/* ============================================
   岳链社区 — 水墨风格 CSS
   ============================================ */

:root {
  /* 水墨配色 */
  --ink-deepest: #0a0a0a;
  --ink-deep: #1a1612;
  --ink-dark: #2c241c;
  --ink-medium: #4a3f33;
  --ink-soft: #6b5d4f;
  --ink-light: #8a7b6b;
  --ink-pale: #b5a89a;

  /* 宣纸色系 */
  --paper-white: #f5f0e8;
  --paper-cream: #ede5d8;
  --paper-warm: #e8dcc9;
  --paper-aged: #d9ccb5;
  --paper-dark: #c4b69e;

  /* 墨点/强调色 */
  --accent-ink: #1a1612;
  --accent-gold: #b8973a;
  --accent-gold-light: #d4b85c;
  --accent-red: #8b2500;

  /* 水墨灰阶 */
  --mist: rgba(245, 240, 232, 0.08);
  --mist-medium: rgba(245, 240, 232, 0.15);
  --mist-strong: rgba(245, 240, 232, 0.25);

  /* 字体 */
  --font-display: 'Ma Shan Zheng', 'Noto Serif SC', serif;
  --font-serif: 'Noto Serif SC', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;

  /* 间距 */
  --section-py: clamp(80px, 12vw, 140px);
  --container-px: clamp(20px, 5vw, 80px);
  --container-max: 1200px;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--paper-white);
  color: var(--ink-dark);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }
ul { list-style: none; }

/* ===== 噪点纹理 ===== */
.noise-overlay {
  position: fixed; inset: 0; z-index: 9999;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ===== Container ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* ===== 导航栏 ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.nav.scrolled {
  background: rgba(245, 240, 232, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(26, 22, 18, 0.08);
  padding: 10px 0;
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
}
.nav-logo-img {
  width: 36px; height: 36px;
  border-radius: 6px;
  object-fit: cover;
}
.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ink-deep);
  letter-spacing: 2px;
}
.nav-links {
  display: flex;
  gap: 6px;
}
.nav-link {
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 20px;
  color: var(--ink-soft);
  transition: all 0.3s;
  font-weight: 400;
  letter-spacing: 0.5px;
}
.nav-link:hover, .nav-link.active {
  color: var(--ink-deep);
  background: var(--mist);
}
.nav-actions {
  display: flex; gap: 8px; align-items: center;
}
.btn-ghost {
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--ink-medium);
  border: 1px solid var(--ink-pale);
  transition: all 0.3s;
}
.btn-ghost:hover {
  background: var(--ink-deep);
  color: var(--paper-white);
  border-color: var(--ink-deep);
}
.btn-primary-sm {
  padding: 7px 18px;
  border-radius: 20px;
  font-size: 0.85rem;
  background: var(--ink-deep);
  color: var(--paper-white);
  transition: all 0.3s;
  font-weight: 500;
}
.btn-primary-sm:hover {
  background: var(--accent-gold);
  color: var(--ink-deep);
}

/* 汉堡菜单 */
.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--ink-dark);
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px var(--container-px) 60px;
  overflow: hidden;
  background: var(--ink-deep);
}
.hero-ink-bg {
  position: absolute; inset: 0;
  background:
    url('images/ink-hero.jpg') center/cover no-repeat,
    linear-gradient(135deg, var(--ink-deepest) 0%, var(--ink-dark) 50%, #1f1a14 100%);
  opacity: 0.35;
  filter: grayscale(30%);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 80%, transparent 0%, var(--ink-deep) 70%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 30px;
  background: var(--mist);
  border: 1px solid var(--mist-medium);
  color: var(--accent-gold-light);
  font-size: 0.82rem;
  letter-spacing: 1px;
  font-weight: 400;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  color: var(--paper-white);
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: 4px;
}
.ink-stroke {
  background: linear-gradient(135deg, var(--accent-gold-light) 0%, var(--accent-gold) 50%, #d4a84c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-family: var(--font-serif);
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: var(--ink-pale);
  line-height: 1.9;
  margin-bottom: 36px;
  font-weight: 300;
  letter-spacing: 0.5px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 50px;
}
.btn-primary {
  padding: 14px 36px;
  border-radius: 30px;
  background: var(--accent-gold);
  color: var(--ink-deepest);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(184, 151, 58, 0.3);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(184, 151, 58, 0.45);
  background: var(--accent-gold-light);
}
.btn-secondary {
  padding: 14px 36px;
  border-radius: 30px;
  background: transparent;
  color: var(--paper-white);
  font-size: 0.95rem;
  border: 1px solid var(--mist-strong);
  transition: all 0.4s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-secondary:hover {
  background: var(--mist);
  border-color: var(--accent-gold);
  color: var(--accent-gold-light);
}
.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}
.hero-stat {
  text-align: center;
}
.hero-stat-val {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--paper-white);
  letter-spacing: 1px;
}
.hero-stat-label {
  font-size: 0.78rem;
  color: var(--ink-pale);
  letter-spacing: 1px;
  margin-top: 4px;
  font-weight: 300;
}
.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--mist-medium);
}

/* 滚动指示器 */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--ink-pale);
  font-size: 0.72rem;
  letter-spacing: 2px;
  opacity: 0.6;
  animation: scrollFloat 2s ease-in-out infinite;
}
.scroll-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
}
@keyframes scrollFloat {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Section 通用 ===== */
.section {
  padding: var(--section-py) 0;
  position: relative;
}
.section-alt {
  background: var(--paper-cream);
}
.section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-pale), transparent);
  opacity: 0.3;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 4px;
  color: var(--accent-gold);
  font-weight: 500;
  margin-bottom: 16px;
  text-transform: uppercase;
  position: relative;
  padding: 0 20px;
}
.section-tag::before, .section-tag::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30px;
  height: 1px;
  background: var(--accent-gold);
  opacity: 0.4;
}
.section-tag::before { left: -20px; }
.section-tag::after { right: -20px; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--ink-deep);
  letter-spacing: 3px;
  margin-bottom: 16px;
}
.section-desc {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--ink-soft);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
  font-weight: 300;
}

/* ===== 关于我们卡片 ===== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.about-card {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.06);
  border-radius: 16px;
  padding: 36px 28px;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.about-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
  opacity: 0;
  transition: opacity 0.5s;
}
.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(26, 22, 18, 0.08);
}
.about-card:hover::before { opacity: 1; }
.about-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--ink-deep), var(--ink-dark));
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-gold-light);
  font-size: 1.3rem;
  margin-bottom: 20px;
}
.about-card-logo {
  width: 72px; height: 72px;
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 2px solid rgba(26, 22, 18, 0.08);
  box-shadow: 0 4px 12px rgba(26, 22, 18, 0.08);
  flex-shrink: 0;
}
.about-card-logo img {
  width: 100%; height: 100%;
  object-fit: cover;
}
.about-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink-deep);
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.about-card p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.8;
  font-weight: 300;
}

/* ===== 核心功能 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.06);
  border-radius: 16px;
  padding: 40px 30px;
  position: relative;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 50px rgba(26, 22, 18, 0.1);
}
.feature-num {
  position: absolute;
  top: -10px; right: 20px;
  font-family: var(--font-display);
  font-size: 5rem;
  color: var(--ink-deep);
  opacity: 0.04;
  line-height: 1;
  font-weight: 900;
}
.feature-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--ink-deep);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-gold-light);
  font-size: 1.2rem;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink-deep);
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.feature-card > p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 16px;
}
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feature-list li {
  font-size: 0.85rem;
  color: var(--ink-medium);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.feature-list li i {
  color: var(--accent-gold);
  font-size: 0.7rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ===== 收益试算器 ===== */
.calculator-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 0;
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.08);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(26, 22, 18, 0.06);
}
.calc-form-panel {
  padding: 40px 36px;
  border-right: 1px solid rgba(26, 22, 18, 0.06);
}
.calc-result-panel {
  padding: 40px 36px;
  background: var(--paper-cream);
}
.calc-panel-title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink-deep);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 1px;
}
.calc-panel-title i {
  color: var(--accent-gold);
}
.calc-field {
  margin-bottom: 20px;
}
.calc-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-medium);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.calc-field input[type="date"],
.calc-field input[type="number"],
.calc-field input[type="text"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(26, 22, 18, 0.12);
  border-radius: 10px;
  background: var(--paper-white);
  color: var(--ink-deep);
  font-size: 0.95rem;
  transition: all 0.3s;
  outline: none;
}
.calc-field input:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(184, 151, 58, 0.1);
}
.calc-price-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.calc-price-row input {
  flex: 1;
}
.calc-price-unit {
  font-size: 0.82rem;
  color: var(--ink-light);
  font-weight: 500;
  min-width: 40px;
}
.calc-hint {
  font-size: 0.75rem;
  color: var(--ink-light);
  margin-top: 4px;
  display: block;
}

/* 滑块 */
.calc-slider-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}
.calc-slider-wrap input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--ink-pale), var(--accent-gold));
  outline: none;
}
.calc-slider-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent-gold);
  border: 3px solid var(--paper-white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  cursor: pointer;
}
.calc-slider-val {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-gold);
  min-width: 60px;
  text-align: right;
}
.calc-presets {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.preset-btn {
  padding: 5px 12px;
  border-radius: 16px;
  font-size: 0.75rem;
  border: 1px solid rgba(26, 22, 18, 0.1);
  color: var(--ink-medium);
  background: var(--paper-white);
  transition: all 0.3s;
  letter-spacing: 0.3px;
}
.preset-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(184, 151, 58, 0.06);
}
.calc-btn {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
  padding: 14px;
  font-size: 1rem;
}

/* 结果面板 */
.calc-results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}
.result-card {
  background: var(--paper-white);
  border-radius: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(26, 22, 18, 0.05);
}
.result-card.highlight {
  grid-column: 1 / -1;
  background: var(--ink-deep);
  border-color: var(--ink-deep);
}
.result-card.highlight .result-label { color: var(--ink-pale); }
.result-card.highlight .result-value { color: var(--accent-gold-light); }
.result-label {
  font-size: 0.75rem;
  color: var(--ink-light);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.result-value {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink-deep);
}
.result-value.big {
  font-size: 1.6rem;
  letter-spacing: 1px;
}
.result-value.small {
  font-size: 0.9rem;
}

/* 图表 */
.calc-chart-wrap {
  background: var(--paper-white);
  border-radius: 14px;
  padding: 20px;
  border: 1px solid rgba(26, 22, 18, 0.05);
}
.chart-title {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--ink-medium);
  margin-bottom: 14px;
  font-weight: 500;
}
/* K线图工具栏 */
.kline-toolbar {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.kline-btn {
  padding: 5px 14px;
  border-radius: 14px;
  font-size: 0.78rem;
  border: 1px solid rgba(26, 22, 18, 0.1);
  color: var(--ink-medium);
  background: var(--paper-cream);
  transition: all 0.3s;
  letter-spacing: 0.3px;
  cursor: pointer;
}
.kline-btn:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}
.kline-btn.active {
  background: var(--ink-deep);
  color: var(--accent-gold-light);
  border-color: var(--ink-deep);
}
.kline-chart-container {
  height: 300px;
  position: relative;
}
.kline-chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}
.chart-legend {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 12px;
}
.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--ink-soft);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 3px;
}
.dot-ink { background: var(--ink-deep); }
.dot-mist { background: var(--ink-pale); opacity: 0.5; }

/* 占位 */
.calc-placeholder {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-light);
}
.calc-placeholder i {
  font-size: 2.5rem;
  margin-bottom: 16px;
  opacity: 0.3;
}
.calc-placeholder p {
  font-size: 0.9rem;
  line-height: 1.8;
}

/* 免责 */
.calc-disclaimer {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  padding: 16px 20px;
  background: rgba(184, 151, 58, 0.06);
  border-radius: 10px;
  border-left: 3px solid var(--accent-gold);
  font-size: 0.8rem;
  color: var(--ink-soft);
  line-height: 1.7;
  align-items: flex-start;
}
.calc-disclaimer i {
  color: var(--accent-gold);
  margin-top: 2px;
  flex-shrink: 0;
}

/* ===== 用户评价 ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.06);
  border-radius: 16px;
  padding: 36px 30px;
  position: relative;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(26, 22, 18, 0.07);
}
.testimonial-quote {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--accent-gold);
  opacity: 0.2;
  line-height: 1;
  position: absolute;
  top: 16px; left: 24px;
}
.testimonial-text {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  color: var(--ink-medium);
  line-height: 1.9;
  font-weight: 300;
  margin-bottom: 20px;
  padding-top: 10px;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--ink-deep);
  color: var(--accent-gold-light);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
}
.author-name {
  font-weight: 600;
  color: var(--ink-deep);
  font-size: 0.9rem;
}
.author-title {
  font-size: 0.78rem;
  color: var(--ink-light);
  margin-top: 2px;
}

/* ===== 数据仪表盘 ===== */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 18px;
  margin-bottom: 30px;
}
.dash-card {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.06);
  border-radius: 14px;
  padding: 24px 20px;
  text-align: center;
  transition: all 0.4s;
}
.dash-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26, 22, 18, 0.06);
}
.dash-icon {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--ink-deep);
  color: var(--accent-gold-light);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
  font-size: 1rem;
}
.dash-label {
  font-size: 0.78rem;
  color: var(--ink-light);
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.dash-value {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink-deep);
}
.dash-sub {
  font-size: 0.72rem;
  color: var(--ink-pale);
  margin-top: 4px;
}

/* 合约 */
.dash-contract-box {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.08);
  border-radius: 14px;
  padding: 24px 28px;
  margin-bottom: 20px;
}
.dash-contract-box h4 {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-deep);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dash-contract-box h4 i {
  color: var(--accent-gold);
}
.contract-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(26, 22, 18, 0.04);
}
.contract-row:last-child { border-bottom: none; }
.contract-label {
  font-size: 0.82rem;
  color: var(--ink-light);
  min-width: 120px;
}
.contract-addr {
  font-size: 0.82rem;
  color: var(--ink-medium);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.3px;
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.copy-btn {
  padding: 6px 10px;
  border-radius: 8px;
  color: var(--ink-light);
  transition: all 0.3s;
  font-size: 0.85rem;
}
.copy-btn:hover {
  background: var(--ink-deep);
  color: var(--accent-gold-light);
}
.dash-refresh {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
}
.dash-updated {
  font-size: 0.78rem;
  color: var(--ink-light);
}

/* ===== 联系方式 ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: flex-start;
}
.contact-info-side h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--ink-deep);
  margin-bottom: 12px;
  letter-spacing: 2px;
}
.contact-desc {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.8;
  margin-bottom: 28px;
  font-weight: 300;
}
.contact-items {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 30px;
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.contact-item i {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--ink-deep);
  color: var(--accent-gold-light);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 0.95rem;
}
.contact-item-label {
  font-size: 0.75rem;
  color: var(--ink-light);
  letter-spacing: 0.5px;
}
.contact-item-value {
  font-size: 0.9rem;
  color: var(--ink-deep);
  font-weight: 500;
  margin-top: 2px;
}
.contact-ark-info {
  background: var(--paper-white);
  border-radius: 12px;
  padding: 20px;
  border: 1px solid rgba(26, 22, 18, 0.06);
}
.contact-ark-info h4 {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--ink-deep);
  margin-bottom: 12px;
  font-weight: 600;
}
.ark-info-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(26, 22, 18, 0.04);
}
.ark-info-row:last-child { border-bottom: none; }
.ark-info-row span:first-child { color: var(--ink-light); }
.ark-info-row span:last-child { color: var(--ink-deep); font-weight: 500; }
.mono { font-family: 'Courier New', monospace; font-size: 0.78rem; }
.mono-small { font-family: 'Courier New', monospace; font-size: 0.78rem; }

/* 表单 */
.contact-form-side h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ink-deep);
  margin-bottom: 24px;
  letter-spacing: 2px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.form-field {
  margin-bottom: 16px;
}
.form-row .form-field { margin-bottom: 0; }
.form-field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--ink-medium);
  margin-bottom: 6px;
}
.req { color: var(--accent-red); }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(26, 22, 18, 0.12);
  border-radius: 10px;
  background: var(--paper-white);
  color: var(--ink-deep);
  font-size: 0.95rem;
  transition: all 0.3s;
  outline: none;
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(184, 151, 58, 0.1);
}
.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
}
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--ink-medium);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  transition: all 0.3s;
  border: 1px solid transparent;
}
.checkbox-item:hover {
  background: var(--paper-warm);
}
.checkbox-item:has(input:checked) {
  background: rgba(184, 151, 58, 0.08);
  border-color: var(--accent-gold);
}
.checkbox-item input[type="checkbox"] {
  width: auto;
  accent-color: var(--accent-gold);
}
.contact-submit-btn {
  width: 100%;
  justify-content: center;
  padding: 14px;
  margin-top: 8px;
}
.form-success {
  text-align: center;
  padding: 24px;
  margin-top: 16px;
  background: rgba(34, 139, 34, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(34, 139, 34, 0.15);
}
.form-success i {
  font-size: 2rem;
  color: #228b22;
  margin-bottom: 8px;
}
.form-success p {
  color: #228b22;
  font-size: 0.9rem;
}

/* ===== 页脚 ===== */
.footer {
  background: var(--ink-deep);
  padding: 60px 0 30px;
  color: var(--ink-pale);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  width: 48px; height: 48px;
  border-radius: 10px;
  margin-bottom: 14px;
}
.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--paper-white);
  margin-bottom: 10px;
  letter-spacing: 2px;
}
.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  opacity: 0.7;
  margin-bottom: 16px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.social-link {
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--mist-medium);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-pale);
  font-size: 1rem;
  transition: all 0.3s;
}
.social-link:hover {
  background: var(--accent-gold);
  color: var(--ink-deep);
  border-color: var(--accent-gold);
}
.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  color: var(--paper-white);
  margin-bottom: 16px;
  font-weight: 600;
  letter-spacing: 1px;
}
.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-pale);
  padding: 5px 0;
  transition: color 0.3s;
  opacity: 0.7;
}
.footer-col a:hover {
  color: var(--accent-gold-light);
  opacity: 1;
}
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--mist);
  text-align: center;
}
.footer-bottom p {
  font-size: 0.78rem;
  opacity: 0.5;
  line-height: 1.8;
}
.footer-disclaimer {
  margin-top: 6px;
}

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0;
  z-index: 10000;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s;
  padding: 20px;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--paper-white);
  border-radius: 20px;
  padding: 40px 36px;
  width: 100%;
  max-width: 440px;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-light);
  transition: all 0.3s;
}
.modal-close:hover {
  background: var(--paper-warm);
  color: var(--ink-deep);
}
.modal-logo {
  text-align: center;
  margin-bottom: 20px;
}
.modal-logo img {
  width: 60px; height: 60px;
  border-radius: 14px;
  margin: 0 auto;
  object-fit: cover;
}
.modal h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  color: var(--ink-deep);
  text-align: center;
  letter-spacing: 2px;
  margin-bottom: 6px;
}
.modal-subtitle {
  text-align: center;
  font-size: 0.88rem;
  color: var(--ink-light);
  margin-bottom: 28px;
}
.auth-form .form-field { margin-bottom: 16px; }
.auth-form .form-field label {
  font-size: 0.82rem;
}
.auth-form input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(26, 22, 18, 0.12);
  border-radius: 10px;
  background: var(--paper-cream);
  color: var(--ink-deep);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s;
}
.auth-form input:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(184, 151, 58, 0.1);
}
.auth-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}
.auth-forgot {
  font-size: 0.82rem;
  color: var(--accent-gold);
}
.auth-btn {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 1rem;
}
.auth-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--ink-light);
}
.auth-switch a {
  color: var(--accent-gold);
  font-weight: 600;
}
.auth-agree {
  margin-bottom: 20px;
}
.auth-agree span {
  font-size: 0.8rem;
  color: var(--ink-light);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--ink-deep);
  color: var(--paper-white);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 0.88rem;
  z-index: 100000;
  opacity: 0;
  transition: all 0.4s;
  pointer-events: none;
  box-shadow: 0 8px 30px rgba(0,0,0,0.2);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ===== 动画 ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transition-delay: var(--d, 0s);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 联系导航链接 ===== */
.contact-nav-link {
  color: var(--ink-deep);
  text-decoration: none;
  transition: color 0.3s;
}
.contact-nav-link:hover {
  color: var(--accent-gold);
}

/* ===== 社区生态 ===== */
.eco-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.eco-card {
  background: var(--paper-white);
  border: 1px solid rgba(26, 22, 18, 0.06);
  border-radius: 16px;
  padding: 32px 28px;
  position: relative;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}
.eco-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(26, 22, 18, 0.08);
}
.eco-card-wide {
  grid-column: 1 / -1;
}
.eco-card-logo {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 16px;
  border: 2px solid rgba(26, 22, 18, 0.06);
  box-shadow: 0 2px 8px rgba(26, 22, 18, 0.06);
}
.eco-card-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.eco-card-logo-wide {
  width: 100%;
  height: 120px;
  border-radius: 12px;
  border: none;
  box-shadow: none;
  margin-bottom: 20px;
}
.eco-card-logo-wide img {
  object-fit: cover;
  object-position: center;
}
.eco-badge {
  position: absolute;
  top: 16px; right: 16px;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 0.72rem;
  background: rgba(184, 151, 58, 0.1);
  color: var(--accent-gold);
  font-weight: 500;
  letter-spacing: 0.3px;
}
.eco-icon {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--ink-deep);
  color: var(--accent-gold-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 16px;
}
.eco-card h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--ink-deep);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}
.eco-card > p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.7;
  margin-bottom: 16px;
  font-weight: 300;
}
.eco-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}
.eco-features li {
  font-size: 0.85rem;
  color: var(--ink-medium);
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.6;
}
.eco-features li i {
  color: var(--accent-gold);
  font-size: 0.7rem;
  margin-top: 5px;
  flex-shrink: 0;
}
.eco-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 20px;
  background: var(--ink-deep);
  color: var(--paper-white);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all 0.3s;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
}
.eco-link:hover {
  background: var(--accent-gold);
  color: var(--ink-deep);
}
.eco-link-wechat {
  background: #07c160;
}
.eco-link-wechat:hover {
  background: #06ad56;
  color: #fff;
}
.eco-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(245, 240, 232, 0.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px var(--container-px);
    gap: 4px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
  .nav-actions { display: none; }

  .calculator-wrap {
    grid-template-columns: 1fr;
  }
  .calc-form-panel {
    border-right: none;
    border-bottom: 1px solid rgba(26, 22, 18, 0.06);
  }
  .contact-wrap {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    gap: 24px;
  }
  .hero-stat-divider {
    display: none;
  }
}

@media (max-width: 600px) {
  .about-grid, .features-grid, .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .dashboard-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .calc-results {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  .eco-grid {
    grid-template-columns: 1fr;
  }
  .kline-chart-container {
    height: 240px;
  }
}