/* ========================================
   三角洲陪玩网 - 沉浸式暗黑游戏风格
   ======================================== */

/* CSS 变量定义 */
:root {
    /* 深色背景系 */
    --color-bg-deep: #050508;
    --color-bg-primary: #0a0a0e;
    --color-bg-secondary: #0e0e14;
    --color-bg-tertiary: #121218;
    --color-bg-card: rgba(18, 18, 24, 0.7);
    --color-bg-card-solid: #14141c;
    
    /* 强调色 - 军事/战术风格 */
    --color-accent: #d4a520;
    --color-accent-dark: #a88318;
    --color-accent-light: #e8c04a;
    --color-accent-glow: rgba(212, 165, 32, 0.3);
    --color-red: #c23a3a;
    --color-red-glow: rgba(194, 58, 58, 0.3);
    --color-green: #2a8a2a;
    --color-green-light: #4aaa4a;
    
    /* 文字颜色 */
    --color-text-primary: #d8d8d8;
    --color-text-secondary: #888898;
    --color-text-muted: #555565;
    --color-text-accent: var(--color-accent);
    
    /* 边框 */
    --color-border: rgba(80, 80, 100, 0.3);
    --color-border-light: rgba(100, 100, 120, 0.4);
    --color-border-accent: rgba(212, 165, 32, 0.5);
    
    /* 字体 */
    --font-primary: "Rajdhani", "Microsoft YaHei", "PingFang SC", sans-serif;
    --font-display: "Orbitron", "Microsoft YaHei", sans-serif;
    --font-mono: "Consolas", "Monaco", monospace;
    --font-size-base: 16px;
    --line-height: 1.6;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* 容器 */
    --container-width: 1400px;
}

/* ========================================
   基础重置
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-primary);
    line-height: var(--line-height);
    color: var(--color-text-primary);
    background-color: var(--color-bg-deep);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection {
    background: var(--color-accent);
    color: var(--color-bg-deep);
}

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border-light);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* ========================================
   通用样式
   ======================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

a:hover {
    color: var(--color-accent-light);
    text-shadow: 0 0 10px var(--color-accent-glow);
}

/* 卡片边框效果 */
.card-border {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid var(--color-border);
    pointer-events: none;
    transition: all 0.3s ease;
}

.card-border::before,
.card-border::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-color: var(--color-accent);
    border-style: solid;
    opacity: 0;
    transition: all 0.3s ease;
}

.card-border::before {
    top: -1px;
    left: -1px;
    border-width: 2px 0 0 2px;
}

.card-border::after {
    bottom: -1px;
    right: -1px;
    border-width: 0 2px 2px 0;
}

*:hover > .card-border {
    border-color: var(--color-border-light);
}

*:hover > .card-border::before,
*:hover > .card-border::after {
    opacity: 1;
}

/* ========================================
   按钮样式
   ======================================== */
.btn-action {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-corner {
    position: absolute;
    width: 8px;
    height: 8px;
    border-color: var(--color-border-light);
    border-style: solid;
    transition: all 0.3s ease;
}

.btn-corner.tl { top: 0; left: 0; border-width: 1px 0 0 1px; }
.btn-corner.tr { top: 0; right: 0; border-width: 1px 1px 0 0; }
.btn-corner.bl { bottom: 0; left: 0; border-width: 0 0 1px 1px; }
.btn-corner.br { bottom: 0; right: 0; border-width: 0 1px 1px 0; }

.btn-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

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

.btn-action:hover .btn-corner {
    border-color: var(--color-accent);
    width: 12px;
    height: 12px;
}

.btn-primary {
    background: linear-gradient(135deg, rgba(212, 165, 32, 0.15) 0%, rgba(212, 165, 32, 0.05) 100%);
    color: var(--color-accent);
}

.btn-primary:hover {
    background: linear-gradient(135deg, rgba(212, 165, 32, 0.25) 0%, rgba(212, 165, 32, 0.1) 100%);
    box-shadow: 0 0 30px var(--color-accent-glow);
    color: var(--color-accent-light);
}

.btn-secondary {
    color: var(--color-text-primary);
}

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

.btn-text {
    position: relative;
    z-index: 1;
}

/* ========================================
   导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 5, 8, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-primary);
}

.logo:hover {
    color: var(--color-text-primary);
}

.logo-emblem {
    font-size: 1.5rem;
    color: var(--color-accent);
    letter-spacing: -5px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-title {
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--color-accent);
}

.logo-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.25rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 0.875rem;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

.nav-link:hover::before {
    width: 80%;
}

.btn-deploy {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    background: rgba(212, 165, 32, 0.1);
    border: 1px solid var(--color-border-accent);
    transition: all 0.3s ease;
}

.btn-deploy:hover {
    background: rgba(212, 165, 32, 0.2);
    box-shadow: 0 0 20px var(--color-accent-glow);
    color: var(--color-accent-light);
}

.btn-icon {
    font-size: 0.7rem;
}

/* ========================================
   Hero 作战中心
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 50% 30%, rgba(212, 165, 32, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 20% 80%, rgba(194, 58, 58, 0.03) 0%, transparent 40%),
        radial-gradient(ellipse at 80% 80%, rgba(42, 138, 42, 0.03) 0%, transparent 40%);
    pointer-events: none;
}

.hero-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.01) 2px, rgba(255,255,255,0.01) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.005) 2px, rgba(255,255,255,0.005) 4px);
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><circle cx="20" cy="30" r="1" fill="rgba(212,165,32,0.3)"/><circle cx="180" cy="50" r="0.5" fill="rgba(212,165,32,0.2)"/><circle cx="100" cy="150" r="0.8" fill="rgba(212,165,32,0.25)"/><circle cx="50" cy="180" r="0.5" fill="rgba(212,165,32,0.15)"/><circle cx="150" cy="100" r="0.6" fill="rgba(212,165,32,0.2)"/></svg>');
    background-size: 200px 200px;
    opacity: 0.5;
    animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0); }
    100% { transform: translateY(-200px); }
}

.hero-content {
    position: relative;
    text-align: center;
    z-index: 1;
    max-width: 1000px;
    padding: 0 var(--spacing-lg);
}

.hero-status {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1.5rem;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--color-green-light);
    background: rgba(42, 138, 42, 0.1);
    border: 1px solid rgba(42, 138, 42, 0.3);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-green-light);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 5px var(--color-green-light); }
    50% { opacity: 0.5; box-shadow: 0 0 15px var(--color-green-light); }
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.title-sub {
    display: block;
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 8px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.title-main {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    letter-spacing: 10px;
    color: var(--color-text-primary);
    text-shadow: 0 0 60px var(--color-accent-glow);
    margin-bottom: var(--spacing-xs);
}

.title-desc {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 5px;
    color: var(--color-accent);
}

.hero-intro {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
}

.hero-data {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

.data-item {
    text-align: center;
    padding: 0 var(--spacing-md);
}

.data-value {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.data-num {
    letter-spacing: 2px;
}

.data-plus,
.data-unit {
    font-size: 0.6em;
    color: var(--color-accent-light);
}

.data-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
}

.data-divider {
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, var(--color-border-light), transparent);
}

.hero-scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.65rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    margin: 0.75rem auto 0;
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; height: 40px; }
    50% { opacity: 0.5; height: 30px; }
}

/* ========================================
   通用区块样式
   ======================================== */
.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-alt {
    background: var(--color-bg-secondary);
}

.section-alt::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-code {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: 5px;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.section-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
}

.section-line {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: var(--spacing-md) auto 0;
}

.section-action {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ========================================
   任务类型 / 陪玩项目
   ======================================== */
.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.mission-card {
    position: relative;
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
}

.mission-card:hover {
    background: rgba(18, 18, 24, 0.9);
    transform: translateY(-5px);
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    background: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mission-card:hover .card-glow {
    opacity: 0.3;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.mission-code {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 2px;
    color: var(--color-text-muted);
}

.mission-icon {
    font-size: 1.75rem;
}

.mission-name {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.mission-brief {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.mission-specs {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.mission-specs li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
}

.spec-label {
    width: 40px;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.spec-bar {
    flex: 1;
    height: 4px;
    background: var(--color-border);
    position: relative;
}

.spec-bar i {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--color-accent-dark), var(--color-accent));
}

.mission-link {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ========================================
   行动报价 / 陪玩价格
   ======================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.price-card {
    position: relative;
    background: var(--color-bg-card);
    text-align: center;
    transition: all 0.3s ease;
}

.price-card:hover {
    transform: translateY(-5px);
}

.price-card.featured {
    background: rgba(212, 165, 32, 0.05);
}

.price-card.featured .card-border {
    border-color: var(--color-border-accent);
}

.featured-tag {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.35rem 1rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-bg-deep);
    background: var(--color-accent);
}

.price-tier {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.tier-badge {
    display: block;
    font-family: var(--font-display);
    font-size: 0.65rem;
    letter-spacing: 3px;
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.tier-name {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.price-amount {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.price-currency {
    font-size: 1rem;
    color: var(--color-text-secondary);
    vertical-align: top;
}

.price-value {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 2px;
}

.price-unit {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.price-includes {
    list-style: none;
    padding: var(--spacing-md);
    text-align: left;
}

.price-includes li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0;
    font-size: 0.85rem;
    border-bottom: 1px solid var(--color-border);
}

.price-includes li:last-child {
    border-bottom: none;
}

.price-includes .included {
    color: var(--color-text-primary);
}

.price-includes .excluded {
    color: var(--color-text-muted);
}

.check {
    color: var(--color-accent);
}

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

.price-btn {
    display: block;
    padding: 1rem;
    margin: var(--spacing-sm);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-primary);
    background: transparent;
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

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

.price-btn.primary {
    background: rgba(212, 165, 32, 0.1);
    border-color: var(--color-border-accent);
    color: var(--color-accent);
}

.price-btn.primary:hover {
    background: rgba(212, 165, 32, 0.2);
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.pricing-note {
    text-align: center;
    margin-top: var(--spacing-lg);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

/* ========================================
   部署流程 / 陪玩流程
   ======================================== */
.process-timeline {
    position: relative;
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
}

.timeline-line {
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-light), var(--color-border-light), transparent);
    transform: translateY(-50%);
}

.process-step {
    position: relative;
    flex: 1;
    text-align: center;
    max-width: 280px;
}

.step-marker {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.marker-num {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-border-light);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.marker-dot {
    display: block;
    width: 12px;
    height: 12px;
    margin: 0 auto;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-accent-glow);
}

.step-card {
    position: relative;
    background: var(--color-bg-card);
    padding: var(--spacing-md);
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-3px);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.step-title {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.step-desc {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ========================================
   战术优势 / 护航优势
   ======================================== */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.advantage-card {
    position: relative;
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-3px);
}

.adv-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.adv-title {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.adv-desc {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ========================================
   作战手册 / 游戏攻略
   ======================================== */
.guide-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-md);
}

.guide-card {
    position: relative;
    background: var(--color-bg-card);
    grid-column: span 4;
    transition: all 0.3s ease;
}

.guide-card:hover {
    transform: translateY(-3px);
}

.guide-card.featured {
    grid-column: span 8;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.guide-image {
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--color-border);
}

.guide-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-border-light);
}

.placeholder-icon {
    font-size: 3rem;
    letter-spacing: -5px;
}

.placeholder-text {
    font-family: var(--font-display);
    font-size: 0.8rem;
    letter-spacing: 3px;
}

.guide-content {
    padding: var(--spacing-md);
}

.guide-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(212, 165, 32, 0.1);
    border: 1px solid var(--color-border-accent);
    margin-bottom: var(--spacing-sm);
}

.guide-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
}

.featured .guide-title {
    font-size: 1.25rem;
}

.guide-excerpt {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.guide-meta {
    display: flex;
    gap: var(--spacing-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* ========================================
   情报问答 / FAQ
   ======================================== */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-sm);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    list-style: none;
    transition: all 0.3s ease;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question:hover {
    background: rgba(212, 165, 32, 0.03);
}

.faq-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    font-family: var(--font-display);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-bg-deep);
    background: var(--color-accent);
    flex-shrink: 0;
}

.faq-text {
    flex: 1;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.faq-toggle {
    width: 12px;
    height: 12px;
    position: relative;
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    background: var(--color-text-muted);
    transition: all 0.3s ease;
}

.faq-toggle::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    transform: translateY(-50%);
}

.faq-toggle::after {
    top: 0;
    left: 50%;
    width: 1px;
    height: 100%;
    transform: translateX(-50%);
}

.faq-item[open] .faq-toggle::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.faq-item[open] .faq-toggle::before {
    background: var(--color-accent);
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    padding-left: calc(var(--spacing-md) + 28px + var(--spacing-sm));
}

.faq-answer p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.9;
}

/* ========================================
   战地快报 / 资讯模块
   ======================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-md);
}

.news-card {
    position: relative;
    background: var(--color-bg-card);
    grid-column: span 4;
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-3px);
}

.news-card.featured {
    grid-column: span 6;
}

.news-image {
    height: 180px;
    background: linear-gradient(135deg, var(--color-bg-tertiary), var(--color-bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--color-border);
}

.news-placeholder {
    font-family: var(--font-display);
    font-size: 1.25rem;
    letter-spacing: 5px;
    color: var(--color-border-light);
}

.news-content {
    padding: var(--spacing-md);
}

.news-tag {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xs);
}

.news-tag.urgent {
    color: var(--color-red);
    background: rgba(194, 58, 58, 0.1);
    border-color: rgba(194, 58, 58, 0.3);
}

.news-title {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: var(--spacing-xs);
}

.news-excerpt {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
}

.meta-date {
    font-family: var(--font-mono);
    color: var(--color-text-muted);
}

.news-link {
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ========================================
   请求支援 / 联系
   ======================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.contact-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: var(--spacing-xs);
}

.contact-desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.channel-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

.channel-icon {
    font-size: 1.5rem;
}

.channel-info h4 {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 0.15rem;
}

.channel-info p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.contact-form {
    position: relative;
    background: var(--color-bg-card);
    padding: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 15px var(--color-accent-glow);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23888898" stroke-width="2"><polyline points="6,9 12,15 18,9"/></svg>');
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    position: relative;
    width: 100%;
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    background: rgba(212, 165, 32, 0.1);
    border: 1px solid var(--color-border-accent);
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: rgba(212, 165, 32, 0.2);
    box-shadow: 0 0 30px var(--color-accent-glow);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-main {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-sm);
}

.footer-slogan {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

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

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

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

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 1px;
}

/* ========================================
   响应式设计 (PC端优先)
   ======================================== */
@media (max-width: 1200px) {
    .mission-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }
    
    .guide-card {
        grid-column: span 6;
    }
    
    .guide-card.featured {
        grid-column: span 12;
    }
    
    .news-card {
        grid-column: span 6;
    }
    
    .news-card.featured {
        grid-column: span 12;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        justify-items: center;
    }
}

@media (max-width: 768px) {
    .hero-data {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .data-divider {
        display: none;
    }
    
    .data-item {
        flex: 1 1 40%;
    }
    
    .process-timeline {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .timeline-line {
        display: none;
    }
    
    .process-step {
        max-width: 100%;
    }
    
    .mission-grid,
    .pricing-grid,
    .advantage-grid {
        grid-template-columns: 1fr;
    }
    
    .guide-card,
    .guide-card.featured,
    .news-card,
    .news-card.featured {
        grid-column: span 12;
    }
    
    .guide-card.featured {
        grid-template-columns: 1fr;
    }
    
    .guide-image {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}