/* ================================================================
   数据泄露查询服务 v3.0 - 首页专属样式表
   设计方向：安全感 · 设计感 · 专业信赖
   全局变量 & 基础重置 请见 shared.css
   ================================================================ */

:root {
    --gradient-hero: linear-gradient(135deg, #6366f1 0%, #3b82f6 40%, #06b6d4 100%);
    --gradient-card: linear-gradient(135deg, rgba(99,102,241,0.06) 0%, rgba(59,130,246,0.03) 100%);
    --transition: 0.2s ease;
    --transition-slow: 0.35s ease;
}

/* --- 导航栏 --- */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10, 14, 23, 0.92);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}
.nav-container {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    height: 60px; display: flex; align-items: center; justify-content: space-between;
}
.nav-brand {
    display: flex; align-items: center; gap: 10px;
    font-size: 17px; font-weight: 700; color: var(--text-primary);
    text-decoration: none;
}
.nav-icon { width: 22px; height: 22px; color: var(--accent); }
.nav-links { display: flex; gap: 6px; }
.nav-link {
    padding: 6px 14px; border-radius: 8px;
    color: var(--text-secondary); font-size: 13px; font-weight: 500;
    transition: all var(--transition);
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }

/* =============================================
   Hero 主视觉区
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    padding: 100px 24px 80px;
    overflow: hidden;
}

/* 几何安全网格背景 */
.hero-bg {
    position: absolute; inset: 0;
    background:
        /* 顶部光晕 */
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(99,102,241,0.12) 0%, transparent 60%),
        /* 右侧光晕 */
        radial-gradient(ellipse 40% 60% at 80% 50%, rgba(6,182,212,0.06) 0%, transparent 50%),
        /* 左侧光晕 */
        radial-gradient(ellipse 40% 60% at 20% 80%, rgba(59,130,246,0.05) 0%, transparent 50%);
    pointer-events: none;
}
.hero-bg::before {
    content: '';
    position: absolute; inset: 0;
    background-image:
        /* 安全网格 */
        linear-gradient(rgba(99,102,241,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99,102,241,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 70%);
}

.hero-content { position: relative; max-width: 680px; width: 100%; text-align: center; z-index: 1; }

.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 7px 18px; margin-bottom: 28px;
    background: rgba(99,102,241,0.08);
    border: 1px solid rgba(99,102,241,0.2);
    border-radius: 24px;
    font-size: 13px; color: #a5b4fc; font-weight: 500;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: 56px; font-weight: 800; line-height: 1.1;
    letter-spacing: -0.025em; margin-bottom: 24px;
    background: var(--gradient-hero);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-subtitle {
    font-size: 16px; color: var(--text-secondary);
    line-height: 1.8; margin-bottom: 44px;
}
.highlight { color: #a5b4fc; font-weight: 600; }

/* --- 信任标识 --- */
.trust-badges {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 12px;
    margin-top: 20px;
}
.trust-badge {
    display: flex; align-items: center; gap: 7px;
    padding: 8px 16px;
    background: rgba(15, 18, 30, 0.6);
    border: 1px solid rgba(99, 102, 241, 0.12);
    border-radius: 20px;
    font-size: 12px; color: var(--text-muted);
    transition: all var(--transition);
}
.trust-badge:hover {
    border-color: rgba(99,102,241,0.3);
    color: var(--text-secondary);
    background: rgba(99,102,241,0.06);
}
.trust-badge svg { flex-shrink: 0; opacity: 0.7; }

/* --- 查询选项卡 --- */
.query-tabs {
    display: flex; gap: 8px; margin-bottom: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius); padding: 5px;
}
.tab-btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 20px; border: none; border-radius: calc(var(--radius) - 4px);
    background: transparent; color: var(--text-secondary);
    font-size: 14px; font-weight: 500; cursor: pointer; transition: all var(--transition);
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active {
    background: var(--bg-card);
    color: #a5b4fc;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* --- 选项卡面板 --- */
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* --- 查询表单 --- */
.query-form { width: 100%; }
.input-group {
    position: relative; display: flex; align-items: center;
    background: var(--bg-input); border: 1px solid rgba(99,102,241,0.15);
    border-radius: var(--radius); overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}
.input-group:focus-within {
    border-color: #6366f1;
    box-shadow: 0 0 0 4px rgba(99,102,241,0.12), 0 0 20px rgba(99,102,241,0.06);
}
.input-icon {
    position: absolute; left: 16px; width: 20px; height: 20px;
    color: var(--text-muted); pointer-events: none; flex-shrink: 0;
}
.query-input {
    flex: 1; padding: 16px 16px 16px 48px;
    background: transparent; border: none;
    color: var(--text-primary); font-size: 15px; outline: none;
}
.query-input::placeholder { color: var(--text-muted); }

.pw-toggle-btn {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); padding: 8px 12px;
    display: flex; align-items: center;
    transition: color var(--transition);
}
.pw-toggle-btn:hover { color: var(--text-secondary); }

.query-btn {
    display: flex; align-items: center; gap: 8px;
    padding: 12px 24px; margin: 4px;
    border: none; border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #6366f1, #3b82f6);
    color: white;
    font-size: 14px; font-weight: 600; cursor: pointer; white-space: nowrap;
    transition: all var(--transition);
    box-shadow: 0 2px 8px rgba(99,102,241,0.3);
}
.query-btn:hover {
    background: linear-gradient(135deg, #4f46e5, #2563eb);
    box-shadow: 0 4px 16px rgba(99,102,241,0.4);
    transform: translateY(-1px);
}
.query-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.input-hint-row {
    display: flex; flex-wrap: wrap; gap: 16px;
    margin-top: 10px;
}
.input-hint {
    display: flex; align-items: center; gap: 5px;
    font-size: 12px; color: var(--text-muted);
}
.input-hint svg { flex-shrink: 0; }
.privacy-strong { color: var(--success); }

/* --- 加载动画 --- */
.loading {
    display: none; flex-direction: column; align-items: center;
    gap: 14px; margin-top: 36px; padding: 36px;
}
.loading.active { display: flex; }
.spinner {
    width: 36px; height: 36px;
    border: 3px solid var(--border);
    border-top-color: #818cf8;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading-text { color: var(--text-secondary); font-size: 14px; }

/* --- 结果容器 --- */
.result-container { display: none; margin-top: 32px; text-align: left; }
.result-container.active { display: block; animation: fadeSlideIn 0.3s ease; }
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* =============================================
   邮箱查询结果组件（保持不变）
   ============================================= */
.result-header {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 20px 24px; border-radius: var(--radius);
    margin-bottom: 20px;
    border: 1px solid;
}
.result-header.safe-result {
    background: var(--success-bg);
    border-color: var(--success-border);
}
.result-header.breach-result.low    { background: var(--warning-bg); border-color: var(--warning-border); }
.result-header.breach-result.medium { background: var(--warning-bg); border-color: var(--warning-border); }
.result-header.breach-result.high   { background: var(--danger-bg);  border-color: var(--danger-border); }
.result-header.breach-result.critical { background: var(--critical-bg); border-color: var(--critical-border); }

.result-icon {
    width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.result-icon.safe     { background: rgba(16,185,129,0.15); color: var(--success); }
.result-icon.low      { background: rgba(245,158,11,0.15); color: var(--warning); }
.result-icon.medium   { background: rgba(245,158,11,0.2);  color: var(--warning); }
.result-icon.high     { background: rgba(239,68,68,0.15);  color: var(--danger); }
.result-icon.critical { background: rgba(220,38,38,0.2);   color: var(--critical); }

.result-summary { flex: 1; }
.result-summary h3 {
    font-size: 17px; font-weight: 600; margin-bottom: 4px;
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.email-query-text { font-size: 13px; color: var(--text-muted); font-family: monospace; margin-bottom: 6px; }
.result-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

.risk-badge {
    display: inline-block; padding: 3px 10px;
    border-radius: 20px; font-size: 11px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap;
}
.risk-badge.safe     { background: rgba(16,185,129,0.15); color: var(--success); }
.risk-badge.low      { background: rgba(245,158,11,0.15); color: var(--warning); }
.risk-badge.medium   { background: rgba(245,158,11,0.2);  color: var(--warning); }
.risk-badge.high     { background: rgba(239,68,68,0.15);  color: var(--danger); }
.risk-badge.critical { background: rgba(220,38,38,0.2);   color: var(--critical); }

.breach-section-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 12px;
}
.breach-list { display: flex; flex-direction: column; gap: 10px; }
.breach-card {
    padding: 18px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition);
}
.breach-card:hover { background: var(--bg-card-hover); border-color: rgba(99,102,241,0.2); }
.breach-card.breach-severe  { border-left-color: var(--danger); }
.breach-card.breach-warning { border-left-color: var(--warning); }

.breach-card-header {
    display: flex; justify-content: space-between;
    align-items: flex-start; gap: 12px; margin-bottom: 10px;
}
.breach-brand { display: flex; align-items: center; gap: 10px; }
.breach-logo {
    width: 32px; height: 32px; object-fit: contain;
    border-radius: 6px; background: rgba(255,255,255,0.05); padding: 4px;
}
.breach-logo-fallback {
    width: 32px; height: 32px; border-radius: 6px;
    background: var(--bg-secondary); border: 1px solid var(--border);
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 700; color: var(--text-secondary); text-transform: uppercase;
}
.breach-brand-info { display: flex; flex-direction: column; gap: 2px; }
.breach-name { font-size: 15px; font-weight: 600; }
.breach-domain { font-size: 12px; color: var(--text-muted); }

.breach-meta-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; flex-shrink: 0; }
.breach-date { font-size: 13px; color: var(--text-muted); }
.breach-count { font-size: 12px; color: var(--text-secondary); }

.breach-desc-wrap { margin-bottom: 10px; }
.breach-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.breach-data-types { display: flex; flex-wrap: wrap; gap: 6px; }
.data-tag {
    padding: 3px 10px;
    background: var(--bg-secondary); border: 1px solid var(--border);
    border-radius: 20px; font-size: 12px; color: var(--text-secondary);
}
.data-tag.sensitive {
    background: rgba(239,68,68,0.08);
    border-color: rgba(239,68,68,0.25);
    color: #fca5a5; font-weight: 500;
}
.breach-unverified { margin-top: 8px; font-size: 12px; color: var(--text-muted); font-style: italic; }

.action-box {
    margin-top: 16px; padding: 18px 20px;
    background: rgba(99,102,241,0.05);
    border: 1px solid rgba(99,102,241,0.12);
    border-radius: var(--radius);
}
.action-box-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; color: #a5b4fc; margin-bottom: 12px;
}
.action-list { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.action-list li {
    font-size: 13px; color: var(--text-secondary);
    padding-left: 20px; position: relative;
}
.action-list li::before {
    content: '→'; position: absolute; left: 0;
    color: #a5b4fc; font-weight: 700;
}

.demo-note {
    display: flex; align-items: center; gap: 7px;
    margin-top: 14px; padding: 10px 14px;
    background: rgba(245,158,11,0.06);
    border: 1px solid rgba(245,158,11,0.15);
    border-radius: var(--radius-sm);
    font-size: 12px; color: var(--warning);
}

/* =============================================
   密码查询结果组件
   ============================================= */
.password-result-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg); overflow: hidden;
}
.pw-result-header {
    display: flex; align-items: center; gap: 14px;
    padding: 20px 24px; border-bottom: 1px solid var(--border);
}
.pw-result-header.safe     { background: var(--success-bg); border-bottom-color: var(--success-border); }
.pw-result-header.low      { background: var(--warning-bg); border-bottom-color: var(--warning-border); }
.pw-result-header.medium   { background: var(--warning-bg); border-bottom-color: var(--warning-border); }
.pw-result-header.high     { background: var(--danger-bg);  border-bottom-color: var(--danger-border); }
.pw-result-header.critical { background: var(--critical-bg); border-bottom-color: var(--critical-border); }

.pw-result-icon { flex-shrink: 0; }
.pw-result-icon.safe svg { color: var(--success); }
.pw-result-icon.high svg, .pw-result-icon.critical svg { color: var(--danger); }
.pw-result-title h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }

.pw-count-display {
    padding: 20px 24px; display: flex; align-items: baseline; gap: 10px;
    border-bottom: 1px solid var(--border);
}
.pw-count-num { font-size: 36px; font-weight: 800; letter-spacing: -0.02em; }
.pw-count-num.critical { color: var(--critical); }
.pw-count-num.high     { color: var(--danger); }
.pw-count-num.medium   { color: var(--warning); }
.pw-count-num.low      { color: var(--warning); }
.pw-count-num.safe     { color: var(--success); }
.pw-count-label { font-size: 14px; color: var(--text-secondary); }

.pw-suggestion {
    padding: 16px 24px; font-size: 14px; color: var(--text-secondary);
    line-height: 1.7; border-bottom: 1px solid var(--border);
}
.kanon-explainer { padding: 20px 24px; }
.kanon-title {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; font-weight: 600; color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px;
}
.kanon-steps { display: flex; flex-direction: column; gap: 12px; }
.kanon-step { display: flex; align-items: flex-start; gap: 12px; }
.kanon-step-num {
    width: 24px; height: 24px; border-radius: 50%;
    background: rgba(99,102,241,0.15); color: #a5b4fc;
    font-size: 12px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0; margin-top: 2px;
}
.kanon-step-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.kanon-code {
    display: inline-block; margin-top: 4px; padding: 4px 10px;
    background: var(--bg-secondary); border-radius: 6px;
    font-family: "SF Mono","Fira Code","Consolas",monospace;
    font-size: 12px; color: var(--text-secondary);
}
.hash-prefix { color: #a5b4fc; font-weight: 700; }
.hash-suffix { color: var(--text-muted); }

/* =============================================
   错误提示
   ============================================= */
.error-toast {
    display: none; margin-top: 12px;
    padding: 12px 18px;
    background: rgba(239,68,68,0.08);
    border: 1px solid rgba(239,68,68,0.2);
    border-radius: var(--radius-sm);
    color: var(--danger); font-size: 14px; text-align: center;
}
.error-toast.active { display: block; }

/* =============================================
   数据统计区（全新设计）
   ============================================= */
.stats-section {
    padding: 72px 24px;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(99,102,241,0.06);
    border-bottom: 1px solid rgba(99,102,241,0.06);
    position: relative; overflow: hidden;
}
.stats-section::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 50% 80% at 20% 50%, rgba(99,102,241,0.04) 0%, transparent 50%),
        radial-gradient(ellipse 50% 80% at 80% 50%, rgba(6,182,212,0.03) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    position: relative; z-index: 1;
    max-width: 900px; margin: 0 auto;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}

.stat-card {
    text-align: center; padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid rgba(99,102,241,0.08);
    border-radius: var(--radius-lg);
    transition: all var(--transition-slow);
    position: relative; overflow: hidden;
}
.stat-card::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, rgba(99,102,241,0.5), transparent);
    opacity: 0; transition: opacity var(--transition-slow);
}
.stat-card:hover {
    border-color: rgba(99,102,241,0.2);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.stat-card:hover::after { opacity: 1; }

.stat-icon-wrap {
    width: 48px; height: 48px; margin: 0 auto 16px;
    border-radius: 12px;
    background: rgba(99,102,241,0.1);
    display: flex; align-items: center; justify-content: center;
    color: #818cf8;
}

.stat-number {
    font-size: 36px; font-weight: 800; letter-spacing: -0.02em;
    color: var(--text-primary); margin-bottom: 8px;
    line-height: 1;
}
.stat-label {
    font-size: 14px; font-weight: 600; color: var(--text-secondary);
    margin-bottom: 6px;
}
.stat-sub {
    font-size: 12px; color: var(--text-muted);
}

/* =============================================
   工作原理
   ============================================= */
.how-section {
    padding: 100px 24px;
    background: var(--bg-primary);
    position: relative;
}
.how-container { max-width: 960px; margin: 0 auto; position: relative; z-index: 1; }
.section-title { text-align: center; font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.section-subtitle { text-align: center; font-size: 15px; color: var(--text-muted); margin-bottom: 56px; }

.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.how-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid rgba(99,102,241,0.06);
    border-radius: var(--radius-lg);
    transition: all var(--transition-slow);
    position: relative; overflow: hidden;
}
.how-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.03) 0%, transparent 50%);
    pointer-events: none;
}
.how-card:hover {
    border-color: rgba(99,102,241,0.15);
    box-shadow: 0 4px 24px rgba(0,0,0,0.2);
}

.how-card-header { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; position: relative; z-index: 1; }
.how-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
}
.email-icon    { background: rgba(99,102,241,0.12); color: #818cf8; }
.password-icon { background: rgba(16,185,129,0.12); color: var(--success); }
.how-card h3 { font-size: 17px; font-weight: 600; }
.how-steps { list-style: none; display: flex; flex-direction: column; gap: 10px; counter-reset: step; position: relative; z-index: 1; }
.how-steps li {
    font-size: 13px; color: var(--text-secondary);
    padding-left: 28px; position: relative; line-height: 1.6;
    counter-increment: step;
}
.how-steps li::before {
    content: counter(step);
    position: absolute; left: 0;
    width: 20px; height: 20px; top: 1px;
    background: rgba(99,102,241,0.12);
    color: #818cf8; border-radius: 50%;
    font-size: 10px; font-weight: 700;
    display: flex; align-items: center; justify-content: center;
}

/* =============================================
   功能特性（全新设计）
   ============================================= */
.features-section {
    padding: 100px 24px;
    max-width: 1060px; margin: 0 auto;
    background: var(--bg-primary);
}
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.feature-card {
    padding: 36px 32px;
    background: var(--bg-card);
    border: 1px solid rgba(99,102,241,0.05);
    border-radius: var(--radius-lg);
    transition: all var(--transition-slow);
    position: relative; overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at center, rgba(99,102,241,0.04) 0%, transparent 60%);
    opacity: 0; transition: opacity var(--transition-slow);
    pointer-events: none;
}
.feature-card:hover {
    border-color: rgba(99,102,241,0.2);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}
.feature-card:hover::before { opacity: 1; }

.feature-icon {
    width: 56px; height: 56px; border-radius: 14px;
    background: rgba(99,102,241,0.1); color: #818cf8;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 20px; transition: all var(--transition-slow);
}
.feature-card:hover .feature-icon {
    background: rgba(99,102,241,0.16);
    transform: scale(1.05);
}
.feature-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.feature-card p  { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* =============================================
   CTA 监控注册
   ============================================= */
.cta-section {
    padding: 80px 24px;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(99,102,241,0.06);
}
.cta-card {
    max-width: 920px; margin: 0 auto; text-align: center;
    padding: 56px 40px;
    background: var(--bg-card); border: 1px solid rgba(99,102,241,0.08);
    border-radius: var(--radius-lg); position: relative;
}
.cta-badge {
    position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
    padding: 5px 18px;
    background: linear-gradient(135deg, #6366f1, #3b82f6);
    color: white;
    border-radius: 20px; font-size: 12px; font-weight: 600;
    box-shadow: 0 4px 12px rgba(99,102,241,0.3);
}
.cta-title { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.cta-desc { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 40px; }

/* 定价卡片 */
.pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 40px; }
.pricing-card {
    padding: 24px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius); text-align: left;
    transition: all var(--transition-slow); position: relative;
}
.pricing-card.featured {
    border-color: #6366f1;
    background: rgba(99,102,241,0.06);
    transform: scale(1.04);
    box-shadow: 0 0 32px rgba(99,102,241,0.1);
}
.pricing-badge-hot {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 3px 14px;
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    color: white;
    border-radius: 20px; font-size: 11px; font-weight: 700; white-space: nowrap;
}
.pricing-tier { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.pricing-price { font-size: 32px; font-weight: 800; color: var(--text-primary); margin-bottom: 16px; }
.pricing-price span { font-size: 13px; font-weight: 400; color: var(--text-muted); }
.pricing-features { list-style: none; margin-bottom: 20px; }
.pricing-features li {
    padding: 7px 0; font-size: 13px; color: var(--text-secondary);
    border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 6px;
}
.pricing-features li:last-child { border-bottom: none; }
.pricing-features li::before { content: '✓'; color: var(--success); font-weight: 700; }
.pricing-btn {
    width: 100%; padding: 10px; border-radius: var(--radius-sm);
    background: transparent; border: 1px solid var(--border);
    color: var(--text-secondary); font-size: 13px; cursor: not-allowed; opacity: 0.7;
}
.featured-btn {
    background: rgba(99,102,241,0.1);
    border-color: rgba(99,102,241,0.3);
    color: #a5b4fc;
}

/* 订阅表单 */
.subscribe-label { font-size: 14px; color: var(--text-secondary); margin-bottom: 12px; }
.subscribe-form { max-width: 480px; margin: 0 auto; }
.subscribe-form .input-group { background: var(--bg-primary); border-color: rgba(99,102,241,0.1); }

/* =============================================
   响应式
   ============================================= */
@media (max-width: 768px) {
    .hero-title { font-size: 38px; }
    .hero-subtitle { font-size: 14px; }
    .trust-badges { gap: 8px; }
    .trust-badge { padding: 6px 12px; font-size: 11px; }
    .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .stat-card { padding: 20px 12px; }
    .stat-number { font-size: 26px; }
    .stat-sub { display: none; }
    .how-grid { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; }
    .pricing-card.featured { transform: none; }
    .query-tabs { flex-direction: column; }
    .input-hint-row { flex-direction: column; gap: 6px; }
    .cta-card { padding: 40px 20px; }
    .section-title { font-size: 24px; }
    .breach-card-header { flex-direction: column; gap: 8px; }
    .breach-meta-right { align-items: flex-start; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 30px; }
}