/* ============================================
   合规派 - 样式表 v2
   主色调：翡翠绿（Emerald）
   ============================================ */

:root {
    --primary: #059669;
    --primary-light: #10b981;
    --primary-lighter: #34d399;
    --primary-dark: #047857;
    --primary-bg: #ecfdf5;
    --primary-bg2: #d1fae5;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --danger-bg: #fecaca;
    --warning: #f59e0b;
    --warning-light: #fffbeb;
    --warning-bg: #fde68a;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 8px;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);
    --transition: all 0.25s ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--gray-800);
    background: #fff;
    line-height: 1.6;
    min-height: 100vh;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- 导航栏 ---------- */
.navbar {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-100);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-svg {
    flex-shrink: 0;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--gray-500);
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

/* ---------- Hero区 ---------- */
.hero {
    position: relative;
    padding: 64px 0 72px;
    text-align: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, #ecfdf5 0%, #fff 100%);
    z-index: 0;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 500px;
    background: radial-gradient(ellipse, rgba(16,185,129,0.12) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: #fff;
    border: 1px solid var(--primary-bg2);
    border-radius: 100px;
    font-size: 0.82rem;
    color: var(--primary-dark);
    font-weight: 500;
    margin-bottom: 24px;
    box-shadow: var(--shadow-xs);
}

.hero-badge-dot {
    width: 7px;
    height: 7px;
    background: var(--primary-light);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.hero-title {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.08rem;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 40px;
}

/* ---------- 上传区 ---------- */
.upload-section {
    max-width: 560px;
    margin: 0 auto 20px;
}

.upload-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    border: 1px solid var(--gray-100);
}

.upload-area {
    border: 2px dashed var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 44px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--gray-50);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-light);
    background: var(--primary-bg);
}

.upload-icon {
    color: var(--gray-300);
    margin-bottom: 14px;
    transition: var(--transition);
}

.upload-area:hover .upload-icon,
.upload-area.dragover .upload-icon {
    color: var(--primary);
    transform: translateY(-2px);
}

.upload-title {
    font-size: 1.05rem;
    color: var(--gray-700);
    margin-bottom: 6px;
    font-weight: 600;
}

.upload-formats {
    color: var(--gray-400);
    font-size: 0.82rem;
}

.hero-trust {
    font-size: 0.82rem;
    color: var(--gray-400);
}

/* ---------- 进度区 ---------- */
.progress-section {
    padding: 24px;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.progress-filename {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--gray-700);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 70%;
}

.progress-percent {
    font-weight: 700;
    color: var(--primary);
    font-size: 0.9rem;
}

.progress-bar {
    height: 8px;
    background: var(--gray-100);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-light), var(--primary));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-status {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ---------- 处理状态 ---------- */
.status-section {
    padding: 8px;
}

.status-card {
    padding: 32px 24px;
    text-align: center;
}

.status-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-100);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

.status-spinner.large {
    width: 52px;
    height: 52px;
    border-width: 4px;
}

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

.status-title {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 4px;
    font-weight: 700;
}

.status-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.status-steps {
    display: flex;
    justify-content: center;
    gap: 6px;
    flex-wrap: wrap;
}

.step {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    background: var(--gray-100);
    font-size: 0.82rem;
    color: var(--gray-400);
    transition: var(--transition);
}

.step.active {
    background: var(--primary-bg);
    color: var(--primary-dark);
    font-weight: 600;
}

.step.done {
    background: var(--primary);
    color: #fff;
}

.step-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

/* ---------- 错误区 ---------- */
.error-section { padding: 8px; }

.error-card {
    background: var(--danger-light);
    border: 1px solid var(--danger-bg);
    border-radius: var(--radius-sm);
    padding: 28px 24px;
    text-align: center;
}

.error-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 8px;
}

.error-icon-large {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
}

.error-text {
    color: var(--danger);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: var(--radius-xs);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(5,150,105,0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(5,150,105,0.4);
}

.btn-outline {
    background: #fff;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary-bg);
}

.btn-retry {
    background: var(--danger);
    color: #fff;
}

.btn-lg {
    padding: 14px 36px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
}

/* ---------- 通用Section ---------- */
.section {
    padding: 72px 0;
}

.section-alt {
    background: var(--gray-50);
}

.section-title-center {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 48px;
    letter-spacing: -0.01em;
}

/* ---------- 核心优势 ---------- */
.features-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card-v2 {
    text-align: center;
    padding: 36px 24px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.feature-card-v2:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-bg2);
}

.feature-icon-wrap {
    font-size: 2.4rem;
    margin-bottom: 16px;
}

.feature-card-v2 h3 {
    font-size: 1.1rem;
    color: var(--gray-800);
    margin-bottom: 8px;
    font-weight: 700;
}

.feature-card-v2 p {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ---------- 工作原理流程 ---------- */
.steps-flow {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 0;
}

.step-item {
    text-align: center;
    flex: 1;
    max-width: 180px;
    position: relative;
}

.step-num {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.step-icon {
    font-size: 2.2rem;
    margin-bottom: 12px;
    margin-top: 12px;
}

.step-item h4 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-bottom: 6px;
    font-weight: 700;
}

.step-item p {
    font-size: 0.85rem;
    color: var(--gray-500);
    line-height: 1.5;
}

.step-connector {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-bg2), var(--primary-bg2));
    margin-top: 48px;
    flex-shrink: 0;
    position: relative;
}

.step-connector::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-left: 6px solid var(--primary-bg2);
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
}

/* ---------- 适用人群 ---------- */
.audience-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.audience-tag {
    padding: 10px 22px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: 100px;
    font-size: 0.95rem;
    color: var(--gray-700);
    font-weight: 500;
    transition: var(--transition);
}

.audience-tag:hover {
    border-color: var(--primary-light);
    color: var(--primary-dark);
    background: var(--primary-bg);
}

/* ---------- CTA ---------- */
.cta-section {
    padding: 72px 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
}

.cta-section h2 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-section p {
    font-size: 1.05rem;
    opacity: 0.85;
    margin-bottom: 32px;
}

.cta-section .btn-primary {
    background: #fff;
    color: var(--primary-dark);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.cta-section .btn-primary:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
}

/* ---------- 页脚 ---------- */
.footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
    padding: 28px 0;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--gray-700);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--gray-400);
}

/* ============================================
   报告页样式
   ============================================ */
.main-content {
    padding: 40px 0 64px;
    min-height: calc(100vh - 64px - 70px);
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 12px;
}

.report-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
}

.report-meta {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.meta-separator {
    margin: 0 8px;
    color: var(--gray-300);
}

/* 结论卡片 */
.conclusion-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 32px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 32px;
    border-left: 5px solid var(--gray-300);
}

.conclusion-card.conclusion-pass {
    border-left-color: var(--primary);
    background: var(--primary-bg);
}

.conclusion-card.conclusion-block {
    border-left-color: var(--danger);
    background: var(--danger-light);
}

.conclusion-card.conclusion-review {
    border-left-color: var(--warning);
    background: var(--warning-light);
}

.conclusion-card.conclusion-error {
    border-left-color: var(--gray-400);
}

.conclusion-icon { font-size: 3rem; flex-shrink: 0; }
.conclusion-result { font-size: 1.4rem; font-weight: 800; margin-bottom: 4px; }
.conclusion-reason { font-size: 0.95rem; color: var(--gray-600); margin-bottom: 10px; }

.conclusion-tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tag {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--primary-bg2);
    color: var(--primary-dark);
}

.tag-muted {
    background: var(--gray-200);
    color: var(--gray-600);
}

/* 信息区 */
.info-section { margin-bottom: 32px; }

.info-section > .section-title-center {
    text-align: left;
    font-size: 1.2rem;
    margin-bottom: 16px;
}

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

.info-item {
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 16px;
    border: 1px solid var(--gray-100);
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.info-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* 统计区 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.stat-card {
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    text-align: center;
    border: 1px solid var(--gray-100);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-800);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.stat-pass .stat-number { color: var(--primary); }
.stat-review .stat-number { color: var(--warning); }
.stat-block .stat-number { color: var(--danger); }

/* 帧列表 */
.frames-list { display: flex; flex-direction: column; gap: 10px; }

.frame-item {
    display: flex;
    gap: 16px;
    background: #fff;
    border-radius: var(--radius-sm);
    padding: 14px;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.frame-item:hover { box-shadow: var(--shadow-xs); }

.frame-violation {
    border-color: var(--danger-bg);
    background: #fffbfb;
}

.frame-thumb {
    width: 120px;
    height: 68px;
    border-radius: 6px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--gray-100);
}

.frame-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.frame-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 0.8rem;
}

.frame-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.frame-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
}

.frame-time {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-pass { background: var(--primary-bg2); color: var(--primary-dark); }
.badge-review { background: var(--warning-bg); color: #b45309; }
.badge-block { background: var(--danger-bg); color: var(--danger); }

.frame-detail {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--gray-500);
}

.empty-text {
    text-align: center;
    color: var(--gray-400);
    padding: 32px;
}

/* 加载页 */
.loading-page {
    text-align: center;
    padding: 80px 0;
}

.loading-text {
    color: var(--gray-500);
    margin-top: 16px;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 768px) {
    .hero { padding: 40px 0 48px; }
    .hero-title { font-size: 1.7rem; }
    .hero-subtitle { font-size: 0.95rem; }
    .hide-mobile { display: none; }

    .nav-links { gap: 20px; }
    .nav-link { font-size: 0.85rem; }

    .section { padding: 48px 0; }
    .section-title-center { font-size: 1.3rem; margin-bottom: 32px; }

    .features-grid-3 {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .steps-flow {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }

    .step-item { max-width: 100%; width: 100%; }
    .step-connector {
        width: 2px;
        height: 32px;
        margin: 0;
        background: linear-gradient(180deg, var(--primary-bg2), var(--primary-bg2));
    }
    .step-connector::after {
        right: 50%;
        top: auto;
        bottom: -4px;
        transform: translateX(50%);
        border-left: 4px solid transparent;
        border-right: 4px solid transparent;
        border-top: 6px solid var(--primary-bg2);
    }

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

    .conclusion-card {
        flex-direction: column;
        text-align: center;
        padding: 24px 16px;
    }

    .frame-item { flex-direction: column; }
    .frame-thumb { width: 100%; height: 180px; }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .cta-section h2 { font-size: 1.4rem; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.5rem; }
    .upload-area { padding: 32px 16px; }
    .status-steps { flex-direction: column; align-items: center; }
    .info-grid { grid-template-columns: 1fr; }
}

/* ============================================
   图片放大弹窗
   ============================================ */
.img-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 20px;
    cursor: zoom-out;
}

.img-modal.active {
    display: flex;
}

.img-modal-inner {
    background: #fff;
    border-radius: 14px;
    max-width: 960px;
    width: 100%;
    max-height: 92vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
    cursor: default;
}

.img-modal-head {
    display: flex;
    align-items: center;
    padding: 14px 20px;
    border-bottom: 1px solid var(--gray-100);
    gap: 12px;
}

.img-modal-title {
    flex: 1;
    font-size: .95rem;
    font-weight: 600;
    color: var(--gray-800);
}

.img-modal-open {
    font-size: .82rem;
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
    padding: 4px 10px;
    border: 1px solid var(--primary-bd);
    border-radius: 6px;
    transition: var(--transition);
}

.img-modal-open:hover {
    background: var(--primary-bg);
}

.img-modal-close {
    background: var(--gray-100);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    font-size: 1.2rem;
    line-height: 1;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.img-modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.img-modal-body {
    flex: 1;
    overflow: auto;
    background: var(--gray-100);
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.img-modal-body img {
    max-width: 100%;
    max-height: calc(92vh - 70px);
    height: auto;
    width: auto;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0,0,0,.15);
}

@media (max-width: 768px) {
    .img-modal { padding: 8px; }
    .img-modal-inner { max-width: 100%; border-radius: 10px; }
    .img-modal-head { padding: 10px 14px; }
    .img-modal-body { padding: 8px; }
}