/* ============================================
   Theme Variables
   ============================================ */
:root {
  --bg: #0a0a10;
  --bg-soft: #12121c;
  --text: #e8e8f0;
  --text-dim: rgba(232, 232, 240, 0.62);
  --text-faint: rgba(232, 232, 240, 0.38);
  --card: rgba(255, 255, 255, 0.035);
  --card-hover: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(129, 140, 248, 0.55);
  --shadow: rgba(0, 0, 0, 0.5);
  --shadow-hover: rgba(129, 140, 248, 0.18);
  --nav-bg: rgba(10, 10, 16, 0.62);
  --drawer-bg: rgba(14, 14, 22, 0.96);
  --grad-a: #818cf8;
  --grad-b: #f472b6;
  --glow-a: rgba(129, 140, 248, 0.22);
  --glow-b: rgba(244, 114, 182, 0.18);
  --accent-text: #ffffff;
}

[data-theme="light"] {
  --bg: #f7f7fb;
  --bg-soft: #ffffff;
  --text: #1a1a24;
  --text-dim: rgba(26, 26, 36, 0.66);
  --text-faint: rgba(26, 26, 36, 0.42);
  --card: rgba(0, 0, 0, 0.025);
  --card-hover: rgba(0, 0, 0, 0.045);
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(129, 140, 248, 0.6);
  --shadow: rgba(80, 80, 120, 0.12);
  --shadow-hover: rgba(129, 140, 248, 0.22);
  --nav-bg: rgba(247, 247, 251, 0.7);
  --drawer-bg: rgba(255, 255, 255, 0.97);
  --glow-a: rgba(129, 140, 248, 0.28);
  --glow-b: rgba(244, 114, 182, 0.22);
  --accent-text: #ffffff;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", Roboto, "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  transition: background-color 0.45s ease, color 0.45s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

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

img {
  max-width: 100%;
  display: block;
  -webkit-user-drag: none;
  user-select: none;
}

/* ============================================
   Scrollbar
   ============================================ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ============================================
   Selection
   ============================================ */
::selection {
  background: rgba(129, 140, 248, 0.35);
}

/* ============================================
   View Transitions - Theme Toggle
   ============================================ */
::view-transition-old(root),
::view-transition-new(root) {
  animation: none;
  mix-blend-mode: normal;
}

::view-transition-old(root) { z-index: 1; }
::view-transition-new(root) { z-index: 2; }

/* ============================================
   Navigation Bar
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.45s ease, border-color 0.45s ease;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-logo {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  object-fit: cover;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(129, 140, 248, 0.3);
  animation: logoBounce 8s ease-in-out infinite;
  transform-origin: center;
  will-change: transform;
}

.nav-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  display: inline-block;
  animation: titleFloat 2.4s ease-in-out infinite;
  will-change: transform;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-link {
  position: relative;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.25s, background-color 0.25s;
  background: transparent;
  border: none;
  font-family: inherit;
}

.nav-link:hover {
  color: var(--text);
  background: var(--card);
}

.nav-link.active {
  color: var(--text);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  left: 50%; bottom: 0;
  transform: translateX(-50%);
  width: 16px; height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--grad-a), var(--grad-b));
}

/* Theme Toggle Button */
.theme-toggle {
  position: relative;
  width: 40px; height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  overflow: hidden;
  transition: background-color 0.25s, border-color 0.25s, transform 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle:hover {
  background: var(--card-hover);
  border-color: var(--border-hover);
}

.theme-toggle:active {
  transform: scale(0.94);
}

.theme-icon {
  width: 19px; height: 19px;
  position: absolute;
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
}

.theme-icon.sun {
  opacity: 0;
  transform: scale(0.5) rotate(-90deg);
}

.theme-icon.moon {
  opacity: 1;
  transform: scale(1) rotate(0);
}

[data-theme="light"] .theme-icon.sun {
  opacity: 1;
  transform: scale(1) rotate(0);
}

[data-theme="light"] .theme-icon.moon {
  opacity: 0;
  transform: scale(0.5) rotate(90deg);
}

/* Hamburger Menu */
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  transition: background-color 0.25s, border-color 0.25s;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle:hover {
  background: var(--card-hover);
}

.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  border-radius: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px; height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.3s;
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* ============================================
   Page Container
   ============================================ */
.page-container {
  height: 100vh;
  width: 100vw;
  overflow-y: scroll;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
  position: relative;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-container::-webkit-scrollbar { display: none; }

/* ============================================
   Page Sections
   ============================================ */
.page-section {
  position: relative;
  min-height: 100vh;
  scroll-snap-align: start;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}

.section-content {
  width: 100%;
  max-width: 1200px;
  position: relative;
  z-index: 2;
}

/* Glow Orbs */
.section-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.85;
  will-change: transform;
}

.orb-1, .orb-4, .orb-6, .orb-9, .orb-11 {
  width: 520px; height: 520px;
  background: var(--glow-a);
  top: -12%; left: -8%;
  animation: floatA 18s ease-in-out infinite;
}

.orb-2, .orb-5, .orb-7, .orb-10, .orb-12 {
  width: 460px; height: 460px;
  background: var(--glow-b);
  bottom: -14%; right: -10%;
  animation: floatB 22s ease-in-out infinite;
}

.orb-3, .orb-8 {
  display: none;
}

@keyframes floatA {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.12); }
}

@keyframes floatB {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-70px, -50px) scale(1.15); }
}

/* ============================================
   Section Content Common
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 14px;
  opacity: 0.85;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text-dim);
}

.section-title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 14px;
}

.text-accent {
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  font-size: clamp(14px, 1.6vw, 16px);
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 26px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.title-line {
  font-size: clamp(38px, 7vw, 78px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.title-line.accent {
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(15px, 1.8vw, 19px);
  color: var(--text-dim);
  max-width: 560px;
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  border-radius: 999px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.3s, background-color 0.3s, border-color 0.3s, color 0.3s;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  color: var(--accent-text);
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  box-shadow: 0 10px 30px -8px rgba(129, 140, 248, 0.55);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -10px rgba(244, 114, 182, 0.6);
}

.btn-primary:active {
  transform: translateY(-1px) scale(0.98);
}

.btn-outline {
  color: var(--text);
  background: var(--card);
  border-color: var(--border);
}

.btn-outline:hover {
  transform: translateY(-3px);
  background: var(--card-hover);
  border-color: var(--border-hover);
}

.btn-outline:active {
  transform: translateY(-1px) scale(0.98);
}

/* ============================================
   About Grid
   ============================================ */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.about-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease;
  will-change: transform;
}

.about-card:hover {
  transform: translateY(-8px);
  background: var(--card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 24px 60px -18px var(--shadow-hover), 0 0 0 1px var(--border-hover);
}

.about-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.18), rgba(244, 114, 182, 0.18));
  border: 1px solid var(--border);
  color: var(--grad-a);
}

.about-icon svg {
  width: 24px; height: 24px;
}

.about-card h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.about-card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ============================================
   Quotes Grid
   ============================================ */
.quotes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.quote-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px 26px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease;
  will-change: transform;
}

.quote-card:hover {
  transform: translateY(-8px);
  background: var(--card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 24px 60px -18px var(--shadow-hover), 0 0 0 1px var(--border-hover);
}

.quote-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--grad-a), var(--grad-b));
  opacity: 0;
  transition: opacity 0.4s ease;
}

.quote-card:hover::before {
  opacity: 1;
}

.quote-mark {
  font-size: 56px;
  line-height: 0.7;
  font-family: Georgia, serif;
  font-weight: 700;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  opacity: 0.9;
  user-select: none;
}

.quote-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  flex: 1;
}

.quote-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.quote-author {
  font-size: 13px;
  color: var(--text-faint);
  font-weight: 500;
}

.quote-category {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 11px;
  border-radius: 999px;
  color: var(--grad-a);
  background: rgba(129, 140, 248, 0.12);
  border: 1px solid rgba(129, 140, 248, 0.25);
  white-space: nowrap;
}

/* ============================================
   Gallery Grid
   ============================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.45s ease,
              border-color 0.45s ease;
  will-change: transform;
}

.gallery-item:hover {
  transform: translateY(-8px) scale(1.015);
  border-color: var(--border-hover);
  box-shadow: 0 26px 60px -18px var(--shadow-hover);
}

.gallery-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  pointer-events: none;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.gallery-item:hover .gallery-img {
  transform: scale(1.08);
}

.gallery-index {
  display: none;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.78) 0%, rgba(0, 0, 0, 0.35) 45%, transparent 75%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay h4 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
  transform: translateY(10px);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.gallery-overlay p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.6;
  transform: translateY(10px);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1) 0.05s;
}

.gallery-item:hover .gallery-overlay h4,
.gallery-item:hover .gallery-overlay p {
  transform: translateY(0);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              background-color 0.4s ease,
              border-color 0.4s ease,
              box-shadow 0.4s ease;
  will-change: transform;
}

.contact-card:hover {
  transform: translateY(-8px);
  background: var(--card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 24px 60px -18px var(--shadow-hover), 0 0 0 1px var(--border-hover);
}

.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(129, 140, 248, 0.18), rgba(244, 114, 182, 0.18));
  border: 1px solid var(--border);
  color: var(--grad-a);
  flex-shrink: 0;
}

.contact-icon svg {
  width: 20px; height: 20px;
}

.contact-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.contact-card p {
  font-size: 13.5px;
  color: var(--text-dim);
  line-height: 1.7;
}

.contact-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--grad-a);
  transition: opacity 0.25s;
}

.contact-link:hover {
  opacity: 0.8;
}

.contact-link.status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 600;
  color: #4ade80;
  margin-top: 4px;
}

.contact-link.status::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: statusPulse 2s ease-out infinite;
}

@keyframes statusPulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

/* ============================================
   Site Footer (Enterprise Style)
   ============================================ */
.site-footer {
  position: relative;
  z-index: 10;
  margin-top: -1px;
  pointer-events: auto;
  scroll-snap-align: start;
}

/* ── Wave Divider ────────────────────────── */
.footer-wave {
  position: relative;
  height: 80px;
  overflow: hidden;
  color: var(--bg-soft);
  pointer-events: none;
  margin-bottom: -2px;
}

.wave-svg {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  fill: currentColor;
}

/* ── Main Content Area ──────────────────── */
.footer-main {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
  transition: background-color 0.45s ease, border-color 0.45s ease;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── Brand Column ───────────────────────── */
.footer-col-brand {
  gap: 16px;
}

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

.footer-brand-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
  max-width: 380px;
}

/* ── Social Links ───────────────────────── */
.footer-social {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  background: var(--card);
  transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.social-link svg {
  width: 17px;
  height: 17px;
}

.social-link:hover {
  color: var(--grad-a);
  border-color: var(--border-hover);
  background: var(--card-hover);
  transform: translateY(-2px);
}

/* ── Column Titles ──────────────────────── */
.footer-col-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 2px;
}

/* ── Link Lists ─────────────────────────── */
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

.footer-link-text {
  font-size: 14px;
  color: var(--text-faint);
}

/* ── Bottom Bar ─────────────────────────── */
.footer-bottom {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 16px 0;
  transition: background-color 0.45s ease, border-color 0.45s ease;
}

.footer-bottom-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copyright {
  font-size: 12px;
  color: var(--text-faint);
}

.beian-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-faint);
  text-decoration: none;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  transition: color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
}

.beian-link:hover {
  color: var(--text-dim);
  border-color: var(--border-hover);
  background: var(--card-hover);
  transform: translateY(-1px);
}

.beian-link:active {
  transform: translateY(0) scale(0.97);
}

.beian-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  opacity: 0.7;
}

/* ── Tablet ──────────────────────────── */
@media (max-width: 1199px) and (min-width: 768px) {
  .footer-content {
    padding: 0 32px;
    gap: 36px;
  }

  .footer-bottom-inner {
    padding: 0 32px;
  }
}

/* ── Mobile ─────────────────────────────── */
@media (max-width: 767px) {
  .footer-wave {
    height: 50px;
  }

  .footer-main {
    padding: 40px 0 28px;
  }

  .footer-content {
    padding: 0 20px;
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-col-brand {
    gap: 12px;
  }

  .footer-brand-desc {
    max-width: 100%;
  }

  .footer-bottom {
    padding: 14px 0;
  }

  .footer-bottom-inner {
    padding: 0 20px;
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 150;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-dim);
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px) scale(0.9);
  pointer-events: none;
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease,
              box-shadow 0.3s ease;
  -webkit-tap-highlight-color: transparent;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.back-to-top:hover {
  color: var(--accent-text);
  border-color: var(--border-hover);
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b));
  box-shadow: 0 8px 28px -6px rgba(129, 140, 248, 0.45);
  transform: translateY(-3px);
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

.back-to-top:active {
  transform: translateY(0) scale(0.92);
}

/* ── Mobile ──────────────────────────── */
@media (max-width: 767px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border-radius: 12px;
  }

  .back-to-top svg {
    width: 18px;
    height: 18px;
  }
}

/* ============================================
   Card Hover Effect (Shared)
   ============================================ */
.card-hover {
  will-change: transform;
}

.card-spotlight {
  position: relative;
  overflow: hidden;
}

.card-spotlight::before {
  content: '';
  position: absolute;
  top: var(--mouse-y, 50%);
  left: var(--mouse-x, 50%);
  width: 300px;
  height: 300px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(129, 140, 248, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0;
  transition: opacity 0.3s ease;
  will-change: transform, opacity;
}

.card-spotlight:hover::before {
  opacity: 1;
}

.card-spotlight > * {
  position: relative;
  z-index: 1;
}

/* ============================================
   Page Transition Overlay
   ============================================ */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(ellipse at center, rgba(129, 140, 248, 0.08) 0%, transparent 70%);
  backdrop-filter: blur(40px) saturate(0.6);
  -webkit-backdrop-filter: blur(40px) saturate(0.6);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-transition.active {
  opacity: 1;
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes cardEntrance {
  from { opacity: 0; transform: translateY(40px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── Logo bounce + spin animation ────────────── */
@keyframes logoBounce {
  /* ---- First two bounces (0%–46%) ---- */
  0%     { transform: translateY(0) scale(1) rotate(0deg); }
  11.5%  { transform: translateY(-6px) scale(1.04) rotate(0deg); }
  23%    { transform: translateY(0) scale(1) rotate(0deg); }
  34.5%  { transform: translateY(-6px) scale(1.04) rotate(0deg); }
  46%    { transform: translateY(0) scale(1) rotate(0deg); }

  /* ---- Clockwise 360° (46%–50%) ---- */
  48%    { transform: translateY(0) scale(1) rotate(180deg); }
  50%    { transform: translateY(0) scale(1) rotate(360deg); }

  /* ---- Second two bounces (50%–96%) ---- */
  61.5%  { transform: translateY(-6px) scale(1.04) rotate(360deg); }
  73%    { transform: translateY(0) scale(1) rotate(360deg); }
  84.5%  { transform: translateY(-6px) scale(1.04) rotate(360deg); }
  96%    { transform: translateY(0) scale(1) rotate(360deg); }

  /* ---- Counter-clockwise 360° (96%–100%) ---- */
  98%    { transform: translateY(0) scale(1) rotate(180deg); }
  100%   { transform: translateY(0) scale(1) rotate(0deg); }
}

/* ─── Title float (gentle breathing) ──────────── */
@keyframes titleFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}

/* ============================================
   Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .page-container { scroll-behavior: auto; }
  ::view-transition-old(root),
  ::view-transition-new(root) { animation: none !important; }
  .nav-logo { animation: none; }
  .nav-title { animation: none; }
}

/* ============================================
   TABLET (768px - 1199px)
   ============================================ */
@media (max-width: 1199px) and (min-width: 768px) {
  .about-grid,
  .quotes-grid,
  .gallery-grid,
  .contact-container {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-section {
    padding: 110px 32px 70px;
  }

  .navbar {
    padding: 0 24px;
  }

  .bg-orb {
    filter: blur(70px);
  }

  .orb-1, .orb-4, .orb-6, .orb-9, .orb-11 {
    width: 400px; height: 400px;
  }

  .orb-2, .orb-5, .orb-7, .orb-10, .orb-12 {
    width: 360px; height: 360px;
  }
}

/* ============================================
   MOBILE (< 768px)
   ============================================ */
@media (max-width: 767px) {
  .navbar {
    height: 60px;
    padding: 0 16px;
  }

  .nav-title {
    font-size: 15px;
  }

  .nav-logo {
    width: 30px; height: 30px;
  }

  .nav-links {
    display: none;
  }

  .nav-links.open {
    display: flex;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 16px 20px;
    background: var(--drawer-bg);
    backdrop-filter: blur(24px) saturate(1.8);
    -webkit-backdrop-filter: blur(24px) saturate(1.8);
    border-bottom: 1px solid var(--border);
    z-index: 99;
  }

  .nav-links.open .nav-link {
    width: 100%;
    text-align: center;
    padding: 12px 14px;
    font-size: 15px;
  }

  .nav-links.open .nav-link.active::after {
    display: none;
  }

  .nav-links.open .nav-link.active {
    background: var(--card);
    border-radius: 8px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .page-section {
    padding: 100px 20px 60px;
  }

  .page-container {
    scroll-snap-type: none;
  }

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

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .gallery-item {
    aspect-ratio: 16 / 10;
  }

  .contact-container {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .quote-text {
    font-size: 15px;
  }

  .bg-orb {
    filter: blur(70px);
    opacity: 0.6;
  }

  .orb-1, .orb-4, .orb-6, .orb-9, .orb-11 {
    width: 280px; height: 280px;
  }

  .orb-2, .orb-5, .orb-7, .orb-10, .orb-12 {
    width: 260px; height: 260px;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .about-card,
  .quote-card,
  .contact-card {
    border-radius: 16px;
  }

  .about-card { padding: 26px 22px; }
  .quote-card { padding: 26px 22px 20px; }
  .contact-card { padding: 26px 22px; }

  .page-transition {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
}

/* ============================================
   SMALL MOBILE (< 480px)
   ============================================ */
@media (max-width: 480px) {
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .gallery-img {
    width: 100%;
    height: 100%;
  }

  .gallery-overlay {
    padding: 16px;
  }

  .gallery-overlay h4 {
    font-size: 16px;
  }

  .gallery-overlay p {
    font-size: 12px;
  }
}

/* ============================================
   Performance: GPU Acceleration
   ============================================ */
.card-hover,
.gallery-img,
.bg-orb,
.navbar,
.nav-links {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}