/* roulang page: index */
:root{
  --color-primary:#2F4156;
  --color-primary-hover:#253546;
  --color-primary-dark:#1E2B3A;
  --color-primary-light:#E8EEF4;
  --color-accent:#C4A276;
  --color-accent-light:#F7F1E6;
  --color-bg:#F5F7FA;
  --color-surface:#FFFFFF;
  --color-text:#1F2A37;
  --color-text-secondary:#667085;
  --color-border:#E4E7EC;
  --color-success:#2E7D5B;
  --color-warning:#D97706;
  --color-error:#C0392B;
  --shadow-xs:0 1px 2px rgba(31,42,55,0.05);
  --shadow-md:0 6px 24px rgba(31,42,55,0.08);
  --shadow-lg:0 16px 40px rgba(31,42,55,0.12);
  --radius-btn:6px;
  --radius-card:12px;
  --radius-img:8px;
  --radius-modal:16px;
  --radius-badge:999px;
  --transition:0.25s ease;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-serif:Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--color-text);
  background:var(--color-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:var(--color-primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--color-primary-hover)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--color-text)}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.h2-title{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.3;color:var(--color-text);margin-bottom:16px}
.sec-desc{font-size:16px;color:var(--color-text-secondary);line-height:1.7;max-width:720px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  line-height:1;transition:all var(--transition);text-align:center;white-space:nowrap;
  min-height:44px;border:1px solid transparent;text-decoration:none;
}
.btn-primary{background:var(--color-primary);color:#fff;box-shadow:var(--shadow-xs)}
.btn-primary:hover{background:var(--color-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{border-color:var(--color-primary);color:var(--color-primary);background:transparent}
.btn-outline:hover{background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary)}
.btn-accent{background:var(--color-accent);color:#fff}
.btn-accent:hover{background:#B08F5F;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-light{background:#fff;color:var(--color-primary);border-color:rgba(255,255,255,0.3)}
.btn-light:hover{background:var(--color-primary-light);color:var(--color-primary)}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:500;line-height:1.4;background:var(--color-primary-light);color:var(--color-primary);
}
.badge-accent{background:var(--color-accent-light);color:#8C6D3F}
.text-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:600;text-decoration:none}
.text-link:hover{color:var(--color-primary-hover)}
.text-link .arrow{transition:transform var(--transition)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--color-border);
}
.header-inner{
  display:flex;align-items:center;gap:24px;height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.brand-mark{
  width:36px;height:36px;border-radius:8px;background:var(--color-primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:800;letter-spacing:1px;
}
.brand-text{font-size:18px;font-weight:700;color:var(--color-text);white-space:nowrap}
.site-nav{
  display:flex;align-items:center;gap:8px;margin-left:auto;
}
.chip{
  display:inline-flex;align-items:center;padding:8px 20px;border-radius:var(--radius-badge);
  border:1px solid var(--color-border);background:transparent;font-size:14px;font-weight:500;
  color:var(--color-text-secondary);text-decoration:none;transition:all var(--transition);
  white-space:nowrap;min-height:38px;
}
.chip:hover{background:var(--color-primary-light);border-color:rgba(47,65,86,0.3);color:var(--color-primary)}
.chip.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary);font-weight:600}
.header-cta{margin-left:8px;flex-shrink:0}
.nav-toggle{display:none}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:linear-gradient(135deg,var(--color-bg) 0%,#ffffff 60%);
  padding:96px 0 88px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:0.12;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.2fr 0.8fr;gap:64px;align-items:center}
.hero-content{max-width:680px}
.hero-badge{margin-bottom:24px}
.hero h1{
  font-size:clamp(32px,4.2vw,44px);font-weight:800;line-height:1.25;color:var(--color-text);
  margin-bottom:20px;letter-spacing:0.5px;
}
.hero-sub{
  font-size:18px;color:var(--color-text-secondary);line-height:1.7;
  margin-bottom:36px;max-width:520px;
}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:36px}
.hero-trust{display:flex;gap:16px;flex-wrap:wrap}
.trust-item{
  display:inline-flex;align-items:center;gap:6px;padding:6px 14px;
  border-radius:var(--radius-badge);background:var(--color-surface);
  border:1px solid var(--color-border);font-size:12px;color:var(--color-text-secondary);
  box-shadow:var(--shadow-xs);
}
.trust-item svg{flex-shrink:0}
.hero-visual{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-lg);background:var(--color-surface);
}
.hero-visual img{width:100%;height:auto;object-fit:cover;aspect-ratio:4/3}
.hero-visual-caption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(255,255,255,0.9);backdrop-filter:blur(8px);
  border-radius:var(--radius-card);padding:16px 20px;
  box-shadow:var(--shadow-md);border:1px solid rgba(255,255,255,0.6);
}
.hero-visual-caption p{font-size:13px;color:var(--color-text-secondary);line-height:1.5}
.hero-visual-caption strong{font-size:15px;color:var(--color-text);display:block;margin-bottom:2px}

/* ===== Pain Points ===== */
.pain-section{background:var(--color-surface);border-top:1px solid var(--color-border);border-bottom:1px solid var(--color-border)}
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.pain-card{
  background:var(--color-surface);border-radius:var(--radius-card);padding:32px;
  border:1px solid var(--color-border);box-shadow:var(--shadow-md);
  transition:all var(--transition);
}
.pain-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.pain-icon{
  width:48px;height:48px;border-radius:12px;background:var(--color-primary-light);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  transition:background var(--transition);
}
.pain-card:hover .pain-icon{background:var(--color-accent-light)}
.pain-card h3{font-size:18px;font-weight:700;color:var(--color-text);margin-bottom:8px}
.pain-card p{font-size:14px;color:var(--color-text-secondary);line-height:1.7}

/* ===== Solutions ===== */
.sol-section{background:var(--color-bg)}
.sol-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:48px}
.sol-main{
  grid-column:span 8;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));
  border-radius:var(--radius-card);padding:40px;color:#fff;position:relative;overflow:hidden;
}
.sol-main::after{
  content:'';position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  border-radius:50%;background:rgba(255,255,255,0.04);
}
.sol-main .badge{background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.2)}
.sol-main h3{font-size:24px;font-weight:700;margin:16px 0 8px;color:#fff}
.sol-main .sol-scene{font-size:14px;color:rgba(255,255,255,0.75);margin-bottom:20px}
.sol-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin-bottom:28px}
.sol-list li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:rgba(255,255,255,0.9);line-height:1.6}
.sol-list li svg{flex-shrink:0;margin-top:3px}
.sol-link{color:#fff;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:4px;border-bottom:1px solid rgba(255,255,255,0.4);padding-bottom:2px;transition:border-color var(--transition)}
.sol-link:hover{border-color:#fff}
.sol-side{grid-column:span 4;display:flex;flex-direction:column;gap:24px}
.sol-side-card{
  flex:1;background:var(--color-surface);border-radius:var(--radius-card);padding:32px;
  border:1px solid var(--color-border);box-shadow:var(--shadow-md);transition:all var(--transition);
}
.sol-side-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.sol-side-card h3{font-size:18px;font-weight:700;margin-bottom:6px;color:var(--color-text)}
.sol-side-card .sol-scene{font-size:13px;color:var(--color-text-secondary);margin-bottom:16px}
.sol-side-card .sol-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.sol-side-card .sol-list li{color:var(--color-text);font-size:13px}
.sol-side-card .sol-list li svg{color:var(--color-accent)}
.sol-bottom{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.sol-bottom-card{
  background:var(--color-surface);border-radius:var(--radius-card);padding:28px 32px;
  border:1px solid var(--color-border);box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:24px;transition:all var(--transition);
}
.sol-bottom-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.sol-bottom-icon{
  width:56px;height:56px;border-radius:14px;background:var(--color-accent-light);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.sol-bottom-card h3{font-size:17px;font-weight:700;margin-bottom:6px}
.sol-bottom-card p{font-size:13px;color:var(--color-text-secondary);line-height:1.6}
.sol-bottom-card ul{list-style:none;margin-top:8px;display:flex;flex-wrap:wrap;gap:6px}
.sol-bottom-card ul li{font-size:12px;color:var(--color-text-secondary);background:var(--color-bg);padding:2px 10px;border-radius:var(--radius-badge)}

/* ===== Stats ===== */
.stats-section{
  background:var(--color-primary-dark);position:relative;overflow:hidden;padding:88px 0;
}
.stats-section::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:0.06;
}
.stats-section .container{position:relative;z-index:1}
.stats-head{text-align:center;margin-bottom:56px}
.stats-head h2{color:#fff;font-size:clamp(24px,2.8vw,32px);font-weight:700}
.stats-head p{color:#A8B7C4;font-size:16px;margin-top:12px;max-width:600px;margin-left:auto;margin-right:auto}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.stat-item{position:relative;padding:16px}
.stat-item:not(:last-child)::after{
  content:'';position:absolute;right:-16px;top:50%;transform:translateY(-50%);
  width:1px;height:60px;background:rgba(255,255,255,0.1);
}
.stat-num{
  font-family:var(--font-serif);font-size:clamp(32px,3vw,52px);font-weight:700;color:var(--color-accent);
  line-height:1.1;display:block;margin-bottom:8px;
}
.stat-label{font-size:14px;color:#A8B7C4}
.stats-cta{text-align:center;margin-top:56px}

/* ===== News ===== */
.news-section{background:var(--color-surface)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:40px}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.news-card{
  display:flex;gap:20px;background:var(--color-surface);border-radius:var(--radius-card);
  border:1px solid var(--color-border);box-shadow:var(--shadow-xs);overflow:hidden;
  transition:all var(--transition);
}
.news-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.news-thumb{
  width:160px;flex-shrink:0;overflow:hidden;background:var(--color-primary-light);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:20px 24px 20px 0;flex:1;display:flex;flex-direction:column}
.news-body h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--color-text)}
.news-body h3 a:hover{color:var(--color-primary)}
.news-excerpt{
  font-size:14px;color:var(--color-text-secondary);line-height:1.6;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12px;color:var(--color-text-secondary)}
.news-meta .badge{font-size:11px}
.news-meta .read-link{margin-left:auto;font-size:13px;font-weight:600}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:200px;background:var(--color-bg);border-radius:var(--radius-card);
  border:1px dashed var(--color-border);color:var(--color-text-secondary);font-size:14px;
}

/* ===== CTA Banner ===== */
.cta-banner{
  position:relative;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);
  border-radius:var(--radius-card);padding:56px 48px;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-banner::before{
  content:'';position:absolute;right:0;top:0;width:50%;height:100%;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:0.08;
}
.cta-banner-content{position:relative;z-index:1}
.cta-banner h2{color:#fff;font-size:clamp(22px,2.5vw,30px);font-weight:700;margin-bottom:12px}
.cta-banner p{color:#A8B7C4;font-size:15px;max-width:560px;line-height:1.6}
.cta-banner .btn{position:relative;z-index:1;flex-shrink:0}
.privacy-note{
  font-size:12px;color:var(--color-text-secondary);margin-top:16px;
  display:flex;align-items:center;gap:6px;line-height:1.5;
}
.cta-section-inner{position:relative}
.cta-section-inner::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:0.06;
}

/* ===== FAQ ===== */
.faq-section{background:var(--color-bg)}
.faq-layout{display:grid;grid-template-columns:0.85fr 1.5fr;gap:64px}
.faq-left h2{margin-bottom:16px}
.faq-left p{color:var(--color-text-secondary);font-size:15px;line-height:1.7;margin-bottom:28px}
.faq-list{display:flex;flex-direction:column}
.faq-item{
  background:var(--color-surface);border-radius:var(--radius-card);
  border:1px solid var(--color-border);margin-bottom:12px;overflow:hidden;
  transition:all var(--transition);
}
.faq-item.active{border-color:var(--color-accent);box-shadow:var(--shadow-md)}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--color-text);
  text-align:left;width:100%;min-height:56px;transition:color var(--transition);
}
.faq-question:hover{color:var(--color-primary)}
.faq-icon{
  width:24px;height:24px;border-radius:50%;background:var(--color-primary-light);
  display:flex;align-items:center;justify-content:center;color:var(--color-primary);
  font-size:18px;line-height:1;transition:all var(--transition);flex-shrink:0;
}
.faq-item.active .faq-icon{background:var(--color-accent);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease;padding:0 24px}
.faq-item.active .faq-answer{max-height:300px;padding-bottom:20px}
.faq-answer p{font-size:14px;color:var(--color-text-secondary);line-height:1.8}

/* ===== Footer ===== */
.site-footer{background:var(--color-primary-dark);color:#A8B7C4;padding:64px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-mark{background:var(--color-accent);color:var(--color-primary-dark)}
.footer-desc{font-size:14px;line-height:1.7;color:#A8B7C4;max-width:280px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:20px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#A8B7C4;font-size:14px;text-decoration:none;transition:color var(--transition)}
.footer-links a:hover{color:var(--color-accent)}
.footer-contact{font-size:14px;line-height:2}
.footer-contact span{display:block}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.08);padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#7A8B9A;
}

/* ===== Modal ===== */
.modal-overlay{
  position:fixed;inset:0;background:rgba(31,42,55,0.6);z-index:200;
  display:flex;align-items:center;justify-content:center;padding:16px;
  opacity:0;visibility:hidden;transition:opacity var(--transition),visibility var(--transition);
}
.modal-overlay.open{opacity:1;visibility:visible}
.modal-box{
  background:var(--color-surface);border-radius:var(--radius-modal);max-width:480px;width:100%;
  box-shadow:var(--shadow-lg);padding:40px;position:relative;transform:translateY(16px);transition:transform var(--transition);
  max-height:90vh;overflow-y:auto;
}
.modal-overlay.open .modal-box{transform:translateY(0)}
.modal-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;background:var(--color-bg);
  color:var(--color-text);font-size:22px;line-height:1;transition:all var(--transition);
}
.modal-close:hover{background:var(--color-primary-light);color:var(--color-primary)}
.modal-box h2{font-size:20px;font-weight:700;color:var(--color-text);margin-bottom:8px}
.modal-subtext{font-size:14px;color:var(--color-text-secondary);margin-bottom:28px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--color-text);margin-bottom:6px}
.form-group input,.form-group textarea{
  width:100%;padding:12px 14px;border:1px solid var(--color-border);border-radius:6px;
  font-size:15px;color:var(--color-text);background:var(--color-bg);transition:all var(--transition);
}
.form-group input:focus,.form-group textarea:focus{
  outline:none;border-color:var(--color-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(47,65,86,0.12);
}
.consent{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--color-text-secondary);margin-bottom:16px;cursor:pointer}
.consent input{margin-top:3px;width:16px;height:16px;flex-shrink:0}
.privacy-line{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--color-text-secondary);margin-bottom:20px}
.privacy-line svg{flex-shrink:0}

/* ===== Reveal Animation (克制) ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.6s ease,transform 0.6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;transform:none!important;animation:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ===== Responsive ===== */
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero{padding:72px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{max-width:560px;margin:0 auto}
  .pain-grid{grid-template-columns:1fr 1fr}
  .sol-main{grid-column:span 12}
  .sol-side{grid-column:span 12;flex-direction:row}
  .sol-side-card{flex:1}
  .stats-grid{gap:16px}
  .stats-grid .stat-item:nth-child(2)::after{display:none}
  .news-list{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr;gap:48px}
  .cta-banner{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:48px 0}
  .container{padding:0 16px}
  .header-inner{height:auto;flex-wrap:wrap;padding:10px 16px;row-gap:10px}
  .site-nav{
    order:3;width:100%;margin-left:0;overflow-x:auto;
    -webkit-overflow-scrolling:touch;padding-bottom:4px;gap:6px;
  }
  .site-nav::-webkit-scrollbar{display:none}
  .chip{padding:12px 18px;font-size:14px;min-height:44px}
  .header-cta{padding:10px 18px;font-size:14px;min-height:40px}
  .nav-toggle{display:none}
  .hero{padding:56px 0 48px}
  .hero h1{font-size:28px;line-height:1.3}
  .hero-sub{font-size:16px;text-align:center}
  .hero-content{text-align:center}
  .hero-ctas{justify-content:center}
  .hero-trust{justify-content:center}
  .pain-grid{grid-template-columns:1fr;gap:16px}
  .pain-card{padding:24px}
  .sol-main{padding:28px 24px}
  .sol-list{grid-template-columns:1fr}
  .sol-side{flex-direction:column}
  .sol-bottom{grid-template-columns:1fr}
  .sol-bottom-card{flex-direction:column;text-align:center;gap:16px}
  .stats-grid{grid-template-columns:1fr 1fr;gap:24px}
  .stat-item::after{display:none!important}
  .stat-num{font-size:32px}
  .news-list{grid-template-columns:1fr}
  .news-card{flex-direction:column}
  .news-thumb{width:100%;height:160px}
  .news-body{padding:16px 20px 20px}
  .cta-banner{padding:32px 24px}
  .cta-banner .btn{width:100%}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-question{font-size:15px;padding:16px 20px}
  .faq-answer{padding:0 20px}
  .faq-item.active .faq-answer{padding-bottom:16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .modal-box{padding:32px 24px;margin:12px;border-radius:14px}
}

/* roulang page: category1 */
:root {
  --color-primary: #2F4156;
  --color-primary-hover: #253546;
  --color-primary-dark: #1E2B3A;
  --color-primary-light: #E8EEF4;
  --color-accent: #C4A276;
  --color-accent-light: #F7F1E6;
  --color-bg: #F5F7FA;
  --color-surface: #FFFFFF;
  --color-text: #1F2A37;
  --color-text-secondary: #667085;
  --color-border: #E4E7EC;
  --color-success: #2E7D5B;
  --color-warning: #D97706;
  --color-error: #C0392B;
  --shadow-xs: 0 1px 2px rgba(31, 42, 55, 0.05);
  --shadow-md: 0 6px 24px rgba(31, 42, 55, 0.08);
  --shadow-lg: 0 16px 40px rgba(31, 42, 55, 0.12);
  --radius-btn: 6px;
  --radius-card: 12px;
  --radius-img: 8px;
  --radius-modal: 16px;
  --radius-pill: 999px;
  --transition: 0.25s ease;
  --container-max: 1200px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --space-section: 96px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul, ol {
  list-style: none;
}

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

.section {
  padding: var(--space-section) 0;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: 72px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

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

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-primary);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0;
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  flex: 1;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
  min-height: 40px;
}

.chip:hover {
  background: var(--color-primary-light);
  border-color: rgba(47, 65, 86, 0.3);
  color: var(--color-primary);
}

.chip.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  min-height: 44px;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-accent {
  background: var(--color-accent);
  color: #1E2B3A;
}

.btn-accent:hover {
  background: #b89568;
  color: #1E2B3A;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-light:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.header-cta {
  flex-shrink: 0;
  padding: 10px 20px;
  font-size: 14px;
}

/* ===== Banner ===== */
.category-banner {
  position: relative;
  padding: 96px 0 80px;
  background: linear-gradient(135deg, var(--color-bg) 0%, #fff 55%, var(--color-primary-light) 100%);
  overflow: hidden;
}

.category-banner::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 100%;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.07;
  pointer-events: none;
}

.category-banner::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(196, 162, 118, 0.3);
  pointer-events: none;
}

.banner-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 768px;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-light);
  color: #8B6C42;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.banner-inner h1 {
  font-size: clamp(32px, 4.2vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 20px;
}

.banner-inner .banner-desc {
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: 32px;
}

.banner-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

/* ===== 服务内容 ===== */
.service-category {
  background: var(--color-surface);
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

.service-card {
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(47, 65, 86, 0.15);
}

.service-card .icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-card .icon-wrap svg {
  width: 24px;
  height: 24px;
  stroke: var(--color-primary);
  stroke-width: 1.8;
  fill: none;
}

.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

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

/* ===== 优势 ===== */
.advantages {
  background: var(--color-primary-dark);
  position: relative;
  overflow: hidden;
}

.advantages::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity: 0.04;
  pointer-events: none;
}

.advantages .section-header h2 {
  color: #fff;
}

.advantages .section-header p {
  color: rgba(255, 255, 255, 0.7);
}

.advantages .section-tag {
  background: rgba(196, 162, 118, 0.2);
  color: var(--color-accent);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 24px;
}

.advantage-item {
  text-align: center;
  padding: 24px 16px;
}

.advantage-item .number {
  font-family: var(--font-serif);
  font-size: clamp(32px, 3vw, 48px);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
  display: block;
  margin-bottom: 8px;
}

.advantage-item .label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
}

.advantage-item + .advantage-item {
  border-left: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== 适用场景 ===== */
.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.scenario-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  padding: 32px;
  transition: all var(--transition);
}

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

.scenario-card .scenario-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.scenario-card .scenario-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.scenario-card .scenario-icon svg {
  width: 20px;
  height: 20px;
  stroke: #8B6C42;
  stroke-width: 1.8;
  fill: none;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.scenario-list {
  list-style: none;
}

.scenario-list li {
  font-size: 14px;
  color: var(--color-text);
  padding: 6px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.scenario-list li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== 流程 ===== */
.process {
  background: var(--color-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding: 0 48px;
}

.process-step {
  text-align: center;
  position: relative;
  padding: 0 8px;
}

.process-step::after {
  content: "→";
  position: absolute;
  top: 36px;
  right: -20px;
  font-size: 20px;
  color: var(--color-accent);
}

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

.process-step .step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--color-primary-light);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.process-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.process-step p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ===== 图文专区 ===== */
.biz-section {
  background: var(--color-bg);
}

.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  margin-bottom: 96px;
}

.split-block:last-child {
  margin-bottom: 0;
}

.split-block.reverse .split-text {
  order: 1;
}

.split-block.reverse .split-image {
  order: 2;
}

.split-image {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.split-image img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.split-image:hover img {
  transform: scale(1.03);
}

.split-text .section-tag {
  margin-bottom: 12px;
}

.split-text h2 {
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 20px;
}

.split-text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.split-text p:last-of-type {
  margin-bottom: 24px;
}

.feature-list {
  margin-top: 20px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  color: var(--color-text);
}

.feature-list li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== CTA ===== */
.cta-banner {
  background: linear-gradient(120deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.cta-text h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.3;
}

.cta-text p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
}

.cta-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--color-bg);
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
}

.faq-sidebar h2 {
  font-size: clamp(24px, 2.5vw, 30px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 16px;
}

.faq-sidebar p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.faq-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.faq-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-primary);
  fill: none;
  stroke-width: 2;
}

.faq-list {
  border-top: 1px solid var(--color-border);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: all var(--transition);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  text-align: left;
  min-height: 60px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition);
}

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

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--color-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.faq-icon::before {
  width: 14px;
  height: 2px;
}

.faq-icon::after {
  width: 2px;
  height: 14px;
}

.faq-item.active .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-secondary);
  border-left: 3px solid var(--color-accent);
  margin-left: 24px;
  margin-right: 24px;
  margin-bottom: 16px;
  padding-left: 16px;
}

/* ===== 相关阅读 ===== */
.related-links {
  background: var(--color-surface);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}

.related-card {
  background: var(--color-bg);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  display: block;
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: rgba(47, 65, 86, 0.2);
}

.related-card .related-tag {
  display: inline-block;
  font-size: 12px;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 12px;
}

.related-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 8px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.related-arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.related-arrow svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-primary);
  fill: none;
  stroke-width: 2;
  transition: transform var(--transition);
}

.related-card:hover .related-arrow svg {
  transform: translateX(4px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary-dark);
  padding: 64px 0 32px;
  color: rgba(255, 255, 255, 0.8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand-mark {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-accent);
}

.footer-brand .brand-text {
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 16px;
  max-width: 260px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  transition: color var(--transition);
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact span {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(31, 42, 55, 0.6);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-modal);
  max-width: 480px;
  width: 100%;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: translateY(16px);
  transition: transform var(--transition);
}

.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  font-size: 22px;
  transition: all var(--transition);
}

.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.modal h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.modal .modal-sub {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47, 65, 86, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.form-check input {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--color-primary);
}

.form-hint {
  font-size: 12px;
  color: #A0AABA;
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1.5;
}

.form-hint svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  flex-shrink: 0;
}

.form-privacy {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

/* Responsive */
@media (max-width: 1023px) {
  :root {
    --space-section: 64px;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  :root {
    --space-section: 48px;
  }

  .container {
    padding: 0 16px;
  }

  .site-header {
    height: auto;
    min-height: 60px;
  }

  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 10px 0;
    gap: 8px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
    border-radius: 8px;
  }

  .brand-text {
    font-size: 17px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 4px;
    gap: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    padding-bottom: 8px;
  }

  .site-nav::-webkit-scrollbar {
    height: 3px;
  }

  .site-nav::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 999px;
  }

  .chip {
    padding: 6px 14px;
    font-size: 13px;
    min-height: 36px;
    flex-shrink: 0;
  }

  .header-cta {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 36px;
  }

  .section-header {
    margin-bottom: 40px;
  }

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

  .section-header p {
    font-size: 15px;
  }

  .category-banner {
    padding: 64px 0 56px;
  }

  .category-banner::before {
    width: 100%;
    opacity: 0.04;
  }

  .banner-inner {
    align-items: center;
    text-align: center;
  }

  .banner-inner h1 {
    font-size: 30px;
  }

  .banner-inner .banner-desc {
    font-size: 16px;
  }

  .banner-actions {
    justify-content: center;
    flex-direction: column;
    width: 100%;
  }

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

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

  .service-card {
    padding: 24px;
  }

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

  .advantage-item {
    padding: 16px 8px;
  }

  .advantage-item + .advantage-item {
    border-left: none;
  }

  .advantage-item:nth-child(3) {
    border-left: none;
  }

  .advantage-item .number {
    font-size: 32px;
  }

  .advantage-item .label {
    font-size: 13px;
  }

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

  .scenario-card {
    padding: 24px;
  }

  .process-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0;
    margin-top: 32px;
  }

  .process-step::after {
    content: "↓";
    top: auto;
    bottom: -24px;
    right: 50%;
    transform: translateX(50%);
  }

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

  .split-block {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 64px;
  }

  .split-block.reverse .split-text {
    order: 2;
  }

  .split-block.reverse .split-image {
    order: 1;
  }

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

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .faq-sidebar {
    text-align: left;
  }

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

  .faq-answer-inner {
    margin-left: 16px;
    margin-right: 16px;
    padding-left: 12px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .modal {
    padding: 32px 24px;
    max-height: 90vh;
    overflow-y: auto;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .service-grid {
    grid-template-columns: 1fr 1fr;
  }

  .service-card:nth-child(3) {
    grid-column: 1 / -1;
  }

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

  .advantage-item:nth-child(3) {
    border-left: none;
  }

  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 0;
  }

  .process-step::after {
    content: "↓";
    top: auto;
    bottom: -28px;
    right: 50%;
    transform: translateX(50%);
  }

  .process-step:nth-child(2)::after {
    display: none;
  }

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

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

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

/* roulang page: article */
:root {
            --color-primary: #2F4156;
            --color-primary-hover: #253546;
            --color-primary-dark: #1E2B3A;
            --color-primary-light: #E8EEF4;
            --color-accent: #C4A276;
            --color-accent-light: #F7F1E6;
            --color-bg: #F5F7FA;
            --color-surface: #FFFFFF;
            --color-text: #1F2A37;
            --color-text-secondary: #667085;
            --color-border: #E4E7EC;
            --color-success: #2E7D5B;
            --color-warning: #D97706;
            --color-error: #C0392B;
            --shadow-xs: 0 1px 2px rgba(31, 42, 55, 0.05);
            --shadow-md: 0 6px 24px rgba(31, 42, 55, 0.08);
            --shadow-lg: 0 16px 40px rgba(31, 42, 55, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text);
            background: var(--color-bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            min-height: 44px;
            white-space: nowrap;
        }

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

        .btn-primary:hover {
            background: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

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

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

        .btn-light {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
        }

        .btn-light:hover {
            background: var(--color-accent-light);
            border-color: var(--color-accent);
            color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

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

        .btn-accent:hover {
            background: #B49262;
            border-color: #B49262;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
            height: 72px;
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .brand-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-primary);
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            border-radius: var(--radius-sm);
            letter-spacing: 0;
        }

        .brand-text {
            font-size: 19px;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: 0.5px;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
            overflow-x: auto;
            scrollbar-width: none;
            padding: 0 8px;
        }

        .site-nav::-webkit-scrollbar {
            display: none;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 20px;
            border-radius: var(--radius-pill);
            background: transparent;
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
            min-height: 38px;
        }

        .chip:hover {
            background: var(--color-primary-light);
            border-color: rgba(47, 65, 86, 0.3);
            color: var(--color-primary);
        }

        .chip.active {
            background: var(--color-primary);
            border-color: var(--color-primary);
            color: #fff;
        }

        .header-cta {
            flex-shrink: 0;
            padding: 10px 22px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 24px 0 8px;
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .breadcrumb a {
            color: var(--color-text-secondary);
        }

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

        .breadcrumb .sep {
            color: var(--color-border);
        }

        .breadcrumb .current {
            color: var(--color-text);
            font-weight: 500;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 240px;
        }

        .article-main {
            padding: 40px 0 0;
        }

        .article-wrap {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .article-header {
            padding: 24px 0 20px;
        }

        .category-badge {
            display: inline-block;
            padding: 4px 14px;
            background: var(--color-primary-light);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .article-header h1 {
            font-size: clamp(28px, 3.6vw, 38px);
            font-weight: 800;
            line-height: 1.35;
            color: var(--color-text);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--color-text-secondary);
            align-items: center;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .divider {
            width: 1px;
            height: 14px;
            background: var(--color-border);
        }

        .article-cover {
            margin-bottom: 32px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .article-cover img {
            width: 100%;
            height: auto;
            max-height: 420px;
            object-fit: cover;
        }

        .article-content {
            font-size: 17px;
            line-height: 1.85;
            color: var(--color-text);
        }

        .article-content > * + * {
            margin-top: 1.2em;
        }

        .article-content p {
            margin: 1em 0;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-text);
            margin: 2em 0 0.8em;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--color-border);
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            color: var(--color-text);
            margin: 1.6em 0 0.6em;
        }

        .article-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text);
            margin: 1.4em 0 0.5em;
        }

        .article-content a {
            color: var(--color-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-content a:hover {
            color: var(--color-primary-hover);
        }

        .article-content ul,
        .article-content ol {
            padding-left: 1.6em;
            margin: 1em 0;
        }

        .article-content ul li {
            list-style-type: disc;
            margin: 0.4em 0;
            line-height: 1.8;
        }

        .article-content ol li {
            list-style-type: decimal;
            margin: 0.4em 0;
            line-height: 1.8;
        }

        .article-content blockquote {
            border-left: 3px solid var(--color-accent);
            background: var(--color-accent-light);
            padding: 18px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.6em 0;
            color: var(--color-text-secondary);
            font-style: normal;
        }

        .article-content blockquote p {
            margin: 0;
        }

        .article-content img {
            max-width: 100%;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            margin: 1.5em 0;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
            margin: 1.5em 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-content th {
            background: var(--color-primary-light);
            font-weight: 600;
            color: var(--color-primary);
        }

        .article-content tr:nth-child(even) td {
            background: #FAFBFC;
        }

        .article-content code {
            background: var(--color-primary-light);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            font-family: "SFMono-Regular", Consolas, monospace;
        }

        .article-content pre {
            background: var(--color-primary-dark);
            color: #D5E0EA;
            padding: 20px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.5em 0;
            font-size: 14px;
            line-height: 1.7;
        }

        .article-content pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        .not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--color-surface);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            margin: 40px 0;
        }

        .not-found-icon {
            width: 64px;
            height: 64px;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
        }

        .not-found h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found p {
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        .article-footer-tools {
            margin: 40px 0 0;
            padding: 24px 0;
            border-top: 1px solid var(--color-border);
        }

        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 20px;
        }

        .tag {
            display: inline-block;
            padding: 4px 14px;
            background: var(--color-accent-light);
            color: var(--color-primary);
            font-size: 13px;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
        }

        .tag:hover {
            background: var(--color-accent);
            color: #fff;
        }

        .prev-next {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .post-nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-secondary);
            padding: 10px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .post-nav-link:hover {
            color: var(--color-primary);
            border-color: var(--color-primary);
            background: var(--color-primary-light);
        }

        .post-nav-link .arrow {
            transition: transform var(--transition);
        }

        .post-nav-link:hover .arrow-left {
            transform: translateX(-3px);
        }

        .post-nav-link:hover .arrow-right {
            transform: translateX(3px);
        }

        .back-list {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--color-primary);
        }

        .related-section {
            margin-top: 64px;
            padding: 64px 0;
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
        }

        .related-title {
            font-size: clamp(22px, 2.4vw, 28px);
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-title::before {
            content: '';
            width: 4px;
            height: 24px;
            background: var(--color-accent);
            border-radius: 2px;
        }

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

        .related-card {
            display: flex;
            gap: 16px;
            background: var(--color-bg);
            border-radius: var(--radius-md);
            padding: 16px;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .related-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--color-border);
            transform: translateY(-3px);
        }

        .related-thumb {
            width: 96px;
            height: 72px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background: var(--color-primary-light);
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }

        .related-body h3 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text);
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-body p {
            font-size: 13px;
            color: var(--color-text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            color: var(--color-primary);
            margin-top: 8px;
        }

        .related-link .arrow {
            transition: transform var(--transition);
        }

        .related-link:hover .arrow {
            transform: translateX(3px);
        }

        .cta-banner {
            background: var(--color-primary-dark);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            padding: 64px 0;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(30, 43, 58, 0.85);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-text h2 {
            font-size: clamp(22px, 2.6vw, 28px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-text p {
            color: #A8B7C4;
            font-size: 15px;
        }

        .site-footer {
            background: var(--color-primary-dark);
            padding: 64px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .brand .brand-mark {
            background: var(--color-accent);
        }

        .footer-brand .brand .brand-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #A8B7C4;
            margin-top: 16px;
            max-width: 300px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

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

        .footer-links a {
            color: #A8B7C4;
            font-size: 14px;
            transition: all var(--transition);
        }

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

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

        .footer-contact span {
            color: #A8B7C4;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #7E8B99;
        }

        .footer-bottom a {
            color: #7E8B99;
        }

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

        .modal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(31, 42, 55, 0.6);
            z-index: 200;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 16px;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            max-width: 480px;
            width: 100%;
            padding: 32px;
            position: relative;
            max-height: 90vh;
            overflow-y: auto;
        }

        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: none;
            border-radius: 50%;
            font-size: 22px;
            color: var(--color-text-secondary);
            cursor: pointer;
            transition: all var(--transition);
        }

        .modal-close:hover {
            background: var(--color-primary-light);
            color: var(--color-primary);
        }

        .modal-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
        }

        .modal-subtitle {
            font-size: 14px;
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .form-group input[type="text"],
        .form-group input[type="tel"],
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--color-text);
            background: var(--color-surface);
            transition: all var(--transition);
            outline: none;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(47, 65, 86, 0.12);
        }

        .form-group textarea {
            min-height: 80px;
            resize: vertical;
        }

        .form-check {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-bottom: 16px;
        }

        .form-check input {
            margin-top: 4px;
            flex-shrink: 0;
        }

        .form-check span {
            font-size: 12px;
            color: var(--color-text-secondary);
            line-height: 1.5;
        }

        .form-submit {
            width: 100%;
        }

        .privacy-note {
            display: flex;
            align-items: flex-start;
            gap: 6px;
            font-size: 12px;
            color: var(--color-text-secondary);
            margin-top: 14px;
            line-height: 1.5;
        }

        .privacy-note svg {
            flex-shrink: 0;
            width: 14px;
            height: 14px;
            margin-top: 2px;
        }

        :focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
        }

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

        @media (max-width: 1023px) and (min-width: 768px) {
            .header-inner {
                gap: 12px;
            }

            .brand-text {
                font-size: 17px;
            }

            .chip {
                padding: 8px 14px;
                font-size: 13px;
            }

            .header-cta {
                padding: 8px 16px;
                font-size: 14px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .related-card:last-child {
                display: none;
            }

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

        @media (max-width: 767px) {
            .container {
                padding: 0 16px;
            }

            .site-header,
            .header-inner {
                height: 60px;
            }

            .header-inner {
                gap: 8px;
                flex-wrap: nowrap;
            }

            .brand-mark {
                width: 32px;
                height: 32px;
                font-size: 17px;
            }

            .brand-text {
                font-size: 16px;
            }

            .site-nav {
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                background: var(--color-surface);
                border-bottom: 1px solid var(--color-border);
                padding: 8px 16px;
                justify-content: flex-start;
                gap: 8px;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                box-shadow: var(--shadow-xs);
            }

            .chip {
                padding: 6px 14px;
                font-size: 13px;
                flex-shrink: 0;
            }

            .header-cta {
                padding: 8px 14px;
                font-size: 13px;
                white-space: nowrap;
            }

            .breadcrumb {
                padding: 16px 0 4px;
                font-size: 13px;
            }

            .article-main {
                padding-top: 24px;
            }

            .article-wrap {
                padding: 0 16px;
            }

            .article-header {
                padding: 16px 0 16px;
            }

            .article-header h1 {
                font-size: 24px;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
                flex-wrap: wrap;
            }

            .article-cover {
                margin-bottom: 24px;
            }

            .article-content {
                font-size: 16px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 17px;
            }

            .related-section {
                margin-top: 40px;
                padding: 40px 0;
            }

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

            .related-card {
                padding: 12px;
            }

            .cta-banner {
                padding: 48px 0;
            }

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

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

            .site-footer {
                padding: 48px 0 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .modal {
                padding: 24px 20px;
            }

            .modal-overlay {
                align-items: flex-end;
                padding: 12px;
            }

            .modal {
                max-height: 92vh;
            }

            .prev-next {
                flex-direction: column;
                align-items: stretch;
            }

            .post-nav-link {
                justify-content: center;
            }
        }

/* roulang page: category2 */
/* ===== Design Tokens ===== */
  :root {
    --color-primary: #2F4156;
    --color-primary-hover: #253546;
    --color-primary-dark: #1E2B3A;
    --color-primary-light: #E8EEF4;
    --color-accent: #C4A276;
    --color-accent-light: #F7F1E6;
    --color-bg: #F5F7FA;
    --color-surface: #FFFFFF;
    --color-text: #1F2A37;
    --color-text-secondary: #667085;
    --color-border: #E4E7EC;
    --shadow-xs: 0 1px 2px rgba(31, 42, 55, 0.05);
    --shadow-md: 0 6px 24px rgba(31, 42, 55, 0.08);
    --shadow-lg: 0 16px 40px rgba(31, 42, 55, 0.12);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;
    --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-serif: Georgia, "Times New Roman", serif;
    --container: 1200px;
    --space-section: 96px;
    --transition: 0.25s ease;
  }

  /* ===== Base Reset ===== */
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }
  body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
  }
  img {
    max-width: 100%;
    display: block;
  }
  a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
  }
  a:hover {
    color: var(--color-primary-hover);
  }
  button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
  }
  input, textarea {
    font-family: inherit;
    font-size: 14px;
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition, box-shadow var(--transition));
  }
  input:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(47, 65, 86, 0.12);
  }
  :focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
  }

  /* ===== Container ===== */
  .container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
  }
  .btn-primary {
    background: var(--color-primary);
    color: #fff;
  }
  .btn-primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
  }
  .btn-outline {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
  }
  .btn-outline:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
    transform: translateY(-1px);
  }
  .btn-accent {
    background: var(--color-accent);
    color: #1F2A37;
  }
  .btn-accent:hover {
    filter: brightness(0.94);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: #1F2A37;
  }
  .btn-lg {
    padding: 14px 32px;
    font-size: 16px;
    min-height: 48px;
  }
  .btn-block {
    width: 100%;
    padding: 14px;
    min-height: 48px;
  }
  .btn-disabled {
    opacity: 0.7;
    cursor: default;
    pointer-events: none;
  }

  /* ===== Section Head ===== */
  .section-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.03em;
    margin-bottom: 16px;
  }
  .section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
  }
  .section-head h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: 14px;
  }
  .section-head p {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.7;
  }

  /* ===== Header / Nav ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
  }
  .header-inner {
    display: flex;
    align-items: center;
    height: 72px;
    gap: 28px;
  }
  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    text-decoration: none;
  }
  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 800;
    font-size: 19px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.02em;
    white-space: nowrap;
  }
  .site-nav {
    display: flex;
    gap: 8px;
    margin: 0 auto;
  }
  .chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--color-border);
    background: transparent;
    font-size: 14px;
    line-height: 1.4;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
  }
  .chip:hover {
    background: var(--color-primary-light);
    border-color: rgba(47, 65, 86, 0.3);
    color: var(--color-primary);
  }
  .chip.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
    font-weight: 600;
  }
  .header-cta {
    flex-shrink: 0;
  }

  /* ===== Breadcrumb ===== */
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
  }
  .breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
  }
  .breadcrumb a:hover {
    color: var(--color-primary);
  }
  .breadcrumb span[aria-current="page"] {
    color: var(--color-primary);
    font-weight: 500;
  }
  .breadcrumb .sep {
    color: var(--color-border);
  }

  /* ===== Category Hero ===== */
  .category-hero {
    position: relative;
    padding: 80px 0 80px;
    background: linear-gradient(180deg, var(--color-bg) 0%, #ffffff 100%);
    overflow: hidden;
  }
  .category-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
    opacity: 0.08;
    pointer-events: none;
  }
  .category-hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 64px;
    align-items: center;
  }
  .category-hero-content {
    max-width: 640px;
  }
  .eyebrow {
    display: inline-block;
    padding: 5px 16px;
    border-radius: var(--radius-pill);
    background: var(--color-accent-light);
    color: #8B6E3F;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 20px;
  }
  .category-hero h1 {
    font-size: clamp(32px, 4.2vw, 44px);
    font-weight: 800;
    line-height: 1.25;
    color: var(--color-text);
    margin-bottom: 20px;
  }
  .category-hero .hero-sub {
    font-size: 17px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    max-width: 560px;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 28px;
  }
  .hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  .badge-round {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    border-radius: var(--radius-pill);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 12px;
    color: var(--color-text-secondary);
    box-shadow: var(--shadow-xs);
  }
  .category-hero-visual {
    position: relative;
  }
  .hero-panel {
    display: grid;
    gap: 16px;
  }
  .panel-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px 28px;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(4px);
  }
  .panel-card:first-child {
    transform: rotate(1deg);
  }
  .panel-card:last-child {
    transform: rotate(-1deg) translateX(8px);
  }
  .panel-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: 8px;
  }
  .panel-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.4;
    margin-bottom: 4px;
  }
  .panel-note {
    display: block;
    font-size: 13px;
    color: var(--color-text-secondary);
    line-height: 1.6;
  }

  /* ===== Split Section ===== */
  .split-section {
    padding: var(--space-section) 0;
    background: var(--color-surface);
  }
  .split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .split-media img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
  }
  .split-content h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 18px;
    color: var(--color-text);
  }
  .split-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 14px;
  }
  .check-list {
    list-style: none;
    margin-top: 22px;
  }
  .check-list li {
    position: relative;
    padding-left: 30px;
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: 12px;
  }
  .check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-accent-light);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23C4A276' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 8l3 3 5-6'/%3E%3C/svg%3E");
    background-size: 12px 12px;
    background-position: center;
    background-repeat: no-repeat;
  }

  /* ===== Dimensions Section ===== */
  .dimensions-section {
    padding: var(--space-section) 0;
    background: var(--color-bg);
  }
  .dimension-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
  .dimension-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 28px;
    box-shadow: var(--shadow-xs);
    transition: all var(--transition);
  }
  .dimension-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: rgba(47, 65, 86, 0.15);
  }
  .dimension-card svg {
    width: 40px;
    height: 40px;
    color: var(--color-primary);
    margin-bottom: 18px;
    transition: color var(--transition);
  }
  .dimension-card:hover svg {
    color: var(--color-accent);
  }
  .dimension-card h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--color-text);
    margin-bottom: 10px;
  }
  .dimension-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
  }

  /* ===== Audience Section ===== */
  .audience-section {
    padding: var(--space-section) 0;
    background: var(--color-surface);
  }
  .audience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }
  .audience-content h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 18px;
    color: var(--color-text);
  }
  .audience-content > p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 28px;
  }
  .audience-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .audience-item {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: all var(--transition);
  }
  .audience-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
  }
  .audience-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
  }
  .audience-item p {
    font-size: 13px;
    line-height: 1.6;
    color: var(--color-text-secondary);
  }
  .audience-media img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    object-fit: cover;
    aspect-ratio: 4 / 3;
  }

  /* ===== Process Section ===== */
  .process-section {
    padding: var(--space-section) 0;
    background: var(--color-bg);
  }
  .process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  .process-step {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 24px 28px;
    box-shadow: var(--shadow-xs);
    transition: all var(--transition);
  }
  .process-step:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
  }
  .step-number {
    display: block;
    font-family: var(--font-serif);
    font-size: 40px;
    font-weight: 700;
    line-height: 1;
    color: var(--color-accent);
    margin-bottom: 18px;
  }
  .process-step h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
  }
  .process-step p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-secondary);
  }
  .process-step::after {
    content: "→";
    position: absolute;
    top: 50%;
    right: -18px;
    transform: translateY(-50%);
    color: var(--color-border);
    font-size: 20px;
    z-index: 2;
  }
  .process-step:last-child::after {
    display: none;
  }

  /* ===== FAQ Section ===== */
  .faq-section {
    padding: var(--space-section) 0;
    background: var(--color-surface);
  }
  .faq-layout {
    display: grid;
    grid-template-columns: 0.85fr 1.4fr;
    gap: 64px;
    align-items: start;
  }
  .faq-intro h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: 16px;
  }
  .faq-intro p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
  }
  .faq-list {
    border-top: 1px solid var(--color-border);
  }
  .faq-item {
    border-bottom: 1px solid var(--color-border);
  }
  .faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 22px 4px;
    background: none;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-text);
    transition: color var(--transition);
    cursor: pointer;
  }
  .faq-question:hover {
    color: var(--color-primary);
  }
  .faq-item.open .faq-question {
    color: var(--color-primary);
  }
  .faq-icon {
    position: relative;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--color-primary);
    border-radius: 2px;
    transition: transform var(--transition), background var(--transition);
  }
  .faq-icon::before {
    width: 18px;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
  }
  .faq-icon::after {
    width: 2px;
    height: 18px;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
  }
  .faq-item.open .faq-icon::after {
    transform: translateX(-50%) scaleY(0);
  }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .faq-item.open .faq-answer {
    max-height: 320px;
  }
  .faq-answer p {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-text-secondary);
    padding: 0 4px 22px;
  }

  /* ===== CTA Banner ===== */
  .cta-banner {
    position: relative;
    padding: 72px 0 48px;
    background: var(--color-primary-dark);
    overflow: hidden;
  }
  .cta-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-1.png") center / cover no-repeat;
    opacity: 0.07;
    pointer-events: none;
  }
  .cta-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
  }
  .cta-content h2 {
    font-size: clamp(24px, 2.8vw, 32px);
    font-weight: 700;
    line-height: 1.3;
    color: #fff;
    margin-bottom: 12px;
  }
  .cta-content p {
    font-size: 15px;
    line-height: 1.7;
    color: #A8B7C4;
    max-width: 560px;
  }
  .cta-banner .privacy-note {
    position: relative;
    text-align: center;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
    margin-top: 40px;
    line-height: 1.6;
  }

  /* ===== Related Reads ===== */
  .related-section {
    padding: var(--space-section) 0;
    background: var(--color-bg);
  }
  .related-list {
    border-top: 1px solid var(--color-border);
    max-width: 860px;
    margin: 0 auto;
  }
  .related-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px 12px;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    transition: all var(--transition);
  }
  .related-item:hover {
    background: var(--color-surface);
    padding-left: 20px;
    padding-right: 8px;
    box-shadow: var(--shadow-xs);
  }
  .related-item:hover .related-arrow {
    transform: translateX(4px);
  }
  .related-date {
    font-size: 13px;
    color: var(--color-text-secondary);
    min-width: 72px;
    flex-shrink: 0;
  }
  .related-title {
    flex: 1;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.5;
  }
  .related-item:hover .related-title {
    color: var(--color-primary);
  }
  .related-arrow {
    color: var(--color-primary);
    font-size: 18px;
    transition: transform var(--transition);
    flex-shrink: 0;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--color-primary-dark);
    color: #A8B7C4;
    padding: 64px 0 32px;
  }
  .site-footer .brand-text {
    color: #fff;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.9fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
  }
  .footer-brand .brand {
    margin-bottom: 16px;
  }
  .footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #A8B7C4;
    max-width: 300px;
  }
  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
  }
  .footer-links {
    list-style: none;
    display: grid;
    gap: 10px;
  }
  .footer-links a {
    font-size: 14px;
    color: #A8B7C4;
    text-decoration: none;
    transition: color var(--transition);
  }
  .footer-links a:hover {
    color: var(--color-accent);
  }
  .footer-contact {
    display: grid;
    gap: 10px;
    font-size: 14px;
    line-height: 1.6;
  }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
  }

  /* ===== Modal ===== */
  .modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  .modal.open {
    opacity: 1;
    visibility: visible;
  }
  .modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(31, 42, 55, 0.6);
  }
  .modal-dialog {
    position: relative;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 480px;
    width: 100%;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    transform: translateY(16px);
    transition: transform 0.3s ease;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
  }
  .modal.open .modal-dialog {
    transform: translateY(0);
  }
  .modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    font-size: 20px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
  }
  .modal-close:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
  }
  .modal-dialog h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
  }
  .modal-subtitle {
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
  }
  .form-group {
    margin-bottom: 18px;
  }
  .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
  }
  .form-group label span {
    font-weight: 400;
    color: var(--color-text-secondary);
  }
  .form-group textarea {
    resize: vertical;
    min-height: 80px;
  }
  .form-consent {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin: 18px 0;
    cursor: pointer;
  }
  .form-consent input {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 3px;
    accent-color: var(--color-primary);
  }
  .form-consent span {
    font-size: 13px;
    line-height: 1.5;
    color: var(--color-text-secondary);
  }
  .modal .privacy-note {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 12px;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-top: 16px;
  }
  .modal .privacy-note svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    color: var(--color-accent);
  }

  /* ===== Responsive: Tablet ===== */
  @media (max-width: 1023px) {
    :root {
      --space-section: 64px;
    }
    .header-inner {
      height: auto;
      flex-wrap: wrap;
      padding: 14px 16px;
      gap: 10px;
    }
    .site-nav {
      order: 3;
      width: 100%;
      margin: 0;
      overflow-x: auto;
      padding-bottom: 6px;
      scrollbar-width: none;
    }
    .site-nav::-webkit-scrollbar {
      display: none;
    }
    .chip {
      flex-shrink: 0;
    }
    .header-cta {
      margin-left: auto;
    }
    .category-hero-inner,
    .split-grid,
    .audience-grid {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .category-hero-visual {
      max-width: 520px;
    }
    .faq-layout {
      grid-template-columns: 1fr;
      gap: 40px;
    }
    .dimension-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .process-steps {
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }
    .process-step::after {
      display: none;
    }
    .cta-inner {
      flex-direction: column;
      align-items: flex-start;
      gap: 24px;
    }
    .footer-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 32px;
    }
  }

  /* ===== Responsive: Mobile ===== */
  @media (max-width: 767px) {
    :root {
      --space-section: 48px;
    }
    .container {
      padding-left: 16px;
      padding-right: 16px;
    }
    .header-inner {
      padding: 10px 16px;
      gap: 8px;
    }
    .brand-mark {
      width: 34px;
      height: 34px;
      font-size: 17px;
    }
    .brand-text {
      font-size: 16px;
    }
    .header-cta {
      padding: 10px 16px;
      font-size: 13px;
      min-height: 44px;
    }
    .chip {
      padding: 8px 16px;
      font-size: 13px;
      min-height: 40px;
    }
    .category-hero {
      padding: 48px 0 56px;
    }
    .category-hero h1 {
      font-size: 32px;
      line-height: 1.25;
    }
    .category-hero .hero-sub {
      font-size: 15px;
      line-height: 1.75;
    }
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-actions .btn {
      width: 100%;
    }
    .hero-badges {
      flex-wrap: wrap;
    }
    .badge-round {
      font-size: 12px;
      padding: 6px 12px;
    }
    .hero-panel {
      grid-template-columns: 1fr;
    }
    .panel-card:first-child,
    .panel-card:last-child {
      transform: none;
    }
    .split-section,
    .dimensions-section,
    .audience-section,
    .process-section,
    .faq-section,
    .related-section {
      padding: var(--space-section) 0;
    }
    .section-head {
      margin-bottom: 36px;
    }
    .dimension-grid {
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .audience-list {
      grid-template-columns: 1fr;
      gap: 12px;
    }
    .process-steps {
      grid-template-columns: 1fr;
    }
    .cta-banner {
      padding: 48px 0 32px;
    }
    .cta-inner .btn {
      width: 100%;
    }
    .related-item {
      flex-wrap: wrap;
      gap: 10px;
      padding: 16px 8px;
    }
    .related-date {
      min-width: 60px;
      font-size: 12px;
    }
    .related-title {
      font-size: 15px;
      min-width: calc(100% - 80px);
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .footer-bottom {
      flex-direction: column;
      text-align: center;
    }
    .modal {
      padding: 12px;
    }
    .modal-dialog {
      padding: 28px 20px;
      max-height: calc(100vh - 24px);
      border-radius: var(--radius-md);
    }
    .modal-close {
      top: 10px;
      right: 10px;
    }
  }

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

/* roulang page: category3 */
:root {
  --color-primary: #2F4156;
  --color-primary-hover: #253546;
  --color-primary-dark: #1E2B3A;
  --color-primary-light: #E8EEF4;
  --color-accent: #C4A276;
  --color-accent-light: #F7F1E6;
  --color-bg: #F5F7FA;
  --color-surface: #FFFFFF;
  --color-text: #1F2A37;
  --color-text-secondary: #667085;
  --color-border: #E4E7EC;
  --color-success: #2E7D5B;
  --shadow-xs: 0 1px 2px rgba(31, 42, 55, 0.05);
  --shadow-md: 0 6px 24px rgba(31, 42, 55, 0.08);
  --shadow-lg: 0 16px 40px rgba(31, 42, 55, 0.12);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --container: 1200px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul,
ol {
  list-style: none;
}

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  min-height: 44px;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--color-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.btn-outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--color-accent);
  color: #FFFFFF;
}

.btn-gold:hover {
  background: #B08D5E;
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 72px;
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-primary);
  color: var(--color-accent);
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

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

.chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  min-height: 40px;
  white-space: nowrap;
}

.chip:hover {
  background: var(--color-primary-light);
  border-color: rgba(47, 65, 86, 0.3);
  color: var(--color-primary);
}

.chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

.header-cta {
  flex-shrink: 0;
  padding: 10px 24px;
  font-size: 14px;
}

/* ===== 分类横幅 ===== */
.page-banner {
  background: var(--color-primary-light) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  position: relative;
  padding: 96px 0 88px;
  overflow: hidden;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(232, 238, 244, 0.92) 55%, rgba(255, 255, 255, 0.72));
}

.page-banner-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.banner-tag {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.page-banner h1 {
  font-size: clamp(32px, 4.2vw, 44px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 16px;
}

.banner-sub {
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 680px;
  margin: 0 auto 32px;
}

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

/* ===== 图文区块 ===== */
.split-section {
  padding: 96px 0;
  background: var(--color-surface);
}

.split-section:nth-of-type(even) {
  background: var(--color-bg);
}

.split-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split-section.reverse .split-inner {
  grid-template-columns: 1fr 1fr;
}

.split-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
  background: var(--color-primary-light);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

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

.split-content {
  padding: 8px 0;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 18px;
}

.split-content h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 20px;
}

.split-content p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

.check-list li::before {
  content: '✓';
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent-light);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 700;
  margin-top: 2px;
}

.mini-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}

.mini-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition), transform var(--transition);
}

.mini-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.mini-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.mini-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin: 0;
}

/* ===== 相关链接模块 ===== */
.link-block {
  padding: 96px 0;
  background: var(--color-primary-dark);
  position: relative;
  overflow: hidden;
}

.link-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.06;
  pointer-events: none;
}

.link-block .container {
  position: relative;
  z-index: 1;
}

.block-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.block-head h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.3;
}

.block-head .btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  transition: gap var(--transition);
  min-height: 44px;
}

.block-head .btn-link:hover {
  color: #E3C79A;
  gap: 10px;
}

.link-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 40px;
}

.link-list li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: border-color var(--transition);
}

.link-list li:hover {
  border-color: var(--color-accent);
}

.link-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  color: #B8C4D0;
  font-size: 15px;
  line-height: 1.5;
  transition: color var(--transition);
  min-height: 44px;
}

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

.link-list .link-arrow {
  flex-shrink: 0;
  font-size: 18px;
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-6px);
  transition: all var(--transition);
}

.link-list li:hover .link-arrow {
  opacity: 1;
  transform: translateX(0);
}

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

.faq-inner {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 56px;
}

.faq-left h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.faq-left p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
}

.faq-list {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 8px 32px;
}

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

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 22px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  min-height: 44px;
  transition: color var(--transition);
}

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

.faq-question .faq-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-item.active .faq-question {
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-answer-inner {
  padding: 0 32px 20px 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-secondary);
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-item.active .faq-answer-inner {
  padding-bottom: 20px;
}

/* ===== CTA 横幅 ===== */
.cta-banner {
  padding: 80px 0;
  background: var(--color-surface) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position: relative;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.92);
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.cta-text {
  flex: 1;
  min-width: 280px;
}

.cta-text h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.cta-text p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 560px;
}

.cta-inner .btn {
  flex-shrink: 0;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: #A8B7C4;
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .brand {
  margin-bottom: 16px;
}

.footer-brand .brand-text {
  color: #FFFFFF;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.75;
  color: #A8B7C4;
  max-width: 320px;
}

.footer-title {
  font-size: 16px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #A8B7C4;
  transition: color var(--transition);
  min-height: 36px;
}

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

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: #A8B7C4;
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 24px;
  font-size: 13px;
  color: #7D8B9A;
}

/* ===== 模态框 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31, 42, 55, 0.6);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.show {
  display: flex;
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  padding: 40px 36px 32px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 22px;
  color: var(--color-text-secondary);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.modal-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.modal-intro {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.modal-form .form-group {
  margin-bottom: 16px;
}

.modal-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.modal-form input[type="text"],
.modal-form input[type="tel"],
.modal-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.modal-form textarea {
  resize: vertical;
  min-height: 80px;
}

.modal-form input:focus,
.modal-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47, 65, 86, 0.12);
}

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 16px 0;
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  margin-top: 2px;
  flex-shrink: 0;
}

.form-check label {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0;
  font-weight: 400;
}

.modal-form .btn {
  width: 100%;
  margin-top: 8px;
}

.privacy-line {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 14px;
  font-size: 12px;
  color: #98A2B3;
  line-height: 1.5;
}

.privacy-line svg {
  flex-shrink: 0;
  width: 14px;
  height: 14px;
  margin-top: 2px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.8;
}

/* ===== 焦点可见性 ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) and (min-width: 768px) {
  .header-inner {
    gap: 12px;
  }
  .brand-text {
    font-size: 16px;
  }
  .chip {
    padding: 8px 14px;
    font-size: 13px;
  }
  .header-cta {
    padding: 10px 16px;
    font-size: 13px;
  }
  .split-inner {
    gap: 32px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .faq-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .header-inner {
    height: 60px;
    flex-wrap: wrap;
  }
  .brand-text {
    font-size: 16px;
  }
  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  .site-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 8px;
    gap: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .site-nav::-webkit-scrollbar {
    display: none;
  }
  .chip {
    flex-shrink: 0;
    padding: 8px 16px;
    font-size: 13px;
  }
  .header-cta {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 40px;
  }

  .page-banner {
    padding: 56px 0 48px;
  }
  .page-banner h1 {
    font-size: 30px;
  }
  .banner-sub {
    font-size: 15px;
  }
  .banner-actions {
    flex-direction: column;
    align-items: center;
  }
  .banner-actions .btn {
    width: 100%;
    max-width: 360px;
  }

  .split-section {
    padding: 48px 0;
  }
  .split-inner,
  .split-section.reverse .split-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .split-media {
    order: -1;
  }
  .split-section.reverse .split-media {
    order: 0;
  }
  .split-content {
    padding: 0;
  }

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

  .link-block {
    padding: 48px 0;
  }
  .block-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .link-list {
    grid-template-columns: 1fr;
  }

  .faq-section {
    padding: 48px 0;
  }
  .faq-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .faq-list {
    padding: 8px 20px;
  }

  .cta-banner {
    padding: 48px 0;
  }
  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    padding: 48px 0 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .modal-content {
    padding: 32px 24px 24px;
  }
}

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