/* ==========================================================
   四季赛场 | Site Kit 全站共享样式
   主题：深绿×金色×四季点缀 · 展览画册式布局
   ========================================================== */
:root {
  --si-green-dark: #1B5E20;
  --si-green-deep: #0D3410;
  --si-green-mid: #2E7D32;
  --si-gold: #FFB300;
  --si-gold-soft: #FFD54F;
  --si-bg: #F7F5F0;
  --si-ink: #2D2D2D;
  --si-ink-soft: #5D5D5D;
  --si-spring: #F8BBD0;
  --si-summer: #4FC3F7;
  --si-autumn: #FF7043;
  --si-winter: #E0F7FA;
  --si-teal: #00BFA5;
  --si-purple: #7C4DFF;
  --si-border: rgba(45, 45, 45, 0.12);
  --si-glass: rgba(255, 255, 255, 0.72);
  --si-shadow: 0 20px 60px rgba(13, 52, 16, 0.14);
  --si-heading-font: Impact, 'Arial Black', 'Helvetica Neue', sans-serif;
  --si-body-font: 'Inter', system-ui, -apple-system, sans-serif;
  --si-container: 1240px;
  --si-radius: 2px;
  --si-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --si-transition-base: 0.3s var(--si-ease);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  font-family: var(--si-body-font);
  background: var(--si-bg);
  color: var(--si-ink);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--si-green-dark);
  text-decoration: none;
  transition: color 0.25s var(--si-ease);
}

a:hover {
  color: var(--si-spring);
}

ul, ol {
  list-style: none;
}

button {
  font-family: var(--si-body-font);
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--si-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: var(--si-green-dark);
  color: var(--si-bg);
}

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

@media (min-width: 768px) {
  .si-container {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (min-width: 1440px) {
  .si-container {
    padding-left: 60px;
    padding-right: 60px;
  }
}

/* ===================== 跳转链接 ===================== */
.si-skip-link {
  position: fixed;
  top: -80px;
  left: 20px;
  z-index: 10000;
  background: var(--si-green-dark);
  color: #fff;
  padding: 12px 24px;
  font-family: var(--si-body-font);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: var(--si-radius);
  box-shadow: 0 6px 24px rgba(27, 94, 32, 0.4);
  transition: top 0.3s var(--si-ease);
}

.si-skip-link:focus {
  top: 20px;
  color: #fff;
}

/* ===================== 页头结构 ===================== */
.si-site-header {
  background: var(--si-green-dark);
  color: #fff;
  position: relative;
  z-index: 100;
  box-shadow: 0 2px 0 rgba(255, 255, 255, 0.08);
}

/* 顶部信息条 */
.si-topbar {
  background: var(--si-green-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.si-topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  gap: 16px;
}

.si-season-icon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}

.si-season-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--si-gold);
  box-shadow: 0 0 12px rgba(255, 179, 0, 0.5);
}

.si-topbar-slogan {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 500;
  display: none;
}

.si-header-search {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 6px 16px;
  border-radius: 100px;
  transition: all 0.3s var(--si-ease);
}

.si-header-search:hover {
  background: var(--si-gold);
  color: var(--si-green-deep);
  border-color: var(--si-gold);
}

@media (min-width: 640px) {
  .si-topbar-slogan {
    display: block;
  }
}

/* 报头区域 */
.si-masthead {
  padding: 42px 0 30px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.si-masthead::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(135deg, transparent 0%, transparent 46%, rgba(255, 179, 0, 0.06) 47%, transparent 48%),
    linear-gradient(45deg, transparent 0%, transparent 46%, rgba(255, 255, 255, 0.04) 47%, transparent 48%);
  background-size: 64px 64px;
  pointer-events: none;
}

.si-masthead-inner {
  position: relative;
  z-index: 2;
}

.si-masthead-kicker {
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 600;
  margin-bottom: 12px;
}

.si-brand-mark {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: opacity 0.3s var(--si-ease);
}

.si-brand-mark:hover {
  opacity: 0.88;
}

.si-brand-cn {
  font-family: var(--si-heading-font);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
  text-transform: uppercase;
}

.si-brand-en {
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--si-gold);
  font-weight: 700;
}

.si-masthead-tagline {
  margin-top: 14px;
  font-size: 0.84rem;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.6);
  font-weight: 400;
}

@media (min-width: 768px) {
  .si-masthead {
    padding: 58px 0 38px;
  }
}

/* 导航条 */
.si-nav-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(90deg, var(--si-green-dark) 0%, var(--si-green-mid) 50%, var(--si-green-dark) 100%);
}

.si-nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
}

.si-nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 10px 18px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--si-radius);
  min-width: 96px;
  transition: all 0.3s var(--si-ease);
}

.si-nav-toggle:hover {
  border-color: var(--si-gold);
}

.si-nav-toggle-label {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.si-nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: all 0.3s var(--si-ease);
}

.si-nav-toggle[aria-expanded="true"] .si-nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.si-nav-toggle[aria-expanded="true"] .si-nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.si-nav-toggle[aria-expanded="true"] .si-nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.si-nav {
  display: none;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  width: 100%;
  background: var(--si-green-deep);
  flex-direction: column;
  gap: 0;
  z-index: 50;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.28);
  border-bottom: 2px solid var(--si-gold);
}

.si-nav.is-open {
  display: flex;
}

.si-nav li {
  width: 100%;
}

.si-nav a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s var(--si-ease);
}

.si-nav a:hover {
  background: rgba(255, 179, 0, 0.12);
  color: var(--si-gold-soft);
  padding-left: 32px;
}

.si-nav a[aria-current="page"] {
  color: var(--si-gold);
  background: linear-gradient(90deg, transparent, rgba(255, 179, 0, 0.1), transparent);
  box-shadow: inset 0 -2px 0 var(--si-gold);
}

@media (min-width: 960px) {
  .si-nav-toggle {
    display: none;
  }

  .si-nav {
    display: flex;
    position: static;
    flex-direction: row;
    justify-content: center;
    background: transparent;
    box-shadow: none;
    border-bottom: none;
    width: auto;
  }

  .si-nav li {
    width: auto;
  }

  .si-nav a {
    border-bottom: none;
    padding: 18px 20px;
    font-size: 0.82rem;
    position: relative;
  }

  .si-nav a::after {
    content: '';
    position: absolute;
    left: 20px;
    right: 20px;
    bottom: 10px;
    height: 2px;
    background: var(--si-gold);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.35s var(--si-ease);
  }

  .si-nav a:hover {
    background: transparent;
    padding-left: 20px;
    color: var(--si-gold-soft);
  }

  .si-nav a:hover::after,
  .si-nav a[aria-current="page"]::after {
    transform: scaleX(1);
  }

  .si-nav a[aria-current="page"] {
    background: transparent;
    box-shadow: none;
  }
}

/* ===================== 页脚 ===================== */
.si-footer {
  background: var(--si-green-deep);
  color: rgba(255, 255, 255, 0.72);
  margin-top: 120px;
  position: relative;
  overflow: hidden;
}

.si-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(120deg, transparent 0%, transparent 48%, rgba(255, 179, 0, 0.03) 49%, transparent 50%),
    linear-gradient(60deg, transparent 0%, transparent 48%, rgba(255, 179, 0, 0.02) 49%, transparent 50%);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
}

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

.si-footer-season-bar {
  display: flex;
  height: 4px;
  background: transparent;
}

.si-season-seg {
  flex: 1;
  display: block;
  height: 100%;
}

.si-season-spring { background: var(--si-spring); }
.si-season-summer { background: var(--si-summer); }
.si-season-autumn { background: var(--si-autumn); }
.si-season-winter { background: var(--si-winter); }

.si-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
  padding: 60px 0 48px;
}

@media (min-width: 768px) {
  .si-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 52px 48px;
    padding: 72px 0 56px;
  }
}

@media (min-width: 1100px) {
  .si-footer-grid {
    grid-template-columns: 2fr 1fr 1.2fr 1.4fr;
    gap: 56px;
    padding: 88px 0 64px;
  }
}

.si-footer-logo {
  font-family: var(--si-heading-font);
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.06em;
  line-height: 1;
  margin-bottom: 6px;
}

.si-footer-tagline {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--si-gold);
  font-weight: 600;
  margin-bottom: 20px;
}

.si-footer-trust {
  font-size: 0.82rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.56);
  max-width: 480px;
}

.si-footer-heading {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
  margin-bottom: 18px;
  padding-bottom: 8px;
  border-bottom: 2px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.si-footer-heading::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--si-gold);
}

.si-footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}

.si-footer-link {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s var(--si-ease);
}

.si-footer-link::before {
  content: '›';
  color: var(--si-gold);
  font-weight: 800;
  transition: transform 0.25s var(--si-ease);
}

.si-footer-link:hover {
  color: var(--si-gold-soft);
  transform: translateX(4px);
}

.si-footer-text {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
  display: block;
  line-height: 1.6;
}

.si-footer-note {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.3);
  margin-top: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.si-footer-verify {
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.64);
  padding: 8px 14px;
  border-left: 2px solid var(--si-teal);
  background: rgba(0, 191, 165, 0.06);
  margin-bottom: 8px;
  line-height: 1.5;
}

.si-footer-email-large {
  font-family: var(--si-heading-font);
  font-size: 1.2rem;
  letter-spacing: 0.04em;
  color: var(--si-gold-soft);
  margin-top: 18px;
  word-break: break-all;
}

.si-footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0 32px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.36);
  text-align: center;
}

@media (min-width: 768px) {
  .si-footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

.si-back-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 100px;
  transition: all 0.3s var(--si-ease);
}

.si-back-top:hover {
  color: var(--si-green-deep);
  background: var(--si-gold);
  border-color: var(--si-gold);
}

/* ===================== 通用按钮 ===================== */
.si-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--si-radius);
  transition: all 0.3s var(--si-ease);
  text-align: center;
  min-height: 48px;
  line-height: 1;
}

.si-btn-gold {
  background: var(--si-gold);
  color: var(--si-green-deep);
  box-shadow: 0 6px 24px rgba(255, 179, 0, 0.28);
}

.si-btn-gold:hover {
  background: var(--si-gold-soft);
  color: var(--si-green-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 179, 0, 0.36);
}

.si-btn-outline {
  border: 1px solid var(--si-green-dark);
  color: var(--si-green-dark);
  background: transparent;
}

.si-btn-outline:hover {
  background: var(--si-green-dark);
  color: #fff;
  transform: translateY(-2px);
}

/* ===================== 区块标题体系 ===================== */
.si-section-title {
  font-family: var(--si-heading-font);
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--si-ink);
  text-transform: uppercase;
}

.si-section-index {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--si-teal);
  margin-bottom: 16px;
}

.si-section-index::after {
  content: '—';
  color: var(--si-gold);
  letter-spacing: 0.4em;
}

/* ===================== 玻璃数据卡片 ===================== */
.si-card {
  position: relative;
  background: var(--si-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 4px;
  padding: 28px 24px;
  box-shadow: 0 10px 40px rgba(13, 52, 16, 0.06);
  transition: all 0.35s var(--si-ease);
  overflow: hidden;
}

.si-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--si-teal);
}

.si-card:hover {
  transform: translateY(-4px) rotateZ(-0.4deg);
  box-shadow: var(--si-shadow);
}

.si-card-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--si-teal), var(--si-purple));
}

/* ===================== 数据表格 ===================== */
.si-data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(13, 52, 16, 0.08);
}

.si-data-table th {
  background: var(--si-green-dark);
  color: #fff;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 800;
  padding: 14px 18px;
  text-align: left;
}

.si-data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(45, 45, 45, 0.06);
  font-size: 0.9rem;
}

.si-data-table tbody tr {
  transition: background 0.2s var(--si-ease);
}

.si-data-table tbody tr:hover {
  background: rgba(79, 195, 247, 0.12);
}

/* ===================== 分节线与装饰 ===================== */
.si-divider {
  height: 2px;
  background: linear-gradient(90deg, var(--si-gold) 0%, var(--si-teal) 45%, var(--si-purple) 70%, var(--si-summer) 100%);
  position: relative;
  border-radius: 2px;
  margin: 60px 0;
  transform: skewX(-4deg);
}

.si-season-band {
  display: flex;
  gap: 0;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
}

.si-season-band span {
  flex: 1;
}

/* ===================== 媒体容器 ===================== */
.si-media-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--si-ink);
  overflow: hidden;
  border-radius: 4px;
}

.si-media-frame::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, transparent 0%, transparent 40%, rgba(255, 179, 0, 0.15) 41%, transparent 42%, transparent 55%, rgba(255, 255, 255, 0.08) 56%, transparent 57%);
  pointer-events: none;
}

.si-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.si-media-frame-gold {
  border: 1px solid rgba(255, 179, 0, 0.45);
}

.si-media-frame-teal {
  border: 1px solid rgba(0, 191, 165, 0.45);
}

/* ===================== 时间轴 ===================== */
.si-timeline-line {
  position: relative;
  padding-left: 24px;
}

.si-timeline-line::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--si-teal) 0%, var(--si-gold) 60%, var(--si-purple) 100%);
  border-radius: 2px;
}

/* ===================== 滚动显现动画 ===================== */
.si-reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--si-ease), transform 0.9s var(--si-ease);
  will-change: opacity, transform;
}

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

.si-reveal[data-anim="clip"] {
  opacity: 0;
  transform: scaleY(0.02) translateY(30px);
  transform-origin: top center;
}

.si-reveal[data-anim="clip"].is-visible {
  transform: scaleY(1) translateY(0);
}

.si-reveal[data-delay="1"] { transition-delay: 0.1s; }
.si-reveal[data-delay="2"] { transition-delay: 0.2s; }
.si-reveal[data-delay="3"] { transition-delay: 0.3s; }
.si-reveal[data-delay="4"] { transition-delay: 0.4s; }
.si-reveal[data-delay="5"] { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .si-reveal,
  .si-reveal[data-anim="clip"] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===================== 页面排版基础 ===================== */
.si-main-content {
  min-height: 60vh;
  padding-top: 40px;
}

.si-page-header {
  padding: 60px 0 40px;
  position: relative;
}

.si-page-title {
  font-family: var(--si-heading-font);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  font-weight: 900;
  color: var(--si-ink);
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.si-page-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--si-gold), var(--si-teal));
  transform: skewX(-20deg);
}

.si-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--si-ink-soft);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.si-breadcrumb a {
  color: var(--si-green-dark);
  font-weight: 600;
}

.si-breadcrumb a:hover {
  color: var(--si-autumn);
}

.si-breadcrumb-sep {
  color: rgba(45, 45, 45, 0.3);
}

/* ===================== 网格通用 ===================== */
.si-grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.si-grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.si-grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .si-grid-2 {
    grid-template-columns: 1fr 1fr;
  }

  .si-grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 960px) {
  .si-grid-2 {
    grid-template-columns: 1.2fr 1fr;
  }

  .si-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .si-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* ===================== 季节主题强调色 ===================== */
.si-season-spring-text { color: var(--si-spring) !important; }
.si-season-summer-text { color: var(--si-summer) !important; }
.si-season-autumn-text { color: var(--si-autumn) !important; }
.si-season-winter-text { color: var(--si-winter) !important; }

.si-season-spring-bg { background: var(--si-spring) !important; }
.si-season-summer-bg { background: var(--si-summer) !important; }
.si-season-autumn-bg { background: var(--si-autumn) !important; }
.si-season-winter-bg { background: var(--si-winter) !important; }

/* 季节渐变条 */
.si-season-grad-spring {
  background: linear-gradient(90deg, #F8BBD0, #E1BEE7) !important;
}

.si-season-grad-summer {
  background: linear-gradient(90deg, #4FC3F7, #00BFA5) !important;
}

.si-season-grad-autumn {
  background: linear-gradient(90deg, #FF7043, #FFB300) !important;
}

.si-season-grad-winter {
  background: linear-gradient(90deg, #E0F7FA, #B2EBF2) !important;
}