/* ============================================================
   启点星球 QIDIAN PLANET — 官网设计系统
   品牌调性：AI 科技力 × ToB 专业可信 × 效果导向
   视觉方向：深色科技底 + 霓虹光效 + 粒子动效 + AI 数据流
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 主色（深空蓝黑） */
  --bg-0: #070b1c;
  --bg-1: #0b1026;
  --bg-2: #0f2a4a;
  --bg-3: #132f52;

  /* 辅助色（科技青） */
  --cyan: #22d3ee;
  --cyan-2: #38bdf8;
  --cyan-dim: rgba(34, 211, 238, 0.14);

  /* 点缀色（能量金） */
  --gold: #d9a441;
  --gold-2: #f5c97b;
  --gold-dim: rgba(217, 164, 65, 0.14);

  /* 中性色 */
  --white: #ffffff;
  --text-2: #a3b1c6;
  --text-3: #6b7a99;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.055);

  /* 功能色 */
  --success: #34d399;
  --warn: #fbbf24;
  --error: #f87171;

  /* 字体 */
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: "Inter", "DIN Alternate", "SF Mono", ui-sans-serif, sans-serif;

  /* 尺度 */
  --maxw: 1240px;
  --radius: 18px;
  --radius-sm: 12px;
  --nav-h: 72px;

  /* 阴影 / 光效 */
  --glow-cyan: 0 0 24px rgba(34, 211, 238, 0.35);
  --glow-gold: 0 0 26px rgba(217, 164, 65, 0.32);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
  background: var(--bg-1);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 全站背景：深空蓝黑渐变 + 网格 + 光斑 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(1100px 700px at 12% -8%, rgba(34, 211, 238, 0.13), transparent 60%),
    radial-gradient(900px 620px at 92% 8%, rgba(217, 164, 65, 0.09), transparent 62%),
    radial-gradient(1000px 800px at 50% 108%, rgba(56, 189, 248, 0.09), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 45%, #06091a 100%);
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 35%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 35%, transparent 100%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  color: var(--white);
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 700;
}
h1 { font-size: clamp(2.2rem, 4.6vw, 3.9rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 1.6vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.02rem; font-weight: 600; }
p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }
strong { color: var(--white); font-weight: 600; }

::selection { background: rgba(34, 211, 238, 0.3); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #080d20; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--cyan), #1a6fa8);
  border-radius: 10px;
  border: 2px solid #080d20;
}

/* ---------- 3. 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 96px 0; position: relative; }
.section--tight { padding: 64px 0; }
.section--alt {
  background: linear-gradient(180deg, rgba(15, 42, 74, 0.34), rgba(7, 11, 28, 0.1));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head { max-width: 760px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  font-family: var(--font-num);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}
.section-head h2 { margin-bottom: 16px; }
.section-head p { font-size: 1.03rem; color: var(--text-2); }

.gradient-text {
  background: linear-gradient(100deg, var(--white) 10%, var(--cyan-2) 45%, var(--gold-2) 92%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.gold-text { color: var(--gold-2); }
.cyan-text { color: var(--cyan); }

.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-2) 20%, var(--line-2) 80%, transparent);
  margin: 40px 0;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(100deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #1a1206;
  box-shadow: 0 8px 24px rgba(217, 164, 65, 0.28);
}
.btn-primary:hover { box-shadow: 0 12px 34px rgba(217, 164, 65, 0.42), var(--glow-gold); }

.btn-outline {
  border-color: rgba(34, 211, 238, 0.5);
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.06);
}
.btn-outline:hover {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.12);
  box-shadow: var(--glow-cyan);
}

.btn-ghost {
  border-color: var(--line-2);
  color: var(--white);
  background: var(--surface);
}
.btn-ghost:hover { border-color: var(--line-2); background: var(--surface-2); }

.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--cyan);
  font-size: 0.92rem;
  font-weight: 600;
}
.link-arrow::after {
  content: "→";
  transition: transform 0.25s var(--ease);
}
.link-arrow:hover::after { transform: translateX(5px); }

/* ---------- 5. 导航 ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 12, 30, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.nav-inner {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(140deg, rgba(34, 211, 238, 0.22), rgba(217, 164, 65, 0.2));
  border: 1px solid rgba(34, 211, 238, 0.4);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.25) inset;
}
.brand-text { line-height: 1.1; }
.brand-text b {
  display: block;
  color: var(--white);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
}
.brand-text span {
  font-family: var(--font-num);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--text-3);
  text-transform: uppercase;
}

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-menu a {
  position: relative;
  padding: 8px 13px;
  font-size: 0.92rem;
  color: var(--text-2);
  border-radius: 9px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-menu a:hover { color: var(--white); background: var(--surface); }
.nav-menu a.active { color: var(--cyan); }
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 10px; margin-left: 8px; }
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: var(--surface);
}
.lang-switch a {
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-family: var(--font-num);
  color: var(--text-3);
  transition: all 0.2s var(--ease);
}
.lang-switch a.on { background: rgba(34, 211, 238, 0.16); color: var(--cyan); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-2);
  border-radius: 11px;
  background: var(--surface);
  cursor: pointer;
  padding: 0;
  place-items: center;
}
.nav-toggle i {
  display: block;
  width: 18px; height: 1.6px;
  background: var(--white);
  position: relative;
}
.nav-toggle i::before,
.nav-toggle i::after {
  content: "";
  position: absolute; left: 0;
  width: 18px; height: 1.6px;
  background: var(--white);
  transition: transform 0.3s var(--ease);
}
.nav-toggle i::before { top: -6px; }
.nav-toggle i::after { top: 6px; }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  z-index: 99;
  background: rgba(7, 11, 28, 0.97);
  backdrop-filter: blur(14px);
  padding: 22px 24px 40px;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  overflow-y: auto;
}
.drawer.open { transform: translateX(0); }
.drawer a {
  display: block;
  padding: 15px 4px;
  font-size: 1.05rem;
  color: var(--white);
  border-bottom: 1px solid var(--line);
}
.drawer a.active { color: var(--cyan); }
.drawer .drawer-cta { margin-top: 24px; display: grid; gap: 12px; }

/* ---------- 6. 卡片 ---------- */
.card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease), background 0.35s var(--ease);
  overflow: hidden;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(34, 211, 238, 0.11), transparent 62%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.42);
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(34, 211, 238, 0.12);
}
.card:hover::after { opacity: 1; }
.card h3 { margin-bottom: 10px; }
.card p { font-size: 0.93rem; }

.icon-box {
  width: 50px; height: 50px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(34, 211, 238, 0.18), rgba(34, 211, 238, 0.04));
  border: 1px solid rgba(34, 211, 238, 0.32);
  margin-bottom: 18px;
  color: var(--cyan);
}
.icon-box.gold {
  background: linear-gradient(140deg, rgba(217, 164, 65, 0.2), rgba(217, 164, 65, 0.04));
  border-color: rgba(217, 164, 65, 0.38);
  color: var(--gold-2);
}
.icon-box svg { width: 24px; height: 24px; }

.grid { display: grid; gap: 22px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 7. 首屏 Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 48px) 0 72px;
  overflow: hidden;
}
#particles {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}
.hero-glow.a { width: 480px; height: 480px; top: -80px; left: -100px; background: rgba(34, 211, 238, 0.16); }
.hero-glow.b { width: 420px; height: 420px; bottom: -120px; right: -80px; background: rgba(217, 164, 65, 0.13); }

.hero-inner { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 8px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: rgba(34, 211, 238, 0.07);
  font-size: 0.82rem;
  color: var(--cyan);
  margin-bottom: 26px;
}
.hero-badge .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55); }
  70% { box-shadow: 0 0 0 9px rgba(34, 211, 238, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}
.hero h1 { margin-bottom: 20px; max-width: 900px; }
.hero h1 .line-gold {
  background: linear-gradient(100deg, var(--gold-2), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  color: var(--text-2);
  max-width: 660px;
  margin-bottom: 14px;
}
.hero-slogan {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--gold-2);
  margin-bottom: 34px;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-3);
  font-family: var(--font-num);
}
.hero-scroll .bar {
  width: 1px; height: 42px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  animation: scrollbar 2.2s var(--ease) infinite;
}
@keyframes scrollbar {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  40% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  60% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* 双业务入口大卡 */
.biz-card {
  position: relative;
  display: block;
  padding: 34px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(19, 47, 82, 0.55), rgba(11, 16, 38, 0.75));
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.biz-card::before {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  right: -110px; top: -140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.22), transparent 68%);
  transition: transform 0.6s var(--ease);
}
.biz-card.gold::before { background: radial-gradient(circle, rgba(217, 164, 65, 0.22), transparent 68%); }
.biz-card:hover { transform: translateY(-8px); border-color: rgba(34, 211, 238, 0.45); }
.biz-card.gold:hover { border-color: rgba(217, 164, 65, 0.5); }
.biz-card:hover::before { transform: scale(1.25); }
.biz-card > * { position: relative; }
.biz-card .num {
  font-family: var(--font-num);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--text-3);
}
.biz-card h3 { font-size: 1.5rem; margin: 8px 0 12px; }
.biz-card p { font-size: 0.95rem; min-height: 54px; }
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: 7px;
  font-size: 0.76rem;
  background: rgba(34, 211, 238, 0.09);
  border: 1px solid rgba(34, 211, 238, 0.24);
  color: var(--cyan);
}
.tag.gold { background: rgba(217, 164, 65, 0.1); border-color: rgba(217, 164, 65, 0.28); color: var(--gold-2); }
.tag.plain { background: var(--surface); border-color: var(--line-2); color: var(--text-2); }

/* ---------- 8. 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.stat {
  background: linear-gradient(180deg, rgba(15, 42, 74, 0.5), rgba(7, 11, 28, 0.6));
  padding: 30px 24px;
  text-align: center;
}
.stat .value {
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 3.2vw, 2.7rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}
.stat .value .unit { font-size: 0.5em; color: var(--cyan); }
.stat .label { font-size: 0.85rem; color: var(--text-3); margin-top: 6px; }

/* ---------- 9. 流程 / 数据流 ---------- */
.flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.flow-step { position: relative; padding: 0 26px; text-align: center; }
.flow-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 42px;
  right: -14px;
  width: 28px; height: 2px;
  background: repeating-linear-gradient(90deg, rgba(34, 211, 238, 0.7) 0 6px, transparent 6px 12px);
  animation: dashmove 1.1s linear infinite;
}
@keyframes dashmove { to { background-position: 12px 0; } }
.flow-node {
  width: 84px; height: 84px;
  margin: 0 auto 20px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  background: linear-gradient(150deg, rgba(34, 211, 238, 0.16), rgba(15, 42, 74, 0.7));
  border: 1px solid rgba(34, 211, 238, 0.4);
  box-shadow: 0 0 26px rgba(34, 211, 238, 0.16) inset;
  color: var(--cyan);
}
.flow-node svg { width: 34px; height: 34px; }
.flow-step h4 { margin-bottom: 8px; font-size: 1.06rem; }
.flow-step p { font-size: 0.89rem; }
.flow-step .idx {
  font-family: var(--font-num);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--text-3);
  display: block;
  margin-bottom: 10px;
}

/* AI 数据流可视化 */
.datastream {
  position: relative;
  height: 120px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15, 42, 74, 0.4), rgba(7, 11, 28, 0.5));
  overflow: hidden;
  margin-bottom: 40px;
}
.datastream .track {
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.28), transparent);
}
.datastream .pkt {
  position: absolute;
  top: 50%;
  width: 8px; height: 8px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pktmove 4.5s linear infinite;
}
.datastream .pkt.gold { background: var(--gold-2); box-shadow: 0 0 12px var(--gold); }
@keyframes pktmove {
  0% { left: -12px; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}

/* ---------- 10. 套餐 / 表格 ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.012));
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}
.plan:hover { transform: translateY(-6px); }
.plan.featured {
  border-color: rgba(217, 164, 65, 0.5);
  background: linear-gradient(180deg, rgba(217, 164, 65, 0.09), rgba(255, 255, 255, 0.015));
  box-shadow: 0 0 40px rgba(217, 164, 65, 0.1);
}
.plan-flag {
  position: absolute;
  top: -12px; left: 28px;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  background: linear-gradient(100deg, var(--gold), var(--gold-2));
  color: #1a1206;
}
.plan h3 { font-size: 1.28rem; }
.plan .plan-desc { font-size: 0.88rem; color: var(--text-3); margin-bottom: 18px; min-height: 44px; }
.plan .price {
  font-family: var(--font-num);
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 4px;
  display: flex; align-items: baseline; gap: 6px;
}
.plan .price small { font-size: 0.72rem; font-weight: 500; color: var(--text-3); font-family: var(--font-cn); }
.plan .price-note { font-size: 0.78rem; color: var(--warn); margin-bottom: 20px; }
.plan ul { display: grid; gap: 11px; margin-bottom: 26px; flex: 1; }
.plan li {
  position: relative;
  padding-left: 24px;
  font-size: 0.9rem;
  color: var(--text-2);
}
.plan li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 12px; height: 7px;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}
.plan.featured li::before { border-color: var(--gold-2); }

/* 对比表 */
.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
}
.table-scroll { overflow-x: auto; }
table.cmp { width: 100%; border-collapse: collapse; min-width: 720px; }
table.cmp th, table.cmp td {
  padding: 16px 20px;
  text-align: left;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--line);
}
table.cmp thead th {
  background: rgba(15, 42, 74, 0.6);
  color: var(--white);
  font-weight: 600;
  font-size: 0.88rem;
  white-space: nowrap;
}
table.cmp thead th.hot { color: var(--gold-2); }
table.cmp tbody th { color: var(--white); font-weight: 600; width: 190px; }
table.cmp tbody td { color: var(--text-2); }
table.cmp tbody tr:hover td, table.cmp tbody tr:hover th { background: rgba(34, 211, 238, 0.045); }
table.cmp .yes { color: var(--success); }
table.cmp .no { color: var(--text-3); }

/* ---------- 11. 案例视频墙 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card {
  position: relative;
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-2);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 211, 238, 0.45);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5);
}
.case-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0a1a30;
}
/* 视频帧封面（AI 素材位，可替换为真实成片封面） */
.frame {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 20% 10%, rgba(34, 211, 238, 0.35), transparent 55%),
    radial-gradient(100% 90% at 85% 90%, rgba(217, 164, 65, 0.28), transparent 58%),
    linear-gradient(150deg, #123055, #0b1026 60%, #131a38);
}
.frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03) 0 1px, transparent 1px 26px);
  opacity: 0.6;
}
.frame.f-food {
  background:
    radial-gradient(90% 80% at 25% 20%, rgba(251, 146, 60, 0.42), transparent 58%),
    radial-gradient(80% 80% at 80% 85%, rgba(217, 164, 65, 0.3), transparent 60%),
    linear-gradient(150deg, #2a1630, #0b1026 65%);
}
.frame.f-travel {
  background:
    radial-gradient(90% 80% at 30% 15%, rgba(56, 189, 248, 0.42), transparent 58%),
    radial-gradient(80% 70% at 75% 90%, rgba(52, 211, 153, 0.24), transparent 60%),
    linear-gradient(150deg, #0d2c4a, #0b1026 62%);
}
.frame.f-agri {
  background:
    radial-gradient(90% 80% at 20% 25%, rgba(52, 211, 153, 0.4), transparent 58%),
    radial-gradient(80% 70% at 85% 80%, rgba(217, 164, 65, 0.26), transparent 60%),
    linear-gradient(150deg, #10321f, #0b1026 65%);
}
.frame.f-edu {
  background:
    radial-gradient(90% 80% at 25% 20%, rgba(129, 140, 248, 0.42), transparent 58%),
    radial-gradient(80% 70% at 80% 85%, rgba(34, 211, 238, 0.28), transparent 60%),
    linear-gradient(150deg, #1c1f4a, #0b1026 62%);
}
.frame.f-global {
  background:
    radial-gradient(90% 80% at 25% 20%, rgba(217, 164, 65, 0.38), transparent 58%),
    radial-gradient(80% 70% at 80% 85%, rgba(248, 113, 113, 0.24), transparent 60%),
    linear-gradient(150deg, #331a2c, #0b1026 62%);
}
.frame.f-industry {
  background:
    radial-gradient(90% 80% at 25% 20%, rgba(148, 163, 184, 0.34), transparent 58%),
    radial-gradient(80% 70% at 80% 85%, rgba(56, 189, 248, 0.26), transparent 60%),
    linear-gradient(150deg, #16233d, #0b1026 62%);
}
.frame.f-retail {
  background:
    radial-gradient(90% 80% at 25% 20%, rgba(244, 114, 182, 0.34), transparent 58%),
    radial-gradient(80% 70% at 80% 85%, rgba(34, 211, 238, 0.26), transparent 60%),
    linear-gradient(150deg, #2c1338, #0b1026 62%);
}

.case-thumb .play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 3;
  background: linear-gradient(180deg, rgba(7, 11, 28, 0) 40%, rgba(7, 11, 28, 0.7));
}
.case-thumb .play span {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(7, 11, 28, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease);
}
.case-thumb .play span::before {
  content: "";
  width: 0; height: 0;
  margin-left: 4px;
  border-left: 13px solid var(--white);
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}
.case-card:hover .play span { transform: scale(1.12); background: rgba(34, 211, 238, 0.28); }
.case-thumb .dur {
  position: absolute;
  top: 12px; right: 12px;
  z-index: 4;
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-family: var(--font-num);
  background: rgba(7, 11, 28, 0.72);
  color: var(--text-2);
  border: 1px solid var(--line-2);
}
.case-thumb .scan {
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  z-index: 4;
  transition: opacity 0.3s var(--ease);
}
.case-card:hover .scan { opacity: 1; animation: scanmove 2s linear infinite; }
@keyframes scanmove { 0% { top: 0; } 100% { top: 100%; } }

.case-body { padding: 20px 22px 24px; }
.case-body h4 { margin-bottom: 8px; font-size: 1.05rem; }
.case-meta { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 14px; }
.case-kpi {
  display: flex;
  gap: 18px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
}
.case-kpi div { font-size: 0.78rem; color: var(--text-3); }
.case-kpi b {
  display: block;
  font-family: var(--font-num);
  font-size: 1.12rem;
  color: var(--cyan);
  font-weight: 700;
}

/* 筛选器 */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 12px; }
.fgroup { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.fgroup > span {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-right: 2px;
  min-width: 52px;
}
.chip {
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.22s var(--ease);
}
.chip:hover { border-color: rgba(34, 211, 238, 0.4); color: var(--white); }
.chip.on {
  background: rgba(34, 211, 238, 0.16);
  border-color: var(--cyan);
  color: var(--cyan);
}
.filter-bar {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 32px;
  display: grid;
  gap: 14px;
}
.filter-result { font-size: 0.85rem; color: var(--text-3); }
.filter-result b { color: var(--cyan); font-family: var(--font-num); }
.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--text-3);
  border: 1px dashed var(--line-2);
  border-radius: var(--radius);
}

/* ---------- 12. 行业矩阵 / 合作伙伴 ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ind-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: all 0.3s var(--ease);
  cursor: pointer;
}
.ind-card:hover {
  border-color: rgba(34, 211, 238, 0.4);
  background: rgba(34, 211, 238, 0.06);
  transform: translateY(-3px);
}
.ind-card .ico {
  width: 42px; height: 42px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.28);
  color: var(--cyan);
}
.ind-card .ico svg { width: 21px; height: 21px; }
.ind-card b { display: block; color: var(--white); font-size: 0.98rem; }
.ind-card small { font-size: 0.76rem; color: var(--text-3); }

.marquee {
  position: relative;
  overflow: hidden;
  padding: 18px 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 56px;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-item {
  font-size: 1.05rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.34);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.marquee-item:hover { color: var(--cyan); }

/* ---------- 13. 时间线 ---------- */
.timeline { position: relative; padding-left: 34px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(217, 164, 65, 0.7), transparent);
}
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -34px; top: 8px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--bg-1);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.5);
}
.tl-item .year {
  font-family: var(--font-num);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--gold-2);
  margin-bottom: 4px;
}
.tl-item h4 { margin-bottom: 6px; }
.tl-item p { font-size: 0.9rem; }

/* ---------- 14. 手风琴 ---------- */
.acc { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.acc-item + .acc-item { border-top: 1px solid var(--line); }
.acc-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--white);
  font-weight: 600;
  font-size: 1rem;
  transition: background 0.25s var(--ease);
}
.acc-head:hover { background: rgba(34, 211, 238, 0.05); }
.acc-head .sign {
  flex-shrink: 0;
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border-radius: 8px;
  border: 1px solid var(--line-2);
  color: var(--cyan);
  font-size: 1.1rem;
  line-height: 1;
  transition: transform 0.3s var(--ease);
}
.acc-item.open .acc-head .sign { transform: rotate(45deg); }
.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.acc-body-inner { padding: 0 24px 22px; font-size: 0.92rem; }

/* ---------- 15. 报价计算器 ---------- */
.calc {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 26px;
  align-items: start;
}
.calc-panel {
  padding: 30px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015));
}
.calc-panel.result {
  position: sticky;
  top: calc(var(--nav-h) + 20px);
  border-color: rgba(217, 164, 65, 0.4);
  background: linear-gradient(180deg, rgba(217, 164, 65, 0.08), rgba(255, 255, 255, 0.015));
}
.opt-group { margin-bottom: 24px; }
.opt-group:last-child { margin-bottom: 0; }
.opt-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-3);
  margin-bottom: 10px;
}
.opt-label b { color: var(--white); font-weight: 600; }
.opts { display: flex; flex-wrap: wrap; gap: 9px; }
.opt {
  padding: 9px 16px;
  border-radius: 11px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.22s var(--ease);
}
.opt:hover { border-color: rgba(34, 211, 238, 0.45); color: var(--white); }
.opt.on {
  border-color: var(--cyan);
  background: rgba(34, 211, 238, 0.15);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(34, 211, 238, 0.14);
}

.calc-total {
  text-align: center;
  padding: 14px 0 18px;
  border-bottom: 1px dashed var(--line-2);
  margin-bottom: 18px;
}
.calc-total .t-label { font-size: 0.82rem; color: var(--text-3); }
.calc-total .t-value {
  font-family: var(--font-num);
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: 800;
  color: var(--gold-2);
  line-height: 1.15;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}
.calc-total .t-value small { font-size: 0.34em; color: var(--text-2); }
.calc-total .t-range { font-size: 0.8rem; color: var(--text-3); }
.calc-breakdown { display: grid; gap: 10px; margin-bottom: 22px; }
.calc-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.87rem;
  color: var(--text-2);
}
.calc-row b { font-family: var(--font-num); color: var(--white); font-weight: 600; }
.calc-note {
  font-size: 0.76rem;
  color: var(--text-3);
  padding: 11px 13px;
  border-radius: 10px;
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.22);
  margin-bottom: 18px;
}

/* ---------- 16. 表单 ---------- */
.form-steps { display: flex; gap: 8px; margin-bottom: 28px; }
.fstep { flex: 1; }
.fstep .bar {
  height: 3px;
  border-radius: 3px;
  background: var(--line);
  margin-bottom: 8px;
  overflow: hidden;
}
.fstep .bar i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  transition: width 0.45s var(--ease);
}
.fstep.done .bar i, .fstep.active .bar i { width: 100%; }
.fstep .txt { font-size: 0.78rem; color: var(--text-3); }
.fstep.active .txt { color: var(--cyan); }

.form-panel { display: none; }
.form-panel.active { display: block; animation: fadeUp 0.4s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-2);
  margin-bottom: 8px;
}
.field label .req { color: var(--error); }
.input, textarea.input, select.input {
  width: 100%;
  padding: 12px 15px;
  border-radius: 11px;
  border: 1px solid var(--line-2);
  background: rgba(7, 11, 28, 0.5);
  color: var(--white);
  font-size: 0.92rem;
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
  outline: none;
}
.input::placeholder { color: var(--text-3); }
.input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.13);
}
textarea.input { min-height: 108px; resize: vertical; }
select.input { appearance: none; cursor: pointer; background-image: none; }
.select-wrap { position: relative; }
.select-wrap::after {
  content: "";
  position: absolute;
  right: 16px; top: 50%;
  width: 8px; height: 8px;
  margin-top: -6px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg);
  pointer-events: none;
}
.field-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.err {
  display: none;
  font-size: 0.78rem;
  color: var(--error);
  margin-top: 6px;
}
.field.invalid .input { border-color: var(--error); }
.field.invalid .phone-intl { border-color: var(--error); }
.field.invalid .err { display: block; }
.form-nav { display: flex; gap: 12px; margin-top: 26px; }

/* —— 国际手机号：国家码 + 国旗 + 可搜索（与号码同一行） —— */
.phone-intl {
  position: relative;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: stretch;
  width: 100%;
  box-sizing: border-box;
  border: 1px solid var(--line-2);
  border-radius: 11px;
  background: rgba(7, 11, 28, 0.5);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.phone-intl:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.13);
}
.phone-intl .phone-national {
  border: 0 !important;
  box-shadow: none !important;
  background: transparent !important;
  border-radius: 0 11px 11px 0 !important;
  /* 覆盖全局 .input{width:100%}，否则会把左侧国家码挤没 */
  width: 0 !important;
  flex: 1 1 auto;
  min-width: 0;
  padding: 12px 14px 12px 10px !important;
}
.phone-cc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex: 0 0 auto;
  align-self: stretch;
  min-width: 92px;
  margin: 0;
  padding: 0 12px 0 14px;
  border: 0;
  border-right: 1px solid var(--line-2);
  border-radius: 11px 0 0 11px;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1.2;
  white-space: nowrap;
}
.phone-cc-btn:hover { background: rgba(34, 211, 238, 0.06); }
.phone-cc-flag { font-size: 1.2rem; line-height: 1; display: inline-block; }
.phone-cc-dial { font-variant-numeric: tabular-nums; color: var(--text-1); }
.phone-cc-caret {
  display: inline-block;
  width: 7px; height: 7px;
  margin-left: 2px;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translateY(-2px);
  flex-shrink: 0;
}
.phone-intl.open .phone-cc-caret { transform: rotate(225deg) translateY(-1px); }
.phone-cc-panel {
  position: absolute;
  left: 0; right: 0; top: calc(100% + 6px);
  z-index: 40;
  border: 1px solid var(--line-2);
  border-radius: 12px;
  background: #0b1228;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 280px;
}
.phone-cc-panel[hidden] { display: none !important; }
.phone-cc-search {
  border: 0 !important;
  border-bottom: 1px solid var(--line-2) !important;
  border-radius: 0 !important;
  background: rgba(7, 11, 28, 0.85) !important;
  box-shadow: none !important;
}
.phone-cc-list {
  overflow: auto;
  flex: 1;
  padding: 6px;
}
.phone-cc-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--white);
  cursor: pointer;
  text-align: left;
  font-size: 0.86rem;
}
.phone-cc-item:hover,
.phone-cc-item.on { background: rgba(34, 211, 238, 0.12); }
.phone-cc-meta { flex: 1; min-width: 0; }
.phone-cc-name { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.phone-cc-name small { color: var(--text-3); margin-left: 4px; font-size: 0.78rem; }
.phone-cc-code { color: var(--text-2); font-variant-numeric: tabular-nums; flex-shrink: 0; }
.phone-cc-empty { padding: 16px; text-align: center; color: var(--text-3); font-size: 0.82rem; }

.form-success {
  text-align: center;
  padding: 60px 30px;
  border: 1px solid rgba(52, 211, 153, 0.35);
  border-radius: var(--radius);
  background: rgba(52, 211, 153, 0.06);
}
.form-success .tick {
  width: 68px; height: 68px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(52, 211, 153, 0.14);
  border: 1px solid rgba(52, 211, 153, 0.45);
  color: var(--success);
  font-size: 1.9rem;
}
.form-success h3 { margin-bottom: 10px; }

/* ---------- 17. 平台架构图 ---------- */
.arch {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: rgba(255, 255, 255, 0.02);
}
.arch-layer { margin-bottom: 18px; }
.arch-layer:last-child { margin-bottom: 0; }
.arch-layer > .lbl {
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--text-3);
  font-family: var(--font-num);
  margin-bottom: 10px;
}
.arch-nodes { display: grid; gap: 12px; }
.arch-node {
  padding: 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: linear-gradient(120deg, rgba(34, 211, 238, 0.09), rgba(255, 255, 255, 0.02));
  font-size: 0.9rem;
  color: var(--white);
  text-align: center;
}
.arch-node.gold { background: linear-gradient(120deg, rgba(217, 164, 65, 0.12), rgba(255, 255, 255, 0.02)); }
.arch-arrow { text-align: center; color: var(--cyan); font-size: 0.85rem; margin: 8px 0; opacity: 0.7; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 18. 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 11, 28, 0.6), #05070f);
  padding: 66px 0 28px;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}
.footer-col h5 {
  color: var(--white);
  font-size: 0.92rem;
  margin: 0 0 16px;
  font-weight: 600;
}
.footer-col a {
  display: block;
  font-size: 0.88rem;
  color: var(--text-3);
  padding: 5px 0;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}
.footer-col a:hover { color: var(--cyan); transform: translateX(3px); }
.footer-about p { font-size: 0.88rem; margin-top: 16px; }
.footer-contact { display: grid; gap: 9px; margin-top: 16px; font-size: 0.88rem; }
.footer-contact span { color: var(--text-3); }
.footer-contact b { color: var(--white); font-weight: 600; }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-3);
}
.footer-bottom a:hover { color: var(--cyan); }
.social { display: flex; gap: 10px; }
.social a {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  color: var(--text-2);
  transition: all 0.25s var(--ease);
}
.social a:hover { border-color: var(--cyan); color: var(--cyan); background: rgba(34, 211, 238, 0.1); }
.social svg { width: 17px; height: 17px; }

/* ---------- 19. 悬浮客服 ---------- */
.fab-wrap {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 90;
  display: grid;
  gap: 12px;
  justify-items: end;
}
.fab {
  width: 50px; height: 50px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-2);
  background: rgba(11, 16, 38, 0.9);
  backdrop-filter: blur(10px);
  color: var(--text-2);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.28s var(--ease);
  position: relative;
}
.fab:hover { color: var(--cyan); border-color: var(--cyan); transform: translateY(-3px); }
.fab.main {
  background: linear-gradient(140deg, var(--gold), var(--gold-2));
  color: #1a1206;
  border-color: transparent;
}
.fab.main:hover { color: #1a1206; box-shadow: var(--glow-gold); }
.fab svg { width: 21px; height: 21px; }
.fab .tip {
  position: absolute;
  right: 60px;
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(7, 11, 28, 0.95);
  border: 1px solid var(--line-2);
  font-size: 0.8rem;
  color: var(--white);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s var(--ease);
}
.fab:hover .tip { opacity: 1; transform: translateY(-50%); }

/* 微信二维码弹层 */
.qr-pop {
  position: fixed;
  right: 22px;
  bottom: 150px;
  z-index: 91;
  width: 210px;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line-2);
  background: rgba(11, 16, 38, 0.97);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  text-align: center;
  opacity: 0;
  transform: translateY(12px) scale(0.96);
  pointer-events: none;
  transition: all 0.3s var(--ease);
}
.qr-pop.show { opacity: 1; transform: none; pointer-events: auto; }
.qr-box {
  width: 150px; height: 150px;
  margin: 0 auto 12px;
  border-radius: 12px;
  background: #fff;
  padding: 8px;
  display: grid;
  place-items: center;
}
.qr-box svg { width: 100%; height: 100%; }
.qr-pop p { font-size: 0.8rem; color: var(--text-3); margin: 0; }

/* 减弱动效开关 */
.motion-toggle {
  position: fixed;
  left: 18px;
  bottom: 22px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: rgba(11, 16, 38, 0.85);
  backdrop-filter: blur(10px);
  font-size: 0.76rem;
  color: var(--text-3);
  cursor: pointer;
  transition: all 0.25s var(--ease);
}
.motion-toggle:hover { color: var(--white); border-color: var(--line-2); }
.motion-toggle .sw {
  width: 30px; height: 17px;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.25);
  position: relative;
  transition: background 0.25s var(--ease);
}
.motion-toggle .sw::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--cyan);
  transition: transform 0.25s var(--ease);
}
.motion-toggle.off .sw { background: rgba(255, 255, 255, 0.14); }
.motion-toggle.off .sw::after { transform: translateX(13px); background: var(--text-3); }

/* ---------- 20. 页头 Banner（内页） ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 76px) 0 76px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(700px 380px at 15% 0%, rgba(34, 211, 238, 0.17), transparent 62%),
    radial-gradient(600px 340px at 88% 30%, rgba(217, 164, 65, 0.12), transparent 62%);
  pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-3);
  margin-bottom: 18px;
}
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb span { opacity: 0.5; }
.page-hero h1 { max-width: 860px; margin-bottom: 18px; }
.page-hero .lead { font-size: 1.06rem; max-width: 700px; }
.page-hero .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* 平台 logo 行 */
.plat-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.plat-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--surface);
  font-size: 0.87rem;
  color: var(--text-2);
}
.plat-pill .d { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); }
.plat-pill.g .d { background: var(--gold); }
.plat-pill.r .d { background: #f87171; }
.plat-pill.p .d { background: #a78bfa; }

/* ---------- 21. 文章列表 ---------- */
.post-list { display: grid; gap: 18px; }
.post {
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 22px;
  align-items: center;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: all 0.3s var(--ease);
}
.post:hover { border-color: rgba(34, 211, 238, 0.4); background: rgba(34, 211, 238, 0.05); transform: translateY(-3px); }
.post-thumb {
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}
.post h4 { margin-bottom: 8px; font-size: 1.06rem; }
.post .meta { font-size: 0.78rem; color: var(--text-3); font-family: var(--font-num); }
.post p { font-size: 0.88rem; margin: 8px 0 0; }

/* ---------- 22. 团队 / OPC ---------- */
.member { text-align: center; padding: 26px 20px; }
.member .avatar {
  width: 92px; height: 92px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  background: linear-gradient(140deg, rgba(34, 211, 238, 0.35), rgba(15, 42, 74, 0.9));
  border: 1px solid rgba(34, 211, 238, 0.4);
}
.member h4 { margin-bottom: 4px; }
.member .role { font-size: 0.82rem; color: var(--cyan); margin-bottom: 10px; }
.member p { font-size: 0.85rem; }

/* ---------- 23. CTA 横幅 ---------- */
.cta-band {
  position: relative;
  padding: 60px 46px;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(34, 211, 238, 0.28);
  background: linear-gradient(120deg, rgba(15, 42, 74, 0.85), rgba(11, 16, 38, 0.9));
  text-align: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  width: 520px; height: 520px;
  left: 50%; top: -260px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.2), transparent 65%);
  pointer-events: none;
}
.cta-band > * { position: relative; }
.cta-band h2 { margin-bottom: 14px; }
.cta-band p { max-width: 620px; margin: 0 auto 28px; }
.cta-band .btns { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* 案例详情弹层 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal.show { display: flex; }
.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(4, 7, 18, 0.78);
  backdrop-filter: blur(6px);
}
.modal-body {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 880px;
  max-height: 86vh;
  overflow-y: auto;
  border-radius: 22px;
  border: 1px solid var(--line-2);
  background: linear-gradient(180deg, #0e1531, #080c1e);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  animation: modalIn 0.35s var(--ease);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to { opacity: 1; transform: none; }
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  z-index: 3;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: rgba(7, 11, 28, 0.8);
  color: var(--white);
  font-size: 1.1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.modal-close:hover { border-color: var(--error); color: var(--error); }
.modal-hero {
  position: relative;
  height: 220px;
  overflow: hidden;
  border-radius: 22px 22px 0 0;
}
.modal-hero .frame { position: absolute; inset: 0; }
.modal-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 11, 28, 0.1), #0e1531);
}
.modal-inner { padding: 28px 32px 36px; }
.modal-inner h3 { margin-bottom: 8px; }
.modal-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.modal-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 26px;
}
.modal-kpi {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(34, 211, 238, 0.06);
  text-align: center;
}
.modal-kpi b {
  display: block;
  font-family: var(--font-num);
  font-size: 1.5rem;
  color: var(--gold-2);
  font-weight: 800;
}
.modal-kpi span { font-size: 0.78rem; color: var(--text-3); }
.modal-block { margin-bottom: 20px; }
.modal-block h4 { color: var(--cyan); font-size: 0.95rem; margin-bottom: 8px; }
.modal-block p, .modal-block li { font-size: 0.9rem; }
.modal-quote {
  padding: 18px 22px;
  border-radius: 14px;
  border-left: 3px solid var(--gold);
  background: rgba(217, 164, 65, 0.07);
  font-size: 0.92rem;
  color: var(--text-2);
}
@media (max-width: 640px) {
  .modal-inner { padding: 22px 20px 28px; }
  .modal-kpis { grid-template-columns: 1fr; }
  .modal-hero { height: 160px; }
}

/* ---------- 24. 动效：滚动入场 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

/* ---------- 25. 响应式 ---------- */
@media (max-width: 1024px) {
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .calc { grid-template-columns: 1fr; }
  .calc-panel.result { position: static; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .plans { grid-template-columns: 1fr; }
  .plan.featured { order: -1; }
}
@media (max-width: 860px) {
  .nav-menu, .nav-actions .lang-switch, .nav-actions .btn { display: none; }
  .nav-toggle { display: grid; margin-left: auto; }
  .section { padding: 68px 0; }
  .section--tight { padding: 48px 0; }
  .g-2, .g-3 { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; gap: 34px; }
  .flow-step::after { display: none; }
  .field-row { grid-template-columns: 1fr; }
  .post { grid-template-columns: 1fr; }
  .post-thumb { aspect-ratio: 16 / 9; }
  .cols-3, .cols-4 { grid-template-columns: 1fr 1fr; }
  .hero { min-height: auto; padding: calc(var(--nav-h) + 40px) 0 60px; }
  .hero-scroll { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-band { padding: 42px 24px; }
  .arch { padding: 20px; }
  .motion-toggle { display: none; }
}
@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .g-4, .industry-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .fab-wrap { right: 14px; bottom: 18px; }
  .qr-pop { right: 14px; bottom: 140px; }
  h1 { font-size: 2rem; }
  .form-steps { gap: 5px; }
  .fstep .txt { font-size: 0.68rem; }
}

/* ---------- 26. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}
body.no-motion #particles,
body.no-motion .datastream,
body.no-motion .hero-glow { display: none; }
body.no-motion * {
  animation-duration: 0.001ms !important;
  animation-iteration-count: 1 !important;
  transition-duration: 0.001ms !important;
}
body.no-motion .reveal { opacity: 1; transform: none; }

/* 打印 */
@media print {
  .nav, .fab-wrap, .motion-toggle, .drawer { display: none !important; }
  body { background: #fff; color: #000; }
}