/* === index.css - 浅色主题 === */

/* === 全局基础与呼吸感设置 === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

/* === 配色变量 === */
:root {
  --primary-color: #2e4057;
  --accent-color: #d4a853;
  --text-main: #3a3f47;
  --text-muted: #8A94A6;
  --text-light: #a8a5a0;
  --bg-main: #fcfbfa;
  --bg-block: #ffffff;
  --bg-light: #f5f6f8;
  --border-color: #eaecef;
  --accent-06: rgba(212, 168, 83, 0.06);
  --accent-08: rgba(212, 168, 83, 0.08);
  --accent-10: rgba(212, 168, 83, 0.10);
  --accent-12: rgba(212, 168, 83, 0.12);
  --accent-15: rgba(212, 168, 83, 0.15);
  --accent-20: rgba(212, 168, 83, 0.20);
  --accent-25: rgba(212, 168, 83, 0.25);
  --accent-30: rgba(212, 168, 83, 0.30);
  --accent-40: rgba(212, 168, 83, 0.40);
  --dark-01: rgba(0, 0, 0, 0.01);
  --dark-02: rgba(0, 0, 0, 0.02);
  --dark-015: rgba(0, 0, 0, 0.015);
  --dark-03: rgba(0, 0, 0, 0.03);
  --dark-04: rgba(0, 0, 0, 0.04);
  --dark-08: rgba(0, 0, 0, 0.08);
}

body {
  font-family: -apple-system, "PingFang SC", "Noto Sans SC", "Helvetica Neue", sans-serif;
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* 无障碍：减少动画 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* === Typography === */
h1, h2, h3 {
  font-weight: 400;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

h3 {
  font-size: clamp(1rem, 2vw, 1.3rem);
}

p {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: var(--text-muted);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: #e6b96b;
}

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

.section {
  padding: 100px 0;
}

.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-color);
  margin-bottom: 12px;
  font-weight: 500;
}

/* === Header (浅色背景，默认) === */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(252, 251, 250, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.logo {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  letter-spacing: 0.05em;
}

.logo span {
  color: var(--accent-color);
}

nav a {
  font-size: 0.8rem;
  margin-left: 24px;
  color: var(--text-muted);
}

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

/* === Header Dark (暗色背景，用于首屏为暗色的页面) === */
header.header-dark {
  background: rgba(11, 13, 16, 0.92);
  border-bottom: 1px solid rgba(212, 168, 83, 0.08);
}

header.header-dark .logo {
  color: #FFFFFF;
}

header.header-dark .logo span {
  color: var(--accent-color);
}

header.header-dark nav a {
  color: #8A94A6;
}

header.header-dark nav a:hover {
  color: #FFFFFF;
}

/* === Hero === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero .subtitle {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent-color);
  margin-bottom: 20px;
  font-weight: 500;
}

.hero h1 {
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero h1 .highlight {
  display: block;
  color: var(--accent-color);
  font-weight: 500;
}

.hero p {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  max-width: 520px;
  margin-bottom: 32px;
}

/* Hero image */
.hero-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.08;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: multiply;
  filter: brightness(0.9) contrast(1.05);
}

/* === Hero Dark (暗色首屏) === */
.hero-dark {
  background: #0B0D10;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-dark::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 600px 600px at 20% 50%, rgba(212, 168, 83, 0.03) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 80% 30%, rgba(212, 168, 83, 0.02) 0%, transparent 70%);
  pointer-events: none;
}

.hero-dark .container {
  position: relative;
  z-index: 1;
}

.hero-dark .subtitle {
  color: var(--accent-color);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 500;
  margin-bottom: 20px;
}

.hero-dark h1 {
  color: #FFFFFF;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero-dark .highlight {
  color: var(--accent-color);
}

.hero-dark p {
  color: #8A94A6;
}

/* Hero Layout */
.hero-layout {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-layout {
    flex-direction: row;
    align-items: center;
  }
}

.hero-text {
  flex: 1;
}

.hero-brand {
  flex-shrink: 0;
  text-align: center;
}

/* === Mini Checkup (Hero右侧，暗色主题版本) === */
.hero-dark .mini-checkup {
  background: linear-gradient(135deg, #161A22 0%, #0F121A 100%);
  border: 1px solid #222938;
  border-radius: 8px;
  padding: 24px;
  max-width: 460px;
  width: 100%;
  flex-shrink: 0;
}

.hero-dark .mc-title {
  color: var(--accent-color);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.hero-dark .mc-upper {
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.hero-dark .mc-lower {
  color: #8A94A6;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.hero-dark .mc-option {
  padding: 10px 16px;
  border: 1px solid #222938;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s ease;
  color: #CCCCCC;
  background: rgba(255, 255, 255, 0.03);
}

.hero-dark .mc-option:hover {
  border-color: rgba(212, 168, 83, 0.3);
  background: rgba(212, 168, 83, 0.05);
}

.hero-dark .mc-option.selected-green {
  border-color: #7db87d;
  background: rgba(125, 184, 125, 0.1);
  color: #7db87d;
}

.hero-dark .mc-option.selected-yellow {
  border-color: var(--accent-color);
  background: rgba(212, 168, 83, 0.1);
  color: var(--accent-color);
}

.hero-dark .mc-option.selected-red {
  border-color: #c97a7a;
  background: rgba(201, 122, 122, 0.1);
  color: #c97a7a;
}

.hero-dark .mc-result {
  margin-top: 16px;
  padding: 16px;
  background: rgba(212, 168, 83, 0.05);
  border: 1px solid rgba(212, 168, 83, 0.15);
  border-radius: 6px;
  display: none;
}

.hero-dark .mc-result.show {
  display: block;
  animation: fadeIn 0.4s ease;
}

.hero-dark .mc-verdict {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.hero-dark .mc-verdict.green { color: #7db87d; }
.hero-dark .mc-verdict.yellow { color: var(--accent-color); }
.hero-dark .mc-verdict.red { color: #c97a7a; }

.hero-dark .mc-detail {
  font-size: 0.85rem;
  color: #8A94A6;
  line-height: 1.7;
  margin-bottom: 12px;
}

.hero-dark .mc-cta {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 0.85rem;
  text-decoration: none;
  transition: all 0.3s ease;
}

.hero-dark .mc-cta.green {
  background: rgba(125, 184, 125, 0.12);
  color: #7db87d;
  border: 1px solid rgba(125, 184, 125, 0.3);
}

.hero-dark .mc-cta.yellow {
  background: rgba(212, 168, 83, 0.12);
  color: var(--accent-color);
  border: 1px solid rgba(212, 168, 83, 0.3);
}

.hero-dark .mc-cta.red {
  background: rgba(201, 122, 122, 0.12);
  color: #c97a7a;
  border: 1px solid rgba(201, 122, 122, 0.3);
}

/* Hero button (暗色背景版本) */
.hero-dark .hero-btn {
  display: inline-block;
  padding: 12px 28px;
  background: rgba(212, 168, 83, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(212, 168, 83, 0.3);
  border-radius: 6px;
  color: var(--accent-color);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
}

.hero-dark .hero-btn:hover {
  background: rgba(212, 168, 83, 0.18);
  border-color: rgba(212, 168, 83, 0.5);
  transform: translateY(-1px);
}

/* Scroll indicator (暗色背景版本) */
.hero-dark .scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: 12px;
}

.hero-dark .scroll-indicator::before {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--accent-color);
  border-radius: 2px;
  opacity: 0.5;
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.5; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* 微光粒子动画 */
.hero-dark .light-dot {
  position: absolute;
  border-radius: 50%;
  background: var(--accent-color);
  opacity: 0.15;
  pointer-events: none;
  animation: pulseDot 4s ease-in-out infinite;
}

@keyframes pulseDot {
  0%, 100% { opacity: 0.1; transform: scale(1); }
  50% { opacity: 0.2; transform: scale(1.2); }
}

/* 滚动淡入动画 */
.scroll-fade {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* === Mini Checkup (浅色背景版本，原有样式) === */
.mini-checkup {
  background: var(--dark-03);
  border: 1px solid var(--accent-15);
  border-radius: 8px;
  padding: 28px 24px;
  max-width: 460px;
  width: 100%;
  flex-shrink: 0;
}

.mini-checkup .mc-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-color);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-checkup .mc-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 16px;
  background: var(--accent-color);
  border-radius: 2px;
}

.mc-question {
  margin-bottom: 20px;
}

.mc-question .mc-upper {
  font-size: 0.88rem;
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 6px;
  letter-spacing: 0.01em;
}

.mc-question .mc-lower {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-left: 16px;
  border-left: 2px solid var(--accent-15);
}

.mc-question .mc-options {
  display: flex;
  gap: 8px;
}

.mc-option {
  flex: 1;
  padding: 10px 6px;
  text-align: center;
  border: 1px solid var(--accent-15);
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.25s;
  background: transparent;
  line-height: 1.4;
}

.mc-option:hover {
  border-color: var(--accent-30);
  color: var(--text-main);
}

.mc-option.selected-green {
  border-color: #4caf50;
  color: #4caf50;
  background: rgba(76, 175, 80, 0.08);
}

.mc-option.selected-yellow {
  border-color: #ff9800;
  color: #ff9800;
  background: rgba(255, 152, 0, 0.08);
}

.mc-option.selected-red {
  border-color: #f44336;
  color: #f44336;
  background: rgba(244, 67, 54, 0.08);
}

.mc-result {
  margin-top: 20px;
  padding: 20px;
  border-radius: 6px;
  border: 1px solid var(--accent-10);
  background: var(--dark-02);
  display: none;
}

.mc-result.show {
  display: block;
  animation: fadeIn 0.4s ease;
}

.mc-result .mc-verdict {
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 8px;
}

.mc-result .mc-verdict.green {
  color: #4caf50;
}

.mc-result .mc-verdict.yellow {
  color: #ff9800;
}

.mc-result .mc-verdict.red {
  color: #f44336;
}

.mc-result .mc-detail {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.mc-result .mc-cta {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 4px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: all 0.3s;
}

.mc-result .mc-cta.green {
  background: rgba(76, 175, 80, 0.12);
  border: 1px solid rgba(76, 175, 80, 0.3);
  color: #4caf50;
}

.mc-result .mc-cta.green:hover {
  background: #4caf50;
  color: #fff;
}

.mc-result .mc-cta.yellow {
  background: rgba(255, 152, 0, 0.12);
  border: 1px solid rgba(255, 152, 0, 0.3);
  color: #ff9800;
}

.mc-result .mc-cta.yellow:hover {
  background: #ff9800;
  color: #fff;
}

.mc-result .mc-cta.red {
  background: rgba(244, 67, 54, 0.12);
  border: 1px solid rgba(244, 67, 54, 0.3);
  color: #f44336;
}

.mc-result .mc-cta.red:hover {
  background: #f44336;
  color: #fff;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === Mechanism Section === */
.mechanism {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg-main) 0%, var(--bg-light) 50%, var(--bg-main) 100%);
}

.mechanism .section-title {
  text-align: center;
}

.mechanism h2 {
  text-align: center;
  margin-bottom: 8px;
}

.mechanism > .container > p {
  text-align: center;
  margin-bottom: 48px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.mechanism-quote {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 48px;
  padding: 32px 0;
}

.mechanism-quote .mq-text {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  color: var(--text-main);
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.mechanism-quote .mq-text em {
  color: var(--accent-color);
  font-style: normal;
  font-weight: 500;
}

.mechanism-quote .mq-sub {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 12px;
}

.mechanism-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .mechanism-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.mechanism-card {
  border: 1px solid var(--accent-12);
  padding: 32px 24px;
  background: var(--dark-02);
  border-radius: 6px;
  transition: border-color 0.3s, background 0.3s;
  position: relative;
}

.mechanism-card:hover {
  border-color: var(--accent-25);
  background: var(--accent-03);
}

.mechanism-card .mc-num {
  font-size: 0.7rem;
  color: var(--accent-color);
  opacity: 0.6;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  font-weight: 500;
}

.mechanism-card .mc-icon {
  display: block;
  margin-bottom: 16px;
}

.mechanism-card .mc-icon svg {
  width: 48px;
  height: 48px;
}

.mechanism-card h3 {
  margin-bottom: 4px;
  color: var(--text-main);
  font-weight: 500;
  font-size: 1.05rem;
}

.mechanism-card .mc-subtitle {
  font-size: 0.82rem;
  color: var(--accent-color);
  margin-bottom: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.mechanism-card p {
  font-size: 0.85rem;
  line-height: 1.6;
}

.mechanism-card .mc-img {
  display: block;
  margin-top: 20px;
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: center;
  border-radius: 4px;
  opacity: 0.85;
  border: 1px solid var(--accent-08);
}

/* === Section Images === */
.section-img {
  display: block;
  margin: 48px auto 0;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--accent-10);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.08), 0 0 60px var(--accent-04);
}

.section-img.wide {
  max-width: 900px;
}

.section-img.square {
  max-width: 500px;
}

/* === Three-Step Funnel === */
.funnel {
  padding: 80px 0;
  background: var(--dark-01);
}

.funnel .section-title {
  text-align: center;
}

.funnel h2 {
  text-align: center;
  margin-bottom: 8px;
}

.funnel > p {
  text-align: center;
  margin-bottom: 40px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.funnel-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .funnel-steps {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

.funnel-step {
  position: relative;
  padding: 32px 24px;
  border: 1px solid var(--accent-12);
  border-radius: 6px;
  background: var(--dark-015);
  transition: all 0.3s;
  text-decoration: none;
  display: block;
}

.funnel-step:hover {
  border-color: var(--accent-30);
  background: var(--accent-03);
}

.funnel-step .step-num {
  font-size: 2.5rem;
  font-weight: 200;
  color: var(--accent-color);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: 12px;
}

.funnel-step .step-time {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--accent-color);
  padding: 3px 10px;
  border: 1px solid var(--accent-20);
  border-radius: 2px;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.funnel-step h3 {
  color: var(--text-main);
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.funnel-step p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.funnel-step .step-arrow {
  display: block;
  text-align: right;
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--accent-color);
}

@media (min-width: 640px) {
  .funnel-step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent-25);
    font-size: 1.5rem;
  }
}

/* === Dialogue Cards === */
.dialogue-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dialogue-card {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px;
  border: 1px solid var(--accent-12);
  background: var(--dark-015);
  transition: all 0.3s;
  text-decoration: none;
}

.dialogue-card:hover {
  border-color: var(--accent-30);
  background: var(--accent-03);
}

.dialogue-card .card-num {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent-color);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
  width: 40px;
  letter-spacing: -0.03em;
}

.dialogue-card .card-body {
  flex: 1;
}

.dialogue-card .card-body h3 {
  font-size: 1rem;
  color: var(--text-main);
  margin-bottom: 4px;
  font-weight: 500;
  letter-spacing: normal;
}

.dialogue-card .card-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

.card-time {
  display: inline-block;
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 4px;
}

.card-time.new {
  color: var(--accent-color);
}

.expand-btn {
  display: block;
  width: 100%;
  padding: 16px;
  text-align: center;
  border: 1px dashed var(--accent-15);
  border-radius: 4px;
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s;
  background: transparent;
  margin-top: 16px;
}

.expand-btn:hover {
  border-color: var(--accent-30);
  color: var(--accent-color);
  background: var(--accent-02);
}

.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--accent-08);
}

.filter-btn {
  cursor: pointer;
  padding: 6px 14px;
  font-size: 0.78rem;
  border: 1px solid var(--accent-12);
  color: var(--text-muted);
  border-radius: 2px;
  transition: all 0.2s;
  background: transparent;
}

.filter-btn.active {
  border-color: var(--accent-20);
  color: var(--accent-color);
  background: var(--accent-08);
}

.reading-order {
  background: var(--accent-02);
  border: 1px solid var(--accent-10);
  border-radius: 4px;
  padding: 18px 24px;
  margin-bottom: 28px;
}

.reading-order h3 {
  font-size: 0.85rem;
  color: var(--accent-color);
  margin-bottom: 10px;
  font-weight: 500;
}

.reading-order p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 8px;
}

.reading-order ol {
  font-size: 0.8rem;
  color: var(--text-main);
  padding-left: 20px;
  margin: 0;
  line-height: 1.8;
}

.reading-order ol a {
  color: var(--accent-color);
}

.reading-order .ro-level {
  font-size: 0.8rem;
  color: var(--accent-color);
  margin: 8px 0 4px;
  font-weight: 500;
}

/* === Tools Grid === */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

@media (max-width: 860px) {
  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 400px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
}

.tool-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--accent-10);
  background: var(--dark-015);
  border-radius: 6px;
  text-decoration: none;
  transition: all 0.3s;
}

.tool-card:hover {
  border-color: var(--accent-30);
  background: var(--accent-03);
}

.tool-card .tool-icon {
  font-size: 1.4rem;
  display: block;
  margin-bottom: 8px;
}

.tool-card h3 {
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 4px;
  font-weight: 500;
}

.tool-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

.tool-card .tool-link {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 8px;
  display: inline-block;
}

.tool-card:hover .tool-link {
  color: var(--accent-color);
}

.tool-tag {
  font-size: 0.7rem;
  color: var(--accent-color);
  display: block;
  margin-top: 4px;
  letter-spacing: 0.5px;
}

.tool-start {
  position: relative;
}

.tool-start::before {
  content: "★ 起点";
  position: absolute;
  top: -1px;
  right: -1px;
  background: var(--accent-color);
  color: #fff;
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 0 4px 0 4px;
  z-index: 1;
}

.tool-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tool-filter-btn {
  cursor: pointer;
  padding: 5px 12px;
  font-size: 0.75rem;
  border: 1px solid var(--accent-10);
  color: var(--text-muted);
  border-radius: 2px;
  transition: all 0.2s;
  background: transparent;
}

.tool-filter-btn.active {
  border-color: var(--accent-20);
  color: var(--accent-color);
  background: var(--accent-08);
}

/* === Dashboard Entry === */
.dashboard-entry {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px;
  border: 1px solid var(--accent-20);
  border-radius: 8px;
  background: var(--accent-03);
  text-decoration: none;
  transition: all 0.3s;
  margin-top: 32px;
}

.dashboard-entry:hover {
  border-color: var(--accent-40);
  background: var(--accent-06);
}

.dashboard-entry .de-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.dashboard-entry .de-text h3 {
  color: var(--text-main);
  font-weight: 500;
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.dashboard-entry .de-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

.dashboard-entry .de-arrow {
  margin-left: auto;
  color: var(--accent-color);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* === About === */
.about-layout {
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
  margin-top: 20px;
}

@media (min-width: 640px) {
  .about-layout {
    flex-direction: row;
    align-items: flex-start;
  }
}

.about-text {
  flex: 1;
}

.about-text .tagline {
  font-size: 1rem;
  color: var(--accent-color);
  margin-bottom: 20px;
  font-weight: 500;
}

.about-portrait {
  flex-shrink: 0;
  text-align: center;
}

.about-portrait img {
  max-width: 280px;
  width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--accent-20);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08), 0 0 40px var(--accent-06);
  filter: brightness(1.05) contrast(1.03);
}

/* === Subscribe === */
.subscribe-box {
  border: 1px solid var(--accent-15);
  padding: 48px 32px;
  text-align: center;
  background: var(--accent-02);
}

.subscribe-box h2 {
  margin-bottom: 16px;
}

.subscribe-box p {
  margin-bottom: 28px;
  font-size: 0.95rem;
}

.subscribe-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 400px;
  margin: 0 auto;
}

@media (min-width: 480px) {
  .subscribe-form {
    flex-direction: row;
  }
}

.subscribe-form input {
  flex: 1;
  padding: 12px 16px;
  background: var(--dark-04);
  border: 1px solid var(--dark-08);
  color: var(--text-main);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.3s;
}

.subscribe-form input:focus {
  border-color: var(--accent-color);
}

.subscribe-form input::placeholder {
  color: var(--text-light);
}

.subscribe-form button {
  padding: 12px 24px;
  background: var(--accent-color);
  border: none;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s;
  white-space: nowrap;
}

.subscribe-form button:hover {
  background: #e6b96b;
}

.subscribe-visual {
  margin-bottom: 32px;
  text-align: center;
}

.subscribe-visual img {
  max-width: 260px;
  width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--accent-15);
  opacity: 0.85;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

/* === Footer === */
footer {
  border-top: 1px solid var(--border-color);
  padding: 48px 0 32px;
  text-align: center;
}

footer .slogan {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

footer .slogan span {
  color: var(--primary-color);
}

footer .copyright {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-block);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.3s;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.back-to-top:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  transform: translateY(-2px);
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 4px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  font-family: inherit;
}

.hero-btn.primary {
  border: 1px solid var(--accent-30);
  color: var(--accent-color);
  font-weight: 500;
  background: transparent;
}

.hero-btn.primary:hover {
  border: 1px solid var(--accent-30);
  background: var(--accent-color);
  color: #fff;
  font-weight: 500;
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--accent-color) 0%, transparent 100%);
  animation: pulse-down 2s ease-in-out infinite;
}

@keyframes pulse-down {
  0%, 100% {
    opacity: 0.3;
    transform: translateX(-50%) translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateX(-50%) translateY(8px);
  }
}

/* === Mobile Fine-tune === */
@media (max-width: 480px) {
  .section {
    padding: 64px 0;
  }
  nav a {
    margin-left: 14px;
    font-size: 0.75rem;
  }
  .subscribe-box {
    padding: 32px 20px;
  }
  .mini-checkup {
    padding: 20px 16px;
  }
  .mc-question .mc-options {
    flex-direction: column;
  }
  .funnel-step {
    padding: 24px 20px;
  }
  .dashboard-entry {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }
  .dashboard-entry .de-arrow {
    margin-left: 0;
  }
  .mechanism-card {
    padding: 24px 20px;
  }
  .hero-dark h1 {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
  }
  .hero h1 {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
  }
}

/* === Principles Page Specific Styles === */

/* 原则卡片（暗色版本，用于首屏） */
.principle-card-dark {
  background: linear-gradient(135deg, #161A22 0%, #0F121A 100%);
  border: 1px solid #222938;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
}

.principle-card-dark:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* 原则卡片（浅色版本，用于浅色背景区域） */
.principle-card-light {
  background: #FFFFFF;
  border: 1px solid #E8E6E3;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 24px;
  transition: border-color 0.4s ease, transform 0.4s ease, box-shadow 0.4s ease;
}

.principle-card-light:hover {
  border-color: rgba(212, 168, 83, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

/* Tag / Badge */
.tag-plan {
  display: inline-block;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 3px;
  background: rgba(212, 168, 83, 0.12);
  color: var(--accent-color);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.tag-def {
  display: inline-block;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 3px;
  background: rgba(122, 168, 216, 0.12);
  color: #7aa8d8;
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

/* Case block */
.case-block {
  background: rgba(212, 168, 83, 0.04);
  border-left: 3px solid rgba(212, 168, 83, 0.3);
  padding: 16px 20px;
  margin-top: 16px;
  border-radius: 0 6px 6px 0;
}

.case-label {
  font-size: 0.82rem;
  color: var(--accent-color);
  font-weight: 500;
  margin-bottom: 8px;
}

.case-source {
  display: block;
  font-size: 0.75rem;
  color: #8A94A6;
  margin-top: 8px;
  font-style: italic;
}

/* 数据表格（浅色背景） */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.88rem;
}

.data-table th {
  background: #F9F8F6;
  padding: 10px 16px;
  text-align: left;
  font-weight: 500;
  color: #3a3f47;
  border-bottom: 2px solid #E8E6E3;
  font-size: 0.82rem;
}

.data-table td {
  padding: 10px 16px;
  border-bottom: 1px solid #E8E6E3;
  color: #3a3f47;
}

.data-table tr:hover td {
  background: rgba(212, 168, 83, 0.03);
}

/* 数据表格（暗色背景） */
.data-table-dark {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.88rem;
}

.data-table-dark th {
  background: rgba(255, 255, 255, 0.05);
  padding: 10px 16px;
  text-align: left;
  font-weight: 500;
  color: #CCCCCC;
  border-bottom: 2px solid rgba(212, 168, 83, 0.2);
  font-size: 0.82rem;
}

.data-table-dark td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: #CCCCCC;
}

.data-table-dark tr:hover td {
  background: rgba(212, 168, 83, 0.05);
}

/* 表格状态色 */
.safe { color: #7db87d; font-weight: 500; }
.warn { color: var(--accent-color); font-weight: 500; }
.danger { color: #c97a7a; font-weight: 500; }

/* 分隔线 */
.sep {
  border: none;
  border-top: 1px solid #E8E6E3;
}

/* 预约模块（暗色背景） */
.appointment-module {
  background: linear-gradient(135deg, #161A22 0%, #0F121A 100%);
  border: 1px solid rgba(212, 168, 83, 0.2);
  border-radius: 12px;
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
}

.appointment-module::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 400px 400px at 20% 50%, rgba(212, 168, 83, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

/* 表单输入框（暗色背景） */
.form-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  color: #FFFFFF;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.3s;
  font-family: inherit;
}

.form-input:focus {
  border-color: rgba(212, 168, 83, 0.5);
}

.form-input::placeholder {
  color: #5a5855;
}

/* 磨砂玻璃按钮 */
.btn-glass {
  display: inline-block;
  padding: 14px 36px;
  background: rgba(212, 168, 83, 0.1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(212, 168, 83, 0.3);
  border-radius: 6px;
  color: var(--accent-color);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: inherit;
}

.btn-glass:hover {
  background: rgba(212, 168, 83, 0.18);
  border-color: rgba(212, 168, 83, 0.5);
  transform: translateY(-1px);
}

/* 页脚（浅色） */
.footer-light {
  border-top: 1px solid #E8E6E3;
  padding: 48px 0 32px;
  background: #F9F8F6;
  text-align: center;
}

.footer-light .slogan {
  font-size: 0.9rem;
  color: #3a3f47;
  margin-bottom: 8px;
}

.footer-light .slogan span {
  color: var(--accent-color);
}

.footer-light .copyright {
  font-size: 0.75rem;
  color: #8A94A6;
}

/* 移动端响应式（principles.html 专属） */
@media (max-width: 768px) {
  .hero-dark {
    padding-top: 80px;
    min-height: 100vh;
  }
  
  .principle-card-dark,
  .principle-card-light {
    padding: 24px 20px;
  }
  
  .appointment-module {
    padding: 32px 24px;
  }
  
  .data-table,
  .data-table-dark {
    font-size: 0.82rem;
  }
  
  .data-table th,
  .data-table-dark th {
    padding: 8px 12px;
    font-size: 0.78rem;
  }
  
  .data-table td,
  .data-table-dark td {
    padding: 8px 12px;
  }
  
  /* 表单在手机上撑满 */
  form[style*="max-width:480px"] {
    max-width: 100% !important;
  }
}

/* 滚动触发动画（IntersectionObserver 驱动） */
.reveal-text {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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