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

:root {
    --orange: #FF6B35;
    --orange-light: #FF8F5E;
    --orange-dark: #E85A24;
    --blue: #4A6CF7;
    --blue-light: #6B8CFF;
    --purple: #7C5CFC;
    --dark: #1A1A2E;
    --text: #333;
    --text-light: #666;
    --bg: #F5F7FA;
    --white: #fff;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ====== Hero ====== */
.hero {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F5E 40%, #FFB347 100%);
    color: white;
    padding: 60px 24px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 1px, transparent 1px);
    background-size: 30px 30px;
    animation: heroPattern 20s linear infinite;
}

@keyframes heroPattern {
    from { transform: translate(0, 0); }
    to { transform: translate(30px, 30px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.hero .subtitle {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 28px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.hero-stat {
    text-align: center;
}

.hero-stat .num {
    font-size: 36px;
    font-weight: 800;
}

.hero-stat .label {
    font-size: 13px;
    opacity: 0.85;
    margin-top: 2px;
}

/* ====== Sections ====== */
.section {
    max-width: 800px;
    margin: 0 auto;
    padding: 48px 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 36px;
}

.section-header h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.section-header p {
    color: var(--text-light);
    font-size: 15px;
}

/* ====== Info Cards ====== */
.info-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.info-card {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: transform 0.3s;
}

.info-card:hover {
    transform: translateY(-2px);
}

.info-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    flex-shrink: 0;
}

.info-icon.orange { background: #FFF0E8; }
.info-icon.blue { background: #EEF2FF; }
.info-icon.purple { background: #F3EEFF; }
.info-icon.green { background: #E8F9EF; }

.info-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.info-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ====== Timeline ====== */
.period-section {
    background: var(--white);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.period-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 10px;
    margin-bottom: 10px;
}

.period-badge.orange { background: #FFF0E8; color: var(--orange); }
.period-badge.blue { background: #EEF2FF; color: var(--blue); }

.period-section h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.period-info {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.7;
}

/* ====== Registration Input ====== */
.reg-input-row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 12px;
}

.reg-input {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.reg-input:focus {
    border-color: var(--orange);
}

.reg-input::placeholder {
    color: #bbb;
}

.reg-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 700;
    color: white;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.2s, opacity 0.2s;
}

.reg-btn:hover { transform: scale(1.03); }
.reg-btn:active { transform: scale(0.97); }
.reg-btn.orange { background: var(--orange); }
.reg-btn.blue { background: var(--blue); }

/* ====== Exam Info ====== */
.exam-card {
    background: linear-gradient(135deg, var(--dark) 0%, #2D2D5E 100%);
    color: white;
    border-radius: 20px;
    padding: 32px 28px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.exam-card::after {
    content: '';
    position: absolute;
    top: -40%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255,107,53,0.15), transparent);
    border-radius: 50%;
}

.exam-card h3 {
    font-size: 15px;
    opacity: 0.7;
    margin-bottom: 8px;
    letter-spacing: 2px;
    position: relative;
    z-index: 2;
}

.exam-date {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 6px;
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, #FF6B35, #FFB347);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.exam-note {
    font-size: 14px;
    opacity: 0.6;
    position: relative;
    z-index: 2;
}

/* ====== Value Cards ====== */
.value-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.value-card {
    background: var(--white);
    border-radius: 16px;
    padding: 22px 18px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

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

.value-emoji {
    font-size: 36px;
    margin-bottom: 10px;
}

.value-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.value-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

/* ====== Highlights ====== */
.highlight-strip {
    background: linear-gradient(135deg, #FFF8E1, #FFF3E0);
    border-radius: 16px;
    padding: 20px 24px;
    border-left: 5px solid #FFB347;
    margin: 20px 0;
}

.highlight-strip p {
    font-size: 14px;
    color: #8B6914;
    line-height: 1.7;
}

.highlight-strip strong {
    color: #E85A24;
}

/* ====== Fee Section ====== */
.fee-table {
    width: 100%;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.fee-row {
    display: flex;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.fee-row:last-child {
    border-bottom: none;
}

.fee-label {
    flex: 1;
    font-size: 15px;
    color: var(--text);
}

.fee-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--orange);
}

/* ====== FAQ ====== */
.faq-item {
    background: var(--white);
    border-radius: 14px;
    margin-bottom: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
    overflow: hidden;
}

.faq-q {
    padding: 18px 24px;
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: background 0.2s;
}

.faq-q:hover {
    background: #f8f9fa;
}

.faq-q .arrow {
    font-size: 12px;
    color: #999;
    transition: transform 0.3s;
}

.faq-item.open .faq-q .arrow {
    transform: rotate(180deg);
}

.faq-a {
    display: none;
    padding: 0 24px 18px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

.faq-item.open .faq-a {
    display: block;
}

/* ====== CTA ====== */
.cta-section {
    text-align: center;
    padding: 48px 20px 24px;
    max-width: 800px;
    margin: 0 auto;
}

.cta-box {
    background: linear-gradient(135deg, #FF6B35, #FF8F5E, #FFB347);
    border-radius: 20px;
    padding: 40px 28px;
    color: white;
    box-shadow: 0 8px 32px rgba(255,107,53,0.3);
}

.cta-box h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-box p {
    font-size: 15px;
    opacity: 0.95;
    margin-bottom: 24px;
    line-height: 1.7;
}

.cta-btn {
    display: inline-block;
    background: white;
    color: var(--orange);
    padding: 14px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

/* ====== Countdown ====== */
.countdown-section {
    background: var(--dark);
    color: white;
    padding: 36px 20px;
    text-align: center;
}

.countdown-title {
    font-size: 14px;
    opacity: 0.6;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.countdown-boxes {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.countdown-box {
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 16px 20px;
    min-width: 72px;
}

.countdown-box .num {
    font-size: 32px;
    font-weight: 800;
    color: var(--orange-light);
}

.countdown-box .unit {
    font-size: 12px;
    opacity: 0.5;
    margin-top: 2px;
}

/* ====== Footer ====== */
.footer {
    text-align: center;
    padding: 32px 20px;
    color: #aaa;
    font-size: 13px;
}

/* ====== Modal ====== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: white;
    border-radius: 20px;
    padding: 32px;
    width: 90%;
    max-width: 380px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.modal h3 {
    font-size: 20px;
    margin-bottom: 6px;
    color: var(--dark);
}

.modal .modal-period {
    font-size: 14px;
    color: var(--orange);
    font-weight: 600;
    margin-bottom: 20px;
}

.modal-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s;
    box-sizing: border-box;
    text-align: center;
}

.modal-input:focus {
    border-color: var(--orange);
}

.modal-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 12px;
    font-size: 16px;
    outline: none;
    background: white;
    color: #999;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    cursor: pointer;
    box-sizing: border-box;
}

.modal-select:focus {
    border-color: var(--orange);
}

.modal-select.has-value {
    color: #333;
}

.modal-submit {
    width: 100%;
    padding: 14px;
    background: var(--orange);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 14px;
    transition: background 0.2s;
}

.modal-submit:hover { background: var(--orange-dark); }
.modal-submit:disabled { background: #ccc; cursor: default; }

.modal-cancel {
    background: none;
    border: none;
    color: #999;
    font-size: 14px;
    margin-top: 12px;
    cursor: pointer;
}

.modal-cancel:hover { color: #666; }

/* ====== Toast ====== */
.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.85);
    background: rgba(0,0,0,0.82);
    color: #fff;
    padding: 28px 36px;
    border-radius: 18px;
    font-size: 15px;
    line-height: 1.8;
    text-align: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    max-width: 340px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.25);
    pointer-events: none;
    white-space: pre-line;
}

.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ====== Animations ====== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ====== Mobile ====== */
@media (max-width: 640px) {
    .hero { padding: 48px 20px 64px; }
    .hero h1 { font-size: 26px; }
    .hero .subtitle { font-size: 15px; }
    .hero-stats { gap: 20px; }
    .hero-stat .num { font-size: 28px; }
    .section { padding: 36px 16px; }
    .section-header h2 { font-size: 22px; }
    .value-grid { grid-template-columns: 1fr; }
    .exam-date { font-size: 30px; }
    .countdown-boxes { gap: 8px; }
    .countdown-box { padding: 12px 16px; min-width: 60px; }
    .countdown-box .num { font-size: 26px; }
}