/* ==========================================================================
   ENPK (enpk.cn) - 看电影学英语官方门户样式表
   设计风格：Cinema Dark 影院级沉浸暗黑 + 翡翠青/电光蓝流光
   ========================================================================== */

:root {
  --bg-primary: #070a12;
  --bg-secondary: #0c1220;
  --bg-card: rgba(17, 25, 40, 0.78);
  --bg-glass: rgba(15, 23, 42, 0.72);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #10b981;
  --accent-secondary: #3b82f6;
  --accent-amber: #f59e0b;
  --accent-gradient: linear-gradient(135deg, #10b981 0%, #3b82f6 55%, #8b5cf6 100%);
  --border-color: rgba(255, 255, 255, 0.09);
  --border-hover: rgba(16, 185, 129, 0.45);
  --container-max: 1240px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(circle at 18% 10%, rgba(16, 185, 129, 0.11) 0%, transparent 40%),
    radial-gradient(circle at 82% 18%, rgba(59, 130, 246, 0.11) 0%, transparent 42%);
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ==================== 顶部导航栏 ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(7, 10, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-logo-badge {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.35);
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 10px rgba(249, 115, 22, 0.35));
}

.brand-sub {
  font-size: 0.72rem;
  font-weight: 500;
  color: #10b981;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.28);
  padding: 1px 7px;
  border-radius: 999px;
  margin-left: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-item a {
  font-size: 0.94rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-item a:hover,
.nav-item a.active {
  color: #fff;
}

.nav-item a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.22s ease;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(16, 185, 129, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
}

/* ==================== 首屏 HERO 区域 ==================== */
.hero-section {
  padding: 56px 0 48px;
  text-align: center;
  position: relative;
}

.hero-title {
  font-size: clamp(2.2rem, 4.6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.025em;
  max-width: 920px;
  margin: 0 auto 20px;
}

.gradient-text {
  display: block;
  background: linear-gradient(90deg, #34d399 0%, #38bdf8 50%, #a78bfa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 760px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 44px;
  flex-wrap: wrap;
}

/* ==================== 交互式电影学英语模拟工作台 ==================== */
.workspace-mockup {
  max-width: 1080px;
  margin: 0 auto;
  background: #0b101d;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.75), 0 0 40px rgba(16, 185, 129, 0.08);
  overflow: hidden;
  text-align: left;
  scroll-margin-top: 86px;
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: #111827;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.window-dots {
  display: flex;
  gap: 7px;
}

.window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dots .red { background: #ef4444; }
.window-dots .yellow { background: #f59e0b; }
.window-dots .green { background: #10b981; }

.mockup-tabs {
  display: flex;
  gap: 6px;
  background: rgba(0, 0, 0, 0.35);
  padding: 4px;
  border-radius: 8px;
}

.mockup-tab {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.mockup-tab:hover {
  color: #fff;
}

.mockup-tab.active {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.mockup-body {
  display: grid;
  grid-template-columns: 270px 1fr;
  min-height: 430px;
}

.agent-sidebar {
  background: #0d1323;
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.agent-status-card {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 10px;
  padding: 12px;
}

.status-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: #34d399;
  margin-bottom: 6px;
}

.status-pulse {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 1.5s infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.85); }
}

.task-step {
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 8px 0 8px 22px;
  position: relative;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.task-step.done {
  color: #cbd5e1;
}

.task-step.done::before {
  content: '✓';
  position: absolute;
  left: 2px;
  color: #10b981;
  font-weight: 700;
}

.task-step.current {
  color: #38bdf8;
  font-weight: 600;
}

.task-step.current::before {
  content: '▶';
  position: absolute;
  left: 2px;
  color: #38bdf8;
  font-size: 0.68rem;
}

.studio-canvas {
  padding: 18px;
  background: #080c17;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ==================== TAB 1: 电影双语精讲播放器 & 点词即查 ==================== */
.cinema-player-box {
  background: #0d1424;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.cinema-screen {
  position: relative;
  height: 225px;
  background: #050811;
  overflow: hidden;
}

.cinema-screen-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.82) contrast(1.08);
  transition: transform 6s ease;
  animation: slowZoom 12s ease-in-out infinite alternate;
}

@keyframes slowZoom {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}

.cinema-top-overlay {
  position: absolute;
  top: 12px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 5;
}

.movie-badge {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.74rem;
  color: #e2e8f0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.live-loop-tag {
  background: rgba(16, 185, 129, 0.9);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
}

/* 电影画面上的悬浮查词卡片（动态切换） */
.word-popover-card {
  position: absolute;
  right: 16px;
  bottom: 14px;
  width: 295px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(16, 185, 129, 0.55);
  border-radius: 10px;
  padding: 12px 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.75);
  z-index: 10;
  transition: all 0.3s ease;
}

.word-head-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 4px;
}

.word-spell {
  font-size: 1.05rem;
  font-weight: 800;
  color: #34d399;
}

.word-phonetic {
  font-size: 0.76rem;
  color: #94a3b8;
  font-family: var(--font-mono);
}

.word-tags-row {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.word-exam-tag {
  font-size: 0.65rem;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.word-def-text {
  font-size: 0.78rem;
  color: #e2e8f0;
  margin-bottom: 6px;
}

.word-note-text {
  font-size: 0.72rem;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.05);
  padding: 5px 8px;
  border-radius: 5px;
  border-left: 2px solid #f59e0b;
}

/* 底部双语台词与进度区 */
.subtitle-deck {
  padding: 14px 18px;
  background: #111827;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.subtitle-en-line {
  font-size: 0.98rem;
  font-weight: 600;
  color: #f8fafc;
  margin-bottom: 4px;
  line-height: 1.5;
}

.interactive-word {
  padding: 1px 5px;
  border-radius: 4px;
  cursor: pointer;
  border-bottom: 1.5px dashed rgba(52, 211, 153, 0.6);
  transition: all 0.2s;
}

.interactive-word:hover,
.interactive-word.active-word {
  background: rgba(16, 185, 129, 0.25);
  color: #34d399;
  border-bottom-style: solid;
}

.subtitle-zh-line {
  font-size: 0.82rem;
  color: #94a3b8;
  margin-bottom: 12px;
}

.player-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  color: #94a3b8;
}

.progress-track {
  flex: 1;
  height: 5px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 64%;
  background: linear-gradient(90deg, #10b981, #38bdf8);
  border-radius: 99px;
  animation: progressMove 6s linear infinite;
}

@keyframes progressMove {
  0% { width: 18%; }
  100% { width: 88%; }
}

.control-pills {
  display: flex;
  gap: 6px;
}

.ctrl-pill {
  background: rgba(255, 255, 255, 0.07);
  padding: 2px 8px;
  border-radius: 4px;
  color: #e2e8f0;
  font-size: 0.7rem;
}

.ctrl-pill.active {
  background: rgba(16, 185, 129, 0.22);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

/* ==================== TAB 2: AI 角色扮演 & 音素级发音评测 ==================== */
.shadowing-studio {
  background: #0d1424;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.shadowing-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.score-badge-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.4);
  padding: 6px 14px;
  border-radius: 10px;
}

.score-big {
  font-size: 1.5rem;
  font-weight: 800;
  color: #34d399;
}

.phoneme-sentence-card {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 14px;
}

.phoneme-words-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.pw-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 6px 10px;
  text-align: center;
}

.pw-item.good { border-color: rgba(16, 185, 129, 0.5); }
.pw-item.warn { border-color: rgba(245, 158, 11, 0.6); }

.pw-word { font-size: 0.9rem; font-weight: 700; color: #fff; }
.pw-ipa { font-size: 0.7rem; color: #94a3b8; font-family: var(--font-mono); }
.pw-score { font-size: 0.68rem; font-weight: 700; margin-top: 2px; }
.pw-item.good .pw-score { color: #34d399; }
.pw-item.warn .pw-score { color: #fbbf24; }

.waveform-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.wave-card {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 8px;
  padding: 10px 12px;
}

.wave-bars {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 42px;
  margin-top: 8px;
}

.wave-bar {
  flex: 1;
  background: #10b981;
  border-radius: 3px;
  animation: waveBounce 0.9s ease-in-out infinite alternate;
}

.wave-bar:nth-child(odd) { animation-duration: 0.65s; background: #38bdf8; }
.wave-bar:nth-child(3n) { animation-duration: 1.1s; }

@keyframes waveBounce {
  from { height: 22%; opacity: 0.55; }
  to { height: 95%; opacity: 1; }
}

/* ==================== TAB 3: 盲听训练 & 单句循环听写 ==================== */
.dictation-studio {
  background: #0d1424;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ab-loop-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.78rem;
}

.dictation-slots-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  background: #111827;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.dict-word-box {
  padding: 6px 12px;
  border-radius: 6px;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.45);
  color: #34d399;
  font-weight: 700;
  font-size: 0.88rem;
}

.dict-word-typing {
  padding: 6px 14px;
  border-radius: 6px;
  background: rgba(59, 130, 246, 0.2);
  border: 1.5px solid #38bdf8;
  color: #fff;
  font-weight: 700;
  font-size: 0.88rem;
}

.masked-sub-preview {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.blurred-text {
  filter: blur(4px);
  transition: filter 0.3s;
  cursor: pointer;
}

.blurred-text:hover {
  filter: blur(0);
}

/* ==================== TAB 4: 电影语境生词本 ==================== */
.vocab-grid-studio {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.vocab-context-card {
  background: #111827;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  gap: 12px;
  align-items: center;
}

.vocab-thumb {
  width: 84px;
  height: 64px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.vocab-info {
  flex: 1;
  min-width: 0;
}

.vocab-title-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3px;
}

.vocab-w {
  font-size: 0.92rem;
  font-weight: 800;
  color: #34d399;
}

.vocab-movie-src {
  font-size: 0.66rem;
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.15);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ==================== 效能指标横栏 ==================== */
.stats-banner {
  padding: 34px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: rgba(12, 18, 32, 0.6);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-item .num {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item .desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ==================== 通用区块标题 ==================== */
.features-section,
.solutions-section,
.about-section {
  padding: 80px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #34d399;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 3.2vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 14px;
}

.section-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ==================== 核心功能网格 ==================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}

.feature-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.14);
  color: #34d399;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.18rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==================== 分级电影片单体系 ==================== */
.solutions-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.solution-thumb {
  width: 100%;
  height: 145px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.solution-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-secondary);
}

.solution-list li::before {
  content: '✦ ';
  color: #10b981;
}

/* ==================== 关于我们 ==================== */
.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 44px;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 36px;
  align-items: center;
}

.about-meta-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-meta-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 16px;
}

.about-meta-item .label {
  font-size: 0.76rem;
  color: var(--text-muted);
}

.about-meta-item .val {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-top: 4px;
}

/* ==================== 页脚（工信部备案合规） ==================== */
.site-footer {
  background: #05070d;
  border-top: 1px solid var(--border-color);
  padding: 56px 0 32px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.footer-brand p {
  margin-top: 12px;
  font-size: 0.84rem;
  line-height: 1.65;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.94rem;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.footer-col a:hover {
  color: #34d399;
}

.footer-compliance-divider {
  height: 1px;
  background: var(--border-color);
  margin-bottom: 24px;
}

.footer-bottom {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.beian-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.beian-link:hover {
  color: #34d399;
}

.beian-link svg {
  width: 15px;
  height: 15px;
}

/* ==================== 模态框 ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal-dialog {
  background: #0f172a;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  width: 100%;
  max-width: 460px;
  padding: 26px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  color: #cbd5e1;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  padding: 10px 12px;
  color: #fff;
  font-size: 0.88rem;
}

/* ==================== 价格方案二级页 (pricing.html 一屏完整紧凑展示) ==================== */
.pricing-page {
  min-height: calc(100vh - 72px);
  background-color: #f7f9fa;
  color: #1f2937;
  padding: 16px 24px 36px;
}

.pricing-page__container {
  max-width: 1240px;
  margin: 0 auto;
}

.pricing-page__tabs-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  position: relative;
}

.pricing-page__tabs-center {
  margin: 0 auto;
  display: flex;
  align-items: center;
  background: #eaedf0;
  padding: 4px;
  border-radius: 9999px;
  gap: 4px;
}

.pricing-page__tab-btn {
  border: none;
  background: transparent;
  padding: 6px 22px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 500;
  color: #4b5563;
  cursor: pointer;
}

.pricing-page__tab-btn--active {
  background: #ffffff;
  color: #111827;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.pricing-page__card-gift {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #4b5563;
  cursor: pointer;
  background: transparent;
  border: none;
}

.pricing-page__header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.pricing-page__slogan {
  font-size: 15px;
  color: #4b5563;
  font-weight: 400;
}

.pricing-page__period-switch {
  display: flex;
  align-items: center;
  background: #eaedf0;
  padding: 4px;
  border-radius: 9999px;
  gap: 2px;
}

.pricing-page__period-btn {
  border: none;
  background: transparent;
  padding: 5px 16px;
  border-radius: 9999px;
  font-size: 13px;
  color: #4b5563;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.pricing-page__period-btn--active {
  background: #ffffff;
  color: #111827;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.pricing-page__discount-tag {
  color: #059669;
  font-weight: 600;
  font-size: 12px;
}

.pricing-page__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 20px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
}

.pricing-card--highlighted {
  border: 2px solid #34d399;
  box-shadow: 0 4px 20px rgba(52, 211, 153, 0.12);
}

.pricing-card__bg-curves {
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  pointer-events: none;
  opacity: 0.2;
}

.pricing-card__header { margin-bottom: 14px; }
.pricing-card__title-row { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.pricing-card__title { font-size: 19px; font-weight: 700; color: #111827; }
.pricing-card__badge { background: #d1fae5; color: #065f46; font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 9999px; }
.pricing-card__price-wrap { display: flex; align-items: baseline; gap: 4px; }
.pricing-card__currency { font-size: 17px; font-weight: 600; color: #111827; }
.pricing-card__amount { font-size: 34px; font-weight: 700; color: #111827; line-height: 1; }
.pricing-card__unit { font-size: 14px; color: #6b7280; }
.pricing-card__btn-wrap { margin-bottom: 14px; }

.pricing-card__btn {
  width: 100%;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
}

.pricing-card__btn--outline { background: #ffffff; border-color: #e5e7eb; color: #374151; }
.pricing-card__btn--subtle { background: #e5e7eb; color: #374151; }
.pricing-card__btn--primary { background: #1e3a34; color: #ffffff; }

.pricing-card__save-tip {
  font-size: 12px;
  color: #6b7280;
  margin-top: 6px;
  text-align: center;
  cursor: pointer;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  font-size: 13px;
  color: #4b5563;
  line-height: 1.45;
  border-top: 1px solid #f3f4f6;
  padding-top: 14px;
}

.pricing-feature-row { display: flex; align-items: flex-start; gap: 8px; }
.pricing-feature-icon { color: #059669; flex-shrink: 0; }
.pricing-sublist { display: flex; flex-direction: column; gap: 6px; padding-left: 12px; }

/* 响应式 */
@media (max-width: 960px) {
  .mockup-body { grid-template-columns: 1fr; }
  .features-grid, .solutions-grid { grid-template-columns: 1fr; }
  .pricing-page__grid { grid-template-columns: repeat(2, 1fr); }
  .about-card, .footer-top { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .mobile-menu-btn { display: block; }
}