/* ============================================================
   广东昊东科技有限公司 · 官网
   2026-11-05 · 深蓝 + 暖橙，图文并茂，响应式
   ============================================================ */

:root {
  --ink: #16202e;
  --ink-2: #4b5b6d;
  --ink-3: #7d8b9c;
  --line: #e4e9f0;
  --bg: #ffffff;
  --bg-2: #f6f8fb;
  --brand: #0a2e5c;
  --brand-2: #0f4c9c;
  --brand-soft: #eaf1fb;
  --accent: #e8760c;
  --accent-2: #c85f00;
  --dark: #08182b;
  --radius: 16px;
  --wrap: 1200px;
  --shadow-s: 0 2px 8px rgba(10, 46, 92, .06);
  --shadow-m: 0 10px 30px rgba(10, 46, 92, .10);
  --shadow-l: 0 24px 60px rgba(8, 24, 43, .18);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
b { font-weight: 700; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 10px; font-size: 15px; font-weight: 700;
  border: 1px solid transparent; cursor: pointer; transition: all .22s var(--ease);
  white-space: nowrap; line-height: 1.2;
}
.btn-sm { padding: 9px 18px; font-size: 13.5px; border-radius: 8px; }
.btn-full { width: 100%; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 6px 18px rgba(10, 46, 92, .22); }
.btn-primary:hover { background: var(--brand-2); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(10, 46, 92, .28); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 8px 24px rgba(232, 118, 12, .30); }
.btn-accent:hover { background: var(--accent-2); transform: translateY(-2px); }
.btn-ghost { background: rgba(255, 255, 255, .1); color: #fff; border-color: rgba(255, 255, 255, .42); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255, 255, 255, .2); border-color: #fff; }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .38); }
.btn-ghost-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }

/* ---------- 顶部导航 ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav-in { display: flex; align-items: center; gap: 30px; height: 76px; }
.nav.scrolled { background: rgba(255, 255, 255, .96); backdrop-filter: saturate(180%) blur(14px); border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(10, 46, 92, .06); }

.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 11px; flex: 0 0 auto;
  background: linear-gradient(140deg, var(--brand-2), var(--brand));
  color: #fff; font-weight: 800; font-size: 15px; letter-spacing: .5px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(10, 46, 92, .28);
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-txt b { font-size: 16.5px; font-weight: 800; color: #fff; transition: color .3s; letter-spacing: .5px; }
.brand-txt i { font-size: 9.5px; font-style: normal; color: rgba(255, 255, 255, .62); letter-spacing: 1.4px; transition: color .3s; }
.nav.scrolled .brand-txt b { color: var(--ink); }
.nav.scrolled .brand-txt i { color: var(--ink-3); }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  padding: 9px 14px; border-radius: 8px; font-size: 14.5px; font-weight: 600;
  color: rgba(255, 255, 255, .86); transition: all .18s;
}
.nav-links a:hover, .nav-links a.on { color: #fff; background: rgba(255, 255, 255, .13); }
.nav.scrolled .nav-links a { color: var(--ink-2); }
.nav.scrolled .nav-links a:hover, .nav.scrolled .nav-links a.on { color: var(--brand); background: var(--brand-soft); }

.nav-cta { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.nav-tel { font-size: 15px; font-weight: 800; color: #fff; letter-spacing: .4px; transition: color .3s; font-variant-numeric: tabular-nums; }
.nav.scrolled .nav-tel { color: var(--brand); }
.burger { display: none; width: 40px; height: 40px; border: none; background: none; cursor: pointer; padding: 10px 8px; }
.burger span { display: block; height: 2px; background: #fff; border-radius: 2px; margin: 4px 0; transition: .25s; }
.nav.scrolled .burger span { background: var(--ink); }

/* ---------- Hero（半屏 + 背景轮播）---------- */
.hero {
  position: relative; display: flex; flex-direction: column; justify-content: center;
  overflow: hidden; background: var(--dark);
  min-height: max(440px, min(54svh, 580px));
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1s var(--ease); }
.hero-slide.is-on { opacity: 1; }
.hero-slide img {
  width: 100%; height: 100%; object-fit: cover; object-position: center 44%;
  transform: scale(1.04);
}
.js .hero-slide.is-on img { animation: kenBurns 22s ease-in-out infinite alternate; }
.hero-slide-cap {
  position: absolute; left: 28px; bottom: 18px; z-index: 2;
  font-size: 12px; font-weight: 600; color: rgba(255, 255, 255, .72); letter-spacing: .3px;
  padding-left: 12px; border-left: 2px solid var(--accent);
}
.hero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(102deg, rgba(4, 14, 28, .95) 0%, rgba(4, 14, 28, .82) 42%, rgba(4, 14, 28, .42) 74%, rgba(4, 14, 28, .55) 100%),
    radial-gradient(70% 60% at 78% 20%, rgba(15, 76, 156, .34), transparent 70%);
}
.hero-in { position: relative; z-index: 2; padding-top: 96px; padding-bottom: 54px; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 700; letter-spacing: 2.4px; color: rgba(255, 255, 255, .82);
  text-transform: uppercase; margin-bottom: 16px;
}
.hero-kicker span { width: 34px; height: 2px; background: var(--accent); display: inline-block; }
.hero h1 {
  font-size: clamp(28px, 3.4vw, 46px); line-height: 1.22; font-weight: 800; color: #fff;
  margin: 0 0 20px; letter-spacing: -.4px; max-width: 18em;
}
.hero h1 .dot { color: var(--accent); margin: 0 6px; }
.hero-sub {
  font-size: clamp(14px, 1.05vw, 15.5px); line-height: 1.85; color: rgba(255, 255, 255, .84);
  max-width: 860px; margin: 0 0 28px;
}
.hero-sub b { color: #fff; font-weight: 700; }
.hero-acts { display: flex; gap: 14px; flex-wrap: wrap; }

/* 关键数据带（脱离 hero，独立成条） */
.facts-band { background: #08182b; border-top: 1px solid rgba(255, 255, 255, .08); }
.hero-facts-in { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.hero-facts-in > div { padding: 20px 20px 20px 0; position: relative; }
.hero-facts-in > div + div { padding-left: 30px; border-left: 1px solid rgba(255, 255, 255, .12); }
.hero-facts-in b { display: block; font-size: 32px; font-weight: 800; color: #fff; line-height: 1.15; font-variant-numeric: tabular-nums; letter-spacing: -.5px; white-space: nowrap; }
.hero-facts-in b .plus, .hero-facts-in b .unit { display: inline; font-size: 18px; font-weight: 700; color: var(--accent); margin-left: 2px; }
/* 只作用于标签文字，不能命中 <b> 内的 + / ㎡ 单位 */
.hero-facts-in > div > span { display: block; font-size: 12.5px; color: rgba(255, 255, 255, .66); margin-top: 7px; letter-spacing: .3px; }

/* ---------- 通用区块 ---------- */
.sec { padding: 104px 0; position: relative; }
.sec-head { max-width: 860px; margin-bottom: 52px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-kicker {
  font-size: 12px; font-weight: 800; letter-spacing: 2.6px; color: var(--accent);
  text-transform: uppercase; margin-bottom: 14px;
}
.sec-kicker.light { color: #ffb265; }
.sec h2 {
  font-size: clamp(26px, 3vw, 40px); line-height: 1.28; font-weight: 800;
  margin: 0 0 18px; letter-spacing: -.4px; color: var(--ink);
}
.sec-lead { font-size: 16px; line-height: 1.95; color: var(--ink-2); margin: 0; }
.sec-lead.light { color: rgba(255, 255, 255, .8); }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }
.about-text h3 { font-size: 19px; font-weight: 800; margin: 26px 0 12px; color: var(--ink); }
.about-text h3:first-child { margin-top: 0; }
.about-text p { font-size: 15.2px; line-height: 2; color: var(--ink-2); margin: 0 0 14px; }
.ticks { list-style: none; margin: 8px 0 0; padding: 0; }
.ticks li {
  position: relative; padding: 10px 0 10px 30px; font-size: 14.8px; line-height: 1.85; color: var(--ink-2);
  border-top: 1px dashed var(--line);
}
.ticks li:first-child { border-top: none; }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: 10px; width: 20px; height: 20px;
  background: var(--brand-soft); color: var(--brand-2); border-radius: 6px;
  font-size: 12px; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
.ticks li b { color: var(--ink); }

.about-media { display: grid; gap: 14px; }
.about-media figure { margin: 0; position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-m); }
.about-media figure img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.about-media figure:hover img { transform: scale(1.04); }
.about-media .m-main { aspect-ratio: 4 / 3; }
.about-media .m-sub { aspect-ratio: 16 / 9; }
.about-media figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 34px 16px 12px;
  font-size: 12.5px; font-weight: 600; color: #fff;
  background: linear-gradient(180deg, transparent, rgba(6, 18, 34, .82));
}

/* ---------- 工业品贸易 ---------- */
.sec-trade { background: var(--bg-2); }
.trade-stats {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin-bottom: 40px;
}
.ts {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 22px 20px;
  box-shadow: var(--shadow-s);
}
.ts b { display: block; font-size: 30px; font-weight: 800; color: var(--brand); line-height: 1.15; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ts b .unit { display: inline; font-size: 15px; font-weight: 700; color: var(--accent); margin-left: 1px; }
.ts > span { display: block; font-size: 12.8px; color: var(--ink-3); margin-top: 8px; }

.scene-band { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 30px; }
.scene-band figure { margin: 0; position: relative; aspect-ratio: 16 / 10; border-radius: 14px; overflow: hidden; }
.scene-band img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.scene-band figure:hover img { transform: scale(1.05); }
.scene-band figcaption {
  position: absolute; left: 14px; bottom: 12px; font-size: 12.5px; font-weight: 700; color: #fff;
  padding: 4px 11px; border-radius: 99px; background: rgba(6, 18, 34, .62); backdrop-filter: blur(4px);
}
.trade-note {
  font-size: 15px; line-height: 2; color: var(--ink-2); margin: 0;
  padding: 24px 28px; background: #fff; border-left: 4px solid var(--accent); border-radius: 0 14px 14px 0;
  box-shadow: var(--shadow-s);
}

/* ---------- 平台卡 ---------- */
.sec-platforms { background: #fff; }
.pf-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.pf-card {
  border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: #fff;
  box-shadow: var(--shadow-s); transition: transform .3s var(--ease), box-shadow .3s var(--ease);
  display: flex; flex-direction: column;
}
.pf-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-l); }
.pf-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.pf-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ease); }
.pf-card:hover .pf-media img { transform: scale(1.06); }
.pf-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(6, 18, 34, .55)); }
.pf-badge {
  position: absolute; left: 16px; top: 16px; z-index: 2;
  font-size: 12px; font-weight: 800; letter-spacing: .6px; color: #fff;
  padding: 6px 13px; border-radius: 99px; backdrop-filter: blur(6px);
}
.pf-fuliao .pf-badge { background: rgba(192, 57, 43, .88); }
.pf-gongpin .pf-badge { background: rgba(15, 76, 156, .9); }
.pf-body { padding: 26px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.pf-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.pf-head h3 { font-size: 24px; font-weight: 800; margin: 0 0 4px; letter-spacing: -.3px; }
.pf-domain { font-size: 13px; font-weight: 700; color: var(--brand-2); letter-spacing: .4px; }
.pf-num { text-align: right; flex: 0 0 auto; }
.pf-num b { display: block; font-size: 26px; font-weight: 800; color: var(--brand); line-height: 1; font-variant-numeric: tabular-nums; }
.pf-num span { font-size: 11.5px; color: var(--ink-3); }
.pf-desc { font-size: 14.5px; line-height: 1.95; color: var(--ink-2); margin: 0 0 16px; }
.pf-points { list-style: none; margin: 0 0 18px; padding: 0; }
.pf-points li { position: relative; padding: 7px 0 7px 22px; font-size: 13.8px; line-height: 1.8; color: var(--ink-2); }
.pf-points li::before {
  content: ""; position: absolute; left: 4px; top: 15px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--accent);
}
.pf-chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; }
.pf-chips span { font-size: 12px; color: var(--ink-2); background: var(--bg-2); border: 1px solid var(--line); border-radius: 99px; padding: 4px 11px; }
.pf-btn { margin-top: auto; }

/* ---------- 品类矩阵 ---------- */
.cats { margin-top: 60px; padding-top: 48px; border-top: 1px solid var(--line); }
.cats-head { margin-bottom: 24px; }
.cats-head h3 { font-size: 21px; font-weight: 800; margin: 0 0 8px; }
.cats-head p { font-size: 14px; color: var(--ink-3); margin: 0; }
.cats-grid { display: grid; grid-template-columns: repeat(8, 1fr); gap: 12px; }
.cat {
  display: flex; flex-direction: column; align-items: center; gap: 9px;
  padding: 12px 6px 14px; border-radius: 14px; border: 1px solid transparent;
  transition: all .2s var(--ease); text-align: center;
}
.cat:hover { background: var(--bg-2); border-color: var(--line); transform: translateY(-3px); box-shadow: var(--shadow-s); }
.cat img { width: 64px; height: 64px; object-fit: cover; border-radius: 12px; background: #fff; border: 1px solid var(--line); }
.cat span { font-size: 12.8px; font-weight: 600; color: var(--ink-2); }

/* ---------- 服务能力 ---------- */
.caps { margin-top: 60px; padding-top: 48px; border-top: 1px solid var(--line); }
.caps h3 { font-size: 21px; font-weight: 800; margin: 0 0 24px; }
.caps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cap {
  background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 24px 24px 26px;
  position: relative; transition: all .25s var(--ease);
}
.cap:hover { border-color: var(--brand-2); box-shadow: var(--shadow-m); transform: translateY(-3px); }
.cap-i { font-size: 12px; font-weight: 800; color: var(--accent); letter-spacing: 1.6px; }
.cap b { display: block; font-size: 16.5px; font-weight: 800; margin: 10px 0 10px; }
.cap p { font-size: 13.8px; line-height: 1.9; color: var(--ink-2); margin: 0; }

/* ---------- 葵谷（深色区）---------- */
.sec-sub.dark {
  background:
    radial-gradient(60% 50% at 82% 8%, rgba(15, 76, 156, .40), transparent 68%),
    linear-gradient(168deg, #0b1f38 0%, #08182b 46%, #061223 100%);
  color: #fff;
}
.sec-sub.dark h2 { color: #fff; }
.sec-sub .sec-head { max-width: 900px; }
.sec-sub .sec-head .btn { margin-top: 24px; }
.kg-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 12px; }
.kg-card {
  background: rgba(255, 255, 255, .045); border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 18px; overflow: hidden; display: flex; flex-direction: column;
  transition: all .3s var(--ease);
}
.kg-card:hover { background: rgba(255, 255, 255, .075); border-color: rgba(255, 255, 255, .2); transform: translateY(-4px); }
.kg-media { aspect-ratio: 16 / 10; overflow: hidden; }
.kg-media img { width: 100%; height: 100%; object-fit: cover; opacity: .92; transition: all .6s var(--ease); }
.kg-card:hover .kg-media img { opacity: 1; transform: scale(1.05); }
.kg-body { padding: 24px 24px 28px; }
.kg-no { font-size: 12px; font-weight: 800; color: #ffb265; letter-spacing: 2px; }
.kg-body h3 { font-size: 19px; font-weight: 800; margin: 8px 0 6px; color: #fff; }
.kg-tag { font-size: 13px; font-weight: 700; color: #9ec3f0; margin: 0 0 12px; }
.kg-body > p:not(.kg-tag) { font-size: 13.8px; line-height: 1.95; color: rgba(255, 255, 255, .74); margin: 0 0 14px; }
.kg-points { list-style: none; margin: 0; padding: 0; }
.kg-points li { position: relative; padding: 6px 0 6px 18px; font-size: 13px; line-height: 1.8; color: rgba(255, 255, 255, .66); }
.kg-points li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 5px; height: 5px; border-radius: 50%; background: #ffb265; }

.kg-foot {
  margin-top: 44px; padding-top: 34px; border-top: 1px solid rgba(255, 255, 255, .12);
  display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center;
}
.kg-foot-l b { font-size: 19px; font-weight: 800; display: block; margin-bottom: 10px; color: #fff; }
.kg-foot-l p { font-size: 14.2px; line-height: 1.95; color: rgba(255, 255, 255, .72); margin: 0; }
.kg-foot-r { display: grid; gap: 12px; }
.kg-foot-r div { display: flex; justify-content: space-between; gap: 16px; font-size: 13.5px; padding-bottom: 12px; border-bottom: 1px dashed rgba(255, 255, 255, .14); }
.kg-foot-r div:last-child { border-bottom: none; padding-bottom: 0; }
.kg-foot-r span { color: rgba(255, 255, 255, .58); }
.kg-foot-r b { color: #fff; font-weight: 700; }

/* ---------- 合作方式 ---------- */
.coop-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.coop {
  background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 26px 24px 24px;
  display: flex; flex-direction: column; transition: all .25s var(--ease);
}
.coop:hover { border-color: var(--brand-2); box-shadow: var(--shadow-m); transform: translateY(-4px); }
.coop-no { font-size: 12px; font-weight: 800; letter-spacing: 2px; color: var(--accent); }
.coop b { display: block; font-size: 17px; font-weight: 800; margin: 10px 0 10px; }
.coop p { font-size: 13.6px; line-height: 1.9; color: var(--ink-2); margin: 0 0 16px; flex: 1; }
.coop a { font-size: 13.5px; font-weight: 700; color: var(--brand-2); }
.coop a:hover { color: var(--accent); }

/* ---------- 联系我们 ---------- */
.sec-contact { background: var(--bg-2); }
.contact-wrap { display: grid; grid-template-columns: 1fr .82fr; gap: 56px; align-items: start; }
.contact-l .sec-lead { margin-bottom: 32px; }
.contact-list { display: grid; gap: 0; }
.contact-list > div {
  display: grid; grid-template-columns: 72px 1fr; gap: 4px 16px;
  padding: 18px 0; border-top: 1px solid var(--line);
}
.contact-list > div:first-child { border-top: none; padding-top: 0; }
.contact-list span { font-size: 13px; color: var(--ink-3); font-weight: 700; }
.contact-list b { font-size: 15.5px; font-weight: 700; color: var(--ink); line-height: 1.6; }
.contact-list b a { color: var(--brand-2); }
.contact-list b a:hover { color: var(--accent); }
.contact-list i { grid-column: 2; font-size: 12.5px; font-style: normal; color: var(--ink-3); }

.qcard { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 30px 30px 26px; box-shadow: var(--shadow-m); }
.qcard > b { display: block; font-size: 18px; font-weight: 800; }
.qcard > p { font-size: 13px; color: var(--ink-3); margin: 6px 0 22px; }
.qcard form { display: grid; gap: 14px; }
.qcard label { display: grid; gap: 6px; font-size: 12.8px; font-weight: 700; color: var(--ink-2); }
.qcard input, .qcard select, .qcard textarea {
  width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px;
  font-size: 14px; font-family: inherit; color: var(--ink); background: #fbfcfe; transition: all .18s;
  resize: vertical;
}
.qcard input:focus, .qcard select:focus, .qcard textarea:focus {
  outline: none; border-color: var(--brand-2); background: #fff; box-shadow: 0 0 0 3px rgba(15, 76, 156, .1);
}
.form-tip { font-size: 12px; color: var(--ink-3); margin: 0; text-align: center; }
.form-tip.ok { color: #0d9488; font-weight: 700; }

/* ---------- Footer ---------- */
.foot { background: var(--dark); color: rgba(255, 255, 255, .62); padding: 56px 0 0; }
.foot-in { display: grid; grid-template-columns: 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
.foot-brand { display: flex; align-items: center; gap: 14px; }
.foot-brand b { display: block; font-size: 16px; color: #fff; font-weight: 800; }
.foot-brand p { margin: 4px 0 0; font-size: 12.5px; color: rgba(255, 255, 255, .5); }
.foot-cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.foot-cols > div { display: flex; flex-direction: column; gap: 9px; }
.foot-cols b { font-size: 13px; color: #fff; font-weight: 700; margin-bottom: 3px; }
.foot-cols a, .foot-cols span { font-size: 13px; color: rgba(255, 255, 255, .58); transition: color .18s; }
.foot-cols a:hover { color: #fff; }
.foot-bar {
  display: flex; gap: 20px; flex-wrap: wrap; align-items: center;
  padding: 18px 28px; border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 12px; color: rgba(255, 255, 255, .42);
}
.foot-note { margin-left: auto; }

/* ---------- 滚动淡入 ---------- */
/* 全部动效以 .js 为前提：脚本未执行时内容正常可见 */
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js [data-reveal].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1100px) {
  .nav-links { gap: 0; }
  .nav-links a { padding: 9px 10px; font-size: 14px; }
  .cats-grid { grid-template-columns: repeat(6, 1fr); }
  .coop-grid { grid-template-columns: repeat(2, 1fr); }
  .kg-grid { grid-template-columns: 1fr; }
  .kg-card { display: grid; grid-template-columns: .9fr 1.1fr; }
  .kg-media { aspect-ratio: auto; height: 100%; }
}

@media (max-width: 980px) {
  .wrap { padding: 0 20px; }
  .sec { padding: 76px 0; }
  .nav-in { height: 66px; gap: 14px; }
  .nav-links {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 12px 16px 18px;
    background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 16px 30px rgba(10, 46, 92, .12);
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--ink-2) !important; padding: 12px 14px; }
  .nav-links a:hover { background: var(--brand-soft) !important; color: var(--brand) !important; }
  .burger { display: block; }
  .nav-tel { display: none; }
  .brand-txt b { color: #fff; }
  .nav:not(.scrolled) .brand-txt b { color: #fff; }

  .hero { min-height: max(420px, min(52svh, 520px)); }
  .hero-in { padding-top: 84px; padding-bottom: 44px; }
  .hero-slide-cap { display: none; }
  .hero-dots { right: 20px; bottom: 16px; }
  .hero-facts-in { grid-template-columns: repeat(2, 1fr); }
  .hero-facts-in > div { padding: 16px 12px 16px 0; }
  .hero-facts-in > div:nth-child(3) { border-left: none; padding-left: 0; }
  .hero-facts-in > div:nth-child(3), .hero-facts-in > div:nth-child(4) { border-top: 1px solid rgba(255, 255, 255, .12); }
  .hero-facts-in > div:nth-child(4) { padding-left: 20px; }
  .hero-facts-in b { font-size: 25px; }

  .about-grid { grid-template-columns: 1fr; gap: 34px; }
  .trade-stats { grid-template-columns: repeat(3, 1fr); }
  .scene-band { grid-template-columns: 1fr; }
  .scene-band figure { aspect-ratio: 16 / 9; }
  .pf-grid { grid-template-columns: 1fr; }
  .cats-grid { grid-template-columns: repeat(5, 1fr); }
  .caps-grid { grid-template-columns: repeat(2, 1fr); }
  .kg-card { grid-template-columns: 1fr; }
  .kg-media { aspect-ratio: 16 / 10; }
  .kg-foot { grid-template-columns: 1fr; gap: 26px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 34px; }
  .foot-in { grid-template-columns: 1fr; gap: 30px; }
  .foot-cols { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 640px) {
  /* 移动端标题收紧，保证「工业品贸易 · 工业技术服务」不拆行 */
  .hero h1 { font-size: 28px; letter-spacing: -.3px; }
  .sec { padding: 58px 0; }
  .sec-head { margin-bottom: 32px; }
  .hero { min-height: 400px; }
  .hero-in { padding-top: 72px; padding-bottom: 54px; }
  .hero h1 { margin-bottom: 14px; }
  .hero-sub { font-size: 13.5px; line-height: 1.8; margin-bottom: 18px; }
  .hero-acts { gap: 10px; }
  .hero-acts .btn { flex: 1 1 46%; padding: 11px 10px; font-size: 13.5px; }
  .hero-dots { right: 50%; transform: translateX(50%); bottom: 20px; }
  .hero-facts-in b { font-size: 22px; }
  .hero-facts-in b { font-size: 21px; }
  .hero-facts-in span { font-size: 11.5px; }
  .trade-stats { grid-template-columns: repeat(2, 1fr); }
  .ts b { font-size: 24px; }
  .cats-grid { grid-template-columns: repeat(4, 1fr); }
  .cat img { width: 54px; height: 54px; }
  .cat span { font-size: 11.8px; }
  .caps-grid { grid-template-columns: 1fr; }
  .coop-grid { grid-template-columns: 1fr; }
  .pf-body { padding: 20px 20px 24px; }
  .pf-head h3 { font-size: 21px; }
  .foot-cols { grid-template-columns: 1fr 1fr; gap: 22px; }
  .foot-bar { flex-direction: column; align-items: flex-start; gap: 6px; }
  .foot-note { margin-left: 0; }
  .contact-list > div { grid-template-columns: 60px 1fr; }
  .qcard { padding: 24px 20px 22px; }
}


/* 2026-11-05 修正：固定导航 76px，锚点跳转需留出偏移；数字单位不再换行 */
section[id] { scroll-margin-top: 88px; }
.hero-facts-in b .plus, .hero-facts-in b .unit { vertical-align: baseline; }
@media (max-width: 980px) { section[id] { scroll-margin-top: 76px; } }


/* 2026-11-05：移动端 hero 背景偏亮，加强遮罩并给正文加轻微阴影，保证可读性 */
.hero-sub { text-shadow: 0 1px 3px rgba(0, 0, 0, .35); }
.hero h1 { text-shadow: 0 2px 10px rgba(0, 0, 0, .35); }
@media (max-width: 980px) {
  .hero-veil {
    background:
      linear-gradient(180deg, rgba(4, 14, 28, .95) 0%, rgba(4, 14, 28, .90) 52%, rgba(4, 14, 28, .78) 100%);
  }
}


/* 2026-11-05：品牌名不被断行拆开（如「工品巴士」） */
.hero-sub b, .pf-desc b, .sec-lead b { white-space: nowrap; }


/* ============================================================
   2026-11-06 平台定位标签 / 微动效
   ============================================================ */

/* ---------- 平台品类群标签 ---------- */
.pf-scope {
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
  font-size: 12.5px; font-weight: 800; letter-spacing: .3px; color: var(--brand-2);
  background: var(--brand-soft); border: 1px solid #d7e4f7; border-radius: 99px;
  padding: 5px 13px; margin: 0 0 13px;
}
.pf-scope::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- 顶部阅读进度条 ---------- */
.progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0; z-index: 120;
  background: linear-gradient(90deg, var(--accent), #ffb265);
  border-radius: 0 3px 3px 0; pointer-events: none;
  transition: width .12s linear;
  box-shadow: 0 0 10px rgba(232, 118, 12, .5);
}

/* ---------- 导航下划线 ---------- */
.nav-links a { position: relative; }
.nav-links a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 5px; height: 2px;
  border-radius: 2px; background: currentColor; opacity: .75;
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-links a:hover::after, .nav-links a.on::after { transform: scaleX(1); }

/* ---------- 首屏入场 ---------- */
@keyframes fadeUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes lineGrow { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes kenBurns { from { transform: scale(1.04); } to { transform: scale(1.09); } }

.js .hero-kicker { animation: fadeUp .8s var(--ease) .08s both; }
.js .hero-kicker span { transform-origin: left; animation: lineGrow .7s var(--ease) .02s both; }
.js .hero h1 { animation: fadeUp .9s var(--ease) .2s both; }
.js .hero-sub { animation: fadeUp .9s var(--ease) .34s both; }
.js .hero-acts { animation: fadeUp .9s var(--ease) .48s both; }
.js .facts-band { animation: fadeIn .9s ease .5s both; }

/* ---------- 网格错位渐入（子元素逐个上浮）----------
   用 animation + backwards，动画结束后不残留 transform，
   否则会盖掉卡片自身的 hover 位移 */
@keyframes gIn { from { opacity: 0; transform: translateY(18px); } }
.js .g:not(.in) > * { opacity: 0; }
.js .g.in > * {
  animation: gIn .62s var(--ease) backwards;
  animation-delay: calc(var(--i, 0) * 65ms);
}

/* ---------- 细微交互反馈 ---------- */
.cat img { transition: transform .4s var(--ease), border-color .2s, box-shadow .2s; }
.cat:hover img { transform: scale(1.08); border-color: #cfe0f5; box-shadow: 0 8px 18px rgba(10, 46, 92, .12); }
.cap:hover .cap-i { color: var(--brand-2); }
.coop:hover .coop-no { color: var(--brand-2); }
.pf-card:hover .pf-scope { color: var(--accent-2); border-color: #f3d5b3; background: #fff5ea; }
.ticks li::before { transition: background .2s, color .2s; }
.ticks li:hover::before { background: var(--brand-2); color: #fff; }

/* 按钮点击回弹 */
.btn:active { transform: translateY(0) scale(.985); }

@media (prefers-reduced-motion: reduce) {
  .js .hero-bg img,
  .js .hero-kicker, .js .hero-kicker span, .js .hero h1,
  .js .hero-sub, .js .hero-acts, .js .facts-band { animation: none; }
  .js .g:not(.in) > * { opacity: 1; }
  .js .g.in > * { animation: none; }
  .progress { transition: none; }
}

@media (max-width: 980px) {
  .nav-links a::after { display: none; }
  .progress { height: 2px; }
}

/* 2026-11-06：品牌名与域名作为整体不拆行 */
.hero-sub .np { white-space: nowrap; }

/* ---------- 首屏轮播指示器 ---------- */
.hero-dots { position: absolute; right: 28px; bottom: 22px; z-index: 3; display: flex; gap: 8px; }
.hero-dots .hd {
  width: 24px; height: 3px; padding: 0; border: none; border-radius: 2px; cursor: pointer;
  background: rgba(255, 255, 255, .32); transition: width .3s var(--ease), background .3s;
}
.hero-dots .hd:hover { background: rgba(255, 255, 255, .6); }
.hero-dots .hd.is-on { width: 40px; background: var(--accent); }

/* ---------- 关于我们 · 板块切换 ---------- */
.about-switch { margin-top: 24px; }
.as-tabs {
  display: inline-flex; gap: 4px; padding: 5px;
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
}
.as-tab {
  position: relative; border: none; background: transparent; cursor: pointer;
  padding: 9px 20px; border-radius: 9px; font: inherit; font-size: 14px; font-weight: 700;
  color: var(--ink-2); transition: color .22s, background .22s, box-shadow .22s;
}
.as-tab:hover { color: var(--brand-2); }
.as-tab.is-on { background: #fff; color: var(--brand); box-shadow: 0 2px 10px rgba(10, 46, 92, .1); }
.as-tab::after {
  content: ""; position: absolute; left: 20px; right: 20px; bottom: 5px; height: 2px;
  border-radius: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left;
}
.about-switch.auto .as-tab.is-on::after { animation: asBar 7s linear forwards; }
@keyframes asBar { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.as-panes { display: grid; margin-top: 18px; max-width: 780px; }
.as-pane {
  grid-area: 1 / 1; opacity: 0; transform: translateY(10px); visibility: hidden;
  transition: opacity .45s var(--ease), transform .45s var(--ease), visibility .45s;
}
.as-pane.is-on { opacity: 1; transform: none; visibility: visible; }
.as-pane p { margin: 0; font-size: 15.5px; line-height: 1.95; color: var(--ink-2); }

@media (prefers-reduced-motion: reduce) {
  .about-switch.auto .as-tab.is-on::after { animation: none; }
  .as-pane { transition: none; }
  .hero-slide { transition: none; }
  .js .hero-slide.is-on img { animation: none; }
}

/* ══════════════════════════════════════════════════════════════
   2026-11-06 · 关于我们区块收紧密度（冠哥：内容太松散）
   目标：压缩纵向节奏、左右两栏底边对齐、图片随文案高度自适应
   ══════════════════════════════════════════════════════════════ */
.sec-about { padding-top: 82px; padding-bottom: 84px; }
.sec-about .sec-head { margin-bottom: 30px; }

/* 切换器与面板收紧 */
.about-switch { margin-top: 16px; }
.as-panes { margin-top: 11px; }
.as-pane p { font-size: 15px; line-height: 1.8; }

/* 左右两栏等高：右栏图片撑满左栏文字高度 */
.sec-about .about-grid { align-items: stretch; gap: 40px; }
.about-media { height: 100%; min-height: 330px; grid-template-rows: 1.34fr 1fr; }
.about-media figure { height: 100%; }
.about-media .m-main,
.about-media .m-sub { aspect-ratio: auto; }

/* 正文与小标题压缩 */
.about-text h3 { font-size: 17.5px; margin: 20px 0 9px; letter-spacing: 0; }
.about-text h3:first-child { margin-top: 0; }
.about-text p { font-size: 15px; line-height: 1.82; margin: 0 0 9px; }
.about-text p:last-of-type { margin-bottom: 0; }

/* 优势条目：从「每条一大行」改为紧凑列表 */
.ticks { margin: 4px 0 0; }
.ticks li { padding: 8px 0 8px 27px; font-size: 14.4px; line-height: 1.72; }
.ticks li::before { width: 18px; height: 18px; top: 8px; font-size: 11px; border-radius: 5px; }

@media (max-width: 980px) {
  .sec-about { padding-top: 58px; padding-bottom: 58px; }
  .sec-about .about-grid { gap: 26px; }
  .about-media { height: auto; min-height: 0; grid-template-rows: auto; }
  .about-media .m-main { aspect-ratio: 4 / 3; }
  .about-media .m-sub { aspect-ratio: 16 / 9; }
}

/* 右栏图片不再参与高度计算：绝对定位铺满，让左栏文字决定两栏高度 */
.sec-about .about-media figure { position: relative; }
.sec-about .about-media figure img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}

/* 图片最小高度兜底 + 团队照裁切位置微调，避免人脸被切 */
.about-media { min-height: 372px; }
.about-media .m-sub img { object-position: center 34%; }
.about-media .m-main img { object-position: center 56%; }

@media (max-width: 980px) {
  .about-media { min-height: 0; grid-template-rows: auto; height: auto; }
}