/* roulang page: index */
:root{
  --c-brand:#12513C;
  --c-brand-2:#1E7A5A;
  --c-brand-soft:#EAF3EE;
  --c-accent:#F2622B;
  --c-accent-2:#FFB020;
  --c-data:#8FCB3A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#101A16;
  --c-ink-2:#4C5C55;
  --c-line:#DFE6E0;
  --c-ok:#2F7D57;
  --c-warn:#B4761A;
  --c-err:#B4453A;
  --r-card:14px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(16,26,22,.06);
  --shadow-2:0 10px 26px -14px rgba(16,26,22,.28);
  --ease:.22s cubic-bezier(.2,.7,.3,1);
  --bs-primary:#12513C;
  --bs-body-color:#101A16;
  --bs-border-color:#DFE6E0;
  --bs-link-color:#12513C;
  --bs-link-hover-color:#1E7A5A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-brand-2)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.section-line{border-top:1px solid var(--c-line)}
.section-soft{background:var(--c-brand-soft)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-brand-2);text-transform:uppercase;margin-bottom:14px}
.h2{font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.01em}
.h3{font-size:20px;line-height:1.5;font-weight:600}
.lead{font-size:16px;color:var(--c-ink-2);line-height:1.9;max-width:800px}
.short-rule{width:56px;height:6px;background:var(--c-brand);border-radius:2px;margin-bottom:22px}
.topbar{background:var(--c-brand);color:#DCEBE3;font-size:13px;line-height:38px;min-height:38px}
.topbar a{color:#DCEBE3}
.topbar a:hover{color:#fff}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-left .sep{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);display:inline-block}
.topbar-right{display:flex;align-items:center;gap:20px;white-space:nowrap}
.topbar-right .hl{color:var(--c-accent-2);font-weight:600}
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow var(--ease)}
.site-header.is-stuck{box-shadow:var(--shadow-1)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:38px;height:38px;border-radius:10px;background:var(--c-brand);display:grid;place-items:center;flex:0 0 auto}
.brand-mark span{display:block;width:16px;height:16px;border:2.5px solid #fff;border-radius:50%;border-bottom-color:transparent;border-right-color:var(--c-accent-2);transform:rotate(-35deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--c-ink-2);letter-spacing:.14em}
.nav-main{display:flex;align-items:center;gap:6px}
.nav-item-link{position:relative;display:inline-block;padding:8px 14px;font-size:15px;font-weight:500;color:var(--c-ink);border-radius:8px}
.nav-item-link:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.nav-item-link.active{color:var(--c-brand);font-weight:600}
.nav-item-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-19px;height:3px;background:var(--c-brand);border-radius:2px}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);padding:13px 26px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all var(--ease);text-align:center;line-height:1.3}
.btn-primary{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-primary:hover{background:#D9541F;border-color:#D9541F;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--c-brand);color:var(--c-brand)}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn:disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none}
.link-arrow{color:var(--c-brand);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.link-arrow i{transition:transform var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
.badge-soft{display:inline-block;background:var(--c-brand-soft);color:var(--c-brand);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600;line-height:1.6}
.badge-accent{display:inline-block;background:#FDECE4;color:#B4441A;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:600;line-height:1.6}
.hero{padding:72px 0 84px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:7px 16px;font-size:13px;font-weight:600;color:var(--c-brand);box-shadow:var(--shadow-1);margin-bottom:20px}
.hero-badge i{color:var(--c-accent)}
.hero h1{font-size:44px;line-height:1.28;font-weight:800;letter-spacing:-.01em;margin-bottom:18px}
.hero h1 .mark{color:var(--c-brand)}
.hero h1 .mark-a{color:var(--c-accent)}
.hero-sub{font-size:21px;color:var(--c-ink-2);line-height:1.65;max-width:620px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.trust-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;border-top:1px solid var(--c-line);padding-top:22px}
.trust-item{display:flex;flex-direction:column;gap:2px}
.trust-item .num{font-size:22px;font-weight:800;color:var(--c-brand);font-variant-numeric:tabular-nums;line-height:1.3}
.trust-item .num small{font-size:13px;font-weight:600;color:var(--c-ink-2);margin-left:3px}
.trust-item .lbl{font-size:13px;color:var(--c-ink-2)}
.hero-figure{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--c-line);background:var(--c-brand-soft)}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.data-chip{position:absolute;right:16px;bottom:16px;background:rgba(234,243,238,.92);border:1px solid rgba(18,81,60,.16);border-radius:12px;padding:12px 16px;backdrop-filter:blur(4px);max-width:200px}
.data-chip .k{font-size:12px;color:var(--c-brand-2);font-weight:600}
.data-chip .v{font-size:19px;font-weight:800;color:var(--c-brand);font-variant-numeric:tabular-nums;line-height:1.4}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.metric-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 26px;position:relative;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)}
.metric-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.metric-card::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:0 4px 4px 0;background:var(--c-brand)}
.metric-card.is-accent::before{background:var(--c-accent)}
.metric-card .tag{font-size:12px;font-weight:600;color:var(--c-brand-2);letter-spacing:.04em}
.metric-card .val{font-size:40px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;line-height:1.25;margin:8px 0 2px}
.metric-card .val small{font-size:14px;font-weight:600;color:var(--c-ink-2);margin-left:4px}
.metric-card .desc{font-size:14px;color:var(--c-ink-2);margin-bottom:14px}
.trend{height:6px;border-radius:999px;background:#EDF1ED;overflow:hidden;width:100%}
.trend i{display:block;height:100%;border-radius:999px;background:var(--c-accent)}
.trend.is-data i{background:var(--c-data)}
.matrix-main,.svc-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)}
.matrix-main:hover,.svc-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.matrix-main{overflow:hidden;height:100%;display:flex;flex-direction:column}
.matrix-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.matrix-main .body{padding:24px 26px 26px}
.svc-card{padding:22px 24px;display:flex;gap:16px;height:100%}
.svc-icon{flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--c-brand-soft);display:grid;place-items:center;color:var(--c-brand);font-size:18px}
.svc-list{margin-top:10px}
.svc-list li{position:relative;padding-left:16px;font-size:14px;color:var(--c-ink-2);line-height:1.8}
.svc-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:var(--c-brand-2)}
.compare-wrap{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface)}
.compare-col{padding:32px 30px}
.compare-col.problem{background:var(--c-bg)}
.compare-col.result{background:var(--c-brand-soft)}
.compare-col h3{font-size:19px;margin-bottom:6px}
.compare-col .cap{font-size:14px;color:var(--c-ink-2);margin-bottom:20px}
.cmp-item{display:flex;flex-direction:column;gap:8px;padding:14px 0;border-bottom:1px dashed var(--c-line)}
.cmp-item:last-child{border-bottom:0}
.cmp-item .txt{display:flex;align-items:center;gap:10px;font-size:15px}
.cmp-item .txt i{color:var(--c-ink-2);font-size:14px}
.compare-col.result .cmp-item .txt i{color:var(--c-brand)}
.cmp-bar{height:8px;border-radius:999px;background:#E6ECE7;overflow:hidden}
.cmp-bar i{display:block;height:100%;border-radius:999px;background:var(--c-brand-2);opacity:.55}
.compare-col.result .cmp-bar i{background:var(--c-accent);opacity:1}
.compare-split{background:var(--c-line)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px}
.news-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease)}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.news-thumb{display:block;overflow:hidden;background:var(--c-brand-soft)}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-title{font-size:17px;line-height:1.55;font-weight:600;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a{color:var(--c-ink)}
.news-title a:hover{color:var(--c-brand)}
.news-sum{font-size:14px;color:var(--c-ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-2);border-top:1px solid var(--c-line);padding-top:14px}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--c-line)}
.empty-state{text-align:center;padding:60px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface)}
.empty-state .ico{width:56px;height:56px;border-radius:50%;background:var(--c-brand-soft);color:var(--c-brand);display:grid;place-items:center;margin:0 auto 16px;font-size:22px}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px}
.faq-grid{display:grid;grid-template-columns:8fr 4fr;gap:44px;align-items:start}
.faq-aside{background:var(--c-brand);color:#DCEBE3;border-radius:var(--r-card);padding:30px 28px}
.faq-aside h3{color:#fff;font-size:20px;margin-bottom:12px}
.faq-aside p{font-size:14px;color:#C6DBD0;line-height:1.85}
.faq-aside .mini{margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.18);font-size:14px;color:#E7F1EC}
.faq-aside .mini b{color:var(--c-accent-2)}
.accordion-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card)!important;margin-bottom:12px;overflow:hidden}
.accordion-button{background:var(--c-surface);color:var(--c-ink);font-size:16px;font-weight:600;padding:18px 58px 18px 22px;box-shadow:none!important;border-radius:var(--r-card)!important}
.accordion-button:not(.collapsed){color:var(--c-brand);background:var(--c-surface)}
.accordion-button::after{display:none}
.accordion-button .plus{position:absolute;right:20px;top:50%;width:16px;height:16px;transform:translateY(-50%);transition:transform var(--ease)}
.accordion-button .plus::before,.accordion-button .plus::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px}
.accordion-button .plus::before{left:0;top:7px;width:16px;height:2px}
.accordion-button .plus::after{top:0;left:7px;width:2px;height:16px}
.accordion-button:not(.collapsed) .plus{transform:translateY(-50%) rotate(45deg)}
.accordion-body{padding:0 22px 20px;font-size:15px;color:var(--c-ink-2);line-height:1.85}
.cta-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-points li{display:flex;gap:12px;font-size:15px;color:var(--c-ink-2);line-height:1.8;margin-bottom:14px}
.cta-points i{color:var(--c-accent);margin-top:5px}
.form-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow-1)}
.form-label{font-size:14px;font-weight:500;color:var(--c-ink);margin-bottom:6px}
.form-control,.form-select{height:48px;border:1px solid var(--c-line);border-radius:var(--r-btn);font-size:15px;padding:0 14px;color:var(--c-ink);background:#fff}
textarea.form-control{height:auto;min-height:118px;padding:12px 14px;line-height:1.7}
.form-control:focus,.form-select:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(18,81,60,.12)}
.form-check-input{width:18px;height:18px;border:1px solid var(--c-line);margin-top:4px}
.form-check-input:checked{background-color:var(--c-brand);border-color:var(--c-brand)}
.form-check-label{font-size:13px;color:var(--c-ink-2)}
.form-note{font-size:13px;color:var(--c-ink-2);margin-top:14px;line-height:1.7}
.msg-strip{border-radius:var(--r-btn);border-left:3px solid var(--c-ok);background:#EEF6F1;color:#27543D;font-size:14px;padding:12px 16px;margin-bottom:18px}
.footer{background:var(--c-brand);color:#C6DBD0;padding:72px 0 0;margin-top:0}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer p{font-size:14px;line-height:1.9;color:#B9D0C5}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px}
.footer-list li{margin-bottom:10px}
.footer-list a{color:#C6DBD0;font-size:14px;position:relative;transition:color var(--ease)}
.footer-list a:hover{color:var(--c-accent-2);text-decoration:underline;text-underline-offset:4px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:#0C3D2C}
.footer-brand .brand-name{color:#fff}
.footer-contact li{font-size:14px;margin-bottom:10px;color:#C6DBD0;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-accent-2);margin-top:5px}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.16);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#A9C4B7}
.backtop{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:#fff;border:1.5px solid var(--c-brand);color:var(--c-brand);display:grid;place-items:center;box-shadow:var(--shadow-2);opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease);z-index:1040}
.backtop.show{opacity:1;pointer-events:auto}
.backtop:hover{transform:translateY(-2px);background:var(--c-brand-soft)}
.offcanvas{max-width:82vw}
.offcanvas-header{border-bottom:1px solid var(--c-line)}
.offcanvas-body .nav-item-link{display:block;padding:14px 4px;border-bottom:1px solid var(--c-line);border-radius:0;font-size:16px}
.offcanvas-body .nav-item-link.active::after{display:none}
.offcanvas-body .nav-item-link.active{border-left:3px solid var(--c-brand);padding-left:12px}
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:38px}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .hero{padding:52px 0 64px}
  .hero h1{font-size:32px}
  .hero-sub{font-size:19px}
  .h2{font-size:26px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .compare-wrap{grid-template-columns:1fr}
  .compare-split{height:1px;width:100%}
  .topbar-right a.opt{display:none}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero h1{font-size:28px}
  .hero-sub{font-size:18px}
  .hero-actions .btn{width:100%}
  .trust-bar{grid-template-columns:repeat(2,1fr);gap:16px}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .metric-card{padding:18px 18px 18px 22px}
  .metric-card .val{font-size:30px}
  .news-head{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .backtop{right:14px;bottom:18px}
  .compare-col{padding:24px 20px}
  .topbar-inner{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-brand:#12513C;
  --c-brand-2:#1E7A5A;
  --c-brand-soft:#EAF3EE;
  --c-accent:#F2622B;
  --c-accent-2:#FFB020;
  --c-data:#8FCB3A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#101A16;
  --c-ink-2:#4C5C55;
  --c-line:#DFE6E0;
  --ok:#2F7D55;
  --ok-bg:#E8F4EC;
  --warn:#B4721A;
  --warn-bg:#FBF1E1;
  --err:#B23B2E;
  --err-bg:#FBEAE7;
  --shadow-1:0 1px 2px rgba(16,26,22,.06);
  --shadow-2:0 10px 26px -14px rgba(16,26,22,.28);
  --r-card:14px;
  --r-btn:10px;
  --ease:.22s cubic-bezier(.2,.7,.3,1);
  --bs-body-color:#101A16;
  --bs-body-bg:#F6F8F5;
  --bs-border-color:#DFE6E0;
  --bs-primary:#12513C;
  --bs-link-color:#1E7A5A;
  --bs-link-hover-color:#F2622B;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-brand-2);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-accent)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (max-width:991px){.container{padding-left:20px;padding-right:20px}}
@media (max-width:767px){.container{padding-left:16px;padding-right:16px}}

/* 顶部信息条 */
.topbar{background:var(--c-brand);color:#CFE3D8;font-size:13px;line-height:38px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:#5C8C77;flex:0 0 auto}
.topbar-left .tip{color:#9FBCAD;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.topbar-right a{color:#CFE3D8}
.topbar-right a:hover{color:#fff}
.topbar-right .hl{color:var(--c-accent-2);font-weight:600}
@media (max-width:767px){
  .topbar{line-height:34px;font-size:12px}
  .topbar-left .tip,.topbar-right a:not(.hl-link){display:none}
}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--ease),height var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  position:relative;width:38px;height:38px;flex:0 0 auto;
  background:var(--c-brand);border-radius:11px;
}
.brand-mark::before{
  content:"";position:absolute;inset:8px;border:2px solid #8FCB3A;border-radius:50% 50% 50% 0;
  transform:rotate(-45deg);
}
.brand-mark span{position:absolute;right:7px;bottom:7px;width:9px;height:9px;border-radius:3px;background:var(--c-accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--c-brand)}
.brand-sub{font-size:10.5px;letter-spacing:.14em;color:var(--c-ink-2);font-weight:600}
.nav-main{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item-link{
  position:relative;padding:8px 14px;font-size:15.5px;color:var(--c-ink);border-radius:8px;
  transition:color var(--ease),background var(--ease);
}
.nav-item-link:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.nav-item-link.active{color:var(--c-brand);font-weight:700}
.nav-item-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:2px;background:var(--c-brand);
}
.header-actions{display:flex;align-items:center;gap:12px}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-accent);color:#fff;border:1.5px solid var(--c-accent);
  padding:12px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  box-shadow:var(--shadow-1);transition:transform var(--ease),background var(--ease),box-shadow var(--ease);
  cursor:pointer;
}
.btn-primary:hover{background:#D94F1C;border-color:#D94F1C;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);background:#C64616;border-color:#C64616}
.btn-primary[disabled],.btn-primary.disabled{opacity:.55;box-shadow:none;transform:none;pointer-events:none}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--c-brand);border:1.5px solid var(--c-brand);
  padding:11px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);background:#DDEBE3}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-brand)}
.btn-link-arrow i{transition:transform var(--ease)}
.btn-link-arrow:hover i{transform:translateX(4px)}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-brand);border-radius:2px}
@media (max-width:991px){.header-inner{height:60px}}
.mobile-nav{--bs-offcanvas-width:300px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px}
.mobile-nav .offcanvas-body{padding:16px 20px 28px;display:flex;flex-direction:column;gap:6px;background:var(--c-bg)}
.m-nav-link{padding:13px 14px;border-radius:10px;color:var(--c-ink);font-size:16px;font-weight:600;background:#fff;border:1px solid var(--c-line)}
.m-nav-link:hover,.m-nav-link.active{background:var(--c-brand-soft);color:var(--c-brand);border-color:#C9DED3}
.mobile-nav .btn-close{--bs-btn-close-focus-shadow:0 0 0 3px var(--c-brand-soft)}

/* 面包屑 */
.crumb-bar{background:var(--c-bg);border-bottom:1px solid var(--c-line)}
.crumb{display:flex;align-items:center;gap:10px;padding:16px 0;font-size:13px;color:var(--c-ink-2);overflow:hidden;white-space:nowrap}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-brand)}
.crumb .sep{color:#B9C6BE}
.crumb .cur{color:var(--c-brand);font-weight:600;overflow:hidden;text-overflow:ellipsis}

/* 文章头 */
.article-head{background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:44px 0 34px}
.article-wrap{max-width:820px}
.article-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-brand-soft);color:var(--c-brand);
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
}
.article-head h1{
  font-size:36px;line-height:1.35;font-weight:800;letter-spacing:-.01em;
  margin:18px 0 18px;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13.5px;color:var(--c-ink-2)}
.article-meta i{color:var(--c-brand-2);margin-right:6px}
.article-meta .vline{width:1px;height:13px;background:var(--c-line)}
@media (max-width:767px){
  .article-head{padding:30px 0 24px}
  .article-head h1{font-size:27px}
}

/* 主体布局 */
.main-area{padding:52px 0 84px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start}
@media (max-width:1199px){.layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px}}
@media (max-width:991px){.layout{grid-template-columns:minmax(0,1fr)}}

.panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:34px 36px}
@media (max-width:767px){.panel{padding:24px 20px}}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:var(--c-ink)}
.article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;margin:2em 0 .6em;
  padding-left:14px;border-left:4px solid var(--c-brand);
}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;margin:1.6em 0 .5em}
.article-body h4{font-size:17.5px;font-weight:700;margin:1.4em 0 .4em}
.article-body p{margin:0 0 1.2em}
.article-body > h2:first-child,.article-body > h3:first-child{margin-top:0}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.3em}
.article-body ul > li{position:relative;padding-left:22px;margin-bottom:.55em}
.article-body ul > li::before{
  content:"";position:absolute;left:2px;top:.75em;width:8px;height:8px;border-radius:2px;background:var(--c-brand);
}
.article-body ol{padding-left:1.5em;margin:0 0 1.3em}
.article-body ol > li{margin-bottom:.5em;padding-left:.2em}
.article-body ol > li::marker{color:var(--c-accent);font-weight:700}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--c-brand-soft);
  border-left:3px solid var(--c-brand);border-radius:0 10px 10px 0;font-size:16px;color:#243A31;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-card);margin:1.5em auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-ink-2);margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.5em 0}
.article-body th{background:var(--c-brand-soft);color:var(--c-brand);font-weight:700}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left}
.article-body tbody tr:nth-child(even){background:#FAFCFA}
.article-body strong{font-weight:700;color:#0B1712}
.article-body a{border-bottom:1px solid rgba(30,122,90,.4)}
.article-body a:hover{border-bottom-color:var(--c-accent)}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
@media (max-width:767px){
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
}

/* 标签与上下篇 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag-row .tag-label{font-size:13.5px;color:var(--c-ink-2);font-weight:600}
.tag{
  display:inline-flex;align-items:center;background:var(--c-brand-soft);color:var(--c-brand);
  border-radius:999px;padding:5px 13px;font-size:13px;font-weight:600;transition:background var(--ease),color var(--ease);
}
.tag:hover{background:var(--c-brand);color:#fff}
.nav-post{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}
@media (max-width:767px){.nav-post{grid-template-columns:1fr}}
.post-card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow-1);transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.post-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#C9DED3;color:inherit}
.post-card .k{font-size:12.5px;color:var(--c-ink-2);letter-spacing:.04em}
.post-card .t{display:block;margin-top:6px;font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.6}
.post-card .t i{margin-right:8px;color:var(--c-brand-2)}
.post-card.next{text-align:right}
.post-card.next .t i{margin-left:8px;margin-right:0}

/* 相关推荐 */
.section-title{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 24px}
.section-title h2{font-size:24px;font-weight:700;margin:0;letter-spacing:-.01em}
.section-title .bar{width:36px;height:5px;border-radius:3px;background:var(--c-brand);display:inline-block;margin-right:12px;vertical-align:middle}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.rel-grid{grid-template-columns:1fr}}
.card-b{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:box-shadow var(--ease),transform var(--ease);height:100%}
.card-b:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card-b .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-brand-soft)}
.card-b .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.card-b:hover .thumb img{transform:scale(1.03)}
.card-b .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-b .badge-soft{align-self:flex-start;background:var(--c-brand-soft);color:var(--c-brand);border-radius:999px;padding:4px 11px;font-size:12px;font-weight:600}
.card-b h3{font-size:17px;line-height:1.55;font-weight:700;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-b h3 a{color:var(--c-ink)}
.card-b h3 a:hover{color:var(--c-brand)}
.card-b p{margin:0;font-size:14px;line-height:1.75;color:var(--c-ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-b .foot{margin-top:auto;padding-top:12px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-ink-2);border-top:1px solid var(--c-line)}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:24px}
.side-card h3{font-size:16px;font-weight:700;margin:0 0 16px;padding-left:11px;border-left:3px solid var(--c-brand)}
.source-box{display:flex;gap:14px;align-items:center}
.source-avatar{
  width:52px;height:52px;flex:0 0 auto;border-radius:12px;background:var(--c-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:17px;
}
.source-box .name{font-weight:700;font-size:15.5px}
.source-box .desc{font-size:13px;color:var(--c-ink-2);line-height:1.6}
.hot-list{list-style:none;margin:0;padding:0;counter-reset:hot}
.hot-list li{counter-increment:hot;display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line)}
.hot-list li:last-child{border-bottom:none;padding-bottom:0}
.hot-list li::before{
  content:counter(hot);flex:0 0 auto;width:22px;height:22px;border-radius:6px;
  background:var(--c-brand-soft);color:var(--c-brand);font-size:12.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.hot-list li:nth-child(1)::before{background:var(--c-accent);color:#fff}
.hot-list a{font-size:14.5px;line-height:1.7;color:var(--c-ink)}
.hot-list a:hover{color:var(--c-brand)}
.cta-side{background:var(--c-brand);border-color:var(--c-brand);color:#DCEBE4}
.cta-side h3{color:#fff;border-left-color:var(--c-accent)}
.cta-side p{font-size:14px;line-height:1.8;color:#B9D3C7;margin:0 0 18px}
.cta-side .btn-primary{width:100%;justify-content:center}

/* 空态 */
.empty-state{text-align:center;padding:56px 24px}
.empty-state .ico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:16px;background:var(--c-brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--c-brand);font-size:26px;
}
.empty-state h2{font-size:22px;font-weight:700;margin:0 0 10px}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin:0 0 22px}

/* FAQ */
.faq-wrap{margin-top:64px}
.faq-cols{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
@media (max-width:991px){.faq-cols{grid-template-columns:minmax(0,1fr)}}
.accordion-item{border:1px solid var(--c-line);border-radius:var(--r-card);background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1)}
.accordion-button{
  background:#fff;color:var(--c-ink);font-size:16.5px;font-weight:600;padding:20px 22px;
  box-shadow:none!important;border-radius:var(--r-card)!important;
}
.accordion-button:not(.collapsed){color:var(--c-brand);background:var(--c-brand-soft)}
.accordion-button::after{display:none}
.accordion-button .plus{
  margin-left:auto;width:20px;height:20px;position:relative;flex:0 0 auto;transition:transform var(--ease);
}
.accordion-button .plus::before,.accordion-button .plus::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
}
.accordion-button .plus::before{left:9px;top:1px;width:2px;height:18px}
.accordion-button .plus::after{top:9px;left:1px;height:2px;width:18px}
.accordion-button:not(.collapsed) .plus{transform:rotate(45deg)}
.accordion-body{padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.faq-note{background:var(--c-brand-soft);border:1px solid #D4E6DC;border-radius:var(--r-card);padding:24px}
.faq-note h3{font-size:17px;font-weight:700;margin:0 0 12px;color:var(--c-brand)}
.faq-note p{font-size:14px;line-height:1.8;color:#33473F;margin:0 0 14px}

/* 底部 CTA */
.cta-strip{background:var(--c-brand-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:52px 0;margin-top:72px}
.cta-strip .inner{display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-strip h2{font-size:24px;font-weight:700;margin:0 0 8px}
.cta-strip p{margin:0;color:var(--c-ink-2);font-size:15px}
.cta-strip .acts{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:767px){
  .cta-strip{padding:40px 0;margin-top:52px}
  .cta-strip .acts{width:100%}
  .cta-strip .acts .btn-primary,.cta-strip .acts .btn-ghost{width:100%;justify-content:center}
}

/* 页脚 */
.footer{background:var(--c-brand);color:#C6DCD1;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:#0C3A2B}
.footer-brand .brand-name{color:#fff;font-size:17px;font-weight:800;display:block}
.footer-brand .brand-sub{font-size:10.5px;letter-spacing:.14em;font-weight:600}
.footer p{font-size:14px;line-height:1.85;color:#A9C5B8;margin:0}
.footer h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
.footer-list{list-style:none;margin:0;padding:0}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:#C6DCD1;transition:color var(--ease),padding-left var(--ease)}
.footer-list a:hover{color:var(--c-accent-2);padding-left:4px}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;margin-bottom:12px;color:#C6DCD1}
.footer-contact i{color:var(--c-accent-2);margin-top:5px}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#9FBCAD;
}
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1.5px solid var(--c-brand);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;z-index:1040;
  box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease),transform var(--ease);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{transform:translateY(-2px);background:var(--c-brand-soft)}
@media (max-width:575px){.to-top{right:16px;bottom:16px;width:42px;height:42px}}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --c-brand:#12513C;
  --c-brand-2:#1E7A5A;
  --c-brand-soft:#EAF3EE;
  --c-accent:#F2622B;
  --c-accent-dark:#D9four;
  --c-accent-hover:#D9501C;
  --c-accent-2:#FFB020;
  --c-data:#8FCB3A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#101A16;
  --c-ink-2:#4C5C55;
  --c-line:#DFE6E0;
  --c-ok:#2E7D5B;
  --c-warn:#B4761C;
  --c-err:#B0413A;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(16,26,22,.06);
  --shadow-2:0 10px 26px -14px rgba(16,26,22,.28);
  --t:.22s cubic-bezier(.2,.7,.3,1);
  --bs-body-color:#101A16;
  --bs-body-bg:#F6F8F5;
  --bs-border-color:#DFE6E0;
  --bs-primary:#12513C;
  --bs-link-color:#12513C;
  --bs-link-hover-color:#1E7A5A;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-brand);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);}
a:hover{color:var(--c-brand-2);}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:800;letter-spacing:-.01em;}
h1{font-size:clamp(28px,3.6vw,44px);line-height:1.28;font-weight:800;}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;font-weight:700;}
h3{font-size:clamp(18px,1.7vw,21px);line-height:1.45;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--soft{background:var(--c-brand-soft);}
.section--divide{border-top:1px solid var(--c-line);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-brand-2);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:3px;background:var(--c-accent);display:inline-block;border-radius:2px;}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:44px;}
.sec-head p{color:var(--c-ink-2);font-size:15.5px;max-width:640px;margin:12px 0 0;}
.sec-head .sec-side{font-size:14px;color:var(--c-ink-2);white-space:nowrap;}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-brand);color:#DCEAE2;font-size:13px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;}
.topbar-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:#7FA793;display:inline-block;}
.topbar-right{display:flex;align-items:center;gap:22px;}
.topbar-right a{color:#DCEAE2;font-size:13px;}
.topbar-right a:hover{color:#fff;}
.topbar-right .hot{color:var(--c-accent-2);font-weight:600;}

/* ============ 主导航 ============ */
.navwrap{
  position:sticky;top:0;z-index:1035;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow var(--t);
}
.navwrap.scrolled{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;}
.brand{display:inline-flex;align-items:center;gap:11px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;position:relative;
}
.brand-mark::before{
  content:"";position:absolute;width:16px;height:16px;border:2px solid #8FCB3A;
  border-radius:50% 50% 50% 0;transform:rotate(-45deg);
}
.brand-mark span{width:6px;height:6px;border-radius:50%;background:var(--c-accent);position:relative;z-index:2;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.01em;}
.brand-sub{font-size:10.5px;letter-spacing:.14em;color:var(--c-ink-2);font-weight:600;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-item-link{
  position:relative;padding:10px 14px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-radius:8px;
}
.nav-item-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-item-link:hover{color:var(--c-brand);background:var(--c-brand-soft);}
.nav-item-link:hover::after{transform:scaleX(1);}
.nav-item-link.active{color:var(--c-brand);}
.nav-item-link.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}

/* 按钮体系 */
.btn-main,.btn-ghost,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;transition:all var(--t);cursor:pointer;}
.btn-main{
  background:var(--c-accent);color:#fff;border:1px solid var(--c-accent);
  border-radius:var(--r-btn);padding:13px 26px;font-size:15px;box-shadow:var(--shadow-1);
}
.btn-main:hover{background:var(--c-accent-hover);border-color:var(--c-accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-main.sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  background:#fff;color:var(--c-brand);border:1.5px solid var(--c-brand);
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;
}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);}
.btn-ghost.sm{padding:8px 16px;font-size:14px;}
.btn-text{color:var(--c-brand);font-size:15px;background:none;border:none;padding:0;}
.btn-text i{transition:transform var(--t);font-size:13px;}
.btn-text:hover i{transform:translateX(4px);}
.btn-main:disabled,.btn-ghost:disabled{opacity:.5;box-shadow:none;cursor:not-allowed;transform:none;}

.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-brand);font-size:17px;
}
.offcanvas.offcanvas-end{width:308px;}
.offcanvas-body .oc-link{
  display:block;padding:14px 4px;font-size:16px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.offcanvas-body .oc-link.active{color:var(--c-brand);}
.offcanvas-body .oc-link:hover{color:var(--c-brand-2);}
.oc-cta{margin-top:22px;}

/* ============ 面包屑 + 标题带 ============ */
.page-band{background:var(--c-brand-soft);border-bottom:1px solid var(--c-line);padding:44px 0 40px;}
.band-inner{display:flex;justify-content:space-between;align-items:flex-end;gap:36px;}
.breadcrumb-line{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-ink-2);margin-bottom:16px;flex-wrap:wrap;}
.breadcrumb-line .sep{width:1px;height:12px;background:#B9C9BF;display:inline-block;}
.breadcrumb-line .cur{color:var(--c-brand);font-weight:600;}
.page-band h1{max-width:760px;}
.band-desc{color:var(--c-ink-2);font-size:15.5px;max-width:720px;margin-top:14px;}
.band-tags{display:flex;flex-direction:column;align-items:flex-end;gap:10px;flex:0 0 auto;}
.tag-pill{
  display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--c-line);
  color:var(--c-brand);font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
}
.tag-pill.accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.tag-pill i{font-size:11px;}

/* ============ 首屏 7:5 ============ */
.intro-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.intro-text h2{margin-bottom:14px;}
.intro-text>p{color:var(--c-ink-2);font-size:16px;max-width:560px;}
.point-list{margin:26px 0 30px;}
.point-list li{display:flex;gap:14px;padding:13px 0;border-bottom:1px dashed var(--c-line);}
.point-list li:last-child{border-bottom:none;}
.point-list .pk{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--c-brand-soft);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;font-size:12px;margin-top:3px;
}
.point-list strong{display:block;font-weight:700;font-size:16px;margin-bottom:2px;}
.point-list span.txt{color:var(--c-ink-2);font-size:14.5px;}
.intro-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);}
.intro-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.intro-media:hover img{transform:scale(1.03);}
.media-tag{
  position:absolute;right:16px;bottom:16px;background:rgba(18,81,60,.86);color:#EAF3EE;
  font-size:13px;padding:8px 14px;border-radius:10px;backdrop-filter:blur(3px);
}
.media-tag b{color:var(--c-accent-2);font-variant-numeric:tabular-nums;}

/* ============ 目录清单 ============ */
.dir-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;}
.dir-item{
  display:flex;align-items:flex-start;gap:18px;padding:22px 16px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink);border-radius:10px;
}
.dir-item:hover{background:var(--c-brand-soft);color:var(--c-ink);}
.dir-num{
  font-size:26px;font-weight:800;color:var(--c-brand);font-variant-numeric:tabular-nums;
  line-height:1.2;flex:0 0 46px;letter-spacing:-.02em;opacity:.75;
}
.dir-body{flex:1 1 auto;min-width:0;}
.dir-title{display:block;font-size:17px;font-weight:700;margin-bottom:4px;}
.dir-desc{display:block;color:var(--c-ink-2);font-size:14.5px;line-height:1.75;}
.dir-arrow{flex:0 0 auto;color:var(--c-brand-2);font-size:13px;margin-top:8px;transition:transform var(--t);}
.dir-item:hover .dir-arrow{transform:translateX(4px);color:var(--c-accent);}

/* ============ 对照区 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.compare-col{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);}
.compare-col--alt{background:var(--c-brand-soft);border-color:#CFE1D6;}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.compare-col h3 i{color:var(--c-brand-2);font-size:15px;}
.compare-col .cc-sub{color:var(--c-ink-2);font-size:14.5px;margin-bottom:18px;}
.compare-col ul li{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-top:1px solid var(--c-line);font-size:15px;}
.compare-col ul li:first-child{border-top:none;}
.compare-col ul li i{color:var(--c-accent);font-size:11px;margin-top:8px;}
.compare-col--alt ul li i{color:var(--c-brand-2);}

/* ============ 步骤区 + 配图 ============ */
.steps-grid{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
.steps-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-2);}
.steps-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.steps-media:hover img{transform:scale(1.03);}
.step-row{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid rgba(18,81,60,.12);}
.step-row:last-child{border-bottom:none;}
.step-idx{
  flex:0 0 40px;height:40px;border-radius:12px;background:var(--c-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
}
.step-row.now .step-idx{background:var(--c-accent);}
.step-row h3{margin-bottom:4px;}
.step-row p{color:var(--c-ink-2);font-size:14.8px;margin:0;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:8fr 4fr;gap:48px;align-items:start;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item+.faq-item{margin-top:14px;}
.faq-q{
  width:100%;background:none;border:none;text-align:left;padding:20px 24px;font-size:16.5px;font-weight:600;
  color:var(--c-ink);display:flex;align-items:center;justify-content:space-between;gap:18px;line-height:1.6;
}
.faq-q:hover{color:var(--c-brand);}
.faq-q[aria-expanded="true"]{color:var(--c-brand);}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform var(--t);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-brand-2);border-radius:2px;}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);border-top:1px solid var(--c-line);padding-top:16px;margin:0 24px 0;padding-left:0;padding-right:0;}
.faq-aside{background:var(--c-brand);color:#DCEAE2;border-radius:var(--r-card);padding:30px 26px;box-shadow:var(--shadow-2);}
.faq-aside h3{color:#fff;margin-bottom:12px;font-size:19px;}
.faq-aside p{color:#B9D2C5;font-size:14.6px;}
.faq-aside .aside-line{height:1px;background:rgba(255,255,255,.15);margin:20px 0;}
.faq-aside ul li{display:flex;gap:10px;font-size:14.4px;color:#DCEAE2;padding:6px 0;}
.faq-aside ul li i{color:var(--c-data);font-size:12px;margin-top:7px;}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--c-brand-soft);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);padding:44px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner .cta-txt strong{display:block;font-size:20px;font-weight:700;margin-bottom:6px;}
.cta-inner .cta-txt span{color:var(--c-ink-2);font-size:15px;}

/* ============ 页脚 ============ */
.footer{background:var(--c-brand);color:#C6DAD0;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px;}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer .brand-mark{background:rgba(255,255,255,.1);}
.brand-name{color:#fff;font-size:17px;font-weight:800;display:block;}
.brand-sub{font-size:10.5px;letter-spacing:.14em;font-weight:600;display:block;}
.footer p{font-size:14px;line-height:1.8;color:#A9C4B7;max-width:330px;}
.footer-list li{margin-bottom:11px;}
.footer-list a{color:#C6DAD0;font-size:14px;}
.footer-list a:hover{color:var(--c-accent-2);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#C6DAD0;}
.footer-contact i{color:#8FCB3A;margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;display:flex;
  align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:#9FBCAD;flex-wrap:wrap;
}
.back-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1.5px solid var(--c-brand);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--t);box-shadow:var(--shadow-1);
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--c-brand);color:#fff;}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .section{padding:76px 0;}
  .intro-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .dir-grid{gap:0 36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-grid>div:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .topbar-right a:nth-child(2){display:none;}
  .band-inner{flex-direction:column;align-items:flex-start;gap:22px;}
  .band-tags{flex-direction:row;flex-wrap:wrap;align-items:center;}
  .intro-grid{grid-template-columns:1fr;}
  .intro-media{order:2;}
  .steps-grid{grid-template-columns:1fr;gap:36px;}
  .steps-media{order:2;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:16px;}
  .section{padding:54px 0;}
  .topbar-right a:first-child{display:none;}
  .dir-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn-main{width:100%;}
  .btn-main,.btn-ghost{width:100%;}
  .nav-actions .btn-main,.nav-actions .btn-ghost{width:auto;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .page-band{padding:32px 0 30px;}
  .dir-item{padding:18px 12px;}
  .dir-num{font-size:22px;flex-basis:38px;}
}
@media (max-width:520px){
  h1{font-size:27px;}
  .intro-grid{gap:28px;}
  .compare-col{padding:22px;}
  .faq-q{padding:17px 18px;font-size:15.5px;}
  .faq-a{margin:0 18px;padding-top:14px;padding-bottom:18px;}
  .back-top{right:14px;bottom:16px;width:42px;height:42px;}
}

/* roulang page: category2 */
:root{
  --c-brand:#12513C;
  --c-brand-2:#1E7A5A;
  --c-brand-soft:#EAF3EE;
  --c-accent:#F2622B;
  --c-accent-2:#FFB020;
  --c-data:#8FCB3A;
  --c-bg:#F6F8F5;
  --c-surface:#FFFFFF;
  --c-ink:#101A16;
  --c-ink-2:#4C5C55;
  --c-line:#DFE6E0;
  --c-warn:#B4562A;
  --c-ok:#2F7D57;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,26,22,.06);
  --shadow-2:0 10px 26px -14px rgba(16,26,22,.28);
  --ease:.22s cubic-bezier(.2,.7,.3,1);
  --bs-primary:#12513C;
  --bs-body-color:#101A16;
  --bs-body-bg:#F6F8F5;
  --bs-border-color:#DFE6E0;
  --bs-link-color:#12513C;
  --bs-link-hover-color:#1E7A5A;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-brand-2)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
h1{font-size:42px;font-weight:800;line-height:1.28}
h2{font-size:32px;font-weight:700;line-height:1.35;margin-top:2em;margin-bottom:.6em}
h3{font-size:21px;font-weight:600;line-height:1.45}
p{margin:0 0 1.2em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
@media(max-width:991px){.container{padding:0 20px}}
@media(max-width:575px){.container{padding:0 16px}}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--c-brand);color:#D8E8DF;font-size:13px;line-height:1}
.topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden}
.topbar-left .dot{width:4px;height:4px;border-radius:50%;background:#6FA891;display:inline-block}
.topbar-left .tip{color:#A9C6B8}
.topbar-right{display:flex;align-items:center;gap:22px;white-space:nowrap}
.topbar-right a{color:#D8E8DF}
.topbar-right a:hover{color:#fff}
.topbar-right .hl{color:var(--c-accent-2);font-weight:600}
@media(max-width:991px){
  .topbar-right a:not(.keep){display:none}
  .topbar-left .tip{display:none}
}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line)}
.site-header.scrolled{box-shadow:var(--shadow-1)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;position:relative;flex:none;
}
.brand-mark::before{
  content:"";width:16px;height:16px;border:2px solid #fff;border-radius:50% 50% 50% 2px;
  border-top-color:transparent;transform:rotate(-18deg);
}
.brand-mark span{
  position:absolute;right:6px;bottom:7px;width:6px;height:6px;border-radius:50%;background:var(--c-accent);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-brand)}
.brand-sub{font-size:10.5px;letter-spacing:.16em;color:var(--c-ink-2);font-weight:600}
.nav-main{align-items:center;gap:6px}
.nav-item-link{
  display:inline-block;padding:8px 14px;font-size:15px;font-weight:500;color:var(--c-ink);
  border-radius:8px;position:relative;
}
.nav-item-link:hover{color:var(--c-brand);background:var(--c-brand-soft)}
.nav-item-link.active{color:var(--c-brand);font-weight:700}
.nav-item-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:2px;background:var(--c-brand);
}
.nav-actions{align-items:center;gap:10px}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-brand);font-size:18px;
}
.nav-drawer{width:300px}
.drawer-head{padding:20px 22px;border-bottom:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between}
.drawer-body{padding:14px 12px}
.drawer-link{display:block;padding:13px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--c-ink)}
.drawer-link:hover{background:var(--c-brand-soft);color:var(--c-brand)}
.drawer-link.active{background:var(--c-brand-soft);color:var(--c-brand);font-weight:700}
.drawer-foot{padding:16px 22px 26px;border-top:1px solid var(--c-line)}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-accent);color:#fff;font-weight:700;font-size:15px;
  padding:13px 26px;border-radius:var(--radius-btn);border:1.5px solid var(--c-accent);
  transition:all var(--ease);cursor:pointer;
}
.btn-brand:hover{background:#DB521F;border-color:#DB521F;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-brand:active{transform:translateY(0);box-shadow:none}
.btn-brand:disabled,.btn-brand.disabled{opacity:.5;box-shadow:none;transform:none;cursor:not-allowed}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--c-brand);font-weight:700;font-size:15px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1.5px solid var(--c-brand);
  transition:all var(--ease);cursor:pointer;
}
.btn-ghost:hover{background:var(--c-brand-soft);color:var(--c-brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm-brand{padding:10px 20px;font-size:14px}
.btn-full{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:14.5px;color:var(--c-brand);
}
.link-arrow i{transition:transform var(--ease);font-size:12px}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 徽章 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-brand-soft);color:var(--c-brand);
  font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:999px;line-height:1.6;
}
.badge-accent{background:#FDECE4;color:var(--c-accent)}
.badge-data{background:#F0F7E2;color:#5E8C1F}
.badge-line{background:#fff;border:1px solid var(--c-line);color:var(--c-ink-2)}

/* ============ 分类标题带 ============ */
.page-hero{background:var(--c-brand-soft);border-bottom:1px solid var(--c-line);padding:34px 0 40px}
.crumbs{font-size:13px;color:var(--c-ink-2);display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:18px}
.crumbs .sep{width:1px;height:12px;background:#BFD2C7;display:inline-block}
.crumbs .current{color:var(--c-brand);font-weight:600}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:end}
.page-hero h1{max-width:760px}
.hero-lead{margin:16px 0 0;max-width:720px;color:var(--c-ink-2);font-size:17px;line-height:1.9}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end;max-width:300px}
.hero-tags .badge-soft{background:#fff;border:1px solid #CFE0D6}
@media(max-width:991px){
  .hero-grid{grid-template-columns:1fr;gap:22px;align-items:start}
  .hero-tags{justify-content:flex-start;max-width:none}
  .page-hero h1{font-size:30px}
}

/* 快讯指标条 */
.stat-strip{background:#fff;border-bottom:1px solid var(--c-line)}
.stat-strip .strip-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.strip-item{padding:20px 24px;border-right:1px solid var(--c-line)}
.strip-item:last-child{border-right:none}
.strip-num{font-size:30px;font-weight:800;color:var(--c-brand);font-variant-numeric:tabular-nums;line-height:1.2}
.strip-num small{font-size:13px;font-weight:600;color:var(--c-ink-2);margin-left:4px}
.strip-label{font-size:13.5px;color:var(--c-ink-2);margin-top:4px}
@media(max-width:767px){
  .stat-strip .strip-grid{grid-template-columns:1fr 1fr}
  .strip-item{border-bottom:1px solid var(--c-line);padding:16px 18px}
  .strip-item:nth-child(2n){border-right:none}
  .strip-item:nth-last-child(-n+2){border-bottom:none}
  .strip-num{font-size:24px}
}

/* ============ 通用板块 ============ */
.section{padding:92px 0}
.section-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{margin-top:0}
.section-head p{color:var(--c-ink-2);margin-bottom:0;font-size:16.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--c-brand-2);letter-spacing:.04em;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:6px;border-radius:2px;background:var(--c-accent)}
@media(max-width:991px){.section{padding:66px 0}.section-head{margin-bottom:32px}}
@media(max-width:575px){.section{padding:54px 0}h2{font-size:23px}}

/* ============ 步骤流时间轴 ============ */
.flow-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.timeline{position:relative}
.tl-item{display:grid;grid-template-columns:46px minmax(0,1fr);gap:20px;padding-bottom:34px;position:relative}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:22px;top:50px;bottom:-2px;width:2px;background:#CFE0D6;
}
.tl-item:last-child::before{display:none}
.tl-dot{
  width:46px;height:46px;border-radius:50%;background:#fff;border:2px solid var(--c-brand);
  color:var(--c-brand);font-weight:800;font-size:17px;display:flex;align-items:center;justify-content:center;
  position:relative;z-index:1;font-variant-numeric:tabular-nums;
}
.tl-item.is-current .tl-dot{background:var(--c-accent);border-color:var(--c-accent);color:#fff;box-shadow:0 0 0 5px #FDECE4}
.tl-body h3{margin-bottom:8px;font-size:19px}
.tl-body p{color:var(--c-ink-2);font-size:15.5px;line-height:1.85;margin:0 0 .6em}
.tl-body p:last-child{margin-bottom:0}
.tl-meta{display:flex;gap:14px;flex-wrap:wrap;margin-top:10px;font-size:13px;color:var(--c-ink-2)}
.tl-meta span{display:inline-flex;align-items:center;gap:6px}
.tl-meta i{color:var(--c-brand-2);font-size:12px}

.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:0 0 26px;box-shadow:var(--shadow-1);overflow:hidden;position:sticky;top:96px;
  transition:box-shadow var(--ease);
}
.side-card:hover{box-shadow:var(--shadow-2)}
.side-card figure{margin:0;overflow:hidden}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--ease)}
.side-card:hover img{transform:scale(1.03)}
.side-card .side-body{padding:24px 26px 0}
.side-card h3{font-size:18px;margin-bottom:12px}
.side-check{display:flex;flex-direction:column;gap:11px;margin:0 0 20px}
.side-check li{display:flex;gap:10px;font-size:14.5px;color:var(--c-ink-2);line-height:1.75}
.side-check i{color:var(--c-brand-2);font-size:13px;margin-top:6px}
@media(max-width:991px){
  .flow-grid{grid-template-columns:1fr;gap:34px}
  .side-card{position:static}
}

/* ============ 对比条 ============ */
.cmp-wrap{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.cmp-panel{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px 30px;box-shadow:var(--shadow-1);
}
.cmp-panel.result{background:var(--c-brand-soft);border-color:#CFE0D6}
.cmp-panel h3{font-size:18px;margin-bottom:6px}
.cmp-panel .cmp-note{font-size:14px;color:var(--c-ink-2);margin-bottom:18px}
.cmp-row{
  display:grid;grid-template-columns:130px minmax(0,1fr) 52px;align-items:center;gap:14px;
  padding:14px 0;border-bottom:1px dashed var(--c-line);
}
.cmp-row:last-child{border-bottom:none;padding-bottom:0}
.cmp-label{font-size:14.5px;font-weight:600;color:var(--c-ink)}
.cmp-bar{height:9px;border-radius:999px;background:#E7EDE8;overflow:hidden}
.cmp-bar span{display:block;height:100%;width:var(--w,50%);border-radius:999px;background:#B9C7BE;transition:width var(--ease)}
.cmp-panel.result .cmp-bar{background:#D5E5DA}
.cmp-panel.result .cmp-bar span{background:var(--c-accent)}
.cmp-panel.result .cmp-row:nth-child(3n) .cmp-bar span{background:var(--c-data)}
.cmp-val{font-size:14px;font-weight:800;color:var(--c-ink-2);text-align:right;font-variant-numeric:tabular-nums}
.cmp-panel.result .cmp-val{color:var(--c-brand)}
@media(max-width:991px){
  .cmp-wrap{grid-template-columns:1fr}
  .cmp-panel{padding:22px 20px}
  .cmp-row{grid-template-columns:104px minmax(0,1fr) 46px;gap:10px}
}

/* ============ 密集内容卡组 ============ */
.dense-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.dense-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:30px 30px 26px;box-shadow:var(--shadow-1);transition:all var(--ease);
  display:flex;flex-direction:column;
}
.dense-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.dense-card h3{margin-bottom:6px}
.dense-card .dense-sub{font-size:14px;color:var(--c-ink-2);margin-bottom:18px}
.dense-list{display:flex;flex-direction:column;gap:13px;margin-bottom:22px}
.dense-list li{display:flex;gap:11px;font-size:15px;color:var(--c-ink-2);line-height:1.78}
.dense-list .mk{
  flex:none;width:20px;height:20px;border-radius:6px;background:var(--c-brand-soft);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;margin-top:5px;
}
.dense-card .dense-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--c-line)}
@media(max-width:767px){.dense-grid{grid-template-columns:1fr}.dense-card{padding:24px 20px}}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:start}
.faq-side h2{margin-top:0}
.faq-side p{color:var(--c-ink-2);font-size:15.5px}
.faq-side .faq-help{
  margin-top:22px;background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-brand);
  border-radius:12px;padding:18px 20px;box-shadow:var(--shadow-1);
}
.faq-side .faq-help strong{display:block;font-size:15px;margin-bottom:6px}
.faq-side .faq-help span{font-size:14px;color:var(--c-ink-2);line-height:1.8;display:block}
.faq-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;background:transparent;border:none;text-align:left;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:color var(--ease),background var(--ease);
}
.faq-q:hover{background:#FAFCFA;color:var(--c-brand)}
.faq-q[aria-expanded="true"]{color:var(--c-brand)}
.faq-icon{flex:none;width:18px;height:18px;position:relative;margin-top:6px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-brand-2);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2)}
@media(max-width:991px){
  .faq-grid{grid-template-columns:1fr;gap:28px}
}

/* ============ 表单 ============ */
.cta-form-sec{background:var(--c-brand);color:#DCEAE2;border-top:1px solid #0C3A2B}
.cta-form-sec h2{color:#fff;margin-top:0}
.cta-form-sec .cta-lead{color:#A9C6B8;font-size:15.5px;max-width:560px;margin-bottom:0}
.form-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:center}
.inline-form{display:grid;grid-template-columns:1fr 1fr auto;gap:14px;align-items:end}
.field label{display:block;font-size:13.5px;font-weight:600;color:#A9C6B8;margin-bottom:7px}
.field input{
  width:100%;height:48px;border-radius:var(--radius-btn);border:1px solid #2C6A55;
  background:#0E4634;color:#fff;padding:0 14px;font-size:15px;transition:all var(--ease);
}
.field input::placeholder{color:#7FA694}
.field input:focus{
  outline:none;border-color:var(--c-accent-2);background:#0B3E2E;
  box-shadow:0 0 0 3px rgba(255,176,32,.2);
}
.form-tip{grid-column:1/-1;font-size:13px;color:#8FB2A2;margin-top:2px}
.form-tip a{color:var(--c-accent-2);text-decoration:underline}
@media(max-width:991px){
  .form-grid{grid-template-columns:1fr;gap:28px}
  .inline-form{grid-template-columns:1fr}
  .inline-form .btn-brand{width:100%}
}

/* ============ 页脚 ============ */
.footer{background:var(--c-brand);color:#C7DCD1;padding:66px 0 0;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:38px;padding-bottom:46px}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer p{color:#A9C6B8;font-size:14.5px;line-height:1.85;margin:16px 0 0;max-width:330px}
.footer-brand{display:flex;align-items:center;gap:11px}
.footer .brand-name{color:#fff}
.footer .brand-mark{background:#0C3A2B}
.footer-list li{margin-bottom:11px}
.footer-list a{color:#C7DCD1;font-size:14px}
.footer-list a:hover{color:var(--c-accent-2);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;color:#C7DCD1;font-size:14px;align-items:flex-start}
.footer-contact i{color:#7FA694;margin-top:4px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8FB2A2;
}
.back-top{
  position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1.5px solid var(--c-brand);color:var(--c-brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--ease);z-index:1040;
  box-shadow:var(--shadow-1);
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
@media(max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer{padding-top:52px}
  .footer-bottom{flex-direction:column;gap:8px}
  .back-top{right:16px;bottom:16px}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}