/* ==========================================================================
   承实数科官网 · 全站样式
   chengshi.tech — 智能硬件全链路服务商
   ========================================================================== */

/* ---------- 1. Design Tokens ---------- */
:root {
  --navy-950: #04101F;
  --navy-900: #071A33;
  --navy-800: #0A2547;
  --navy-700: #0E3263;

  --primary: #1256D6;
  --primary-dark: #0D43AC;
  --primary-deep: #0A3585;

  --cyan: #22C7F5;
  --cyan-soft: #6FE3FF;

  --ink: #10203A;
  --slate: #57677F;
  --slate-light: #8A97AB;

  --line: #E2E9F3;
  --bg-soft: #F4F7FB;
  --bg-mist: #FAFCFE;
  --white: #FFFFFF;

  --grad-blue: linear-gradient(120deg, #1256D6 0%, #22A6E8 100%);
  --grad-deep: linear-gradient(135deg, #071A33 0%, #0A2C5C 52%, #0C3D8C 100%);

  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;

  --shadow-sm: 0 2px 10px rgba(16, 42, 87, .06);
  --shadow-md: 0 10px 30px rgba(16, 42, 87, .10);
  --shadow-lg: 0 24px 60px rgba(7, 26, 51, .16);
  --shadow-primary: 0 10px 26px rgba(18, 86, 214, .32);

  --header-h: 74px;
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 2. Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--white);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 15px; }

::selection { background: rgba(18, 86, 214, .18); }

/* 隐藏页面滚动条（滚动功能保留） */
html { scrollbar-width: none; -ms-overflow-style: none; }
html::-webkit-scrollbar,
body::-webkit-scrollbar { width: 0; height: 0; display: none; }
.topbar-badges, .trustbar-inner, .nav { scrollbar-width: none; }
.topbar-badges::-webkit-scrollbar,
.trustbar-inner::-webkit-scrollbar,
.nav::-webkit-scrollbar { width: 0; height: 0; display: none; }

.container { width: min(1200px, 92%); margin: 0 auto; }

h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; color: var(--ink); }
p { color: var(--slate); }

.text-grad {
  background: linear-gradient(100deg, #6FE3FF, #4E9BFF 60%, #7C8CFF);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------- 3. Section & Head ---------- */
.section { padding: 96px 0; }
.section-soft { background: var(--bg-soft); }
.section-mist { background: var(--bg-mist); }
.section-deep { background: var(--navy-900); color: #D9E4F2; }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin: 0 0 48px; text-align: left; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--primary);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--grad-blue);
  border-radius: 2px;
}
.section-head.left .eyebrow::after { display: none; }

.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); margin-bottom: 16px; }
.section-desc { font-size: 16.5px; }

.section-deep .section-head h2,
.section-deep h2, .section-deep h3 { color: #fff; }
.section-deep p { color: #9FB4CE; }
.section-deep .eyebrow { color: var(--cyan); }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.2;
  transition: all .25s ease;
  white-space: nowrap;
  cursor: pointer;
}
.btn svg { width: 17px; height: 17px; }

.btn-primary { background: var(--grad-blue); color: #fff; box-shadow: var(--shadow-primary); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(18, 86, 214, .42); }

.btn-outline { border: 1.5px solid rgba(255,255,255,.55); color: #fff; backdrop-filter: blur(4px); }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }

.btn-ghost { border: 1.5px solid var(--line); color: var(--ink); background: #fff; }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }

.btn-sm { padding: 9px 20px; font-size: 14px; }
.btn-lg { padding: 16px 38px; font-size: 16.5px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--primary); font-size: 15px; }
.link-arrow svg { width: 16px; height: 16px; transition: transform .25s; }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---------- 5. Chips / Tags / Badges ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 500;
  background: #EDF3FC;
  color: var(--primary-deep);
  border: 1px solid #D9E6F8;
  transition: all .22s;
}
.chip-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.chip:hover { background: #E1EBFA; }

.chip-solid { background: rgba(34, 199, 245, .12); color: var(--cyan); border-color: rgba(34, 199, 245, .35); }
.chip-solid:hover { background: rgba(34, 199, 245, .2); }

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 12.5px;
  font-weight: 600;
  background: #EDF3FC;
  color: var(--primary);
}

/* ---------- 6. Topbar（资质滚动条） ---------- */
.topbar {
  background: var(--navy-950);
  color: #A7BAD3;
  font-size: 13px;
  position: relative;
  z-index: 60;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 38px; }
.topbar-badges { display: flex; align-items: center; gap: 0; overflow: hidden; white-space: nowrap; }
.topbar-badges .badge-item { display: inline-flex; align-items: center; gap: 7px; padding: 0 18px; }
.topbar-badges .badge-item::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); }
.topbar-site { color: #7E93B0; font-size: 12.5px; letter-spacing: .06em; white-space: nowrap; }
.topbar-site:hover { color: var(--cyan); }

@media (min-width: 1101px) {
  .topbar-track { display: flex; }
  .topbar-track .dup { display: none; }
}
@media (max-width: 1100px) {
  .topbar-site { display: none; }
  .topbar-inner { justify-content: center; }
  .topbar-track { display: flex; width: max-content; animation: marquee 28s linear infinite; }
  .topbar:hover .topbar-track { animation-play-state: paused; }
}
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- 7. Header / Nav ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, border-color .3s;
}
.header.scrolled { border-color: var(--line); box-shadow: 0 6px 24px rgba(7, 26, 51, .08); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo { width: 42px; height: 42px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-size: 20px; letter-spacing: .02em; color: var(--ink); }
.brand-text small { font-size: 10.5px; letter-spacing: .22em; color: var(--slate-light); font-weight: 600; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 8px 14px;
  font-size: 15.5px;
  font-weight: 500;
  color: #33465F;
  border-radius: 8px;
  white-space: nowrap;
  transition: color .2s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 0;
  width: 0; height: 2.5px;
  border-radius: 2px;
  background: var(--grad-blue);
  transform: translateX(-50%);
  transition: width .25s;
}
.nav a:hover { color: var(--primary); }
.nav a.active { color: var(--primary); font-weight: 600; }
.nav a.active::after { width: 22px; }

.header-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.header-tel {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; color: var(--ink);
}
.header-tel svg { width: 17px; height: 17px; color: var(--primary); }
.header-tel:hover { color: var(--primary); }

.nav-toggle { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; align-items: center; }
.nav-toggle span { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--ink); transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1240px) and (min-width: 1025px) {
  .nav a { padding: 8px 10px; font-size: 14.5px; }
  .header-tel { font-size: 13.5px; }
}

@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  .header-tel { display: none; }
  .nav {
    position: fixed;
    top: calc(var(--header-h) + 38px);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    padding: 12px 5% 22px;
    gap: 2px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .3s;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }
  .nav.open { transform: translateY(0); opacity: 1; visibility: visible; }
  .nav a { padding: 12px 10px; border-bottom: 1px dashed var(--line); }
  .nav a::after { display: none; }
  .nav a.active { background: #F0F5FD; }
}

/* ---------- 8. Hero（首页首屏） ---------- */
.hero {
  position: relative;
  background: var(--grad-deep);
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .07) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 90% 80% at 60% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 60% 40%, #000 30%, transparent 75%);
}
.hero-glow {
  position: absolute;
  width: 560px; height: 560px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .35;
  pointer-events: none;
}
.hero-glow.g1 { background: #1256D6; top: -180px; right: -120px; }
.hero-glow.g2 { background: #0891B2; bottom: -240px; left: -140px; opacity: .28; }

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  align-items: center;
  gap: 48px;
  padding: 100px 0 110px;
}

.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(34, 199, 245, .1);
  border: 1px solid rgba(111, 227, 255, .3);
  color: var(--cyan-soft);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .05em;
  margin-bottom: 26px;
}
.hero-kicker::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }

.hero h1 {
  color: #fff;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.22;
  letter-spacing: .01em;
  margin-bottom: 22px;
}
.hero-sub {
  color: #AEC2DE;
  font-size: clamp(15.5px, 1.5vw, 18px);
  max-width: 560px;
  margin-bottom: 38px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }

.hero-chain { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.hero-chain .chain-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  font-size: 13.5px;
  color: #C6D6EC;
}
.hero-chain .chain-item b { color: #fff; font-weight: 600; }
.hero-chain .chain-sep { color: rgba(140, 170, 210, .6); font-size: 14px; }

/* Hero 右侧视觉 */
.hero-visual { position: relative; display: flex; justify-content: center; }
.hero-visual svg { width: min(480px, 100%); height: auto; }
.node-float { animation: nodeFloat 5s ease-in-out infinite; }
.node-float.d1 { animation-delay: -1.2s; }
.node-float.d2 { animation-delay: -2.4s; }
.node-float.d3 { animation-delay: -3.6s; }
.node-float.d4 { animation-delay: -4.8s; }
@keyframes nodeFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
.flow-dash { stroke-dasharray: 5 7; animation: dashFlow 1.6s linear infinite; }
@keyframes dashFlow { to { stroke-dashoffset: -24; } }
.core-pulse { animation: corePulse 3.2s ease-in-out infinite; transform-origin: center; }
@keyframes corePulse { 0%, 100% { opacity: .35; transform: scale(1); } 50% { opacity: .9; transform: scale(1.04); } }

@media (max-width: 920px) {
  .hero-inner { grid-template-columns: 1fr; padding: 64px 0 76px; }
  .hero-visual { order: -1; }
  .hero-visual svg { width: min(340px, 88%); }
}

/* ---------- 9. 信任资质条 ---------- */
.trustbar { background: var(--navy-950); border-top: 1px solid rgba(140, 180, 240, .12); }
.trustbar-inner {
  display: flex; align-items: stretch; justify-content: space-between;
  gap: 0; overflow-x: auto;
}
.trust-item {
  flex: 1 1 0;
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 20px 14px;
  color: #C3D3E8;
  font-size: 14.5px;
  font-weight: 500;
  white-space: nowrap;
  border-left: 1px solid rgba(140, 180, 240, .1);
}
.trust-item:first-child { border-left: 0; }
.trust-item svg { width: 20px; height: 20px; color: var(--cyan); flex-shrink: 0; }

@media (max-width: 920px) {
  .trustbar-inner { flex-direction: column; }
  .trust-item { border-left: 0; border-top: 1px solid rgba(140, 180, 240, .1); padding: 14px; justify-content: flex-start; }
  .trust-item:first-child { border-top: 0; }
}

/* ---------- 10. 卖点卡片 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

@media (max-width: 1024px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 920px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: #C9DBF5; }

.card-icon {
  width: 54px; height: 54px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #EAF2FE, #DDF4FF);
  color: var(--primary);
  margin-bottom: 20px;
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 18.5px; margin-bottom: 10px; }
.card p { font-size: 14.5px; }

.card-num {
  font-size: 13px; font-weight: 700; letter-spacing: .1em;
  color: #B9C6D9; margin-bottom: 12px;
}

/* ---------- 11. 业务速览（大卡） ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.biz-card {
  position: relative;
  display: flex; gap: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  overflow: hidden;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}
.biz-card::after {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--grad-blue);
  opacity: 0;
  transition: opacity .3s;
}
.biz-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #C9DBF5; }
.biz-card:hover::after { opacity: 1; }

.biz-icon {
  flex-shrink: 0;
  width: 62px; height: 62px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--grad-blue);
  color: #fff;
  box-shadow: var(--shadow-primary);
}
.biz-icon svg { width: 30px; height: 30px; }
.biz-card h3 { font-size: 20px; margin-bottom: 8px; }
.biz-card p { font-size: 14.5px; margin-bottom: 14px; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.biz-tags span {
  font-size: 12.5px;
  padding: 4px 11px;
  border-radius: 6px;
  background: var(--bg-soft);
  color: var(--slate);
  border: 1px solid var(--line);
}
@media (max-width: 860px) {
  .biz-grid { grid-template-columns: 1fr; }
  .biz-card { flex-direction: column; }
}

/* ---------- 12. 数据统计带 ---------- */
.stats {
  position: relative;
  background: var(--navy-900);
  overflow: hidden;
}
.stats::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(620px 300px at 15% 0%, rgba(18, 86, 214, .35), transparent 65%),
    radial-gradient(520px 320px at 88% 100%, rgba(8, 145, 178, .28), transparent 65%);
}
.stats-inner { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; padding: 72px 0; }
.stat-item { text-align: center; padding: 10px 12px; border-radius: var(--radius); transition: background .3s; }
.stat-item:hover { background: rgba(255, 255, 255, .04); }
.stat-value {
  font-size: clamp(38px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--cyan-soft);
  font-variant-numeric: tabular-nums;
  letter-spacing: .01em;
}
.stat-value small { font-size: .5em; font-weight: 700; margin-left: 3px; color: var(--cyan); }
.stat-label { color: #B9CBDF; font-size: 15.5px; margin-top: 8px; font-weight: 500; }
.stat-note {
  position: relative; z-index: 2;
  text-align: center;
  color: #6E82A0;
  font-size: 12.5px;
  padding-bottom: 22px;
}
@media (max-width: 860px) { .stats-inner { grid-template-columns: repeat(2, 1fr); } }

/* ---------- 13. 案例卡 ---------- */
.case-card {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.case-cover {
  position: relative;
  aspect-ratio: 16 / 9.4;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.case-cover .cover-icon { width: 52px; height: 52px; color: rgba(255,255,255,.92); }
.cv-1 { background: linear-gradient(135deg, #0C2E62, #1256D6 70%, #22A6E8); }
.cv-2 { background: linear-gradient(135deg, #0B3B54, #0E7490 60%, #22C7F5); }
.cv-3 { background: linear-gradient(135deg, #1E2A63, #4338CA 65%, #6D5DF6); }
.cv-4 { background: linear-gradient(135deg, #123A5C, #0E6FA8 60%, #2FB8DE); }
.cv-5 { background: linear-gradient(135deg, #232B4D, #3F4C8C 65%, #6C7BC4); }
.cv-6 { background: linear-gradient(135deg, #0D3234, #0F766E 60%, #2DD4BF); }
.case-cover::after {
  content: "";
  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: 34px 34px;
}
.case-cover .case-tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(4, 16, 31, .5);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  font-size: 12.5px;
  backdrop-filter: blur(6px);
}
.case-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 17.5px; margin-bottom: 10px; }
.case-body p { font-size: 14px; flex: 1; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

/* ---------- 14. 流程 Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; position: relative; }
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 20px 24px;
  text-align: center;
  transition: transform .28s, box-shadow .28s;
}
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-no {
  width: 44px; height: 44px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--grad-blue);
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 8px 18px rgba(18, 86, 214, .3);
}
.step h4 { font-size: 16.5px; margin-bottom: 7px; }
.step p { font-size: 13px; }
.step::after {
  content: "";
  position: absolute;
  top: 50%; right: -14px;
  width: 14px; height: 2px;
  background: repeating-linear-gradient(90deg, #AFC6E8 0 4px, transparent 4px 7px);
}
.step:last-child::after { display: none; }
@media (max-width: 1024px) { .steps { grid-template-columns: repeat(3, 1fr); } .step:nth-child(3)::after { display: none; } }
@media (max-width: 640px) {
  .steps { grid-template-columns: 1fr 1fr; }
  .step::after, .step:nth-child(3)::after { display: none; }
}

/* ---------- 15. 新闻卡 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #C9DBF5; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.news-date { font-size: 13px; color: var(--slate-light); }
.news-card h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.5; }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { font-size: 14px; flex: 1; }
@media (max-width: 920px) { .news-grid { grid-template-columns: 1fr; } }

/* ---------- 16. CTA 转化区 ---------- */
.cta {
  position: relative;
  background: var(--grad-deep);
  color: #fff;
  overflow: hidden;
  text-align: center;
}
.cta::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 100% at 50% 50%, #000 20%, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse 70% 100% at 50% 50%, #000 20%, transparent 72%);
}
.cta-inner { position: relative; z-index: 2; padding: 88px 0; max-width: 780px; margin: 0 auto; }
.cta h2 { color: #fff; font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
.cta p { color: #AEC2DE; font-size: 16.5px; margin-bottom: 34px; }
.cta-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.cta-tel { display: inline-flex; align-items: center; gap: 12px; margin-top: 26px; color: #C6D6EC; font-size: 14px; }
.cta-tel b { color: var(--cyan-soft); font-size: 21px; letter-spacing: .03em; }
.cta-tel svg { width: 19px; height: 19px; color: var(--cyan); }

/* ---------- 17. 子页 Banner ---------- */
.page-banner {
  position: relative;
  background: var(--grad-deep);
  color: #fff;
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 85% 90% at 50% 0%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 90% at 50% 0%, #000 25%, transparent 78%);
}
.page-banner-inner { position: relative; z-index: 2; padding: 72px 0 66px; }
.crumbs { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: #8FA6C4; margin-bottom: 16px; flex-wrap: wrap; }
.crumbs a:hover { color: var(--cyan-soft); }
.crumbs .sep { opacity: .55; }
.crumbs .cur { color: #D5E2F2; }
.page-banner h1 { color: #fff; font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 12px; }
.page-banner .lead { color: #A9BEDC; max-width: 680px; font-size: 16px; }

/* ---------- 18. About 页 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
@media (max-width: 920px) { .split { grid-template-columns: 1fr; gap: 40px; } }

.about-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-deep);
  aspect-ratio: 5 / 4;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
}
.about-visual::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .08) 1px, transparent 1px);
  background-size: 40px 40px;
}
.about-visual svg { position: relative; z-index: 2; width: 46%; }
.about-visual .float-card {
  position: absolute; z-index: 3;
  background: rgba(7, 26, 51, .78);
  border: 1px solid rgba(111, 227, 255, .28);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 14px 18px;
  color: #D5E2F2;
  font-size: 13.5px;
  font-weight: 500;
  display: flex; align-items: center; gap: 10px;
}
.about-visual .float-card svg { width: 20px; height: 20px; color: var(--cyan); }
.about-visual .fc-1 { top: 26px; left: 26px; }
.about-visual .fc-2 { bottom: 30px; right: 26px; }

.corp-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
.corp-fact {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.corp-fact svg { width: 22px; height: 22px; color: var(--primary); flex-shrink: 0; margin-top: 3px; }
.corp-fact b { display: block; font-size: 14.5px; color: var(--ink); }
.corp-fact span { font-size: 13px; color: var(--slate); }

/* 企业文化卡 */
.culture-card { text-align: center; padding: 38px 26px; position: relative; overflow: hidden; }
.culture-card::before {
  content: "";
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 46px; height: 3.5px; border-radius: 3px;
  background: var(--grad-blue);
}
.culture-card .cn-label { font-size: 13px; letter-spacing: .2em; color: var(--slate-light); margin-bottom: 12px; font-weight: 600; }
.culture-card h3 { font-size: 20px; margin-bottom: 12px; }
.culture-card p { font-size: 14px; }
.culture-card .motto { font-size: 22px; font-weight: 800; letter-spacing: .06em; background: var(--grad-blue); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* 时间轴 */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 30px; }
.timeline::before {
  content: "";
  position: absolute; left: 8px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(#C9DBF5, var(--primary) 60%, var(--cyan));
  border-radius: 2px;
}
.tl-item { position: relative; padding: 0 0 40px 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute; left: -30px; top: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #fff;
  border: 3.5px solid var(--primary);
  box-shadow: 0 0 0 5px rgba(18, 86, 214, .12);
}
.tl-year { display: inline-block; font-size: 14px; font-weight: 700; color: var(--primary); background: #EAF2FE; border-radius: 999px; padding: 3px 16px; margin-bottom: 10px; }
.tl-item h4 { font-size: 18px; margin-bottom: 7px; }
.tl-item p { font-size: 14.5px; max-width: 640px; }

/* 资质证书卡 */
.cert-card {
  display: flex; align-items: center; gap: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform .28s, box-shadow .28s;
}
.cert-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.cert-icon {
  flex-shrink: 0;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FFF6E3, #FFE9C7);
  color: #C77E14;
  display: flex; align-items: center; justify-content: center;
}
.cert-icon svg { width: 26px; height: 26px; }
.cert-card h3 { font-size: 16px; margin-bottom: 5px; }
.cert-card p { font-size: 13px; }
.cert-card .lvl { font-size: 12px; font-weight: 700; color: #C77E14; }

/* 集团背景卡 */
.group-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 48px;
}
.group-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: #EAF2FE; color: var(--primary-deep);
  font-size: 13px; font-weight: 600;
  margin-bottom: 16px;
}
.group-visual {
  border-radius: var(--radius);
  background: linear-gradient(150deg, #0A2547, #1256D6 85%);
  aspect-ratio: 4 / 3;
  position: relative;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.group-visual .gv-ring { position: absolute; border: 1px solid rgba(140, 190, 255, .22); border-radius: 50%; }
.group-visual svg { position: relative; z-index: 2; width: 40%; }
@media (max-width: 920px) { .group-card { grid-template-columns: 1fr; padding: 32px 24px; } }

/* ---------- 19. Business 页 ---------- */
.biz-block {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 56px;
  align-items: start;
  padding: 56px 0;
  border-top: 1px solid var(--line);
}
.biz-block:first-of-type { border-top: 0; padding-top: 0; }
.biz-block:nth-child(even) { grid-template-columns: 1fr 380px; }
.biz-block:nth-child(even) .biz-side { order: 2; }

.biz-side {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-deep);
  padding: 40px 32px;
  color: #fff;
}
.biz-side::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .08) 1px, transparent 1px);
  background-size: 36px 36px;
}
.biz-side-inner { position: relative; z-index: 2; }
.biz-side .side-no { font-size: 13px; letter-spacing: .3em; color: var(--cyan); font-weight: 700; margin-bottom: 14px; }
.biz-side h3 { color: #fff; font-size: 24px; margin-bottom: 12px; }
.biz-side p { color: #A9BEDC; font-size: 14.5px; margin-bottom: 22px; }
.biz-side .side-icon { width: 46px; height: 46px; color: var(--cyan-soft); margin-bottom: 20px; }

.biz-main h3 { font-size: 21px; margin-bottom: 14px; }
.biz-main > p { font-size: 15.5px; margin-bottom: 24px; }
.cap-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-bottom: 26px; }
.cap-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-mist);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
}
.cap-item svg { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; }
.mini-steps { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.mini-steps .ms {
  padding: 8px 18px;
  border-radius: 999px;
  background: #fff;
  border: 1.5px solid var(--line);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
}
.mini-steps .ms-arrow { color: #A9BAD3; font-size: 13px; }
@media (max-width: 1024px) {
  .biz-block, .biz-block:nth-child(even) { grid-template-columns: 1fr; gap: 32px; }
  .biz-block:nth-child(even) .biz-side { order: 0; }
}

/* ---------- 20. Products 页 ---------- */
.filter-bar { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 44px; }
.filter-btn {
  padding: 9px 22px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--slate);
  font-size: 14px;
  font-weight: 500;
  transition: all .22s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active { background: var(--grad-blue); border-color: transparent; color: #fff; box-shadow: var(--shadow-primary); }

.product-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .3s, box-shadow .3s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.product-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.product-cover .p-icon { width: 58px; height: 58px; color: rgba(255,255,255,.94); }
.product-body { padding: 26px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: 19px; margin-bottom: 10px; }
.product-body > p { font-size: 14.5px; margin-bottom: 18px; flex: 1; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; margin-bottom: 18px; }
.spec-table td { padding: 9px 12px; border: 1px solid var(--line); }
.spec-table td:first-child { background: var(--bg-soft); color: var(--slate); width: 38%; font-weight: 500; white-space: nowrap; }
.spec-table td:last-child { color: var(--ink); }

.notice-band {
  display: flex; align-items: center; gap: 12px;
  background: #EFF6FE;
  border: 1px dashed #B7D3F6;
  color: var(--primary-deep);
  border-radius: var(--radius);
  padding: 15px 22px;
  font-size: 14px;
  margin-top: 40px;
}
.notice-band svg { width: 19px; height: 19px; flex-shrink: 0; }
.notice-band.warn { background: #FFF9EC; border-color: #F0DCAE; color: #8A6410; }

/* ---------- 21. Solutions 页 ---------- */
.sol-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
  padding: 58px 0;
  border-top: 1px solid var(--line);
}
.sol-block:first-of-type { border-top: 0; padding-top: 0; }
.sol-block:nth-of-type(even) .sol-visual { order: 2; }

.sol-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
}
.sol-visual::after {
  content: "";
  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: 36px 36px;
}
.sol-visual svg { position: relative; z-index: 2; width: 34%; color: rgba(255,255,255,.92); }
.sol-visual .sol-tag {
  position: absolute; z-index: 3; top: 18px; left: 18px;
  padding: 6px 15px;
  border-radius: 999px;
  background: rgba(4, 16, 31, .5);
  border: 1px solid rgba(255,255,255,.28);
  color: #fff;
  font-size: 13px;
  backdrop-filter: blur(6px);
}

.sol-content h3 { font-size: 23px; margin-bottom: 8px; }
.sol-content .sol-sub { color: var(--primary); font-size: 14px; font-weight: 600; margin-bottom: 14px; }
.sol-content > p { font-size: 15px; margin-bottom: 20px; }
.sol-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 6px; }
.sol-box {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.sol-box h4 {
  display: flex; align-items: center; gap: 8px;
  font-size: 14.5px; margin-bottom: 12px;
}
.sol-box h4 svg { width: 17px; height: 17px; }
.sol-box.pain h4 { color: #B4550A; }
.sol-box.pain h4 svg { color: #E8862E; }
.sol-box.gain h4 { color: #0B7A5E; }
.sol-box.gain h4 svg { color: #14A07C; }
.sol-box ul li {
  position: relative;
  padding: 5px 0 5px 18px;
  font-size: 13.5px;
  color: var(--slate);
}
.sol-box ul li::before {
  content: "";
  position: absolute; left: 0; top: 13px;
  width: 7px; height: 7px;
  border-radius: 2px;
}
.sol-box.pain ul li::before { background: #F5C98A; }
.sol-box.gain ul li::before { background: #8AD9C2; }
@media (max-width: 920px) {
  .sol-block { grid-template-columns: 1fr; gap: 32px; padding: 44px 0; }
  .sol-block:nth-of-type(even) .sol-visual { order: 0; }
  .sol-cols { grid-template-columns: 1fr; }
}

/* ---------- 22. Cases 页 ---------- */
.case-toolbar { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 40px; }

/* ---------- 23. News 页 ---------- */
.tabs { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; margin-bottom: 44px; }
.tab-btn {
  padding: 10px 26px;
  border-radius: 999px;
  border: 1.5px solid var(--line);
  background: #fff;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--slate);
  transition: all .22s;
}
.tab-btn:hover { border-color: var(--primary); color: var(--primary); }
.tab-btn.active { background: var(--grad-blue); border-color: transparent; color: #fff; box-shadow: var(--shadow-primary); }

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.news-row {
  display: flex; gap: 24px; align-items: flex-start;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 28px;
  margin-bottom: 16px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.news-row:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); border-color: #C9DBF5; }
.news-row .nr-date {
  flex-shrink: 0;
  width: 76px;
  text-align: center;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 6px;
}
.news-row .nr-date b { display: block; font-size: 22px; color: var(--primary); line-height: 1.2; }
.news-row .nr-date span { font-size: 12px; color: var(--slate-light); }
.news-row .nr-main { flex: 1; }
.news-row h3 { font-size: 17.5px; margin-bottom: 7px; }
.news-row h3:hover { color: var(--primary); }
.news-row p { font-size: 14px; }
.news-row .nr-meta { display: flex; gap: 14px; margin-bottom: 8px; }
@media (max-width: 640px) { .news-row { flex-direction: column; } .news-row .nr-date { width: 100%; } }

.empty-hint {
  text-align: center;
  color: var(--slate-light);
  font-size: 14px;
  padding: 34px 0 10px;
}

/* ---------- 24. Join 页 ---------- */
.welfare-card { text-align: left; }
.welfare-card .card-icon { margin-bottom: 16px; }

.job-list { display: flex; flex-direction: column; gap: 14px; }
.job-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr auto;
  gap: 18px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 28px;
  transition: transform .25s, box-shadow .25s, border-color .25s;
}
.job-row:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: #C9DBF5; }
.job-row h3 { font-size: 17px; margin-bottom: 4px; }
.job-row .jr-sub { font-size: 13px; color: var(--slate-light); }
.job-row .jr-meta { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--slate); }
.job-row .jr-meta svg { width: 16px; height: 16px; color: var(--primary); }
.job-row .jr-salary { font-size: 14px; font-weight: 600; color: #0B7A5E; }
@media (max-width: 860px) {
  .job-row { grid-template-columns: 1fr; gap: 10px; }
}

/* ---------- 25. Support 页 ---------- */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .25s, box-shadow .25s;
}
.faq-item.open { border-color: #B7D3F6; box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.faq-q .faq-icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: #EAF2FE;
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  transition: transform .3s, background .3s, color .3s;
}
.faq-q .faq-icon svg { width: 15px; height: 15px; }
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a-inner { padding: 0 24px 22px; font-size: 14.5px; color: var(--slate); }

.doc-list { display: flex; flex-direction: column; gap: 12px; }
.doc-row {
  display: flex; align-items: center; gap: 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  transition: transform .25s, box-shadow .25s;
}
.doc-row:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.doc-row .doc-icon {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: #EFF4FB;
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.doc-row .doc-icon svg { width: 21px; height: 21px; }
.doc-row .doc-main { flex: 1; }
.doc-row h4 { font-size: 15.5px; margin-bottom: 3px; }
.doc-row p { font-size: 12.5px; }

/* ---------- 26. Contact 页 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.35fr; gap: 30px; align-items: start; }
@media (max-width: 920px) { .contact-grid { grid-template-columns: 1fr; } }

.info-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
}
.info-row {
  display: flex; gap: 16px;
  padding: 17px 0;
  border-bottom: 1px dashed var(--line);
}
.info-row:last-child { border-bottom: 0; }
.info-row .ir-icon {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: #EFF4FB;
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
}
.info-row .ir-icon svg { width: 20px; height: 20px; }
.info-row h4 { font-size: 13.5px; color: var(--slate-light); font-weight: 600; margin-bottom: 3px; }
.info-row p { font-size: 15px; color: var(--ink); font-weight: 500; }

.form-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 40px 38px;
  box-shadow: var(--shadow-sm);
}
.form-card h3 { font-size: 21px; margin-bottom: 6px; }
.form-card .form-sub { font-size: 14px; margin-bottom: 28px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.form-field label i { color: #E04848; font-style: normal; margin-left: 3px; }
.form-field input, .form-field select, .form-field textarea {
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 15px;
  background: var(--bg-mist);
  transition: border-color .2s, box-shadow .2s, background .2s;
  color: var(--ink);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(18, 86, 214, .1);
}
.form-field.error input, .form-field.error select, .form-field.error textarea { border-color: #E04848; background: #FEF7F7; }
.form-field .err-msg { font-size: 12.5px; color: #E04848; display: none; }
.form-field.error .err-msg { display: block; }
.form-footer { margin-top: 24px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.form-note { font-size: 12.5px; color: var(--slate-light); }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } .form-card { padding: 30px 22px; } }

.form-success {
  display: none;
  align-items: flex-start; gap: 14px;
  background: #EBFAF3;
  border: 1px solid #B4E8D2;
  color: #0B6B52;
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-top: 22px;
  font-size: 14.5px;
}
.form-success.show { display: flex; animation: fadeIn .4s; }
.form-success svg { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; }

.map-slot {
  margin-top: 30px;
  border: 1.5px dashed #B7CCE9;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 30% 40%, rgba(18, 86, 214, .05), transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(34, 199, 245, .05), transparent 40%),
    var(--bg-mist);
  min-height: 320px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px;
  text-align: center;
  padding: 40px 20px;
}
.map-slot svg { width: 44px; height: 44px; color: #9DB6D8; }
.map-slot b { font-size: 16px; color: var(--slate); font-weight: 600; }
.map-slot span { font-size: 13.5px; color: var(--slate-light); max-width: 420px; }

/* ---------- 27. Footer ---------- */
.footer { background: var(--navy-950); color: #93A8C4; position: relative; overflow: hidden; }
.footer::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 255, .04) 1px, transparent 1px);
  background-size: 44px 44px;
}
.footer-main {
  position: relative; z-index: 2;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding: 66px 0 46px;
}
.footer-brand .brand-text strong { color: #fff; }
.footer-brand p { color: #7E93B0; font-size: 13.8px; margin: 18px 0 20px; }
.footer-certs { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-certs span {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(140, 180, 240, .22);
  color: #8FA6C4;
}
.footer h4 { color: #fff; font-size: 15.5px; margin-bottom: 20px; letter-spacing: .04em; }
.footer-links li { margin-bottom: 11px; }
.footer-links a { font-size: 14px; color: #7E93B0; transition: color .2s, padding-left .2s; }
.footer-links a:hover { color: var(--cyan-soft); padding-left: 4px; }
.footer-contact li {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13.8px;
  margin-bottom: 13px;
  color: #7E93B0;
}
.footer-contact svg { width: 16px; height: 16px; color: var(--cyan); flex-shrink: 0; margin-top: 4px; }
.footer-contact a:hover { color: var(--cyan-soft); }

.footer-bottom {
  position: relative; z-index: 2;
  border-top: 1px solid rgba(140, 180, 240, .14);
  padding: 22px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap;
  font-size: 13px;
  color: #64789A;
}
.footer-bottom a:hover { color: var(--cyan-soft); }
@media (max-width: 980px) {
  .footer-main { grid-template-columns: 1fr 1fr; padding: 50px 0 36px; }
}
@media (max-width: 560px) {
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ---------- 28. 浮动组件 ---------- */
.back-top {
  position: fixed;
  right: 26px; bottom: 96px;
  width: 46px; height: 46px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transform: translateY(10px);
  transition: all .3s;
  z-index: 70;
}
.back-top svg { width: 20px; height: 20px; }
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--primary); border-color: var(--primary); color: #fff; }

.consult-fab {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 70;
  display: flex; flex-direction: column; align-items: flex-end; gap: 12px;
}
.consult-panel {
  position: absolute;
  right: 0; bottom: 62px;
  width: 280px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  opacity: 0; visibility: hidden;
  transform: translateY(10px) scale(.98);
  transform-origin: bottom right;
  transition: all .28s;
}
.consult-panel.open { opacity: 1; visibility: visible; transform: none; }
.consult-panel h4 { font-size: 15.5px; margin-bottom: 4px; }
.consult-panel .cp-sub { font-size: 12.5px; color: var(--slate-light); margin-bottom: 14px; }
.consult-panel .cp-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink);
  font-weight: 500;
  transition: background .2s;
}
.consult-panel .cp-row:hover { background: var(--bg-soft); }
.consult-panel .cp-row svg { width: 17px; height: 17px; color: var(--primary); }
.consult-btn {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--grad-blue);
  color: #fff;
  box-shadow: var(--shadow-primary);
  display: flex; align-items: center; justify-content: center;
  transition: transform .25s;
}
.consult-btn svg { width: 24px; height: 24px; }
.consult-btn:hover { transform: scale(1.07); }
@media (max-width: 560px) {
  .back-top { right: 18px; bottom: 90px; }
  .consult-fab { right: 18px; bottom: 18px; }
}

/* ---------- 29. Reveal 动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 30. 页面细节微调 ---------- */
.page-end-cta { padding-top: 20px; }
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }