/* roulang page: index */
:root{
  --primary:#7A4E2D;
  --primary-dark:#5C3A1E;
  --primary-light:#9A6A3F;
  --accent:#C9A96E;
  --accent-light:#E5D5B8;
  --bg:#F7F3ED;
  --bg-alt:#F0EAE0;
  --dark-bg:#1F1710;
  --text:#2D2418;
  --text-light:#6B5D4E;
  --border:#E5DCCF;
  --white:#FFFFFF;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(45,36,24,.08);
  --shadow-lg:0 16px 48px rgba(45,36,24,.14);
  --transition:all .3s ease;
  --font-body:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none;margin:0;padding:0}
button,input,select,textarea{font-family:inherit}
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px}
.grid-x>.cell{padding-left:0;padding-right:0}
.grid-margin-x>.cell{margin-left:10px;margin-right:10px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:2px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  letter-spacing:.02em;
  text-align:center;
  line-height:1.4;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.12)}
.btn:focus-visible{outline:3px solid rgba(201,169,110,.5);outline-offset:2px}
.btn-primary{
  background:var(--primary);
  color:#fff !important;
  border-color:var(--primary);
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn-light{
  background:#fff;
  color:var(--primary-dark) !important;
  border-color:#fff;
}
.btn-light:hover{background:var(--accent-light);border-color:var(--accent-light)}
.btn-outline{
  background:transparent;
  color:var(--text) !important;
  border-color:var(--primary);
}
.btn-outline:hover{background:var(--primary);color:#fff !important}
.btn-outline-light{
  background:transparent;
  color:#fff !important;
  border-color:rgba(255,255,255,.7);
}
.btn-outline-light:hover{background:rgba(255,255,255,.15);border-color:#fff}
.btn-lg{padding:16px 42px;font-size:16px}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-block{width:100%}

/* ===== Section Head ===== */
.section{padding:90px 0}
.section-alt{background:var(--bg-alt)}
.section-dark{background:var(--dark-bg);color:#fff}
.section-head{
  max-width:720px;
  margin:0 auto 56px;
  text-align:center;
}
.section-head.text-left{margin-left:0;text-align:left}
.section-tag{
  display:inline-block;
  background:var(--accent-light);
  color:var(--primary-dark);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  padding:5px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.section-head h2{
  font-size:34px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  margin-bottom:16px;
  color:var(--text);
}
.section-head p{
  font-size:15px;
  color:var(--text-light);
  line-height:1.8;
}
.section-dark .section-head h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.7)}

/* ===== Header & Nav ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 20px rgba(0,0,0,.04);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:74px;
  gap:20px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-icon{
  width:42px;
  height:42px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary-dark),var(--primary));
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 4px 14px rgba(90,60,30,.25);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;
  font-size:11px;
  color:var(--text-light);
  letter-spacing:.1em;
  white-space:nowrap;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  padding:9px 20px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-link:hover{background:var(--bg-alt);color:var(--primary)}
.nav-link.active{
  background:var(--primary);
  color:#fff;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  font-size:22px;
  color:var(--text);
  cursor:pointer;
  padding:8px;
  border-radius:8px;
}
.nav-toggle:hover{background:var(--bg-alt)}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:
    linear-gradient(135deg,rgba(31,23,16,.94),rgba(74,50,30,.86)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;
  padding:110px 0 70px;
  overflow:hidden;
}
.hero-inner{max-width:860px}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  padding:6px 18px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--accent-light);
  margin-bottom:24px;
}
.hero h1{
  font-size:42px;
  font-weight:800;
  line-height:1.25;
  margin-bottom:20px;
  letter-spacing:-.01em;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-desc{
  font-size:16px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:660px;
  margin-bottom:34px;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:44px;
}
.hero-benefits-row{
  display:flex;
  align-items:stretch;
  gap:16px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:32px;
}
.hero-badge-card{
  flex:1;
  min-width:170px;
  display:flex;
  align-items:center;
  gap:14px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius);
  padding:18px 20px;
  transition:var(--transition);
}
.hero-badge-card:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}
.hero-badge-card i{font-size:22px;color:var(--accent)}
.hero-badge-card strong{display:block;font-size:15px;font-weight:600}
.hero-badge-card span{font-size:12.5px;color:rgba(255,255,255,.68)}
.hero-qualification-note{
  flex:1.4;
  min-width:260px;
  display:flex;
  align-items:center;
  gap:12px;
  background:rgba(0,0,0,.22);
  border:1px dashed rgba(255,255,255,.32);
  border-radius:var(--radius);
  padding:18px 20px;
}
.hero-qualification-note i{font-size:20px;color:var(--accent)}
.hero-qualification-note p{
  font-size:13px;
  color:rgba(255,255,255,.75);
  line-height:1.6;
}

/* ===== Stats Bar ===== */
.stats-bar{
  background:var(--primary-dark);
  color:#fff;
  padding:54px 0;
}
.stat-item{
  text-align:center;
  padding:10px;
}
.stat-item strong{
  display:block;
  font-size:38px;
  font-weight:800;
  font-family:Georgia,serif;
  color:var(--accent);
  margin-bottom:6px;
  letter-spacing:.02em;
}
.stat-item span{
  font-size:14px;
  color:rgba(255,255,255,.75);
  letter-spacing:.04em;
}

/* ===== Benefits ===== */
.benefit-grid .cell{margin-bottom:24px}
.benefit-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:34px 26px;
  height:100%;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.benefit-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .4s ease;
}
.benefit-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.benefit-card:hover::before{transform:scaleX(1)}
.benefit-icon{
  width:56px;
  height:56px;
  border-radius:16px;
  background:linear-gradient(135deg,var(--accent-light),var(--bg-alt));
  color:var(--primary-dark);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  margin-bottom:20px;
}
.benefit-card h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:10px;
  color:var(--text);
}
.benefit-card p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.75;
}

/* ===== Qualification ===== */
.qualification-section{background:var(--white)}
.qualification-section .grid-x{align-items:center}
.qualification-img-wrap{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.qualification-img-wrap img{
  width:100%;
  height:460px;
  object-fit:cover;
  border-radius:var(--radius);
}
.qualification-img-wrap::after{
  content:'环境实拍 · 到店核验';
  position:absolute;
  left:16px;
  bottom:16px;
  background:rgba(31,23,16,.82);
  color:#fff;
  font-size:13px;
  padding:8px 16px;
  border-radius:999px;
  backdrop-filter:blur(8px);
}
.qualification-list{margin-top:10px}
.qualification-list li{
  display:flex;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--border);
}
.qualification-list li:last-child{border-bottom:none}
.qualification-list i{
  width:44px;
  height:44px;
  flex-shrink:0;
  background:var(--bg-alt);
  border-radius:12px;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
}
.qualification-list strong{
  display:block;
  font-size:16px;
  font-weight:600;
  margin-bottom:4px;
}
.qualification-list span{
  font-size:14px;
  color:var(--text-light);
  line-height:1.7;
}

/* ===== Guide ===== */
.guide-section{
  background:
    linear-gradient(rgba(247,243,237,.95),rgba(247,243,237,.95)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.guide-grid .cell{margin-bottom:24px}
.guide-step{
  background:var(--white);
  border-radius:var(--radius);
  padding:32px 26px;
  height:100%;
  border:1px solid var(--border);
  transition:var(--transition);
  position:relative;
}
.guide-step:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.step-num{
  display:inline-block;
  font-family:Georgia,serif;
  font-size:44px;
  font-weight:700;
  color:var(--accent);
  line-height:1;
  margin-bottom:20px;
  letter-spacing:.02em;
}
.guide-step h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:10px;
}
.guide-step p{
  font-size:14px;
  color:var(--text-light);
  line-height:1.75;
}

/* ===== Reviews ===== */
.reviews-section{background:var(--white)}
.rating-summary{
  text-align:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:40px 24px;
  height:100%;
}
.rating-score{
  font-size:60px;
  font-weight:800;
  color:var(--primary-dark);
  line-height:1;
  font-family:Georgia,serif;
}
.rating-score span{font-size:22px;color:var(--text-light)}
.rating-stars{
  color:#E8A33D;
  font-size:18px;
  margin:16px 0 8px;
  letter-spacing:4px;
}
.rating-summary p{font-size:13px;color:var(--text-light);margin-bottom:20px}
.review-card{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:26px;
  height:100%;
  transition:var(--transition);
  margin-bottom:20px;
}
.review-card:hover{box-shadow:var(--shadow)}
.review-card>p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text);
  margin-bottom:18px;
  min-height:60px;
}
.reviewer{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-light);
  border-top:1px solid var(--border);
  padding-top:14px;
}
.reviewer span:first-child{font-weight:600;color:var(--text)}
.review-tag{
  background:var(--accent-light);
  color:var(--primary-dark);
  border-radius:999px;
  padding:4px 12px;
  font-size:12px;
}

/* ===== News ===== */
.news-section{background:var(--bg-alt)}
.news-list{border:1px solid var(--border);border-radius:var(--radius);background:var(--white)}
.news-item{
  display:flex;
  align-items:center;
  gap:14px;
  padding:22px 26px;
  border-bottom:1px solid var(--border);
  transition:var(--transition);
}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:var(--bg)}
.news-cat{
  flex-shrink:0;
  background:var(--bg-alt);
  color:var(--primary-dark);
  font-size:12px;
  font-weight:600;
  padding:4px 12px;
  border-radius:999px;
  letter-spacing:.02em;
}
.news-item a{
  flex:1;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  line-height:1.6;
}
.news-item a:hover{color:var(--primary)}
.news-date{
  flex-shrink:0;
  font-size:12.5px;
  color:var(--text-light);
}
.news-sidebar{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px;
}
.news-sidebar h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:20px;
  padding-bottom:14px;
  border-bottom:2px solid var(--accent-light);
}
.news-sidebar li{
  margin-bottom:4px;
}
.news-sidebar a{
  display:block;
  padding:10px 0;
  font-size:14.5px;
  color:var(--text);
  border-bottom:1px solid var(--bg-alt);
}
.news-sidebar a:hover{color:var(--primary);padding-left:6px}
.news-sidebar .btn{margin-top:22px}

/* ===== Guarantee ===== */
.guarantee-section{background:var(--dark-bg);color:#fff}
.guarantee-card{
  text-align:center;
  padding:30px 20px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  height:100%;
  transition:var(--transition);
}
.guarantee-card:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
.guarantee-card i{
  font-size:30px;
  color:var(--accent);
  margin-bottom:16px;
  display:inline-block;
}
.guarantee-card h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:12px;
  color:#fff;
}
.guarantee-card p{
  font-size:13.5px;
  color:rgba(255,255,255,.65);
  line-height:1.7;
}

/* ===== FAQ ===== */
.faq-grid{
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 30px;
  margin-bottom:16px;
  transition:var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow);border-color:transparent}
.faq-item h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:10px;
  color:var(--text);
  display:flex;
  align-items:center;
  gap:12px;
}
.faq-item h3::before{
  content:'';
  width:6px;
  height:20px;
  border-radius:3px;
  background:var(--primary);
  flex-shrink:0;
}
.faq-item p{
  font-size:14.5px;
  color:var(--text-light);
  line-height:1.85;
  padding-left:18px;
}

/* ===== Apply / Form ===== */
.apply-section{
  background:
    linear-gradient(rgba(31,23,16,.92),rgba(31,23,16,.92)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color:#fff;
}
.apply-wrap{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;
  padding:54px;
}
.apply-info .section-tag{background:rgba(255,255,255,.14);color:var(--accent-light)}
.apply-info h2{
  font-size:32px;
  font-weight:700;
  margin-bottom:16px;
  color:#fff;
}
.apply-info>p{
  font-size:15px;
  color:rgba(255,255,255,.75);
  line-height:1.8;
  margin-bottom:28px;
}
.apply-info ul li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:8px 0;
  font-size:14.5px;
  color:rgba(255,255,255,.9);
}
.apply-info ul li i{color:var(--accent)}
.apply-form{
  background:var(--white);
  border-radius:var(--radius);
  padding:36px;
  box-shadow:var(--shadow-lg);
}
.form-row{
  margin-bottom:18px;
}
.form-row.two{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.form-field label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--text);
  margin-bottom:6px;
  letter-spacing:.02em;
}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;
  border:1.5px solid var(--border);
  border-radius:12px;
  padding:12px 16px;
  font-size:14.5px;
  color:var(--text);
  background:var(--bg);
  transition:var(--transition);
  outline:none;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(122,78,45,.1);
}
.form-field textarea{min-height:96px;resize:vertical}
.form-tip{
  font-size:12.5px;
  color:var(--text-light);
  text-align:center;
  margin-top:12px;
}

/* ===== Bottom CTA ===== */
.bottom-cta{
  background:var(--primary-dark);
  color:#fff;
  padding:64px 0;
  text-align:center;
}
.bottom-cta h2{
  font-size:30px;
  font-weight:700;
  margin-bottom:14px;
}
.bottom-cta p{
  font-size:15px;
  color:rgba(255,255,255,.75);
  margin-bottom:26px;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--dark-bg);
  color:rgba(255,255,255,.75);
  padding:64px 0 0;
  border-top:4px solid var(--primary);
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-name{
  font-size:19px;
  font-weight:700;
  color:#fff;
  margin-bottom:12px;
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.6);
}
.footer-links h3,
.footer-contact h3{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-links a{
  display:block;
  padding:6px 0;
  font-size:14px;
  color:rgba(255,255,255,.6);
}
.footer-links a:hover{color:var(--accent)}
.footer-contact p{
  font-size:14px;
  padding:6px 0;
  color:rgba(255,255,255,.6);
}
.footer-bottom{
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .hero h1{font-size:36px}
  .hero{padding:90px 0 60px}
  .section{padding:70px 0}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .header-inner{min-height:64px}
  .brand-text strong{font-size:14px}
  .brand-text em{font-size:10px}
  .brand-icon{width:36px;height:36px;font-size:16px}
  .main-nav{
    display:none;
    position:absolute;
    top:64px;
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    padding:16px 20px;
    border-bottom:1px solid var(--border);
    box-shadow:0 12px 32px rgba(0,0,0,.1);
    gap:8px;
  }
  .main-nav.open{display:flex}
  .nav-link{width:100%;padding:12px 20px;border-radius:10px}
  .header-actions .btn{display:none}
  .nav-toggle{display:block}
  .hero{padding:64px 0 48px}
  .hero h1{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-benefits-row{flex-direction:column}
  .section{padding:56px 0}
  .section-head h2{font-size:26px}
  .stats-bar{padding:40px 0}
  .stat-item strong{font-size:30px}
  .apply-wrap{padding:28px 20px}
  .form-row.two{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .qualification-img-wrap img{height:300px}
  .news-item{flex-wrap:wrap;padding:16px 18px;gap:8px}
  .news-item a{flex:1 1 100%}
}
@media(max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  .hero h1{font-size:24px}
  .hero-desc{font-size:14px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .apply-form{padding:24px 18px}
  .rating-score{font-size:50px}
  .rating-summary{padding:28px 16px}
}

/* roulang page: category1 */
:root {
  --primary: #1c3d2e;
  --primary-dark: #122a1e;
  --primary-light: #2b5c42;
  --accent: #c9a063;
  --accent-dark: #a8813f;
  --accent-light: #e5c996;
  --bg: #faf7f2;
  --bg-alt: #f2ede4;
  --bg-deep: #10241a;
  --text: #24342b;
  --text-light: #5f6f64;
  --border: #e3dbcd;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 10px 30px rgba(28, 61, 46, 0.08);
  --shadow-lg: 0 24px 60px rgba(28, 61, 46, 0.14);
  --transition: all 0.3s ease;
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.text-center { text-align: center; }
.accent-text { color: var(--accent-dark); }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 1rem; font-weight: 600; line-height: 1.4; transition: var(--transition); border: 1px solid transparent; }
.btn-primary { background: var(--accent); color: #1c2b22; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201, 160, 99, 0.4); }
.btn-outline { border-color: rgba(255,255,255,0.5); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-light { background: #fff; color: var(--primary-dark); }
.btn-light:hover { background: var(--accent); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,0.18); }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 20px; font-size: 0.9rem; }
.btn-block { width: 100%; }

/* 头部导航 */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid rgba(28,61,46,0.1); box-shadow: 0 2px 20px rgba(0,0,0,0.04); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.brand-logo { display: flex; align-items: center; gap: 12px; }
.brand-icon { width: 44px; height: 44px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.3rem; box-shadow: 0 4px 14px rgba(28,61,46,0.25); }
.brand-text strong { display: block; font-size: 1.05rem; color: var(--primary-dark); line-height: 1.3; }
.brand-text em { display: block; font-style: normal; font-size: 0.75rem; color: var(--text-light); letter-spacing: 2px; margin-top: 2px; }
.main-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; }
.nav-link { font-size: 0.95rem; font-weight: 500; color: var(--text-light); padding: 8px 0; position: relative; white-space: nowrap; }
.nav-link::after { content: ""; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background: var(--accent); transition: var(--transition); }
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.nav-link.active { color: var(--primary); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 8px; background: var(--primary); color: #fff; font-size: 1.1rem; align-items: center; justify-content: center; }

/* 页脚 */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,0.75); padding: 70px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr 0.8fr 1fr; gap: 50px; padding-bottom: 50px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .brand-name { color: #fff; font-size: 1.1rem; font-weight: 700; margin-bottom: 14px; }
.footer-brand p { font-size: 0.92rem; line-height: 1.9; color: rgba(255,255,255,0.6); max-width: 440px; }
.footer-links h3, .footer-contact h3 { color: #fff; font-size: 1rem; margin-bottom: 18px; font-weight: 600; }
.footer-links a { display: block; color: rgba(255,255,255,0.62); margin-bottom: 12px; font-size: 0.92rem; }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact p { font-size: 0.92rem; margin-bottom: 12px; color: rgba(255,255,255,0.62); }
.footer-bottom { padding: 26px 0; font-size: 0.85rem; color: rgba(255,255,255,0.45); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Hero 白皮书 */
.hero-white { position: relative; background: var(--bg-deep); color: #fff; padding: 90px 0 70px; overflow: hidden; }
.hero-white::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat; opacity: 0.22; }
.hero-white::after { content: ""; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(16,36,26,0.97) 0%, rgba(16,36,26,0.85) 45%, rgba(16,36,26,0.5) 100%); }
.hero-white .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; align-items: center; }
.hero-kicker { display: inline-flex; align-items: center; gap: 6px; background: rgba(201,160,99,0.15); border: 1px solid rgba(201,160,99,0.3); color: var(--accent-light); padding: 6px 16px; border-radius: 30px; font-size: 0.8rem; letter-spacing: 2px; margin-bottom: 22px; }
.hero-title { font-size: 2.6rem; font-weight: 800; line-height: 1.3; color: #fff; margin-bottom: 18px; }
.hero-title span { color: var(--accent); }
.hero-desc { font-size: 1.06rem; color: rgba(255,255,255,0.75); max-width: 560px; margin-bottom: 36px; line-height: 1.8; }
.hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-tags { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.hero-tags span { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: 8px; padding: 5px 14px; font-size: 0.78rem; color: rgba(255,255,255,0.7); }
.hero-card { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: var(--radius); backdrop-filter: blur(10px); overflow: hidden; box-shadow: 0 30px 60px rgba(0,0,0,0.3); }
.hero-card-img { height: 220px; background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat; }
.hero-card-body { padding: 26px; }
.hero-card-body h3 { color: #fff; font-size: 1.2rem; margin-bottom: 12px; }
.hero-card-body li { color: rgba(255,255,255,0.72); font-size: 0.9rem; padding-left: 20px; position: relative; margin-bottom: 9px; }
.hero-card-body li::before { content: "◆"; position: absolute; left: 0; top: 0; font-size: 0.65rem; color: var(--accent); }
.hero-card-btn { margin-top: 20px; }

/* 板块标题 */
.section-head { margin-bottom: 48px; }
.section-title { font-size: 2rem; font-weight: 700; color: var(--primary-dark); line-height: 1.35; }
.section-sub { font-size: 0.9rem; color: var(--accent-dark); letter-spacing: 2px; margin-bottom: 10px; font-weight: 600; }
.section-desc { margin-top: 14px; color: var(--text-light); font-size: 1rem; max-width: 680px; }

/* 白皮书模块：价值亮点 */
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.value-item { background: #fff; border-radius: var(--radius); padding: 34px 28px; box-shadow: var(--shadow); border: 1px solid var(--border); transition: var(--transition); position: relative; overflow: hidden; }
.value-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.value-icon { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.4rem; margin-bottom: 20px; }
.value-item h3 { font-size: 1.1rem; color: var(--primary-dark); margin-bottom: 10px; }
.value-item p { font-size: 0.92rem; color: var(--text-light); line-height: 1.7; }

/* 目录摘要区 */
.toc-section { background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; }
.toc-head { background: var(--primary); color: #fff; padding: 22px 30px; display: flex; align-items: center; gap: 12px; }
.toc-head i { color: var(--accent); font-size: 1.2rem; }
.toc-head h3 { font-size: 1.1rem; font-weight: 600; }
.toc-body { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.toc-col { padding: 24px; border-right: 1px solid var(--border); }
.toc-col:last-child { border-right: none; }
.toc-col h4 { font-size: 0.85rem; color: var(--accent-dark); letter-spacing: 1px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.toc-col li { font-size: 0.88rem; color: var(--text-light); padding: 6px 0; display: flex; gap: 8px; align-items: flex-start; }
.toc-col li i { color: var(--primary); font-size: 0.7rem; margin-top: 6px; }

/* 适用场景 */
.scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scene-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 20px; text-align: center; transition: var(--transition); }
.scene-card:hover { border-color: var(--accent); box-shadow: var(--shadow); transform: translateY(-4px); }
.scene-card i { font-size: 2rem; color: var(--accent-dark); margin-bottom: 16px; display: block; }
.scene-card h3 { font-size: 1rem; color: var(--primary-dark); margin-bottom: 8px; }
.scene-card p { font-size: 0.84rem; color: var(--text-light); line-height: 1.6; }

/* 流程 */
.steps-wrap { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; position: relative; }
.step-item { text-align: center; position: relative; padding: 0 8px; }
.step-dot { width: 56px; height: 56px; background: var(--primary); color: var(--accent); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 700; margin: 0 auto 16px; box-shadow: 0 0 0 6px rgba(28,61,46,0.1); position: relative; z-index: 2; }
.step-item::after { content: ""; position: absolute; top: 28px; left: calc(50% + 36px); width: calc(100% - 40px); height: 2px; background: var(--border); z-index: 1; }
.step-item:last-child::after { display: none; }
.step-item h3 { font-size: 0.96rem; color: var(--primary-dark); margin-bottom: 6px; }
.step-item p { font-size: 0.82rem; color: var(--text-light); }

/* FAQ */
.faq-wrap { max-width: 880px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: var(--transition); }
.faq-item summary { padding: 22px 28px; font-size: 1rem; font-weight: 600; color: var(--primary-dark); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; transition: var(--transition); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 0.8rem; color: var(--accent); transition: var(--transition); }
.faq-item[open] summary { color: var(--accent-dark); }
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-item .faq-body { padding: 0 28px 24px; color: var(--text-light); font-size: 0.94rem; line-height: 1.8; }

/* CTA 留资 */
.cta-section { background: var(--bg-deep); color: #fff; position: relative; overflow: hidden; padding: 90px 0; }
.cta-section::before { content: ""; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.webp') center/cover no-repeat; opacity: 0.16; }
.cta-section::after { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(16,36,26,0.98) 40%, rgba(16,36,26,0.82)); }
.cta-grid { display: grid; grid-template-columns: 1fr 0.9fr; gap: 60px; align-items: center; position: relative; z-index: 2; }
.cta-left h2 { font-size: 2.2rem; font-weight: 800; line-height: 1.35; margin-bottom: 18px; }
.cta-left h2 span { color: var(--accent); }
.cta-left p { color: rgba(255,255,255,0.78); font-size: 1.05rem; line-height: 1.8; margin-bottom: 30px; }
.cta-points { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 30px; }
.cta-points span { background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16); border-radius: 30px; padding: 6px 16px; font-size: 0.85rem; color: rgba(255,255,255,0.88); }
.cta-form { background: #fff; border-radius: var(--radius); padding: 36px; box-shadow: 0 30px 60px rgba(0,0,0,0.3); }
.cta-form h3 { color: var(--primary-dark); font-size: 1.3rem; margin-bottom: 6px; }
.cta-form .form-sub { color: var(--text-light); font-size: 0.88rem; margin-bottom: 26px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--primary-dark); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg); font-size: 0.92rem; color: var(--text); transition: var(--transition); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(201,160,99,0.15); }
.form-hint { font-size: 0.82rem; color: var(--text-light); margin-top: 14px; text-align: center; }

/* 数据条 */
.stat-bar { background: var(--primary); color: #fff; padding: 44px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item h3 { font-size: 2.2rem; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.stat-item p { font-size: 0.9rem; color: rgba(255,255,255,0.68); letter-spacing: 1px; }

/* 侧边图文区 */
.media-row { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.media-img { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.media-img img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
.media-body h2 { font-size: 1.8rem; color: var(--primary-dark); margin-bottom: 20px; line-height: 1.4; }
.media-body p { color: var(--text-light); margin-bottom: 16px; font-size: 0.98rem; line-height: 1.85; }
.media-list li { display: flex; gap: 12px; margin-bottom: 14px; font-size: 0.94rem; color: var(--text); }
.media-list i { color: var(--accent-dark); margin-top: 4px; font-size: 0.85rem; }

/* 响应式 */
@media screen and (max-width: 1024px) {
  .hero-grid, .cta-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-title { font-size: 2.3rem; }
  .media-row { grid-template-columns: 1fr; gap: 30px; }
  .steps-wrap { grid-template-columns: repeat(3, 1fr); }
  .step-item:nth-child(3)::after { display: none; }
  .step-item:nth-child(4)::after { display: none; }
  .toc-body { grid-template-columns: 1fr; }
  .toc-col { border-right: none; border-bottom: 1px solid var(--border); }
  .toc-col:last-child { border-bottom: none; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media screen and (max-width: 768px) {
  .section { padding: 60px 0; }
  .nav-toggle { display: flex; }
  .main-nav { position: fixed; top: 0; right: -320px; width: 280px; height: 100vh; background: #fff; flex-direction: column; align-items: flex-start; padding: 80px 30px 30px; gap: 0; box-shadow: -10px 0 40px rgba(0,0,0,0.1); transition: right 0.35s ease; z-index: 98; }
  .main-nav.open { right: 0; }
  .main-nav .nav-link { padding: 15px 0; font-size: 1rem; width: 100%; border-bottom: 1px solid var(--bg-alt); }
  .header-inner { flex-wrap: wrap; }
  .header-actions { margin-left: auto; }
  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .hero-title { font-size: 1.9rem; }
  .section-title { font-size: 1.6rem; }
  .steps-wrap { grid-template-columns: 1fr 1fr; }
  .step-item::after { display: none; }
  .value-grid { grid-template-columns: 1fr; }
  .scene-grid { grid-template-columns: 1fr; }
  .cta-form { padding: 28px; }
}

@media screen and (max-width: 520px) {
  .hero-title { font-size: 1.6rem; }
  .brand-text em { font-size: 0.68rem; letter-spacing: 1px; }
  .brand-icon { width: 38px; height: 38px; }
  .brand-text strong { font-size: 0.93rem; }
  .btn { padding: 10px 20px; font-size: 0.93rem; }
  .hero-actions .btn { width: 100%; }
  .steps-wrap { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}