/* ==========================================================================
   海豚海外仓系统 — 清新海洋风格
   ========================================================================== */

:root {
  --blue: #0ea5e9;
  --blue-dark: #0369a1;
  --teal: #14b8a6;
  --cyan: #22d3ee;
  --ink: #12303f;
  --muted: #5b7684;
  --line: #dbeef7;
  --bg: #ffffff;
  --bg-soft: #f0f9fd;
  --bg-tint: #f4fbfe;
  --radius: 18px;
  --shadow-sm: 0 2px 12px rgba(14,165,233,.07);
  --shadow: 0 18px 46px rgba(14,165,233,.14);
  --maxw: 1160px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC","Microsoft YaHei","Helvetica Neue",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif; color: var(--ink); background: var(--bg); line-height: 1.75; font-size: 15px; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 头部 */
.site-header { position: sticky; top: 0; z-index: 200; background: rgba(255,255,255,.95); backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 14px; flex-wrap: nowrap; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 21px; font-weight: 800; color: var(--blue-dark); letter-spacing: -.5px; white-space: nowrap; flex: none; }
.brand .logo-mark { width: 40px; height: 40px; border-radius: 50%; flex: none; background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; display: grid; place-items: center; font-size: 18px; font-weight: 800; box-shadow: 0 6px 16px rgba(14,165,233,.3); }
.brand em { font-style: normal; color: var(--teal); }
.main-nav > ul { display: flex; align-items: center; gap: 0; flex-wrap: nowrap; }
.main-nav > ul > li { flex: none; }
.main-nav > ul > li > a { display: block; padding: 9px 11px; border-radius: 8px; font-size: 14.5px; font-weight: 600; color: var(--ink); white-space: nowrap; transition: color .2s, background .2s; }
.main-nav > ul > li > a:hover, .main-nav > ul > li > a.active { color: var(--blue); background: var(--bg-tint); }
.header-cta { background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; padding: 10px 22px; border-radius: 99px; font-weight: 700; font-size: 14px; white-space: nowrap; box-shadow: 0 8px 20px rgba(14,165,233,.3); transition: transform .2s; }
.header-cta:hover { transform: translateY(-2px); }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--blue); cursor: pointer; }

/* 按钮 */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 30px; border-radius: 99px; font-size: 15px; font-weight: 700; cursor: pointer; border: none; transition: transform .2s, box-shadow .2s; }
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; box-shadow: 0 12px 28px rgba(14,165,233,.32); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-outline { background: #fff; color: var(--blue-dark); border: 2px solid var(--blue); }
.btn-outline:hover { background: var(--bg-tint); }
.btn-lg { padding: 17px 40px; font-size: 16px; }
.btn-block { width: 100%; }

/* Hero（海洋渐变 + 波浪） */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, #e8f6ff 0%, #f4fbfe 60%, #fff 100%); padding: 84px 0 0; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: #fff; border: 1px solid #cdecf7; color: var(--blue); padding: 7px 16px; border-radius: 99px; font-size: 13px; margin-bottom: 22px; }
.hero h1 { font-size: 44px; line-height: 1.22; font-weight: 800; letter-spacing: -1.2px; color: var(--ink); margin-bottom: 18px; }
.hero h1 .hl { background: linear-gradient(90deg, var(--blue), var(--teal)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 16.5px; color: var(--muted); max-width: 520px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 42px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; }
.hero-stats .stat b { display: block; font-size: 34px; font-weight: 800; color: var(--blue-dark); line-height: 1; }
.hero-stats .stat b em { font-style: normal; color: var(--teal); }
.hero-stats .stat span { font-size: 13px; color: var(--muted); }
.hero-visual { position: relative; }
.hero-visual .frame { background: #fff; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); overflow: hidden; }
.hero-visual .frame .bar { background: linear-gradient(135deg, var(--blue-dark), var(--blue)); padding: 11px 16px; color: #cdecf7; font-size: 12px; }
.hero-visual .frame .body { padding: 18px; display: grid; gap: 10px; }
.hero-visual .frame .row { display: flex; align-items: center; gap: 11px; background: var(--bg-tint); border: 1px solid var(--line); border-radius: 10px; padding: 11px; }
.hero-visual .frame .row .ic { width: 30px; height: 30px; border-radius: 8px; background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; display: grid; place-items: center; font-size: 15px; flex: none; }
.hero-visual .frame .row .ln { flex: 1; height: 9px; border-radius: 4px; background: #dcebf3; }
.hero-visual .frame .row .pill { background: #e0f5ff; color: var(--blue); font-size: 11px; padding: 3px 9px; border-radius: 99px; font-weight: 700; }
.wave { margin-top: -2px; line-height: 0; }
.wave svg { width: 100%; height: 90px; }

/* 通用 */
.section { padding: 84px 0; }
.section-soft { background: var(--bg-soft); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.sec-head .kicker { display: inline-block; color: var(--blue); font-weight: 700; font-size: 13px; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.sec-head h2 { font-size: 34px; font-weight: 800; letter-spacing: -.6px; color: var(--ink); margin-bottom: 14px; }
.sec-head h2 em { font-style: normal; color: var(--teal); }
.sec-head p { color: var(--muted); font-size: 15.5px; }

/* 功能卡 */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feat-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; }
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.feat-card .ic { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; display: grid; place-items: center; font-size: 25px; margin-bottom: 16px; }
.feat-card h3 { font-size: 18px; color: var(--ink); margin-bottom: 8px; }
.feat-card p { font-size: 13.5px; color: var(--muted); }

/* 报表（数据卡） */
.report-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.report-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-sm); }
.report-card b { display: block; color: var(--blue-dark); font-size: 17px; margin-bottom: 12px; }
.report-card ul li { font-size: 13.5px; color: var(--muted); padding: 7px 0; border-bottom: 1px dashed var(--line); }
.report-card ul li:last-child { border-bottom: none; }

/* 特点 */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.spec-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; text-align: center; box-shadow: var(--shadow-sm); }
.spec-card .ic { width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%; background: var(--bg-tint); border: 1px solid var(--line); color: var(--blue); display: grid; place-items: center; font-size: 25px; }
.spec-card h3 { font-size: 16px; color: var(--ink); margin-bottom: 8px; }
.spec-card p { font-size: 13px; color: var(--muted); }

/* 价格 */
.price-grid { display: grid; grid-template-columns: repeat(2, 1fr); max-width: 820px; margin: 0 auto; gap: 22px; align-items: stretch; }
.price-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px 26px; text-align: center; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: transform .25s, box-shadow .25s; }
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.price-card.featured { border: 2px solid var(--teal); }
.price-card h3 { font-size: 18px; color: var(--ink); margin-bottom: 8px; }
.price-card .amount { font-size: 34px; font-weight: 800; color: var(--blue); margin-bottom: 20px; }
.price-card ul { text-align: left; margin-bottom: 24px; display: grid; gap: 9px; }
.price-card ul li { font-size: 13.5px; color: var(--muted); padding-left: 20px; position: relative; }
.price-card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
.price-card .btn { margin-top: auto; }

/* FAQ */
.faq { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: #fff; overflow: hidden; }
.faq-item summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; color: var(--ink); font-size: 15px; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 20px; color: var(--blue); transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 22px 18px; color: var(--muted); font-size: 14px; }

/* 联系 */
.contact { background: linear-gradient(180deg, var(--bg-tint), #fff); padding: 84px 0; }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 44px; align-items: center; }
.contact h2 { font-size: 34px; font-weight: 800; color: var(--ink); margin-bottom: 14px; }
.contact h2 em { font-style: normal; color: var(--teal); }
.contact .lead { color: var(--muted); margin-bottom: 28px; }
.contact-info { display: grid; gap: 14px; }
.contact-row { display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; box-shadow: var(--shadow-sm); }
.contact-row .ic { width: 42px; height: 42px; border-radius: 11px; background: var(--bg-tint); color: var(--blue); display: grid; place-items: center; flex: none; font-size: 18px; }
.contact-row b { display: block; font-size: 13px; color: var(--muted); font-weight: 500; }
.contact-row .val { font-size: 17px; font-weight: 700; color: var(--ink); }
.contact-qr { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; text-align: center; box-shadow: var(--shadow); }
.contact-qr img { width: 190px; margin: 0 auto 14px; border-radius: 12px; }
.contact-qr b { display: block; color: var(--ink); font-size: 18px; margin-bottom: 4px; }
.contact-qr p { color: var(--muted); font-size: 13px; }

/* 页脚 */
.footer { background: #0b3547; color: #9cc5d6; padding: 44px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.2fr; gap: 32px; padding-bottom: 30px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer p { font-size: 13px; color: #9cc5d6; }
.footer ul li { margin-bottom: 9px; font-size: 13px; }
.footer ul li a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1a4d63; padding-top: 22px; display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 12.5px; color: #7fa9bb; }
.footer-bottom a { color: #9cc5d6; }
.footer-bottom a:hover { color: #fff; }

.float-wx { position: fixed; right: 22px; bottom: 22px; z-index: 300; }
.wx-fab { width: 58px; height: 58px; border-radius: 50%; background: linear-gradient(135deg, var(--blue), var(--teal)); color: #fff; display: grid; place-items: center; font-size: 12px; font-weight: 800; line-height: 1.2; text-align: center; cursor: pointer; box-shadow: 0 10px 26px rgba(14,165,233,.4); }
.wx-pop { position: absolute; right: 0; bottom: 70px; width: 230px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 20px; text-align: center; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all .25s; box-shadow: var(--shadow); }
.wx-pop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.wx-pop img { width: 150px; margin: 0 auto 12px; border-radius: 10px; }
.wx-pop b { display: block; color: var(--ink); font-size: 14px; }
.wx-pop p { font-size: 12.5px; color: var(--muted); }

.modal-overlay { position: fixed; inset: 0; background: rgba(11,53,71,.6); backdrop-filter: blur(4px); z-index: 400; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.show { display: flex; }
.modal { position: relative; background: #fff; border-radius: 18px; max-width: 380px; width: 100%; padding: 34px 30px 28px; text-align: center; box-shadow: 0 40px 90px rgba(0,0,0,.3); animation: mp .25s ease; }
@keyframes mp { from { transform: scale(.92); opacity: 0; } to { transform: scale(1); opacity: 1; } }
.modal-close { position: absolute; top: 14px; right: 16px; border: none; background: #f2f6f8; color: #555; width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 16px; }
.modal h3 { color: var(--ink); font-size: 21px; font-weight: 800; margin-bottom: 6px; }
.modal .sub { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.modal-qr { width: 180px; margin: 0 auto 16px; border-radius: 12px; border: 1px solid var(--line); }
.modal-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 10px; padding: 11px 15px; margin-bottom: 10px; font-size: 14px; color: var(--muted); }
.modal-row .val { font-weight: 700; color: var(--blue); font-size: 16px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 1024px) {
  .feat-grid, .spec-grid, .report-grid { grid-template-columns: repeat(2, 1fr); }
  .price-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .hero { padding: 60px 0 0; }
  .hero-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 32px; }
  .header-cta { display: none; }
  .nav-toggle { display: block; }
  .main-nav { position: fixed; inset: 0 0 0 auto; width: 82%; max-width: 340px; background: #fff; z-index: 250; padding: 24px; transform: translateX(100%); transition: transform .3s; box-shadow: var(--shadow); overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-overlay { position: fixed; inset: 0; background: rgba(11,53,71,.5); z-index: 240; opacity: 0; visibility: hidden; transition: .3s; }
  .nav-overlay.show { opacity: 1; visibility: visible; }
}
@media (max-width: 560px) {
  .feat-grid, .spec-grid, .report-grid, .footer-grid { grid-template-columns: 1fr; }
  .sec-head h2 { font-size: 28px; }
  .section { padding: 60px 0; }
  .hero h1 { font-size: 26px; }
}

.center { text-align: center; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 28px; }