/* ==========================================================================
   掠海鸟帆船 LUEHAINIAO — 深海蓝 × 纯白
   ========================================================================== */
:root {
  --navy-950: #04121f;
  --navy-900: #071c30;
  --navy-800: #0b2540;
  --navy-700: #113457;
  --navy-600: #17456f;
  --sea-500: #1d7fa8;
  --sea-400: #2f9ec6;
  --sea-100: #e3f1f7;
  --ink-900: #0c1b29;
  --ink-700: #2b3e50;
  --ink-500: #5c6f80;
  --ink-300: #93a5b4;
  --line: #e4ebf1;
  --paper: #ffffff;
  --paper-2: #f5f8fa;
  --paper-3: #edf2f6;
  --serif: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "SimHei", sans-serif;
  --sans: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "SimHei", sans-serif;
  --wrap: 1200px;
  --r: 14px;
  --shadow: 0 18px 50px -24px rgba(7, 28, 48, .35);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink-700);
  background: var(--paper);
  line-height: 1.85;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--sea-500); font-weight: 600;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--sea-400); }
.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--alt { background: var(--paper-2); }
.section--dark { background: var(--navy-900); color: #dfe9f2; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .eyebrow { justify-content: center; }
.section-title {
  font-family: var(--serif); font-weight: 700; color: var(--navy-900);
  font-size: clamp(28px, 4vw, 42px); line-height: 1.3; margin-top: 14px;
  letter-spacing: .02em;
}
.section--dark .section-title { color: #fff; }
.section-lead { margin-top: 16px; color: var(--ink-500); font-size: 16.5px; }
.section--dark .section-lead { color: #a9bfd2; }
.section-head--split {
  max-width: none; display: flex; align-items: flex-end;
  justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.section-head--split .section-head-copy { max-width: 640px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 30px; border-radius: 999px; border: 1.5px solid transparent;
  font-size: 15px; font-weight: 600; cursor: pointer; transition: .25s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--navy-800); color: #fff; }
.btn--primary:hover { background: var(--navy-700); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn--ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.14); }
.btn--line { border-color: var(--navy-800); color: var(--navy-800); background: transparent; }
.btn--line:hover { background: var(--navy-800); color: #fff; }
.btn--sea { background: var(--sea-500); color: #fff; }
.btn--sea:hover { background: var(--sea-400); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.92); backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-in { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 42px; width: auto; }
.brand-name { display: none; }
.brand-text { font-size: 19px; font-weight: 800; letter-spacing: .10em; color: #0b2540; }
@media (max-width: 430px) { .brand-text { display: none; } }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  padding: 9px 16px; border-radius: 999px; font-size: 15px; color: var(--ink-700);
  transition: .2s ease; position: relative;
}
.nav a:hover { color: var(--navy-800); background: var(--paper-3); }
.nav a.active { color: var(--navy-900); font-weight: 600; }
.nav a.active::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%);
  width: 18px; height: 2px; background: var(--sea-500); border-radius: 2px;
}
.header-cta { display: inline-flex; }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; cursor: pointer; position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 50%; width: 18px; height: 2px;
  background: var(--navy-800); transform: translateX(-50%); transition: .25s;
}
.nav-toggle span { top: 50%; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateX(-50%) rotate(45deg); top: 0; }
body.nav-open .nav-toggle span::after { transform: translateX(-50%) rotate(-45deg); top: 0; }

/* ---------- Hero ---------- */
.hero { position: relative; color: #fff; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 58%; }
.hero-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(4,18,31,.88) 0%, rgba(7,28,48,.72) 45%, rgba(7,28,48,.35) 100%);
}
/* max-width 808 = 760 内容宽 + 左右 24 内边距，桌面端文字位置与旧版完全一致，
   同时修复窄屏下 .wrap 的左右留白被覆盖、文字顶边的问题 */
.hero-in { position: relative; padding: 150px 24px; max-width: 808px; }
.hero-eyebrow {
  font-size: 12.5px; letter-spacing: .3em; text-transform: uppercase;
  color: #8fd0e8; font-weight: 600;
}
.hero-title {
  font-family: var(--serif); font-size: clamp(38px, 6vw, 68px); line-height: 1.18;
  margin: 22px 0 0; font-weight: 700; letter-spacing: .02em;
}
.hero-sub { margin-top: 18px; font-size: clamp(16px, 2vw, 20px); color: #cfe2ee; letter-spacing: .04em; }
.hero-desc { margin-top: 22px; font-size: 16px; color: #a9c3d6; max-width: 560px; }
.hero-actions { margin-top: 38px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  font-size: 11px; letter-spacing: .3em; color: rgba(255,255,255,.6);
}
.hero-scroll::after {
  content: ""; display: block; width: 1px; height: 34px; margin: 10px auto 0;
  background: linear-gradient(rgba(255,255,255,.7), transparent);
}
.page-hero { background: var(--navy-900); color: #fff; position: relative; overflow: hidden; }
.page-hero .hero-media img { object-position: 50% 45%; opacity: .55; }
.page-hero .hero-media::after { background: linear-gradient(90deg, rgba(4,18,31,.9), rgba(7,28,48,.5)); }
.page-hero .hero-in { padding: 96px 24px; }

/* ---------- 数据带 ---------- */
.stats { background: var(--navy-900); color: #fff; border-top: 1px solid rgba(255,255,255,.08); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 54px 0; }
.stat { text-align: center; }
.stat-num { font-family: var(--serif); font-size: clamp(34px, 4vw, 52px); font-weight: 700; line-height: 1; }
.stat-num sup { font-size: .45em; margin-left: 3px; color: var(--sea-400); }
.stat-label { margin-top: 10px; font-size: 14px; color: #9fb8cb; letter-spacing: .06em; }

/* ---------- 通用卡片 ---------- */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 34px 30px; transition: .3s ease; height: 100%;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.card-icon {
  width: 52px; height: 52px; border-radius: 14px; background: var(--sea-100);
  display: grid; place-items: center; margin-bottom: 20px; color: var(--sea-500);
}
.card-icon svg { width: 26px; height: 26px; }
.card-title { font-family: var(--serif); font-size: 20px; color: var(--navy-900); font-weight: 700; }
.card-text { margin-top: 12px; font-size: 15px; color: var(--ink-500); }
.card-num {
  font-family: var(--serif); font-size: 15px; font-weight: 700; color: var(--sea-500); letter-spacing: .12em;
}

/* ---------- 船型卡片 ---------- */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 38px; }
.chip {
  padding: 9px 20px; border-radius: 999px; border: 1px solid var(--line);
  background: #fff; cursor: pointer; font-size: 14px; color: var(--ink-500); transition: .2s;
}
.chip:hover { border-color: var(--sea-400); color: var(--sea-500); }
.chip.active { background: var(--navy-800); border-color: var(--navy-800); color: #fff; }
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.prod-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; display: flex; flex-direction: column; cursor: pointer;
  transition: .3s ease; text-align: left;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.prod-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--navy-900); }
.prod-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.prod-card:hover .prod-media img { transform: scale(1.05); }
.prod-tag {
  position: absolute; left: 16px; top: 16px; padding: 5px 13px; border-radius: 999px;
  background: rgba(7,28,48,.72); color: #fff; font-size: 12px; letter-spacing: .08em;
  backdrop-filter: blur(6px);
}
.prod-body { padding: 26px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.prod-name { font-family: var(--serif); font-size: 21px; font-weight: 700; color: var(--navy-900); }
.prod-sub { margin-top: 6px; font-size: 13.5px; color: var(--sea-500); letter-spacing: .04em; }
.prod-desc { margin-top: 14px; font-size: 14.5px; color: var(--ink-500); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.prod-foot {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; font-size: 14px;
}
.prod-price { color: var(--navy-900); font-weight: 600; }
.prod-more { color: var(--sea-500); font-weight: 600; }

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed; inset: 0; z-index: 100; display: none;
  align-items: center; justify-content: center; padding: 24px;
  background: rgba(4,18,31,.72); backdrop-filter: blur(4px);
}
.modal.open { display: flex; }
.modal-card {
  background: #fff; border-radius: 18px; max-width: 960px; width: 100%;
  max-height: 90vh; overflow: auto; display: grid; grid-template-columns: 1fr 1fr;
}
.modal-media { background: var(--navy-900); min-height: 320px; }
.modal-media img { width: 100%; height: 100%; object-fit: cover; }
.modal-body { padding: 40px 38px; }
.modal-close {
  position: absolute; right: 18px; top: 18px; width: 40px; height: 40px;
  border-radius: 50%; border: none; background: rgba(255,255,255,.92); cursor: pointer;
  font-size: 20px; line-height: 1; color: var(--navy-900);
}
.spec-table { width: 100%; border-collapse: collapse; margin-top: 18px; font-size: 14px; }
.spec-table td { padding: 9px 4px; border-bottom: 1px solid var(--line); }
.spec-table td:last-child { text-align: right; color: var(--navy-900); font-weight: 600; }
.spec-table td:first-child { color: var(--ink-500); }
.hl-list { margin-top: 16px; }
.hl-list li { position: relative; padding-left: 20px; margin-bottom: 9px; font-size: 14.5px; color: var(--ink-500); }
.hl-list li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--sea-400);
}

/* ---------- 服务流程 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; counter-reset: step; }
.step {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r); padding: 30px 28px; transition: .3s;
}
.step:hover { background: rgba(255,255,255,.08); transform: translateY(-4px); }
.step-num { font-family: var(--serif); font-size: 30px; font-weight: 700; color: var(--sea-400); line-height: 1; }
.step-title { margin-top: 14px; font-size: 18px; font-weight: 600; color: #fff; }
.step-text { margin-top: 10px; font-size: 14.5px; color: #9fb8cb; }

/* ---------- 图集 ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.gallery-item { position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 4 / 3; background: var(--navy-900); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  position: absolute; inset: auto 0 0 0; padding: 30px 16px 14px;
  background: linear-gradient(transparent, rgba(4,18,31,.85)); color: #fff; font-size: 13.5px;
}

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(var(--sea-400), var(--line));
}
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -33px; top: 8px; width: 16px; height: 16px;
  border-radius: 50%; background: #fff; border: 3px solid var(--sea-500);
}
.tl-year { font-family: var(--serif); font-size: 22px; font-weight: 700; color: var(--navy-900); }
.tl-title { margin-top: 4px; font-weight: 600; color: var(--navy-800); }
.tl-text { margin-top: 8px; font-size: 15px; color: var(--ink-500); }

/* ---------- 关于布局 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split-img { border-radius: 16px; overflow: hidden; box-shadow: var(--shadow); }
.split-img img { width: 100%; height: 100%; object-fit: cover; }
.quote {
  font-family: var(--serif); font-size: clamp(20px, 2.6vw, 27px); line-height: 1.75;
  color: var(--navy-900); border-left: 3px solid var(--sea-400); padding-left: 26px;
}

/* ---------- 常见问题 ---------- */
.faq { max-width: 820px; margin: 0 auto; }
.faq details {
  border: 1px solid var(--line); border-radius: 12px; background: #fff;
  padding: 20px 24px; margin-bottom: 14px; transition: .25s;
}
.faq details[open] { border-color: var(--sea-400); box-shadow: var(--shadow); }
.faq summary { cursor: pointer; font-weight: 600; color: var(--navy-900); list-style: none; position: relative; padding-right: 34px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 22px; color: var(--sea-500); line-height: 1;
}
.faq details[open] summary::after { content: "−"; }
.faq .faq-a { margin-top: 14px; font-size: 15px; color: var(--ink-500); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 54px; align-items: start; }
.info-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.info-item:last-of-type { border-bottom: none; }
.info-icon {
  width: 44px; height: 44px; flex: none; border-radius: 12px; background: var(--sea-100);
  color: var(--sea-500); display: grid; place-items: center;
}
.info-icon svg { width: 21px; height: 21px; }
.info-label { font-size: 13px; color: var(--ink-300); letter-spacing: .08em; }
.info-value { font-size: 17px; color: var(--navy-900); font-weight: 600; }
.info-note { font-size: 13.5px; color: var(--ink-500); }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 40px 38px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--navy-900); }
.field label em { color: #d9534f; font-style: normal; margin-left: 2px; }
.field input, .field select, .field textarea {
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  background: var(--paper-2); transition: .2s; width: 100%;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--sea-400); background: #fff; box-shadow: 0 0 0 3px rgba(47,158,198,.14);
}
.form-tip { font-size: 13px; color: var(--ink-300); margin-top: 14px; }
.form-msg { margin-top: 16px; padding: 13px 16px; border-radius: 10px; font-size: 14.5px; display: none; }
.form-msg.show { display: block; }
.form-msg.ok { background: #e8f6ee; color: #1e7a45; border: 1px solid #bfe5cf; }
.form-msg.err { background: #fdeeee; color: #b23434; border: 1px solid #f2c9c9; }

/* ---------- CTA 带 ---------- */
.cta-band { position: relative; overflow: hidden; color: #fff; }
.cta-band .hero-media img { object-position: 50% 40%; }
.cta-band .hero-media::after { background: linear-gradient(90deg, rgba(4,18,31,.88), rgba(11,37,64,.6)); }
.cta-in { position: relative; padding: 88px 24px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-title { font-family: var(--serif); font-size: clamp(26px, 3.4vw, 38px); font-weight: 700; }
.cta-sub { margin-top: 12px; color: #b8cddd; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy-950); color: #8ba3b6; padding: 70px 0 34px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 44px; padding-bottom: 44px; }
.footer-brand img { height: 46px; width: auto; margin-bottom: 18px; }
.footer-brand p { font-size: 14.5px; max-width: 340px; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: .06em; }
.footer-col li { margin-bottom: 11px; font-size: 14.5px; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 26px;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px;
}
.footer-links { display: inline-flex; align-items: center; gap: 8px; color: rgba(255,255,255,.28); }
.footer-links a { color: #8ba3b6; transition: color .2s ease; }
.footer-links a:hover { color: #fff; }
.footer-filing { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-top: 12px; font-size: 12.5px; }
.footer-filing a { color: #6d8598; transition: color .2s ease; }
.footer-filing a:hover { color: #fff; }
.footer-filing a:empty { display: none; }

/* ---------- 状态提示 ---------- */
.load-state {
  padding: 60px 24px; text-align: center; color: var(--ink-300); font-size: 15px;
  border: 1px dashed var(--line); border-radius: var(--r); background: var(--paper-2);
}
.load-state.err { color: #b23434; border-color: #f2c9c9; background: #fdf7f7; }
.load-state button {
  margin-top: 14px; padding: 9px 22px; border-radius: 999px; border: 1px solid var(--navy-800);
  background: #fff; color: var(--navy-800); cursor: pointer;
}
.load-state button:hover { background: var(--navy-800); color: #fff; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .prod-grid, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(3, 1fr); }
  .split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .modal-card { grid-template-columns: 1fr; }
  .modal-media { max-height: 300px; }
}
@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .hero-in { padding: 96px 24px 110px; }
  /* 顶部小字为长句中文，窄屏收紧字距避免折行成两行 */
  .hero-eyebrow { font-size: 11.5px; letter-spacing: .09em; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 12px; }
  .prod-grid, .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .header-cta { display: none; }
  .nav {
    position: fixed; inset: 74px 0 auto 0; background: #fff; flex-direction: column;
    align-items: stretch; padding: 14px 20px 22px; gap: 4px; border-bottom: 1px solid var(--line);
    transform: translateY(-130%); transition: transform .3s ease; box-shadow: 0 24px 40px -30px rgba(0,0,0,.3);
  }
  body.nav-open .nav { transform: none; }
  .nav a { padding: 13px 8px; border-radius: 8px; font-size: 16px; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .form-grid { grid-template-columns: 1fr; }
  .modal-body { padding: 28px 22px; }
}

.section-lead p { margin: 0 0 15px; }
.section-lead p:last-child { margin-bottom: 0; }
.info-value a { color: #0b2540; text-decoration: none; border-bottom: 1px solid rgba(11,37,64,.25); }
.info-value a:hover { border-bottom-color: #0b2540; }

/* ---------- 影像板块 ---------- */
.video-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.video-grid--3 { grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-grid--1 { grid-template-columns: 1fr; max-width: 680px; }
.video-item { margin: 0; }
.video-item video {
  width: 100%; display: block; aspect-ratio: 16 / 9; object-fit: cover;
  border-radius: var(--r); background: var(--navy-900);
  box-shadow: var(--shadow);
}
.video-item figcaption { margin-top: 12px; font-size: 14.5px; color: var(--ink-500); }
@media (max-width: 1080px) { .video-grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 820px) { .video-grid { grid-template-columns: 1fr; gap: 20px; } }

/* ---------- 主推视频通栏 ---------- */
.film-wrap { display: block; }
.video-item--star { max-width: 960px; margin: 0 auto 36px; }
.video-item--star figcaption { font-size: 16px; text-align: center; }
@media (max-width: 820px) { .video-item--star { margin-bottom: 26px; } }

/* ---------- 二维码卡片 ---------- */
.qr-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; max-width: 440px; }
.qr-card {
  margin: 0; background: var(--paper); border: 1px solid var(--line); border-radius: var(--r);
  padding: 16px 16px 14px; text-align: center;
  box-shadow: 0 12px 30px -20px rgba(7,28,48,.35);
}
.qr-card img { width: 100%; max-width: 172px; margin: 0 auto; border-radius: 8px; }
.qr-card figcaption { margin-top: 10px; display: grid; gap: 2px; }
.qr-card figcaption strong { color: var(--ink-900); font-size: 15.5px; }
.qr-card figcaption span { font-size: 13.5px; color: var(--ink-500); }
@media (max-width: 480px) { .qr-grid { grid-template-columns: 1fr; max-width: 300px; } }

/* ---------- 新品预告：无图占位 ---------- */
.prod-soon {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 8px; text-align: center;
  background:
    radial-gradient(120% 90% at 78% 18%, rgba(47,158,198,.42) 0%, rgba(47,158,198,0) 62%),
    linear-gradient(150deg, var(--navy-900) 0%, var(--navy-700) 62%, var(--navy-600) 100%);
}
.prod-soon em { font-style: normal; font-size: 17px; font-weight: 800; letter-spacing: .22em; color: #fff; }
.prod-soon i { font-style: normal; font-size: 12.5px; letter-spacing: .2em; color: #8fc6e0; }
.prod-soon::after {
  content: ""; position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  width: 46px; height: 2px; background: rgba(143,198,224,.55);
}

/* ---------- 头部操作区 / 语言切换 ---------- */
.header-tail { display: flex; align-items: center; gap: 16px; }
.lang-switch {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; letter-spacing: .04em; white-space: nowrap;
}
.lang-switch .lang-opt { color: var(--ink-300); font-weight: 700; transition: .2s ease; }
.lang-switch .lang-opt:hover { color: var(--sea-500); }
.lang-switch .lang-opt.active { color: var(--navy-900); }
.lang-switch .lang-sep { color: var(--line); font-size: 11px; }
.lang-switch--footer .lang-opt { color: #6d8598; }
.lang-switch--footer .lang-opt:hover { color: #fff; }
.lang-switch--footer .lang-opt.active { color: #fff; }
.lang-switch--footer .lang-sep { color: rgba(255,255,255,.2); }

/* 英文排版微调：首屏小字原为全大写 + 宽字距，英文长句需收紧 */
html[data-lang="en"] .hero-eyebrow {
  text-transform: none; letter-spacing: .05em; font-size: 13px; font-weight: 600;
}
html[data-lang="en"] .nav a { letter-spacing: 0; }
html[data-lang="en"] .section-lead { line-height: 1.8; }
html[data-lang="en"] .step-title, html[data-lang="en"] .card-title { line-height: 1.45; }

@media (max-width: 720px) {
  .header-in { justify-content: flex-start; }
  .header-tail { margin-left: auto; gap: 12px; }
  html[data-lang="en"] .hero-eyebrow { letter-spacing: .02em; font-size: 12.5px; }
  html[data-lang="en"] .brand-text { font-size: 16px; letter-spacing: .04em; }
}
@media (max-width: 430px) {
  html[data-lang="en"] .brand-text { display: none; }
}

/* ---------- 赛事影像（预留视频窗口） ---------- */
.media-videos-head { margin: 58px 0 26px; }
.media-videos-head h3 {
  font-family: var(--serif); font-size: clamp(22px, 2.4vw, 28px); font-weight: 700;
  color: var(--navy-900); margin: 0 0 10px;
}
.media-videos-head p { margin: 0; color: var(--ink-500); font-size: 15px; }
.section--dark .media-videos-head h3 { color: #fff; }
.section--dark .media-videos-head p { color: #a9c3d6; }


/* ---------- 法务页（隐私政策 / 使用条款）与 404 ---------- */
.legal-hero {
  background:
    radial-gradient(120% 100% at 82% 0%, rgba(47,158,198,.30) 0%, rgba(47,158,198,0) 58%),
    linear-gradient(150deg, var(--navy-950) 0%, var(--navy-800) 100%);
  color: #fff; padding: 96px 0 60px;
}
.legal-hero .eyebrow { color: #6fc0dd; }
.legal-hero h1 { font-family: var(--serif); font-size: clamp(28px, 3.6vw, 42px); font-weight: 700; color: #fff; margin: 12px 0 12px; }
.legal-hero p { color: #9db6c9; font-size: 14.5px; }
.legal-wrap { max-width: 860px; }
.legal-wrap h2 { font-family: var(--serif); font-size: 19px; font-weight: 700; color: var(--navy-900); margin: 38px 0 10px; }
.legal-wrap h2:first-child { margin-top: 0; }
.legal-wrap p { font-size: 15px; color: var(--ink-700); margin-bottom: 12px; }
.legal-wrap ul { margin: 0 0 14px; padding-left: 2px; }
.legal-wrap li { position: relative; padding-left: 18px; font-size: 15px; color: var(--ink-700); margin-bottom: 8px; }
.legal-wrap li::before {
  content: ""; position: absolute; left: 0; top: 12px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--sea-400);
}
.legal-wrap strong { color: var(--navy-900); }
.legal-note {
  margin-top: 34px; padding: 18px 20px; border-radius: var(--r);
  background: var(--paper-2); border: 1px solid var(--line); font-size: 14px; color: var(--ink-500);
}
.legal-back {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 26px;
  color: var(--sea-500); font-weight: 700; font-size: 14.5px;
}
.legal-back:hover { color: var(--navy-900); }
/* 语言区块：无 JS 时默认显示中文 */
.lang-en { display: none; }
html[data-lang="en"] .lang-en { display: block; }
html[data-lang="en"] .lang-zh { display: none; }

/* ---------- 404 ---------- */
.nf-box { max-width: 620px; padding: 20px 0 8px; }
.nf-box h1 { font-family: var(--serif); font-size: clamp(30px, 4.4vw, 52px); font-weight: 700; color: var(--navy-900); margin-bottom: 14px; }
.nf-box p { font-size: 16px; color: var(--ink-500); margin-bottom: 26px; }
.nf-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.nf-code { font-family: var(--serif); font-size: 13px; letter-spacing: .3em; color: var(--sea-400); font-weight: 700; }

/* ---------- 产品角标与首页主推船型 ---------- */
.prod-badge {
  position: absolute; right: 16px; top: 16px; padding: 6px 14px; border-radius: 999px;
  background: linear-gradient(135deg, var(--sea-400), var(--sea-500));
  color: #fff; font-size: 12.5px; font-weight: 700; letter-spacing: .06em;
  box-shadow: 0 4px 14px rgba(29,127,168,.35);
}
.star-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 26px; align-items: stretch; }
.star-card {
  display: flex; flex-direction: column; text-align: left; padding: 0; font: inherit;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; cursor: pointer; transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.star-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.star-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--navy-900); }
.star-card--lead .star-media { aspect-ratio: 16 / 10; }
.star-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.star-card:hover .star-media img { transform: scale(1.05); }
.star-body { padding: 26px 28px 28px; display: flex; flex-direction: column; flex: 1; }
.star-hl { margin: 14px 0 0; padding: 0; list-style: none; }
.star-hl li {
  position: relative; padding-left: 20px; font-size: 14.5px; color: var(--ink-500);
  margin-bottom: 8px; line-height: 1.55;
}
.star-hl li::before {
  content: ""; position: absolute; left: 2px; top: 10px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--sea-400);
}
.star-body .prod-foot { margin-top: auto; padding-top: 20px; }
@media (max-width: 1080px) { .star-grid { grid-template-columns: 1fr; } }