/* ==========================================================================
   易顶广告 YIDING MEDIA — 企业官网设计系统
   风格：简约大气 / 深墨蓝 + 品牌蓝 + 暖金点缀
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 色彩 */
  --ink: #070B16;
  --ink-2: #0C1324;
  --ink-3: #121B31;
  --paper: #FFFFFF;
  --mist: #F6F8FB;
  --mist-2: #EDF1F7;

  --brand: #2B5CFF;
  --brand-2: #5B8CFF;
  --brand-3: #1B3FCC;
  --gold: #C9A96A;

  --text: #131A2A;
  --text-2: #46506A;
  --muted: #7A869D;
  --line: rgba(17, 26, 46, .09);
  --line-soft: rgba(17, 26, 46, .055);

  --on-dark: #FFFFFF;
  --on-dark-2: rgba(255, 255, 255, .66);
  --on-dark-3: rgba(255, 255, 255, .40);
  --line-dark: rgba(255, 255, 255, .10);

  /* 形状 */
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --r-full: 999px;

  --shadow-sm: 0 2px 8px rgba(11, 20, 40, .05);
  --shadow: 0 14px 40px -18px rgba(11, 20, 40, .22);
  --shadow-lg: 0 40px 80px -40px rgba(11, 20, 40, .38);

  /* 版心与节奏 */
  --container: 1200px;
  --pad: 24px;
  --sec-y: 112px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --font: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
          "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.nav-open { overflow: hidden; }

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.22; font-weight: 700; letter-spacing: -.01em; }
textarea, input, select { font: inherit; }
::selection { background: var(--brand); color: #fff; }

/* ---------- 3. 布局原子 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.section { padding: var(--sec-y) 0; position: relative; }
.section--mist { background: var(--mist); }
.section--tight { padding: 76px 0; }
.section--dark { background: var(--ink); color: var(--on-dark); }

.grid { display: grid; gap: 24px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 4. 文字层级 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1.5px;
  background: currentColor;
  opacity: .55;
}
.eyebrow--gold { color: var(--gold); }
.eyebrow--light { color: var(--brand-2); }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }

.h-display { font-size: clamp(2.35rem, 5.2vw, 4rem); letter-spacing: -.03em; line-height: 1.1; }
.h-1 { font-size: clamp(2rem, 3.6vw, 2.9rem); letter-spacing: -.025em; }
.h-2 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.h-3 { font-size: 1.185rem; }
.h-4 { font-size: 1.02rem; }

.lead {
  font-size: clamp(1rem, 1.35vw, 1.115rem);
  line-height: 1.85;
  color: var(--text-2);
}
.section--dark .lead { color: var(--on-dark-2); }
.muted { color: var(--muted); }
.small { font-size: .9rem; line-height: 1.7; }
.center { text-align: center; }

.text-brand { color: var(--brand); }
.grad-text {
  background: linear-gradient(100deg, #8FB4FF 0%, #5B8CFF 42%, #C9A96A 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 50px;
  padding: 0 26px;
  border-radius: var(--r-full);
  font-size: .955rem;
  font-weight: 600;
  letter-spacing: .01em;
  white-space: nowrap;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease),
              background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 12px 26px -12px rgba(43, 92, 255, .75); }
.btn-primary:hover { background: var(--brand-3); box-shadow: 0 18px 34px -14px rgba(43, 92, 255, .85); }

.btn-ghost { border: 1px solid var(--line); color: var(--text); background: #fff; }
.btn-ghost:hover { border-color: rgba(43, 92, 255, .45); color: var(--brand); }

.btn-glass {
  border: 1px solid var(--line-dark);
  color: var(--on-dark);
  background: rgba(255, 255, 255, .05);
  backdrop-filter: blur(10px);
}
.btn-glass:hover { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .3); }

.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #EDF1F7; }

.btn-sm { height: 42px; padding: 0 20px; font-size: .89rem; }
.btn .arw { transition: transform .3s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: .93rem;
  color: var(--brand);
}
.link-arrow svg { transition: transform .3s var(--ease); }
.link-arrow:hover svg { transform: translateX(5px); }

/* ---------- 6. 页头导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  transition: background-color .45s var(--ease), box-shadow .45s var(--ease),
              border-color .45s var(--ease), backdrop-filter .45s var(--ease);
  border-bottom: 1px solid transparent;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo-mark {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: linear-gradient(140deg, var(--brand) 0%, #1B3FCC 100%);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  box-shadow: 0 8px 20px -8px rgba(43, 92, 255, .8);
  flex: none;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-size: 1.06rem; font-weight: 700; letter-spacing: .02em; }
.logo-text em {
  font-style: normal;
  font-size: 9.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 2px;
}

.logo-img { display: block; height: 40px; width: auto; }
.site-header.scrolled .logo-img { height: 34px; }
.footer-brand .logo-img { height: 46px; }

.site-header .logo-text strong { color: #fff; }
.site-header .logo-text em { color: var(--on-dark-3); }

.nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  position: relative;
  padding: 9px 15px;
  border-radius: var(--r-full);
  font-size: .94rem;
  font-weight: 500;
  color: var(--on-dark-2);
  transition: color .3s var(--ease), background-color .3s var(--ease);
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, .07); }
.nav-link.active { color: #fff; }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 1px;
  width: 16px; height: 2px;
  transform: translateX(-50%);
  border-radius: 2px;
  background: var(--brand-2);
}
.nav-cta { margin-left: 12px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line-dark);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 17px; height: 1.6px;
  border-radius: 2px;
  background: #fff;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6.6px) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6.6px) rotate(-45deg); }

/* 滚动后：白底导航 */
.site-header.scrolled {
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--line-soft);
  box-shadow: 0 10px 30px -22px rgba(11, 20, 40, .5);
}
.site-header.scrolled .logo-text strong { color: var(--text); }
.site-header.scrolled .logo-text em { color: var(--muted); }
.site-header.scrolled .nav-link { color: var(--text-2); }
.site-header.scrolled .nav-link:hover { color: var(--brand); background: rgba(43, 92, 255, .06); }
.site-header.scrolled .nav-link.active { color: var(--brand); }
.site-header.scrolled .nav-toggle { border-color: var(--line); }
.site-header.scrolled .nav-toggle span { background: var(--text); }

/* ---------- 7. 首屏 ---------- */
.hero {
  position: relative;
  padding: 190px 0 120px;
  background: var(--ink);
  color: var(--on-dark);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(760px 520px at 12% -6%, rgba(43, 92, 255, .40), transparent 62%),
    radial-gradient(680px 460px at 92% 8%, rgba(201, 169, 106, .16), transparent 60%),
    radial-gradient(900px 600px at 60% 120%, rgba(43, 92, 255, .18), transparent 65%);
  z-index: -2;
}
.hero::after {
  content: "";
  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: 68px 68px;
  mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 0%, transparent 78%);
  z-index: -1;
}
.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: .5;
  z-index: -1;
  animation: float 16s ease-in-out infinite;
}
.hero-orb.a { width: 380px; height: 380px; top: -80px; right: 6%; background: rgba(43, 92, 255, .55); }
.hero-orb.b { width: 300px; height: 300px; bottom: -60px; left: 4%; background: rgba(201, 169, 106, .35); animation-delay: -6s; }
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(0, -34px, 0) scale(1.06); }
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 64px;
  align-items: center;
}
.hero h1 { color: #fff; margin-bottom: 26px; }
.hero .lead { max-width: 560px; color: var(--on-dark-2); }
.hero .btn-row { margin-top: 40px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 36px;
  padding: 0 16px 0 12px;
  margin-bottom: 28px;
  border-radius: var(--r-full);
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, .05);
  backdrop-filter: blur(8px);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--on-dark-2);
}
.pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #46E0A0;
  box-shadow: 0 0 0 0 rgba(70, 224, 160, .7);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(70, 224, 160, 0); }
  100% { box-shadow: 0 0 0 0 rgba(70, 224, 160, 0); }
}

/* 首屏右侧数据面板 */
.hero-panel {
  position: relative;
  padding: 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line-dark);
  background: linear-gradient(160deg, rgba(255, 255, 255, .085), rgba(255, 255, 255, .028));
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-dark);
  margin-bottom: 20px;
}
.panel-head span { font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; color: var(--on-dark-3); }
.panel-list { display: grid; gap: 14px; }
.panel-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 15px;
  border-radius: 13px;
  background: rgba(255, 255, 255, .045);
  border: 1px solid rgba(255, 255, 255, .07);
  transition: transform .4s var(--ease), background-color .4s var(--ease);
}
.panel-item:hover { transform: translateX(5px); background: rgba(255, 255, 255, .09); }
.panel-item .dot {
  width: 34px; height: 34px;
  flex: none;
  display: grid; place-items: center;
  border-radius: 9px;
  background: rgba(43, 92, 255, .22);
  color: #9DBBFF;
}
.panel-item .tx { flex: 1; min-width: 0; }
.panel-item .tx b { display: block; font-size: .93rem; font-weight: 600; color: #fff; }
.panel-item .tx i { font-style: normal; font-size: .78rem; color: var(--on-dark-3); }
.panel-item .val { font-family: var(--mono); font-size: .95rem; font-weight: 600; color: #46E0A0; }
.panel-item .val.warm { color: var(--gold); }

/* ---------- 8. 内页首屏 ---------- */
.page-hero {
  position: relative;
  padding: 168px 0 88px;
  background: var(--ink);
  color: var(--on-dark);
  overflow: hidden;
  isolation: isolate;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(720px 420px at 18% -14%, rgba(43, 92, 255, .38), transparent 64%),
    radial-gradient(560px 380px at 88% 4%, rgba(201, 169, 106, .14), transparent 62%);
  z-index: -2;
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 30% 20%, #000 0%, transparent 72%);
  z-index: -1;
}
.page-hero h1 { color: #fff; margin-bottom: 22px; max-width: 18em; }
.page-hero .lead { max-width: 620px; color: var(--on-dark-2); }

.crumbs {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: .84rem;
  color: var(--on-dark-3);
  margin-bottom: 26px;
}
.crumbs a:hover { color: #fff; }
.crumbs span { color: rgba(255, 255, 255, .22); }

/* ---------- 9. 数据带 ---------- */
.stat-band {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: #fff;
}
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 46px 30px;
  border-right: 1px solid var(--line-soft);
}
.stat:last-child { border-right: 0; }
.stat .num {
  font-family: var(--mono);
  font-size: clamp(2rem, 3.4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--text);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.stat .num em { font-style: normal; font-size: .5em; color: var(--brand); font-weight: 600; }
.stat .lbl { margin-top: 10px; font-size: .9rem; color: var(--muted); }

/* ---------- 10. 卡片 ---------- */
.card {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--r);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), var(--gold));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(43, 92, 255, .22); }
.card:hover::after { transform: scaleX(1); }

.card .ico {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(43, 92, 255, .12), rgba(43, 92, 255, .04));
  color: var(--brand);
  margin-bottom: 22px;
  transition: transform .45s var(--ease);
}
.card:hover .ico { transform: scale(1.06) rotate(-3deg); }
.card h3 { margin-bottom: 12px; }
.card p { color: var(--text-2); font-size: .945rem; }

.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tag {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 12px;
  border-radius: var(--r-full);
  background: var(--mist);
  border: 1px solid var(--line-soft);
  font-size: .79rem;
  color: var(--text-2);
}
.section--dark .tag { background: rgba(255, 255, 255, .07); border-color: var(--line-dark); color: var(--on-dark-2); }

/* 深色卡片（用于深色区块内） */
.card--dark {
  background: linear-gradient(165deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .022));
  border-color: var(--line-dark);
  color: var(--on-dark);
}
.card--dark h3 { color: #fff; }
.card--dark p { color: var(--on-dark-2); }
.card--dark .ico { background: rgba(43, 92, 255, .2); color: #9DBBFF; }
.card--dark:hover { border-color: rgba(91, 140, 255, .45); box-shadow: 0 34px 70px -40px rgba(0, 0, 0, .8); }

/* 编号卡 */
.card-num { font-family: var(--mono); font-size: .8rem; letter-spacing: .14em; color: var(--gold); margin-bottom: 16px; display: block; }

/* ---------- 11. 图文分栏 ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 72px;
  align-items: center;
}
.split--rev .split-media { order: 2; }

.split-list { display: grid; gap: 18px; margin-top: 34px; }
.split-item { display: flex; gap: 15px; }
.split-item .tick {
  width: 26px; height: 26px; flex: none;
  margin-top: 3px;
  display: grid; place-items: center;
  border-radius: 8px;
  background: rgba(43, 92, 255, .1);
  color: var(--brand);
}
.split-item b { display: block; font-size: 1rem; margin-bottom: 4px; }
.split-item p { font-size: .925rem; color: var(--text-2); }

/* 视觉装饰块 */
.visual {
  position: relative;
  border-radius: var(--r-lg);
  background: var(--ink-2);
  overflow: hidden;
  padding: 34px;
  min-height: 400px;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}
.visual::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(420px 300px at 20% 0%, rgba(43, 92, 255, .5), transparent 66%),
    radial-gradient(360px 300px at 100% 100%, rgba(201, 169, 106, .22), transparent 62%);
  z-index: -1;
}
.visual::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: -1;
}
.visual-title { color: #fff; font-size: .82rem; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-3); margin-bottom: 22px; }
.bar-list { display: grid; gap: 18px; }
.bar-row { color: #fff; }
.bar-row .bar-top { display: flex; justify-content: space-between; font-size: .875rem; margin-bottom: 9px; }
.bar-row .bar-top i { font-style: normal; color: var(--on-dark-3); }
.bar-track { height: 6px; border-radius: 99px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.bar-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  width: 0;
  transition: width 1.4s var(--ease);
}
.bar-fill.gold { background: linear-gradient(90deg, #B08D4F, var(--gold)); }
.visual-note {
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  gap: 26px;
}
.visual-note div b { display: block; font-family: var(--mono); font-size: 1.5rem; color: #fff; }
.visual-note div span { font-size: .79rem; color: var(--on-dark-3); }

/* ---------- 12. 流程时间线 ---------- */
.process { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.process::before {
  content: "";
  position: absolute;
  top: 27px; left: 4%; right: 4%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), var(--line), transparent);
}
.step { position: relative; text-align: center; padding: 0 6px; }
.step .node {
  position: relative;
  z-index: 1;
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line);
  font-family: var(--mono);
  font-size: .92rem;
  font-weight: 700;
  color: var(--brand);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
}
.step:hover .node { transform: translateY(-5px) scale(1.05); border-color: var(--brand); box-shadow: 0 16px 30px -16px rgba(43, 92, 255, .7); }
.step h4 { font-size: .965rem; margin-bottom: 8px; }
.step p { font-size: .845rem; color: var(--muted); line-height: 1.65; }

/* ---------- 13. 能力跑马灯 ---------- */
.marquee {
  overflow: hidden;
  padding: 30px 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: #fff;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  gap: 46px;
  width: max-content;
  animation: scroll-x 40s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}
.marquee-item i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--brand);
  opacity: .55;
}

/* ---------- 14. 覆盖市场 ---------- */
.region-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.region {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--r);
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, .04);
  transition: transform .45s var(--ease), background-color .45s var(--ease), border-color .45s var(--ease);
}
.region:hover { transform: translateY(-4px); background: rgba(255, 255, 255, .08); border-color: rgba(91, 140, 255, .4); }
.region .flag { font-size: 1.5rem; line-height: 1; }
.region b { display: block; color: #fff; font-size: 1rem; }
.region span { font-size: .82rem; color: var(--on-dark-3); }

/* ---------- 15. CTA 区块 ---------- */
.cta-band {
  position: relative;
  padding: 96px 0;
  background: var(--ink);
  color: var(--on-dark);
  overflow: hidden;
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(700px 400px at 20% 0%, rgba(43, 92, 255, .42), transparent 62%),
    radial-gradient(600px 400px at 85% 100%, rgba(201, 169, 106, .18), transparent 62%);
  z-index: -1;
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.cta-inner h2 { color: #fff; max-width: 20em; }
.cta-inner p { color: var(--on-dark-2); margin-top: 16px; max-width: 44em; }

/* ---------- 16. 页脚 ---------- */
.site-footer {
  background: var(--ink-2);
  color: var(--on-dark-2);
  padding: 76px 0 0;
  border-top: 1px solid var(--line-dark);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer-brand .logo { margin-bottom: 22px; }
.footer-brand p { font-size: .91rem; color: var(--on-dark-3); max-width: 30em; }
.footer-col h5 {
  font-size: .8rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .45);
  margin: 0 0 22px;
  font-weight: 600;
}
.footer-col ul { display: grid; gap: 13px; }
.footer-col a { font-size: .93rem; color: var(--on-dark-2); transition: color .3s var(--ease), padding-left .3s var(--ease); }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 12px; font-size: .91rem; color: var(--on-dark-2); }
.footer-contact svg { flex: none; margin-top: 4px; color: rgba(255, 255, 255, .35); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 26px 0 34px;
  border-top: 1px solid var(--line-dark);
  font-size: .855rem;
  color: var(--on-dark-3);
}
.footer-bottom .fb-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 17. 产品服务页：标签页 ---------- */
.tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 48px; }
.tab {
  height: 44px;
  padding: 0 22px;
  border-radius: var(--r-full);
  border: 1px solid var(--line);
  background: #fff;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-2);
  transition: all .32s var(--ease);
}
.tab:hover { border-color: rgba(43, 92, 255, .4); color: var(--brand); }
.tab.active { background: var(--ink); border-color: var(--ink); color: #fff; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .55s var(--ease); }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 18. 价格/模式对比表 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: #fff; }
table.cmp { width: 100%; min-width: 820px; border-collapse: collapse; }
table.cmp th, table.cmp td { padding: 20px 24px; text-align: left; font-size: .925rem; border-bottom: 1px solid var(--line-soft); }
table.cmp thead th {
  font-size: .82rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  background: var(--mist);
  border-bottom: 1px solid var(--line);
}
table.cmp tbody th { font-weight: 600; color: var(--text); width: 190px; }
table.cmp tbody tr:last-child th, table.cmp tbody tr:last-child td { border-bottom: 0; }
table.cmp tbody tr:hover td, table.cmp tbody tr:hover th { background: rgba(43, 92, 255, .028); }
table.cmp td { color: var(--text-2); }
.col-hi { background: rgba(43, 92, 255, .035); }
.col-hi-head { color: var(--brand) !important; }
.mark-yes { color: var(--brand); font-weight: 600; }
.mark-no { color: var(--muted); }

/* ---------- 19. FAQ ---------- */
.faq { display: grid; gap: 14px; max-width: 880px; margin: 0 auto; }
details.qa {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: #fff;
  transition: border-color .35s var(--ease), box-shadow .35s var(--ease);
}
details.qa[open] { border-color: rgba(43, 92, 255, .3); box-shadow: var(--shadow-sm); }
details.qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  font-size: 1rem;
}
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary .plus { position: relative; width: 16px; height: 16px; flex: none; }
details.qa summary .plus::before,
details.qa summary .plus::after {
  content: "";
  position: absolute;
  background: var(--brand);
  border-radius: 2px;
  transition: transform .35s var(--ease), opacity .35s var(--ease);
}
details.qa summary .plus::before { top: 7px; left: 0; width: 16px; height: 1.8px; }
details.qa summary .plus::after { left: 7px; top: 0; width: 1.8px; height: 16px; }
details.qa[open] summary .plus::after { transform: scaleY(0); opacity: 0; }
details.qa .ans { padding: 0 26px 24px; color: var(--text-2); font-size: .945rem; max-width: 62em; }

/* ---------- 20. 联系页 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 56px;
  align-items: start;
}
.info-list { display: grid; gap: 16px; }
.info-card {
  display: flex;
  gap: 18px;
  padding: 26px 26px;
  border-radius: var(--r);
  background: #fff;
  border: 1px solid var(--line);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(43, 92, 255, .24); }
.info-card .ico {
  width: 46px; height: 46px; flex: none;
  display: grid; place-items: center;
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(43, 92, 255, .13), rgba(43, 92, 255, .04));
  color: var(--brand);
}
.info-card h4 { font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: 8px; }
.info-card b { font-size: 1.02rem; display: block; word-break: break-all; }
.info-card span { font-size: .855rem; color: var(--muted); }

.form-card {
  padding: 40px;
  border-radius: var(--r-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 9px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: .865rem; font-weight: 600; color: var(--text-2); }
.field label .req { color: var(--brand); }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
  background: var(--mist);
  font-size: .945rem;
  color: var(--text);
  transition: border-color .3s var(--ease), background-color .3s var(--ease), box-shadow .3s var(--ease);
  outline: none;
}
.field textarea { resize: vertical; min-height: 128px; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(43, 92, 255, .1);
}
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #E05252; background: #FEF7F7; }
.field .err { font-size: .8rem; color: #D64141; display: none; }
.field.invalid .err { display: block; }
.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 28px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
}
.form-note { font-size: .83rem; color: var(--muted); max-width: 30em; }
.form-ok {
  display: none;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 16px 20px;
  border-radius: var(--r-sm);
  background: rgba(70, 224, 160, .1);
  border: 1px solid rgba(70, 224, 160, .32);
  color: #1B7A52;
  font-size: .92rem;
}
.form-ok.show { display: flex; animation: fadeUp .5s var(--ease); }
.form-ok.form-err {
  background: rgba(255, 92, 92, .09);
  border-color: rgba(255, 92, 92, .35);
  color: #B23A3A;
}

.office-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.office { padding: 30px; border-radius: var(--r); background: #fff; border: 1px solid var(--line); }
.office .city { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.office .city b { font-size: 1.08rem; }
.office .city .badge {
  font-size: .72rem;
  padding: 2px 9px;
  border-radius: 99px;
  background: rgba(43, 92, 255, .1);
  color: var(--brand);
  font-weight: 600;
}
.office p { font-size: .91rem; color: var(--text-2); }
.office .meta { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line-soft); font-size: .86rem; color: var(--muted); display: grid; gap: 7px; }

/* ---------- 21. 关于我们 ---------- */
.value-card { text-align: left; }
.timeline { position: relative; display: grid; gap: 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 111px; top: 12px; bottom: 12px;
  width: 1px;
  background: var(--line);
}
.tl-item {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 46px;
  padding: 22px 0;
  position: relative;
}
.tl-item .yr { font-family: var(--mono); font-size: 1rem; font-weight: 700; color: var(--brand); padding-top: 2px; }
.tl-body { position: relative; }
.tl-body::before {
  content: "";
  position: absolute;
  left: -51px; top: 11px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--brand);
}
.tl-body h4 { margin-bottom: 8px; font-size: 1.05rem; }
.tl-body p { font-size: .93rem; color: var(--text-2); }

.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.team-item {
  padding: 28px;
  border-radius: var(--r);
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, .045);
  transition: transform .45s var(--ease), border-color .45s var(--ease), background-color .45s var(--ease);
}
.team-item:hover { transform: translateY(-5px); border-color: rgba(91, 140, 255, .4); background: rgba(255, 255, 255, .085); }
.team-item .ico { color: #9DBBFF; margin-bottom: 18px; }
.team-item h4 { color: #fff; margin-bottom: 10px; }
.team-item p { font-size: .9rem; color: var(--on-dark-2); }

/* ---------- 22. 进场动效 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .85s var(--ease), transform .85s var(--ease);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 23. 响应式 ---------- */
@media (max-width: 1080px) {
  :root { --sec-y: 88px; }
  .hero-grid { grid-template-columns: 1fr; gap: 52px; }
  .split { grid-template-columns: 1fr; gap: 44px; }
  .split--rev .split-media { order: 0; }
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(3, 1fr); gap: 32px 20px; }
  .process::before { display: none; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .contact-layout { grid-template-columns: 1fr; gap: 44px; }
  .region-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .office-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 78px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 18px 24px 30px;
    background: rgba(7, 11, 22, .97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line-dark);
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .35s var(--ease), transform .35s var(--ease), visibility .35s;
    max-height: calc(100vh - 78px);
    overflow-y: auto;
  }
  body.nav-open .nav { opacity: 1; visibility: visible; transform: none; }
  .nav-link { padding: 14px 14px; font-size: 1rem; border-radius: 12px; }
  .nav-link.active::after { display: none; }
  .nav-link.active { background: rgba(43, 92, 255, .16); color: #fff; }
  .nav-cta { margin: 14px 0 0; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 32px 22px; }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .g-3, .g-2 { grid-template-columns: 1fr; }
  .hero { padding: 150px 0 88px; }
  .page-hero { padding: 140px 0 66px; }
  .form-card { padding: 28px 22px; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 72px 0; }
  .timeline::before { left: 61px; }
  .tl-item { grid-template-columns: 46px 1fr; gap: 30px; }
  .tl-body::before { left: -35px; }
}

@media (max-width: 620px) {
  :root { --pad: 20px; --sec-y: 72px; }
  .g-4, .region-grid, .team-grid, .office-grid, .process { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 34px; }
  .stat-grid { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--line-soft); }
  .hero-panel { padding: 22px; }
  .visual { padding: 26px 22px; }
  .btn { width: 100%; }
  .btn-row { flex-direction: column; }
  .nav-cta { width: 100%; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-inner .btn { width: 100%; }
  .cta-inner > div:last-child { width: 100%; }
  .form-foot { flex-direction: column; align-items: stretch; }
  h1.h-display { font-size: 2.15rem; }
}

/* ---------- 24. 中英文切换开关 ---------- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 14px;
  padding: 3px;
  border-radius: var(--r-full);
  border: 1px solid var(--line-dark);
  background: rgba(255, 255, 255, .06);
  flex: none;
  transition: border-color .45s var(--ease), background-color .45s var(--ease);
}
.lang-btn {
  height: 30px;
  padding: 0 12px;
  border-radius: var(--r-full);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--on-dark-2);
  transition: color .3s var(--ease), background-color .3s var(--ease);
}
.lang-btn:hover { color: #fff; }
.lang-btn.active { background: var(--brand); color: #fff; }

.site-header.scrolled .lang-switch { border-color: var(--line); background: var(--mist); }
.site-header.scrolled .lang-btn { color: var(--text-2); }
.site-header.scrolled .lang-btn:hover { color: var(--brand); }
.site-header.scrolled .lang-btn.active { background: var(--brand); color: #fff; }

@media (max-width: 860px) {
  .lang-switch { margin-left: auto; margin-right: 12px; }
}
@media (max-width: 620px) {
  .lang-switch { padding: 2px; margin-right: 10px; }
  .lang-btn { height: 26px; padding: 0 9px; font-size: .74rem; }
}