/* ============================================
   模板 3: haiyang - 海洋港湾
   风格:深海蓝+浪花白、波浪、贝壳
   适配:青岛、厦门、三亚、大连等海滨城市
   ============================================ */
:root {
  --c-bg: #FFFFFF;
  --c-bg-alt: #E8F4FA;
  --c-card: #FFFFFF;
  --c-text: #0A2540;
  --c-text-2: #4A6582;
  --c-text-3: #8DA3BC;
  --c-accent: #0077B6;
  --c-accent-2: #00B4D8;
  --c-accent-3: #90E0EF;
  --c-border: #D6E7F2;
  --c-grad-1: linear-gradient(135deg, #0077B6 0%, #00B4D8 100%);
  --c-grad-2: linear-gradient(180deg, #CAF0F8 0%, #FFFFFF 100%);
  --font-body: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans CN","Noto Sans SC",-apple-system,BlinkMacSystemFont,sans-serif;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; -webkit-font-smoothing:antialiased; scroll-behavior:smooth; }
body { font-family:var(--font-body); background:var(--c-bg); color:var(--c-text); line-height:1.75; overflow-x:hidden; }
a { color:inherit; text-decoration:none; }
img { max-width:100%; display:block; }
.container { max-width:1280px; margin:0 auto; padding:0 24px; }

/* Hero */
.hy-hero { position:relative; min-height:90vh; overflow:hidden; background:linear-gradient(180deg, #CAF0F8 0%, #FFFFFF 60%); display:flex; flex-direction:column; }
.hy-hero::before { content:""; position:absolute; top:0; left:0; right:0; height:60%; background:radial-gradient(ellipse 80% 60% at 50% 0%, rgba(0,180,216,0.25), transparent 70%), radial-gradient(ellipse 40% 40% at 80% 30%, rgba(144,224,239,0.4), transparent 60%); }
.hy-wave-top, .hy-wave-bot { position:absolute; left:0; right:0; width:100%; height:80px; }
.hy-wave-top { top:0; opacity:0.3; }
.hy-wave-bot { bottom:0; }
.hy-wave-top svg, .hy-wave-bot svg { width:100%; height:100%; }
.hy-nav { position:relative; z-index:5; padding:24px 0; }
.hy-nav-inner { display:flex; justify-content:space-between; align-items:center; }
.hy-logo { display:flex; align-items:center; gap:10px; font-size:20px; font-weight:700; }
.hy-logo-ic { width:36px; height:36px; border-radius:50%; background:var(--c-grad-1); display:flex; align-items:center; justify-content:center; color:#fff; font-size:18px; }
.hy-logo span.tag { font-size:14px; color:var(--c-text-2); font-weight:400; padding-left:10px; margin-left:6px; border-left:1px solid var(--c-border); }
.hy-nav-links { display:flex; gap:28px; list-style:none; font-size:14px; }
.hy-nav-links a { color:var(--c-text-2); }
.hy-nav-links a:hover, .hy-nav-links a.cta { color:var(--c-accent); }
.hy-hero-body { position:relative; z-index:3; flex:1; display:flex; align-items:center; padding:60px 0 100px; }
.hy-eyebrow { display:inline-flex; align-items:center; gap:8px; padding:6px 16px; background:rgba(0,119,182,0.08); border-radius:999px; font-size:13px; color:var(--c-accent); margin-bottom:24px; }
.hy-eyebrow::before { content:"🌊"; }
.hy-title { font-size:clamp(36px, 5.5vw, 62px); font-weight:700; line-height:1.2; margin-bottom:24px; letter-spacing:-1px; color:var(--c-text); }
.hy-title em { font-style:normal; background:linear-gradient(135deg, #0077B6 0%, #00B4D8 50%, #90E0EF 100%); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.hy-sub { font-size:17px; color:var(--c-text-2); max-width:760px; margin-bottom:36px; }
.hy-actions { display:flex; gap:16px; flex-wrap:wrap; }
.hy-btn { display:inline-flex; align-items:center; gap:8px; padding:14px 28px; border-radius:999px; font-size:15px; font-weight:600; transition:all .25s; cursor:pointer; }
.hy-btn-pri { background:var(--c-grad-1); color:#fff; box-shadow:0 8px 24px rgba(0,119,182,0.25); }
.hy-btn-pri:hover { transform:translateY(-2px); box-shadow:0 14px 32px rgba(0,119,182,0.35); }
.hy-btn-ghost { background:rgba(0,119,182,0.06); border:1px solid var(--c-accent); color:var(--c-accent); }
.hy-stats { display:grid; grid-template-columns:repeat(4, 1fr); gap:32px; margin-top:64px; padding:32px; background:rgba(255,255,255,0.6); backdrop-filter:blur(20px); border:1px solid var(--c-border); border-radius:20px; box-shadow:0 12px 40px rgba(0,119,182,0.08); }
.hy-stat-num { font-size:38px; font-weight:800; color:var(--c-accent); }
.hy-stat-num small { font-size:16px; }
.hy-stat-lbl { font-size:13px; color:var(--c-text-2); margin-top:4px; }

/* Section */
.hy-sec { padding:96px 0; position:relative; }
.hy-sec-alt { background:var(--c-bg-alt); }
.hy-head { text-align:center; margin-bottom:64px; }
.hy-eye { display:inline-block; font-size:12px; letter-spacing:3px; color:var(--c-accent); margin-bottom:12px; font-weight:700; }
.hy-h2 { font-size:clamp(28px, 3.5vw, 42px); font-weight:800; margin-bottom:16px; }
.hy-h2 em { font-style:normal; color:var(--c-accent); }
.hy-desc { font-size:16px; color:var(--c-text-2); max-width:700px; margin:0 auto; }

/* Cards */
.hy-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.hy-card { background:var(--c-card); border:1px solid var(--c-border); border-radius:20px; padding:32px; transition:all .3s; position:relative; overflow:hidden; }
.hy-card::after { content:""; position:absolute; top:0; left:0; right:0; height:4px; background:var(--c-grad-1); transform:scaleX(0); transform-origin:left; transition:transform .4s; }
.hy-card:hover { transform:translateY(-6px); box-shadow:0 20px 48px rgba(0,119,182,0.15); }
.hy-card:hover::after { transform:scaleX(1); }
.hy-card-icon { width:52px; height:52px; border-radius:14px; background:linear-gradient(135deg, rgba(0,119,182,0.1), rgba(0,180,216,0.1)); display:flex; align-items:center; justify-content:center; color:var(--c-accent); margin-bottom:20px; }
.hy-card h3 { font-size:20px; margin-bottom:12px; }
.hy-card p { font-size:14px; color:var(--c-text-2); }
.hy-tags { display:flex; flex-wrap:wrap; gap:6px; margin-top:16px; }
.hy-tags li { list-style:none; font-size:12px; padding:4px 12px; border-radius:999px; background:rgba(0,180,216,0.1); color:var(--c-accent); }

/* Strength */
.hy-strength { display:grid; grid-template-columns:repeat(6, 1fr); gap:16px; margin-bottom:48px; }
.hy-strength-i { text-align:center; padding:28px 12px; background:var(--c-card); border:1px solid var(--c-border); border-radius:14px; }
.hy-strength-n { font-size:32px; font-weight:800; color:var(--c-accent); }
.hy-strength-s { font-size:13px; color:var(--c-text-2); margin-top:4px; }
.hy-strength-l { font-size:12px; color:var(--c-text-3); margin-top:8px; }

/* Cases */
.hy-cases { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.hy-case { background:var(--c-card); border:1px solid var(--c-border); border-radius:20px; overflow:hidden; transition:all .3s; }
.hy-case:hover { transform:translateY(-6px); box-shadow:0 16px 40px rgba(0,119,182,0.12); }
.hy-case-cover { height:180px; position:relative; background:linear-gradient(135deg, #0077B6, #00B4D8); }
.hy-case-cover::before { content:""; position:absolute; inset:0; background:radial-gradient(ellipse at top right, rgba(255,255,255,0.3), transparent 60%); }
.hy-case-tag { position:absolute; top:18px; left:18px; padding:5px 14px; background:rgba(255,255,255,0.95); border-radius:999px; font-size:12px; color:var(--c-accent); z-index:2; font-weight:600; }
.hy-case-body { padding:24px; }
.hy-case h4 { font-size:18px; margin-bottom:8px; }
.hy-case p { font-size:13px; color:var(--c-text-2); }
.hy-case-meta { display:flex; flex-wrap:wrap; gap:6px; margin-top:14px; }
.hy-case-meta span { font-size:11px; padding:3px 8px; border-radius:6px; background:var(--c-bg-alt); color:var(--c-text-2); }

/* FAQ */
.hy-faq { max-width:880px; margin:0 auto; }
.hy-faq-i { background:var(--c-card); border:1px solid var(--c-border); border-radius:14px; margin-bottom:12px; padding:22px 26px; }
.hy-faq-i summary { list-style:none; cursor:pointer; display:flex; justify-content:space-between; align-items:center; font-size:16px; font-weight:600; }
.hy-faq-i summary::-webkit-details-marker { display:none; }
.hy-faq-i p { margin-top:14px; padding-top:14px; border-top:1px solid var(--c-border); font-size:14px; color:var(--c-text-2); }
.hy-faq-i summary::after { content:"+"; font-size:22px; color:var(--c-accent); transition:transform .2s; }
.hy-faq-i[open] summary::after { transform:rotate(45deg); }

/* Contact */
.hy-contact { display:grid; grid-template-columns:repeat(3, 1fr); gap:20px; }
.hy-contact-i { padding:32px; background:var(--c-card); border:1px solid var(--c-border); border-radius:16px; text-align:center; }
.hy-contact-i .ic { width:48px; height:48px; margin:0 auto 16px; border-radius:14px; background:var(--c-grad-1); color:#fff; display:flex; align-items:center; justify-content:center; }
.hy-contact-i .lb { font-size:13px; color:var(--c-text-3); }
.hy-contact-i .vl { font-size:18px; font-weight:700; margin:8px 0; }
.hy-contact-i .tp { font-size:12px; color:var(--c-text-3); }

/* Footer */
.hy-foot { background:linear-gradient(180deg, #0A2540 0%, #051528 100%); color:#CAD8E6; padding:64px 0 24px; }
.hy-foot h4 { font-size:14px; color:#90E0EF; margin-bottom:16px; }
.hy-foot ul { list-style:none; }
.hy-foot li { font-size:13px; color:#9DB1C5; margin-bottom:8px; }
.hy-foot a:hover { color:#90E0EF; }
.hy-foot-main { display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:48px; margin-bottom:48px; }
.hy-foot-brand p { font-size:13px; color:#9DB1C5; margin-top:12px; }
.hy-foot-cities { padding:32px 0; border-top:1px solid rgba(144,224,239,0.15); border-bottom:1px solid rgba(144,224,239,0.15); }
.hy-foot-cities h5 { font-size:13px; color:#90E0EF; margin-bottom:16px; }
.hy-foot-cities-grid { display:grid; grid-template-columns:repeat(10, 1fr); gap:8px 16px; }
.hy-foot-cities-grid a { font-size:12px; color:#9DB1C5; }
.hy-foot-bot { padding-top:24px; text-align:center; font-size:12px; color:#6E8298; }

@media (max-width: 980px) {
  .hy-grid, .hy-cases, .hy-contact { grid-template-columns:1fr; }
  .hy-strength { grid-template-columns:repeat(2, 1fr); }
  .hy-foot-main { grid-template-columns:1fr 1fr; }
  .hy-foot-cities-grid { grid-template-columns:repeat(4, 1fr); }
  .hy-nav-links { display:none; }
  .hy-stats { grid-template-columns:repeat(2, 1fr); }
}