/* ============================================================
   Milo Input Portal — CSS
   ============================================================ */

/* 1. Variables & Reset
   ----------------------------------------------------------- */
:root {
    --color-primary: #1a6b5a;
    --color-primary-dark: #145245;
    --color-primary-light: #e8f5f1;
    --color-secondary: #2c5282;
    --color-accent: #38a169;
    --color-bg: #f7fafc;
    --color-surface: #ffffff;
    --color-text: #1a202c;
    --color-text-muted: #718096;
    --color-border: #e2e8f0;
    --color-danger: #e53e3e;
    --radius: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --font-sans: system-ui, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    --container-max: 1100px;
}

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

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); text-decoration: underline; }

/* 2. Layout
   ----------------------------------------------------------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.main-content {
    min-height: calc(100vh - 140px);
}

/* 3. Navigation
   ----------------------------------------------------------- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none !important;
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-icon { font-size: 24px; }
.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary);
}

.main-nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--color-text-muted);
    transition: all 0.15s;
    text-decoration: none !important;
}

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

/* 4. Buttons
   ----------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    border: 2px solid transparent;
    text-decoration: none !important;
    line-height: 1;
}

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

.btn-primary:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

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

.btn-danger:hover {
    background: #fff5f5;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 5. Hero Section
   ----------------------------------------------------------- */
.hero {
    background: linear-gradient(135deg, #e8f5f1 0%, #f7fafc 60%, #ebf4ff 100%);
    padding: 80px 0 60px;
    border-bottom: 1px solid var(--color-border);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1.1;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-secondary);
    font-weight: 600;
    margin-bottom: 16px;
}

.hero-desc {
    font-size: 16px;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 28px;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* Phone mockup */
.phone-mockup {
    background: #1a202c;
    border-radius: 32px;
    padding: 12px;
    box-shadow: var(--shadow-md), 0 20px 60px rgba(0,0,0,0.15);
    max-width: 300px;
    margin: 0 auto;
}

.phone-screen {
    background: #fff;
    border-radius: 22px;
    padding: 16px;
    border: 2px solid #2d3748;
}

.mock-keyboard { margin-bottom: 10px; }
.mock-row {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-bottom: 4px;
}

.mock-key {
    width: 26px;
    height: 30px;
    background: #f0f4f8;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #4a5568;
    border: 1px solid #cbd5e0;
}

.mock-key.highlight {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
    font-size: 13px;
}

.mock-candidates {
    display: flex;
    gap: 6px;
    padding: 6px 0;
    border-top: 1px solid #f0f0f0;
}

.mock-cand {
    flex: 1;
    text-align: center;
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 4px;
    border-radius: 4px;
}

.mock-cand.active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    font-weight: 600;
}

/* 6. Features
   ----------------------------------------------------------- */
.features {
    padding: 72px 0;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    color: var(--color-text);
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 28px 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
}

.feature-card p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* 7. Privacy Statement
   ----------------------------------------------------------- */
.privacy-statement {
    background: linear-gradient(135deg, #e8f5f1 0%, #f0fff4 100%);
    padding: 72px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.privacy-card {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}

.privacy-icon { font-size: 48px; margin-bottom: 20px; }

.privacy-card h2 {
    font-size: 26px;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.privacy-card p {
    font-size: 15px;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 12px;
}

.privacy-highlight {
    background: rgba(255,255,255,0.6);
    border-radius: 8px;
    padding: 12px 16px !important;
    margin-top: 16px !important;
}

/* 8. Recent News
   ----------------------------------------------------------- */
.recent-news {
    padding: 64px 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.section-header .section-title {
    margin-bottom: 0;
    text-align: left;
}

.section-more {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item {
    display: block;
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none !important;
    transition: all 0.15s;
}

.news-item:hover { padding-left: 12px; }

.news-item:last-child { border-bottom: none; }

.news-item-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
    transition: color 0.15s;
}

.news-item:hover .news-item-title { color: var(--color-primary); }

.news-item-date {
    font-size: 12px;
    color: var(--color-text-muted);
}

/* 9. Download Section
   ----------------------------------------------------------- */
.download {
    padding: 72px 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    max-width: 560px;
    margin: 0 auto;
}

.download-card {
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.download-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(26, 107, 90, 0.1);
}

.download-icon { font-size: 36px; margin-bottom: 16px; }
.download-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.download-card p { font-size: 13px; color: var(--color-text-muted); margin-bottom: 20px; }

/* 10. Footer
   ----------------------------------------------------------- */
.site-footer {
    background: #1a202c;
    color: #a0aec0;
    padding: 32px 0;
    text-align: center;
}

.footer-text {
    font-size: 14px;
    margin-bottom: 4px;
}

.footer-subtext {
    font-size: 12px;
    color: #718096;
}

.footer-beian {
    margin-top: 12px;
    font-size: 12px;
    color: #718096;
}

.footer-beian a {
    color: #718096;
    text-decoration: none;
}

.footer-beian a:hover { color: #a0aec0; text-decoration: underline; }

/* 11. News List Page
   ----------------------------------------------------------- */
.page-header {
    padding: 48px 0 32px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 32px;
}

.page-title { font-size: 28px; font-weight: 700; }
.page-desc { font-size: 15px; color: var(--color-text-muted); margin-top: 8px; }

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.article-item {
    display: block;
    padding: 28px 0;
    border-bottom: 1px solid var(--color-border);
    text-decoration: none !important;
    transition: padding-left 0.15s;
}

.article-item:hover { padding-left: 8px; }
.article-item:last-child { border-bottom: none; }

.article-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 6px;
    transition: color 0.15s;
}

.article-item:hover .article-title { color: var(--color-primary); }

.article-meta { font-size: 12px; color: var(--color-text-muted); margin-bottom: 8px; }
.article-excerpt { font-size: 14px; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 8px; }
.article-read-more { font-size: 13px; color: var(--color-primary); font-weight: 500; }

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 32px 0;
}

.page-link { color: var(--color-primary); font-weight: 500; }
.page-info { color: var(--color-text-muted); font-size: 14px; }

.empty-state { text-align: center; padding: 64px 0; color: var(--color-text-muted); }
.empty-state p { margin-bottom: 16px; }

/* 12. News Detail Page
   ----------------------------------------------------------- */
.article-container { max-width: 720px; }

.article { padding: 48px 0; }

.article-header { margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--color-border); }

.article-header .article-title {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
    color: var(--color-text);
}

.article-meta { font-size: 13px; color: var(--color-text-muted); display: flex; gap: 12px; }
.meta-sep { color: var(--color-border); }

/* Prose styles for article body */
.prose { font-size: 16px; line-height: 1.8; color: var(--color-text); }
.prose h1, .prose h2, .prose h3, .prose h4 { font-weight: 700; margin: 32px 0 16px; line-height: 1.3; }
.prose h1 { font-size: 28px; }
.prose h2 { font-size: 22px; border-bottom: 1px solid var(--color-border); padding-bottom: 8px; }
.prose h3 { font-size: 18px; }
.prose p { margin-bottom: 16px; }
.prose ul, .prose ol { margin: 16px 0; padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose code { background: #f0f4f8; padding: 2px 6px; border-radius: 4px; font-size: 0.9em; font-family: 'Courier New', monospace; }
.prose pre { background: #1a202c; color: #e2e8f0; padding: 16px; border-radius: var(--radius); overflow-x: auto; margin: 20px 0; }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose blockquote { border-left: 4px solid var(--color-primary); padding-left: 16px; margin: 20px 0; color: var(--color-text-muted); }
.prose a { color: var(--color-primary); }
.prose strong { font-weight: 600; }
.prose hr { border: none; border-top: 1px solid var(--color-border); margin: 32px 0; }

.article-footer { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.back-link { color: var(--color-primary); font-size: 14px; }

/* 13. Contact / Feedback Form
   ----------------------------------------------------------- */
.contact-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-surface);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.form-group { margin-bottom: 20px; }

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
}

.form-label.required::after { content: ' *'; color: var(--color-danger); }

.form-input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color 0.15s;
    outline: none;
}

.form-input:focus { border-color: var(--color-primary); }
.form-input::placeholder { color: #cbd5e0; }

.form-textarea { resize: vertical; min-height: 140px; }

.form-hint { font-size: 12px; color: var(--color-text-muted); margin-top: 4px; text-align: right; }

.form-actions { display: flex; gap: 12px; margin-top: 24px; }

/* Alerts */
.alert { padding: 12px 16px; border-radius: var(--radius); font-size: 14px; margin-bottom: 16px; }
.alert-success { background: #f0fff4; color: #276749; border: 1px solid #c6f6d5; }
.alert-error { background: #fff5f5; color: #c53030; border: 1px solid #feb2b2; }

/* 14. Input Methods Section
   ----------------------------------------------------------- */
.input-methods {
    padding: 72px 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.section-desc {
    text-align: center;
    font-size: 15px;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: -32px auto 40px;
    line-height: 1.7;
}

.methods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.method-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px 20px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.method-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.method-card.method-upcoming {
    border-style: dashed;
    opacity: 0.85;
}

.method-icon {
    font-size: 28px;
    margin-bottom: 12px;
}

.method-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.method-card p {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.badge-soon {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    background: #fefcbf;
    color: #975a16;
    padding: 2px 8px;
    border-radius: 10px;
    vertical-align: middle;
    margin-left: 4px;
}

/* 15. WebDAV Section
   ----------------------------------------------------------- */
.webdav-section {
    padding: 72px 0;
    background: linear-gradient(135deg, #ebf8ff 0%, #f7fafc 100%);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.webdav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.webdav-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 28px 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.webdav-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.webdav-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-primary);
}

.webdav-card p {
    font-size: 14px;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* 16. Responsive
   ----------------------------------------------------------- */
@media (max-width: 768px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-visual { order: -1; }
    .hero-title { font-size: 36px; }
    .hero-buttons { justify-content: center; }
    .phone-mockup { max-width: 260px; }
    .features-grid { grid-template-columns: 1fr; }
    .contact-card { padding: 24px; }
    .article-header .article-title { font-size: 24px; }
    .section-header { flex-direction: column; gap: 8px; }
    .section-header .section-title { text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 48px 0 40px; }
    .hero-title { font-size: 30px; }
    .main-nav { gap: 4px; }
    .nav-link { padding: 6px 10px; font-size: 13px; }
    .form-actions { flex-direction: column; }
    .form-actions .btn { width: 100%; }
}