@charset "UTF-8";
/* ==========================================================================
   恒昊传媒文化（赣州）有限公司 — 官网主样式表
   设计风格：科技风 / 高端大气 / 深空蓝紫 + 电光青
   说明：全部为本地样式，无任何远程引用
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌 (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
  /* 主色 — 深空底 */
  --bg-base: #05070f;
  --bg-deep: #080b18;
  --bg-panel: #0d1224;
  --bg-panel-2: #111832;
  --bg-elevated: #151d3a;

  /* 品牌色 — 电光青 / 星云紫 */
  --brand-cyan: #22d3ee;
  --brand-cyan-dim: #0ea5b7;
  --brand-blue: #3b82f6;
  --brand-violet: #7c5cff;
  --brand-magenta: #c026d3;

  /* 渐变 */
  --grad-brand: linear-gradient(135deg, #22d3ee 0%, #3b82f6 45%, #7c5cff 100%);
  --grad-brand-soft: linear-gradient(135deg, rgba(34, 211, 238, .16) 0%, rgba(124, 92, 255, .16) 100%);
  --grad-line: linear-gradient(90deg, transparent, rgba(34, 211, 238, .55), rgba(124, 92, 255, .55), transparent);
  --grad-text: linear-gradient(120deg, #ffffff 0%, #a5f3fc 40%, #c4b5fd 75%, #ffffff 100%);

  /* 文字 */
  --text-1: #f2f6ff;
  --text-2: #b6c2de;
  --text-3: #7d8aab;
  --text-4: #566181;

  /* 描边 & 分隔 */
  --line-1: rgba(120, 150, 220, .14);
  --line-2: rgba(120, 150, 220, .26);
  --line-glow: rgba(34, 211, 238, .45);

  /* 阴影 */
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, .35);
  --shadow-md: 0 14px 40px rgba(0, 0, 0, .45);
  --shadow-lg: 0 28px 70px rgba(0, 0, 0, .55);
  --glow-cyan: 0 0 32px rgba(34, 211, 238, .35);
  --glow-violet: 0 0 32px rgba(124, 92, 255, .32);

  /* 尺寸 */
  --container: 1240px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC",
    "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* 动效 */
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
  --header-h: 76px;
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
  background: var(--bg-base);
  overflow-x: hidden;
  max-width: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main, section, header, footer, .container { max-width: 100%; }

/* 背景光晕层 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 620px at 12% -8%, rgba(34, 211, 238, .13), transparent 62%),
    radial-gradient(980px 560px at 92% 4%, rgba(124, 92, 255, .15), transparent 60%),
    radial-gradient(900px 700px at 50% 108%, rgba(59, 130, 246, .10), transparent 65%);
  pointer-events: none;
}

/* 细网格纹理 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(120, 150, 220, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 150, 220, .045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 85% 70% at 50% 22%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 85% 70% at 50% 22%, #000 20%, transparent 78%);
  pointer-events: none;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-1);
  letter-spacing: -.01em;
}

p { margin: 0; }

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

::selection {
  background: rgba(34, 211, 238, .3);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #06080f; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #1d2b52, #2a3a68);
  border-radius: 8px;
  border: 2px solid #06080f;
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #2a4270, #3a5090); }

/* --------------------------------------------------------------------------
   3. 布局工具
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  position: relative;
  padding: 116px 0;
}

.section--tight { padding: 84px 0; }

.section-head {
  max-width: 780px;
  margin: 0 auto 68px;
  text-align: center;
}

.section-head--left {
  margin-left: 0;
  text-align: left;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px 7px 12px;
  margin-bottom: 22px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .07);
  border: 1px solid rgba(34, 211, 238, .22);
  border-radius: 999px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-cyan);
  box-shadow: 0 0 10px var(--brand-cyan);
  animation: pulseDot 2s var(--ease-in-out) infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.75); }
}

.section-title {
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: -.02em;
  margin-bottom: 20px;
}

.section-title em {
  font-style: normal;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-desc {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-3);
}

.gradient-text {
  background: linear-gradient(120deg, #22d3ee, #7c5cff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* --------------------------------------------------------------------------
   4. 按钮
   -------------------------------------------------------------------------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 32px;
  font-size: 15.5px;
  font-weight: 600;
  letter-spacing: .02em;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  overflow: hidden;
  white-space: nowrap;
  transition: transform .35s var(--ease-out), box-shadow .35s var(--ease-out),
    background-color .3s ease, border-color .3s ease, color .3s ease;
}

.btn svg { flex: 0 0 auto; transition: transform .35s var(--ease-out); }

.btn--primary {
  color: #04121a;
  background: var(--grad-brand);
  box-shadow: 0 10px 32px rgba(34, 211, 238, .28), inset 0 1px 0 rgba(255, 255, 255, .35);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 46px rgba(34, 211, 238, .42), inset 0 1px 0 rgba(255, 255, 255, .45);
}

.btn--primary:hover svg { transform: translateX(4px); }

/* 光泽扫过 */
.btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -130%;
  width: 60%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-20deg);
  transition: left .7s var(--ease-out);
}

.btn--primary:hover::after { left: 145%; }

.btn--ghost {
  color: var(--text-1);
  background: rgba(255, 255, 255, .03);
  border-color: var(--line-2);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  transform: translateY(-3px);
  border-color: var(--line-glow);
  background: rgba(34, 211, 238, .08);
  box-shadow: var(--glow-cyan);
}

.btn--ghost:hover svg { transform: translateX(4px); }

.btn--lg { padding: 18px 40px; font-size: 16.5px; }
.btn--block { width: 100%; }

/* --------------------------------------------------------------------------
   5. 顶部导航
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--header-h);
  display: flex;
  align-items: center;
  overflow: hidden;
  transition: background-color .4s ease, backdrop-filter .4s ease,
    border-color .4s ease, height .4s ease;
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  height: 66px;
  background: rgba(6, 9, 18, .82);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line-1);
}

.header__inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-width: 0;
}

.logo { min-width: 0; }

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.logo__mark {
  position: relative;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--grad-brand);
  box-shadow: 0 6px 20px rgba(34, 211, 238, .3);
  flex: 0 0 auto;
}

.logo__mark span {
  font-size: 20px;
  font-weight: 800;
  color: #04121a;
  letter-spacing: -.03em;
  line-height: 1;
}

.logo__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 11px;
  border: 1px solid rgba(255, 255, 255, .3);
}

.logo__text { display: flex; flex-direction: column; line-height: 1.15; }

.logo__cn {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-1);
  letter-spacing: .04em;
}

.logo__en {
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: .19em;
  color: var(--text-4);
  text-transform: uppercase;
}

/* 导航菜单 */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  position: relative;
  padding: 9px 14px;
  font-size: 14.8px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 8px;
  white-space: nowrap;
  transition: color .28s ease, background-color .28s ease;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .38s var(--ease-out);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--text-1);
  background: rgba(255, 255, 255, .04);
}

.nav__link:hover::after,
.nav__link.is-active::after { transform: scaleX(1); }

.header__actions { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }

.header__tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-2);
  transition: color .28s ease;
}

.header__tel:hover { color: var(--brand-cyan); }
.header__tel svg { color: var(--brand-cyan); }

/* 汉堡按钮 */
.burger {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line-1);
  border-radius: 10px;
  cursor: pointer;
  position: relative;
}

.burger span {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  margin-left: -10px;
  border-radius: 2px;
  background: var(--text-1);
  transition: transform .35s var(--ease-out), opacity .25s ease;
}

.burger span:nth-child(1) { top: 15px; }
.burger span:nth-child(2) { top: 21px; }
.burger span:nth-child(3) { top: 27px; }

.burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 899;
  width: min(340px, 86vw);
  padding: 96px 28px 32px;
  background: rgba(8, 11, 24, .97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--line-2);
  box-shadow: var(--shadow-lg);
  transform: translateX(102%);
  visibility: hidden;
  transition: transform .48s var(--ease-out), visibility .48s var(--ease-out);
  overflow-y: auto;
}

.drawer.is-open { transform: translateX(0); visibility: visible; }

.drawer__nav { display: flex; flex-direction: column; gap: 2px; margin-bottom: 28px; }

.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 16px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text-2);
  border-radius: 12px;
  border-bottom: 1px solid var(--line-1);
  transition: color .25s ease, background-color .25s ease, padding-left .3s var(--ease-out);
}

.drawer__link:hover {
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .06);
  padding-left: 22px;
}

.drawer__link i {
  font-style: normal;
  font-size: 12px;
  color: var(--text-4);
  font-family: var(--font-mono);
}

.drawer__contact {
  padding: 20px;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .02);
}

.drawer__contact dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--text-4);
  text-transform: uppercase;
  margin-bottom: 5px;
}

.drawer__contact dd {
  margin: 0 0 16px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text-1);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.drawer__contact dd:last-child { margin-bottom: 0; }

.mask {
  position: fixed;
  inset: 0;
  z-index: 898;
  background: rgba(3, 5, 12, .66);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .4s ease, visibility .4s ease;
}

.mask.is-open { opacity: 1; visibility: visible; }

/* --------------------------------------------------------------------------
   6. Hero 首屏
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 60px) 0 90px;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 66px;
  align-items: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px 8px 13px;
  margin-bottom: 30px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
  background: rgba(255, 255, 255, .035);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.hero__badge b {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  color: #04121a;
  background: var(--grad-brand);
  border-radius: 999px;
}

.hero__title {
  font-size: clamp(36px, 5.4vw, 66px);
  line-height: 1.14;
  letter-spacing: -.03em;
  margin-bottom: 26px;
}

.hero__title .line { display: block; }

.hero__title .accent {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* 打字光标 */
.typed-wrap { display: inline; }

.caret {
  display: inline-block;
  width: 3px;
  height: .92em;
  margin-left: 4px;
  vertical-align: -.09em;
  background: var(--brand-cyan);
  box-shadow: 0 0 12px var(--brand-cyan);
  animation: caretBlink 1s step-end infinite;
}

@keyframes caretBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero__sub {
  max-width: 560px;
  font-size: 17.5px;
  line-height: 1.9;
  color: var(--text-3);
  margin-bottom: 38px;
}

.hero__sub strong { color: var(--text-1); font-weight: 600; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 52px;
}

/* Hero 数据 */
.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
}

.stat {
  padding-right: 34px;
  margin-right: 34px;
  border-right: 1px solid var(--line-1);
}

.stat:last-child {
  padding-right: 0;
  margin-right: 0;
  border-right: 0;
}

.stat__num {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  background: linear-gradient(120deg, #fff, #7dd3fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.stat__num sub {
  font-size: 17px;
  font-weight: 700;
  vertical-align: baseline;
  bottom: 0;
  margin-left: 2px;
}

.stat__label {
  margin-top: 7px;
  font-size: 13.5px;
  color: var(--text-4);
  letter-spacing: .04em;
}

/* ---- 首屏右侧：轨道动画 ---- */
.hero__visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 520px;
  margin-left: auto;
  width: 100%;
  overflow: visible;
}

.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 152px;
  height: 152px;
  margin: -76px 0 0 -76px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, rgba(34, 211, 238, .9), rgba(59, 130, 246, .55) 42%, rgba(124, 92, 255, .32) 68%, transparent 74%);
  box-shadow: 0 0 70px rgba(34, 211, 238, .42), inset 0 0 44px rgba(255, 255, 255, .22);
  animation: coreFloat 6s var(--ease-in-out) infinite;
}

@keyframes coreFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-13px); }
}

.orbit-core__inner {
  text-align: center;
  color: #04121a;
}

.orbit-core__inner strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
}

.orbit-core__inner small {
  display: block;
  margin-top: 5px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .18em;
}

.orbit-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px dashed var(--line-2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.orbit-ring--1 { width: 66%; height: 66%; animation: spin 26s linear infinite; }
.orbit-ring--2 { width: 86%; height: 86%; animation: spin 40s linear infinite reverse; }
.orbit-ring--3 { width: 104%; height: 104%; animation: spin 58s linear infinite; }

@keyframes spin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.orbit-node {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
}

.orbit-node b {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--text-1);
  background: rgba(13, 18, 36, .92);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
  transform: translate(-50%, -50%);
}

.orbit-node b i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-cyan);
  box-shadow: 0 0 9px var(--brand-cyan);
  flex: 0 0 auto;
}

.orbit-node--1 b { transform: translate(-50%, -50%) translate(-118px, -84px); }
.orbit-node--2 b { transform: translate(-50%, -50%) translate(108px, -96px); }
.orbit-node--3 b { transform: translate(-50%, -50%) translate(132px, 58px); }
.orbit-node--4 b { transform: translate(-50%, -50%) translate(-40px, 140px); }
.orbit-node--5 b { transform: translate(-50%, -50%) translate(-132px, 68px); }

.orbit-node--1 i { background: #22d3ee; }
.orbit-node--2 i { background: #3b82f6; box-shadow: 0 0 9px #3b82f6; }
.orbit-node--3 i { background: #7c5cff; box-shadow: 0 0 9px #7c5cff; }
.orbit-node--4 i { background: #22d3ee; }
.orbit-node--5 i { background: #c026d3; box-shadow: 0 0 9px #c026d3; }

/* 扫光 */
.hero__scan {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0deg, rgba(34, 211, 238, .12) 42deg, transparent 96deg);
  animation: spin 8s linear infinite;
  pointer-events: none;
}

/* 向下滚动提示 */
.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-4);
}

.scroll-hint__line {
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--brand-cyan), transparent);
  animation: scrollLine 2.2s var(--ease-in-out) infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  70% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* --------------------------------------------------------------------------
   7. 合作品牌跑马灯
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  padding: 30px 0;
  border-top: 1px solid var(--line-1);
  border-bottom: 1px solid var(--line-1);
  background: rgba(255, 255, 255, .012);
  overflow: hidden;
}

.marquee::before,
.marquee::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 130px;
  z-index: 2;
  pointer-events: none;
}

.marquee::before { left: 0; background: linear-gradient(90deg, var(--bg-base), transparent); }
.marquee::after { right: 0; background: linear-gradient(270deg, var(--bg-base), transparent); }

.marquee__track {
  display: flex;
  gap: 60px;
  width: max-content;
  animation: marquee 34s linear infinite;
}

.marquee:hover .marquee__track { animation-play-state: paused; }

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.marquee__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--text-4);
  white-space: nowrap;
  transition: color .3s ease;
}

.marquee__item:hover { color: var(--brand-cyan); }
.marquee__item svg { opacity: .7; }

/* --------------------------------------------------------------------------
   8. 卡片通用
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  padding: 34px 30px;
  background: linear-gradient(180deg, rgba(21, 29, 58, .5), rgba(13, 18, 36, .62));
  border: 1px solid var(--line-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .45s var(--ease-out), border-color .45s ease,
    box-shadow .45s var(--ease-out), background-color .45s ease;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--grad-line);
  opacity: 0;
  transition: opacity .45s ease;
}

.card:hover {
  transform: translateY(-7px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-md), 0 0 46px rgba(34, 211, 238, .1);
}

.card:hover::before { opacity: 1; }

.card__icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 15px;
  background: var(--grad-brand-soft);
  border: 1px solid rgba(34, 211, 238, .24);
  color: var(--brand-cyan);
  transition: transform .45s var(--ease-out), color .35s ease,
    background-color .35s ease, box-shadow .45s var(--ease-out);
}

.card:hover .card__icon {
  transform: translateY(-3px) scale(1.06);
  color: #fff;
  background: var(--grad-brand);
  box-shadow: var(--glow-cyan);
}

.card__title {
  font-size: 19.5px;
  margin-bottom: 13px;
  letter-spacing: -.01em;
}

.card__text {
  font-size: 14.8px;
  line-height: 1.85;
  color: var(--text-3);
}

.card__list {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.card__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-3);
}

.card__list li::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--brand-cyan);
  box-shadow: 0 0 8px rgba(34, 211, 238, .8);
}

/* 卡片编号 */
.card__no {
  position: absolute;
  top: 20px;
  right: 26px;
  font-family: var(--font-mono);
  font-size: 46px;
  font-weight: 800;
  line-height: 1;
  color: rgba(120, 150, 220, .1);
  transition: color .45s ease;
  pointer-events: none;
}

.card:hover .card__no { color: rgba(34, 211, 238, .2); }

/* --------------------------------------------------------------------------
   9. 业务网格
   -------------------------------------------------------------------------- */
.biz-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.biz-grid .card--wide {
  grid-column: span 2;
}

.biz-grid .card--feature {
  background:
    radial-gradient(520px 240px at 12% 0%, rgba(34, 211, 238, .13), transparent 62%),
    linear-gradient(180deg, rgba(21, 29, 58, .6), rgba(13, 18, 36, .7));
}

.biz-flex {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

/* --------------------------------------------------------------------------
   10. 关于我们
   -------------------------------------------------------------------------- */
.about {
  position: relative;
}

.about__grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 72px;
  align-items: center;
}

.about__media {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--line-2);
  background: linear-gradient(160deg, #0e1530, #070a16);
  aspect-ratio: 4 / 3.3;
  box-shadow: var(--shadow-lg);
}

.about__media-inner {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  overflow: hidden;
}

/* 抽象科技图形 */
.about__art {
  position: absolute;
  inset: 0;
}

.about__art svg { width: 100%; height: 100%; }

.about__badge {
  position: absolute;
  left: 24px;
  bottom: 24px;
  right: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  background: rgba(8, 11, 24, .9);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-md);
  backdrop-filter: blur(14px);
}

.about__badge-num {
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(120deg, #22d3ee, #7c5cff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  flex: 0 0 auto;
}

.about__badge-txt { font-size: 13.5px; line-height: 1.6; color: var(--text-3); }
.about__badge-txt strong { display: block; font-size: 14.5px; color: var(--text-1); margin-bottom: 2px; }

.about__list {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line-1);
}

.about__item {
  display: flex;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-1);
  transition: padding-left .4s var(--ease-out);
}

.about__item:hover { padding-left: 10px; }

.about__item-i {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .22);
}

.about__item h4 {
  font-size: 16.5px;
  margin-bottom: 6px;
}

.about__item p {
  font-size: 14.5px;
  color: var(--text-3);
  line-height: 1.8;
}

/* 使命宣言 */
.mission {
  margin-top: 34px;
  padding: 24px 26px;
  border-left: 3px solid transparent;
  border-image: var(--grad-brand) 1;
  background: rgba(34, 211, 238, .05);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.mission p {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.8;
  color: var(--text-1);
}

/* --------------------------------------------------------------------------
   11. 服务流程
   -------------------------------------------------------------------------- */
.flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
}

.flow__line {
  position: absolute;
  top: 27px;
  left: 8%;
  right: 8%;
  height: 1px;
  background: var(--grad-line);
  z-index: 0;
}

.flow__step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
}

.flow__dot {
  width: 56px;
  height: 56px;
  margin: 0 auto 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--brand-cyan);
  background: var(--bg-panel);
  border: 1px solid rgba(34, 211, 238, .3);
  box-shadow: 0 0 0 6px rgba(34, 211, 238, .045);
  transition: transform .45s var(--ease-out), color .35s ease,
    background-color .35s ease, box-shadow .45s var(--ease-out);
}

.flow__step:hover .flow__dot {
  transform: translateY(-5px) scale(1.07);
  color: #04121a;
  background: var(--grad-brand);
  border-color: transparent;
  box-shadow: 0 0 0 8px rgba(34, 211, 238, .1), var(--glow-cyan);
}

.flow__step h4 {
  font-size: 16.5px;
  margin-bottom: 9px;
}

.flow__step p {
  font-size: 13.8px;
  line-height: 1.78;
  color: var(--text-4);
}

/* --------------------------------------------------------------------------
   12. 案例
   -------------------------------------------------------------------------- */
.cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case {
  position: relative;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px 28px;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(21, 29, 58, .42), rgba(8, 11, 24, .82));
  transition: transform .45s var(--ease-out), border-color .4s ease, box-shadow .45s var(--ease-out);
}

.case::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(420px 280px at 20% 0%, var(--case-glow, rgba(34, 211, 238, .2)), transparent 68%);
  opacity: .8;
  transition: opacity .45s ease, transform .6s var(--ease-out);
}

.case:hover {
  transform: translateY(-7px);
  border-color: var(--line-2);
  box-shadow: var(--shadow-md);
}

.case:hover::before { opacity: 1; transform: scale(1.1); }

.case__tag {
  position: relative;
  align-self: flex-start;
  padding: 5px 13px;
  margin-bottom: auto;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .1);
  border: 1px solid rgba(34, 211, 238, .25);
  border-radius: 999px;
}

.case__title {
  position: relative;
  font-size: 20px;
  margin: 26px 0 11px;
}

.case__text {
  position: relative;
  font-size: 14.2px;
  line-height: 1.8;
  color: var(--text-3);
  margin-bottom: 20px;
}

.case__metrics {
  position: relative;
  display: flex;
  gap: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line-1);
}

.case__metric strong {
  display: block;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.2;
  background: linear-gradient(120deg, #fff, #7dd3fc);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.case__metric span {
  font-size: 12.5px;
  color: var(--text-4);
}

/* --------------------------------------------------------------------------
   13. 优势 / 数据带
   -------------------------------------------------------------------------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.adv {
  padding: 28px 24px;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .018);
  transition: border-color .4s ease, background-color .4s ease, transform .4s var(--ease-out);
}

.adv:hover {
  transform: translateY(-5px);
  border-color: var(--line-glow);
  background: rgba(34, 211, 238, .045);
}

.adv__icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 12px;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .2);
}

.adv h4 { font-size: 17px; margin-bottom: 10px; }
.adv p { font-size: 14px; line-height: 1.8; color: var(--text-3); }

/* 数据带 */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(21, 29, 58, .45), rgba(13, 18, 36, .6));
}

.stats-band__item {
  padding: 40px 28px;
  text-align: center;
  border-right: 1px solid var(--line-1);
  transition: background-color .4s ease;
}

.stats-band__item:last-child { border-right: 0; }
.stats-band__item:hover { background: rgba(34, 211, 238, .045); }

.stats-band__num {
  font-size: clamp(32px, 3.6vw, 44px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.02em;
  background: linear-gradient(120deg, #fff 0%, #7dd3fc 55%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.stats-band__num sub {
  font-size: .48em;
  font-weight: 700;
  vertical-align: baseline;
  bottom: 0;
  margin-left: 3px;
}

.stats-band__label {
  margin-top: 10px;
  font-size: 14px;
  color: var(--text-4);
  letter-spacing: .04em;
}

/* --------------------------------------------------------------------------
   14. 联系我们
   -------------------------------------------------------------------------- */
.contact {
  position: relative;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    radial-gradient(760px 400px at 8% 0%, rgba(34, 211, 238, .12), transparent 60%),
    radial-gradient(700px 420px at 96% 100%, rgba(124, 92, 255, .14), transparent 62%),
    linear-gradient(180deg, rgba(17, 24, 50, .75), rgba(8, 11, 24, .88));
  box-shadow: var(--shadow-lg);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr .95fr;
}

.contact__info {
  padding: 56px 52px;
  border-right: 1px solid var(--line-1);
}

.contact__form {
  padding: 56px 52px;
  background: rgba(255, 255, 255, .012);
}

.contact__list {
  margin-top: 34px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact__row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-1);
}

.contact__row:last-child { border-bottom: 0; }

.contact__row-ic {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: var(--brand-cyan);
  background: rgba(34, 211, 238, .08);
  border: 1px solid rgba(34, 211, 238, .2);
}

.contact__row dt {
  font-size: 12.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: 5px;
}

.contact__row dd {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.6;
}

.contact__row dd small {
  display: block;
  font-size: 13.5px;
  font-weight: 400;
  color: var(--text-3);
  margin-top: 3px;
}

/* 表单 */
.field { margin-bottom: 18px; }

.field label {
  display: block;
  margin-bottom: 9px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-2);
}

.field label span { color: #f87171; margin-left: 3px; }

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 14px 16px;
  color: var(--text-1);
  background: rgba(6, 9, 18, .6);
  border: 1px solid var(--line-2);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .3s ease, box-shadow .3s ease, background-color .3s ease;
  font-size: 15px;
}

.field textarea {
  resize: vertical;
  min-height: 104px;
  line-height: 1.7;
}

.field input::placeholder,
.field textarea::placeholder { color: var(--text-4); }

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--line-glow);
  background: rgba(6, 9, 18, .85);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, .1);
}

.field select option { background: #0d1224; color: var(--text-1); }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  margin-top: 14px;
  font-size: 12.8px;
  color: var(--text-4);
  line-height: 1.7;
}

.form-msg {
  display: none;
  margin-top: 16px;
  padding: 13px 16px;
  font-size: 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(34, 211, 238, .3);
  background: rgba(34, 211, 238, .08);
  color: var(--brand-cyan);
}

.form-msg.is-show { display: block; }

/* --------------------------------------------------------------------------
   15. CTA 区块
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  padding: 74px 60px;
  text-align: center;
  border: 1px solid var(--line-2);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    radial-gradient(700px 340px at 50% 0%, rgba(34, 211, 238, .14), transparent 62%),
    linear-gradient(180deg, rgba(21, 29, 58, .7), rgba(8, 11, 24, .85));
}

.cta h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  margin-bottom: 18px;
}

.cta p {
  max-width: 620px;
  margin: 0 auto 34px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-3);
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   16. 页脚
   -------------------------------------------------------------------------- */
.footer {
  position: relative;
  margin-top: 0;
  padding: 76px 0 0;
  border-top: 1px solid var(--line-1);
  background: linear-gradient(180deg, rgba(8, 11, 24, .5), rgba(4, 6, 12, .95));
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 46px;
  padding-bottom: 56px;
}

.footer__brand p {
  margin-top: 20px;
  font-size: 14.4px;
  line-height: 1.85;
  color: var(--text-4);
  max-width: 320px;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--text-3);
  border: 1px solid var(--line-1);
  border-radius: 11px;
  background: rgba(255, 255, 255, .02);
  transition: color .3s ease, border-color .3s ease, background-color .3s ease, transform .35s var(--ease-out);
}

.footer__social a:hover {
  color: #04121a;
  background: var(--grad-brand);
  border-color: transparent;
  transform: translateY(-3px);
}

.footer__col h5 {
  font-size: 15.5px;
  margin-bottom: 22px;
  color: var(--text-1);
  letter-spacing: .02em;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.footer__col a {
  font-size: 14.3px;
  color: var(--text-4);
  transition: color .28s ease, padding-left .3s var(--ease-out);
  display: inline-block;
}

.footer__col a:hover { color: var(--brand-cyan); padding-left: 5px; }

.footer__contact li {
  display: flex;
  gap: 11px;
  font-size: 14.2px;
  line-height: 1.75;
  color: var(--text-4);
  margin-bottom: 15px;
}

.footer__contact svg { flex: 0 0 auto; margin-top: 4px; color: var(--brand-cyan); opacity: .85; }

.footer__bottom {
  padding: 26px 0;
  border-top: 1px solid var(--line-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.footer__bottom p,
.footer__bottom a {
  font-size: 13.4px;
  color: var(--text-4);
}

.footer__bottom a:hover { color: var(--brand-cyan); }

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 880;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: var(--text-1);
  background: rgba(13, 18, 36, .9);
  border: 1px solid var(--line-2);
  border-radius: 13px;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .4s ease, visibility .4s ease, transform .4s var(--ease-out),
    border-color .3s ease, background-color .3s ease;
  backdrop-filter: blur(12px);
}

.to-top.is-show { opacity: 1; visibility: visible; transform: translateY(0); }

.to-top:hover {
  border-color: var(--line-glow);
  background: rgba(34, 211, 238, .13);
}

/* --------------------------------------------------------------------------
   17. 滚动入场动画
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
  will-change: opacity, transform;
}

[data-reveal].is-in { opacity: 1; transform: translateY(0); }

[data-reveal="left"] { transform: translateX(-34px); }
[data-reveal="left"].is-in { transform: translateX(0); }

[data-reveal="right"] { transform: translateX(34px); }
[data-reveal="right"].is-in { transform: translateX(0); }

[data-reveal="zoom"] { transform: scale(.94); }
[data-reveal="zoom"].is-in { transform: scale(1); }

/* 进度条 */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 950;
  height: 2px;
  width: 0;
  background: var(--grad-brand);
  box-shadow: 0 0 12px rgba(34, 211, 238, .7);
  transition: width .12s linear;
}

/* --------------------------------------------------------------------------
   18. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1320px) {
  .nav__link { padding: 9px 11px; font-size: 14.2px; }
  .nav__link::after { left: 11px; right: 11px; }
  .header__tel { font-size: 13.8px; }
  .header__actions .btn { padding: 13px 22px; font-size: 14.5px; }
}

/* 叙事：隐藏「为什么选择我们」的长文案与电话，保证导航不换行 */
@media (max-width: 1240px) {
  .header__tel { display: none; }
}

@media (max-width: 1100px) {
  .nav__link { padding: 9px 9px; font-size: 13.8px; }
  .nav__link::after { left: 9px; right: 9px; }
  .header__actions .btn { padding: 12px 18px; font-size: 14px; }
  .logo__en { display: none; }
}

@media (max-width: 1180px) {
  .nav__link { padding: 9px 10px; font-size: 14px; }
  .nav__link::after { left: 10px; right: 10px; }
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-grid .card--wide { grid-column: span 2; }
  .flow { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .flow__line { display: none; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .cases { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer__grid .footer__col:last-child { grid-column: span 3; }
}

@media (max-width: 980px) {
  .section { padding: 88px 0; }
  .nav { display: none; }
  .burger { display: block; }
  .header__actions .btn { display: none; }
  .header__inner { gap: 14px; }
  .hero { min-height: auto; padding-top: calc(var(--header-h) + 44px); }
  .hero__grid { grid-template-columns: 1fr; gap: 56px; }
  .hero__visual { margin: 0 auto; max-width: 430px; }
  .hero__sub { max-width: none; }
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .contact__grid { grid-template-columns: 1fr; }
  .contact__info { border-right: 0; border-bottom: 1px solid var(--line-1); }
  .contact__info,
  .contact__form { padding: 44px 36px; }
  .stats-band { grid-template-columns: repeat(2, 1fr); }
  .stats-band__item:nth-child(2) { border-right: 0; }
  .stats-band__item:nth-child(1),
  .stats-band__item:nth-child(2) { border-bottom: 1px solid var(--line-1); }
  .scroll-hint { display: none; }
  .hero__visual { max-width: 400px; }
  .biz-flex { grid-template-columns: 1fr; gap: 34px; }
}

/* 窄屏下缩小轨道节点，避免溢出 */
@media (max-width: 860px) {
  .orbit-node b { font-size: 11px; padding: 6px 10px; }
  .orbit-node--1 b { transform: translate(-50%, -50%) translate(-46%, -33%); }
  .orbit-node--2 b { transform: translate(-50%, -50%) translate(42%, -37%); }
  .orbit-node--3 b { transform: translate(-50%, -50%) translate(50%, 23%); }
  .orbit-node--4 b { transform: translate(-50%, -50%) translate(-16%, 54%); }
  .orbit-node--5 b { transform: translate(-50%, -50%) translate(-50%, 26%); }
}

@media (max-width: 720px) {
  .container { padding: 0 20px; }
  .header__inner { padding: 0 20px; }
  .section { padding: 68px 0; }
  .section-head { margin-bottom: 46px; }
  .logo__cn { font-size: 15.5px; }
  .logo__mark { width: 36px; height: 36px; }
  .logo__mark span { font-size: 18px; }
  .hero__actions { gap: 12px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__visual { max-width: 320px; }
  .hero__stats { gap: 22px 18px; }
  .stat {
    flex: 1 1 42%;
    padding-right: 0;
    margin-right: 0;
    border-right: 0;
  }
  .stat__num { font-size: 26px; }
  .stat__label { font-size: 12.5px; }
  .biz-grid { grid-template-columns: 1fr; }
  .biz-grid .card--wide { grid-column: span 1; }
  .flow { grid-template-columns: 1fr 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .cases { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .cta { padding: 52px 24px; }
  .cta__actions .btn { flex: 1 1 100%; }
  .contact__info,
  .contact__form { padding: 34px 24px; }
  .footer__grid { grid-template-columns: 1fr; gap: 38px; padding-bottom: 40px; }
  .footer__grid .footer__col:last-child { grid-column: span 1; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .orbit-node b { font-size: 10.5px; padding: 5px 9px; gap: 5px; }
  .orbit-node b i { width: 5px; height: 5px; }
  .orbit-node--1 b { transform: translate(-50%, -50%) translate(-38%, -27%); }
  .orbit-node--2 b { transform: translate(-50%, -50%) translate(34%, -31%); }
  .orbit-node--3 b { transform: translate(-50%, -50%) translate(41%, 19%); }
  .orbit-node--4 b { transform: translate(-50%, -50%) translate(-13%, 45%); }
  .orbit-node--5 b { transform: translate(-50%, -50%) translate(-41%, 22%); }
  .orbit-core { width: 108px; height: 108px; margin: -54px 0 0 -54px; }
  .orbit-core__inner strong { font-size: 22px; }
  .orbit-core__inner small { font-size: 9px; margin-top: 3px; }
  .card { padding: 28px 24px; }
  .to-top { right: 16px; bottom: 16px; }
}

@media (max-width: 420px) {
  .flow { grid-template-columns: 1fr; }
  .footer__links { gap: 14px; }
}

/* --------------------------------------------------------------------------
   19. 无障碍 & 打印
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

@media print {
  body::before, body::after, .header, .to-top, .scroll-hint, .progress { display: none !important; }
  body { background: #fff; color: #111; }
  .section { padding: 30px 0; }
}