/* 蘑菇影视 - 工业复古Loft风格主样式表 */
/* Industrial Retro Loft Style - Main Stylesheet */

/* ===== CSS Reset & Variables ===== */
:root {
  --color-bg: #1a1a1a;
  --color-bg2: #222222;
  --color-bg3: #2a2a2a;
  --color-rust: #8B3A2A;
  --color-rust-light: #B04A35;
  --color-brick: #7A3B2E;
  --color-metal: #4A4A4A;
  --color-metal-light: #6A6A6A;
  --color-gold: #C8A96E;
  --color-gold-light: #E0C080;
  --color-wood: #6B4C2A;
  --color-text: #D4C5A9;
  --color-text-light: #E8DCC8;
  --color-text-muted: #8A7A6A;
  --color-white: #F0E8D8;
  --color-accent: #C0392B;
  --font-main: 'Noto Serif SC', 'Source Han Serif CN', 'SimSun', Georgia, serif;
  --font-heading: 'Noto Serif SC', 'Source Han Serif CN', 'SimSun', Georgia, serif;
  --font-mono: 'Courier New', Courier, monospace;
  --shadow-heavy: 0 8px 32px rgba(0,0,0,0.7);
  --shadow-medium: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-light: 0 2px 8px rgba(0,0,0,0.3);
  --border-metal: 1px solid #4A4A4A;
  --border-rust: 1px solid #6B3A2A;
  --radius: 2px;
  --transition: all 0.3s ease;
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
  background-image: 
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='4' height='4' fill='%231a1a1a'/%3E%3Crect width='1' height='1' fill='%23202020' opacity='0.5'/%3E%3C/svg%3E");
}

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

a:hover {
  color: var(--color-gold-light);
}

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

ul, ol {
  list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.02em;
}

h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.6rem); }
h4 { font-size: clamp(1rem, 2vw, 1.3rem); }

p {
  margin-bottom: 1rem;
  color: var(--color-text);
}

/* ===== Layout ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title h2 {
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  color: var(--color-white);
  text-transform: none;
  letter-spacing: 0.05em;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-rust), var(--color-gold));
  margin: 16px auto 0;
}

.section-title .subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: 10px;
  letter-spacing: 0.1em;
}

/* ===== Header & Navigation ===== */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(20, 18, 16, 0.95);
  border-bottom: 1px solid var(--color-metal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  padding: 0 30px;
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-rust), var(--color-metal));
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-gold);
  border: 1px solid var(--color-rust-light);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.logo-tagline {
  font-size: 0.65rem;
  color: var(--color-text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-main a {
  color: var(--color-text);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-main a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 14px;
  right: 14px;
  height: 1px;
  background: var(--color-rust);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--color-gold);
  background: rgba(139, 58, 42, 0.15);
}

.nav-main a:hover::after,
.nav-main a.active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ===== Search Bar ===== */
.search-bar-wrap {
  background: var(--color-bg2);
  border-bottom: 1px solid var(--color-metal);
  padding: 12px 0;
  margin-top: 70px;
}

.search-bar-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--color-bg3);
  border: 1px solid var(--color-metal);
  border-radius: 2px;
  padding: 10px 16px;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.3);
}

.search-bar-inner input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: 0.9rem;
  font-family: var(--font-main);
}

.search-bar-inner input::placeholder {
  color: var(--color-text-muted);
}

.search-bar-inner button {
  background: var(--color-rust);
  border: none;
  color: var(--color-white);
  padding: 6px 16px;
  cursor: pointer;
  font-size: 0.85rem;
  border-radius: var(--radius);
  transition: var(--transition);
  font-family: var(--font-main);
}

.search-bar-inner button:hover {
  background: var(--color-rust-light);
}

/* ===== Hero Banner ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('../images/hero-banner.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  filter: brightness(0.45);
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero:hover .hero-bg {
  transform: scale(1.0);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(20, 10, 5, 0.7) 0%,
    rgba(139, 58, 42, 0.2) 50%,
    rgba(20, 10, 5, 0.8) 100%
  );
}

/* Noise texture overlay */
.hero-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  opacity: 0.3;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 20px;
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  background: rgba(139, 58, 42, 0.4);
  border: 1px solid var(--color-rust);
  color: var(--color-gold);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  padding: 6px 20px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  color: var(--color-white);
  text-shadow: 2px 4px 20px rgba(0,0,0,0.8);
  margin-bottom: 20px;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.hero-title .highlight {
  color: var(--color-gold);
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--color-text);
  margin-bottom: 40px;
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 0.95rem;
  font-family: var(--font-main);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.05em;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-rust), var(--color-accent));
  color: var(--color-white);
  box-shadow: 0 4px 15px rgba(139, 58, 42, 0.4);
  border: 1px solid var(--color-rust-light);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-rust-light), var(--color-rust));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 58, 42, 0.5);
  color: var(--color-white);
}

.btn-secondary {
  background: transparent;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
}

.btn-secondary:hover {
  background: rgba(200, 169, 110, 0.15);
  transform: translateY(-2px);
  color: var(--color-gold-light);
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  animation: bounce 2s infinite;
}

.hero-scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-text-muted), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== Video Cards Grid ===== */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-heavy);
  border-color: var(--color-rust);
}

.video-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-bg3);
}

.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
}

/* Metal sheen effect on hover */
.video-thumb::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent 30%,
    rgba(200, 169, 110, 0.15) 50%,
    transparent 70%
  );
  transform: translateX(-100%);
  transition: transform 0.6s ease;
  z-index: 2;
  pointer-events: none;
}

/* Rust particle effect */
.video-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Ccircle cx='20' cy='30' r='1' fill='%238B3A2A' opacity='0'/%3E%3Ccircle cx='60' cy='70' r='0.8' fill='%238B3A2A' opacity='0'/%3E%3Ccircle cx='80' cy='20' r='1.2' fill='%238B3A2A' opacity='0'/%3E%3C/svg%3E");
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 2;
  pointer-events: none;
}

.video-card:hover .video-thumb::before {
  transform: translateX(100%);
}

.video-card:hover .video-thumb::after {
  opacity: 1;
  animation: rustParticle 0.5s ease forwards;
}

@keyframes rustParticle {
  0% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.02); }
  100% { opacity: 0.3; transform: scale(1); }
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
  filter: brightness(0.7) saturate(0.8);
}

.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 60px;
  height: 60px;
  background: rgba(139, 58, 42, 0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 3;
  border: 2px solid var(--color-gold);
  box-shadow: 0 0 20px rgba(139, 58, 42, 0.6);
}

.play-btn::after {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 10px 0 10px 18px;
  border-color: transparent transparent transparent var(--color-gold);
  margin-left: 4px;
}

.video-card:hover .play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,0.75);
  color: var(--color-text);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 2px;
  font-family: var(--font-mono);
  z-index: 3;
}

.video-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--color-rust);
  color: var(--color-white);
  font-size: 0.7rem;
  padding: 3px 10px;
  letter-spacing: 0.1em;
  z-index: 3;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 0.95rem;
  color: var(--color-white);
  margin-bottom: 8px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.video-meta .icon {
  font-size: 0.85rem;
}

/* ===== Story / Article Cards ===== */
.story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.story-card {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.story-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
  border-color: var(--color-rust);
}

.story-img {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.story-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.story-card:hover .story-img img {
  transform: scale(1.05);
}

.story-body {
  padding: 18px;
}

.story-cat {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--color-rust-light);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 8px;
  border-left: 2px solid var(--color-rust);
  padding-left: 8px;
}

.story-title {
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 10px;
  line-height: 1.4;
}

.story-excerpt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.story-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--color-metal);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Image Wall ===== */
.image-wall {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto;
  gap: 12px;
}

.image-wall-item {
  overflow: hidden;
  border-radius: var(--radius);
  position: relative;
  cursor: pointer;
}

.image-wall-item:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.image-wall-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease, filter 0.3s ease;
  min-height: 200px;
}

.image-wall-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.8) sepia(0.2);
}

.image-wall-item::after {
  content: attr(data-caption);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: var(--color-text);
  font-size: 0.8rem;
  padding: 20px 12px 10px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.image-wall-item:hover::after {
  opacity: 1;
}

/* ===== Creator Cards ===== */
.creator-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}

.creator-card {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
}

.creator-card:hover {
  border-color: var(--color-rust);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.creator-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 14px;
  border: 2px solid var(--color-rust);
  box-shadow: 0 0 15px rgba(139, 58, 42, 0.3);
}

.creator-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.creator-name {
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 4px;
}

.creator-role {
  font-size: 0.78rem;
  color: var(--color-rust-light);
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.creator-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.creator-stats {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-metal);
}

.creator-stats .stat {
  text-align: center;
}

.creator-stats .stat-num {
  display: block;
  font-size: 1rem;
  color: var(--color-gold);
  font-weight: 700;
}

.creator-stats .stat-label {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

/* ===== Review / Testimonial Cards ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.review-card {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  transition: var(--transition);
}

.review-card:hover {
  border-color: var(--color-rust);
  box-shadow: var(--shadow-light);
}

.review-card::before {
  content: '"';
  position: absolute;
  top: 10px;
  left: 18px;
  font-size: 4rem;
  color: var(--color-rust);
  opacity: 0.3;
  font-family: Georgia, serif;
  line-height: 1;
}

.review-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 12px;
}

.review-stars span {
  color: var(--color-gold);
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.88rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
  padding-top: 10px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-metal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
  font-size: 1rem;
  font-weight: 700;
  flex-shrink: 0;
}

.review-name {
  font-size: 0.88rem;
  color: var(--color-white);
  font-weight: 600;
}

.review-location {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

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

.faq-item {
  border: var(--border-metal);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
  background: var(--color-bg2);
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--color-rust);
}

.faq-question {
  padding: 18px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  user-select: none;
}

.faq-question::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--color-rust);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 18px;
}

/* ===== Partner Logos ===== */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  align-items: center;
}

.partner-item {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.partner-item:hover {
  border-color: var(--color-rust);
  color: var(--color-gold);
}

/* ===== AI Tools Section ===== */
.ai-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.ai-tool-card {
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.ai-tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-rust), var(--color-gold), var(--color-rust));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.ai-tool-card:hover {
  border-color: var(--color-rust);
  transform: translateY(-3px);
  box-shadow: var(--shadow-medium);
}

.ai-tool-card:hover::before {
  opacity: 1;
}

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

.ai-tool-name {
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: 8px;
}

.ai-tool-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.ai-tool-tag {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.7rem;
  background: rgba(139, 58, 42, 0.2);
  border: 1px solid var(--color-rust);
  color: var(--color-rust-light);
  padding: 3px 10px;
  letter-spacing: 0.1em;
}

/* ===== Contact Section ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.contact-info h3 {
  color: var(--color-gold);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.contact-item {
  display: flex;
  gap: 14px;
  margin-bottom: 18px;
  align-items: flex-start;
}

.contact-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg3);
  border: var(--border-rust);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-detail h4 {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact-detail p {
  font-size: 0.9rem;
  color: var(--color-text);
  margin: 0;
}

.qr-codes {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

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

.qr-placeholder {
  width: 100px;
  height: 100px;
  background: var(--color-bg3);
  border: var(--border-metal);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-align: center;
  padding: 10px;
  line-height: 1.4;
}

.qr-label {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Brand Story Section ===== */
.brand-story {
  background: var(--color-bg2);
  border-top: 1px solid var(--color-metal);
  border-bottom: 1px solid var(--color-metal);
}

.brand-story-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.brand-story-img {
  position: relative;
}

.brand-story-img img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-metal);
}

.brand-story-img::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: 10px;
  bottom: 10px;
  border: 1px solid var(--color-rust);
  border-radius: var(--radius);
  z-index: -1;
}

.brand-story-text h2 {
  margin-bottom: 20px;
}

.brand-story-text p {
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 16px;
}

.brand-quote {
  border-left: 3px solid var(--color-rust);
  padding-left: 20px;
  margin: 24px 0;
  font-style: italic;
  color: var(--color-gold);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===== Stats Bar ===== */
.stats-bar {
  background: var(--color-bg3);
  border-top: 1px solid var(--color-metal);
  border-bottom: 1px solid var(--color-metal);
  padding: 40px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-item .num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-gold);
  display: block;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-item .label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

/* ===== Footer ===== */
#footer {
  background: #111111;
  border-top: 1px solid var(--color-metal);
  padding: 50px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.footer-col h4 {
  font-size: 0.9rem;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-metal);
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  font-size: 0.83rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-gold);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--color-metal);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin: 0;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 32px;
  height: 32px;
  background: var(--color-bg3);
  border: var(--border-metal);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.footer-social a:hover {
  border-color: var(--color-rust);
  color: var(--color-gold);
}

/* ===== Section Dividers ===== */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-metal), transparent);
  margin: 0;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

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

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

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

/* ===== Page Hero (inner pages) ===== */
.page-hero {
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--color-bg2);
  border-bottom: 1px solid var(--color-metal);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.3);
}

.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.page-hero-content h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-bottom: 10px;
}

.page-hero-content p {
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* ===== Pagination ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 40px;
}

.pagination a,
.pagination span {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg2);
  border: var(--border-metal);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.pagination a:hover,
.pagination span.active {
  background: var(--color-rust);
  border-color: var(--color-rust);
  color: var(--color-white);
}

/* ===== Tags ===== */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  background: var(--color-bg3);
  border: var(--border-metal);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
}

.tag:hover {
  border-color: var(--color-rust);
  color: var(--color-rust-light);
}

/* ===== Utility Classes ===== */
.text-gold { color: var(--color-gold); }
.text-rust { color: var(--color-rust-light); }
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.hidden { display: none; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-metal);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-rust);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .brand-story-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-main {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(20, 18, 16, 0.98);
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--color-metal);
    gap: 4px;
  }
  
  .nav-main.open {
    display: flex;
  }
  
  .nav-main a {
    padding: 12px 16px;
    width: 100%;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .section {
    padding: 50px 0;
  }
  
  .video-grid {
    grid-template-columns: 1fr;
  }
  
  .image-wall {
    grid-template-columns: 1fr 1fr;
  }
  
  .image-wall-item:first-child {
    grid-column: span 2;
    grid-row: span 1;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-title {
    font-size: clamp(1.8rem, 7vw, 3rem);
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
  }
  
  .logo-tagline {
    display: none;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
  
  .image-wall {
    grid-template-columns: 1fr;
  }
  
  .image-wall-item:first-child {
    grid-column: span 1;
  }
  
  .creator-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .review-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Animation ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* ===== Loading State ===== */
.lazy-img {
  opacity: 0;
  transition: opacity 0.5s ease;
}

.lazy-img.loaded {
  opacity: 1;
}

/* ===== Industrial Decorative Elements ===== */
.rivet-border {
  border: 1px solid var(--color-metal);
  position: relative;
}

.rivet-border::before,
.rivet-border::after {
  content: '●';
  position: absolute;
  font-size: 6px;
  color: var(--color-metal-light);
  line-height: 1;
}

.rivet-border::before {
  top: 4px;
  left: 4px;
}

.rivet-border::after {
  bottom: 4px;
  right: 4px;
}

/* ===== Section Background Variants ===== */
.bg-dark { background: var(--color-bg); }
.bg-darker { background: #111111; }
.bg-medium { background: var(--color-bg2); }
.bg-rust-subtle {
  background: linear-gradient(135deg, var(--color-bg) 0%, rgba(139, 58, 42, 0.08) 100%);
}