/* ============ 媒花易数官网 — 全局样式（蓝白浅色主题） ============ */
:root {
  --primary: #1266f1;
  --primary-dark: #0b4cc4;
  --brand-2: #00a6e0;
  --bg: #ffffff;
  --bg-soft: #f4f8ff;
  --card: #ffffff;
  --card-border: #e4ebf7;
  --text: #0e1b30;
  --text-2: #5b6b87;
  --text-3: #8b98ad;
  --grad: linear-gradient(135deg, #1266f1, #00a6e0);
  --shadow: 0 2px 16px rgba(18, 60, 140, .06);
  --shadow-lg: 0 20px 50px rgba(18, 60, 140, .13);
  --radius: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

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

ul {
  list-style: none;
}

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

::selection {
  background: rgba(18, 102, 241, .18);
  color: var(--text);
}

/* ============ 背景光效 ============ */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .16;
  animation: orbFloat 14s ease-in-out infinite alternate;
}

.orb-1 {
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, #1266f1, transparent 70%);
  top: -160px;
  left: -120px;
}

.orb-2 {
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, #00a6e0, transparent 70%);
  top: 30%;
  right: -180px;
  animation-delay: -5s;
  opacity: .12;
}

.orb-3 {
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, #7fb2ff, transparent 70%);
  bottom: -140px;
  left: 30%;
  animation-delay: -9s;
  opacity: .12;
}

@keyframes orbFloat {
  from {
    transform: translate(0, 0) scale(1);
  }

  to {
    transform: translate(60px, 40px) scale(1.12);
  }
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(18, 102, 241, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 102, 241, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 20%, #000 30%, transparent 75%);
}

/* ============ 导航栏 ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 24px rgba(18, 60, 140, .07);
  border-bottom: 1px solid #e9eefb;
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  border-radius: 12px;
  padding: 6px 14px;
}

.brand-logo img {
  height: 50px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 6px;
  flex: 1;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 15px;
  color: var(--text-2);
  transition: color .25s, background .25s;
}

.nav-links a:hover {
  color: var(--primary);
  background: #eef4ff;
}

.nav-links a.active {
  color: var(--primary);
  background: #e8f1ff;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: .3s;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform .25s, box-shadow .25s, background .25s;
  white-space: nowrap;
}

.btn:active {
  transform: scale(.97);
}

.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 22px rgba(18, 102, 241, .28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(18, 102, 241, .36);
}

.btn-ghost {
  background: #fff;
  color: var(--text);
  border: 1px solid #dbe4f5;
}

.btn-ghost:hover {
  background: var(--bg-soft);
  border-color: #b9cdf0;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 10px 28px rgba(9, 40, 100, .22);
}

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

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 100vh;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  align-items: center;
  gap: 48px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 50px 32px 80px;
}

#particleCanvas {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  letter-spacing: 1px;
  background: #eef4ff;
  border: 1px solid #d5e4ff;
  color: #31579e;
  margin-bottom: 28px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #00a6e0;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 166, 224, .5);
  }

  50% {
    box-shadow: 0 0 0 8px rgba(0, 166, 224, 0);
  }
}

.hero-title {
  font-size: clamp(38px, 5vw, 62px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.grad-text {
  background: linear-gradient(100deg, #1266f1, #00a6e0 60%, #1266f1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  background-size: 200% auto;
  animation: shine 7s linear infinite;
}

@keyframes shine {
  to {
    background-position: 200% center;
  }
}

.hero-sub {
  font-size: 17px;
  color: var(--text-2);
  margin-bottom: 36px;
}

.hero-search {
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: 560px;
  background: #fff;
  border: 1px solid #dbe4f5;
  border-radius: 16px;
  padding: 8px 8px 8px 18px;
  box-shadow: 0 6px 20px rgba(18, 60, 140, .06);
  transition: border-color .3s, box-shadow .3s;
}

.hero-search:focus-within {
  border-color: rgba(18, 102, 241, .55);
  box-shadow: 0 0 0 4px rgba(18, 102, 241, .12);
}

.ai-icon {
  width: 22px;
  height: 22px;
}

.hero-search input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 15px;
  min-width: 0;
}

.hero-search input::placeholder {
  color: var(--text-3);
}

.hero-tags {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--text-3);
  flex-wrap: wrap;
}

.hero-tags a {
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 13px;
  background: #fff;
  border: 1px solid #dbe4f5;
  color: var(--text-2);
  transition: .25s;
}

.hero-tags a:hover {
  color: var(--primary);
  border-color: rgba(18, 102, 241, .45);
  background: #eef4ff;
}

/* Hero 视觉区 */
.hero-visual {
  position: relative;
  perspective: 1200px;
}

.screen-mock {
  position: relative;
  border-radius: 18px;
  overflow: visible;
  transform-style: preserve-3d;
  transition: transform .2s ease-out;
}

.mock-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  background: #f6f9ff;
  border: 1px solid #e4ebf7;
  border-bottom: none;
  border-radius: 16px 16px 0 0;
  padding: 11px 16px;
}

.mock-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mock-bar i:nth-child(1) {
  background: #ff5f57;
}

.mock-bar i:nth-child(2) {
  background: #febc2e;
}

.mock-bar i:nth-child(3) {
  background: #28c840;
}

.mock-bar span {
  margin-left: 10px;
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: .5px;
}

.mock-img {
  border-radius: 0 0 16px 16px;
  border: 1px solid #e4ebf7;
  border-top: none;
  box-shadow: 0 26px 60px rgba(18, 60, 140, .14);
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.mock-float {
  position: absolute;
  padding: 14px 20px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid #e4ebf7;
  box-shadow: 0 16px 38px rgba(18, 60, 140, .15);
  animation: floatY 5s ease-in-out infinite alternate;
}

.mock-float b {
  display: block;
  font-size: 20px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mock-float span {
  font-size: 12px;
  color: var(--text-2);
}

.float-a {
  top: 24px;
  right: -26px;
}

.float-b {
  bottom: 40px;
  left: -30px;
  animation-delay: -2.5s;
}

@keyframes floatY {
  from {
    transform: translateY(-8px);
  }

  to {
    transform: translateY(10px);
  }
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 38px;
  border: 2px solid #cfdcf2;
  border-radius: 14px;
}

.scroll-hint span {
  position: absolute;
  top: 7px;
  left: 50%;
  margin-left: -2px;
  width: 4px;
  height: 8px;
  border-radius: 4px;
  background: var(--primary);
  animation: scrollDot 1.8s infinite;
}

@keyframes scrollDot {
  0% {
    opacity: 1;
    top: 7px;
  }

  100% {
    opacity: 0;
    top: 22px;
  }
}

/* ============ 数据统计带 ============ */
.stats {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: -20px auto 0;
  padding: 40px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
}

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item+.stat-item::before {
  content: "";
  position: absolute;
  left: -12px;
  top: 15%;
  height: 70%;
  width: 1px;
  background: linear-gradient(transparent, #e4ebf7, transparent);
}

.stat-num {
  font-size: 42px;
  font-weight: 800;
  background: linear-gradient(120deg, #1266f1, #00a6e0);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-label {
  color: var(--text-2);
  font-size: 14px;
  margin-top: 4px;
}

/* ============ 通用 Section ============ */
.section {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 110px 32px 40px;
}

.section-dark {
  max-width: none;
  background: linear-gradient(180deg, transparent, var(--bg-soft) 16%, var(--bg-soft) 84%, transparent);
}

.section-dark>* {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 3px;
  font-weight: 700;
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid #cfe0ff;
  background: #eef4ff;
  margin-bottom: 18px;
}

.section-head h2,
.insight-text h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: 1px;
}

.section-head p {
  color: var(--text-2);
  margin-top: 12px;
  font-size: 16px;
}

/* ============ 平台能力卡片 ============ */
.ability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.ability-card {
  position: relative;
  padding: 34px 26px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
  transform-style: preserve-3d;
}

.ability-card:hover {
  border-color: #bcd4ff;
  box-shadow: var(--shadow-lg);
}

.card-glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(18, 102, 241, .1), transparent 70%);
  top: -80px;
  right: -60px;
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}

.ability-card:hover .card-glow {
  opacity: 1;
}

.ability-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
}

.ability-icon svg {
  width: 28px;
  height: 28px;
}

.icon-a {
  background: #eaf2ff;
  color: #1266f1;
}

.icon-b {
  background: #e4f6fd;
  color: #0091c9;
}

.icon-c {
  background: #edf0fe;
  color: #5a7cf0;
}

.icon-d {
  background: #f1f5fb;
  color: #63758f;
}

.ability-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.ability-card p {
  font-size: 14px;
  color: var(--text-2);
  min-height: 88px;
}

.card-link {
  font-size: 13px;
  color: var(--primary);
  margin-top: 14px;
  font-weight: 600;
}

/* ============ 媒体品类 ============ */
.media-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.media-card {
  position: relative;
  padding: 30px 24px 26px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}

.media-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 9%, transparent), transparent 40%);
  opacity: 0;
  transition: opacity .35s;
  pointer-events: none;
}

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

.media-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  box-shadow: 0 18px 40px color-mix(in srgb, var(--accent) 18%, transparent);
}

.media-icon {
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  color: #a9b6c9;
  transition: color .3s;
}

.media-icon svg {
  width: 100%;
  height: 100%;
}

.media-card:hover .media-icon {
  color: var(--accent);
}

.media-card h3 {
  font-size: 19px;
  margin-bottom: 6px;
}

.media-card p {
  font-size: 13px;
  color: var(--text-2);
}

.media-line {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--accent);
  transition: width .45s ease;
  border-radius: 0 3px 3px 0;
}

.media-card:hover .media-line {
  width: 100%;
}

.media-all {
  background: linear-gradient(135deg, #eaf2ff, #e4f6fd);
  border-color: #d5e4ff;
}

.media-all .media-icon {
  color: #7fa8ff;
}

/* 跑马灯 */
.marquee {
  margin-top: 56px;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: #fff;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee-track {
  display: flex;
  gap: 14px;
  padding: 16px 0;
  width: max-content;
  animation: marquee 26s linear infinite;
}

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

.marquee-track span {
  padding: 7px 22px;
  border-radius: 100px;
  font-size: 14px;
  white-space: nowrap;
  background: var(--bg-soft);
  border: 1px solid #dce7f8;
  color: var(--text-2);
}

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

/* ============ 媒析洞察 ============ */
.insight-wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.insight-desc {
  color: var(--text-2);
  margin: 18px 0 26px;
  font-size: 16px;
}

.insight-list {
  margin-bottom: 34px;
  display: grid;
  gap: 12px;
}

.insight-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: #324158;
}

.insight-list i {
  color: var(--primary);
  font-style: normal;
  font-size: 11px;
}

.insight-visual {
  position: relative;
  perspective: 1200px;
}

.chart-card {
  position: relative;
  z-index: 2;
  padding: 26px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-lg);
  transform-style: preserve-3d;
  transition: transform .2s ease-out;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
}

.chart-title {
  font-size: 15px;
  font-weight: 700;
}

.chart-badge {
  font-size: 11px;
  padding: 3px 12px;
  border-radius: 100px;
  background: #e8f1ff;
  color: var(--primary);
  border: 1px solid #cfe0ff;
  animation: pulse 2s infinite;
}

.bar-chart {
  display: flex;
  align-items: flex-end;
  gap: 4.5%;
  height: 190px;
  padding: 0 4px;
}

.bar {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  height: 100%;
  justify-content: flex-end;
}

.bar i {
  width: 100%;
  height: 0;
  border-radius: 8px 8px 3px 3px;
  background: linear-gradient(180deg, #6aa9ff, #1266f1);
  transition: height 1.1s cubic-bezier(.22, 1, .36, 1);
}

.bar-chart.animated .bar i {
  height: var(--h);
}

.bar span {
  font-size: 12px;
  color: var(--text-2);
}

.chart-foot {
  display: flex;
  justify-content: space-around;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid #eef2fa;
}

.mini-stat {
  text-align: center;
}

.mini-stat b {
  display: block;
  font-size: 20px;
  color: var(--primary);
}

.mini-stat span {
  font-size: 12px;
  color: var(--text-2);
}

.insight-photo {
  position: absolute;
  right: -34px;
  bottom: -44px;
  width: 220px;
  z-index: 3;
  border-radius: 14px;
  border: 4px solid #fff;
  box-shadow: 0 18px 44px rgba(18, 60, 140, .2);
  animation: floatY 6s ease-in-out infinite alternate;
}

/* ============ 投放流程 ============ */
.flow-line {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
  position: relative;
}

.flow-line::before {
  content: "";
  position: absolute;
  top: 38px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #c9dcfb, #bfe6f5, transparent);
}

.flow-step {
  position: relative;
  text-align: center;
  padding: 0 8px;
  transition: transform .3s;
}

.flow-step:hover {
  transform: translateY(-6px);
}

.flow-num {
  width: 76px;
  height: 76px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 22px;
  font-weight: 800;
  background: #fff;
  border: 1px solid #cfe0ff;
  color: var(--primary);
  position: relative;
  z-index: 1;
  box-shadow: 0 6px 18px rgba(18, 102, 241, .1);
  transition: .35s;
}

.flow-step:hover .flow-num {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(18, 102, 241, .3);
}

.flow-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 13px;
  color: var(--text-2);
}

/* ============ 会员体系 ============ */
.vip-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.vip-card {
  position: relative;
  padding: 40px 32px;
  border-radius: 24px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: transform .3s, box-shadow .3s, border-color .3s;
}

.vip-card:hover {
  transform: translateY(-8px);
  border-color: #bcd4ff;
  box-shadow: var(--shadow-lg);
}

.vip-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.vip-price {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 12px;
}

.vip-price small {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
}

.vip-save {
  display: inline-block;
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 100px;
  color: var(--primary);
  background: #eef4ff;
  border: 1px solid #d5e4ff;
  margin-bottom: 14px;
}

.vip-note {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 24px;
}

.vip-foot {
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
  margin-top: 34px;
}

.vip-card ul {
  flex: 1;
  display: grid;
  gap: 12px;
  margin-bottom: 30px;
}

.vip-card li {
  font-size: 14px;
  color: #324158;
  padding-left: 24px;
  position: relative;
}

.vip-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.vip-hot {
  background: linear-gradient(160deg, #eef4ff, #e9f7ff);
  border-color: #bcd4ff;
  box-shadow: 0 20px 50px rgba(18, 102, 241, .14);
  transform: scale(1.04);
}

.vip-hot:hover {
  transform: scale(1.04) translateY(-8px);
}

.vip-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 5px 20px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  background: var(--grad);
  box-shadow: 0 8px 20px rgba(18, 102, 241, .3);
  white-space: nowrap;
}

/* ============ 页脚 ============ */
.footer {
  position: relative;
  z-index: 1;
  margin-top: 90px;
  border-top: 1px solid #e9eefb;
  background: var(--bg-soft);
}

.cta-card {
  max-width: 960px;
  margin: -70px auto 0;
  text-align: center;
  padding: 64px 40px;
  border-radius: 28px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1266f1, #00a6e0);
  box-shadow: 0 26px 60px rgba(18, 102, 241, .28);
}

.cta-card::before {
  content: "";
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .18), transparent 70%);
  top: -200px;
  right: -100px;
}

.cta-card h2 {
  font-size: clamp(26px, 3vw, 36px);
  margin-bottom: 14px;
  position: relative;
  color: #fff;
}

.cta-card p {
  color: rgba(255, 255, 255, .85);
  margin-bottom: 32px;
  position: relative;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 32px 50px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand p {
  color: var(--text-2);
  font-size: 14px;
  margin-top: 18px;
}

.footer-col h4 {
  font-size: 15px;
  margin-bottom: 18px;
  color: var(--text);
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 12px;
  transition: color .25s, transform .25s;
}

.footer-col a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid #e4ebf7;
  padding: 22px 32px;
  text-align: center;
  font-size: 13px;
  color: var(--text-3);
}

/* ============ 滚动显现动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.22, 1, .36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ 响应式 ============ */
@media (max-width: 1080px) {

  .ability-grid,
  .media-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .flow-line {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 40px;
  }

  .flow-line::before {
    display: none;
  }

  .insight-wrap {
    grid-template-columns: 1fr;
  }

  .insight-photo {
    display: none;
  }

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

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 120px;
    text-align: center;
  }

  .hero-search {
    margin: 0 auto;
  }

  .hero-tags {
    justify-content: center;
  }

  .hero-visual {
    max-width: 560px;
    margin: 20px auto 0;
  }

  .float-a {
    right: 6px;
  }

  .float-b {
    left: 6px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    margin: 0 20px;
  }

  .stat-item+.stat-item::before {
    display: none;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .navbar.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, .98);
    backdrop-filter: blur(24px);
    padding: 18px 24px;
    gap: 4px;
    border-bottom: 1px solid #e9eefb;
  }

  .vip-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
  }

  .vip-hot {
    transform: none;
  }

  .vip-hot:hover {
    transform: translateY(-8px);
  }
}

@media (max-width: 560px) {

  .ability-grid,
  .media-grid,
  .flow-line,
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 80px 20px 30px;
  }

  .cta-card {
    margin: -50px 16px 0;
    padding: 48px 24px;
  }
}