var(--ink-500);background:#fff;border:1px solid var(--border);border-radius:6px;padding:2px 6px;font-family:inherit}
.cmd-panel{position:absolute;top:46px;left:0;right:0;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--sh-lg);padding:10px;display:none}
.cmd-search:focus-within .cmd-panel{display:block}
.cmd-panel .row-item{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;border-radius:10px;font-size:13.5px;color:var(--ink-700)}
.cmd-panel .row-item:hover{background:var(--brand-100)}
.cmd-panel .row-item span:last-child{color:var(--ink-500)}
.icon-btn{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--ink-700);display:grid;place-items:center;transition:all .18s ease-out}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.hamburger{display:none;width:42px;height:40px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--brand-700);font-size:16px;place-items:center}
.mobile-drawer{display:none;border-top:1px solid var(--border);background:#fff;padding:16px 24px 22px}
.mobile-drawer.open{display:block}
.mobile-drawer .cmd-search{width:100%;margin-bottom:14px}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.mobile-drawer ul a{display:block;padding:11px 14px;border-radius:var(--r-btn);font-size:15px;font-weight:500;color:var(--ink-700)}
.mobile-drawer ul a:hover,.mobile-drawer ul a.active{background:var(--brand-100);color:var(--brand-700)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-btn);padding:0 22px;height:46px;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;white-space:nowrap}
.btn-cta{background:var(--accent-500);color:#fff;box-shadow:var(--sh-cta)}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -8px rgba(255,122,47,.55)}
.btn-cta:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0;height:auto;border:0;border-bottom:1.5px solid transparent}
.btn-ghost:hover{border-bottom-color:var(--brand-500);color:var(--brand-500)}
.btn-sm{height:40px;font-size:14px;padding:0 18px}
.btn-block{width:100%}

/* Hero */
.hero{padding:76px 0 84px;overflow:hidden;background:
  radial-gradient(760px 420px at 88% 8%,rgba(200,241,105,.28),transparent 62%),
  radial-gradient(620px 360px at 6% 96%,rgba(23,139,110,.10),transparent 66%),var(--bg);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(30px,4.2vw,48px);line-height:1.28;font-weight:700;margin-bottom:.5em}
.hero h1 em{font-style:normal;color:var(--brand-700);box-shadow:inset 0 -12px 0 rgba(200,241,105,.6)}
.hero .sub{font-size:17px;color:var(--ink-700);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-points{display:flex;gap:26px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:20px}
.hero-points div{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink-700);font-weight:500}
.hero-points i{color:var(--brand-500);font-size:15px}
.hero-visual{position:relative}
.hero-visual .big{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);aspect-ratio:4/3;background:var(--surface-alt)}
.hero-visual .big img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:var(--r-lg)}
.hero-card{position:absolute;left:-26px;bottom:-26px;width:230px;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-lg);padding:16px;display:flex;gap:12px;align-items:center}
.hero-card img{width:56px;height:56px;object-fit:cover;aspect-ratio:1/1;border-radius:12px}
.hero-card b{display:block;font-size:14.5px;color:var(--ink-900);line-height:1.5}
.hero-card span{font-size:12.5px;color:var(--ink-500)}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pain-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-sm);position:relative;overflow:hidden;transition:transform .18s ease-out,box-shadow .18s ease-out}
.pain-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--border);transition:background .18s ease-out}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.pain-card:hover::before{background:var(--lime-400)}
.pain-card .num{font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.08em}
.pain-card h3{font-size:18px;margin:8px 0 8px;line-height:1.5}
.pain-card p{font-size:14.5px;color:var(--ink-500);margin:0}

/* Bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento-big{grid-column:span 4;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-md);display:flex;flex-direction:column}
.bento-big img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0}
.bento-big .body{padding:26px}
.bento-big h3{font-size:20px;margin-bottom:10px}
.bento-big ul{margin-top:14px;display:flex;flex-direction:column;gap:9px}
.bento-big li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700)}
.bento-big li i{color:var(--brand-500);margin-top:5px;font-size:13px}
.bento-side{grid-column:span 2;display:flex;flex-direction:column;gap:20px}
.bento-mini{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-sm);flex:1;transition:transform .18s ease-out,box-shadow .18s ease-out}
.bento-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.bento-mini .ico{width:44px;height:44px;border-radius:12px;background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-size:18px;margin-bottom:14px}
.bento-mini h3{font-size:17px;margin-bottom:8px}
.bento-mini p{font-size:14px;color:var(--ink-500);margin:0}
.bento-row{grid-column:span 6;display:flex;gap:24px;align-items:center;background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--r-card);padding:22px 26px}
.bento-row img{width:150px;height:104px;object-fit:cover;aspect-ratio:3/2;border-radius:14px;flex:0 0 auto}
.bento-row h3{font-size:17px;margin-bottom:6px}
.bento-row p{font-size:14px;color:var(--ink-500);margin:0}

/* 数据 */
.stats{background:var(--brand-900);color:#fff;padding:80px 0}
.stats .sec-head h2{color:#fff}
.stats .sec-head .lead{color:#A8C9BC}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat b{display:block;font-size:40px;font-weight:700;color:var(--lime-400);line-height:1.15;font-variant-numeric:tabular-nums}
.stat span{display:block;font-size:14px;color:#C6DED4;margin-top:6px}
.trend{margin-top:44px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:22px 26px}
.trend .head{display:flex;justify-content:space-between;font-size:14px;color:#C6DED4;margin-bottom:14px}
.trend-bar{height:10px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.trend-bar i{display:block;height:100%;width:78%;border-radius:99px;background:linear-gradient(90deg,var(--brand-500),var(--lime-400))}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{content:"";position:absolute;left:26px;right:26px;top:19px;height:2px;background:linear-gradient(90deg,var(--lime-400),rgba(200,241,105,.25))}
.step{position:relative;padding-top:0}
.step .dot{width:38px;height:38px;border-radius:50%;background:var(--brand-700);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;box-shadow:0 0 0 6px rgba(200,241,105,.35);position:relative;z-index:1}
.step h3{font-size:17px;margin:18px 0 8px}
.step p{font-size:14.5px;color:var(--ink-500);margin:0}

/* 内容列表 */
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.sec-head-row h2{font-size:clamp(24px,3vw,34px);line-height:1.32}
.news-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-md);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease-out,box-shadow .18s ease-out}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.news-card__cover{display:block;overflow:hidden}
.news-card__cover img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0;transition:transform .22s ease-out}
.news-card:hover .news-card__cover img{transform:scale(1.03)}
.news-card__body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.badge-soft{display:inline-block;align-self:flex-start;font-size:12.5px;font-weight:600;color:var(--brand-700);background:rgba(200,241,105,.45);border-radius:999px;padding:4px 12px;margin-bottom:12px}
.news-card h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card h3 a{color:var(--ink-900)}
.news-card h3 a:hover{color:var(--brand-700)}
.news-card__sum{font-size:14px;color:var(--ink-500);line-height:1.75;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);border-top:1px solid var(--border);padding-top:14px}
.news-card__meta .arrow{margin-left:auto;color:var(--brand-500)}
.empty-state{display:none;min-height:220px;border:1px dashed var(--border);background:var(--brand-100);border-radius:var(--r-card);align-items:center;justify-content:center;flex-direction:column;gap:12px;text-align:center;padding:32px}
.empty-state i{font-size:30px;color:var(--brand-500)}
.empty-state p{color:var(--ink-500);font-size:15px;margin:0}

/* FAQ */
.faq{max-width:900px}
.faq-item{border-top:1px solid var(--border)}
.faq-item:last-child{border-bottom:1px solid var(--border)}
.faq-q{width:100%;background:none;border:0;text-align:left;display:flex;align-items:center;gap:16px;padding:22px 0 22px 16px;font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;position:relative}
.faq-q::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;border-radius:99px;background:var(--border);transition:background .2s ease-out}
.faq-item.open .faq-q::before{background:var(--lime-400)}
.faq-icon{margin-left:auto;width:28px;height:28px;flex:0 0 auto;border-radius:50%;border:1px solid var(--border);display:grid;place-items:center;color:var(--brand-700);font-size:12px;transition:transform .2s ease-out,background .2s ease-out}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-100)}
.faq-a{display:none;padding:0 0 24px 16px;max-width:760px}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-700);margin:0}
.faq-item.open .faq-a{display:block;animation:fade .2s ease-out}
@keyframes fade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* 表单 */
.lead-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-md)}
.form-card h2{font-size:22px;margin-bottom:8px}
.form-card .hint{font-size:14px;color:var(--ink-500);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:7px}
.field .ctrl{width:100%;height:48px;border-radius:var(--r-input);border:1px solid var(--border);background:#fff;padding:0 14px;font-size:15px;color:var(--ink-900);font-family:inherit;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.field textarea.ctrl{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field .ctrl:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12)}
.field select.ctrl{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-500) 50%),linear-gradient(135deg,var(--ink-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-500);line-height:1.7;margin:6px 0 20px}
.checkline input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand-700)}
.info-card{background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--r-card);padding:28px}
.info-card h3{font-size:17px;margin-bottom:16px}
.info-card ul{display:flex;flex-direction:column;gap:14px;margin-bottom:22px}
.info-card li{display:flex;gap:11px;font-size:14.5px;color:var(--ink-700)}
.info-card li i{color:var(--brand-500);margin-top:6px;font-size:13px}
.info-card .phone{border-top:1px solid var(--border);padding-top:18px;font-size:14px;color:var(--ink-500)}
.info-card .phone b{display:block;font-size:20px;color:var(--brand-700);letter-spacing:.02em}

/* 模态框 */
.modal-content{border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-lg)}
.modal-header{border-bottom:1px solid var(--border);padding:20px 26px}
.modal-title{font-size:18px;font-weight:700}
.modal-body{padding:24px 26px 28px}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#C6DED4;padding:72px 0 0;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700}
.site-footer .fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:14px}
.site-footer .fbrand .brand-mark{background:linear-gradient(140deg,var(--brand-500),var(--brand-700))}
.site-footer p{color:#9FC7B8;font-size:13.5px;line-height:1.8;margin-bottom:16px}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul a{color:#C6DED4;font-size:14px}
.site-footer ul a:hover{color:var(--lime-400)}
.foot-phone{color:#fff;font-weight:600;font-size:15px}
.qr{width:120px;height:120px;border-radius:12px;background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.28);display:grid;place-items:center;color:#8FB9A9;font-size:12.5px;text-align:center;line-height:1.6}
.foot-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FB9A9}

/* 响应式 */
@media (max-width:1199px){
  .main-nav a{padding:8px 11px;font-size:14.5px}
  .cmd-search{width:190px}
}
@media (max-width:991px){
  .sec{padding:64px 0}
  .main-nav,.cmd-search,.icon-btn{display:none}
  .hamburger{display:grid}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .hero-card{left:14px;bottom:-20px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-big,.bento-side,.bento-row{grid-column:span 2}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .steps{grid-template-columns:repeat(2,1fr);gap:30px}
  .steps::before{display:none}
  .news-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lead-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .sec{padding:48px 0}
  .wrap{padding:0 16px}
  .pain-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento-big,.bento-side,.bento-row{grid-column:span 1}
  .bento-row{flex-direction:column;align-items:flex-start}
  .bento-row img{width:100%;height:auto;aspect-ratio:16/9}
  .stats-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .sec-head-row{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .hero .sub{font-size:16px}
  .hero-card{position:static;width:100%;margin-top:14px}
  .modal-dialog{margin:0;max-width:100%}
  .modal-content{border-radius:16px}
}
@media (max-width:575px){
  .hero-actions .btn{width:100%}
  .topbar .contact{display:none}
  .stat b{font-size:32px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .news-card:hover,.pain-card:hover,.bento-mini:hover,.btn-cta:hover,.btn-outline:hover{transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#082A22;
  --brand-700:#0F5C4A;
  --brand-500:#178B6E;
  --brand-100:#E6F2EC;
  --lime-400:#C8F169;
  --accent-500:#FF7A2F;
  --accent-600:#E8641B;
  --ink-900:#101A16;
  --ink-700:#33443D;
  --ink-500:#66756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EF;
  --border:#DDE4DF;
  --ok:#1F9D6B;
  --warn:#D97706;
  --err:#DC2626;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:10px;
  --r-input:12px;
  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);
  --bs-primary:#0F5C4A;
  --bs-body-bg:#F7F6F2;
  --bs-body-color:#101A16;
  --bs-border-color:#DDE4DF;
  --bs-link-color:#0F5C4A;
  --bs-link-hover-color:#178B6E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-border-radius:16px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部信任条 ---------- */
.trust-bar{background:var(--brand-900);color:#CFEDE2;font-size:13px;height:34px;display:flex;align-items:center}
.trust-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px}
.trust-bar .tick{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap}
.trust-bar .tick i{color:var(--lime-400)}
.trust-bar .tb-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.trust-bar .tb-right a{color:#CFEDE2}
.trust-bar .tb-right a:hover{color:var(--lime-400)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out,height .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-md)}
.head-inner{display:flex;align-items:center;gap:20px;height:64px}
.site-header.scrolled .head-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:var(--sh-sm);
}
.brand-text{font-weight:700;font-size:17px;color:var(--brand-700);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--ink-700);
  padding:7px 14px;border-radius:999px;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.main-nav a:hover{background:var(--surface-alt);color:var(--brand-700)}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.head-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.command-search{position:relative;width:240px}
.command-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--ink-500)}
.command-search input{
  width:100%;height:38px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:var(--surface-alt);padding:0 46px 0 34px;font-size:14px;color:var(--ink-900);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.command-search input::placeholder{color:var(--ink-500)}
.command-search input:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 8px rgba(23,139,110,.12);
}
.command-search kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--ink-500);background:#fff;border:1px solid var(--border);
  border-radius:6px;padding:1px 6px;font-family:inherit;
}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#fff;color:var(--ink-700);display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.btn-cta{
  height:40px;padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-weight:600;font-size:15px;
  display:inline-flex;align-items:center;gap:8px;
  box-shadow:var(--sh-cta);transition:all .18s ease-out;
}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-outline-brand{
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  border:1.5px solid var(--brand-700);background:#fff;color:var(--brand-700);
  font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;
  transition:all .18s ease-out;
}
.btn-outline-brand:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{
  border:0;background:transparent;color:var(--brand-700);font-weight:600;font-size:15px;
  padding:6px 2px;border-bottom:1.5px solid transparent;transition:border-color .18s ease-out;
}
.btn-ghost:hover{border-bottom-color:var(--brand-700);color:var(--brand-700)}
.burger{display:none;width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);background:#fff;color:var(--ink-900)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1080;visibility:hidden;opacity:0;transition:opacity .2s ease-out,visibility .2s}
.drawer.open{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(8,42,34,.45)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;
  padding:20px;overflow-y:auto;transform:translateX(100%);transition:transform .22s ease-out;
  box-shadow:var(--sh-lg);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin:18px 0}
.drawer-nav a{padding:12px 14px;border-radius:var(--r-btn);color:var(--ink-700);font-weight:500}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700)}
.drawer-search input{width:100%;height:44px;border:1px solid var(--border);border-radius:var(--r-input);padding:0 14px;background:var(--surface-alt)}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 4px;font-size:13px;color:var(--ink-500)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--border)}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-700)}
.crumb .cur{color:var(--ink-900);font-weight:600}

/* ---------- 文章头部 ---------- */
.article-hero{padding:18px 0 34px}
.hero-inner{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--lime-400);color:var(--brand-900);
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--ink-500);margin-bottom:16px}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border)}
h1.article-title{
  font-size:clamp(26px,3.6vw,40px);line-height:1.3;font-weight:700;margin-bottom:16px;
}
h1.article-title::after{
  content:"";display:block;width:64px;height:4px;border-radius:999px;
  background:var(--lime-400);margin-top:18px;
}
.article-lead{color:var(--ink-700);font-size:16.5px;line-height:1.9;max-width:760px;margin:0}
.hero-visual{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);background:var(--surface-alt)}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg)}

/* ---------- 主体布局 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding-bottom:24px}
.main-col{min-width:0}
.article-body{max-width:780px;font-size:16.5px;line-height:1.95;color:var(--ink-700)}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:clamp(21px,2.4vw,27px);line-height:1.35;color:var(--ink-900);
  margin:2em 0 .6em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;
  border-radius:999px;background:var(--lime-400);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--ink-900);margin:1.5em 0 .5em}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink-900);margin:1.3em 0 .4em}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:2px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  border-radius:50%;background:var(--lime-400);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:.5em}
.article-body ol li::before{
  counter-increment:li;content:counter(li);position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:1.4em 0;background:var(--surface-alt);border-left:3px solid var(--accent-500);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:16px 20px;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.4em 0;box-shadow:var(--sh-sm);aspect-ratio:16/9;object-fit:cover;width:100%}
.article-body figure{margin:1.4em 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.4em 0;
  border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;font-size:15px;
}
.article-body thead th{background:var(--brand-100);color:var(--brand-900);font-weight:600;text-align:left;padding:12px 16px}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--border);color:var(--ink-700)}
.article-body tbody tr:nth-child(even){background:#FBFBF8}
.table-scroll{overflow-x:auto;border-radius:var(--r-card)}
.article-body pre,.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--brand-900);color:#D6F0E6;border-radius:12px;padding:18px 20px;
  overflow-x:auto;font-size:14px;line-height:1.8;margin:1.4em 0;
}
.article-body code:not(pre code){
  background:var(--surface-alt);color:var(--brand-700);border-radius:6px;padding:2px 6px;font-size:14px;
}
.article-body a{border-bottom:1px solid rgba(15,92,74,.3)}
.article-body a:hover{border-bottom-color:var(--brand-500)}

/* 内联 CTA */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  background:var(--brand-100);border-radius:var(--r-card);padding:16px 20px;margin:1.6em 0;
}
.inline-cta span{font-size:15px;font-weight:600;color:var(--brand-900)}

/* ---------- 侧栏 ---------- */
.side-col{position:relative}
.side-sticky{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-sm);
}
.side-card h3{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand-500);font-size:14px}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-700);padding:7px 10px 7px 12px;
  border-left:3px solid transparent;border-radius:0 8px 8px 0;line-height:1.6;
  transition:all .18s ease-out;
}
.toc-list a:hover{background:var(--surface-alt);color:var(--brand-700)}
.toc-list a.active{border-left-color:var(--lime-400);background:var(--brand-100);color:var(--brand-700);font-weight:600}
.hot-list{display:flex;flex-direction:column;gap:12px;counter-reset:hot}
.hot-list a{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700);line-height:1.65}
.hot-list a::before{
  counter-increment:hot;content:counter(hot,decimal-leading-zero);
  font-size:12px;font-weight:700;color:var(--brand-500);flex-shrink:0;padding-top:2px;
  font-variant-numeric:tabular-nums;
}
.hot-list a:hover{color:var(--brand-700)}
.side-cta{
  background:var(--brand-900);border-radius:var(--r-card);padding:22px;color:#D6F0E6;
}
.side-cta h3{color:#fff;font-size:16px;margin-bottom:8px}
.side-cta p{font-size:14px;line-height:1.8;margin-bottom:14px;color:#A9CFC1}
.side-cta .btn-cta{width:100%;justify-content:center}

/* ---------- 文末 ---------- */
.article-foot{max-width:780px;margin-top:36px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:22px 0;border-top:1px solid var(--border)}
.tag-row .tag-label{font-size:13px;color:var(--ink-500)}
.tag{
  font-size:13px;color:var(--brand-700);background:var(--brand-100);
  padding:5px 12px;border-radius:999px;transition:all .18s ease-out;
}
.tag:hover{background:var(--lime-400);color:var(--brand-900)}
.back-cat{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;padding:4px 0 10px}

.related{padding:64px 0 0}
.sec-head{margin-bottom:28px}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.sec-head p{color:var(--ink-500);font-size:15px;margin:8px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.list-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-sm);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.list-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#CFDCD5}
.list-card .thumb{overflow:hidden;background:var(--surface-alt)}
.list-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .25s ease-out;border-radius:0}
.list-card:hover .thumb img{transform:scale(1.03)}
.list-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.list-card .badge-cat{margin-bottom:12px;align-self:flex-start}
.list-card h3{font-size:18px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card:hover h3{color:var(--brand-700)}
.list-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card .meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);border-top:1px solid var(--border);padding-top:14px}
.list-card .meta .arrow{margin-left:auto;color:var(--brand-700);transition:transform .18s ease-out}
.list-card:hover .meta .arrow{transform:translateX(3px)}

/* ---------- CTA 条 ---------- */
.cta-strip{margin:72px 0 0;background:var(--brand-900);border-radius:var(--r-lg);padding:44px 48px;color:#D6F0E6}
.cta-strip .cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-strip h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:8px}
.cta-strip p{margin:0;font-size:15px;color:#A9CFC1;max-width:620px}
.cta-strip .btn-outline-brand{background:transparent;border-color:rgba(200,241,105,.7);color:var(--lime-400)}
.cta-strip .btn-outline-brand:hover{background:rgba(200,241,105,.12);color:var(--lime-400)}

/* ---------- 空态 ---------- */
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:var(--surface-alt);border:1px dashed #B9CFC5;border-radius:var(--r-card);
  padding:32px;text-align:center;
}
.empty-state i{font-size:32px;color:var(--brand-500)}
.empty-state p{font-size:15px;color:var(--ink-500);margin:0}

/* ---------- 表单弹层 ---------- */
.modal-content{border:0;border-radius:var(--r-lg);box-shadow:var(--sh-lg);overflow:hidden}
.modal-header{border-bottom:1px solid var(--border);padding:20px 26px}
.modal-title{font-size:19px;font-weight:700}
.modal-body{padding:24px 26px}
.form-label{font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:6px}
.form-control,.form-select{
  height:48px;border-radius:var(--r-input);border:1px solid var(--border);
  background:#fff;font-size:15px;color:var(--ink-900);box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12);
}
textarea.form-control{height:auto;min-height:96px;padding-top:12px}
.form-check-input{width:18px;height:18px;border-color:var(--border);margin-top:.25em}
.form-check-input:checked{background-color:var(--brand-700);border-color:var(--brand-700)}
.form-check-label{font-size:13.5px;color:var(--ink-500);line-height:1.75}
.btn-submit{
  width:100%;height:48px;border:0;border-radius:var(--r-btn);background:var(--accent-500);color:#fff;
  font-weight:600;font-size:16px;box-shadow:var(--sh-cta);transition:all .18s ease-out;
}
.btn-submit:hover{background:var(--accent-600);transform:translateY(-1px)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C7E4D9;margin-top:88px;padding:64px 0 26px;font-size:14.5px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer p{color:#95BFB1;font-size:14px;line-height:1.8;margin:10px 0 0}
.fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px}
.fbrand .brand-mark{background:linear-gradient(140deg,#178B6E,#0F5C4A)}
.foot-phone{color:var(--lime-400);font-size:20px;font-weight:700;margin-top:16px;font-variant-numeric:tabular-nums}
.site-footer ul{display:flex;flex-direction:column;gap:10px}
.site-footer ul a{color:#C7E4D9}
.site-footer ul a:hover{color:var(--lime-400)}
.qr{
  width:120px;height:120px;border-radius:12px;background:rgba(255,255,255,.08);
  border:1px dashed rgba(200,241,105,.5);color:#95BFB1;font-size:12px;line-height:1.6;
  display:flex;align-items:center;justify-content:center;text-align:center;padding:10px;
}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7FAE9E;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-sticky{position:static}
  .side-col{order:2}
  .article-body,.article-foot{max-width:none}
}
@media (max-width:991.98px){
  .main-nav,.command-search{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .hero-inner{grid-template-columns:1fr;gap:26px}
  .hero-visual{order:-1}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-strip{padding:34px 28px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .wrap{padding:0 18px}
  .trust-bar{height:auto;padding:8px 0;font-size:12px}
  .trust-bar .tb-right{display:none}
  .card-grid{grid-template-columns:1fr}
  .related{padding-top:48px}
  .cta-strip{margin-top:56px;border-radius:var(--r-card)}
  .site-footer{padding-top:48px;margin-top:64px}
  .head-right .icon-btn{display:none}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px}
  .head-right .btn-cta{height:36px;padding:0 14px;font-size:14px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .btn-cta,.btn-outline-brand{width:100%;justify-content:center}
  .inline-cta{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .list-card:hover,.btn-cta:hover,.btn-outline-brand:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#082A22;
  --brand-700:#0F5C4A;
  --brand-500:#178B6E;
  --brand-100:#E6F2EC;
  --lime-400:#C8F169;
  --accent-500:#FF7A2F;
  --accent-600:#E8641B;
  --ink-900:#101A16;
  --ink-700:#33443D;
  --ink-500:#66756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EF;
  --border:#DDE4DF;
  --ok:#1F9D6B;
  --warn:#D97706;
  --err:#DC2626;

  --r-card:16px;
  --r-lg:22px;
  --r-btn:10px;
  --r-input:12px;

  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);

  --bs-body-bg:var(--bg);
  --bs-body-color:var(--ink-900);
  --bs-border-color:var(--border);
  --bs-link-color:var(--brand-700);
  --bs-link-hover-color:var(--brand-500);
  --bs-primary:var(--accent-500);
  --bs-border-radius:.625rem;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:700}
h1{font-size:clamp(30px,4.2vw,48px);line-height:1.28}
h2{font-size:clamp(24px,3vw,34px);line-height:1.32}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.wrap{max-width:1200px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-md);background:rgba(255,255,255,.96)}
.nav-inner{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease-out}
.site-header.scrolled .nav-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--brand-700);white-space:nowrap}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:var(--lime-400);font-size:15px;box-shadow:var(--sh-sm);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--ink-700);
  padding:7px 14px;border-radius:999px;transition:all .18s ease-out;white-space:nowrap;
}
.main-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}

.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.command-search{position:relative;width:240px}
.command-search i{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--ink-500);font-size:13px}
.command-search input{
  width:100%;height:38px;border:1px solid var(--border);border-radius:var(--r-btn);
  padding:0 58px 0 34px;font-size:14px;background:var(--surface);color:var(--ink-900);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search input::placeholder{color:var(--ink-500)}
.command-search input:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 4px rgba(23,139,110,.14);
}
.command-search kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  font-size:11px;color:var(--ink-500);background:var(--surface-alt);
  border:1px solid var(--border);border-radius:6px;padding:2px 6px;font-family:inherit;
}
.command-panel{
  position:absolute;top:46px;left:0;right:0;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-lg);
  padding:12px;display:none;
}
.command-search:focus-within .command-panel{display:block}
.command-panel span{display:block;font-size:13px;color:var(--ink-500);padding:6px 8px;border-radius:8px}
.command-panel span:hover{background:var(--surface-alt);color:var(--brand-700)}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:var(--surface);color:var(--ink-700);display:grid;place-items:center;
  transition:all .18s ease-out;
}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border:none;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-cta);transition:all .18s ease-out;cursor:pointer;
}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -6px rgba(255,122,47,.55)}
.btn-accent:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink-700);font-size:17px;
}

/* ---------- 按钮 ---------- */
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:none;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:16px;font-weight:600;
  box-shadow:var(--sh-cta);transition:all .18s ease-out;cursor:pointer;
}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px -8px rgba(255,122,47,.55)}
.btn-ghost-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1.5px solid var(--brand-700);border-radius:var(--r-btn);
  background:var(--surface);color:var(--brand-700);font-size:16px;font-weight:600;
  transition:all .18s ease-out;cursor:pointer;
}
.btn-ghost-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-mini{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 18px;
  border:1.5px solid var(--brand-700);border-radius:var(--r-btn);background:transparent;
  color:var(--brand-700);font-size:14.5px;font-weight:600;transition:all .18s ease-out;
}
.btn-mini:hover{background:var(--brand-100);color:var(--brand-700)}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:44px 0 56px;
  min-height:300px;display:flex;align-items:center;
  background:linear-gradient(180deg,#FBFAF7 0%,var(--bg) 100%);
}
.page-hero .hero-glow{
  position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,105,.28) 0%,rgba(200,241,105,0) 68%);
  pointer-events:none;
}
.breadcrumb-nav{font-size:13px;color:var(--ink-500);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb-nav a{color:var(--ink-500)}
.breadcrumb-nav a:hover{color:var(--brand-700)}
.breadcrumb-nav span.sep{color:var(--border)}
.breadcrumb-nav span.current{color:var(--ink-700);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;
  padding:6px 14px;border-radius:999px;background:var(--brand-100);color:var(--brand-700);
  margin-bottom:18px;
}
.eyebrow i{color:var(--brand-500)}
.page-hero h1{max-width:760px;margin-bottom:.6em}
.lead{font-size:17px;line-height:1.85;color:var(--ink-700);max-width:640px;margin-bottom:1.6em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:18px 26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:var(--ink-700)}
.hero-points i{color:var(--brand-500);font-size:13px}

.hero-visual{position:relative;margin-top:12px}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:var(--sh-lg);border:1px solid var(--border);
}
.hero-mini{
  position:absolute;left:-14px;bottom:-18px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh-lg);
  padding:16px 18px;width:230px;
}
.hero-mini strong{display:block;font-size:13px;color:var(--brand-700);margin-bottom:8px}
.hero-mini ul{list-style:none;padding:0;margin:0}
.hero-mini li{font-size:13px;color:var(--ink-700);line-height:1.75;display:flex;gap:8px;align-items:flex-start}
.hero-mini li i{color:var(--lime-400);font-size:11px;margin-top:6px}
.hero-mini li.done i{color:var(--brand-500)}

/* ---------- 分类胶囊条 ---------- */
.cat-bar{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--surface)}
.cat-bar .wrap{display:flex;align-items:center;gap:12px;padding-top:14px;padding-bottom:14px;overflow-x:auto}
.cat-bar span.bar-label{font-size:13px;color:var(--ink-500);white-space:nowrap}
.cat-pills{display:flex;gap:10px;flex-wrap:nowrap}
.cat-pills a{
  display:inline-block;padding:7px 16px;border-radius:999px;font-size:14px;font-weight:500;
  border:1px solid var(--border);color:var(--ink-700);background:var(--surface);white-space:nowrap;
  transition:all .18s ease-out;
}
.cat-pills a:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-100)}
.cat-pills a.active{background:var(--brand-100);border-color:var(--brand-100);color:var(--brand-700);font-weight:600}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--surface-alt)}
.sec-head{max-width:780px;margin-bottom:44px}
.sec-head h2{margin-bottom:.55em}
.sec-head p{color:var(--ink-700);font-size:16.5px}
.sec-tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-500);margin-bottom:12px;
}
.sec-line{width:44px;height:3px;background:var(--lime-400);border-radius:2px;margin-top:14px}

/* ---------- 步骤时间轴 ---------- */
.steps-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start}
.step-timeline{list-style:none;padding:0;margin:0;position:relative}
.step-timeline::before{
  content:"";position:absolute;left:19px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--lime-400),var(--brand-100));border-radius:2px;
}
.step-item{position:relative;padding:0 0 28px 62px}
.step-item:last-child{padding-bottom:0}
.step-num{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand-500);color:var(--brand-700);
  display:grid;place-items:center;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;box-shadow:var(--sh-sm);
}
.step-body{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);padding:24px 26px;transition:all .2s ease-out;
}
.step-body:hover{box-shadow:var(--sh-md);border-color:#CFE0D7}
.step-body h3{margin-bottom:.55em}
.step-body p{color:var(--ink-700);font-size:15.5px;line-height:1.9;margin-bottom:0}
.step-tip{
  margin-top:16px;background:var(--brand-100);border-radius:var(--r-input);
  padding:12px 16px;font-size:13px;line-height:1.8;color:var(--brand-700);
  display:flex;gap:9px;align-items:flex-start;
}
.step-tip i{margin-top:5px;font-size:12px}

/* ---------- 侧栏目录 ---------- */
.side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-md);padding:24px;
}
.side-card.sticky{position:sticky;top:92px}
.side-card h3{font-size:16px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--border)}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{margin-bottom:4px}
.side-list a{
  display:block;font-size:14px;color:var(--ink-700);padding:8px 10px 8px 14px;
  border-left:3px solid transparent;border-radius:0 8px 8px 0;transition:all .18s ease-out;
}
.side-list a:hover{background:var(--brand-100);color:var(--brand-700);border-left-color:var(--lime-400)}
.side-note{margin-top:20px;padding-top:18px;border-top:1px dashed var(--border);font-size:13px;color:var(--ink-500);line-height:1.8}

/* ---------- 适用场景 ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.scene-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sh-sm);padding:26px 24px;height:100%;transition:all .2s ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#CFE0D7}
.scene-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);font-size:17px;margin-bottom:18px;
}
.scene-card h3{font-size:17px;margin-bottom:.5em}
.scene-card p{font-size:14.5px;color:var(--ink-700);line-height:1.85;margin:0}

/* ---------- 提示卡 ---------- */
.tip-card{
  background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--lime-400);
  border-radius:var(--r-card);box-shadow:var(--sh-md);padding:32px 34px;
  display:flex;flex-wrap:wrap;align-items:center;gap:22px;justify-content:space-between;
}
.tip-card .tip-text{max-width:640px}
.tip-card h3{margin-bottom:.45em;font-size:19px}
.tip-card p{color:var(--ink-700);font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px}
.accordion-item{
  background:transparent;border:none;border-top:1px solid var(--border);
}
.accordion-item:last-child{border-bottom:1px solid var(--border)}
.accordion-button{
  position:relative;background:transparent;box-shadow:none;border:none;
  padding:20px 48px 20px 20px;font-size:17px;font-weight:600;color:var(--ink-900);
  line-height:1.6;transition:color .18s ease-out;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:22px;width:4px;height:20px;border-radius:2px;
  background:var(--border);transition:background .2s ease-out;
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none}
.accordion-button:not(.collapsed)::before{background:var(--lime-400)}
.accordion-button:focus{box-shadow:none;border:none}
.accordion-button::after{
  content:"+";background-image:none;font-size:18px;font-weight:400;color:var(--brand-700);
  width:28px;height:28px;border:1px solid var(--border);border-radius:50%;
  display:grid;place-items:center;position:absolute;right:8px;top:50%;
  transform:translateY(-50%);transition:all .2s ease-out;
}
.accordion-button:not(.collapsed)::after{
  content:"−";background-image:none;transform:translateY(-50%) rotate(180deg);
  border-color:var(--brand-500);background:var(--brand-100);
}
.accordion-body{padding:0 60px 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-700);max-width:760px}

/* ---------- 表单弹层 ---------- */
.modal-content{
  border:none;border-radius:var(--r-card);box-shadow:var(--sh-lg);background:var(--surface);
}
.modal-header{border-bottom:1px solid var(--border);padding:20px 26px}
.modal-title{font-size:18px;font-weight:700}
.modal-body{padding:24px 26px 28px}
.modal-dialog{max-width:520px}
.form-label{font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px}
.form-control,.form-select{
  height:48px;border:1px solid var(--border);border-radius:var(--r-input);
  font-size:15px;color:var(--ink-900);background:var(--surface);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding-top:12px;line-height:1.8}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(23,139,110,.14);
}
.form-check-input{width:18px;height:18px;border-color:var(--border);margin-top:2px}
.form-check-input:checked{background-color:var(--brand-700);border-color:var(--brand-700)}
.form-check-label{font-size:13.5px;color:var(--ink-700);line-height:1.75}
.privacy-note{font-size:12.5px;color:var(--ink-500);margin-top:10px;line-height:1.75}
.btn-close{opacity:.5}
.btn-close:hover{opacity:.85}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#D3E4DC;padding:64px 0 0;margin-top:0}
.site-footer a{color:#D3E4DC}
.site-footer a:hover{color:var(--lime-400)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.fbrand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#fff;margin-bottom:14px}
.fbrand .brand-mark{background:rgba(200,241,105,.16);color:var(--lime-400)}
.site-footer p{font-size:14px;color:#A9C4B9;line-height:1.85;margin:0 0 10px}
.foot-phone{font-size:20px;font-weight:700;color:var(--lime-400);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer ul li{margin-bottom:11px}
.site-footer ul a{font-size:14px}
.qr{
  width:120px;height:120px;border-radius:12px;border:1px dashed rgba(200,241,105,.45);
  display:grid;place-items:center;text-align:center;font-size:12px;color:#A9C4B9;
  line-height:1.7;padding:10px;background:rgba(255,255,255,.04);
}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8FAEA2;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .steps-layout{grid-template-columns:minmax(0,1fr)}
  .side-card.sticky{position:static}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .main-nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:var(--surface);
    flex-direction:column;align-items:stretch;gap:6px;padding:20px 24px;
    transform:translateY(-8px);opacity:0;visibility:hidden;transition:all .22s ease-out;
    overflow-y:auto;z-index:1029;border-top:1px solid var(--border);
  }
  .main-nav.open{transform:translateY(0);opacity:1;visibility:visible}
  .main-nav a{padding:13px 16px;border-radius:var(--r-input);font-size:16px}
  .nav-toggle{display:grid;place-items:center;order:3;margin-left:auto}
  .nav-right{order:4;margin-left:8px}
  .command-search{display:none}
  .section{padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-mini{position:static;width:100%;margin-top:16px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:48px 0}
  .grid-4{grid-template-columns:minmax(0,1fr)}
  .page-hero{padding:32px 0 44px;min-height:auto}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-cta,.hero-actions .btn-ghost-line{width:100%}
  .tip-card{padding:24px;flex-direction:column;align-items:flex-start}
  .tip-card .btn-ghost-line{width:100%}
  .step-item{padding-left:54px}
  .step-body{padding:20px}
  .cat-bar .wrap{padding-left:16px;padding-right:16px}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px}
  .brand span.brand-text{font-size:15px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column}
  .accordion-body{padding-right:20px}
  .btn-accent{height:38px;padding:0 14px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .scene-card:hover,.btn-cta:hover,.btn-accent:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --brand-900:#082A22;
  --brand-700:#0F5C4A;
  --brand-500:#178B6E;
  --brand-100:#E6F2EC;
  --lime-400:#C8F169;
  --accent-500:#FF7A2F;
  --accent-600:#E8641B;
  --ink-900:#101A16;
  --ink-700:#33443D;
  --ink-500:#66756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EF;
  --border:#DDE4DF;
  --ok:#1F9D6B;
  --warn:#D97706;
  --err:#DC2626;

  --r-card:16px;
  --r-lg:22px;
  --r-btn:10px;
  --r-input:12px;

  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);

  --bs-primary:#0F5C4A;
  --bs-body-bg:#F7F6F2;
  --bs-body-color:#33443D;
  --bs-border-color:#DDE4DF;
  --bs-link-color:#0F5C4A;
  --bs-link-hover-color:#178B6E;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(30px,4.2vw,48px);line-height:1.28}
h2{font-size:clamp(24px,3vw,34px);line-height:1.32}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1200px) and (max-width:1399px){.wrap{max-width:1140px}}

.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:.6em}
.section-head p{color:var(--ink-500);margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-700);background:var(--lime-400);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.lead{max-width:780px}

/* ---------- 信任条 ---------- */
.trustbar{
  background:var(--brand-900);color:#CFE7DD;font-size:13.5px;
  min-height:34px;display:flex;align-items:center;
}
.trustbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.trustbar .tb-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.trustbar i{color:var(--lime-400)}
.trustbar .tb-right{color:#fff;font-weight:600;white-space:nowrap}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(180%) blur(8px);
  transition:box-shadow .2s ease-out,height .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-md)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;transition:height .2s ease-out}
.site-header.scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:var(--sh-sm);
}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:.01em}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto}
.main-nav a{
  font-size:15px;font-weight:500;color:var(--ink-700);
  padding:8px 14px;border-radius:999px;white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.main-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.command-search{position:relative;width:240px}
.command-search i.fa-magnifying-glass{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--ink-500);pointer-events:none;
}
.command-search input{
  width:100%;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--border);background:var(--surface-alt);
  padding:0 58px 0 34px;font-size:14px;color:var(--ink-700);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.command-search input::placeholder{color:var(--ink-500)}
.command-search input:focus{
  outline:none;background:#fff;border-color:var(--brand-500);
  box-shadow:0 0 0 8px rgba(23,139,110,.10);
}
.command-search kbd{
  position:absolute;right:10px;top:50%;transform:translateY(-50%);
  font-size:11px;font-family:inherit;color:var(--ink-500);
  background:#fff;border:1px solid var(--border);
  border-radius:6px;padding:1px 6px;
}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);
  display:grid;place-items:center;color:var(--brand-700);
  border:1px solid var(--border);background:#fff;
  transition:background .18s ease-out,transform .18s ease-out;
}
.icon-btn:hover{background:var(--brand-100);transform:translateY(-1px)}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:var(--r-btn);
  border:1px solid var(--border);background:#fff;color:var(--brand-700);
  align-items:center;justify-content:center;font-size:16px;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:#fff;
  padding:16px 24px 22px;
}
.mobile-drawer.open{display:block}
.mobile-drawer .command-search{width:100%;margin-bottom:14px}
.mobile-drawer a.drawer-link{
  display:block;padding:12px 4px;font-size:15px;font-weight:500;
  color:var(--ink-700);border-bottom:1px solid var(--border);
}
.mobile-drawer a.drawer-link.active{color:var(--brand-700);font-weight:700}
.mobile-drawer .btn{width:100%;margin-top:16px;justify-content:center}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:all .18s ease-out;text-decoration:none;
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:var(--sh-cta)}
.btn-primary:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -8px rgba(255,122,47,.55)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--brand-700);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0;height:auto;border:none}
.btn-ghost span{border-bottom:1.5px solid transparent;transition:border-color .18s ease-out;padding-bottom:2px}
.btn-ghost:hover span{border-color:var(--brand-700)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-1px)}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--ink-500);padding:22px 0 0}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{margin:0 8px;color:var(--border)}
.crumb .current{color:var(--ink-900);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{background:var(--brand-900);color:#E8F3EE;position:relative;overflow:hidden;min-height:260px;display:flex;align-items:center}
.page-hero::after{
  content:"";position:absolute;inset:auto -120px -180px auto;width:460px;height:460px;
  background:radial-gradient(circle,rgba(200,241,105,.16),transparent 65%);
  pointer-events:none;
}
.hero-inner{display:grid;grid-template-columns:1.35fr .9fr;gap:40px;align-items:center;padding:48px 0 52px;position:relative;z-index:1}
.hero-copy .eyebrow{background:rgba(200,241,105,.16);color:var(--lime-400)}
.page-hero h1{color:#fff;margin-bottom:.5em}
.hero-sub{color:#B9D4C9;font-size:17px;max-width:560px;margin-bottom:1.6em}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(200,241,105,.22);
  box-shadow:var(--sh-lg);
}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg)}

/* ---------- 分类胶囊 ---------- */
.cat-pills{display:flex;gap:10px;overflow-x:auto;padding:18px 0 6px;scrollbar-width:none}
.cat-pills::-webkit-scrollbar{display:none}
.cat-pills a{
  flex:0 0 auto;font-size:14.5px;font-weight:500;color:var(--ink-700);
  background:#fff;border:1px solid var(--border);border-radius:999px;
  padding:8px 18px;transition:all .18s ease-out;
}
.cat-pills a:hover{background:var(--brand-100);color:var(--brand-700);border-color:var(--brand-100)}
.cat-pills a.active{background:var(--lime-400);color:var(--brand-900);border-color:var(--lime-400);font-weight:700}

/* ---------- 双栏对照 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.compare h3.col-title{
  font-size:15px;font-weight:700;letter-spacing:.06em;color:var(--ink-500);
  text-transform:none;margin-bottom:18px;
}
.risk-list{display:flex;flex-direction:column;gap:14px}
.risk-item{
  background:#fff;border:1px solid var(--border);border-left:3px solid var(--accent-500);
  border-radius:12px;padding:18px 20px;box-shadow:var(--sh-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.risk-item:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.risk-item strong{display:block;color:var(--ink-900);font-size:16.5px;font-weight:600;margin-bottom:2px}
.risk-item span{font-size:14px;color:var(--ink-500);line-height:1.75}

.measure-list{display:flex;flex-direction:column;gap:14px}
.measure-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-md);display:flex;gap:16px;align-items:flex-start;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.measure-card:hover{transform:translateY(-3px);box-shadow:var(--sh-lg)}
.measure-icon{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-700);
  display:grid;place-items:center;font-size:17px;
}
.measure-card h3{font-size:17px;margin-bottom:4px}
.measure-card p{margin:0;font-size:14.5px;color:var(--ink-500);line-height:1.8}

/* ---------- 安全建议 ---------- */
.advice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.advice-row{
  display:flex;gap:14px;background:transparent;border-top:1px solid var(--border);
  padding:20px 2px 0;align-items:flex-start;
}
.advice-row .ai{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;
  background:var(--brand-900);color:var(--lime-400);
  display:grid;place-items:center;font-size:15px;
}
.advice-row h3{font-size:16.5px;margin-bottom:4px}
.advice-row p{font-size:14px;color:var(--ink-500);line-height:1.8;margin:0}

/* ---------- 自检清单 ---------- */
.check-wrap{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:36px;box-shadow:var(--sh-md);
}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 32px}
.check-grid li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.8}
.check-grid li i{color:var(--brand-500);margin-top:6px;font-size:14px}
.check-grid li b{color:var(--ink-900);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:900px}
.acc-item{border-top:1px solid var(--border)}
.acc-item:last-child{border-bottom:1px solid var(--border)}
.acc-head{
  width:100%;background:transparent;border:none;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px 20px 16px;position:relative;cursor:pointer;
}
.acc-head::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;
  border-radius:4px;background:var(--border);transition:background .2s ease-out;
}
.acc-head[aria-expanded="true"]::before{background:var(--lime-400)}
.acc-q{font-size:17px;font-weight:600;color:var(--ink-900)}
.acc-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--border);background:#fff;color:var(--brand-700);
  display:grid;place-items:center;font-size:12px;
  transition:transform .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.acc-head[aria-expanded="true"] .acc-icon{transform:rotate(135deg);background:var(--brand-100);border-color:var(--brand-100)}
.acc-head:hover .acc-q{color:var(--brand-700)}
.acc-body{padding:0 4px 22px 16px;font-size:15px;line-height:1.85;color:var(--ink-500);max-width:760px}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:transparent;border:1.5px solid var(--brand-700);border-radius:var(--r-lg);
  padding:32px 36px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-bar h2{font-size:clamp(21px,2.4vw,26px);margin-bottom:.35em}
.cta-bar p{margin:0;color:var(--ink-500);font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#B9D4C9;margin-top:88px;padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:14px}
.fbrand .brand-mark{background:rgba(200,241,105,.16);color:var(--lime-400);box-shadow:none}
.site-footer p{font-size:14px;line-height:1.8;color:#9FBFB3;margin:0 0 10px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.site-footer ul li{margin-bottom:10px}
.site-footer ul li a{color:#B9D4C9;font-size:14.5px}
.site-footer ul li a:hover{color:var(--lime-400)}
.foot-phone{font-size:20px;font-weight:700;color:var(--lime-400);margin-top:6px;font-variant-numeric:tabular-nums}
.qr{
  width:120px;height:120px;border-radius:14px;border:1px dashed rgba(200,241,105,.4);
  background:rgba(255,255,255,.05);display:grid;place-items:center;text-align:center;
  font-size:12px;line-height:1.6;color:#9FBFB3;padding:10px;
}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(200,241,105,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FAE A2;color:#8FAEA2;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .command-search{width:200px}
  .main-nav a{padding:8px 10px;font-size:14.5px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .section-tight{padding:44px 0}
  .main-nav{display:none}
  .command-search{display:none}
  .menu-toggle{display:flex}
  .header-tools .btn{display:none}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:40px 0 44px}
  .hero-visual{max-width:520px}
  .compare{grid-template-columns:1fr;gap:36px}
  .advice-grid{grid-template-columns:1fr;gap:0}
  .advice-row{padding-top:18px;margin-bottom:18px}
  .check-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:48px 0}
  .section-tight{padding:36px 0}
  .trustbar .tb-right{display:none}
  .check-wrap{padding:24px}
  .cta-bar{padding:24px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .page-hero{min-height:0}
}
@media (max-width:576px){
  .wrap{padding:0 18px}
  .foot-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cat-pills a{font-size:14px;padding:7px 14px}
  .acc-q{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .btn:hover,.measure-card:hover,.risk-item:hover,.icon-btn:hover{transform:none!important}
}

/* roulang page: category3 */
:root{
  --brand-900:#082A22;
  --brand-700:#0F5C4A;
  --brand-500:#178B6E;
  --brand-100:#E6F2EC;
  --lime-400:#C8F169;
  --accent-500:#FF7A2F;
  --accent-600:#E8641B;
  --ink-900:#101A16;
  --ink-700:#33443D;
  --ink-500:#66756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EF;
  --border:#DDE4DF;
  --ok:#1F9D6B;
  --warn:#D97706;
  --err:#DC2626;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:10px;
  --r-input:12px;
  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);
  --grid-line:rgba(200,241,105,.38);

  --bs-primary:#0F5C4A;
  --bs-secondary:#66756E;
  --bs-body-bg:#F7F6F2;
  --bs-body-color:#101A16;
  --bs-border-color:#DDE4DF;
  --bs-link-color:#0F5C4A;
  --bs-link-hover-color:#178B6E;
  --bs-border-radius:16px;
  --bs-border-radius-sm:10px;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-500);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:.01em;}
h1{font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.28;}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;}
h3{font-size:20px;font-weight:600;line-height:1.45;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:var(--lime-400);color:var(--brand-900);}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;}

.wrap{width:100%;max-width:1140px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.wrap{max-width:1200px;}}

/* ============ 顶部信任条 ============ */
.topbar{background:var(--brand-900);color:#DDF3E8;font-size:13.5px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px;padding-top:4px;padding-bottom:4px;}
.topbar-tip{display:inline-flex;align-items:center;gap:8px;color:#EAFBF1;}
.topbar-tip i{color:var(--lime-400);}
.topbar-contact{color:#9FC9B6;white-space:nowrap;}
@media (max-width:767.98px){
  .topbar-tip{font-size:12.5px;}
  .topbar-contact{display:none;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-md);}
.nav-row{display:flex;align-items:center;gap:20px;height:64px;transition:height .2s ease-out;}
.site-header.scrolled .nav-row{height:56px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#EAFBF1;font-size:15px;box-shadow:var(--sh-sm);
}
.brand-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.main-nav a{
  display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-700);white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.main-nav a:hover{background:var(--brand-100);color:var(--brand-700);}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 10px 0 12px;
  background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.cmd-search:focus-within{background:#fff;border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12);}
.cmd-search i{color:var(--ink-500);font-size:13px;}
.cmd-search input{border:0;outline:0;background:transparent;flex:1;font-size:14px;color:var(--ink-900);min-width:0;}
.cmd-search kbd{
  font-size:11px;color:var(--ink-500);background:#fff;border:1px solid var(--border);
  border-radius:6px;padding:1px 6px;font-family:inherit;
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--border);
  background:#fff;color:var(--ink-700);align-items:center;justify-content:center;font-size:16px;
}
.drawer-search{display:none;}

.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;letter-spacing:.01em;
  box-shadow:var(--sh-cta);transition:background .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-cta:hover{background:var(--accent-600);transform:translateY(-1px);color:#fff;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700);
  font-size:15px;font-weight:600;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-line{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand-700);font-weight:600;
  border-bottom:2px solid transparent;transition:border-color .18s ease-out;
}
.btn-line:hover{border-color:var(--lime-400);}

/* ============ 页头 Hero ============ */
.cat-hero{position:relative;overflow:hidden;padding:58px 0 46px;text-align:center;background:var(--bg);}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(circle at 50% 34%,#000 0%,transparent 76%);
  mask-image:radial-gradient(circle at 50% 34%,#000 0%,transparent 76%);
  opacity:.9;
}
.cat-hero::after{
  content:"";position:absolute;left:50%;top:-140px;width:620px;height:340px;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(200,241,105,.40),transparent 72%);
  pointer-events:none;
}
.cat-hero .wrap{position:relative;z-index:2;}
.crumb{font-size:13px;color:var(--ink-500);margin-bottom:18px;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-700);}
.crumb span.sep{margin:0 8px;color:#B9C6BF;}
.crumb .cur{color:var(--ink-900);}
.cat-hero h1{max-width:880px;margin:0 auto;}
.cat-hero .lede{
  max-width:700px;margin:16px auto 0;font-size:17px;line-height:1.85;color:var(--ink-700);
}
.hero-meta{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--sh-sm);
  font-size:13px;color:var(--ink-700);
}
.chip i{color:var(--brand-500);font-size:12px;}

/* ============ 分类胶囊条 ============ */
.pill-bar{padding:0 0 26px;background:var(--bg);}
.pill-list{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.pill-list a{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--ink-700);
  font-size:14.5px;font-weight:500;box-shadow:var(--sh-sm);
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.pill-list a:hover{background:var(--brand-100);color:var(--brand-700);border-color:#CBE3D8;transform:translateY(-2px);}
.pill-list a.active{background:var(--brand-100);border-color:#CBE3D8;color:var(--brand-700);font-weight:600;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section.tight{padding:56px 0;}
.section-alt{background:var(--surface-alt);}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-700);
  background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.sec-kicker i{color:var(--brand-500);}
.sec-head h2{margin-bottom:14px;}
.sec-head h2::after{
  content:"";display:block;width:46px;height:4px;border-radius:99px;background:var(--lime-400);margin-top:14px;
}
.sec-head.center h2::after{margin-left:auto;margin-right:auto;}
.sec-head p{color:var(--ink-700);font-size:16px;margin:0;max-width:780px;}

/* ============ 下载卡片 ============ */
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.dl-card{
  background:var(--surface);border-radius:var(--r-lg);padding:28px;
  border:1px solid var(--border);box-shadow:var(--sh-md);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.dl-card.primary{border:2px solid var(--brand-700);}
.dl-card.soft{background:var(--brand-100);border-color:#CBE3D8;}
.dl-top{display:flex;align-items:flex-start;gap:16px;margin-bottom:20px;}
.dl-ico{
  width:52px;height:52px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));color:#fff;font-size:20px;flex:0 0 auto;
}
.dl-card.soft .dl-ico{background:#fff;color:var(--brand-700);border:1px solid #CBE3D8;}
.dl-top h3{margin-bottom:4px;font-size:20px;}
.dl-top .dl-sub{font-size:13.5px;color:var(--ink-500);margin:0;}
.dl-spec{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:22px;}
.spec-item{
  background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 14px;
}
.dl-card.soft .spec-item{background:#fff;border-color:#D8EAE1;}
.spec-item .k{font-size:12.5px;color:var(--ink-500);display:block;}
.spec-item .v{font-size:16px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;}
.dl-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;}
.dl-note{font-size:13px;color:var(--ink-500);margin:14px 0 0;}

/* ============ 图文核对区 ============ */
.check-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:center;}
.check-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);}
.check-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);}
.check-figure .badge-float{
  position:absolute;left:20px;bottom:20px;background:rgba(8,42,34,.88);color:#EAFBF1;
  border-radius:999px;padding:8px 16px;font-size:13px;backdrop-filter:blur(4px);
}
.check-list{display:grid;gap:16px;}
.check-item{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-card);box-shadow:var(--sh-sm);
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.check-item:hover{border-color:#CBE3D8;transform:translateY(-2px);}
.check-item .num{
  width:30px;height:30px;border-radius:9px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);font-weight:700;font-size:14px;font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:16.5px;margin-bottom:2px;}
.check-item p{margin:0;font-size:14.5px;color:var(--ink-700);line-height:1.8;}

/* ============ 版本表格 ============ */
.table-shell{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-md);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
.ver-table{width:100%;border-collapse:separate;border-spacing:0;min-width:680px;font-variant-numeric:tabular-nums;}
.ver-table thead th{
  background:var(--brand-100);color:var(--brand-700);font-size:14px;font-weight:600;
  text-align:left;padding:15px 20px;white-space:nowrap;border-bottom:1px solid #CBE3D8;
}
.ver-table tbody td{
  padding:16px 20px;font-size:14.8px;color:var(--ink-700);border-bottom:1px solid #EDF1EE;background:#fff;
}
.ver-table tbody tr:last-child td{border-bottom:0;}
.ver-table tbody tr:hover td{background:var(--surface-alt);}
.ver-tag{
  display:inline-block;padding:3px 11px;border-radius:999px;background:var(--lime-400);
  color:var(--brand-900);font-weight:700;font-size:13.5px;
}
.ver-table td.newest{color:var(--ink-900);font-weight:600;}

/* ============ 说明行 / 返回顶部 ============ */
.note-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  margin-top:22px;padding:18px 22px;background:var(--surface-alt);border-radius:var(--r-card);
  border:1px solid var(--border);
}
.note-row p{margin:0;font-size:14px;color:var(--ink-700);max-width:760px;}
.to-top{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand-700);white-space:nowrap;}
.to-top:hover{color:var(--accent-600);}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{border-top:1px solid var(--border);}
.faq-item:last-child{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:20px 4px;background:transparent;border:0;cursor:pointer;
}
.faq-q .bar{width:4px;height:22px;border-radius:99px;background:var(--border);transition:background .2s ease-out;flex:0 0 auto;}
.faq-item.open .faq-q .bar{background:var(--lime-400);}
.faq-q .qt{flex:1;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.faq-q .ico{
  width:26px;height:26px;border-radius:999px;border:1px solid var(--border);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;flex:0 0 auto;
  transition:transform .2s ease-out,background .2s ease-out,border-color .2s ease-out;
}
.faq-item.open .faq-q .ico{transform:rotate(135deg);background:var(--brand-100);border-color:#CBE3D8;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease-out;}
.faq-item.open .faq-a{max-height:300px;}
.faq-a p{margin:0 0 20px;padding-left:18px;max-width:760px;font-size:15px;line-height:1.85;color:var(--ink-700);}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand-900),var(--brand-700));
  border-radius:var(--r-lg);padding:40px 38px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  box-shadow:var(--sh-lg);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:8px;}
.cta-band p{margin:0;color:#C6E4D6;font-size:15px;max-width:620px;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-band .btn-ghost{background:transparent;border-color:#8FD3B8;color:#EAFBF1;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#C6E4D6;padding:64px 0 26px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.fbrand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;}
.fbrand .brand-mark{background:rgba(255,255,255,.12);color:var(--lime-400);}
.site-footer p{font-size:14px;line-height:1.8;color:#9FC9B6;margin:0 0 8px;}
.foot-phone{font-size:20px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{color:#9FC9B6;font-size:14px;transition:color .18s ease-out;}
.site-footer ul a:hover{color:var(--lime-400);}
.qr{
  width:120px;height:120px;border-radius:12px;border:1px dashed rgba(200,241,105,.5);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;line-height:1.6;color:#9FC9B6;background:rgba(255,255,255,.04);padding:10px;
}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13px;color:#8FBBA6;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .section.tight{padding:48px 0;}
  .cmd-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--sh-lg);
    padding:16px 24px 22px;margin:0;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 14px;border-radius:12px;font-size:15.5px;}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:44px;margin-bottom:10px;padding:0 14px;
    background:var(--surface-alt);border:1px solid var(--border);border-radius:var(--r-btn);
  }
  .drawer-search input{border:0;outline:0;background:transparent;flex:1;font-size:14px;}
  .drawer-search i{color:var(--ink-500);}
  .check-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .section{padding:48px 0;}
  .section.tight{padding:40px 0;}
  .cat-hero{padding:40px 0 34px;}
  .cat-hero .lede{font-size:15.5px;}
  .dl-grid{grid-template-columns:minmax(0,1fr);}
  .dl-spec{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:30px 22px;border-radius:var(--r-card);}
  .table-scroll{overflow:visible;}
  .ver-table{min-width:0;display:block;}
  .ver-table thead{display:none;}
  .ver-table tbody,.ver-table tr,.ver-table td{display:block;width:100%;}
  .ver-table tbody tr{
    background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
    padding:14px 16px;margin:0 16px 14px;box-shadow:var(--sh-sm);
  }
  .ver-table tbody tr:first-child{margin-top:16px;}
  .ver-table tbody tr:last-child{margin-bottom:16px;}
  .ver-table tbody td{
    border:0;padding:6px 0;display:flex;justify-content:space-between;gap:14px;align-items:flex-start;
    background:transparent;font-size:14.5px;
  }
  .ver-table tbody tr:hover td{background:transparent;}
  .ver-table tbody td::before{
    content:attr(data-label);color:var(--ink-500);font-size:13px;flex:0 0 84px;padding-top:2px;
  }
  .ver-table tbody td:first-child{border-bottom:1px dashed var(--border);padding-bottom:10px;margin-bottom:6px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .wrap{padding:0 18px;}
  .brand-text{font-size:15.5px;}
  .nav-row{gap:12px;}
  .btn-cta{padding:0 16px;font-size:14.5px;}
  .cta-band .cta-actions{width:100%;}
  .cta-band .cta-actions .btn-cta,
  .cta-band .cta-actions .btn-ghost{width:100%;justify-content:center;}
  .hero-meta{gap:8px;}
  .chip{font-size:12.5px;padding:5px 12px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --brand-900:#082A22;
  --brand-700:#0F5C4A;
  --brand-500:#178B6E;
  --brand-100:#E6F2EC;
  --lime-400:#C8F169;
  --accent-500:#FF7A2F;
  --accent-600:#E8641B;
  --ink-900:#101A16;
  --ink-700:#33443D;
  --ink-500:#66756E;
  --bg:#F7F6F2;
  --surface:#FFFFFF;
  --surface-alt:#EEF3EF;
  --border:#DDE4DF;
  --ok:#1F9D6B;
  --warn:#D97706;
  --err:#DC2626;
  --r-card:16px;
  --r-lg:22px;
  --r-btn:10px;
  --r-input:12px;
  --sh-sm:0 1px 2px rgba(11,26,23,.06);
  --sh-md:0 6px 20px -8px rgba(11,26,23,.14);
  --sh-lg:0 18px 40px -18px rgba(11,26,23,.22);
  --sh-cta:0 8px 24px -6px rgba(255,122,47,.45);
  --bs-primary:#0F5C4A;
  --bs-primary-rgb:15,92,74;
  --bs-body-bg:#F7F6F2;
  --bs-body-color:#101A16;
  --bs-border-color:#DDE4DF;
  --bs-link-color:#0F5C4A;
  --bs-link-hover-color:#178B6E;
  --bs-font-sans-serif:"Inter","PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --bs-border-radius:12px;
  --bs-body-font-family:var(--bs-font-sans-serif);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4{margin:0;color:var(--ink-900);letter-spacing:.005em}
h1{font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.28}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32}
h3{font-size:20px;font-weight:600;line-height:1.45}
h4{font-size:16px;font-weight:700;line-height:1.5}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1200px) and (max-width:1399px){.wrap{max-width:1140px}}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部信任条 ============ */
.topbar{background:var(--brand-900);color:#DCEBE4;font-size:13.5px;line-height:34px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note i{color:var(--lime-400);margin-right:8px}
.topbar-contact{color:#9FC4B6;white-space:nowrap}
@media (max-width:767px){.topbar-contact{display:none}.topbar-inner{justify-content:center}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,246,242,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.scrolled{box-shadow:var(--sh-md);background:rgba(255,255,255,.96)}
.header-inner{display:flex;align-items:center;gap:18px;height:64px;transition:height .2s ease-out}
.site-header.scrolled .header-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--brand-700)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;font-size:15px;box-shadow:var(--sh-sm);
}
.brand-name{font-size:17px;font-weight:700;color:var(--brand-700);white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.main-nav a{
  display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-700);white-space:nowrap;
  transition:background .18s ease-out,color .18s ease-out;
}
.main-nav a:hover{background:var(--brand-100);color:var(--brand-700)}
.main-nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.command-search{
  position:relative;display:flex;align-items:center;gap:8px;
  width:240px;height:38px;padding:0 10px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.command-search i{color:var(--ink-500);font-size:13px}
.command-search input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink-900);
}
.command-search input::placeholder{color:#9AA8A1}
.command-search kbd{
  font-size:11px;font-family:inherit;color:var(--ink-500);
  background:var(--surface-alt);border:1px solid var(--border);
  border-radius:6px;padding:1px 6px;line-height:1.6;
}
.command-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12)}
.cs-panel{
  display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-input);
  box-shadow:var(--sh-lg);padding:10px;z-index:40;
}
.command-search:focus-within .cs-panel{display:block}
.cs-panel .cs-title{display:block;font-size:12px;color:var(--ink-500);padding:2px 8px 6px}
.cs-panel a{display:block;padding:7px 10px;border-radius:8px;font-size:14px;color:var(--ink-700)}
.cs-panel a:hover{background:var(--brand-100);color:var(--brand-700)}
.icon-link{
  width:38px;height:38px;border-radius:var(--r-btn);display:grid;place-items:center;
  color:var(--brand-700);background:var(--surface);border:1px solid var(--border);
  transition:background .18s ease-out,border-color .18s ease-out;
}
.icon-link:hover{background:var(--brand-100);border-color:var(--brand-500)}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;border:0;border-radius:var(--r-btn);
  background:var(--accent-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-cta);
  transition:background .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-cta:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -6px rgba(255,122,47,.55)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  background:var(--surface);border:1px solid var(--border);color:var(--brand-700);font-size:16px;
}
.mobile-panel{
  display:none;border-top:1px solid var(--border);background:var(--surface);
  padding:16px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel .mp-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;margin:0 24px 14px;
  border:1px solid var(--border);border-radius:var(--r-input);background:var(--surface-alt);
}
.mobile-panel .mp-search input{border:0;outline:0;background:transparent;flex:1;font-size:15px}
.mobile-panel nav{display:flex;flex-direction:column;padding:0 12px}
.mobile-panel nav a{padding:12px 12px;border-radius:10px;font-size:15.5px;color:var(--ink-700)}
.mobile-panel nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.mobile-panel .mp-cta{margin:14px 24px 0;display:flex;width:calc(100% - 48px)}
@media (max-width:1199px){
  .command-search{width:190px}
  .main-nav a{padding:8px 11px;font-size:14.5px}
}
@media (max-width:991px){
  .main-nav,.command-search,.icon-link{display:none}
  .nav-toggle{display:grid;place-items:center}
}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-main{background:var(--accent-500);color:#fff;border:0;box-shadow:var(--sh-cta)}
.btn-main:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px -6px rgba(255,122,47,.55)}
.btn-line{background:var(--surface);color:var(--brand-700);border:1.5px solid var(--brand-700)}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;border:0;padding:0;color:var(--brand-700);height:auto}
.btn-ghost span{border-bottom:1.5px solid transparent;transition:border-color .18s ease-out}
.btn-ghost:hover span{border-color:var(--brand-500)}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--ink-500);padding:18px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0;padding:0;list-style:none}
.crumb li::after{content:"/";margin-left:8px;color:#B7C3BD}
.crumb li:last-child::after{content:"";margin:0}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-700)}
.crumb .cur{color:var(--ink-900);font-weight:600}

/* ============ Hero ============ */
.help-hero{
  position:relative;overflow:hidden;
  background:var(--bg);
  border-bottom:1px solid var(--border);
  padding:44px 0 40px;
  text-align:center;
}
.help-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(200,241,105,.28) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(200,241,105,.28) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 78%);
  mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 78%);
  pointer-events:none;
}
.help-hero > .wrap{position:relative;z-index:1}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;background:var(--brand-100);
  color:var(--brand-700);font-size:13px;font-weight:600;margin-bottom:14px;
}
.hero-tag i{color:var(--brand-500)}
.help-hero h1{max-width:900px;margin:0 auto 12px}
.hero-sub{max-width:640px;margin:0 auto 22px;color:var(--ink-700);font-size:16.5px;line-height:1.8}
.hero-search{
  display:flex;align-items:center;gap:12px;
  max-width:640px;margin:0 auto;height:52px;padding:0 16px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-input);
  box-shadow:var(--sh-md);transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.hero-search i{color:var(--brand-500)}
.hero-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:16px;color:var(--ink-900)}
.hero-search input::placeholder{color:#9AA8A1}
.hero-search kbd{
  font-size:11.5px;font-family:inherit;color:var(--ink-500);
  background:var(--surface-alt);border:1px solid var(--border);border-radius:6px;padding:2px 7px;
}
.hero-search:focus-within{border-color:var(--brand-500);box-shadow:0 0 0 8px rgba(23,139,110,.12),var(--sh-md)}
.pill-row{
  display:flex;gap:10px;justify-content:center;flex-wrap:wrap;
  margin-top:22px;
}
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;background:var(--surface);
  border:1px solid var(--border);color:var(--ink-700);font-size:14px;font-weight:500;
  transition:background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.pill:hover{background:var(--brand-100);border-color:var(--brand-500);color:var(--brand-700)}
.pill.on{background:var(--surface-alt);border-color:var(--brand-500);color:var(--brand-700)}
@media (max-width:767px){
  .help-hero{padding:32px 0 32px}
  .pill-row{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch}
  .pill{flex:0 0 auto}
}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.tight{padding:56px 0}
.section-head{max-width:780px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:12px;position:relative;padding-bottom:14px}
.section-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:56px;height:4px;border-radius:4px;background:var(--lime-400);
}
.section-head.center h2::after{left:50%;transform:translateX(-50%)}
.section-head p{color:var(--ink-700);margin:0}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-500);text-transform:uppercase;margin-bottom:10px;
}

/* ============ 自助三步 ============ */
.steps-band{background:var(--surface-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.steps-layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center}
.step-list{display:flex;flex-direction:column;gap:14px}
.step-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:#CBDACF}
.step-no{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-100);color:var(--brand-700);
  font-weight:700;font-size:15px;
}
.step-item h3{font-size:17px;margin-bottom:4px}
.step-item p{margin:0;font-size:14.5px;color:var(--ink-700);line-height:1.75}
.steps-visual{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-lg);border:1px solid var(--border);
}
.steps-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg)}
@media (max-width:991px){.steps-layout{grid-template-columns:1fr;gap:28px}.steps-visual{order:-1}}

/* ============ 帮助主区 ============ */
.help-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start}
.faq-group{margin-bottom:40px}
.faq-group:last-child{margin-bottom:0}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.group-head .gi{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);font-size:15px;
}
.group-head h2{font-size:22px}
.group-head .gcount{
  margin-left:auto;font-size:12.5px;color:var(--brand-700);
  background:var(--brand-100);border-radius:999px;padding:3px 12px;font-weight:600;white-space:nowrap;
}
.faq-item{border-top:1px solid var(--border)}
.faq-item:last-child{border-bottom:1px solid var(--border)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:flex-start;gap:12px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:17px 4px 17px 18px;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:15px;bottom:15px;width:4px;border-radius:4px;
  background:transparent;transition:background .2s ease-out;
}
.faq-q[aria-expanded="true"]::before{background:var(--lime-400)}
.faq-text{flex:1;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.55}
.faq-icon{
  position:relative;flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--border);margin-top:2px;
  transition:background .2s ease-out,border-color .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .2s ease-out;
}
.faq-icon::before{left:6px;right:6px;top:50%;height:2px;margin-top:-1px}
.faq-icon::after{top:6px;bottom:6px;left:50%;width:2px;margin-left:-1px}
.faq-q[aria-expanded="true"] .faq-icon{background:var(--brand-100);border-color:var(--brand-500)}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0)}
.faq-a{
  padding:0 4px 20px 18px;font-size:15px;line-height:1.85;color:var(--ink-700);
  max-width:760px;
}
.faq-a .tip{
  display:flex;gap:8px;align-items:flex-start;
  margin-top:12px;padding:10px 14px;border-radius:10px;
  background:var(--surface-alt);font-size:13px;color:var(--brand-700);line-height:1.7;
}
.faq-a .tip i{margin-top:4px;color:var(--brand-500)}

/* ============ 侧栏 ============ */
.side-col{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-md);
}
.side-card.accent{background:var(--brand-100);border-color:#CFE3D8}
.side-card h3{font-size:18px;margin-bottom:8px}
.side-card p{font-size:14.5px;color:var(--ink-700);line-height:1.8;margin-bottom:16px}
.side-card .btn-line,.side-card .btn-main{width:100%}
.side-list{display:flex;flex-direction:column;gap:12px;margin-top:4px}
.side-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-700);line-height:1.7}
.side-list i{color:var(--brand-500);margin-top:5px;font-size:12px}
.side-contact{
  margin-top:16px;padding-top:16px;border-top:1px dashed #C7D8CE;
  font-size:14px;color:var(--ink-700);line-height:1.8;
}
.side-contact strong{display:block;font-size:19px;color:var(--brand-700);font-variant-numeric:tabular-nums}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--ink-700);
  transition:background .18s ease-out,color .18s ease-out;
}
.side-links a:hover{background:var(--brand-100);color:var(--brand-700)}
.side-links a i{font-size:11px;color:var(--brand-500)}
@media (max-width:1199px){
  .help-layout{grid-template-columns:1fr;gap:32px}
  .side-col{position:static}
}

/* ============ 支持数据条 ============ */
.support-band{background:var(--brand-900);color:#DCEBE4}
.support-band .section-head h2{color:#fff}
.support-band .section-head h2::after{background:var(--lime-400)}
.support-band .section-head p{color:#A9C9BC}
.support-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.support-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(200,241,105,.16);
  border-radius:var(--r-card);padding:22px;
  transition:background .2s ease-out,transform .2s ease-out;
}
.support-item:hover{background:rgba(255,255,255,.09);transform:translateY(-4px)}
.support-item .num{font-size:40px;font-weight:700;color:var(--lime-400);line-height:1.1;font-variant-numeric:tabular-nums}
.support-item .lbl{font-size:14px;color:#DCEBE4;margin-top:6px}
.support-item .desc{font-size:13.5px;color:#93B8AA;margin-top:4px;line-height:1.7}
@media (max-width:991px){.support-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575px){.support-grid{grid-template-columns:1fr}}

/* ============ CTA ============ */
.cta-band{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  box-shadow:var(--sh-lg);padding:40px;display:flex;align-items:center;gap:32px;justify-content:space-between;
}
.cta-band h2{font-size:26px;margin-bottom:8px}
.cta-band p{margin:0;color:var(--ink-700);font-size:15.5px}
.cta-actions{display:flex;gap:12px;flex:0 0 auto}
@media (max-width:991px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px}
  .cta-actions{width:100%;flex-wrap:wrap}
}
@media (max-width:575px){
  .cta-actions{flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#C8DCD3;padding:64px 0 0;margin-top:88px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.fbrand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:12px}
.site-footer p{font-size:14px;color:#9FC4B6;line-height:1.8;margin:0 0 8px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px}
.site-footer ul{display:flex;flex-direction:column;gap:9px}
.site-footer ul a{color:#B6D2C7;font-size:14px}
.site-footer ul a:hover{color:var(--lime-400)}
.foot-phone{font-size:19px;font-weight:700;color:var(--lime-400);font-variant-numeric:tabular-nums;margin-top:12px}
.qr{
  width:120px;height:120px;border-radius:12px;
  border:1px dashed rgba(200,241,105,.45);color:#9FC4B6;
  display:grid;place-items:center;text-align:center;
  font-size:12.5px;line-height:1.6;padding:10px;
}
.foot-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;
  font-size:13px;color:#8FB3A5;flex-wrap:wrap;
}
@media (max-width:991px){.foot-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr}.site-footer{padding-top:48px}}

@media (max-width:991px){.section{padding:64px 0}.section.tight{padding:44px 0}}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:48px 0}
  .wrap{padding:0 16px}
  .help-hero h1{font-size:26px}
  .faq-q{padding:16px 2px 16px 16px}
  .faq-text{font-size:16px}
  .faq-a{padding-left:16px}
  .cta-band h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}