/* ========================================
   宽屏极简风格 - 所有内容完全展开
   特点：1400px宽屏 + 固定导航 + 大量留白
   ======================================== */

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #fafafa;
    color: #2c3e50;
    line-height: 1.8;
    font-size: 16px;
    padding-top: 70px; /* 为固定导航留出空间 */
}

/* ========================================
   固定顶部导航
   ======================================== */
.top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 1px solid #e0e0e0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3em;
    font-weight: 600;
    color: #1a1a1a;
}

.brand-icon {
    font-size: 1.4em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-link {
    display: block;
    padding: 10px 20px;
    color: #666;
    text-decoration: none;
    font-size: 0.95em;
    transition: all 0.3s ease;
    border-radius: 6px;
}

.nav-link:hover {
    color: #2c3e50;
    background: #f5f5f5;
}

.nav-link.active {
    color: #2c3e50;
    font-weight: 500;
}

.nav-link-premium {
    background: #2c3e50;
    color: white !important;
}

.nav-link-premium:hover {
    background: #1a252f;
}

/* ========================================
   主容器
   ======================================== */
.main-wrapper {
    min-height: 100vh;
}

.section {
    padding: 80px 0;
}

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 区域标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5em;
    font-weight: 300;
    color: #1a1a1a;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: #2c3e50;
    margin: 0 auto;
}

/* ========================================
   分析区域
   ======================================== */
.section-analysis {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
}

.analysis-hero {
    text-align: center;
    margin-bottom: 50px;
}

.hero-title {
    font-size: 3em;
    font-weight: 300;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.2em;
    opacity: 0.95;
    font-weight: 300;
}

.analysis-box {
    max-width: 700px;
    margin: 0 auto 60px;
    background: rgba(255, 255, 255, 0.95);
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.input-group {
    margin-bottom: 30px;
}

.input-label {
    display: block;
    color: #2c3e50;
    font-size: 0.95em;
    margin-bottom: 12px;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
}

.phone-input {
    width: 100%;
    padding: 18px 80px 18px 20px;
    font-size: 1.1em;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    outline: none;
    transition: all 0.3s ease;
    color: #2c3e50;
}

.phone-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-count {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 0.9em;
}

.analysis-button {
    width: 100%;
    padding: 18px;
    font-size: 1.1em;
    font-weight: 500;
    color: white;
    background: #2c3e50;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.analysis-button:hover {
    background: #1a252f;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.3);
}

.analysis-button:active {
    transform: translateY(0);
}

.features-row {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.feature-item {
    text-align: center;
}

.feature-icon {
    font-size: 2.5em;
    margin-bottom: 10px;
}

.feature-text {
    font-size: 0.95em;
    opacity: 0.95;
}

/* ========================================
   靓号广告区域
   ======================================== */
.section-premium {
    background: #f8f9fa;
    padding: 60px 0;
}

.premium-card {
    background: white;
    border-radius: 12px;
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    border: 1px solid #e0e0e0;
}

.premium-content {
    flex: 1;
}

.premium-badge {
    display: inline-block;
    padding: 6px 16px;
    background: #fff3cd;
    color: #856404;
    border-radius: 20px;
    font-size: 0.85em;
    font-weight: 500;
    margin-bottom: 20px;
}

.premium-title {
    font-size: 2em;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.premium-desc {
    font-size: 1.05em;
    color: #666;
    margin-bottom: 30px;
}

.premium-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: #2c3e50;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.premium-button:hover {
    background: #1a252f;
    transform: translateX(5px);
}

.button-arrow {
    font-size: 1.2em;
    transition: transform 0.3s ease;
}

.premium-button:hover .button-arrow {
    transform: translateX(5px);
}

.premium-visual {
    flex-shrink: 0;
}

.visual-icon {
    font-size: 8em;
    opacity: 0.9;
}

/* ========================================
   内容模块通用样式
   ======================================== */
.section-about {
    background: white;
}

.section-principles {
    background: #f8f9fa;
}

.section-disclaimer {
    background: white;
}

.content-block {
    margin-bottom: 60px;
}

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

.block-title {
    font-size: 1.8em;
    font-weight: 400;
    color: #1a1a1a;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.block-text {
    font-size: 1.05em;
    line-height: 2;
    color: #555;
    margin-bottom: 20px;
}

.block-text strong {
    color: #2c3e50;
    font-weight: 600;
}

/* 价值观网格 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.value-card {
    text-align: center;
    padding: 40px 30px;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
}

.value-card:hover {
    border-color: #2c3e50;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-5px);
}

.value-icon {
    font-size: 3em;
    margin-bottom: 20px;
}

.value-title {
    font-size: 1.2em;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 12px;
}

.value-desc {
    font-size: 0.95em;
    color: #666;
    line-height: 1.6;
}

/* 特性列表 */
.feature-list {
    list-style: none;
}

.feature-list-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    padding: 20px;
    background: #fafafa;
    border-radius: 8px;
    border-left: 3px solid #2c3e50;
}

.list-icon {
    color: #2c3e50;
    font-size: 1.2em;
    flex-shrink: 0;
}

.list-content {
    flex: 1;
    color: #555;
    line-height: 1.8;
}

.list-content strong {
    color: #2c3e50;
}

/* 流程网格 */
.flow-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.flow-card {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.flow-card:hover {
    border-color: #2c3e50;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    transform: translateY(-5px);
}

.flow-number {
    font-size: 2.5em;
    font-weight: 200;
    color: #2c3e50;
    margin-bottom: 20px;
}

.flow-title {
    font-size: 1.2em;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.flow-desc {
    font-size: 0.95em;
    color: #666;
    line-height: 1.6;
}

/* 评分维度 */
.dimensions-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.dimension-row {
    padding: 30px;
    background: white;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.dimension-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.dimension-name {
    font-size: 1.15em;
    font-weight: 500;
    color: #1a1a1a;
}

.dimension-weight {
    padding: 4px 14px;
    background: #2c3e50;
    color: white;
    border-radius: 20px;
    font-size: 0.9em;
    font-weight: 500;
}

.dimension-bar {
    height: 8px;
    background: #f0f0f0;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 12px;
}

.dimension-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    transition: width 0.8s ease;
}

.dimension-desc {
    font-size: 0.95em;
    color: #666;
}

/* 算法部分 */
.algorithm-section {
    margin-bottom: 35px;
}

.algorithm-subtitle {
    font-size: 1.3em;
    font-weight: 500;
    color: #1a1a1a;
    margin-bottom: 15px;
}

.algorithm-text {
    font-size: 1.05em;
    color: #555;
    line-height: 1.8;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.rule-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #fafafa;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
}

.rule-label {
    font-size: 1.05em;
    color: #555;
}

.rule-value {
    font-size: 1.15em;
    font-weight: 600;
    color: #2c3e50;
}

.bonus-list {
    list-style: none;
    padding: 0;
}

.bonus-list li {
    padding: 15px 20px;
    background: #fafafa;
    border-radius: 8px;
    margin-bottom: 12px;
    color: #555;
    font-size: 1.05em;
}

.bonus-list li strong {
    color: #2c3e50;
    font-weight: 600;
}

.formula-box {
    padding: 25px;
    background: #2c3e50;
    color: white;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 1.1em;
    font-weight: 500;
    text-align: center;
    letter-spacing: 0.5px;
}

.note-block {
    display: flex;
    gap: 20px;
    padding: 25px;
    background: #fff9e6;
    border-radius: 8px;
    border-left: 4px solid #ffc107;
    margin-top: 30px;
}

.note-icon {
    font-size: 2em;
    flex-shrink: 0;
}

.note-content {
    flex: 1;
    color: #856404;
    line-height: 1.8;
}

.note-content strong {
    font-weight: 600;
}

/* 警告卡片 */
.warning-card {
    display: flex;
    gap: 25px;
    padding: 30px;
    background: #fff5f5;
    border-radius: 8px;
    border-left: 4px solid #dc3545;
    margin-bottom: 25px;
}

.warning-icon {
    font-size: 2.5em;
    flex-shrink: 0;
}

.warning-content {
    flex: 1;
}

.warning-title {
    font-size: 1.3em;
    font-weight: 500;
    color: #721c24;
    margin-bottom: 12px;
}

.warning-text {
    color: #721c24;
    line-height: 1.8;
}

/* 接受条款卡片 */
.accept-card {
    display: flex;
    gap: 25px;
    padding: 30px;
    background: #d4edda;
    border-radius: 8px;
    border-left: 4px solid #28a745;
}

.accept-icon {
    width: 50px;
    height: 50px;
    background: #28a745;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    font-weight: 700;
    flex-shrink: 0;
}

.accept-content {
    flex: 1;
}

.accept-title {
    font-size: 1.3em;
    font-weight: 500;
    color: #155724;
    margin-bottom: 12px;
}

.accept-text {
    color: #155724;
    line-height: 1.8;
}

/* ========================================
   页脚
   ======================================== */
.site-footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0;
    text-align: center;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.footer-text {
    font-size: 1em;
    margin-bottom: 10px;
    opacity: 0.9;
}

.footer-note {
    font-size: 0.9em;
    opacity: 0.7;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .section-container {
        padding: 0 30px;
    }

    .nav-container {
        padding: 0 30px;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .flow-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
        padding-top: 60px;
    }

    .nav-container {
        height: 60px;
        padding: 0 20px;
    }

    .nav-brand {
        font-size: 1.1em;
    }

    .nav-menu {
        gap: 0;
    }

    .nav-link {
        padding: 8px 12px;
        font-size: 0.85em;
    }

    .section {
        padding: 50px 0;
    }

    .section-container {
        padding: 0 20px;
    }

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

    .section-title {
        font-size: 2em;
    }

    .section-analysis {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 2em;
    }

    .hero-subtitle {
        font-size: 1em;
    }

    .analysis-box {
        padding: 30px 25px;
    }

    .phone-input {
        padding: 16px 70px 16px 15px;
        font-size: 1em;
    }

    .features-row {
        gap: 30px;
    }

    .feature-icon {
        font-size: 2em;
    }

    .premium-card {
        flex-direction: column;
        padding: 40px 30px;
        text-align: center;
    }

    .visual-icon {
        font-size: 5em;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .flow-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

    .content-block {
        margin-bottom: 40px;
    }

    .block-title {
        font-size: 1.5em;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }

    .nav-brand {
        font-size: 1em;
    }

    .brand-text {
        display: none;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .nav-link {
        padding: 6px 10px;
        font-size: 0.8em;
    }

    .section-container {
        padding: 0 15px;
    }

    .section-title {
        font-size: 1.6em;
    }

    .hero-title {
        font-size: 1.6em;
    }

    .analysis-box {
        padding: 25px 20px;
    }

    .premium-card {
        padding: 30px 20px;
    }

    .premium-title {
        font-size: 1.5em;
    }

    .visual-icon {
        font-size: 4em;
    }

    .warning-card,
    .accept-card,
    .note-block {
        flex-direction: column;
        text-align: center;
    }

    .accept-icon {
        margin: 0 auto;
    }
}