/* ========== 远诗科技官网 · 全局样式 ========== */
:root {
  --primary: #165dff;
  --primary-dark: #0b2a5b;
  --primary-deep: #081d42;
  --accent: #00c8c8;
  --orange: #ff7d00;
  --text: #1d2129;
  --text-2: #4e5969;
  --text-3: #86909c;
  --bg: #f6f8fb;
  --white: #fff;
  --border: #e5e8ef;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(11, 42, 91, 0.08);
  --shadow-lg: 0 18px 50px rgba(11, 42, 91, 0.14);
  --grad: linear-gradient(120deg, #165dff 0%, #00c8c8 100%);
  --grad-dark: linear-gradient(135deg, #081d42 0%, #0b2a5b 55%, #123a7d 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { width: 1200px; max-width: 92%; margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.site-header.scrolled { border-color: var(--border); box-shadow: 0 4px 20px rgba(11,42,91,.06); }
.nav-wrap { display: flex; align-items: center; gap: 12px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--primary-dark); margin-right: auto; }
.logo-img { height: 40px; width: auto; display: block; }
.site-footer .logo-img { height: 46px; }
.nav-menu { display: flex; align-items: center; gap: 2px; flex-wrap: nowrap; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  display: block; padding: 10px 12px; font-size: 14px; color: var(--text-2);
  border-radius: 8px; transition: color .2s, background .2s; white-space: nowrap;
}
.nav-menu > li > a:hover, .nav-menu > li > a.active { color: var(--primary); background: rgba(22,93,255,.06); }
.nav-menu .caret { font-size: 10px; margin-left: 4px; opacity: .6; }
.nav-sub {
  position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 220px; background: #fff; border-radius: 12px; box-shadow: var(--shadow-lg);
  border: 1px solid var(--border); padding: 8px; opacity: 0; visibility: hidden;
  transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-menu > li:hover .nav-sub { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-sub a { display: block; padding: 10px 14px; border-radius: 8px; font-size: 14px; color: var(--text-2); }
.nav-sub a:hover { background: var(--bg); color: var(--primary); }
.nav-sub a strong { display: block; color: var(--text); font-size: 14px; }
.nav-sub a span { font-size: 12px; color: var(--text-3); }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.nav-actions-in-menu { display: none; }
.nav-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 4px 16px !important; color: #fff !important;
  background: var(--grad) !important; border-radius: 999px !important; font-size: 14px;
  box-shadow: 0 6px 16px rgba(22,93,255,.28); white-space: nowrap; border: 0 !important;
}
.nav-cta-admin {
  color: var(--primary-dark) !important;
  background: #fff !important;
  border: 1px solid rgba(22, 93, 255, .5) !important;
  box-shadow: none !important;
}
.nav-cta-admin:hover,
a.nav-cta-admin:hover {
  background: rgba(22,93,255,.1) !important;
  border-color: var(--primary) !important;
  color: var(--primary-dark) !important;
}
.nav-toggle { display: none; background: none; border: 0; font-size: 24px; color: var(--primary-dark); cursor: pointer; margin-left: auto; }
.nav-mask { display: none; }

/* ---------- 通用区块 ---------- */
.section { padding: 96px 0; }
.section.alt { background: var(--bg); }
.section.dark { background: var(--grad-dark); color: #fff; }
.sec-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.sec-kicker {
  display: inline-block; font-size: 13px; letter-spacing: 2px; font-weight: 600;
  color: var(--primary); text-transform: uppercase; margin-bottom: 12px;
}
.sec-kicker::before, .sec-kicker::after { content: "—"; margin: 0 10px; opacity: .4; }
.sec-title { font-size: 36px; font-weight: 700; color: var(--text); line-height: 1.3; }
.section.dark .sec-title { color: #fff; }
.sec-desc { margin-top: 14px; color: var(--text-2); font-size: 16px; }
.section.dark .sec-desc { color: rgba(255,255,255,.75); }

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative; padding: 190px 0 130px; color: #fff;
  background: var(--grad-dark) center/cover no-repeat;
  background-image: linear-gradient(180deg, rgba(7,18,42,.72), rgba(7,18,42,.78)), url("../assets/heroes/home.jpg");
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(600px 400px at 85% 20%, rgba(0,200,200,.18), transparent 60%),
    radial-gradient(700px 500px at 10% 90%, rgba(22,93,255,.22), transparent 60%);
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .1;
  background-image: linear-gradient(rgba(255,255,255,.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.35) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(800px 500px at 50% 40%, #000 30%, transparent 75%);
}
.hero-inner { position: relative; z-index: 1; text-align: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 18px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px;
  font-size: 13px; letter-spacing: 1px; color: rgba(255,255,255,.85); margin-bottom: 28px;
  background: rgba(255,255,255,.06);
}
.hero h1 { font-size: 56px; font-weight: 800; letter-spacing: 4px; line-height: 1.25; }
.hero h1 .hl { background: linear-gradient(90deg,#6ee7ff,#7c9cff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin: 22px auto 0; max-width: 640px; font-size: 19px; letter-spacing: 2px; color: rgba(255,255,255,.78); }
.hero-actions { margin-top: 44px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 34px; border-radius: 999px; font-size: 16px; font-weight: 600;
  transition: box-shadow .2s, background .2s; cursor: pointer; border: 0;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 26px rgba(22,93,255,.4); }
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(255,255,255,.2), 0 0 28px rgba(22,93,255,.55); }
.btn-ghost { border: 1px solid rgba(255,255,255,.4); color: #fff; background: rgba(255,255,255,.04); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { box-shadow: 0 0 0 1px rgba(22,93,255,.15), 0 0 28px rgba(22,93,255,.28); }
.hero-stats {
  position: relative; z-index: 1; margin-top: 90px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.hero-stat {
  text-align: center; padding: 28px 12px; border-radius: var(--radius);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(6px);
}
.hero-stat .num { font-size: 40px; font-weight: 800; color: #fff; }
.hero-stat .num em { font-style: normal; font-size: 18px; color: var(--accent); margin-left: 2px; }
.hero-stat .lbl { margin-top: 6px; font-size: 14px; color: rgba(255,255,255,.7); }

/* ---------- 页面内 Hero（子页） ---------- */
.page-hero {
  position: relative; padding: 160px 0 90px; color: #fff;
  background-color: #07122a;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(105deg, rgba(7,18,42,.92) 0%, rgba(7,18,42,.78) 42%, rgba(7,18,42,.45) 100%),
    radial-gradient(500px 320px at 85% 30%, rgba(0,200,200,.16), transparent 60%);
}
.page-hero--benefits { background-image: url("../assets/heroes/benefits.jpg"); }
.page-hero--eleme { background-image: url("../assets/heroes/eleme.jpg"); background-position: center 40%; }
.page-hero--marketing { background-image: url("../assets/heroes/marketing.jpg"); }
.page-hero--procurement { background-image: url("../assets/heroes/procurement.jpg"); }
.page-hero--about { background-image: url("../assets/heroes/about.jpg"); background-position: center 30%; }
.page-hero--partners { background-image: url("../assets/heroes/partners.jpg"); }
.page-hero--contact { background-image: url("../assets/heroes/contact.jpg"); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero .crumb { font-size: 13px; color: rgba(255,255,255,.65); margin-bottom: 18px; letter-spacing: 1px; }
.page-hero h1 { font-size: 42px; font-weight: 800; letter-spacing: 2px; text-shadow: 0 2px 24px rgba(0,0,0,.25); }
.page-hero .en { margin-top: 8px; font-size: 14px; letter-spacing: 3px; text-transform: uppercase; color: rgba(255,255,255,.6); }
.page-hero .lead { margin-top: 20px; max-width: 720px; font-size: 17px; color: rgba(255,255,255,.85); }

/* ---------- 卡片/网格 ---------- */
.grid { display: grid; gap: 24px; }
.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(--border); border-radius: var(--radius);
  padding: 30px; color: var(--text);
  transition: box-shadow .25s, border-color .25s;
}
.section.dark .card { color: var(--text); }
.card:hover {
  border-color: rgba(22,93,255,.35);
  box-shadow: 0 0 0 1px rgba(22,93,255,.12), 0 10px 36px rgba(22,93,255,.22);
}
.card-icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: 18px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(22,93,255,.1); color: var(--primary); flex-shrink: 0;
}
.card-icon svg { width: 24px; height: 24px; display: block; }
.inline-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.15em; height: 1.15em; margin-right: .35em; vertical-align: -0.15em;
  color: var(--primary);
}
.inline-icon svg { width: 100%; height: 100%; display: block; }
.card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--text); }
.card p { color: var(--text-2); font-size: 14.5px; }

/* 生态卡片（充实版） */
.eco-card {
  position: relative; overflow: hidden;
  display: flex; flex-direction: column; min-height: 240px;
  padding: 28px; background: #fff; color: var(--text);
  border: 1px solid rgba(255,255,255,.12); border-radius: var(--radius);
  transition: box-shadow .25s, border-color .25s;
}
.eco-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--grad); opacity: 0; transition: opacity .25s;
}
.eco-card:hover {
  border-color: rgba(22,93,255,.35);
  box-shadow: 0 0 0 1px rgba(22,93,255,.14), 0 12px 40px rgba(22,93,255,.28);
}
.eco-card:hover::before { opacity: 1; }
.eco-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.eco-card .card-icon {
  width: 52px; height: 52px; border-radius: 14px; margin-bottom: 0;
  background: linear-gradient(135deg, rgba(22,93,255,.12), rgba(0,200,200,.12));
  color: var(--primary);
}
.eco-card .card-icon svg { width: 26px; height: 26px; }
.eco-idx {
  font-size: 28px; font-weight: 800; color: rgba(22,93,255,.1); line-height: 1;
  letter-spacing: -1px;
}
.eco-card h3 { font-size: 20px; font-weight: 700; margin: 0 0 10px; color: var(--text); }
.eco-card .eco-desc { color: var(--text-2); font-size: 14px; line-height: 1.7; flex: 1; margin-bottom: 18px; }
.eco-metrics { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.eco-metric {
  display: inline-flex; align-items: baseline; gap: 4px;
  padding: 6px 12px; border-radius: 8px;
  background: var(--bg); border: 1px solid var(--border);
  font-size: 12px; color: var(--text-3);
}
.eco-metric strong {
  font-size: 15px; font-weight: 700; color: var(--primary-dark);
}
.card ul { margin-top: 8px; }
.card ul li { position: relative; padding-left: 16px; color: var(--text-2); font-size: 14.5px; margin-top: 6px; }
.card ul li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }

/* 方案入口卡（首页） */
.sol-card { position: relative; overflow: hidden; padding: 36px 30px; border-radius: var(--radius); color: #fff; min-height: 250px; display: flex; flex-direction: column; justify-content: flex-start; transition: box-shadow .25s; }
.sol-card:hover { box-shadow: 0 0 0 1px rgba(255,255,255,.18), 0 12px 40px rgba(22,93,255,.45); }
.sol-card .idx { position: absolute; top: 22px; right: 26px; font-size: 46px; font-weight: 800; opacity: .18; }
.sol-card h3 { font-size: 22px; font-weight: 700; }
.sol-card .en { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; opacity: .7; margin: 4px 0 12px; }
.sol-card p { font-size: 14px; opacity: .88; }
.sol-card .more { margin-top: auto; padding-top: 16px; font-size: 14px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.sol-1 { background: linear-gradient(135deg,#165dff,#3d7bff); }
.sol-2 { background: linear-gradient(135deg,#0b8a8f,#00c8c8); }
.sol-3 { background: linear-gradient(135deg,#722ed1,#a45cff); }
.sol-4 { background: linear-gradient(135deg,#e8590c,#ff922b); }

/* ---------- 数字带 ---------- */
.stats-band { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.stat-item { text-align: center; padding: 34px 10px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); }
.stat-item .num { font-size: 42px; font-weight: 800; color: var(--primary-dark); }
.stat-item .num em { font-style: normal; font-size: 18px; color: var(--primary); }
.stat-item .lbl { color: var(--text-2); margin-top: 6px; font-size: 14px; }

/* ---------- 图文分栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split .media {
  position: relative; overflow: hidden;
  border-radius: 20px; min-height: 380px;
  background-color: #07122a;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  box-shadow: 0 24px 56px rgba(11,42,91,.18);
  border: 1px solid rgba(255,255,255,.08);
}
.split .media::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(165deg, rgba(7,18,42,.28) 0%, rgba(7,18,42,.45) 48%, rgba(7,18,42,.78) 100%),
    radial-gradient(520px 280px at 80% 15%, rgba(0,200,200,.18), transparent 60%),
    radial-gradient(420px 260px at 10% 90%, rgba(22,93,255,.22), transparent 55%);
}
.split .media::after {
  content: attr(data-label);
  position: absolute; left: 22px; bottom: 22px; z-index: 1;
  display: inline-flex; align-items: center;
  max-width: calc(100% - 44px);
  padding: 12px 18px; border-radius: 12px;
  color: #fff; font-size: 15px; font-weight: 600; letter-spacing: 1.5px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 10px 28px rgba(0,0,0,.22);
}
.split .media--about { background-image: url("../assets/heroes/about.jpg"); background-position: center 28%; }
.split .media--benefits { background-image: url("../assets/heroes/benefits.jpg"); }
.split .media--marketing { background-image: url("../assets/heroes/marketing.jpg"); }
.split .media--vip { background-image: url("../assets/heroes/partners.jpg"); background-position: center 35%; }
.split .media--contact { background-image: url("../assets/heroes/contact.jpg"); }
.split h2 { font-size: 32px; font-weight: 700; line-height: 1.35; margin-bottom: 18px; }
.split .lead { color: var(--text-2); margin-bottom: 22px; }
.check-list li { position: relative; padding-left: 30px; margin-bottom: 14px; color: var(--text-2); }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 1px;
  width: 20px; height: 20px; border-radius: 50%; background: rgba(22,93,255,.1);
  color: var(--primary); font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.check-list li strong { color: var(--text); }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: step; }
.step-item { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 20px; text-align: center; }
.step-item::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%; margin-bottom: 14px;
  background: var(--grad); color: #fff; font-weight: 700; font-size: 15px;
}
.step-item h4 { font-size: 16px; margin-bottom: 8px; }
.step-item p { font-size: 13px; color: var(--text-3); }
.steps-3 { grid-template-columns: repeat(3, 1fr); }

/* 横向流程条（用餐前/中/后） */
.flow-band { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.flow-col { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.flow-col h3 { display: flex; align-items: center; gap: 10px; font-size: 18px; margin-bottom: 18px; }
.flow-col h3 .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--grad); }
.flow-col ol {
  counter-reset: f;
  list-style: none;
  margin: 0;
  padding: 0;
}
.flow-col ol li {
  position: relative; padding: 10px 0 10px 34px; color: var(--text-2); font-size: 14.5px;
  border-left: 1px dashed var(--border); margin-left: 8px;
}
.flow-col ol li::before {
  counter-increment: f; content: counter(f);
  position: absolute; left: -11px; top: 10px;
  width: 22px; height: 22px; border-radius: 50%;
  background: #fff; border: 1px solid var(--primary); color: var(--primary);
  font-size: 12px; display: flex; align-items: center; justify-content: center;
}

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; }
.table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.table th { background: var(--bg); text-align: left; padding: 14px 18px; font-weight: 600; color: var(--text); white-space: nowrap; }
.table td { padding: 14px 18px; border-top: 1px solid var(--border); color: var(--text-2); }
.table tr:hover td { background: rgba(22,93,255,.03); }

/* ---------- 标签/徽章 ---------- */
.tag-row { display: flex; flex-wrap: wrap; gap: 10px; }
.pill {
  padding: 8px 18px; border-radius: 999px; font-size: 14px;
  background: #fff; border: 1px solid var(--border); color: var(--text-2);
  transition: all .2s;
}
.pill:hover {
  border-color: var(--primary); color: var(--primary);
  box-shadow: 0 0 0 1px rgba(22,93,255,.12), 0 0 20px rgba(22,93,255,.2);
}

/* ---------- CTA ---------- */
.cta-band { position: relative; border-radius: 20px; overflow: hidden; padding: 70px 60px; background: var(--grad-dark); color: #fff; text-align: center; }
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(500px 300px at 80% 10%, rgba(0,200,200,.25), transparent 60%); }
.cta-band h2 { position: relative; font-size: 32px; margin-bottom: 14px; }
.cta-band p { position: relative; color: rgba(255,255,255,.75); margin-bottom: 32px; }
.cta-band .btn { position: relative; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--primary-deep); color: rgba(255,255,255,.72); padding: 70px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr auto auto auto auto;
  column-gap: 40px;
  row-gap: 40px;
  padding-bottom: 50px;
  align-items: start;
}
.footer-brand { max-width: 320px; }
.footer-brand .logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 13.5px; line-height: 1.9; color: rgba(255,255,255,.55); }
/* 品牌占第 1 列，中间 1fr 留白，菜单/联系方式靠右 */
.footer-grid > .footer-col:nth-child(2) { grid-column: 3; }
.footer-grid > .footer-col:nth-child(3) { grid-column: 4; }
.footer-grid > .footer-col:nth-child(4) { grid-column: 5; }
.footer-grid > .footer-col:nth-child(5) { grid-column: 6; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 18px; font-weight: 600; }
.footer-col a { display: block; font-size: 13.5px; margin-bottom: 10px; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-contact li { font-size: 13.5px; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.6); }
.footer-contact li .inline-icon { flex: 0 0 auto; }
.footer-contact a {
  display: inline; margin: 0; color: inherit;
}
.footer-contact a:hover { color: var(--accent); }
.footer-phone-text {
  display: inline-flex; flex-wrap: wrap; align-items: baseline; column-gap: 6px; row-gap: 2px;
  min-width: 0; line-height: 1.45;
}
.footer-phone-text a {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.footer-hours { white-space: nowrap; opacity: .85; }
.site-footer .inline-icon { color: var(--accent); margin-right: 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0; font-size: 12.5px; color: rgba(255,255,255,.4); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---------- 动效 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; } .reveal-d2 { transition-delay: .16s; } .reveal-d3 { transition-delay: .24s; }
/* 已展示过：固定可见，回滚不再隐藏/重播 */
.reveal.reveal-done,
.reveal.reveal-done.in {
  opacity: 1;
  transform: none;
  transition: none !important;
  transition-delay: 0s !important;
}

/* ---------- Logo 墙 ---------- */
.logo-wall { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.logo-cell {
  height: 96px; border: 1px solid var(--border); border-radius: 10px; background: #fff;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2); font-weight: 600; font-size: 14px; text-align: center; padding: 16px 14px;
  transition: box-shadow .2s, border-color .2s;
}
.logo-cell img {
  max-width: 86%; max-height: 56px; width: auto; height: auto;
  object-fit: contain; display: block;
}
.logo-cell:hover {
  border-color: rgba(22,93,255,.35);
  box-shadow: 0 0 0 1px rgba(22,93,255,.12), 0 0 22px rgba(22,93,255,.2);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > .footer-col:nth-child(n) { grid-column: auto; }
  .footer-brand { max-width: none; grid-column: 1 / -1; }
  .footer-grid > .footer-col.footer-contact {
    grid-column: 1 / -1;
  }
  .logo-wall { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { padding: 150px 0 90px; }
  .hero h1 { font-size: 34px; letter-spacing: 2px; }
  .hero-sub { font-size: 16px; }
  .sec-title { font-size: 26px; }
  .grid-2, .grid-3, .grid-4, .split, .flow-band, .steps, .steps-3 { grid-template-columns: 1fr; }
  .split { gap: 32px; }
  .split .media { min-height: 220px; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .cta-band { padding: 48px 24px; }
  .cta-band h2 { font-size: 24px; }
  .logo-wall { grid-template-columns: repeat(2, 1fr); }
  .nav-menu {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 12px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg);
    /* 常规手机高度可完整展示菜单，极矮屏幕才在菜单内滚动 */
    max-height: calc(100dvh - 68px);
    overflow-x: hidden; overflow-y: auto; z-index: 102;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    overscroll-behavior: contain;
  }
  .nav-menu::-webkit-scrollbar { display: none; width: 0; height: 0; }
  .nav-menu.open { display: flex; }
  .nav-mask {
    display: none;
    position: fixed; inset: 0; z-index: 90;
    background: rgba(7, 18, 42, .58);
    -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px);
  }
  .nav-mask:not([hidden]) { display: block; }
  body.nav-open { overflow: hidden; height: 100%; }
  body.nav-open .site-header { z-index: 100; }
  .nav-menu > li > a { padding: 13px 16px; }
  /* 移动端子菜单：直接展开/收起，去掉桌面端 translateX 滑动 */
  .nav-sub,
  .nav-menu > li:hover .nav-sub {
    position: static; left: auto; top: auto;
    transform: none !important; transition: none;
    opacity: 1; visibility: visible;
    box-shadow: none; border: 0; border-radius: 0;
    padding: 0 0 4px 12px; min-width: 0; width: 100%;
    display: none; background: transparent;
  }
  .nav-menu > li.has-sub.open > .nav-sub { display: block; }
  .nav-menu > li.has-sub > a .caret { display: inline-block; transition: transform .15s; }
  .nav-menu > li.has-sub.open > a .caret { transform: rotate(180deg); }
  .nav-actions { display: none; }
  .nav-actions-in-menu {
    display: flex; flex-direction: row; align-items: center; gap: 10px;
    margin-top: 8px; padding-top: 8px;
  }
  .nav-actions-in-menu .nav-cta {
    flex: 1; width: auto; text-align: center; margin: 0 !important;
    justify-content: center;
  }
  .nav-toggle { display: block; }
}

/* ---------- 联系页表单 ---------- */
.contact-form { max-width: 560px; }
.contact-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.contact-field { margin-bottom: 16px; }
.contact-field label {
  display: block;
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--text-2);
}
.contact-field input,
.contact-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.contact-field textarea { resize: vertical; min-height: 110px; }
.contact-field input:focus,
.contact-field textarea:focus {
  outline: none;
  border-color: rgba(22, 93, 255, .55);
  box-shadow: 0 0 0 3px rgba(22, 93, 255, .12);
}
.contact-topic-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.contact-topic-head label { margin-bottom: 0; }
.contact-topic-hint {
  font-size: 12px;
  color: var(--text-3);
}
.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.topic-chip {
  position: relative;
  margin: 0 !important;
  cursor: pointer;
  user-select: none;
}
.topic-chip input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.topic-chip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.3;
  transition: border-color .2s, background .2s, color .2s, box-shadow .2s;
}
.topic-chip span::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 1.5px solid #c9ced8;
  border-radius: 4px;
  background: #fff;
  flex-shrink: 0;
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.topic-chip:hover span {
  border-color: rgba(22, 93, 255, .35);
  color: var(--primary-dark);
}
.topic-chip input:checked + span {
  border-color: rgba(22, 93, 255, .55);
  background: rgba(22, 93, 255, .06);
  color: var(--primary-dark);
  box-shadow: 0 0 0 1px rgba(22, 93, 255, .08);
}
.topic-chip input:checked + span::before {
  border-color: var(--primary);
  background: var(--primary);
  box-shadow: inset 0 0 0 2px #fff;
}
.topic-chip input:focus-visible + span {
  box-shadow: 0 0 0 3px rgba(22, 93, 255, .16);
}
.contact-field-error {
  margin-top: 8px;
  font-size: 12.5px;
  color: #e5484d;
}
.contact-submit {
  width: 100%;
  justify-content: center;
  margin-top: 4px;
}
.contact-form-tip {
  margin-top: 12px;
  font-size: 13px;
  color: var(--primary);
}
@media (max-width: 640px) {
  .contact-form-row { grid-template-columns: 1fr; }
  .topic-chip span { width: 100%; }
  .topic-chips { display: grid; grid-template-columns: 1fr 1fr; }
}