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

:root {
  --bg-1: #050816;
  --bg-2: #091128;
  --text: #ffffff;
  --soft: rgba(255,255,255,0.72);
  --line: rgba(255,255,255,0.13);
  --glass: rgba(255,255,255,0.08);
  --orange: #ff9b1c;
  --orange2: #ff4e1a;
  --blue: #19a7ff;
  --purple: #915eff;
  --red: #ff4368;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: #fff;
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 94, 0, 0.22), transparent 28%),
    radial-gradient(circle at 88% 18%, rgba(0, 145, 255, 0.18), transparent 30%),
    radial-gradient(circle at 50% 90%, rgba(120, 72, 255, 0.15), transparent 30%),
    linear-gradient(135deg, #050816 0%, #07112d 52%, #03050d 100%);
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.95), rgba(0,0,0,0.25));
}

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

ul {
  list-style: none;
}

button {
  font-family: inherit;
  border: 0;
  cursor: pointer;
}

.bg-wrap,
.bg-grid,
.glow {
  pointer-events: none;
}

.bg-wrap {
  position: fixed;
  inset: 0;
  z-index: -1;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(85px);
  opacity: 0.55;
}

.glow-1 {
  width: 420px;
  height: 420px;
  top: -100px;
  left: -100px;
  background: rgba(255, 102, 0, 0.3);
}

.glow-2 {
  width: 420px;
  height: 420px;
  top: 160px;
  right: -120px;
  background: rgba(0, 160, 255, 0.22);
}

.glow-3 {
  width: 380px;
  height: 380px;
  bottom: -140px;
  left: 35%;
  background: rgba(145, 94, 255, 0.18);
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

/* 顶部 */
.hero {
  padding: 76px 0 50px;
  text-align: center;
}

.hero-top-tags {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 16px;
  margin-bottom: 28px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 55px rgba(0,0,0,0.32);
}

.hero-top-tags span {
  font-size: 14px;
  color: rgba(255,255,255,0.9);
  white-space: nowrap;
}

.hero h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -2px;
  color: #fff;
  text-shadow:
    0 0 18px rgba(255, 120, 0, 0.25),
    0 12px 30px rgba(0,0,0,0.45);
}

.hero-subtitle {
  margin-top: 18px;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 900;
  color: #ffd58d;
  text-shadow: 0 0 20px rgba(255, 153, 0, 0.28);
}

.hero-desc {
  max-width: 900px;
  margin: 20px auto 0;
  font-size: 18px;
  line-height: 1.9;
  color: var(--soft);
}

/* 按钮 */
.hero-actions {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 56px;
  padding: 0 30px;
  border-radius: 999px;
  font-size: 17px;
  font-weight: 900;
  white-space: nowrap;
  overflow: hidden;
  transition: 0.25s ease;
}

.btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -130%;
  width: 70%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.38), transparent);
  transform: skewX(-22deg);
}

.btn:hover::before {
  left: 140%;
  transition: 0.7s ease;
}

.btn-primary {
  color: #1d1300;
  background: linear-gradient(135deg, #ffd36a 0%, #ff9b1c 45%, #ff4e1a 100%);
  box-shadow: 0 16px 40px rgba(255, 100, 0, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 52px rgba(255, 100, 0, 0.48);
}

.btn-ghost {
  color: #fff;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  backdrop-filter: blur(12px);
}

.btn-ghost:hover {
  transform: translateY(-3px);
  background: rgba(255,255,255,0.13);
}

/* 顶部数据 */
.hero-metrics {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.metric-card {
  padding: 24px 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.055));
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 55px rgba(0,0,0,0.32);
}

.metric-card strong {
  display: block;
  font-size: 24px;
  margin-bottom: 8px;
}

.metric-card span {
  font-size: 14px;
  color: var(--soft);
}

/* 通用模块 */
.section {
  padding: 42px 0;
}

.section-head {
  max-width: 840px;
  margin: 0 auto 34px;
  text-align: center;
}

.section-tag {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffbe57;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.2;
  font-weight: 900;
}

.section-head p {
  margin-top: 12px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--soft);
}

/* 四个核心卡片 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  min-height: 370px;
  padding: 28px 22px;
  border-radius: 30px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 22px 62px rgba(0,0,0,0.34);
  overflow: hidden;
  transition: 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-7px);
  border-color: rgba(255, 185, 77, 0.42);
}

.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at top right, rgba(255,255,255,0.14), transparent 38%);
}

.hot-orange {
  background:
    radial-gradient(circle at top right, rgba(255, 133, 25, 0.2), transparent 35%),
    rgba(255,255,255,0.08);
}

.hot-blue {
  background:
    radial-gradient(circle at top right, rgba(25, 167, 255, 0.18), transparent 35%),
    rgba(255,255,255,0.08);
}

.hot-purple {
  background:
    radial-gradient(circle at top right, rgba(145, 94, 255, 0.2), transparent 35%),
    rgba(255,255,255,0.08);
}

.hot-red {
  background:
    radial-gradient(circle at top right, rgba(255, 67, 104, 0.22), transparent 35%),
    rgba(255,255,255,0.08);
}

.featured {
  border-color: rgba(255, 135, 0, 0.42);
  box-shadow:
    0 22px 62px rgba(0,0,0,0.34),
    0 0 42px rgba(255, 86, 0, 0.12);
}

.limited-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
  padding: 7px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff4444, #ff8c00);
  color: #fff;
  font-size: 12px;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(255, 90, 0, 0.28);
}

.feature-icon {
  position: relative;
  z-index: 2;
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
  border-radius: 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(255,255,255,0.11);
  font-size: 28px;
}

.feature-card h3 {
  position: relative;
  z-index: 2;
  font-size: 23px;
  line-height: 1.35;
  font-weight: 900;
  margin-bottom: 18px;
}

.feature-card ul {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 12px;
}

.feature-card li {
  font-size: 15px;
  line-height: 1.45;
  padding: 11px 12px;
  border-radius: 14px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.92);
}

/* 三个摘要 */
.summary-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 8px;
}

.summary-item {
  padding: 24px;
  border-radius: 24px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 50px rgba(0,0,0,0.3);
}

.summary-item span {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  color: #ffbf55;
  font-weight: 900;
  letter-spacing: 1px;
}

.summary-item b {
  display: block;
  font-size: 18px;
  line-height: 1.6;
  color: #fff;
}

/* 三个优势 */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.adv-box {
  min-height: 230px;
  padding: 30px 26px;
  border-radius: 28px;
  background: rgba(255,255,255,0.075);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 58px rgba(0,0,0,0.32);
}

.adv-box span {
  display: inline-flex;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  justify-content: center;
  align-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(255,154,28,0.24), rgba(255,78,26,0.38));
  color: #ffd590;
  font-weight: 900;
}

.adv-box h3 {
  font-size: 23px;
  line-height: 1.35;
  font-weight: 900;
  margin-bottom: 12px;
}

.adv-box p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--soft);
}

/* 流程 */
.process-section {
  padding-top: 28px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.process-card {
  padding: 28px 24px;
  border-radius: 26px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 58px rgba(0,0,0,0.32);
}

.process-card em {
  display: inline-block;
  margin-bottom: 15px;
  font-style: normal;
  font-size: 28px;
  color: #ffb146;
  font-weight: 900;
}

.process-card h3 {
  font-size: 22px;
  font-weight: 900;
  margin-bottom: 10px;
}

.process-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--soft);
}

/* 联系区 */
.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
  gap: 36px;
  padding: 36px 42px;
  border-radius: 32px;
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 145, 0, 0.16), transparent 32%),
    radial-gradient(circle at 90% 50%, rgba(0, 153, 255, 0.16), transparent 35%),
    rgba(255,255,255,0.075);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 64px rgba(0,0,0,0.35);
}

.contact-left h2 {
  font-size: 34px;
  line-height: 1.25;
  font-weight: 900;
  margin-bottom: 12px;
}

.contact-left p {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,0.78);
}

.contact-right {
  text-align: right;
}

.contact-right .big-btn {
  width: 100%;
  max-width: 360px;
  min-height: 58px;
}

.contact-tips {
  margin-top: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.68);
}

/* 底部 CTA */
.cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  align-items: center;
  gap: 40px;
  padding: 52px;
  border-radius: 36px;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 20%, rgba(255, 145, 0, 0.18), transparent 30%),
    radial-gradient(circle at 88% 12%, rgba(25, 167, 255, 0.14), transparent 28%),
    rgba(255,255,255,0.08);
  border: 1px solid var(--line);
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 88px rgba(0,0,0,0.4);
}

.cta-left {
  min-width: 0;
}

.cta-mini {
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 2px;
  color: #ffbe57;
}

.cta-left h2 {
  font-size: clamp(42px, 5vw, 68px);
  line-height: 1.1;
  font-weight: 900;
}

.cta-left h3 {
  margin-top: 10px;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1.25;
  font-weight: 900;
  color: #ffd58d;
}

.cta-desc {
  max-width: 720px;
  margin-top: 18px;
  font-size: 18px;
  line-height: 1.9;
  color: var(--soft);
}

.cta-right {
  width: 100%;
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.cta-right .big-btn {
  width: 100%;
  max-width: 380px;
  min-height: 60px;
  padding: 0 20px;
}

.cta-right p {
  max-width: 380px;
  text-align: center;
  margin-top: 12px;
  color: var(--soft);
  font-size: 15px;
}

/* 提示 */
.toast {
  position: fixed;
  left: 50%;
  bottom: 106px;
  z-index: 9999;
  transform: translateX(-50%) translateY(10px);
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(11, 18, 37, 0.9);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  color: #fff;
  font-size: 14px;
  opacity: 0;
  visibility: hidden;
  transition: 0.25s ease;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.footer {
  padding: 16px 0 44px;
  text-align: center;
  color: rgba(255,255,255,0.48);
  font-size: 14px;
}

/* 平板 */
@media (max-width: 1080px) {
  .hero-metrics,
  .feature-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .summary-panel,
  .adv-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-right,
  .cta-right {
    text-align: left;
    align-items: flex-start;
  }

  .contact-right .big-btn,
  .cta-right .big-btn {
    max-width: 420px;
  }

  .cta-right p {
    text-align: left;
  }
}

/* 手机 */
@media (max-width: 768px) {
  .container {
    width: min(100% - 26px, 1180px);
  }

  .hero {
    padding: 58px 0 36px;
  }

  .hero h1 {
    letter-spacing: -1px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    max-width: 360px;
    white-space: normal;
    line-height: 1.35;
    padding: 12px 20px;
  }

  .hero-metrics,
  .feature-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 32px 0;
  }

  .feature-card {
    min-height: auto;
  }

  .contact-panel {
    padding: 28px 22px;
    border-radius: 26px;
  }

  .contact-left h2 {
    font-size: 28px;
  }

  .contact-left p {
    font-size: 15px;
  }

  .cta-panel {
    padding: 34px 24px;
    border-radius: 28px;
  }

  .cta-left h2 {
    font-size: 40px;
  }

  .cta-left h3 {
    font-size: 28px;
  }

  .cta-desc {
    font-size: 16px;
  }

  .contact-right .big-btn,
  .cta-right .big-btn {
    width: 100%;
    max-width: 100%;
  }
}