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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fafafa;
    min-height: 100vh;
}

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

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

.current-time {
    font-size: 1.5em;
    color: #333;
    font-weight: 500;
    padding: 20px;
    background: white;
    border-radius: 15px;
    border: 1px solid #ddd;
    display: inline-block;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.calendar-section,
.links-section,
.cheatsheet-section,
.deliverables-section,
.hero-section,
.ai-tips-section {
    margin-bottom: 40px;
}

.calendar-section h2,
.links-section h2,
.cheatsheet-section h2,
.deliverables-section h2,
.hero-section h2,
.ai-tips-section h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    text-align: center;
    color: #333;
}

.calendar {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-bottom: 40px;
}

.day-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
}

.day-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.date-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.date-header h3 {
    font-size: 1.4rem;
    color: #F3A21C;
}

.weekday {
    background: #F3A21C;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.schedule {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.day-card[data-date="2026-08-06"] {
    display: flex;
    flex-direction: column;
}

.day-card[data-date="2026-08-06"] .schedule {
    margin-top: auto;
}

.event {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #667eea;
    transition: background-color 0.3s ease;
}

.event:hover {
    background: #e9ecef;
}

.event .time {
    font-weight: 600;
    color: #667eea;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 5px;
}

.event .title {
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    display: block;
}

.event.break {
    padding: 8px 15px;
    background: #e8f5e8;
    border-left: 4px solid #28a745;
    min-height: auto;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.event.break:hover {
    background: #d4edda;
}

.event.break .time {
    color: #28a745;
    font-size: 0.85rem;
}

.event.break .title {
    color: #155724;
    font-size: 0.9rem;
    margin-bottom: 0;
}

.event-desc {
    font-size: 0.85rem;
    color: #666;
    font-style: italic;
    line-height: 1.4;
}

.current-day {
    border: 3px solid #F3A21C;
    box-shadow: 0 0 20px rgba(243, 162, 28, 0.5);
    transform: scale(1.02);
}

.current-event {
    background: #72ACC8 !important;
    color: white !important;
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(114, 172, 200, 0.4);
    border-left-color: #ffd700;
}

.current-event .time {
    color: #ffd700;
}

.current-event .title {
    color: white;
}

.current-event .event-desc {
    color: rgba(255, 255, 255, 0.9);
}

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

.day-card {
    animation: fadeInUp 0.6s ease forwards;
}

.day-card:nth-child(1) { animation-delay: 0.1s; }
.day-card:nth-child(2) { animation-delay: 0.2s; }
.day-card:nth-child(3) { animation-delay: 0.3s; }

.deliverables-section {
    margin-top: 40px;
}

.deliverables {
    display: flex;
    flex-direction: row;
    gap: 20px;
    margin-top: 20px;
}

.deliverable-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    border: 1px solid #ddd;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    flex: 1;
}

.deliverable-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.deliverable-card.due-today {
    background: #ffebee;
    border-color: #f44336;
    border-width: 2px;
}

.deliverable-card.due-today:hover {
    background: #ffcdd2;
    box-shadow: 0 10px 30px rgba(244, 67, 54, 0.3);
}

.deliverable-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.deliverable-header h3 {
    margin: 0;
    color: #F3A21C;
    font-size: 1.3em;
    font-weight: 600;
}

.deadline {
    background: #F3A21C;
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    white-space: nowrap;
}

.deliverable-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.deliverable-content p {
    margin: 0;
    color: #666;
    line-height: 1.5;
    font-size: 0.95em;
}

.deliverable-content .deliverable-meta {
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px solid #eee;
    color: #888;
    font-size: 0.85em;
}

.deliverable-tracks {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.track-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.track-name {
    color: #333;
    font-size: 0.9em;
    font-weight: 600;
    line-height: 1.4;
}

.track-deliverable {
    color: #666;
    font-size: 0.9em;
    line-height: 1.4;
}

.template-link {
    display: inline-block;
    margin-top: 8px;
    color: #F3A21C;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.template-link:hover {
    color: #72ACC8;
    text-decoration: underline;
}

/* 两步上手 */
.hero-inner {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
}

.hero-header {
    text-align: center;
    margin-bottom: 24px;
}

.hero-lead {
    margin-top: 8px;
    font-size: 1.1rem;
    color: #666;
}

.hero-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.hero-card {
    display: flex;
    flex-direction: column;
    background: white;
    border-radius: 16px;
    padding: 28px 24px;
    text-decoration: none;
    color: inherit;
    border: 2px solid #e8e8e8;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    animation: fadeInUp 0.6s ease forwards;
    min-height: 200px;
}

.hero-card:first-child {
    border-top: 4px solid #667eea;
}

.hero-card:last-child {
    border-top: 4px solid #F3A21C;
}

.hero-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    border-color: #d0d0d0;
}

.hero-step {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #667eea;
    background: #eef1fb;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
    width: fit-content;
}

.hero-card:last-child .hero-step {
    color: #F3A21C;
    background: #fef3e2;
}

.hero-title {
    font-size: 1.35rem;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.35;
}

.hero-desc {
    flex: 1;
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.hero-cta {
    font-size: 0.95rem;
    font-weight: 600;
    color: #667eea;
}

.hero-card:last-child .hero-cta {
    color: #F3A21C;
}

/* AI Tips */
.tips-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tip-item {
    background: white;
    border-radius: 15px;
    padding: 25px;
    border: 1px solid #ddd;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.tip-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.tip-content {
    line-height: 1.6;
    color: #333;
}

.tip-content strong {
    color: #F3A21C;
    font-weight: 600;
}

.tip-content a {
    color: #72ACC8;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.tip-content a:hover {
    color: #F3A21C;
    text-decoration: underline;
}

/* Useful Links */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.link-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    border: 1px solid #ddd;
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.link-card h3 {
    margin: 0 0 10px 0;
    color: #F3A21C;
    font-size: 1.2em;
}

.link-card p {
    margin: 0;
    color: #666;
    font-size: 0.9em;
}

@media (max-width: 900px) {
    .calendar {
        grid-template-columns: 1fr;
    }

    .deliverables {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .deliverable-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .deadline {
        align-self: flex-start;
    }

    .links-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .day-card {
        padding: 15px;
    }

    .deliverable-card {
        padding: 20px;
    }

    .event {
        padding: 8px 12px;
        margin: 5px 0;
    }

    .time {
        font-size: 0.8em;
    }

    .title {
        font-size: 0.9em;
    }

    h2 {
        font-size: 1.5em;
    }

    .hero-actions {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .hero-card {
        padding: 24px 20px;
        min-height: auto;
    }

    .hero-title {
        font-size: 1.2rem;
    }
}