/* ========== 设计令牌 ========== */
:root {
  /* 色彩 */
  --bg: #FAF8F3;
  --surface: #FFFFFF;
  --surface-elevated: #FFFFFF;
  --ink: #2B2B26;
  --ink-soft: #6E6B5C;
  --ink-muted: #A7A28E;
  --green: #2C5530;
  --green-deep: #1E3D22;
  --green-light: #E8F5E9;
  --green-subtle: #F3F8F0;
  --sage: #7C9473;
  --gold: #C9A227;
  --gold-soft: #F8F1D8;
  --line: #E8E4D6;
  --line-strong: #D8D3C2;

  /* 字体 */
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Menlo", monospace;

  /* 尺寸 */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --wrap-max: 980px;
  --header-h: 64px;

  /* 阴影 */
  --shadow-color: rgba(44, 85, 48, 0.08);
  --shadow-color-strong: rgba(44, 85, 48, 0.18);
  --shadow-sm: 0 2px 8px var(--shadow-color);
  --shadow: 0 4px 16px var(--shadow-color);
  --shadow-lg: 0 12px 32px var(--shadow-color);

  /* 组件 */
  --tag-bg: var(--green-subtle);
  --tag-border: #DCE6D2;
  --feedback-hover-bg: #F9F8F2;
  --feedback-done-bg: #F4F6EF;
  --status-ok-bg: #EEF2E8;
  --status-ok-border: #DCE6D2;
  --status-err-bg: #FBEAEA;
  --status-err-border: #F3D0D0;
  --btn-secondary-hover: #F2EEE0;
  --search-clear-hover: #EEF2E8;
  --table-header-bg: #F9F8F2;
  --placeholder-color: var(--ink-muted);
  --toast-bg: rgba(30, 61, 34, 0.92);
  --leaf-color: var(--green);

  /* 动画 */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ========== 深色模式 ========== */
[data-theme="dark"] {
  --bg: #1A1D1A;
  --surface: #242924;
  --surface-elevated: #2A2F2A;
  --ink: #E8E4D9;
  --ink-soft: #A8A390;
  --ink-muted: #7A7568;
  --green: #6B9E6F;
  --green-deep: #8FBF93;
  --green-light: #2A3A2A;
  --green-subtle: #2A3A2A;
  --sage: #8FA88A;
  --gold: #D4B43A;
  --gold-soft: #3A3522;
  --line: #3A4038;
  --line-strong: #4A5048;
  --shadow-color: rgba(0, 0, 0, 0.25);
  --shadow-color-strong: rgba(0, 0, 0, 0.45);
  --tag-bg: #2E3A2E;
  --tag-border: #3E4E3E;
  --feedback-hover-bg: #2E322E;
  --feedback-done-bg: #2A2F2A;
  --status-ok-bg: #2A3A2A;
  --status-ok-border: #3E5E3E;
  --status-err-bg: #3A2222;
  --status-err-border: #5E3E3E;
  --btn-secondary-hover: #2E3228;
  --search-clear-hover: #2E3A2E;
  --table-header-bg: #2A2F2A;
  --toast-bg: rgba(40, 60, 42, 0.95);
  --leaf-color: #5A7A5E;
}

[data-theme="dark"] body {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='60' viewBox='0 0 200 60'%3E%3Cpath d='M0 10 Q100 45 200 10' fill='none' stroke='%236B9E6F' stroke-width='1.2' opacity='0.07'/%3E%3Cpath d='M0 30 Q100 65 200 30' fill='none' stroke='%236B9E6F' stroke-width='1.2' opacity='0.07'/%3E%3Cpath d='M0 50 Q100 85 200 50' fill='none' stroke='%236B9E6F' stroke-width='1.2' opacity='0.07'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

[data-theme="dark"] html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='60' viewBox='0 0 200 60'%3E%3Cpath d='M0 10 Q100 45 200 10' fill='none' stroke='%23008268' stroke-width='1.2' opacity='0.085'/%3E%3Cpath d='M0 30 Q100 65 200 30' fill='none' stroke='%23008268' stroke-width='1.2' opacity='0.085'/%3E%3Cpath d='M0 50 Q100 85 200 50' fill='none' stroke='%23008268' stroke-width='1.2' opacity='0.085'/%3E%3C/svg%3E");
  background-repeat: repeat;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

:focus-visible {
  outline: 2.5px solid rgba(107, 158, 111, 0.6);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ========== 页面加载动画 ========== */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-inner {
  display: flex;
  align-items: center;
  gap: 12px;
}

.loader-mark {
  width: 32px;
  height: 32px;
  color: var(--green);
  transform-origin: bottom center;
  animation: seedlingGrow 1.2s ease-in-out infinite;
}

.loader-text {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
}

@keyframes seedlingGrow {
  0%, 100% {
    transform: scaleY(0.78) rotate(-2deg);
    opacity: 0.65;
  }
  50% {
    transform: scaleY(1) rotate(1deg);
    opacity: 1;
  }
}

/* ========== 布局容器 ========== */
.wrap {
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}

.section {
  padding-top: 24px;
  padding-bottom: 24px;
}

/* ========== 顶部导航 ========== */
.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(250, 248, 243, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

[data-theme="dark"] .site-header {
  background: rgba(26, 29, 26, 0.86);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  color: var(--green-deep);
  min-width: 0;
  transition: color 0.2s ease;
}

.brand:hover {
  color: var(--green);
}

.brand-mark {
  width: 26px;
  height: 26px;
  color: var(--green);
  flex-shrink: 0;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header-note {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  text-align: right;
  flex-shrink: 0;
  max-width: 180px;
  line-height: 1.5;
}

/* ========== 主题切换按钮 ========== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
  position: relative;
}

.theme-toggle:hover {
  border-color: var(--sage);
  color: var(--green-deep);
  transform: scale(1.05);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: opacity 0.25s ease, transform 0.25s var(--ease-out);
}

.theme-icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.theme-icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

[data-theme="dark"] .theme-icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

[data-theme="dark"] .theme-icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* ========== 首页 Hero ========== */
.hero {
  padding: 36px 0 28px;
  position: relative;
}

.hero-inner {
  max-width: 760px;
  margin: 0 auto;
}

.hero-glow {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 560px;
  height: 320px;
  background: radial-gradient(ellipse at center, rgba(107, 158, 111, 0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

[data-theme="dark"] .hero-glow {
  background: radial-gradient(ellipse at center, rgba(107, 158, 111, 0.08) 0%, transparent 70%);
}

.hero-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.25;
  color: var(--green-deep);
  margin: 0 0 24px;
  text-align: center;
}

/* ========== 顶部提示条 ========== */
.top-banner {
  background: var(--gold-soft);
  border: 1px solid rgba(201, 162, 39, 0.22);
  border-radius: var(--radius);
  padding: 12px 18px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.top-banner::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gold);
}

[data-theme="dark"] .top-banner {
  background: var(--gold-soft);
}

.top-banner-text {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.5;
}

.top-banner-text strong {
  color: var(--green-deep);
  font-weight: 600;
}

/* ========== 搜索框 ========== */
.search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  outline: 0 solid transparent;
  outline-offset: -1px;
  transition: border-color 0.3s ease, outline 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  z-index: 2;
  margin-top: 28px;
}

.search-box:focus-within {
  border-color: var(--green);
  outline: 2.5px solid rgba(107, 158, 111, 0.55);
  box-shadow: 0 0 0 4px rgba(107, 158, 111, 0.12), var(--shadow);
}

.search-icon {
  width: 22px;
  height: 22px;
  color: var(--ink-muted);
  flex-shrink: 0;
  transition: color 0.2s ease;
}

.search-box:focus-within .search-icon {
  color: var(--green);
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 16px;
  color: var(--ink);
  width: 100%;
  font-family: inherit;
  line-height: 1.5;
}

.search-box input::placeholder {
  color: var(--placeholder-color);
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.search-clear {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.15s ease, color 0.15s ease;
  pointer-events: none;
}

.search-clear svg {
  width: 14px;
  height: 14px;
}

.search-clear.show {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.search-clear:hover {
  background: var(--search-clear-hover);
  color: var(--green-deep);
}

.search-box input.sb-clearing {
  transform: translateX(-12px);
  opacity: 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.search-box input.sb-refill {
  opacity: 0;
}

/* ========== 分类标签 ========== */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  justify-content: center;
}

.chip {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--line);
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: transform 0.2s var(--ease-bounce), background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.chip:hover {
  border-color: var(--sage);
  color: var(--green-deep);
}

.chip.active {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
  transform: scale(1.04);
}

.chip:active {
  transform: scale(0.98);
}

/* ========== 信息卡片栏（倒计时 + 指南） ========== */
.info-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.info-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.info-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.info-card.clickable {
  cursor: pointer;
}

.info-card-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 700;
  color: var(--green-deep);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  border-radius: 999px;
  letter-spacing: 0.04em;
  align-self: flex-start;
}

.info-card-title {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 8px;
  line-height: 1.45;
}

.info-card-list {
  margin: 0;
  padding: 0;
  list-style: none;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.info-card-list li {
  font-size: 14px;
  color: var(--green-deep);
  font-weight: 600;
  line-height: 1.4;
  position: relative;
  padding-left: 16px;
}

.info-card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--sage);
  border-radius: 50%;
}

/* ========== 高精度倒计时 ========== */
.countdown-number {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1;
  margin: 6px 0 4px;
  display: flex;
  align-items: baseline;
}

.countdown-int {
  font-size: 40px;
  letter-spacing: -1px;
}

.countdown-dot {
  font-size: 40px;
  opacity: 0.6;
  margin: 0 1px;
  animation: dotBreathe 2s ease-in-out infinite;
}

.countdown-decimal {
  font-size: 18px;
  opacity: 0.75;
  min-width: 4.5ch;
  display: inline-block;
  letter-spacing: 1px;
}

.countdown-decimal.tick {
  animation: decimalScroll 0.22s ease;
}

@keyframes decimalScroll {
  0%   { transform: translateY(0); opacity: 0.75; }
  50%  { transform: translateY(-3px); opacity: 1; color: var(--green); }
  100% { transform: translateY(0); opacity: 0.75; }
}

.countdown-int.tick {
  animation: intScroll 0.35s ease;
}

@keyframes intScroll {
  0%   { transform: translateY(0); opacity: 1; }
  40%  { transform: translateY(-5px); opacity: 0.75; color: var(--green); }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes dotBreathe {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.9; }
}

.countdown-unit {
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 500;
}

/* ========== 结果区 ========== */
.results-wrap {
  padding-top: 8px;
  padding-bottom: 72px;
}

.results-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
  padding: 14px 2px 12px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.results-meta-left {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.results-meta-right {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

#updatedAt {
  color: var(--sage);
  font-weight: 500;
}

#searchTime {
  color: var(--ink-muted);
}

.clear-filter {
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--green);
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: rgba(44, 85, 48, 0.25);
  text-underline-offset: 2px;
}

.clear-filter:hover {
  color: var(--green-deep);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.card-grid.is-fading {
  opacity: 0;
  transform: translateY(10px);
}

/* ========== 问答卡片 ========== */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  opacity: 0;
  transform: translateY(14px) scale(0.98);
  will-change: opacity, transform;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), box-shadow 0.2s ease, border-color 0.2s ease;
}

.card.is-visible:nth-child(1)  { transition-delay: 0ms; }
.card.is-visible:nth-child(2)  { transition-delay: 25ms; }
.card.is-visible:nth-child(3)  { transition-delay: 50ms; }
.card.is-visible:nth-child(4)  { transition-delay: 75ms; }
.card.is-visible:nth-child(5)  { transition-delay: 100ms; }
.card.is-visible:nth-child(6)  { transition-delay: 125ms; }
.card.is-visible:nth-child(7)  { transition-delay: 150ms; }
.card.is-visible:nth-child(8)  { transition-delay: 175ms; }
.card.is-visible:nth-child(9)  { transition-delay: 200ms; }
.card.is-visible:nth-child(10) { transition-delay: 225ms; }
.card.is-visible:nth-child(n+11) { transition-delay: 250ms; }

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.card.is-visible:hover {
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--green-deep);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  padding: 4px 10px;
  border-radius: 999px;
  flex-shrink: 0;
}

.card-tag::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
}

.card-q {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  line-height: 1.45;
}

.card-a {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.65;
}

.card-a.is-clamped {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-a .highlight {
  background: rgba(201, 162, 39, 0.16);
  color: var(--green-deep);
  font-weight: 700;
  padding: 1px 3px;
  border-radius: 4px;
}

.expand-btn {
  align-self: flex-start;
  font-size: 13px;
  font-weight: 500;
  color: var(--green);
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  margin-top: -4px;
}

.expand-btn:hover {
  color: var(--green-deep);
  text-decoration: underline;
}

/* ========== 卡片反馈 ========== */
.card-feedback {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.card-feedback-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 48px;
  height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 13px;
  line-height: 1;
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, transform 0.15s ease, color 0.15s ease;
}

.card-feedback-btn:hover:not(:disabled) {
  border-color: var(--sage);
  background: var(--feedback-hover-bg);
  color: var(--green-deep);
  transform: scale(1.05);
}

.card-feedback-btn:active:not(:disabled) {
  transform: scale(0.96);
}

.card-feedback-btn.is-active {
  background: var(--tag-bg);
  border-color: var(--green);
  color: var(--green-deep);
}

.card-feedback-btn:disabled {
  cursor: default;
  opacity: 0.9;
}

.card-feedback-btn .fb-icon {
  font-size: 12px;
}

.card-feedback-btn .fb-count {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 500;
}

.card-feedback-done {
  font-size: 12px;
  color: var(--sage);
  padding: 4px 10px;
  background: var(--feedback-done-bg);
  border-radius: 999px;
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  color: var(--ink-soft);
  padding: 64px 20px;
  font-size: 15px;
  line-height: 1.7;
}

.empty-state-illustration {
  width: 96px;
  height: 96px;
  margin: 0 auto 20px;
  background: var(--feedback-done-bg);
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

.empty-state-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 6px;
}

.empty-state-suggestions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
}

/* ========== 复制按钮 ========== */
.wx-copy-btn {
  display: inline;
  padding: 0;
  margin-left: 4px;
  border: none;
  background: none;
  color: var(--green-deep);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  border-bottom: 1px dashed rgba(143, 191, 147, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}

.wx-copy-btn:hover {
  color: var(--green);
  border-bottom-color: var(--green);
}

.wx-copy-btn:active {
  opacity: 0.7;
}

.wx-copy-btn.is-copied {
  color: var(--green);
  border-bottom-style: solid;
}

/* ========== Toast ========== */
.copy-toast {
  position: fixed;
  left: 50%;
  bottom: 36px;
  transform: translateX(-50%) translateY(20px);
  background: var(--toast-bg);
  color: #fff;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 14px;
  line-height: 1.4;
  box-shadow: 0 10px 30px var(--shadow-color-strong);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 9999;
  max-width: calc(100vw - 32px);
  text-align: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

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

/* ========== 回到顶部 ========== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 36px;
  z-index: 90;
  width: 52px;
  height: 52px;
  border: none;
  border-radius: 50%;
  background: var(--surface);
  color: var(--green-deep);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  transform: translateY(20px) scale(0.9);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s var(--ease-bounce), opacity 0.3s ease, background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}

.back-to-top.show {
  transform: translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--green);
  color: #fff;
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px) scale(1.05);
}

.back-to-top:active {
  transform: translateY(0) scale(0.96);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ========== 稻穗飘落装饰 ========== */
#fallingLeaves {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}

#fallingLeaves .leaf {
  position: absolute;
  top: -40px;
  color: var(--leaf-color);
  opacity: 0;
  pointer-events: none;
  will-change: transform, opacity;
}

#fallingLeaves .leaf svg {
  width: 100%;
  height: auto;
  display: block;
}

@keyframes leafFallA {
  0%   { transform: translateY(-40px) translateX(0) rotate(0deg); opacity: 0; }
  5%   { opacity: 0.18; }
  25%  { transform: translateY(25vh) translateX(30px) rotate(45deg); }
  50%  { transform: translateY(50vh) translateX(-20px) rotate(-30deg); }
  75%  { transform: translateY(75vh) translateX(25px) rotate(60deg); opacity: 0.18; }
  95%  { opacity: 0.18; }
  100% { transform: translateY(calc(100vh + 40px)) translateX(0) rotate(90deg); opacity: 0; }
}

@keyframes leafFallB {
  0%   { transform: translateY(-40px) translateX(0) rotate(0deg); opacity: 0; }
  5%   { opacity: 0.14; }
  25%  { transform: translateY(25vh) translateX(-35px) rotate(-40deg); }
  50%  { transform: translateY(50vh) translateX(20px) rotate(35deg); }
  75%  { transform: translateY(75vh) translateX(-25px) rotate(-70deg); opacity: 0.14; }
  95%  { opacity: 0.14; }
  100% { transform: translateY(calc(100vh + 40px)) translateX(0) rotate(-100deg); opacity: 0; }
}

/* ========== 页脚 ========== */
.site-footer {
  position: relative;
  border-top: 1px solid var(--line);
  padding: 28px 0;
  background: var(--bg);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--ink-soft);
  flex-wrap: wrap;
}

.footer-bottom {
  position: relative;
  z-index: 1;
  text-align: center;
  margin-top: 12px;
}

.footer-icp {
  display: inline-block;
  font-size: 13px;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}

.footer-icp:hover {
  color: var(--green);
}

.admin-link {
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: 12px;
  border-bottom: 1px dotted var(--sage);
  flex-shrink: 0;
}

.admin-link:hover { color: var(--green-deep); }

/* ========== 后台管理 ========== */
.admin-shell {
  max-width: 640px;
  margin: 28px auto 80px;
  padding: 0 24px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 13px;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}

.back-link:hover { color: var(--green-deep); }

.admin-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.admin-card h2 {
  font-family: var(--font-serif);
  color: var(--green-deep);
  margin-top: 0;
  margin-bottom: 20px;
  font-size: 22px;
}

.admin-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.admin-tab {
  padding: 8px 14px;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.admin-tab:hover {
  background: var(--feedback-hover-bg);
  color: var(--ink);
}

.admin-tab.active {
  background: var(--green);
  color: #fff;
}

.admin-panel { display: none; }
.admin-panel.active { display: block; }

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.field input[type="password"],
.field select {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: var(--bg);
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input[type="password"]:focus,
.field select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(107, 158, 111, 0.12);
  outline: none;
}

.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius-sm);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  color: var(--ink-soft);
  font-size: 14px;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
  background: var(--bg);
}

.dropzone:hover,
.dropzone.drag {
  border-color: var(--green);
  color: var(--green-deep);
  background: var(--green-subtle);
}

.dropzone.has-file {
  border-style: solid;
  border-color: var(--green);
  background: var(--green-subtle);
  color: var(--green-deep);
}

.dropzone input { display: none; }

.dropzone-hint {
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 6px;
}

.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--green);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, transform 0.1s ease;
}

.btn:hover { background: var(--green-deep); }

.btn:active { transform: scale(0.98); }

.btn:disabled { background: var(--ink-muted); cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--ink-soft);
  border: 1.5px solid var(--line);
  font-weight: 500;
}

.btn-secondary:hover {
  background: var(--btn-secondary-hover);
  color: var(--ink);
}

.btn-danger {
  background: transparent;
  color: #C75656;
  border: 1.5px solid rgba(199, 86, 86, 0.35);
  font-weight: 500;
}

.btn-danger:hover {
  background: #FBEAEA;
  color: #A33E3E;
}

.btn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-row .btn {
  flex: 1;
  min-width: 140px;
}

.status-msg {
  margin-top: 16px;
  font-size: 13.5px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: none;
}

.status-msg.show { display: block; }
.status-msg.ok { background: var(--status-ok-bg); color: var(--green-deep); border: 1px solid var(--status-ok-border); }
.status-msg.err { background: var(--status-err-bg); color: #E07A7A; border: 1px solid var(--status-err-border); }

/* 登录遮罩 */
.login-mask {
  position: fixed;
  inset: 0;
  background: rgba(26, 29, 26, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.login-mask.show {
  opacity: 1;
  pointer-events: auto;
}

.login-box {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  transform: translateY(10px) scale(0.98);
  transition: transform 0.3s var(--ease-out);
}

.login-mask.show .login-box {
  transform: translateY(0) scale(1);
}

.login-box h2 {
  margin-top: 0;
  font-family: var(--font-serif);
  color: var(--green-deep);
}

/* 后台访问统计 */
.stats-wrap {
  margin-top: 20px;
}

.stats-summary {
  text-align: center;
  margin-bottom: 22px;
  padding: 18px;
  background: var(--green-subtle);
  border: 1px solid var(--tag-border);
  border-radius: var(--radius);
}

.stats-number {
  font-family: var(--font-mono);
  font-size: 40px;
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1;
}

.stats-label {
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 8px;
}

.visit-chart {
  width: 100%;
  height: 240px;
  margin-bottom: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.details-wrap {
  margin-top: 16px;
  max-height: 360px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.details-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.details-table th,
.details-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.details-table th {
  background: var(--table-header-bg);
  color: var(--green-deep);
  font-weight: 600;
  position: sticky;
  top: 0;
}

.details-table td {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 12px;
}

.details-table tbody tr:last-child td {
  border-bottom: none;
}

/* ========== 404 拦截页（server.js 内联）变量对齐 ========== */

/* ========== 响应式 ========== */
@media (max-width: 720px) {
  :root { --header-h: 60px; }

  .wrap {
    padding-left: 20px;
    padding-right: 20px;
  }

  .header-inner {
    gap: 10px;
  }

  .brand {
    font-size: 15px;
    gap: 8px;
  }

  .brand-mark {
    width: 24px;
    height: 24px;
  }

  .header-note {
    display: none;
  }

  .hero {
    padding: 28px 0 22px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 14.5px;
    margin-bottom: 22px;
  }

  .top-banner {
    padding: 12px 14px;
    margin-bottom: 20px;
  }

  .top-banner-text {
    font-size: 13px;
  }

  .search-box {
    padding: 13px 16px;
    border-radius: var(--radius);
  }

  .search-box input {
    font-size: 15px;
  }

  .chips {
    gap: 8px;
    margin-top: 14px;
  }

  .chip {
    padding: 8px 13px;
    font-size: 12px;
    border-radius: 10px;
  }

  .info-bar {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 22px;
  }

  .info-card {
    padding: 14px;
    border-radius: var(--radius-sm);
  }

  .info-card-label {
    font-size: 10px;
    padding: 3px 8px;
  }

  .info-card-list li {
    font-size: 12.5px;
    padding-left: 13px;
  }

  .countdown-int,
  .countdown-dot {
    font-size: 28px;
  }

  .countdown-decimal {
    font-size: 13px;
    min-width: 3.5ch;
    letter-spacing: 0.5px;
  }

  .results-wrap {
    padding-top: 4px;
    padding-bottom: 56px;
  }

  .results-meta {
    padding: 12px 2px 10px;
    margin-bottom: 14px;
    font-size: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .card-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .card {
    padding: 16px;
    border-radius: var(--radius-sm);
  }

  .card-q {
    font-size: 15px;
  }

  .card-a {
    font-size: 14px;
    line-height: 1.65;
  }

  .site-footer {
    padding: 22px 0;
  }

  .footer-inner {
    font-size: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .copy-toast {
    bottom: 28px;
    font-size: 13px;
    padding: 11px 16px;
  }

  .back-to-top {
    right: 16px;
    bottom: 24px;
    width: 46px;
    height: 46px;
  }

  .back-to-top svg {
    width: 20px;
    height: 20px;
  }

  .admin-shell {
    margin-top: 20px;
    padding: 0 20px;
  }

  .admin-card {
    padding: 22px;
  }

  .admin-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .btn-row {
    flex-direction: column;
  }

  .btn-row .btn {
    width: 100%;
  }

  .visit-chart {
    height: 200px;
  }

  #fallingLeaves > div:nth-child(n+9) {
    display: none;
  }
}

@media (max-width: 420px) {
  .wrap {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-subtitle {
    font-size: 14px;
  }

  .info-bar {
    gap: 10px;
  }

  .info-card {
    padding: 12px;
  }

  .countdown-int,
  .countdown-dot {
    font-size: 24px;
  }

  .search-box {
    padding: 12px 14px;
  }

  .chip {
    padding: 7px 11px;
    font-size: 11.5px;
  }
}

/* ========== 减少动画偏好 ========== */
@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;
  }

  .card {
    opacity: 1;
    transform: none;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
  }

  .card.is-visible {
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
  }
}