/* ===== 全局重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'ZCOOL KuaiLe', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #f7f3ff;
    background-image: radial-gradient(circle at 10% 20%, rgba(255, 236, 210, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 90% 80%, rgba(210, 230, 255, 0.4) 0%, transparent 50%);
    min-height: 100vh;
    color: #2d2a3e;
    padding-bottom: 60px;
}

/* ===== Header ===== */
.header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    padding: 14px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid #e8deff;
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo-icon {
    font-size: 28px;
}
.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #7c4dff, #b388ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 16px 24px;
    flex-wrap: wrap;
}
.nav-link {
    text-decoration: none;
    color: #3d3566;
    font-size: 15px;
    font-weight: 500;
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: 0.2s;
}
.nav-link:hover {
    border-bottom-color: #7c4dff;
    color: #7c4dff;
}
.nav-link.active {
    border-bottom-color: #7c4dff;
    color: #7c4dff;
}

.btn-primary {
    background: linear-gradient(145deg, #7c4dff, #651fff);
    border: none;
    padding: 8px 24px;
    border-radius: 40px;
    color: white;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.3);
    transition: 0.2s;
    font-family: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 77, 255, 0.4);
}
.btn-primary:active {
    transform: scale(0.96);
}
.btn-primary.btn-large {
    padding: 14px 40px;
    font-size: 18px;
}

/* ===== Hero ===== */
.hero {
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.hero-content {
    flex: 1;
    min-width: 280px;
}

.hero-badge {
    display: inline-block;
    background: rgba(124, 77, 255, 0.12);
    color: #7c4dff;
    font-size: 14px;
    font-weight: 600;
    padding: 4px 16px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #1f1a2e, #7c4dff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 18px;
    color: #5a4e7a;
    line-height: 1.8;
    margin-bottom: 24px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn-secondary {
    background: white;
    border: 2px solid #e8deff;
    padding: 12px 32px;
    border-radius: 40px;
    color: #3d3566;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
    font-family: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-secondary:hover {
    border-color: #7c4dff;
    color: #7c4dff;
    transform: translateY(-2px);
}

.hero-image {
    flex: 1;
    min-width: 280px;
    display: flex;
    justify-content: center;
}

.hero-image .illustration {
    font-size: 160px;
    line-height: 1;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-16px); }
}

/* ===== Countdown ===== */
.countdown-section {
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 0 20px;
}

.countdown-card {
    background: linear-gradient(145deg, rgba(124, 77, 255, 0.08), rgba(179, 136, 255, 0.12));
    border-radius: 32px;
    padding: 32px 40px;
    text-align: center;
    border: 1px solid rgba(124, 77, 255, 0.15);
}

.countdown-card h2 {
    font-size: 20px;
    color: #3d3566;
    margin-bottom: 20px;
}

.countdown-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.countdown-item {
    background: white;
    border-radius: 20px;
    padding: 16px 24px;
    min-width: 80px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.countdown-number {
    font-size: 40px;
    font-weight: 700;
    color: #7c4dff;
    line-height: 1;
}

.countdown-label {
    font-size: 14px;
    color: #8c81aa;
    margin-top: 4px;
}

/* ===== Sections ===== */
.section {
    max-width: 1200px;
    margin: 60px auto 0;
    padding: 0 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1f1a2e;
    margin-bottom: 8px;
}

.section-header p {
    font-size: 16px;
    color: #8c81aa;
}

/* ===== Timeline ===== */
.timeline-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 700px;
    margin: 0 auto;
}

.timeline-step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: white;
    border-radius: 20px;
    padding: 20px 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: 0.25s;
    border-left: 4px solid #b388ff;
}

.timeline-step:hover {
    transform: translateX(6px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

.timeline-step .step-number {
    font-size: 28px;
    font-weight: 700;
    color: #7c4dff;
    min-width: 48px;
    line-height: 1;
}

.timeline-step .step-content h3 {
    font-size: 17px;
    font-weight: 600;
    color: #1f1a2e;
    margin-bottom: 4px;
}

.timeline-step .step-content p {
    font-size: 15px;
    color: #6d6390;
}

/* ===== Features Grid ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    border-radius: 24px;
    padding: 28px 24px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: 0.25s;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(124, 77, 255, 0.08);
}

.feature-card .icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1f1a2e;
    margin-bottom: 6px;
}

.feature-card p {
    font-size: 14px;
    color: #6d6390;
    line-height: 1.6;
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.faq-question {
    padding: 18px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 16px;
    color: #1f1a2e;
    transition: 0.2s;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.faq-question:hover {
    background: #f8f6ff;
}

.faq-question .toggle {
    font-size: 22px;
    color: #7c4dff;
    transition: 0.3s;
    flex-shrink: 0;
    margin-left: 12px;
}

.faq-question .toggle.open {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
    color: #5a4e7a;
    font-size: 15px;
    line-height: 1.7;
}

.faq-answer.open {
    max-height: 300px;
    padding: 0 24px 20px 24px;
}

/* ===== CTA ===== */
.cta-section {
    max-width: 1200px;
    margin: 60px auto 0;
    padding: 0 20px;
}

.cta-card {
    background: linear-gradient(145deg, #7c4dff, #651fff);
    border-radius: 40px;
    padding: 48px 40px;
    text-align: center;
    color: white;
}

.cta-card h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-card p {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: 24px;
    line-height: 1.6;
}

.cta-card .btn-primary {
    background: white;
    color: #7c4dff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.cta-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.cta-card .btn-secondary-white {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 12px 32px;
    border-radius: 40px;
    color: white;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: 0.2s;
    font-family: inherit;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cta-card .btn-secondary-white:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    max-width: 1200px;
    margin: 60px auto 0;
    padding: 30px 20px 0;
    border-top: 1px solid #e8deff;
    text-align: center;
}

.footer p {
    color: #8c81aa;
    font-size: 14px;
    line-height: 1.8;
}

.footer .footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer .footer-links a {
    color: #5a4e7a;
    text-decoration: none;
    font-size: 14px;
    transition: 0.2s;
}

.footer .footer-links a:hover {
    color: #7c4dff;
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .hero {
        margin-top: 24px;
        gap: 24px;
    }

    .hero-content h1 {
        font-size: 30px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .hero-image .illustration {
        font-size: 100px;
    }

    .countdown-card {
        padding: 24px 20px;
    }

    .countdown-grid {
        gap: 12px;
    }

    .countdown-item {
        padding: 12px 16px;
        min-width: 60px;
    }

    .countdown-number {
        font-size: 28px;
    }

    .section-header h2 {
        font-size: 26px;
    }

    .timeline-step {
        padding: 16px 18px;
    }

    .cta-card {
        padding: 32px 20px;
    }

    .cta-card h2 {
        font-size: 24px;
    }

    .cta-actions {
        flex-direction: column;
        align-items: center;
    }

    .header-inner {
        padding: 0 12px;
    }

    .nav {
        gap: 10px 16px;
    }

    .nav-link {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 24px;
    }

    .hero-image .illustration {
        font-size: 72px;
    }

    .countdown-number {
        font-size: 22px;
    }

    .countdown-item {
        padding: 10px 12px;
        min-width: 50px;
    }

    .timeline-step .step-number {
        font-size: 20px;
        min-width: 36px;
    }

    .btn-primary.btn-large {
        padding: 12px 28px;
        font-size: 16px;
    }
}