/* roulang page: index */
:root{
  --brand-deep:#073B37;
  --brand:#0B4F4A;
  --brand-soft:#14786E;
  --accent:#FF7A3D;
  --accent-warm:#FFB03A;
  --mist:#F6F8F7;
  --surface:#FFFFFF;
  --mist-2:#EAF2EF;
  --ink:#16211F;
  --ink-2:#5C6B68;
  --ink-3:#8C9A97;
  --line:#E4EAE8;
  --r-lg:24px;
  --r:18px;
  --r-sm:12px;
  --shadow-sm:0 1px 2px rgba(11,79,74,.06),0 1px 3px rgba(11,79,74,.05);
  --shadow-md:0 8px 24px -8px rgba(11,79,74,.14);
  --shadow-lg:0 24px 48px -16px rgba(11,79,74,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--mist);color:var(--ink);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand-soft);text-transform:none}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}
.section-title{position:relative;padding-left:16px;font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.3px}
.section-title::before{content:"";position:absolute;left:0;top:.24em;width:4px;height:1em;background:var(--accent);border-radius:2px}
.lead{font-size:16px;line-height:1.8;color:var(--ink-2)}
.muted{color:var(--ink-3);font-size:13px}
.tnum{font-variant-numeric:tabular-nums}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.2px;color:var(--ink)}
.logo-mark{position:relative;width:24px;height:24px;border-radius:7px;background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);flex:0 0 auto}
.logo-mark::after{content:"";position:absolute;left:5px;top:11px;width:14px;height:2px;border-radius:2px;background:var(--accent);transform:rotate(-32deg)}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .2s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link.active{color:var(--ink)}
.nav-link.active::after{content:"";position:absolute;left:0;bottom:0;width:60%;height:2px;border-radius:2px;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:16px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;border:1px solid transparent;color:var(--ink-2);transition:.2s var(--ease)}
.icon-btn:hover{background:var(--mist-2);color:var(--brand)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:0 11px}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);border-radius:2px}
.drawer{position:fixed;inset:0;z-index:90;background:#fff;display:flex;flex-direction:column;transform:translateX(102%);transition:transform .28s var(--ease);padding:16px 20px 28px;overflow-y:auto}
.drawer.is-open{transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{width:44px;height:44px;border-radius:999px;border:1.5px solid var(--line);background:#fff;font-size:20px;line-height:1;color:var(--ink-2);cursor:pointer}
.drawer-nav{margin-top:16px;border-top:1px solid var(--line)}
.drawer-nav a{display:block;padding:18px 4px;font-size:20px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer-foot{margin-top:auto;padding-top:28px;display:grid;gap:14px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:14px 28px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);background:var(--brand);box-shadow:var(--shadow-sm)}
.btn-grad{background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);color:#fff;box-shadow:var(--shadow-md)}
.btn-grad:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand)}
.btn-ghost:hover{border-color:var(--accent);background:var(--mist-2)}
.btn-ghost:active{background:var(--mist)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.link-cta{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px solid rgba(11,79,74,.35);padding-bottom:2px;transition:.2s var(--ease)}
.link-cta:hover{border-bottom-color:var(--accent);border-bottom-width:2px;color:var(--brand-deep)}
.link-cta .arrow{transition:transform .2s var(--ease)}
.link-cta:hover .arrow{transform:translateX(2px)}
.tag{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;background:var(--mist-2);color:var(--brand);font-size:12px;font-weight:600;line-height:1.6}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--mist);padding:88px 0 96px}
.hero::before{content:"";position:absolute;right:-160px;top:-200px;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(20,120,110,.12),rgba(20,120,110,0) 68%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:32px;align-items:center}
.hero-copy{grid-column:span 6}
.hero-visual{grid-column:span 6}
.hero h1{font-size:clamp(30px,4.6vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.5px}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:38ch}
.hero-meta{margin-top:18px;font-size:14px;color:var(--ink-3)}
.hero-meta span{white-space:nowrap}
.hero-btns{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.hero-card{position:relative;border-radius:var(--r-lg);padding:20px;background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);box-shadow:var(--shadow-lg)}
.hero-card img{position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px}
.hero-card::after{content:"";position:absolute;left:20px;right:20px;top:20px;bottom:20px;border-radius:16px;background:linear-gradient(135deg,rgba(7,59,55,.42),rgba(20,120,110,.16));z-index:2;pointer-events:none}
.badge-float{position:absolute;z-index:3;display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-md);font-size:12px;color:var(--ink-2);white-space:nowrap}
.badge-float b{font-size:15px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.badge-a{right:-10px;bottom:84px}
.badge-b{right:32px;bottom:24px}

/* 状态条 */
.live-strip{display:flex;flex-wrap:wrap;align-items:center;gap:14px 40px;padding:18px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm)}
.live-item{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2)}
.live-item strong{font-size:16px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 0 rgba(255,122,61,.55);animation:livePulse 2.4s infinite}
@keyframes livePulse{70%{box-shadow:0 0 0 10px rgba(255,122,61,0)}100%{box-shadow:0 0 0 0 rgba(255,122,61,0)}}

/* 痛点 */
.pain-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:32px}
.pain-left{grid-column:span 4}
.pain-right{grid-column:span 8}
.pain-list{border-top:1px solid var(--line)}
.pain-item{display:flex;gap:14px;align-items:flex-start;padding:22px 4px;border-bottom:1px solid var(--line);font-size:18px;font-weight:500;color:var(--ink);transition:background-color .2s var(--ease)}
.pain-item:hover{background:var(--mist-2)}
.pain-item i{flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:12px}

/* 方案卡 */
.plan-main{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:40px;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.plan-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.plan-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:16px}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm);padding:32px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D6E2DE}
.plan-card h3{font-size:21px;font-weight:600;line-height:1.45;margin-top:18px}
.plan-card p{margin-top:12px;font-size:15px;color:var(--ink-2)}
.plan-icon{width:52px;height:52px;border-radius:16px;display:inline-flex;align-items:center;justify-content:center;background:var(--mist-2);color:var(--brand)}
.plan-icon svg{width:26px;height:26px;stroke-width:1.5}

/* 数据带 */
.stat-band{background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);padding:64px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat-item{padding:8px 28px;border-left:1px solid rgba(255,255,255,.18)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(34px,4vw,52px);font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums}
.stat-num small{font-size:16px;font-weight:600;margin-left:6px;color:rgba(255,255,255,.8)}
.stat-label{margin-top:10px;font-size:13px;color:rgba(255,255,255,.75);line-height:1.7}
.stat-chip{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.14);color:rgba(255,255,255,.88);font-size:12px;margin-bottom:12px}

/* 最新信息 */
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.post-cover{aspect-ratio:16/9;background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);position:relative}
.post-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 22%,rgba(255,176,58,.28),rgba(255,176,58,0) 60%)}
.post-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.post-title{margin-top:12px;font-size:18px;font-weight:600;line-height:1.55;transition:color .2s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card:hover .post-title{color:var(--brand)}
.post-sum{margin-top:10px;font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r);color:var(--ink-2);font-size:15px}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;font-size:17px;font-weight:600;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-mark{position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:999px;border:1.5px solid var(--brand);transition:background-color .2s var(--ease),border-color .2s var(--ease)}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:.2s var(--ease)}
.faq-mark::before{left:7px;top:13px;width:12px;height:1.5px}
.faq-mark::after{left:12.25px;top:8px;width:1.5px;height:12px}
.faq-item[open] .faq-mark{background:var(--accent);border-color:var(--accent)}
.faq-item[open] .faq-mark::before,.faq-item[open] .faq-mark::after{background:#fff}
.faq-item[open] .faq-mark::after{transform:scaleY(0)}
.faq-body{padding:0 44px 24px 0;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* 表单 */
.form-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:32px;align-items:start}
.form-left{grid-column:span 5}
.form-right{grid-column:span 7}
.point-list li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;color:var(--ink-2)}
.point-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:var(--accent-warm)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:36px}
.field-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field{width:100%;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;padding:12px 14px;font-size:15px;line-height:1.6;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,79,74,.12)}
textarea.field{min-height:132px;resize:vertical}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);line-height:1.7}
.check-row input{margin-top:5px;width:16px;height:16px;accent-color:var(--brand)}
.field-note{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--ink-3);margin-top:18px}

/* 隐私小节 */
.privacy-note{border-top:1px solid var(--line);padding-top:28px}
.privacy-note p{font-size:14px;line-height:1.85;color:var(--ink-2)}
.privacy-note p + p{margin-top:10px}

/* CTA 条 */
.cta-band{border-radius:var(--r-lg);padding:56px;background:linear-gradient(135deg,#073B37,#0B4F4A 55%,#14786E);box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;color:#fff;line-height:1.35;letter-spacing:-.3px}
.cta-band p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.78);max-width:52ch}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:104px;border-top:1px solid rgba(255,255,255,.14)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:34ch}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-list li{margin-bottom:12px;font-size:14px}
.footer-list a{color:rgba(255,255,255,.68);transition:color .2s var(--ease)}
.footer-list a:hover{color:#fff}
.footer-bottom{margin-top:56px;padding-top:22px;border-top:1px solid rgba(255,255,255,.18);display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}
.footer-bottom a{color:rgba(255,255,255,.78)}
.footer-bottom a:hover{color:#fff}

/* 返回顶部 */
.to-top{position:fixed;right:20px;bottom:20px;z-index:70;width:46px;height:46px;border-radius:999px;border:0;background:var(--brand);color:#fff;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow-md);cursor:pointer;transition:.2s var(--ease)}
.to-top:hover{background:var(--brand-soft);transform:translateY(-2px)}
.to-top.show{display:inline-flex}

/* 浮层 */
.modal{position:fixed;inset:0;z-index:100;display:none}
.modal.is-open{display:block}
.modal-mask{position:absolute;inset:0;background:rgba(7,59,55,.55);backdrop-filter:blur(4px)}
.modal-card{position:relative;max-width:540px;margin:7vh auto 0;background:#fff;border-radius:var(--r-lg);box-shadow:var(--shadow-lg);padding:34px}
.modal-close{position:absolute;right:18px;top:18px;width:40px;height:40px;border-radius:999px;border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;transition:.2s var(--ease)}
.modal-close:hover{border-color:var(--accent);color:var(--accent)}
.modal-card h3{font-size:22px;font-weight:700;line-height:1.4}

@media (max-width:1279px){
  .section{padding:88px 0}
}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-actions .icon-btn{display:none}
  .nav-toggle{display:flex}
  .hero{padding:64px 0 72px}
  .hero-copy,.hero-visual{grid-column:span 12}
  .hero-visual{order:2}
  .badge-a{right:12px;bottom:76px}
  .badge-b{right:12px;bottom:20px}
  .pain-left,.pain-right{grid-column:span 12}
  .plan-main{grid-template-columns:1fr;gap:28px;padding:32px}
  .form-left,.form-right{grid-column:span 12}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px}
  .stat-item:nth-child(3){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .nav-inner{height:64px}
  .live-strip{gap:12px 24px;padding:16px 20px}
  .form-card{padding:24px}
  .modal-card{margin:0;position:absolute;left:0;right:0;bottom:0;top:auto;border-radius:24px 24px 0 0;padding:26px 20px 30px;max-height:88vh;overflow-y:auto}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-btns .btn{width:100%}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-item{padding:8px 16px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .post-body{padding:18px}
  .pain-item{font-size:17px}
  .badge-float{font-size:11px;padding:8px 12px}
}

/* roulang page: article */
:root{
  --brand-deep:#073B37;
  --brand:#0B4F4A;
  --brand-soft:#14786E;
  --accent:#FF7A3D;
  --accent-warm:#FFB03A;
  --mist:#F6F8F7;
  --mist-2:#EAF2EF;
  --surface:#FFFFFF;
  --ink:#16211F;
  --ink-2:#5C6B68;
  --ink-3:#8C9A97;
  --line:#E4EAE8;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(11,79,74,.06),0 1px 3px rgba(11,79,74,.05);
  --shadow-md:0 8px 24px -8px rgba(11,79,74,.14);
  --shadow-lg:0 24px 48px -16px rgba(11,79,74,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --grad-brand:linear-gradient(135deg,#073B37 0%,#0B4F4A 50%,#14786E 100%);
  --grad-accent:linear-gradient(135deg,#FF7A3D 0%,#FFB03A 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--mist);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:640px){.container{padding:0 20px;}}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
.logo-mark{
  width:24px;height:24px;border-radius:7px;background:var(--grad-brand);
  position:relative;flex:none;
}
.logo-mark::after{
  content:"";position:absolute;left:6px;top:6px;width:12px;height:12px;
  border-top:2px solid rgba(255,255,255,.95);
  border-right:2px solid rgba(255,255,255,.95);
  transform:rotate(45deg);
  border-radius:2px;
}
.nav-links{display:flex;align-items:center;gap:36px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color 200ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--accent);transition:width 200ms var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:60%;}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{width:60%;}
.nav-actions{display:flex;align-items:center;gap:16px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;color:var(--ink-2);
  transition:color 200ms var(--ease),background 200ms var(--ease);
}
.icon-btn:hover{color:var(--brand);background:var(--mist-2);}
.nav-toggle{
  display:none;width:44px;height:44px;border:none;background:transparent;
  padding:11px 10px;border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;height:1.5px;background:var(--ink);margin:4px 0;border-radius:2px;}
.nav-toggle:hover span{background:var(--brand);}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;padding:20px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),transform 220ms var(--ease),visibility 220ms;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:64px;}
.drawer-close{
  width:44px;height:44px;border-radius:999px;border:1.5px solid var(--line);
  background:#fff;font-size:22px;line-height:1;color:var(--ink-2);cursor:pointer;
  transition:border-color 200ms var(--ease),color 200ms var(--ease);
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-nav{margin-top:8px;border-top:1px solid var(--line);}
.drawer-nav a{
  display:block;font-size:20px;font-weight:500;color:var(--ink);
  padding:18px 4px;border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot p{margin-top:12px;font-size:12.5px;line-height:1.7;color:var(--ink-3);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-weight:600;font-size:15px;
  padding:14px 28px;border-radius:12px;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),background 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:999px;}
.btn-block{width:100%;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--accent);background:var(--mist-2);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-deep);}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;
  font-size:15px;border-bottom:1px solid rgba(11,79,74,.45);padding-bottom:2px;
  transition:border-color 200ms var(--ease),color 200ms var(--ease);
}
.link-cta svg{transition:transform 200ms var(--ease);}
.link-cta:hover{border-bottom-width:2px;border-color:var(--accent);color:var(--brand-soft);}
.link-cta:hover svg{transform:translateX(2px);}

/* ---------- 文章头部 ---------- */
.article-head{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:32px 0 40px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-2);transition:color 200ms var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--ink-3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:clamp(26px,3.4vw,40px);font-weight:800;line-height:1.3;
  letter-spacing:-.5px;color:var(--ink);max-width:22ch;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:22px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.article-meta .dot{color:var(--line);}
.tag-chip{
  display:inline-flex;align-items:center;background:var(--mist-2);color:var(--brand);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
}
.cover-wrap{margin-top:28px;border-radius:20px;overflow:hidden;position:relative;background:linear-gradient(135deg,#073B37,#14786E);}
.cover-wrap img{width:100%;aspect-ratio:21/9;object-fit:cover;border-radius:20px;}
@media (max-width:768px){.cover-wrap img{aspect-ratio:16/9;}}

/* ---------- 正文布局 ---------- */
.article-section{padding:56px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px;}
.article-panel{
  background:var(--surface);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:40px;
}
@media (max-width:640px){.article-panel{padding:24px;border-radius:var(--radius-md);}}

.article-body{font-size:16.5px;line-height:1.9;color:#2A3835;max-width:78ch;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 22px;}
.article-body p:first-of-type{font-size:17.5px;color:var(--ink-2);}
.article-body h2{
  font-size:clamp(22px,2.4vw,24px);font-weight:700;line-height:1.45;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--accent);
}
.article-body h3{font-size:18.5px;font-weight:600;color:var(--ink);margin:32px 0 12px;line-height:1.5;}
.article-body h4{font-size:16.5px;font-weight:600;color:var(--ink);margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;}
.article-body blockquote{
  background:var(--mist-2);border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;padding:16px 20px;margin:0 0 24px;color:var(--ink-2);
}
.article-body img{border-radius:16px;margin:8px 0 6px;}
.article-body figure{margin:0 0 24px;}
.article-body figcaption,.article-body img + em{
  display:block;font-size:13px;color:var(--ink-3);text-align:center;font-style:normal;margin-top:8px;
}
.article-body table{
  width:100%;border:1px solid var(--line);border-radius:12px;overflow:hidden;
  border-collapse:separate;border-spacing:0;margin:0 0 24px;font-size:15px;
}
.article-body th{background:var(--mist-2);font-weight:600;color:var(--ink);text-align:left;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);}
.article-body tr:last-child td{border-bottom:none;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(11,79,74,.35);transition:border-color 200ms var(--ease);}
.article-body a:hover{border-color:var(--accent);}
.article-body code{background:#F1F4F3;border-radius:6px;padding:2px 6px;font-size:14px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;}
.article-body pre{background:#F1F4F3;border-radius:12px;padding:16px;overflow:auto;margin:0 0 24px;}
.article-body pre code{background:none;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

.article-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.article-foot .back-links{display:flex;align-items:center;gap:24px;flex-wrap:wrap;}

.empty-state{
  text-align:center;padding:56px 20px;
}
.empty-state .icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:999px;
  background:var(--mist-2);display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);padding:24px;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease);
}
.side-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.side-title{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.side-eyebrow{
  display:inline-block;font-size:12px;font-weight:600;color:#fff;
  background:var(--grad-accent);border-radius:999px;padding:4px 10px;margin-bottom:12px;
}
.side-text{font-size:14px;color:var(--ink-2);line-height:1.75;margin-bottom:16px;}
.side-links li + li{border-top:1px solid var(--line);}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;font-size:15px;color:var(--ink-2);transition:color 200ms var(--ease);
}
.side-links a:hover{color:var(--brand);}
.side-links a svg{flex:none;color:var(--ink-3);transition:transform 200ms var(--ease),color 200ms var(--ease);}
.side-links a:hover svg{transform:translateX(3px);color:var(--accent);}
.side-steps li{
  display:flex;gap:12px;font-size:14px;color:var(--ink-2);
  padding:12px 0;border-bottom:1px solid var(--line);line-height:1.7;
}
.side-steps li:last-child{border-bottom:none;padding-bottom:0;}
.side-steps span{
  flex:none;width:22px;height:22px;border-radius:999px;background:var(--mist-2);
  color:var(--brand);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,780px) 320px;align-items:start;}
  .article-side{position:sticky;top:96px;}
}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  background:var(--grad-brand);border-radius:var(--radius-lg);
  padding:48px 56px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;right:-60px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,58,.22),transparent 68%);
}
.cta-card h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.3px;}
.cta-card p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.78);max-width:52ch;}
.cta-card .btn{position:relative;flex:none;}

/* ---------- 隐私说明 ---------- */
.privacy-note{
  border-top:1px solid var(--line);
  padding:32px 0 56px;
}
.privacy-note h2{font-size:18px;font-weight:700;margin-bottom:14px;}
.privacy-note p{font-size:13.5px;line-height:1.85;color:var(--ink-2);max-width:86ch;}
.privacy-note p + p{margin-top:10px;}

/* ---------- 浮层 ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;display:flex;align-items:center;justify-content:center;
  background:rgba(7,59,55,.55);backdrop-filter:blur(4px);
  padding:20px;opacity:0;visibility:hidden;transition:opacity 220ms var(--ease),visibility 220ms;
}
.modal-mask.open{opacity:1;visibility:visible;}
.modal-card{
  position:relative;width:min(540px,100%);max-height:90vh;overflow:auto;
  background:#fff;border-radius:var(--radius-lg);padding:32px;
  box-shadow:var(--shadow-lg);transform:translateY(10px);transition:transform 220ms var(--ease);
}
.modal-mask.open .modal-card{transform:translateY(0);}
.modal-close{
  position:absolute;right:18px;top:18px;width:40px;height:40px;border-radius:999px;
  border:1.5px solid var(--line);background:#fff;color:var(--ink-2);font-size:20px;
  line-height:1;cursor:pointer;transition:border-color 200ms var(--ease),color 200ms var(--ease);
}
.modal-close:hover{border-color:var(--accent);color:var(--accent);}
.modal-card h2{font-size:21px;font-weight:700;padding-right:40px;}
.modal-card > p{margin-top:8px;font-size:14px;color:var(--ink-2);}
.lead-form{margin-top:22px;display:flex;flex-direction:column;gap:16px;}
.lead-form label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);}
.lead-form input,.lead-form select,.lead-form textarea{
  width:100%;margin-top:8px;padding:12px 14px;border:1px solid var(--line);
  border-radius:12px;background:#fff;color:var(--ink);transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.lead-form textarea{min-height:120px;resize:vertical;line-height:1.7;}
.lead-form input::placeholder,.lead-form textarea::placeholder{color:var(--ink-3);}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,120,110,.16);
}
.form-tip{font-size:12.5px;color:var(--ink-3);line-height:1.7;}
.form-msg{font-size:13.5px;color:var(--brand);background:var(--mist-2);border-radius:10px;padding:10px 14px;}
@media (max-width:640px){
  .modal-mask{align-items:flex-end;padding:0;}
  .modal-card{width:100%;border-radius:24px 24px 0 0;padding:28px 22px 32px;}
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:999px;
  border:none;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  cursor:pointer;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;
  transition:opacity 220ms var(--ease),visibility 220ms,background 200ms var(--ease),transform 200ms var(--ease);
}
.back-top.show{opacity:1;visibility:visible;}
.back-top:hover{background:var(--brand-soft);transform:translateY(-2px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);color:#fff;border-top:1px solid rgba(255,255,255,.14);
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:36ch;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.3px;}
.footer-list li + li{margin-top:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.62);transition:color 200ms var(--ease);}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.62);transition:color 200ms var(--ease);}
.footer-bottom a:hover{color:#fff;}

@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .article-section{padding:40px 0 64px;}
}
@media (max-width:640px){
  .nav-actions .btn-sm{display:none;}
  .icon-btn{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}

/* roulang page: category1 */
:root{
  --brand-deep:#073B37;
  --brand:#0B4F4A;
  --brand-soft:#14786E;
  --accent:#FF7A3D;
  --accent-warm:#FFB03A;
  --mist:#F6F8F7;
  --mist-2:#EAF2EF;
  --surface:#FFFFFF;
  --ink:#16211F;
  --ink-2:#5C6B68;
  --ink-3:#8C9A97;
  --line:#E4EAE8;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(11,79,74,.06),0 1px 3px rgba(11,79,74,.05);
  --shadow-md:0 8px 24px -8px rgba(11,79,74,.14);
  --shadow-lg:0 24px 48px -16px rgba(11,79,74,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --grad:linear-gradient(135deg,#073B37 0%,#0B4F4A 50%,#14786E 100%);
  --grad-badge:linear-gradient(135deg,#FF7A3D 0%,#FFB03A 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.bg-glow{
  position:absolute;pointer-events:none;
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(20,120,110,.12),rgba(20,120,110,0) 70%);
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.2px;color:var(--ink);}
.logo-mark{
  position:relative;width:24px;height:24px;border-radius:7px;
  background:var(--grad);flex:0 0 24px;
}
.logo-mark::before{
  content:"";position:absolute;left:5px;top:13px;width:13px;height:2px;border-radius:2px;
  background:rgba(255,255,255,.85);transform:rotate(-38deg);
}
.logo-mark::after{
  content:"";position:absolute;left:8px;top:6px;width:7px;height:7px;
  border-top:2px solid #fff;border-right:2px solid #fff;transform:rotate(7deg);
}
.nav-links{display:flex;align-items:center;gap:36px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link.active{color:var(--ink);}
.nav-link.active::after{
  content:"";position:absolute;left:0;bottom:-3px;width:60%;height:2px;
  border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;
  align-items:center;justify-content:center;color:var(--ink-2);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.icon-btn:hover{background:var(--mist-2);color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  border-radius:12px;transition:background .2s var(--ease);
}
.nav-toggle:hover{background:var(--mist-2);}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);border-radius:2px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;border-radius:12px;
  padding:14px 28px;border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--accent);background:var(--mist-2);}
.btn-on-grad{background:#fff;color:var(--brand-deep);}
.btn-on-grad:hover{background:#FFF3EC;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:999px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px solid rgba(11,79,74,.45);padding-bottom:2px;transition:color .2s var(--ease),border-color .2s var(--ease);}
.text-link:hover{color:var(--accent);border-bottom-width:2px;border-color:var(--accent);}
.text-link svg{transition:transform .2s var(--ease);}
.text-link:hover svg{transform:translateX(2px);}
.tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;color:var(--brand);
  background:var(--mist-2);border-radius:999px;padding:4px 10px;letter-spacing:.2px;
}

/* ---------- page hero band ---------- */
.page-hero{position:relative;padding:32px 0 72px;overflow:hidden;}
.page-hero .bg-glow{top:-220px;right:-140px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-3);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9D4D1;}
.breadcrumb .current{color:var(--ink-3);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-band{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);padding:48px;overflow:hidden;
}
.hero-band h1{
  font-size:clamp(28px,3.8vw,44px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  margin:16px 0 18px;color:var(--ink);
}
.hero-band .lead{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:34em;}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);margin-top:20px;}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:28px;}
.hero-band-media{
  position:relative;min-height:290px;border-radius:var(--radius-md);overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;box-shadow:var(--shadow-sm);
}
.hero-band-media::after{
  content:"";position:absolute;inset:0;
  background:var(--grad);opacity:.3;
}
.hero-band-media .media-note{
  position:absolute;left:18px;bottom:18px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.6);
  border-radius:999px;padding:8px 14px;font-size:13px;font-weight:600;color:var(--brand-deep);
  box-shadow:var(--shadow-sm);
}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,122,61,.18);}

/* ---------- section shell ---------- */
.section{padding:80px 0;}
.section-head{max-width:760px;}
.section-head h2{
  font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.3px;
  margin-bottom:14px;
}
.section-head .sub{font-size:16px;color:var(--ink-2);}
.h2-bar{display:inline-block;width:44px;height:4px;border-radius:999px;background:var(--grad-badge);margin-bottom:16px;}

/* ---------- feature blocks ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.feature + .feature{margin-top:88px;}
.feature-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);}
.feature-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.feature-media::after{
  content:"";position:absolute;inset:0;background:var(--grad);opacity:.12;pointer-events:none;
}
.feature-media .feature-badge{
  position:absolute;left:18px;top:18px;z-index:2;
  background:rgba(255,255,255,.95);border-radius:999px;padding:6px 14px;
  font-size:12px;font-weight:700;color:var(--brand-deep);box-shadow:var(--shadow-sm);
}
.feature-text h2{
  font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;letter-spacing:-.3px;margin-bottom:16px;
}
.feature-text p{font-size:16px;color:var(--ink-2);margin-bottom:14px;}
.feature-text p strong{color:var(--ink);font-weight:600;}
.feature-list{margin:20px 0 24px;}
.feature-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);
  margin-bottom:10px;
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}

/* ---------- stat band ---------- */
.stat-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:var(--grad);color:#fff;
  padding:56px 40px;display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-band .band-glow{
  position:absolute;right:-80px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,58,.22),rgba(255,176,58,0) 70%);
  pointer-events:none;
}
.stat-item{padding:0 26px;border-left:1px solid rgba(255,255,255,.18);position:relative;z-index:1;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.14);border-radius:999px;padding:3px 10px;margin-bottom:12px;
}
.stat-num{
  font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-num .unit{font-size:15px;font-weight:600;margin-left:4px;opacity:.85;}
.stat-label{font-size:13px;color:rgba(255,255,255,.75);margin-top:8px;line-height:1.7;}

/* ---------- checklist ---------- */
.checklist{max-width:900px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:12px 36px;}
.check-item{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);}
.check-item:last-child{border-bottom:0;}
.check-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:999px;
  background:var(--grad-badge);color:#fff;font-size:14px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
  margin-top:2px;
}
.check-item h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.check-item p{font-size:15px;color:var(--ink-2);}

/* ---------- submit ---------- */
.submit-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
.submit-side h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.32;margin-bottom:16px;letter-spacing:-.3px;}
.submit-side p{color:var(--ink-2);font-size:16px;margin-bottom:18px;}
.submit-side .feature-list li{font-size:15px;}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);padding:36px;
}
.form-card h3{font-size:20px;font-weight:600;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--ink-3);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--ink);}
.field .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  font-family:inherit;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,79,74,.12);
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);margin:6px 0 22px;}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);}
.check-row a{color:var(--brand);border-bottom:1px solid rgba(11,79,74,.4);}
.check-row a:hover{color:var(--accent);border-color:var(--accent);}
.w-full{width:100%;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);background:var(--grad);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;
}
.cta-band .band-glow{
  position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,61,.22),rgba(255,122,61,0) 70%);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;margin-bottom:10px;position:relative;z-index:1;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.78);max-width:44em;position:relative;z-index:1;}
.cta-band .cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;background:var(--brand-deep);color:rgba(255,255,255,.62);
  border-top:1px solid rgba(255,255,255,.14);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.9;max-width:30em;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-list li{margin-bottom:6px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.62);transition:color .2s var(--ease);}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;
}
.footer-bottom a{color:rgba(255,255,255,.78);}
.footer-bottom a:hover{color:#fff;}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:80;background:#fff;
  flex-direction:column;padding:20px 20px 28px;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:999px;border:1.5px solid var(--line);background:#fff;
  font-size:20px;line-height:1;color:var(--ink-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-links{display:flex;flex-direction:column;margin-top:12px;flex:1;}
.drawer-links a{
  font-size:20px;font-weight:600;color:var(--ink);padding:18px 0;border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);}
.drawer-bottom{padding-top:20px;}
.drawer-note{font-size:13px;color:var(--ink-3);margin-top:12px;}

/* ---------- lead modal ---------- */
.lead-modal{
  position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px;
}
.lead-modal.is-open{display:flex;}
.lead-mask{position:absolute;inset:0;background:rgba(7,59,55,.55);backdrop-filter:blur(4px);}
.lead-card{
  position:relative;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
  width:100%;max-width:540px;max-height:88vh;overflow:auto;padding:32px;
}
.lead-card h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.lead-card .form-note{font-size:14px;color:var(--ink-3);margin-bottom:20px;}
.lead-close{
  position:absolute;right:16px;top:16px;width:38px;height:38px;border-radius:999px;
  border:1.5px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;font-size:18px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
}
.lead-close:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-actions .icon-btn{display:none;}
  .nav-toggle{display:flex;}
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .hero-band{grid-template-columns:1fr;gap:32px;padding:32px;}
  .hero-band-media{min-height:240px;order:2;}
  .feature{grid-template-columns:1fr;gap:28px;}
  .feature + .feature{margin-top:64px;}
  .feature.reverse .feature-media{order:2;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:34px 0;padding:44px 28px;}
  .stat-item{padding:0 20px;}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .submit-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 28px;}
}
@media (max-width:639px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .nav-inner{height:64px;}
  .hero-band{padding:24px;border-radius:20px;}
  .hero-band-media{min-height:200px;}
  .hero-actions{gap:14px;}
  .btn{padding:13px 22px;}
  .stat-band{grid-template-columns:repeat(2,1fr);gap:28px 0;padding:32px 22px;}
  .stat-item{padding:0 14px;}
  .stat-num{font-size:30px;}
  .checklist{padding:6px 20px;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;padding:44px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .lead-modal{align-items:flex-end;padding:0;}
  .lead-card{border-radius:24px 24px 0 0;max-width:100%;max-height:92vh;padding:26px 20px;}
}

/* roulang page: category2 */
:root{
  --brand-deep:#073B37;
  --brand:#0B4F4A;
  --brand-soft:#14786E;
  --accent:#FF7A3D;
  --accent-warm:#FFB03A;
  --mist:#F6F8F7;
  --surface:#FFFFFF;
  --mist-2:#EAF2EF;
  --ink:#16211F;
  --ink-2:#5C6B68;
  --ink-3:#8C9A97;
  --line:#E4EAE8;
  --radius-lg:24px;
  --radius-md:18px;
  --radius-sm:12px;
  --shadow-sm:0 1px 2px rgba(11,79,74,.06),0 1px 3px rgba(11,79,74,.05);
  --shadow-md:0 8px 24px -8px rgba(11,79,74,.14);
  --shadow-lg:0 24px 48px -16px rgba(11,79,74,.20);
  --ease:cubic-bezier(.2,.7,.3,1);
  --grad-brand:linear-gradient(135deg,#073B37 0%,#0B4F4A 50%,#14786E 100%);
  --grad-badge:linear-gradient(135deg,#FF7A3D 0%,#FFB03A 100%);
}
*{box-sizing:border-box;}
body{
  margin:0;
  background:var(--mist);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body img{display:block;max-width:100%;height:auto;}
body a{color:inherit;text-decoration:none;}
body ul,body ol{margin:0;padding:0;list-style:none;}
body button{font-family:inherit;}
body h1,body h2,body h3,body p{margin:0;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
body .container{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);padding:14px 28px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),box-shadow 200ms var(--ease),transform 200ms var(--ease),border-color 200ms var(--ease);
}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--brand);}
.btn-ghost:hover{border-color:var(--accent);background:var(--mist-2);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:var(--shadow-md);}
.btn-light:hover{background:#F3F7F5;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.link-cta{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid var(--brand);padding-bottom:2px;
  transition:color 200ms var(--ease),border-color 200ms var(--ease);
}
.link-cta:hover{color:var(--accent);border-bottom-width:2px;border-color:var(--accent);}
.link-cta:hover .arw{transform:translateX(2px);}
.link-cta .arw{transition:transform 200ms var(--ease);}
.link-cta:focus-visible,.nav-link:focus-visible,.icon-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
}
.site-header .nav-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.2px;}
.logo-mark{
  width:24px;height:24px;border-radius:7px;background:var(--grad-brand);position:relative;flex:none;
  box-shadow:0 2px 6px rgba(11,79,74,.28);
}
.logo-mark::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(135deg,transparent 42%,rgba(255,255,255,.92) 42%,rgba(255,255,255,.92) 50%,transparent 50%),
    linear-gradient(135deg,transparent 60%,rgba(255,176,58,.95) 60%,rgba(255,176,58,.95) 66%,transparent 66%);
  border-radius:7px;
}
.nav-links{display:flex;align-items:center;gap:36px;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color 200ms var(--ease);}
.nav-link:hover{color:var(--ink);}
.nav-link.active{color:var(--ink);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-2px;
  width:60%;height:2px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color 200ms var(--ease),border-color 200ms var(--ease),color 200ms var(--ease);
}
.icon-btn:hover{background:var(--mist-2);border-color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--ink);border-radius:2px;}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;transform:translateY(-100%);
  transition:transform 260ms var(--ease);display:flex;flex-direction:column;padding:20px 20px 32px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--brand);background:#fff;color:var(--brand);
  font-size:20px;line-height:1;cursor:pointer;
}
.drawer-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  font-size:20px;font-weight:500;color:var(--ink);padding:18px 2px;border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px;}
.drawer-foot p{font-size:13px;color:var(--ink-3);line-height:1.7;}

/* ---------- 页头带 ---------- */
.page-head{padding:36px 0 0;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px;}
.breadcrumb a{color:var(--ink-3);transition:color 200ms var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--ink-3);opacity:.7;}
.breadcrumb .cur{color:var(--ink-3);}
.head-panel{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;background-color:var(--brand-deep);
  min-height:300px;padding:52px 44px 46px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff;
  box-shadow:var(--shadow-lg);
}
.head-panel .bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.55;
}
.head-panel .veil{
  position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(7,59,55,.94) 0%,rgba(11,79,74,.80) 55%,rgba(20,120,110,.66) 100%);
}
.head-panel > *{position:relative;z-index:2;}
.head-panel h1{
  font-size:clamp(28px,3.8vw,44px);font-weight:800;line-height:1.2;letter-spacing:-.5px;max-width:760px;
}
.head-panel .lead{margin-top:18px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.86);max-width:700px;}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.head-tags .tag{
  font-size:12px;padding:5px 12px;border-radius:999px;color:#fff;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
}

/* ---------- 实时状态条 ---------- */
.live-bar{
  margin-top:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);padding:20px 28px;
  display:grid;grid-template-columns:auto repeat(3,1fr);gap:24px;align-items:center;
}
.live-label{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);position:relative;flex:none;}
.dot::after{
  content:"";position:absolute;inset:-5px;border-radius:50%;border:1px solid rgba(255,122,61,.55);
  animation:pulse 2s var(--ease) infinite;
}
@keyframes pulse{
  0%{transform:scale(.6);opacity:.9;}
  70%{transform:scale(1.25);opacity:0;}
  100%{transform:scale(1.25);opacity:0;}
}
.live-item{border-left:1px solid var(--line);padding-left:24px;}
.live-item:first-of-type{border-left:0;padding-left:0;}
.live-num{font-size:24px;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.5px;}
.live-num i{font-style:normal;font-size:13px;font-weight:600;color:var(--ink-3);margin-left:4px;}
.live-cap{font-size:13px;color:var(--ink-3);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0 0;}
.section:last-of-type{padding-bottom:0;}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;letter-spacing:-.4px;}
.sec-head p{margin-top:14px;font-size:15px;color:var(--ink-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent);}

/* ---------- 横向大卡 ---------- */
.feature-card{
  position:relative;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);
  padding:44px;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;overflow:hidden;
}
.feature-card .corner-badge{
  position:absolute;top:24px;right:24px;z-index:3;
  background:var(--grad-badge);color:#fff;font-size:12px;font-weight:700;
  padding:6px 14px;border-radius:999px;box-shadow:0 6px 16px -6px rgba(255,122,61,.7);
}
.feature-card h3{font-size:clamp(21px,2.2vw,27px);font-weight:700;line-height:1.4;letter-spacing:-.3px;margin-bottom:16px;}
.feature-card p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.feature-card .mini-list{margin:22px 0 26px;display:flex;flex-direction:column;gap:10px;}
.feature-card .mini-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);align-items:flex-start;}
.feature-card .mini-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px;flex:none;
}
.feature-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);}
.feature-media img{width:100%;height:320px;object-fit:cover;}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(7,59,55,.42),rgba(20,120,110,.18));
}

/* ---------- 卡片矩阵 ---------- */
.mat-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.mat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:30px 30px 26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform 200ms var(--ease),box-shadow 200ms var(--ease),border-color 200ms var(--ease);
}
.mat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D8E4E0;}
.mat-icon{
  width:48px;height:48px;border-radius:14px;background:var(--mist-2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.mat-card h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.mat-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-bottom:20px;}
.mat-card .link-cta{margin-top:auto;align-self:flex-start;}

/* ---------- 结论分级 ---------- */
.grade{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;}
.grade-intro p{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.grade-list li{
  display:flex;gap:20px;padding:20px 0;border-top:1px solid var(--line);
}
.grade-list li:last-child{border-bottom:1px solid var(--line);}
.grade-name{
  flex:none;width:118px;font-size:15px;font-weight:700;color:var(--brand-deep);display:flex;align-items:flex-start;gap:8px;
}
.grade-name::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:9px;flex:none;
}
.grade-name.warn::before{background:var(--accent-warm);}
.grade-name.stop::before{background:#E0552B;}
.grade-name.wait::before{background:var(--brand-soft);}
.grade-desc{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:1100px;}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-col .faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  background:none;border:0;padding:20px 0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--ink);
  transition:color 200ms var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.faq-ic{
  width:26px;height:26px;border-radius:50%;border:1.5px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:none;font-size:15px;line-height:1;
  transition:background-color 200ms var(--ease),color 200ms var(--ease),border-color 200ms var(--ease);
}
.faq-item.open .faq-ic{background:var(--accent);border-color:var(--accent);color:#fff;}
.faq-a{display:none;padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}
.faq-item.open .faq-a{display:block;}

/* ---------- 隐私说明 ---------- */
.privacy-block{border-top:1px solid var(--line);padding-top:34px;}
.privacy-block h2{font-size:20px;font-weight:700;margin-bottom:14px;}
.privacy-block p{font-size:13.5px;color:var(--ink-2);line-height:1.85;margin-bottom:10px;}
.privacy-inline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);}
.privacy-inline svg{flex:none;margin-top:3px;color:var(--brand);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);background:var(--grad-brand);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;color:#fff;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:"";position:absolute;top:-120px;right:-80px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,58,.22),transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;bottom:-140px;left:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.10),transparent 70%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;letter-spacing:-.4px;max-width:640px;}
.cta-band p{margin-top:12px;font-size:14.5px;color:rgba(255,255,255,.78);max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;background:var(--brand-deep);color:#fff;
  border-top:1px solid rgba(255,255,255,.14);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list li{margin-bottom:12px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.62);transition:color 200ms var(--ease);}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.62);transition:color 200ms var(--ease);}
.footer-bottom a:hover{color:#fff;}

/* ---------- 悬浮返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;
  background:var(--brand);color:#fff;border:0;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);cursor:pointer;z-index:40;opacity:0;visibility:hidden;
  transition:opacity 200ms var(--ease),visibility 200ms var(--ease),background-color 200ms var(--ease),transform 200ms var(--ease);
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{background:var(--brand-soft);transform:translateY(-2px);}
.to-top:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 浮层 ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:100;background:rgba(7,59,55,.55);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.modal-mask.open{display:flex;}
.modal-card{
  width:100%;max-width:540px;background:#fff;border-radius:var(--radius-lg);padding:36px;
  box-shadow:var(--shadow-lg);position:relative;max-height:90vh;overflow-y:auto;
}
.modal-close{
  position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;
  border:1.5px solid var(--brand);background:#fff;color:var(--brand);font-size:18px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:var(--mist-2);}
.modal-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.modal-card h2{font-size:22px;font-weight:700;margin-bottom:8px;}
.modal-card .modal-sub{font-size:14px;color:var(--ink-2);margin-bottom:22px;line-height:1.75;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;
  padding:12px 14px;font-size:15px;line-height:1.6;color:var(--ink);font-family:inherit;
  transition:border-color 200ms var(--ease),box-shadow 200ms var(--ease);
}
.field textarea{min-height:110px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(11,79,74,.12);
}
.check-row{
  display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-3);line-height:1.7;margin:4px 0 20px;
}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand);flex:none;}
.check-row a{color:var(--brand);border-bottom:1px solid rgba(11,79,74,.35);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .feature-card{grid-template-columns:1fr;gap:28px;padding:32px;}
  .feature-media img{height:260px;}
  .grade{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 36px;}
  .live-bar{grid-template-columns:1fr 1fr;gap:18px 24px;padding:20px 22px;}
  .live-label{grid-column:1 / -1;}
  .live-item:nth-of-type(2){border-left:0;padding-left:0;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;}
}
@media (max-width:767px){
  body .container{padding-left:20px;padding-right:20px;}
  .site-header .nav-inner{height:64px;}
  .head-panel{padding:38px 22px 34px;min-height:260px;}
  .section{padding:64px 0 0;}
  .mat-grid{grid-template-columns:1fr;gap:16px;}
  .faq-grid{grid-template-columns:1fr;gap:0;}
  .faq-col + .faq-col .faq-item:first-child{border-top:0;}
  .grade-list li{flex-direction:column;gap:6px;}
  .grade-name{width:auto;}
  .live-bar{grid-template-columns:1fr;gap:16px;}
  .live-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:14px;}
  .live-item:first-of-type{border-top:0;padding-top:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 22px;}
  .modal-mask{padding:0;align-items:flex-end;}
  .modal-card{max-width:100%;border-radius:24px 24px 0 0;padding:28px 22px 32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .feature-card{padding:24px 20px;}
  .mat-card{padding:24px 20px;}
  .head-tags{gap:8px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
}