/* ==========================================================================
   星梦云网页设计工作室 · 站点样式
   深色星空科技风 / 响应式布局 / 无外部依赖
   ========================================================================== */

:root {
  --bg: #060a17;
  --bg-2: #0a1024;
  --bg-3: #0d1530;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.075);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e9eefb;
  --muted: #9dabc5;
  --muted-2: #7b88a3;
  --accent: #58e1ff;
  --accent-2: #8b7bff;
  --accent-3: #ff9bd2;
  --ok: #5ee6b3;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 24px 60px rgba(2, 6, 20, 0.55);
  --shadow-soft: 0 12px 30px rgba(2, 6, 20, 0.35);
  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC",
    "Source Han Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 640px at 82% -12%, rgba(88, 225, 255, 0.14), transparent 62%),
    radial-gradient(900px 520px at 8% 6%, rgba(139, 123, 255, 0.16), transparent 60%),
    radial-gradient(800px 600px at 50% 108%, rgba(88, 225, 255, 0.08), transparent 65%),
    linear-gradient(180deg, #050813 0%, #070c1c 46%, #050914 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* 星空层 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 18%, rgba(255, 255, 255, 0.85), transparent),
    radial-gradient(1.2px 1.2px at 28% 62%, rgba(190, 224, 255, 0.7), transparent),
    radial-gradient(1.4px 1.4px at 46% 24%, rgba(255, 255, 255, 0.6), transparent),
    radial-gradient(1px 1px at 62% 74%, rgba(180, 214, 255, 0.75), transparent),
    radial-gradient(1.8px 1.8px at 74% 14%, rgba(255, 255, 255, 0.7), transparent),
    radial-gradient(1.2px 1.2px at 88% 48%, rgba(200, 230, 255, 0.65), transparent),
    radial-gradient(1px 1px at 8% 82%, rgba(255, 255, 255, 0.55), transparent),
    radial-gradient(1.4px 1.4px at 34% 92%, rgba(190, 224, 255, 0.5), transparent),
    radial-gradient(1.1px 1.1px at 96% 88%, rgba(255, 255, 255, 0.45), transparent),
    radial-gradient(1.3px 1.3px at 54% 46%, rgba(160, 200, 255, 0.5), transparent);
  opacity: 0.55;
  animation: twinkle 9s ease-in-out infinite alternate;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(closest-side, transparent 55%, rgba(3, 6, 16, 0.72) 100%);
}

@keyframes twinkle {
  from {
    opacity: 0.35;
  }
  to {
    opacity: 0.72;
  }
}

main,
.site-header,
.site-footer {
  position: relative;
  z-index: 1;
}

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

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

p {
  margin: 0 0 1em;
}

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

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.15rem, 4.9vw, 3.6rem);
}

h2 {
  font-size: clamp(1.7rem, 3.1vw, 2.5rem);
}

h3 {
  font-size: clamp(1.12rem, 1.6vw, 1.32rem);
}

::selection {
  background: rgba(88, 225, 255, 0.28);
  color: #fff;
}

/* 保证脚本用 hidden 属性做的显隐不被 display 规则覆盖 */
[hidden] {
  display: none !important;
}

/* 站内锚点跳转时避开吸顶导航 */
[id] {
  scroll-margin-top: 92px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #04121b;
  font-weight: 700;
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

.container {
  width: min(1200px, 92vw);
  margin-inline: auto;
}

.container-narrow {
  width: min(900px, 92vw);
  margin-inline: auto;
}

/* ---------- 头部导航 ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(5, 9, 20, 0.62);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(5, 9, 20, 0.9);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: linear-gradient(140deg, rgba(88, 225, 255, 0.28), rgba(139, 123, 255, 0.34));
  border: 1px solid rgba(120, 210, 255, 0.4);
  box-shadow: 0 0 22px rgba(88, 225, 255, 0.22);
}

.brand-mark svg {
  width: 24px;
  height: 24px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}

.brand-text em {
  font-style: normal;
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  color: var(--muted-2);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  position: relative;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.94rem;
  color: var(--muted);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.is-active {
  color: var(--text);
  background: rgba(88, 225, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(88, 225, 255, 0.24);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #03121a;
  background: linear-gradient(120deg, #6ceaff, #9f8cff);
  box-shadow: 0 12px 26px rgba(88, 225, 255, 0.24);
}

.btn-primary:hover {
  box-shadow: 0 16px 34px rgba(88, 225, 255, 0.32);
}

.btn-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line-strong);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(88, 225, 255, 0.45);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.88rem;
}

.btn-block {
  width: 100%;
}

.btn .icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ---------- 通用块 ---------- */

.section {
  padding: clamp(64px, 8vw, 104px) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(32px, 4vw, 52px);
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}

.lead {
  color: var(--muted);
  font-size: 1.02rem;
  max-width: 64ch;
}

.section-head.center .lead {
  margin-inline: auto;
}

.grad-text {
  background: linear-gradient(110deg, #9df3ff 10%, #b7a9ff 58%, #ffbde4 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hr-glow {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(88, 225, 255, 0.35), transparent);
  margin: 0;
}

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 6vw, 80px);
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: -1;
}

.hero::before {
  width: 420px;
  height: 420px;
  right: -80px;
  top: -120px;
  background: rgba(139, 123, 255, 0.34);
}

.hero::after {
  width: 320px;
  height: 320px;
  left: -100px;
  bottom: -120px;
  background: rgba(88, 225, 255, 0.2);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.hero-copy h1 {
  margin-bottom: 18px;
}

.hero-copy .lead {
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  color: #b7c2da;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 26px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.83rem;
  color: #c6d1e6;
}

.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 10px rgba(94, 230, 179, 0.8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-note {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--muted-2);
}

/* 首屏视觉：浏览器 + 手机 双端示意 */

.stage {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
}

.stage-glow {
  position: absolute;
  width: 78%;
  height: 62%;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(88, 225, 255, 0.28), transparent 70%);
  filter: blur(24px);
}

.browser-mock {
  position: relative;
  width: min(100%, 470px);
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(170deg, #101a33, #0b1226 62%, #0a1022);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 11px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.03);
}

.browser-bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}

.browser-bar i:nth-child(1) {
  background: #ff7f8a;
}

.browser-bar i:nth-child(2) {
  background: #ffd479;
}

.browser-bar i:nth-child(3) {
  background: #5ee6b3;
}

.browser-url {
  flex: 1;
  margin-left: 8px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.62rem;
  color: var(--muted-2);
  display: flex;
  align-items: center;
  padding: 0 10px;
  letter-spacing: 0.06em;
}

.browser-body {
  padding: 14px;
  display: grid;
  gap: 10px;
}

.mock-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.045);
}

.mock-logo {
  width: 34px;
  height: 10px;
  border-radius: 4px;
  background: linear-gradient(90deg, #58e1ff, #8b7bff);
}

.mock-nav span {
  width: 26px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.16);
}

.mock-nav span:nth-of-type(2) {
  width: 34px;
}

.mock-search {
  margin-left: auto;
  width: 74px;
  height: 12px;
  border-radius: 999px;
  background: rgba(88, 225, 255, 0.16);
  border: 1px solid rgba(88, 225, 255, 0.3);
}

.mock-banner {
  position: relative;
  height: 96px;
  border-radius: 12px;
  background:
    radial-gradient(120px 80px at 82% 20%, rgba(255, 155, 210, 0.5), transparent 70%),
    linear-gradient(120deg, rgba(88, 225, 255, 0.42), rgba(139, 123, 255, 0.55));
  overflow: hidden;
}

.mock-banner::after {
  content: "";
  position: absolute;
  right: 16px;
  bottom: -18px;
  width: 92px;
  height: 92px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.18);
  transform: rotate(12deg);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.mock-lines {
  position: absolute;
  left: 14px;
  top: 18px;
  display: grid;
  gap: 7px;
}

.mock-lines b {
  display: block;
  width: 96px;
  height: 9px;
  border-radius: 4px;
  background: rgba(6, 16, 32, 0.55);
}

.mock-lines b:last-child {
  width: 62px;
  height: 6px;
  background: rgba(6, 16, 32, 0.35);
}

.mock-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.mock-item {
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 6px;
}

.mock-thumb {
  height: 46px;
  border-radius: 7px;
  background: linear-gradient(150deg, rgba(88, 225, 255, 0.35), rgba(139, 123, 255, 0.3));
}

.mock-item:nth-child(2) .mock-thumb {
  background: linear-gradient(150deg, rgba(255, 155, 210, 0.4), rgba(139, 123, 255, 0.28));
}

.mock-item:nth-child(3) .mock-thumb {
  background: linear-gradient(150deg, rgba(94, 230, 179, 0.35), rgba(88, 225, 255, 0.28));
}

.mock-item:nth-child(4) .mock-thumb {
  background: linear-gradient(150deg, rgba(255, 212, 121, 0.38), rgba(255, 155, 210, 0.26));
}

.mock-item em {
  display: block;
  margin-top: 6px;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.16);
}

.mock-item b {
  display: block;
  margin-top: 5px;
  width: 46%;
  height: 7px;
  border-radius: 3px;
  background: rgba(88, 225, 255, 0.45);
}

.phone-mock {
  position: absolute;
  right: -4px;
  bottom: -14px;
  width: 158px;
  border-radius: 26px;
  padding: 8px;
  background: linear-gradient(170deg, #18233d, #0c1428);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 22px 44px rgba(2, 6, 20, 0.6);
}

.phone-screen {
  border-radius: 20px;
  background: #070d1d;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 8px 6px;
  display: grid;
  gap: 7px;
}

.phone-notch {
  width: 44px;
  height: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  margin: 0 auto 2px;
}

.phone-banner {
  height: 44px;
  border-radius: 9px;
  background: linear-gradient(120deg, rgba(139, 123, 255, 0.55), rgba(88, 225, 255, 0.4));
}

.phone-rows {
  display: grid;
  gap: 6px;
}

.phone-rows span {
  height: 24px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.phone-tabbar {
  display: flex;
  justify-content: space-between;
  padding: 6px 4px 2px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.phone-tabbar i {
  width: 12px;
  height: 12px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.18);
}

.phone-tabbar i.is-on {
  background: var(--accent);
  box-shadow: 0 0 10px rgba(88, 225, 255, 0.6);
}

.stage-tag {
  position: absolute;
  left: 6px;
  bottom: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  color: #cfe6ff;
  background: rgba(6, 12, 28, 0.75);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

/* ---------- 数据带 ---------- */

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--line);
}

.metric {
  padding: 26px 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
}

.metric .num {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  background: linear-gradient(110deg, #9df3ff, #b7a9ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.metric .num small {
  font-size: 0.9rem;
  margin-left: 2px;
  font-weight: 600;
}

.metric p {
  margin: 6px 0 0;
  font-size: 0.86rem;
  color: var(--muted);
}

/* ---------- 卡片 ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card {
  position: relative;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.017));
  box-shadow: var(--shadow-soft);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(88, 225, 255, 0.55), transparent);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(88, 225, 255, 0.35);
  box-shadow: 0 22px 46px rgba(2, 6, 20, 0.5);
}

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

.card-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 13px;
  color: #a9efff;
  background: linear-gradient(140deg, rgba(88, 225, 255, 0.18), rgba(139, 123, 255, 0.2));
  border: 1px solid rgba(120, 210, 255, 0.28);
}

.card-icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 0.94rem;
  margin-bottom: 14px;
}

.tick-list {
  display: grid;
  gap: 8px;
}

.tick-list li {
  position: relative;
  padding-left: 22px;
  font-size: 0.9rem;
  color: #c3cee2;
}

.tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 11px;
  height: 6px;
  border-left: 1.6px solid var(--accent);
  border-bottom: 1.6px solid var(--accent);
  transform: rotate(-45deg);
}

.card-foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.84rem;
  color: var(--muted-2);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
}

.text-link::after {
  content: "→";
  transition: transform 0.2s var(--ease);
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* ---------- 案例卡 ---------- */

.case-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.filter-btn {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.86rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.filter-btn.is-on {
  color: #03121a;
  background: linear-gradient(120deg, #6ceaff, #9f8cff);
  border-color: transparent;
  font-weight: 600;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.case-card:hover {
  transform: translateY(-5px);
  border-color: rgba(88, 225, 255, 0.32);
}

.case-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  padding: 16px;
  display: grid;
  place-items: center;
  background:
    radial-gradient(220px 140px at 80% 12%, rgba(255, 155, 210, 0.28), transparent 70%),
    radial-gradient(240px 160px at 10% 90%, rgba(88, 225, 255, 0.3), transparent 70%),
    linear-gradient(160deg, #121d38, #0a1126);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.case-thumb.has-img {
  padding: 0;
  display: block;
  background: linear-gradient(160deg, #121d38, #0a1126);
}

.case-thumb.has-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 9, 20, 0) 52%, rgba(5, 9, 20, 0.55) 100%);
  pointer-events: none;
}

.case-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.5s var(--ease);
}

.case-card:hover .case-img {
  transform: scale(1.03);
}

.case-thumb .browser-mock {
  width: 100%;
  box-shadow: 0 18px 34px rgba(2, 6, 20, 0.6);
}

.case-thumb .browser-body {
  padding: 9px;
  gap: 7px;
}

.case-thumb .mock-banner {
  height: 54px;
}

.case-thumb .mock-thumb {
  height: 34px;
}

.case-thumb .mock-lines b {
  width: 66px;
  height: 7px;
}

.case-thumb .mock-lines {
  top: 12px;
  left: 10px;
  gap: 5px;
}

.case-thumb .mock-lines b:last-child {
  width: 44px;
  height: 5px;
}

.case-thumb-phone {
  position: absolute;
  right: 18px;
  bottom: 10px;
  width: 84px;
  border-radius: 16px;
  padding: 5px;
  background: linear-gradient(170deg, #1a2540, #0b1226);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 14px 26px rgba(2, 6, 20, 0.55);
}

.case-thumb-phone .phone-screen {
  padding: 6px 5px 4px;
  gap: 4px;
  border-radius: 12px;
}

.case-thumb-phone .phone-notch {
  width: 26px;
  height: 3px;
}

.case-thumb-phone .phone-banner {
  height: 26px;
}

.case-thumb-phone .phone-rows span {
  height: 14px;
}

.case-thumb-phone .phone-tabbar i {
  width: 7px;
  height: 7px;
}

.case-thumb-tag {
  position: absolute;
  left: 12px;
  bottom: 12px;
  z-index: 2;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: #cfe6ff;
  background: rgba(5, 10, 24, 0.78);
  border: 1px solid var(--line);
}

.case-body {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.case-body h3 {
  margin: 0;
  font-size: 1.06rem;
}

.case-body p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
}

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  color: #b8c8e0;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.note-line {
  margin-top: 26px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--line-strong);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.85rem;
  color: var(--muted-2);
}

/* ---------- 流程 / 时间线 ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  counter-reset: step;
}

.step {
  position: relative;
  padding: 24px 22px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
}

.step::before {
  counter-increment: step;
  content: "0" counter(step);
  display: block;
  margin-bottom: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--accent);
}

.step h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.timeline {
  position: relative;
  display: grid;
  gap: 22px;
  padding-left: 30px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, rgba(88, 225, 255, 0.65), rgba(139, 123, 255, 0.25), transparent);
}

.tl-item {
  position: relative;
  padding: 20px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 26px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(88, 225, 255, 0.14);
}

.tl-item .tl-year {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 700;
}

.tl-item h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.tl-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 表格 ---------- */

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
  font-size: 0.9rem;
}

th,
td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

thead th {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(88, 225, 255, 0.06);
  white-space: nowrap;
}

tbody tr:last-child td {
  border-bottom: 0;
}

td strong {
  color: #dbe6f8;
}

/* ---------- 页面头 ---------- */

.page-hero {
  padding: clamp(48px, 6vw, 76px) 0 clamp(32px, 4vw, 48px);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: -40% 0 auto;
  height: 420px;
  background: radial-gradient(60% 100% at 50% 100%, rgba(139, 123, 255, 0.24), transparent 75%);
  pointer-events: none;
}

.page-hero .lead {
  margin-top: 6px;
}

.crumbs {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.8rem;
  color: var(--muted-2);
  margin-bottom: 18px;
}

.crumbs a:hover {
  color: var(--accent);
}

/* ---------- FAQ ---------- */

.faq {
  display: grid;
  gap: 12px;
}

.faq-item {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  color: var(--accent);
  font-weight: 400;
  transition: transform 0.25s var(--ease);
}

.faq-item[open] summary::after {
  content: "–";
  transform: rotate(180deg);
}

.faq-item p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- 联系 / 表单 ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 20px;
  align-items: start;
}

.panel {
  padding: clamp(24px, 3vw, 32px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.018));
  box-shadow: var(--shadow-soft);
}

.qq-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(88, 225, 255, 0.28);
  background: linear-gradient(120deg, rgba(88, 225, 255, 0.12), rgba(139, 123, 255, 0.12));
  margin: 18px 0;
}

.qq-card .qq-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  flex-shrink: 0;
}

.qq-card .qq-icon svg {
  width: 24px;
  height: 24px;
}

.qq-card span {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.qq-card strong {
  display: block;
  font-size: 1.32rem;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.contact-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--muted);
}

.contact-list .k {
  flex-shrink: 0;
  width: 62px;
  color: var(--muted-2);
  font-size: 0.84rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.82rem;
  color: var(--muted);
}

.field .req {
  color: var(--accent-3);
  margin-left: 2px;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: rgba(6, 12, 28, 0.7);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

input::placeholder,
textarea::placeholder {
  color: #6c7a94;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(88, 225, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(88, 225, 255, 0.14);
}

textarea {
  min-height: 116px;
  resize: vertical;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #8fa0bb 50%),
    linear-gradient(135deg, #8fa0bb 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% - 2px), calc(100% - 13px) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.form-hint {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted-2);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.form-status {
  display: none;
  margin-top: 16px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(94, 230, 179, 0.32);
  background: rgba(94, 230, 179, 0.08);
  font-size: 0.88rem;
  color: #c8f5e2;
}

.form-status.is-visible {
  display: block;
}

.form-status .summary-text {
  margin: 10px 0 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  background: rgba(3, 9, 20, 0.55);
  border: 1px dashed rgba(255, 255, 255, 0.14);
  color: #dce6f6;
  font-size: 0.86rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ---------- CTA 横幅 ---------- */

.cta-band {
  position: relative;
  padding: clamp(32px, 5vw, 52px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(88, 225, 255, 0.24);
  background:
    radial-gradient(420px 200px at 88% 10%, rgba(255, 155, 210, 0.2), transparent 70%),
    linear-gradient(120deg, rgba(88, 225, 255, 0.14), rgba(139, 123, 255, 0.18));
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
}

.cta-band h2 {
  margin-bottom: 8px;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
}

.cta-band p {
  margin: 0;
  color: #cdd9ee;
  font-size: 0.95rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 页脚 ---------- */

.site-footer {
  margin-top: clamp(48px, 6vw, 80px);
  padding: 48px 0 28px;
  border-top: 1px solid var(--line);
  background: rgba(4, 8, 18, 0.6);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 28px;
}

.footer-brand p {
  margin: 14px 0 0;
  font-size: 0.88rem;
  color: var(--muted);
  max-width: 34ch;
}

.footer-col h4 {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-col ul {
  display: grid;
  gap: 8px;
}

.footer-col a {
  font-size: 0.88rem;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--muted-2);
}

/* ---------- 滚动出现动效 ---------- */

.reveal {
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

/* 仅在 JS 可用时启用入场动画，避免脚本失效时内容不可见 */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .stage {
    min-height: 360px;
    margin-top: 8px;
  }

  .browser-mock {
    width: min(100%, 460px);
    margin-inline: auto;
  }

  .phone-mock {
    right: max(0px, calc(50% - 250px));
  }

  .grid-3,
  .case-list,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .cta-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .header-inner {
    flex-wrap: wrap;
    row-gap: 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0 0 14px;
    padding: 10px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: rgba(8, 14, 30, 0.96);
    display: none;
  }

  .nav.is-open {
    display: flex;
  }

  .nav-link {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }

  .header-actions {
    margin-left: auto;
  }

  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .section {
    padding: 56px 0;
  }

  .grid-3,
  .case-list,
  .steps,
  .metrics {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 22px 20px;
  }

  .hero-badges {
    margin: 18px 0 22px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .stage {
    min-height: 320px;
  }

  .phone-mock {
    width: 128px;
    right: 0;
  }

  .phone-mock .phone-banner {
    height: 36px;
  }

  .stage-tag {
    left: 0;
    font-size: 0.66rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .qq-card strong {
    font-size: 1.18rem;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .brand-text em {
    letter-spacing: 0.12em;
  }

  table {
    min-width: 560px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  body::before {
    animation: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ==========================================================================
   首页深蓝商务主题（作用域：body.theme-biz，其余页面保持原星空科技风）
   ========================================================================== */

.theme-biz {
  --bg: #061428;
  --bg-2: #0a2342;
  --bg-3: #0d2c52;
  --surface: rgba(20, 50, 90, 0.55);
  --surface-strong: rgba(28, 64, 112, 0.72);
  --line: rgba(126, 178, 255, 0.16);
  --line-strong: rgba(126, 178, 255, 0.3);
  --text: #e8f0fb;
  --muted: #9fb2cd;
  --muted-2: #7d90ab;
  --accent: #4a8dff;
  --accent-2: #8ab4ff;
  --accent-3: #cfe0ff;
  --ok: #4a8dff;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow: 0 20px 44px rgba(3, 12, 26, 0.55);
  --shadow-soft: 0 10px 26px rgba(3, 12, 26, 0.4);
  background-color: #061428;
  background-image:
    linear-gradient(180deg, #05111f 0%, #08203c 42%, #061a31 100%);
  background-attachment: fixed;
}

/* 去掉星点，换成规整网格 */
body.theme-biz::before {
  background-image:
    linear-gradient(rgba(126, 178, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 178, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
  opacity: 0.7;
  animation: none;
}

body.theme-biz::after {
  background:
    radial-gradient(900px 520px at 78% -8%, rgba(74, 141, 255, 0.22), transparent 62%),
    radial-gradient(700px 460px at 6% 4%, rgba(35, 96, 200, 0.18), transparent 60%);
}

/* 头部：实心深蓝 + 细边 */
.theme-biz .site-header {
  background: rgba(6, 20, 40, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(126, 178, 255, 0.12);
}

.theme-biz .site-header.is-scrolled {
  background: rgba(5, 17, 33, 0.97);
  border-bottom-color: rgba(126, 178, 255, 0.22);
}

.theme-biz .brand-mark {
  border-radius: 8px;
  background: linear-gradient(140deg, #2f6fe4, #1b4ea8);
  border: 1px solid rgba(138, 180, 255, 0.4);
  box-shadow: 0 6px 16px rgba(20, 60, 130, 0.45);
}

.theme-biz .brand-text em {
  color: #8ea7c6;
}

.theme-biz .nav-link {
  border-radius: 6px;
  color: #a8bcd8;
}

.theme-biz .nav-link:hover {
  background: rgba(138, 180, 255, 0.1);
  color: #eaf2ff;
}

.theme-biz .nav-link.is-active {
  background: rgba(74, 141, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(74, 141, 255, 0.34);
  color: #ffffff;
}

/* 按钮：直角化、实心深蓝 */
.theme-biz .btn {
  border-radius: 8px;
  letter-spacing: 0.01em;
}

.theme-biz .btn-primary {
  color: #ffffff;
  background: linear-gradient(180deg, #3a7cf0, #1d55bd);
  box-shadow: 0 8px 20px rgba(20, 62, 140, 0.45);
}

.theme-biz .btn-primary:hover {
  background: linear-gradient(180deg, #4a8aff, #2461cc);
  box-shadow: 0 10px 24px rgba(24, 74, 160, 0.5);
}

.theme-biz .btn-ghost {
  background: rgba(20, 50, 90, 0.5);
  border-color: rgba(126, 178, 255, 0.32);
  color: #dbe7f7;
}

.theme-biz .btn-ghost:hover {
  background: rgba(30, 70, 122, 0.62);
  border-color: rgba(138, 180, 255, 0.55);
}

/* 首屏 */
.theme-biz .hero::before {
  width: 520px;
  height: 520px;
  right: -140px;
  top: -160px;
  background: rgba(40, 104, 214, 0.35);
  filter: blur(100px);
}

.theme-biz .hero::after {
  width: 380px;
  height: 380px;
  left: -120px;
  bottom: -140px;
  background: rgba(24, 72, 156, 0.28);
  filter: blur(90px);
}

.theme-biz .eyebrow {
  color: #8ab4ff;
  letter-spacing: 0.16em;
}

.theme-biz .eyebrow::before {
  background: linear-gradient(90deg, transparent, #4a8dff);
}

.theme-biz .grad-text {
  background: linear-gradient(96deg, #ffffff 8%, #b9d3ff 62%, #7ea8e8 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.theme-biz .hero-copy .lead {
  color: #b3c5dd;
}

.theme-biz .badge {
  border-radius: 4px;
  border-color: rgba(126, 178, 255, 0.22);
  background: rgba(18, 46, 84, 0.6);
  color: #c2d4ea;
  font-size: 0.82rem;
}

.theme-biz .badge .dot {
  background: #6fa8ff;
  box-shadow: 0 0 8px rgba(111, 168, 255, 0.9);
}

.theme-biz .hero-note {
  color: #7f93ad;
}

/* 首屏界面示意改蓝调 */
.theme-biz .stage-glow {
  background: radial-gradient(closest-side, rgba(74, 141, 255, 0.26), transparent 70%);
}

.theme-biz .browser-mock {
  border-radius: 10px;
  border-color: rgba(126, 178, 255, 0.22);
  background: linear-gradient(170deg, #0d2c52, #071c36 62%, #06182e);
}

.theme-biz .browser-bar {
  background: rgba(138, 180, 255, 0.06);
  border-bottom-color: rgba(126, 178, 255, 0.12);
}

.theme-biz .browser-url {
  background: rgba(138, 180, 255, 0.1);
  color: #8ea7c6;
}

.theme-biz .mock-nav {
  background: rgba(138, 180, 255, 0.08);
}

.theme-biz .mock-logo {
  background: linear-gradient(90deg, #8ab4ff, #3a7cf0);
}

.theme-biz .mock-search {
  background: rgba(74, 141, 255, 0.2);
  border-color: rgba(74, 141, 255, 0.4);
}

.theme-biz .mock-banner {
  background:
    radial-gradient(160px 100px at 86% 18%, rgba(255, 255, 255, 0.28), transparent 70%),
    linear-gradient(120deg, #3477e8, #1b4ea8);
}

.theme-biz .mock-lines b {
  background: rgba(6, 20, 40, 0.55);
}

.theme-biz .mock-lines b:last-child {
  background: rgba(6, 20, 40, 0.38);
}

.theme-biz .mock-item {
  background: rgba(138, 180, 255, 0.07);
  border-color: rgba(126, 178, 255, 0.1);
}

.theme-biz .mock-thumb,
.theme-biz .mock-item .mock-thumb {
  background: linear-gradient(150deg, #4a8dff, #1f5cba);
}

.theme-biz .mock-item:nth-child(2) .mock-thumb {
  background: linear-gradient(150deg, #6fa8ff, #2c62c8);
}

.theme-biz .mock-item:nth-child(3) .mock-thumb {
  background: linear-gradient(150deg, #9cc0ff, #4a7fd6);
}

.theme-biz .mock-item:nth-child(4) .mock-thumb {
  background: linear-gradient(150deg, #3a7cf0, #163f86);
}

.theme-biz .mock-item b {
  background: rgba(138, 180, 255, 0.65);
}

.theme-biz .mock-item em {
  background: rgba(200, 220, 245, 0.24);
}

.theme-biz .phone-mock {
  border-radius: 20px;
  border-color: rgba(126, 178, 255, 0.24);
  background: linear-gradient(170deg, #123458, #071c36);
}

.theme-biz .phone-screen {
  border-radius: 15px;
  background: #061628;
  border-color: rgba(126, 178, 255, 0.12);
}

.theme-biz .phone-banner {
  background: linear-gradient(120deg, #3a7cf0, #1b4ea8);
}

.theme-biz .phone-rows span {
  background: rgba(138, 180, 255, 0.1);
  border-color: rgba(126, 178, 255, 0.08);
}

.theme-biz .phone-tabbar {
  border-top-color: rgba(126, 178, 255, 0.14);
}

.theme-biz .phone-tabbar i.is-on {
  background: #6fa8ff;
  box-shadow: 0 0 8px rgba(111, 168, 255, 0.7);
}

.theme-biz .stage-tag {
  border-radius: 4px;
  background: rgba(6, 20, 40, 0.85);
  border-color: rgba(126, 178, 255, 0.22);
  color: #b9cee9;
}

/* 数据带 */
.theme-biz .metrics {
  border-radius: 12px;
  border-color: rgba(126, 178, 255, 0.18);
  background: rgba(126, 178, 255, 0.18);
}

.theme-biz .metric {
  background: linear-gradient(180deg, #0d2c52, #08203a);
  position: relative;
}

.theme-biz .metric::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 2px;
  background: #4a8dff;
}

.theme-biz .metric .num {
  background: linear-gradient(100deg, #ffffff, #a9c6f2);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.theme-biz .metric p {
  color: #9fb2cd;
}

/* 卡片 */
.theme-biz .card {
  border-radius: 10px;
  border-color: rgba(126, 178, 255, 0.16);
  background: linear-gradient(180deg, rgba(19, 48, 88, 0.72), rgba(8, 28, 52, 0.86));
  box-shadow: 0 12px 28px rgba(3, 12, 26, 0.35);
}

.theme-biz .card::before {
  background: linear-gradient(90deg, transparent, rgba(74, 141, 255, 0.75), transparent);
}

.theme-biz .card:hover {
  border-color: rgba(74, 141, 255, 0.45);
  box-shadow: 0 18px 38px rgba(3, 12, 26, 0.5);
}

.theme-biz .card-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  color: #cfe0ff;
  background: rgba(74, 141, 255, 0.16);
  border: 1px solid rgba(74, 141, 255, 0.35);
}

.theme-biz .card h3 {
  font-weight: 600;
}

.theme-biz .card p,
.theme-biz .tick-list li {
  color: #a8bcd8;
}

.theme-biz .tick-list li::before {
  border-color: #6fa8ff;
}

.theme-biz .card-foot {
  border-top-color: rgba(126, 178, 255, 0.16);
  color: #7f93ad;
}

.theme-biz .text-link {
  color: #8ab4ff;
}

/* 案例卡 */
.theme-biz .case-card {
  border-radius: 10px;
  border-color: rgba(126, 178, 255, 0.16);
  background: linear-gradient(180deg, rgba(19, 48, 88, 0.7), rgba(8, 28, 52, 0.9));
}

.theme-biz .case-card:hover {
  border-color: rgba(74, 141, 255, 0.45);
}

.theme-biz .case-thumb {
  background: linear-gradient(160deg, #0d2c52, #071c36);
}

.theme-biz .case-thumb.has-img {
  background: linear-gradient(160deg, #0d2c52, #071c36);
}

.theme-biz .case-thumb-tag {
  border-radius: 4px;
  background: rgba(6, 20, 40, 0.85);
  border-color: rgba(126, 178, 255, 0.24);
  color: #b9cee9;
}

.theme-biz .tag {
  border-radius: 4px;
  border-color: rgba(126, 178, 255, 0.2);
  background: rgba(18, 46, 84, 0.6);
  color: #b6cbe6;
}

.theme-biz .case-body h3 {
  font-weight: 600;
}

.theme-biz .case-body p {
  color: #9fb2cd;
}

/* 交付保障 / 流程 */
.theme-biz .step {
  border-radius: 10px;
  border-color: rgba(126, 178, 255, 0.16);
  background: linear-gradient(180deg, rgba(19, 48, 88, 0.6), rgba(8, 28, 52, 0.8));
}

.theme-biz .step::before {
  color: #6fa8ff;
  letter-spacing: 0.12em;
}

.theme-biz .step p {
  color: #a1b5cf;
}

/* 十年小结时间线 */
.theme-biz .timeline::before {
  background: linear-gradient(180deg, rgba(74, 141, 255, 0.75), rgba(74, 141, 255, 0.2), transparent);
}

.theme-biz .tl-item {
  border-radius: 10px;
  border-color: rgba(126, 178, 255, 0.16);
  background: rgba(16, 42, 76, 0.62);
}

.theme-biz .tl-item::before {
  background: #4a8dff;
  box-shadow: 0 0 0 4px rgba(74, 141, 255, 0.16);
}

.theme-biz .tl-item .tl-year {
  color: #8ab4ff;
  letter-spacing: 0.1em;
}

.theme-biz .tl-item p {
  color: #a1b5cf;
}

/* CTA 横幅 */
.theme-biz .cta-band {
  border-radius: 12px;
  border-color: rgba(74, 141, 255, 0.32);
  background:
    radial-gradient(420px 200px at 92% 6%, rgba(138, 180, 255, 0.22), transparent 70%),
    linear-gradient(120deg, #12376a, #0a2342 68%);
}

.theme-biz .cta-band p {
  color: #b6cbe6;
}

/* 页脚 */
.theme-biz .site-footer {
  background: #04101f;
  border-top-color: rgba(126, 178, 255, 0.14);
}

.theme-biz .footer-col a {
  color: #9fb2cd;
}

.theme-biz .footer-col a:hover {
  color: #8ab4ff;
}

.theme-biz .footer-bottom {
  border-top-color: rgba(126, 178, 255, 0.14);
  color: #7d90ab;
}

.theme-biz .hr-glow {
  background: linear-gradient(90deg, transparent, rgba(74, 141, 255, 0.4), transparent);
}

@media (max-width: 640px) {
  body.theme-biz::before {
    background-size: 56px 56px, 56px 56px;
  }

  .theme-biz .metric::before {
    top: 24%;
    bottom: 24%;
  }
}