@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@600;700;900&display=swap');

/* ========== 基础重置 ========== */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: system-ui, 'PingFang SC', 'Microsoft YaHei', 'Noto Serif SC', sans-serif;
  overflow-x:hidden;
  background: #FFFCF7;
  color: #292524;
  line-height: 1.6;
}

/* ========== 核心布局 ========== */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; position:relative; }
.section:nth-child(even) {
  background: linear-gradient(120deg, #FFF5EB 0%, #FFFCF7 100%);
}

/* ========== 导航 ========== */
.site-header {
  position:fixed; top:0; left:0; width:100%; z-index:1000;
  background: rgba(255,252,247,0.92);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(249,115,22,0.12);
  box-shadow: 0 2px 20px rgba(249,115,22,0.06);
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:68px; max-width:1200px; margin:0 auto; padding:0 24px;
}
.logo {
  display:flex; align-items:center; gap:10px; font-weight:900;
  font-size:1.25rem; text-decoration:none; color:#F97316;
  letter-spacing:0.5px;
}
.logo-icon {
  width:38px; height:38px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
  background: linear-gradient(135deg, #F97316, #FBBF24);
  color:#fff;
  box-shadow: 0 3px 10px rgba(249,115,22,0.35);
  position: relative;
}
.logo-icon::after {
  content:'';
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:2px solid rgba(249,115,22,0.2);
  animation: pulse-ring 2s ease-in-out infinite;
}
@keyframes pulse-ring {
  0%, 100% { transform:scale(1); opacity:1; }
  50% { transform:scale(1.15); opacity:0.5; }
}
.main-nav { display:flex; align-items:center; gap:28px; list-style:none; }
.main-nav a {
  text-decoration:none; font-size:0.9rem; font-weight:500;
  transition:0.3s; color:#292524;
  position: relative;
  padding:4px 0;
}
.main-nav a:not(.nav-cta)::after {
  content:'';
  position:absolute;
  bottom:0; left:0;
  width:0; height:2px;
  background: linear-gradient(90deg, #F97316, #FBBF24);
  border-radius:2px;
  transition: width 0.3s cubic-bezier(0.22,1,0.36,1);
}
.main-nav a:not(.nav-cta):hover { color:#F97316; }
.main-nav a:not(.nav-cta):hover::after { width:100%; }
.nav-cta {
  padding:8px 22px; border-radius:20px; color:#fff!important;
  font-weight:700;
  background: linear-gradient(135deg, #F97316, #FB923C);
  box-shadow: 0 3px 12px rgba(249,115,22,0.3);
  transition:0.3s;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(249,115,22,0.4);
}
.menu-toggle { display:none; }

/* ========== 首页 Hero ========== */
.hero {
  min-height: 82vh;
  display:flex;
  align-items:center;
  position:relative;
  background:
    conic-gradient(from 120deg at 85% 65%, transparent 0deg, rgba(251,191,36,0.18) 45deg, transparent 90deg, rgba(249,115,22,0.12) 135deg, transparent 180deg),
    radial-gradient(ellipse at 20% 50%, rgba(251,191,36,0.2) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(249,115,22,0.15) 0%, transparent 50%),
    linear-gradient(135deg, #FFFCF7 0%, #FFF3E8 50%, #FFEBD9 100%);
  overflow: hidden;
  padding-top: 68px;
}
.hero::before {
  content:'';
  position:absolute;
  top:-20%; right:-5%;
  width:500px; height:500px;
  border-radius:50%;
  background: conic-gradient(from 0deg, rgba(251,191,36,0.3) 0deg, transparent 30deg, rgba(249,115,22,0.2) 60deg, transparent 90deg, rgba(251,191,36,0.15) 120deg, transparent 150deg);
  filter: blur(40px);
  animation: slow-rotate 25s linear infinite;
}
@keyframes slow-rotate {
  from { transform: rotate(0deg) scale(1); }
  to { transform: rotate(360deg) scale(1.1); }
}
.hero::after {
  content:'';
  position:absolute;
  inset:0;
  background-image: radial-gradient(rgba(41,37,36,0.015) 1px, transparent 1px);
  background-size: 4px 4px;
  pointer-events:none;
}
.hero-content { max-width:720px; position:relative; z-index:2; }
.hero-eyebrow {
  display:inline-block; font-size:0.85rem; font-weight:700;
  padding:6px 18px; border-radius:20px; margin-bottom:20px;
  background: linear-gradient(135deg, #F97316, #FBBF24);
  color:#fff;
  box-shadow: 0 4px 12px rgba(249,115,22,0.3);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.hero h1 {
  font-size:3.4rem;
  line-height:1.15;
  margin-bottom:22px;
  color:#292524;
  font-weight:900;
  letter-spacing:-3px;
}
.hero h1 .text-accent {
  background: linear-gradient(120deg, #F97316 20%, #FBBF24 60%, #FB923C 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}
.hero p {
  font-size:1.1rem;
  opacity:0.65;
  max-width:560px;
  margin-bottom:36px;
  line-height:1.7;
}
.hero-buttons { display:flex; gap:14px; }

/* ========== 按钮 ========== */
.btn {
  display:inline-flex; align-items:center; gap:8px;
  padding:13px 28px; border-radius:24px; font-weight:600;
  font-size:0.95rem;
  cursor:pointer; border:none; text-decoration:none;
  transition:0.3s cubic-bezier(0.22,1,0.36,1);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  color:#fff;
  background: linear-gradient(135deg, #F97316, #FB923C);
  box-shadow: 0 4px 14px rgba(249,115,22,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(249,115,22,0.45);
}
.btn-primary::before {
  content:'';
  position:absolute;
  top:0; left:-100%;
  width:100%; height:100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.5s;
}
.btn-primary:hover::before { left:100%; }
.btn-outline {
  background:transparent;
  border:1.5px solid rgba(249,115,22,0.5);
  color:#F97316;
}
.btn-outline:hover {
  background: rgba(249,115,22,0.08);
  border-color:#F97316;
  transform: translateY(-2px);
}

/* ========== 标签/标题 ========== */
.section-label {
  display:inline-block; font-size:0.8rem; font-weight:700;
  letter-spacing:3px; margin-bottom:12px;
  color:#F97316;
  text-transform: uppercase;
  position: relative;
  padding-left:28px;
}
.section-label::before {
  content:'';
  position:absolute;
  left:0; top:50%;
  width:20px; height:2px;
  background: linear-gradient(90deg, #F97316, #FBBF24);
  border-radius:2px;
}
.section-title {
  font-size:2.3rem; margin-bottom:14px;
  font-weight:900;
  color:#292524;
  letter-spacing:-1px;
}
.section-desc {
  max-width:600px; opacity:0.65; margin-bottom:40px;
  font-size:1rem;
}

/* ========== 卡片网格 ========== */
.cards-grid {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:28px;
}
.category-card {
  border-radius:20px; padding:32px 28px;
  border:1px solid rgba(249,115,22,0.1);
  background:#fff;
  transition:0.4s cubic-bezier(0.22,1,0.36,1);
  position:relative;
  overflow:hidden;
}
.category-card::before {
  content:'';
  position:absolute;
  top:0; left:0;
  width:100%; height:4px;
  background: linear-gradient(90deg, #F97316, #FBBF24, #FB923C);
  transform: scaleX(0);
  transition: transform 0.4s cubic-bezier(0.22,1,0.36,1);
  transform-origin:left;
}
.category-card::after {
  content:'';
  position:absolute;
  bottom:-40px; right:-40px;
  width:80px; height:80px;
  border-radius:50%;
  background: linear-gradient(135deg, rgba(251,191,36,0.2), rgba(249,115,22,0.1));
  transition: transform 0.4s;
  transform: scale(0);
}
.category-card:hover::before { transform: scaleX(1); }
.category-card:hover::after { transform: scale(1); }
.category-card:hover {
  transform:translateY(-5px);
  box-shadow: 0 12px 32px rgba(249,115,22,0.15);
  border-color: transparent;
}
.card-icon {
  width:52px; height:52px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:18px; font-size:1.4rem;
  background: linear-gradient(135deg, #FFF5EB, #FFE8D6);
  color:#F97316;
  box-shadow: inset 0 1px 3px rgba(249,115,22,0.1);
}
.category-card h3 {
  font-size:1.1rem;
  margin-bottom:8px;
  font-weight:700;
  color:#292524;
}
.category-card p {
  font-size:0.85rem;
  opacity:0.6;
  margin-bottom:14px;
  line-height:1.5;
}
.card-link {
  font-weight:700; font-size:0.85rem; text-decoration:none;
  color:#F97316;
  display:inline-flex;
  align-items:center;
  gap:4px;
  transition: gap 0.3s;
}
.card-link:hover { gap:8px; }

/* ========== 特性块 ========== */
.feature-block {
  display:grid; grid-template-columns:1fr 1fr; gap:64px;
  align-items:center;
}
.feature-image {
  border-radius:20px; overflow:hidden;
  box-shadow: 0 12px 32px rgba(249,115,22,0.18);
  position:relative;
}
.feature-image::after {
  content:'';
  position:absolute;
  inset:0;
  background: linear-gradient(135deg, rgba(249,115,22,0.1), transparent 50%);
}
.feature-image img { width:100%; height:auto; display:block; transition: transform 0.5s; }
.feature-image:hover img { transform: scale(1.03); }
.feature-text { }
.feature-text h2 { font-size:1.8rem; font-weight:800; margin-bottom:14px; color:#292524; }
.feature-text p { opacity:0.65; margin-bottom:20px; }
.feature-list { list-style:none; }
.feature-list li {
  padding:8px 0; display:flex; align-items:center; gap:10px;
  color:#292524;
  font-size:0.95rem;
}
.feature-list li::before {
  content:'✓'; font-weight:800;
  color:#F97316;
  width:22px; height:22px;
  border-radius:50%;
  background: rgba(249,115,22,0.1);
  display:flex; align-items:center; justify-content:center;
  font-size:0.7rem;
}
.feature-list li:hover::before {
  background:#F97316;
  color:#fff;
}

/* ========== 数据条 ========== */
.stats-bar {
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:24px; text-align:center;
}
.stat-item {
  padding:32px 20px; border-radius:20px;
  border:1px solid rgba(249,115,22,0.1);
  background:#fff;
  transition:0.4s cubic-bezier(0.22,1,0.36,1);
  position:relative;
  overflow:hidden;
}
.stat-item::before {
  content:'';
  position:absolute;
  bottom:0; left:50%;
  transform:translateX(-50%);
  width:0; height:3px;
  background: linear-gradient(90deg, #F97316, #FBBF24);
  transition: width 0.4s;
  border-radius:2px;
}
.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(249,115,22,0.12);
}
.stat-item:hover::before { width:60%; }
.stat-number {
  font-size:2.4rem; font-weight:900;
  background: linear-gradient(120deg, #F97316, #FBBF24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display:block;
}
.stat-label {
  font-size:0.9rem; opacity:0.6; margin-top:8px;
  font-weight:500;
}

/* ========== 内容墙 ========== */
.content-wall {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:28px;
}
.content-wall-item {
  border-radius:20px; overflow:hidden;
  border:1px solid rgba(249,115,22,0.1);
  background:#fff;
  transition:0.4s cubic-bezier(0.22,1,0.36,1);
  position:relative;
}
.content-wall-item:hover {
  transform:translateY(-6px);
  box-shadow: 0 16px 32px rgba(249,115,22,0.15);
  border-color: transparent;
}
.content-wall-item img {
  width:100%; height:200px; object-fit:cover;
  transition: transform 0.5s cubic-bezier(0.22,1,0.36,1);
}
.content-wall-item:hover img { transform: scale(1.05); }
.content-wall-body { padding:22px; }
.content-wall-body h3 {
  font-size:1rem;
  font-weight:700;
  margin-bottom:6px;
  color:#292524;
}
.content-wall-body p {
  font-size:0.85rem;
  opacity:0.6;
  line-height:1.5;
}

/* ========== FAQ ========== */
.faq-list { max-width:800px; margin:0 auto; }
.faq-item {
  border:1px solid rgba(249,115,22,0.12);
  border-radius:14px; margin-bottom:10px;
  overflow:hidden; cursor:pointer;
  background:#fff;
  transition:0.3s cubic-bezier(0.22,1,0.36,1);
}
.faq-item:hover {
  border-color: rgba(249,115,22,0.35);
  box-shadow: 0 4px 12px rgba(249,115,22,0.08);
}
.faq-item .faq-question {
  padding:18px 22px; font-weight:600;
  display:flex; justify-content:space-between; align-items:center;
  color:#292524;
  font-size:0.95rem;
}
.faq-item .faq-question::after {
  content:'+';
  font-size:1.4rem;
  font-weight:400;
  color:#F97316;
  transition: transform 0.3s;
  line-height:1;
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-item .faq-answer {
  padding:0 22px 18px;
  display:none; opacity:0.7;
  color:#292524;
  font-size:0.9rem;
  line-height:1.7;
}
.faq-item.open {
  border-color: rgba(249,115,22,0.3);
  box-shadow: 0 8px 20px rgba(249,115,22,0.1);
}
.faq-item.open .faq-answer { display:block; animation: fadeIn 0.3s; }
@keyframes fadeIn {
  from { opacity:0; transform: translateY(-6px); }
  to { opacity:1; transform: translateY(0); }
}

/* ========== CTA横幅 ========== */
.cta-banner {
  padding:64px 40px; text-align:center;
  border-radius:24px;
  color:#fff;
  background: linear-gradient(135deg, #F97316 0%, #FB923C 50%, #FBBF24 100%);
  box-shadow: 0 12px 36px rgba(249,115,22,0.35);
  position:relative;
  overflow:hidden;
}
.cta-banner::before {
  content:'';
  position:absolute;
  top:-60%; right:-20%;
  width:400px; height:400px;
  border-radius:50%;
  background: rgba(255,255,255,0.15);
  animation: float-glow 5s ease-in-out infinite;
}
.cta-banner::after {
  content:'';
  position:absolute;
  bottom:-50%; left:-10%;
  width:300px; height:300px;
  border-radius:50%;
  background: rgba(255,255,255,0.1);
  animation: float-glow 7s ease-in-out infinite reverse;
}
@keyframes float-glow {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-15px) scale(1.05); }
}
.cta-banner h2 {
  color:#fff;
  font-size:1.8rem;
  font-weight:800;
  margin-bottom:8px;
  position:relative;
  z-index:2;
}
.cta-banner p {
  color: rgba(255,255,255,0.85);
  margin-bottom:24px;
  position:relative;
  z-index:2;
}
.cta-banner .btn-primary {
  background:#fff;
  color:#F97316;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  position:relative;
  z-index:2;
}
.cta-banner .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* ========== 页脚 ========== */
.site-footer {
  padding:64px 0 28px;
  background: linear-gradient(135deg, #FFF5EB 0%, #FFE8D6 100%);
  border-top: 1px solid rgba(249,115,22,0.1);
  color:#292524;
}
.site-footer .container { }
.footer-grid {
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand {
  padding-right:40px;
}
.footer-brand .logo {
  margin-bottom:14px;
}
.footer-brand p {
  font-size:0.85rem;
  opacity:0.6;
  line-height:1.6;
}
.footer-col { }
.footer-col h4 {
  font-size:0.9rem;
  font-weight:700;
  margin-bottom:12px;
  color:#292524;
  position: relative;
  padding-bottom:8px;
}
.footer-col h4::after {
  content:'';
  position:absolute;
  bottom:0; left:0;
  width:24px; height:2px;
  background: linear-gradient(90deg, #F97316, #FBBF24);
  border-radius:2px;
}
.footer-col a {
  color: rgba(41,37,36,0.6);
  text-decoration:none;
  display:block;
  padding:4px 0;
  font-size:0.9rem;
  transition: 0.3s;
}
.footer-col a:hover {
  color:#F97316;
  padding-left:4px;
}
.footer-bottom {
  border-top:1px solid rgba(41,37,36,0.1);
  margin-top:40px; padding-top:22px;
  text-align:center; font-size:0.85rem;
  color: rgba(41,37,36,0.45);
}

/* ========== 工具类 ========== */
.text-accent {
  background: linear-gradient(120deg, #F97316, #FBBF24);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-center { text-align:center; }
.seo-description {
  max-width:600px; margin:0 auto 48px; opacity:0.65;
  line-height:1.7;
}
.mt-0 { margin-top:0; }
.mb-0 { margin-bottom:0; }

/* ========== 装饰性电影胶片带 ========== */
.section::after {
  content:'';
  position:absolute;
  bottom:0; left:0;
  width:100%;
  height:6px;
  background: repeating-linear-gradient(
    90deg,
    rgba(249,115,22,0.08) 0px,
    rgba(249,115,22,0.08) 14px,
    transparent 14px,
    transparent 16px
  );
  opacity:0.4;
  pointer-events:none;
}

/* ========== 滚动条 ========== */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #FFFCF7;
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #F97316, #FBBF24);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #F97316;
}

/* ========== 选中态 ========== */
::selection {
  background: rgba(249,115,22,0.25);
  color: #292524;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .feature-block { grid-template-columns:1fr; gap:32px; }
  .stats-bar { grid-template-columns:repeat(2,1fr); }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .main-nav {
    display:none;
    flex-direction:column;
    position:absolute;
    top:68px; left:0;
    width:100%;
    background:rgba(255,252,247,0.98);
    padding:24px;
    gap:16px;
    border-bottom: 1px solid rgba(249,115,22,0.1);
    box-shadow: 0 12px 30px rgba(249,115,22,0.1);
  }
  .menu-toggle {
    display:flex;
    align-items:center;
    justify-content:center;
    background:none;
    border:none;
    cursor:pointer;
    width:40px; height:40px;
    border-radius:10px;
    color:#292524;
    font-size:1.2rem;
  }
  .menu-toggle:hover { background: rgba(249,115,22,0.1); }
  .main-nav.open { display:flex; animation: slideDown 0.3s; }
  @keyframes slideDown {
    from { opacity:0; transform: translateY(-12px); }
    to { opacity:1; transform: translateY(0); }
  }
  .hero h1 { font-size:2.4rem; letter-spacing:-1px; }
  .section-title { font-size:1.8rem; }
  .cta-banner { padding:48px 24px; }
  .cta-banner h2 { font-size:1.4rem; }
}

@media (max-width: 480px) {
  .cards-grid, .content-wall, .stats-bar {
    grid-template-columns:1fr;
  }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .hero-buttons { flex-direction:column; }
  .hero h1 { font-size:2rem; }
  .hero { min-height: 70vh; }
  .hero p { font-size:0.95rem; }
  .btn { width:100%; justify-content:center; }
  .category-card { padding:24px; }
  .stat-item { padding:24px 16px; }
  .stat-number { font-size:1.8rem; }
  .footer-bottom { font-size:0.75rem; }
}