/* roulang page: index */
:root{
  --brand:#0E6E66;
  --brand-deep:#0A3D3A;
  --brand-tint:#E6F2F0;
  --cta:#FF6A3D;
  --cta-hover:#E8562C;
  --cta-active:#CF4A22;
  --promo:#E3A21A;
  --bg:#FBF9F4;
  --bg-alt:#F3F7F5;
  --surface:#FFFFFF;
  --ink:#17211F;
  --ink-2:#4B5B57;
  --ink-3:#8A9995;
  --line:#E2E8E4;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 6px 24px rgba(14,110,104,.08);
  --shadow-2:0 14px 34px rgba(14,110,104,.14);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.section{padding:80px 0;}
.section-alt{background:var(--bg-alt);}
.section-deep{background:var(--brand-deep);color:#EAF4F2;}
.section-head{max-width:660px;}
.section-head h2{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:40em;}
.section-head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:36px;}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand);background:var(--brand-tint);border-radius:999px;padding:5px 14px;font-weight:600;}

/* 促销条 */
.promo-bar{background:var(--brand-deep);color:#DCEDEA;font-size:13px;}
.promo-bar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.promo-bar strong{color:#fff;font-weight:600;}
.promo-bar .promo-links{display:flex;align-items:center;gap:16px;}
.promo-bar a{color:var(--promo);font-weight:600;transition:opacity .18s;}
.promo-bar a:hover{opacity:.8;}
.promo-close{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.12);color:#fff;line-height:1;display:inline-flex;align-items:center;justify-content:center;font-size:14px;transition:background .18s;}
.promo-close:hover{background:rgba(255,255,255,.26);}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;gap:40px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;white-space:nowrap;}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:grid;place-items:center;color:#fff;box-shadow:inset 0 -6px 12px rgba(0,0,0,.12);}
.logo-mark svg{width:19px;height:19px;}
.nav-links{display:flex;align-items:center;gap:28px;flex:1;}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--ink-2);transition:color .18s;}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand);transition:width .18s;}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{width:100%;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:18px;}
.nav-quiet{font-size:14px;color:var(--ink-2);transition:color .18s;}
.nav-quiet:hover{color:var(--brand);}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:90;background:var(--surface);padding:18px 20px 32px;display:none;flex-direction:column;overflow-y:auto;}
.drawer.open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);font-size:20px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{padding:15px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink);}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:22px;display:grid;gap:12px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:background .18s,color .18s,box-shadow .18s,transform .18s,border-color .18s;}
.btn-primary{background:var(--cta);color:#fff;box-shadow:0 6px 16px rgba(255,106,61,.24);}
.btn-primary:hover{background:var(--cta-hover);transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,106,61,.28);}
.btn-primary:active{background:var(--cta-active);transform:none;box-shadow:none;}
.btn-outline{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-outline:hover{background:var(--brand-tint);transform:translateY(-1px);}
.btn-outline:active{transform:none;background:#D6EAE7;}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{background:#EAF4F2;transform:translateY(-1px);}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);transition:gap .18s,color .18s;}
.btn-link:hover{gap:10px;color:var(--brand-deep);}

/* Hero */
.hero{position:relative;padding:64px 0 76px;overflow:hidden;background:linear-gradient(180deg,#FBF9F4 0%,#F4F9F7 100%);}
.hero::before{content:"";position:absolute;right:-120px;top:-140px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle at 30% 30%,rgba(14,110,104,.08),rgba(14,110,104,0) 70%);pointer-events:none;}
.hero::after{content:"";position:absolute;left:-180px;bottom:-200px;width:460px;height:460px;border-radius:50%;border:1px solid rgba(14,110,104,.10);pointer-events:none;}
.hero .container{position:relative;display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center;}
.badge-promo{display:inline-flex;align-items:center;gap:8px;background:#FBF0D6;color:#8A5B00;border-radius:999px;padding:6px 14px;font-size:12px;letter-spacing:.04em;font-weight:600;}
.badge-promo i{width:6px;height:6px;border-radius:50%;background:var(--promo);display:inline-block;}
.hero h1{margin-top:18px;font-size:44px;line-height:1.15;font-weight:700;letter-spacing:-.015em;color:var(--brand-deep);}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:var(--ink-2);max-width:32em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;}
.stat-num{font-size:26px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{font-size:13px;color:var(--ink-3);}
.hero-media{position:relative;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3;background:var(--brand-tint);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.price-tag{position:absolute;left:18px;bottom:18px;background:#fff;border-radius:12px;padding:10px 16px;box-shadow:var(--shadow-1);display:flex;align-items:center;gap:12px;}
.price-tag small{display:block;font-size:12px;color:var(--ink-3);line-height:1.4;}
.price-tag b{font-size:20px;color:var(--cta);font-variant-numeric:tabular-nums;line-height:1.3;}

/* 阶梯 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);transition:box-shadow .2s,transform .2s,border-color .2s;}
.step:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#CFE6E2;}
.step::after{content:"";position:absolute;right:-24px;top:52px;width:24px;border-top:2px dashed var(--line);}
.step:last-child::after{display:none;}
.step-num{font-size:32px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1;}
.step h3{font-size:18px;font-weight:600;margin-top:10px;}
.step .step-cond{margin-top:6px;font-size:13px;color:var(--ink-3);}
.step ul{margin-top:16px;display:grid;gap:8px;}
.step li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-2);}
.step li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--brand-tint);border:1px solid var(--brand);}
.step .step-fit{display:block;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);}

/* 对比表 */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);box-shadow:var(--shadow-1);}
table.compare{width:100%;min-width:780px;border-collapse:collapse;font-size:15px;}
.compare th,.compare td{padding:15px 20px;border-bottom:1px solid var(--line);text-align:center;vertical-align:middle;}
.compare thead th{background:var(--surface);font-size:16px;font-weight:700;color:var(--ink);}
.compare thead th:first-child{text-align:left;font-weight:600;color:var(--ink-2);font-size:14px;}
.compare tbody td:first-child,.compare tfoot td:first-child{text-align:left;color:var(--ink-2);font-size:14px;font-weight:500;}
.compare tbody tr:hover{background:#FAFCFB;}
.compare .is-rec{background:var(--brand-tint);}
.compare thead .is-rec{position:relative;}
.rec-flag{display:block;width:fit-content;margin:0 auto 8px;background:var(--cta);color:#fff;font-size:12px;font-weight:600;border-radius:999px;padding:2px 12px;letter-spacing:.04em;}
.compare .check{color:var(--brand);font-weight:700;font-size:17px;}
.compare .dash{color:var(--ink-3);}
.compare tfoot td{padding:20px;border-bottom:none;}
.compare tfoot .price{font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.compare tfoot .price small{font-size:12px;color:var(--ink-3);font-weight:400;margin-left:4px;}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-3);}

/* 限时入口 */
.cta-band{padding:48px 0;}
.cta-band .container{display:grid;grid-template-columns:1.15fr auto auto;gap:36px;align-items:center;}
.cta-band h2{font-size:28px;line-height:1.3;font-weight:700;color:#fff;}
.cta-band p{margin-top:8px;font-size:15px;color:#B9D3CE;max-width:32em;}
.countdown{display:flex;gap:10px;}
.countdown .unit{min-width:66px;text-align:center;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:10px 12px;}
.countdown .unit b{display:block;font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;color:#fff;}
.countdown .unit span{font-size:12px;color:#A9C7C2;letter-spacing:.04em;}

/* 服务保障 */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.svc-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:16/10;background:var(--brand-tint);}
.svc-media img{width:100%;height:100%;object-fit:cover;}
.svc-list{margin-top:28px;display:grid;gap:18px;}
.svc-item{display:flex;gap:16px;padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:box-shadow .2s,transform .2s;}
.svc-item:hover{box-shadow:var(--shadow-1);transform:translateY(-2px);}
.svc-icon{flex:0 0 38px;width:38px;height:38px;border-radius:10px;background:var(--brand-tint);color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:15px;}
.svc-item h3{font-size:16px;font-weight:600;}
.svc-item p{margin-top:4px;font-size:14px;color:var(--ink-2);}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow .22s,transform .22s,border-color .22s;}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#CFE6E2;}
.news-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-tint);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .38s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{display:inline-block;width:fit-content;background:var(--brand-tint);color:var(--brand);font-size:12px;letter-spacing:.04em;border-radius:999px;padding:3px 12px;font-weight:600;}
.tag-promo{background:#FBF0D6;color:#8A5B00;}
.news-body h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s;}
.news-card:hover .news-body h3{color:var(--brand);}
.news-excerpt{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);}
.empty-state{grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--surface);border:1px dashed #CFE0DC;border-radius:var(--radius-card);}
.empty-icon{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--brand-tint);display:grid;place-items:center;color:var(--brand);font-size:22px;}
.empty-state p{color:var(--ink-2);font-size:15px;}
.empty-state .empty-title{font-size:16px;font-weight:600;color:var(--ink);}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s,box-shadow .2s;}
.faq-item.open{border-color:#BFDCD7;box-shadow:var(--shadow-1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color .18s;}
.faq-q:hover{color:var(--brand);}
.faq-q .faq-icon{flex:0 0 24px;width:24px;height:24px;border-radius:50%;background:var(--brand-tint);color:var(--brand);display:grid;place-items:center;font-size:16px;line-height:1;transition:transform .2s;}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#F7FAF9;}
.faq-a p{padding:0 20px 18px;font-size:15px;color:var(--ink-2);}

/* 表单 */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;}
.contact-points{display:grid;gap:18px;margin-top:28px;}
.contact-point{display:flex;gap:14px;align-items:flex-start;}
.contact-point .dot{flex:0 0 28px;width:28px;height:28px;border-radius:8px;background:var(--brand-tint);color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:700;}
.contact-point h3{font-size:15px;font-weight:600;}
.contact-point p{font-size:14px;color:var(--ink-2);}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-1);}
.form-card h3{font-size:20px;font-weight:700;}
.form-card .form-hint{margin-top:6px;font-size:13px;color:var(--ink-3);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px;}
.field{display:grid;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{width:100%;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 14px;font-size:15px;background:#fff;transition:border-color .18s,box-shadow .18s;}
.field textarea{height:auto;min-height:108px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#C7DBD7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(14,110,104,.12);outline:none;}
.field input:invalid:not(:placeholder-shown){border-color:#D9534F;}
.checkbox-row{display:flex;gap:10px;align-items:flex-start;margin-top:16px;font-size:13px;color:var(--ink-2);line-height:1.6;}
.checkbox-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:0 0 16px;}
.checkbox-row a{color:var(--brand);text-decoration:underline;}
.form-submit{margin-top:20px;}
.form-msg{margin-top:12px;font-size:14px;color:var(--brand);display:none;}
.form-msg.show{display:block;}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:#C9DBD7;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:#A9C4BF;max-width:30em;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer li{margin-bottom:10px;font-size:14px;}
.site-footer a{color:#B7CFCA;transition:color .18s;}
.site-footer a:hover{color:#fff;}
.footer-contact li{color:#B7CFCA;font-size:14px;}
.footer-badge{display:inline-block;margin-top:14px;font-size:12px;letter-spacing:.04em;color:#8FB0AA;border:1px solid rgba(255,255,255,.16);border-radius:999px;padding:4px 12px;}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:#8FB0AA;}

@media (max-width:1024px){
  .nav{gap:24px;}
  .nav-links{gap:20px;}
  .hero .container{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:38px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .step::after{display:none;}
  .cta-band .container{grid-template-columns:1fr;justify-items:start;gap:24px;}
  .svc{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .contact{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .nav{height:64px;justify-content:space-between;gap:12px;}
  .nav-links,.nav-actions .btn,.nav-actions .nav-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:40px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:24px;}
  .stat-num{font-size:22px;}
  .section-head h2{font-size:24px;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1/-1;}
  .promo-bar .container{min-height:44px;font-size:12px;}
  .price-tag{padding:8px 12px;}
  .price-tag b{font-size:17px;}
  .faq-q{font-size:15px;padding:16px;}
  .form-card{padding:20px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .hero-actions{gap:10px;}
  .countdown .unit{min-width:58px;padding:8px 10px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --brand:#0E6E66;
  --brand-deep:#0A3D3A;
  --brand-tint:#E6F2F0;
  --cta:#FF6A3D;
  --cta-hover:#E8562C;
  --cta-active:#CF4A22;
  --promo:#E3A21A;
  --bg:#FBF9F4;
  --bg-alt:#F3F7F5;
  --surface:#FFFFFF;
  --ink:#17211F;
  --ink-2:#4B5B57;
  --ink-3:#8A9995;
  --line:#E2E8E4;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 6px 24px rgba(14,110,104,.08);
  --shadow-2:0 14px 34px rgba(14,110,104,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.2em;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  gap:40px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--brand-deep);
  white-space:nowrap;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:11px;
  background:var(--brand-tint);
  color:var(--brand);
  flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px;}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  font-weight:500;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease;
  border-radius:2px;
}
.nav-links a:hover,
.nav-links a.active{color:var(--brand);}
.nav-links a:hover::after,
.nav-links a.active::after{transform:scaleX(1);}
.nav-actions{
  display:flex;
  align-items:center;
  gap:18px;
  flex:0 0 auto;
}
.nav-quiet{
  font-size:15px;
  color:var(--ink-2);
  font-weight:500;
}
.nav-quiet:hover{color:var(--brand);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{
  background:var(--cta);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,106,61,.26);
}
.btn-primary:hover{background:var(--cta-hover);color:#fff;transform:translateY(-1px);}
.btn-primary:active{background:var(--cta-active);transform:translateY(0);}
.btn-outline{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-outline:active{background:#d8eae7;transform:translateY(0);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0 10px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- breadcrumb ---------- */
.crumbs{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
}
.crumbs-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--ink-3);
}
.crumbs-inner a{color:var(--ink-3);}
.crumbs-inner a:hover{color:var(--brand);}
.crumbs-inner .sep{color:#c3cfcb;}
.crumbs-inner .current{color:var(--brand);font-weight:600;}
.crumbs-inner .ellipsis{
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- article layout ---------- */
.article-wrap{
  padding:48px 0 72px;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 312px;
  gap:48px;
  align-items:start;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:40px 44px 48px;
}
.article-head{
  padding-bottom:24px;
  border-bottom:1px solid var(--line);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:var(--brand-tint);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.4;
}
.tag-promo{
  background:#FDF3DF;
  color:#9A6E08;
}
.article-head h1{
  margin-top:18px;
  font-size:36px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--ink-3);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta .dot{
  width:4px;height:4px;border-radius:50%;background:#cbd6d2;display:inline-block;
}

/* ---------- prose ---------- */
.prose{
  max-width:760px;
  padding-top:30px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
}
.prose > * + *{margin-top:18px;}
.prose h2{
  position:relative;
  margin-top:40px;
  padding-left:16px;
  font-size:22px;
  line-height:1.5;
  font-weight:700;
  color:var(--ink);
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.28em;
  bottom:.28em;
  width:4px;
  border-radius:3px;
  background:var(--brand);
}
.prose h3{
  margin-top:28px;
  font-size:18px;
  line-height:1.5;
  font-weight:600;
  color:var(--ink);
}
.prose p{color:var(--ink-2);}
.prose ul,.prose ol{padding-left:1.35em;}
.prose li+li{margin-top:8px;}
.prose li::marker{color:var(--brand);}
.prose a{color:var(--brand);border-bottom:1px solid rgba(14,110,104,.35);}
.prose a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}
.prose strong{color:var(--ink);font-weight:600;}
.prose blockquote{
  padding:18px 22px;
  background:var(--brand-tint);
  border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;
  color:var(--brand-deep);
  font-size:15.5px;
}
.prose blockquote p{color:inherit;}
.prose img{
  border-radius:var(--radius-card);
  margin-top:8px;
  box-shadow:var(--shadow-1);
}
.prose figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--ink-3);
  text-align:center;
}
.prose table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
}
.prose thead th{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
  text-align:left;
}
.prose th,.prose td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
}
.prose tbody tr:last-child td{border-bottom:0;}
.prose tbody tr:hover{background:#FAFCFB;}
.prose pre{
  background:#0F2A28;
  color:#DCEDEA;
  padding:18px 20px;
  border-radius:12px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.prose code{
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:.92em;
}
.prose :not(pre) > code{
  background:var(--brand-tint);
  color:var(--brand-deep);
  padding:2px 6px;
  border-radius:6px;
}
.prose hr{
  border:0;
  border-top:1px solid var(--line);
  margin:32px 0;
}

/* ---------- empty state ---------- */
.empty-state{
  max-width:760px;
  margin-top:32px;
  padding:48px 24px;
  text-align:center;
  background:var(--bg-alt);
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.empty-state .empty-ico{
  width:56px;height:56px;
  margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--brand-tint);
  color:var(--brand);
}
.empty-state .empty-ico svg{width:26px;height:26px;}
.empty-state h2{
  font-size:19px;
  color:var(--ink);
  font-weight:600;
}
.empty-state p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink-3);
}
.empty-state .btn{margin-top:22px;}

/* ---------- article footer cta ---------- */
.article-cta{
  max-width:760px;
  margin-top:44px;
  padding:28px 30px;
  background:var(--brand-tint);
  border-radius:var(--radius-card);
  border:1px solid #d3e7e4;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.article-cta h2{
  font-size:19px;
  font-weight:700;
  color:var(--brand-deep);
  line-height:1.5;
}
.article-cta p{
  margin-top:6px;
  font-size:14px;
  color:var(--ink-2);
  max-width:34em;
}
.article-foot-actions{
  max-width:760px;
  margin-top:30px;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}

/* ---------- sidebar ---------- */
.article-side{
  display:flex;
  flex-direction:column;
  gap:24px;
  position:sticky;
  top:96px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:22px 22px 24px;
}
.side-card h2{
  font-size:15px;
  font-weight:700;
  color:var(--ink);
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.side-list{
  list-style:none;
  padding:0;
  margin:14px 0 0;
}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);}
.side-list a{
  display:block;
  font-size:14.5px;
  line-height:1.6;
  color:var(--ink-2);
  font-weight:500;
}
.side-list a:hover{color:var(--brand);}
.side-list .side-meta{
  display:block;
  margin-top:6px;
  font-size:12.5px;
  color:var(--ink-3);
}
.side-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.side-tags a{
  padding:6px 12px;
  border-radius:999px;
  background:var(--bg-alt);
  border:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink-2);
}
.side-tags a:hover{
  background:var(--brand-tint);
  border-color:#c4e0dc;
  color:var(--brand);
}
.side-promo{
  background:var(--brand-deep);
  border-radius:var(--radius-card);
  padding:24px 22px;
  color:#fff;
}
.side-promo h2{
  font-size:16px;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
}
.side-promo p{
  margin-top:10px;
  font-size:13.5px;
  line-height:1.75;
  color:rgba(255,255,255,.78);
}
.side-promo .btn{margin-top:18px;width:100%;}

/* ---------- related ---------- */
.related{
  margin-top:56px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:24px;
  font-weight:700;
  color:var(--ink);
  line-height:1.4;
}
.section-head p{
  font-size:14px;
  color:var(--ink-3);
  margin-top:6px;
}
.link-more{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.link-more:hover{color:var(--brand-deep);}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.related-card:hover{
  box-shadow:var(--shadow-2);
  transform:translateY(-3px);
  border-color:#d3e7e4;
}
.related-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--bg-alt);
}
.related-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-body{
  padding:18px 20px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.related-body .tag{align-self:flex-start;}
.related-body h3{
  font-size:16.5px;
  line-height:1.55;
  font-weight:600;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card:hover h3{color:var(--brand);}
.related-body .rel-meta{
  margin-top:auto;
  font-size:12.5px;
  color:var(--ink-3);
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.76);
  padding:64px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr 1fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .logo-mark{
  background:rgba(255,255,255,.12);
  color:#BFE3DE;
}
.footer-about{
  font-size:13.5px;
  line-height:1.85;
  color:rgba(255,255,255,.7);
  max-width:30em;
}
.footer-badge{
  display:inline-block;
  margin-top:16px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  font-size:12px;
  color:#BFE3DE;
  letter-spacing:.04em;
}
.site-footer h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.site-footer ul{
  list-style:none;
  padding:0;
  margin:0;
}
.site-footer li{
  font-size:13.5px;
  line-height:1.7;
  margin-bottom:10px;
  color:rgba(255,255,255,.7);
}
.site-footer a{color:rgba(255,255,255,.7);}
.site-footer a:hover{color:#fff;}
.footer-contact li{color:rgba(255,255,255,.7);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav{gap:24px;}
  .nav-links{gap:20px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:32px;}
  .article-main{padding:32px 30px 38px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-actions .nav-quiet{display:none;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .nav{min-height:64px;gap:16px;}
  .nav-links{
    position:fixed;
    inset:64px 0 auto 0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:12px 20px 20px;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-2);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .nav-links.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a::after{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn{display:none;}
  .article-wrap{padding:32px 0 56px;}
  .article-layout{grid-template-columns:1fr;}
  .article-side{position:static;order:2;}
  .article-main{padding:26px 20px 30px;}
  .article-head h1{font-size:27px;line-height:1.35;}
  .prose h2{font-size:20px;}
  .prose{font-size:15.5px;}
  .article-cta{padding:22px 20px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .crumbs-inner .ellipsis{max-width:220px;}
}
@media (max-width:520px){
  .logo{font-size:16px;}
  .logo-mark{width:30px;height:30px;border-radius:10px;}
  .article-head h1{font-size:23px;}
  .article-meta{font-size:12.5px;gap:8px 14px;}
  .btn{height:42px;padding:0 20px;font-size:14.5px;}
  .btn-lg{height:48px;padding:0 24px;font-size:15px;}
  .related-body{padding:16px 16px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .crumbs-inner{font-size:12px;}
  .article-foot-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#0E6E66;
  --brand-deep:#0A3D3A;
  --brand-tint:#E6F2F0;
  --cta:#FF6A3D;
  --cta-hover:#E8562C;
  --cta-active:#CF4A22;
  --promo:#E3A21A;
  --promo-tint:#FBF1DA;
  --bg:#FBF9F4;
  --bg-alt:#F3F7F5;
  --surface:#FFFFFF;
  --ink:#17211F;
  --ink-2:#4B5B57;
  --ink-3:#8A9995;
  --line:#E2E8E4;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 6px 24px rgba(14,110,104,.08);
  --shadow-2:0 14px 34px rgba(14,110,104,.14);
  --container:1200px;
  --sp:8px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-deep)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:32px;line-height:1.25;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--ink-2);max-width:34em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand);background:var(--brand-tint);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow.promo{background:var(--promo-tint);color:#8A6410}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:40px;height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;
  white-space:nowrap;
}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--brand-tint);color:var(--brand);
}
.logo-mark svg{width:22px;height:22px}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-links a{
  position:relative;
  font-size:15px;color:var(--ink-2);font-weight:500;
  padding:6px 0;line-height:1.4;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-quiet{font-size:15px;color:var(--ink-2);font-weight:500}
.nav-quiet:hover{color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:12px;background:var(--surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  margin-left:12px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;text-align:center;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--cta);color:#fff;box-shadow:0 6px 18px rgba(255,106,61,.24)}
.btn-primary:hover{background:var(--cta-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,106,61,.3)}
.btn-primary:active{background:var(--cta-active);transform:translateY(0);box-shadow:none}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px)}
.btn-outline:active{background:#D6E9E6;transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--line);box-shadow:var(--shadow-1)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);font-size:15px}
.btn-link:hover{gap:10px;color:var(--brand-deep)}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- breadcrumb ---------- */
.breadcrumb{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb .container{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C6D2CD}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ---------- hero banner ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EAF4F2 0%,var(--brand-tint) 100%);
  border-bottom:1px solid #D8E8E4;
}
.page-hero::before{
  content:"";position:absolute;inset:auto -10% -60% -10%;height:220px;
  background:radial-gradient(ellipse at center,rgba(14,110,104,.10),transparent 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;padding-top:56px;padding-bottom:56px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.page-hero h1{font-size:44px;line-height:1.15;font-weight:700;letter-spacing:-.02em;color:var(--brand-deep)}
.page-hero h1 em{font-style:normal;color:var(--brand)}
.hero-lead{margin-top:16px;font-size:18px;line-height:1.8;color:var(--ink-2);max-width:30em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:32px;padding-top:24px;border-top:1px dashed #C8DEDA}
.hero-meta div strong{display:block;font-size:24px;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums}
.hero-meta div span{font-size:13px;color:var(--ink-2)}
.hero-figure{position:relative}
.hero-media{
  aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.7);background:#DDEBE8;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-price{
  position:absolute;left:-12px;bottom:20px;
  background:var(--surface);border-radius:14px;padding:12px 18px;
  box-shadow:var(--shadow-2);border:1px solid var(--line);
}
.hero-price b{display:block;font-size:20px;color:var(--cta);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-price span{font-size:12px;color:var(--ink-3);letter-spacing:.04em}

/* ---------- stats strip ---------- */
.stat-strip{background:var(--surface);border-bottom:1px solid var(--line)}
.stat-strip .container{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-top:32px;padding-bottom:32px}
.stat-item{display:flex;gap:12px;align-items:flex-start}
.stat-item .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);margin-top:10px;flex:0 0 8px}
.stat-item strong{display:block;font-size:18px;color:var(--ink);font-weight:700;line-height:1.4}
.stat-item span{font-size:13px;color:var(--ink-3)}

/* ---------- plan cards (horizontal) ---------- */
.plan-list{display:flex;flex-direction:column;gap:24px;margin-top:8px}
.plan-card{
  display:grid;grid-template-columns:40% 1fr;gap:0;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.plan-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:#CFE3DE}
.plan-media{position:relative;background:#E8F1EF;overflow:hidden;aspect-ratio:16/10}
.plan-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.plan-card:hover .plan-media img{transform:scale(1.04)}
.plan-body{padding:28px 30px;display:flex;flex-direction:column;gap:14px}
.plan-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand);background:var(--brand-tint);
  border-radius:999px;padding:4px 12px;line-height:1.4;
}
.tag.promo{background:var(--promo-tint);color:#8A6410}
.plan-body h3{font-size:20px;font-weight:600;line-height:1.4}
.plan-body h3 a{color:var(--ink)}
.plan-body h3 a:hover{color:var(--brand)}
.plan-desc{color:var(--ink-2);font-size:15px}
.plan-points{display:grid;gap:8px}
.plan-points li{position:relative;padding-left:22px;font-size:14px;color:var(--ink-2);line-height:1.7}
.plan-points li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);border-radius:1px;
}
.plan-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:auto;padding-top:8px;border-top:1px dashed var(--line)}
.price{font-size:15px;color:var(--ink-3)}
.price b{font-size:22px;color:var(--brand-deep);font-variant-numeric:tabular-nums;margin-right:4px}
.price small{display:block;font-size:12px;color:var(--ink-3)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;counter-reset:step}
.step-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.step-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;background:var(--brand-tint);
  color:var(--brand);font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--ink-2)}
.step-card .step-cond{display:block;margin-top:14px;font-size:13px;color:var(--brand);font-weight:600}
.step-line{display:none}

/* ---------- compare table ---------- */
.table-wrap{
  margin-top:8px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow-x:auto}
table.compare{width:100%;border-collapse:collapse;min-width:720px}
table.compare th,table.compare td{
  padding:16px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);
  vertical-align:middle;
}
table.compare thead th{
  background:var(--bg-alt);font-size:14px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.compare thead th.recommend{background:var(--brand-tint);color:var(--brand-deep);position:relative}
table.compare thead th.recommend::after{
  content:"推荐";position:absolute;top:6px;right:8px;
  font-size:11px;letter-spacing:.04em;color:#fff;background:var(--cta);
  border-radius:999px;padding:2px 8px;line-height:1.5;
}
table.compare tbody th{font-weight:600;color:var(--ink-2);background:var(--surface);white-space:nowrap}
table.compare td{color:var(--ink-2)}
table.compare td.recommend{background:#F4FAF8;color:var(--brand-deep);font-weight:600}
table.compare tbody tr:last-child th,table.compare tbody tr:last-child td{border-bottom:none}
table.compare tfoot td{padding:20px 18px;background:var(--bg-alt)}
table.compare tfoot td.recommend{background:var(--brand-tint)}
.tick{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;color:var(--brand)}
.dash{color:#C4D2CE}
.table-note{font-size:13px;color:var(--ink-3);margin-top:14px}

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.flow-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 20px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,transform .2s ease;
}
.flow-item:hover{box-shadow:var(--shadow-2);transform:translateY(-2px)}
.flow-item .idx{
  font-size:12px;letter-spacing:.04em;font-weight:700;color:var(--brand);
  background:var(--brand-tint);border-radius:999px;padding:3px 10px;display:inline-block;margin-bottom:14px;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;margin-top:8px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#CFE3DE;box-shadow:var(--shadow-2)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand);position:relative;
  transition:background-color .2s ease,transform .2s ease;
}
.faq-item summary .icon::before,
.faq-item summary .icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item summary .icon::before{width:12px;height:2px}
.faq-item summary .icon::after{width:2px;height:12px;transition:opacity .2s ease}
.faq-item[open] summary .icon{background:var(--brand);color:#fff}
.faq-item[open] summary .icon::after{opacity:0}
.faq-body{padding:0 22px 22px;color:var(--ink-2);font-size:15px;background:#FAFCFB}

/* ---------- cta / contact ---------- */
.cta-band{
  background:var(--brand-deep);color:#EAF4F2;border-radius:20px;
  padding:48px 44px;position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border:1px solid rgba(255,255,255,.14);border-radius:50%;
}
.cta-band::after{
  content:"";position:absolute;right:20px;bottom:-110px;width:220px;height:220px;
  border:1px solid rgba(255,255,255,.10);border-radius:50%;
}
.cta-band h2{font-size:28px;line-height:1.3;font-weight:700;color:#fff;position:relative}
.cta-band p{margin-top:12px;color:#BFDCD8;max-width:36em;position:relative}
.cta-band .hero-actions{margin-top:24px;position:relative}
.cta-band .btn-outline{color:#fff;border-color:rgba(255,255,255,.5)}
.cta-band .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.contact-card{
  position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:16px;padding:26px;min-width:270px;
}
.contact-card h3{font-size:16px;color:#fff;margin-bottom:14px;font-weight:600}
.contact-card ul{display:grid;gap:12px}
.contact-card li{font-size:14px;color:#C9E2DE;display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.contact-card li b{color:#fff;font-weight:600}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#C9E2DE;margin-top:0}
.site-footer .container{padding-top:56px;padding-bottom:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#8FD3C9}
.footer-about{font-size:14px;line-height:1.9;color:#A9C9C4;max-width:30em}
.footer-badge{
  display:inline-block;margin-top:16px;font-size:12px;letter-spacing:.04em;
  color:#F0D79A;border:1px solid rgba(240,215,154,.4);border-radius:999px;padding:4px 12px;
}
.site-footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.site-footer ul{display:grid;gap:10px}
.site-footer li{font-size:14px;color:#A9C9C4;line-height:1.7}
.site-footer ul a{color:#A9C9C4;font-size:14px}
.site-footer ul a:hover{color:#fff}
.footer-contact li{color:#A9C9C4}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  font-size:13px;color:#8FB3AE;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav{gap:24px}
  .nav-links{gap:20px}
  .page-hero h1{font-size:36px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{max-width:560px}
  .plan-card{grid-template-columns:44% 1fr}
  .footer-grid{grid-template-columns:1fr 1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .stat-strip .container{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .container{padding:0 20px}
  .nav{height:64px}
  .nav-links{
    position:fixed;left:0;right:0;top:64px;
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    background:var(--surface);border-bottom:1px solid var(--line);
    padding:8px 20px 20px;box-shadow:var(--shadow-2);
    transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    margin-left:0;
  }
  body.nav-open .nav-links{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto}
  .nav-links a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)}
  .nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .page-hero .container{padding-top:36px;padding-bottom:40px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:16px}
  .hero-meta{gap:20px}
  .hero-meta div strong{font-size:20px}
  .hero-price{left:8px;bottom:12px;padding:10px 14px}
  .plan-card{grid-template-columns:1fr}
  .plan-media{aspect-ratio:16/9}
  .plan-body{padding:22px 20px}
  .steps{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .cta-band{padding:32px 22px;border-radius:16px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .footer-brand{font-size:17px}
  .section-head h2{font-size:24px}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:480px){
  .stat-strip .container{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .plan-foot{flex-direction:column;align-items:flex-start}
  .plan-foot .btn{width:100%}
  .contact-card{min-width:0;width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand:#0E6E66;
  --brand-deep:#0A3D3A;
  --brand-tint:#E6F2F0;
  --cta:#FF6A3D;
  --cta-hover:#E8562C;
  --cta-active:#CF4A22;
  --promo:#E3A21A;
  --promo-tint:#FBF1DC;
  --bg:#FBF9F4;
  --bg-alt:#F3F7F5;
  --surface:#FFFFFF;
  --ink:#17211F;
  --ink-2:#4B5B57;
  --ink-3:#8A9995;
  --line:#E2E8E4;
  --danger:#C9402B;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-1:0 6px 24px rgba(14,110,104,.08);
  --shadow-2:0 14px 34px rgba(14,110,104,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-card);}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease,box-shadow .18s ease,transform .18s ease;}
a:hover{color:var(--cta-hover);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  gap:40px;
  min-height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--brand-deep);
  letter-spacing:.01em;
  white-space:nowrap;
}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:11px;
  background:var(--brand-tint);
  color:var(--brand);
  flex:none;
}
.logo-mark svg{width:22px;height:22px;}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-right:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 0;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:2px solid transparent;
}
.nav-links a:hover{color:var(--brand);border-bottom-color:var(--brand-tint);}
.nav-links a.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:18px;}
.nav-quiet{
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid transparent;
}
.nav-quiet:hover{color:var(--brand);border-bottom-color:var(--brand);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink);
  transition:transform .2s ease,opacity .2s ease;
}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0;}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{
  background:var(--cta);
  color:#fff;
  box-shadow:0 6px 18px rgba(255,106,61,.24);
}
.btn-primary:hover{background:var(--cta-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,106,61,.3);}
.btn-primary:active{background:var(--cta-active);transform:translateY(0);box-shadow:none;}
.btn-outline{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-outline:active{background:#d8e9e6;transform:translateY(0);}
.btn-lg{height:52px;padding:0 30px;font-size:16px;}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-3);
  padding:22px 0 14px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span.sep{color:#c3cecb;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1200px 420px at 88% -10%, rgba(14,110,104,.07), transparent 60%),
    linear-gradient(180deg,var(--brand-tint) 0%, var(--bg) 88%);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-40px;
  bottom:-30px;
  width:520px;
  height:200px;
  pointer-events:none;
  opacity:.35;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='520' height='200' viewBox='0 0 520 200'%3E%3Cg fill='none' stroke='%230E6E66' stroke-width='1.2'%3E%3Cpath d='M0 120c55 0 65-38 120-38s65 38 120 38 65-38 120-38 65 38 160 38'/%3E%3Cpath d='M0 156c55 0 65-38 120-38s65 38 120 38 65-38 120-38 65 38 160 38'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-size:contain;
}
.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:56px;
  align-items:center;
  padding:18px 0 64px;
}
.hero-copy h1{
  font-size:44px;
  line-height:1.15;
  letter-spacing:-.01em;
  margin:18px 0 0;
  color:var(--brand-deep);
}
.hero-copy .lead{
  max-width:40ch;
  margin-top:18px;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-size:12px;
  letter-spacing:.04em;
  font-weight:600;
  line-height:1.4;
}
.badge-amber{background:var(--promo-tint);color:#8A5E0A;border:1px solid #F0DCAE;}
.badge-brand{background:var(--brand-tint);color:var(--brand);border:1px solid #CFE5E1;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  margin-top:26px;
}
.hero-points li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--ink-2);
}
.hero-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--brand-tint);
  border:2px solid var(--brand);
}
.hero-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
  background:var(--brand-tint);
}
.hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
}
.hero-tag{
  position:absolute;
  left:18px;
  bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.94);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:600;
  box-shadow:var(--shadow-1);
}

/* ---------- 数据条 ---------- */
.stats-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:-34px;
  position:relative;
  z-index:2;
  padding-bottom:8px;
}
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 24px;
  box-shadow:var(--shadow-1);
}
.stat b{
  display:block;
  font-size:30px;
  line-height:1.2;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.01em;
}
.stat span{
  display:block;
  margin-top:6px;
  font-size:14px;
  color:var(--ink-3);
}

/* ---------- 板块 ---------- */
.section{padding:80px 0;}
.section.alt{background:var(--bg-alt);}
.section-head{
  max-width:720px;
  margin-bottom:40px;
}
.eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.14em;
  color:var(--brand);
  font-weight:700;
  margin-bottom:10px;
}
.section-title{
  font-size:32px;
  line-height:1.25;
  color:var(--brand-deep);
}
.section-desc{
  margin-top:12px;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:42ch;
}
[id]{scroll-margin-top:88px;}

/* ---------- 筛选胶囊 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.chip{
  display:inline-flex;
  align-items:center;
  height:36px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:14px;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  box-shadow:0 6px 16px rgba(14,110,104,.18);
}
.chip:active{transform:translateY(1px);}

/* ---------- 内容布局 ---------- */
.content-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 304px;
  gap:36px;
  align-items:start;
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.topic-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.topic-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:#CFE5E1;
}
.topic-media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--brand-tint);
}
.topic-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .4s ease;
}
.topic-card:hover .topic-media img{transform:scale(1.03);}
.topic-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.topic-tag{
  align-self:flex-start;
  padding:3px 12px;
  border-radius:var(--radius-pill);
  background:var(--brand-tint);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.03em;
}
.topic-title{
  margin-top:14px;
  font-size:20px;
  line-height:1.4;
  font-weight:600;
  color:var(--ink);
}
.topic-card:hover .topic-title{color:var(--brand);}
.topic-desc{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.topic-link{
  margin-top:auto;
  padding-top:18px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.topic-link::after{content:"→";transition:transform .2s ease;}
.topic-card:hover .topic-link::after{transform:translateX(4px);}
.topic-card.is-hidden{display:none;}
.filter-empty{
  display:none;
  padding:56px 24px;
  text-align:center;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  color:var(--ink-3);
  font-size:15px;
}
.filter-empty.show{display:block;}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:sticky;
  top:96px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-1);
}
.side-card h3{
  font-size:16px;
  font-weight:700;
  color:var(--brand-deep);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag-cloud a{
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:var(--bg-alt);
  color:var(--ink-2);
  font-size:13px;
  border:1px solid transparent;
}
.tag-cloud a:hover{background:var(--brand-tint);color:var(--brand);border-color:#CFE5E1;}
.side-list li + li{margin-top:2px;}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--ink-2);
}
.side-list a span{color:var(--ink-3);font-size:13px;}
.side-list a:hover{background:var(--brand-tint);color:var(--brand);}
.side-cta{
  background:var(--brand-deep);
  color:#fff;
  border-color:var(--brand-deep);
}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.18);}
.side-cta p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.side-cta .btn{width:100%;margin-top:16px;}

/* ---------- 对比表 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  box-shadow:var(--shadow-1);
}
.compare-table{
  width:100%;
  min-width:680px;
  border-collapse:collapse;
  font-size:15px;
}
.compare-table thead th{
  background:var(--brand-tint);
  color:var(--brand-deep);
  text-align:left;
  font-weight:700;
  font-size:14px;
  letter-spacing:.02em;
  padding:16px 22px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.compare-table tbody td{
  padding:16px 22px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  vertical-align:top;
}
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table tbody tr:hover td{background:#FAFCFB;}
.compare-table td:first-child{
  font-weight:600;
  color:var(--ink);
  white-space:nowrap;
}
.compare-table td.after{color:var(--brand-deep);font-weight:500;}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.flow li{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.flow li:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--brand-tint);
  color:var(--brand);
  font-weight:700;
  font-size:15px;
  font-variant-numeric:tabular-nums;
}
.flow li h3{margin-top:16px;font-size:18px;font-weight:600;}
.flow li p{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#CFE5E1;}
.faq-item[open]{border-color:#CFE5E1;box-shadow:var(--shadow-1);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  cursor:pointer;
  list-style:none;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:26px;
  height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--brand-tint);
  color:var(--brand);
  font-size:18px;
  font-weight:500;
  line-height:1;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--brand);
  color:#fff;
}
.faq-item summary:hover::after{background:#CFE5E1;}
.faq-item[open] summary:hover::after{background:var(--brand-deep);}
.faq-answer{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  border-top:1px solid transparent;
}

/* ---------- CTA / 表单 ---------- */
.cta-section{background:var(--bg-alt);padding:80px 0;}
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:48px;
  align-items:start;
}
.cta-copy h2{font-size:32px;line-height:1.25;color:var(--brand-deep);}
.cta-copy > p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:38ch;}
.trust-list{margin-top:28px;display:flex;flex-direction:column;gap:16px;}
.trust-list li{display:flex;gap:14px;align-items:flex-start;}
.trust-icon{
  flex:none;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--surface);
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand);
  font-weight:700;
  font-size:15px;
}
.trust-list b{display:block;font-size:15px;color:var(--ink);}
.trust-list span{display:block;font-size:14px;color:var(--ink-3);line-height:1.7;}

.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px;
  box-shadow:var(--shadow-1);
}
.form-card h3{font-size:20px;color:var(--brand-deep);}
.form-card .form-sub{margin-top:6px;font-size:14px;color:var(--ink-3);}
.form-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
  margin-top:22px;
}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2);}
.input,.select,.textarea{
  width:100%;
  height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--surface);
  color:var(--ink);
  font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.input:hover,.select:hover,.textarea:hover{border-color:#C6D6D2;}
.input:focus,.select:focus,.textarea:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(14,110,104,.12);
}
.input.error,.textarea.error{border-color:var(--danger);box-shadow:0 0 0 3px rgba(201,64,43,.1);}
.field-hint{font-size:12.5px;color:var(--danger);display:none;}
.field-hint.show{display:block;}
.check-row{
  grid-column:1/-1;
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  color:var(--ink-3);
  line-height:1.7;
}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand);flex:none;}
.check-row a{color:var(--brand);text-decoration:underline;}
.form-submit{grid-column:1/-1;margin-top:4px;}
.form-submit .btn{width:100%;height:52px;font-size:16px;}
.form-note{
  grid-column:1/-1;
  margin-top:10px;
  font-size:13px;
  color:var(--ink-3);
  text-align:center;
}
.form-success{
  display:none;
  margin-top:16px;
  padding:14px 18px;
  border-radius:var(--radius-btn);
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-size:14px;
  border:1px solid #CFE5E1;
}
.form-success.show{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.76);
  padding:64px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr 1fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#fff;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:30ch;}
.footer-badge{
  display:inline-block;
  margin-top:16px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.1);
  color:rgba(255,255,255,.85);
  font-size:12px;
  letter-spacing:.04em;
}
.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:rgba(255,255,255,.72);font-size:14px;}
.site-footer ul a:hover{color:#fff;}
.footer-contact li{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 断点 ---------- */
@media (max-width:1280px){
  .container{padding:0 24px;}
  .hero-grid{gap:40px;}
}
@media (max-width:1024px){
  .nav{flex-wrap:wrap;min-height:72px;padding:10px 0;row-gap:0;gap:0;}
  .logo{order:1;}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto;}
  .nav-links,.nav-actions{display:none;}
  .site-header.is-open .nav-links{
    order:3;
    display:flex;
    flex-direction:column;
    width:100%;
    gap:0;
    margin-right:0;
    padding-top:6px;
    border-top:1px solid var(--line);
  }
  .site-header.is-open .nav-links a{
    width:100%;
    padding:13px 2px;
    border-bottom:1px solid var(--line);
  }
  .site-header.is-open .nav-links a.active{border-bottom-color:var(--line);border-left:3px solid var(--brand);padding-left:10px;border-radius:2px;}
  .site-header.is-open .nav-actions{
    order:4;
    display:flex;
    width:100%;
    padding:16px 0 6px;
    gap:14px;
  }
  .hero-grid{grid-template-columns:1fr;gap:32px;padding-bottom:48px;}
  .hero-copy h1{font-size:36px;}
  .hero-media{aspect-ratio:16/10;max-width:560px;}
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:24px;}
  .content-layout{grid-template-columns:1fr;}
  .sidebar{position:static;flex-direction:row;flex-wrap:wrap;}
  .sidebar .side-card{flex:1 1 280px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;}
}
@media (max-width:768px){
  .section{padding:48px 0;}
  .section-title,.cta-copy h2{font-size:24px;}
  .hero-copy h1{font-size:30px;}
  .hero-copy .lead{font-size:16px;}
  .card-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .breadcrumb{padding:16px 0 10px;font-size:12.5px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-about{max-width:none;}
  .form-card{padding:22px 18px;}
  .form-grid{grid-template-columns:1fr;}
  .topic-body{padding:18px;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-answer{padding:0 18px 18px;}
  .stat{padding:18px;}
  .stat b{font-size:26px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .hero-actions .btn{width:100%;}
  .hero-points{gap:8px 18px;}
  .stats-strip{grid-template-columns:1fr;gap:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .sidebar{flex-direction:column;}
  .sidebar .side-card{flex:1 1 auto;width:100%;}
  .filter-bar{gap:8px;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
}

/* roulang page: category3 */
:root{
  --brand:#0E6E66;
  --brand-deep:#0A3D3A;
  --brand-tint:#E6F2F0;
  --cta:#FF6A3D;
  --cta-hover:#E8562C;
  --cta-active:#CF4A22;
  --promo:#E3A21A;
  --bg:#FBF9F4;
  --bg-alt:#F3F7F5;
  --surface:#FFFFFF;
  --ink:#17211F;
  --ink-2:#4B5B57;
  --ink-3:#8A9995;
  --line:#E2E8E4;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-1:0 6px 24px rgba(14,110,104,.08);
  --shadow-2:0 14px 34px rgba(14,110,104,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-deep)}
button{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--brand);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{color:var(--ink-2);max-width:38em}
.skip{position:absolute;left:-9999px;top:0;background:var(--surface);padding:10px 18px;border-radius:0 0 10px 0;z-index:99}
.skip:focus{left:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:40px;min-height:72px}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;
}
.logo:hover{color:var(--brand)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--brand-tint);color:var(--brand);flex:0 0 34px;
}
.logo-mark svg{width:20px;height:20px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a:focus-visible::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto}
.nav-quiet{font-size:15px;font-weight:500;color:var(--ink-2)}
.nav-quiet:hover{color:var(--brand)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;border:1px solid var(--line);
  border-radius:10px;background:var(--surface);cursor:pointer;
  transition:border-color .18s ease,background .18s ease;
}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle:hover{border-color:var(--brand);background:var(--brand-tint)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--cta);color:#fff;box-shadow:0 6px 18px rgba(255,106,61,.26)}
.btn-primary:hover{background:var(--cta-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,106,61,.32)}
.btn-primary:active{background:var(--cta-active);transform:translateY(0);box-shadow:0 4px 12px rgba(255,106,61,.24)}
.btn-secondary{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-secondary:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px)}
.btn-secondary:active{background:#d6eae7;transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;
}
.badge-amber{background:rgba(227,162,26,.14);color:#8a5f00;border:1px solid rgba(227,162,26,.38)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.03em;
}
.tag-soft{background:#fff;border:1px solid var(--line);color:var(--ink-2)}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding-top:26px;font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--brand);font-weight:600}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg-alt);padding:8px 0 64px}
.page-hero::after{
  content:"";position:absolute;inset:auto -10% -60% 40%;
  height:420px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(14,110,104,.10),rgba(14,110,104,0));
  pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding-top:36px;position:relative;z-index:1;
}
.hero-copy h1{font-size:42px;line-height:1.18;margin:16px 0 18px;max-width:16em}
.hero-copy .lead{font-size:17px;color:var(--ink-2);max-width:30em;margin-bottom:14px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin:20px 0 28px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-points li::before{
  content:"";width:16px;height:16px;border-radius:50%;flex:0 0 16px;
  background:var(--brand-tint);border:1px solid rgba(14,110,104,.28);
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:7px 2px,2px 7px;background-position:center;background-repeat:no-repeat;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.media{position:relative;overflow:hidden;border-radius:var(--radius-card);background:var(--brand-tint)}
.media img{width:100%;height:100%;object-fit:cover}
.ratio-43{aspect-ratio:4/3}
.ratio-1610{aspect-ratio:16/10}
.hero-figure{margin:0;position:relative}
.hero-figure .media{box-shadow:var(--shadow-2)}
.hero-float{
  position:absolute;left:-14px;bottom:22px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:12px 18px;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:2px;
}
.hero-float strong{font-size:18px;color:var(--brand-deep);font-variant-numeric:tabular-nums}
.hero-float span{font-size:12px;color:var(--ink-3)}

/* ---------- stats band ---------- */
.stats-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:44px 0}
.stat{position:relative;padding-left:22px}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand)}
.stat strong{display:block;font-size:36px;line-height:1.15;color:var(--brand);font-variant-numeric:tabular-nums;font-weight:700}
.stat em{display:block;font-style:normal;font-size:14px;color:var(--ink-2);margin-top:6px}

/* ---------- case grid ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
.filter-btn{
  height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-2);font-size:14px;font-weight:500;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.filter-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.filter-btn.is-active{background:var(--brand);border-color:var(--brand);color:#fff}
.filter-btn.is-active:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(14,110,104,.28)}
.case-card.is-hidden{display:none}
.case-media{display:block;border-radius:0;box-shadow:none}
.case-media img{transition:transform .5s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.case-body h3{font-size:19px;line-height:1.45}
.case-card:hover .case-body h3{color:var(--brand)}
.case-body p{font-size:14px;color:var(--ink-2);line-height:1.75}
.case-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand);margin-top:auto;
}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- method ---------- */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.method-item{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.method-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.method-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--brand-tint);
  color:var(--brand);font-weight:700;font-size:16px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.method-item h3{font-size:19px;margin-bottom:10px}
.method-item p{font-size:14px;color:var(--ink-2)}

/* ---------- delivery list ---------- */
.deliver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.deliver-card{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:22px 20px;transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.deliver-card:hover{border-color:rgba(14,110,104,.3);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.deliver-card h3{font-size:16px;margin-bottom:8px}
.deliver-card p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.deliver-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;background:var(--bg-alt);
  color:var(--brand);margin-bottom:12px;font-weight:700;font-size:14px;
}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:0 22px;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(14,110,104,.3)}
.faq-item[open]{border-color:rgba(14,110,104,.34);box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;cursor:pointer;font-size:17px;font-weight:600;color:var(--ink);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-body{padding:0 0 22px;border-top:1px solid var(--line);margin-top:-1px}
.faq-body p{font-size:15px;color:var(--ink-2);padding-top:16px;max-width:44em}

/* ---------- cta band ---------- */
.cta-wrap{padding:0 0 80px}
.cta-band{
  background:var(--brand-tint);border:1px solid rgba(14,110,104,.16);
  border-radius:20px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;margin-bottom:10px;color:var(--brand-deep)}
.cta-band p{color:var(--ink-2);max-width:34em;font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.76);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12);color:#fff}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:30em}
.footer-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;margin-top:16px;
  border-radius:999px;background:rgba(255,255,255,.1);
  color:#cfe6e2;font-size:12px;letter-spacing:.04em;
}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.site-footer ul li{margin-bottom:10px;font-size:14px;line-height:1.7}
.site-footer ul li a{color:rgba(255,255,255,.74)}
.site-footer ul li a:hover{color:#fff}
.footer-contact li{color:rgba(255,255,255,.7)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.58);
}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .hero-copy h1{font-size:38px}
}
@media (max-width:1024px){
  .nav{flex-wrap:wrap;gap:16px;min-height:64px;padding:0}
  .logo{margin-right:auto}
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;order:5;flex:0 0 100%;flex-direction:column;gap:0;
    padding:6px 0 10px;background:var(--surface);border-top:1px solid var(--line);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 2px;border-bottom:1px solid var(--line);font-size:15px}
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand)}
  .nav-links a:last-child{border-bottom:none}
  .nav-actions{
    display:none;order:6;flex:0 0 100%;flex-direction:column;align-items:stretch;gap:10px;
    margin-left:0;padding:12px 0 20px;background:var(--surface);border-top:1px solid var(--line);
  }
  .nav-actions.open{display:flex}
  .nav-actions .btn{width:100%}
  .nav-quiet{text-align:center;padding:4px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-top:24px}
  .hero-figure{order:-1}
  .hero-copy h1{font-size:34px;max-width:none}
  .page-hero{padding-bottom:48px}
  .stats-grid{grid-template-columns:1fr;gap:20px;padding:32px 0}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .method-grid{grid-template-columns:1fr}
  .deliver-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
  .cta-wrap{padding-bottom:56px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .section-head h2{font-size:24px}
  .hero-copy h1{font-size:30px}
  .hero-copy .lead{font-size:16px}
  .hero-float{left:auto;right:12px;bottom:12px;padding:10px 14px}
  .case-grid{grid-template-columns:1fr}
  .deliver-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-band h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item{padding:0 18px}
  .faq-item summary{font-size:16px;padding:17px 0}
}
@media (max-width:480px){
  .hero-actions .btn{width:100%}
  .stat strong{font-size:30px}
  .btn-lg{height:48px;padding:0 22px}
}