/* ========================================
   深圳市广美设计装饰工程有限公司 - 官网
   CSS 变量系统 & 响应式布局
   ======================================== */

:root {
  /* ========== 颜色变量 ========== */
  --color-primary: #e74c3c;
  --color-secondary: #9b59b6;
  --color-accent: #f1c40f;
  --color-background: #fdf6f0;
  --color-surface: #ffffff;
  --color-text-dark: #2b1a2b;
  --color-text-light: #ffffff;
  --color-muted: #7d6887;
  --color-border: rgba(231, 76, 60, 0.18);
  --color-success: #27ae60;
  --color-warning: #f39c12;
  --color-danger: #c0392b;
  --color-info: #16a085;
  --gradient-hero: linear-gradient(135deg, rgba(231, 76, 60, 0.92) 0%, rgba(155, 89, 182, 0.9) 55%, rgba(241, 196, 15, 0.85) 100%);
  --gradient-card: linear-gradient(145deg, rgba(231, 76, 60, 0.12) 0%, rgba(155, 89, 182, 0.08) 50%, rgba(241, 196, 15, 0.12) 100%);
  --gradient-overlay: linear-gradient(180deg, rgba(43, 26, 43, 0.8) 0%, rgba(43, 26, 43, 0.4) 100%);
  --glass-bg: rgba(255, 255, 255, 0.12);

  /* ========== 字体变量 ========== */
  --font-primary: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
  --font-heading: "Arial", "Microsoft YaHei", sans-serif;
  --font-size-base: 16px;
  --font-size-sm: 14px;
  --font-size-lg: 18px;
  --font-size-h1: 2.5rem;
  --font-size-h2: 2rem;
  --font-size-h3: 1.75rem;
  --font-size-h4: 1.5rem;
  --font-size-h5: 1.25rem;
  --font-size-h6: 1rem;
  --font-weight-normal: 400;
  --font-weight-bold: 700;

  /* ========== 间距变量 ========== */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;

  /* ========== 圆角变量 ========== */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;

  /* ========== 阴影变量 ========== */
  --box-shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --box-shadow-md: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --box-shadow-xl: 0 1rem 2rem rgba(0, 0, 0, 0.2);

  /* ========== 过渡效果 ========== */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;

  /* ========== 响应式断点 ========== */
  --breakpoint-xs: 0;
  --breakpoint-sm: 576px;
  --breakpoint-md: 768px;
  --breakpoint-lg: 992px;
  --breakpoint-xl: 1200px;
  --breakpoint-xxl: 1400px;
}

/* ========================================
   全局样式
   ======================================== */

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

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-background);
}

main {
  margin-top: 80px;
}

/* ========================================
   排版样式
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

h4 {
  font-size: var(--font-size-h4);
}

h5 {
  font-size: var(--font-size-h5);
}

h6 {
  font-size: var(--font-size-h6);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ========================================
   容器与布局
   ======================================== */

.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
}

/* Grid 布局 */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 768px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   主题区块与组件
   ======================================== */

.hero {
  position: relative;
  padding: calc(var(--spacing-xxl) * 1.4) 0 var(--spacing-xxl);
  background: var(--gradient-hero);
  color: var(--color-text-light);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0) 55%);
  mix-blend-mode: screen;
}

.hero::after {
  content: "";
  position: absolute;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, rgba(231, 76, 60, 0) 65%);
  bottom: -240px;
  right: -160px;
  pointer-events: none;
}

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

.hero__content {
  max-width: 760px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

.hero__title {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.1;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 12px 25px rgba(0, 0, 0, 0.25);
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  align-items: center;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xxl);
}

.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.hero__meta-number {
  font-size: 2.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-light);
}

.hero__meta-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.02em;
}

.section {
  padding: var(--spacing-xxl) 0;
}

.section--tight {
  padding: var(--spacing-xl) 0;
}

.section--alt {
  background: linear-gradient(160deg, rgba(231, 76, 60, 0.05) 0%, rgba(155, 89, 182, 0.06) 55%, rgba(241, 196, 15, 0.05) 100%);
}

.section--overlay {
  position: relative;
  overflow: hidden;
}

.section--overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  opacity: 0.85;
}

.section--overlay > .container {
  position: relative;
  z-index: 1;
}

.page-hero {
  position: relative;
  padding: calc(var(--spacing-xxl) * 1.1) 0 var(--spacing-xl);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--color-text-light);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(43, 26, 43, 0.88) 0%, rgba(43, 26, 43, 0.6) 65%, rgba(43, 26, 43, 0.4) 100%);
}

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

.page-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(241, 196, 15, 0.28);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: var(--font-size-sm);
}

.page-hero__title {
  font-size: clamp(2.2rem, 4vw, 3rem);
  margin: var(--spacing-md) 0;
  color: var(--color-text-light);
}

.page-hero__subtitle {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
}

.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.page-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.page-hero__meta-label {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.page-hero__meta-value {
  font-size: 1.6rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-light);
}

.section__header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto var(--spacing-xl);
}

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(231, 76, 60, 0.1);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.section__title {
  font-size: clamp(2rem, 3vw, 2.6rem);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  font-size: 1.125rem;
  color: var(--color-muted);
}

.section__actions {
  margin-top: var(--spacing-xl);
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.highlight-card {
  position: relative;
  border-radius: var(--border-radius-lg);
  background: var(--gradient-card);
  padding: var(--spacing-xl);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
  color: var(--color-text-dark);
}

.highlight-card::after {
  content: "";
  position: absolute;
  inset: -40px;
  background: linear-gradient(45deg, rgba(231, 76, 60, 0.08) 0%, rgba(155, 89, 182, 0.08) 100%);
  z-index: 0;
}

.highlight-card > * {
  position: relative;
  z-index: 1;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-lg);
}

.stat-card {
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--box-shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(14px);
  text-align: left;
}

.stat-card__value {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.stat-card__label {
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(231, 76, 60, 0.12);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.chip--ghost {
  background: transparent;
  border: 1px dashed rgba(231, 76, 60, 0.4);
}

.works-wall {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.works-wall__item {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.works-wall__item img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  filter: saturate(1.12);
  transition: transform var(--transition-normal);
}

.works-wall__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, 0.55) 100%);
}

.works-wall__item.active,
.works-wall__item:hover {
  transform: translateY(-6px);
  box-shadow: var(--box-shadow-lg);
}

.works-wall__item:hover img {
  transform: scale(1.05);
}

.works-wall__label {
  position: absolute;
  left: var(--spacing-lg);
  bottom: var(--spacing-lg);
  color: var(--color-text-light);
  z-index: 1;
}

.works-wall__category {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.75);
}

.trend-card {
  position: relative;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(16px);
  box-shadow: var(--box-shadow-md);
  min-height: 220px;
}

.trend-card__badge {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.trend-card__title {
  font-size: 1.4rem;
  margin: var(--spacing-md) 0 var(--spacing-sm);
  color: var(--color-text-dark);
}

.trend-card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.award-card {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
  background: var(--color-surface);
}

.award-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.award-card__body {
  padding: var(--spacing-lg);
}

.award-card__title {
  font-size: 1.4rem;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.case-card__meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
}

.case-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.case-card__stat {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(231, 76, 60, 0.12);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.case-card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.case-card__link {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
  text-decoration: underline;
}

.quote-panel {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-lg);
  border-left: 4px solid var(--color-secondary);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.filter-button {
  border: 1px solid rgba(155, 89, 182, 0.4);
  background: rgba(155, 89, 182, 0.12);
  color: var(--color-secondary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-button:hover,
.filter-button.active {
  background: var(--color-secondary);
  color: var(--color-text-light);
  border-color: transparent;
}

.search-panel {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}

.search-panel input[type="search"] {
  flex: 1 1 320px;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: 999px;
  border: 1px solid rgba(43, 26, 43, 0.12);
  background: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-base);
  transition: box-shadow var(--transition-fast), border var(--transition-fast);
}

.search-panel input[type="search"]:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(155, 89, 182, 0.18);
}

.drag-lab {
  display: grid;
  gap: var(--spacing-lg);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-lg);
  border: 1px solid rgba(155, 89, 182, 0.2);
}

.drag-items {
  display: grid;
  gap: var(--spacing-sm);
}

.drag-item {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  background: rgba(231, 76, 60, 0.12);
  color: var(--color-primary);
  cursor: grab;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.drag-item:active {
  cursor: grabbing;
}

.drag-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--box-shadow-md);
}

.drop-zone {
  min-height: 220px;
  border: 2px dashed rgba(155, 89, 182, 0.4);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--color-muted);
  transition: border var(--transition-fast), background var(--transition-fast);
}

.drop-zone.is-active {
  border-color: var(--color-secondary);
  background: rgba(155, 89, 182, 0.08);
  color: var(--color-text-dark);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-xl);
  display: grid;
  gap: var(--spacing-xl);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 12px;
  width: 2px;
  background: linear-gradient(180deg, rgba(231, 76, 60, 0.65) 0%, rgba(155, 89, 182, 0.65) 100%);
}

.timeline-item {
  position: relative;
  padding-left: var(--spacing-lg);
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: -28px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-secondary);
  box-shadow: 0 0 0 6px rgba(155, 89, 182, 0.15);
}

.timeline-item__time {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.timeline-item__title {
  font-size: 1.3rem;
  margin: var(--spacing-sm) 0;
  color: var(--color-text-dark);
}

.testimonial-card {
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  border: 1px solid rgba(241, 196, 15, 0.25);
}

.testimonial-card__quote {
  font-size: 1.15rem;
  color: var(--color-text-dark);
  line-height: 1.7;
}

.testimonial-card__author {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.badge-soft {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(241, 196, 15, 0.2);
  color: #a66f00;
  font-size: var(--font-size-sm);
}

.cta-panel {
  border-radius: var(--border-radius-lg);
  background: linear-gradient(120deg, rgba(231, 76, 60, 0.92) 0%, rgba(155, 89, 182, 0.92) 80%);
  color: var(--color-text-light);
  padding: var(--spacing-xl);
  box-shadow: var(--box-shadow-lg);
}

.cta-panel__form {
  margin-top: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.cta-panel__form .form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
}

.quick-quote__result {
  border-radius: var(--border-radius-lg);
  background: rgba(0, 0, 0, 0.2);
  padding: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-xs);
  align-content: start;
}

.quick-quote__value {
  font-size: 2.2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-light);
}

.quick-quote__summary {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
}

.quick-quote__note {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.72);
}

.resource-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.resource-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(231, 76, 60, 0.12);
  color: var(--color-primary);
  font-size: 1.5rem;
}

.resource-card__title {
  font-size: 1.25rem;
  color: var(--color-text-dark);
}

.resource-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.media-card {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--box-shadow-md);
  display: flex;
  flex-direction: column;
}

.media-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.media-card__body {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.media-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

.media-card__title {
  font-size: 1.3rem;
  color: var(--color-text-dark);
}

.media-card__excerpt {
  color: var(--color-muted);
}

.split-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  align-items: center;
}

.split-layout__visual {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
}

.split-layout__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-layout__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, 0.4) 100%);
}

.split-layout__content {
  display: grid;
  gap: var(--spacing-md);
}

.list-creative {
  list-style: none;
  display: grid;
  gap: var(--spacing-sm);
  padding-left: 0;
}

.list-creative li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  background: rgba(43, 26, 43, 0.06);
  color: var(--color-text-dark);
}

.badge-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.badge-list .chip {
  margin-bottom: 0;
}

.news-ticker {
  display: flex;
  gap: var(--spacing-xl);
  overflow-x: auto;
  padding: var(--spacing-md) 0;
}

.news-ticker__item {
  min-width: 220px;
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
}

.form-note {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tag-cloud a {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(155, 89, 182, 0.15);
  color: var(--color-secondary);
  font-size: var(--font-size-sm);
}

.tag-cloud a:hover {
  background: var(--color-secondary);
  color: var(--color-text-light);
}

.glass-panel {
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: var(--box-shadow-md);
  backdrop-filter: blur(16px);
  padding: var(--spacing-xl);
}

.grid-lined {
  background-image: linear-gradient(90deg, rgba(231, 76, 60, 0.05) 1px, transparent 1px), linear-gradient(rgba(231, 76, 60, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
}

.floating-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.palette-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-sm);
}

.palette-list__item {
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--box-shadow-sm);
  text-align: center;
}

.palette-list__swatch {
  width: 100%;
  height: 70px;
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--spacing-xs);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

.info-grid__item {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
}

.community-pulse {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.pulse-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  border-left: 4px solid rgba(231, 76, 60, 0.45);
}

.pulse-card--purple {
  border-left-color: rgba(155, 89, 182, 0.45);
}

.pulse-card--gold {
  border-left-color: rgba(241, 196, 15, 0.45);
}

.simple-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
}

.simple-table thead {
  background: rgba(231, 76, 60, 0.08);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.simple-table th,
.simple-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid rgba(43, 26, 43, 0.08);
  color: var(--color-text-dark);
}

.simple-table tbody tr:hover {
  background: rgba(155, 89, 182, 0.06);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.news-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.news-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.news-card__title {
  font-size: 1.3rem;
  color: var(--color-text-dark);
}

.news-card__excerpt {
  color: var(--color-muted);
}

.faq-accordion {
  display: grid;
  gap: var(--spacing-md);
}

.faq-item {
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--box-shadow-md);
  padding: var(--spacing-lg);
}

.faq-question {
  font-size: 1.2rem;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.faq-answer {
  color: var(--color-muted);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.contact-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
}

.contact-card__title {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-md);
}

.map-embed {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
}

.legal-section {
  border-radius: var(--border-radius-lg);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--box-shadow-md);
  padding: var(--spacing-xl);
  display: grid;
  gap: var(--spacing-md);
}

.legal-section h2 {
  font-size: 1.5rem;
  color: var(--color-text-dark);
}

.legal-section p,
.legal-section li {
  color: var(--color-muted);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-lg);
}

.process-step {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  border-top: 4px solid rgba(231, 76, 60, 0.45);
}

.process-step__index {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
}

.process-step__title {
  margin: var(--spacing-sm) 0;
  color: var(--color-text-dark);
  font-size: 1.2rem;
}

.process-step__desc {
  color: var(--color-muted);
}

.gallery-grid {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-md);
}

.masonry {
  column-count: 3;
  column-gap: var(--spacing-md);
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
}

.masonry-item img {
  width: 100%;
  display: block;
}

.insight-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  display: grid;
  gap: var(--spacing-sm);
}

.insight-card__tag {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.insight-card__title {
  font-size: 1.4rem;
  color: var(--color-text-dark);
}

.insight-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.insight-card__summary {
  color: var(--color-muted);
  line-height: 1.8;
}

.competition-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  border-left: 4px solid rgba(241, 196, 15, 0.45);
  display: grid;
  gap: var(--spacing-sm);
}

.competition-card__deadline {
  font-size: var(--font-size-sm);
  color: var(--color-secondary);
  letter-spacing: 0.08em;
}

.competition-card__title {
  font-size: 1.3rem;
  color: var(--color-text-dark);
}

.competition-card__reward {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.resource-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: var(--spacing-sm);
}

.resource-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-md);
  background: rgba(241, 196, 15, 0.12);
  color: #a66f00;
}

.quote-block {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--color-text-dark);
  border-left: 4px solid rgba(231, 76, 60, 0.6);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.dataset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
}

.dataset-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  display: grid;
  gap: var(--spacing-sm);
}

.dataset-card__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.badge-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.layout-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(231, 76, 60, 0.12);
  color: var(--color-primary);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-lg);
}

.module-card {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
  display: grid;
  gap: var(--spacing-sm);
}

.module-card__index {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.module-card__title {
  font-size: 1.3rem;
  color: var(--color-text-dark);
}

.module-card__desc {
  color: var(--color-muted);
}

.project-summary {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-lg);
  display: grid;
  gap: var(--spacing-lg);
}

.project-summary__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.project-summary__meta-item {
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 999px;
  background: rgba(231, 76, 60, 0.1);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
}

.grid-feature {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.grid-feature__item {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-md);
}

.grid-feature__title {
  font-size: 1.2rem;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.grid-feature__desc {
  color: var(--color-muted);
}

.news-hero {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: linear-gradient(120deg, rgba(231, 76, 60, 0.85) 0%, rgba(155, 89, 182, 0.85) 100%);
  color: var(--color-text-light);
  box-shadow: var(--box-shadow-lg);
}

.news-hero__title {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.news-hero__meta {
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
}

.news-hero__excerpt {
  margin-top: var(--spacing-md);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
}

.media-list {
  display: grid;
  gap: var(--spacing-lg);
}

.media-item {
  display: grid;
  gap: var(--spacing-md);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-items: center;
}

.media-item__image {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-md);
}

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

.media-item__content {
  display: grid;
  gap: var(--spacing-sm);
}

.media-item__meta {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.media-item__title {
  font-size: 1.5rem;
  color: var(--color-text-dark);
}

.media-item__desc {
  color: var(--color-muted);
}

.contact-form {
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--box-shadow-lg);
  display: grid;
  gap: var(--spacing-lg);
}

.contact-form__group {
  display: grid;
  gap: var(--spacing-sm);
}

.contact-form__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-md);
}

.contact-form button {
  justify-self: flex-start;
}

.badge-stack {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.badge-stack span {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  background: rgba(241, 196, 15, 0.18);
  color: #a66f00;
  font-size: var(--font-size-sm);
}

.helper-text {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

.notification {
  position: fixed;
  left: 50%;
  bottom: var(--spacing-xl);
  transform: translateX(-50%) translateY(20px);
  background: rgba(43, 26, 43, 0.9);
  color: var(--color-text-light);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-lg);
  font-size: var(--font-size-sm);
  z-index: 2000;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

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

.notification-info {
  background: rgba(43, 26, 43, 0.9);
}

.notification-success {
  background: rgba(39, 174, 96, 0.9);
}

.notification-warning {
  background: rgba(243, 156, 18, 0.9);
  color: #2c1a2b;
}

.notification-danger {
  background: rgba(192, 57, 43, 0.9);
}

.journey-map {
  display: grid;
  gap: var(--spacing-xl);
}

.journey-stage {
  display: grid;
  gap: var(--spacing-sm);
  border-left: 4px solid rgba(231, 76, 60, 0.45);
  padding-left: var(--spacing-lg);
}

.journey-stage__title {
  font-size: 1.4rem;
  color: var(--color-text-dark);
}

.journey-stage__desc {
  color: var(--color-muted);
}

.journey-stage__actions {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.floating-badge {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.4);
  color: var(--color-text-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.video-banner {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--box-shadow-lg);
}

.video-banner video,
.video-banner img {
  width: 100%;
  display: block;
}

.video-banner__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.7) 100%);
  color: var(--color-text-light);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-xl);
}

.video-banner__title {
  font-size: 2rem;
  margin-bottom: var(--spacing-sm);
}

.video-banner__meta {
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
  }

  .hero__meta {
    gap: var(--spacing-lg);
  }

  .stat-grid,
  .awards-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .masonry {
    column-count: 1;
  }

  .split-layout,
  .media-item {
    grid-template-columns: 1fr;
  }
}

/* Flexbox 布局 */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

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

.flex-wrap {
  flex-wrap: wrap;
}

.flex-gap {
  gap: var(--spacing-md);
}

/* ========================================
   按钮样式
   ======================================== */

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  text-align: center;
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-primary:hover {
  background-color: #c0392b;
  box-shadow: var(--box-shadow-lg);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-light);
}

.btn-secondary:hover {
  background-color: #8e44ad;
  box-shadow: var(--box-shadow-lg);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text-dark);
}

.btn-accent:hover {
  background-color: #d4ac0d;
  box-shadow: var(--box-shadow-lg);
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ========================================
   卡片样式
   ======================================== */

.card {
  background-color: var(--color-surface);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--box-shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--box-shadow-lg);
  transform: translateY(-5px);
}

.card-header {
  padding: var(--spacing-lg);
  background-color: var(--color-primary);
  color: var(--color-text-light);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  background-color: rgba(43, 26, 43, 0.05);
  border-top: 1px solid rgba(43, 26, 43, 0.08);
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

/* ========================================
   表单样式
   ======================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
}

input[type="text"],
input[type="email"],
input[type="phone"],
input[type="date"],
textarea,
select {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-base);
  font-family: var(--font-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-text-light);
  color: var(--color-text-dark);
  transition: border-color var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="phone"]:focus,
input[type="date"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(155, 89, 182, 0.18);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ========================================
   导航栏样式
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--box-shadow-md);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(231, 76, 60, 0.12);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-xl) var(--spacing-md) var(--spacing-md);
  max-width: 100%;
  margin: 0;
  width: 100%;
  flex-wrap: nowrap;
}

.navbar-brand {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
  display: inline-block;
}

.navbar-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
  flex-wrap: nowrap;
}

.navbar-item {
  position: relative;
}

.navbar-link {
  color: var(--color-text-dark);
  text-decoration: none;
  font-weight: var(--font-weight-normal);
  transition: color var(--transition-fast);
  padding: var(--spacing-sm) 0;
}

.navbar-link:hover {
  color: var(--color-secondary);
}

.navbar-link.active {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* 二级下拉菜单 */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: rgba(255, 255, 255, 0.95);
  min-width: 200px;
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow-lg);
  border: 1px solid rgba(231, 76, 60, 0.1);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  margin-top: var(--spacing-sm);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  padding: var(--spacing-sm) var(--spacing-lg);
  color: var(--color-text-dark);
  text-decoration: none;
  display: block;
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-background);
  color: var(--color-secondary);
  padding-left: var(--spacing-xl);
}

/* 移动菜单切换 */
.navbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  cursor: pointer;
}

@media (max-width: 768px) {
  .navbar-brand {
    font-size: var(--font-size-sm);
  }

  .navbar-toggle {
    display: block;
  }

  .navbar-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--color-text-light);
    border-top: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
  }

  .navbar-menu.active {
    max-height: 500px;
  }

  .navbar-item {
    width: 100%;
  }

  .navbar-link {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
  }

  .dropdown-menu {
    position: static;
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    box-shadow: none;
    transform: none;
    margin-top: 0;
  }

  .dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    max-height: 300px;
  }
}

/* ========================================
   页脚样式
   ======================================== */

footer {
  position: relative;
  background: linear-gradient(145deg, #2b1a2b 0%, #4c2260 55%, #2b1a2b 100%);
  color: var(--color-text-light);
  padding: var(--spacing-xxl) var(--spacing-lg);
  margin-top: var(--spacing-xxl);
  overflow: hidden;
}

footer::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(241, 196, 15, 0.35) 0%, rgba(241, 196, 15, 0) 70%);
  top: -120px;
  right: -80px;
  pointer-events: none;
}

footer::after {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(231, 76, 60, 0.28) 0%, rgba(231, 76, 60, 0) 70%);
  bottom: -100px;
  left: -60px;
  pointer-events: none;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

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

.footer-section h3 {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  color: var(--color-text-light);
}

.footer-section a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: var(--font-size-sm);
}

/* ========================================
   其他工具类
   ======================================== */

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-left {
  text-align: left;
}

.text-primary {
  color: var(--color-primary);
}

.text-secondary {
  color: var(--color-secondary);
}

.text-accent {
  color: var(--color-accent);
}

.text-light {
  color: var(--color-text-light);
}

.bg-primary {
  background-color: var(--color-primary);
}

.bg-secondary {
  background-color: var(--color-secondary);
}

.bg-accent {
  background-color: var(--color-accent);
}

.bg-light {
  background-color: var(--color-background);
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

.rounded {
  border-radius: var(--border-radius-md);
}

.rounded-lg {
  border-radius: var(--border-radius-lg);
}

.shadow {
  box-shadow: var(--box-shadow-md);
}

.shadow-lg {
  box-shadow: var(--box-shadow-lg);
}

/* ========================================
   响应式图片
   ======================================== */

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

.img-fluid {
  width: 100%;
  height: auto;
}

.img-thumbnail {
  padding: var(--spacing-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
}

/* ========================================
   响应式视频
   ======================================== */

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ========================================
   分页样式
   ======================================== */

.pagination {
  display: flex;
  list-style: none;
  gap: var(--spacing-sm);
  justify-content: center;
  margin-top: var(--spacing-lg);
}

.pagination-item {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background-color: var(--color-text-light);
}

.pagination-item a {
  color: var(--color-text-dark);
}

.pagination-item.active {
  background-color: var(--color-primary);
}

.pagination-item.active a {
  color: var(--color-text-light);
}

/* ========================================
   加载动画
   ======================================== */

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-secondary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}