/* ============================================
   泰州市Shineyah喜雅普拉提 官方网站样式
   ============================================ */
:root {
  --primary: #B8956A;
  --primary-light: #D4B896;
  --primary-dark: #8B6F4E;
  --accent: #E8D5C4;
  --accent-light: #F5EDE4;
  --text-dark: #2D2D2D;
  --text-body: #555;
  --text-light: #888;
  --bg-white: #FFF;
  --bg-light: #FAF8F6;
  --bg-warm: #F5F0EB;
  --border: #E8E0D8;
  --shadow: 0 2px 20px rgba(184,149,106,.1);
  --shadow-hover: 0 8px 30px rgba(184,149,106,.2);
  --radius: 8px;
  --radius-lg: 16px;
  --transition: all .3s ease;
  --max-width: 1200px;
  --nav-height: 72px;
}

*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  color: var(--text-body); background: var(--bg-white); line-height:1.7;
  -webkit-font-smoothing: antialiased;
}
a { color:var(--primary); text-decoration:none; transition:var(--transition); }
a:hover { color:var(--primary-dark); }
img { max-width:100%; height:auto; display:block; }
ul,ol { list-style:none; }

.container { width:100%; max-width:var(--max-width); margin:0 auto; padding:0 20px; }
.section { padding:80px 0; }
.section-alt { background:var(--bg-light); }
.section-warm { background:var(--bg-warm); }

/* === 标题 === */
.section-header { text-align:center; margin-bottom:50px; }
.section-header h2 {
  font-size:32px; color:var(--text-dark); font-weight:600; margin-bottom:12px;
  position:relative; display:inline-block;
}
.section-header h2::after {
  content:''; position:absolute; bottom:-8px; left:50%; transform:translateX(-50%);
  width:50px; height:3px; background:var(--primary); border-radius:2px;
}
.section-header p { color:var(--text-light); font-size:16px; margin-top:16px; }

/* === 按钮 === */
.btn {
  display:inline-block; padding:12px 32px; border:none; border-radius:var(--radius);
  font-size:15px; font-weight:500; cursor:pointer; transition:var(--transition);
  text-align:center; line-height:1.5;
}
.btn-primary { background:var(--primary); color:#fff; }
.btn-primary:hover { background:var(--primary-dark); color:#fff; transform:translateY(-2px); box-shadow:0 4px 15px rgba(184,149,106,.4); }
.btn-outline { background:transparent; color:var(--primary); border:2px solid var(--primary); }
.btn-outline:hover { background:var(--primary); color:#fff; }
.btn-white { background:rgba(255,255,255,.95); color:var(--primary-dark); font-weight:600; }
.btn-white:hover { background:#fff; transform:translateY(-2px); box-shadow:0 4px 15px rgba(0,0,0,.15); }
.btn-lg { padding:16px 40px; font-size:17px; border-radius:var(--radius-lg); }

/* === 导航栏 === */
.navbar {
  position:fixed; top:0; left:0; width:100%; height:var(--nav-height);
  background:rgba(255,255,255,.97); backdrop-filter:blur(10px);
  box-shadow:0 1px 10px rgba(0,0,0,.06); z-index:1000; transition:var(--transition);
}
.navbar.scrolled { box-shadow:0 2px 20px rgba(0,0,0,.1); }
.navbar .container { display:flex; align-items:center; justify-content:space-between; height:100%; }
.nav-logo {
  display:flex; align-items:center; gap:10px;
  font-size:18px; font-weight:700; color:var(--primary-dark);
}
.nav-logo .logo-icon {
  width:40px; height:40px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:16px; font-weight:700; flex-shrink:0;
}
.nav-logo span { max-width:220px; line-height:1.2; }
.nav-links { display:flex; align-items:center; gap:4px; }
.nav-links a {
  padding:8px 14px; color:var(--text-body); font-size:15px; font-weight:500;
  border-radius:var(--radius); transition:var(--transition);
}
.nav-links a:hover,.nav-links a.active { color:var(--primary); background:var(--accent-light); }

.nav-toggle {
  display:none; flex-direction:column; gap:5px; cursor:pointer; padding:5px; z-index:1001;
}
.nav-toggle span { width:24px; height:2px; background:var(--text-dark); border-radius:2px; transition:var(--transition); }
.nav-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.nav-toggle.active span:nth-child(2) { opacity:0; }
.nav-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* === Hero Banner === */
.hero-banner {
  position:relative; width:100%; height:calc(100vh - var(--nav-height));
  min-height:500px; max-height:800px; margin-top:var(--nav-height); overflow:hidden;
}
.hero-slides { position:relative; width:100%; height:100%; }
.hero-slide {
  position:absolute; top:0; left:0; width:100%; height:100%;
  opacity:0; transition:opacity .8s ease;
  display:flex; align-items:center; justify-content:center;
}
.hero-slide.active { opacity:1; z-index:1; }
.hero-slide-bg {
  position:absolute; top:0; left:0; width:100%; height:100%;
  background-size:cover; background-position:center; background-color:var(--accent);
}
.hero-slide-bg::after {
  content:''; position:absolute; top:0; left:0; width:100%; height:100%;
  background:linear-gradient(135deg,rgba(45,45,45,.55),rgba(184,149,106,.3));
}
.hero-content { position:relative; z-index:2; text-align:center; color:#fff; padding:0 20px; max-width:700px; }
.hero-content h1 { font-size:42px; font-weight:700; margin-bottom:16px; text-shadow:0 2px 10px rgba(0,0,0,.2); line-height:1.3; }
.hero-content .hero-subtitle { font-size:18px; margin-bottom:30px; opacity:.95; letter-spacing:2px; }
.hero-content .btn { margin:5px; }

.hero-dots {
  position:absolute; bottom:30px; left:50%; transform:translateX(-50%);
  display:flex; gap:10px; z-index:10;
}
.hero-dots .dot {
  width:12px; height:12px; border-radius:50%; background:rgba(255,255,255,.5);
  cursor:pointer; transition:var(--transition);
}
.hero-dots .dot.active { background:#fff; transform:scale(1.2); }

.hero-arrow {
  position:absolute; top:50%; transform:translateY(-50%); z-index:10;
  width:48px; height:48px; border-radius:50%; background:rgba(255,255,255,.2);
  border:2px solid rgba(255,255,255,.4); color:#fff; font-size:20px;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  transition:var(--transition);
}
.hero-arrow:hover { background:rgba(255,255,255,.4); }
.hero-arrow.prev { left:20px; }
.hero-arrow.next { right:20px; }

/* === 优势卡片 === */
.advantages-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.advantage-card {
  background:var(--bg-white); border-radius:var(--radius-lg);
  padding:36px 24px; text-align:center; box-shadow:var(--shadow); transition:var(--transition);
}
.advantage-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); }
.advantage-icon {
  width:64px; height:64px; margin:0 auto 18px; background:var(--accent-light);
  border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:28px;
}
.advantage-card h3 { font-size:18px; color:var(--text-dark); margin-bottom:10px; }
.advantage-card p { font-size:14px; color:var(--text-light); line-height:1.6; }

/* === 课程卡片 === */
.courses-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr)); gap:28px; }
.course-card {
  background:var(--bg-white); border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow); transition:var(--transition); cursor:pointer;
}
.course-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); }
.course-card-img {
  width:100%; height:200px; background:var(--bg-warm);
  background-size:cover; background-position:center; position:relative;
}
.course-card-img .course-duration {
  position:absolute; bottom:10px; right:10px; background:rgba(0,0,0,.6);
  color:#fff; padding:4px 12px; border-radius:20px; font-size:12px;
}
.course-card-body { padding:22px; }
.course-card-body h3 { font-size:18px; color:var(--text-dark); margin-bottom:8px; }
.course-card-body p {
  font-size:14px; color:var(--text-light); margin-bottom:12px;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.course-card-body .course-link { font-size:14px; color:var(--primary); font-weight:500; }

/* === 评价 === */
.testimonials-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; }
.testimonial-card {
  background:var(--bg-white); border-radius:var(--radius-lg); padding:28px;
  box-shadow:var(--shadow); transition:var(--transition);
}
.testimonial-card:hover { box-shadow:var(--shadow-hover); }
.testimonial-top { display:flex; align-items:center; gap:14px; margin-bottom:16px; }
.testimonial-avatar {
  width:48px; height:48px; border-radius:50%; background:var(--accent-light);
  display:flex; align-items:center; justify-content:center;
  font-size:18px; color:var(--primary); font-weight:600; flex-shrink:0; overflow:hidden;
}
.testimonial-avatar img { width:100%; height:100%; object-fit:cover; }
.testimonial-info .nickname { font-size:15px; font-weight:600; color:var(--text-dark); }
.testimonial-info .stars { color:#F0A500; font-size:13px; letter-spacing:2px; }
.testimonial-card .content {
  font-size:14px; color:var(--text-body); line-height:1.8;
  padding-left:16px; border-left:3px solid var(--accent);
}
/* 评价详情 */
.test-detail-info { padding:28px; }
.test-detail-top { display:flex; align-items:center; gap:14px; margin-bottom:8px; }
.test-detail-images img { display:block; }

/* === 教练卡片 === */
.coaches-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(320px,1fr)); gap:30px; }
.coach-card {
  background:var(--bg-white); border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow); transition:var(--transition);
}
.coach-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); }
.coach-avatar-wrap {
  width:100%; height:320px; background:var(--bg-warm);
  background-size:cover; background-position:center top; position:relative;
}
.coach-rating {
  position:absolute; top:12px; right:12px; background:rgba(255,255,255,.95);
  padding:4px 12px; border-radius:20px; font-size:13px; color:#F0A500; font-weight:600;
}
.coach-body { padding:24px; }
.coach-body h3 { font-size:20px; color:var(--text-dark); margin-bottom:4px; }
.coach-specialties { font-size:14px; color:var(--primary); margin-bottom:12px; }
.coach-tags { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:14px; }
.coach-tags .tag { background:var(--accent-light); color:var(--primary-dark); padding:3px 10px; border-radius:20px; font-size:12px; }
.coach-motto { font-size:14px; color:var(--text-light); font-style:italic; padding:12px 0; border-top:1px solid var(--border); }

/* === 案例卡片 === */
.cases-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:24px; }
.case-card {
  background:var(--bg-white); border-radius:var(--radius-lg); overflow:hidden;
  box-shadow:var(--shadow); transition:var(--transition); cursor:pointer;
}
.case-card:hover { transform:translateY(-6px); box-shadow:var(--shadow-hover); }
.case-cover {
  width:100%; height:220px; background:var(--bg-warm);
  background-size:cover; background-position:center; position:relative;
}
.case-category {
  position:absolute; top:12px; left:12px; background:var(--primary);
  color:#fff; padding:4px 14px; border-radius:20px; font-size:12px;
}
.case-body { padding:20px; }
.case-body h3 { font-size:17px; color:var(--text-dark); margin-bottom:8px; }
.case-body .case-desc {
  font-size:14px; color:var(--text-light);
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}

/* === 弹窗 === */
.modal-overlay {
  position:fixed; top:0; left:0; width:100%; height:100%;
  background:rgba(0,0,0,.6); z-index:2000; display:none;
  align-items:center; justify-content:center; padding:20px;
}
.modal-overlay.active { display:flex; }
.modal-content {
  background:var(--bg-white); border-radius:var(--radius-lg);
  max-width:800px; width:100%; max-height:85vh; overflow-y:auto; position:relative;
}
.modal-close {
  position:absolute; top:16px; right:16px; width:36px; height:36px;
  border-radius:50%; background:rgba(0,0,0,.1); border:none; font-size:20px;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  transition:var(--transition); z-index:10;
}
.modal-close:hover { background:rgba(0,0,0,.2); }
.case-detail-images { display:flex; overflow-x:auto; gap:0; scroll-snap-type:x mandatory; -webkit-overflow-scrolling:touch; scrollbar-width:none; }
.case-detail-images::-webkit-scrollbar { display:none; }
.case-detail-images img { min-width:100%; height:350px; object-fit:cover; scroll-snap-align:start; }

/* 滑动箭头和提示 */
.case-images-wrapper { position:relative; overflow:hidden; }
.slide-arrow {
  position:absolute; top:50%; transform:translateY(-50%); z-index:10;
  width:40px; height:40px; border-radius:50%;
  background:rgba(0,0,0,.35); border:none; color:#fff; font-size:18px;
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  transition:var(--transition);
}
.slide-arrow:hover { background:rgba(0,0,0,.6); }
.slide-arrow.slide-prev { left:12px; }
.slide-arrow.slide-next { right:12px; }
.slide-hint {
  position:absolute; bottom:12px; left:50%; transform:translateX(-50%);
  background:rgba(0,0,0,.45); color:#fff; padding:4px 16px; border-radius:20px;
  font-size:12px; pointer-events:none; animation:slideHintFade 3s ease forwards;
}
@keyframes slideHintFade { 0%,70%{opacity:1} 100%{opacity:0} }
.case-detail-info { padding:28px; }
.case-detail-info h2 { font-size:24px; color:var(--text-dark); margin-bottom:6px; }
.case-detail-info .category-tag {
  display:inline-block; background:var(--accent-light); color:var(--primary-dark);
  padding:3px 12px; border-radius:20px; font-size:13px; margin-bottom:16px;
}
.case-detail-info .detail-section { margin-bottom:18px; }
.case-detail-info .detail-section h4 { font-size:15px; color:var(--text-dark); margin-bottom:6px; }
.case-detail-info .detail-section p { font-size:14px; color:var(--text-body); line-height:1.8; }

/* === 页面Banner === */
.page-banner {
  margin-top:var(--nav-height); height:280px;
  background:linear-gradient(135deg,var(--primary-dark),var(--primary-light));
  display:flex; align-items:center; justify-content:center; text-align:center;
  color:#fff; position:relative; overflow:hidden;
}
.page-banner::before {
  content:''; position:absolute; width:300px; height:300px; border-radius:50%;
  background:rgba(255,255,255,.05); top:-100px; right:-50px;
}
.page-banner::after {
  content:''; position:absolute; width:200px; height:200px; border-radius:50%;
  background:rgba(255,255,255,.05); bottom:-50px; left:-30px;
}
.page-banner h1 { font-size:36px; font-weight:700; position:relative; z-index:1; }
.page-banner p { font-size:16px; opacity:.9; margin-top:8px; position:relative; z-index:1; }

/* === 场馆介绍 === */
.studio-content { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start; }
.studio-text h3 { font-size:22px; color:var(--text-dark); margin-bottom:14px; margin-top:28px; }
.studio-text h3:first-child { margin-top:0; }
.studio-text p { font-size:15px; color:var(--text-body); line-height:1.9; margin-bottom:12px; }
.studio-image { border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow); }
.studio-image img { width:100%; height:400px; object-fit:cover; }
.studio-features { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; margin-top:20px; }
.studio-feature {
  display:flex; align-items:center; gap:10px; padding:12px 16px;
  background:var(--accent-light); border-radius:var(--radius);
}
.studio-feature .feature-icon { font-size:20px; }
.studio-feature span { font-size:14px; color:var(--text-dark); }

/* 场馆相册 */
.studio-gallery-section { margin-top:10px; }
.studio-gallery-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; }
.gallery-thumb { width:100%; padding-top:66%; background-size:cover; background-position:center; border-radius:var(--radius); cursor:pointer; transition:var(--transition); }
.gallery-thumb:hover { transform:scale(1.03); box-shadow:var(--shadow-hover); }
.gallery-modal-inner img { display:block; }

/* === 课程详情 === */
.course-detail-card {
  background:var(--bg-white); border-radius:var(--radius-lg); padding:36px;
  box-shadow:var(--shadow); margin-bottom:28px;
}
.course-detail-card h3 {
  font-size:22px; color:var(--text-dark); margin-bottom:16px;
  padding-bottom:12px; border-bottom:2px solid var(--accent);
}
.course-detail-card .course-img {
  width:100%; height:300px; object-fit:cover; border-radius:var(--radius);
  margin-bottom:20px; background:var(--bg-warm);
}
.course-detail-card li { padding:8px 0 8px 24px; position:relative; font-size:15px; color:var(--text-body); }
.course-detail-card li::before { content:'✓'; position:absolute; left:0; color:var(--primary); font-weight:700; }
.course-meta { display:flex; flex-wrap:wrap; gap:12px; margin:16px 0; }
.course-meta .meta-item { background:var(--accent-light); padding:6px 16px; border-radius:20px; font-size:13px; color:var(--primary-dark); }
.course-process { display:flex; align-items:center; gap:8px; flex-wrap:wrap; margin-top:16px; }
.course-process .step { background:var(--primary); color:#fff; padding:8px 18px; border-radius:20px; font-size:13px; }
.course-process .arrow { color:var(--primary); font-size:16px; }

/* === 联系我们 === */
.contact-grid { display:grid; grid-template-columns:1fr 1fr; gap:40px; }
.contact-info-card {
  background:var(--bg-white); border-radius:var(--radius-lg); padding:30px; box-shadow:var(--shadow);
}
.contact-item { display:flex; gap:16px; margin-bottom:24px; align-items:flex-start; }
.contact-item:last-child { margin-bottom:0; }
.contact-icon {
  width:48px; height:48px; background:var(--accent-light); border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-size:22px; flex-shrink:0;
}
.contact-item h4 { font-size:15px; color:var(--text-dark); margin-bottom:4px; }
.contact-item p { font-size:14px; color:var(--text-body); }
.contact-item .qr-img { width:120px; height:120px; margin-top:8px; border-radius:var(--radius); background:var(--bg-warm); overflow:hidden; }
.contact-item .qr-img img { width:100%; height:100%; object-fit:contain; }
.contact-map { border-radius:var(--radius-lg); overflow:hidden; box-shadow:var(--shadow); min-height:400px; }
.contact-map iframe { width:100%; height:100%; min-height:400px; border:none; }

/* === Footer === */
.site-footer { background:var(--text-dark); color:rgba(255,255,255,.7); padding:60px 0 0; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; }
.footer-brand h3 { color:#fff; font-size:20px; margin-bottom:12px; }
.footer-brand p { font-size:14px; line-height:1.8; }
.footer-col h4 { color:#fff; font-size:16px; margin-bottom:16px; }
.footer-col a { display:block; color:rgba(255,255,255,.6); font-size:14px; padding:4px 0; transition:var(--transition); }
.footer-col a:hover { color:var(--primary-light); }
.footer-bottom { margin-top:40px; padding:20px 0; border-top:1px solid rgba(255,255,255,.1); text-align:center; font-size:13px; color:rgba(255,255,255,.4); }

/* === 客服浮窗 === */
.float-service { position:fixed; bottom:30px; right:30px; z-index:999; }
.float-service-btn {
  width:56px; height:56px; border-radius:50%; background:var(--primary); color:#fff;
  border:none; font-size:24px; cursor:pointer;
  box-shadow:0 4px 15px rgba(184,149,106,.4);
  display:flex; align-items:center; justify-content:center; transition:var(--transition);
}
.float-service-btn:hover { transform:scale(1.1); box-shadow:0 6px 20px rgba(184,149,106,.5); }
.float-service-panel {
  position:absolute; bottom:70px; right:0; width:260px; background:#fff;
  border-radius:var(--radius-lg); box-shadow:0 8px 30px rgba(0,0,0,.15);
  padding:24px; text-align:center; display:none;
}
.float-service-panel.active { display:block; }
.float-service-panel h4 { font-size:16px; color:var(--text-dark); margin-bottom:12px; }
.float-service-panel .qr-placeholder {
  width:160px; height:160px; margin:0 auto 12px; background:var(--bg-warm);
  border-radius:var(--radius); display:flex; align-items:center; justify-content:center;
  color:var(--text-light); font-size:13px; overflow:hidden;
}
.float-service-panel .qr-placeholder img { width:100%; height:100%; object-fit:contain; }
.float-service-panel p { font-size:13px; color:var(--text-light); }

/* === 回到顶部 === */
.back-to-top {
  position:fixed; bottom:30px; right:100px; width:44px; height:44px;
  border-radius:50%; background:var(--bg-white); border:1px solid var(--border);
  color:var(--text-light); font-size:18px; cursor:pointer;
  display:none; align-items:center; justify-content:center;
  transition:var(--transition); z-index:999; box-shadow:0 2px 10px rgba(0,0,0,.08);
}
.back-to-top.visible { display:flex; }
.back-to-top:hover { background:var(--primary); color:#fff; border-color:var(--primary); }

/* === 响应式 - 平板 === */
@media (max-width:1024px) {
  .advantages-grid { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; gap:30px; }
  .studio-content { grid-template-columns:1fr; }
  .studio-image { order:-1; }
  .studio-image img { height:300px; }
  .contact-grid { grid-template-columns:1fr; }
}

/* === 响应式 - 手机 === */
@media (max-width:768px) {
  :root { --nav-height:60px; }
  .nav-links {
    position:fixed; top:0; right:-100%; width:260px; height:100vh;
    background:#fff; flex-direction:column; padding:80px 24px 30px;
    box-shadow:-5px 0 20px rgba(0,0,0,.1); transition:right .3s ease; gap:0;
  }
  .nav-links.open { right:0; }
  .nav-links a { padding:14px 16px; width:100%; border-bottom:1px solid var(--border); }
  .nav-toggle { display:flex; }
  .section { padding:50px 0; }
  .section-header h2 { font-size:24px; }
  .hero-banner { height:70vh; min-height:400px; max-height:600px; }
  .hero-content h1 { font-size:26px; }
  .hero-content .hero-subtitle { font-size:14px; }
  .hero-arrow { display:none; }
  .advantages-grid { grid-template-columns:1fr 1fr; gap:14px; }
  .advantage-card { padding:24px 16px; }
  .advantage-icon { width:50px; height:50px; font-size:22px; }
  .courses-grid,.testimonials-grid,.coaches-grid,.cases-grid { grid-template-columns:1fr; }
  .coach-avatar-wrap { height:280px; }
  .page-banner { height:200px; }
  .page-banner h1 { font-size:26px; }
  .studio-features { grid-template-columns:1fr; }
  .studio-gallery-grid { grid-template-columns:repeat(2,1fr); }
  .course-detail-card { padding:24px; }
  .course-detail-card .course-img { height:200px; }
  .course-process { flex-direction:column; align-items:flex-start; }
  .course-process .arrow { display:none; }
  .footer-grid { grid-template-columns:1fr; gap:24px; }
  .float-service { bottom:20px; right:20px; }
  .back-to-top { right:80px; bottom:20px; width:38px; height:38px; }
  .btn-lg { padding:14px 28px; font-size:15px; }
  .modal-content { max-height:90vh; border-radius:var(--radius); }
  .case-detail-images img { height:220px; }
  .case-detail-info { padding:20px; }
}

@media (max-width:480px) {
  .hero-content h1 { font-size:22px; }
  .advantages-grid { grid-template-columns:1fr; }
  .hero-content .btn { width:100%; margin:4px 0; }
}

/* === 加载 === */
.loading { display:flex; align-items:center; justify-content:center; padding:40px; }
.loading-spinner {
  width:36px; height:36px; border:3px solid var(--border);
  border-top-color:var(--primary); border-radius:50%; animation:spin .8s linear infinite;
}
@keyframes spin { to { transform:rotate(360deg); } }

/* === 图片占位 === */
.img-placeholder {
  width:100%; height:100%; background:linear-gradient(135deg,var(--accent-light),var(--bg-warm));
  display:flex; align-items:center; justify-content:center; color:var(--text-light); font-size:14px;
}

/* === 评价图片网格 === */
.testimonials-img-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
}
.test-img-card {
  border-radius:var(--radius); overflow:hidden; cursor:pointer;
  box-shadow:var(--shadow); transition:var(--transition);
  background:var(--bg-warm);
}
.test-img-card:hover { transform:scale(1.02); box-shadow:var(--shadow-hover); }
.test-img-card img { width:100%; height:200px; object-fit:cover; display:block; transition:var(--transition); }

/* === 案例瀑布流 === */
.cases-waterfall {
  columns:3; column-gap:12px;
}
.waterfall-item {
  break-inside:avoid; margin-bottom:12px; border-radius:var(--radius);
  overflow:hidden; cursor:pointer; box-shadow:var(--shadow); transition:var(--transition);
  background:var(--bg-warm);
}
.waterfall-item:hover { transform:scale(1.02); box-shadow:var(--shadow-hover); }
.waterfall-item img { width:100%; display:block; }

/* === 图片放大弹窗 === */
.img-modal-content {
  position:relative; max-width:90vw; max-height:90vh;
  display:flex; align-items:center; justify-content:center;
}
.img-modal-content img {
  max-width:90vw; max-height:85vh; object-fit:contain;
  border-radius:var(--radius); display:block;
}
.img-modal-arrow {
  position:absolute; top:50%; transform:translateY(-50%); z-index:10;
  width:44px; height:44px; border-radius:50%;
  background:rgba(255,255,255,.2); border:2px solid rgba(255,255,255,.4);
  color:#fff; font-size:20px; cursor:pointer;
  display:flex; align-items:center; justify-content:center; transition:var(--transition);
}
.img-modal-arrow:hover { background:rgba(255,255,255,.4); }
.img-modal-prev { left:-60px; }
.img-modal-next { right:-60px; }
.img-modal-count {
  position:absolute; bottom:-30px; left:50%; transform:translateX(-50%);
  color:rgba(255,255,255,.8); font-size:13px; white-space:nowrap;
}

/* 响应式 */
@media (max-width:768px) {
  .testimonials-img-grid { grid-template-columns:repeat(2,1fr); }
  .test-img-card img { height:140px; }
  .cases-waterfall { columns:2; }
  .img-modal-prev { left:-40px; }
  .img-modal-next { right:-40px; }
}
@media (max-width:480px) {
  .testimonials-img-grid { grid-template-columns:repeat(2,1fr); gap:8px; }
  .cases-waterfall { columns:2; column-gap:8px; }
  .img-modal-prev,.img-modal-next { width:34px; height:34px; font-size:15px; }
  .img-modal-prev { left:-20px; }
  .img-modal-next { right:-20px; }
}

/* === 手机端遮罩 === */
.nav-overlay {
  position:fixed; top:0; left:0; width:100%; height:100%;
  background:rgba(0,0,0,.4); z-index:999; display:none;
}
.nav-overlay.active { display:block; }