/* roulang page: index */
:root{
  --primary:#0F766E;--primary-dark:#0B4F4A;--primary-light:#14B8A6;
  --gradient-brand:linear-gradient(135deg,#0F766E 0%,#14B8A6 100%);
  --accent:#F97316;--accent-light:#F59E0B;
  --gradient-cta:linear-gradient(135deg,#F97316 0%,#F59E0B 100%);
  --bg:#F7F5F2;--bg-soft:#E8F5F0;--white:#FFFFFF;
  --text:#1C2A2A;--text-secondary:#5B6B6A;--text-muted:#8A9B98;
  --border:#E2ECE9;--success:#10B981;--warning:#F59E0B;--error:#EF4444;
  --radius-lg:24px;--radius-md:16px;--radius-sm:10px;
  --shadow-card:0 4px 24px rgba(15,118,110,.08);
  --shadow-hover:0 12px 40px rgba(15,118,110,.14);
  --shadow-btn:0 8px 20px rgba(249,115,22,.3);
  --transition:.25s ease;
  --container:1200px;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:var(--space-section) 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:2rem;font-weight:900;line-height:1.3;color:var(--text);letter-spacing:-.01em}
.section-head p{margin-top:12px;font-size:1.05rem;color:var(--text-secondary);max-width:640px;margin-left:auto;margin-right:auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;font-weight:700;font-size:16px;
  cursor:pointer;transition:all var(--transition);text-align:center;line-height:1.2;
}
.btn-primary{background:var(--gradient-cta);color:#fff;box-shadow:var(--shadow-btn)}
.btn-primary:hover{filter:brightness(1.05);box-shadow:0 10px 28px rgba(249,115,22,.38);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-primary:focus-visible{outline:3px solid rgba(249,115,22,.4);outline-offset:2px}
.btn-outline{background:transparent;border:2px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--bg-soft)}
.btn-outline:active{transform:translateY(1px)}
.btn-outline:focus-visible{outline:3px solid rgba(15,118,110,.25);outline-offset:2px}
.btn-light{background:rgba(255,255,255,.15);color:#fff;border:2px solid rgba(255,255,255,.5);backdrop-filter:blur(4px)}
.btn-light:hover{background:rgba(255,255,255,.25);transform:translateY(-2px)}
.text-link{display:inline-flex;align-items:center;gap:4px;color:var(--primary);font-weight:600;font-size:15px;transition:gap var(--transition)}
.text-link:hover{gap:10px;color:var(--accent)}
.text-link:hover .arrow{transform:translateX(4px)}
.text-link .arrow{display:inline-block;transition:transform var(--transition)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.9);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 24px;max-width:var(--container);margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:900;color:var(--primary);letter-spacing:.01em}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;flex-shrink:0}
.logo-text{font-size:20px;font-weight:900;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:8px 16px;font-size:15px;font-weight:500;color:var(--text-secondary);
  border-radius:8px;transition:color var(--transition),background var(--transition);
}
.nav-link:hover{color:var(--primary);background:var(--bg-soft)}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-link.active::after{
  content:'';position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);
}
.nav-cta{margin-left:8px}
.nav-toggle{display:none}
.header-right{display:flex;align-items:center;gap:12px}

/* Mobile Tabbar */
.mobile-tabbar{
  display:none;position:fixed;bottom:0;left:0;right:0;height:64px;z-index:200;
  background:#fff;border-top:1px solid var(--border);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);height:100%;max-width:560px;margin:0 auto}
.tab-item{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:12px;color:var(--text-muted);transition:color var(--transition);
}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tab-item.active{color:var(--primary);font-weight:700}
.tab-item.active svg{stroke:var(--primary)}
.tab-item:active{opacity:.7}

/* Hero */
.hero{
  position:relative;padding:72px 0 88px;overflow:hidden;
  background:linear-gradient(180deg,var(--bg-soft) 0%,var(--bg) 100%);
}
.hero::before{
  content:'';position:absolute;top:-120px;right:-80px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,184,166,.18) 0%,rgba(20,184,166,0) 70%);
  pointer-events:none;
}
.hero::after{
  content:'';position:absolute;bottom:-100px;left:-60px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(249,115,22,.12) 0%,rgba(249,115,22,0) 70%);
  pointer-events:none;
}
.hero-inner{display:grid;grid-template-columns:1.1fr 0.9fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;background:rgba(15,118,110,.1);
  color:var(--primary);border-radius:999px;padding:6px 16px;font-size:14px;font-weight:600;margin-bottom:20px;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}
.hero h1{
  font-size:2.6rem;font-weight:900;line-height:1.25;color:var(--text);letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero h1 .highlight{background:var(--gradient-brand);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero h1 .underline{position:relative;display:inline-block}
.hero h1 .underline::after{content:'';position:absolute;left:0;bottom:4px;height:10px;width:100%;background:rgba(249,115,22,.2);border-radius:4px;z-index:-1}
.hero-sub{font-size:1.15rem;color:var(--text-secondary);line-height:1.7;margin-bottom:32px;max-width:520px}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.hero-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:8px}
.hero-points span{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-secondary)}
.hero-points span::before{content:'✓';width:18px;height:18px;border-radius:50%;background:var(--bg-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.hero-visual{position:relative}
.hero-card{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hover);
  position:relative;aspect-ratio:4/3;background:var(--bg-soft);
}
.hero-card img{width:100%;height:100%;object-fit:cover}
.hero-card::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 60%,rgba(11,79,74,.3) 100%)}
.hero-card-float{
  position:absolute;bottom:20px;left:20px;background:rgba(255,255,255,.92);border-radius:16px;
  padding:14px 20px;box-shadow:var(--shadow-card);display:flex;align-items:center;gap:12px;z-index:3;
}
.hero-float-icon{width:40px;height:40px;border-radius:10px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}
.hero-float-text b{display:block;font-size:15px;color:var(--text)}
.hero-float-text span{font-size:13px;color:var(--text-muted)}
.hero-shape{position:absolute;top:-20px;right:-20px;width:120px;height:120px;border-radius:30px;background:rgba(20,184,166,.15);transform:rotate(15deg);z-index:0}

/* Trust Bar */
.trust-bar{margin-top:-40px;position:relative;z-index:5;padding:0}
.trust-inner{
  background:var(--bg-soft);border-radius:var(--radius-lg);padding:28px 36px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:center;
}
.trust-item{display:flex;flex-direction:column;gap:2px;text-align:center;position:relative}
.trust-item:not(:last-child)::after{content:'';position:absolute;right:0;top:20%;bottom:20%;width:1px;background:var(--border)}
.trust-num{font-size:2rem;font-weight:900;color:var(--primary);font-family:"DIN Alternate","Roboto Mono","Bahnschrift",monospace;line-height:1.2}
.trust-label{font-size:14px;color:var(--text-secondary)}

/* Services */
.services{background:var(--bg)}
.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.service-card{
  background:var(--white);border-radius:var(--radius-lg);padding:36px;
  box-shadow:var(--shadow-card);border:1px solid var(--border);
  transition:all var(--transition);position:relative;overflow:hidden;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,118,110,.3)}
.service-card-lg{min-height:260px}
.service-card-sm{min-height:220px}
.service-card:nth-child(3){margin-left:48px}
.service-card:nth-child(4){margin-right:48px}
.service-num{
  font-size:3.4rem;font-weight:900;color:var(--bg-soft);font-family:"DIN Alternate",monospace;
  line-height:1;display:block;margin-bottom:20px;position:absolute;top:24px;right:24px;
}
.service-icon{width:52px;height:52px;border-radius:14px;background:var(--gradient-brand);display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:20px;font-size:24px}
.service-card h3{font-size:1.4rem;font-weight:800;margin-bottom:10px;color:var(--text)}
.service-card p{font-size:15px;color:var(--text-secondary);line-height:1.7;margin-bottom:18px;max-width:46ch}
.service-card .text-link{margin-top:auto}

/* Stats Section */
.stats-section{
  background:var(--gradient-brand);position:relative;overflow:hidden;color:#fff;
}
.stats-section::before{
  content:'';position:absolute;top:0;left:0;right:0;bottom:0;
  background-image:radial-gradient(circle at 20% 50%,rgba(255,255,255,.08) 0%,transparent 40%),
    radial-gradient(circle at 80% 20%,rgba(255,255,255,.06) 0%,transparent 30%);
  pointer-events:none;
}
.stats-section .container{position:relative;z-index:2;text-align:center}
.stats-section .section-head h2{color:#fff}
.stats-section .section-head p{color:rgba(255,255,255,.85)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin:40px 0}
.stat-card{
  background:rgba(255,255,255,.12);border-radius:20px;padding:28px 20px;
  backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.15);
  transition:transform var(--transition),background var(--transition);
}
.stat-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.18)}
.stat-number{font-size:2.6rem;font-weight:900;line-height:1.2;display:block;font-family:"DIN Alternate","Roboto Mono",monospace}
.stat-note{font-size:15px;color:rgba(255,255,255,.9);display:block;margin-top:6px}
.stats-section .btn-light{margin-top:16px}
.stats-note{font-size:15px;color:rgba(255,255,255,.85);max-width:600px;margin:0 auto 20px;line-height:1.8}

/* Cases */
.cases{background:var(--bg)}
.cases-scroll{
  display:flex;gap:24px;overflow-x:auto;padding:12px 4px 20px;scroll-snap-type:x mandatory;
}
.cases-scroll::-webkit-scrollbar{height:6px}
.cases-scroll::-webkit-scrollbar-track{background:var(--bg-soft);border-radius:3px}
.cases-scroll::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:3px}
.case-card{
  min-width:320px;max-width:320px;background:var(--white);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);border:1px solid var(--border);overflow:hidden;
  scroll-snap-align:start;transition:transform var(--transition),box-shadow var(--transition);
}
.case-card:hover{transform:scale(1.02);box-shadow:var(--shadow-hover)}
.case-cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.case-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.case-card:hover .case-cover img{transform:scale(1.05)}
.case-tag{
  position:absolute;top:12px;left:12px;background:rgba(15,118,110,.9);color:#fff;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;backdrop-filter:blur(4px);
}
.case-body{padding:20px}
.case-body h3{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--text)}
.case-body p{font-size:14px;color:var(--text-secondary);line-height:1.6}

/* Steps Section */
.steps{background:var(--bg-soft)}
.steps-layout{display:grid;grid-template-columns:0.9fr 1.1fr;gap:56px;align-items:start}
.steps-timeline{position:relative;padding-left:0}
.step-dot-wrap{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:36px;position:relative}
.step-dot{
  width:48px;height:48px;border-radius:50%;background:var(--gradient-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:900;font-size:18px;
  box-shadow:var(--shadow-card);position:relative;z-index:2;
}
.step-dot-wrap::after{
  content:'';position:absolute;left:24px;top:48px;width:2px;height:calc(100% - 36px);
  background:var(--border);
}
.step-dot-wrap:last-child::after{display:none}
.step-text{margin-top:14px;padding-left:4px}
.step-text b{font-size:17px;color:var(--text);display:block;margin-bottom:4px}
.step-text span{font-size:14px;color:var(--text-secondary)}
.steps-cards{display:flex;flex-direction:column;gap:20px}
.step-card{
  background:var(--white);border-radius:var(--radius-md);padding:24px 28px;
  box-shadow:var(--shadow-card);border-left:4px solid var(--primary);
  display:flex;gap:16px;align-items:flex-start;transition:transform var(--transition),box-shadow var(--transition);
}
.step-card:hover{transform:translateX(6px);box-shadow:var(--shadow-hover)}
.step-card-icon{width:44px;height:44px;border-radius:12px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:20px;flex-shrink:0}
.step-card h4{font-size:17px;font-weight:700;color:var(--text);margin-bottom:4px}
.step-card p{font-size:14px;color:var(--text-secondary);line-height:1.6}
.steps-bottom{margin-top:36px;text-align:center}

/* News Section */
.news-section{background:var(--bg)}
.news-layout{display:grid;grid-template-columns:0.8fr 1.2fr;gap:48px;align-items:start}
.news-side{position:sticky;top:96px}
.news-side h2{font-size:2rem;font-weight:900;margin-bottom:16px}
.news-side p{color:var(--text-secondary);line-height:1.7;margin-bottom:24px}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-card{
  background:var(--white);border-radius:var(--radius-md);padding:20px;
  display:flex;gap:20px;align-items:center;box-shadow:var(--shadow-card);border:1px solid var(--border);
  transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(15,118,110,.3)}
.news-thumb{
  width:96px;height:96px;border-radius:12px;overflow:hidden;flex-shrink:0;background:var(--bg-soft);
}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{flex:1;min-width:0}
.news-tag{
  display:inline-block;background:var(--bg-soft);color:var(--primary);font-size:12px;font-weight:600;
  padding:2px 12px;border-radius:999px;margin-bottom:6px;
}
.news-body h3{font-size:17px;font-weight:700;color:var(--text);margin-bottom:4px;line-height:1.4}
.news-body h3 a{transition:color var(--transition)}
.news-body h3 a:hover{color:var(--primary)}
.news-summary{
  font-size:14px;color:var(--text-secondary);line-height:1.5;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted)}
.news-meta time{display:inline-flex;align-items:center;gap:4px}
.news-meta .news-more{color:var(--primary);font-weight:600;font-size:14px;transition:color var(--transition)}
.news-meta .news-more:hover{color:var(--accent)}
.news-empty{
  background:var(--white);border-radius:var(--radius-md);padding:40px;text-align:center;
  border:2px dashed var(--border);color:var(--text-muted);
}
.empty-icon{font-size:32px;display:block;margin-bottom:12px}
.news-empty p{font-size:15px}
/* CMS dynamic area marker */
.cms-marker{font-size:12px;color:var(--text-muted);text-align:right;margin-top:12px;display:block}

/* FAQ */
.faq{background:var(--bg-soft)}
.faq-list{max-width:780px;margin:0 auto}
.faq-item{
  background:var(--white);border-radius:var(--radius-md);margin-bottom:14px;
  box-shadow:var(--shadow-card);border:1px solid var(--border);overflow:hidden;
  transition:box-shadow var(--transition);
}
.faq-item.active{box-shadow:var(--shadow-hover);border-color:rgba(15,118,110,.3)}
.faq-q{
  width:100%;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;
  cursor:pointer;font-size:16px;font-weight:600;color:var(--text);text-align:left;
  transition:background var(--transition);
}
.faq-q:hover{background:var(--bg-soft)}
.faq-q .icon{width:24px;height:24px;border-radius:50%;background:var(--bg-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;transition:transform .3s ease,background .3s ease,color .3s ease;flex-shrink:0}
.faq-item.active .faq-q .icon{transform:rotate(45deg);background:var(--gradient-brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 20px;font-size:15px;color:var(--text-secondary);line-height:1.7}
.faq-item.active .faq-a{max-height:400px}
.faq-more{text-align:center;margin-top:28px}

/* CTA Section */
.cta-section{background:var(--bg)}
.cta-card{
  background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);
  padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  border:1px solid var(--border);position:relative;overflow:hidden;
}
.cta-card::before{content:'';position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;background:rgba(20,184,166,.08);pointer-events:none}
.cta-text h2{font-size:2rem;font-weight:900;line-height:1.3;margin-bottom:14px}
.cta-text p{color:var(--text-secondary);line-height:1.7;margin-bottom:20px}
.cta-contact-info{margin:16px 0}
.cta-contact-info div{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:15px;color:var(--text-secondary)}
.cta-contact-info .ci-icon{width:32px;height:32px;border-radius:8px;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;color:var(--primary);flex-shrink:0}
.cta-form{display:flex;flex-direction:column;gap:14px}
.cta-form input,.cta-form textarea{
  width:100%;padding:13px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);
  background:var(--bg);font-size:15px;color:var(--text);transition:border-color var(--transition),box-shadow var(--transition);
}
.cta-form input:focus,.cta-form textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(15,118,110,.15);background:#fff;
}
.cta-form textarea{min-height:100px;resize:vertical}
.cta-form label{font-size:14px;color:var(--text-secondary);font-weight:500;margin-bottom:-4px}
.cta-form .btn-primary{width:100%}
.cta-form-note{font-size:13px;color:var(--text-muted);text-align:center}

/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.85);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .footer-logo{font-size:22px;font-weight:900;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .footer-logo .logo-mark{background:rgba(255,255,255,.15)}
.footer-brand p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.7);max-width:280px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.7);transition:color var(--transition),padding-left var(--transition)}
.footer-col ul li a:hover{color:#fff;padding-left:6px}
.footer-contact p{font-size:14px;line-height:1.7;margin-bottom:8px;color:rgba(255,255,255,.7)}
.footer-bottom{padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.7)}

/* Back to top */
.back-top{
  position:fixed;bottom:80px;right:24px;width:44px;height:44px;border-radius:50%;
  background:var(--gradient-brand);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-card);cursor:pointer;transition:all var(--transition);z-index:150;opacity:0;visibility:hidden;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}

/* Responsive */
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px;margin:0 auto}
  .hero h1{font-size:2.2rem}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .steps-layout{grid-template-columns:1fr;gap:40px}
  .news-layout{grid-template-columns:1fr;gap:32px}
  .news-side{position:static}
  .cta-card{grid-template-columns:1fr;padding:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  :root{--space-section:48px}
  .desktop-nav{display:none}
  .nav-toggle{display:flex}
  .site-header{height:60px}
  .header-inner{height:60px;padding:0 16px}
  .logo-mark{width:32px;height:32px;font-size:17px;border-radius:8px}
  .logo-text{font-size:18px}
  .mobile-tabbar{display:block}
  body{padding-bottom:64px}
  .hero{padding:40px 0 56px}
  .trust-inner{grid-template-columns:repeat(2,1fr);gap:16px;padding:24px}
  .trust-item:nth-child(2)::after{display:none}
  .trust-item:nth-child(n+3){border-top:1px solid var(--border);padding-top:16px}
  .service-grid{grid-template-columns:1fr;gap:20px}
  .service-card:nth-child(3){margin-left:0}
  .service-card:nth-child(4){margin-right:0}
  .service-card-lg,.service-card-sm{min-height:auto}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-number{font-size:2rem}
  .cases-scroll{padding-bottom:12px}
  .case-card{min-width:280px;max-width:280px}
  .news-card{flex-direction:column;align-items:flex-start}
  .news-thumb{width:100%;height:160px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a-inner{padding:0 18px 16px}
  .cta-card{padding:28px 20px;gap:28px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .back-top{bottom:76px;right:16px}
}
@media(max-width:480px){
  .hero h1{font-size:1.75rem}
  .hero-sub{font-size:1rem}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .trust-inner{grid-template-columns:1fr 1fr;gap:12px;padding:20px}
  .trust-num{font-size:1.5rem}
  .service-card{padding:24px}
  .service-num{font-size:2.6rem}
  .section-head h2{font-size:1.6rem}
  .stats-section .section-head h2{font-size:1.6rem}
  .steps-bottom .btn{width:100%}
}

@media(min-width:769px){
  .desktop-nav{display:flex}
}

/* roulang page: article */
:root {
  --primary: #0F766E;
  --primary-light: #14B8A6;
  --primary-grad: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
  --accent: #F97316;
  --amber: #F59E0B;
  --accent-grad: linear-gradient(135deg, #F97316, #F59E0B);
  --bg-warm: #F7F5F2;
  --bg-white: #FFFFFF;
  --bg-green: #E8F5F0;
  --text-main: #1C2A2A;
  --text-muted: #5B6B6A;
  --text-faint: #8A9B98;
  --border: #E2ECE9;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --r-lg: 24px;
  --r-md: 16px;
  --r-sm: 10px;
  --shadow-sm: 0 4px 24px rgba(15,118,110,.08);
  --shadow-md: 0 12px 40px rgba(15,118,110,.14);
  --font: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num: "DIN Alternate","Roboto Mono","Bahnschrift",monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 42px; height: 42px;
  background: var(--primary-grad);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 900; font-size: 21px;
  box-shadow: 0 4px 12px rgba(15,118,110,.25);
}
.logo-text {
  font-size: 20px; font-weight: 900; color: var(--text-main);
  letter-spacing: .5px; line-height: 1.2;
}
.logo-text em { font-style: normal; color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  position: relative;
  color: var(--text-muted);
  font-size: 15px; font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color .2s, background .2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 12px; right: 12px; bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 4px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-link:hover { color: var(--accent); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.header-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.header-tel {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--text-muted);
}
.nav-cta { padding: 10px 22px; font-size: 14px; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  border-radius: var(--r-sm);
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all .25s ease;
  text-align: center;
}
.btn-primary {
  background: var(--accent-grad);
  color: #fff;
  padding: 14px 28px;
  box-shadow: 0 4px 14px rgba(249,115,22,.22);
}
.btn-primary:hover { box-shadow: 0 8px 22px rgba(249,115,22,.32); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px); box-shadow: 0 4px 8px rgba(249,115,22,.2); }
.btn-primary:focus-visible { outline: 3px solid rgba(249,115,22,.4); outline-offset: 2px; }
.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
  padding: 12px 28px;
}
.btn-secondary:hover { background: var(--bg-green); transform: translateY(-2px); }
.btn-secondary:active { transform: translateY(1px); }

/* ── Breadcrumb ── */
.breadcrumb-bar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap;
  font-size: 14px; color: var(--text-faint);
  gap: 6px;
}
.breadcrumb a { color: var(--text-muted); transition: color .2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--border); font-weight: 300; }
.breadcrumb .current { color: var(--text-muted); font-weight: 600; max-width: 360px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── Article Main ── */
.article-main {
  padding: 48px 0 80px;
}
.article-card {
  background: #fff;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  max-width: 860px;
  margin: 0 auto;
  padding: 56px 64px;
  transition: box-shadow .3s;
}
.article-card:hover { box-shadow: var(--shadow-md); }
.article-header { text-align: center; margin-bottom: 40px; }
.article-cat {
  display: inline-flex; align-items: center;
  background: var(--bg-green);
  color: var(--primary);
  font-size: 13px; font-weight: 700;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.article-title {
  font-size: 32px; font-weight: 900;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: .5px;
}
.article-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 20px;
  margin-top: 18px;
  font-size: 14px; color: var(--text-faint);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta svg { width: 15px; height: 15px; }
.article-divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 0 0 40px;
}

/* ── Article Content ── */
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
}
.article-content p {
  margin-bottom: 1.6em;
  max-width: 72ch;
}
.article-content h2 {
  font-size: 24px; font-weight: 800;
  margin: 2em 0 1em;
  color: var(--text-main);
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 20px; font-weight: 700;
  margin: 1.6em 0 .8em;
  color: var(--text-main);
}
.article-content h4 {
  font-size: 17px; font-weight: 700;
  margin: 1.4em 0 .6em;
}
.article-content strong { font-weight: 700; color: var(--text-main); }
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(15,118,110,.3);
  transition: text-decoration-color .2s;
}
.article-content a:hover { text-decoration-color: var(--primary); }
.article-content ul, .article-content ol {
  margin: 1.2em 0 1.8em;
  padding-left: 1.6em;
}
.article-content ul li {
  position: relative;
  margin-bottom: .7em;
  padding-left: 8px;
}
.article-content ul li::before {
  content: '';
  position: absolute;
  left: -14px; top: .75em;
  width: 6px; height: 6px;
  background: var(--primary-light);
  border-radius: 50%;
}
.article-content ol { counter-reset: item; }
.article-content ol li {
  counter-increment: item;
  position: relative;
  margin-bottom: .7em;
  padding-left: 12px;
}
.article-content ol li::before {
  content: counter(item) ".";
  position: absolute;
  left: -18px;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--font-num);
}
.article-content blockquote {
  border-left: 4px solid var(--primary);
  background: var(--bg-green);
  padding: 18px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.6em 0;
  color: var(--text-muted);
  font-style: normal;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content img {
  width: 100%;
  border-radius: var(--r-md);
  margin: 1.8em 0;
  box-shadow: var(--shadow-sm);
  background: var(--bg-green);
}
.article-content figure {
  margin: 1.8em 0;
  text-align: center;
}
.article-content figure img { margin: 0 auto; }
.article-content figcaption {
  font-size: 13px; color: var(--text-faint);
  margin-top: 10px;
}
.article-content code {
  background: var(--bg-green);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: .9em;
  color: var(--primary);
}
.article-content pre {
  background: #132A2A;
  color: #E8F5F0;
  padding: 22px 26px;
  border-radius: var(--r-md);
  overflow-x: auto;
  margin: 1.8em 0;
  line-height: 1.6;
}
.article-content pre code {
  background: none; color: inherit; padding: 0;
}

/* ── Article Footer Nav ── */
.post-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}
.post-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 16px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all .25s ease;
}
.post-nav a.next { justify-content: flex-end; text-align: right; }
.post-nav a:hover {
  background: var(--bg-green);
  border-color: rgba(15,118,110,.3);
  color: var(--primary);
  transform: translateY(-2px);
}
.post-nav .arrow { flex-shrink: 0; font-size: 18px; }

/* ── Empty State ── */
.article-empty {
  text-align: center;
  padding: 80px 20px;
}
.empty-icon {
  width: 88px; height: 88px;
  margin: 0 auto 28px;
  background: var(--bg-green);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.empty-icon svg { width: 40px; height: 40px; stroke: var(--primary); }
.article-empty h2 {
  font-size: 24px; font-weight: 800;
  color: var(--text-main);
  margin-bottom: 10px;
}
.article-empty p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
}

/* ── Related Posts ── */
.related-section {
  padding: 80px 0;
  background: var(--bg-green);
}
.related-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
  margin-bottom: 40px;
}
.section-title {
  font-size: 28px; font-weight: 900;
  color: var(--text-main);
  position: relative;
  padding-left: 16px;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 5px;
  background: var(--accent);
  border-radius: 8px;
}
.section-sub {
  font-size: 14px; color: var(--text-faint);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: #fff;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(15,118,110,.3);
}
.related-card .card-thumb {
  height: 180px;
  overflow: hidden;
  background: var(--bg-green);
}
.related-card .card-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.related-card:hover .card-thumb img { transform: scale(1.05); }
.related-card .card-body {
  padding: 22px;
}
.related-card .card-tag {
  display: inline-block;
  font-size: 12px; font-weight: 700;
  color: var(--primary);
  background: var(--bg-green);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 10px;
}
.related-card .card-title {
  font-size: 17px; font-weight: 700;
  color: var(--text-main);
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-desc {
  font-size: 13px;
  color: var(--text-faint);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── CTA Section ── */
.article-cta {
  padding: 80px 0;
}
.cta-banner {
  background: var(--primary-grad);
  border-radius: var(--r-lg);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 30px;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-banner::after {
  content: '';
  position: absolute;
  right: -60px; top: -80px;
  width: 260px; height: 260px;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
}
.cta-banner::before {
  content: '';
  position: absolute;
  right: 80px; bottom: -100px;
  width: 200px; height: 200px;
  background: rgba(255,255,255,.05);
  border-radius: 50%;
}
.cta-content { z-index: 1; flex: 1; min-width: 260px; }
.cta-content h2 {
  font-size: 28px; font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: .5px;
}
.cta-content p { font-size: 15px; opacity: .9; max-width: 46ch; }
.cta-actions { z-index: 1; display: flex; flex-direction: column; gap: 12px; align-items: flex-start; }
.cta-actions .btn-primary {
  background: #fff;
  background-image: none;
  color: var(--primary);
  box-shadow: 0 6px 16px rgba(0,0,0,.15);
  font-size: 16px;
  padding: 14px 36px;
}
.cta-actions .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(0,0,0,.2);
}
.cta-note {
  font-size: 13px; opacity: .75;
  display: flex; align-items: center; gap: 6px;
}

/* ── Footer ── */
.site-footer {
  background: #0B4F4A;
  color: rgba(255,255,255,.9);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .footer-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 900; color: #fff;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px; line-height: 1.7;
  color: rgba(255,255,255,.7);
  max-width: 32ch;
}
.footer-col h4 {
  font-size: 15px; font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  color: rgba(255,255,255,.7);
  font-size: 14px;
  transition: color .2s;
}
.footer-col ul a:hover { color: var(--amber); }
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,.7);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.55);
}

/* ── Mobile Tabbar ── */
.mobile-tabbar {
  display: none;
}
@media (max-width: 767px) {
  .mobile-tabbar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 64px;
    background: #fff;
    border-top: 1px solid var(--border);
    z-index: 200;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 4px;
    box-shadow: 0 -4px 20px rgba(0,0,0,.04);
  }
  .mobile-tabbar a {
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 3px;
    font-size: 11px;
    color: var(--text-faint);
    text-decoration: none;
    padding: 6px 8px;
    border-radius: 12px;
    transition: color .2s;
    flex: 1;
  }
  .mobile-tabbar a svg { width: 21px; height: 21px; }
  .mobile-tabbar a.active { color: var(--primary); font-weight: 700; }
  .mobile-tabbar a.tab-register {
    background: var(--accent-grad);
    color: #fff;
    border-radius: 16px;
    margin: -18px 4px 0;
    padding: 10px 12px;
    box-shadow: 0 6px 18px rgba(249,115,22,.32);
    flex: 0 0 auto;
    min-width: 64px;
  }
  .mobile-tabbar a.tab-register svg { width: 22px; height: 22px; }
  body { padding-bottom: 64px; }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .main-nav { gap: 4px; }
  .nav-link { font-size: 14px; padding: 8px 10px; }
  .header-tel { display: none !important; }
  .article-card { padding: 44px 40px; }
}

@media (max-width: 767px) {
  .desktop-nav, .header-right { display: none; }
  .header-inner { height: 62px; }
  .logo-mark { width: 36px; height: 36px; font-size: 18px; border-radius: 12px; }
  .logo-text { font-size: 17px; }
  .breadcrumb-bar { padding: 10px 0; }
  .breadcrumb { font-size: 12px; }
  .breadcrumb .current { max-width: 160px; }
  .article-main { padding: 24px 0 48px; }
  .article-card { padding: 24px 18px; border-radius: var(--r-md); }
  .article-title { font-size: 22px; }
  .article-meta { gap: 12px; font-size: 12px; }
  .article-content { font-size: 15px; line-height: 1.75; }
  .article-content h2 { font-size: 20px; }
  .article-content h3 { font-size: 17px; }
  .article-content blockquote { padding: 14px 16px; }
  .post-nav { grid-template-columns: 1fr; gap: 10px; }
  .post-nav a { font-size: 13px; padding: 12px 14px; }
  .post-nav a.next { justify-content: flex-start; text-align: left; }
  .related-section { padding: 48px 0; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-card .card-thumb { height: 160px; }
  .article-cta { padding: 48px 0; }
  .cta-banner { padding: 32px 24px; border-radius: var(--r-md); }
  .cta-content h2 { font-size: 22px; }
  .cta-banner::after, .cta-banner::before { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-brand p { max-width: none; }
}

@media (max-width: 480px) {
  .article-title { font-size: 20px; }
  .container { padding: 0 16px; }
  .related-card .card-thumb { height: 140px; }
}

/* roulang page: category1 */
:root {
  --primary: #0F766E;
  --primary-dark: #0B4F4A;
  --primary-light: #14B8A6;
  --gradient: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
  --accent: #F97316;
  --amber: #F59E0B;
  --bg: #F7F5F2;
  --surface: #FFFFFF;
  --surface-mute: #E8F5F0;
  --text: #1C2A2A;
  --text-muted: #5B6B6A;
  --text-light: #8A9B98;
  --border: #E2ECE9;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 24px rgba(15, 118, 110, 0.08);
  --shadow-md: 0 12px 40px rgba(15, 118, 110, 0.14);
  --shadow-accent: 0 8px 20px rgba(249, 115, 22, 0.3);
  --container: 1200px;
  --font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease, opacity .25s ease;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font-family: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-head .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-mute);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  color: var(--primary-dark);
  letter-spacing: -0.01em;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--gradient);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(15, 118, 110, 0.2);
}

.logo-text em {
  font-style: normal;
  color: var(--accent);
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}

.nav-link {
  position: relative;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--accent);
  background: rgba(249, 115, 22, 0.06);
}

.nav-link:focus-visible,
.logo:focus-visible,
.btn:focus-visible,
.mobile-tab a:focus-visible,
.faq-q:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.4);
  outline-offset: 2px;
}

.nav-link.active {
  color: var(--primary);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  display: block;
  height: 2px;
  width: 20px;
  background: var(--accent);
  border-radius: 2px;
  margin: 4px auto 0;
}

.nav-cta {
  margin-left: 10px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  transition: all .25s ease;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #F97316 0%, #F59E0B 100%);
  color: #fff;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.2);
}

.btn-primary:hover {
  filter: brightness(1.05);
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(249, 115, 22, 0.25);
}

.btn-secondary {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary-dark);
}

.btn-secondary:hover {
  background: var(--surface-mute);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.btn-secondary:active {
  transform: translateY(0);
}

.btn-white {
  background: #fff;
  color: var(--primary-dark);
}

.btn-white:hover {
  background: var(--surface-mute);
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.14);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 16px;
}

/* ========== Banner ========== */
.page-banner {
  position: relative;
  padding: 110px 0 90px;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 79, 74, 0.94) 0%, rgba(20, 184, 166, 0.84) 100%);
  z-index: 1;
}

.page-banner::after {
  content: "";
  position: absolute;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -160px;
  right: -120px;
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 840px;
  margin: 0 auto;
}

.banner-flag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 7px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 22px;
}

.banner-flag::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--amber);
  border-radius: 50%;
}

.page-banner h1 {
  font-size: 42px;
  line-height: 1.28;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-banner p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
  margin: 0 auto 32px;
}

.banner-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Prep Section ========== */
.prep-section {
  padding: 96px 0;
  background: var(--bg);
}

.prep-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.prep-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all .25s ease;
  position: relative;
}

.prep-card:nth-child(2) {
  margin-top: 32px;
}

.prep-card:nth-child(3) {
  margin-top: 16px;
}

.prep-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 118, 110, 0.3);
}

.prep-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--surface-mute);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
}

.prep-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}

.prep-card p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ========== Guide Flow ========== */
.guide-flow {
  background: var(--surface-mute);
  padding: 96px 0;
}

.flow-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 80px;
}

.flow-row:last-child {
  margin-bottom: 0;
}

.flow-row.reverse .flow-media {
  order: 2;
}

.flow-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.flow-media img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  transition: transform .4s ease;
}

.flow-media:hover img {
  transform: scale(1.02);
}

.flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.flow-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 16px;
  box-shadow: 0 4px 10px rgba(15, 118, 110, 0.2);
}

.flow-label {
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.06em;
}

.flow-content h3 {
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.flow-content p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
}

.flow-list {
  margin-top: 16px;
  display: grid;
  gap: 10px;
}

.flow-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text);
  font-size: 15px;
}

.flow-list li::before {
  content: "";
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 9px;
}

/* ========== Guarantee ========== */
.guarantee-section {
  padding: 80px 0;
  background: var(--gradient);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.guarantee-section::before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  top: -120px;
  left: -100px;
}

.guarantee-head {
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  z-index: 2;
}

.guarantee-head h2 {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: 8px;
}

.guarantee-head p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
}

.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative;
  z-index: 2;
}

.guarantee-item {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  padding: 30px 24px;
  text-align: center;
  transition: background .25s ease, transform .25s ease;
}

.guarantee-item:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
}

.guarantee-num {
  font-family: "DIN Alternate", "Roboto Mono", "Bahnschrift", monospace;
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 6px;
}

.guarantee-label {
  font-size: 14px;
  opacity: 0.9;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 96px 0;
  background: var(--bg);
}

.faq-accordion {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(15, 118, 110, 0.3);
}

.faq-item.open {
  box-shadow: var(--shadow-sm);
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  font-weight: 700;
  color: var(--text);
  gap: 16px;
  text-align: left;
  width: 100%;
  font-size: 16px;
}

.faq-q:hover {
  color: var(--primary);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 18px;
  font-weight: 400;
  transition: transform .3s ease, border-color .3s ease;
  line-height: 1;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-a-inner {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.8;
  font-size: 15px;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
  margin: 0 24px 20px;
  padding-left: 0;
  padding-right: 0;
  margin-left: 24px;
  margin-right: 24px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 80px 0 96px;
  background: var(--bg);
}

.cta-card {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 56px;
  display: flex;
  align-items: center;
  gap: 48px;
  justify-content: space-between;
  color: #fff;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  right: -80px;
  top: -80px;
}

.cta-info h2 {
  font-size: 28px;
  font-weight: 900;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.cta-info p {
  color: rgba(255, 255, 255, 0.88);
  max-width: 460px;
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.cta-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 10px 0;
}

.cta-phone:hover {
  opacity: 0.85;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary-dark);
  color: #fff;
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
}

.footer-logo .logo-mark {
  background: var(--gradient);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: color .25s ease, padding-left .25s ease;
}

.footer-col ul a:hover {
  color: var(--amber);
  padding-left: 4px;
}

.footer-contact p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-bottom: 10px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding-top: 20px;
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

/* ========== Mobile Tab ========== */
.mobile-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #fff;
  border-top: 1px solid var(--border);
  z-index: 999;
  box-shadow: 0 -4px 24px rgba(15, 118, 110, 0.06);
}

.mobile-tab a {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 12px;
  color: var(--text-light);
  transition: color .2s ease;
}

.mobile-tab a:hover {
  color: var(--primary);
}

.mobile-tab a.active {
  color: var(--primary);
  font-weight: 700;
}

.mobile-tab .tab-icon {
  width: 22px;
  height: 22px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
    padding: 0 16px;
  }

  .desktop-nav {
    gap: 2px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 14px;
  }

  .header-right span {
    display: none !important;
  }

  .prep-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .prep-card {
    padding: 22px;
  }

  .flow-row {
    gap: 36px;
  }

  .cta-card {
    padding: 40px;
    gap: 32px;
  }
}

@media (max-width: 860px) {
  .prep-grid {
    grid-template-columns: 1fr 1fr;
  }

  .prep-card:nth-child(3) {
    grid-column: 1 / -1;
    margin-top: 0;
    max-width: 100%;
  }

  .flow-row,
  .flow-row.reverse {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 56px;
  }

  .flow-row.reverse .flow-media {
    order: 0;
  }

  .flow-media img {
    height: 240px;
  }

  .guarantee-grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
  }

  .guarantee-item {
    padding: 22px 16px;
  }
}

@media (max-width: 767px) {
  .site-header {
    display: none;
  }

  .mobile-tab {
    display: flex;
  }

  body {
    padding-bottom: 64px;
  }

  .page-banner {
    padding: 72px 0 56px;
  }

  .page-banner h1 {
    font-size: 28px;
  }

  .page-banner p {
    font-size: 15px;
  }

  .prep-section,
  .guide-flow,
  .faq-section,
  .cta-section {
    padding: 56px 0;
  }

  .guarantee-section {
    padding: 56px 0;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .prep-grid {
    grid-template-columns: 1fr;
  }

  .prep-card:nth-child(2) {
    margin-top: 0;
  }

  .guarantee-grid {
    grid-template-columns: 1fr;
  }

  .guarantee-num {
    font-size: 36px;
  }

  .cta-card {
    flex-direction: column;
    text-align: center;
    padding: 36px 24px;
    gap: 24px;
  }

  .cta-actions {
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .page-banner h1 {
    font-size: 24px;
  }

  .banner-actions .btn {
    width: 100%;
    margin-bottom: 4px;
  }

  .flow-media img {
    height: 200px;
  }

  .flow-content h3 {
    font-size: 21px;
  }

  .cta-card h2 {
    font-size: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .faq-q {
    font-size: 15px;
    padding: 18px 16px;
  }

  .faq-a-inner {
    font-size: 14px;
    margin-left: 16px;
    margin-right: 16px;
  }

  .guarantee-head h2 {
    font-size: 24px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0F766E;
  --primary-dark: #0B4F4A;
  --primary-light: #14B8A6;
  --accent: #F97316;
  --amber: #F59E0B;
  --bg: #F7F5F2;
  --bg-green: #E8F5F0;
  --text: #1C2A2A;
  --text-muted: #5B6B6A;
  --text-light: #8A9B98;
  --border: #E2ECE9;
  --white: #FFFFFF;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 24px rgba(15,118,110,0.08);
  --shadow-hover: 0 12px 40px rgba(15,118,110,0.14);
  --gradient-primary: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
  --gradient-accent: linear-gradient(135deg, #F97316, #F59E0B);
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", "Bahnschrift", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: 100%; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--bg-green); }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 99;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
}
.logo-text {
  font-size: 20px;
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.logo-text em {
  font-style: normal;
  color: var(--primary);
  margin-left: 2px;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 6px 2px;
  position: relative;
  transition: color 0.25s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--primary); font-weight: 700; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-right span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
}
.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 12px rgba(249,115,22,0.2);
}
.btn-primary:hover {
  filter: brightness(1.05);
  box-shadow: var(--shadow-accent);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(1px); }
.btn-primary:focus-visible {
  outline: 3px solid rgba(249,115,22,0.35);
  outline-offset: 2px;
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.85);
  padding: 12px 26px;
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 16px; }
.nav-cta { padding: 10px 22px; font-size: 14px; border-radius: 10px; }

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  min-height: 460px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  overflow: hidden;
  color: #fff;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(11,79,74,0.92) 15%, rgba(15,118,110,0.78) 55%, rgba(20,184,166,0.5) 100%);
  z-index: 1;
}
.banner-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 80px 0;
}
.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(6px);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.banner-tag i { color: var(--amber); }
.banner-content h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.banner-content h1 .hl { color: var(--amber); }
.banner-content p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.92);
  max-width: 620px;
  margin-bottom: 32px;
}
.banner-breadcrumb {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 28px;
}
.banner-breadcrumb a { transition: color 0.25s; }
.banner-breadcrumb a:hover { color: var(--amber); }
.banner-breadcrumb .sep { opacity: 0.6; }

/* ===== Intro Section ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.intro-text .tag-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--bg-green);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}
.intro-text h2 {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--text);
}
.intro-text h2 span { color: var(--primary); }
.intro-text > p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 24px;
  max-width: 54ch;
}
.intro-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 15px;
  color: var(--text);
  line-height: 1.7;
}
.intro-list i {
  color: var(--success);
  font-size: 18px;
  margin-top: 4px;
  flex-shrink: 0;
}
.intro-image { position: relative; }
.intro-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hover);
  object-fit: cover;
  aspect-ratio: 5 / 4;
}
.float-badge {
  position: absolute;
  bottom: 24px;
  left: -18px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--border);
}
.float-badge-num {
  font-family: var(--font-num);
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.float-badge-label {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ===== Tips Section ===== */
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head .tag-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  background: var(--white);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
  border: 1px solid var(--border);
}
.section-head h2 {
  font-size: 32px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--text);
}
.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 640px;
  margin: 0 auto;
}
.tips-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.tip-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 30px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.tip-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(15,118,110,0.3);
}
.tip-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--bg-green);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  transition: background 0.25s, color 0.25s;
}
.tip-card:hover .tip-icon {
  background: var(--primary);
  color: #fff;
}
.tip-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.tip-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.faq-item:hover {
  border-color: rgba(15,118,110,0.3);
  box-shadow: var(--shadow-card);
}
.faq-item[open] {
  box-shadow: var(--shadow-card);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  list-style: none;
  transition: color 0.25s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary .faq-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--bg-green);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
  transition: transform 0.3s, background 0.3s, color 0.3s;
}
.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  padding: 0 24px 22px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 18px;
}

/* ===== CTA ===== */
.cta-section { padding-top: 0; }
.cta-card {
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  padding: 56px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(15,118,110,0.22);
}
.cta-card::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-card::after {
  content: "";
  position: absolute;
  left: 30%;
  bottom: -120px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}
.cta-content { position: relative; z-index: 2; }
.cta-content h2 {
  font-size: 30px;
  font-weight: 900;
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-content p {
  font-size: 16px;
  color: rgba(255,255,255,0.9);
  max-width: 48ch;
  line-height: 1.7;
}
.cta-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
  color: #fff;
  margin-bottom: 16px;
}
.footer-logo .logo-mark {
  width: 38px;
  height: 38px;
  font-size: 18px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.7);
  max-width: 30ch;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: color 0.25s, padding-left 0.25s;
}
.footer-col ul li a:hover {
  color: var(--amber);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
  line-height: 1.8;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
}

/* ===== Mobile Bottom Tab ===== */
.bottom-tab-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #fff;
  border-top: 1px solid var(--border);
  z-index: 999;
  padding-bottom: env(safe-area-inset-bottom);
}
.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
  transition: color 0.25s;
}
.tab-item i {
  font-size: 20px;
  line-height: 1;
}
.tab-item.active {
  color: var(--primary);
  font-weight: 700;
}
.tab-item.active i {
  color: var(--accent);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .desktop-nav { gap: 20px; }
  .intro-grid { gap: 40px; }
  .cta-card { padding: 48px 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .desktop-nav { display: none; }
  .header-right { display: none; }
  .header-inner { height: 64px; justify-content: space-between; }
  .bottom-tab-nav { display: flex; }
  body { padding-bottom: 64px; }

  .page-banner { min-height: 380px; }
  .banner-content { padding: 60px 0; }
  .banner-content h1 { font-size: 30px; }
  .banner-content p { font-size: 15px; }
  .banner-tag { font-size: 13px; padding: 6px 14px; }

  .intro-grid { grid-template-columns: 1fr; gap: 36px; }
  .intro-image img { aspect-ratio: 4 / 3; }
  .float-badge { left: 12px; bottom: 16px; padding: 12px 16px; }
  .float-badge-num { font-size: 26px; }

  .section-head h2 { font-size: 24px; }
  .tips-grid { grid-template-columns: 1fr; gap: 16px; }
  .tip-card { padding: 22px 20px; }
  .tip-icon { width: 46px; height: 46px; font-size: 20px; }

  .faq-item summary { padding: 18px 18px; font-size: 15px; }
  .faq-answer { padding: 16px 18px 18px; font-size: 14px; }

  .cta-section { padding-top: 0; }
  .cta-card { flex-direction: column; padding: 40px 24px; text-align: center; }
  .cta-content h2 { font-size: 24px; }
  .cta-content p { margin: 0 auto; }
  .cta-actions { width: 100%; flex-direction: column; align-items: stretch; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { font-size: 12px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 0 16px; }
  .logo-text { font-size: 18px; }
  .logo-mark { width: 36px; height: 36px; font-size: 18px; }
  .banner-content h1 { font-size: 26px; }
  .page-banner { min-height: 340px; }
  .banner-content p { font-size: 14px; }
  .section-head h2 { font-size: 22px; }
  .intro-text h2 { font-size: 24px; }
  .cta-card { padding: 32px 20px; }
  .cta-actions .btn { width: 100%; }
}

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

/* roulang page: category3 */
:root {
  --primary: #0F766E;
  --primary-light: #14B8A6;
  --primary-gradient: linear-gradient(135deg, #0F766E 0%, #14B8A6 100%);
  --accent: #F97316;
  --accent-light: #F59E0B;
  --accent-gradient: linear-gradient(135deg, #F97316, #F59E0B);
  --bg: #F7F5F2;
  --bg-card: #ffffff;
  --bg-soft: #E8F5F0;
  --text: #1C2A2A;
  --text-muted: #5B6B6A;
  --text-light: #8A9B98;
  --border: #E2ECE9;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 24px rgba(15, 118, 110, 0.08);
  --shadow-md: 0 12px 40px rgba(15, 118, 110, 0.14);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "DIN Alternate", "Roboto Mono", "Bahnschrift", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }

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

.container-narrow {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-gradient);
  color: #fff;
  font-size: 20px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(15, 118, 110, 0.25);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

.logo-text em {
  font-style: normal;
  color: var(--accent);
  font-weight: 900;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.desktop-nav .nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  position: relative;
  transition: color .25s ease, background .25s ease;
}

.desktop-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}

.desktop-nav .nav-link:hover {
  color: var(--accent);
}

.desktop-nav .nav-link:hover::after,
.desktop-nav .nav-link.active::after {
  transform: scaleX(1);
}

.desktop-nav .nav-link.active {
  color: var(--primary);
  font-weight: 700;
  background: rgba(15, 118, 110, 0.06);
}

.nav-cta {
  margin-left: 12px;
  padding: 10px 22px;
  font-size: 14px;
  font-weight: 700 !important;
  border-radius: 12px !important;
  background: var(--accent-gradient);
  color: #fff !important;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease !important;
}

.nav-cta::after { display: none !important; }
.nav-cta:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.35);
}

.nav-cta:active {
  transform: translateY(0);
}

.nav-cta:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.4);
  outline-offset: 2px;
}

.header-right {
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

/* ===== Banner ===== */
.page-banner {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 118, 110, 0.9), rgba(20, 184, 166, 0.78)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: 88px 24px 92px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -160px;
  right: -100px;
}

.page-banner::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  bottom: -140px;
  left: -80px;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3px;
  margin-bottom: 22px;
  backdrop-filter: blur(4px);
}

.page-banner h1 {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.page-banner h1 span {
  color: #FDE68A;
  position: relative;
}

.banner-sub {
  font-size: 16px;
  line-height: 1.8;
  opacity: 0.94;
  max-width: 600px;
  margin: 0 auto;
}

.banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 28px;
}

.banner-tags span {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
}

/* ===== Page TOC ===== */
.main-content {
  padding: 56px 0 88px;
}

.page-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 56px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}

.page-toc-title {
  width: 100%;
  text-align: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.page-toc a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  transition: all .25s ease;
}

.page-toc a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15, 118, 110, 0.2);
}

.page-toc a:active {
  transform: translateY(0);
}

/* ===== Section Head ===== */
.section-head {
  margin-bottom: 36px;
}

.section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--bg-soft);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.section-head h2 {
  font-size: 30px;
  font-weight: 900;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: 0.5px;
}

.section-head p {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 15px;
  max-width: 640px;
}

/* ===== Compare Section ===== */
.compare-block {
  margin-bottom: 64px;
  scroll-margin-top: 90px;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: stretch;
}

.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, transform .25s ease;
}

.channel-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.channel-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.channel-card h3 .icon-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.channel-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.channel-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.channel-item:first-child {
  padding-top: 0;
}

.channel-item .channel-num {
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  background: #FFF4ED;
  border-radius: 8px;
  padding: 2px 10px;
  height: 28px;
  flex-shrink: 0;
  line-height: 28px;
}

.channel-item h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.channel-item p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.tip-box {
  background: #FFF7ED;
  border: 1px solid #FED7AA;
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.06);
}

.tip-box .tip-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--accent-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 6px 16px rgba(249, 115, 22, 0.3);
}

.tip-box h3 {
  font-size: 19px;
  font-weight: 800;
  color: #C2410C;
  margin-bottom: 14px;
}

.tip-box ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tip-box ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #7C3A0C;
  line-height: 1.6;
}

.tip-box ul li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 9px;
}

/* ===== Notice Overview ===== */
.notice-block {
  margin-bottom: 64px;
  scroll-margin-top: 90px;
  background: var(--bg-soft);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.notice-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 8px;
}

.notice-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: box-shadow .25s ease, transform .25s ease;
}

.notice-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.3);
}

.notice-card .notice-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

.notice-card:nth-child(2) .notice-icon {
  background: #FFF7ED;
}

.notice-card:nth-child(3) .notice-icon {
  background: #EFF6FF;
}

.notice-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.notice-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

.notice-note {
  margin-top: 26px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px dashed rgba(15, 118, 110, 0.3);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 14px;
  color: var(--primary);
  line-height: 1.7;
}

/* ===== Steps ===== */
.steps-block {
  margin-bottom: 64px;
  scroll-margin-top: 90px;
}

.steps-timeline {
  position: relative;
  margin-top: 12px;
}

.steps-timeline::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(to bottom, var(--primary-light), var(--primary));
  border-radius: 2px;
  opacity: 0.35;
}

.step-item {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: var(--primary-gradient);
  color: #fff;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(15, 118, 110, 0.25);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.step-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  flex: 1;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s ease, border-color .25s ease;
}

.step-content:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(15, 118, 110, 0.3);
}

.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Full Image ===== */
.full-image {
  margin-bottom: 64px;
}

.full-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.full-image figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-light);
  margin-top: 12px;
}

/* ===== FAQ ===== */
.faq-block {
  margin-bottom: 64px;
  scroll-margin-top: 90px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item:hover {
  border-color: rgba(15, 118, 110, 0.3);
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  border-color: rgba(15, 118, 110, 0.4);
  box-shadow: var(--shadow-sm);
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  font-family: var(--font-main);
  transition: color .25s ease;
}

.faq-q:hover {
  color: var(--primary);
}

.faq-q .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .3s ease, background .3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-a-inner {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  margin: 0 24px 0 24px;
  padding: 16px 0 20px;
}

/* ===== CTA ===== */
.cta-section {
  scroll-margin-top: 90px;
}

.cta-box {
  background: var(--primary-gradient);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(15, 118, 110, 0.25);
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  top: -100px;
  right: 60px;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  bottom: -60px;
  left: 30%;
}

.cta-box h2 {
  font-size: 28px;
  font-weight: 900;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 10px;
  position: relative;
  z-index: 2;
}

.cta-box p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 480px;
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease, background .25s ease;
  text-decoration: none;
  font-family: var(--font-main);
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 6px 18px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
  color: #fff;
  box-shadow: 0 10px 26px rgba(249, 115, 22, 0.38);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.4);
  outline-offset: 2px;
}

.btn-outline-light {
  background: transparent;
  border: 2px solid rgba(255, 255, 255, 0.8);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-light:active {
  transform: translateY(0);
}

.btn-outline-light:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.4);
  outline-offset: 2px;
}

/* ===== Footer ===== */
.site-footer {
  background: #0B4F4A;
  color: rgba(255, 255, 255, 0.85);
  padding: 64px 0 28px;
}

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 44px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.footer-logo:hover {
  color: #fff;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.7);
  max-width: 300px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  transition: color .25s ease, padding-left .25s ease;
}

.footer-col ul li a:hover {
  color: #FDE68A;
  padding-left: 4px;
}

.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom p {
  line-height: 1.7;
}

/* ===== Mobile Tabbar ===== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: #fff;
  border-top: 1px solid var(--border);
  z-index: 1000;
  padding: 6px 8px;
  box-shadow: 0 -4px 20px rgba(15, 118, 110, 0.06);
}

.tabbar-inner {
  max-width: 480px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  height: 100%;
}

.tabbar-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: var(--text-light);
  font-size: 11px;
  font-weight: 500;
  border-radius: 10px;
  transition: color .25s ease, background .25s ease;
  text-decoration: none;
}

.tabbar-item svg {
  width: 22px;
  height: 22px;
  stroke-width: 2;
}

.tabbar-item.active {
  color: var(--primary);
  font-weight: 700;
  background: rgba(15, 118, 110, 0.06);
}

.tabbar-item.tabbar-cta {
  color: #fff;
  background: var(--accent-gradient);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

.tabbar-item.tabbar-cta.active {
  color: #fff;
  background: var(--accent-gradient);
  box-shadow: 0 4px 14px rgba(249, 115, 22, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .desktop-nav .nav-link {
    padding: 8px 10px;
    font-size: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr !important;
  }
  .notice-card-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
  }

  .header-right {
    display: none !important;
  }

  .header-inner {
    height: 60px;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
    font-size: 18px;
    border-radius: 10px;
  }

  .logo-text {
    font-size: 18px;
  }

  body {
    padding-bottom: 64px;
  }

  .mobile-tabbar {
    display: block;
  }

  .page-banner {
    padding: 64px 20px 68px;
  }

  .page-banner h1 {
    font-size: 28px;
  }

  .banner-sub {
    font-size: 15px;
  }

  .main-content {
    padding: 40px 0 60px;
  }

  .compare-grid {
    grid-template-columns: 1fr;
  }

  .notice-block {
    padding: 32px 24px;
  }

  .notice-card-list {
    grid-template-columns: 1fr;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .cta-box {
    flex-direction: column;
    padding: 40px 28px;
    text-align: center;
  }

  .cta-actions {
    align-items: center;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .full-image img {
    height: 220px;
  }

  .step-item {
    gap: 16px;
  }

  .step-number {
    width: 48px;
    height: 48px;
    font-size: 17px;
    border-radius: 14px;
  }

  .steps-timeline::before {
    left: 23px;
  }

  .footer-grid {
    grid-template-columns: 1fr !important;
    gap: 32px;
  }

  .footer-bottom {
    font-size: 12px;
  }

  .page-toc {
    padding: 16px;
    gap: 10px;
  }

  .page-toc a {
    padding: 8px 14px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .container-narrow {
    padding: 0 16px;
  }

  .page-banner h1 {
    font-size: 25px;
  }

  .banner-tags {
    gap: 8px;
  }

  .banner-tags span {
    font-size: 12px;
    padding: 3px 10px;
  }

  .channel-card {
    padding: 24px 20px;
  }

  .tip-box {
    padding: 24px 20px;
  }

  .step-content {
    padding: 18px 18px;
  }

  .step-content h3 {
    font-size: 16px;
  }

  .faq-q {
    padding: 18px 18px;
    font-size: 15px;
  }

  .faq-a-inner {
    margin: 0 18px;
    padding: 14px 0 18px;
  }

  .cta-box h2 {
    font-size: 22px;
  }
}