/* Theme18 - Cyberpunk Style */
/* 赛博朋克风格：霓虹色彩、故障效果、未来科技感 */

/* ==================== CSS Variables ==================== */
:root {
    /* Primary Colors - Neon Cyan */
    --t18-primary: #00F5FF;
    --t18-primary-light: #67FFFF;
    --t18-primary-dark: #00C4CC;
    --t18-primary-glow: rgba(0, 245, 255, 0.5);

    /* Secondary Colors - Hot Pink */
    --t18-secondary: #FF00FF;
    --t18-secondary-light: #FF66FF;
    --t18-secondary-dark: #CC00CC;
    --t18-secondary-glow: rgba(255, 0, 255, 0.5);

    /* Accent Colors - Electric Yellow */
    --t18-accent: #FFFF00;
    --t18-accent-light: #FFFF66;
    --t18-accent-glow: rgba(255, 255, 0, 0.5);

    /* Tertiary - Neon Green */
    --t18-neon-green: #00FF41;
    --t18-neon-orange: #FF6B00;
    --t18-neon-purple: #9D00FF;

    /* Background Colors - Dark Cyber */
    --t18-bg: #0A0A0F;
    --t18-bg-alt: #12121A;
    --t18-bg-card: #1A1A25;
    --t18-bg-dark: #050508;
    --t18-bg-gradient: linear-gradient(135deg, #0A0A0F 0%, #1A0A20 50%, #0A1A1A 100%);

    /* Text Colors */
    --t18-text: #E0E0E8;
    --t18-text-secondary: #A0A0B0;
    --t18-text-light: #707080;
    --t18-text-glow: #FFFFFF;

    /* Border Colors */
    --t18-border: #2A2A3A;
    --t18-border-glow: var(--t18-primary);

    /* Effects */
    --t18-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
    --t18-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
    --t18-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.7);
    --t18-glow-sm: 0 0 10px var(--t18-primary-glow);
    --t18-glow: 0 0 20px var(--t18-primary-glow), 0 0 40px var(--t18-primary-glow);
    --t18-glow-lg: 0 0 30px var(--t18-primary-glow), 0 0 60px var(--t18-primary-glow), 0 0 90px var(--t18-primary-glow);
    --t18-glow-pink: 0 0 20px var(--t18-secondary-glow), 0 0 40px var(--t18-secondary-glow);

    /* Layout */
    --t18-radius: 4px;
    --t18-radius-lg: 8px;

    /* Typography */
    --t18-font: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --t18-font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--t18-font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--t18-text);
    background: var(--t18-bg);
    background-image: var(--t18-bg-gradient);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Scanline overlay effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.1) 2px,
        rgba(0, 0, 0, 0.1) 4px
    );
    pointer-events: none;
    z-index: 9999;
    opacity: 0.3;
}

a {
    color: var(--t18-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

a:hover {
    color: var(--t18-primary-light);
    text-shadow: var(--t18-glow-sm);
}

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

/* ==================== Typography ==================== */
h1, h2, h3, h4, h5, h6 {
    color: var(--t18-text-glow);
    font-weight: 700;
    line-height: 1.3;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h1 {
    font-size: 2.2rem;
    text-shadow: var(--t18-glow);
    color: var(--t18-primary);
}

h2 {
    font-size: 1.8rem;
    color: var(--t18-secondary);
    text-shadow: var(--t18-glow-pink);
}

h3 {
    font-size: 1.4rem;
    color: var(--t18-primary);
}

h4 {
    font-size: 1.2rem;
}

p {
    margin-bottom: 16px;
    color: var(--t18-text);
}

/* ==================== Layout ==================== */
.t18-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.t18-inner {
    padding: 40px 0;
}

/* ==================== Header & Navigation ==================== */
.t18-header {
    background: var(--t18-bg-dark);
    border-bottom: 2px solid var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.t18-header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
    height: 70px;
}

.t18-logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--t18-primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: var(--t18-glow);
    font-family: var(--t18-font-mono);
}

.t18-logo span {
    color: var(--t18-secondary);
}

/* Desktop Navigation */
.t18-nav {
    display: flex;
    gap: 8px;
}
.t18-nav ul {
    display: contents;
}
.t18-nav li {
    list-style: none;
}

.t18-nav a {
    padding: 10px 18px;
    color: var(--t18-text);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.t18-nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--t18-primary-glow), transparent);
    transition: left 0.5s ease;
}

.t18-nav a:hover::before {
    left: 100%;
}

.t18-nav a:hover {
    color: var(--t18-primary);
    border-color: var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
}

.t18-nav a.active {
    color: var(--t18-bg);
    background: var(--t18-primary);
    border-color: var(--t18-primary);
    box-shadow: var(--t18-glow);
}

/* Mobile Menu Toggle */
.t18-menu-toggle {
    display: none;
}

.t18-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    border: 1px solid var(--t18-primary);
    background: transparent;
    padding: 8px;
}

.t18-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--t18-primary);
    margin: 3px 0;
    transition: all 0.3s ease;
    box-shadow: 0 0 5px var(--t18-primary-glow);
}

@media (max-width: 768px) {
    .t18-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--t18-bg-dark);
        border-bottom: 2px solid var(--t18-primary);
        box-shadow: var(--t18-shadow-lg);
        padding: 20px;
    }

    .t18-nav ul {
        display: flex;
        flex-direction: column;
        list-style: none;
        margin: 0;
        padding: 0;
    }

    .t18-nav a {
        display: block;
        padding: 14px 20px;
        color: var(--t18-text);
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 1px;
        border-left: 3px solid transparent;
        border-radius: 0;
    }

    .t18-nav a:hover,
    .t18-nav a.active {
        color: var(--t18-primary);
        border-left-color: var(--t18-primary);
        background: rgba(0, 245, 255, 0.1);
        text-shadow: var(--t18-glow-sm);
    }

    .t18-menu-btn {
        display: flex;
    }

    .t18-menu-toggle:checked ~ .t18-nav {
        display: block;
        animation: t18-slideDown 0.3s ease;
    }

    .t18-menu-toggle:checked ~ .t18-menu-btn span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .t18-menu-toggle:checked ~ .t18-menu-btn span:nth-child(2) {
        opacity: 0;
    }

    .t18-menu-toggle:checked ~ .t18-menu-btn span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}

@keyframes t18-slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== Banner ==================== */
.t18-hero {
    background: var(--t18-bg-alt);
    border: 1px solid var(--t18-border);
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.t18-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--t18-primary), var(--t18-secondary), var(--t18-accent));
    animation: t18-gradient 3s linear infinite;
    background-size: 200% 100%;
}

@keyframes t18-gradient {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

.t18-hero-single {
    height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.t18-hero-single img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7) contrast(1.2) saturate(1.3);
}

.t18-hero-single::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 50%, var(--t18-bg) 100%);
}

.t18-hero-grid {
    display: grid;
    gap: 4px;
    padding: 4px;
}

.t18-hero-grid.row-2 { grid-template-columns: repeat(2, 1fr); }
.t18-hero-grid.row-3 { grid-template-columns: repeat(3, 1fr); }
.t18-hero-grid.row-4 { grid-template-columns: repeat(4, 1fr); }
.t18-hero-grid.row-5 { grid-template-columns: repeat(5, 1fr); }

.t18-hero-item {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--t18-border);
}

.t18-hero-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: all 0.4s ease;
    filter: grayscale(30%);
}

.t18-hero-item:hover img {
    transform: scale(1.1);
    filter: grayscale(0%) brightness(1.1);
}

.t18-hero-item::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    z-index: 2;
    transition: all 0.3s ease;
}

.t18-hero-item:hover::before {
    border-color: var(--t18-primary);
    box-shadow: inset var(--t18-glow-sm);
}

.t18-hero-item span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 12px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    color: var(--t18-text);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    z-index: 1;
}

@media (max-width: 768px) {
    .t18-hero-grid.row-4,
    .t18-hero-grid.row-5 {
        grid-template-columns: repeat(2, 1fr);
    }
    .t18-hero-item img {
        height: 140px;
    }
}

/* ==================== Section Titles ==================== */
.t18-section-title {
    font-size: 1.6rem;
    color: var(--t18-primary);
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--t18-border);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: var(--t18-glow-sm);
}

.t18-section-title::before {
    content: '//';
    color: var(--t18-secondary);
    margin-right: 12px;
    font-family: var(--t18-font-mono);
}

.t18-section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, var(--t18-primary), var(--t18-secondary));
    box-shadow: var(--t18-glow-sm);
}

/* ==================== Cards ==================== */
.t18-card {
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    padding: 28px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.t18-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--t18-primary), var(--t18-secondary));
}

.t18-card:hover {
    border-color: var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
}

.t18-card h3 {
    margin-bottom: 16px;
    font-size: 1.2rem;
}

/* ==================== Product Grid ==================== */
.t18-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.t18-product-card {
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.t18-product-card::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg, var(--t18-primary), var(--t18-secondary), var(--t18-accent), var(--t18-primary));
    background-size: 400% 400%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.t18-product-card:hover::before {
    opacity: 1;
    animation: t18-borderGlow 3s ease infinite;
}

@keyframes t18-borderGlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.t18-product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--t18-shadow-lg);
}

.t18-product-card a {
    display: block;
    text-decoration: none;
}

.t18-product-img {
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--t18-border);
}

.t18-product-img img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: all 0.4s ease;
    filter: brightness(0.9);
}

.t18-product-card:hover .t18-product-img img {
    transform: scale(1.1);
    filter: brightness(1.1) saturate(1.2);
}

.t18-product-img::after {
    content: 'VIEW';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: var(--t18-primary);
    color: var(--t18-bg);
    padding: 10px 24px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    opacity: 0;
    transition: all 0.3s ease;
}

.t18-product-card:hover .t18-product-img::after {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.t18-product-info {
    padding: 18px;
    background: var(--t18-bg-card);
}

.t18-product-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--t18-text);
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.t18-product-card:hover .t18-product-name {
    color: var(--t18-primary);
}

.t18-product-time {
    font-size: 0.8rem;
    color: var(--t18-text-light);
    font-family: var(--t18-font-mono);
}

@media (max-width: 1024px) {
    .t18-product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .t18-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .t18-product-img img {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .t18-product-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== Content Sections ==================== */
.t18-content-section {
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    padding: 32px;
    margin-bottom: 32px;
    position: relative;
}

.t18-content-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--t18-primary), transparent);
}

/* ==================== Contact Info ==================== */
.t18-contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.t18-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--t18-bg-alt);
    border: 1px solid var(--t18-border);
    transition: all 0.3s ease;
}

.t18-contact-item:hover {
    border-color: var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
}

.t18-contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--t18-primary), var(--t18-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.t18-contact-text h4 {
    color: var(--t18-primary);
    font-size: 0.85rem;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.t18-contact-text p {
    color: var(--t18-text);
    margin-bottom: 0;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .t18-contact-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== Company Info Table ==================== */
.t18-info-table {
    width: 100%;
    border-collapse: collapse;
}

.t18-info-table tr {
    border-bottom: 1px solid var(--t18-border);
}

.t18-info-table tr:hover {
    background: rgba(0, 245, 255, 0.05);
}

.t18-info-table th {
    width: 140px;
    padding: 16px 20px;
    text-align: left;
    color: var(--t18-primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: rgba(0, 245, 255, 0.05);
    font-family: var(--t18-font-mono);
}

.t18-info-table td {
    padding: 16px 20px;
    color: var(--t18-text);
}

/* Two Column Layout */
.t18-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.t18-two-col .t18-col h3 {
    margin-bottom: 20px;
    color: var(--t18-secondary);
}

@media (max-width: 768px) {
    .t18-two-col {
        grid-template-columns: 1fr;
    }
    .t18-info-table th {
        width: 120px;
        padding: 12px 16px;
    }
}

/* ==================== Forms ==================== */
.t18-form-card {
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    padding: 32px;
    position: relative;
}

.t18-form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--t18-primary), var(--t18-secondary), var(--t18-accent));
}

.t18-form-group {
    margin-bottom: 24px;
}

.t18-form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--t18-primary);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.t18-form-group input,
.t18-form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--t18-bg);
    border: 1px solid var(--t18-border);
    color: var(--t18-text);
    font-size: 1rem;
    font-family: var(--t18-font);
    transition: all 0.3s ease;
}

.t18-form-group input:focus,
.t18-form-group textarea:focus {
    outline: none;
    border-color: var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
}

.t18-form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.t18-form-group input::placeholder,
.t18-form-group textarea::placeholder {
    color: var(--t18-text-light);
}

/* ==================== Buttons ==================== */
.t18-btn {
    display: inline-block;
    padding: 14px 32px;
    background: transparent;
    border: 2px solid var(--t18-primary);
    color: var(--t18-primary);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.t18-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--t18-primary);
    transition: left 0.3s ease;
    z-index: -1;
}

.t18-btn:hover {
    color: var(--t18-bg);
    box-shadow: var(--t18-glow);
}

.t18-btn:hover::before {
    left: 0;
}

.t18-btn-secondary {
    border-color: var(--t18-secondary);
    color: var(--t18-secondary);
}

.t18-btn-secondary::before {
    background: var(--t18-secondary);
}

.t18-btn-secondary:hover {
    box-shadow: var(--t18-glow-pink);
}

/* ==================== Pagination ==================== */
.t18-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.t18-pagination a,
.t18-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    color: var(--t18-text);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--t18-font-mono);
    transition: all 0.3s ease;
}

.t18-pagination a:hover {
    border-color: var(--t18-primary);
    color: var(--t18-primary);
    box-shadow: var(--t18-glow-sm);
}

.t18-pagination .active {
    background: var(--t18-primary);
    border-color: var(--t18-primary);
    color: var(--t18-bg);
    box-shadow: var(--t18-glow);
}

.t18-pagination .disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ==================== Breadcrumb ==================== */
.t18-breadcrumb {
    padding: 16px 0;
    margin-bottom: 24px;
    font-size: 0.9rem;
    font-family: var(--t18-font-mono);
}

.t18-breadcrumb a {
    color: var(--t18-text-secondary);
}

.t18-breadcrumb a:hover {
    color: var(--t18-primary);
}

.t18-breadcrumb span {
    color: var(--t18-text-light);
    margin: 0 10px;
}

.t18-breadcrumb strong {
    color: var(--t18-primary);
    font-weight: 600;
}

/* ==================== Links Section ==================== */
.t18-links-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--t18-border);
}

.t18-links-title {
    font-size: 1rem;
    color: var(--t18-primary);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.t18-links-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.t18-links-list a {
    padding: 8px 16px;
    background: var(--t18-bg-card);
    border: 1px solid var(--t18-border);
    color: var(--t18-text-secondary);
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.t18-links-list a:hover {
    border-color: var(--t18-primary);
    color: var(--t18-primary);
}

/* ==================== Footer ==================== */
.t18-footer {
    background: var(--t18-bg-dark);
    border-top: 2px solid var(--t18-primary);
    margin-top: 60px;
    position: relative;
}

.t18-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--t18-primary), var(--t18-secondary), var(--t18-accent));
    animation: t18-gradient 3s linear infinite;
    background-size: 200% 100%;
}

.t18-footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.t18-footer-col h4 {
    color: var(--t18-primary);
    font-size: 1rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: var(--t18-glow-sm);
}

.t18-footer-col p {
    color: var(--t18-text-secondary);
    font-size: 0.9rem;
    margin-bottom: 10px;
    line-height: 1.8;
}

.t18-footer-col a {
    color: var(--t18-text-secondary);
}

.t18-footer-col a:hover {
    color: var(--t18-primary);
}

.t18-footer-bottom {
    border-top: 1px solid var(--t18-border);
    padding: 20px;
    text-align: center;
}

.t18-footer-bottom p {
    color: var(--t18-text-light);
    font-size: 0.85rem;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .t18-footer-inner {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
}

/* ==================== Error Page ==================== */
.t18-error-page {
    text-align: center;
    padding: 80px 20px;
}

.t18-error-code {
    font-size: 8rem;
    font-weight: 900;
    color: var(--t18-primary);
    text-shadow: var(--t18-glow-lg);
    line-height: 1;
    margin-bottom: 20px;
    font-family: var(--t18-font-mono);
    animation: t18-glitch 2s infinite;
}

@keyframes t18-glitch {
    0%, 90%, 100% {
        text-shadow: var(--t18-glow-lg);
    }
    92% {
        text-shadow: -5px 0 var(--t18-secondary), 5px 0 var(--t18-accent);
    }
    94% {
        text-shadow: 5px 0 var(--t18-secondary), -5px 0 var(--t18-accent);
    }
    96% {
        text-shadow: var(--t18-glow-lg);
    }
    98% {
        text-shadow: -3px 0 var(--t18-secondary), 3px 0 var(--t18-accent);
    }
}

.t18-error-title {
    font-size: 2rem;
    color: var(--t18-secondary);
    margin-bottom: 16px;
    text-shadow: var(--t18-glow-pink);
}

.t18-error-text {
    color: var(--t18-text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

/* ==================== Page Title ==================== */
.t18-page-title {
    font-size: 2rem;
    color: var(--t18-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--t18-border);
    position: relative;
    text-shadow: var(--t18-glow);
}

.t18-page-title::before {
    content: '>';
    color: var(--t18-secondary);
    margin-right: 16px;
    animation: t18-blink 1s infinite;
}

@keyframes t18-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.t18-page-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 150px;
    height: 2px;
    background: linear-gradient(90deg, var(--t18-primary), var(--t18-secondary));
    box-shadow: var(--t18-glow-sm);
}

/* ==================== Copy Notice ==================== */
.t18-copy-notice {
    margin-top: 32px;
    padding: 16px 20px;
    background: var(--t18-bg-alt);
    border-left: 3px solid var(--t18-secondary);
    font-size: 0.9rem;
    color: var(--t18-text-secondary);
}

.t18-copy-notice a {
    color: var(--t18-secondary);
}

/* ==================== Glitch Text Effect ==================== */
.t18-glitch {
    position: relative;
}

.t18-glitch::before,
.t18-glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.t18-glitch::before {
    color: var(--t18-secondary);
    animation: t18-glitchBefore 3s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 35%, 0 35%);
}

.t18-glitch::after {
    color: var(--t18-accent);
    animation: t18-glitchAfter 3s infinite;
    clip-path: polygon(0 65%, 100% 65%, 100% 100%, 0 100%);
}

@keyframes t18-glitchBefore {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-3px); }
    40% { transform: translateX(3px); }
    60% { transform: translateX(-2px); }
    80% { transform: translateX(2px); }
}

@keyframes t18-glitchAfter {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(3px); }
    40% { transform: translateX(-3px); }
    60% { transform: translateX(2px); }
    80% { transform: translateX(-2px); }
}

/* ==================== Responsive ==================== */
@media (max-width: 480px) {
    body {
        font-size: 15px;
    }

    .t18-container {
        padding: 0 15px;
    }

    h1, .t18-page-title {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    .t18-section-title {
        font-size: 1.3rem;
    }

    .t18-card {
        padding: 20px;
    }

    .t18-form-card {
        padding: 24px;
    }

    .t18-error-code {
        font-size: 5rem;
    }
}

/* ==================== Utility Classes ==================== */
.t18-text-center { text-align: center; }
.t18-text-glow { text-shadow: var(--t18-glow); }
.t18-text-pink { color: var(--t18-secondary); }
.t18-text-cyan { color: var(--t18-primary); }
.t18-text-yellow { color: var(--t18-accent); }
.t18-mb-0 { margin-bottom: 0; }
.t18-mt-4 { margin-top: 32px; }