/* ============================================
   黑料网 - 黑茶文化与普洱茶收藏鉴赏平台
   主样式表 hc2-main.css
   CSS/ID前缀: hc2-
   设计风格: 茶马古道古朴风
   ============================================ */

/* --- CSS Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --hc2-primary: #6A3906;
  --hc2-amber: #FFBF00;
  --hc2-cream: #F5F5DC;
  --hc2-dark: #2C1A0A;
  --hc2-light: #FFF8F0;
  --hc2-text: #3B2410;
  --hc2-text-light: #7A6552;
  --hc2-border: #D4C4A8;
  --hc2-shadow: rgba(106, 57, 6, 0.15);
  --hc2-font-heading: "STSong", "SimSun", "Songti SC", "Noto Serif SC", serif;
  --hc2-font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --hc2-font-accent: "STKaiti", "KaiTi", "Kaiti SC", cursive;
  --hc2-max-width: 1440px;
  --hc2-content-width: 1200px;
}

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

body {
  font-family: var(--hc2-font-body);
  color: var(--hc2-text);
  background-color: var(--hc2-light);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--hc2-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--hc2-amber);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--hc2-font-heading);
  color: var(--hc2-dark);
  line-height: 1.4;
  font-weight: 700;
}

/* --- Container --- */
.hc2-container {
  width: 100%;
  max-width: var(--hc2-content-width);
  margin: 0 auto;
  padding: 0 20px;
}

.hc2-section {
  padding: 60px 0;
}

.hc2-section-alt {
  background-color: var(--hc2-cream);
}

/* --- Navigation --- */
.hc2-nav {
  position: relative;
  width: 100%;
  background: rgba(245, 245, 220, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--hc2-border);
  z-index: 100;
}

.hc2-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--hc2-max-width);
  margin: 0 auto;
  padding: 12px 24px;
}

.hc2-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--hc2-font-accent);
  font-size: 1.5rem;
  color: var(--hc2-primary);
  font-weight: 700;
  white-space: nowrap;
}

.hc2-logo-icon {
  width: 42px;
  height: 42px;
  background: var(--hc2-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--hc2-amber);
  font-size: 1.2rem;
  font-family: var(--hc2-font-heading);
}

.hc2-nav-links {
  display: flex;
  list-style: none;
  gap: 6px;
  align-items: center;
}

.hc2-nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.95rem;
  color: var(--hc2-text);
  border-radius: 4px;
  position: relative;
  transition: color 0.3s ease, background 0.3s ease;
}

.hc2-nav-link:hover,
.hc2-nav-link.hc2-active {
  color: var(--hc2-primary);
  background: rgba(106, 57, 6, 0.06);
}

.hc2-nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--hc2-amber);
  transition: width 0.3s ease, left 0.3s ease;
}

.hc2-nav-link:hover::after {
  width: 60%;
  left: 20%;
}

.hc2-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hc2-search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.hc2-search-input {
  width: 180px;
  padding: 7px 36px 7px 14px;
  border: 1px solid var(--hc2-border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  color: var(--hc2-text);
  outline: none;
  transition: border-color 0.3s, width 0.3s;
  font-family: var(--hc2-font-body);
}

.hc2-search-input:focus {
  border-color: var(--hc2-primary);
  width: 220px;
}

.hc2-search-btn {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  color: var(--hc2-text-light);
  cursor: pointer;
  font-size: 1rem;
}

.hc2-contact-btn {
  padding: 7px 18px;
  background: var(--hc2-primary);
  color: var(--hc2-cream);
  border: none;
  border-radius: 20px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.3s;
  font-family: var(--hc2-font-body);
}

.hc2-contact-btn:hover {
  background: var(--hc2-dark);
}

/* Hamburger Menu */
.hc2-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hc2-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--hc2-primary);
  transition: transform 0.3s, opacity 0.3s;
}

.hc2-hamburger.hc2-open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hc2-hamburger.hc2-open span:nth-child(2) {
  opacity: 0;
}

.hc2-hamburger.hc2-open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Banner --- */
.hc2-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  max-height: 900px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hc2-hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hc2-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(44, 26, 10, 0.75) 0%,
    rgba(106, 57, 6, 0.55) 50%,
    rgba(44, 26, 10, 0.7) 100%
  );
  z-index: 2;
}

.hc2-hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--hc2-cream);
  padding: 0 20px;
}

.hc2-hero-title {
  font-family: var(--hc2-font-accent);
  font-size: 3.2rem;
  color: var(--hc2-cream);
  margin-bottom: 20px;
  letter-spacing: 8px;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
  writing-mode: vertical-rl;
  display: inline-block;
  line-height: 1.6;
}

.hc2-hero-subtitle {
  font-size: 1.15rem;
  color: rgba(245, 245, 220, 0.9);
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hc2-hero-btn {
  display: inline-block;
  padding: 14px 40px;
  background: var(--hc2-amber);
  color: var(--hc2-dark);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 30px;
  border: 2px solid var(--hc2-amber);
  transition: all 0.3s;
  letter-spacing: 2px;
  font-family: var(--hc2-font-body);
}

.hc2-hero-btn:hover {
  background: transparent;
  color: var(--hc2-amber);
}

/* --- Section Titles --- */
.hc2-section-header {
  text-align: center;
  margin-bottom: 50px;
}

.hc2-section-title {
  font-size: 2rem;
  color: var(--hc2-dark);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.hc2-section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--hc2-amber);
  margin: 12px auto 0;
}

.hc2-section-desc {
  font-size: 1rem;
  color: var(--hc2-text-light);
  max-width: 700px;
  margin: 0 auto;
}

/* --- Treasure Gallery (名家珍品) --- */
.hc2-treasure-scroll {
  display: flex;
  gap: 30px;
  overflow-x: auto;
  padding: 20px 0 30px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.hc2-treasure-scroll::-webkit-scrollbar {
  height: 6px;
}

.hc2-treasure-scroll::-webkit-scrollbar-track {
  background: var(--hc2-cream);
  border-radius: 3px;
}

.hc2-treasure-scroll::-webkit-scrollbar-thumb {
  background: var(--hc2-primary);
  border-radius: 3px;
}

.hc2-treasure-card {
  flex: 0 0 300px;
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px var(--hc2-shadow);
  transition: transform 0.3s, box-shadow 0.3s;
}

.hc2-treasure-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 30px var(--hc2-shadow);
}

.hc2-treasure-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.hc2-treasure-info {
  padding: 18px;
}

.hc2-treasure-name {
  font-size: 1.1rem;
  font-family: var(--hc2-font-heading);
  margin-bottom: 8px;
}

.hc2-treasure-expert {
  font-size: 0.85rem;
  color: var(--hc2-text-light);
  font-style: italic;
}

/* --- Wiki Cards (普洱百科) --- */
.hc2-wiki-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.hc2-wiki-card {
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  padding: 28px 24px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.hc2-wiki-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px var(--hc2-shadow);
}

.hc2-wiki-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: block;
}

.hc2-wiki-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.hc2-wiki-card p {
  font-size: 0.9rem;
  color: var(--hc2-text-light);
  line-height: 1.7;
}

/* --- Story Section (古道茶事) --- */
.hc2-story-block {
  display: flex;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}

.hc2-story-block:nth-child(even) {
  flex-direction: row-reverse;
}

.hc2-story-img-wrap {
  flex: 0 0 45%;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 20px var(--hc2-shadow);
}

.hc2-story-img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.hc2-story-text {
  flex: 1;
}

.hc2-story-text h3 {
  font-size: 1.3rem;
  margin-bottom: 14px;
  font-family: var(--hc2-font-heading);
}

.hc2-story-text p {
  font-size: 0.95rem;
  color: var(--hc2-text-light);
  line-height: 1.8;
  margin-bottom: 14px;
}

.hc2-read-more {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--hc2-primary);
  color: var(--hc2-primary);
  border-radius: 20px;
  font-size: 0.85rem;
  transition: all 0.3s;
}

.hc2-read-more:hover {
  background: var(--hc2-primary);
  color: var(--hc2-cream);
}

/* --- New Products (藏茶阁新品) --- */
.hc2-product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.hc2-product-card {
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s;
}

.hc2-product-card:hover {
  transform: translateY(-4px);
}

.hc2-product-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.hc2-product-info {
  padding: 16px;
}

.hc2-product-name {
  font-size: 1rem;
  font-family: var(--hc2-font-heading);
  margin-bottom: 6px;
}

.hc2-product-price {
  font-size: 1.1rem;
  color: var(--hc2-primary);
  font-weight: 700;
}

.hc2-product-tag {
  display: inline-block;
  padding: 2px 10px;
  background: var(--hc2-amber);
  color: var(--hc2-dark);
  font-size: 0.75rem;
  border-radius: 10px;
  margin-top: 6px;
}

/* --- CTA (在线估价入口) --- */
.hc2-cta {
  background: linear-gradient(135deg, var(--hc2-primary), var(--hc2-dark));
  padding: 60px 0;
  text-align: center;
  color: var(--hc2-cream);
}

.hc2-cta h2 {
  color: var(--hc2-cream);
  font-size: 2rem;
  margin-bottom: 16px;
}

.hc2-cta p {
  font-size: 1.05rem;
  margin-bottom: 30px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hc2-cta-btn {
  display: inline-block;
  padding: 14px 44px;
  background: var(--hc2-amber);
  color: var(--hc2-dark);
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: 30px;
  transition: all 0.3s;
  letter-spacing: 1px;
}

.hc2-cta-btn:hover {
  background: var(--hc2-cream);
  color: var(--hc2-primary);
}

/* --- Reviews (茶友品鉴心得) --- */
.hc2-review-slider {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  padding: 10px 0 20px;
  scroll-snap-type: x mandatory;
}

.hc2-review-card {
  flex: 0 0 350px;
  scroll-snap-align: start;
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  padding: 28px;
  box-shadow: 0 2px 12px var(--hc2-shadow);
}

.hc2-review-quote {
  font-size: 0.95rem;
  color: var(--hc2-text-light);
  line-height: 1.8;
  margin-bottom: 16px;
  font-style: italic;
  position: relative;
  padding-left: 20px;
  border-left: 3px solid var(--hc2-amber);
}

.hc2-review-author {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--hc2-primary);
}

/* --- Video Grid (制茶工艺视频) --- */
.hc2-video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.hc2-video-card {
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  overflow: hidden;
}

.hc2-video-player {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #000;
}

.hc2-video-title {
  padding: 14px 16px;
  font-size: 0.95rem;
  font-family: var(--hc2-font-heading);
}

/* --- Calendar (茶文化活动日历) --- */
.hc2-calendar-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.hc2-calendar-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
}

.hc2-calendar-date {
  flex: 0 0 60px;
  text-align: center;
  background: var(--hc2-primary);
  color: var(--hc2-cream);
  border-radius: 6px;
  padding: 8px 4px;
}

.hc2-calendar-month {
  font-size: 0.75rem;
  text-transform: uppercase;
}

.hc2-calendar-day {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.hc2-calendar-info h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.hc2-calendar-info p {
  font-size: 0.85rem;
  color: var(--hc2-text-light);
}

/* --- Footer --- */
.hc2-footer {
  background: var(--hc2-dark);
  color: rgba(245, 245, 220, 0.8);
  padding: 60px 0 0;
}

.hc2-footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: var(--hc2-content-width);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.hc2-footer-col h4 {
  color: var(--hc2-amber);
  font-size: 1.1rem;
  margin-bottom: 18px;
  font-family: var(--hc2-font-heading);
}

.hc2-footer-col p,
.hc2-footer-col li {
  font-size: 0.9rem;
  line-height: 2;
  color: rgba(245, 245, 220, 0.7);
}

.hc2-footer-col ul {
  list-style: none;
}

.hc2-footer-col a {
  color: rgba(245, 245, 220, 0.7);
  transition: color 0.3s;
}

.hc2-footer-col a:hover {
  color: var(--hc2-amber);
}

.hc2-footer-honors {
  border-top: 1px solid rgba(245, 245, 220, 0.15);
  padding: 30px 24px;
  max-width: var(--hc2-content-width);
  margin: 0 auto;
}

.hc2-honor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
  list-style: none;
}

.hc2-honor-item {
  font-size: 0.85rem;
  color: rgba(245, 245, 220, 0.6);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hc2-footer-bottom {
  border-top: 1px solid rgba(245, 245, 220, 0.1);
  text-align: center;
  padding: 20px;
  font-size: 0.8rem;
  color: rgba(245, 245, 220, 0.5);
}

.hc2-auth-number {
  display: block;
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--hc2-amber);
  letter-spacing: 1px;
}

/* --- Page Banner (内页通用) --- */
.hc2-page-banner {
  position: relative;
  height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--hc2-primary);
}

.hc2-page-banner-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hc2-page-banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--hc2-cream);
}

.hc2-page-banner-content h1 {
  font-size: 2.4rem;
  color: var(--hc2-cream);
  margin-bottom: 12px;
  font-family: var(--hc2-font-heading);
}

.hc2-page-banner-content p {
  font-size: 1.05rem;
  opacity: 0.85;
}

/* --- Breadcrumb --- */
.hc2-breadcrumb {
  padding: 14px 0;
  font-size: 0.85rem;
  color: var(--hc2-text-light);
  border-bottom: 1px solid var(--hc2-border);
  margin-bottom: 40px;
}

.hc2-breadcrumb a {
  color: var(--hc2-text-light);
}

.hc2-breadcrumb a:hover {
  color: var(--hc2-primary);
}

.hc2-breadcrumb span {
  margin: 0 8px;
  color: var(--hc2-border);
}

/* --- Article Content --- */
.hc2-article {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.hc2-article h2 {
  font-size: 1.6rem;
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--hc2-amber);
}

.hc2-article h3 {
  font-size: 1.25rem;
  margin: 28px 0 12px;
}

.hc2-article p {
  margin-bottom: 18px;
  text-indent: 2em;
  line-height: 2;
}

.hc2-article-img {
  margin: 30px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 16px var(--hc2-shadow);
}

.hc2-article-img img {
  width: 100%;
}

.hc2-article blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--hc2-cream);
  border-left: 4px solid var(--hc2-amber);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--hc2-text-light);
}

/* --- Form Styles (在线估价) --- */
.hc2-form-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: flex-start;
}

.hc2-estimate-cases {
  background: var(--hc2-cream);
  border-radius: 8px;
  padding: 28px;
}

.hc2-case-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--hc2-border);
}

.hc2-case-item:last-child {
  border-bottom: none;
}

.hc2-case-name {
  font-weight: 600;
  margin-bottom: 4px;
}

.hc2-case-value {
  color: var(--hc2-primary);
  font-weight: 700;
  font-size: 1.1rem;
}

.hc2-form {
  background: #fff;
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  padding: 28px;
}

.hc2-form-group {
  margin-bottom: 18px;
}

.hc2-form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--hc2-text);
}

.hc2-form-group input,
.hc2-form-group select,
.hc2-form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--hc2-border);
  border-radius: 6px;
  font-size: 0.9rem;
  font-family: var(--hc2-font-body);
  color: var(--hc2-text);
  background: var(--hc2-light);
  transition: border-color 0.3s;
}

.hc2-form-group input:focus,
.hc2-form-group select:focus,
.hc2-form-group textarea:focus {
  border-color: var(--hc2-primary);
  outline: none;
}

.hc2-submit-btn {
  display: block;
  width: 100%;
  padding: 14px;
  background: var(--hc2-primary);
  color: var(--hc2-cream);
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.3s;
  font-family: var(--hc2-font-body);
  letter-spacing: 1px;
}

.hc2-submit-btn:hover {
  background: var(--hc2-dark);
}

/* --- App Download --- */
.hc2-app-section {
  text-align: center;
  padding: 80px 20px;
}

.hc2-app-buttons {
  display: flex;
  gap: 30px;
  justify-content: center;
  margin-top: 40px;
}

.hc2-app-btn {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--hc2-primary), var(--hc2-dark));
  color: var(--hc2-cream);
  font-size: 0.9rem;
  font-weight: 600;
  border: 3px solid var(--hc2-amber);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  text-decoration: none;
}

.hc2-app-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 30px var(--hc2-shadow);
  color: var(--hc2-amber);
}

.hc2-app-btn-icon {
  font-size: 2rem;
  margin-bottom: 6px;
}

/* --- Modal --- */
.hc2-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.hc2-modal-overlay.hc2-show {
  display: flex;
}

.hc2-modal {
  background: #fff;
  border-radius: 12px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  text-align: center;
  position: relative;
}

.hc2-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--hc2-text-light);
}

.hc2-loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--hc2-border);
  border-top-color: var(--hc2-primary);
  border-radius: 50%;
  animation: hc2-spin 0.8s linear infinite;
  margin: 20px auto;
}

@keyframes hc2-spin {
  to { transform: rotate(360deg); }
}

/* --- FAQ Section --- */
.hc2-faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.hc2-faq-item {
  border: 1px solid var(--hc2-border);
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}

.hc2-faq-question {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  transition: background 0.3s;
}

.hc2-faq-question:hover {
  background: var(--hc2-cream);
}

.hc2-faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  background: var(--hc2-cream);
  line-height: 1.8;
  font-size: 0.95rem;
  color: var(--hc2-text-light);
}

.hc2-faq-item.hc2-open .hc2-faq-answer {
  max-height: 500px;
  padding: 16px 20px;
}

.hc2-faq-toggle {
  font-size: 1.2rem;
  transition: transform 0.3s;
}

.hc2-faq-item.hc2-open .hc2-faq-toggle {
  transform: rotate(45deg);
}

/* --- Scroll Process (卷轴流程) --- */
.hc2-scroll-process {
  display: flex;
  gap: 0;
  justify-content: center;
  align-items: center;
  margin: 40px 0;
  flex-wrap: wrap;
}

.hc2-process-step {
  text-align: center;
  padding: 20px;
  flex: 1;
  min-width: 160px;
}

.hc2-process-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--hc2-primary);
  color: var(--hc2-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 auto 12px;
}

.hc2-process-arrow {
  font-size: 1.5rem;
  color: var(--hc2-amber);
  display: flex;
  align-items: center;
}

/* --- Responsive: Mobile First --- */

/* 320px base - already mobile first */

/* 768px tablet */
@media (min-width: 768px) {
  .hc2-hero-title {
    font-size: 2.8rem;
  }
}

/* Below 768px */
@media (max-width: 767px) {
  .hc2-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(245, 245, 220, 0.98);
    flex-direction: column;
    padding: 16px 0;
    border-bottom: 1px solid var(--hc2-border);
    box-shadow: 0 4px 16px var(--hc2-shadow);
  }

  .hc2-nav-links.hc2-mobile-open {
    display: flex;
  }

  .hc2-hamburger {
    display: flex;
  }

  .hc2-nav-right {
    display: none;
  }

  .hc2-hero {
    height: 80vh;
    min-height: 500px;
  }

  .hc2-hero-title {
    font-size: 2rem;
    writing-mode: horizontal-tb;
    letter-spacing: 4px;
  }

  .hc2-wiki-grid {
    grid-template-columns: 1fr;
  }

  .hc2-story-block,
  .hc2-story-block:nth-child(even) {
    flex-direction: column;
  }

  .hc2-story-img-wrap {
    flex: none;
    width: 100%;
  }

  .hc2-product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hc2-video-grid {
    grid-template-columns: 1fr;
  }

  .hc2-calendar-list {
    grid-template-columns: 1fr;
  }

  .hc2-footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .hc2-form-wrap {
    grid-template-columns: 1fr;
  }

  .hc2-page-banner {
    height: 260px;
  }

  .hc2-page-banner-content h1 {
    font-size: 1.8rem;
  }

  .hc2-treasure-card {
    flex: 0 0 260px;
  }

  .hc2-review-card {
    flex: 0 0 280px;
  }

  .hc2-honor-list {
    flex-direction: column;
    align-items: center;
  }
}

/* 1024px desktop */
@media (min-width: 1024px) {
  .hc2-hero-title {
    font-size: 3.2rem;
  }

  .hc2-section {
    padding: 80px 0;
  }
}

/* 1440px large desktop */
@media (min-width: 1440px) {
  .hc2-container {
    max-width: 1320px;
  }
}

/* --- Utility Classes --- */
.hc2-text-center {
  text-align: center;
}

.hc2-mb-20 {
  margin-bottom: 20px;
}

.hc2-mb-40 {
  margin-bottom: 40px;
}

.hc2-ink-divider {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--hc2-border), transparent);
  margin: 40px 0;
}

/* --- Internal Link Styles --- */
.hc2-internal-link {
  color: var(--hc2-primary);
  border-bottom: 1px dashed var(--hc2-amber);
  transition: border-color 0.3s;
}

.hc2-internal-link:hover {
  border-bottom-color: var(--hc2-primary);
  color: var(--hc2-dark);
}

/* --- Vertical Text Accent --- */
.hc2-vertical-text {
  writing-mode: vertical-rl;
  font-family: var(--hc2-font-accent);
  letter-spacing: 4px;
}

/* --- Ink Wash Effect --- */
.hc2-ink-wash {
  position: relative;
}

.hc2-ink-wash::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(106,57,6,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}