/* ==========================================================================
   柠檬影视 Lemon Media - 全局样式表
   打破常规的观影体验 - 超越传统平台的创新之作
   版本: 1.0.0 | 响应式设计 | 桌面 + 移动端
   ========================================================================== */

/* ---------- CSS 变量与设计令牌 ---------- */
:root {
  --color-primary: #6c5ce7;
  --color-primary-dark: #5a4bd1;
  --color-secondary: #00cec9;
  --color-accent: #fd79a8;
  --color-gold: #fdcb6e;
  --color-dark: #0f1023;
  --color-dark-2: #171a33;
  --color-dark-3: #1f2350;
  --color-card: #1d2145;
  --color-card-hover: #262b5e;
  --color-text: #f4f4f8;
  --color-text-muted: #a8abc7;
  --color-border: rgba(255, 255, 255, 0.09);
  --gradient-hero: linear-gradient(135deg, #0f1023 0%, #1b1f4d 45%, #2d2468 100%);
  --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
  --gradient-accent: linear-gradient(135deg, #fd79a8 0%, #fdcb6e 100%);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 36px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.45);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;
  --radius-full: 999px;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container: 1200px;
  --header-h: 76px;
  --transition: 0.32s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-dark);
  color: var(--color-text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: 1rem;
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--color-dark-3);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* ---------- 工具类 ---------- */
.container {
  width: min(var(--container), 92%);
  margin-inline: auto;
}

.section-pad {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.section-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-secondary);
  background: rgba(0, 206, 201, 0.12);
  padding: 0.45rem 1.1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.2rem;
}

.section-title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 640px;
  margin-bottom: 2.5rem;
}

.text-center {
  text-align: center;
}
.text-center .section-subtitle {
  margin-inline: auto;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.9rem;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  will-change: transform;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(108, 92, 231, 0.4);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(108, 92, 231, 0.55);
}

.btn-outline {
  border: 2px solid rgba(255, 255, 255, 0.35);
  color: #fff;
}
.btn-outline:hover {
  border-color: var(--color-secondary);
  background: rgba(0, 206, 201, 0.12);
  transform: translateY(-3px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1rem 2.4rem;
  font-size: 1.08rem;
}

/* ==========================================================================
   导航栏 Header / Nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 16, 35, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.scrolled {
  background: rgba(15, 16, 35, 0.94);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.brand-logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.25rem;
  color: #fff;
  box-shadow: 0 6px 18px rgba(108, 92, 231, 0.45);
}

.brand span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link {
  position: relative;
  padding: 0.6rem 1rem;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}
.nav-link.active {
  color: #fff;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.2rem;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  place-items: center;
  flex-direction: column;
  gap: 5px;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.16);
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero 主视觉区
   ========================================================================== */
.hero {
  position: relative;
  background: var(--gradient-hero);
  overflow: hidden;
  min-height: min(92vh, 820px);
  display: flex;
  align-items: center;
  padding-block: clamp(4rem, 8vw, 6rem);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 30%, rgba(108, 92, 231, 0.28), transparent 42%),
    radial-gradient(circle at 85% 20%, rgba(0, 206, 201, 0.22), transparent 46%),
    radial-gradient(circle at 60% 90%, rgba(253, 121, 168, 0.14), transparent 40%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 206, 201, 0.14);
  border: 1px solid rgba(0, 206, 201, 0.35);
  color: #7ff3f0;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.5rem 1.2rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.6rem;
  animation: fadeSlideUp 0.8s ease both;
}
.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
  box-shadow: 0 0 0 0 rgba(0, 206, 201, 0.6);
  animation: pulse 2s infinite;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.6vw, 3.8rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
  animation: fadeSlideUp 0.8s ease 0.12s both;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.18rem);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 2.2rem;
  animation: fadeSlideUp 0.8s ease 0.24s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.6rem;
  animation: fadeSlideUp 0.8s ease 0.36s both;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 3vw, 2.4rem);
  padding-top: 1.6rem;
  border-top: 1px solid var(--color-border);
  animation: fadeSlideUp 0.8s ease 0.48s both;
}
.hero-stats strong {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-stats span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.hero-visual {
  position: relative;
  animation: fadeScaleIn 1s ease 0.3s both;
}
.hero-visual-inner {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: rotate(1.5deg);
  transition: transform var(--transition);
}
.hero-visual-inner:hover {
  transform: rotate(0deg) scale(1.02);
}
.hero-visual-inner img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero-card-float {
  position: absolute;
  background: rgba(23, 26, 51, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1.2rem;
  box-shadow: var(--shadow-md);
  font-size: 0.9rem;
  animation: floatY 5s ease-in-out infinite;
}
.hero-card-float .float-title {
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.2rem;
}
.hero-card-float .float-sub {
  color: var(--color-text-muted);
  font-size: 0.78rem;
}
.hero-card-float .float-icon {
  font-size: 1.5rem;
  margin-right: 0.6rem;
}
.hero-card-float.f1 {
  top: 12%;
  left: -7%;
}
.hero-card-float.f2 {
  bottom: 14%;
  right: -6%;
  animation-delay: 1.6s;
}

/* ==========================================================================
   区块通用卡片
   ========================================================================== */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.8rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}
.card:hover {
  transform: translateY(-8px);
  background: var(--color-card-hover);
  border-color: rgba(108, 92, 231, 0.45);
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 58px;
  height: 58px;
  border-radius: 16px;
  background: rgba(108, 92, 231, 0.16);
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  margin-bottom: 1.3rem;
  transition: transform var(--transition);
}
.card:hover .card-icon {
  transform: scale(1.12) rotate(-6deg);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.7rem;
}
.card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Features 核心特性
   ========================================================================== */
.features {
  background: var(--color-dark);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.feature-list {
  margin-top: 1.2rem;
  display: grid;
  gap: 0.6rem;
}
.feature-list li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--color-text-muted);
}
.feature-list li::before {
  content: "✓";
  color: var(--color-secondary);
  font-weight: 800;
  flex-shrink: 0;
}

/* ==========================================================================
   Services 服务介绍
   ========================================================================== */
.services {
  background: var(--color-dark-2);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.service-item {
  display: flex;
  gap: 1.4rem;
  align-items: flex-start;
  padding: 2rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.service-item:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 206, 201, 0.5);
  box-shadow: var(--shadow-md);
}
.service-item .service-num {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  flex-shrink: 0;
}
.service-item h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}
.service-item p {
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

/* ==========================================================================
   Products 产品矩阵
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.product-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.product-card:hover {
  transform: translateY(-10px);
  border-color: rgba(108, 92, 231, 0.5);
  box-shadow: var(--shadow-lg);
}

.product-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.product-card:hover .product-media img {
  transform: scale(1.08);
}
.product-tag {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 16, 35, 0.78);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
}

.product-body {
  padding: 1.6rem 1.6rem 1.9rem;
}
.product-body h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
}
.product-body p {
  color: var(--color-text-muted);
  font-size: 0.94rem;
  margin-bottom: 1.2rem;
}

.product-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--color-text-muted);
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.product-meta span::before {
  content: "· ";
  color: var(--color-secondary);
}

/* ==========================================================================
   资讯 News
   ========================================================================== */
.news-section {
  background: var(--color-dark);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

.news-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.news-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 206, 201, 0.45);
}

.news-thumb {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.news-card:hover .news-thumb img {
  transform: scale(1.06);
}
.news-date-badge {
  position: absolute;
  bottom: 0.8rem;
  left: 0.8rem;
  background: rgba(15, 16, 35, 0.85);
  backdrop-filter: blur(6px);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  color: #fff;
}

.news-body {
  padding: 1.4rem 1.5rem 1.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}
.news-cat {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  text-transform: uppercase;
}
.news-body h3 {
  font-size: 1.08rem;
  font-weight: 800;
  line-height: 1.45;
}
.news-body h3 a:hover {
  color: var(--color-secondary);
}
.news-body p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  flex: 1;
}
.news-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
}
.news-link:hover {
  color: var(--color-secondary);
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 3rem;
}
.page-link {
  min-width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  font-weight: 700;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.page-link:hover {
  background: rgba(108, 92, 231, 0.25);
  color: #fff;
  transform: translateY(-2px);
}
.page-link.current {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
}

/* ==========================================================================
   资讯详情 News Detail
   ========================================================================== */
.article-hero {
  background: var(--gradient-hero);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--color-border);
}
.article-hero .section-title {
  max-width: 820px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 1rem;
}
.article-meta span strong {
  color: #fff;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 3rem;
  align-items: start;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.article-content {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 3rem);
}
.article-content .lead {
  font-size: 1.12rem;
  color: #d6d6e8;
  font-weight: 600;
  line-height: 1.9;
  border-left: 4px solid var(--color-secondary);
  padding-left: 1.2rem;
  margin-bottom: 1.8rem;
}
.article-content h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin: 2.2rem 0 1rem;
  padding-top: 0.4rem;
  border-top: 1px solid var(--color-border);
}
.article-content h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin: 1.6rem 0 0.8rem;
  color: var(--color-secondary);
}
.article-content p {
  margin-bottom: 1.1rem;
  color: #c9cbe0;
}
.article-content ul {
  margin: 0 0 1.2rem;
  display: grid;
  gap: 0.5rem;
}
.article-content ul li {
  position: relative;
  padding-left: 1.5rem;
  color: #c9cbe0;
}
.article-content ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 800;
}
.article-content figure {
  margin: 1.8rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}
.article-content figcaption {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 0.8rem;
  background: var(--color-dark-2);
}

.article-sidebar {
  display: grid;
  gap: 1.6rem;
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}
.sidebar-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
}
.sidebar-card h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 1.1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-link {
  display: block;
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: color var(--transition), padding-left var(--transition);
}
.sidebar-link:hover {
  color: var(--color-secondary);
  padding-left: 0.4rem;
}
.sidebar-link:last-child {
  border-bottom: none;
}
.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag {
  font-size: 0.78rem;
  background: rgba(108, 92, 231, 0.14);
  color: #b9aef5;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  transition: background var(--transition);
}
.tag:hover {
  background: rgba(108, 92, 231, 0.3);
}

/* ==========================================================================
   Contact 联系我们
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 1.4rem;
}
.contact-card {
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: transform var(--transition), border-color var(--transition);
}
.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 206, 201, 0.45);
}
.contact-card .card-icon {
  width: 50px;
  height: 50px;
  font-size: 1.4rem;
  margin-bottom: 0;
}
.contact-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}
.contact-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.contact-form-wrap {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 4vw, 2.6rem);
}
.form-group {
  margin-bottom: 1.4rem;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: #d6d6e8;
}
.form-control {
  width: 100%;
  background: var(--color-dark-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.1rem;
  color: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control::placeholder {
  color: #6d7090;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.25);
}
textarea.form-control {
  min-height: 140px;
  resize: vertical;
}
.form-note {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-top: 0.4rem;
}

/* ==========================================================================
   FAQ 常见问题
   ========================================================================== */
.faq {
  background: var(--color-dark-2);
}
.faq-list {
  max-width: 860px;
  margin-inline: auto;
  display: grid;
  gap: 1rem;
}
.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open {
  border-color: rgba(108, 92, 231, 0.5);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.6rem;
  text-align: left;
  font-size: 1.02rem;
  font-weight: 700;
  color: #fff;
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--color-secondary);
}
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(108, 92, 231, 0.2);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  transition: transform var(--transition), background var(--transition);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--gradient-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.open .faq-answer {
  max-height: 400px;
}
.faq-answer p {
  padding: 0 1.6rem 1.4rem;
  color: var(--color-text-muted);
  font-size: 0.94rem;
}

/* ==========================================================================
   CTA 行动号召
   ========================================================================== */
.cta {
  position: relative;
  background: var(--gradient-hero);
  text-align: center;
  overflow: hidden;
  padding-block: clamp(4rem, 8vw, 6.5rem);
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(108, 92, 231, 0.3), transparent 55%);
  pointer-events: none;
}
.cta .section-title {
  max-width: 720px;
  margin-inline: auto;
}
.cta .section-subtitle {
  margin-inline: auto;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}
.cta-note {
  margin-top: 1.4rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   页脚 Footer
   ========================================================================== */
.site-footer {
  background: var(--color-dark-2);
  border-top: 1px solid var(--color-border);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-block: clamp(3rem, 6vw, 4.5rem);
}
.footer-brand .brand {
  margin-bottom: 1rem;
}
.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  max-width: 320px;
}
.footer-col h3 {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 1.2rem;
  color: #fff;
}
.footer-col ul {
  display: grid;
  gap: 0.6rem;
}
.footer-col a {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}
.footer-col a:hover {
  color: var(--color-secondary);
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-block: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.footer-bottom a {
  color: var(--color-text-muted);
  margin-left: 1rem;
}
.footer-bottom a:hover {
  color: var(--color-secondary);
}

/* ==========================================================================
   通用：About / 页面顶部
   ========================================================================== */
.page-hero {
  position: relative;
  background: var(--gradient-hero);
  padding-block: clamp(3.5rem, 8vw, 6rem);
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(108, 92, 231, 0.26), transparent 45%),
              radial-gradient(circle at 80% 70%, rgba(0, 206, 201, 0.18), transparent 42%);
  pointer-events: none;
}
.page-hero .container {
  position: relative;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.2rem;
}
.breadcrumb a {
  color: var(--color-secondary);
}
.breadcrumb a:hover {
  color: #fff;
}

/* 关于页 故事区 */
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.story-visual img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition);
}
.story-visual img:hover {
  transform: scale(1.02);
}
.story-points {
  display: grid;
  gap: 1.2rem;
  margin-top: 1.6rem;
}
.story-point {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.story-point .point-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(108, 92, 231, 0.16);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.story-point h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}
.story-point p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* 数值区 */
.stats-band {
  background: var(--color-dark-2);
  border-block: 1px solid var(--color-border);
}
.stats-band-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  padding-block: clamp(2.5rem, 5vw, 4rem);
}
.stat-item {
  text-align: center;
}
.stat-item strong {
  display: block;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.stat-item span {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* 团队区 */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
}
.team-card {
  text-align: center;
  padding: 1.8rem 1.2rem;
}
.team-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 1.1rem;
  border: 3px solid rgba(108, 92, 231, 0.5);
  transition: transform var(--transition), border-color var(--transition);
}
.team-card:hover .team-avatar {
  transform: scale(1.08);
  border-color: var(--color-secondary);
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
}
.team-card .team-role {
  color: var(--color-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.6rem;
}
.team-card p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* 价值观区 */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}

/* ==========================================================================
   About 时间线
   ========================================================================== */
.timeline {
  position: relative;
  max-width: 780px;
  margin-inline: auto;
  padding-left: 2rem;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
}
.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.timeline-item::before {
  content: "";
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-dark-2);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.35);
}
.timeline-item h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}
.timeline-item .timeline-year {
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}
.timeline-item p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ==========================================================================
   动画 Animations
   ========================================================================== */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 206, 201, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(0, 206, 201, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 206, 201, 0); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeScaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

/* 滚动渐入 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* 返回顶部 */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 1.2rem;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 900;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  transform: translateY(-4px) scale(1.05);
}

/* ==========================================================================
   响应式 Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .features-grid,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    max-width: 620px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 66px;
  }
  .nav-toggle {
    display: grid;
  }
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(15, 16, 35, 0.98);
    backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: stretch;
    gap: 0.3rem;
    padding: 1.2rem 6% 1.6rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-140%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.4s ease, opacity 0.4s ease, visibility 0.4s;
    box-shadow: var(--shadow-lg);
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-link {
    padding: 0.9rem 1rem;
    font-size: 1.05rem;
  }
  .nav-link.active::after {
    left: 1rem;
    transform: none;
    width: 4px;
    height: auto;
    bottom: auto;
    top: 50%;
    translate: 0 -50%;
  }
  .nav-actions .btn-outline {
    display: none;
  }
  .features-grid,
  .products-grid,
  .services-grid,
  .contact-grid,
  .story-grid,
  .values-grid,
  .news-grid {
    grid-template-columns: 1fr;
  }
  .team-grid {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    grid-template-columns: 1fr;
  }
  .stats-band-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .hero-card-float.f1 {
    left: -2%;
  }
  .hero-card-float.f2 {
    right: -2%;
  }
  .hero-actions .btn {
    flex: 1;
  }
}

@media (max-width: 480px) {
  .stats-band-grid {
    grid-template-columns: 1fr;
  }
  .brand {
    font-size: 1.1rem;
  }
  .brand-logo {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  .article-content {
    padding: 1.4rem;
  }
  .pagination {
    flex-wrap: wrap;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .site-header,
  .site-footer,
  .back-to-top,
  .nav-actions,
  .hero-actions,
  .cta {
    display: none !important;
  }
  body {
    background: #fff;
    color: #111;
  }
  .card,
  .article-content,
  .contact-form-wrap {
    background: #fff;
    color: #111;
  }
}

/* ==========================================================================
   补充样式：产品版本 / 对比表 / 资讯详情 / 通用工具
   ========================================================================== */

/* ---------- 产品版本（pricing） ---------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  align-items: stretch;
  margin-top: 1rem;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  overflow: hidden;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 206, 201, 0.4);
}

.pricing-card.featured {
  background: linear-gradient(180deg, var(--color-card-hover) 0%, var(--color-card) 100%);
  border-color: var(--color-primary);
  box-shadow: 0 16px 48px rgba(108, 92, 231, 0.35);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.pricing-badge {
  position: absolute;
  top: 1.1rem;
  right: -2.2rem;
  transform: rotate(45deg);
  background: var(--gradient-accent);
  color: #1f2350;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.35rem 2.4rem;
  letter-spacing: 0.08em;
}

.pricing-top {
  margin-bottom: 1.4rem;
}

.pricing-name {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.pricing-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin-bottom: 1.6rem;
}

.pricing-price strong {
  font-size: 2.8rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.pricing-price span {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.pricing-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.pricing-features li {
  position: relative;
  padding-left: 1.6rem;
  color: var(--color-text);
  font-size: 0.95rem;
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-secondary);
  font-weight: 700;
}

/* ---------- 对比表格 ---------- */
.alt-bg {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02) 0%, transparent 60%);
  border-block: 1px solid var(--color-border);
}

.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-card);
  box-shadow: var(--shadow-sm);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  text-align: center;
}

.compare-table th,
.compare-table td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.compare-table thead th {
  background: var(--color-dark-3);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.compare-table tbody th {
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
}

.compare-table tbody tr:hover {
  background: rgba(108, 92, 231, 0.1);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table td {
  color: var(--color-secondary);
  font-weight: 700;
}

/* ---------- 资讯详情布局 ---------- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 2.8rem;
  align-items: start;
  padding-top: clamp(2.5rem, 5vw, 4rem);
}

.article-content {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 4vw, 3rem);
}

.article-content .lead {
  font-size: 1.15rem;
  color: #d9d9ec;
  line-height: 1.9;
  border-left: 4px solid var(--color-secondary);
  padding-left: 1.2rem;
  margin-bottom: 2rem;
}

.article-content h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin: 2.2rem 0 1rem;
  letter-spacing: -0.01em;
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.8rem 0 0.8rem;
  color: var(--color-secondary);
}

.article-content p {
  color: var(--color-text-muted);
  margin-bottom: 1.1rem;
}

.article-content ul {
  list-style: none;
  margin: 1rem 0 1.4rem;
}

.article-content ul li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.6rem;
  color: var(--color-text-muted);
}

.article-content ul li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-secondary);
}

.article-content figure {
  margin: 2rem 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.article-content figure img {
  width: 100%;
  height: auto;
}

figcaption {
  padding: 0.8rem 1rem;
  background: var(--color-dark-3);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-align: center;
}

.article-hero {
  position: relative;
  padding: clamp(3.2rem, 7vw, 5.5rem) 0 2.5rem;
  background: var(--gradient-hero);
  overflow: hidden;
}

.article-hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 1.2rem;
  max-width: 900px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.8rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.article-meta strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ---------- 侧边栏 ---------- */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
}

.sidebar-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.4rem;
}

.sidebar-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 1.1rem;
  color: var(--color-text);
}

.sidebar-link {
  display: block;
  padding: 0.55rem 0;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  border-bottom: 1px dashed var(--color-border);
  transition: color var(--transition), padding-left var(--transition);
}

.sidebar-link:last-child {
  border-bottom: none;
}

.sidebar-link:hover {
  color: var(--color-secondary);
  padding-left: 0.35rem;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: var(--color-dark-3);
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.tag:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: transparent;
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 3rem;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: var(--radius-sm);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-weight: 700;
  transition: all var(--transition);
}

.page-link:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
  transform: translateY(-2px);
}

.page-link.current {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
}

/* ---------- 表单 ---------- */
.form-group {
  margin-bottom: 1.2rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  background: var(--color-dark-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(0, 206, 201, 0.15);
}

.form-control::placeholder {
  color: rgba(168, 171, 199, 0.6);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  margin-top: 1rem;
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-align: center;
}

/* ---------- 联系页网格 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.8rem;
  align-items: start;
}

.contact-info {
  display: grid;
  gap: 1.2rem;
}

.contact-card {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  transition: transform var(--transition), border-color var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 206, 201, 0.4);
}

.contact-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 0.3rem;
}

.contact-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.contact-form-wrap {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 4vw, 2.5rem);
}

/* ---------- 通用工具 ---------- */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ---------- 响应式：平板与手机 ---------- */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .article-sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }
  .pricing-card.featured {
    transform: scale(1);
  }
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
  .pricing-price strong {
    font-size: 2.3rem;
  }
  .article-sidebar {
    grid-template-columns: 1fr;
  }
  .article-meta {
    gap: 0.4rem 1.2rem;
    font-size: 0.82rem;
  }
}