/* ===== 全局重置与基础样式 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text: #1a1a2e;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --primary: #2563eb;
    --primary-light: #dbeafe;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --success-light: #dcfce7;
    --danger: #dc2626;
    --danger-light: #fee2e2;
    --warning: #ea580c;
    --warning-light: #fff7ed;
    --yellow: #ca8a04;
    --yellow-light: #fefce8;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.05);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: 0.2s ease;
}

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

/* ===== 首页样式 ===== */
.home-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.home-container {
    width: 100%;
    max-width: 960px;
    padding: 40px 24px;
}

.home-header {
    text-align: center;
    margin-bottom: 48px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 36px;
    line-height: 1;
}

.logo-text {
    font-size: 24px;
    color: var(--text);
    letter-spacing: -0.5px;
}

.logo-text strong {
    color: var(--primary);
    font-weight: 700;
}

/* Hero */
.hero-section {
    text-align: center;
    margin-bottom: 64px;
}

.hero-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -1px;
    margin-bottom: 12px;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
}

/* 搜索表单 */
.scan-form {
    max-width: 640px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 4px 4px 4px 16px;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.input-group:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-prefix {
    font-size: 20px;
    margin-right: 8px;
    flex-shrink: 0;
}

.domain-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
    padding: 12px 0;
    background: transparent;
    color: var(--text);
    min-width: 0;
}

.domain-input::placeholder {
    color: var(--text-muted);
}

.btn-scan {
    flex-shrink: 0;
    padding: 12px 28px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-xl);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-scan:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-scan:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-loading {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.input-hint {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 8px;
    text-align: left;
    padding-left: 16px;
}

.input-error {
    font-size: 13px;
    color: var(--danger);
    margin-top: 8px;
    text-align: left;
    padding-left: 16px;
}

/* 功能特性 */
.features-section {
    margin-top: 16px;
}

.features-title {
    text-align: center;
    font-size: 22px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 32px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    transition: all var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}

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

/* 页脚 */
.home-footer {
    text-align: center;
    margin-top: 64px;
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== 报告页样式 ===== */
.report-page {
    background: var(--bg-secondary);
    padding-bottom: 80px;
}

.report-container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 报告头部 */
.report-header {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-top: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.report-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.report-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
}

.report-meta {
    font-size: 13px;
    color: var(--text-secondary);
}

.report-title-section h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.report-domain {
    font-size: 20px;
    color: var(--primary);
    font-weight: 600;
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    background: var(--primary-light);
    display: inline-block;
    padding: 4px 16px;
    border-radius: 6px;
}

/* 评分概览 */
.score-overview {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.score-main {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 28px;
}

.score-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    position: relative;
    background: conic-gradient(
        var(--color) calc(var(--score) * 3.6deg),
        #f3f4f6 calc(var(--score) * 3.6deg)
    );
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.score-circle-inner {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.score-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--text);
    line-height: 1;
}

.score-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.score-grade {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.grade-badge {
    display: inline-block;
    color: #fff;
    font-size: 28px;
    font-weight: 800;
    padding: 4px 20px;
    border-radius: 8px;
    width: fit-content;
}

.grade-text {
    font-size: 15px;
    color: var(--text-secondary);
}

/* 分数细分 */
.score-breakdown {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px 24px;
}

.breakdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.breakdown-label {
    font-size: 13px;
    color: var(--text-secondary);
    width: 56px;
    flex-shrink: 0;
}

.breakdown-bar-wrap {
    flex: 1;
    height: 6px;
    background: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
}

.breakdown-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.8s ease;
}

.breakdown-value {
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    width: 40px;
    text-align: right;
    flex-shrink: 0;
}

/* 通用区块 */
.section {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-light);
}

.section-icon {
    font-size: 20px;
}

/* 风险摘要 */
.risk-stats {
    display: flex;
    gap: 24px;
}

.risk-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.risk-stat-count {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
}

.risk-stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 信息网格 */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.dns-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.info-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    padding: 14px 16px;
}

.info-card-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.info-card-value {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    word-break: break-all;
}

/* 徽章 */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
}

.badge-ok {
    background: var(--success-light);
    color: var(--success);
}

.badge-bad {
    background: var(--danger-light);
    color: var(--danger);
}

.badge-closed {
    background: var(--border-light);
    color: var(--text-muted);
}

/* 数据表格 */
.record-table-wrap {
    overflow-x: auto;
    margin-top: 8px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th {
    background: var(--bg-secondary);
    padding: 10px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 9px 12px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text);
}

.record-type {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: "SF Mono", "Consolas", monospace;
}

.record-value {
    font-family: "SF Mono", "Consolas", monospace;
    font-size: 12px;
    word-break: break-all;
}

/* 安全头 */
.header-check-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.header-check-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.header-check-item.present {
    border-left: 3px solid var(--success);
}

.header-check-item.missing {
    border-left: 3px solid var(--danger);
    background: #fefafa;
}

.header-check-status {
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.header-check-item.present .header-check-status { color: var(--success); }
.header-check-item.missing .header-check-status { color: var(--danger); }

.header-check-info {
    flex: 1;
}

.header-check-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.header-check-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.header-check-value {
    margin-top: 6px;
}

.header-check-value code {
    font-size: 11px;
    background: var(--bg-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--text-secondary);
    word-break: break-all;
}

.header-check-weight {
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    padding-top: 2px;
}

/* 端口 */
.ports-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
}

.port-item {
    padding: 12px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    text-align: center;
}

.port-open {
    background: #f0fdf4;
    border-color: #bbf7d0;
}

.port-dangerous {
    background: #fef2f2;
    border-color: #fecaca;
}

.port-closed {
    background: var(--bg-secondary);
}

.port-number {
    font-size: 16px;
    font-weight: 700;
    font-family: "SF Mono", "Consolas", monospace;
}

.port-service {
    font-size: 11px;
    color: var(--text-secondary);
    margin: 2px 0 6px;
}

/* 技术栈 */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.tech-category {
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

.tech-cat-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tech-tag {
    font-size: 12px;
    background: var(--primary-light);
    color: var(--primary);
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 500;
}

/* Cookie */
.cookie-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.cookie-item {
    padding: 14px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    background: var(--bg-secondary);
}

.cookie-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
    font-family: "SF Mono", "Consolas", monospace;
    margin-bottom: 8px;
}

.cookie-attrs {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cookie-attr {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.attr-ok {
    background: var(--success-light);
    color: var(--success);
}

.attr-bad {
    background: var(--danger-light);
    color: var(--danger);
}

.cookie-issues {
    margin-top: 8px;
}

/* 邮件 */
.email-check-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.email-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.email-item.present {
    border-left: 3px solid var(--success);
}

.email-item.missing {
    border-left: 3px solid var(--danger);
    background: #fefafa;
}

.email-item-status {
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

.email-item.present .email-item-status { color: var(--success); }
.email-item.missing .email-item-status { color: var(--danger); }

.email-item-info { flex: 1; }

.email-item-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.email-item-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

.email-item-record {
    margin-top: 6px;
}

.email-item-record code {
    font-size: 11px;
    background: var(--bg-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    color: var(--text-secondary);
    word-break: break-all;
}

/* 子域名 */
.subdomain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.subdomain-item {
    padding: 10px 12px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.subdomain-host {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    font-family: "SF Mono", "Consolas", monospace;
    word-break: break-all;
}

.subdomain-ip {
    font-size: 11px;
    color: var(--text-secondary);
    margin: 2px 0 4px;
}

.subdomain-services {
    display: flex;
    gap: 4px;
}

/* 问题 */
.issue-item {
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 4px;
    margin-top: 4px;
    line-height: 1.4;
}

.issue-critical {
    background: var(--danger-light);
    color: var(--danger);
    border-left: 3px solid var(--danger);
}

.issue-high {
    background: #fff7ed;
    color: var(--warning);
    border-left: 3px solid var(--warning);
}

.issue-medium {
    background: var(--yellow-light);
    color: var(--yellow);
    border-left: 3px solid var(--yellow);
}

.issue-low {
    background: var(--primary-light);
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

/* 告警 */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    font-size: 14px;
    line-height: 1.5;
}

.alert-critical {
    background: var(--danger-light);
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-info {
    background: var(--primary-light);
    color: var(--primary);
    border: 1px solid #bfdbfe;
}

.alert-ok {
    background: var(--success-light);
    color: var(--success);
    border: 1px solid #bbf7d0;
}

/* 安全建议 */
.rec-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rec-item {
    padding: 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
}

.rec-critical {
    background: #fef2f2;
    border-left: 4px solid var(--danger);
}

.rec-high {
    background: #fff7ed;
    border-left: 4px solid var(--warning);
}

.rec-medium {
    background: #fefce8;
    border-left: 4px solid var(--yellow);
}

.rec-low {
    background: #eff6ff;
    border-left: 4px solid var(--primary);
}

.rec-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.rec-level-badge {
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    padding: 2px 10px;
    border-radius: 20px;
    text-transform: uppercase;
}

.rec-category {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.rec-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.rec-detail {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* SSL状态 */
.ssl-days {
    font-size: 12px;
    font-weight: 600;
    margin-left: 6px;
}

.ssl-ok { color: var(--success); }
.ssl-warning { color: var(--warning); }
.ssl-expired { color: var(--danger); }

/* 序列号 */
.serial-number {
    font-family: "SF Mono", "Consolas", monospace;
    font-size: 12px;
}

.san-list {
    font-size: 12px;
    font-family: "SF Mono", "Consolas", monospace;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 文本 */
.text-muted {
    color: var(--text-muted);
}

/* 报告页脚 */
.report-footer {
    text-align: center;
    padding: 32px 0;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.8;
}

/* 导出按钮栏 */
.export-bar {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    background: var(--bg);
    padding: 8px 16px;
    border-radius: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    z-index: 100;
}

.btn-export, .btn-back {
    padding: 10px 20px;
    border: none;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-export {
    background: var(--primary);
    color: #fff;
}

.btn-export:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-back {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-back:hover {
    background: var(--border-light);
}

/* 扫描等待页 */
.scan-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
}

.scan-status {
    text-align: center;
}

.scan-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 24px;
}

.scan-status h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.scan-status p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 26px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }

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

    .input-group {
        flex-direction: column;
        padding: 12px;
        gap: 8px;
    }

    .domain-input {
        width: 100%;
        text-align: center;
    }

    .btn-scan {
        width: 100%;
    }

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

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

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

    .ports-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .report-header {
        padding: 20px;
    }

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

    .score-main {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .score-breakdown {
        grid-template-columns: 1fr;
    }

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

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