/* ============================================================
   新游纪城市定向挑战赛 - 共享样式表
   版本: 2.0 (优化版)
   设计系统: 暗色主题 · 城市探险风格
   ============================================================ */

/* --- CSS Variables (Design Tokens) --- */
:root {
    --primary: #E63946;
    --primary-dark: #C1121F;
    --secondary: #1D3557;
    --accent: #F4A261;
    --gold: #FFD700;
    --dark: #0D1B2A;
    --darker: #0A1628;
    --light: #F1FAEE;
    --gray: #457B9D;
    --purple: #9D4EDD;
    --cyan: #00D4FF;

    /* Functional tokens */
    --text-primary: var(--light);
    --text-secondary: rgba(241, 250, 238, 0.65);
    --text-muted: rgba(241, 250, 238, 0.4);
    --border-light: rgba(69, 123, 157, 0.2);
    --border-glow: rgba(230, 57, 70, 0.25);
    --card-bg: rgba(29, 53, 87, 0.3);
    --card-bg-hover: rgba(29, 53, 87, 0.5);
    --glass-bg: rgba(13, 27, 42, 0.85);
    --glass-border: rgba(69, 123, 157, 0.15);
    --nav-height: 70px;
    --max-width: 1200px;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 50px;
    --shadow-sm: 0 4px 15px rgba(230, 57, 70, 0.4);
    --shadow-md: 0 10px 40px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(230, 57, 70, 0.15);
    --transition-fast: 0.2s;
    --transition-base: 0.3s;
    --transition-slow: 0.4s;
    --gradient-accent: linear-gradient(135deg, var(--primary), var(--accent));
    --gradient-cta: linear-gradient(135deg, var(--primary), var(--primary-dark));
    --gradient-cool: linear-gradient(135deg, var(--cyan), var(--purple));
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--darker);
}
::-webkit-scrollbar-thumb {
    background: rgba(230, 57, 70, 0.3);
    border-radius: 4px;
    transition: background var(--transition-base);
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(230, 57, 70, 0.5);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--dark);
    color: var(--text-primary);
    overflow-x: hidden;
    overflow-y: scroll;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

/* --- Skip to Content (Accessibility) --- */
.skip-to-content {
    position: absolute;
    top: -100px;
    left: 1rem;
    z-index: 9999;
    background: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    font-weight: 600;
    transition: top var(--transition-base);
}
.skip-to-content:focus {
    top: 0;
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to bottom, rgba(13, 27, 42, 0.95), transparent);
    transition: background var(--transition-base), backdrop-filter var(--transition-base);
}

.nav.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    box-shadow: 0 1px 0 var(--glass-border), var(--shadow-glow);
    border-bottom: 1px solid var(--glass-border);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: clamp(0.95rem, 1.8vw, 1.3rem);
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    flex-shrink: 0;
    white-space: nowrap;
}

.nav-logo .logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    gap: 0.25rem;
    align-items: center;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-base), background var(--transition-base);
    white-space: nowrap;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0.75rem;
    right: 0.75rem;
    height: 2px;
    background: var(--primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.nav-links a:hover {
    color: var(--primary);
    background: rgba(230, 57, 70, 0.08);
}

.nav-links a:hover::after {
    transform: scaleX(1);
}

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

.nav-links a.active::after {
    transform: scaleX(1);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    padding: 0.5rem 1.25rem !important;
    border-radius: var(--radius-full) !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow-sm);
    margin-left: 0.5rem;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.5);
}

.nav-cta::after {
    display: none !important;
}

/* Mobile Menu Toggle */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px 8px;
    background: transparent;
    border: none;
    z-index: 1001;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu span {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-base);
    transform-origin: center;
}

.mobile-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ============================================================
   COMMON COMPONENTS
   ============================================================ */

/* Section */
section {
    padding: 5rem 2rem;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem;
}

.section-tag {
    display: inline-block;
    background: rgba(230, 57, 70, 0.1);
    border: 1px solid rgba(230, 57, 70, 0.2);
    padding: 0.35rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    line-height: 1.2;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(230, 57, 70, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(241, 250, 238, 0.25);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(230, 57, 70, 0.08);
}

.btn-white {
    background: white;
    color: var(--primary);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Cards (shared patterns) */
.card-base {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: all var(--transition-slow);
}

.card-base:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

/* Gradient text */
.highlight-text,
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glass card effect */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

/* Gradient border card */
.gradient-border {
    position: relative;
    background: var(--card-bg);
    border-radius: var(--radius-md);
}
.gradient-border::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-slow);
    z-index: -1;
}
.gradient-border:hover::before {
    opacity: 0.3;
}

/* Text glow utility */
.text-glow {
    text-shadow: 0 0 30px rgba(230, 57, 70, 0.3), 0 0 60px rgba(230, 57, 70, 0.15);
}
.text-glow-accent {
    text-shadow: 0 0 30px rgba(244, 162, 97, 0.3), 0 0 60px rgba(244, 162, 97, 0.15);
}
.text-glow-cyan {
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.3), 0 0 60px rgba(0, 212, 255, 0.15);
}

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

@keyframes fadeIn {
    to { opacity: 0.5; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

@keyframes float {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-100vh) rotate(720deg); opacity: 0; }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

/* Scroll-triggered animation - JS-gated for reliability */
.fade-in {
    /* Default: fully visible. JS will add 'fade-init' to trigger animation */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}

.fade-in.fade-init {
    opacity: 0;
    transform: translateY(30px);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   FOOTER
   ============================================================ */
footer {
    background: var(--darker);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .nav-logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(69, 123, 157, 0.2);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
    color: white;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-base);
}

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

.footer-bottom {
    max-width: var(--max-width);
    margin: 2.5rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: background var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover {
    background: var(--primary);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    transition: background var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-nav:hover {
    background: var(--primary);
}

.lightbox-prev { left: -80px; }
.lightbox-next { right: -80px; }

/* ============================================================
   PAGE HEADER (Subpages)
   ============================================================ */
.page-header {
    padding: 8rem 2rem 3.5rem;
    text-align: center;
    background: linear-gradient(180deg, var(--dark) 0%, var(--darker) 100%);
    position: relative;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(230, 57, 70, 0.12) 0%, transparent 60%);
}

.page-header h1 {
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.breadcrumb {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    position: relative;
    z-index: 1;
}

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

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

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* Tablet Landscape / Small Desktop */
@media (max-width: 1100px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .lightbox-nav {
        display: none;
    }
}

/* Tablet Portrait */
@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(13, 27, 42, 0.98);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 1.5rem;
        gap: 0.5rem;
        z-index: 999;
        overflow-y: auto;
        border-top: 1px solid var(--border-light);
    }

    .nav-links.active a {
        padding: 0.85rem 1rem;
        background: rgba(29, 53, 87, 0.25);
        border-radius: var(--radius-sm);
        font-size: 1rem;
        width: 100%;
        text-align: center;
    }

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

    .nav-links.active a:hover {
        background: rgba(230, 57, 70, 0.15);
    }

    .nav-links.active .nav-cta {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
        text-align: center;
        margin-left: 0;
        margin-top: 0.5rem;
    }

    .mobile-menu {
        display: flex;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .page-header {
        padding: 7rem 1.5rem 3rem;
        min-height: 240px;
    }
}

/* Mobile */
/* ============================================================
   INTERACTIVE EFFECTS
   ============================================================ */

/* Scroll Progress Bar */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--cyan));
    transition: width 0.1s ease-out;
    pointer-events: none;
}

/* Back to Top Button */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 900;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: 0 4px 20px rgba(230, 57, 70, 0.4);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(230, 57, 70, 0.6);
}

#back-to-top:active {
    transform: translateY(0) scale(0.95);
}

/* Enhanced Scroll Reveal Animations */
.fade-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    will-change: opacity, transform;
}

/* Enhanced Scroll Reveal Animations - JS-gated */
.fade-left {
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    will-change: opacity, transform;
}
.fade-left.fade-init {
    opacity: 0;
    transform: translateX(-40px);
}

.fade-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-right {
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    will-change: opacity, transform;
}
.fade-right.fade-init {
    opacity: 0;
    transform: translateX(40px);
}

.fade-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.scale-in {
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    will-change: opacity, transform;
}
.scale-in.fade-init {
    opacity: 0;
    transform: scale(0.85);
}

.scale-in.visible {
    opacity: 1;
    transform: scale(1);
}

/* Counter number animation base */
.stat-number.counting {
    transition: none;
}

/* 3D Tilt Card Container */
.tilt-card {
    transition: transform 0.1s ease-out;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.tilt-card .tilt-content {
    transition: transform 0.2s ease-out;
    transform: translateZ(0);
}

.tilt-card:hover .tilt-content {
    transform: translateZ(20px);
}

@media (max-width: 600px) {
    :root {
        --nav-height: 60px;
    }

    .nav {
        padding: 0 1rem;
    }

    .nav-logo {
        font-size: clamp(0.8rem, 3.5vw, 1rem);
    }

    .nav-logo .logo-icon {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
    }

    section {
        padding: 3.5rem 1rem;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .page-header {
        padding: 6rem 1rem 2.5rem;
        min-height: 200px;
    }
}

/* ============================================================
   MORE INTERACTIVE EFFECTS
   ============================================================ */

/* --- Ripple Effect on Click --- */
.ripple-btn {
    position: relative;
    overflow: hidden;
}
.ripple-btn .ripple-effect {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    transform: scale(0);
    animation: ripple-anim 0.6s ease-out forwards;
    pointer-events: none;
}
@keyframes ripple-anim {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* --- Staggered Card Reveal --- */
.stagger-grid .fade-in {
    transition-delay: 0s !important;
}
.stagger-grid .fade-in:nth-child(1) { transition-delay: 0s !important; }
.stagger-grid .fade-in:nth-child(2) { transition-delay: 0.08s !important; }
.stagger-grid .fade-in:nth-child(3) { transition-delay: 0.16s !important; }
.stagger-grid .fade-in:nth-child(4) { transition-delay: 0.24s !important; }
.stagger-grid .fade-in:nth-child(5) { transition-delay: 0.32s !important; }
.stagger-grid .fade-in:nth-child(6) { transition-delay: 0.40s !important; }
.stagger-grid .fade-in:nth-child(7) { transition-delay: 0.48s !important; }
.stagger-grid .fade-in:nth-child(8) { transition-delay: 0.56s !important; }
.stagger-grid .fade-in:nth-child(9) { transition-delay: 0.64s !important; }

/* --- Wave Dividers Between Sections --- */
.section-wave {
    display: block;
    width: 100%;
    height: 60px;
    fill: var(--darker);
    position: relative;
    z-index: 2;
    pointer-events: none;
}
.section-wave.light {
    fill: var(--dark);
}

/* --- Scroll Active Nav Highlight --- */
.nav-links a.active-section {
    color: var(--primary);
}
.nav-links a.active-section::after {
    transform: scaleX(1);
}

/* --- Auto Gallery Indicator --- */
.gallery-auto-indicator {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.25rem;
}
.gallery-auto-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    cursor: pointer;
    transition: all var(--transition-base);
}
.gallery-auto-dot.active {
    background: var(--primary);
    box-shadow: 0 0 8px rgba(230,57,70,0.5);
    width: 28px;
    border-radius: 5px;
}

/* ============================================================
   SUB-PAGE ENHANCEMENTS (统一子页面增强样式)
   ============================================================ */

/* Sub-page content container */
.sub-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 2rem;
}
@media (max-width: 600px) {
    .sub-content { padding: 2rem 1rem; }
}

/* Enhanced section headings with gradient underline */
.sub-heading {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--accent);
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    position: relative;
}
.sub-heading::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 1rem;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), transparent);
}

/* Enhanced card for sub-pages */
.sub-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: 2rem;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}
.sub-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.sub-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform var(--transition-slow);
}
.sub-card:hover::before {
    transform: scaleX(1);
}

/* Enhanced featured card with glow border */
.sub-card.featured {
    border-color: var(--primary);
    box-shadow: 0 0 40px rgba(230,57,70,0.08);
}

/* Sub-page grid layouts */
.sub-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}
.sub-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.sub-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

@media (max-width: 900px) {
    .sub-grid-2, .sub-grid-3, .sub-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .sub-grid-2, .sub-grid-3, .sub-grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Enhanced list with checkmarks */
.sub-list {
    list-style: none;
    margin: 1.5rem 0;
}
.sub-list li {
    padding: 0.6rem 0 0.6rem 2rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}
.sub-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Enhanced CTA block for sub-pages */
.sub-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 3.5rem 2rem;
    text-align: center;
    border-radius: var(--radius-lg);
    margin-top: 3rem;
    position: relative;
    overflow: hidden;
}
.sub-cta::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.sub-cta h2 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: white;
    border: none;
    padding: 0;
    position: relative;
}
.sub-cta p {
    color: rgba(255,255,255,0.9);
    margin-bottom: 2rem;
    position: relative;
}
.sub-cta .btn-cta {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}
.sub-cta .btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* Timeline component */
.sub-timeline {
    position: relative;
    padding-left: 3rem;
    margin: 2rem 0;
}
.sub-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
}
.sub-timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}
.sub-timeline-item::before {
    content: '';
    position: absolute;
    left: -3rem;
    top: 0.5rem;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    transform: translateX(-6px);
    box-shadow: 0 0 12px rgba(230,57,70,0.4);
}
.sub-timeline-year {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 0.5rem;
}
.sub-timeline-content {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}
.sub-timeline-content:hover {
    border-color: var(--accent);
    transform: translateX(5px);
}
.sub-timeline-content strong {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}
.sub-timeline-content p {
    margin-bottom: 0;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Enhanced team member card */
.sub-team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}
.sub-team-member {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}
.sub-team-member:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.sub-team-member::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform var(--transition-slow);
}
.sub-team-member:hover::after {
    transform: scaleX(1);
}
.sub-team-avatar {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(230,57,70,0.2);
}
.sub-team-member h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}
.sub-team-member .role {
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 0;
}

/* Process step component */
.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 2rem 0;
    position: relative;
}
.process-steps::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
    opacity: 0.2;
}
.process-step {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
}
.process-step:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
}
.process-step .step-num {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
    font-weight: 700;
    font-size: 1rem;
    position: relative;
    z-index: 2;
    box-shadow: 0 4px 15px rgba(230,57,70,0.3);
}
.process-step h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}
.process-step p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

@media (max-width: 900px) {
    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    .process-steps::before { display: none; }
}
@media (max-width: 600px) {
    .process-steps { grid-template-columns: 1fr; }
}

/* Contact card */
.sub-contact {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: 2.5rem;
    margin-top: 2rem;
}
.sub-contact h2 {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
}
.sub-contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}
.sub-contact-item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: rgba(230,57,70,0.05);
    border-radius: var(--radius-md);
    border: 1px solid rgba(230,57,70,0.1);
    transition: all var(--transition-base);
}
.sub-contact-item:hover {
    background: rgba(230,57,70,0.08);
    border-color: var(--primary);
}
.sub-contact-item .label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.sub-contact-item .value {
    font-size: 1rem;
    font-weight: 500;
}
.sub-contact-item .value a {
    color: var(--primary);
}

/* FAQ styles */
.sub-faq-group {
    margin-bottom: 2.5rem;
}
.sub-faq-group h2 {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
}
.sub-faq-item {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: all var(--transition-base);
}
.sub-faq-item:hover {
    border-color: rgba(230,57,70,0.3);
}
.sub-faq-q {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    transition: background var(--transition-base);
    user-select: none;
}
.sub-faq-q:hover {
    background: rgba(230,57,70,0.05);
}
.sub-faq-q .arrow {
    transition: transform var(--transition-base);
    color: var(--primary);
    font-size: 0.8rem;
    flex-shrink: 0;
    margin-left: 1rem;
}
.sub-faq-q.active .arrow {
    transform: rotate(180deg);
}
.sub-faq-a {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}
.sub-faq-a.open {
    max-height: 350px;
    padding: 0 1.5rem 1.25rem;
}

/* Rules block */
.sub-rules {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: 2rem;
    margin-top: 2rem;
    transition: all var(--transition-base);
}
.sub-rules:hover {
    border-color: var(--accent);
}
.sub-rules h3 {
    color: var(--accent);
    margin-bottom: 1rem;
}
.sub-rules ol {
    padding-left: 1.25rem;
}
.sub-rules li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Event card for review page */
.sub-event-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all var(--transition-slow);
}
.sub-event-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.sub-event-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    background: rgba(230,57,70,0.03);
}
.sub-event-header h3 {
    font-size: 1.25rem;
    color: var(--accent);
}
.sub-event-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.sub-event-body {
    padding: 2rem;
}
.sub-event-body p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}
.sub-event-stats {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}
.sub-event-stat {
    text-align: center;
    background: rgba(230,57,70,0.05);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(230,57,70,0.08);
    min-width: 100px;
    transition: all var(--transition-base);
}
.sub-event-stat:hover {
    background: rgba(230,57,70,0.08);
    border-color: var(--primary);
}
.sub-event-stat .num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}
.sub-event-stat .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* Media card for media page */
.sub-media-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}
@media (max-width: 600px) {
    .sub-media-grid { grid-template-columns: 1fr; }
}
.sub-media-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    padding: 2rem;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}
.sub-media-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}
.sub-media-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity var(--transition-base);
}
.sub-media-card:hover::before {
    opacity: 1;
}
.sub-media-source {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.sub-media-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}
.sub-media-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}
.sub-media-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Section divider glow */
.section-divider-glow {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), var(--accent), var(--primary), transparent);
    opacity: 0.2;
    margin: 0 auto;
    max-width: 80%;
}

/* Enhanced breadcrumb */
.sub-breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: rgba(255,255,255,0.05);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    position: relative;
    z-index: 1;
}
.sub-breadcrumb a {
    color: var(--text-muted);
    transition: color var(--transition-base);
}
.sub-breadcrumb a:hover {
    color: var(--primary);
}

/* Tag cloud */
.sub-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    margin-top: 1rem;
}
.sub-tag {
    background: rgba(230,57,70,0.08);
    border: 1px solid rgba(230,57,70,0.15);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--primary);
    transition: all var(--transition-base);
}
.sub-tag:hover {
    background: rgba(230,57,70,0.15);
    transform: translateY(-1px);
}

/* Price/accuracy display */
.sub-big-number {
    font-size: 3rem;
    font-weight: 900;
    margin: 1rem 0;
}
.sub-big-number.glow {
    color: var(--cyan);
    text-shadow: 0 0 40px rgba(0,212,255,0.3);
}
.sub-big-number.muted {
    color: var(--text-muted);
}

/* Section spacing for sub-pages */
.content-section {
    margin-bottom: 4rem;
}
@media (max-width: 600px) {
    .content-section {
        margin-bottom: 2.5rem;
    }
}