/* =========================================================
   硕一科技官网样式表
   ========================================================= */

:root {
  --navy: #050b18;
  --navy-2: #0a1730;
  --navy-3: #102544;
  --blue: #1e5eff;
  --blue-2: #3b82f6;
  --cyan: #22d3ee;
  --gold: #e8b93c;
  --ink: #0c1a2e;
  --text: #40506b;
  --muted: #6b7a94;
  --bg: #ffffff;
  --bg-soft: #f4f7fd;
  --line: #e5ebf5;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 6px 20px rgba(12, 26, 46, .06);
  --shadow: 0 18px 50px rgba(12, 26, 46, .10);
  --shadow-lg: 0 34px 80px rgba(12, 26, 46, .16);
  --grad: linear-gradient(120deg, #1e5eff 0%, #22d3ee 100%);
  --grad-gold: linear-gradient(120deg, #e8b93c 0%, #f5d67a 100%);
  --container: 1200px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }

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

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), color .25s var(--ease);
}
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-lg { padding: 16px 34px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 12px 30px rgba(30, 94, 255, .34);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(30, 94, 255, .46); }

.btn-ghost {
  background: rgba(255, 255, 255, .06);
  color: #fff;
  border-color: rgba(255, 255, 255, .35);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .14); transform: translateY(-2px); }

.btn-light { background: #fff; color: var(--blue); box-shadow: 0 14px 34px rgba(0, 0, 0, .18); }
.btn-light:hover { transform: translateY(-2px); }

/* ---------- 头部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 14px 0;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), padding .35s var(--ease);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 30px rgba(12, 26, 46, .08);
  padding: 8px 0;
}
.header-inner { display: flex; align-items: center; gap: 24px; }

.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark { filter: drop-shadow(0 6px 14px rgba(30, 94, 255, .35)); }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 19px; color: #fff; letter-spacing: .5px; transition: color .3s; }
.logo-text em { font-size: 10px; font-style: normal; letter-spacing: 3px; color: rgba(255, 255, 255, .55); transition: color .3s; }

.site-header.scrolled .logo-text strong { color: var(--ink); }
.site-header.scrolled .logo-text em { color: var(--muted); }

.main-nav { display: flex; gap: 6px; margin-left: auto; }
.main-nav a {
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, .82);
}
.main-nav a:hover { color: #fff; background: rgba(255, 255, 255, .1); }
.site-header.scrolled .main-nav a { color: var(--text); }
.site-header.scrolled .main-nav a:hover { color: var(--blue); background: var(--bg-soft); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-weight: 600;
  font-size: 15px;
  color: #fff;
}
.header-phone svg { color: var(--cyan); }
.site-header.scrolled .header-phone { color: var(--ink); }
.site-header.scrolled .header-phone svg { color: var(--blue); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px; height: 2px; border-radius: 2px;
  background: #fff;
  transition: transform .3s var(--ease), opacity .3s var(--ease), background .3s;
}
.site-header.scrolled .nav-toggle span { background: var(--ink); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(1000px 600px at 78% 8%, rgba(34, 211, 238, .20), transparent 60%),
    radial-gradient(900px 620px at 8% 92%, rgba(30, 94, 255, .28), transparent 62%),
    linear-gradient(160deg, #050b18 0%, #0a1730 48%, #0c1e3d 100%);
  color: #fff;
  padding: 168px 0 0;
  overflow: hidden;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; }
.hero-glow {
  position: absolute;
  width: 620px; height: 620px;
  right: -140px; top: -160px;
  background: radial-gradient(circle, rgba(34, 211, 238, .30), transparent 65%);
  filter: blur(20px);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 60px;
  align-items: center;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  font-size: 13.5px;
  letter-spacing: .5px;
  color: #cfe0ff;
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, .7);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, .7); }
  70% { box-shadow: 0 0 0 12px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}

.hero-title {
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.5px;
  margin-bottom: 24px;
}
.grad-text {
  background: linear-gradient(100deg, #6ea8ff 0%, #22d3ee 55%, #a5f3fc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-desc {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(226, 236, 255, .78);
  max-width: 620px;
  margin-bottom: 34px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tags li {
  padding: 7px 15px;
  border-radius: 8px;
  font-size: 13.5px;
  color: #b9ccf0;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
}

/* Hero 可视化卡片 */
.hero-visual { position: relative; display: flex; justify-content: center; }
.code-card {
  position: relative;
  width: 100%;
  max-width: 380px;
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(160deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .04));
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(18px);
  box-shadow: 0 40px 80px rgba(0, 0, 0, .4);
  animation: floatY 6s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}
.code-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13.5px;
  color: #cfe0ff;
  margin-bottom: 18px;
}
.code-status {
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 12px;
  color: #06251f;
  background: linear-gradient(120deg, #34d399, #22d3ee);
  font-weight: 600;
}
.qr-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  background: #fff;
  padding: 16px;
  overflow: hidden;
}
.qr-grid {
  width: 100%; height: 100%;
  background-image:
    linear-gradient(90deg, #0c1a2e 50%, transparent 50%),
    linear-gradient(0deg, #0c1a2e 50%, transparent 50%),
    linear-gradient(90deg, #0c1a2e 50%, transparent 50%),
    linear-gradient(0deg, #0c1a2e 50%, transparent 50%);
  background-size: 20% 20%, 20% 20%, 6.6% 6.6%, 6.6% 6.6%;
  background-position: 0 0, 0 0, 4px 4px, 4px 4px;
  background-blend-mode: difference;
  opacity: .92;
  border-radius: 6px;
}
.scan-line {
  position: absolute;
  left: 12px; right: 12px; height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  box-shadow: 0 0 18px 4px rgba(34, 211, 238, .7);
  animation: scan 2.6s ease-in-out infinite;
}
@keyframes scan {
  0% { top: 10%; }
  50% { top: 88%; }
  100% { top: 10%; }
}
.code-meta { margin-top: 18px; display: grid; gap: 10px; }
.code-meta div {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13.5px;
  padding-bottom: 9px;
  border-bottom: 1px dashed rgba(255, 255, 255, .14);
}
.code-meta div:last-child { border-bottom: 0; padding-bottom: 0; }
.code-meta span { color: rgba(200, 216, 245, .68); }
.code-meta strong { color: #fff; font-weight: 600; letter-spacing: .5px; }

.float-chip {
  position: absolute;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 13px;
  color: #dbe7ff;
  background: rgba(10, 23, 48, .82);
  border: 1px solid rgba(255, 255, 255, .14);
  backdrop-filter: blur(10px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .34);
  animation: floatY 5s ease-in-out infinite;
}
.float-chip b { color: var(--cyan); }
.chip-1 { top: 12%; left: -22px; animation-delay: .4s; }
.chip-2 { bottom: 22%; right: -18px; animation-delay: 1.1s; }
.chip-3 { bottom: 2%; left: -8px; animation-delay: 1.8s; }

/* Hero 数据条 */
.hero-stats {
  position: relative;
  background: rgba(255, 255, 255, .05);
  border-top: 1px solid rgba(255, 255, 255, .1);
  backdrop-filter: blur(10px);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding-top: 30px;
  padding-bottom: 30px;
}
.stat {
  text-align: center;
  padding: 6px 12px;
  border-right: 1px solid rgba(255, 255, 255, .1);
}
.stat:last-child { border-right: 0; }
.stat-num {
  display: block;
  font-size: clamp(28px, 3vw, 42px);
  font-weight: 800;
  letter-spacing: -.5px;
  background: linear-gradient(120deg, #fff, #7dd3fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat span { font-size: 14px; color: rgba(206, 222, 248, .72); }

/* ---------- 信任背书 ---------- */
.trust { padding: 56px 0; background: var(--bg); }
.trust-label { text-align: center; font-size: 14.5px; color: var(--muted); margin-bottom: 26px; }
.trust-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 16px;
}
.trust-logos span {
  padding: 10px 22px;
  border-radius: 10px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  opacity: .78;
  transition: transform .25s var(--ease), opacity .25s, box-shadow .25s;
}
.trust-logos span:hover { opacity: 1; transform: translateY(-3px); box-shadow: var(--shadow-sm); }

/* ---------- 通用 Section ---------- */
.section { padding: 100px 0; }
.section-muted { background: var(--bg-soft); }
.section-dark {
  background:
    radial-gradient(900px 500px at 85% 0%, rgba(34, 211, 238, .16), transparent 60%),
    radial-gradient(800px 520px at 5% 100%, rgba(30, 94, 255, .22), transparent 62%),
    linear-gradient(160deg, #060f22 0%, #0b1c38 100%);
  color: #fff;
}
.section-head { max-width: 780px; margin: 0 auto 58px; text-align: center; }
.eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--blue);
  margin-bottom: 14px;
}
.section-dark .eyebrow { color: var(--cyan); }
.section-title {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.5px;
  color: var(--ink);
  margin-bottom: 18px;
}
.section-dark .section-title { color: #fff; }
.section-sub { font-size: 16.5px; color: var(--muted); }
.section-dark .section-sub { color: rgba(206, 222, 248, .72); }

/* ---------- 核心产品卡片 ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.card:hover { transform: translateY(-8px); box-shadow: var(--shadow); border-color: #d6e2fb; }
.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, rgba(30, 94, 255, .12), rgba(34, 211, 238, .14));
  color: var(--blue);
  margin-bottom: 22px;
}
.card-icon svg { width: 28px; height: 28px; }
.card h3 { font-size: 20px; font-weight: 700; color: var(--ink); margin-bottom: 12px; }
.card p { font-size: 15px; color: var(--text); margin-bottom: 18px; }
.card-list { display: grid; gap: 9px; }
.card-list li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  color: var(--muted);
}
.card-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 12px; height: 12px;
  border-radius: 4px;
  background: var(--grad);
  opacity: .85;
}
.card-feature {
  background: linear-gradient(165deg, #0c1c3a, #123058);
  border-color: transparent;
  color: #dbe7ff;
}
.card-feature h3 { color: #fff; }
.card-feature p { color: rgba(206, 222, 248, .78); }
.card-feature .card-list li { color: rgba(206, 222, 248, .78); }
.card-feature .card-icon {
  background: rgba(255, 255, 255, .1);
  color: var(--cyan);
}
.card-feature.alt {
  background: linear-gradient(165deg, #2a1f06, #4a3708);
}
.card-feature.alt .card-icon { color: var(--gold); }
.card-feature.alt .card-list li::before { background: var(--grad-gold); }

/* ---------- 行业解决方案 ---------- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.solution {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  transition: transform .35s var(--ease), background .35s, border-color .35s;
}
.solution:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, .09);
  border-color: rgba(34, 211, 238, .45);
}
.solution-no {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 16px;
}
.solution h3 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 10px; }
.solution p { font-size: 15px; color: rgba(206, 222, 248, .72); }

/* ---------- 服务流程 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 34px 26px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s;
}
.step:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.step::after {
  content: "";
  position: absolute;
  top: 46px; right: -16px;
  width: 30px; height: 2px;
  background: linear-gradient(90deg, var(--blue), transparent);
  opacity: .5;
}
.step:last-child::after { display: none; }
.step-no {
  display: grid;
  place-items: center;
  width: 46px; height: 46px;
  border-radius: 12px;
  font-size: 17px;
  font-weight: 800;
  color: #fff;
  background: var(--grad);
  margin-bottom: 20px;
  box-shadow: 0 10px 24px rgba(30, 94, 255, .3);
}
.step h3 { font-size: 18.5px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.step p { font-size: 14.5px; color: var(--muted); }

/* ---------- 优势 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.adv {
  padding: 32px 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .35s var(--ease), box-shadow .35s, border-color .35s;
}
.adv:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: #d6e2fb; }
.adv-icon {
  width: 50px; height: 50px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, #0c1c3a, #1e5eff);
  color: #fff;
  margin-bottom: 20px;
}
.adv-icon svg { width: 25px; height: 25px; }
.adv h3 { font-size: 18.5px; font-weight: 700; color: var(--ink); margin-bottom: 10px; }
.adv p { font-size: 14.5px; color: var(--muted); }

/* ---------- 关于我们 ---------- */
.about-inner {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 60px;
  align-items: center;
}
.about-copy p { font-size: 16px; margin-bottom: 18px; }
.about-copy strong { color: var(--ink); }
.about-points { display: grid; gap: 14px; margin: 26px 0 30px; }
.about-points div {
  display: flex;
  gap: 16px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border-left: 3px solid var(--blue);
}
.about-points strong { min-width: 64px; color: var(--ink); }
.about-points span { color: var(--text); }

.about-visual { display: grid; gap: 18px; }
.about-stat-card {
  padding: 26px 28px;
  border-radius: var(--radius);
  background: linear-gradient(150deg, #0c1c3a, #14335c);
  color: #fff;
  box-shadow: var(--shadow);
  transition: transform .35s var(--ease);
}
.about-stat-card:hover { transform: translateX(6px); }
.about-stat-card strong {
  display: block;
  font-size: 34px;
  font-weight: 800;
  background: linear-gradient(120deg, #fff, #7dd3fc);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.about-stat-card span { font-size: 14.5px; color: rgba(206, 222, 248, .75); }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background:
    radial-gradient(700px 400px at 80% 20%, rgba(34, 211, 238, .35), transparent 60%),
    linear-gradient(120deg, #1e5eff, #0b3bbf);
  color: #fff;
  padding: 64px 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(24px, 2.8vw, 34px); font-weight: 800; margin-bottom: 10px; }
.cta-inner p { color: rgba(255, 255, 255, .82); font-size: 16px; }

/* ---------- 联系我们 ---------- */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 60px;
  align-items: start;
}
.contact-list { display: grid; gap: 20px; margin-top: 34px; }
.contact-list li { display: flex; gap: 16px; align-items: flex-start; }
.ci-icon {
  flex: none;
  width: 46px; height: 46px;
  border-radius: 13px;
  display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(30, 94, 255, .12), rgba(34, 211, 238, .16));
  color: var(--blue);
}
.ci-icon svg { width: 22px; height: 22px; }
.contact-list strong { display: block; font-size: 14px; color: var(--muted); font-weight: 600; margin-bottom: 3px; }
.contact-list a, .contact-list span { font-size: 16px; color: var(--ink); font-weight: 600; }
.contact-list a:hover { color: var(--blue); }

.contact-form {
  padding: 38px 36px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.contact-form h3 { font-size: 21px; font-weight: 700; color: var(--ink); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: block; margin-bottom: 16px; }
.field > span { display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-soft);
  font-size: 15px;
  transition: border-color .25s, background .25s, box-shadow .25s;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(30, 94, 255, .1);
}
.field input.invalid, .field select.invalid { border-color: #ef4444; background: #fff5f5; }
.form-tip { margin-top: 14px; font-size: 14px; min-height: 20px; }
.form-tip.ok { color: #10b981; }
.form-tip.err { color: #ef4444; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(206, 222, 248, .68); padding-top: 70px; }
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding-bottom: 50px;
}
.footer-brand p { font-size: 14px; margin-top: 18px; line-height: 1.8; }
.logo-light .logo-text strong { color: #fff; }
.logo-light .logo-text em { color: rgba(255, 255, 255, .5); }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; }
.footer-col ul { display: grid; gap: 11px; }
.footer-col a { font-size: 14.5px; color: rgba(206, 222, 248, .68); }
.footer-col a:hover { color: var(--cyan); }
.footer-contact p { font-size: 14.5px; margin-bottom: 11px; }
.footer-contact a { color: var(--cyan); }

.footer-seo {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 26px;
  padding-bottom: 26px;
}
.footer-seo p { font-size: 13px; line-height: 1.9; color: rgba(160, 180, 214, .55); }

.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 22px 0; }
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: rgba(160, 180, 214, .6);
}

/* ---------- 悬浮咨询 ---------- */
.float-cta {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 20px;
  border-radius: 999px;
  background: var(--grad);
  color: #fff;
  font-weight: 600;
  font-size: 14.5px;
  box-shadow: 0 16px 36px rgba(30, 94, 255, .42);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.float-cta:hover { transform: translateY(-4px) scale(1.03); box-shadow: 0 22px 44px rgba(30, 94, 255, .55); }
.float-cta svg { width: 18px; height: 18px; }

/* ---------- 滚动出现动画 ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-phone { display: none; }

  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 16px; right: 16px;
    margin-top: 10px;
    padding: 14px;
    border-radius: var(--radius);
    background: #fff;
    box-shadow: var(--shadow-lg);
    gap: 4px;
  }
  .main-nav.open a { color: var(--text); padding: 12px 14px; }
  .main-nav.open a:hover { color: var(--blue); background: var(--bg-soft); }

  .hero-inner { grid-template-columns: 1fr; gap: 50px; padding-bottom: 60px; }
  .hero-visual { order: 2; }
  .cards-grid, .solutions-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step::after { display: none; }
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 44px; }
  .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .hero { padding-top: 130px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 0; }
  .stat:nth-child(2) { border-right: 0; }
  .cards-grid, .solutions-grid, .adv-grid, .steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .float-chip { display: none; }
  .contact-form { padding: 28px 22px; }
  .footer-bottom-inner { justify-content: center; text-align: center; }
  .float-cta { right: 14px; bottom: 16px; padding: 12px 16px; }
  .cta-inner { flex-direction: column; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}