/* ========================================
   PHC · 千引·驿枢 — Apple-style Website
   ======================================== */

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

:root {
  --color-bg-dark: #000000;
  --color-bg-darker: #0a0a0a;
  --color-bg-card: #111111;
  --color-bg-light: #f5f5f7;
  --color-bg-white: #ffffff;
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #86868b;
  --color-text-dark: #1d1d1f;
  --color-text-muted: #6e6e73;
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;
  --color-teal: #30d5c8;
  --color-cyan: #00bcd4;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "PingFang SC", "Noto Sans SC", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", monospace;
  --max-width: 1200px;
  --nav-height: 52px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background: var(--color-bg-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-logo img {
  height: 28px;
  width: auto;
}

.nav-brand {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--color-text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-cta {
  background: var(--color-accent);
  color: #fff !important;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px !important;
  transition: background var(--transition) !important;
}

.nav-cta:hover {
  background: var(--color-accent-hover) !important;
}

#auth-buttons {
  display: flex;
  gap: 10px;
  align-items: center;
}

#auth-buttons .btn {
  padding: 6px 16px;
  font-size: 13px;
  border-radius: 20px;
  margin: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform var(--transition), opacity var(--transition);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  background: var(--color-bg-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 113, 227, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 60% 50% at 30% 60%, rgba(48, 213, 200, 0.08) 0%, transparent 60%),
    var(--color-bg-dark);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 24px;
  max-width: 800px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--color-teal);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.05;
  background: linear-gradient(135deg, #ffffff 0%, #c0c0c0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.hero-subtitle {
  font-size: clamp(18px, 3vw, 28px);
  font-weight: 300;
  letter-spacing: 6px;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-tagline {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 300;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  letter-spacing: 4px;
}

.hero-desc {
  font-size: 18px;
  color: var(--color-text-secondary);
  margin-bottom: 40px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

.btn-ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn-ghost:hover {
  background: rgba(0, 113, 227, 0.1);
  transform: scale(1.02);
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}

.scroll-indicator {
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--color-text-secondary);
  border-radius: 2px;
  animation: scrollDown 1.8s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 24px; }
}

/* --- Sections --- */
.section {
  padding: 120px 0;
}

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

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

.section-contact {
  background: linear-gradient(180deg, var(--color-bg-light) 0%, #e8e8ed 100%);
  color: var(--color-text-dark);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-light .section-eyebrow {
  color: var(--color-accent);
}

.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.15;
  margin-bottom: 20px;
}

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

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

.section-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

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

/* --- Product Showcase --- */
.product-showcase {
  text-align: center;
}

.product-image-wrap {
  margin-bottom: 60px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.product-image {
  width: 100%;
  transition: transform 0.6s ease;
}

.product-image-wrap:hover .product-image {
  transform: scale(1.02);
}

.product-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 16px;
  background: var(--color-bg-card);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.stat-number {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- Split Layout --- */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split-layout.reverse {
  direction: rtl;
}

.split-layout.reverse > * {
  direction: ltr;
}

.split-content .section-eyebrow {
  text-align: left;
}

.split-content .section-title {
  text-align: left;
  margin-bottom: 20px;
}

.split-content .section-desc {
  text-align: left;
  margin-bottom: 32px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  color: var(--color-text-secondary);
}

.section-light .feature-list li {
  color: var(--color-text-muted);
}

.feature-list li i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-accent);
  border-radius: 10px;
  font-size: 16px;
  flex-shrink: 0;
}

.split-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.section-dark .split-image {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.split-image img {
  width: 100%;
  transition: transform 0.6s ease;
}

.split-image:hover img {
  transform: scale(1.03);
}

/* --- Hardware Products --- */
.hardware-products {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 80px;
}

.hw-card {
  background: var(--color-bg-white);
  border-radius: 20px;
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.hw-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.hw-image {
  background: linear-gradient(135deg, #f0f0f5, #e8e8ed);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
}

.hw-image img {
  max-height: 200px;
  width: auto;
  object-fit: contain;
}

.hw-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-accent);
  margin: 24px 28px 0;
  align-self: flex-start;
}

.hw-badge-pro {
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  color: #fff;
}

.hw-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin: 12px 28px 0;
}

.hw-tagline {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 6px 28px 0;
}

.hw-specs {
  padding: 20px 28px 8px;
  flex: 1;
}

.hw-spec-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 8px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  font-size: 14px;
}

.hw-spec-row:last-child {
  border-bottom: none;
}

.hw-spec-label {
  color: var(--color-text-muted);
  font-weight: 500;
  flex-shrink: 0;
  min-width: 80px;
}

.hw-spec-value {
  color: var(--color-text-dark);
  font-weight: 500;
  text-align: right;
}

.hw-use-cases {
  padding: 16px 28px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hw-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  background: rgba(0, 113, 227, 0.06);
  color: var(--color-accent);
  font-weight: 500;
}

.hw-comparison {
  margin-top: 20px;
}

.hw-comparison-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-dark);
  text-align: center;
  margin-bottom: 32px;
}

.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 16px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.spec-table thead {
  background: linear-gradient(135deg, #f5f5f7, #e8e8ed);
}

.spec-table th {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text-dark);
  text-align: center;
  border-bottom: 2px solid rgba(0, 0, 0, 0.08);
  white-space: nowrap;
}

.spec-table th:first-child {
  text-align: left;
}

.spec-table td {
  padding: 12px 20px;
  color: var(--color-text-muted);
  text-align: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.spec-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--color-text-dark);
}

.spec-table tbody tr:hover {
  background: rgba(0, 113, 227, 0.02);
}

.spec-table tbody tr:last-child td {
  border-bottom: none;
}

/* --- Software Editions --- */
.software-editions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 80px;
}

.sw-card {
  background: var(--color-bg-card);
  border-radius: 20px;
  padding: 40px 28px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}

.sw-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.sw-card-featured {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, rgba(0, 113, 227, 0.08) 0%, var(--color-bg-card) 40%);
}

.sw-featured-tag {
  position: absolute;
  top: -1px;
  right: 28px;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 0 0 8px 8px;
  letter-spacing: 1px;
}

.sw-badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
  align-self: flex-start;
}

.sw-badge-lite {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-secondary);
}

.sw-badge-std {
  background: rgba(0, 113, 227, 0.15);
  color: var(--color-accent);
}

.sw-badge-pro {
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.2), rgba(48, 213, 200, 0.15));
  color: var(--color-teal);
}

.sw-name {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 8px;
}

.sw-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.sw-price {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sw-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  margin-bottom: 32px;
}

.sw-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.sw-features li i {
  font-size: 12px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border-radius: 50%;
}

.sw-features li .fa-check {
  color: var(--color-teal);
  background: rgba(48, 213, 200, 0.1);
}

.sw-disabled {
  opacity: 0.4;
}

.sw-disabled .fa-xmark {
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.04);
}

.sw-btn {
  width: 100%;
  justify-content: center;
  padding: 12px 24px;
  font-size: 14px;
}

/* --- Feature Matrix --- */
.feature-matrix {
  margin-bottom: 80px;
}

.matrix-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: center;
  margin-bottom: 32px;
}

.matrix-table {
  background: var(--color-bg-card);
  border-color: rgba(255, 255, 255, 0.06);
}

.matrix-table thead {
  background: rgba(255, 255, 255, 0.04);
}

.matrix-table th {
  color: var(--color-text-primary);
  border-bottom-color: rgba(255, 255, 255, 0.1);
}

.matrix-table td {
  color: var(--color-text-secondary);
  border-bottom-color: rgba(255, 255, 255, 0.04);
}

.matrix-table td:first-child {
  color: var(--color-text-primary);
}

.matrix-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.matrix-group td {
  background: rgba(0, 113, 227, 0.06);
  font-weight: 700 !important;
  font-size: 13px !important;
  letter-spacing: 1px;
  color: var(--color-accent) !important;
  text-transform: uppercase;
  padding: 10px 20px !important;
}

.matrix-yes {
  color: var(--color-teal);
  font-size: 16px;
}

.matrix-no {
  color: rgba(255, 255, 255, 0.15);
  font-size: 14px;
}

/* --- Feature Highlights --- */
.feature-highlights {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.fh-card {
  background: var(--color-bg-card);
  border-radius: 16px;
  padding: 32px 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition);
  text-align: center;
}

.fh-card:hover {
  border-color: rgba(0, 113, 227, 0.3);
  transform: translateY(-4px);
}

.fh-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.12), rgba(48, 213, 200, 0.08));
  border-radius: 16px;
  font-size: 24px;
  color: var(--color-accent);
}

.fh-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 10px;
}

.fh-card p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Protocol Grid --- */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 60px;
}

.protocol-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
  cursor: default;
}

.protocol-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.protocol-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.1));
  border-radius: 14px;
  font-size: 24px;
  color: var(--color-accent);
}

.protocol-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text-dark);
}

.protocol-card p {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.protocol-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.protocol-image img {
  width: 100%;
}

/* --- Architecture --- */
.architecture-diagram {
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 60px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.architecture-diagram img {
  width: 100%;
}

.arch-layers {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.arch-layer {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px;
  background: var(--color-bg-card);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all var(--transition);
}

.arch-layer:hover {
  border-color: rgba(0, 113, 227, 0.3);
  background: rgba(17, 17, 17, 0.8);
}

.arch-layer-num {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.6;
  line-height: 1;
  flex-shrink: 0;
}

.arch-layer-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.arch-layer-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Industry Grid --- */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

.industry-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 36px 28px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.industry-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 14px;
  font-size: 22px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.industry-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-dark);
}

.industry-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.industry-carousel-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.industry-carousel {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.industry-slide {
  min-width: 100%;
  position: relative;
}

.industry-slide img {
  width: 100%;
  display: block;
}

.industry-slide-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 40px 32px 24px;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
}

.industry-slide-caption h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.industry-slide-caption p {
  font-size: 0.9rem;
  opacity: 0.85;
}

.industry-carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.industry-carousel-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: #d2d2d7;
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
  padding: 0;
}

.industry-carousel-dots button.active {
  background: var(--color-phc-blue);
  transform: scale(1.3);
}

/* --- About --- */
.about-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 80px;
  align-items: center;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 40px;
}

.value {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 15px;
  color: var(--color-text-primary);
}

.value i {
  color: var(--color-teal);
  font-size: 18px;
}

.about-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.about-logo-wrap {
  width: 200px;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}

.about-logo-wrap img {
  width: 120px;
  height: auto;
  filter: brightness(0) invert(1);
}

.about-slogan {
  font-size: 20px;
  font-weight: 300;
  letter-spacing: 4px;
  color: var(--color-text-secondary);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.contact-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 36px 24px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.contact-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 14px;
  font-size: 24px;
  color: var(--color-accent);
}

.contact-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-dark);
}

.contact-card p {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text-dark);
  margin-bottom: 6px;
}

.contact-note {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-darker);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 30px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.footer-brand img {
  height: 36px;
  filter: brightness(0) invert(1);
}

.footer-brand div {
  display: flex;
  flex-direction: column;
}

.footer-brand strong {
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--color-text-primary);
}

.footer-brand span {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.footer-col a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.footer-legal {
  font-family: var(--font-mono);
  font-size: 11px !important;
  letter-spacing: 1px;
}

.footer-legal a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--color-primary);
}

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-layout.reverse {
    direction: ltr;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

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

  .hardware-products {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .software-editions {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .feature-highlights {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .section {
    padding: 80px 0;
  }

  .hero-title {
    letter-spacing: -1px;
  }

  .product-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .stat {
    padding: 20px 12px;
  }

  .stat-number {
    font-size: 32px;
  }

  .protocol-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .protocol-card {
    padding: 24px 16px;
  }

  .industry-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .arch-layer {
    flex-direction: column;
    gap: 12px;
    padding: 24px;
  }

  .about-values {
    grid-template-columns: 1fr;
  }

  .feature-highlights {
    grid-template-columns: 1fr;
  }

  .hw-image {
    padding: 24px;
    min-height: 180px;
  }

  .hw-spec-row {
    font-size: 13px;
  }

  .sw-card {
    padding: 28px 20px;
  }

  .sw-name {
    font-size: 24px;
  }

  .spec-table th,
  .spec-table td {
    padding: 10px 12px;
    font-size: 13px;
  }

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

  .footer-links {
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .product-stats {
    grid-template-columns: 1fr 1fr;
  }

  .protocol-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }
}

/* --- Free Tools Showcase --- */
.tools-showcase {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.tool-card {
  background: var(--color-bg-card);
  border-radius: 24px;
  padding: 48px 40px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition);
  position: relative;
}

.tool-card:hover {
  border-color: rgba(0, 113, 227, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 113, 227, 0.15);
}

.tool-card-featured {
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px rgba(0, 113, 227, 0.2);
}

.tool-badge {
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  padding: 6px 20px;
  border-radius: 0 0 12px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.tool-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.15), rgba(48, 213, 200, 0.1));
  border-radius: 20px;
  font-size: 36px;
  color: var(--color-accent);
}

.tool-card h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.tool-card .tool-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  line-height: 1.6;
}

.tool-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
  text-align: left;
}

.tool-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--color-text-secondary);
}

.tool-features li i {
  color: var(--color-teal);
  font-size: 16px;
  flex-shrink: 0;
}

.tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 36px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 30px;
  font-size: 16px;
  font-weight: 500;
  transition: all var(--transition);
}

.tool-btn:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

.tool-btn-vip {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #1a1a2e;
}

.tool-btn-vip:hover {
  background: linear-gradient(135deg, #ffed4e, #fff176);
}

.tool-btn-svip {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  color: #fff;
}

.tool-btn-svip:hover {
  background: linear-gradient(135deg, #b96cf8, #7c7cf5);
}

.tool-card p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

.tools-loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 20px;
  color: var(--color-text-secondary);
  font-size: 16px;
}

.tools-loading i {
  margin-right: 8px;
  color: var(--color-accent);
}

.tools-sso-hint {
  text-align: center;
  margin-top: 24px;
  padding: 14px 20px;
  background: rgba(0, 113, 227, 0.08);
  border-radius: 12px;
  border: 1px solid rgba(0, 113, 227, 0.15);
}

.tools-sso-hint p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.tools-sso-hint i {
  color: var(--color-accent);
  margin-right: 6px;
}

/* --- Resource Grid --- */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.resource-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 36px 28px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.resource-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 14px;
  font-size: 24px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.resource-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-dark);
}

.resource-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.resource-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.resource-meta span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.resource-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  align-self: flex-start;
}

.resource-btn:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

/* --- Modal Overlay --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--color-bg-white);
  border-radius: 24px;
  padding: 48px 40px;
  max-width: 480px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
  transform: scale(0.9);
  transition: transform var(--transition);
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-muted);
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition);
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text-dark);
}

.modal-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 8px;
  text-align: center;
}

.modal-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  text-align: center;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-form.hidden {
  display: none;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-dark);
}

.form-group input,
.form-group select {
  padding: 12px 16px;
  border: 1.5px solid rgba(0, 0, 0, 0.1);
  border-radius: 12px;
  font-size: 15px;
  color: var(--color-text-dark);
  background: var(--color-bg-white);
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.input-with-btn {
  display: flex;
  gap: 12px;
}

.input-with-btn input {
  flex: 1;
}

.code-btn {
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.code-btn:hover {
  background: var(--color-accent-hover);
}

.code-btn:disabled {
  background: var(--color-text-muted);
  cursor: not-allowed;
}

.form-btn {
  padding: 14px 32px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 8px;
}

.form-btn:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

.modal-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  font-size: 14px;
}

.modal-links a {
  color: var(--color-accent);
  cursor: pointer;
  transition: color var(--transition);
}

.modal-links a:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    padding: 36px 24px;
  }

  .modal-container {
    padding: 36px 24px;
  }
}

/* --- Resource Categories --- */
.resource-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.resource-cat-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.resource-cat-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
  border-color: var(--color-accent);
}

.resource-cat-card:hover .resource-cat-arrow {
  opacity: 1;
  transform: translateX(0);
}

.resource-cat-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 16px;
  font-size: 28px;
  color: var(--color-accent);
  transition: all var(--transition);
}

.resource-cat-card:hover .resource-cat-icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  color: #fff;
  transform: scale(1.05);
}

.resource-cat-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text-dark);
}

.resource-cat-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.resource-cat-count {
  display: inline-block;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  padding: 4px 12px;
  background: rgba(0, 113, 227, 0.08);
  border-radius: 20px;
}

.resource-cat-arrow {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 14px;
  color: var(--color-accent);
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

/* --- Resource Search --- */
.resource-search {
  margin-bottom: 40px;
  position: relative;
}

.search-input-wrap {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 18px;
  color: var(--color-text-muted);
  pointer-events: none;
}

#resourceSearch {
  width: 100%;
  padding: 16px 50px 16px 52px;
  font-size: 15px;
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: 50px;
  background: var(--color-bg-white);
  transition: all var(--transition);
  font-family: var(--font-sans);
}

#resourceSearch:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(0, 113, 227, 0.12);
}

.search-clear {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  font-size: 24px;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition);
}

.search-clear:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--color-text-dark);
}

.search-results {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 600px;
  max-height: 400px;
  overflow-y: auto;
  background: var(--color-bg-white);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  margin-top: 8px;
  z-index: 100;
}

.search-result-item {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  cursor: pointer;
  transition: background var(--transition);
}

.search-result-item:hover {
  background: rgba(0, 113, 227, 0.04);
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.search-result-icon {
  font-size: 20px;
  color: var(--color-accent);
}

.search-result-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-dark);
}

.search-result-category {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-left: auto;
}

.search-result-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.search-no-results {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 14px;
}

/* --- Resource Detail View --- */
#resourceDetailView {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.resource-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 20px;
  flex-wrap: wrap;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--color-bg-white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 20px;
  font-size: 14px;
  color: var(--color-text-dark);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.back-btn:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.resource-detail-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: var(--color-bg-white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 20px;
  min-width: 280px;
}

.resource-detail-search i {
  color: var(--color-text-muted);
  font-size: 14px;
}

.resource-detail-search input {
  flex: 1;
  border: none;
  background: none;
  font-size: 14px;
  color: var(--color-text-dark);
  font-family: var(--font-sans);
}

.resource-detail-search input:focus {
  outline: none;
}

.resource-detail-content {
  text-align: center;
}

.resource-detail-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 20px;
  font-size: 36px;
  color: var(--color-accent);
}

.resource-detail-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 12px;
}

.resource-detail-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.resource-file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  text-align: left;
}

.resource-file-card {
  background: var(--color-bg-white);
  border-radius: 12px;
  padding: 20px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.resource-file-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
  border-color: var(--color-accent);
}

.resource-file-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.resource-file-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.resource-file-card-icon.pdf {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.resource-file-card-icon.zip {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.resource-file-card-icon.exe {
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-accent);
}

.resource-file-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-dark);
  line-height: 1.4;
  flex: 1;
}

.resource-file-card-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.5;
  flex: 1;
}

.resource-file-images {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.resource-image-wrapper {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.resource-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.2s;
}

.resource-image-wrapper:hover img {
  transform: scale(1.1);
}

.image-preview-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
  font-size: 16px;
}

.resource-image-wrapper:hover .image-preview-icon {
  opacity: 1;
}

.image-preview-icon:hover {
  background: rgba(0, 113, 227, 0.8);
  transform: translate(-50%, -50%) scale(1.1);
}

/* Image Preview Modal */
.image-preview-container {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.image-preview-container img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.preview-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
}

.preview-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
}

.preview-counter {
  color: white;
  font-size: 14px;
  min-width: 60px;
  text-align: center;
}

.resource-file-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.resource-file-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-muted);
}

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

.resource-file-download-btn {
  padding: 8px 16px;
  border-radius: 16px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.resource-file-download-btn.free {
  background: var(--color-accent);
  color: #fff;
}

.resource-file-download-btn.free:hover {
  background: var(--color-accent-hover);
}

.resource-file-download-btn.vip {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #1a1a2e;
}

.resource-file-download-btn.vip:hover {
  transform: scale(1.02);
}

.resource-file-download-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.resource-file-download-btn.svip {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  color: #fff;
}

.resource-file-download-btn.svip:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 16px rgba(168, 85, 247, 0.3);
}

.resource-file-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.access-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}

.access-badge.free {
  background: rgba(48, 213, 200, 0.15);
  color: var(--color-teal);
}

.access-badge.vip {
  background: rgba(255, 215, 0, 0.15);
  color: #ffd700;
}

.access-badge.svip {
  background: rgba(168, 85, 247, 0.15);
  color: #a855f7;
}

/* --- VIP Banner --- */
.vip-banner {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-radius: 20px;
  padding: 4px;
  margin-top: 24px;
}

.vip-banner-content {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
  border-radius: 16px;
  padding: 40px;
  display: flex;
  align-items: center;
  gap: 32px;
  position: relative;
  overflow: hidden;
}

.vip-banner-content::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.vip-badge-large {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  border-radius: 20px;
  font-size: 32px;
  color: #1a1a2e;
  flex-shrink: 0;
  box-shadow: 0 8px 24px rgba(255, 215, 0, 0.3);
}

.vip-text {
  flex: 1;
}

.vip-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: #ffd700;
  margin-bottom: 8px;
}

.vip-text p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
}

.vip-banner .btn-primary {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #1a1a2e;
  font-weight: 600;
  flex-shrink: 0;
}

.vip-banner .btn-primary:hover {
  background: linear-gradient(135deg, #ffed4e, #ffd700);
  transform: scale(1.02);
}

/* --- Resource Detail Panel --- */
.resource-panel-container {
  background: var(--color-bg-white);
  border-radius: 24px;
  padding: 40px;
  max-width: 720px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
  transform: scale(0.9);
  transition: transform var(--transition);
}

.modal-overlay.active .resource-panel-container {
  transform: scale(1);
}

.resource-panel-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.resource-panel-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  border-radius: 14px;
  font-size: 24px;
  color: #fff;
  flex-shrink: 0;
}

.resource-panel-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 4px;
}

.resource-panel-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

.resource-file-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.resource-file-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: #f8f9fa;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  transition: all var(--transition);
}

.resource-file-item:hover {
  background: #f0f2f5;
  border-color: var(--color-accent);
}

.resource-file-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 18px;
  flex-shrink: 0;
}

.resource-file-icon.pdf {
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
}

.resource-file-icon.zip {
  background: rgba(0, 113, 227, 0.1);
  color: var(--color-accent);
}

.resource-file-icon.exe {
  background: rgba(40, 167, 69, 0.1);
  color: #28a745;
}

.resource-file-info {
  flex: 1;
  min-width: 0;
}

.resource-file-name {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-dark);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.resource-file-meta {
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 12px;
}

.resource-file-vip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  color: #ffd700;
  background: rgba(255, 215, 0, 0.1);
  padding: 2px 8px;
  border-radius: 10px;
}

.resource-file-download {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}

.resource-file-download:hover {
  background: var(--color-accent-hover);
  transform: scale(1.02);
}

.resource-file-download.vip-only {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #1a1a2e;
}

.resource-file-download.vip-only:hover {
  background: linear-gradient(135deg, #ffed4e, #ffd700);
}

.resource-file-download:disabled {
  background: #ccc;
  cursor: not-allowed;
  transform: none;
}

/* --- Admin Panel --- */
.admin-panel-container {
  background: var(--color-bg-white);
  border-radius: 24px;
  padding: 48px 40px;
  max-width: 520px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.3);
  transform: scale(0.9);
  transition: transform var(--transition);
}

.modal-overlay.active .admin-panel-container {
  transform: scale(1);
}

/* --- Admin Button (hidden in nav, accessible via keyboard shortcut or URL) --- */
.admin-trigger {
  display: none;
}

@media (max-width: 1024px) {
  .resource-categories {
    grid-template-columns: repeat(2, 1fr);
  }

  .vip-banner-content {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
  }

  .vip-text h3 {
    font-size: 20px;
  }
}

@media (max-width: 768px) {
  .resource-categories {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .resource-panel-container {
    padding: 28px 20px;
  }

  .resource-panel-header {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .resource-file-item {
    flex-direction: column;
    text-align: center;
    gap: 12px;
    padding: 20px 16px;
  }

  .resource-file-meta {
    justify-content: center;
  }

  .resource-file-download {
    width: 100%;
    justify-content: center;
  }

  .admin-panel-container {
    padding: 32px 20px;
  }
}

/* --- Resource Statistics --- */
.resource-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.resource-stat-card {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
}

.resource-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
  border-color: var(--color-accent);
}

.resource-stat-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(48, 213, 200, 0.08));
  border-radius: 12px;
  font-size: 20px;
  color: var(--color-accent);
}

.resource-stat-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.resource-stat-label {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* --- Top Users --- */
.resource-top-users {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 28px 32px;
  margin-bottom: 32px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.resource-top-users-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 20px;
}

.resource-top-users-title i {
  color: #ffd700;
  margin-right: 8px;
}

.resource-top-users-list {
  display: flex;
  gap: 16px;
}

.resource-top-user-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.04), rgba(48, 213, 200, 0.03));
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.resource-top-user-rank {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.resource-top-user-rank.rank-1 {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #1a1a2e;
}

.resource-top-user-rank.rank-2 {
  background: linear-gradient(135deg, #c0c0c0, #e0e0e0);
  color: #333;
}

.resource-top-user-rank.rank-3 {
  background: linear-gradient(135deg, #cd7f32, #daa520);
  color: #fff;
}

.resource-top-user-info {
  flex: 1;
}

.resource-top-user-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-dark);
}

.resource-top-user-phone {
  font-size: 12px;
  color: var(--color-text-muted);
}

.resource-top-user-count {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
}

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

  .resource-top-users-list {
    flex-direction: column;
  }

  .resource-stat-num {
    font-size: 24px;
  }
}

/* --- Resource Analytics --- */
.resource-analytics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.analytics-section {
  background: var(--color-bg-white);
  border-radius: 16px;
  padding: 28px;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.analytics-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-dark);
  margin-bottom: 20px;
}

.analytics-title i {
  color: var(--color-accent);
  margin-right: 8px;
}

.analytics-bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.analytics-bar-label {
  width: 80px;
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: right;
  flex-shrink: 0;
}

.analytics-bar-track {
  flex: 1;
  height: 20px;
  background: rgba(0, 113, 227, 0.06);
  border-radius: 10px;
  overflow: hidden;
}

.analytics-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
  border-radius: 10px;
  transition: width 0.6s ease;
  min-width: 4px;
}

.analytics-bar-count {
  width: 40px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-dark);
  text-align: right;
}

.analytics-ip-summary {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.analytics-ip-summary strong {
  color: var(--color-accent);
  font-size: 18px;
}

.analytics-ip-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.analytics-ip-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.02);
  border-radius: 8px;
  font-size: 13px;
}

.analytics-ip-item .ip-rank {
  color: var(--color-text-muted);
  font-weight: 600;
  width: 28px;
}

.analytics-ip-item .ip-addr {
  flex: 1;
  font-family: 'SF Mono', 'Monaco', 'Consolas', monospace;
  color: var(--color-text-dark);
}

.analytics-ip-item .ip-count {
  color: var(--color-accent);
  font-weight: 600;
}

@media (max-width: 768px) {
  .resource-analytics {
    grid-template-columns: 1fr;
  }
}

/* --- Resource Pagination --- */
.resource-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.page-btn {
  padding: 8px 16px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: var(--color-bg-white);
  border-radius: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.page-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.page-btn.active {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.page-info {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-left: 12px;
}