/* =========================================================
   深圳人人数智物流科技有限公司 官网样式
   对标参考：yifeigroup.com/zh（深蓝科技风 / 卡片化 / 数据感）
   ========================================================= */

:root {
  /* 主色 — 深海蓝（信任 / 专业） */
  --c-navy-900: #06192e;
  --c-navy-800: #0a2540;
  --c-navy-700: #0e3358;
  --c-navy-600: #15436f;

  /* 强调色 — 数智青蓝（科技 / 智链） */
  --c-cyan-500: #19b6ff;
  --c-cyan-400: #38c6ff;
  --c-cyan-300: #7fe0ff;

  /* 辅助强调 — 智链绿（数智 / 增长） */
  --c-teal-500: #00d1b2;
  --c-teal-400: #2ee0c4;

  /* 行动色 — 暖橙（CTA 突出） */
  --c-amber-500: #ff8a1e;
  --c-amber-400: #ffa040;

  /* 中性 */
  --c-ink: #0f2233;
  --c-text: #20384c;
  --c-muted: #5d7186;
  --c-line: #e3ebf2;
  --c-bg: #ffffff;
  --c-bg-soft: #f4f8fc;
  --c-bg-tint: #eef5fb;

  --shadow-sm: 0 2px 8px rgba(13, 51, 88, 0.06);
  --shadow-md: 0 14px 38px rgba(10, 37, 64, 0.10);
  --shadow-lg: 0 26px 60px rgba(10, 37, 64, 0.16);

  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;

  --maxw: 1200px;
  --nav-h: 72px;

  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    "Helvetica Neue", "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 { color: var(--c-ink); line-height: 1.25; margin: 0 0 .4em; font-weight: 800; letter-spacing: .2px; }
h1 { font-size: clamp(30px, 4.4vw, 52px); }
h2 { font-size: clamp(26px, 3.2vw, 38px); }
h3 { font-size: clamp(18px, 2vw, 22px); }
p { margin: 0 0 1em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700;
  font-size: 15px; cursor: pointer; border: none; transition: all .25s ease;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(120deg, var(--c-cyan-500), var(--c-teal-500)); color: #fff; box-shadow: 0 10px 24px rgba(25,182,255,.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(25,182,255,.42); }
.btn-amber { background: linear-gradient(120deg, var(--c-amber-500), var(--c-amber-400)); color: #fff; box-shadow: 0 10px 24px rgba(255,138,30,.30); }
.btn-amber:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(255,138,30,.40); }
.btn-ghost { background: rgba(255,255,255,.10); color: #fff; border: 1px solid rgba(255,255,255,.32); }
.btn-ghost:hover { background: rgba(255,255,255,.18); }
.btn-outline { background: #fff; color: var(--c-navy-700); border: 1.5px solid var(--c-line); }
.btn-outline:hover { border-color: var(--c-cyan-500); color: var(--c-cyan-500); }
.btn .arrow { transition: transform .25s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ===================== 顶部导航 ===================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
  z-index: 1000; display: flex; align-items: center;
  transition: all .3s ease;
}
.nav-inner { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; }
.site-header.transparent { background: linear-gradient(180deg, rgba(6,25,46,.55), rgba(6,25,46,0)); }
.site-header.solid { background: rgba(255,255,255,.92); backdrop-filter: blur(12px); box-shadow: 0 4px 22px rgba(10,37,64,.08); }

.brand { display: flex; align-items: center; gap: 12px; }
.brand .logo-mark {
  width: 40px; height: 40px; border-radius: 11px;
  background: linear-gradient(135deg, var(--c-cyan-500), var(--c-teal-500));
  display: grid; place-items: center; color: #fff; font-weight: 900; font-size: 18px;
  box-shadow: 0 8px 18px rgba(25,182,255,.35);
}
.brand .brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand .brand-name { font-weight: 800; font-size: 17px; color: #fff; transition: color .3s; }
.brand .brand-sub { font-size: 11px; letter-spacing: 1.5px; color: var(--c-cyan-300); transition: color .3s; }
.site-header.solid .brand-name { color: var(--c-navy-800); }
.site-header.solid .brand-sub { color: var(--c-muted); }

/* 品牌 LOGO 图片 */
.brand .brand-logo-img {
  height: 60px; width: auto;
  object-fit: contain;
  transition: opacity .3s ease, filter .3s ease;
}
.brand .brand-logo-img:hover { opacity: .88; }

.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu li a {
  display: inline-block; padding: 9px 16px; border-radius: 999px;
  font-weight: 600; font-size: 15px; color: rgba(255,255,255,.9); transition: all .25s;
}
.site-header.solid .nav-menu li a { color: var(--c-text); }
.nav-menu li a:hover, .nav-menu li a.active { color: #fff; background: rgba(25,182,255,.18); }
.site-header.solid .nav-menu li a:hover, .site-header.solid .nav-menu li a.active { color: var(--c-cyan-500); background: var(--c-bg-tint); }
.nav-cta { margin-left: 8px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2.5px; background: #fff; border-radius: 2px; transition: .3s; }
.site-header.solid .nav-toggle span { background: var(--c-navy-800); }

/* ===================== 首屏 Hero ===================== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--nav-h); overflow: hidden;
  background: radial-gradient(1200px 700px at 78% 12%, #114a7e 0%, transparent 55%),
              radial-gradient(900px 600px at 10% 90%, #0c3a66 0%, transparent 55%),
              linear-gradient(160deg, #06192e 0%, #0a2540 55%, #0e3358 100%);
  color: #fff;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 54px 54px; mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 78%);
  pointer-events: none;
}
.hero-glow { position: absolute; width: 620px; height: 620px; right: -120px; top: 80px;
  background: radial-gradient(circle, rgba(25,182,255,.30), transparent 60%); filter: blur(20px); pointer-events: none; }
/* 世界地图点线装饰 */
.hero-dots { position: absolute; inset: 0; opacity: .5; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 40px 24px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px;
  border-radius: 999px; background: rgba(25,182,255,.14); border: 1px solid rgba(25,182,255,.35);
  color: var(--c-cyan-300); font-weight: 600; font-size: 14px; margin-bottom: 22px;
}
.hero-tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-teal-400); box-shadow: 0 0 0 4px rgba(46,224,196,.25); }
.hero h1 { color: #fff; max-width: 16em; }
.hero h1 .hl { background: linear-gradient(120deg, var(--c-cyan-400), var(--c-teal-400)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { font-size: clamp(16px, 1.5vw, 19px); color: rgba(255,255,255,.82); max-width: 38em; margin: 18px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 46px; }

/* 首屏数据指标 */
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; max-width: 820px; }
.hero-stat { padding: 18px 20px; 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: clamp(26px, 3vw, 36px); font-weight: 900; color: #fff; line-height: 1; }
.hero-stat .num .unit { font-size: 18px; font-weight: 700; color: var(--c-cyan-300); margin-left: 3px; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 8px; }

/* ===================== 通用 section 头 ===================== */
.section { padding: 92px 0; }
.section-soft { background: var(--c-bg-soft); }
.section-head { max-width: 760px; margin: 0 auto 54px; text-align: center; }
.section-head .eyebrow { display: inline-block; font-weight: 700; letter-spacing: 2px; font-size: 13px;
  color: var(--c-cyan-500); text-transform: uppercase; margin-bottom: 12px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { color: var(--c-muted); font-size: 17px; }

/* ===================== 痛点对比 ===================== */
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.pain-col { border-radius: var(--radius-lg); padding: 32px; }
.pain-col.bad { background: #fff5f1; border: 1px solid #ffd9c6; }
.pain-col.good { background: linear-gradient(160deg, #eafaff, #eafbf4); border: 1px solid #c7f0e4; }
.pain-col h3 { display: flex; align-items: center; gap: 10px; }
.pain-col .pill { font-size: 12px; padding: 3px 10px; border-radius: 999px; font-weight: 700; }
.pain-col.bad .pill { background: #ffe2d4; color: #c9531c; }
.pain-col.good .pill { background: #d6f6ec; color: #0a9b80; }
.pain-list li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px dashed var(--c-line); font-size: 15.5px; }
.pain-list li:last-child { border-bottom: none; }
.pain-col.bad .pain-list li .ic { color: #e2602f; }
.pain-col.good .pain-list li .ic { color: #0a9b80; }
.pain-list li .ic { flex: none; margin-top: 3px; font-weight: 800; }

/* ===================== 服务卡片 ===================== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  position: relative; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 30px 28px; transition: all .3s ease; overflow: hidden;
}
.card::before { content: ""; position: absolute; left: 0; top: 0; height: 4px; width: 0; background: linear-gradient(90deg, var(--c-cyan-500), var(--c-teal-500)); transition: width .35s ease; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.card:hover::before { width: 100%; }
.card .ic-box {
  width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(135deg, #e8f6ff, #e6fbf3); color: var(--c-cyan-500); margin-bottom: 18px;
}
.card .ic-box svg { width: 28px; height: 28px; }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--c-muted); font-size: 14.5px; margin-bottom: 16px; }
.card .card-tag { display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--c-teal-500); background: #e6fbf3; padding: 4px 12px; border-radius: 999px; }

/* ===================== 流程时间线 ===================== */
.process { background: linear-gradient(160deg, #06192e, #0a2540); color: #fff; }
.process .section-head h2, .process .section-head p { color: #fff; }
.process .section-head .eyebrow { color: var(--c-cyan-300); }
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; top: 38px; left: 6%; right: 6%; height: 2px; background: linear-gradient(90deg, rgba(25,182,255,.1), rgba(46,224,196,.5), rgba(25,182,255,.1)); }
.step { position: relative; text-align: center; padding-top: 8px; }
.step .step-no { width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--c-cyan-500), var(--c-teal-500)); color: #fff; font-weight: 900; font-size: 22px;
  box-shadow: 0 10px 24px rgba(25,182,255,.4); position: relative; z-index: 2; }
.step h4 { color: #fff; font-size: 17px; margin-bottom: 8px; }
.step p { color: rgba(255,255,255,.7); font-size: 13.5px; margin-bottom: 8px; }
.step .step-time { font-size: 12.5px; font-weight: 700; color: var(--c-cyan-300); }

/* ===================== 优势数据 ===================== */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv { text-align: center; padding: 34px 18px; border-radius: var(--radius); background: #fff; border: 1px solid var(--c-line); }
.adv .num { font-size: clamp(34px, 4vw, 46px); font-weight: 900; background: linear-gradient(120deg, var(--c-cyan-500), var(--c-teal-500)); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.adv .label { margin-top: 10px; font-weight: 600; color: var(--c-ink); }
.adv .sub { font-size: 13px; color: var(--c-muted); margin-top: 4px; }

/* ===================== 客户案例 ===================== */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { border-radius: var(--radius); overflow: hidden; background: #fff; border: 1px solid var(--c-line); transition: all .3s; display: flex; flex-direction: column; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.case-thumb { height: 168px; position: relative; display: grid; place-items: center; color: #fff; }
.case-thumb .ct { font-size: 15px; font-weight: 700; letter-spacing: 1px; opacity: .9; }
.case-thumb .icon-big { font-size: 46px; margin-bottom: 6px; }
.case-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.case-body h3 { font-size: 18px; }
.case-body p { color: var(--c-muted); font-size: 14px; flex: 1; }
.case-meta { font-size: 12.5px; font-weight: 700; color: var(--c-teal-500); margin-top: 14px; display: inline-flex; align-items: center; gap: 6px; }

/* ===================== 证言 ===================== */
.testi { background: var(--c-bg-soft); }
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testi-card { background: #fff; border-radius: var(--radius); padding: 28px; border: 1px solid var(--c-line); position: relative; }
.testi-card .quote { font-size: 40px; color: var(--c-cyan-300); font-weight: 900; line-height: .6; }
.testi-card p { color: var(--c-text); font-size: 15px; margin: 14px 0 20px; }
.testi-card .who { display: flex; align-items: center; gap: 12px; }
.testi-card .avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--c-cyan-500), var(--c-teal-500)); color: #fff; display: grid; place-items: center; font-weight: 800; }
.testi-card .who b { color: var(--c-ink); display: block; }
.testi-card .who span { font-size: 13px; color: var(--c-muted); }

/* ===================== 全球网络 ===================== */
.network { background: linear-gradient(160deg, #0a2540, #06192e); color: #fff; }
.network .section-head h2, .network .section-head p { color: #fff; }
.network .section-head .eyebrow { color: var(--c-cyan-300); }
.net-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 36px; }
.net-node { background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); padding: 22px; transition: all .3s; }
.net-node:hover { background: rgba(25,182,255,.14); transform: translateY(-4px); }
.net-node .city { font-weight: 800; font-size: 18px; }
.net-node .role { font-size: 13px; color: var(--c-cyan-300); margin-top: 4px; }
.net-node .desc { font-size: 13px; color: rgba(255,255,255,.7); margin-top: 8px; }
.net-map { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.03); }
.net-map svg { width: 100%; height: auto; display: block; }

/* ===================== 数智能力 ===================== */
.tech-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 48px; align-items: center; }
.tech-list li { display: flex; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--c-line); }
.tech-list li:last-child { border-bottom: none; }
.tech-list .t-ic { flex: none; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--c-bg-tint); color: var(--c-cyan-500); font-size: 22px; }
.tech-list h4 { margin: 0 0 4px; font-size: 16.5px; }
.tech-list p { margin: 0; font-size: 14px; color: var(--c-muted); }
.tech-panel { background: linear-gradient(160deg, #0a2540, #0e3358); border-radius: var(--radius-lg); padding: 30px; color: #fff; box-shadow: var(--shadow-lg); }
.tech-panel .scr { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 12px; padding: 16px; margin-bottom: 14px; }
.tech-panel .scr .row { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px dashed rgba(255,255,255,.12); font-size: 13.5px; }
.tech-panel .scr .row:last-child { border-bottom: none; }
.tech-panel .scr .bar { height: 7px; border-radius: 4px; background: rgba(255,255,255,.12); overflow: hidden; width: 120px; }
.tech-panel .scr .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--c-cyan-500), var(--c-teal-500)); }
.tech-panel .scr .ok { color: var(--c-teal-400); font-weight: 700; }

/* ===================== CTA 横幅 ===================== */
.cta-band { background: linear-gradient(120deg, var(--c-cyan-500), var(--c-teal-500)); color: #fff; border-radius: var(--radius-lg); padding: 48px 44px; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; box-shadow: var(--shadow-md); }
.cta-band h2 { color: #fff; margin: 0; font-size: clamp(22px, 2.6vw, 30px); }
.cta-band p { color: rgba(255,255,255,.9); margin: 8px 0 0; }

/* ===================== 页脚 ===================== */
.site-footer { background: #06192e; color: rgba(255,255,255,.7); padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 36px; }
.footer-brand .logo-mark { background: linear-gradient(135deg, var(--c-cyan-500), var(--c-teal-500)); }
.footer-brand .brand-name { color: #fff; font-weight: 800; font-size: 18px; }
.footer-brand p { margin-top: 16px; font-size: 14px; max-width: 30em; }
.footer-col h4 { color: #fff; font-size: 15px; margin-bottom: 16px; }
.footer-col a { display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,.7); transition: color .2s; }
.footer-col a:hover { color: var(--c-cyan-300); }
.footer-contact li { display: flex; gap: 10px; padding: 7px 0; font-size: 14px; }
.footer-contact .fic { color: var(--c-cyan-300); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255,255,255,.55); }

/* ===================== 关于页 ===================== */
.page-hero { background: linear-gradient(160deg, #06192e, #0a2540); color: #fff; padding: calc(var(--nav-h) + 64px) 0 72px; }
.page-hero .crumbs { font-size: 13px; color: var(--c-cyan-300); margin-bottom: 14px; letter-spacing: 1px; }
.page-hero h1 { color: #fff; }
.page-hero p { color: rgba(255,255,255,.8); max-width: 40em; font-size: 17px; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.about-text h2 { margin-bottom: 16px; }
.about-text p { color: var(--c-muted); }
.value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 30px; }
.value { padding: 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--c-line); }
.value .v-ic { font-size: 26px; margin-bottom: 10px; }
.value h4 { margin: 0 0 6px; }
.value p { font-size: 14px; color: var(--c-muted); margin: 0; }
.about-visual { border-radius: var(--radius-lg); padding: 30px; background: linear-gradient(160deg, #e8f6ff, #e6fbf3); }
.about-visual .big-num { display: flex; gap: 20px; flex-wrap: wrap; }
.about-visual .bn { flex: 1; min-width: 120px; }
.about-visual .bn .n { font-size: 34px; font-weight: 900; color: var(--c-navy-700); }
.about-visual .bn .l { font-size: 13px; color: var(--c-muted); }

/* 资质条 */
.cred-bar { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cred { background: #fff; border: 1px solid var(--c-line); border-radius: 999px; padding: 10px 22px; font-weight: 700; font-size: 14px; color: var(--c-navy-700); box-shadow: var(--shadow-sm); }

/* ===================== 服务页 ===================== */
.svc-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; padding: 46px 0; border-bottom: 1px solid var(--c-line); }
.svc-detail:last-child { border-bottom: none; }
.svc-detail.reverse .svc-text { order: 2; }
.svc-text h3 { font-size: 24px; margin-bottom: 12px; }
.svc-text .svc-tag { display: inline-block; font-size: 12.5px; font-weight: 700; color: var(--c-cyan-500); background: var(--c-bg-tint); padding: 5px 14px; border-radius: 999px; margin-bottom: 16px; }
.svc-text p { color: var(--c-muted); }
.svc-points { margin-top: 16px; }
.svc-points li { display: flex; gap: 10px; padding: 7px 0; font-size: 15px; }
.svc-points li .ck { color: var(--c-teal-500); font-weight: 800; }
.svc-visual { border-radius: var(--radius-lg); min-height: 240px; display: grid; place-items: center; color: #fff; padding: 30px; text-align: center; }
.svc-visual .vbig { font-size: 40px; margin-bottom: 10px; }
.svc-visual h4 { color: #fff; font-size: 20px; }
.svc-visual p { color: rgba(255,255,255,.85); font-size: 14px; margin: 8px 0 0; }

/* ===================== 联系页 ===================== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.contact-info .info-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--c-line); }
.contact-info .info-item .ii { width: 46px; height: 46px; border-radius: 12px; background: var(--c-bg-tint); color: var(--c-cyan-500); display: grid; place-items: center; font-size: 22px; flex: none; }
.contact-info .info-item b { color: var(--c-ink); }
.contact-info .info-item p { margin: 2px 0 0; color: var(--c-muted); font-size: 14.5px; }
.form-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.form-card h3 { margin-bottom: 6px; }
.form-card .hint { color: var(--c-muted); font-size: 14px; margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 7px; color: var(--c-ink); }
.field input, .field textarea, .field select { width: 100%; padding: 12px 14px; border: 1.5px solid var(--c-line); border-radius: var(--radius-sm); font-family: var(--font); font-size: 14.5px; color: var(--c-text); transition: border-color .2s; background: #fff; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--c-cyan-500); }
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 13px; color: var(--c-muted); margin-top: 6px; }
.map-box { margin-top: 30px; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--c-line); height: 280px; background: linear-gradient(160deg, #e8f6ff, #e6fbf3); position: relative; }
.map-box .pin { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-100%); background: var(--c-cyan-500); color: #fff; padding: 8px 14px; border-radius: 10px; font-weight: 700; font-size: 13px; box-shadow: var(--shadow-md); }
.map-box .pin::after { content: ""; position: absolute; left: 50%; bottom: -7px; transform: translateX(-50%); border: 7px solid transparent; border-top-color: var(--c-cyan-500); border-bottom: none; }

/* ===================== reveal 动效 ===================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===================== 响应式 ===================== */
@media (max-width: 980px) {
  .pain-grid, .about-grid, .tech-grid, .svc-detail, .contact-wrap { grid-template-columns: 1fr; gap: 32px; }
  .cards, .case-grid, .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid, .net-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); gap: 30px 16px; }
  .timeline::before { display: none; }
  .value-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .svc-detail.reverse .svc-text { order: 0; }
}
@media (max-width: 720px) {
  .nav-menu, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .site-header.open .nav-menu { display: flex; flex-direction: column; position: absolute; top: var(--nav-h); left: 0; right: 0; background: #fff; padding: 14px; gap: 4px; box-shadow: var(--shadow-md); }
  .site-header.open .nav-menu li a { color: var(--c-text); width: 100%; }
  .site-header.open .nav-cta { display: block; position: absolute; top: calc(var(--nav-h) + 290px); left: 14px; right: 14px; }
  .site-header.open .nav-cta .btn { width: 100%; justify-content: center; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .cards, .case-grid, .testi-grid, .adv-grid, .net-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .cta-band { padding: 32px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* 浮动咨询按钮 */
.float-cta { position: fixed; right: 22px; bottom: 22px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.float-cta a { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; color: #fff; font-size: 22px; box-shadow: var(--shadow-md); transition: transform .2s; }
.float-cta a:hover { transform: scale(1.08); }
.float-cta .f-qq { background: linear-gradient(135deg, var(--c-cyan-500), var(--c-teal-500)); }
.float-cta .f-top { background: var(--c-navy-700); }

/* ============ 中英语言切换 ============ */
.lang-switch { display: flex; align-items: center; gap: 4px; margin-left: 12px; }
.lang-switch .ls-btn {
  background: transparent; border: 1px solid rgba(255,255,255,.45);
  color: #fff; font-size: 13px; font-weight: 700; line-height: 1;
  padding: 7px 10px; border-radius: 8px; cursor: pointer; transition: all .2s ease;
  font-family: var(--font);
}
.lang-switch .ls-btn:hover { border-color: #fff; }
.site-header.solid .lang-switch .ls-btn { border-color: var(--c-line); color: var(--c-navy-800); }
.site-header.solid .lang-switch .ls-btn:hover { border-color: var(--c-navy-600); }
.lang-switch .ls-btn.active { background: var(--c-cyan-500); border-color: var(--c-cyan-500); color: #fff; }
.lang-switch .ls-sep { color: rgba(255,255,255,.5); font-size: 12px; user-select: none; }
.site-header.solid .lang-switch .ls-sep { color: var(--c-muted); }
@media (max-width: 720px) {
  .lang-switch { margin-left: 8px; }
  .lang-switch .ls-btn { padding: 6px 8px; font-size: 12px; }
  .brand .brand-logo-img { height: 46px; }
}