:root{--c-primary:#ffffff;--font:'Microsoft YaHei','PingFang SC',sans-serif;}
/* ============ 雅白齿科连锁 亮白杂志风 ============ */
:root {
  --white:#ffffff;
  --coral:#ff8a7a;
  --blue:#2a7bd5;
  --ink:#22303f;
  --muted:#7d8ba1;
  --line:rgba(42,123,213,.18);
  --soft:#f4faff;
  --shadow:0 16px 40px rgba(42,123,213,.12);
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:"Microsoft YaHei","PingFang SC",sans-serif; color:var(--ink); background:var(--white); overflow-x:hidden; }
a { text-decoration:none; color:inherit; }
ul { list-style:none; }
img { max-width:100%; display:block; }
.container { max-width:1200px; margin:0 auto; padding:0 24px; }

/* 牙齿图标（CSS 绘制） */
.tooth-icon { position:relative; width:30px; height:36px; background:#fff; border:2px solid var(--coral); border-radius:52% 52% 24% 24% / 60% 60% 30% 30%; flex:0 0 auto; }
.tooth-icon::before { content:""; position:absolute; left:6px; right:6px; top:5px; height:7px; background:rgba(255,138,122,.28); border-radius:50%; }
.tooth-icon::after { content:""; position:absolute; bottom:-5px; left:8px; width:2px; height:6px; background:var(--coral); box-shadow:12px 0 0 var(--coral); }
.tooth-icon.blue { border-color:var(--blue); }
.tooth-icon.blue::before { background:rgba(42,123,213,.25); }
.tooth-icon.blue::after { background:var(--blue); box-shadow:12px 0 0 var(--blue); }

/* ---------- 导航 ---------- */
.site-header { position:fixed; top:0; left:0; right:0; z-index:999; background:rgba(255,255,255,.96); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.nav-wrap { display:flex; align-items:center; justify-content:space-between; height:72px; }
.logo { display:flex; align-items:center; gap:12px; }
.logo-mark { width:44px; height:44px; border-radius:50%; background:var(--white); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; box-shadow:0 6px 18px rgba(255,138,122,.22); }
.logo-mark .tooth-icon { width:22px; height:27px; }
.logo-text { display:flex; flex-direction:column; line-height:1.15; }
.logo-text b { font-size:20px; font-weight:800; color:var(--ink); letter-spacing:2px; }
.logo-text span { font-size:10px; letter-spacing:4px; color:var(--blue); font-weight:600; margin-top:2px; }
.main-nav { display:flex; gap:4px; }
.main-nav a { padding:10px 16px; font-size:15px; font-weight:600; color:var(--ink); position:relative; transition:.3s; }
.main-nav a::after { content:""; position:absolute; left:16px; right:16px; bottom:4px; height:2px; background:var(--coral); transform:scaleX(0); transition:.3s; }
.main-nav a:hover::after { transform:scaleX(1); }
.main-nav a.active { color:var(--coral); }
.main-nav a.active::after { transform:scaleX(1); }
.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span { width:24px; height:2px; background:var(--ink); border-radius:2px; transition:.3s; }

/* ---------- Hero：洁齿微笑弧线 ---------- */
.hero { padding:150px 0 80px; position:relative; background:
  radial-gradient(500px 320px at 12% 90%, rgba(42,123,213,.08), transparent 60%),
  linear-gradient(180deg,#f2f9ff 0%,#ffffff 70%); }
.hero::before { content:""; position:absolute; top:72px; right:8%; width:1px; height:300px; background:linear-gradient(180deg,transparent,var(--line),transparent); }
.hero-inner { display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center; }
.hero-tag { display:inline-flex; align-items:center; gap:10px; font-size:13px; font-weight:700; letter-spacing:3px; color:var(--blue); margin-bottom:24px; }
.hero-tag::before { content:""; width:34px; height:1px; background:var(--coral); }
.hero h1 { font-size:48px; line-height:1.28; font-weight:800; color:var(--ink); margin-bottom:22px; letter-spacing:1px; }
.hero h1 em { font-style:normal; color:var(--coral); position:relative; }
.hero h1 em::after { content:""; position:absolute; left:0; right:0; bottom:4px; height:12px; background:rgba(255,138,122,.2); z-index:-1; }
.hero-text p { font-size:16px; line-height:2; color:var(--muted); max-width:460px; margin-bottom:34px; }
.hero-actions { display:flex; gap:16px; }
.btn { display:inline-block; padding:14px 32px; font-weight:700; font-size:15px; border-radius:4px; transition:.3s; border:1px solid transparent; cursor:pointer; letter-spacing:1px; }
.btn-primary { background:var(--coral); color:#fff; box-shadow:0 12px 26px rgba(255,138,122,.4); }
.btn-primary:hover { transform:translateY(-3px); box-shadow:0 18px 34px rgba(255,138,122,.5); }
.btn-blue { background:var(--blue); color:#fff; box-shadow:0 12px 26px rgba(42,123,213,.35); }
.btn-blue:hover { transform:translateY(-3px); }
.btn-outline { background:transparent; color:var(--blue); border-color:var(--blue); }
.btn-outline:hover { background:var(--blue); color:#fff; }
.btn-light { background:#fff; color:var(--coral); }
.btn-block { display:block; width:100%; text-align:center; }

/* 牙齿微笑弧线 */
.smile { position:relative; width:440px; height:300px; margin:0 auto; }
.smile::before { content:""; position:absolute; left:8%; right:8%; bottom:46px; height:3px; border-bottom:3px solid rgba(255,138,122,.5); border-radius:50%; }
.smile-arc { position:absolute; left:0; right:0; bottom:40px; height:150px; display:flex; justify-content:center; align-items:flex-end; }
.teeth { display:flex; gap:6px; align-items:flex-end; transform-origin:50% 100%; }
.tooth { width:54px; height:64px; background:#fff; border:2px solid #dcecfc; border-radius:50% 50% 26% 26% / 58% 58% 34% 34%; box-shadow:0 10px 22px rgba(42,123,213,.14); position:relative; }
.tooth::before { content:""; position:absolute; left:9px; right:9px; top:8px; height:9px; background:linear-gradient(180deg,rgba(255,255,255,1),rgba(255,255,255,0)); border-radius:50%; box-shadow:0 2px 0 rgba(42,123,213,.12); }
.tooth::after { content:""; position:absolute; bottom:-6px; left:15px; width:3px; height:7px; background:rgba(42,123,213,.35); box-shadow:20px 0 0 rgba(42,123,213,.35); }
.tooth:nth-child(1){ transform:rotate(-24deg) translate(6px,12px); }
.tooth:nth-child(2){ transform:rotate(-15deg) translate(3px,7px); }
.tooth:nth-child(3){ transform:rotate(-7deg) translate(1px,3px); }
.tooth:nth-child(4){ transform:none; }
.tooth:nth-child(5){ transform:rotate(7deg) translate(-1px,3px); }
.tooth:nth-child(6){ transform:rotate(15deg) translate(-3px,7px); }
.tooth:nth-child(7){ transform:rotate(24deg) translate(-6px,12px); }
.smile-glow { position:absolute; top:30px; left:60px; width:140px; height:120px; background:linear-gradient(160deg,rgba(255,255,255,.95),rgba(255,255,255,0)); border-radius:50%; filter:blur(2px); }
.smile-note { position:absolute; bottom:0; left:50%; transform:translateX(-50%); font-size:12px; letter-spacing:3px; color:var(--blue); font-weight:700; white-space:nowrap; }
.smile-note::before,.smile-note::after { content:"—"; margin:0 10px; color:var(--coral); }

/* 数据带 */
.stats-band { padding:0 0 70px; }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); background:#fff; border:1px solid var(--line); }
.stat { text-align:center; padding:34px 16px; border-right:1px solid var(--line); }
.stat:last-child { border-right:none; }
.stat b { display:block; font-size:38px; font-weight:800; color:var(--blue); font-family:Georgia,serif; }
.stat b i { font-style:normal; color:var(--coral); }
.stat p { font-size:14px; color:var(--muted); margin-top:6px; letter-spacing:1px; }

/* ---------- Section 通用（杂志细线分隔） ---------- */
.section { padding:96px 0; position:relative; }
.section::before { content:""; position:absolute; top:0; left:0; right:0; height:1px; background:linear-gradient(90deg,transparent,var(--line),transparent); }
.section-head { display:flex; align-items:flex-end; justify-content:space-between; gap:30px; margin-bottom:52px; }
.section-head .head-left .kicker { display:block; font-size:13px; font-weight:700; letter-spacing:4px; color:var(--coral); margin-bottom:14px; }
.section-head h2 { font-size:34px; font-weight:800; color:var(--ink); letter-spacing:1px; }
.section-head h2 span { color:var(--blue); }
.section-head .head-en { font-size:12px; letter-spacing:4px; color:var(--muted); text-align:right; }
.section-head .head-en b { display:block; font-size:30px; color:var(--blue); font-family:Georgia,serif; letter-spacing:2px; margin-bottom:6px; }

/* ---------- 洁白美学 ---------- */
.aesthetic { background:#fff; }
.aesthetic-grid { display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); }
.aes-card { padding:40px 34px; border-right:1px solid var(--line); position:relative; }
.aes-card:last-child { border-right:none; }
.aes-num { font-size:52px; font-weight:800; color:rgba(42,123,213,.16); font-family:Georgia,serif; line-height:1; margin-bottom:18px; }
.aes-card .dot { width:12px; height:12px; border-radius:50%; background:var(--coral); margin-bottom:22px; box-shadow:0 0 0 5px rgba(255,138,122,.16); }
.aes-card h3 { font-size:21px; font-weight:800; margin-bottom:14px; letter-spacing:1px; }
.aes-card p { font-size:14px; color:var(--muted); line-height:2; }
.aes-card .tooth-icon { position:absolute; right:30px; top:40px; }

/* ---------- 诊疗项目 ---------- */
.treatment { background:var(--soft); }
.treat-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.treat-card { background:#fff; border:1px solid var(--line); padding:32px 28px; transition:.35s; position:relative; }
.treat-card:hover { transform:translateY(-6px); box-shadow:var(--shadow); }
.treat-card .t-head { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; }
.treat-card h3 { font-size:20px; font-weight:800; letter-spacing:1px; }
.treat-card ul { margin-bottom:18px; }
.treat-card li { font-size:14px; color:var(--muted); padding:9px 0 9px 20px; position:relative; border-bottom:1px dashed var(--line); }
.treat-card li:last-child { border-bottom:none; }
.treat-card li::before { content:""; position:absolute; left:0; top:15px; width:8px; height:8px; border-radius:50%; background:var(--coral); }
.treat-price { display:flex; justify-content:space-between; align-items:center; }
.treat-price b { font-size:24px; color:var(--blue); font-family:Georgia,serif; }
.treat-price a { font-size:13px; font-weight:700; color:var(--coral); }
.treat-price a:hover { color:var(--blue); }

/* ---------- 案例 ---------- */
.case { background:#fff; }
.case-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.case-card { position:relative; overflow:hidden; border-radius:2px; }
.case-card img { width:100%; height:280px; object-fit:cover; transition:.5s; }
.case-card:hover img { transform:scale(1.08); }
.case-overlay { position:absolute; inset:0; background:linear-gradient(180deg,transparent 30%,rgba(34,48,63,.85)); display:flex; flex-direction:column; justify-content:flex-end; padding:22px; color:#fff; opacity:0; transition:.4s; }
.case-card:hover .case-overlay { opacity:1; }
.case-overlay .tag { align-self:flex-start; background:var(--coral); font-size:12px; padding:4px 12px; margin-bottom:10px; letter-spacing:2px; }
.case-overlay h4 { font-size:17px; margin-bottom:4px; }
.case-overlay p { font-size:13px; opacity:.85; }

/* ---------- 流程 ---------- */
.flow { background:var(--soft); }
.flow-track { display:grid; grid-template-columns:repeat(4,1fr); gap:0; }
.flow-step { text-align:center; padding:34px 20px; position:relative; }
.flow-step::before { content:""; position:absolute; top:50%; right:0; width:26px; height:1px; background:var(--line); }
.flow-step:last-child::before { display:none; }
.flow-num { display:inline-flex; width:56px; height:56px; border-radius:50%; background:#fff; border:1px solid var(--coral); color:var(--coral); font-weight:800; font-size:17px; align-items:center; justify-content:center; margin-bottom:16px; font-family:Georgia,serif; }
.flow-step h4 { font-size:16px; font-weight:800; margin-bottom:8px; }
.flow-step p { font-size:13px; color:var(--muted); line-height:1.8; }

/* ---------- 页脚 ---------- */
.site-footer { background:var(--ink); color:#c6d4e4; padding:64px 0 0; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1.2fr; gap:40px; padding-bottom:38px; }
.footer-brand h3 { font-size:20px; color:#fff; margin-bottom:14px; letter-spacing:1px; }
.footer-brand p { font-size:14px; line-height:2; opacity:.8; }
.footer-links h4 { font-size:15px; color:#fff; margin-bottom:16px; letter-spacing:2px; }
.footer-links a { display:block; font-size:14px; padding:6px 0; opacity:.8; transition:.3s; }
.footer-links a:hover { color:var(--coral); padding-left:6px; }
.footer-links p { font-size:14px; padding:4px 0; opacity:.8; line-height:1.8; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.1); padding:20px 0; text-align:center; font-size:13px; opacity:.7; }

/* ---------- 子页 Hero ---------- */
.page-hero { padding:150px 0 66px; background:linear-gradient(180deg,#eef7ff,#fff); text-align:center; border-bottom:1px solid var(--line); position:relative; }
.page-hero::after { content:""; position:absolute; left:50%; bottom:-1px; transform:translateX(-50%); width:80px; height:3px; background:var(--coral); }
.page-hero .kicker { display:inline-block; font-size:13px; letter-spacing:4px; color:var(--coral); font-weight:700; margin-bottom:14px; }
.page-hero h1 { font-size:40px; font-weight:800; color:var(--ink); margin-bottom:14px; letter-spacing:1px; }
.page-hero h1 span { color:var(--blue); }
.page-hero p { font-size:15px; color:var(--muted); }

/* about */
.about-grid { display:grid; grid-template-columns:1fr 1.1fr; gap:56px; align-items:center; }
.about-imgs { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.about-imgs img { height:230px; object-fit:cover; width:100%; }
.about-imgs img:nth-child(3){ grid-column:span 2; height:270px; }
.about-text h2 { font-size:30px; font-weight:800; margin-bottom:20px; }
.about-text h2 span { color:var(--coral); }
.about-text p { font-size:15px; line-height:2.1; color:var(--muted); margin-bottom:14px; }
.timeline { border-left:1px solid var(--line); margin:30px 0 0 10px; }
.tl-item { position:relative; padding:0 0 28px 34px; }
.tl-item::before { content:""; position:absolute; left:-6px; top:6px; width:11px; height:11px; border-radius:50%; background:var(--coral); border:2px solid #fff; box-shadow:0 0 0 3px rgba(255,138,122,.25); }
.tl-item time { font-size:13px; color:var(--blue); font-family:Georgia,serif; letter-spacing:1px; }
.tl-item h4 { font-size:17px; margin:6px 0; }
.tl-item p { font-size:14px; color:var(--muted); line-height:1.8; }
.data-table { width:100%; border-collapse:collapse; margin-top:14px; }
.data-table th { background:var(--ink); color:#fff; padding:13px; font-size:14px; letter-spacing:1px; }
.data-table td { padding:13px; border:1px solid var(--line); font-size:14px; text-align:center; color:var(--muted); }
.data-table tr:nth-child(even) td { background:var(--soft); }

/* products */
.prod-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:40px; }
.prod-card { background:#fff; border:1px solid var(--line); transition:.35s; }
.prod-card:hover { transform:translateY(-6px); box-shadow:var(--shadow); }
.prod-card img { height:210px; width:100%; object-fit:cover; }
.prod-body { padding:26px; }
.prod-body h3 { font-size:19px; margin-bottom:8px; }
.prod-body p { font-size:14px; color:var(--muted); line-height:1.9; margin-bottom:16px; }
.prod-price { display:flex; justify-content:space-between; align-items:center; }
.prod-price b { color:var(--blue); font-size:24px; font-family:Georgia,serif; }
.prod-price a { color:var(--coral); font-size:13px; font-weight:700; }
.compare-table { width:100%; border-collapse:collapse; margin-top:14px; }
.compare-table th { background:var(--blue); color:#fff; padding:14px; font-size:15px; }
.compare-table td { border:1px solid var(--line); padding:14px; text-align:center; font-size:14px; color:var(--muted); }
.compare-table .hot { background:#fff4f2; color:var(--coral); font-weight:700; }

/* news */
.news-feature { display:grid; grid-template-columns:1.2fr 1fr; gap:0; background:#fff; border:1px solid var(--line); margin-bottom:44px; }
.news-feature img { width:100%; height:340px; object-fit:cover; }
.news-feature-body { padding:40px; }
.date-badge { display:inline-block; background:var(--coral); color:#fff; font-size:12px; padding:5px 14px; letter-spacing:2px; margin-bottom:18px; }
.news-feature-body h3 { font-size:24px; margin-bottom:14px; line-height:1.5; }
.news-feature-body p { font-size:15px; color:var(--muted); line-height:2; margin-bottom:22px; }
.news-list { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; }
.news-item { display:flex; gap:18px; background:#fff; border:1px solid var(--line); padding:16px; transition:.3s; }
.news-item:hover { box-shadow:var(--shadow); }
.news-item img { width:150px; height:118px; object-fit:cover; }
.news-item h4 { font-size:16px; margin-bottom:8px; line-height:1.5; }
.news-item p { font-size:13px; color:var(--muted); line-height:1.8; }
.news-item time { font-size:12px; color:var(--blue); font-family:Georgia,serif; }

/* contact */
.contact-wrap { display:grid; grid-template-columns:1fr 1.15fr; gap:50px; align-items:start; }
.contact-info-item { display:flex; gap:16px; padding:18px 0; border-bottom:1px dashed var(--line); }
.ci-icon { width:46px; height:46px; border-radius:50%; background:var(--soft); border:1px solid var(--line); display:flex; align-items:center; justify-content:center; font-size:19px; flex:0 0 46px; }
.contact-info-item h4 { font-size:16px; margin-bottom:4px; }
.contact-info-item p { font-size:14px; color:var(--muted); line-height:1.7; }
.map-box { border-radius:2px; overflow:hidden; box-shadow:var(--shadow); margin-top:26px; }
.map-box img { width:100%; height:240px; object-fit:cover; }
.form-box { background:#fff; border:1px solid var(--line); padding:38px; box-shadow:var(--shadow); }
.form-box h3 { font-size:22px; margin-bottom:24px; letter-spacing:1px; }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-field { margin-bottom:18px; }
.form-field label { display:block; font-size:14px; font-weight:700; margin-bottom:8px; letter-spacing:1px; }
.form-field input,.form-field select,.form-field textarea { width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:4px; font-size:14px; font-family:inherit; background:#fff; transition:.3s; outline:none; }
.form-field textarea { min-height:120px; resize:vertical; }
.form-field input:focus,.form-field select:focus,.form-field textarea:focus { border-color:var(--blue); box-shadow:0 0 0 3px rgba(42,123,213,.12); }
.form-field.full { grid-column:span 2; }
.form-error { color:#e0485a; font-size:12px; margin-top:6px; display:none; }
.form-field.error input,.form-field.error textarea,.form-field.error select { border-color:#e0485a; }
.form-field.error .form-error { display:block; }
.form-success { display:none; text-align:center; padding:30px 0; color:var(--coral); font-size:16px; font-weight:700; }
.form-success .ok-icon { font-size:52px; display:block; margin-bottom:12px; }

/* CTA */
.cta-box { background:linear-gradient(120deg,var(--coral),#ffb3a3); border-radius:2px; padding:60px; text-align:center; color:#fff; position:relative; overflow:hidden; }
.cta-box::before,.cta-box::after { content:""; position:absolute; border-radius:50%; background:rgba(255,255,255,.14); }
.cta-box::before { width:220px; height:220px; top:-70px; left:-60px; }
.cta-box::after { width:280px; height:280px; bottom:-110px; right:-70px; }
.cta-box h2 { font-size:32px; font-weight:800; margin-bottom:14px; position:relative; letter-spacing:1px; }
.cta-box p { font-size:15px; opacity:.94; margin-bottom:30px; position:relative; }
.cta-actions { display:flex; gap:16px; justify-content:center; position:relative; }

/* reveal */
.reveal { opacity:0; transform:translateY(34px); transition:opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity:1; transform:none; }

/* ---------- 响应式 ---------- */
@media (max-width:992px){
  .hero-inner { grid-template-columns:1fr; }
  .smile { display:none; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(2){ border-right:none; }
  .aesthetic-grid { grid-template-columns:1fr; }
  .aes-card { border-right:none; border-bottom:1px solid var(--line); }
  .treat-grid,.prod-grid { grid-template-columns:repeat(2,1fr); }
  .case-grid { grid-template-columns:repeat(2,1fr); }
  .flow-track { grid-template-columns:repeat(2,1fr); }
  .flow-step::before { display:none; }
  .about-grid,.contact-wrap { grid-template-columns:1fr; }
  .news-list { grid-template-columns:1fr; }
  .news-feature { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .section-head { flex-direction:column; align-items:flex-start; }
  .section-head .head-en { text-align:left; }
}
@media (max-width:768px){
  .main-nav { position:fixed; top:72px; left:0; right:0; background:#fff; flex-direction:column; padding:18px 24px 26px; gap:10px; box-shadow:0 16px 30px rgba(0,0,0,.12); transform:translateY(-140%); transition:.4s; }
  .main-nav.open { transform:none; }
  .nav-toggle { display:flex; }
  .hero { padding:120px 0 60px; }
  .hero h1 { font-size:30px; }
  .treat-grid,.prod-grid { grid-template-columns:1fr; }
  .case-grid { grid-template-columns:1fr; }
  .stats-grid { grid-template-columns:1fr; }
  .stat { border-right:none; border-bottom:1px solid var(--line); }
  .form-grid { grid-template-columns:1fr; }
  .form-field.full { grid-column:span 1; }
  .footer-grid { grid-template-columns:1fr; }
  .cta-box { padding:44px 24px; }
  .section { padding:70px 0; }
  .section-head h2 { font-size:26px; }
  .news-item { flex-direction:column; }
  .news-item img { width:100%; height:180px; }
}


/* ===== CMS 表单提交反馈 ===== */
.form-success.show { display:block; }
.form-alert { padding:14px 18px; border-radius:10px; margin-bottom:20px; font-size:14px; line-height:1.8; }
.form-alert-err { background:rgba(192,57,43,.08); border:1px solid #c0392b; color:#c0392b; }
.form-success.show { padding:14px 18px; border-radius:10px; margin-bottom:20px; background:rgba(39,174,96,.1); border:1px solid #27ae60; color:#27ae60; }