/* ===== 基础设置 ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
  --bg: #FAF7F2;
  --bg-card: #FFFFFF;
  --text: #1A1A1A;
  --text-secondary: #6B6B6B;
  --text-light: #9B9B9B;
  --accent: #DA7756;
  --accent-light: #F4D4C4;
  --accent-bg: #FEF3EC;
  --blue: #4A90D9;
  --blue-light: #E8F0FE;
  --green: #2D9D78;
  --green-light: #E6F5F0;
  --purple: #8B5CF6;
  --purple-light: #F0EBFE;
  --border: #E8E4DF;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== 容器 ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 导航 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 247, 242, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

/* ===== Hero ===== */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-text h1 span {
  color: var(--accent);
}

.hero-text .subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  text-decoration: none;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(218, 119, 86, 0.3);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.hero-image img {
  width: 100%;
  max-width: 420px;
  border-radius: var(--radius);
}

/* ===== 区块标题 ===== */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ===== 卡片 ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

/* ===== Bento 网格 - 六大目标 ===== */
.goals-section {
  padding: 80px 0;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.bento-grid .card.featured {
  grid-column: span 2;
}

.goal-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}

.goal-icon.orange {
  background: var(--accent-bg);
  color: var(--accent);
}

.goal-icon.blue {
  background: var(--blue-light);
  color: var(--blue);
}

.goal-icon.green {
  background: var(--green-light);
  color: var(--green);
}

.goal-icon.purple {
  background: var(--purple-light);
  color: var(--purple);
}

.goal-number {
  font-size: 0.75rem;
  color: var(--text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 6px;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

.goal-img {
  width: 100%;
  border-radius: 12px;
  margin-top: 14px;
}

/* ===== 7天计划 - Tab 切换 ===== */
.timeline-section {
  padding: 80px 0 100px;
}

.tab-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
  box-shadow: 0 2px 12px rgba(218, 119, 86, 0.25);
}

.tab-btn .status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}

.tab-btn .status-dot.done {
  background: var(--green);
}

.tab-btn .status-dot.current {
  background: var(--accent);
}

.tab-btn .status-dot.upcoming {
  background: var(--text-light);
}

.tab-btn.active .status-dot {
  background: white;
}

/* Tab 内容面板 */
.tab-panels {
  position: relative;
}

.tab-panel {
  display: none;
  animation: fadeSlideIn 0.35s ease-out;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.day-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 360px;
}

.day-card-content {
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.day-card-image {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 24px;
}

.day-card-image img {
  width: 100%;
  max-width: 360px;
  border-radius: 12px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 14px;
  width: fit-content;
}

.status-badge.done {
  background: var(--green-light);
  color: var(--green);
}

.status-badge.current {
  background: var(--accent-bg);
  color: var(--accent);
}

.status-badge.upcoming {
  background: #F3F3F3;
  color: var(--text-light);
}

.day-label {
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 6px;
}

.day-card-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.day-card-content ul {
  list-style: none;
  padding: 0;
}

.day-card-content li {
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding: 5px 0;
  padding-left: 20px;
  position: relative;
  line-height: 1.65;
}

.day-card-content li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.day-note {
  margin-top: 14px;
  padding: 10px 14px;
  background: var(--accent-bg);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--accent);
  font-style: italic;
}

/* ===== Footer ===== */
.footer {
  padding: 48px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-light);
  font-size: 0.88rem;
}

.footer .highlight {
  color: var(--accent);
  font-weight: 600;
}

/* ===== 滚动淡入 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bento-grid .card.featured {
    grid-column: span 2;
  }
}

@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-image {
    order: -1;
  }

  .hero-image img {
    max-width: 250px;
  }

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

  .bento-grid .card.featured {
    grid-column: span 1;
  }

  .nav-links {
    display: none;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

  .day-card {
    grid-template-columns: 1fr;
  }

  .day-card-image {
    order: -1;
    padding: 20px;
  }

  .day-card-content {
    padding: 24px;
  }

  .tab-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}

@media (max-width: 375px) {
  html {
    font-size: 14px;
  }
}

/* ===== 无障碍 ===== */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

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