/* ===== 灯塔笔记 - 产品介绍页样式 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: #3d3228;
    background: #fef9f5;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #f0e8e0;
    padding: 0 40px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar .logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar .logo img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(255, 122, 60, 0.3);
}

.navbar .logo span {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #ff7a3c, #ff9a56);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar .nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.navbar .nav-links a {
    font-size: 15px;
    color: #6b5d4f;
    transition: color 0.2s;
}

.navbar .nav-links a:hover {
    color: #ff7a3c;
}

.navbar .download-btn {
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    padding: 10px 24px;
    border-radius: 22px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(255, 122, 60, 0.35);
    transition: transform 0.2s, box-shadow 0.2s;
}

.navbar .download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 122, 60, 0.45);
}

/* ===== Hero区域 ===== */
.hero {
    padding: 140px 40px 80px;
    background: linear-gradient(180deg, #fff5eb 0%, #fef9f5 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 154, 86, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 122, 60, 0.1);
    color: #ff7a3c;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #3d3228;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #ff7a3c, #ff9a56);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 18px;
    color: #8b7d6b;
    margin-bottom: 36px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn-primary {
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    padding: 16px 36px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 6px 24px rgba(255, 122, 60, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(255, 122, 60, 0.5);
}

.btn-secondary {
    background: #fff;
    color: #ff7a3c;
    padding: 16px 36px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    border: 2px solid #ffd4b8;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    border-color: #ff7a3c;
    background: #fff5eb;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 28px;
    font-weight: 800;
    color: #ff7a3c;
}

.stat-label {
    font-size: 13px;
    color: #b0a090;
    margin-top: 4px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: #fff;
    border-radius: 40px;
    box-shadow: 0 20px 60px rgba(255, 122, 60, 0.2);
    padding: 12px;
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 6px;
    background: #f0e8e0;
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #fff5eb 0%, #fef9f5 100%);
    border-radius: 30px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-header {
    padding: 40px 20px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.phone-header img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.phone-header span {
    font-size: 16px;
    font-weight: 700;
    color: #3d3228;
}

.phone-search {
    margin: 0 16px 16px;
    height: 36px;
    background: #fff;
    border-radius: 18px;
    display: flex;
    align-items: center;
    padding: 0 16px;
    font-size: 12px;
    color: #b0a090;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.phone-section {
    padding: 0 16px 12px;
    font-size: 14px;
    font-weight: 700;
    color: #3d3228;
    display: flex;
    align-items: center;
    gap: 6px;
}

.phone-section::before {
    content: '';
    width: 4px;
    height: 16px;
    background: linear-gradient(180deg, #ff9a56, #ff7a3c);
    border-radius: 2px;
}

.phone-categories {
    display: flex;
    justify-content: space-around;
    padding: 0 12px 16px;
}

.phone-cat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.phone-cat-icon {
    width: 44px;
    height: 44px;
    background: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 2px 8px rgba(255, 122, 60, 0.1);
}

.phone-cat-icon.add {
    background: linear-gradient(135deg, #fff5eb, #ffe8d6);
    border: 1px dashed #ffb088;
    color: #ff7a3c;
}

.phone-cat span {
    font-size: 10px;
    color: #6b5d4f;
}

.phone-note {
    margin: 0 16px 12px;
    background: #fff;
    border-radius: 12px;
    padding: 14px;
    box-shadow: 0 2px 8px rgba(255, 122, 60, 0.08);
}

.phone-note-title {
    font-size: 13px;
    font-weight: 700;
    color: #3d3228;
    margin-bottom: 6px;
}

.phone-note-content {
    font-size: 11px;
    color: #8b7d6b;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.phone-note-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
    font-size: 10px;
    color: #b0a090;
}

/* ===== 功能特点 ===== */
.features {
    padding: 80px 40px;
    background: #fff;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: rgba(255, 122, 60, 0.1);
    color: #ff7a3c;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    color: #3d3228;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: #8b7d6b;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: #fef9f5;
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #f5f0eb;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(255, 122, 60, 0.15);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #fff5eb, #ffe8d6);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #3d3228;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: #8b7d6b;
    line-height: 1.7;
}

/* ===== 应用截图 ===== */
.screenshots {
    padding: 80px 40px;
    background: linear-gradient(180deg, #fef9f5 0%, #fff5eb 100%);
}

.screenshots-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.screenshot-card {
    width: 240px;
    background: #fff;
    border-radius: 24px;
    padding: 16px;
    box-shadow: 0 12px 40px rgba(255, 122, 60, 0.12);
    transition: transform 0.3s;
}

.screenshot-card:hover {
    transform: translateY(-8px) scale(1.02);
}

.screenshot-label {
    text-align: center;
    padding: 12px 0 4px;
    font-size: 14px;
    font-weight: 600;
    color: #6b5d4f;
}

.screenshot-desc {
    text-align: center;
    font-size: 12px;
    color: #b0a090;
    padding-bottom: 8px;
}

/* ===== 下载区域 ===== */
.download-section {
    padding: 80px 40px;
    background: #fff;
    text-align: center;
}

.download-card {
    max-width: 600px;
    margin: 0 auto;
    background: linear-gradient(135deg, #fff5eb 0%, #ffe8d6 100%);
    border-radius: 32px;
    padding: 60px 40px;
    position: relative;
    overflow: hidden;
}

.download-card::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 154, 86, 0.2) 0%, transparent 70%);
    border-radius: 50%;
}

.download-card img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    margin-bottom: 24px;
    box-shadow: 0 8px 24px rgba(255, 122, 60, 0.3);
    position: relative;
    z-index: 1;
}

.download-card h2 {
    font-size: 32px;
    font-weight: 800;
    color: #3d3228;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.download-card p {
    font-size: 16px;
    color: #8b7d6b;
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
}

.download-btn-large {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    padding: 20px 48px;
    border-radius: 36px;
    font-size: 18px;
    font-weight: 700;
    box-shadow: 0 8px 32px rgba(255, 122, 60, 0.45);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
    z-index: 1;
}

.download-btn-large:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 122, 60, 0.55);
}

.download-info {
    margin-top: 24px;
    font-size: 13px;
    color: #b0a090;
    position: relative;
    z-index: 1;
}

/* ===== 页脚 ===== */
.footer {
    background: #3d3228;
    color: #b0a090;
    padding: 40px;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.footer p {
    font-size: 14px;
    margin-bottom: 8px;
}

.footer .copyright {
    font-size: 12px;
    color: #8b7d6b;
    margin-top: 16px;
}

/* ===== 响应式 ===== */
@media (max-width: 968px) {
    .navbar {
        padding: 0 20px;
    }
    .navbar .nav-links {
        display: none;
    }
    .hero {
        padding: 100px 20px 60px;
    }
    .hero-container {
        flex-direction: column;
        text-align: center;
    }
    .hero h1 {
        font-size: 36px;
    }
    .hero-buttons {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .features, .screenshots, .download-section {
        padding: 60px 20px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 28px;
    }
    .hero p {
        font-size: 15px;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
    .section-header h2 {
        font-size: 28px;
    }
    .download-card {
        padding: 40px 24px;
    }
    .download-btn-large {
        padding: 16px 36px;
        font-size: 16px;
    }
}

/* ===== 多端支持 ===== */
.platforms {
    padding: 80px 24px;
    background: #fff;
}

.platforms-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.platform-card {
    background: #fef9f5;
    border-radius: 20px;
    padding: 36px 28px;
    border: 2px solid #f5f0eb;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.platform-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px rgba(255, 122, 60, 0.15);
}

.platform-card.featured {
    background: linear-gradient(135deg, #fff5eb 0%, #fff 100%);
    border-color: #ff7a3c;
}

.platform-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
}

.platform-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #fff5eb, #ffe8d6);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 20px;
}

.platform-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: #3d3228;
    margin-bottom: 12px;
}

.platform-desc {
    font-size: 14px;
    color: #6b5d4f;
    line-height: 1.7;
    margin-bottom: 20px;
}

.platform-features {
    list-style: none;
    margin-bottom: 20px;
}

.platform-features li {
    font-size: 13px;
    color: #6b5d4f;
    padding: 6px 0;
    line-height: 1.5;
}

.platform-size {
    font-size: 12px;
    color: #8b7d6b;
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid #f0e8e0;
}

/* ===== 下载网格 ===== */
.download-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.download-card-item {
    background: #fff;
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 2px solid transparent;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
}

.download-card-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(255, 122, 60, 0.15);
}

.download-card-item.featured {
    border-color: #ff7a3c;
    background: linear-gradient(135deg, #fff5eb 0%, #fff 100%);
}

.download-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
}

.download-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.download-card-item h3 {
    font-size: 20px;
    font-weight: 700;
    color: #3d3228;
    margin-bottom: 10px;
}

.download-card-item p {
    font-size: 13px;
    color: #6b5d4f;
    line-height: 1.6;
    margin-bottom: 24px;
}

.download-btn-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    background: linear-gradient(135deg, #ff9a56, #ff7a3c);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    padding: 14px 24px;
    border-radius: 50px;
    text-decoration: none;
    box-shadow: 0 4px 16px rgba(255, 122, 60, 0.3);
    transition: all 0.3s;
    margin-bottom: 14px;
}

.download-btn-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 122, 60, 0.4);
}

.download-btn-large.outline {
    background: #fff;
    color: #ff7a3c;
    border: 2px solid #ff9a56;
    box-shadow: none;
}

.download-btn-large.outline:hover {
    background: #fff5eb;
}

.download-meta {
    font-size: 12px;
    color: #8b7d6b;
}

.web-entry {
    text-align: center;
    margin-top: 32px;
    font-size: 14px;
    color: #6b5d4f;
}

.web-entry a {
    color: #ff7a3c;
    text-decoration: none;
    font-weight: 600;
}

.web-entry a:hover {
    text-decoration: underline;
}

/* ===== 多端响应式 ===== */
@media (max-width: 968px) {
    .platforms-grid,
    .download-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }
    .platforms,
    .download-section {
        padding: 60px 20px;
    }
}

@media (max-width: 576px) {
    .platform-card,
    .download-card-item {
        padding: 28px 20px;
    }
    .platform-card h3,
    .download-card-item h3 {
        font-size: 18px;
    }
}