/* 膜影车匠 通用样式 */
:root {
  --color-black: #0f0f1a;
  --color-dark: #1a1a2e;
  --color-yellow: #F9BD00;
  --color-white: #ffffff;
  --color-bg: #f5f5f5;
  --color-text: #333;
  --color-text-light: #666;
  --color-border: #eee;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

* { margin:0; padding:0; box-sizing:border-box; }
/* Footer - 居底 */
html,body{height:100%}
body{display:flex;flex-direction:column;font-family:-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--color-text);background:var(--color-bg);line-height:1.6}
main{flex:1 0 auto;width:100%}
a{color:inherit;text-decoration:none}
img { max-width: 100%; display: block; }

/* Header */
.header { background: var(--color-dark); color: var(--color-white); padding: 0 20px; position: sticky; top: 0; z-index: 100; }
.header-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; height: 64px; gap: 40px; }
.logo-img { height: 36px; }
.nav { display: flex; gap: 24px; flex: 1; }
.nav a { font-size: 14px; color: rgba(255,255,255,.8); transition: color .2s; }
.nav a:hover { color: var(--color-yellow); }
.header-contact a { font-size: 14px; color: var(--color-yellow); display: flex; align-items: center; gap: 6px; }
.contact-icon { width: 18px; height: 18px; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; align-items: center; }
.menu-icon { width: 24px; height: 24px; }

/* Banner */
.banner { position: relative; height: 70vh; min-height: 400px; overflow: hidden; }
.banner-video { position: absolute; inset: 0; }
.banner-video video { width: 100%; height: 100%; object-fit: cover; }
.banner-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.5); display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--color-white); text-align: center; }
.banner-overlay h1 { font-size: 42px; margin-bottom: 12px; letter-spacing: 4px; }
.banner-overlay p { font-size: 18px; color: rgba(255,255,255,.8); margin-bottom: 24px; }

/* Buttons */
.btn-primary { display: inline-block; background: var(--color-yellow); color: var(--color-dark); padding: 12px 32px; border-radius: var(--radius-lg); font-size: 15px; font-weight: 600; border: none; cursor: pointer; transition: opacity .2s; }
.btn-primary:hover { opacity: .9; }

/* Sections */
.section { padding: 60px 20px; max-width: 1200px; margin: 0 auto; }
.section h2 { font-size: 28px; text-align: center; margin-bottom: 40px; color: var(--color-dark); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Cards */
.card { background: var(--color-white); border-radius: var(--radius-md); padding: 24px; text-align: center; box-shadow: 0 2px 12px rgba(0,0,0,.06); transition: transform .2s; }
.card:hover { transform: translateY(-4px); }
.card svg { width: 48px; height: 48px; margin-bottom: 16px; }
.card h3 { font-size: 18px; margin-bottom: 8px; color: var(--color-dark); }
.card p { font-size: 13px; color: var(--color-text-light); margin-bottom: 12px; }
.price { font-size: 16px; font-weight: 700; color: var(--color-yellow); }

/* Case cards */
.case-card { border-radius: var(--radius-md); overflow: hidden; background: var(--color-white); box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.case-card h3 { padding: 12px 16px 12px 0px; font-size: 14px; }

/* Staff cards */
.staff-card { text-align: center; background: var(--color-white); border-radius: var(--radius-md); padding: 24px; }
.staff-card img { width: 80px; height: 80px; border-radius: 50%; object-fit: cover; margin: 0 auto 12px; }
.staff-card h3 { font-size: 16px; }
.staff-card .title { font-size: 13px; color: var(--color-yellow); }

/* Advantages */
.advantage-card { text-align: center; padding: 24px; }
.advantage-card svg { width: 48px; height: 48px; margin-bottom: 12px; stroke: var(--color-yellow); }
.advantage-card h3 { font-size: 16px; margin-bottom: 8px; color: var(--color-dark); }
.advantage-card p { font-size: 13px; color: var(--color-text-light); }

/* Footer */
.footer { background: var(--color-dark); color: rgba(255,255,255,.6); padding: 48px 20px 20px; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 2fr; gap: 40px; }
.footer h4 { color: var(--color-yellow); margin-bottom: 16px; font-size: 16px; font-weight: 600; letter-spacing: 1px; }
.footer-slogan { font-size: 14px; color: rgba(255,255,255,.8); margin-bottom: 8px; }
.footer-desc { font-size: 12px; color: rgba(255,255,255,.35); line-height: 1.6; }
.footer a { color: rgba(255,255,255,.55); font-size: 13px; display: block; margin-bottom: 8px; transition: color .2s; }
.footer a:hover { color: var(--color-yellow); }
.footer-contact-item { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; font-size: 13px; }
.footer-icon { width: 16px; height: 16px; stroke: var(--color-yellow); fill: none; flex-shrink: 0; }
.footer-bottom { text-align: center; padding-top: 24px; margin-top: 32px; border-top: 1px solid rgba(255,255,255,.06); font-size: 12px; color: rgba(255,255,255,.3); }

/* Float consult */
.float-consult{position:fixed;bottom:40px;right:24px;z-index:1000;display:flex;flex-direction:column-reverse;gap:10px;align-items:flex-end}
.float-consult .float-item{display:flex;align-items:center;gap:10px;flex-direction:row-reverse}
.float-btn{width:48px;height:48px;border-radius:50%;background:var(--color-yellow);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(249,189,0,.3);cursor:pointer;transition:all .3s;flex-shrink:0}
.float-btn:hover{transform:scale(1.1);box-shadow:0 6px 24px rgba(249,189,0,.4)}
.float-icon{width:22px;height:22px}
.float-label{padding:6px 14px;background:var(--color-dark);color:#fff;border-radius:20px;font-size:13px;white-space:nowrap;opacity:0;transform:translateX(10px);pointer-events:none;transition:all .25s}
.float-consult:hover .float-label{opacity:1;transform:translateX(0);pointer-events:auto}

/* WeChat Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.modal-box{background:#fff;border-radius:20px;padding:40px 32px 32px;max-width:360px;width:100%;text-align:center;position:relative;animation:modalIn .3s ease}
@keyframes modalIn{0%{opacity:0;transform:scale(.9) translateY(20px)}100%{opacity:1;transform:scale(1) translateY(0)}}
.modal-close{position:absolute;top:16px;right:20px;font-size:28px;color:#999;cursor:pointer;line-height:1;transition:color .2s}
.modal-close:hover{color:#333}
.modal-icon{margin-bottom:16px}
.modal-wechat-icon{width:56px;height:56px;background:rgba(249,189,0,.1);border-radius:14px;padding:12px}
.modal-box h3{font-size:20px;color:var(--color-dark);margin-bottom:8px}
.modal-desc{font-size:13px;color:var(--color-text-light);margin-bottom:20px}
.modal-wechat-id{display:flex;align-items:center;gap:10px;justify-content:center;padding:12px 16px;background:rgba(249,189,0,.06);border:1px solid rgba(249,189,0,.15);border-radius:12px;margin-bottom:16px}
.modal-wechat-id span{font-size:18px;font-weight:700;color:var(--color-dark);letter-spacing:1px}
.copy-btn{padding:6px 16px;background:var(--color-yellow);border:none;border-radius:8px;font-size:13px;font-weight:600;color:var(--color-dark);cursor:pointer;transition:opacity .2s;white-space:nowrap}
.copy-btn:hover{opacity:.85}
.modal-tip{font-size:12px;color:#999}
.phone-list{display:flex;flex-direction:column;gap:10px;margin-bottom:4px}
.phone-item{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px 16px;background:rgba(249,189,0,.06);border:1px solid rgba(249,189,0,.2);border-radius:12px;color:var(--color-dark);font-size:18px;font-weight:700;text-decoration:none;letter-spacing:1px;transition:background .2s}
.phone-item:hover{background:rgba(249,189,0,.15)}
.phone-item .phone-icon{width:18px;height:18px;stroke:var(--color-yellow);fill:none;flex-shrink:0}
.wechat-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;background:rgba(249,189,0,.06);border:1px solid rgba(249,189,0,.2);border-radius:12px;margin-bottom:10px}
.wechat-item .wechat-id{font-size:16px;font-weight:600;color:var(--color-dark);letter-spacing:1px}

@media(max-width:768px){
  .float-consult{bottom:20px;right:16px;gap:8px}
  .float-btn{width:44px;height:44px}
  .float-icon{width:20px;height:20px}
}

/* Page header */
.page-header { background: var(--color-dark); color: var(--color-white); text-align: center; padding: 60px 20px; }
.page-header h1 { font-size: 32px; margin-bottom: 8px; }
.page-header p { color: rgba(255,255,255,.6); }

/* Filter bar */
.filter-bar { max-width: 1200px; margin: 24px auto; display: flex; gap: 16px; padding: 0 20px; }
.filter-bar select { padding: 8px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 14px; }

/* Quote form */
.quote-form { max-width: 600px; margin: 40px auto; padding: 0 20px; }
.quote-form .step { margin-bottom: 32px; }
.quote-form .step h2 { font-size: 18px; margin-bottom: 16px; text-align: left; color: var(--color-dark); }
.quote-form select, .quote-form input { width: 100%; padding: 12px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 12px; }
.project-checkbox { display: flex; align-items: center; padding: 12px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); margin-bottom: 8px; cursor: pointer; }
.project-checkbox input { width: auto; margin-right: 12px; margin-bottom: 0; }
.project-name { flex: 1; font-size: 14px; }
.project-price { font-size: 14px; font-weight: 600; color: var(--color-yellow); }
.price-total { text-align: center; padding: 24px; background: var(--color-dark); border-radius: var(--radius-md); }
.price-total .label { font-size: 16px; color: rgba(255,255,255,.6); }
.price-total .amount { font-size: 36px; font-weight: 700; color: var(--color-yellow); margin-left: 8px; }

/* Responsive */
@media (max-width: 768px) {
  .nav { display: none; }
  .header-contact { display: none; }
  .nav-toggle { display: flex; }
  .banner-overlay h1 { font-size: 24px; }
  .grid, .grid-4 { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .footer-contact-item { justify-content: center; }
}