/* roulang page: index */
:root {
  --primary: #0D3B2E;
  --primary-dark: #082A20;
  --accent: #F25C3A;
  --accent-dark: #D9431F;
  --secondary: #C9A24B;
  --paper: #F5F1E8;
  --field: #E8F0EC;
  --ink: #1C2B26;
  --muted: #5C6E68;
  --border: rgba(13,59,46,.10);
  --shadow-xs: 0 1px 3px rgba(13,59,46,.04);
  --shadow-sm: 0 2px 8px rgba(13,59,46,.06);
  --shadow-md: 0 8px 24px rgba(13,59,46,.12);
  --shadow-lg: 0 16px 48px rgba(13,59,46,.18);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-sans: "PingFang SC","Source Han Sans SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono: "DIN Alternate","Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--paper);color:var(--ink);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:var(--primary);transition:color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit;outline:none}
ul,ol{list-style:none}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.row{max-width:1280px;margin:0 auto}
.section{padding:clamp(3rem,7vw,6rem) 0}
.section-head{margin-bottom:2.5rem}
.section-label{color:var(--secondary);font-size:.875rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;display:block;margin-bottom:.5rem}
.section-title{font-size:clamp(1.5rem,3vw,1.875rem);font-weight:700;color:var(--primary);line-height:1.35;padding-left:18px;border-left:4px solid var(--secondary);margin-bottom:.6rem}
.section-sub{color:var(--muted);font-size:.9375rem;max-width:640px}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-md);font-weight:700;font-size:1rem;padding:14px 36px;transition:all .25s ease;border:2px solid transparent;line-height:1.2}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(242,92,58,.3)}
.btn-primary:focus-visible{outline:3px solid rgba(242,92,58,.35);outline-offset:2px}
.btn-outline{border-color:var(--primary);background:transparent;color:var(--primary)}
.btn-outline:hover{background:rgba(13,59,46,.05);border-color:var(--primary);color:var(--primary)}
.btn-outline:focus-visible{outline:3px solid rgba(13,59,46,.2);outline-offset:2px}
.btn-sm{padding:10px 22px;font-size:.875rem;border-radius:10px}
.btn-lg{padding:16px 48px;font-size:1.0625rem}
.btn:active{transform:translateY(1px);box-shadow:none}

/* Header */
.site-header{background:var(--primary);position:sticky;top:0;z-index:1000;box-shadow:0 4px 20px rgba(13,59,46,.25)}
.header-row{display:flex;align-items:center;gap:20px;height:72px}
.logo-col{flex-shrink:0}
.brand-logo{display:flex;align-items:center;gap:10px}
.brand-mark{width:38px;height:38px;background:linear-gradient(135deg,var(--accent),#FF7A54);border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:900;font-size:1.125rem;box-shadow:0 2px 8px rgba(242,92,58,.4)}
.brand-text{font-size:1.25rem;font-weight:800;color:#fff;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:.72rem;background:rgba(255,255,255,.15);padding:2px 8px;border-radius:20px;margin-left:6px;color:rgba(255,255,255,.85);font-weight:600}
.search-col{flex:1;max-width:460px}
.search-box{display:flex;align-items:center;background:var(--field);border-radius:var(--radius-md);height:44px;padding:0 6px 0 14px;border:1px solid transparent;transition:all .25s}
.search-box .search-icon{color:rgba(13,59,46,.6);font-size:1rem;margin-right:8px;flex-shrink:0}
.search-box input{flex:1;background:transparent;border:none;height:100%;font-size:.875rem;color:var(--ink);width:100%}
.search-box input::placeholder{color:var(--muted)}
.search-box input:focus{background:transparent}
.search-box:focus-within{background:#fff;border-color:rgba(13,59,46,.35);box-shadow:0 0 0 3px rgba(13,59,46,.08)}
.search-divider{width:1px;height:20px;background:rgba(13,59,46,.15);margin:0 10px}
.search-btn{background:transparent;color:var(--primary);font-weight:700;font-size:.875rem;padding:0 14px;height:32px;border-radius:8px;transition:background .2s}
.search-btn:hover{background:rgba(13,59,46,.06)}
.nav-col{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{color:rgba(255,255,255,.82);font-size:.875rem;font-weight:600;padding:8px 10px;border-radius:8px;position:relative;transition:color .2s}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link.active{color:#fff}
.nav-link.active::after{content:'';position:absolute;left:10px;right:10px;bottom:-3px;height:3px;background:var(--accent);border-radius:3px}
.cta-col{flex-shrink:0}
.header-cta-btn{background:var(--accent);color:#fff;font-weight:700;font-size:.875rem;padding:9px 22px;border-radius:10px;transition:all .25s;display:inline-block}
.header-cta-btn:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.menu-toggle{display:none;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;border-radius:10px;background:rgba(255,255,255,.08)}
.menu-toggle span{width:20px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Hero */
.hero-section{position:relative;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;color:#fff}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(105deg,rgba(13,59,46,.92) 20%,rgba(13,59,46,.65) 55%,rgba(13,59,46,.45))}
.hero-content{position:relative;z-index:2;padding:clamp(3.5rem,8vw,6rem) 0 clamp(5rem,9vw,7rem)}
.hero-grid{display:flex;gap:48px;align-items:center}
.hero-copy{flex:1.15}
.hero-title{font-size:clamp(2.25rem,4.5vw,3.5rem);font-weight:900;line-height:1.2;letter-spacing:.01em;margin-bottom:1rem}
.hero-title span{color:var(--secondary)}
.hero-subtitle{font-size:1.0625rem;color:rgba(255,255,255,.85);line-height:1.8;max-width:560px;margin-bottom:2rem}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:2.2rem}
.hero-trust{display:flex;gap:32px;border-top:1px solid rgba(201,162,75,.3);padding-top:1.2rem;max-width:560px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:.875rem;color:rgba(255,255,255,.8)}
.trust-item i{color:var(--secondary);font-size:.8125rem}
.hero-cards{flex:1;display:flex;flex-direction:column;gap:20px}
.hero-info-card{background:rgba(255,255,255,.1);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-lg);padding:24px;display:flex;align-items:center;gap:16px;box-shadow:var(--shadow-lg)}
.hero-info-card .ic{width:52px;height:52px;background:linear-gradient(135deg,var(--accent),#FF8A5C);border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.4rem;flex-shrink:0}
.hero-info-card .ic-title{color:#fff;font-weight:700;font-size:1.0625rem;margin-bottom:2px}
.hero-info-card .ic-sub{color:rgba(255,255,255,.7);font-size:.8125rem}
.hero-quick-card{background:rgba(255,255,255,.09);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.15);border-radius:var(--radius-lg);padding:20px}
.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.quick-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-md);background:rgba(255,255,255,.07);color:#fff;font-size:.8125rem;font-weight:600;transition:all .2s}
.quick-item i{color:var(--secondary);font-size:.9375rem}
.quick-item:hover{background:rgba(242,92,58,.2);color:#fff;transform:translateY(-2px)}

/* Stats */
.stats-section{margin-top:-40px;position:relative;z-index:3;padding-bottom:0}
.stats-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:2rem 1.5rem;display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem}
.stat-item{text-align:center;padding:0 1rem;position:relative}
.stat-item::after{content:'';position:absolute;bottom:-8px;left:12%;right:12%;height:1px;background:linear-gradient(90deg,transparent,var(--secondary),transparent)}
.stat-value{font-family:var(--font-mono);font-size:clamp(1.75rem,2.5vw,2.5rem);font-weight:800;color:var(--accent);line-height:1.2}
.stat-label{font-size:.875rem;color:var(--muted);margin-top:4px}
.stat-note{font-size:.75rem;color:var(--secondary);margin-top:2px;letter-spacing:.03em}

/* Steps */
.steps-section{background:var(--paper);padding-top:clamp(3rem,7vw,5rem)}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:2.5rem}
.step-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:2rem;transition:all .3s;position:relative;overflow:hidden}
.step-card:nth-child(2){background:var(--field)}
.step-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:rgba(242,92,58,.3)}
.step-num{font-family:var(--font-mono);font-size:2.5rem;font-weight:800;color:var(--primary);opacity:.15;position:absolute;top:1.2rem;right:1.5rem}
.step-icon{width:48px;height:48px;background:var(--primary);border-radius:14px;display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:1.1rem;margin-bottom:1.2rem}
.step-card h3{font-size:1.25rem;font-weight:700;color:var(--primary);margin-bottom:.6rem}
.step-card p{color:var(--muted);font-size:.875rem;line-height:1.7}
.step-arrow{display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:1.2rem;margin-top:2rem}

/* Cases */
.cases-section{background:var(--paper)}
.cases-layout{display:grid;grid-template-columns:1.3fr 1fr;gap:24px;margin-top:2.5rem}
.case-main-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--border);transition:all .3s}
.case-main-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.case-cover-main{position:relative;height:240px;overflow:hidden}
.case-cover-main img{width:100%;height:100%;object-fit:cover}
.case-tag{position:absolute;top:14px;left:14px;background:var(--secondary);color:#fff;font-size:.75rem;font-weight:700;padding:4px 12px;border-radius:20px}
.case-body{padding:1.75rem}
.case-body h3{font-size:1.25rem;font-weight:700;color:var(--primary);margin-bottom:.6rem}
.case-body p{color:var(--muted);font-size:.875rem;line-height:1.7;margin-bottom:1rem}
.case-link{font-weight:600;font-size:.875rem;color:var(--accent)}
.case-link i{margin-left:4px}
.case-mini-list{display:flex;flex-direction:column;gap:20px}
.case-mini{background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);border:1px solid var(--border);padding:1.25rem;display:flex;gap:14px;align-items:center;transition:all .3s;border-left:4px solid transparent}
.case-mini:hover{border-left-color:var(--accent);box-shadow:var(--shadow-md);transform:translateX(4px)}
.case-mini img{width:72px;height:72px;object-fit:cover;border-radius:10px;flex-shrink:0}
.case-mini-body{flex:1}
.case-mini-body h4{font-size:.9375rem;font-weight:700;color:var(--primary);margin-bottom:4px;line-height:1.4}
.case-metric{font-size:.8125rem;color:var(--secondary);font-family:var(--font-mono);font-weight:700}

/* News */
.news-section{background:var(--field)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:2.5rem}
.news-card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;border:1px solid var(--border);transition:all .3s;display:flex;flex-direction:column}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:rgba(242,92,58,.3)}
.news-thumb{display:block;width:100%;height:180px;overflow:hidden;position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-tag{position:absolute;top:12px;left:12px;background:rgba(13,59,46,.85);color:#fff;font-size:.75rem;font-weight:600;padding:3px 12px;border-radius:20px;backdrop-filter:blur(4px)}
.news-body{padding:1.4rem 1.5rem 1.5rem;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:1.0625rem;font-weight:700;color:var(--primary);line-height:1.45;margin-bottom:.5rem}
.news-body h3 a{color:inherit}
.news-body h3 a:hover{color:var(--accent)}
.news-summary{font-size:.8125rem;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:1rem;flex:1}
.news-meta{display:flex;justify-content:space-between;align-items:center;padding-top:.75rem;border-top:1px solid var(--border);font-size:.75rem}
.news-date{color:var(--muted)}
.news-link{font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:4px}
.empty-state{grid-column:1/-1;text-align:center;padding:4rem 2rem;background:#fff;border-radius:var(--radius-lg);border:1px dashed var(--border)}
.empty-state .es-icon{width:64px;height:64px;background:var(--field);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--secondary);font-size:1.5rem;margin:0 auto 1rem}
.empty-state p{color:var(--muted);font-size:.9375rem;margin-bottom:1.2rem}

/* FAQ */
.faq-section{background:var(--paper)}
.faq-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:48px;margin-top:2rem}
.faq-side .section-title{margin-bottom:1rem}
.faq-contact-note{background:var(--field);border-radius:var(--radius-md);padding:1.2rem 1.5rem;font-size:.8125rem;color:var(--muted);line-height:1.7;margin-top:1.5rem}
.faq-group{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border);overflow:hidden}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:none}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.5rem;font-size:.9375rem;font-weight:700;color:var(--primary);text-align:left;transition:all .2s;gap:12px}
.faq-question:hover{color:var(--accent)}
.faq-icon{width:20px;height:20px;flex-shrink:0;position:relative;display:flex;align-items:center;justify-content:center}
.faq-icon::before{content:'';width:14px;height:2px;background:var(--secondary);border-radius:2px;transition:transform .2s}
.faq-icon::after{content:'';width:2px;height:14px;background:var(--secondary);border-radius:2px;position:absolute;transition:transform .2s}
.faq-item.active .faq-icon::before{transform:rotate(180deg)}
.faq-item.active .faq-icon::after{transform:rotate(90deg)}
.faq-item.active .faq-question{color:var(--accent)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-answer-inner{padding:0 1.5rem 1.2rem;color:var(--muted);font-size:.875rem;line-height:1.8;text-indent:2em}

/* CTA */
.cta-section{background:var(--primary);position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--secondary),transparent)}
.cta-inner{text-align:center;padding:clamp(3.5rem,7vw,5.5rem) 0}
.cta-inner h2{color:#fff;font-size:clamp(1.5rem,3vw,2.125rem);font-weight:800;margin-bottom:.75rem}
.cta-inner p{color:rgba(255,255,255,.7);font-size:1rem;margin-bottom:2rem;max-width:520px;margin-left:auto;margin-right:auto}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-bottom:1.5rem;flex-wrap:wrap}
.cta-trust{font-size:.8125rem;color:rgba(255,255,255,.55);letter-spacing:.05em}
.cta-trust span{margin:0 6px}
.cta-trust i{color:var(--secondary);margin-right:4px}

/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.7)}
.footer-main{padding:3.5rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:32px}
.footer-brand .brand-logo{margin-bottom:1rem}
.footer-brand p{font-size:.8125rem;line-height:1.7;color:rgba(255,255,255,.6);max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:1.2rem}
.footer-social a{width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.6);font-size:.9375rem;transition:all .2s}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}
.footer-title{font-size:.875rem;font-weight:700;color:#fff;margin-bottom:1rem}
.footer-title::after{content:'';display:block;width:28px;height:2px;background:var(--secondary);margin-top:.35rem}
.footer-links li{margin-bottom:.5rem}
.footer-links a{color:rgba(255,255,255,.6);font-size:.8125rem;transition:color .2s}
.footer-links a:hover{color:var(--secondary)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:.75rem;font-size:.8125rem;color:rgba(255,255,255,.6)}
.footer-contact i{color:var(--secondary);margin-top:2px;width:16px;text-align:center}
.footer-bottom{border-top:1px solid rgba(201,162,75,.2);padding:1.2rem 0;text-align:center;font-size:.8125rem;color:rgba(255,255,255,.4)}

/* Responsive */
@media (max-width: 1023.98px) {
  .header-row{height:auto;flex-wrap:wrap;padding:12px 0;gap:12px}
  .search-col{order:3;flex-basis:100%;max-width:100%}
  .nav-col{margin-left:auto;order:2}
  .cta-col{order:2}
  .menu-toggle{display:none}
  .hero-grid{flex-direction:column;gap:36px}
  .hero-copy{flex:1}
  .hero-cards{width:100%;max-width:480px}
  .steps-grid{grid-template-columns:repeat(3,1fr);gap:16px}
  .step-card{padding:1.5rem}
  .cases-layout{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:2fr 1fr 1fr 2fr}
}
@media (max-width: 767.98px) {
  .header-row{flex-wrap:wrap;gap:10px;padding:10px 0}
  .logo-col{flex:1}
  .menu-toggle{display:flex;order:3}
  .search-col{order:2;flex-basis:100%;max-width:100%}
  .cta-col{display:none}
  .nav-col{display:none;order:4;flex-basis:100%;flex-direction:column;background:rgba(255,255,255,.04);border-radius:var(--radius-md);padding:10px;gap:4px;margin-left:0}
  .nav-col.open{display:flex}
  .nav-link{padding:10px 14px;width:100%;border-radius:8px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(242,92,58,.18)}
  .brand-text{font-size:1.0625rem}
  .brand-mark{width:34px;height:34px;font-size:1rem}
  .hero-title{font-size:clamp(1.75rem,4vw,2.25rem)}
  .hero-subtitle{font-size:.9375rem}
  .hero-trust{flex-wrap:wrap;gap:14px}
  .stats-card{grid-template-columns:repeat(2,1fr);gap:1.2rem}
  .stat-item{padding:.5rem}
  .steps-grid{grid-template-columns:1fr}
  .step-arrow{display:none}
  .case-cover-main{height:180px}
  .case-mini img{width:56px;height:56px}
  .news-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .cta-actions{flex-direction:column;align-items:center}
  .btn-lg{width:100%;text-align:center}
}
@media (max-width: 639.98px) {
  .container{padding:0 16px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .stats-card{gap:.8rem;padding:1.5rem 1rem}
  .stat-value{font-size:1.375rem}
  .btn{padding:12px 24px;font-size:.9375rem}
}
@media (max-width: 479.98px) {
  .brand-text em{display:none}
  .search-box{padding-left:10px}
  .search-divider{display:none}
  .search-btn{padding:0 10px}
  .news-thumb{height:150px}
}

/* roulang page: category1 */
:root{
  --primary:#0D3B2E;
  --primary-dark:#092B21;
  --primary-light:#145243;
  --accent:#F25C3A;
  --accent-dark:#D9431F;
  --secondary:#C9A24B;
  --paper:#F5F1E8;
  --field:#E8F0EC;
  --white:#ffffff;
  --ink:#1C2B26;
  --muted:#5C6E68;
  --border:rgba(13,59,46,.10);
  --border-hover:rgba(242,92,58,.4);
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(13,59,46,.06);
  --shadow-md:0 8px 24px rgba(13,59,46,.12);
  --shadow-lg:0 16px 48px rgba(13,59,46,.18);
  --font-family:"PingFang SC","Source Han Sans SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"DIN Alternate","Roboto Mono",monospace;
  --space-section:clamp(3rem,7vw,5.5rem);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--paper);color:var(--ink);line-height:1.7;font-size:16px;text-align:left}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
/* ===== 导航 ===== */
.site-header{background:var(--primary);position:sticky;top:0;z-index:100;box-shadow:0 4px 20px rgba(13,59,46,.18)}
.nav-wrap{display:flex;align-items:center;gap:16px;height:72px}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;min-width:0}
.brand-mark{width:38px;height:38px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px;flex-shrink:0}
.brand-text{font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px;white-space:nowrap}
.brand-text em{font-style:normal;font-size:13px;font-weight:400;color:rgba(255,255,255,.7);margin-left:4px}
.search-box{display:flex;align-items:center;background:var(--field);border-radius:var(--radius-md);height:44px;padding:0 12px;flex:1;max-width:420px;min-width:180px;border:1px solid transparent;transition:all .25s ease}
.search-box:focus-within{background:#fff;border-color:rgba(13,59,46,.35);box-shadow:0 0 0 3px rgba(13,59,46,.12)}
.search-box svg{width:18px;height:18px;stroke:rgba(13,59,46,.6);flex-shrink:0}
.search-box input{border:none;outline:none;background:transparent;font-size:14px;color:var(--ink);width:100%;padding:0 10px}
.search-box input::placeholder{color:var(--muted)}
.search-divider{width:1px;height:22px;background:rgba(13,59,46,.15)}
.search-btn{border:none;background:transparent;color:var(--primary);font-size:14px;font-weight:600;padding:0 4px 0 10px;transition:color .2s}
.search-btn:hover{color:var(--accent)}
.nav-col{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{display:block;padding:10px 14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.85);border-radius:var(--radius-sm);position:relative;transition:all .2s;white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-link.active{color:#fff;font-weight:600}
.nav-link.active::after{content:'';position:absolute;left:14px;right:14px;bottom:3px;height:3px;background:var(--accent);border-radius:2px}
.btn-header{background:var(--accent);color:#fff;font-size:14px;font-weight:700;padding:10px 20px;border-radius:18px;white-space:nowrap;transition:background .2s,box-shadow .2s,transform .2s}
.btn-header:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 6px 16px rgba(242,92,58,.35)}
.menu-toggle{display:none;background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:var(--radius-sm);width:40px;height:40px;align-items:center;justify-content:center;color:#fff;font-size:18px}
/* ===== 页面页头 ===== */
.page-hero{position:relative;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:clamp(2.5rem,6vw,5rem) 0;color:#fff}
.page-hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(100deg,rgba(13,59,46,.92),rgba(13,59,46,.68) 60%,rgba(13,59,46,.4))}
.page-hero .container{position:relative;z-index:2}
.hero-grid{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.page-hero h1{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:800;line-height:1.25;margin-bottom:16px;max-width:560px}
.page-hero h1 span{color:var(--accent)}
.page-hero p{font-size:clamp(.95rem,1.2vw,1.1rem);line-height:1.75;color:rgba(255,255,255,.9);max-width:540px;margin-bottom:0}
.hero-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:#fff;font-size:16px;font-weight:700;padding:14px 36px;border-radius:var(--radius-md);border:none;transition:background .2s,transform .2s,box-shadow .2s;line-height:1.2}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(242,92,58,.35)}
.btn-primary:focus-visible,.btn-secondary:focus-visible{outline:3px solid rgba(242,92,58,.35);outline-offset:2px}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.5);color:#fff;font-size:16px;font-weight:600;padding:14px 36px;border-radius:var(--radius-md);transition:background .2s,transform .2s}
.btn-secondary:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-2px)}
/* ===== 数据徽章 ===== */
.badge-strip{position:relative;z-index:5;margin-top:-36px;padding:0 20px}
.badge-card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:28px 30px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;max-width:1200px;margin:0 auto;border:1px solid var(--border)}
.badge-item{flex:1;min-width:160px;text-align:center;padding:10px 8px;position:relative}
.badge-item::before{content:'';position:absolute;left:0;top:10px;bottom:10px;width:1px;background:rgba(13,59,46,.06)}
.badge-item:first-child::before{display:none}
.badge-num{font-family:var(--font-mono);font-size:clamp(1.75rem,2.5vw,2.5rem);font-weight:800;color:var(--accent);line-height:1.2}
.badge-label{display:block;font-size:14px;color:var(--muted);margin-top:6px;font-weight:500}
.badge-divider{width:60px;height:2px;background:var(--secondary);margin:8px auto 0;border-radius:2px;opacity:.6}
/* ===== 分类切换 ===== */
.cat-tabs-wrap{padding:clamp(1.5rem,3vw,2.5rem) 0 .5rem}
.cat-tabs{display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px;scrollbar-width:none;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.cat-tabs::-webkit-scrollbar{display:none}
.cat-tab{display:inline-flex;align-items:center;background:var(--white);border:1px solid var(--border);color:var(--primary);font-size:14px;font-weight:600;padding:9px 22px;border-radius:20px;transition:all .2s;white-space:nowrap}
.cat-tab:hover{border-color:var(--border-hover);color:var(--accent);transform:translateY(-1px)}
.cat-tab.active{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 4px 12px rgba(242,92,58,.3)}
/* ===== 板块标题 ===== */
.section{padding:var(--space-section) 0}
.section-head{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-title{font-size:clamp(1.5rem,2vw,1.875rem);font-weight:700;color:var(--primary);position:relative;padding-left:18px;line-height:1.3}
.section-title::before{content:'';position:absolute;left:0;top:6px;bottom:6px;width:4px;height:calc(100% - 12px);background:var(--secondary);border-radius:2px}
.section-sub{font-size:15px;color:var(--muted);max-width:420px;text-align:right;line-height:1.6}
/* ===== 核心卖点卡片 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:1200px;margin:0 auto;padding:0 20px}
.feature-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px 24px;transition:all .3s ease;position:relative;overflow:hidden}
.feature-card::after{content:'';position:absolute;top:0;left:0;width:4px;height:0;background:var(--accent);transition:height .3s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-hover)}
.feature-card:hover::after{height:100%}
.feature-icon{width:52px;height:52px;border-radius:var(--radius-md);background:var(--field);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:22px;margin-bottom:18px;transition:background .2s,color .2s}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff}
.feature-card h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--muted);line-height:1.7}
/* ===== 主内容两栏 ===== */
.main-content{padding:0 0 var(--space-section)}
.content-grid{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1fr 340px;gap:28px}
.list-card{display:flex;gap:20px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;transition:all .3s;align-items:flex-start}
.list-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.list-card .thumb{width:160px;height:110px;border-radius:var(--radius-md);object-fit:cover;flex-shrink:0}
.list-card .content{flex:1;min-width:0}
.list-card .tag{display:inline-block;background:rgba(201,162,75,.12);color:var(--secondary);font-size:12px;font-weight:600;padding:3px 12px;border-radius:4px;margin-bottom:8px}
.list-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.4}
.list-card p{font-size:14px;color:var(--muted);line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.list-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.list-meta a{color:var(--primary);font-weight:600}
.list-meta a:hover{color:var(--accent)}
.list-stack{display:flex;flex-direction:column;gap:18px}
/* ===== 侧栏 ===== */
.sidebar{display:flex;flex-direction:column;gap:24px}
.rank-card{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);padding:24px}
.rank-card h3{font-size:16px;font-weight:700;color:var(--primary);margin-bottom:18px;position:relative;padding-bottom:10px}
.rank-card h3::after{content:'';position:absolute;bottom:0;left:0;width:36px;height:2px;background:var(--secondary)}
.rank-list{display:flex;flex-direction:column;gap:0}
.rank-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid rgba(13,59,46,.05)}
.rank-item:last-child{border-bottom:none}
.rank-num{font-family:var(--font-mono);font-size:20px;font-weight:800;color:var(--secondary);width:32px;text-align:center;flex-shrink:0}
.rank-item .rank-text{font-size:14px;color:var(--ink);line-height:1.4;font-weight:500}
.rank-item:hover .rank-text{color:var(--accent)}
.rank-item .rank-val{font-size:12px;color:var(--muted);white-space:nowrap}
.sidebar-cta{background:var(--primary);border-radius:var(--radius-lg);padding:30px 24px;text-align:center;color:#fff;position:relative;overflow:hidden}
.sidebar-cta::before{content:'';position:absolute;width:180px;height:180px;border-radius:50%;background:rgba(201,162,75,.12);top:-80px;right:-70px}
.sidebar-cta h3{font-size:20px;font-weight:700;margin-bottom:10px}
.sidebar-cta p{font-size:14px;color:rgba(255,255,255,.75);margin-bottom:20px;line-height:1.6}
.sidebar-cta .btn-primary{width:100%;background:var(--accent)}
.sidebar-cta .btn-primary:hover{background:var(--accent-dark)}
/* ===== 流程区 ===== */
.process-section{background:var(--field);padding:var(--space-section) 0}
.process-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;max-width:1200px;margin:0 auto;padding:0 20px}
.process-step{position:relative;background:var(--white);border-radius:var(--radius-lg);padding:32px 26px;border:1px solid var(--border);transition:all .3s}
.process-step:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.process-step .step-num{font-family:var(--font-mono);font-size:44px;font-weight:800;color:rgba(13,59,46,.14);line-height:1;margin-bottom:14px}
.process-step h3{font-size:18px;font-weight:700;color:var(--primary);margin-bottom:10px}
.process-step p{font-size:14px;color:var(--muted);line-height:1.7}
.process-line{position:absolute;top:50%;right:-14px;width:28px;height:2px;border-top:2px dashed rgba(13,59,46,.25);transform:translateY(-50%)}
.process-step:last-child .process-line{display:none}
/* ===== FAQ ===== */
.faq-grid{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:380px 1fr;gap:48px}
.faq-head .section-title{margin-bottom:16px}
.faq-head .section-sub{text-align:left;margin-bottom:28px}
.faq-head .faq-cta-btn{display:inline-flex;align-items:center;gap:8px;background:var(--white);border:1px solid var(--border);color:var(--primary);font-size:14px;font-weight:600;padding:10px 24px;border-radius:var(--radius-md);transition:all .2s}
.faq-head .faq-cta-btn:hover{border-color:var(--border-hover);color:var(--accent)}
.faq-accordion{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden}
.faq-item{border-bottom:1px solid rgba(13,59,46,.08)}
.faq-item:last-child{border-bottom:none}
.faq-question{width:100%;background:transparent;border:none;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;font-size:15px;font-weight:600;color:var(--primary);transition:color .2s}
.faq-question:hover{color:var(--accent)}
.faq-question .faq-icon{width:22px;height:22px;border-radius:50%;border:1px solid rgba(13,59,46,.2);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;transition:all .3s;color:var(--primary)}
.faq-item.active .faq-question{color:var(--accent)}
.faq-item.active .faq-icon{background:var(--accent);border-color:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-answer{display:none;padding:0 24px 20px;font-size:14px;color:var(--muted);line-height:1.75}
.faq-item.active .faq-answer{display:block}
/* ===== CTA ===== */
.cta-section{background:var(--primary);padding:clamp(3rem,6vw,5rem) 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;width:400px;height:400px;border-radius:50%;background:rgba(201,162,75,.08);top:-200px;left:-120px}
.cta-section::after{content:'';position:absolute;width:260px;height:260px;border-radius:50%;background:rgba(242,92,58,.06);bottom:-140px;right:-60px}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:clamp(1.75rem,3vw,2.25rem);font-weight:800;color:#fff;margin-bottom:12px}
.cta-section .cta-sub{font-size:16px;color:rgba(255,255,255,.75);margin-bottom:28px}
.cta-section .btn-primary{font-size:18px;padding:16px 48px}
.cta-trust{margin-top:20px;font-size:14px;color:rgba(255,255,255,.6);letter-spacing:1px}
.cta-trust span{margin:0 8px;color:var(--secondary)}
/* ===== 页脚 ===== */
.site-footer{background:var(--primary-dark);padding:60px 0 0;color:rgba(255,255,255,.7)}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(201,162,75,.2)}
.footer-brand .brand-logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:320px}
.footer-social{display:flex;gap:14px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s}
.footer-social a:hover{background:var(--accent);color:#fff}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;position:relative;padding-bottom:8px}
.footer-title::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:2px;background:var(--secondary)}
.footer-links li{margin-bottom:12px}
.footer-links a{color:rgba(255,255,255,.65);font-size:14px;transition:color .2s,padding-left .2s}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:14px;color:rgba(255,255,255,.65)}
.footer-contact i{color:var(--secondary);margin-top:4px}
.footer-bottom{text-align:center;padding:18px 0;font-size:13px;color:rgba(255,255,255,.5);border-top:1px solid rgba(201,162,75,.1)}
.footer-bottom span{color:rgba(255,255,255,.4)}
/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .nav-col{gap:2px}
  .nav-link{padding:10px 10px;font-size:14px}
  .search-box{max-width:260px}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .content-grid{grid-template-columns:1fr}
  .sidebar{flex-direction:row;flex-wrap:wrap}
  .rank-card{flex:1;min-width:260px}
  .sidebar-cta{flex:1;min-width:260px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:768px){
  .nav-wrap{flex-wrap:wrap;height:auto;padding:12px 20px;gap:10px}
  .brand-logo{order:1}
  .search-box{order:3;max-width:100%;width:100%}
  .nav-col{order:2;width:auto;margin-left:auto;display:none}
  .btn-header{order:2;padding:8px 18px;font-size:13px}
  .menu-toggle{order:2;display:flex}
  .nav-col.open{display:flex;flex-direction:column;width:100%;background:var(--primary);border-radius:var(--radius-md);padding:10px;margin-top:4px;gap:4px}
  .nav-col.open .nav-link{width:100%}
  .hero-grid{flex-direction:column;align-items:flex-start}
  .badge-card{padding:20px;flex-direction:column;gap:12px}
  .badge-item{min-width:100%;display:flex;align-items:center;justify-content:space-between;text-align:left;padding:8px 0}
  .badge-item::before{display:none}
  .badge-divider{display:none}
  .list-card{flex-direction:column}
  .list-card .thumb{width:100%;height:160px}
  .process-steps{grid-template-columns:1fr}
  .process-line{display:none}
  .faq-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .section-sub{text-align:left}
  .footer-grid{grid-template-columns:1fr}
}
@media screen and (max-width:520px){
  .feature-grid{grid-template-columns:1fr}
  .nav-wrap{padding:10px 14px}
  .brand-text{font-size:18px}
  .container,.page-hero .container,.hero-grid,.feature-grid,.content-grid,.process-steps,.faq-grid,.footer-grid,.cat-tabs{padding-left:14px;padding-right:14px}
  .btn-primary{padding:12px 28px;font-size:15px}
  .btn-secondary{padding:12px 28px;font-size:15px}
}

/* roulang page: article */
:root {
  --primary: #0D3B2E;
  --primary-light: #1A5C47;
  --primary-dark: #072A20;
  --accent: #F25C3A;
  --accent-hover: #D9431F;
  --secondary: #C9A24B;
  --paper: #F5F1E8;
  --field: #E8F0EC;
  --ink: #1C2B26;
  --muted: #5C6E68;
  --border: rgba(13, 59, 46, 0.10);
  --border-hover: rgba(242, 92, 58, 0.4);
  --shadow-sm: 0 2px 8px rgba(13, 59, 46, 0.06);
  --shadow-md: 0 8px 24px rgba(13, 59, 46, 0.12);
  --shadow-lg: 0 16px 48px rgba(13, 59, 46, 0.18);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-family: "PingFang SC", "思源黑体", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "DIN Alternate", "Roboto Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  color: var(--primary);
  font-weight: 700;
}

a { color: inherit; text-decoration: none; transition: color 0.2s ease; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.section-title-bar {
  width: 4px;
  height: 28px;
  background: var(--secondary);
  border-radius: 2px;
  flex-shrink: 0;
}
.section-title-row h3 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--primary);
}

/* ----- 按钮 ----- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-md);
  padding: 14px 36px;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(242, 92, 58, 0.3);
}
.btn-primary:focus-visible {
  outline: 3px solid rgba(242, 92, 58, 0.35);
  outline-offset: 2px;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 12px 32px;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-secondary:hover {
  background: rgba(13, 59, 46, 0.05);
  border-color: var(--accent);
  color: var(--accent);
}
.btn-secondary:focus-visible {
  outline: 3px solid rgba(242, 92, 58, 0.35);
  outline-offset: 2px;
}

/* ============ 头部导航 ============ */
.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(13, 59, 46, 0.25);
}

.nav-bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 72px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  flex-shrink: 0;
  max-width: 220px;
}
.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.125rem;
  flex-shrink: 0;
}
.brand-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}
.brand-text em {
  font-style: normal;
  color: var(--secondary);
  font-size: 0.875rem;
  font-weight: 600;
  margin-left: 2px;
}

/* 搜索区 */
.search-wrap {
  flex: 1;
  max-width: 420px;
}
.search-box {
  display: flex;
  align-items: center;
  height: 44px;
  background: var(--field);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  padding: 0 14px;
  transition: all 0.25s ease;
}
.search-box:focus-within {
  background: #fff;
  border-color: rgba(13, 59, 46, 0.35);
  box-shadow: 0 0 0 3px rgba(13, 59, 46, 0.12);
}
.search-icon {
  width: 18px;
  height: 18px;
  color: rgba(13, 59, 46, 0.6);
  flex-shrink: 0;
  margin-right: 10px;
}
.search-box input {
  flex: 1;
  min-width: 0;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.9375rem;
  color: var(--ink);
}
.search-box input::placeholder {
  color: var(--muted);
  font-size: 0.875rem;
}
.search-btn {
  border: none;
  background: transparent;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  padding: 4px 0 4px 14px;
  border-left: 1px solid rgba(13, 59, 46, 0.15);
  margin-left: 10px;
  transition: color 0.2s ease;
  flex-shrink: 0;
}
.search-btn:hover { color: var(--accent); }

/* 导航入口 */
.nav-col {
  display: flex;
  align-items: center;
  gap: 1.125rem;
  margin-left: 0.5rem;
  flex-shrink: 0;
}
.nav-link {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 24px 2px 20px;
  position: relative;
  white-space: nowrap;
  transition: color 0.2s ease;
}
.nav-link:hover { color: #fff; }
.nav-link.active { color: #fff; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
}

.nav-cta {
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  padding: 10px 22px;
  font-weight: 700;
  font-size: 0.9375rem;
  transition: all 0.25s ease;
}
.nav-cta:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(242, 92, 58, 0.3);
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 4px 0;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(4px, 4px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(4px, -4px); }

/* ============ 面包屑 ============ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 2rem;
  font-size: 0.9375rem;
  color: var(--muted);
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--muted);
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-arrow {
  width: 12px;
  height: 20px;
  color: rgba(13, 59, 46, 0.3);
  flex-shrink: 0;
}
.breadcrumb .current {
  color: var(--ink);
  font-weight: 500;
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ 文章主体 ============ */
.article-main {
  padding-bottom: 3rem;
}
.article-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 3rem 3.5rem;
  margin-top: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.article-title {
  font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 1.25rem;
  overflow-wrap: break-word;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--muted);
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.meta-cat {
  background: rgba(201, 162, 75, 0.15);
  color: #8a6d2f;
  border: 1px solid rgba(201, 162, 75, 0.3);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  font-weight: 600;
}
.meta-divider {
  color: rgba(13, 59, 46, 0.2);
  font-weight: 300;
}
.meta-date, .meta-read, .meta-source {
  padding: 2px 0;
}

/* ============ 正文排版 ============ */
.article-content {
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--ink);
  overflow-wrap: break-word;
}
.article-content p {
  margin-bottom: 1.4em;
  text-align: left;
}
.article-content h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--primary);
  margin: 2em 0 0.8em;
  padding-left: 12px;
  border-left: 4px solid var(--secondary);
}
.article-content h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1.8em 0 0.6em;
}
.article-content h4 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1.6em 0 0.6em;
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 2rem auto;
  box-shadow: var(--shadow-sm);
  max-width: 100%;
  height: auto;
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--field);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin: 1.5em 0;
  color: var(--muted);
  font-style: normal;
}
.article-content ul,
.article-content ol {
  margin: 1em 0 1.4em 1.5em;
}
.article-content li {
  margin-bottom: 0.5em;
}
.article-content code {
  background: rgba(201, 162, 75, 0.15);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: var(--font-mono);
}
.article-content a {
  color: var(--accent);
  border-bottom: 1px solid rgba(242, 92, 58, 0.3);
  transition: all 0.2s ease;
}
.article-content a:hover {
  color: var(--accent-hover);
  border-color: var(--accent-hover);
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  text-align: left;
}
.article-content th {
  background: var(--field);
  font-weight: 700;
  color: var(--primary);
}

/* ============ 上一篇 / 下一篇 ============ */
.article-nav {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
}
.nav-prev,
.nav-next {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 1rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--ink);
  font-size: 0.9375rem;
  transition: all 0.25s ease;
  background: #fff;
}
.nav-prev i,
.nav-next i {
  color: var(--primary);
  font-size: 0.875rem;
}
.nav-prev:hover,
.nav-next:hover {
  border-color: var(--border-hover);
  background: rgba(13, 59, 46, 0.02);
  color: var(--accent);
  box-shadow: var(--shadow-sm);
}
.nav-prev.disabled,
.nav-next.disabled {
  opacity: 0.45;
  pointer-events: none;
}
.nav-next {
  justify-content: flex-end;
  text-align: right;
}

.back-cat {
  margin-top: 1.5rem;
  text-align: center;
}
.back-cat-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.9375rem;
  transition: all 0.2s ease;
}
.back-cat-link:hover {
  color: var(--accent);
}
.back-cat-link i {
  font-size: 0.875rem;
}

/* ============ 相关阅读 ============ */
.related-section {
  margin-top: 3.5rem;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.related-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(242, 92, 58, 0.4);
}
.related-card img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}
.related-info {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}
.related-tag {
  font-size: 0.75rem;
  color: #8a6d2f;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.related-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.4;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.related-date {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-top: auto;
}

/* ============ CTA 条 ============ */
.article-cta {
  max-width: 820px;
  margin: 3.5rem auto 0;
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 2.5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 162, 75, 0.2) 0%, transparent 70%);
  pointer-events: none;
}
.article-cta h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}
.article-cta p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  margin: 0;
}

/* ============ 空状态 ============ */
.article-empty {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  text-align: center;
  margin-top: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.empty-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--field);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--primary);
  font-size: 1.75rem;
}
.article-empty h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.75rem;
}
.article-empty p {
  color: var(--muted);
  margin-bottom: 1.5rem;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--primary);
  padding: 3.5rem 0 0;
  margin-top: 4rem;
}
.footer-main {
  padding-bottom: 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 4fr 2fr 2fr 4fr;
  gap: 2.5rem;
}
.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 1rem 0 1.25rem;
  max-width: 360px;
}
.footer-social {
  display: flex;
  gap: 0.75rem;
}
.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: all 0.25s ease;
}
.footer-social a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.footer-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer-links,
.footer-contact {
  list-style: none;
}
.footer-links li {
  margin-bottom: 0.6rem;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  transition: color 0.25s ease, padding-left 0.25s ease;
}
.footer-links a:hover {
  color: var(--secondary);
  padding-left: 4px;
}
.footer-contact li {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact i {
  color: var(--secondary);
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}
.footer-bottom {
  border-top: 1px solid rgba(201, 162, 75, 0.2);
  padding: 1.25rem 0;
  text-align: center;
}
.footer-bottom span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .nav-bar {
    gap: 1rem;
  }
  .nav-col {
    gap: 0.875rem;
    margin-left: 0.25rem;
  }
  .nav-link {
    font-size: 0.875rem;
  }
  .search-wrap {
    max-width: 280px;
  }
  .footer-grid {
    grid-template-columns: 6fr 3fr 3fr;
    gap: 2rem;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .nav-bar {
    flex-wrap: wrap;
    height: auto;
    min-height: 64px;
    padding: 12px 0;
    gap: 0.75rem 1rem;
    position: relative;
  }
  .search-wrap {
    order: 3;
    flex-basis: 100%;
    max-width: 100%;
  }
  .nav-cta {
    margin-left: auto;
  }
  .nav-toggle {
    display: block;
  }
  .nav-col {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--primary);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 0.5rem 0 1rem;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
    display: none;
  }
  .nav-col.open {
    display: flex;
  }
  .nav-link {
    padding: 0.875rem 2rem;
    color: rgba(255, 255, 255, 0.8);
  }
  .nav-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
  }
  .nav-link.active::after {
    left: 0;
    right: auto;
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    border-radius: 0 3px 3px 0;
  }

  .article-card {
    padding: 2.5rem 2rem;
  }
  .article-wrap {
    max-width: 720px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 1.25rem;
  }
  .nav-bar {
    padding: 10px 0;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 1rem;
    border-radius: 8px;
  }
  .brand-text {
    font-size: 1rem;
  }
  .nav-cta {
    padding: 8px 16px;
    font-size: 0.875rem;
  }
  .search-box {
    height: 42px;
  }

  .breadcrumb {
    font-size: 0.875rem;
    padding-top: 1.5rem;
  }
  .breadcrumb .current {
    max-width: 160px;
  }

  .article-card {
    padding: 1.75rem 1.25rem;
    border-radius: 16px;
  }
  .article-title {
    font-size: 1.375rem;
  }
  .article-meta {
    gap: 8px;
    font-size: 0.8125rem;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card img {
    height: 180px;
  }

  .article-cta {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
    gap: 1.25rem;
  }
  .article-cta h3 {
    font-size: 1.375rem;
  }

  .article-nav {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
  .footer-brand {
    grid-column: auto;
  }
  .footer-bottom {
    padding: 1rem 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 1rem;
  }
  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 0.9375rem;
  }
  .brand-text {
    font-size: 0.9375rem;
  }
  .search-box input::placeholder {
    font-size: 0.8125rem;
  }
  .search-btn {
    font-size: 0.875rem;
    padding-left: 10px;
    margin-left: 6px;
  }
  .article-card {
    padding: 1.5rem 1rem;
  }
  .article-meta {
    align-items: flex-start;
  }
  .meta-divider {
    display: none;
  }
}

/* roulang page: category2 */
/* ========= 设计变量 ========= */
    :root {
      --primary: #0D3B2E;
      --primary-dark: #082A20;
      --accent: #F25C3A;
      --accent-dark: #D9431F;
      --secondary: #C9A24B;
      --paper: #F5F1E8;
      --field: #E8F0EC;
      --ink: #1C2B26;
      --muted: #5C6E68;
      --border: rgba(13, 59, 46, 0.10);
      --border-hover: rgba(242, 92, 58, 0.4);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(13, 59, 46, 0.06);
      --shadow-md: 0 8px 24px rgba(13, 59, 46, 0.12);
      --shadow-lg: 0 16px 48px rgba(13, 59, 46, 0.18);
      --transition: 0.2s ease;
      --font-cn: "PingFang SC", "思源黑体", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
      --font-num: "DIN Alternate", "Roboto Mono", monospace;
    }

    /* ========= 基础 Reset ========= */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-cn);
      background: var(--paper);
      color: var(--ink);
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }
    a { color: var(--primary); text-decoration: none; transition: color 0.2s ease; }
    a:hover { color: var(--accent); }
    img { max-width: 100%; height: auto; display: block; }
    ul, ol { list-style: none; }
    button, input { font-family: inherit; }
    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 20px;
      padding-right: 20px;
      width: 100%;
    }
    :focus-visible {
      outline: 3px solid rgba(242, 92, 58, 0.35);
      outline-offset: 2px;
    }

    /* ========= 导航 ========= */
    .site-header {
      background: var(--primary);
      position: sticky;
      top: 0;
      z-index: 100;
      box-shadow: 0 4px 18px rgba(13, 59, 46, 0.35);
    }
    .header-inner {
      display: flex;
      align-items: center;
      gap: 20px;
      min-height: 72px;
      flex-wrap: nowrap;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
      width: auto;
      max-width: 220px;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      background: var(--accent);
      color: #fff;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 20px;
      flex-shrink: 0;
      box-shadow: 0 0 0 3px rgba(242, 92, 58, 0.25);
    }
    .brand-text {
      color: #fff;
      font-size: 20px;
      font-weight: 800;
      letter-spacing: 1px;
      white-space: nowrap;
      line-height: 1.2;
    }
    .brand-text em {
      font-style: normal;
      font-size: 12px;
      font-weight: 400;
      color: rgba(255, 255, 255, 0.7);
      margin-left: 4px;
      vertical-align: middle;
      letter-spacing: 0.5px;
    }
    .header-search {
      flex: 0 0 38%;
      max-width: 420px;
      display: flex;
      align-items: center;
      background: var(--field);
      border-radius: var(--radius-md);
      padding: 0 6px 0 14px;
      height: 44px;
      transition: background 0.2s ease, box-shadow 0.2s ease, border 0.2s ease;
      border: 1px solid transparent;
      margin-left: 12px;
    }
    .header-search:focus-within {
      background: #fff;
      border-color: rgba(13, 59, 46, 0.35);
      box-shadow: 0 0 0 3px rgba(13, 59, 46, 0.1);
    }
    .header-search svg {
      flex-shrink: 0;
      color: rgba(13, 59, 46, 0.6);
    }
    .header-search input {
      flex: 1;
      border: none;
      background: transparent;
      height: 100%;
      padding: 0 10px;
      font-size: 14px;
      color: var(--ink);
      outline: none;
    }
    .header-search input::placeholder { color: var(--muted); }
    .search-divider {
      width: 1px;
      height: 20px;
      background: rgba(13, 59, 46, 0.2);
      flex-shrink: 0;
    }
    .search-btn {
      background: transparent;
      border: none;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      padding: 6px 14px;
      cursor: pointer;
      border-radius: 8px;
      transition: background 0.2s ease, color 0.2s ease;
      flex-shrink: 0;
    }
    .search-btn:hover { background: rgba(13, 59, 46, 0.08); color: var(--accent); }
    .nav-col {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
      flex-shrink: 0;
    }
    .nav-link {
      color: rgba(255, 255, 255, 0.85);
      font-size: 15px;
      font-weight: 500;
      padding: 8px 12px;
      border-radius: 8px;
      position: relative;
      transition: color 0.2s ease, background 0.2s ease;
      white-space: nowrap;
    }
    .nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
    .nav-link.active { color: #fff; font-weight: 600; }
    .nav-link.active::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 12px;
      right: 12px;
      height: 3px;
      background: var(--accent);
      border-radius: 3px 3px 0 0;
    }
    .header-cta {
      background: var(--accent);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      padding: 10px 24px;
      border-radius: var(--radius-md);
      transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
      white-space: nowrap;
      flex-shrink: 0;
      margin-left: 4px;
    }
    .header-cta:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 4px 14px rgba(242, 92, 58, 0.35);
      color: #fff;
    }
    .hamburger {
      display: none;
      background: transparent;
      border: none;
      cursor: pointer;
      padding: 8px;
      flex-direction: column;
      gap: 5px;
      flex-shrink: 0;
    }
    .hamburger span {
      width: 24px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: transform 0.3s ease, opacity 0.3s ease;
    }
    .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    /* ========= 页面 H1 区 ========= */
    .page-hero {
      background: linear-gradient(135deg, rgba(13, 59, 46, 0.92), rgba(13, 59, 46, 0.65)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      padding: 64px 0 56px;
      border-bottom: 1px solid rgba(201, 162, 75, 0.3);
    }
    .page-hero .hero-flex {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 40px;
      flex-wrap: wrap;
    }
    .page-hero h1 {
      color: #fff;
      font-size: clamp(1.75rem, 3vw, 2.25rem);
      font-weight: 800;
      line-height: 1.25;
      margin-bottom: 12px;
      position: relative;
      padding-bottom: 16px;
    }
    .page-hero h1::after {
      content: "";
      display: block;
      width: 56px;
      height: 4px;
      background: var(--secondary);
      border-radius: 4px;
      margin-top: 16px;
    }
    .page-hero .hero-desc {
      color: rgba(255, 255, 255, 0.85);
      font-size: 15px;
      line-height: 1.8;
      max-width: 460px;
      flex-shrink: 0;
      padding-bottom: 8px;
      border-left: 3px solid var(--secondary);
      padding-left: 18px;
    }

    /* ========= 分类标签 ========= */
    .cat-tabs {
      background: #fff;
      border-bottom: 1px solid var(--border);
      padding: 18px 0;
      position: sticky;
      top: 72px;
      z-index: 50;
      box-shadow: 0 2px 10px rgba(13, 59, 46, 0.05);
    }
    .cat-tabs-inner {
      display: flex;
      gap: 12px;
      flex-wrap: nowrap;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
      align-items: center;
    }
    .cat-tabs-inner::-webkit-scrollbar { display: none; }
    .cat-tab {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 22px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: var(--primary);
      border: 1px solid rgba(13, 59, 46, 0.2);
      background: var(--paper);
      white-space: nowrap;
      transition: all 0.2s ease;
    }
    .cat-tab:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: #fff;
    }
    .cat-tab.active {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }
    .cat-tab i { font-size: 13px; }

    /* ========= 主内容区 ========= */
    .main-content {
      padding: 48px 0 60px;
    }
    .content-grid {
      display: flex;
      align-items: flex-start;
      gap: 32px;
      flex-wrap: wrap;
    }
    .content-list {
      flex: 1 1 calc(66.666% - 16px);
      max-width: calc(66.666% - 16px);
    }
    .content-sidebar {
      flex: 1 1 calc(33.333% - 16px);
      max-width: calc(33.333% - 16px);
      position: sticky;
      top: 140px;
    }

    /* 列表卡片 */
    .post-card {
      display: flex;
      gap: 20px;
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 18px;
      margin-bottom: 20px;
      box-shadow: var(--shadow-sm);
      transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    }
    .post-card:hover {
      border-color: var(--border-hover);
      box-shadow: var(--shadow-md);
      transform: translateY(-4px);
    }
    .post-thumb {
      width: 160px;
      height: 120px;
      border-radius: var(--radius-sm);
      object-fit: cover;
      flex-shrink: 0;
      background: var(--field);
    }
    .post-body {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 4px;
      min-width: 0;
    }
    .post-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--muted);
      flex-wrap: wrap;
    }
    .post-tag {
      background: rgba(201, 162, 75, 0.15);
      color: #8a6d2a;
      font-size: 12px;
      font-weight: 600;
      padding: 2px 10px;
      border-radius: 999px;
      white-space: nowrap;
    }
    .post-time {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      white-space: nowrap;
    }
    .post-title {
      font-size: 18px;
      font-weight: 700;
      color: var(--ink);
      line-height: 1.5;
      margin: 4px 0 2px;
      transition: color 0.2s ease;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .post-card:hover .post-title { color: var(--accent); }
    .post-excerpt {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      margin-bottom: 4px;
    }
    .post-link {
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      gap: 4px;
      margin-top: auto;
      transition: color 0.2s ease;
    }
    .post-link:hover { color: var(--accent); }
    .post-link i { font-size: 11px; }

    /* 侧栏卡片 */
    .side-card {
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 24px;
      margin-bottom: 24px;
      box-shadow: var(--shadow-sm);
    }
    .side-title {
      font-size: 16px;
      font-weight: 700;
      color: var(--primary);
      padding-left: 14px;
      position: relative;
      margin-bottom: 18px;
    }
    .side-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 4px;
      width: 4px;
      height: 20px;
      background: var(--secondary);
      border-radius: 4px;
    }
    .rank-list li {
      display: flex;
      align-items: flex-start;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid rgba(13, 59, 46, 0.06);
      transition: background 0.2s ease;
      cursor: pointer;
    }
    .rank-list li:last-child { border-bottom: none; padding-bottom: 0; }
    .rank-list li:first-child { padding-top: 0; }
    .rank-list li:hover { background: rgba(13, 59, 46, 0.02); }
    .rank-num {
      font-family: var(--font-num);
      font-size: 22px;
      font-weight: 800;
      color: var(--secondary);
      line-height: 1.3;
      min-width: 32px;
      text-align: center;
      flex-shrink: 0;
      margin-top: 2px;
    }
    .rank-item {
      font-size: 14px;
      color: var(--ink);
      line-height: 1.6;
      transition: color 0.2s ease;
    }
    .rank-list li:hover .rank-item { color: var(--accent); }

    /* 侧栏 CTA 卡 */
    .side-cta {
      background: var(--primary);
      border-radius: var(--radius-lg);
      padding: 28px 24px;
      color: #fff;
      text-align: center;
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }
    .side-cta::before {
      content: "";
      position: absolute;
      top: -40px;
      right: -40px;
      width: 100px;
      height: 100px;
      background: radial-gradient(circle, rgba(242, 92, 58, 0.3), transparent 70%);
      border-radius: 50%;
    }
    .side-cta h3 {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 10px;
    }
    .side-cta p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 20px;
      line-height: 1.7;
    }
    .side-cta .btn-primary {
      background: var(--accent);
      color: #fff;
      border: none;
      padding: 12px 32px;
      border-radius: var(--radius-md);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
      display: inline-block;
    }
    .side-cta .btn-primary:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(242, 92, 58, 0.4);
      color: #fff;
    }

    /* ========= 分页条 ========= */
    .pagination-bar {
      padding: 10px 0 60px;
      display: flex;
      justify-content: center;
    }
    .pagination {
      display: flex;
      gap: 8px;
      align-items: center;
    }
    .page-btn {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid rgba(13, 59, 46, 0.2);
      background: #fff;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: all 0.2s ease;
    }
    .page-btn:hover { border-color: var(--accent); color: var(--accent); }
    .page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
    .page-btn.p-btn { font-size: 12px; }

    /* ========= FAQ ========= */
    .faq-section {
      background: var(--field);
      padding: 64px 0;
    }
    .faq-title-box {
      margin-bottom: 36px;
    }
    .faq-title-box h2 {
      font-size: clamp(1.5rem, 2.5vw, 1.875rem);
      font-weight: 700;
      color: var(--primary);
      padding-left: 14px;
      position: relative;
      line-height: 1.4;
    }
    .faq-title-box h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 6px;
      width: 4px;
      height: 28px;
      background: var(--secondary);
      border-radius: 4px;
    }
    .faq-subtitle {
      color: var(--muted);
      font-size: 15px;
      margin-top: 8px;
      padding-left: 14px;
    }
    .faq-box {
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }
    .accordion-item {
      background: #fff;
      border-bottom: 1px solid rgba(13, 59, 46, 0.08);
      transition: background 0.2s ease;
    }
    .accordion-item:last-child { border-bottom: none; }
    .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      color: var(--primary);
      cursor: pointer;
      transition: color 0.2s ease, background 0.2s ease;
      background: transparent;
      border: none;
      width: 100%;
      text-align: left;
      position: relative;
    }
    .accordion-title:hover { color: var(--accent); }
    .accordion-title .icon-plus {
      min-width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(13, 59, 46, 0.06);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all 0.25s ease;
      flex-shrink: 0;
      margin-left: 16px;
    }
    .accordion-item.is-active .accordion-title .icon-plus {
      background: var(--accent);
      color: #fff;
      transform: rotate(45deg);
    }
    .accordion-content {
      padding: 0 24px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.9;
      background: rgba(232, 240, 236, 0.15);
      overflow: hidden;
      max-height: 0;
      transition: max-height 0.3s ease, padding 0.3s ease;
    }
    .accordion-item.is-active .accordion-content {
      max-height: 300px;
      padding: 0 24px 22px;
    }

    /* ========= CTA 收尾 ========= */
    .cta-section {
      background: var(--primary);
      padding: 72px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--secondary), transparent);
    }
    .cta-section::after {
      content: "";
      position: absolute;
      bottom: -80px;
      left: 50%;
      transform: translateX(-50%);
      width: 500px;
      height: 200px;
      background: radial-gradient(circle, rgba(242, 92, 58, 0.15), transparent 70%);
      pointer-events: none;
    }
    .cta-inner { position: relative; z-index: 1; }
    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.6rem, 3vw, 2.25rem);
      font-weight: 800;
      margin-bottom: 12px;
      line-height: 1.4;
    }
    .cta-inner p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 16px;
      max-width: 560px;
      margin: 0 auto 28px;
      line-height: 1.8;
      padding: 0 20px;
    }
    .cta-btn {
      display: inline-block;
      background: var(--accent);
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      padding: 15px 44px;
      border-radius: var(--radius-md);
      transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
      box-shadow: 0 6px 20px rgba(242, 92, 58, 0.25);
    }
    .cta-btn:hover {
      background: var(--accent-dark);
      transform: translateY(-3px);
      box-shadow: 0 10px 30px rgba(242, 92, 58, 0.4);
      color: #fff;
    }
    .cta-note {
      margin-top: 18px;
      color: rgba(255, 255, 255, 0.55);
      font-size: 13px;
      letter-spacing: 0.5px;
    }
    .cta-note span { margin: 0 8px; color: var(--secondary); }

    /* ========= 页脚 ========= */
    .site-footer {
      background: var(--primary-dark);
      color: rgba(255, 255, 255, 0.7);
      padding-top: 56px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 4fr 2fr 2fr 4fr;
      gap: 36px;
      padding-bottom: 40px;
    }
    .footer-brand .brand-logo { margin-bottom: 16px; }
    .footer-brand p {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 16px;
      max-width: 280px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
    }
    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.08);
      color: rgba(255, 255, 255, 0.7);
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }
    .footer-social a:hover {
      background: var(--accent);
      color: #fff;
      transform: translateY(-3px);
    }
    .footer-title {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 16px;
      position: relative;
      padding-bottom: 10px;
    }
    .footer-title::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 28px;
      height: 2px;
      background: var(--secondary);
    }
    .footer-links li { margin-bottom: 10px; }
    .footer-links a {
      color: rgba(255, 255, 255, 0.6);
      font-size: 14px;
      transition: color 0.2s ease, padding-left 0.2s ease;
    }
    .footer-links a:hover { color: var(--secondary); padding-left: 4px; }
    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      font-size: 14px;
      margin-bottom: 12px;
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.6;
    }
    .footer-contact i { color: var(--secondary); margin-top: 4px; min-width: 16px; }
    .footer-bottom {
      border-top: 1px solid rgba(201, 162, 75, 0.2);
      padding: 18px 0;
      text-align: center;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
    }

    /* ========= 响应式 ========= */
    @media screen and (max-width: 1024px) {
      .header-inner { flex-wrap: wrap; min-height: 64px; padding: 8px 0; }
      .header-search { order: 3; flex: 0 0 100%; max-width: none; margin-left: 0; margin-top: 8px; }
      .nav-col { margin-left: auto; }
      .cat-tabs { top: 64px; }
      .content-list { flex: 1 0 100%; max-width: 100%; }
      .content-sidebar { flex: 1 0 100%; max-width: 100%; position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
      .side-card { margin-bottom: 0; }
    }
    @media screen and (max-width: 768px) {
      .header-inner { gap: 8px; }
      .brand-text { font-size: 18px; }
      .brand-mark { width: 34px; height: 34px; font-size: 17px; }
      .nav-col {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        padding: 12px 20px 20px;
        box-shadow: 0 12px 24px rgba(13, 59, 46, 0.3);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        align-items: stretch;
        gap: 2px;
        z-index: 100;
      }
      .nav-col.open { display: flex; }
      .nav-link { padding: 12px 16px; border-radius: 8px; width: 100%; }
      .nav-link.active::after { display: none; }
      .nav-link.active { background: rgba(242, 92, 58, 0.18); }
      .header-cta { display: none; }
      .hamburger { display: flex; }
      .page-hero { padding: 44px 0 36px; }
      .page-hero .hero-flex { flex-direction: column; align-items: flex-start; gap: 20px; }
      .page-hero .hero-desc { max-width: 100%; }
      .post-card { flex-direction: column; }
      .post-thumb { width: 100%; height: 180px; }
      .pagination { gap: 6px; }
      .page-btn { width: 34px; height: 34px; font-size: 13px; }
      .faq-section { padding: 48px 0; }
      .cta-section { padding: 52px 0; }
      .cta-btn { width: 100%; max-width: 320px; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    }
    @media screen and (max-width: 520px) {
      .brand-text { font-size: 16px; }
      .brand-text em { display: none; }
      .header-search { height: 40px; }
      .header-search input { font-size: 13px; }
      .search-btn { padding: 4px 10px; font-size: 13px; }
      .content-sidebar { grid-template-columns: 1fr; }
      .post-thumb { height: 140px; }
      .post-title { font-size: 16px; }
      .post-excerpt { font-size: 13px; }
      .cat-tab { padding: 6px 16px; font-size: 13px; }
      .page-hero h1 { font-size: 22px; }
      .footer-grid { grid-template-columns: 1fr; }
    }

/* roulang page: category3 */
:root {
      --primary: #0D3B2E;
      --accent: #F25C3A;
      --accent-dark: #D9431F;
      --secondary: #C9A24B;
      --paper: #F5F1E8;
      --field: #E8F0EC;
      --ink: #1C2B26;
      --muted: #5C6E68;
      --border: rgba(13, 59, 46, 0.10);
      --border-hover: rgba(242, 92, 58, 0.4);
      --radius-sm: 6px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 8px rgba(13, 59, 46, 0.06);
      --shadow-hover: 0 8px 24px rgba(13, 59, 46, 0.12);
      --shadow-hero: 0 16px 48px rgba(13, 59, 46, 0.18);
      --font-main: "PingFang SC", "思源黑体", "Source Han Sans SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
      --font-num: "DIN Alternate", "Roboto Mono", monospace;
      --space-section: clamp(3rem, 7vw, 6rem);
    }

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

    html {
      scroll-behavior: smooth;
    }

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

    a {
      text-decoration: none;
      color: inherit;
      transition: color .2s;
    }

    a:hover {
      color: var(--accent);
    }

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

    button,
    input {
      font-family: var(--font-main);
      outline: none;
      border: none;
    }

    .container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 1.5rem;
    }

    .row {
      margin: 0 -0.75rem;
    }

    .columns {
      padding: 0 0.75rem;
    }

    :focus-visible {
      outline: 3px solid rgba(242, 92, 58, 0.35);
      outline-offset: 2px;
    }

    /* ===== 按钮 ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 36px;
      border-radius: var(--radius-md);
      font-weight: 700;
      font-size: 0.9375rem;
      line-height: 1;
      cursor: pointer;
      transition: background .25s, transform .25s, box-shadow .25s, border-color .25s;
      border: 2px solid transparent;
      letter-spacing: 0.02em;
    }

    .btn-primary {
      background: var(--accent);
      color: #fff;
      box-shadow: 0 4px 14px rgba(242, 92, 58, 0.28);
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 8px 20px rgba(242, 92, 58, 0.32);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: none;
    }

    .btn-outline {
      background: transparent;
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: rgba(13, 59, 46, 0.05);
      color: var(--primary);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-sm {
      padding: 10px 22px;
      font-size: 0.875rem;
      border-radius: 10px;
    }

    .btn-lg {
      padding: 16px 48px;
      font-size: 1rem;
      border-radius: 14px;
    }

    /* ===== 头部导航 ===== */
    .site-header {
      background: var(--primary);
      position: sticky;
      top: 0;
      z-index: 1000;
      box-shadow: 0 4px 18px rgba(13, 59, 46, 0.18);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 1rem;
      min-height: 72px;
      position: relative;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      width: 190px;
    }

    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 10px;
      background: var(--accent);
      color: #fff;
      font-size: 1.25rem;
      font-weight: 900;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(242, 92, 58, 0.3);
    }

    .brand-text {
      color: #fff;
      font-size: 1.1rem;
      font-weight: 800;
      letter-spacing: 0.03em;
      white-space: nowrap;
    }

    .brand-text em {
      font-style: normal;
      font-size: 0.75rem;
      font-weight: 400;
      color: rgba(255, 255, 255, 0.7);
      margin-left: 2px;
    }

    .search-area {
      flex: 0 1 42%;
      display: flex;
      align-items: center;
      background: var(--field);
      border-radius: var(--radius-md);
      height: 44px;
      padding: 0 14px;
      transition: background .25s, border-color .25s, box-shadow .25s;
      border: 1px solid transparent;
    }

    .search-area:focus-within {
      background: #fff;
      border-color: rgba(13, 59, 46, 0.35);
      box-shadow: 0 0 0 3px rgba(13, 59, 46, 0.12);
    }

    .search-icon {
      width: 18px;
      height: 18px;
      color: rgba(13, 59, 46, 0.6);
      flex: 0 0 auto;
    }

    .search-input {
      flex: 1;
      border: none;
      background: transparent;
      padding: 0 10px;
      font-size: 0.875rem;
      color: var(--ink);
      height: 100%;
    }

    .search-input::placeholder {
      color: var(--muted);
      opacity: 0.8;
    }

    .search-divider {
      width: 1px;
      height: 18px;
      background: rgba(13, 59, 46, 0.16);
      flex: 0 0 auto;
    }

    .search-btn {
      background: transparent;
      color: var(--primary);
      font-weight: 600;
      font-size: 0.875rem;
      padding: 0 4px 0 12px;
      cursor: pointer;
      transition: color .2s;
    }

    .search-btn:hover {
      color: var(--accent);
    }

    .nav-col {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 1.1rem;
    }

    .nav-link {
      color: rgba(255, 255, 255, 0.78);
      font-size: 0.875rem;
      font-weight: 500;
      padding: 6px 2px;
      border-bottom: 3px solid transparent;
      transition: color .2s, border-color .2s;
      white-space: nowrap;
    }

    .nav-link:hover {
      color: #fff;
      border-bottom-color: rgba(242, 92, 58, 0.7);
    }

    .nav-link.active {
      color: #fff;
      border-bottom-color: var(--accent);
      font-weight: 600;
    }

    .header-cta {
      flex: 0 0 auto;
    }

    .header-cta .btn-sm {
      padding: 8px 20px;
      font-size: 0.8125rem;
      border-radius: 10px;
    }

    .hamburger {
      display: none;
      background: transparent;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      cursor: pointer;
      border-radius: 6px;
    }

    .hamburger span {
      width: 22px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: transform .25s, opacity .25s;
    }

    .hamburger.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .hamburger.open span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* ===== 分类页头 ===== */
    .category-header {
      background: var(--paper);
      padding: 2.5rem 0 0;
      border-bottom: 1px solid var(--border);
    }

    .category-header-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 2rem;
      flex-wrap: wrap;
    }

    .category-header h1 {
      font-size: clamp(1.75rem, 3vw, 2.25rem);
      font-weight: 800;
      color: var(--primary);
      line-height: 1.3;
      margin-bottom: 0.5rem;
    }

    .category-desc {
      color: var(--muted);
      font-size: 0.9375rem;
      max-width: 420px;
      line-height: 1.7;
    }

    .cat-tabs {
      display: flex;
      gap: 0.75rem;
      margin-top: 1.75rem;
      padding-bottom: 1.25rem;
      overflow-x: auto;
      scrollbar-width: none;
      white-space: nowrap;
    }

    .cat-tabs::-webkit-scrollbar {
      display: none;
    }

    .cat-tab {
      display: inline-block;
      padding: 8px 22px;
      border-radius: 999px;
      border: 1px solid var(--primary);
      background: #fff;
      color: var(--primary);
      font-size: 0.875rem;
      font-weight: 600;
      transition: background .25s, color .25s, border-color .25s, box-shadow .25s;
    }

    .cat-tab:hover {
      border-color: var(--accent);
      color: var(--accent);
      box-shadow: var(--shadow-sm);
    }

    .cat-tab.active {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }

    /* ===== Hero ===== */
    .category-hero {
      position: relative;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      min-height: 480px;
      display: flex;
      align-items: center;
      margin-top: 2rem;
    }

    .hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(13, 59, 46, 0.92) 0%, rgba(13, 59, 46, 0.75) 45%, rgba(13, 59, 46, 0.4) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.25fr 0.75fr;
      gap: 3rem;
      align-items: center;
      padding-top: 3.5rem;
      padding-bottom: 3.5rem;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(242, 92, 58, 0.16);
      border: 1px solid rgba(242, 92, 58, 0.45);
      color: #fff;
      font-size: 0.8125rem;
      font-weight: 600;
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 1.25rem;
      letter-spacing: 0.02em;
    }

    .hero-left h2 {
      color: #fff;
      font-size: clamp(2rem, 4.2vw, 3rem);
      font-weight: 900;
      line-height: 1.25;
      margin-bottom: 1rem;
    }

    .hero-left p {
      color: rgba(255, 255, 255, 0.85);
      font-size: 1.0625rem;
      line-height: 1.85;
      max-width: 480px;
      margin-bottom: 2rem;
    }

    .hero-actions {
      display: flex;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .hero-actions .btn-outline {
      border-color: rgba(255, 255, 255, 0.6);
      color: #fff;
    }

    .hero-actions .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: #fff;
      color: #fff;
    }

    .hero-card-stack {
      display: flex;
      flex-direction: column;
      gap: 1rem;
    }

    .hero-card {
      background: rgba(255, 255, 255, 0.96);
      border-radius: var(--radius-lg);
      padding: 1.25rem 1.5rem;
      display: flex;
      align-items: center;
      gap: 1rem;
      box-shadow: var(--shadow-hero);
      transition: transform .25s, box-shadow .25s;
    }

    .hero-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 48px rgba(13, 59, 46, 0.22);
    }

    .hero-card-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: var(--field);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex: 0 0 auto;
    }

    .hero-card h3 {
      font-size: 0.9375rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 2px;
    }

    .hero-card p {
      font-size: 0.8125rem;
      color: var(--muted);
      margin: 0;
      line-height: 1.5;
    }

    /* ===== 板块标题 ===== */
    .section-heading {
      margin-bottom: 2.5rem;
    }

    .section-heading h2 {
      font-size: 1.5rem;
      font-weight: 700;
      color: var(--primary);
      padding-left: 0.6875rem;
      position: relative;
      line-height: 1.4;
      margin-bottom: 0.5rem;
    }

    .section-heading h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: 4px;
      width: 4px;
      height: 28px;
      background: var(--secondary);
      border-radius: 2px;
    }

    .section-heading p {
      color: var(--muted);
      font-size: 0.9375rem;
      padding-left: 0.6875rem;
    }

    .left-heading {
      margin-bottom: 1.75rem;
    }

    /* ===== 合作优势 ===== */
    .advantage-section {
      padding: var(--space-section) 0;
      background: var(--paper);
    }

    .advantage-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.75rem 1.5rem 1.5rem;
      height: 100%;
      position: relative;
      transition: transform .25s, box-shadow .25s, border-color .25s;
    }

    .advantage-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-hover);
    }

    .advantage-num {
      position: absolute;
      top: 1.25rem;
      right: 1.25rem;
      font-family: var(--font-num);
      font-size: 1.75rem;
      font-weight: 800;
      color: rgba(13, 59, 46, 0.1);
      line-height: 1;
    }

    .advantage-card i {
      font-size: 1.6rem;
      color: var(--secondary);
      margin-bottom: 1rem;
      display: block;
    }

    .advantage-card h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }

    .advantage-card p {
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ===== 主内容区 ===== */
    .content-list-section {
      padding: var(--space-section) 0;
      background: #fff;
    }

    .content-list {
      display: flex;
      flex-direction: column;
      gap: 1.25rem;
    }

    .content-card {
      display: flex;
      gap: 1.25rem;
      background: var(--paper);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      padding: 1rem;
      transition: box-shadow .25s, transform .25s, border-color .25s;
    }

    .content-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
      border-color: var(--border-hover);
    }

    .content-card-img {
      width: 160px;
      min-width: 160px;
      height: 118px;
      border-radius: var(--radius-md);
      object-fit: cover;
      background: var(--field);
    }

    .content-card-body {
      flex: 1;
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-width: 0;
    }

    .content-tag {
      display: inline-block;
      background: rgba(201, 162, 75, 0.18);
      color: #8a6d2f;
      font-size: 0.75rem;
      font-weight: 600;
      padding: 2px 10px;
      border-radius: 999px;
      margin-bottom: 0.5rem;
      align-self: flex-start;
      letter-spacing: 0.02em;
    }

    .content-card h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.375rem;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 1;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .content-card p {
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.6;
      margin-bottom: 0.5rem;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .content-meta {
      display: flex;
      align-items: center;
      gap: 1rem;
      font-size: 0.8125rem;
      color: var(--muted);
    }

    .content-meta .content-link {
      color: var(--primary);
      font-weight: 600;
      margin-left: auto;
      border-bottom: 1px solid transparent;
      transition: color .2s, border-color .2s;
    }

    .content-meta .content-link:hover {
      color: var(--accent);
      border-bottom-color: var(--accent);
    }

    /* 分页 */
    .pagination-wrap {
      display: flex;
      justify-content: center;
      gap: 0.5rem;
      margin-top: 2rem;
    }

    .page-btn {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      border: 1px solid var(--primary);
      background: #fff;
      color: var(--primary);
      font-size: 0.875rem;
      font-weight: 600;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      transition: background .25s, color .25s, transform .2s;
    }

    .page-btn:hover {
      background: rgba(13, 59, 46, 0.06);
      transform: scale(1.05);
    }

    .page-btn.active {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
    }

    /* 侧栏 */
    .sidebar-widget {
      margin-bottom: 1.75rem;
      background: var(--paper);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.5rem 1.25rem;
    }

    .widget-title {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 1rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .widget-title::before {
      content: "";
      width: 4px;
      height: 18px;
      background: var(--secondary);
      border-radius: 2px;
      display: inline-block;
    }

    .hot-ranking {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .hot-item {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      padding: 0.625rem 0;
      border-bottom: 1px dashed rgba(13, 59, 46, 0.1);
      font-size: 0.875rem;
      color: var(--ink);
      transition: padding-left .25s, color .2s;
      cursor: pointer;
    }

    .hot-item:last-child {
      border-bottom: none;
    }

    .hot-item:hover {
      padding-left: 4px;
      color: var(--accent);
    }

    .hot-num {
      font-family: var(--font-num);
      font-size: 0.9375rem;
      font-weight: 800;
      color: var(--secondary);
      min-width: 22px;
      text-align: center;
    }

    .hot-item:nth-child(1) .hot-num {
      color: var(--accent);
    }

    .quick-cta {
      background: var(--primary);
      border-radius: var(--radius-lg);
      padding: 1.75rem 1.5rem;
      text-align: center;
      color: #fff;
    }

    .quick-cta h3 {
      font-size: 1.125rem;
      font-weight: 700;
      margin-bottom: 0.375rem;
    }

    .quick-cta p {
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.7);
      margin-bottom: 1.25rem;
      line-height: 1.6;
    }

    .quick-cta .btn-primary {
      width: 100%;
    }

    /* ===== 适用场景 ===== */
    .scenario-section {
      padding: var(--space-section) 0;
      background: var(--paper);
    }

    .scenario-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.5rem;
      height: 100%;
      text-align: center;
      transition: transform .25s, box-shadow .25s, border-color .25s;
    }

    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: var(--border-hover);
    }

    .scenario-card i {
      font-size: 2rem;
      color: var(--primary);
      background: var(--field);
      width: 64px;
      height: 64px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 1rem;
    }

    .scenario-card h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.5rem;
    }

    .scenario-card p {
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ===== 合作流程 ===== */
    .process-section {
      padding: var(--space-section) 0;
      background: #fff;
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      position: relative;
      margin-top: 1rem;
    }

    .process-step {
      background: var(--paper);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 1.75rem 1.5rem;
      position: relative;
      text-align: center;
      transition: transform .25s, box-shadow .25s;
    }

    .process-step:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .step-num {
      font-family: var(--font-num);
      font-size: 2rem;
      font-weight: 800;
      color: var(--primary);
      line-height: 1;
      margin-bottom: 0.5rem;
      display: block;
    }

    .process-step:nth-child(2) {
      background: var(--field);
    }

    .process-step h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 0.375rem;
    }

    .process-step p {
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.6;
      margin-bottom: 0;
    }

    .process-arrow {
      position: absolute;
      top: 50%;
      right: -1.25rem;
      width: 2.5rem;
      height: 2px;
      background: var(--secondary);
      transform: translateY(-50%);
      z-index: 2;
      opacity: 0.6;
    }

    .process-arrow::after {
      content: "";
      position: absolute;
      right: 0;
      top: -3px;
      border-left: 6px solid var(--secondary);
      border-top: 4px solid transparent;
      border-bottom: 4px solid transparent;
    }

    .process-step:last-child .process-arrow {
      display: none;
    }

    /* ===== FAQ ===== */
    .faq-section {
      padding: var(--space-section) 0;
      background: var(--paper);
    }

    .faq-layout {
      display: grid;
      grid-template-columns: 1fr 2.5fr;
      gap: 2.5rem;
      align-items: start;
    }

    .faq-tip {
      margin-top: 1rem;
      padding: 1rem 1.25rem;
      background: rgba(201, 162, 75, 0.12);
      border-radius: var(--radius-md);
      font-size: 0.875rem;
      color: var(--muted);
      border-left: 3px solid var(--secondary);
    }

    .faq-panel {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-item:last-child {
      border-bottom: none;
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 1.125rem 1.5rem;
      cursor: pointer;
      font-size: 0.9375rem;
      font-weight: 600;
      color: var(--primary);
      transition: color .2s, background .2s;
      user-select: none;
    }

    .faq-question:hover {
      background: rgba(232, 240, 236, 0.4);
    }

    .faq-icon {
      width: 20px;
      height: 20px;
      position: relative;
      flex: 0 0 auto;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--primary);
      border-radius: 2px;
      transition: transform .25s, background .25s;
    }

    .faq-icon::before {
      width: 12px;
      height: 2px;
      top: 9px;
      left: 4px;
    }

    .faq-icon::after {
      width: 2px;
      height: 12px;
      top: 4px;
      left: 9px;
    }

    .faq-item.open .faq-icon::before {
      transform: rotate(180deg);
    }

    .faq-item.open .faq-icon::after {
      transform: rotate(180deg);
      opacity: 0;
    }

    .faq-item.open .faq-question {
      color: var(--accent);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease, padding .35s ease;
      color: var(--muted);
      font-size: 0.9375rem;
      line-height: 1.75;
      padding: 0 1.5rem;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
      padding-bottom: 1rem;
    }

    /* ===== CTA ===== */
    .cta-section {
      background: var(--primary);
      padding: 4rem 0;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 80%;
      height: 1px;
      background: rgba(201, 162, 75, 0.55);
    }

    .cta-inner {
      text-align: center;
      max-width: 640px;
      margin: 0 auto;
    }

    .cta-inner h2 {
      color: #fff;
      font-size: clamp(1.75rem, 3vw, 2.25rem);
      font-weight: 800;
      margin-bottom: 0.75rem;
    }

    .cta-inner p {
      color: rgba(255, 255, 255, 0.75);
      font-size: 1rem;
      margin-bottom: 2rem;
      line-height: 1.7;
    }

    .cta-trust {
      margin-top: 1.25rem;
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.55);
      letter-spacing: 0.02em;
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: var(--primary);
      color: rgba(255, 255, 255, 0.7);
      font-size: 0.875rem;
    }

    .footer-main {
      padding: 3.5rem 0 2rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 4fr 2fr 2fr 4fr;
      gap: 2rem;
    }

    .footer-brand .brand-logo {
      width: auto;
      margin-bottom: 1rem;
    }

    .footer-brand p {
      font-size: 0.875rem;
      line-height: 1.8;
      margin-bottom: 1rem;
      color: rgba(255, 255, 255, 0.65);
      max-width: 300px;
    }

    .footer-social {
      display: flex;
      gap: 0.75rem;
    }

    .footer-social a {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.18);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.7);
      transition: background .25s, border-color .25s, color .25s, transform .25s;
    }

    .footer-social a:hover {
      background: var(--accent);
      border-color: var(--accent);
      color: #fff;
      transform: translateY(-2px);
    }

    .footer-title {
      font-size: 0.9375rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 1rem;
      position: relative;
      padding-bottom: 0.5rem;
    }

    .footer-title::after {
      content: "";
      position: absolute;
      bottom: 0;
      left: 0;
      width: 24px;
      height: 2px;
      background: var(--secondary);
      border-radius: 1px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-links li {
      margin-bottom: 0.5rem;
    }

    .footer-links a {
      color: rgba(255, 255, 255, 0.65);
      transition: color .2s, padding-left .2s;
    }

    .footer-links a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-contact {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 0.625rem;
      color: rgba(255, 255, 255, 0.65);
    }

    .footer-contact i {
      width: 16px;
      text-align: center;
      color: var(--secondary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(201, 162, 75, 0.2);
      padding: 1.25rem 0;
      text-align: center;
      font-size: 0.8125rem;
      color: rgba(255, 255, 255, 0.45);
    }

    /* ===== 响应式 ===== */
    @media (max-width: 1024px) {
      .header-inner {
        flex-wrap: wrap;
        min-height: 64px;
        padding: 0.75rem 1.5rem;
        gap: 0.75rem;
      }

      .header-inner .container {
        padding: 0;
      }

      .brand-logo {
        width: auto;
      }

      .search-area {
        order: 3;
        flex: 1 1 100%;
      }

      .nav-col {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 1.5rem 1.5rem;
        gap: 0.5rem;
        box-shadow: 0 12px 30px rgba(13, 59, 46, 0.25);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
      }

      .nav-col.nav-open {
        display: flex;
      }

      .nav-link {
        width: 100%;
        padding: 0.625rem 0;
        border-bottom: none;
        border-left: 3px solid transparent;
      }

      .nav-link.active {
        border-bottom: none;
        border-left-color: var(--accent);
      }

      .hamburger {
        display: flex;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem 1.5rem;
      }

      .process-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.25rem;
      }

      .process-arrow {
        display: none;
      }

      .hero-content {
        grid-template-columns: 1fr;
      }

      .hero-card-stack {
        flex-direction: row;
      }

      .hero-card {
        flex: 1;
      }
    }

    @media (max-width: 640px) {
      .container {
        padding: 0 1rem;
      }

      .header-inner {
        padding: 0.75rem 1rem;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
        font-size: 1rem;
        border-radius: 8px;
      }

      .brand-text {
        font-size: 0.9375rem;
      }

      .header-cta .btn-sm {
        padding: 6px 14px;
        font-size: 0.75rem;
      }

      .category-header h1 {
        font-size: 1.5rem;
      }

      .category-desc {
        font-size: 0.8125rem;
      }

      .hero-content {
        padding-top: 2.5rem;
        padding-bottom: 2.5rem;
        gap: 2rem;
      }

      .hero-left h2 {
        font-size: 1.75rem;
      }

      .hero-left p {
        font-size: 0.9375rem;
      }

      .hero-card-stack {
        flex-direction: column;
      }

      .hero-card {
        padding: 1rem;
      }

      .hero-actions {
        flex-direction: column;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .advantage-section,
      .scenario-section,
      .process-section,
      .faq-section {
        padding: 2.5rem 0;
      }

      .content-list-section {
        padding: 2.5rem 0;
      }

      .content-card {
        flex-direction: column;
      }

      .content-card-img {
        width: 100%;
        height: 160px;
        min-width: auto;
      }

      .faq-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .quick-cta .btn-primary {
        width: auto;
        min-width: 160px;
      }

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

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

      .cta-inner h2 {
        font-size: 1.5rem;
      }

      .footer-main {
        padding: 2.5rem 0 1.5rem;
      }
    }