/* Navbar Base Styles */
.navbar {
  position: fixed;
  top: 2rem;
  left: 2rem;
  right: 2rem;
  z-index: 1000;
  background: rgba(20, 20, 20, 0.4);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-radius: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
  transform-origin: center top;
}

.navbar.navbar-hidden {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

.navbar.navbar-homepage {
  background: rgba(20, 20, 20, 0.6);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.navbar_container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

.navbar_unified {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.75rem 1.5rem;
  gap: 1.5rem;
  min-height: 60px;
  border-radius: 2rem;
  background: transparent;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
}

.navbar_unified:hover {
  background: rgba(255, 255, 255, 0.02);
  transform: translateY(-1px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.navbar_brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.navbar_logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar_logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

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

.navbar_brand-text {
  font-size: 1.375rem;
  font-weight: 800;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.03em;
  transition: color 0.3s ease;
}

.navbar_links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-grow: 1;
  justify-content: center;
}

.navigation-menu {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.navigation-menu li {
  position: relative;
  margin: 0;
  padding: 0;
}

.navbar_social {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.navbar_social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: transparent;
  transition: all 0.3s ease;
  text-decoration: none;
}

.navbar_social-link:hover {
  background: transparent;
  transform: translateY(-2px);
}

.navbar_social-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.navbar_link-block {
  display: flex;
  align-items: center;
  padding: 0.625rem 1.25rem;
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  border-radius: 1.25rem;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.navbar_link-mask {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}

.navbar_link-fill {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
}

.navbar_link-block:hover .navbar_link-fill {
  transform: translateX(0);
}

.menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0;
  z-index: 1002;
}

.menu-button:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

.menu-button:active {
  transform: scale(0.95);
}

.menu_icon-wrapper {
  position: relative;
  width: 20px;
  height: 18px;
}

.menu-icon-line {
  position: absolute;
  width: 18px;
  height: 2.5px;
  background-color: #fff;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 2px;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

.menu-icon-line.is-top {
  top: 6px;
  transform: translateX(-50%);
}

.menu-icon-line.is-middle {
  top: 50%;
  transform: translate(-50%, -50%);
}

.menu-icon-line.is-bot {
  bottom: 6px;
  transform: translateX(-50%);
}

/* Hamburger Menu Animation - Based on Template Best Practices */
.menu-button.active .menu-icon-line.is-top {
  top: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}

.menu-button.active .menu-icon-line.is-middle {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0);
}

.menu-button.active .menu-icon-line.is-bot {
  bottom: 50%;
  transform: translate(-50%, 50%) rotate(-45deg);
}

/* Enhanced Navigation Responsive Design - Based on Template Best Practices */

/* Large Screen Optimization (1200px+) */
@media (min-width: 1200px) {
    .navbar_container {
        padding: 0 2.5rem;
    }
    
    .navbar_unified {
        padding: 0.875rem 2rem;
        gap: 2rem;
    }
    
    .navbar_links {
        gap: 2rem;
    }
    
    .navigation-menu {
        gap: 1rem;
    }
    
    .navbar_link-block {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        letter-spacing: -0.025em;
    }
    
    .navbar_logo-img {
        width: 40px;
        height: 40px;
    }
    
    .navbar_brand-text {
        font-size: 1.5rem;
    }
    
    .navbar_social {
        gap: 1rem;
    }
    
    .navbar_social-link {
        width: 40px;
        height: 40px;
    }
    
    .navbar_social-icon {
        width: 20px;
        height: 20px;
    }
}

/* Medium Screen (992px - 1199px) - Compact Mode */
@media (min-width: 992px) and (max-width: 1199.98px) {
    .navbar {
        top: 1.5rem;
        left: 1.5rem;
        right: 1.5rem;
    }
    
    .navbar_container {
        padding: 0 2rem;
    }
    
    .navbar_unified {
        padding: 0.625rem 1.25rem;
        gap: 1.25rem;
        min-height: 56px;
    }
    
    .navbar_links {
        gap: 1.25rem;
    }
    
    .navigation-menu {
        gap: 0.625rem;
    }
    
    .navbar_link-block {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
        letter-spacing: -0.01em;
    }
    
    .navbar_logo-img {
        width: 32px;
        height: 32px;
    }
    
    .navbar_brand-text {
        font-size: 1.25rem;
    }
    
    .navbar_social {
        gap: 0.5rem;
    }
    
    .navbar_social-link {
        width: 32px;
        height: 32px;
    }
    
    .navbar_social-icon {
        width: 16px;
        height: 16px;
    }
}

/* Large Tablet Navigation (768px - 991px) - Further Compression */
@media (min-width: 768px) and (max-width: 991.98px) {
    .navbar {
        width: calc(100% - 1.5rem);
        top: 0.75rem;
        left: 0.75rem;
        right: 0.75rem;
    }
    
    .navbar_unified {
        padding: 0.5rem 1rem;
        gap: 1rem;
        min-height: 52px;
    }
    
    .navbar_container {
        padding: 0 1rem;
    }
    
    .navbar_links {
        gap: 1rem;
    }
    
    .navigation-menu {
        gap: 0.5rem;
    }
    
    .navbar_link-block {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
        letter-spacing: -0.015em;
    }
    
    .navbar_logo-img {
        width: 30px;
        height: 30px;
    }
    
    .navbar_brand-text {
        font-size: 1.125rem;
    }
    
    .navbar_social {
        gap: 0.5rem;
    }
    
    .navbar_social-link {
        width: 30px;
        height: 30px;
    }
    
    .navbar_social-icon {
        width: 15px;
        height: 15px;
    }
}

/* Tablet Navigation (576px - 767px) - Changed to Sidebar Menu */
@media (min-width: 576px) and (max-width: 767.98px) {
    .navbar {
        width: calc(100% - 1.5rem);
        top: 0.75rem;
        left: 0.75rem;
        right: 0.75rem;
    }
    
    .navbar_unified {
        padding: 0.625rem 1.25rem;
        gap: 1rem;
        min-height: 56px;
    }
    
    .navbar_container {
        padding: 0 1.25rem;
    }
    
    .navbar_links {
        position: fixed;
        top: 0;
        right: 0; /* Slide out from right */
        width: min(80vw, 320px); /* Responsive width */
        height: 100vh;
        background: rgba(20, 20, 20, 0.9); /* More refined background */
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        flex-direction: column;
        justify-content: flex-start; /* Content starts from top */
        gap: 0.5rem;
        padding: 6rem 2rem 2rem; /* Top space reserved */
        transform: translateX(100%); /* Hidden on right by default */
        opacity: 1; /* No longer controlled by opacity */
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1001;
    }
    
    .navbar_links.show {
        transform: translateX(0); /* Slide into screen */
        visibility: visible;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    }
    
    .navigation-menu {
        flex-direction: column;
        gap: 0.5rem;
        width: 100%;
        align-items: flex-start; /* Links left aligned */
    }
    
    .navbar_link-block {
        width: 100%;
        text-align: left; /* Text left aligned */
        padding: 0.75rem 1rem;
        font-size: 1.1rem;
        border-radius: 0.75rem;
        margin-bottom: 0.5rem;
        background: transparent; /* Button background transparent */
        border: none;
    }
    
    .navbar_link-block:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: none;
        box-shadow: none;
    }
    
    .navbar_social {
        display: none;
    }

    .menu-button {
        display: flex;
        z-index: 1002;
    }
    
    .navbar_brand-text {
        font-size: 1.125rem;
    }
    
    .navbar_logo-img {
        width: 32px;
        height: 32px;
    }
}

/* Mobile Navigation (575px and below) - Changed to Sidebar Menu */
@media (max-width: 575.98px) {
    .navbar {
        width: calc(100% - 1rem);
        top: 0.5rem;
        left: 0.5rem;
        right: 0.5rem;
    }
    
    .navbar_unified {
        padding: 0.5rem 1rem;
        gap: 0.75rem;
        min-height: 52px;
    }
    
    .navbar_container {
        padding: 0 1rem;
    }
    
    .navbar_logo-img {
        width: 28px;
        height: 28px;
    }
    
    .navbar_brand-text {
        font-size: 1rem;
    }
    
    .navbar_links {
        position: fixed;
        top: 0;
        right: 0; /* Slide out from right */
        width: min(85vw, 300px); /* Responsive width */
        height: 100vh;
        background: rgba(15, 15, 15, 0.85); /* More concise background */
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start; /* Content starts from top */
        gap: 0.25rem;
        padding: 5rem 1.5rem 1.5rem; /* Top space reserved */
        transform: translateX(100%); /* Hidden on right by default */
        opacity: 1; /* No longer controlled by opacity */
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1001;
        border: none;
    }
    
    .navbar_links.show {
        transform: translateX(0); /* Slide into screen */
        visibility: visible;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    }
    
    .navigation-menu {
        flex-direction: column;
        gap: 0.25rem;
        width: 100%;
        align-items: flex-start; /* Links left aligned */
    }
    
    .navbar_link-block {
        width: 100%;
        text-align: left; /* Text left aligned */
        padding: 0.75rem 1rem;
        font-size: 1rem;
        border-radius: 0.5rem;
        margin-bottom: 0.25rem;
        background: transparent; /* Button background transparent */
        border: none;
    }
    
    .navbar_link-block:hover,
    .navbar_link-block:focus {
        background: rgba(255, 255, 255, 0.1);
        transform: none;
        box-shadow: none;
    }
    
    .navbar_social {
        display: none;
    }
    
    .menu-button {
        display: flex;
        width: 36px;
        height: 36px;
        z-index: 1002;
    }
    
    .menu_icon-wrapper {
        width: 18px;
        height: 16px;
    }
    
    .menu-icon-line {
        width: 16px;
        height: 2px;
    }
}

/* Landscape Mode Optimization */
@media (orientation: landscape) and (max-height: 600px) {
    .navbar {
        top: 0.5rem;
    }
    
    .navbar_unified {
        padding: 0.5rem 1.5rem;
        min-height: 48px;
    }
    
    .navbar_links.show {
        padding: 1rem 0;
    }
    
    .navbar_link-block {
        padding: 0.5rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Accessibility and Touch Optimization */
@media (hover: none) and (pointer: coarse) {
    .navbar_link-block {
        min-height: 48px;
        padding: 0.875rem 1.5rem;
    }
    
    .menu-button {
        min-height: 44px;
        min-width: 44px;
    }
    
    .navbar_social-link {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Remove hover effects */
    .navbar_unified:hover {
        transform: none;
        box-shadow: none;
    }
    
    .navbar_link-block:hover {
        transform: none;
    }
    
    /* Add touch feedback */
    .navbar_link-block:active {
        transform: scale(0.98);
        background: rgba(255, 255, 255, 0.15);
    }
    
    .menu-button:active {
        transform: scale(0.9);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .navbar {
        border: 1px solid rgba(255, 255, 255, 0.4);
        background: rgba(0, 0, 0, 0.85);
    }
    
    .navbar_link-block {
        background: none;
        border: none;
    }
    
    .menu-button {
        background: rgba(255, 255, 255, 0.1);
        border: none;
    }
}

/* Desktop Navbar Transform Fix - Ensure All Elements Follow Navbar Movement */
@media (min-width: 768px) {
    /* Force disable desktop navbar hiding functionality */
    .navbar.navbar-hidden {
        transform: none !important;
        opacity: 1 !important;
        pointer-events: auto !important;
    }
    
    /* Desktop navbar transform base settings */
    .navbar {
        transform-style: preserve-3d !important;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    }
    
    /* Ensure all desktop navbar content follows transforms correctly */
    .navbar .navbar_container,
    .navbar .navbar_unified {
        transform-style: preserve-3d !important;
        position: relative !important;
    }
    
    /* Force ensure navigation links are not overridden by mobile styles */
    .navbar .navbar_links {
        position: static !important;
        transform-style: preserve-3d !important;
        top: auto !important;
        left: auto !important;
        width: auto !important;
        height: auto !important;
        background: none !important;
        backdrop-filter: none !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    /* Special fix for social media icon following issue */
    .navbar .navbar_social {
        position: relative !important;
        transform-style: preserve-3d !important;
        z-index: inherit !important;
        top: auto !important;
        left: auto !important;
        width: auto !important;
        height: auto !important;
        display: flex !important;
    }
    
    .navbar .navbar_social-link {
        position: relative !important;
        transform-style: preserve-3d !important;
        z-index: inherit !important;
        display: flex !important;
    }
    
    .navbar .navbar_social-icon {
        position: relative !important;
        transform-style: preserve-3d !important;
        z-index: inherit !important;
        display: block !important;
    }
    
    /* 确保所有导航链接也正确跟随 */
    .navbar .navigation-menu,
    .navbar .navbar_link-block {
        transform-style: preserve-3d !important;
        position: relative !important;
    }
    
    /* 确保品牌区域也正确跟随 */
    .navbar .navbar_brand,
    .navbar .navbar_logo,
    .navbar .navbar_logo-img,
    .navbar .navbar_brand-text {
        transform-style: preserve-3d !important;
        position: relative !important;
    }
}