/* ==================== 全局样式 ==================== */
:root {
    --primary: #1a365d;
    --primary-light: #2c5282;
    --secondary: #c53030;
    --accent: #d69e2e;
    --accent-light: #ecc94b;
    --bg-dark: #0f172a;
    --bg-light: #f7fafc;
    --text-dark: #1a202c;
    --text-light: #718096;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1a365d 0%, #2c5282 100%);
    --gradient-accent: linear-gradient(135deg, #d69e2e 0%, #ecc94b 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1a365d 50%, #2c5282 100%);
    --gradient-glow: linear-gradient(135deg, rgba(214, 158, 46, 0.3) 0%, rgba(236, 201, 75, 0.1) 100%);
    --shadow-glow: 0 0 30px rgba(214, 158, 46, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--white);
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

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

/* 选中文字样式 */
::selection {
    background: var(--accent);
    color: var(--primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.98);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
    border-bottom: 1px solid rgba(214, 158, 46, 0.2);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-logo:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 900;
    color: var(--primary);
    box-shadow: var(--shadow-glow);
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-3px) rotate(2deg); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
    width: 60%;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--white);
    background: rgba(214, 158, 46, 0.15);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s ease;
}

/* ==================== Hero 区域 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px 60px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-bg::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='0.03'%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");
    z-index: -1;
}

/* 粒子效果 */
.particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat linear infinite;
}

@keyframes particleFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 900px;
    animation: heroFadeIn 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--primary);
    padding: 10px 30px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 30px;
    letter-spacing: 3px;
    animation: badgePulse 2s ease-in-out infinite;
    box-shadow: 0 4px 20px rgba(214, 158, 46, 0.4);
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); box-shadow: 0 4px 20px rgba(214, 158, 46, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 6px 30px rgba(214, 158, 46, 0.6); }
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #e2e8f0 50%, #ffffff 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShine 5s ease infinite;
    text-shadow: 0 0 80px rgba(255,255,255,0.3);
}

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

.hero h2 {
    font-size: 1.6rem;
    font-weight: 400;
    color: rgba(255,255,255,0.9);
    margin-bottom: 20px;
    letter-spacing: 6px;
    animation: fadeInUp 1s ease 0.3s both;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 50px;
    letter-spacing: 3px;
    animation: fadeInUp 1s ease 0.5s both;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-bottom: 50px;
    animation: fadeInUp 1s ease 0.7s both;
}

.stat-item {
    text-align: center;
    position: relative;
}

.stat-item::after {
    content: '';
    position: absolute;
    right: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

.stat-item:last-child::after {
    display: none;
}

.stat-number {
    display: block;
    font-size: 4rem;
    font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    animation: numberGlow 2s ease-in-out infinite alternate;
}

@keyframes numberGlow {
    from { filter: drop-shadow(0 0 10px rgba(214, 158, 46, 0.5)); }
    to { filter: drop-shadow(0 0 20px rgba(214, 158, 46, 0.8)); }
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-top: 10px;
}

.hero-cta {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--primary);
    padding: 18px 50px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.05rem;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 25px rgba(214, 158, 46, 0.4);
    animation: fadeInUp 1s ease 0.9s both;
    position: relative;
    overflow: hidden;
}

.hero-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.hero-cta:hover::before {
    left: 100%;
}

.hero-cta:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 35px rgba(214, 158, 46, 0.6);
}

.hero-decoration {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: -1;
}

.deco-circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(214, 158, 46, 0.1);
}

.deco-1 {
    width: 800px;
    height: 800px;
    top: -300px;
    right: -300px;
    animation: rotate 80s linear infinite;
}

.deco-2 {
    width: 500px;
    height: 500px;
    bottom: -150px;
    left: -150px;
    animation: rotate 60s linear infinite reverse;
}

.deco-3 {
    width: 300px;
    height: 300px;
    top: 40%;
    left: 5%;
    animation: pulse 5s ease-in-out infinite, rotate 40s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 0.2; transform: scale(1) rotate(0deg); }
    50% { opacity: 0.4; transform: scale(1.1) rotate(180deg); }
}

/* 向下滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.6);
    font-size: 0.8rem;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-indicator span {
    letter-spacing: 2px;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 12px;
    position: relative;
}

.scroll-mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(10px); opacity: 0.3; }
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ==================== 通用区块 ==================== */
.section {
    padding: 120px 0;
    position: relative;
}

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

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header.light h2,
.section-header.light .section-desc {
    color: var(--white);
}

.section-header.light .section-tag {
    color: var(--accent);
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--secondary);
    letter-spacing: 4px;
    margin-bottom: 20px;
    position: relative;
    padding: 0 20px;
}

.section-tag::before,
.section-tag::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background: var(--accent);
}

.section-tag::before { left: -20px; }
.section-tag::after { right: -20px; }

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 6px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.section-desc {
    font-size: 1.15rem;
    color: var(--text-light);
    letter-spacing: 3px;
}

/* ==================== 计划总则 ==================== */
.overview {
    background: var(--bg-light);
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.overview-card {
    background: var(--white);
    border-radius: 24px;
    padding: 45px 35px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.overview-card:hover::before {
    transform: scaleX(1);
}

.overview-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 25px 60px rgba(0,0,0,0.15);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 25px;
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.overview-card h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.overview-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.highlight-text {
    color: var(--secondary) !important;
    font-weight: 500;
}

.principle-list {
    list-style: none;
}

.principle-list li {
    padding: 10px 0;
    color: var(--text-light);
    font-size: 0.95rem;
    border-bottom: 1px dashed rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.principle-list li:last-child {
    border-bottom: none;
}

.principle-list li:hover {
    padding-left: 10px;
    color: var(--primary);
}

.principle-list strong {
    color: var(--primary);
}

/* 四大核心方向 */
.direction-section {
    background: var(--gradient-primary);
    border-radius: 30px;
    padding: 60px;
    margin-top: 40px;
    position: relative;
    overflow: hidden;
}

.direction-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.direction-title {
    text-align: center;
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 50px;
    letter-spacing: 4px;
    position: relative;
}

.direction-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    position: relative;
}

.direction-card {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 40px 25px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.direction-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.direction-card:hover::before {
    opacity: 0.15;
}

.direction-card:hover {
    transform: translateY(-15px) scale(1.05);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(214, 158, 46, 0.3);
}

.direction-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.direction-card h4 {
    color: var(--white);
    font-size: 1.15rem;
    letter-spacing: 3px;
    position: relative;
    z-index: 1;
}

/* 实施周期 */
.cycle-info {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    margin-top: 50px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    border: 1px solid rgba(0,0,0,0.05);
}

.cycle-info h3 {
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 15px;
    letter-spacing: 3px;
}

.cycle-info p {
    color: var(--text-light);
    font-size: 1rem;
}

/* ==================== 组员介绍 ==================== */
.members {
    background: var(--bg-dark);
    position: relative;
}

.members::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(214, 158, 46, 0.1) 0%, transparent 60%);
}

.member-groups {
    display: flex;
    flex-direction: column;
    gap: 50px;
    position: relative;
}

.member-group {
    background: rgba(255,255,255,0.03);
    border-radius: 24px;
    padding: 45px;
    border: 1px solid rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.member-group::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.member-group:hover::before {
    opacity: 1;
}

.group-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 35px;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.group-icon {
    font-size: 2.5rem;
    animation: iconFloat 3s ease-in-out infinite;
}

.group-header h3 {
    color: var(--white);
    font-size: 1.4rem;
    letter-spacing: 3px;
}

.member-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.member-card {
    background: rgba(255,255,255,0.05);
    border-radius: 18px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
}

.member-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.member-card:hover::before {
    opacity: 0.1;
}

.member-card:hover {
    transform: translateY(-12px) scale(1.05);
    background: rgba(255,255,255,0.1);
    border-color: rgba(214, 158, 46, 0.3);
    box-shadow: 0 15px 40px rgba(214, 158, 46, 0.2);
}

.member-avatar {
    width: 70px;
    height: 70px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    margin: 0 auto 18px;
    box-shadow: 0 4px 15px rgba(214, 158, 46, 0.3);
    transition: all 0.5s ease;
    position: relative;
    z-index: 1;
}

.member-card:hover .member-avatar {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 25px rgba(214, 158, 46, 0.5);
}

.member-info {
    position: relative;
    z-index: 1;
}

.member-info h4 {
    color: var(--white);
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.member-info p {
    color: rgba(255,255,255,0.6);
    font-size: 0.85rem;
    margin-bottom: 10px;
}

.member-role {
    display: inline-block;
    background: var(--secondary);
    color: var(--white);
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    animation: rolePulse 2s ease-in-out infinite;
}

@keyframes rolePulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(197, 48, 48, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(197, 48, 48, 0); }
}

/* ==================== 活动时间线 ==================== */
.timeline-section {
    background: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--accent) 0%, var(--primary) 50%, var(--accent) 100%);
    border-radius: 4px;
    box-shadow: 0 0 20px rgba(214, 158, 46, 0.3);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
    display: flex;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.timeline-marker .month {
    display: block;
    width: 90px;
    height: 90px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    box-shadow: 0 4px 25px rgba(214, 158, 46, 0.5);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    animation: markerGlow 3s ease-in-out infinite;
}

@keyframes markerGlow {
    0%, 100% { box-shadow: 0 4px 25px rgba(214, 158, 46, 0.5); }
    50% { box-shadow: 0 4px 35px rgba(214, 158, 46, 0.8), 0 0 50px rgba(214, 158, 46, 0.3); }
}

.timeline-item:hover .timeline-marker .month {
    transform: translateX(-50%) scale(1.15) rotate(10deg);
    box-shadow: 0 8px 40px rgba(214, 158, 46, 0.7);
}

.timeline-content {
    width: calc(50% - 70px);
    background: var(--white);
    border-radius: 24px;
    padding: 35px;
    box-shadow: 0 15px 50px rgba(0,0,0,0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.timeline-content:hover::before {
    opacity: 1;
}

.timeline-content:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 70px rgba(0,0,0,0.15);
    border-color: rgba(214, 158, 46, 0.2);
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 12px;
}

.timeline-header h3 {
    font-size: 1.25rem;
    color: var(--primary);
    letter-spacing: 2px;
}

.timeline-tag {
    background: var(--bg-dark);
    color: var(--white);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--secondary);
    margin-bottom: 22px;
    font-weight: 500;
}

.timeline-details {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-bottom: 22px;
}

.detail-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.detail-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    animation: iconFloat 3s ease-in-out infinite;
}

.detail-item strong {
    display: block;
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 4px;
}

.detail-item p {
    color: var(--text-light);
    font-size: 0.85rem;
}

.visit-companies {
    display: flex;
    gap: 15px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.visit-card {
    flex: 1;
    min-width: 130px;
    background: var(--bg-light);
    border-radius: 16px;
    padding: 22px 15px;
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

.visit-card:hover {
    transform: translateY(-8px) scale(1.05);
    background: var(--white);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--accent);
}

.visit-icon {
    font-size: 2.2rem;
    display: block;
    margin-bottom: 12px;
}

.visit-card h5 {
    color: var(--primary);
    font-size: 0.95rem;
    margin-bottom: 4px;
}

.visit-card p {
    color: var(--text-light);
    font-size: 0.75rem;
}

.timeline-activities {
    margin-bottom: 22px;
}

.timeline-activities p {
    color: var(--text-light);
    font-size: 0.9rem;
    padding: 8px 0;
    padding-left: 22px;
    position: relative;
    border-bottom: 1px dashed rgba(0,0,0,0.05);
}

.timeline-activities p:last-child {
    border-bottom: none;
}

.timeline-activities p::before {
    content: '▸';
    position: absolute;
    left: 5px;
    color: var(--accent);
}

.timeline-result {
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.03) 0%, rgba(44, 82, 130, 0.08) 100%);
    padding: 18px;
    border-radius: 14px;
    font-size: 0.9rem;
    color: var(--primary);
    border-left: 4px solid var(--accent);
    transition: all 0.3s ease;
}

.timeline-result:hover {
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.06) 0%, rgba(44, 82, 130, 0.12) 100%);
}

.timeline-result strong {
    color: var(--secondary);
}

/* 常态化配套活动 */
.routine-activities {
    margin-top: 100px;
    padding: 60px;
    background: var(--gradient-primary);
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.routine-activities::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='0.03'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.routine-title {
    text-align: center;
    color: var(--white);
    font-size: 1.6rem;
    margin-bottom: 50px;
    letter-spacing: 4px;
    position: relative;
}

.routine-title span {
    color: var(--accent);
    font-size: 1.1rem;
    display: block;
    margin-top: 8px;
    font-weight: 400;
}

.routine-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    position: relative;
}

.routine-card {
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.routine-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, var(--accent), transparent);
    animation: borderRotate 6s linear infinite;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.routine-card:hover::before {
    opacity: 0.3;
}

@keyframes borderRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.routine-card:hover {
    transform: translateY(-15px) scale(1.05);
    background: rgba(255,255,255,0.15);
    border-color: var(--accent);
    box-shadow: 0 20px 50px rgba(214, 158, 46, 0.3);
}

.routine-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
}

.routine-card h4 {
    color: var(--white);
    font-size: 1.05rem;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.routine-card p {
    color: rgba(255,255,255,0.7);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

/* ==================== 组织保障 ==================== */
.guarantee {
    background: var(--bg-dark);
    position: relative;
}

.guarantee::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at bottom, rgba(214, 158, 46, 0.1) 0%, transparent 60%);
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 35px;
    position: relative;
}

.guarantee-card {
    background: rgba(255,255,255,0.03);
    border-radius: 24px;
    padding: 45px;
    border: 1px solid rgba(255,255,255,0.05);
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.guarantee-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.guarantee-card:hover::before {
    transform: scaleX(1);
}

.guarantee-card:hover {
    background: rgba(255,255,255,0.06);
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    border-color: rgba(214, 158, 46, 0.2);
}

.guarantee-number {
    font-size: 5rem;
    font-weight: 900;
    color: rgba(214, 158, 46, 0.1);
    position: absolute;
    top: 15px;
    right: 25px;
    line-height: 1;
}

.guarantee-card h3 {
    color: var(--white);
    font-size: 1.4rem;
    margin-bottom: 18px;
    letter-spacing: 3px;
}

.guarantee-card p {
    color: rgba(255,255,255,0.6);
    font-size: 0.95rem;
    line-height: 1.9;
}

/* ==================== 预期成果 ==================== */
.achievement {
    background: linear-gradient(180deg, var(--bg-light) 0%, #e2e8f0 100%);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 100px;
}

.achievement-card {
    background: var(--white);
    border-radius: 24px;
    padding: 45px 30px;
    text-align: center;
    box-shadow: 0 15px 50px rgba(0,0,0,0.08);
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.05);
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-accent);
}

.achievement-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.achievement-card:hover::after {
    opacity: 0.05;
}

.achievement-card:hover {
    transform: translateY(-20px) scale(1.03);
    box-shadow: 0 30px 80px rgba(0,0,0,0.15);
}

.achievement-icon {
    font-size: 4rem;
    margin-bottom: 25px;
    display: block;
    animation: iconFloat 3s ease-in-out infinite;
    position: relative;
    z-index: 1;
}

.achievement-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(26, 54, 93, 0.08);
}

.achievement-card h3 {
    font-size: 1.25rem;
    color: var(--primary);
    margin-bottom: 18px;
    letter-spacing: 3px;
    position: relative;
    z-index: 1;
}

.achievement-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.9;
    position: relative;
    z-index: 1;
}

/* 底部标语 */
.final-cta {
    text-align: center;
    padding: 80px 20px;
    position: relative;
}

.final-cta h2 {
    font-size: 3rem;
    color: var(--primary);
    letter-spacing: 12px;
    margin-bottom: 20px;
    animation: textGlow 3s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from { text-shadow: 0 0 20px rgba(26, 54, 93, 0.1); }
    to { text-shadow: 0 0 40px rgba(26, 54, 93, 0.3); }
}

.final-cta p {
    font-size: 1.25rem;
    color: var(--text-light);
    letter-spacing: 4px;
    margin-bottom: 40px;
}

.cta-decoration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 25px;
}

.cta-line {
    width: 120px;
    height: 2px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.cta-star {
    color: var(--accent);
    font-size: 2rem;
    animation: starPulse 2s ease-in-out infinite;
}

@keyframes starPulse {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.2) rotate(180deg); }
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-dark);
    padding: 80px 0 50px;
    position: relative;
}

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

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    color: var(--white);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 25px;
}

.footer-logo .logo-icon {
    animation: logoFloat 3s ease-in-out infinite;
}

.footer-info {
    margin-bottom: 35px;
}

.footer-info p {
    color: rgba(255,255,255,0.6);
    font-size: 0.95rem;
    margin: 8px 0;
}

.footer-divider {
    width: 80px;
    height: 2px;
    background: var(--gradient-accent);
    margin: 0 auto 25px;
}

.footer-copy {
    color: rgba(255,255,255,0.4);
    font-size: 0.85rem;
    letter-spacing: 3px;
}

/* ==================== 滚动到顶部按钮 ==================== */
.scroll-top-btn {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 55px;
    height: 55px;
    background: var(--gradient-accent);
    border: none;
    border-radius: 50%;
    color: var(--primary);
    font-size: 1.6rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    box-shadow: 0 4px 20px rgba(214, 158, 46, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    transform: scale(1.15) rotate(360deg);
    box-shadow: 0 8px 30px rgba(214, 158, 46, 0.6);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .overview-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .direction-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .member-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .timeline::before {
        left: 35px;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        padding-left: 90px;
    }

    .timeline-marker {
        left: 35px;
    }

    .timeline-content {
        width: 100%;
    }

    .routine-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .achievement-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .guarantee-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-stats {
        gap: 40px;
    }

    .stat-number {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 80px 20px 100px;
    }

    .hero h1 {
        font-size: 2.2rem;
        letter-spacing: 4px;
    }

    .hero h2 {
        font-size: 1rem;
        letter-spacing: 2px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 25px;
    }

    .stat-item::after {
        display: none;
    }

    .section {
        padding: 80px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .overview-grid {
        grid-template-columns: 1fr;
    }

    .direction-grid {
        grid-template-columns: 1fr;
    }

    .member-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .direction-section,
    .routine-activities {
        padding: 40px 25px;
    }

    .routine-grid {
        grid-template-columns: 1fr;
    }

    .achievement-grid {
        grid-template-columns: 1fr;
    }

    .scroll-top-btn {
        bottom: 25px;
        right: 25px;
        width: 48px;
        height: 48px;
    }

    .final-cta h2 {
        font-size: 2rem;
        letter-spacing: 6px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .member-list {
        grid-template-columns: 1fr;
    }

    .timeline-marker .month {
        width: 70px;
        height: 70px;
        font-size: 0.9rem;
    }

    .timeline-content {
        padding: 25px 20px;
    }
}