/* ============================================================
   江西百岸恒业科技有限公司 · 官网样式
   设计基调：深海蓝底 + 新能源绿 + 电光青，工业科技风
   ============================================================ */

:root {
  /* 品牌色 */
  --navy-900: #061223;
  --navy-800: #0A1B31;
  --navy-700: #102743;
  --navy-600: #17365A;
  --brand: #00D68F;
  --brand-dark: #00A96F;
  --cyan: #2BA8F5;
  --amber: #FF9F2E;
  --danger: #FF5C5C;

  /* 中性色 */
  --ink: #0E1A2A;
  --text: #24344A;
  --text-soft: #5A6B82;
  --text-mute: #8A9AAF;
  --line: #E2E9F2;
  --line-soft: #EEF3F9;
  --bg: #F6F9FC;
  --white: #FFFFFF;

  /* 尺寸 */
  --wrap: 1200px;
  --radius-s: 8px;
  --radius: 14px;
  --radius-l: 22px;
  --shadow-s: 0 2px 10px rgba(10, 27, 49, .06);
  --shadow: 0 10px 34px rgba(10, 27, 49, .09);
  --shadow-l: 0 22px 60px rgba(10, 27, 49, .16);

  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 86px; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC",
    "Hiragino Sans GB", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }

h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -.01em;
}

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

/* ============================ 顶部导航 ============================ */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  background: rgba(6, 18, 35, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  transition: background .3s var(--ease);
}
.header.scrolled { background: rgba(6, 18, 35, .97); }

.nav { display: flex; align-items: center; gap: 40px; height: 72px; }

.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-mark {
  width: 50px; height: 50px; flex-shrink: 0;
  display: grid; place-items: center;
}
.logo-mark img { width: 100%; height: 100%; object-fit: contain; }
.logo-mark svg { width: 24px; height: 24px; }
.logo-text b {
  display: block; font-size: 19px; color: #fff; letter-spacing: 1px; line-height: 1.25;
}
.logo-text span {
  display: block; font-size: 10px; color: rgba(255, 255, 255, .5);
  letter-spacing: 2px; text-transform: uppercase;
}

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-menu a {
  padding: 9px 16px; border-radius: 8px; font-size: 15px;
  color: rgba(255, 255, 255, .78); transition: all .22s var(--ease);
  position: relative;
}
.nav-menu a:hover { color: #fff; background: rgba(255, 255, 255, .08); }
.nav-menu a.active { color: var(--brand); }
.nav-menu a.active::after {
  content: ""; position: absolute; left: 50%; bottom: 2px;
  transform: translateX(-50%);
  width: 18px; height: 2px; border-radius: 2px; background: var(--brand);
}

.nav-tel {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 20px; border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), #17c4d8);
  color: #04261a !important; font-weight: 700; font-size: 15px;
  box-shadow: 0 6px 20px rgba(0, 214, 143, .28);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.nav-tel:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0, 214, 143, .4); }
.nav-tel svg { width: 17px; height: 17px; }

.nav-toggle {
  display: none; width: 42px; height: 42px; border-radius: 10px;
  background: rgba(255, 255, 255, .1); margin-left: auto;
  align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; background: #fff;
  border-radius: 2px; position: relative; transition: .3s var(--ease);
}
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 20px; height: 2px;
  background: #fff; border-radius: 2px; transition: .3s var(--ease);
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* ============================ 通用区块 ============================ */
.section { padding: 92px 0; position: relative; }
.section.gray { background: var(--bg); }
.section.dark { background: var(--navy-900); color: rgba(255, 255, 255, .78); }
.section.dark h2, .section.dark h3, .section.dark h4 { color: #fff; }

.sec-head { max-width: 760px; margin-bottom: 56px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 15px; border-radius: 999px;
  background: rgba(0, 214, 143, .1); color: var(--brand-dark);
  font-size: 13px; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 18px;
}
.section.dark .eyebrow {
  background: rgba(0, 214, 143, .14); color: var(--brand);
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: currentColor; box-shadow: 0 0 0 3px rgba(0, 214, 143, .2);
}

.sec-head h2 { font-size: clamp(28px, 3.4vw, 40px); margin-bottom: 16px; }
.sec-head p { color: var(--text-soft); font-size: 17px; }
.section.dark .sec-head p { color: rgba(255, 255, 255, .62); }

/* ============================ 按钮 ============================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 14px 30px; border-radius: 999px;
  font-size: 15px; font-weight: 600; transition: all .25s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), #17c4d8);
  color: #04261a; box-shadow: 0 10px 28px rgba(0, 214, 143, .3);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 38px rgba(0, 214, 143, .42); }
.btn-ghost {
  border: 1.5px solid rgba(255, 255, 255, .28); color: #fff;
}
.btn-ghost:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .55); }
.btn-line {
  border: 1.5px solid var(--line); color: var(--ink); background: #fff;
}
.btn-line:hover { border-color: var(--brand); color: var(--brand-dark); background: rgba(0, 214, 143, .05); }

/* ============================ HERO ============================ */
.hero {
  position: relative; min-height: min(100vh, 880px); display: flex; align-items: center;
  padding: 130px 0 90px; overflow: hidden;
  background:
    radial-gradient(1100px 620px at 78% 22%, rgba(0, 214, 143, .17), transparent 62%),
    radial-gradient(900px 560px at 12% 82%, rgba(43, 168, 245, .17), transparent 60%),
    linear-gradient(160deg, #061223 0%, #0A1B31 52%, #0C2440 100%);
}

.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(circle at 50% 45%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 45%, #000 30%, transparent 78%);
}

.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.08fr .92fr;
  gap: 60px; align-items: center;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 18px; border-radius: 999px; margin-bottom: 26px;
  background: rgba(0, 214, 143, .12); border: 1px solid rgba(0, 214, 143, .34);
  color: var(--brand); font-size: 13.5px; font-weight: 600;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--brand);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 214, 143, .65); }
  50% { box-shadow: 0 0 0 8px rgba(0, 214, 143, 0); }
}

.hero h1 {
  font-size: clamp(34px, 5vw, 58px); color: #fff;
  line-height: 1.18; margin-bottom: 22px; font-weight: 800;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--brand), #56e0ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-desc {
  font-size: 17.5px; color: rgba(255, 255, 255, .68);
  max-width: 560px; margin-bottom: 34px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 20px; padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero-stats b {
  display: block; font-size: clamp(24px, 2.7vw, 34px); color: #fff;
  font-weight: 800; line-height: 1.15;
}
.hero-stats b span { color: var(--brand); }
.hero-stats small {
  font-size: 13px; color: rgba(255, 255, 255, .5); letter-spacing: .3px;
}

/* Hero 视觉 */
.hero-visual { position: relative; }
.hero-card {
  border-radius: var(--radius-l); overflow: hidden;
  background: linear-gradient(155deg, rgba(255, 255, 255, .11), rgba(255, 255, 255, .035));
  border: 1px solid rgba(255, 255, 255, .16);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-l);
}
.hero-visual svg { width: 100%; height: auto; display: block; }

.hero-float {
  position: absolute; padding: 13px 18px; border-radius: 14px;
  background: rgba(255, 255, 255, .96); box-shadow: var(--shadow-l);
  display: flex; align-items: center; gap: 11px;
  animation: floaty 4.5s ease-in-out infinite;
}
.hero-float.f1 { top: 26px; right: -18px; }
.hero-float.f2 { bottom: 34px; left: -22px; animation-delay: 1.4s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-13px); }
}
.hero-float .ic {
  width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(0, 214, 143, .16), rgba(43, 168, 245, .16));
}
.hero-float .ic svg { width: 20px; height: 20px; }
.hero-float b { display: block; font-size: 15px; color: var(--ink); line-height: 1.3; }
.hero-float small { font-size: 12px; color: var(--text-mute); }

.hero-shape {
  position: absolute; border-radius: 50%; filter: blur(70px); z-index: 1;
}
.hero-shape.s1 {
  width: 300px; height: 300px; background: rgba(0, 214, 143, .28); top: -50px; right: -60px;
}
.hero-shape.s2 {
  width: 240px; height: 240px; background: rgba(43, 168, 245, .26); bottom: -40px; left: -50px;
}

/* ============================ 业务板块卡片 ============================ */
.biz-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}

.biz-card {
  position: relative; padding: 36px 30px 32px;
  border-radius: var(--radius); background: #fff;
  border: 1px solid var(--line); overflow: hidden;
  transition: all .3s var(--ease);
}
.biz-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand), var(--cyan));
  transform: scaleX(0); transform-origin: left; transition: transform .4s var(--ease);
}
.biz-card:hover { transform: translateY(-7px); box-shadow: var(--shadow); border-color: transparent; }
.biz-card:hover::before { transform: scaleX(1); }

.biz-ic {
  width: 58px; height: 58px; border-radius: 16px; margin-bottom: 22px;
  display: grid; place-items: center; color: var(--brand-dark);
  background: linear-gradient(135deg, rgba(0, 214, 143, .14), rgba(43, 168, 245, .1));
}
.biz-ic svg { width: 28px; height: 28px; }
.biz-card h3 { font-size: 20px; margin-bottom: 11px; }
.biz-card p { color: var(--text-soft); font-size: 15px; margin-bottom: 20px; }

.biz-list { display: flex; flex-wrap: wrap; gap: 8px; }
.biz-list li {
  padding: 5px 13px; border-radius: 999px; background: var(--bg);
  font-size: 13px; color: var(--text-soft); border: 1px solid var(--line-soft);
}

.biz-no {
  position: absolute; top: 22px; right: 26px;
  font-size: 46px; font-weight: 800; color: var(--line);
  line-height: 1; letter-spacing: -2px;
}

/* ============================ 解决方案（左右交替） ============================ */
.sol-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 58px; align-items: center;
  margin-bottom: 84px;
}
.sol-row:last-child { margin-bottom: 0; }
.sol-row.flip .sol-text { order: 2; }
.sol-row.flip .sol-figure { order: 1; }

.sol-figure {
  border-radius: var(--radius-l); overflow: hidden;
  position: relative; aspect-ratio: 3 / 2;
  box-shadow: var(--shadow-l);
  background: var(--navy-800);
}
.sol-figure img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .6s var(--ease);
}
.sol-row:hover .sol-figure img { transform: scale(1.04); }
/* 图片底部渐变遮罩，保证叠加文字可读 */
.sol-figure::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,18,35,.15) 0%, rgba(6,18,35,0) 38%, rgba(6,18,35,.55) 100%);
  pointer-events: none;
}
.sol-figure figcaption {
  position: absolute; left: 24px; right: 24px; bottom: 22px; z-index: 2;
  display: flex; align-items: center; gap: 10px;
  color: #fff; font-size: 14px; font-weight: 600; letter-spacing: .5px;
  text-shadow: 0 2px 10px rgba(0,0,0,.5);
}
.sol-figure figcaption::before {
  content: ""; width: 3px; height: 16px; border-radius: 2px;
  background: var(--brand); flex-shrink: 0;
}

/* ========== 为什么选我们配图 ========== */
.adv-photo {
  width: 100%; aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--navy-800);
}
.adv-photo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .6s var(--ease);
}
.adv-card:hover .adv-photo img { transform: scale(1.06); }

.sol-text h3 { font-size: 27px; margin-bottom: 14px; }
.sol-text > p { color: var(--text-soft); margin-bottom: 26px; }
.sol-points { display: grid; gap: 15px; margin-bottom: 28px; }
.sol-points li { display: flex; gap: 12px; align-items: flex-start; }
.sol-points .ck {
  flex-shrink: 0; width: 23px; height: 23px; border-radius: 50%; margin-top: 3px;
  background: rgba(0, 214, 143, .13); color: var(--brand-dark);
  display: grid; place-items: center;
}
.sol-points .ck svg { width: 13px; height: 13px; }
.sol-points b { display: block; color: var(--ink); font-size: 16px; margin-bottom: 2px; }
.sol-points span { font-size: 14.5px; color: var(--text-soft); line-height: 1.65; }

/* ============================ 数字条 ============================ */
.stat-band {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat-box {
  text-align: center; padding: 40px 20px;
  border-radius: var(--radius); background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: all .3s var(--ease);
}
.stat-box:hover { background: rgba(255, 255, 255, .085); border-color: rgba(0, 214, 143, .4); }
.stat-box b {
  display: block; font-size: clamp(32px, 4vw, 46px); font-weight: 800;
  color: var(--brand); line-height: 1.1;
}
.stat-box span { font-size: 15px; color: rgba(255, 255, 255, .65); }

/* ============================ 优势 ============================ */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.adv-card {
  padding: 0; border-radius: var(--radius); overflow: hidden;
  background: #fff; border: 1px solid var(--line);
  transition: all .3s var(--ease);
  display: flex; flex-direction: column;
}
.adv-card:hover { box-shadow: var(--shadow); border-color: transparent; transform: translateY(-5px); }
.adv-ic {
  width: 50px; height: 50px; border-radius: 13px; margin-bottom: 18px;
  display: grid; place-items: center;
  background: var(--navy-800); color: var(--brand);
}
.adv-ic svg { width: 24px; height: 24px; }
.adv-body { padding: 26px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.adv-body h4 { font-size: 18.5px; margin-bottom: 9px; }
.adv-body p { font-size: 14.5px; color: var(--text-soft); }

/* ============================ 流程 ============================ */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.flow::before {
  content: ""; position: absolute; top: 34px; left: 8%; right: 8%;
  height: 2px; background: linear-gradient(90deg, var(--brand), var(--cyan));
  opacity: .32;
}
.flow-step { position: relative; text-align: center; padding: 0 6px; }
.flow-no {
  width: 68px; height: 68px; border-radius: 50%; margin: 0 auto 20px;
  display: grid; place-items: center; position: relative; z-index: 1;
  background: #fff; border: 2px solid var(--brand);
  font-size: 22px; font-weight: 800; color: var(--brand-dark);
  box-shadow: 0 0 0 8px var(--bg);
  transition: all .3s var(--ease);
}
.section:not(.gray) .flow-no { box-shadow: 0 0 0 8px var(--white); }
.flow-step:hover .flow-no { background: var(--brand); color: #04261a; transform: scale(1.08); }
.flow-step h4 { font-size: 17px; margin-bottom: 8px; }
.flow-step p { font-size: 14px; color: var(--text-soft); }

/* ============================ 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(--line); transition: all .3s var(--ease);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.case-cover {
  aspect-ratio: 16 / 9; position: relative; overflow: hidden;
  background: var(--navy-800);
}
.case-cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .6s var(--ease);
}
.case-card:hover .case-cover img { transform: scale(1.07); }
.case-cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(6,18,35,.3) 0%, rgba(6,18,35,0) 40%);
  pointer-events: none;
}
.case-tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 5px 13px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: rgba(0, 214, 143, .92); color: #04261a;
}
.case-body { padding: 22px 22px 24px; }
.case-body h4 { font-size: 17.5px; margin-bottom: 9px; }
.case-body p { font-size: 14.5px; color: var(--text-soft); margin-bottom: 15px; }
.case-meta {
  display: flex; gap: 8px; flex-wrap: wrap; padding-top: 14px;
  border-top: 1px dashed var(--line);
}
.case-meta span {
  font-size: 12.5px; color: var(--text-mute);
  padding: 3px 10px; border-radius: 6px; background: var(--bg);
}

/* ============================ 联系 ============================ */
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1.12fr; gap: 48px;
  align-items: start;
}
.contact-info { display: grid; gap: 18px; }
.ct-item {
  display: flex; gap: 17px; padding: 22px 24px;
  border-radius: var(--radius); background: #fff;
  border: 1px solid var(--line); transition: all .3s var(--ease);
}
.ct-item:hover { border-color: var(--brand); box-shadow: var(--shadow-s); }
.ct-ic {
  flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(0, 214, 143, .14), rgba(43, 168, 245, .12));
  color: var(--brand-dark);
}
.ct-ic svg { width: 22px; height: 22px; }
.ct-item b { display: block; color: var(--ink); font-size: 15.5px; margin-bottom: 4px; }
.ct-item span { font-size: 14.5px; color: var(--text-soft); }
.ct-item .tel { font-size: 21px; font-weight: 800; color: var(--ink); letter-spacing: .5px; }

.form-card {
  padding: 36px; border-radius: var(--radius-l); background: #fff;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.form-card h3 { font-size: 22px; margin-bottom: 8px; }
.form-card > p { color: var(--text-soft); font-size: 14.5px; margin-bottom: 26px; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 16px; }
.field label {
  display: block; font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 7px;
}
.field label i { color: var(--danger); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 15px; border-radius: 10px;
  border: 1.5px solid var(--line); background: var(--bg);
  font-family: inherit; font-size: 15px; color: var(--text);
  transition: all .2s var(--ease);
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand); background: #fff;
  box-shadow: 0 0 0 3px rgba(0, 214, 143, .13);
}
.form-card .btn { width: 100%; }
.form-tip {
  margin-top: 14px; font-size: 13px; color: var(--text-mute); text-align: center;
}
.form-msg {
  margin-top: 14px; padding: 12px 16px; border-radius: 10px;
  font-size: 14px; display: none;
}
.form-msg.ok { display: block; background: rgba(0, 214, 143, .1); color: var(--brand-dark); border: 1px solid rgba(0, 214, 143, .3); }
.form-msg.err { display: block; background: rgba(255, 92, 92, .08); color: #D93636; border: 1px solid rgba(255, 92, 92, .25); }

/* ============================ 页脚 ============================ */
.footer {
  background: var(--navy-900); color: rgba(255, 255, 255, .62);
  padding: 66px 0 0; font-size: 14.5px;
}
.foot-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 44px;
  padding-bottom: 46px;
}
.foot-brand .logo { margin-bottom: 18px; }
.foot-brand p { max-width: 320px; line-height: 1.85; font-size: 14px; }
.foot-col h5 {
  color: #fff; font-size: 15.5px; margin-bottom: 18px; font-weight: 600;
}
.foot-col li { margin-bottom: 11px; }
.foot-col a { transition: color .2s; }
.foot-col a:hover { color: var(--brand); }

.foot-contact li { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 13px; }
.foot-contact svg { width: 16px; height: 16px; color: var(--brand); flex-shrink: 0; margin-top: 5px; }
.foot-contact .tel { color: #fff; font-size: 19px; font-weight: 700; }

.foot-bottom {
  border-top: 1px solid rgba(255, 255, 255, .09); padding: 22px 0;
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255, 255, 255, .42);
}
.foot-bottom a:hover { color: var(--brand); }

/* ============================ 移动端悬浮联系 ============================ */
.mob-bar { display: none; }

/* ============================ 入场动画 ============================ */
.reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ============================ 响应式 ============================ */
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 50px; }
  .hero-visual { max-width: 560px; }
  .biz-grid, .adv-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-row { grid-template-columns: 1fr; gap: 34px; margin-bottom: 60px; }
  .sol-row.flip .sol-text { order: 1; }
  .sol-row.flip .sol-figure { order: 2; }
  .flow { grid-template-columns: repeat(3, 1fr); gap: 34px; }
  .flow::before { display: none; }
  .contact-wrap { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .stat-band { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .wrap { padding: 0 18px; }
  .nav { height: 64px; gap: 14px; }
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(6, 18, 35, .985);
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 14px 18px 22px; border-bottom: 1px solid rgba(255, 255, 255, .1);
    transform: translateY(-14px); opacity: 0; pointer-events: none;
    transition: all .28s var(--ease);
  }
  .nav-menu.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-menu a { padding: 13px 16px; font-size: 16px; }
  .nav-menu a.active::after { display: none; }
  .nav-tel { display: none; }
  .nav-menu .nav-tel { display: flex; justify-content: center; margin-top: 10px; }

  .hero { padding: 104px 0 66px; min-height: auto; }
  .hero h1 { font-size: clamp(29px, 8.4vw, 42px); }
  .hero-desc { font-size: 16px; }
  .hero-cta .btn { flex: 1; min-width: 140px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 22px 14px; }
  .hero-float { display: none; }

  .biz-grid, .adv-grid, .case-grid, .stat-band { grid-template-columns: 1fr; }
  .biz-no { font-size: 34px; top: 18px; right: 20px; }
  .flow { grid-template-columns: 1fr 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .form-card { padding: 26px 20px; }
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .foot-bottom { flex-direction: column; text-align: center; gap: 8px; }

  .mob-bar {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 880;
    background: rgba(6, 18, 35, .97); backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, .12);
    padding: 9px 10px calc(9px + env(safe-area-inset-bottom));
  }
  .mob-bar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
    padding: 7px 0; font-size: 12px; color: rgba(255, 255, 255, .78);
  }
  .mob-bar a svg { width: 20px; height: 20px; }
  .mob-bar a.primary {
    background: linear-gradient(135deg, var(--brand), #17c4d8);
    color: #04261a !important; font-weight: 700; border-radius: 12px; margin: 0 4px;
  }
  body { padding-bottom: 66px; }
}

@media (max-width: 400px) {
  .flow { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; flex: none; }
}