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

:root {
    --primary: #07C160;
    --primary-dark: #06AD56;
    --primary-light: #E8F8EE;
    --secondary: #1AAD19;
    --accent: #576B95;
    --bg-white: #FFFFFF;
    --bg-gray: #F7F7F7;
    --bg-dark: #EDEDED;
    --text-primary: #191919;
    --text-secondary: #888888;
    --text-light: #B2B2B2;
    --border: #E5E5E5;
    --shadow: rgba(0, 0, 0, 0.08);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-gray);
    min-height: 100vh;
    color: var(--text-primary);
}

.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #00A854 100%);
    padding-top: 0;
}

.page-hero {
    background: linear-gradient(135deg, var(--primary) 0%, #00A854 100%);
    padding-top: 0;
}

.nav {
    background: transparent;
    padding: 0 60px;
    height: 68px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: var(--bg-white);
    text-decoration: none;
}

.logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.2s ease;
}

.nav-menu a:hover {
    color: var(--bg-white);
    background: rgba(255, 255, 255, 0.15);
}

.nav-menu a.active {
    color: var(--bg-white);
    background: rgba(255, 255, 255, 0.2);
}

.hero-content {
    padding: 80px 40px;
    text-align: center;
}

.page-hero .hero-content {
    padding: 60px 40px;
    text-align: center;
}

.hero h1,
.page-hero h1 {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--bg-white);
}

.page-hero h1 {
    font-size: 36px;
    margin-bottom: 12px;
}

.hero p,
.page-hero p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9);
    max-width: 560px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.page-hero p {
    font-size: 16px;
    margin-bottom: 0;
}

.platform-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.platform-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: 100px;
    font-size: 14px;
    color: var(--bg-white);
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
}

.platform-badge span {
    font-size: 16px;
}

.main-content {
    max-width: 720px;
    margin: 0 auto;
    padding: 50px 40px;
}

.content-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px 40px;
}

.form-card,
.content-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 24px;
    box-shadow: 0 2px 20px var(--shadow);
}

.form-group {
    margin-bottom: 28px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-gray);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    color: var(--text-primary);
    transition: all 0.2s ease;
    outline: none;
}

.form-input::placeholder {
    color: var(--text-light);
}

.form-input:focus {
    border-color: var(--primary);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.1);
}

.icon-upload-area {
    display: flex;
    gap: 20px;
    align-items: center;
}

.icon-preview-box {
    width: 90px;
    height: 90px;
    background: var(--bg-gray);
    border: 2px dashed var(--border);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    overflow: hidden;
}

.icon-preview-box:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.icon-preview-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.icon-preview-box .upload-icon {
    font-size: 26px;
    margin-bottom: 4px;
}

.icon-preview-box .upload-text {
    font-size: 12px;
    color: var(--text-secondary);
}

.icon-info {
    flex: 1;
}

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

.platform-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.platform-card {
    background: var(--bg-gray);
    border: 2px solid transparent;
    border-radius: 12px;
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.platform-card:hover {
    border-color: var(--border);
}

.platform-card.selected {
    border-color: var(--primary);
    background: var(--primary-light);
}

.platform-card .icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.platform-card .name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.platform-card .desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.generate-btn {
    width: 100%;
    padding: 16px;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.generate-btn:hover {
    background: var(--primary-dark);
}

.generate-btn:active {
    transform: scale(0.98);
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.feature-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    box-shadow: 0 2px 12px var(--shadow);
}

.feature-card .icon {
    width: 52px;
    height: 52px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 14px;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.content-card h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.content-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.content-card p:last-child {
    margin-bottom: 0;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.support-option {
    background: var(--bg-gray);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.2s ease;
    cursor: pointer;
}

.support-option:hover {
    background: var(--primary-light);
}

.support-option .icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.support-option h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.support-option p {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.faq-question .q-icon {
    background: var(--primary-light);
    color: var(--primary);
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-answer {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 34px;
}

.contact-list {
    list-style: none;
    margin-top: 16px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    color: var(--text-secondary);
}

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

.contact-list li .icon {
    font-size: 20px;
}

.steps-list {
    list-style: none;
    counter-reset: step;
    margin-top: 16px;
}

.steps-list li {
    counter-increment: step;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 0;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.steps-list li::before {
    content: counter(step);
    background: var(--primary);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.footer {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 13px;
    border-top: 1px solid var(--border);
    margin-top: 50px;
    background: var(--bg-white);
}

@media (max-width: 768px) {
    .nav {
        padding: 0 20px;
    }

    .hero-content {
        padding: 50px 20px;
    }

    .hero h1 {
        font-size: 28px;
    }

    .main-content,
    .content-section {
        padding: 30px 20px;
    }

    .form-card,
    .content-card {
        padding: 24px;
    }

    .platform-selector {
        grid-template-columns: 1fr;
    }

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

    .support-options {
        grid-template-columns: 1fr;
    }
}