/* CareMyWish 官网样式 — 与 iOS App AppPalette 配色对齐 */

:root {
    --color-primary: #2E74B5;
    --color-primary-dark: #245C92;
    --color-primary-light: #4A8FCC;
    --color-accent: #E8A33D;
    --color-warm: #F0E6D2;
    --color-bg: #FAFAF8;
    --color-card: #FFFFFF;
    --color-text: #1F2937;
    --color-text-secondary: #4B5563;
    --color-text-tertiary: #6B7280;
    --color-border: #E5E7EB;
    --color-success: #4F8A5B;
    --color-danger: #C9534F;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(46, 116, 181, 0.08);
    --shadow-lg: 0 12px 32px rgba(46, 116, 181, 0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;

    --font-zh: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
    --font-en: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --container: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-zh);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.lang-en {
    font-family: var(--font-en);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ===== 顶部导航 ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid var(--color-border);
}

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

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
}

.brand-logo {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-size: 15px;
    font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-toggle {
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s;
}

.lang-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.nav-toggle {
    display: none;
    background: transparent;
    border: none;
    width: 32px;
    height: 32px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform 0.25s;
}

/* ===== Hero ===== */
.hero {
    padding: 80px 0 96px;
    text-align: center;
    background: linear-gradient(180deg, var(--color-warm) 0%, var(--color-bg) 100%);
}

.hero-eyebrow {
    display: inline-block;
    background: rgba(46, 116, 181, 0.1);
    color: var(--color-primary);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.hero .lead {
    font-size: 19px;
    color: var(--color-text-secondary);
    max-width: 680px;
    margin: 0 auto 36px;
}

.hero-cta {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.hero-meta {
    margin-top: 28px;
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* ===== 通用 section ===== */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 34px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 14px;
    color: var(--color-text);
    letter-spacing: -0.3px;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 17px;
    max-width: 640px;
    margin: 0 auto 56px;
}

/* ===== 功能格 ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 18px;
}

.feature-card.accent .feature-icon {
    background: linear-gradient(135deg, var(--color-accent), #d18a25);
}

.feature-card.success .feature-icon {
    background: linear-gradient(135deg, var(--color-success), #3a6b46);
}

.feature-card h3 {
    font-size: 19px;
    margin-bottom: 10px;
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.65;
}

/* ===== 数据条 ===== */
.stats {
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 56px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
    text-align: center;
}

.stat-num {
    font-size: 38px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ===== 流程步骤 ===== */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    counter-reset: step;
}

.step {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    position: relative;
}

.step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 14px;
}

.step h4 {
    font-size: 17px;
    margin-bottom: 8px;
}

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

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: #fff;
    text-align: center;
    padding: 72px 0;
    border-radius: var(--radius-lg);
    margin: 0 24px;
}

.cta-section h2 {
    font-size: 30px;
    margin-bottom: 14px;
}

.cta-section p {
    font-size: 17px;
    opacity: 0.92;
    margin-bottom: 28px;
}

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

.cta-section .btn-primary:hover {
    background: var(--color-warm);
    color: var(--color-primary-dark);
}

/* ===== 文档页排版 ===== */
.doc-hero {
    padding: 60px 0 32px;
    text-align: center;
    background: linear-gradient(180deg, var(--color-warm) 0%, var(--color-bg) 100%);
}

.doc-hero h1 {
    font-size: 40px;
    margin-bottom: 10px;
}

.doc-hero .lead {
    color: var(--color-text-secondary);
    font-size: 17px;
}

.doc-content {
    max-width: 820px;
    margin: 0 auto;
    padding: 56px 24px 96px;
}

.doc-content h2 {
    font-size: 26px;
    margin: 40px 0 14px;
    padding-top: 12px;
    color: var(--color-text);
}

.doc-content h3 {
    font-size: 19px;
    margin: 26px 0 10px;
    color: var(--color-text);
}

.doc-content p,
.doc-content li {
    color: var(--color-text-secondary);
    margin-bottom: 12px;
    line-height: 1.75;
}

.doc-content ul,
.doc-content ol {
    padding-left: 24px;
    margin-bottom: 18px;
}

.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}

.doc-content th,
.doc-content td {
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    text-align: left;
}

.doc-content th {
    background: var(--color-warm);
    font-weight: 600;
}

.doc-content code {
    background: rgba(46, 116, 181, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    font-family: "SF Mono", Menlo, Monaco, monospace;
    color: var(--color-primary-dark);
}

.callout {
    background: var(--color-warm);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    margin: 20px 0;
    font-size: 15px;
    color: var(--color-text);
}

.callout.info {
    background: rgba(46, 116, 181, 0.08);
    border-left-color: var(--color-primary);
}

/* ===== FAQ ===== */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    overflow: hidden;
}

.faq-q {
    padding: 18px 22px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--color-text);
    user-select: none;
}

.faq-q::after {
    content: "+";
    color: var(--color-primary);
    font-size: 22px;
    transition: transform 0.2s;
}

.faq-item.open .faq-q::after {
    content: "−";
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 22px;
    color: var(--color-text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.faq-item.open .faq-a {
    max-height: 600px;
    padding: 0 22px 18px;
}

/* ===== 下载页 ===== */
.download-hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--color-warm), var(--color-bg));
}

.appstore-badge {
    display: inline-block;
    background: #000;
    color: #fff;
    padding: 14px 28px;
    border-radius: 12px;
    margin-top: 20px;
    transition: transform 0.15s;
}

.appstore-badge:hover {
    transform: translateY(-2px);
    color: #fff;
}

.appstore-badge .small {
    font-size: 12px;
    opacity: 0.85;
    display: block;
    margin-bottom: 2px;
}

.appstore-badge .big {
    font-size: 20px;
    font-weight: 600;
}

/* ===== Footer ===== */
.site-footer {
    background: #1F2937;
    color: #cbd2da;
    padding: 56px 0 32px;
    margin-top: 64px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 36px;
    margin-bottom: 36px;
}

.footer-grid h4 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 14px;
}

.footer-grid ul {
    list-style: none;
}

.footer-grid li {
    margin-bottom: 8px;
}

.footer-grid a {
    color: #cbd2da;
    font-size: 14px;
}

.footer-grid a:hover {
    color: #fff;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    color: #97a1ae;
    margin-top: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #97a1ae;
}

/* ===== 404 ===== */
.error-page {
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 24px;
}

.error-page .code {
    font-size: 96px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.error-page h1 {
    font-size: 28px;
    margin: 18px 0 12px;
}

.error-page p {
    color: var(--color-text-secondary);
    margin-bottom: 28px;
}

/* ===== 仅在指定语言下显示 ===== */
[data-lang]:not([data-lang=""]) {
    display: none;
}

body.lang-zh [data-lang="zh"] {
    display: block;
}

body.lang-en [data-lang="en"] {
    display: block;
}

[data-lang="zh"].inline,
[data-lang="en"].inline {
    display: none;
}

body.lang-zh [data-lang="zh"].inline {
    display: inline;
}

body.lang-en [data-lang="en"].inline {
    display: inline;
}

/* ===== 移动端 ===== */
@media (max-width: 860px) {
    .hero h1 {
        font-size: 34px;
    }
    .hero .lead {
        font-size: 16px;
    }
    .section-title {
        font-size: 26px;
    }
    .section {
        padding: 56px 0;
    }
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        gap: 0;
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        padding: 12px 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s;
    }
    .nav-links.open {
        max-height: 500px;
    }
    .nav-links li {
        width: 100%;
    }
    .nav-links a {
        display: block;
        padding: 14px 24px;
        border-bottom: 1px solid var(--color-border);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .doc-hero h1 {
        font-size: 28px;
    }
    .cta-section {
        margin: 0;
        border-radius: 0;
    }
    .cta-section h2 {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero {
        padding: 56px 0 64px;
    }
    .hero h1 {
        font-size: 28px;
    }
}